CN105526204A - Two-end-independent guidance and control type electro-hydraulic proportional reversing valve - Google Patents
Two-end-independent guidance and control type electro-hydraulic proportional reversing valve Download PDFInfo
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- CN105526204A CN105526204A CN201610048144.3A CN201610048144A CN105526204A CN 105526204 A CN105526204 A CN 105526204A CN 201610048144 A CN201610048144 A CN 201610048144A CN 105526204 A CN105526204 A CN 105526204A
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- joint
- reversing valve
- elastic helix
- pressure
- helix part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a two-end-independent guidance and control type electro-hydraulic proportional reversing valve. The electro-hydraulic proportional reversing valve comprises a reversing valve, two rotating proportional electromagnets and two pressure-torsion couplings; the two rotating proportional electromagnets are respectively connected with a valve element through the pressure-torsion couplings; the torsion-pressure couplings include first connecting parts, second connecting parts, first elastic spiral parts, second elastic spiral parts, mounting plates and feedback rods; and the first connecting parts, the second connecting parts, the first elastic spiral parts, the second elastic spiral parts, the mounting plates and the feedback rods form an integral structure. The electro-hydraulic proportional reversing valve has the following beneficial effects: the electro-hydraulic proportional reversing valve adopts the structure of the pressure-torsion couplings; when rotors push the second connecting parts to move towards the valve element, the first elastic spiral parts and the second elastic spiral parts generate relative twisting to drive the first connecting parts to perform a rotating motion; and the electro-hydraulic proportional reversing valve has such advantages as friction-free transfer, good flexibility, small size and convenience for machining and assembly.
Description
Technical field
The present invention relates to electro-hydraulic proportional control system field, more particularly, relate to a kind of two ends and independently lead control type electrohydraulic proportional reversing valve.
Background technique
Electro-hydraulic proportional valve is adoption rate control technique, a kind of hydraulic element between switch type hydraulic valve and electrohydraulic control.Because electro-hydraulic proportional valve can combine with electric control device, be thus convenient to carry out calculation process to various input, output signal, to realize complicated controlling functions.Meanwhile, electro-hydraulic proportional valve has antipollution, low cost and the advantages such as fast response time, obtains a wide range of applications in the industrial production.
Existing electro-hydraulic proportion reversing valve generally can adopt direct-acting type and lead the design proposal of control type two kinds of structures.Direct action type electrohydraulic proportional selector valve is moved by rotational rate electromagnet Direct driver spool, and its structure is simple, and can work under zero pressure, but controls owing to cannot realize large discharge by the restriction of rotational rate electromagnet thrust output.Lead control type electro-hydraulic proportion reversing valve to be changed by the pressure of pilot valve control bound sensitive cavity, produce larger hydraulic static pressure-driven main valve plug motion, large discharge can be realized and control, but its complex structure, and work under governor pressure cannot being led zero.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of high-pressure high-flow, and control type electrohydraulic proportional reversing valve is independently led at the simple two ends of structure.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of two ends and independently lead control type electrohydraulic proportional reversing valve, comprise selector valve, two rotational rate electromagnets being connected to described selector valve two ends, and two pressures turns round coupling; Described selector valve comprises valve body, and is arranged on the spool in described valve body; Each described rotational rate electromagnet comprises housing, and is arranged on the rotor in described housing;
Described spool left end shoulder offers two pairs of left end pressure holes of radial symmetric distribution, two pairs of left end pressure holes communicate with system pressure mouth P mouth; Described spool right-hand member offers two pairs of right-hand member pressure holes with two pairs of left end pressure hole symmetries, and two pairs of right-hand member pressure holes communicate with system pressure mouth P mouth; Described valve inner offers leftly to be experienced passage and rightly experiences passage, describedly leftly experiences passage and communicates with spool left end sensitive cavity, describedly rightly experiences passage and communicates with spool right-hand member sensitive cavity; When described electro-hydraulic proportion reversing valve is in the initial position of balance, describedly leftly experience passage and two pairs of left end pressure holes form the first transfer area, describedly rightly experience passage and two pairs of right-hand member pressure holes form the second transfer area, the first transfer area is identical with the second transfer area;
Each described rotational rate electromagnet is turned round coupling respectively by described pressure and is connected with described spool; Each described pressure is turned round coupling and is comprised the second joint that the first joint of being fixedly connected with described spool is fixedly connected with described rotor, is connected to the first elastic helix part between described first joint and described second joint and the second elastic helix part, mounting plate, and multiple feedback rod; Described spool, described first joint, described second joint, and described rotor is all coaxially arranged; Described first joint, described second joint, described first elastic helix part, described second elastic helix part, described mounting plate and described feedback rod are integrated;
Described first joint is the cylindrical body that external diameter is identical with described second joint; Described first elastic helix part is identical with the rotation direction of described second elastic helix part, and described first elastic helix part and the projection of described second elastic helix part respectively on the same end face of described first joint are separated from each other; Described mounting plate comprises the plate body be fixedly mounted on described valve body, and is opened in the through hole at described plate body center; Described first joint can in described through hole fore and aft motion; Between the outer wall that each described feedback rod is connected to described first joint and the inwall of described through hole; Multiple described feedback rod is evenly distributed on the outer wall of described first joint;
When described rotor turns is to drive described second joint to rotate, described first elastic helix part and described second elastic helix part produce relative torsion to drive described first joint rotary motion.
Independently lead at two ends of the present invention in control type electrohydraulic proportional reversing valve, described plate body is square body.
Independently lead at two ends of the present invention in control type electrohydraulic proportional reversing valve, described electro-hydraulic proportion reversing valve also comprises and is sleeved on the sleeve that described pressure turns round the outside of coupling one end; One end of described sleeve is fixedly connected with described mounting plate, and the other end of described sleeve is connected with described housing.
Independently lead at two ends of the present invention in control type electrohydraulic proportional reversing valve, described sleeve is square hollow structure.
Independently lead at two ends of the present invention in control type electrohydraulic proportional reversing valve, described feedback rod is four.
Implement two ends of the present invention and independently lead control type electrohydraulic proportional reversing valve, there is following beneficial effect: described electro-hydraulic proportion reversing valve adopts the pressure of band feedback rod to turn round the structure of coupling, when rotational rate electromagnet obtains electric, the rotary motion of rotor makes Spool rotating, spool two ends pressure reduction makes spool move, first elastic helix part and the second elastic helix part produce axile displacement distance and will produce certain reset torque, and feedback rod also will produce certain reset torque, the first joint is jointly made to rotate back to initial angle, again balance is reached, adopting the pressure of band feedback rod to turn round coupling has without friction transmission, flexible, dynamic response is good, the advantage such as the little and processing and assembling of volume is easy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the internal structure schematic diagram that control type electrohydraulic proportional reversing valve is independently led at two ends that present pre-ferred embodiments provides;
Fig. 2 is the A portion enlarged view in Fig. 1;
Fig. 3 is the structural drawing that two pressures in the electro-hydraulic proportion reversing valve shown in Fig. 1 are turned round coupling and are connected with spool, rotor respectively;
Fig. 4 is the structural drawing that pressure in the electro-hydraulic proportion reversing valve shown in Fig. 1 turns round coupling;
Fig. 5 is the local structural graph that pressure in the electro-hydraulic proportion reversing valve shown in Fig. 1 turns round coupling;
Fig. 6 is that the pressure in the electro-hydraulic proportion reversing valve shown in Fig. 1 turns round the first elastic helix part of coupling and degree of the disturbing sketch of described second elastic helix part.
Embodiment
In order to there be understanding clearly to technical characteristics of the present invention, object and effect, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.In describing the invention, it is to be appreciated that term " first ", " second ", " left end ", " right-hand member " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, preferred embodiment of the present invention provides a kind of two ends independently to lead control type electrohydraulic proportional reversing valve, and it comprises selector valve 1, rotational rate electromagnet 2, pressure turn round coupling 3 and sleeve 4.
Particularly, as shown in Figure 1, Figure 2 and shown in Fig. 3, this selector valve 1 comprises valve body 11, and is arranged on the spool 12 in valve body 11.Two pairs of left end pressure holes, 121, the two pairs of left end pressure holes 121 this spool 12 left end shoulder offering radial symmetric distribution communicate with system pressure mouth P mouth, and A mouth and B mouth are respectively actuator port, and T mouth is oil return hydraulic fluid port.This spool 12 right-hand member offers and communicates with system pressure mouth P mouth equally with two pairs of right-hand member pressure holes, 123, two pairs of right-hand member pressure holes 123 of two pairs of left end pressure hole 121 symmetries.This valve body 11 inside offers leftly to be experienced passage 122 and rightly experiences passage 124, when electro-hydraulic proportion reversing valve is in the initial position of balance, this is left experiences passage 122 and two pairs of left end pressure holes 121 form the first transfer area, this is right experiences passage 124 and two pairs of right-hand member pressure holes 123 form the second transfer area, and the first transfer area is identical with the second transfer area.
This rotational rate electromagnet 2 is provided with two, and two rotational rate electromagnets 2 are connected to the two ends of selector valve 1.Each rotational rate electromagnet 2 comprises housing 21, and is arranged on the rotor 22 in housing 21.In the present embodiment, each rotational rate electromagnet 2 is turned round coupling 3 respectively by pressure and is connected with spool 12.This rotational rate electromagnet 2 is structure common in prior art, does not repeat them here.
Consult shown in Fig. 1 as Fig. 3, Fig. 4, Fig. 5, this pressure turns round coupling 3 for the rotation of the rotor 22 in rotational rate electromagnet 2 being become the rotary motion of the spool 12 in selector valve 1.Pressure is turned round coupling 3 and is comprised the first joint 31, second joint 32, first elastic helix part 33, second elastic helix part 34, mounting plate 35 and feedback rod 36.First joint 31, second joint 32, first elastic helix part 33, second elastic helix part 34, mounting plate 35 and feedback rod 36 are integrated, and its integrity structure is better, comparatively easy during electro-hydraulic proportion reversing valve described in assembly and disassembly.In this embodiment, spool 12, first joint 31, second joint 32, and rotor 22 is all coaxially arranged.
Wherein, consult shown in Fig. 1, Fig. 2 as Fig. 4, Fig. 5, this first joint 31 is fixedly connected with spool 12, and this second joint 32 is fixedly connected with rotor 22, the first joint 31 is the cylindrical body that external diameter is identical with the second joint 32.This first elastic helix part 33 and this second elastic helix part 34 are connected between the first joint 31 and the second joint 32, also namely the first elastic helix part 33 is connected to the first joint 31 both ends of the surface adjacent with the second joint 32, and the second elastic helix part 34 is connected to the first joint 31 both ends of the surface adjacent with the second joint 32 equally.In the present embodiment, first elastic helix part 33 is identical with the rotation direction of the second elastic helix part 34, and the first elastic helix part 33 and the projection of the second elastic helix part 34 respectively on the same end face of the first joint 31 are separated from each other, this is projected as fan annular, and two projections are arranged axisymmetricly.When rotor 22 rotates to drive the second joint 32 to rotate, the first elastic helix part 33 and the second elastic helix part 34 produce relative torsion to drive the first joint 31 rotary motion.
Consult shown in Fig. 5, Fig. 6, in the present embodiment, preferably, the first elastic helix part 33 and the second elastic helix part 34 are same structure, and inversion symmetry is arranged, and its mathematical model is as follows:
x＝φ·r
l＝ψ·r
Wherein:
φ: the first elastic helix part or central angle corresponding to the second elastic helix part end on projection;
R: the first elastic helix part or radius corresponding to the second elastic helix part end on projection;
The central angle that on ψ: the first elastic helix part or the second elastic helix part, any one section of heliconid end on projection is corresponding;
X: the arc length that central angle φ is corresponding;
L: the arc length that central angle ψ is corresponding;
The angle that θ: the first elastic helix part, the second cross section, elastic helix part x place turn over;
The amount of deflection at the w: the first elastic helix part, the second elastic helix part x place;
The dislocation distance of the δ: the first elastic helix part and the second elastic helix part.
In Fig. 6, Δ l is the variable quantity of the arc length that central angle ψ is corresponding.Above-mentioned mathematical model reaction pressure can turn round degree of the disturbing situation of change after the first elastic helix part 33 in coupling 3 and the second elastic helix part 34 launch preferably, the energy of deformation of the first elastic helix part 33 and the second elastic helix part 34 is fitted designing requirement more, and the effect that pressure turns round amplification reaches best.
As shown in Fig. 3, Fig. 4 and Fig. 5, this mounting plate 35 is fixedly mounted on valve body 11, turns round coupling 3 be fixedly mounted on selector valve 1 to make pressure.In the present embodiment, mounting plate 35 comprises the plate body 351 in square body, and be opened in plate body 351 center through hole 352, first joint 31 can in through hole 352 fore and aft motion.This feedback rod 36 is roughly direct rod shape structure, between its outer wall being connected to the first joint 31 and the inwall of through hole 352.In the present embodiment, feedback rod 36 is provided with multiple, and multiple feedback rod 36 is evenly distributed on the outer wall of the first joint 31.Preferably, feedback rod 36 is provided with four, and four feedback rods 36 are in crossing distribution.Adopt the structure of this feedback rod 36, when the first elastic helix part 33 and the second elastic helix part 34 produce axile displacement distance, first elastic helix part 33 and the second elastic helix part 34 will produce certain reset torque, this feedback rod 36 also produces certain reset torque, jointly make the first joint 31 rotate back to initial angle, turn round coupling 3 to make pressure and again reach state of equilibrium.
As shown in Figure 1, one end that this sleeve 4 suit pressure turns round coupling 3 is outside, and one end of sleeve 4 is fixedly connected with mounting plate 35, and the other end of sleeve 4 is connected with housing 21.In the present embodiment, sleeve 4 is square hollow structure.Adopt the structure of this sleeve 4, pressure can be made to turn round coupling 3 and be firmly connected between selector valve 1 and rotational rate electromagnet 2.
The specific works principle of described electro-hydraulic proportion reversing valve: as shown in Figure 3, system pressure mouth P, actuator port A and B, and return pressure mouth T.When both sides rotary magnet 2 all dead electricity time, spool 12 in zero-bit, pressure hole 121 and the transfer area experiencing passage 122, pressure hole 123 and the transfer area experiencing passage 124, these two transfer areas are identical, and the pressure at spool 12 two ends is identical, therefore spool 12 is in balance.When selector valve 1 right-hand member electromagnet 2 obtains electric, spool 12 will turn clockwise (from direction in the face of valve body 11 of right-hand member electromagnet 2), now the impression passage 122 of left end reduces with left end pressure hole 121 transfer area, the left cavity pressure of spool 12 declines, in like manner, now the impression passage 124 of right-hand member increases with right-hand member pressure hole 123 transfer area, and the right cavity pressure of spool 12 raises.In the uneven situation of left and right two cavity pressure, spool 12 will move to left, along with spool 12 moves to left, under pressure turns round the effect of coupling 3, spool 12 will be rotated counterclockwise again, and (from direction in the face of valve body 11 of right-hand member electromagnet 2) returns initial rest position, completes electrical-liquid control.In like manner, selector valve 1 left end electromagnet 2 obtains electric, and spool 12 will move to right, and complete electrical-liquid control.Compared with other electro-hydraulic proportion reversing valve, the pressure that pressure turns round coupling 3 is turned round transfer process and be there is not frictional force and gap, and the distance of dislocation or force amplifying function can be adjusted by the double-spiral structure parameter of change first elastic helix part 33 and the second elastic helix part 34.
In the present embodiment, similar between first elastic helix part 33 and the second elastic helix part 34 is in DNA double helix structure, this double-spiral structure axile displacement distance, the relation of approximate right-angled triangle two between right angle side and hypotenuse is formed between circumference arc length and structure length of run three, obviously, because the length of helix structure is constant, change when the second joint 32 makes the first joint 31 and the second joint 32 misplace by the push-and-pull action of rotor 22, the camber line distance of the first elastic helix part 33 and the second elastic helix part 34 then must be made to change, namely there is relative torsion in the first elastic helix part 33 and the second elastic helix part 34, thus drive the first joint 31 rotary motion.And the first elastic helix part 33 and the second elastic helix part 34 radial rotary are greatly, are enough to the rotary motion of the rotary motion of rotor 22 directly being transmitted as spool 12, feedback rod 36 can store moment of torsion simultaneously, when the current decreases, has force feedback effect.Therefore, the rotary motion of rotor 22 first becomes the rotation of spool 12, be moved under the left chamber of spool 12 and the unbalanced situation of right cavity pressure, then under pressure turns round the effect of coupling 3, counter-rotation is realized to initial angle, spool 12 has moved, reach equilibrium position, spool 12 displacement amount is directly proportional to the angle of rotary magnet 2.Compared with other electro-hydraulic proportion reversing valve, the pressure that pressure turns round coupling 3 is turned round transfer process and be there is not frictional force and gap, and the distance of dislocation or force amplifying function can be adjusted by the double-spiral structure parameter of change first elastic helix part 33 and the second elastic helix part 34.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (5)
1. control type electrohydraulic proportional reversing valve is independently led at two ends, it is characterized in that: comprise selector valve (1), two rotational rate electromagnets (2) being connected to described selector valve (1) two ends, and two pressures turn round coupling (3); Described selector valve (1) comprises valve body (11), and is arranged on the spool (12) in described valve body (11); Each described rotational rate electromagnet (2) comprises housing (21), and is arranged on the rotor (22) in described housing (21);
Described spool (12) left end shoulder offers two pairs of left end pressure holes (121) of radial symmetric distribution, two pairs of left end pressure holes (121) communicate with system pressure mouth P mouth; Described spool (12) right-hand member offers the two pair right-hand member pressure holes (123) symmetrical with two pairs of left end pressure holes (121), and two pairs of right-hand member pressure holes (123) communicate with system pressure mouth P mouth; Described valve body (11) inside offers leftly to be experienced passage (122) and rightly experiences passage (124), describedly leftly experience passage (122) and communicate with spool (12) left end sensitive cavity, describedly rightly experience passage (124) and communicate with spool (12) right-hand member sensitive cavity; When described electro-hydraulic proportion reversing valve is in the initial position of balance, describedly leftly experience passage (122) and two pairs of left end pressure holes (121) and form the first transfer area, describedly rightly experience passage (124) and two pairs of right-hand member pressure holes (123) and form the second transfer area, described first transfer area is identical with described second transfer area;
Each described rotational rate electromagnet (2) is turned round coupling (3) respectively by described pressure and is connected with described spool (12); Each described pressure is turned round coupling (3) and is comprised the first joint (31) be fixedly connected with described spool (12), the second joint (32) be fixedly connected with described rotor (22), is connected to the first elastic helix part (33) between described first joint (31) and described second joint (32) and the second elastic helix part (34), mounting plate (35), and multiple feedback rod (36); Described spool (12), described first joint (31), described second joint (32), and described rotor (22) is all coaxially arranged; Described first joint (31), described second joint (32), described first elastic helix part (33), described second elastic helix part (34), described mounting plate (35) and described feedback rod (36) are integrated;
Described first joint (31) and described second joint (32) are the identical cylindrical body of external diameter; Described first elastic helix part (33) is identical with the rotation direction of described second elastic helix part (34), and described first elastic helix part (33) and the projection of described second elastic helix part (34) respectively on the same end face of described first joint (31) are separated from each other; Described mounting plate (35) comprises the plate body (351) be fixedly mounted on described valve body (11), and is opened in the through hole (352) at described plate body (351) center; Described first joint (31) can at fore and aft motion in described through hole (352); Between the outer wall that each described feedback rod (36) is connected to described first joint (31) and the inwall of described through hole (352); Multiple described feedback rod (36) is evenly distributed on the outer wall of described first joint (31);
When described rotor (22) rotates to drive described second joint (32) to rotate, described first elastic helix part (33) and described second elastic helix part (34) produce relative torsion to drive the rotary motion of described first joint (31).
2. control type electrohydraulic proportional reversing valve is independently led at two ends according to claim 1, it is characterized in that: described plate body (351) is in square body.
3. control type electrohydraulic proportional reversing valve is independently led at two ends according to claim 1, it is characterized in that: described electro-hydraulic proportion reversing valve also comprises and is sleeved on the sleeve (4) that described pressure turns round the outside of coupling (3) one end; One end of described sleeve (4) is fixedly connected with described mounting plate (35), and the other end of described sleeve (4) is connected with described housing (21).
4. control type electrohydraulic proportional reversing valve is independently led at two ends according to claim 3, it is characterized in that: described sleeve (4) is square hollow structure.
5. control type electrohydraulic proportional reversing valve is independently led at the two ends according to any one of Claims 1 to 4, it is characterized in that: described feedback rod (36) is four.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048144.3A CN105526204B (en) | 2016-01-25 | 2016-01-25 | Independently lead control type electrohydraulic proportional reversing valve in both ends |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048144.3A CN105526204B (en) | 2016-01-25 | 2016-01-25 | Independently lead control type electrohydraulic proportional reversing valve in both ends |
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| CN105526204A true CN105526204A (en) | 2016-04-27 |
| CN105526204B CN105526204B (en) | 2018-02-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004892A (en) * | 2000-06-21 | 2002-01-09 | Yanmar Diesel Engine Co Ltd | Electronic control hydraulic governor |
| CN102913496A (en) * | 2012-10-24 | 2013-02-06 | 浙江工业大学 | Bi-directional full-bridge 2D electro-hydraulic proportional directional valve |
| CN103256401A (en) * | 2013-04-27 | 2013-08-21 | 浙江工业大学 | Prestretching-pretwisting type full-bridge 2D electro-hydraulic proportional directional valve |
| CN103711945A (en) * | 2013-09-17 | 2014-04-09 | 浙江工业大学 | Single-end pretensioning-pretwisting full-bridge 2D electro-hydraulic proportional directional valve |
| CN205298125U (en) * | 2016-01-25 | 2016-06-08 | 浙江申达机器制造股份有限公司 | Accuse formula electric -hydraulic proportional reversing valve is independently led at both ends |
-
2016
- 2016-01-25 CN CN201610048144.3A patent/CN105526204B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004892A (en) * | 2000-06-21 | 2002-01-09 | Yanmar Diesel Engine Co Ltd | Electronic control hydraulic governor |
| CN102913496A (en) * | 2012-10-24 | 2013-02-06 | 浙江工业大学 | Bi-directional full-bridge 2D electro-hydraulic proportional directional valve |
| CN103256401A (en) * | 2013-04-27 | 2013-08-21 | 浙江工业大学 | Prestretching-pretwisting type full-bridge 2D electro-hydraulic proportional directional valve |
| CN103711945A (en) * | 2013-09-17 | 2014-04-09 | 浙江工业大学 | Single-end pretensioning-pretwisting full-bridge 2D electro-hydraulic proportional directional valve |
| CN205298125U (en) * | 2016-01-25 | 2016-06-08 | 浙江申达机器制造股份有限公司 | Accuse formula electric -hydraulic proportional reversing valve is independently led at both ends |
Non-Patent Citations (1)
| Title |
|---|
| 左强: "半桥导控型2D电液比例换向阀的原理、理论分析及实验研究", 《中国博士学位论文全文数据库工程科技Ⅱ辑》 * |
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| CN105526204B (en) | 2018-02-16 |
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