CN216447221U

CN216447221U - Linkage distribution valve and hydraulic system

Info

Publication number: CN216447221U
Application number: CN202123257231.5U
Authority: CN
Inventors: 蓝维玲
Original assignee: Foshan Leisha Model Technology Co ltd
Current assignee: Foshan Leisha Model Technology Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-05-06
Anticipated expiration: 2031-12-22

Abstract

The utility model provides a linkage distribution valve and a hydraulic system, and relates to the technical field of hydraulic control. The linkage distribution valve comprises an oil distribution disc, a valve body, a valve core, a transmission device and a driving device. The oil distribution disc is provided with a first oil duct, a second oil duct, a third oil duct and a fourth oil duct; the valve body is provided with a mounting hole penetrating through the valve body, and the valve body is fixedly connected with the oil distribution disc; the valve core is rotatably arranged in the mounting hole, an oil cavity is formed by the inner side wall of the mounting hole and the outer side wall of the valve core, a first oil groove and a second oil groove are formed in the valve core, the second oil groove is communicated with the oil cavity, and notches of the first oil groove and the second oil groove face the oil distribution disc respectively; the transmission device is rotationally arranged on the valve body and is in transmission connection with the valve core; the driving device is connected with the transmission device and used for driving the transmission device to rotate so as to drive the valve core to rotate. The linkage distribution valve provided by the utility model realizes that one driving device controls the communication and the blockage among the multiple oil passages, saves a plurality of driving devices and reduces the space requirement.

Description

Linkage distribution valve and hydraulic system

Technical Field

The utility model relates to the technical field of hydraulic control, in particular to a linkage distribution valve and a hydraulic system.

Background

At present, in most engineering machinery hydraulic oil circuit control, one hydraulic control mechanism is generally adopted to correspondingly control one oil circuit. However, in the case of a multi-channel hydraulic oil path, the hydraulic control mechanism occupies most of the space, and the arrangement of the hydraulic control mechanism becomes extremely difficult in a use scene with limited space. Therefore, how to realize the control of multiple oil paths by one hydraulic control mechanism to save space is a technical problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to overcome the disadvantages in the prior art, and the present application provides a linkage distribution valve, so as to solve the technical problem in the prior art that one path of oil path is correspondingly controlled by one hydraulic control mechanism, which results in a large space occupied by the hydraulic control mechanism under the condition of a multi-path hydraulic oil path.

The utility model provides the following technical scheme:

a linked dispensing valve comprising:

the oil distribution disc is provided with a first oil duct, a second oil duct, a third oil duct and a fourth oil duct;

the valve body is provided with a mounting hole penetrating through the valve body, and the valve body is fixedly connected with the oil distribution disc;

the valve core is rotatably arranged in the mounting hole, an oil cavity is formed by the inner side wall of the mounting hole and the outer side wall of the valve core, a first oil groove and a second oil groove are formed in the valve core, the second oil groove is communicated with the oil cavity, and notches of the first oil groove and the second oil groove face the oil distribution disc respectively;

the transmission device is rotationally arranged on the valve body and is in transmission connection with the valve core;

the driving device is connected with the transmission device and used for driving the transmission device to rotate so as to drive the valve core to rotate, so that the first oil duct is communicated with the third oil duct through the first oil groove, and the second oil duct is communicated with the fourth oil duct through the second oil groove; or the first oil channel is communicated with the fourth oil channel through the second oil groove, and the second oil channel is communicated with the third oil channel through the first oil groove.

In some embodiments of the present application, the transmission device includes a first transmission wheel, a second transmission wheel, and a third transmission wheel, the first transmission wheel is located between the second transmission wheel and the third transmission wheel, and is respectively engaged with the second transmission wheel and the third transmission wheel, and the second transmission wheel and the third transmission wheel are respectively fixedly connected with the top of the valve core.

In some embodiments of the present application, the transmission further includes a transmission shaft, the first transmission wheel is fixedly connected to the transmission shaft, and the transmission shaft is connected to the driving device.

In some embodiments of the present application, the driving device includes a driving member, a shaft coupling and a driving shaft, the driving member passes through the shaft coupling with the driving shaft is connected, the driving shaft is provided with a slot, the driving shaft can be inserted into the slot, so that the driving shaft with the driving shaft fixed connection.

In some embodiments of the present application, the drive is a servo motor.

In some embodiments of the present application, an annular groove is disposed at an end of the valve body close to the oil distribution disc, a first sealing member is disposed in the annular groove, the first sealing member abuts against a top surface of the oil distribution disc, a second sealing member is disposed at a top of the oil chamber, and the second sealing member is sleeved around the valve core and abuts against an inner side wall of the mounting hole and an end surface of the valve core respectively.

In some embodiments of the present application, a first oil outlet and a second oil outlet are provided at a bottom of the oil distribution disc, the first oil outlet is communicated with the first oil passage, the second oil outlet is communicated with the second oil passage, a first oil inlet and a second oil inlet are provided at a side portion of the oil distribution disc, the first oil inlet is communicated with the third oil passage, and the second oil inlet is communicated with the fourth oil passage.

In some embodiments of the present application, the linkage distribution valve further includes a mounting support, the transmission device is disposed in the mounting support, and the mounting support is connected with the valve body and the driving device, respectively.

In some embodiments of the present application, a receiving groove is disposed in the mounting support, and the receiving groove is used for receiving the transmission device.

The present application further provides a hydraulic system including a ganged distribution valve as described above.

The embodiment of the utility model has the following advantages:

the application provides a linkage distribution valve, through drive arrangement, transmission and case coordinated control transmission, and cooperate with a plurality of oil ducts of joining in marriage the food tray through two oil grooves of case, realized through the intercommunication between a drive arrangement control multichannel oil duct and blocked, a plurality of drive arrangement have been saved, thereby space demand has been reduced, oil circuit all the way through a hydraulic control mechanism correspondence control among the prior art has been avoided, lead to its technical problem who has occupied great space under the condition that has multichannel hydraulic pressure oil circuit.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 illustrates a perspective view of a linkage dispensing valve according to some embodiments of the present disclosure;

FIG. 2 illustrates a schematic cross-sectional view of a ganged dispensing valve in some embodiments of the present application;

FIG. 3 illustrates an exploded view of a gang dispensing valve in some embodiments of the present application;

FIG. 4 illustrates another perspective view of a ganged dispensing valve in some embodiments of the present disclosure;

FIG. 5 illustrates a schematic view of a spool of a ganged distribution valve in some embodiments of the present application;

FIG. 6 illustrates a schematic view of a drip pan of a coordinated dispensing valve in some embodiments of the present application;

FIG. 7 is a schematic view of a state of a valve spool and oil distribution pan of a coordinated distribution valve according to some embodiments of the present disclosure;

FIG. 8 illustrates another schematic view of a valve spool and oil distribution pan of a coordinated distribution valve in some embodiments of the present application;

FIG. 9 illustrates a schematic view of another state of a valve spool and oil distribution pan of a coordinated distribution valve in some embodiments of the present application.

Description of the main element symbols:

100-linked dispensing valves; 10-oil distribution disc; 101-a first oil passage; 102-a second oil passage; 103-a third oil passage; 104-a fourth oil passage; 105-a first oil outlet; 106-a second oil outlet; 107-a first oil inlet; 108-a second oil inlet; 20-a valve core; 201-a first oil sump; 202-a second oil sump; 30-a valve body; 301-mounting holes; 302-an oil chamber; 303-an annular groove; 304-a first seal; 305-a second seal; 40-a transmission; 401-a first drive wheel; 402-a second driving wheel; 403-a third transmission wheel; 404-a drive shaft; 4041-slot; 50-a drive device; 501-driving piece; 502-a coupling; 503-a drive shaft; 60-mounting a support; 601-a receiving tank.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, an embodiment of the present application provides a linkage distribution valve 100, which is mainly applied to a hydraulic system of mechanical engineering equipment, and the linkage distribution valve 100 includes an oil distribution pan 10, a valve body 30, a valve core 20, a transmission 40, and a driving device 50.

The oil distribution pan 10 is provided with a first oil passage 101, a second oil passage 102, a third oil passage 103, and a fourth oil passage 104. The valve body 30 is provided with a mounting hole 301 penetrating through the valve body, and the valve body 30 is fixedly connected with the oil distribution disc 10. The valve core 20 is rotatably installed in the installation hole 301, an oil chamber 302 is formed by the inner side wall of the installation hole 301 and the outer side wall of the valve core 20, a first oil groove 201 and a second oil groove 202 are arranged on the valve core 20, the second oil groove 202 is communicated with the oil chamber 302, and the notches of the first oil groove 201 and the second oil groove 202 face the oil distribution disc 10 respectively. The transmission device 40 is rotatably disposed on the valve body 30 and is in transmission connection with the valve core 20. The driving device 50 is connected to the transmission device 40, and is configured to drive the transmission device 40 to rotate, so as to drive the valve element 20 to rotate, so as to enable the first oil channel 101 to communicate with the third oil channel 103 through the first oil groove 201, and enable the second oil channel 102 to communicate with the fourth oil channel 104 through the second oil groove 202; or the first oil passage 101 is communicated with the fourth oil passage 104 through the second oil groove 202, and the second oil passage 102 is communicated with the third oil passage 103 through the first oil groove 201.

The linkage distribution valve 100 provided by the embodiment of the application drives the transmission device 40 to rotate through the driving device 50, so as to drive the valve core 20 to rotate, so that the first oil groove 201 and the second oil groove 202 on the valve core 20 are matched with a plurality of oil passages on the oil distribution disc 10, and therefore the oil passages are communicated with each other through the oil grooves, or the end faces of the valve core 20 are blocked. The multi-channel oil passage communication and blocking device has the advantages that the multi-channel oil passage communication and blocking are achieved, the multi-channel oil passage communication and blocking are controlled through one driving device 50, a plurality of driving devices 50 are saved, the size is reduced, the space requirement is reduced, and the arrangement performance of the multi-channel oil passage communication and blocking device in a use scene with limited space is improved.

Wherein, the valve body 30 is provided with a mounting hole 301 penetrating through the valve body, and the valve body 30 is fixedly connected with the oil distribution disc 10. The valve spool 20 is rotatably installed in the installation hole 301 of the valve body 30, and one end near the oil distribution pan 10 is provided with a first oil groove 201 and a second oil groove 202 which are matched with the first oil passage 101, the second oil passage 102, the third oil passage 103, and the fourth oil passage 104. First oil groove 201 and second oil groove 202 set up along the circumference interval of case 20, and first oil groove 201 and second oil groove 202 are the arc wall, the intercommunication between oil duct and the oil duct of being convenient for. The ports of the first oil channel 101, the second oil channel 102, the third oil channel 103 and the fourth oil channel 104 are disposed on the end surface of the oil distribution disc 10 close to the valve core 20, and all face the valve core 20, and the notches of the first oil groove 201 and the second oil groove 202 all face the oil distribution disc 10, so that connection with different oil grooves on the valve core 20 is realized by rotating the valve core 20. An oil chamber 302 is formed by the outer side wall of the valve core 20 and the inner side wall of the mounting hole 301, the valve core 20 is further provided with a through hole and a through groove, and the second oil groove 202 is communicated with the oil chamber 302 through the through groove and the through hole. The driving device 50 drives the transmission device 40 to drive the valve core 20 to rotate, so that the oil passages are communicated with one another through the oil grooves, one driving device 50 controls the communication and the blocking of multiple oil passages, the number of the driving devices 50 is reduced, and the size is reduced.

Specifically, the driving device 50 drives the transmission device 40 to rotate, the transmission device 40 is connected with the valve core 20 to drive the valve core 20 to rotate, so that the first oil channel 101, the second oil channel 102, the third oil channel 103 and the fourth oil channel 104 on the oil distribution disc 10 are connected with different oil grooves on the valve core 20, communication and blocking among a plurality of oil channels are controlled in a linkage mode through one driving device 50, and space is saved.

As shown in fig. 7, when the driving device 50 is closed, the valve spool 20 is in the initial position, and the first oil passage 101, the second oil passage 102, the third oil passage 103 and the fourth oil passage 104 are not communicated with each other, and the hydraulic actuator does not perform any related action. The first oil passage 101 and the second oil passage 102 are blocked by the end surface of the valve spool 20, the third oil passage 103 is communicated with the first oil groove 201 of the valve spool 20, and the fourth oil passage 104 is communicated with the second oil groove 202 of the valve spool 20 and is communicated with the oil chamber 302. Specifically, the first oil channel 101 and the second oil channel 102 are both oil outlet channels and are connected to a hydraulic actuator, and the third oil channel 103 and the fourth oil channel 104 are both oil inlet channels and are connected to a hydraulic oil tank or a hydraulic oil pump.

As shown in fig. 8, when the driving device 50 drives the transmission device 40 to rotate forty-five degrees counterclockwise, the valve core 20 is driven to rotate forty-five degrees counterclockwise, at this time, the first oil channel 101 and the third oil channel 103 are communicated with each other through the first oil groove 201 of the valve core 20, the second oil channel 102 and the fourth oil channel 104 are communicated with each other through the second oil groove 202 of the valve core 20, and the hydraulic actuator performs the relevant action. Specifically, the first oil channel 101 and the second oil channel 102 are both oil outlet channels and are connected to a hydraulic actuator, and the third oil channel 103 and the fourth oil channel 104 are both oil inlet channels and are connected to a hydraulic oil tank or a hydraulic oil pump.

As shown in fig. 9, when the driving device 50 drives the transmission device 40 to rotate clockwise by forty-five degrees, the valve spool 20 is driven to rotate clockwise by forty-five degrees, at this time, the first oil passage 101 and the fourth oil passage 104 are communicated with each other through the second oil groove 202 of the valve spool 20, the second oil passage 102 and the third oil passage 103 are communicated with each other through the first oil groove 201 of the valve spool 20, and the hydraulic actuator performs the relevant action. Specifically, the first oil channel 101 and the second oil channel 102 are both oil outlet channels and are connected to a hydraulic actuator, and the third oil channel 103 and the fourth oil channel 104 are both oil inlet channels and are connected to a hydraulic oil tank or a hydraulic oil pump.

As shown in fig. 2, 3 and 4, in an embodiment of the present application, optionally, the transmission device 40 includes a first transmission wheel 401, a second transmission wheel 402 and a third transmission wheel 403, the first transmission wheel 401 is located between the second transmission wheel 402 and the third transmission wheel 403, and is respectively engaged with the second transmission wheel 402 and the third transmission wheel 403, and the second transmission wheel 402 and the third transmission wheel 403 are respectively fixedly connected with the top of the valve core 20.

In this embodiment, the first driving wheel 401 is located between the second driving wheel 402 and the third driving wheel 403, and is meshed with the second driving wheel 402 and the third driving wheel 403 respectively, so that the first driving wheel 401 drives the second driving wheel 402 and the third driving wheel 403 to rotate respectively. The second driving wheel 402 and the third driving wheel 403 are respectively fixedly connected with the top of the valve core 20, and the fixed connection mode can be screw fastening connection or key connection, so as to drive the valve core 20 to synchronously rotate. Specifically, the first transmission wheel, the second transmission wheel 402 and the third transmission wheel 403 are all gears, so that the stability and accuracy of transmission are improved, and the transmission device 40 is compact in structure due to gear transmission, and the space is further reduced.

As shown in fig. 2, 3 and 4, in the above embodiment of the present application, optionally, the transmission device 40 further includes a transmission shaft 404, the first transmission wheel 401 is fixedly connected to the transmission shaft 404, and the transmission shaft 404 is connected to the driving device 50.

In this embodiment, the first driving wheel 401 is fixedly connected to an end of the driving shaft 404 far from the driving device 50. One end of the transmission shaft 404 close to the driving device 50 is fixedly connected to the driving device 50, so that the driving device 50 drives the transmission shaft 404 to rotate, the first transmission wheel 401 is driven to rotate, the second transmission wheel 402, the third transmission wheel 403 and the valve core 20 are driven to synchronously rotate, and linkage transmission is achieved.

As shown in fig. 2 and fig. 4, in the above embodiment of the present application, optionally, the driving device 50 includes a driving member 501, a coupler 502 and a driving shaft 503, the driving member 501 is connected to the driving shaft 503 through the coupler 502, the driving shaft 404 is provided with a slot 4041, and the driving shaft 503 can be inserted into the slot 4041, so that the driving shaft 503 is fixedly connected to the driving shaft 404.

In this embodiment, the coupling 502 is connected to the output end of the driving member 501 and the driving shaft 503 respectively, so that the driving member 501 rotates the driving shaft 503. Specifically, transmission 40's transmission shaft 404 is provided with slot 4041, and drive arrangement 50's drive shaft 503 can insert in slot 4041 for drive shaft 503 and transmission shaft 404 fixed connection realize synchronous rotation, and fixed connection's mode can be for screw fastening connects, also can be for setting up a plurality of spiral beads on the drive shaft 503, and transmission shaft 404 sets up a plurality of recesses corresponding with a plurality of spiral beads, realizes fixed connection.

In the above embodiment of the present application, as shown in fig. 4, the driving member 501 is optionally a servo motor.

In this embodiment, the driving member 501 is a servo motor, the servo motor can control the speed, the position accuracy is very accurate, the voltage signal can be converted into the torque and the rotating speed to drive the control object, the driving shaft 503, the transmission shaft 404 and the valve core 20 can be precisely controlled to rotate clockwise or counterclockwise by forty-five degrees, and the precise control is realized.

As shown in fig. 2, 3 and 4, in the above embodiment of the present application, optionally, an annular groove 303 is disposed at one end of the valve body 30 close to the oil distribution disc 10, a first sealing member 304 is disposed in the annular groove 303, the first sealing member 304 abuts against a top surface of the oil distribution disc 10, a second sealing member 305 is disposed at a top portion of the oil chamber 302, and the second sealing member 305 is sleeved around the valve core 20 and abuts against an inner side wall of the mounting hole 301 and an end surface of the valve core 20, respectively.

In this embodiment, an annular groove 303 is disposed at one end of the valve body 30 close to the oil distribution pan 10, a first sealing member 304 is disposed in the annular groove 303, a second sealing member 305 is disposed at the top of the oil chamber 302, and the second sealing member 305 is sleeved on the circumferential direction of the valve core 20. The first sealing element 304 abuts against the top surface of the oil distribution disc 10, and the second sealing element 305 is located at the top of the oil chamber 302 and abuts against the inner side wall of the mounting hole 301 and the end surface of the valve core 20, so that the oil chamber 302 is sealed, hydraulic oil leakage is prevented, the hydraulic actuator is caused to generate uncontrolled motion or cause pollution, and the sealing performance of the linkage distribution valve 100 is improved.

As shown in fig. 6, in the above-mentioned embodiment of the present application, optionally, a first oil outlet 105 and a second oil outlet 106 are provided at the bottom of the oil distribution pan 10, the first oil outlet 105 is communicated with the first oil passage 101, the second oil outlet 106 is communicated with the second oil passage 102, a first oil inlet 107 and a second oil inlet 108 are provided at the side of the oil distribution pan 10, the first oil inlet 107 is communicated with the third oil passage 103, and the second oil inlet 108 is communicated with the fourth oil passage 104.

In the present embodiment, the first oil outlet 105 and the second oil outlet 106 are disposed at the bottom of the oil distribution pan 10, and the first oil inlet 107 and the second oil inlet 108 are disposed at the side of the oil distribution pan 10, and are spatially convenient to be connected with the corresponding oil passages through oil nipples. The first oil outlet 105 and the second oil outlet 106 are respectively and correspondingly communicated with the first oil channel 101 and the second oil channel 102, the first oil inlet 107 and the second oil inlet 108 are respectively and correspondingly communicated with the third oil channel 103 and the fourth oil channel 104, and the first oil inlet 107 and the second oil inlet 108 are communicated with a hydraulic oil tank or a hydraulic oil pump.

As shown in fig. 1, 2 and 3, in an embodiment of the present application, optionally, the linkage distribution valve 100 further includes a mounting seat 60, the transmission device 40 is disposed in the mounting seat 60, and the mounting seat 60 is connected to the valve body 30 and the driving device 50, respectively.

In the embodiment, the transmission device 40 is arranged in the mounting seat 60, so that the first transmission wheel 401, the second transmission wheel 402, the third transmission wheel 403 and the transmission shaft 404 of the transmission device 40 are protected, the transmission device 40 is prevented from being interfered by external factors or corroded, and the service life of the transmission device 40 is prolonged. Wherein, the mounting support 60 is also provided with a through hole matched with the top of the valve core 20, and the valve core 20 can rotate in the through hole, thereby further improving the transmission stability. Specifically, the mounting bracket 60 is connected to the valve body 30 and the driving device 50, respectively, and is connected to the oil distribution pan 10, so as to realize an overall stable connection of the linked distribution valve 100.

As shown in fig. 2 and fig. 3, in the above embodiment of the present application, optionally, a receiving groove 601 is disposed in the mounting seat 60, and the receiving groove 601 is used for receiving the transmission device 40.

In this embodiment, a receiving groove 601 is disposed in the mounting seat 60 and is adapted to the transmission device 40, and the transmission device 40 is disposed in the receiving groove 601 to provide a receiving space for the transmission device 40.

The embodiment of the present application further provides a hydraulic system, which includes the linkage distribution valve 100 in the above embodiment.

The hydraulic system has the linkage distribution valve 100 in any of the above embodiments, so that all the beneficial effects of the linkage distribution valve 100 are achieved, and the detailed description is omitted here.

To sum up, the linkage distribution valve that this application provided, through drive arrangement, transmission and case coordinated control transmission to and two oil grooves through the case cooperate with a plurality of oil ducts of joining in marriage the food tray, realized through the intercommunication between a drive arrangement control multichannel oil duct and blocked, saved a plurality of drive arrangement, thereby reduced the space demand, avoided among the prior art to correspond control oil circuit all the way through a hydraulic control mechanism, lead to it to occupy the technical problem in great space under the condition that has multichannel hydraulic pressure oil circuit.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A linked dispensing valve, comprising:

2. The linkage dispensing valve according to claim 1, wherein the transmission device comprises a first transmission wheel, a second transmission wheel and a third transmission wheel, the first transmission wheel is located between the second transmission wheel and the third transmission wheel and is respectively engaged with the second transmission wheel and the third transmission wheel, and the second transmission wheel and the third transmission wheel are respectively fixedly connected with the top of the valve core.

3. The coordinated dispensing valve of claim 2 wherein said transmission means further comprises a transmission shaft, said first transmission wheel being fixedly connected to said transmission shaft, said transmission shaft being connected to said driving means.

4. The linked dispensing valve of claim 3, wherein the drive means includes a drive member, a coupling, and a drive shaft, the drive member being connected to the drive shaft by the coupling, the drive shaft being provided with a slot into which the drive shaft can be inserted to fixedly connect the drive shaft to the drive shaft.

5. The linked dispensing valve of claim 4 wherein said drive member is a servo motor.

6. The linkage distribution valve according to any one of claims 1 to 5, wherein an annular groove is formed at one end of the valve body close to the oil distribution disc, a first sealing member is arranged in the annular groove and abuts against the top surface of the oil distribution disc, a second sealing member is arranged at the top of the oil chamber, and the second sealing member is sleeved on the circumferential direction of the valve core and abuts against the inner side wall of the mounting hole and the end surface of the valve core respectively.

7. The linkage distribution valve according to claim 6, wherein a first oil outlet and a second oil outlet are provided at the bottom of the oil distribution disc, the first oil outlet is communicated with the first oil passage, the second oil outlet is communicated with the second oil passage, a first oil inlet and a second oil inlet are provided at the side of the oil distribution disc, the first oil inlet is communicated with the third oil passage, and the second oil inlet is communicated with the fourth oil passage.

8. The coordinated dispensing valve of claim 1, further comprising a mounting seat, wherein said transmission device is disposed in said mounting seat, and said mounting seat is connected with said valve body and said driving device, respectively.

9. The linked distribution valve of claim 8, wherein a receiving slot is provided in the mounting support for receiving the actuator.

10. A hydraulic system comprising a gang distribution valve as claimed in any one of claims 1 to 9.