CN1955494A - Directional control valve - Google Patents

Directional control valve Download PDF

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Publication number
CN1955494A
CN1955494A CN 200610163363 CN200610163363A CN1955494A CN 1955494 A CN1955494 A CN 1955494A CN 200610163363 CN200610163363 CN 200610163363 CN 200610163363 A CN200610163363 A CN 200610163363A CN 1955494 A CN1955494 A CN 1955494A
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CN
China
Prior art keywords
mentioned
valve rod
hollow chamber
port
sleeve
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CN 200610163363
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Chinese (zh)
Inventor
内藤钦志郎
清水雅雪
原英夫
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Amada Co Ltd
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Amada Co Ltd
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Publication of CN1955494A publication Critical patent/CN1955494A/en
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Abstract

A directional control valve, wherein a first hollow chamber and a second hollow chamber are dividedly formed in a spool rotatably or slidably inserted into a sleeve fixedly fitted into a valve housing, supply side inlets for always connecting a P port to the first hollow chamber and supply side outlets capable of switching a connection state between the first hollow chamber and supply ports are provided in the spool, discharge side inlets capable of switching a connection state between the second hollow chamber and discharge ports and a discharged outlet for always connecting the second hollow chamber to T ports are provided in the spool, and the supply side inlets and the ports are equally spaced in circumferential direction.

Description

Position control valve
Technical field
For example the present invention relates to, can free switching controls supply with the position control valve of the feeding direction of the working liquid body of driver such as oil hydraulic cylinder from oil hydraulic pump equal pressure source; More particularly, for example relate to, even adopt for the increase capacity under the situation of large diameter valve rod also can Control work liquid leakage the time, the position control valve that can realize reducing the weight of valve rod at an easy rate and can carry out the switch motion of valve rod trippingly.
Background technique
Past, as position control valve, usually the structure that adopts is: be contained in valve rod in the matching hole that is formed at the valve rod on the valve casing with being free to slide, by above-mentioned valve rod is slided from middle position to right-hand or left, the P port that will be connected with pressure source and one of the A port that is connected with driver or B port connect, and will be connected with another of tank connected T port and A port or B port; Usually, for example, the P port was realized with being connected by formed all grooves on the outer circumferential face of guiding valve of A port etc.
In addition, the example as prior art of the present invention has TOHKEMY 2001-27340 communique.
In the guiding valve in past of structure as mentioned above, the axial thickness of the shoulder of valve rod part be arranged on valve casing etc. on and the diameter of each port such as the A port that is communicated with the valve rod matching hole, B port correspondingly thicken, and the degree of depth that is formed on all grooves on the valve rod also is subjected to the restriction of intensity, thereby makes its existing problems aspect action trippingly in the weight that alleviates valve rod.In addition, just not saying aunt is in order to connect the situation that each port uses pipe, usually, owing to adopt on the valve casing of interior dress valve rod or manifold assemblies perforation processing opening and connect the structure of each opening, thereby produce overlap and can not be processed into slick and sly Qu Yuan, thereby exist in these parts because of producing the problem that drag losses is easy to become thermal source at the cross section of each opening (for example intersect rectangular part).
In addition, at valve rod is in the position control valve (for example 3 valves in 4 holes) of the mode that endwisely slips, at the both sides of the P port that connects pressure source configuration A port and B port, when above-mentioned valve rod is positioned at the neutral position, the partially enclosed P port of the shoulder of valve rod, above-mentioned P port is in blocking state with A port and being connected of B port.
Yet there is small gap in valve rod between the external diameter of the internal diameter of the matching hole of the valve rod of valve casing and valve rod in the position control valve of the form of endwisely slipping, and workflow is known from experience and leaked from this gap.As everyone knows, the leakage rate from above-mentioned gap and working fluid multiply each other in the external diameter of the pressure difference of leak, valve rod and above-mentioned gap three and are directly proportional, and are inversely proportional to the lap of the shoulder part of valve rod and the viscosity (dynamic viscosity coefficient) of working fluid.
Therefore, in order to reduce leakage rate, if the external diameter that reduces valve rod then capacity reduce, one increases lap, and then the length lengthening and the weight of valve rod increase, because have these problems, thereby often adopt the method that reduces the gap in the past, the gap of manufacturing is generally 8-10 μ m.
By doing above-mentioned gap littler, can make leakage rate still less, but do more hour when the gap, must reach highi degree of accuracy so that the operation that valve rod is assembled in the valve casing can not produce stuck phenomenon etc.; In addition, in working fluid, when having the tiny dust of 5-15 μ m for example, increase, therefore, do above-mentioned gap littler also restricted though the leakage rate that is produced by the gap is suppressed the slip resistance of valve rod.In addition, if though the gap is zero, leakage rate is zero, this moment, valve rod then can not slide.That is, slide in order to make valve rod, that is I guess atomic little also necessary gapped, so long as exist the gap pressure difference to occur, will produce the leakage of working fluid from above-mentioned gap.Be that leakage rate can not be zero.
In addition, in the position control valve of valve rod slip form, in the time will being arranged on P port on the valve casing and only setting a place,, valve rod to one-sided pushing, often is difficult to successfully slide because side pressure acts on the valve rod.Therefore, also have on the interior slip surface of the valve rod matching hole of the valve casing that embeds valve rod and form internal circle groove so that its situation around the shoulder portion of valve rod.
At this moment, be the proportional relation of straight line shape by the aperture of the internal circle groove of the slip of valve rod decision and the pass of Flow characteristics, when valve rod slided sharp, aperture linearly changed on formula ground, and the tendency that produces water hammer is in time arranged.Therefore, in order to suppress above-mentioned water hammer, can be at the shoulder portion processing v-notch of valve rod.When like this at shoulder portion processing v-notch, the lap of valve reduces, because the tendency that has leakage rate to increase wishes further to be improved.
In the example (TOHKEMY 2001-27340 communique) of above-mentioned prior art, in valve body, have the side within it that can rotate freely and have the valve rod of big hollow cavity, by making such valve rod rotation, can form and switch and the structure of the feeding direction of the driving mechanism working fluid of oil hydraulic cylinder etc. and so on is supplied with in control, promptly wish to realize general structure compactness, big capacity and the lightweight structure of valve rod.
But in the example of above-mentioned prior art, the position relation because of various port makes valve rod produce displacement a little sometimes, therefore wishes further to improve the control that the leakage rate of working fluid is carried out.
Summary of the invention
The 1st scheme of position control valve of the present invention is, in the sleeve in embedding is fixed on valve casing, be provided with: the P port that is connected with pressure source, supply with at least 2 supply ports of working fluid to driver, discharge at least 2 discharge ports of working fluid from above-mentioned driver, and make working fluid flow out to outside T port; On the valve rod that is equipped with in above-mentioned sleeve, divide with freely rotating or be free to slide and be provided with the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned valve rod is provided with the supply side inflow entrance that is often connecting above-mentioned P port and above-mentioned the 1st hollow chamber and freely switches above-mentioned the 1st hollow chamber and the above-mentioned supply side outflow opening of respectively supplying with the coupled condition of port; Simultaneously, above-mentioned valve rod is provided with and freely switches the discharge effluent outlet that above-mentioned the 2nd hollow chamber enters the mouth with above-mentioned discharge effluent of respectively discharging the coupled condition of port and often is being connected above-mentioned the 2nd hollow chamber and above-mentioned T port; And when an above-mentioned supply port was connected with above-mentioned supply side outflow opening, an above-mentioned discharge port was connected with above-mentioned discharge effluent inlet; When above-mentioned another supply port was connected with above-mentioned supply side outflow opening, above-mentioned another discharged the structure that port is connected with above-mentioned discharge effluent inlet; Above-mentioned supply side inflow entrance is arranged to uniformly-spaced being configured in the circumferencial direction of above-mentioned valve rod, is arranged to respectively with arranged spaced on the circumferencial direction of this sleeve and be formed on above-mentioned each port on the above-mentioned sleeve.
The 2nd scheme of position control valve of the present invention is on the basis of the 1st scheme, it is characterized in that: in the fluid passage that is formed for being connected each port that forms on a plurality of fluid bore that form on the above-mentioned valve casing and the above-mentioned sleeve on the outer circumferential face of above-mentioned sleeve.
The 3rd scheme of position control valve of the present invention is on the basis of the 2nd scheme, it is characterized in that: do near the sectional area the joint of above-mentioned fluid passage and above-mentioned fluid bore bigger than the sectional area that is left part by above-mentioned fluid bore.
The 4th scheme of position control valve of the present invention is on the basis of the 1st scheme, it is characterized in that: the above-mentioned supply side inflow entrance of above-mentioned valve rod is arranged on the distolateral of above-mentioned valve rod, another of above-mentioned valve rod distolateral around possess chamber and be used to store the working fluid of exerting pressure on the axis direction of this valve rod.
The 5th scheme of position control valve of the present invention is on the basis of the 1st scheme, it is characterized in that: at least one side who is arranged on above-mentioned supply side outflow opening on the above-mentioned valve rod and above-mentioned discharge effluent inlet is the hole that has the shape of parallel portion in both sides, and the above-mentioned supply port or the above-mentioned discharge port that are arranged on the above-mentioned sleeve are the holes with Qu Yuan.
The 6th scheme of position control valve of the present invention is on the basis of the 5th scheme, it is characterized in that: at least one side of above-mentioned supply port and above-mentioned discharge port is to be the hole at center to depart from the straight line that parallels with the vertical straight line in the axle center of above-mentioned valve rod radially at above-mentioned valve rod.
The 7th scheme of position control valve of the present invention is on the basis of the 1st scheme, it is characterized in that: the gap between the outer circumferential face of above-mentioned valve rod and the inner peripheral surface of above-mentioned sleeve is 8 μ m-30 μ m.
The 8th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, free to rotate, be provided with at the 2nd valve rod free to rotate of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod rotation optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The rotation that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that rotation by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, be respectively arranged with a plurality of be arranged on above-mentioned the 1st valve rod on above-mentioned inflow entrance and the above-mentioned high pressure that optionally freely is connected with these inflow entrances with port and low pressure port, and a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure with port and a plurality of above-mentioned low pressure with port respectively uniformly-spaced to be configured in circumferencial direction.
The 9th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, free to rotate, be provided with at the 2nd valve rod free to rotate of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod rotation optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The rotation that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that rotation by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, be respectively arranged with above-mentioned the 1st hollow chamber of above-mentioned the 2nd valve rod and be communicated with the above-mentioned outflow opening that is provided with and above-mentioned the 1st, the 2nd supply hole that optionally freely is connected with these outflow openings and reach optionally the attachment hole of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances with above-mentioned inflow entrance that above-mentioned the 2nd hollow chamber is communicated with setting; And a plurality of above-mentioned outflow openings, a plurality of above-mentioned the 1st, the 2nd supply holes, the attachment hole of a plurality of above-mentioned inflow entrances and a plurality of above-mentioned the 1st, the 2nd drivers are respectively uniformly-spaced to dispose in a circumferential direction.
The 10th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, free to rotate, be provided with at the 2nd valve rod free to rotate of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod rotation optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The rotation that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that rotation by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, the above-mentioned high pressure that a plurality of above-mentioned inflow entrances that are provided with on above-mentioned the 1st valve rod is set respectively and optionally freely is connected with these inflow entrances is with port and above-mentioned low pressure port, and a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure use port uniformly-spaced to dispose in a circumferential direction with port and a plurality of above-mentioned low pressure; Above-mentioned the 1st hollow chamber that a plurality of and above-mentioned the 2nd valve rod is set respectively is communicated with the above-mentioned outflow opening that is provided with and above-mentioned the 1st, the 2nd supply hole that optionally freely is connected with these outflow openings and reaches optionally the attachment hole of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances with above-mentioned inflow entrance that above-mentioned the 2nd hollow chamber is communicated with setting; And a plurality of above-mentioned outflow openings, the attachment hole of a plurality of above-mentioned the 1st, the 2nd supply holes, a plurality of above-mentioned inflow entrance and a plurality of above-mentioned the 1st, the 2nd drivers are respectively uniformly-spaced to dispose in a circumferential direction.
The 11st scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing 47A, be provided with when possessing the 1st valve rod hollow chamber, free to rotate, be provided with at the 2nd valve rod that is free to slide of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod rotation optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned cover, tube are provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that slip by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, the above-mentioned high pressure that a plurality of above-mentioned inflow entrances that are provided with on above-mentioned the 1st valve rod is set respectively and optionally freely is connected with these inflow entrances is with port and above-mentioned low pressure port, and a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure are with port and a plurality of above-mentioned low pressure with port respectively with configuration uniformly-spaced in a circumferential direction.
The 12nd scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, free to rotate, be provided with at the 2nd valve rod that is free to slide of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod rotation optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, with inflow entrance on being arranged on the 2nd valve rod freely be connected the 1st, in the position control valve of the attachment hole of the 2nd driver, above-mentioned the 1st hollow chamber that a plurality of and above-mentioned the 2nd valve rod is set respectively be communicated with the above-mentioned outflow opening that is provided with and optionally with these outflow openings freely be connected the above-mentioned the 1st, the 2nd supply hole and with above-mentioned the 2nd hollow chamber be communicated with the above-mentioned inflow entrance that is provided with and optionally with these inflow entrances freely be connected the above-mentioned the 1st, the attachment hole of the 2nd driver, and a plurality of above-mentioned outflow openings, the a plurality of the above-mentioned the 1st, the 2nd supply hole, a plurality of above-mentioned inflow entrances and a plurality of the above-mentioned the 1st, the attachment hole of the 2nd driver is respectively uniformly-spaced to dispose in a circumferential direction.
The 13rd scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, free to rotate, be provided with at the 2nd valve rod that is free to slide of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod rotation optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that slip by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, be provided with respectively and a plurality ofly be arranged on above-mentioned inflow entrance and the above-mentioned high pressure that optionally freely is connected with these inflow entrances on the 1st valve rod with port and low pressure port, and a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure are with port and a plurality of above-mentioned low pressure with port respectively with configuration uniformly-spaced in a circumferential direction; The above-mentioned inflow entrance that above-mentioned the 1st hollow chamber that is respectively arranged with a plurality of and above-mentioned the 2nd valve rod is communicated with the above-mentioned outflow opening that is provided with and above-mentioned the 1st, the 2nd supply hole that optionally freely is connected with these outflow openings and is connected setting with above-mentioned the 2nd hollow chamber reaches optionally the attachment hole of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances; And a plurality of outflow openings, a plurality of above-mentioned the 1st, the 2nd supply holes, the attachment hole of a plurality of above-mentioned inflow entrances and a plurality of above-mentioned the 1st, the 2nd drivers are respectively uniformly-spaced to dispose in a circumferential direction.
The 14th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, that can be free to slide, be provided with at the 2nd valve rod free to rotate of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod slip optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The rotation that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that rotation by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, a plurality of above-mentioned inflow entrances that are provided with on above-mentioned the 1st valve rod are set respectively and the above-mentioned high pressure that optionally freely is connected with these inflow entrances with port and above-mentioned low pressure port; And a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure are with ports and a plurality of above-mentioned low pressure with port respectively with configuration uniformly-spaced in a circumferential direction.
The 15th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, that can be free to slide, be provided with at the 2nd valve rod free to rotate of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod slip optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The rotation that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; The rotation that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, with inflow entrance on being arranged on the 2nd valve rod freely be connected the 1st, in the position control valve of the attachment hole of the 2nd driver, above-mentioned the 1st hollow chamber that a plurality of and above-mentioned the 2nd valve rod is set respectively be communicated with the above-mentioned outflow opening that is provided with and optionally with these outflow openings freely be connected the above-mentioned the 1st, the 2nd supply hole and with above-mentioned the 2nd hollow chamber be communicated with the above-mentioned inflow entrance that is provided with and optionally with these inflow entrances freely be connected the above-mentioned the 1st, the attachment hole of the 2nd driver, and a plurality of above-mentioned outflow openings, the a plurality of the above-mentioned the 1st, the 2nd supply hole, a plurality of above-mentioned inflow entrances and a plurality of the above-mentioned the 1st, the attachment hole of the 2nd driver is respectively uniformly-spaced to dispose in a circumferential direction.
The 16th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, that can be free to slide, be provided with at the 2nd valve rod free to rotate of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod slip optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The rotation that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that rotation by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, be provided with respectively and a plurality ofly be arranged on above-mentioned inflow entrance and the above-mentioned high pressure that optionally freely is connected with these inflow entrances on the 1st valve rod with port and low pressure port, and a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure are with port and a plurality of above-mentioned low pressure with port respectively with configuration uniformly-spaced in a circumferential direction; The above-mentioned inflow entrance that above-mentioned the 1st hollow chamber that is respectively arranged with a plurality of and above-mentioned the 2nd valve rod is communicated with the above-mentioned outflow opening that is provided with and above-mentioned the 1st, the 2nd supply hole that optionally freely is connected with these outflow openings and is connected setting with above-mentioned the 2nd hollow chamber reaches optionally the attachment hole of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances; And a plurality of outflow openings, a plurality of above-mentioned the 1st, the 2nd supply holes, the attachment hole of a plurality of above-mentioned inflow entrances and a plurality of above-mentioned the 1st, the 2nd drivers are respectively uniformly-spaced to dispose in a circumferential direction.
The 17th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, that can be free to slide, be provided with at the 2nd valve rod that is free to slide of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod slip optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that slip by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, the above-mentioned high pressure that a plurality of above-mentioned inflow entrances that are provided with on above-mentioned the 1st valve rod is set respectively and optionally freely is connected with these inflow entrances is with port and above-mentioned low pressure port, and a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure are with port and a plurality of above-mentioned low pressure with port respectively with configuration uniformly-spaced in a circumferential direction.
The 18th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, that can be free to slide, be provided with at the 2nd valve rod that is free to slide of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod slip optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, with inflow entrance on being arranged on the 2nd valve rod freely be connected the 1st, in the position control valve of the attachment hole of the 2nd driver, above-mentioned the 1st hollow chamber that a plurality of and above-mentioned the 2nd valve rod is set respectively be communicated with the above-mentioned outflow opening that is provided with and optionally with these outflow openings freely be connected the above-mentioned the 1st, the 2nd supply hole and with above-mentioned the 2nd hollow chamber be communicated with the above-mentioned inflow entrance that is provided with and optionally with these inflow entrances freely be connected the above-mentioned the 1st, the attachment hole of the 2nd driver, and a plurality of above-mentioned outflow openings, the a plurality of the above-mentioned the 1st, the 2nd supply hole, a plurality of above-mentioned inflow entrances and a plurality of the above-mentioned the 1st, the attachment hole of the 2nd driver is respectively uniformly-spaced to dispose in a circumferential direction.
The 19th scheme of position control valve of the present invention, it is characterized in that: in the sleeve in embedding is fixed on valve casing, be provided with when possessing the 1st valve rod hollow chamber, that can be free to slide, be provided with at the 2nd valve rod that is free to slide of axially dividing and possess the 1st hollow chamber and the 2nd hollow chamber; Above-mentioned sleeve be provided with by above-mentioned the 1st valve rod slip optionally with the 1st valve rod on the high pressure that freely is connected of the inflow entrance that is provided with port and low pressure the time with port, above-mentioned sleeve is provided with the tap hole that often is in coupled condition on above-mentioned the 1st valve rod with the outflow opening that is provided with, and the ostium that will be connected with above-mentioned tap hole often is in the inflow entrance of coupled condition and is arranged to be communicated with the 1st hollow chamber of above-mentioned the 2nd valve rod; The slip that above-mentioned sleeve is provided with by above-mentioned the 2nd valve rod optionally is communicated with the 1st, the 2nd supply hole that the outflow opening that is provided with freely is connected with the 1st hollow chamber of above-mentioned the 2nd valve rod; The exhaust port that will often be in coupled condition with the drainage port on being arranged on above-mentioned sleeve is arranged to be communicated with the 2nd hollow chamber of above-mentioned the 2nd valve rod; Above-mentioned sleeve is provided with that slip by above-mentioned the 2nd valve rod is communicated with above-mentioned the 2nd hollow chamber, in the position control valve of the attachment hole of the 1st, the 2nd driver that freely is connected with inflow entrance on being arranged on the 2nd valve rod, be provided with respectively and a plurality ofly be arranged on above-mentioned inflow entrance and the above-mentioned high pressure that optionally freely is connected with these inflow entrances on the 1st valve rod with port and low pressure port, and a plurality of above-mentioned inflow entrances, a plurality of above-mentioned high pressure are with port and a plurality of above-mentioned low pressure with port respectively with configuration uniformly-spaced in a circumferential direction; The above-mentioned inflow entrance that above-mentioned the 1st hollow chamber that is respectively arranged with a plurality of and above-mentioned the 2nd valve rod is communicated with the above-mentioned outflow opening that is provided with and above-mentioned the 1st, the 2nd supply hole that optionally freely is connected with these outflow openings and is connected setting with above-mentioned the 2nd hollow chamber reaches optionally the attachment hole of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances; And a plurality of outflow openings, a plurality of above-mentioned the 1st, the 2nd supply holes, the attachment hole of a plurality of above-mentioned inflow entrances and a plurality of above-mentioned the 1st, the 2nd drivers are respectively uniformly-spaced to dispose in a circumferential direction.
The 20th scheme of position control valve of the present invention is in above-mentioned 8-19 scheme any one, it is characterized in that: when the output shaft that is used to drive the 1st driver of above-mentioned the 1st valve rod directly is connected setting with above-mentioned the 1st valve rod, be used to drive the output shaft and the structure of above-mentioned the 2nd valve rod of the 2nd driver of above-mentioned the 2nd valve rod for directly connecting.
The 21st scheme of position control valve of the present invention is that it is characterized in that: the fluid passage that is used to be connected a plurality of fluid bore that form on the above-mentioned valve casing and above-mentioned each port that forms on above-mentioned sleeve is formed at the outer circumferential face of above-mentioned sleeve in above-mentioned 8-19 scheme any one.
The 22nd scheme of position control valve of the present invention is in above-mentioned the 21st scheme, it is characterized in that: near the sectional area ratio that make the joint with above-mentioned fluid bore above-mentioned fluid passage is bigger from the sectional area that above-mentioned discharge orifice leaves part.
The 23rd scheme of position control valve of the present invention is in above-mentioned the 21st scheme, it is characterized in that: being arranged on above-mentioned outflow opening on the above-mentioned valve rod and at least one side of above-mentioned inflow entrance is the hole that has the shape of parallel portion in both sides; The above-mentioned supply port or the above-mentioned discharge port that are arranged on the above-mentioned sleeve are the holes with Qu Yuan.
The 24th scheme of position control valve of the present invention is in above-mentioned the 21st scheme, it is characterized in that: the gap between the outer circumferential face of above-mentioned valve rod and the inner peripheral surface of above-mentioned sleeve is 8 μ m-30 μ m.
Description of drawings
Fig. 1 is the cross sectional illustration figure of the position control valve of the embodiment of the invention.
Fig. 2 is the cross sectional illustration figure along the II-II line of Fig. 1.
Fig. 3 A is that expression is arranged on the supply side exhaust port and the cross sectional illustration figure that is arranged on the relation of the supply port on the sleeve on the valve rod.
Fig. 3 B is the explanatory drawing of the shape of the expression opening portion of supplying with port.
Fig. 4 A and Fig. 4 B are the plotted curve of expression leakage rate with the measurement result of gap variation.
Fig. 5 is the cross sectional illustration figure of the position control valve when valve rod being set it can be free to slide.
Fig. 6 is that expression has embodiment's the explanatory drawing of position control valve that high and low pressure switches the valve rod of usefulness.
Fig. 7 is embodiment's the cross sectional illustration figure of the part of expression change position control valve shown in Figure 6.
Fig. 8 is embodiment's the cross sectional illustration figure of the part of expression change position control valve shown in Figure 6.
Fig. 9 is embodiment's the cross sectional illustration figure of the part of expression change position control valve shown in Figure 6.
Figure 10 is that expression is when being applied to position control valve shown in Figure 1 with position control valve shown in Figure 6
Embodiment's cross sectional illustration figure.
The specific embodiment mode
With reference to Fig. 1, the position control valve 1 of the embodiment of the invention has the valve casing 3 of tubular, and sleeve 5 snugly is contained in it is not leaked.Above-mentioned valve casing 3 is provided with a plurality of fluid bore.Promptly, be provided with as above-mentioned fluid bore, for example: the P port 9 that is connected with oil pressure pump equal pressure source 7, be used for that appropriate driving device such as oil hydraulic cylinder 11 are supplied with two of working fluids and supply with port 13A, 13B, discharge two of working fluids from above-mentioned drive unit 11 and discharge port 15A, 15B and make working fluid flow out to the T port one 7 of jar T etc.
In addition, supply with port 13A for one and be connected to the 1st Room 11A as the cylinder 11 of drive unit by runner L1, another supplies with port 13B is connected to above-mentioned cylinder 11 by runner L2 the 2nd Room 11B.In addition, discharge port 15A for one and be connected to above-mentioned the 1st Room 11A by runner L3, another is discharged port 15B and is connected to above-mentioned the 2nd Room 11B by runner L4.
Forming on the outer circumferential face of above-mentioned sleeve 5 and the above-mentioned P port 9 that is arranged on the above-mentioned valve casing 3, supply with port 13A, 13B, discharge port 15A, 15B and T port correspondence, sectional shape is that semicircular, as to have certain depth all grooves 19,21,23,25,27 and 29 are as the fluid passage; In the outside of each all groove, form along with away from the circumferential groove 19A (with reference to Fig. 2) that successively decreases as above-mentioned each port 9,13A, 13B, 15A and the 15B degree of depth of fluid bore, 21A, 23A, 25A, 27A, 29A.
That is, each fluid passage that comprises all grooves and circumferential groove with the joint of above-mentioned fluid bore near basal area do greatlyyer than the basal area of having left the fluid bore part.Therefore, fluid successfully carries out to the direction energy of flow of leaving as the position of above-mentioned each port of fluid bore.
On the corresponding position of above-mentioned sleeve 5 and above-mentioned all groove 19, be provided with the P port 31 (with reference to Fig. 2) of a plurality of radiation directions (radially), these P ports 31 are communicated with above-mentioned all grooves 19 and the inner space 32 that is arranged in the sleeve 5, form the internal circle groove 33 (with reference to Fig. 1) as the certain width of chamber in this inner space 32.Above-mentioned a plurality of P port 31 is uniformly-spaced to be configured in circumferencial direction.
Above-mentioned all grooves 21,23 are by being communicated with above-mentioned inner space 32 with respectively supply with port 35A, 35B set on the circumferencial direction that uniformly-spaced is configured in sleeve 5.In addition, on the position that above-mentioned supply port 35A is on the throne mutually different with supplying with the suitable configuration in port 35B position deflection ground.
Above-mentioned supply port 35A, 35B and above-mentioned P port 31 are similarly with the axis normal of sleeve 5 and for being the circular hole at center with the straight line by above-mentioned axis; In addition, as shown in Figure 3A, also can be with the axis normal of sleeve 5 be the circular hole at center by the straight line parallel of axis and with the straight line that radially departs from this straight line a little at sleeve 5.When departing from like this position of supplying with port 35A, 35B a little, the opening portion 36 of supplying with port 35A, 35B just becomes shown in Fig. 3 B semi-circular portion 36A and substantially elliptical part (tongue-shaped member) 36B roughly egg-shape altogether roughly.
In addition, above-mentioned supply port 35A, 35B wish that its periphery has the hole of Qu Yuan, if consider that hope such as processing is circular hole, but also circular hole not necessarily.
Above-mentioned all grooves 25,27 are by being communicated with above-mentioned inner space 32 with circumferential set respectively discharge port 37A, the 37B that uniformly-spaced is configured in sleeve 5.
Above-mentioned discharge port 37A is configured in identical bits position mutually with above-mentioned supply port 35B, discharges port 37B and is configured in identical bits position mutually with supply port 35A.
Above-mentioned all grooves 29 are by being communicated with above-mentioned inner space 32 with the circumferential set a plurality of T ports 39 that uniformly-spaced are configured in sleeve 5.
The inner space 32 of above-mentioned sleeve 5 makes the valve rod matching hole that valve rod 41 cooperates free to rotately, and makes perforation entire sleeve 5.On the valve rod 41 in embedding above-mentioned valve rod matching hole, axially forming the 1st hollow chamber 43 and the 2nd hollow chamber 45 that separates, the end of each hollow chamber 43,45 is respectively by closeouts 47,49 sealings.
The 1st hollow chamber 43 of above-mentioned valve rod 41 is by being connected with above-mentioned P port 31 with the circumferential set a plurality of supply side inflow entrances 51 that uniformly-spaced are configured in valve rod 41.
Above-mentioned supply flow measurement inlet 51 connects formation in the diametric(al) of valve rod 41, forms circumferential groove 41G accordingly with this supply side inflow entrance 51 on the outer circumferential face of valve rod 41.Therefore, whether the 1st hollow chamber 43 of valve rod 41 and 31 valve rods of P port 41 rotate the state that all is in frequent connection.
In addition, a plurality of supply side outflow openings 53 of the 1st hollow chamber 43 and the above-mentioned coupled condition of respectively supplying with port 35A, 35B that can freely switch are arranged uniformly-spaced to be formed at the circumferencial direction of valve rod 41 on above-mentioned valve rod 41.That is, as shown in Figure 1, its structure is that when valve rod 41 was in the neutral position, each was supplied with port 35A, 35B and is in blocking state with being communicated with of supply side outflow opening 53; When making valve rod 41 when arrow A direction (postive direction) shown in Figure 1 is rotated, above-mentioned supply port 35A is communicated with supply side outflow opening 53, and when arrow B direction (in the other direction) was rotated, above-mentioned supply port 35B was communicated with supply side outflow opening 53.
In addition, in Fig. 1,, also can make continuous structure though on the length direction of valve rod 41, be provided with several supply side outflow openings 53; In addition, supply with port 35A, 35B does not have position deflection when each on the length direction of sleeve 5, and when just making the structure of phase migration, above-mentioned supply side outflow opening 53 just needn't be provided with several on the length direction of valve rod 41.
Above-mentioned supply side outflow opening 53, when it was blocked with being connected of supply port 35A, 35B, for making its straight section be in the crosscut state with respect to the Qu Yuan of above-mentioned supply port 35A, 35B, as shown in Figure 1, wish that it is to have the hole of the square shape of parallel portion in the both sides of the sense of rotation of valve rod 41, but also can be the parallel slotted hole in both sides.
Have again, can freely switch a plurality of discharge effluents inlets 55 above-mentioned the 2nd hollow chamber 45 and above-mentioned coupled condition of respectively discharging port 37A, 37B, substantially the same with above-mentioned supply side outflow opening 53 shapes with the position on the circumferencial direction that uniformly-spaced is formed at valve rod 41 having on the valve rod 41.Promptly, its structure is, when valve rod 41 is in the neutral position, each is discharged port 37A, 37B and is in blocking state with being communicated with of discharge effluent inlet 55, when valve rod 41 when arrow A direction (postive direction) is rotated, discharge port 37B and discharge effluent inlet 55 and is connected, when arrow B direction (in the other direction) was rotated, discharge port 37A and discharge effluent entered the mouth and 55 are connected.
In addition on valve rod 41, also have no matter whether valve rod 41 rotates all often to keep a plurality of discharge effluents of the state that above-mentioned the 2nd hollow chamber 45 is connected with above-mentioned T port 39 to export 57 with the position on the circumferencial direction that uniformly-spaced is formed at valve rod 41.Therefore, the 2nd hollow chamber 45 often is in and is connected and state with a jar T, promptly is in the state that opens wide to the outside.
As already explained, flow in the 1st hollow chamber 43 from chamber (internal circle groove) 33 of an end of the inner space 32 of working fluid through being formed at sleeve 5 of pressure source 7 supply side inflow entrance 51 from valve rod 41, but the part of working fluid enters the micro-gap between the outer circumferential face of the inner peripheral surface of inner space 32 of sleeve 5 and valve rod 41, in the performance lubrication, fluid pressure action in the chamber 33 is in the axial direction of valve rod 41, the state that also has the self-alignment function so that the axis of the inner space 32 of the axis of valve rod 41 and sleeve 5 is consistent.
The other end in above-mentioned inner space 32 is formed with the chamber 59 same with above-mentioned chamber 33, and this chamber 59 is connected with above-mentioned chamber 33 by the bypass 61 that is arranged on valve casing 3, the sleeve 5.Therefore, the part of working fluid imports above-mentioned chamber 59 by bypass 61, and the pressure that utilizes the working fluid in this chamber 59 plays and above-mentioned same self centering effect when being lubricated between valve rod 41 and the sleeve 5.
In addition, the discharge passage 63 of working fluid through being formed at both sides that enters in the micro-gap of inner peripheral surface of inner space 32 of valve rod 41 and sleeve 5 is recovered among jar T.
On an end face of above-mentioned sleeve 5 cover 65 is installed, carriage 67 is installed in the other end, valve rod 41 is restricted in axial slip.And, on above-mentioned carriage 67, being equipped with as the control motor 69 as appropriate driving device such as stepper motor, actuating motor, the running shaft 71 of this control motor 69 links into an integrated entity by connection set 73 and above-mentioned valve rod 41.Therefore, rotate then above-mentioned valve rod 41 rotations of may command by controlling above-mentioned control motor 69.In addition, also above-mentioned running shaft 71 directly can be connected with valve rod 41.
In said structure, when 69 rotations of control control motor make valve rod 41 along the arrow A direction rotation of Fig. 1, as mentioned above, the 1st hollow chamber 43 of valve rod 41 is passed through supply side exhaust port 53 and is connected with supply port 35A, and the 2nd hollow chamber 45 is connected with discharge port 37B by discharging effluent inlet 55.
Therefore, the working fluid from pressure source flows in the 1st hollow chamber 43 of valve rod 41 through P port 9, all grooves 19, P port 31, supply side inflow entrance 51; And in the 1st Room 11A of supply side outflow opening 53, supply port 35A, runner L1 inflow cylinder 11.And, working fluid in the 2nd Room 11B of above-mentioned cylinder 11 through runner L4, discharge port 15B, all grooves 27, discharge port 37B and discharge effluent inlet 55 and flow in the 2nd hollow chamber 45 of valve rods 41, be discharged among jar T through discharging effluent outlet 57, T port 39, all grooves 29 and T port one 7 then.
Therefore, the piston P of cylinder 11 moves downwards in Fig. 1.At this moment, control the speed of the clockwise and anticlockwise of motor 69 with the clockwise and anticlockwise of control valve rod 41 by suitable control, the contact ratio of may command above-mentioned supply port 35A and supply side outflow opening 53 then, promptly supply with the opening degree of port 35A, thereby may command is to the flow of the working fluid of the 1st Room 11A of above-mentioned cylinder 11 inflow, and can control the operating rate of above-mentioned piston P, by above-mentioned opening degree being adjusted to zero, then above-mentioned piston P can be stopped at desired position.
As mentioned above, rotation valve rod 41 will be supplied with port 35A and be connected with supply side discharge port 53, and will discharge port 37B and discharge effluent inlet 55 and is connected with control supply port 35A, when discharging the opening degree of port 37B, because above-mentioned supply port 35A, discharging port 37B is the hole with Qu Yuan, circular hole for example, and supply side exhaust port 53 and discharge effluent inlet 55 are the holes that have the shape of parallel portion in both sides, the hole of square shape for example, thereby by the opening speed that rotation determined of valve rod 41 and relation and each port 35A of opening degree, situation difference when 37B is four jiaos of holes, the proportionate relationship that does not form straight line changes and be quadratic curve formula ground.
That is,, can not carry out the control of linear type ground to flow, and can carry out flow control with quadratic curve formula ground even for example under the situation that valve rod 41 rotates with constant speed.
Moreover, shown in Fig. 3 B, the opening portion 36 of supplying with port 35A is with semi-circular portion 36A roughly with roughly under the situation of half elliptic part (ligule part) 36B roughly egg-shape altogether, and the rotational velocity of valve rod 41 and the pass of supplying with the opening degree of port 35A tie up to the initial stage of opening action and all variations smoothly at leisure in latter stage of closing motion.
Therefore, the initial stage of the opening action when making valve rod 41 clockwise and anticlockwise, switch supply with port 35A, discharge port 37B and the latter stage of closing motion, the curve of similar sinusoidal rising part changes like that all to make the variation of opening degree for example be, rather than changes so that realize opening action, closing motion at leisure sharp.
Therefore, even make valve rod 41 clockwise and anticlockwise with higher speed to supply with port 35A, when discharging the switch of port 37B, also can control the generation of water hammer at an easy rate.
With above-mentioned opposite, when utilizing control motor 69 to make valve rod 41 when the arrow B direction is rotated, as mentioned above, because when supply side exhaust port 53 is connected with supply port 35B, discharging effluent inlet 55 is connected with discharge port 37A, working fluid flows to the 2nd Room 11B of above-mentioned cylinder 11, can discharge working fluid from the 1st Room 11A, thereby piston P is risen.At this moment, also can also can make piston P stop at desired position with the operating rate of the above-mentioned P of control piston similarly.
As already explained, position control valve 1 certain positive and negative switching that transfers the runner that carries out working fluid by valve rod 41, but it also in desired slewing area positive and negative the transferring by suitable control valve rod 41 carry out flow control, promptly it has position control valve and two kinds of functions of flow control valve.
As mentioned above, when making valve rod 41 be rotatably connected the 1st hollow chamber 43 and supply port 35A or 35B, because supplying with port 35A and 35B forms on the circumferencial direction with the inner space 32 that uniformly-spaced is configured in sleeve 5 respectively, and, the supply side exhaust port 53 that is arranged on the valve rod 41 also is formed at symmetrical position or the equally spaced position of circumferencial direction, thereby for example when connecting supply port 35A and supply side exhaust port 53, the opening degree of the supply side exhaust port 53 of many places, supply port 35A equates.
And, the inner peripheral surface of the valve rod matching hole of above-mentioned sleeve 5, and the micro-gap between the outer circumferential face of valve rod 41 is made 8 μ m-30 μ m, from be arranged on circumferencial direction uniformly-spaced the part of the supply port 35A of the position part that enters the working fluid of above-mentioned micro-gap flow at circumferencial direction along the outer circumferential face of above-mentioned valve rod 41, the neutral position of supplying with port 35A is zero to the flow velocity of circumferencial direction at each, thereby produce the effect of valve rod 41 to axis direction (interior side direction radially) pushing, in this part, also can play self centering effect, be zero by the flow velocity that makes circumferencial direction simultaneously, also can suppress leakage rate.That is, valve rod 41 is in the state by the film support of the working fluid that enters above-mentioned micro-gap, thereby can work swimmingly.
In addition, as mentioned above, because the part of above-mentioned chamber 59 also plays self centering effect, thereby can keep the axis of the relative sleeve 5 of axis of valve rod 41 consistent and do not tilt, thereby can keep the posture of valve rod 41 with highi degree of accuracy, and can rotate swimmingly with minimum surface friction drag.In addition, even valve rod 41 is under the situation of doing integral diameter bigger for the increase capacity, also can increase the diameter of the 1st, the 2nd hollow chamber 43,45 as much as possible, can do thin, the lightweight structure of wall-forming, thereby can make valve rod 41 have good responsiveness, more promptly switch.
Yet the position control valve 1 of said structure is carrying out separately being made through assembling after the machining to valve casing 3, sleeve 5 and valve rod 41 respectively again.Herein, because the fluid passage that is connected with each port is to form all grooves on the circumferential surface of sleeve 5, thereby can be processed into the curved surface of the slyness that does not produce overlap in the attachment portion of above-mentioned each port and above-mentioned fluid passage, can reduce the drag losses of flowing process fluid in the fluid passage.
In addition, as the micro-gap between the outer circumferential face of the inner peripheral surface of the above-mentioned inner space 32 of the valve rod matching hole of sleeve 5 and valve rod 41 is 8 μ m-30 μ m, because of doing greatlyyer, the assembling ratio of 41 pairs of above-mentioned sleeves 5 of valve rod is easier to, simultaneously, the foul about 5-15 μ m can not produce obstruction yet even for example exist in working fluid.
In addition, in the present embodiment, situation about being connected with fluid passage on the outer peripheral surface that is formed at sleeve 5 for each port as shown in this embodiment, for example to form complicated fluid passage, by all being formed on the outer circumferential face of sleeve 5 with the fluid passage of the circumferencial direction of sleeve 5 with parallel axes or crisscross fluid passage, even under the situation of the different fluid passage intersection of directivity, also this cross section can be processed into slick and sly curved surface, thereby can reduce drag losses.
Have again, be formed at fluid passage on the outer circumferential face of sleeve 5 by will doing than to leave the sectional area of part bigger from being formed at fluid bore on the valve casing 3, thereby the resistance that then can reduce from above-mentioned fluid bore to the runner between each port that is formed on the sleeve 5 suppresses drag losses with the sectional area of above-mentioned fluid bore attachment portion.
Yet, when the micro-gap between the outer circumferential face of the inner peripheral surface of setting above-mentioned sleeve 5 and above-mentioned valve rod 41 is suitable value, in structure as shown in Figure 1, valve rod 41 is remained on neutral position (position of state as shown in Figure 1), when above-mentioned micro-gap (clearance) is set at 10 μ m, 25 μ m and 50 μ m respectively, measure the pressure of working fluid and during from the leakage rate of above-mentioned micro-gap (what leaked in per 1 minute rises number: represent with L/min), can obtain the measurement result shown in Fig. 4 A.
As indicated in the above-mentioned measurement result, the maximum leakage amount was respectively 0.4L/min, 2.6L/min when the gap was 10 μ m, 25 μ m; Maximum leakage amount when the gap is 50 μ m is 206L/min; Leakage rate when the gap is 50 μ m is excessive, when the desired value with leakage rate is decided to be 3L/min, can think that then the gap of allowing is than the big slightly gap of 25 μ m.Therefore, above-mentioned gap can think that its lower limit is the gap of existing general position control valve, and CLV ceiling limit value is about about 30 μ m.
In addition, for the purpose of prudent, use 34 logical valves of existing general structure, this valve is at the both sides of the P port that is connected with pressure source configuration A port, B port, seal above-mentioned P port with shoulder portion at the valve rod that axially is free to slide, and by the above-mentioned P port of being slidingly connected of valve rod and A port or B port; And during the leakage rate when under the identical situation of various conditions such as same valve column diameter, identical working fluid, uniform temp, measuring the gap and being respectively 10 μ m, 25 μ m and 50 μ m, obtain the result shown in Fig. 4 B.
Promptly, maximum leakage amount when the gap is 10 μ m, 25 μ m and 50 μ m is respectively 3.3L/min, 23.4L/min and 188L/min, if desired value is set at about 3L/min, then the gap is that 10 μ m are too big, can confirm that the gap must be below 10 μ m (for example 8 μ m).
Fig. 5 is the second embodiment of the present invention, in this embodiment, as the Linear actuator of control motor 69A employing as linear electric machine, and is that valve rod 41 is arranged in the structure that axially is free to slide.As mentioned above, by valve rod 41 is made in the structure that axially is free to slide, be arranged on P port 31 on the sleeve 5, supply with port 35A, 35B, discharge port 37A, 37B and T port 39 and be arranged on supply side inflow entrance 51 on the valve rod 41, supply with the relation of surveying exhaust port 53, discharge effluent inlet 55, discharging effluent outlet 57 and all just change valve rod 41 in the position of glide direction relation; In addition owing to only change slightly with the annexation of driver 11, so for giving identical label with structure division that valve rod 41 rotates the said structure performance said function of occasions, and omit its detailed description.
By as above explanation as can be known, adopt the present invention, can easily realize reducing the weight of valve rod, simultaneously, can easily in being arranged at the inner space of sleeve, keep the axis of this inner space and the consistent state of axis of valve rod, can the brisk switch motion that promptly carries out valve rod, can improve the responsiveness when utilizing control motor driving valve rod.
In addition, the resistance that also can suppress to be formed at the fluid passage in the control valve to be reducing drag losses, thereby can suppress the heating of control valve itself.
Fig. 6 relates to the position control valve of the third embodiment of the present invention, and this position control valve 81 is made and can freely be switched the structure of using pressure source 83B as the high pressure of pressure source with pressure source 83A and low pressure.This position control valve 81 has the tubular valve casing 85 identical with above-mentioned valve casing 3, is embedded in and is fixed with the sleeve 87 identical with above-mentioned sleeve 5 at this valve casing 85.
The 1st valve rod 91 cylindraceous with hollow chamber 89 also is mated freely to rotate axially being divided into the 1st hollow chamber 93 and the 2nd hollow chamber 95 and having the 2nd valve rod 97 cylindraceous freely to rotate movingly when above-mentioned sleeve 87 connects in the valve rod matching hole 87H that is provided with.
The hollow chamber 89 of above-mentioned the 1st valve rod 91 is the one side closed structure of front end, and above-mentioned hollow chamber 89 is utilized closeouts 99 sealings of base end part one side that is installed in the 1st valve rod 91.And, in order to make above-mentioned the 1st valve rod 91 rotation works, the 1st control motor 103 of the suitable driving mechanism of actuating motor or stepper motor etc. and so on is installed by electric machine support 101 at an end of above-mentioned sleeve 87, directly is connected with above-mentioned closeouts 99 as the rotatingshaft 103S of the output shaft of above-mentioned the 1st control motor 103.
That is, the rotatingshaft 103S of the 1st control motor 103 is not by connection set and the 1st valve rod 91 direct-connected structures such as connectors.Therefore, can alleviate weight, can make the speed of response of rotation etc. of the 1st valve rod 91 higher with the 1st control motor 103 drive parts.
Fore-end at above-mentioned the 2nd valve rod 97 is equipped with the closeouts 105 that is used to seal above-mentioned the 1st hollow chamber 93, at the cardinal extremity of the 2nd valve rod 97 closeouts 107 that is used to seal the 2nd hollow chamber 95 is installed partly.And, in order to make above-mentioned the 2nd valve rod 97 rotation works, be installed with and same the 2nd control motor 111 of above-mentioned the 1st control motor 103 by electric machine support 109 at the other end of above-mentioned sleeve 87, directly be connected with above-mentioned closeouts 107 as the rotatingshaft 111S of the output shaft of the 2nd control motor 111 as driving mechanism.
That is, the output shaft of the 2nd control motor 111 directly is connected with the 2nd valve body 97, and is same with the 1st valve body 91, can make the speed of response of the rotation etc. of the 2nd valve body 97 reach more speed.
On above-mentioned valve casing 85, be provided be connected to above-mentioned high pressure with the high pressure of pressure source 83A with in the inflow entrance 113, also be provided be connected to above-mentioned low pressure with the low pressure of pressure source 83B with inflow entrance 115.In addition, on above-mentioned valve casing 85, be provided with in the 1st, the 2nd supplying mouth 117A, the 117B, the 1st, the 2nd exhaust port 119A, 119B are set.Also on valve casing 85, be provided with and be connected in the T port one 21 of jar T, a plurality of drainage port 122 are set.
Above-mentioned the 1st supplying mouth 117A through runner L5 be connected with the 1st Room 11A of driver 11, the 2nd supplying mouth 117B is connected with the 2nd Room 11B of above-mentioned driver 11 through runner L6.In addition, above-mentioned the 1st exhaust port 119A is connected with above-mentioned the 1st Room 11A through runner L7, and the 2nd exhaust port 119B is connected with above-mentioned the 2nd Room 11B through runner L8.
On the outer circumferential face of above-mentioned sleeve 87, form respectively and above-mentioned high pressure inflow entrance 113 as the fluid passage, low pressure inflow entrance 115,1st, the 2nd supplying mouth 117A, 117B, the 1st, the 2nd exhaust port 119A, 119B and T port correspondence, sectional shape is semicircular, as to have certain depth all grooves 123,125,127,129,131,133,135; In the outside of each fluid passage according to above-mentioned high pressure with inflow entrance 113, low pressure inflow entrance 115,1st, the 2nd supplying mouth 117A, 117B, the order that the 1st, the 2nd exhaust port 119A, 119B and T port one 21 leave forms circumferential groove 123A, 125A, 127A, 129A, 131A, 133A, the 135A that its degree of depth shoals gradually respectively.
On above-mentioned sleeve 87, with uniformly-spaced when circumferencial direction disposes the high pressure usefulness port one 37 of above-mentioned all grooves 123 of a plurality of connections and valve rod matching hole 87H, also uniformly-spaced to dispose the low pressure port one 39 of above-mentioned all grooves 125 of a plurality of connections and valve rod matching hole 87H at circumferencial direction.Above-mentioned a plurality of high pressure disposes on the throne mutually different position with low pressure with port one 39 with port one 37.
And, corresponding with above-mentioned high pressure with port one 37, on above-mentioned the 1st valve rod 91 uniformly-spaced to enter the mouth in 141 at a plurality of high-pressure sprays that circumferencial direction configuration is communicated with above-mentioned hollow chamber 89, corresponding with above-mentioned low pressure with port one 39, dispose a plurality of lowpressure streams inlets 143 with circumferencial direction uniformly-spaced at above-mentioned the 1st valve rod 91.And then on the 1st valve rod 91 also uniformly-spaced disposing a plurality of outflow openings 145 in a circumferential direction, form internal circle groove 146 on the inner peripheral surface of corresponding valve rod matching hole 87H at above-mentioned sleeve 87 with this outflow opening 145.
Therefore, when suitably controlling motor 103 and making 91 clockwise and anticlockwise of the 1st valve rod, high pressure can enter the mouth with high-pressure spray with port one 37 and 141 be connected, or low pressure can enter the mouth with lowpressure stream with port one 39 and 143 is connected.That is, rotate, optionally connect hollow chamber 89 and high pressure the pressure source 83A or the low pressure pressure source 83B of the 1st valve rod 91 by controlling the 1st control motor 103.
On above-mentioned sleeve 87, with uniformly-spaced when circumferencial direction is provided with a plurality of the 1st tap hole 147A that are communicated with above-mentioned all grooves 127 and above-mentioned valve rod matching hole 87H, uniformly-spaced a plurality of the 2nd tap hole 147B that are communicated with above-mentioned all grooves 129 and above-mentioned valve rod matching hole 87H to be set at circumferencial direction.The position phase configuration of these the 1st, the 2nd tap hole 147A, 147B gets different.
In addition, on above-mentioned sleeve 87, with uniformly-spaced when the circumferencial direction configuration is communicated with a plurality of the 1st ostium 149A of above-mentioned all grooves 131 and valve rod matching hole 87H, uniformly-spaced to be communicated with a plurality of the 2nd ostium 149B of above-mentioned all grooves 133 and above-mentioned valve rod matching hole 87H in the circumferencial direction configuration.The position phase configuration of these the 1st, the 2nd ostium 149A, 149B gets different.
In addition, above-mentioned the 1st tap hole 147A is configured in same position mutually with the 2nd inflow entrance 149B, and the 2nd tap hole 147B is configured in same position mutually with the 1st inflow entrance 149A.
Have again, on above-mentioned sleeve 87,, a plurality of leak port 153 are set with uniformly-spaced when circumferencial direction is provided with a plurality of drainage port 151 that are communicated with above-mentioned all grooves 135 and above-mentioned valve rod matching hole 87H.
On above-mentioned the 2nd valve rod 97, uniformly-spaced a plurality of inflow entrances 155 that are communicated with outer circumferential face and above-mentioned the 1st hollow chamber 93 to be set at circumferencial direction.Be communicated with above-mentioned internal circle groove 146 with these inflow entrance 155 runners 159 corresponding, that pass through on above-mentioned sleeve 87, to form at the internal circle groove 157 that forms on the inner peripheral surface of above-mentioned valve rod matching hole 87H.
Corresponding with above-mentioned the 1st, the 2nd outflow opening 147A, 147B, be arranged on the 2nd valve rod 97 with a plurality of the 1st, the 2nd outflow opening 161A, the 161B that are communicated with above-mentioned the 1st hollow chamber 93 that uniformly-spaced is configured in circumferencial direction respectively.Have again, corresponding on above-mentioned the 2nd valve rod 97 with above-mentioned the 1st, the 2nd inflow entrance 149A, 149B, respectively with uniformly-spaced in a plurality of the 1st, the 2nd inflow entrance 163A, 163B that the circumferencial direction setting is communicated with the 2nd hollow chamber 95, corresponding with above-mentioned drainage port 151 uniformly-spaced to be configured in a plurality of exhaust ports 165 that the circumferencial direction setting is communicated with the 2nd hollow chamber 95.This exhaust port 165 is made at the long slotted hole of the circumferencial direction of the 2nd valve rod 97, thereby irrespectively often is in the state that is connected with above-mentioned drainage port 151 with the rotation of the 2nd valve rod 97.
Adopt said structure, when utilizing above-mentioned the 2nd control motor 111 suitably to control the clockwise and anticlockwise of the 2nd valve rod 97, the 1st outflow opening 161A of the 1st hollow chamber 93 can be connected with the 1st tap hole 147A, or the 2nd outflow opening 161B can be connected with the 2nd tap hole 147B.
As mentioned above, its structure is for when the 1st outflow opening 161A is connected with the 1st tap hole 147A, the 2nd inflow entrance 163B of the 2nd hollow chamber 95 of the 2nd valve rod 97 is connected with the 2nd ostium 149B, and when the 2nd outflow opening 161B the 2nd tap hole 147B connected, the 1st inflow entrance 163A was connected with the 1st ostium 149A.
In this position control valve 81, identical with the structure of above-mentioned position control valve 1, the micro-gap (clearance) of the inner peripheral surface and the 1st of the valve rod matching hole 87H of sleeve 87, the outer circumferential face of the 2nd valve rod 91,97 is 8 μ m-30 μ m.And the high pressure that is arranged on the sleeve 87 forms hole, for example circular hole with Qu Yuan with port one 37, low pressure with port one 39; The high-pressure spray inlet 141, the lowpressure stream inlet 143 that are arranged on the 1st valve rod 91 are formed on the hole that both sides have the shape of parallel portion, for example 4 dihedral holes.
Have, the 1st, the 2nd tap hole 147A, the 147B and the 1st, the 2nd ostium 149A, the 149B that are arranged on the sleeve 87 form hole, for example circular hole with Qu Yuan again; Being arranged on the 1st, the 2nd outflow opening 161A, 161B and the 1st, the 2nd inflow entrance 163A, 163B on the 2nd valve rod 97 forms both sides respectively and has the hole of the shape of parallel portion, 4 dihedral holes for example.
Therefore, when 91 rotations of the 1st valve rod, high pressure were connected switch with port one 37 and high-pressure spray inlet 141 or low pressure with port one 39 and lowpressure stream inlet 143, above-mentioned high pressure used the curved formula of opening degree of port one 39 to change with port one 37 and low pressure.In addition, the 2nd valve rod 97 rotates, when the 1st tap hole 147A is connected with the 1st outflow opening 161A, the 2nd ostium 149B is connected with the 2nd inflow entrance 163B, when perhaps the 2nd tap hole 147B is connected with the 2nd outflow opening 161B, the 1st ostium 149A is connected with the 1st inflow entrance 163A and when opening and closing, the curved formula of the opening degree of above-mentioned the 1st, the 2nd tap hole 147A, 147B and the 1st, the 2nd ostium 149A, 149B changes.
In aforesaid structure, when the 1st valve rod 91 was connected with port one 37 and high-pressure spray inlet 141 by 103 rotations of the 1st control motor, high pressure, high pressure flowed in the hollow chamber 89 of the 1st valve rod 91 with the pressurized working fluid of pressure source 83A.In addition, when low pressure was connected with lowpressure stream inlet 143 with port one 39, low pressure just flowed in the above-mentioned hollow chamber 89 with the working fluid of the low pressure of pressure source 83B.
Then, the hollow chamber 89 interior working fluids that flow into the 1st valve rod 91 flow out from the outflow opening 145 that is arranged on the 1st valve rod 91, flow in the 1st hollow chamber 93 of the 2nd valve rod 97 from the inflow entrance 155 that is arranged on the 2nd valve rod 97 through internal circle groove 146, runner 159, internal circle groove 157.
Rotate when the 2nd control motor makes the 2nd valve rod 97, when the 1st tap hole 147A is connected with the 1st outflow opening 161A, the working fluids in above-mentioned the 1st hollow chamber 93 are in the 1st Room 11A of runner L5 inflow driver 11.Then, the working fluid in the 2nd Room 11B of above-mentioned driver 11 flows in the 2nd hollow chamber 95 of the 2nd valve rod 97 and through exhaust port 165, drainage port 151 through runner L8, the 2nd ostium 149B, the 2nd inflow entrance 163B and is discharged among jar T.
On the contrary, when the 2nd tap hole 147B is connected with the 2nd outflow opening 161B, working fluid in the 1st hollow chamber 93 of the 2nd valve rod 97 flow among the 2nd Room 11B of driver 11 through runner L6, working fluid in the 1st Room 11A of this driver 11 flow in the 2nd hollow chamber 95 through runner L7, the 1st ostium 149A, the 1st outflow opening 163A, and is discharged among jar T through exhaust port 165, drainage port 151.
Known to, in position control valve,, the supply source that driver 11 is supplied with working fluid can be switched to high pressure pressure source 83A or low pressure pressure source 83B by controlling the rotation of the 1st control motor 103.And, by controlling the rotation of the 2nd control motor 111, can switch when the 1st, the 2nd Room 11A, the 11B of driver 11 supplied with the direction of working fluid, the may command opening degree, thus carry out the flow control of the delivery volume of Control work fluid.
In addition, in position control valve 81, with above-mentioned position control valve 1 similarly by on the outer circumferential face of sleeve 87, forming all grooves 123 as the fluid passage, in the time of 135, has identical gap at the valve rod matching hole 87H that forms on the sleeve 87 with gap between the 1st, the 2nd valve rod 91,97, and, be arranged on that on the sleeve 87 each flows out, ostium is circular hole for example, each outflow, the inflow entrance that correspondingly are arranged on the 1st, the 2nd valve rod 91,97 form for example 4 dihedral holes, then can obtain same effect with above-mentioned position control valve 1.
In addition, in the above-mentioned position control valve 81,, above-mentioned chamber 59 can be set also though omitted the chamber 59 of above-mentioned position control valve 1.In addition, also can make high-pressure spray inlet 141 and lowpressure stream inlet 143 structures that are connected; Have again, also can make and in making the high pressure same plane vertical with port one 39, be configured to the mutually different structure in position with the axle center of sleeve 87 with port one 37 and low pressure.
In addition similarly, also can make the structure that connects the 1st, the 2nd outflow opening 161A, 161B and the 1st, the 2nd tap hole 147A, 147B are made the position and differently be configured in structure in the same plane mutually, and then similarly, also can make connection the 1st, the 2nd inflow entrance 163A, 163B, the 1st, the 2nd ostium 149A, 149B position phase differently are configured in the structure in the same plane.
Position control valve 81A shown in Figure 7 represents the embodiment of the structure that the part to the structure of position control valve shown in Figure 6 81 changes, and the structure division of performance same function is marked with identical label, and omits its repeat specification.
In this embodiment, the structure of the 2nd valve rod 97 is axially to be free to slide.Therefore, because the 2nd valve rod 97 is axially reciprocating, can adopt Linear actuator 111A to replace the 2nd control motor 111, and when the 2nd valve rod 97 is in the neutral position, then form the structure that the 1st, the 2nd tap hole 147A, 147B are positioned at the axial both sides of the outflow opening 161 that is arranged on the 1st hollow chamber 93; 1st, the 2nd inflow entrance 149A, 149B then are positioned at the structure of the axial both sides of the inflow entrance 163 that is arranged on the 2nd hollow chamber 95, and other structure is identical with above-mentioned position control valve 81.
Therefore, in this structure,, then can carry out the switching of high pressure, low pressure as mentioned above because the 1st valve rod 91 rotates; And since the 2nd valve rod 97 in axial to-and-fro motion, then changeable when driver is supplied with the direction of working fluid, also may command is supplied with the delivery volume of working fluid, thereby brings into play identical effect.
Position control valve 81B shown in Figure 8 is the embodiment of the 1st valve rod 91 of above-mentioned position control valve 81 in the structure that axially can be free to slide, adopt Linear Driving 103A to replace the 1st control motor 103, and when the 1st valve rod 91 is in the neutral position, then be positioned at the structure of the axial both sides of inflow entrance 141 with port one 39 with port one 37 and low pressure for high pressure; Because other structure is identical with the structure of above-mentioned position control valve 81, thereby the structure division of bringing into play said function is marked with identical label and omits the explanation of its repetition.
In this position control valve, can carry out the switching of high pressure, low pressure in axial to-and-fro motion by the 1st valve rod 91, all the position control valve 81 with above-mentioned is identical for other.
The structure of position control valve 81C shown in Figure 9 is that the 1st, the 2nd valve rod 91,97 of above-mentioned position control valve 81 all can axially be free to slide.Promptly, adopted the 1st, the 2nd valve rod 91,97 that can be free to slide in Fig. 7, the position control valve shown in Figure 8, because its structure is identical with above-mentioned position control valve 81A, 81B, thereby is marked with identical label and omits the explanation of its repetition for the structure division of bringing into play said function.
Figure 10 has been except having carried out the change the part of the structure of position control valve shown in Figure 6 81, and all the other adopt the structure with the position control valve 1A of position control valve shown in Figure 11 performance identical function.Promptly, position control valve shown in Figure 6 81 adopts is to make freely to switch high pressure with pressure source 83A and the low pressure two kinds of structures on pressure source 83A, the 83B that are connected to the structure of pressure source 83B, what in contrast, position control valve shown in Figure 11 adopted is the structure that is connected to a kind of pressure source 7.
Therefore, with valve casing 85, the sleeve 87 of position control valve 81 and the 2nd valve rod 97 former states use, make position control valve 1A with position control valve shown in Figure 11 performance said function with the 1st, the 2nd hollow chamber 93,95.
Promptly, among the position control valve 1A, unload the 1st valve rod 91, electric machine support 101 and the 1st control motor 103 of position control valve 81, by closely cooperating when sealing high pressure with port one 37 with fixing valve rod 201, utilize fixedly said fixing valve 201 of cover 203, be used for replacing above-mentioned the 1st valve rod 91.
And, be arranged in the hollow chamber 205 on the said fixing valve rod 201, when a plurality of inflow ports 207 that low pressure is communicated with port one 39 were communicated with hollow chamber 205, a plurality of outflow port 209 that are communicated with internal circle groove 146 also were communicated with it.
Therefore, the working fluid of pressure source 210 flow in the hollow chamber 205, and is in the state that often acts on the internal circle groove 157 from outflow port 209, internal circle groove 146 through runner 159 with port one 39, inflow port 207 through low pressure.Therefore, in this structure, because the runner 159 that is arranged on the sleeve 87 is in the state that often is being connected with pressure source P, thereby above-mentioned runner 159 just is equivalent to be communicated with the P port that the inflow entrance 155 that is provided with often is being connected with the 1st hollow chamber 93 of the 2nd valve rod 97.
In addition, because other structure is identical with the structure of position control valve 81 shown in Figure 6, therefore, for the part of performance same function when being marked with identical label, also omit its repeat specification for the record and the content of the annexation of the cylinder 11 of driver shown in Figure 1.
In the said structure, no matter pressure source be can shared valve casing 85 under two kinds or a kind of situation, sleeve 87 and the 2nd valve rod 97 etc., thereby can make the manufacturing expenses of position control valve lower.
According to as mentioned above can be clear, adopt the present invention, even also can suppress the leakage rate that the gap between sleeve and the valve rod causes under the situation that big capacity increases the diameter of valve rod, and can under the condition of the diameter of the hollow chamber that increases valve rod, realize lightweight in order to realize.
In addition, owing to be arranged on a plurality of outflows, the ostium on the sleeve and be arranged on a plurality of outflows on the valve rod, inflow entrance respectively uniformly-spaced to be configured in circumferencial direction, thereby, the state that can be easily supports valve rod with working fluid remains in the sleeve and suppresses and leaks, and the action of valve rod can also be brisk and promptly carry out.
Have, owing to form all grooves as runner at the outer circumferential face of sleeve, thereby the processing of its runner can make the drag losses of runner reduce again, thereby can suppress the heating that produces because of drag losses, can solve aforesaid prior art problems.

Claims (17)

1. a position control valve (81), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), free to rotate (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) free to rotate of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with rotation by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The rotation that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the rotation by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be respectively arranged with a plurality of be arranged on above-mentioned the 1st valve rod (91) on above-mentioned inflow entrance (141:143) and above-mentioned high pressure usefulness port (137) and the low pressure usefulness port (139) that optionally freely is connected with these inflow entrances, and a plurality of above-mentioned inflow entrance (141:143), a plurality of above-mentioned high pressure with port (137) and a plurality of above-mentioned low pressure with port (139) respectively uniformly-spaced to be configured in circumferencial direction.
2. a position control valve (81), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), free to rotate (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) free to rotate of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with rotation by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); Above-mentioned sleeve (87) is provided with rotation by above-mentioned the 2nd valve rod (97) and optionally is communicated with the exhaust port that the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) and is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the rotation by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be respectively arranged with above-mentioned the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) be communicated with the above-mentioned outflow opening (161) that is provided with and optionally with these outflow openings freely be connected the above-mentioned the 1st, the 2nd supply hole (147A, 147B) and the above-mentioned inflow entrance (163) that be communicated with to be provided with above-mentioned the 2nd hollow chamber (95) and optionally with these inflow entrances freely be connected the above-mentioned the 1st, attachment hole (the 149A of the 2nd driver, 149B); And a plurality of above-mentioned outflow openings (161), a plurality of above-mentioned the 1st, the 2nd supply holes (147A, 147B), the attachment hole of a plurality of above-mentioned inflow entrances (163) and a plurality of above-mentioned the 1st, the 2nd drivers (149A, 149B) are respectively uniformly-spaced to dispose in a circumferential direction.
3. a position control valve (81), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), free to rotate (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) free to rotate of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with rotation by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The rotation that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the rotation by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively a plurality of above-mentioned inflow entrances (141:143) that go up to be provided with at above-mentioned the 1st valve rod (91) and optionally with the above-mentioned high pressure that these inflow entrances freely are connected port (137) and above-mentioned low pressure port (139), and a plurality of above-mentioned inflow entrances (141:143), a plurality of above-mentioned high pressure use port (139) uniformly-spaced to dispose in a circumferential direction respectively with port (137) and a plurality of above-mentioned low pressure; Above-mentioned outflow opening (161) that above-mentioned the 1st hollow chamber (93) of a plurality of and above-mentioned the 2nd valve rod (97) be communicated with to be provided with and above-mentioned the 1st, the 2nd supply hole (147A, 147B) that optionally freely is connected with these outflow openings are set respectively and reach optionally the attachment hole (149A, 149B) of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances with above-mentioned inflow entrance (163) that above-mentioned the 2nd hollow chamber (95) is communicated with setting; And a plurality of above-mentioned outflow openings (161), the attachment hole (149A, 149B) of a plurality of above-mentioned the 1st, the 2nd supply holes (147A, 147B), a plurality of above-mentioned inflow entrance (163) and a plurality of above-mentioned the 1st, the 2nd drivers are respectively uniformly-spaced to dispose in a circumferential direction.
4. a position control valve (81A), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), free to rotate (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) that is free to slide of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with rotation by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The slip that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the slip by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively a plurality of above-mentioned inflow entrances (141:143) that go up to be provided with at above-mentioned the 1st valve rod (91) and optionally with the above-mentioned high pressure that these inflow entrances freely are connected port (137) and above-mentioned low pressure port (139), and a plurality of above-mentioned inflow entrances (141:143), a plurality of above-mentioned high pressure use port (139) respectively uniformly-spaced to dispose in a circumferential direction with port (137) and a plurality of above-mentioned low pressure.
5. a position control valve (81A), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), free to rotate (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) that is free to slide of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with rotation by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The slip that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the slip by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively above-mentioned outflow opening (161) that above-mentioned the 1st hollow chamber (93) of a plurality of and above-mentioned the 2nd valve rod (97) be communicated with to be provided with and optionally with these outflow openings freely be connected the above-mentioned the 1st, the 2nd supply hole (147A, 147B) and the above-mentioned inflow entrance (163) that be communicated with to be provided with above-mentioned the 2nd hollow chamber (95) and optionally with these inflow entrances freely be connected the above-mentioned the 1st, attachment hole (the 149A of the 2nd driver, 149B), and a plurality of above-mentioned outflow openings (161), the a plurality of the above-mentioned the 1st, the 2nd supply hole (147A, 147B), a plurality of above-mentioned inflows (163) and a plurality of the above-mentioned the 1st, attachment hole (the 149A of the 2nd driver, 149B) respectively uniformly-spaced to dispose in a circumferential direction.
6. a position control valve (81A), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), free to rotate (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) that is free to slide of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with rotation by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The slip that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the slip by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively and a plurality ofly be arranged on above-mentioned inflow entrance (141:143) and the above-mentioned high pressure that optionally freely is connected with these inflow entrances on the 1st valve rod (91) with port (137) and low pressure usefulness port (139), and a plurality of above-mentioned inflow entrances (141:143), a plurality of above-mentioned high pressure use port (139) respectively uniformly-spaced to dispose in a circumferential direction with port (137) and a plurality of above-mentioned low pressure; The above-mentioned inflow entrance (163) that is respectively arranged with above-mentioned outflow opening (161) that above-mentioned the 1st hollow chamber (93) of a plurality of and above-mentioned the 2nd valve rod (97) be communicated with to be provided with and above-mentioned the 1st, the 2nd supply hole (147A, 147B) that optionally freely is connected with these outflow openings and is connected setting with above-mentioned the 2nd hollow chamber (95) reaches optionally the attachment hole (149A, 149B) of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances; And a plurality of outflow openings (161), a plurality of above-mentioned the 1st, the 2nd supply holes (147A, 147B), the attachment hole of a plurality of above-mentioned inflows (163) and a plurality of above-mentioned the 1st, the 2nd drivers (149A, 149B) are respectively uniformly-spaced to dispose in a circumferential direction.
7. a position control valve (81B), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), that can be free to slide (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) free to rotate of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with slip by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The rotation that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the attachment hole (149A, 149B) of the 1st, the 2nd driver, 1st, the attachment hole of the 2nd driver (149A, 149B) is by the rotation of above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively a plurality of above-mentioned the 1st valve rod (91) go up the above-mentioned inflow entrances (141:143) that are provided with and optionally with the above-mentioned high pressure that these inflow entrances freely are connected port (137) and above-mentioned low pressure port (139); And a plurality of above-mentioned inflow entrances (141:143), a plurality of above-mentioned high pressure use port (139) respectively uniformly-spaced to dispose in a circumferential direction with port (137) and a plurality of above-mentioned low pressure.
8. a position control valve (81B), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), that can be free to slide (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) free to rotate of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with slip by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The rotation that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the rotation by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively above-mentioned outflow opening (161) that above-mentioned the 1st hollow chamber (93) of a plurality of and above-mentioned the 2nd valve rod (97) be communicated with to be provided with and optionally with these outflow openings freely be connected the above-mentioned the 1st, the 2nd supply hole (147A, 147B) and the above-mentioned inflow entrance (163) that be communicated with to be provided with above-mentioned the 2nd hollow chamber (95) and optionally with these inflow entrances freely be connected the above-mentioned the 1st, attachment hole (the 149A of the 2nd driver, 149B), and a plurality of above-mentioned outflow openings (161), the a plurality of the above-mentioned the 1st, the 2nd supply hole (147A, 147B), a plurality of above-mentioned inflow entrances (163) and a plurality of the above-mentioned the 1st, attachment hole (the 149A of the 2nd driver, 149B) respectively uniformly-spaced to dispose in a circumferential direction.
9. a position control valve (81B), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), that can be free to slide (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) free to rotate of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with slip by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The rotation that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the rotation by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively and a plurality ofly be arranged on above-mentioned inflow entrance (141:143) and the above-mentioned high pressure that optionally freely is connected with these inflow entrances on the 1st valve rod (91) with port (137) and low pressure usefulness port (139), and a plurality of above-mentioned inflow entrances (141:143), a plurality of above-mentioned high pressure use port (139) respectively uniformly-spaced to dispose in a circumferential direction with port (137) and a plurality of above-mentioned low pressure; The above-mentioned inflow entrance (163) that is respectively arranged with above-mentioned outflow opening (161) that above-mentioned the 1st hollow chamber (93) of a plurality of and above-mentioned the 2nd valve rod (97) be communicated with to be provided with and above-mentioned the 1st, the 2nd supply hole (147A, 147B) that optionally freely is connected with these outflow openings and is connected setting with above-mentioned the 2nd hollow chamber (95) reaches optionally the attachment hole (149A, 149B) of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances; And a plurality of outflow openings (161), a plurality of above-mentioned the 1st, the 2nd supply holes (147A, 147B), the attachment hole of a plurality of above-mentioned inflow entrances (163) and a plurality of above-mentioned the 1st, the 2nd drivers (149A, 149B) are respectively uniformly-spaced to dispose in a circumferential direction.
10. a position control valve (81C), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), that can be free to slide (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) that is free to slide of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with slip by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The slip that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the slip by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively a plurality of above-mentioned inflow entrances (141:143) that go up to be provided with at above-mentioned the 1st valve rod (91) and optionally with the above-mentioned high pressure that these inflow entrances freely are connected port (137) and above-mentioned low pressure port (139), and a plurality of above-mentioned inflow entrances (141:143), a plurality of above-mentioned high pressure use port (139) respectively uniformly-spaced to dispose in a circumferential direction with port (137) and a plurality of above-mentioned low pressure.
A 11. position control valve (81C), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), that can be free to slide (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) that is free to slide of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with slip by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The slip that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the slip by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively above-mentioned outflow opening (161) that above-mentioned the 1st hollow chamber (93) of a plurality of and above-mentioned the 2nd valve rod (97) be communicated with to be provided with and optionally with these outflow openings freely be connected the above-mentioned the 1st, the 2nd supply hole (147A, 147B) and the above-mentioned inflow entrance (163) that be communicated with to be provided with above-mentioned the 2nd hollow chamber (95) and optionally with these inflow entrances freely be connected the above-mentioned the 1st, attachment hole (the 149A of the 2nd driver, 149B), and a plurality of above-mentioned outflow openings (161), the a plurality of the above-mentioned the 1st, the 2nd supply hole (147A, 147B), a plurality of above-mentioned inflow entrances (163) and a plurality of the above-mentioned the 1st, attachment hole (the 149A of the 2nd driver, 149B) respectively uniformly-spaced to dispose in a circumferential direction.
A 12. position control valve (81C), it is characterized in that: in the sleeve (87) in embedding is fixed on valve casing (85), when being provided with the 1st valve rod (89), that can be free to slide (91) that possesses hollow chamber, be provided with at the 2nd valve rod (97) that is free to slide of axially dividing and possess the 1st hollow chamber (93) and the 2nd hollow chamber (95); Above-mentioned sleeve (87) is provided with slip by above-mentioned the 1st valve rod (91) when optionally going up high pressure usefulness port (137) that the inflow entrance (141:143) that is provided with freely is connected and low pressure with port (139) with the 1st valve rod (91), above-mentioned sleeve (87) often with at above-mentioned the 1st valve rod (91) is provided with and goes up the spout (146) that the outflow opening (145) that is provided with is in coupled condition, to be arranged to be communicated with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97) with flowing into the inflow entrance (155) that groove (157) often is in coupled condition, this inflow groove (157) be connected with above-mentioned spout (146); The slip that above-mentioned sleeve (87) is provided with by above-mentioned the 2nd valve rod (97) optionally is communicated with the 1st, the 2nd supply hole (147A, 147B) that the outflow opening that is provided with freely is connected with the 1st hollow chamber (93) of above-mentioned the 2nd valve rod (97); The exhaust port that will often be in coupled condition with the drainage port (151) on being arranged on above-mentioned sleeve (87) is arranged to be communicated with the 2nd hollow chamber (95) of above-mentioned the 2nd valve rod (97); Above-mentioned sleeve (87) is provided with the 1st, attachment hole (the 149A of the 2nd driver, 149B), the 1st, attachment hole (the 149A of the 2nd driver, 149B) the slip by above-mentioned the 2nd valve rod (97), freely connect above-mentioned the 2nd hollow chamber and be arranged on inflow entrance on the 2nd valve rod (97) (95), be provided with respectively and a plurality ofly be arranged on above-mentioned inflow entrance (141:143) and the above-mentioned high pressure that optionally freely is connected with these inflow entrances on the 1st valve rod (91) with port (137) and low pressure usefulness port (139), and a plurality of above-mentioned inflow entrances (141:143), a plurality of above-mentioned high pressure use port (139) respectively uniformly-spaced to dispose in a circumferential direction with port (137) and a plurality of above-mentioned low pressure; The above-mentioned inflow entrance (163) that is respectively arranged with above-mentioned outflow opening (161) that above-mentioned the 1st hollow chamber (93) of a plurality of and above-mentioned the 2nd valve rod (97) be communicated with to be provided with and above-mentioned the 1st, the 2nd supply hole (147A, 147B) that optionally freely is connected with these outflow openings and is connected setting with above-mentioned the 2nd hollow chamber (95) reaches optionally the attachment hole (149A, 149B) of above-mentioned the 1st, the 2nd driver that freely is connected with these inflow entrances; And a plurality of outflow openings (161), a plurality of above-mentioned the 1st, the 2nd supply holes (147A, 147B), the attachment hole of a plurality of above-mentioned inflow entrances (163) and a plurality of above-mentioned the 1st, the 2nd drivers (149A, 149B) are respectively uniformly-spaced to dispose in a circumferential direction.
13. according to any one described position control valve (81:81A:81B:81C) among the claim 1-12, it is characterized in that: output shaft and above-mentioned the 1st valve rod (91) that is used to drive the 1st driver (103,103A) of above-mentioned the 1st valve rod (91) directly is connected when being provided with, and the output shaft and above-mentioned the 2nd valve rod (97) that are used to drive the 2nd driver (111A) of above-mentioned the 2nd valve rod (97) are direct-connected structure.
14., it is characterized in that: be used to be connected the outer circumferential face that above-mentioned valve casing (85) is gone up a plurality of fluid bore of forming (113,115,117A, 117B, 119A, 119B) and is formed at above-mentioned sleeve (87) in the fluid passage (123,125,127,129,131,133,135) that above-mentioned sleeve (87) is gone up above-mentioned each port (137,139) that forms according to any one described position control valve (81:81A:81B:81C) among the claim 1-12.
15. position control valve according to claim 14 (81:81A:81B:81C) is characterized in that: it is bigger that above-mentioned fluid passage (123,125,127,129,131,133,135) make the sectional area that near the sectional area ratio the joint with above-mentioned fluid bore leaves part from above-mentioned fluid bore (113,115,117A, 117B, 119A, 119B).
16. position control valve according to claim 14 (81:81A:81B:81C) is characterized in that: being arranged on above-mentioned outflow opening (145) on the above-mentioned valve rod (91,97) and at least one side of above-mentioned inflow entrance (155) is the hole that has the shape of parallel portion in both sides; The above-mentioned high pressure that is arranged on the above-mentioned sleeve (87) is the hole with Qu Yuan with port (137) or above-mentioned low pressure with port (139).
17. position control valve according to claim 14 (81:81A:81B:81C) is characterized in that: the gap between the inner peripheral surface of the outer circumferential face of above-mentioned valve rod (91:97) and above-mentioned sleeve (87) is 8 μ m-30 μ.
CN 200610163363 2001-08-15 2002-08-15 Directional control valve Pending CN1955494A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001246545 2001-08-15
JP2001246545 2001-08-15
JP2002120657 2002-04-23

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CNB028204247A Division CN100387878C (en) 2001-08-15 2002-08-15 Directional control valve

Publications (1)

Publication Number Publication Date
CN1955494A true CN1955494A (en) 2007-05-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200610163363 Pending CN1955494A (en) 2001-08-15 2002-08-15 Directional control valve

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Country Link
CN (1) CN1955494A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101598224B (en) * 2008-06-02 2011-05-25 周瑛琪 Universal type quasi-fluid system
CN107002891A (en) * 2014-12-16 2017-08-01 Kyb-Ys株式会社 Revolving valve and the fluid pressure drive mechanism with the revolving valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101598224B (en) * 2008-06-02 2011-05-25 周瑛琪 Universal type quasi-fluid system
CN107002891A (en) * 2014-12-16 2017-08-01 Kyb-Ys株式会社 Revolving valve and the fluid pressure drive mechanism with the revolving valve
CN107002891B (en) * 2014-12-16 2019-09-20 Kyb-Ys株式会社 Revolving valve and fluid with the revolving valve press driving mechanism

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