CN213451836U - Multi-way valve and hydraulic distributor thereof - Google Patents
Multi-way valve and hydraulic distributor thereof Download PDFInfo
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- CN213451836U CN213451836U CN202022602417.9U CN202022602417U CN213451836U CN 213451836 U CN213451836 U CN 213451836U CN 202022602417 U CN202022602417 U CN 202022602417U CN 213451836 U CN213451836 U CN 213451836U
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- control valve
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- 239000003921 oil Substances 0.000 claims description 58
- 239000007788 liquid Substances 0.000 claims description 30
- 239000000346 nonvolatile oil Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005315 distribution function Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a multiple unit valve and hydraulic pressure distributor thereof, the multiple unit valve is including a control valve and a hydraulic pressure distributor that are connected, hydraulic pressure distributor includes distributor body and can follow the reciprocal straight line gliding distributor core of distributor body inner chamber, the distributor body is provided with along vertical interval arrangement and a plurality of distributor interfaces of projection coincidence in the cross section, the distributor core is provided with longitudinal flow channel and two distribution ports, longitudinal flow channel includes not communicating longitudinal flow channel first section and longitudinal flow channel second section, first distribution port communicates with longitudinal flow channel first section and corresponds with distributor first interface position, the second distribution port communicates with longitudinal flow channel second section and corresponds with distributor second interface position; the utility model discloses a multiple unit valve only adopts a control valve that is connected and a hydraulic pressure distributor that can connect a plurality of executive component, can realize multichannel hydraulic pressure distribution function, and the structure is greatly simplified, and is with low costs.
Description
Technical Field
The utility model relates to a hydraulic pressure technical field, concretely relates to hydraulic pressure distributor and adopt this hydraulic pressure distributor's multiple unit valve is particularly useful for agricultural machine and engineering machine tool.
Background
The multi-way valve is used for controlling the movement of a plurality of executing components (such as oil cylinders or oil motors), and is widely applied to agricultural machinery such as tractors and engineering machinery. The traditional multi-way valve is characterized in that other functional valves are communicated behind the multi-way valve, the multi-way valve comprises a plurality of connected three-position six-way valves, each valve of the multi-way valve consists of one three-position six-way valve, each three-position six-way valve is used for being connected with an executing component of a machine, the three-position six-way valves are driven to move by manual operation or two electromagnets, the three-position six-way valve shown in the figure 1 is in a middle functional state, and figures 2 and 3 are functional state diagrams of the three-position six-way valves in other two positions; the multi-way valve with the structure has basically the same valve structure, only one way valve can work at a time, when one way valve of the multi-way valve works, other function valves connected behind the multi-way valve are required to be in an unloading state, the structure of the multi-way valve is more and more complex and huge along with the increase of the number of the valve ways, particularly the structure of the three-position six-way valve driven by the electromagnet, and the whole multi-way valve is expensive due to the fact that two electromagnets are needed for each way.
Disclosure of Invention
In view of this, the first technical problem to be solved by the present invention is: a hydraulic distributor capable of connecting a plurality of execution components is provided, which is applied to a multi-way valve, simplifies the structure of the multi-way valve and reduces the cost.
Based on a general inventive concept, the second technical problem to be solved by the present invention is: the utility model provides a multiple unit valve adopts the utility model discloses a hydraulic pressure distributor simplifies the structure of multiple unit valve, reduce cost.
For solving the first technical problem, the technical scheme of the utility model is that: a hydraulic distributor, the hydraulic distributor comprising:
the distributor body is provided with a distributor body inner cavity and a plurality of distributor interfaces communicated with the distributor body inner cavity, the distributor interfaces are arranged at intervals along the longitudinal direction and are positioned on different cross sections, the projections of the distributor interfaces in the cross sections are overlapped, and the distributor interfaces comprise N first distributor interfaces and N second distributor interfaces, wherein N is greater than 1;
the distributor core can linearly slide along the inner cavity of the distributor body in a reciprocating manner, and is provided with a longitudinal flow passage and a distribution port; one end of the longitudinal flow channel is provided with a liquid inlet, the other end of the longitudinal flow channel is provided with a liquid outlet, and the longitudinal flow channel comprises a longitudinal flow channel first section and a longitudinal flow channel second section which are not communicated; said distribution openings including a first distribution opening and a second distribution opening that are not in communication, said first distribution opening being in communication with said longitudinal flow path first segment and corresponding to said distributor first interface location, said second distribution opening being in communication with said longitudinal flow path second segment and corresponding to said distributor second interface location; when the first distribution port is communicated with one first interface of the distributor, the second distribution port is communicated with one second interface of the distributor.
The following are a plurality of further improvements to the hydraulic distributor of the utility model:
the first section of the longitudinal flow channel and the second section of the longitudinal flow channel are separated through a flow channel partition.
The first interfaces of the N distributors are uniformly distributed along the longitudinal direction of the distributor body, and the second interfaces of the N distributors are uniformly distributed along the longitudinal direction of the distributor body.
The two ends of the distributor core extend out of the distributor body, a fixed oil sleeve is arranged on the periphery of one end of the distributor core, an oil sleeve inner ring groove and an oil sleeve oil port are formed in the fixed oil sleeve, and the oil sleeve oil port, the oil sleeve inner ring groove and the liquid outlet of the distributor core are communicated; or the oil sleeve oil port, the oil sleeve inner ring groove and the liquid inlet of the distributor core are communicated.
Wherein the distributor core is connected with a linear driving device.
The linear driving device comprises a linear power device, and the output end of the linear power device is connected with the distributor core.
The linear driving device further comprises a linear sensing element for detecting the linear displacement of the distributor core, and the linear sensing element and the linear power device are electrically connected with the electric control unit respectively.
In order to solve the second technical problem, the technical solution of the present invention is: a multiplex valve, comprising:
a control valve, said control valve including two control valve ports;
the hydraulic distributor is the above hydraulic distributor, the liquid inlet of the distributor core is connected with one of the control valve working ports, and the liquid outlet of the distributor core is connected with the other control valve working port.
The following is the further improvement of the multi-way valve of the utility model:
the control valve is a three-position six-way valve, a three-position four-way valve or a two-position four-way valve.
Wherein the control valve is an electromagnetic control valve; alternatively, the control valve is a manual control valve.
After the technical scheme is adopted, the beneficial effects of the utility model are as follows:
because the hydraulic distributor of the utility model comprises a distributor body and a distributor core which can slide linearly along the inner cavity of the distributor body in a reciprocating way, the distributor body is provided with a plurality of distributor interfaces which are arranged at intervals along the longitudinal direction and the projections of which are superposed in the cross section, and the plurality of distributor interfaces comprise N first distributor interfaces and N second distributor interfaces; the distributor core is provided with a longitudinal flow channel and two distribution ports, the longitudinal flow channel comprises a longitudinal flow channel first section and a longitudinal flow channel second section which are not communicated, the first distribution port is communicated with the longitudinal flow channel first section and corresponds to the first connector position of the distributor, and the second distribution port is communicated with the longitudinal flow channel second section and corresponds to the second connector position of the distributor; when the distributor body is connected with the executing component, one distributor first interface and one distributor second interface are connected with the executing component, and the distributor body is provided with N distributor first interfaces and N distributor second interfaces, so that one hydraulic distributor can be connected with a plurality of executing components; when one of the executing components is required to work, the distributor core is made to slide linearly and move a required distance relative to the distributor body, the first distribution port of the distributor core corresponds to the first interface position of one distributor, the second distribution port of the distributor core corresponds to the second interface position of one distributor, so that the liquid paths of the executing components are communicated, and the executing components are operated to complete corresponding component functions; because a hydraulic pressure distributor can connect a plurality of executive component, compare in the structure that an executive component of prior art need connect a tribit six-way valve and compare, under the prerequisite that possesses traditional multichannel hydraulic pressure distribution function, the utility model discloses a hydraulic pressure distributor structure simplifies greatly, and is compacter.
Because the utility model discloses a multiple unit valve only adopts a control valve and one that is connected the utility model discloses a hydraulic pressure distributor can realize the hydraulic pressure distribution function of traditional multiple unit valve, and the structure of multiple unit valve is constituteed and is greatly simplified, and is with low costs.
Drawings
FIG. 1 is a schematic view of a conventional multiple-way valve;
FIG. 2 is a functional state diagram of the three-position, six-way valve of FIG. 1 in the left position;
FIG. 3 is a functional state diagram of the three-position, six-way valve of FIG. 1 in the right position;
fig. 4 is a schematic sectional view of a hydraulic distributor according to a first embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view X-X of FIG. 4;
FIG. 6 is a schematic cross-sectional view of Y-Y of FIG. 4;
fig. 7 is a schematic structural view of a hydraulic distributor according to a second embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a multi-way valve according to a third embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a multi-way valve according to a fourth embodiment of the present invention;
fig. 10 is a schematic structural diagram of a multi-way valve according to a fifth embodiment of the present invention;
in the figure: i-a control valve; II-hydraulic distributor;
1-a dispenser body; 2-a dispenser core; 21-longitudinal flow passage first section; 211-a liquid outlet; 22-a second section of the longitudinal flow channel; 221-liquid inlet; 23-flow passage partition; 3-fixing the oil sleeve; 31-inner ring groove of oil jacket; 32-oil jacketed oil ports; 4-a linear drive; 41-a linear power device; 42-a linear sensing element; 43-an electronic control unit.
Detailed Description
The embodiments described below in connection with the drawings are exemplary only for the purpose of illustrating the present invention and should not be construed as limiting the present invention.
It should be noted that in the description of the present invention, unless otherwise specified or limited, the terms "connected," "connecting," and the like are to be construed broadly, and may be, for example, mechanical or electrical or hydraulic connections; the two elements may be directly connected or indirectly connected through an intermediate medium, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first" and "second" are used merely for convenience in description and are not to be construed as indicating or implying relative importance.
Example one
As shown in fig. 4, 5 and 6, the hydraulic distributor according to the first embodiment of the present invention includes: a dispenser body 1 and a dispenser core 2. The distributor body 1 is fixedly arranged, the distributor body 1 is provided with a distributor body inner cavity, and the distributor core 2 can slide linearly and reciprocally along the distributor body inner cavity.
The distributor body 1 is provided with a plurality of distributor interfaces which are respectively communicated with the inner cavity of the distributor body, the distributor interfaces are arranged at intervals along the longitudinal direction and are all positioned on different cross sections, the projections of the distributor interfaces in the cross sections are overlapped, the distributor interfaces comprise N (N is a natural number which is more than 1, and the N is a situation of 4) distributor first interfaces A1, A2, A3 and A4 and N distributor second interfaces B1, B2, B3 and B4, and the number of the distributor first interfaces is equal to that of the distributor second interfaces. Although the figure illustrates the case of N being 4, obviously, it is not limited to N being 4, and the value of N may be increased or decreased appropriately according to the actual hydraulic distribution requirement, for example, when there are more than 4 actuating components that need to be connected, N > 4; when less than 4 execution units need to be connected, 1< N < 4; the value of N is matched with the number of execution components needing to be connected.
The distributor core 2 is provided with longitudinal flow channels and distribution openings. One end of the longitudinal flow passage is provided with a liquid inlet 221, and the other end of the longitudinal flow passage is provided with a liquid outlet 211; under different working conditions, the functions of the liquid inlet 221 and the liquid outlet 211 can be interchanged, the liquid inlet 221 can be used as a liquid port, and the liquid outlet 211 can be used as a liquid inlet. The longitudinal flow passage comprises a first section 21 and a second section 22 which are separated by a flow passage partition 23 and are not communicated; the distribution openings include a first distribution opening a and a second distribution opening B which are not communicated, the first distribution opening a is communicated with the longitudinal flow channel first section 21, and the second distribution opening B is communicated with the longitudinal flow channel second section 22; the first dispensing opening a of the dispenser core 2 corresponds to the first dispenser interfaces a1, a2, A3, a4 of the dispenser body 1 in position, and the second dispensing opening B of the dispenser core 2 corresponds to the second dispenser interfaces B1, B2, B3, B4 of the dispenser body 1 in position. When the first distribution port A is communicated with the first interface A1 of the distributor, the second distribution port B is communicated with the second interface B1 of the distributor; similarly, when the first distribution port a is connected with the first distributor interface a2, the second distribution port B is connected with the second distributor interface B2; by analogy, when the first distribution port a is connected to the first distributor interface AN, the second distribution port B is connected to the second distributor interface BN.
The dispenser body 1 and the dispenser core 2 are not limited to the cylindrical shapes shown in fig. 5 and 6, and the dispenser body 1 and the dispenser core 2 may also be adapted to form a prism.
The optimized design is that the N first connectors A1, A2, A3 and A4 of the distributor are uniformly distributed along the longitudinal direction of the distributor body 1; the N second dispenser ports B1, B2, B3, B4 are uniformly distributed along the longitudinal direction of the dispenser body 1.
As shown in fig. 4, both ends of the distributor core 2 extend out of the distributor body 1, a fixed oil jacket 3 is fixedly arranged on the periphery of one end of the distributor core 2, the fixed oil jacket 3 is provided with an oil jacket inner ring groove 31 and an oil jacket oil port 32, and the oil jacket oil port 32, the oil jacket inner ring groove 31 and the liquid outlet 211 of the distributor core 2 are communicated with each other. In different states, when the liquid outlet 211 is used as a liquid inlet, the oil jacket oil port 32, the oil jacket inner ring groove 31 and the liquid inlet of the distributor core 2 are communicated.
The hydraulic distributor of the first embodiment has the advantages that the reciprocating linear sliding of the distributor core 2 can be driven manually, the structure is simple, and the cost is low.
Example two
As shown in fig. 7, the hydraulic distributor according to the second embodiment is basically the same as the hydraulic distributor according to the first embodiment, except that: the distributor core 2 is connected with a linear driving device 4, the reciprocating linear sliding of the distributor core 2 is realized by the driving of the linear driving device 4, the automation degree is high, and the control of the distributor core 2 is more accurate.
Wherein, the linear driving device 4 comprises a linear power device 41, and the output end of the linear power device 41 is connected with the distributor core 2. The linear power unit 41 may be a known expansion/contraction cylinder, a linear motor, or the like.
The linear driving device 4 further comprises a linear sensing element 42 for detecting the linear displacement of the dispenser core 2, the linear sensing element 42 can adopt a known linear sensor, and the linear sensing element 42 and the linear power device 41 are respectively and electrically connected with the electronic control unit 43 to form closed-loop control, so that the linear motion control of the dispenser core 2 is more accurate.
EXAMPLE III
As shown in fig. 8, the multi-way valve of the third embodiment of the present invention includes: a control valve I and a hydraulic pressure distributor II who is connected with control valve I, this hydraulic pressure distributor II adopts above the utility model discloses a hydraulic pressure distributor. Wherein the control valve I is provided with two control valve working ports A, B; the liquid inlet 221 of the distributor core 2 of the hydraulic distributor is connected with one control valve working port B through a pipeline B, and the liquid outlet 211 of the distributor core 2 is connected with the other control valve working port A through an oil sleeve inner ring groove 31, an oil sleeve oil port 32 and a pipeline A of the fixed oil sleeve 3.
Wherein, the control valve I can be an electromagnetic control valve; or may be a manually controlled valve.
In the third embodiment, the control valve I adopts a three-position six-way valve, which is suitable for the situation that other function valves are communicated behind the multi-way valve.
Example four
As shown in fig. 9, the multi-way valve of the fourth embodiment is basically the same as the multi-way valve of the third embodiment in terms of the structural principle, except that: the control valve I in the multi-way valve of the fourth embodiment adopts a three-position four-way valve, and is suitable for the situation that other functional valves are not connected behind the multi-way valve.
EXAMPLE five
As shown in fig. 10, the multi-way valve according to the fifth embodiment is basically the same as the multi-way valve according to the fourth embodiment in terms of the structural principle, and is also applicable to the case where no other function valve is connected at the rear of the multi-way valve, except that: a control valve I in the multi-way valve in the fifth embodiment adopts a two-position four-way valve, and the ascending and descending functions of oil cylinders and other execution components connected with a first connector of a distributor and a second connector of the distributor of the hydraulic distributor II are respectively realized through two positions (a left position and a right position) of a valve core of the two-position four-way valve; the neutral function is realized by the hydraulic distributor II, wherein one of the N distributor first ports of the distributor body 1 (for example, the distributor first port a4 in fig. 8) is used as a first T port, one of the N distributor second ports of the distributor body 1 (for example, the distributor second port B4 in fig. 8) is used as a second T port, both the first T port and the second T port are communicated with the oil return passage, and the neutral function is realized when the first distribution port a of the distributor core 2 is communicated with the first T port of the distributor body 1 and the second distribution port B of the distributor core 2 is communicated with the second T port of the distributor body 1.
Because the two-position four-way valve only has two working positions, especially when the two-position four-way valve is an electromagnetic control valve, the internal electric control structure can be realized only by one spring and one electromagnet, the structure is simple, and the cost is lower.
In the embodiments of the multi-way valve shown in fig. 8, 9 and 10, a control valve I is connected to a hydraulic distributor II with a linear drive 4 shown in fig. 7.
It is apparent that the multi-way valve of the present invention includes, but is not limited to, the above embodiments. The method can also be as follows: a control valve I is connected to the hydraulic distributor in the manual driving mode shown in fig. 4, and is not illustrated and described in detail herein.
When the multi-way valve is applied to agricultural machinery or engineering machinery such as a tractor and the like, taking an execution part as an oil cylinder as an example, a first distributor interface and a second distributor interface of the hydraulic distributor II are connected with an oil inlet and an oil return port of the oil cylinder; a hydraulic distributor II can be connected with a plurality of oil cylinders; when one of the oil cylinders is required to work, the distributor core 2 is linearly moved relative to the distributor body 1 by a required distance, so that the first distribution port A of the distributor core 2 corresponds to a first distributor interface position, and the second distribution port B of the distributor core 2 corresponds to a second distributor interface position, and the liquid paths of the oil cylinders are communicated. Taking the lifting function of the oil cylinder shown in fig. 8 as an example, the control valve I is operated, and the oil supply path is as follows: a control valve pressure oil port P → a control valve working port B → a pipeline B → a liquid inlet 221 of the distributor core 2 → a second section 22 of the longitudinal flow passage → a second distribution port B → a second distributor port B1 of the distributor body 1 → an oil inlet of the oil cylinder → an oil chamber of the oil cylinder, and pushes the piston to move to complete the corresponding oil cylinder lifting function; the oil return path is as follows: the cylinder oil outlet → the distributor first port a1 of the distributor body 1 → the first distribution port a of the distributor core 2 → the first section 21 of the longitudinal flow passage → the liquid outlet 211 of the distributor core 2 → the oil jacket inner ring groove 31 of the fixed oil jacket 3 → the oil jacket oil port 32 → the pipeline a → the control valve working port a → the control valve oil return port T.
The utility model discloses a multiple unit valve only adopts a control valve that is connected and a hydraulic pressure distributor that can connect a plurality of executive component, can realize the hydraulic pressure distribution function of traditional multiple unit valve, and the structure is greatly simplified, and is compacter, and is with low costs.
Claims (10)
1. A hydraulic distributor, characterized in that the hydraulic distributor comprises:
the distributor body is provided with a distributor body inner cavity and a plurality of distributor interfaces communicated with the distributor body inner cavity, the distributor interfaces are arranged at intervals along the longitudinal direction and are positioned on different cross sections, the projections of the distributor interfaces in the cross sections are overlapped, and the distributor interfaces comprise N first distributor interfaces and N second distributor interfaces, wherein N is greater than 1;
the distributor core can linearly slide along the inner cavity of the distributor body in a reciprocating manner, and is provided with a longitudinal flow passage and a distribution port; one end of the longitudinal flow channel is provided with a liquid inlet, the other end of the longitudinal flow channel is provided with a liquid outlet, and the longitudinal flow channel comprises a longitudinal flow channel first section and a longitudinal flow channel second section which are not communicated; said distribution openings including a first distribution opening and a second distribution opening that are not in communication, said first distribution opening being in communication with said longitudinal flow path first segment and corresponding to said distributor first interface location, said second distribution opening being in communication with said longitudinal flow path second segment and corresponding to said distributor second interface location; when the first distribution port is communicated with one first interface of the distributor, the second distribution port is communicated with one second interface of the distributor.
2. The hydraulic distributor of claim 1, wherein the first section of the longitudinal flow passage is separated from the second section of the longitudinal flow passage by a flow passage partition.
3. The hydraulic distributor according to claim 1, wherein N distributor first ports are uniformly distributed along a longitudinal direction of the distributor body, and N distributor second ports are uniformly distributed along the longitudinal direction of the distributor body.
4. The hydraulic distributor according to claim 1, wherein both ends of the distributor core extend out of the distributor body, a fixed oil sleeve is arranged on the periphery of one end of the distributor core, an oil sleeve inner annular groove and an oil sleeve oil port are arranged on the fixed oil sleeve, and the oil sleeve oil port, the oil sleeve inner annular groove and the liquid outlet of the distributor core are communicated; or the oil sleeve oil port, the oil sleeve inner ring groove and the liquid inlet of the distributor core are communicated.
5. A hydraulic distributor according to any one of claims 1 to 4 wherein a linear drive is connected to the distributor core.
6. A hydraulic distributor according to claim 5 wherein the linear drive means comprises a linear power means, the output of which is connected to the distributor core.
7. The hydraulic dispenser of claim 6, wherein said linear actuator further comprises a linear sensing element for sensing linear displacement of said dispenser core, said linear sensing element and said linear actuator being electrically connected to an electronic control unit, respectively.
8. A multiple-way valve, characterized in that the multiple-way valve comprises:
a control valve, said control valve including two control valve ports;
a hydraulic distributor as claimed in any one of claims 1 to 7, said inlet port of said distributor core being connected to one of said control valve ports and said outlet port of said distributor core being connected to the other of said control valve ports.
9. The multiplex valve as defined in claim 8 wherein said control valve is a three-position, six-way valve, or a three-position, four-way valve, or a two-position, four-way valve.
10. The multiplex valve as defined in claim 9 wherein said control valve is an electromagnetically controlled valve; alternatively, the control valve is a manual control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022602417.9U CN213451836U (en) | 2020-11-10 | 2020-11-10 | Multi-way valve and hydraulic distributor thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022602417.9U CN213451836U (en) | 2020-11-10 | 2020-11-10 | Multi-way valve and hydraulic distributor thereof |
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| CN213451836U true CN213451836U (en) | 2021-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022099892A1 (en) * | 2020-11-10 | 2022-05-19 | 博鼎精工智能科技(山东)有限公司 | Multi-way valve and hydraulic distributor thereof |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022099892A1 (en) * | 2020-11-10 | 2022-05-19 | 博鼎精工智能科技(山东)有限公司 | Multi-way valve and hydraulic distributor thereof |
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