CN101936316A - Positive flow control engineering machinery multi-path reversing valve - Google Patents
Positive flow control engineering machinery multi-path reversing valve Download PDFInfo
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- CN101936316A CN101936316A CN 201010298218 CN201010298218A CN101936316A CN 101936316 A CN101936316 A CN 101936316A CN 201010298218 CN201010298218 CN 201010298218 CN 201010298218 A CN201010298218 A CN 201010298218A CN 101936316 A CN101936316 A CN 101936316A
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Abstract
The invention discloses a positive flow control engineering machinery multi-path reversing valve, which belongs to the technical field of hydraulic working systems of engineering machinery. The reversing valve comprises a valve body, a sequence valve, a rotating bucket linkage device and a movable arm linkage device, wherein the sequence valve is arranged on the valve body; the rotating bucket linkage device is a three-position six-way O-shaped sliding valve; the movable arm linkage device is a four-position four-way Q-shaped sliding valve; the valve body is also cooperatively provided with a pressure control detection linkage device; and one end of a control valve rod is cooperatively provided with a control valve rod spring positioning component. By coordinating the multi-path valve with a pump for work, the displacement of the pump can be controlled according to operation of operation personnel and specific working condition under the condition that the rotation speed of an engine is unchanged, so real-time control of flow is realized, oil is supplied as required, unnecessary energy loss is reduced and effective energy conservation effect is brought into play. Meanwhile, the power configuration level of the engine can also be reduced.
Description
Technical field
The invention belongs to the hydraulic work systems technology field of engineering machinery, be specifically related to the positive flow Control Engineering machinery of a kind of variable control system multiple directional control valve.
Background technique
Domestic current engineering machinery such as loader, the basically quantitative systems that adopt of its hydraulic work system seldom adopt variable system more, even the employing variable system, its hydraulic element also all are to adopt external hydraulic element basically, make the cost of loader improve.Existing domestic loader generally all is the multiple directional control valve that adopts metering pump, non-loaded feedback, the output flow of this system is that the rotating speed of motor drive pump multiply by pump delivery, so this system output flow can under the control of the rotating speed of motor, in a segment limit, regulate.And how much the output of flow directly is artificial control, be not that needs according to system provide corresponding flow, the required maximum power ratio of system works is higher, engine power configuration level height, motor neither be operated under the optimum speed state simultaneously, and unnecessary energy loss is bigger.
Summary of the invention
At the above-mentioned problems in the prior art, the object of the present invention is to provide the positive flow Control Engineering machinery of a kind of variable control system multiple directional control valve.
Described a kind of positive flow Control Engineering machinery multiple directional control valve, comprise valve body, be installed in sequence valve, rotating bucket multi pack on the valve body and put with the swing arm multi pack and put, described rotating bucket multi pack is changed to three six logical O type guiding valves, comprises the rotary valve pole that is equipped with in valve body; Described swing arm multi pack is changed to four four-way Q type guiding valves, comprises being equipped with the moving arm valve pole that is arranged in the valve body; Also being equipped with pressure control detection multi pack on the described valve body puts, described pressure control detection multi pack is put and is comprised control valve rod and the guide's gas pressure relief slot that is equipped with on valve body, described control valve rod one end is equipped with control valve rod spring positioning component, described rotary valve pole one end is equipped with rotary valve pole spring positioning component, described moving arm valve pole one end is equipped with moving arm valve pole spring positioning component, is equipped with one group of hydraulic fluid port in the described valve body chamber.
Described a kind of positive flow Control Engineering machinery multiple directional control valve is characterized in that described control valve rod spring positioning component, rotary valve pole spring positioning component, moving arm valve pole spring positioning component are made of spring and the spring seat that is fixedly installed on both ends of the spring respectively.
Described a kind of positive flow Control Engineering machinery multiple directional control valve is characterized in that being equipped with throttling groove on the described control valve rod.
Described a kind of positive flow Control Engineering machinery multiple directional control valve is characterized in that being equipped with main safety valve on described filler opening.
Described a kind of positive flow Control Engineering machinery multiple directional control valve is characterized in that putting to be equipped with to turn at described rotating bucket multi pack carrying Fill valve and turning over a year Fill valve down.
Described a kind of positive flow Control Engineering machinery multiple directional control valve is characterized in that putting to be equipped with at described swing arm multi pack promoting the overload Fill valve.
Described a kind of positive flow Control Engineering machinery multiple directional control valve is characterized in that being equipped with on the described multiple directional control valve hydraulic fluid port c, hydraulic fluid port t, hydraulic fluid port A1, hydraulic fluid port A2, hydraulic fluid port a1, hydraulic fluid port a2, hydraulic fluid port B1, hydraulic fluid port B2, hydraulic fluid port b1, hydraulic fluid port b2, hydraulic fluid port k.
Above-mentioned a kind of positive flow Control Engineering machinery multiple directional control valve, comprise valve body, be installed in sequence valve, rotating bucket multi pack on the valve body and put with the swing arm multi pack and put, described rotating bucket multi pack is changed to three six logical O type guiding valves, comprises the rotary valve pole that is equipped with in valve body; Described swing arm multi pack is changed to four four-way Q type guiding valves, comprises being equipped with the moving arm valve pole that is arranged in the valve body; Also being equipped with pressure control detection multi pack on the described valve body puts, described pressure control detection multi pack is put and is comprised control valve rod and the guide's gas pressure relief slot that is equipped with on valve body, described control valve rod one end is equipped with control valve rod spring positioning component, described rotary valve pole one end is equipped with rotary valve pole spring positioning component, described moving arm valve pole one end is equipped with moving arm valve pole spring positioning component, is equipped with one group of hydraulic fluid port in the described valve body chamber.Compared with prior art, the present invention is by following the pump cooperating with multi-way valve, can be under the constant situation of engine speed, according to operator's manipulation and concrete operating mode, pump delivery is controlled, realization is to the real-time control of flow, accomplish fuel feeding as required, not only reduce unnecessary energy loss, effectively play energy-conserving action, but also can reduce the power configuration grade of motor, simultaneously by control to pressure difference value between total in-line of valve and the rotating bucket in-line, thereby control changes with the hydraulic pump discharge that valve is used, and the pressure difference value difference is big more between total in-line and the rotating bucket in-line, and pump delivery is just more little.
Description of drawings
Fig. 1 is a plan view of the present invention;
Fig. 2 is the vertical sectional view of looking of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 2;
Fig. 4 is the C-C sectional view of Fig. 2;
Fig. 5 is the D-D sectional view of Fig. 2;
Fig. 6 is a hydraulic schematic diagram of the present invention.
Among the figure: 1-sequence valve, 2-filler opening, the total oil-feed tank of 3-, 4-rotating bucket oil-feed tank, 5-valve body, 6-control valve rod spring positioning component, the right oil-feed tank of 7-rotating bucket, commentaries on classics oil groove under the 8-, 9-rotary valve pole, the 10-moving arm valve pole, 11-decline oil groove, 12-swing arm oil-feed tank, 13-promotes oil groove, 14-oil-return groove, 15-moving arm valve pole spring positioning component, 16-rotary valve pole spring positioning component, the last commentaries on classics of 17-oil groove, 18-rotating bucket left side oil-feed tank, 19-controls valve rod, 20-guide's gas pressure relief slot, the 21-main safety valve turns on the 22-and carries Fill valve, turn over for 23 times and carry Fill valve, 24 promote overload Fill valve, 25-multiple directional control valve, 26-pilot valve.
Embodiment
The present invention is further illustrated below in conjunction with Figure of description:
Shown in Fig. 1-6, a kind of positive flow Control Engineering machinery multiple directional control valve, comprise valve body 5, be installed in sequence valve 1, rotating bucket multi pack on the valve body 5 and put with the swing arm multi pack and put that described rotating bucket multi pack is changed to three six logical O type guiding valves, comprises the rotary valve pole 9 that is equipped with in valve body 5; Described swing arm multi pack is changed to four four-way Q type guiding valves, comprises being equipped with the moving arm valve pole 10 that is arranged in the valve body 5; Also being equipped with pressure control detection multi pack on the described valve body 5 puts, described pressure control detection multi pack is put and is comprised control valve rod 19 and the guide's gas pressure relief slot 20 that is equipped with on valve body 5, described control valve rod 19 1 ends are equipped with control valve rod spring positioning component 6, described rotary valve pole 9 one ends are equipped with rotary valve pole spring positioning component 16, described moving arm valve pole 9 one ends are equipped with moving arm valve pole spring positioning component 15, and described valve body is equipped with one group of hydraulic fluid port in 5 chambeies.Described control valve rod spring positioning component 6, rotary valve pole spring positioning component 16, moving arm valve pole spring positioning component 15 are made of spring and the spring seat that is fixedly installed on both ends of the spring respectively.Be equipped with throttling groove on the described control valve rod 19.Main safety valve 21 is set on the described filler opening.
Described rotating bucket multi pack is put to be equipped with to turn over and is carried Fill valve 22 and turn over a year Fill valve 23 down.Described swing arm multi pack is put to be equipped with and is promoted overload Fill valve 24.Be equipped with hydraulic fluid port c, hydraulic fluid port t on the described valve, hydraulic fluid port c, hydraulic fluid port A1, hydraulic fluid port A2, hydraulic fluid port a1, hydraulic fluid port a2, hydraulic fluid port B1, hydraulic fluid port B2, hydraulic fluid port b1, hydraulic fluid port b2, hydraulic fluid port k.
The present invention has following several operating mode when work:
1, meta position
Shown in Fig. 1-6, during pilot valve 26 metas, hydraulic fluid port c, hydraulic fluid port t communicate with oil return, and it is left side limit position that control valve rod 19 is in original state, rotary valve pole 9, moving arm valve pole 10 all are in the meta position, and rotating bucket oil-feed tank 4 communicates with oil return t by the aperture on the control valve rod 19 at this moment.Detect low-pressure from the k mouth this moment, feeds back to pump, pump high pressure, small flow output.
2, going up transposition puts
Shown in Fig. 1-6, when pilot valve 26 is pulled certain angle, and to hydraulic fluid port c, during hydraulic fluid port a1 incoming pressure, rotary valve pole 9 moves right under the effect of pilot pressure with control valve rod 19, aperture on the control valve rod 19 is slowly covered in by valve body 5, rotating bucket oil-feed tank 7 is cut off with oil return t, increase along with the pilot valve delivery pressure, total oil-feed tank 3 is connected gradually by throttling groove and rotating bucket oil-feed tank 4 on the control valve rod 19, rotating bucket left side oil-feed tank 18, the right oil-feed tank 7 of rotating bucket is cut off gradually with swing arm oil-feed tank 12, rotating bucket left side oil-feed tank 18 is connected gradually with last commentaries on classics oil groove 17 simultaneously, and following commentaries on classics oil groove 8 is connected gradually with oil-return groove 14.Fluid enters rotating bucket oil-feed tank 4 from total oil-feed tank 3 through the opening that forms between control valve rod 19 and the valve body 5, enter by rotating bucket left side oil-feed tank 18 again and change oil groove 17 arrival A1 mouths, arrive actuator again, the B1 mouth is got back in the oil return of actuator, again through commentaries on classics oil groove 8 arrival oil-return grooves 14 oil returns down, rotating function in the realization.In whole process, along with the increase of pilot pressure, it is big more that control spool 19, the opening of valve body 5 between total in-line 3 and rotating bucket oil-feed tank 4 are just opened, and the crushing that forms at opening is just more little.Pump is just made corresponding reaction according to detected pressure reduction on total in-line 3 and the rotating bucket oil-feed tank 4 like this, it is more little that pilot valve is moved angle, the pilot pressure of output is just more little, opening is just more little between total in-line 3, the rotating bucket in-line 4, the crushing that opening produces is just big more, and POF is just more little.It is big more that otherwise pilot valve is moved angle, and POF is just big more.
3, transposition is put down
Following transposition is put process and is above-mentionedly gone up the similar process that transposition is put.
4, raised position
Shown in Fig. 1-6, when pilot valve 26 is pulled certain angle, and when hydraulic fluid port c, hydraulic fluid port b1 delivery pressure, moving arm valve pole 10 moves right under the effect of pilot pressure with control valve rod 19, aperture on the control valve rod 19 is slowly covered in by valve body hole, rotating bucket meta oil groove and oil return t are cut off, increase along with the pilot valve delivery pressure, throttling groove and the rotating bucket oil-feed tank 4 on the valve body 5 on the control valve rod 19 are connected gradually, swing arm oil-feed tank 12 is connected gradually with promoting oil groove 13, and decline oil groove 11 is connected gradually with oil-return groove 14.Fluid enters rotating bucket oil-feed tank 4 from total oil-feed tank 3 through the opening that forms between control valve rod 19 and the valve body 5, divide two-way to arrive swing arm oil-feed tank 12 from the right oil-feed tank 7 of rotating bucket left side oil-feed tank 18 and rotating bucket respectively again, arrive actuator again through promoting oil groove arrival A2 mouth again, port for drawdown B2 is got back in actuator's oil return, arrive oil-return groove 14 through decline oil groove 11, thereby realize enhanced feature.In whole process, along with the increase of pilot pressure, it is big more that control spool 19, the opening of valve body 5 between total in-line 3 and rotating bucket oil-feed tank 4 are just opened, and the crushing that forms at opening is just more little.Pump is just made corresponding reaction according to detected pressure reduction on total in-line 3 and the rotating bucket oil-feed tank 4 like this, it is more little that pilot valve is moved angle, the pilot pressure of output is just more little, opening is just more little between total in-line 3, the rotating bucket in-line 4, the crushing that opening produces is just big more, and POF is just more little.It is big more that otherwise pilot valve is moved angle, and POF is just big more.
5, lowering position
The similar process of lowering position process and above-mentioned raised position.
6, floating position
Shown in Fig. 1-6, when multiple directional control valve 25 is in lowering position, and pilot valve is passed to the pressure of c, b2 mouth and continue increases, and control valve rod 19 continues to turn right and moves to pilot pressure and the spring force position of balancing each other, and moving arm valve pole 10 continues to turn left and moves to the left end limit position.The opening of valve body 5 this moment between total in-line 3 and rotating bucket oil-feed tank 4 just reaches maximum, fluid from then on opening cross the crushing of generation will be very little; Decline oil groove 11, swing arm meta oil groove 12, lifting oil groove 13, oil-return groove 14 are interconnected, and valve is realized the decline function.The detected pressure feedback of k mouth is to the work of pump control pump simultaneously, and the pump place of doing is corresponding reacts, the little pressure output of big flow.
7, high pressure operating mode
Shown in Fig. 1-6, rotary valve pole 9 or moving arm valve pole 10 are in the course of the work, when heavy load appears in working hole, when causing total filler opening pressure to surpass the pressure of sequence valve 1 setting, sequence valve 1 is opened, made the pilot pressure chamber communicate with guide's gas pressure relief slot 20 under the effect of control valve rod 19 at pilot pressure, hydraulic fluid port c pressure can descend, and control valve rod 9 past moving left rest on a certain position.Control valve rod 19 forms certain opening with valve body 5, and hydraulic oil will form certain crushing herein.If control valve rod 19 does not make the pilot pressure chamber communicate with guide's gas pressure relief slot 20, then control valve rod 19 and maintain the origin-location.
The present invention passes through the control to pressure difference value between total in-line of valve and the rotating bucket in-line, thereby control changes with the hydraulic pump discharge that valve is used, and the pressure difference value difference is big more between total in-line and the rotating bucket in-line, and pump delivery is just more little.When pilot valve is pulled certain angle, promptly when last commentaries on classics, commentaries on classics down, lifting, lowering position, the pilot pressure of pilot valve output with always between in-line, the rotating bucket in-line openings of sizes be directly proportional, the big more pressure reduction of opening is more little.It is more little that pilot valve is moved angle, and the pilot pressure of output is just more little, and opening is just more little between total in-line, the rotating bucket in-line, and the crushing that opening produces is just big more, and POF is just more little.It is big more that otherwise pilot valve is moved angle, and POF is just big more.The inlet of valve is provided with a sequence valve, when if inlet pressure surpasses the pressure of sequence valve setting in the working procedure, sequence valve is opened, if the relative displacement that control between valve rod and the valve body this moment is bigger, pilot control opening communicates with the oil-feed of sequence valve, the pressure of pilot control opening can descend so, and the control valve rod moves to left, and rests on the position of pilot pressure with the spring force balance at last.If the relative displacement that control between valve rod and the valve body this moment is smaller, the control valve rod does not react, and keeps the origin-location.
Claims (7)
1.
A kind of positive flow Control Engineering machinery multiple directional control valve, comprise valve body (5), be installed in sequence valve (1), rotating bucket multi pack on the valve body (5) and put with the swing arm multi pack and put, described rotating bucket multi pack is changed to three six logical O type guiding valves, comprises the rotary valve pole (9) that is equipped with in valve body (5); Described swing arm multi pack is changed to four four-way Q type guiding valves, comprises the moving arm valve pole (10) that is equipped with in valve body (5); It is characterized in that also being equipped with on the described valve body (5) pressure control detection multi pack puts, described pressure control detection multi pack is put and is comprised control valve rod (19) and the guide's gas pressure relief slot (20) that is equipped with on valve body (5), described control valve rod (19) one ends are equipped with control valve rod spring positioning component (6), described rotary valve pole (9) one ends are equipped with rotary valve pole spring positioning component (16), described moving arm valve pole (10) one ends are equipped with moving arm valve pole spring positioning component (15), and described valve body (5) is equipped with one group of hydraulic fluid port on the chamber.
2.
A kind of positive flow Control Engineering machinery multiple directional control valve according to claim 1 is characterized in that described control valve rod spring positioning component (6), rotary valve pole spring positioning component (16), moving arm valve pole spring positioning component (15) are made of spring and the spring seat etc. that is arranged on both ends of the spring respectively.
3.
A kind of positive flow Control Engineering machinery multiple directional control valve according to claim 1 is characterized in that being equipped with throttling groove on the described control valve rod (19).
4.
A kind of positive flow Control Engineering machinery multiple directional control valve according to claim 3 is characterized in that being provided with main safety valve (21) on filler opening 2.
5.
A kind of positive flow Control Engineering machinery multiple directional control valve according to claim 3 is characterized in that putting to be equipped with to turn at described rotating bucket multi pack carrying Fill valve (22) and turning over a year Fill valve (23) down.
6.
A kind of positive flow Control Engineering machinery multiple directional control valve according to claim 3 is characterized in that putting to be equipped with at described swing arm multi pack promoting overload Fill valve (24).
7.
A kind of positive flow Control Engineering machinery multiple directional control valve according to claim 1 is characterized in that being equipped with on the described multiple directional control valve hydraulic fluid port c, hydraulic fluid port t, hydraulic fluid port A1, hydraulic fluid port A2, hydraulic fluid port a1, hydraulic fluid port a2, hydraulic fluid port B1, hydraulic fluid port B2, hydraulic fluid port b1, hydraulic fluid port b2, hydraulic fluid port k.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298218 CN101936316B (en) | 2010-09-30 | 2010-09-30 | Positive flow control engineering machinery multi-path reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010298218 CN101936316B (en) | 2010-09-30 | 2010-09-30 | Positive flow control engineering machinery multi-path reversing valve |
Publications (2)
| Publication Number | Publication Date |
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| CN101936316A true CN101936316A (en) | 2011-01-05 |
| CN101936316B CN101936316B (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010298218 Expired - Fee Related CN101936316B (en) | 2010-09-30 | 2010-09-30 | Positive flow control engineering machinery multi-path reversing valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148036A (en) * | 2013-03-19 | 2013-06-12 | 临海市乐建液压件有限公司 | Hydraulic valve |
| CN105840576A (en) * | 2016-05-18 | 2016-08-10 | 山东常林机械集团股份有限公司 | Electrically controlled reversing valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850082A (en) * | 1971-11-30 | 1974-11-26 | Adeola Ag | Fluid flow control elements |
| CN2849267Y (en) * | 2005-08-19 | 2006-12-20 | 许自进 | Improved one-piece type multiple way reversing valve of loading machine |
| DE102006032908A1 (en) * | 2006-07-15 | 2008-01-24 | Alpha Fluid Hydrauliksysteme Müller GmbH | Multi-way valve block with mechanical and electro-hydraulic actuators, |
| CN101338829A (en) * | 2008-08-12 | 2009-01-07 | 临海多伊尔机械有限公司 | Multipath hydraulic change-over valve |
| CN201344163Y (en) * | 2009-02-13 | 2009-11-11 | 临海市海克力机械有限公司 | Improved hydraulic multichannel conversion valve |
| CN201786799U (en) * | 2010-09-30 | 2011-04-06 | 临海市海克力机械有限公司 | Multipath reversing valve of positive flow control engineering machinery |
-
2010
- 2010-09-30 CN CN 201010298218 patent/CN101936316B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850082A (en) * | 1971-11-30 | 1974-11-26 | Adeola Ag | Fluid flow control elements |
| CN2849267Y (en) * | 2005-08-19 | 2006-12-20 | 许自进 | Improved one-piece type multiple way reversing valve of loading machine |
| DE102006032908A1 (en) * | 2006-07-15 | 2008-01-24 | Alpha Fluid Hydrauliksysteme Müller GmbH | Multi-way valve block with mechanical and electro-hydraulic actuators, |
| CN101338829A (en) * | 2008-08-12 | 2009-01-07 | 临海多伊尔机械有限公司 | Multipath hydraulic change-over valve |
| CN201344163Y (en) * | 2009-02-13 | 2009-11-11 | 临海市海克力机械有限公司 | Improved hydraulic multichannel conversion valve |
| CN201786799U (en) * | 2010-09-30 | 2011-04-06 | 临海市海克力机械有限公司 | Multipath reversing valve of positive flow control engineering machinery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148036A (en) * | 2013-03-19 | 2013-06-12 | 临海市乐建液压件有限公司 | Hydraulic valve |
| CN103148036B (en) * | 2013-03-19 | 2015-09-09 | 临海市乐建液压件有限公司 | Hydrovalve |
| CN105840576A (en) * | 2016-05-18 | 2016-08-10 | 山东常林机械集团股份有限公司 | Electrically controlled reversing valve |
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| Publication number | Publication date |
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| CN101936316B (en) | 2013-01-23 |
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| CB02 | Change of applicant information |
Address after: 317000, Zhejiang, Taizhou City, Hai Hai economic development zone (Luohe River) Applicant after: Zhejiang Hercules Hydraulic Co., Ltd. Address before: 317000, Zhejiang, Taizhou City, Hai Hai economic development zone (Luohe River) Applicant before: Linhai City Haikeli Machinery Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: LINHAI HERCULES PUMP CO., LTD. TO: ZHEJIANG HAIKELI HYDRAULIC CO., LTD. |
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Granted publication date: 20130123 Termination date: 20160930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |