CN221299648U - Multi-gear hydraulic control valve - Google Patents
Multi-gear hydraulic control valve Download PDFInfo
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- CN221299648U CN221299648U CN202323126583.6U CN202323126583U CN221299648U CN 221299648 U CN221299648 U CN 221299648U CN 202323126583 U CN202323126583 U CN 202323126583U CN 221299648 U CN221299648 U CN 221299648U
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- control valve
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- 238000007789 sealing Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 3
- 239000003921 oil Substances 0.000 description 56
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a multi-gear hydraulic control valve, which comprises a main valve body, a shell, a plurality of first proportional control valves, a main pressure valve and a cable assembly, wherein the shell is fixedly connected with the main valve body; the main valve body is provided with an oil inlet, an oil return port and a plurality of working oil ports, the plurality of first proportional control valves share the same oil inlet, the plurality of first proportional control valves share the same oil return port, the plurality of working oil ports correspond to the plurality of first proportional control valves one by one, and the plurality of working oil ports of the main valve body are connected to the gear clutch through the corresponding first proportional control valves respectively. In the scheme, each gear clutch corresponds to a corresponding proportional control valve, so that an ideal gear shifting strategy is realized.
Description
Technical Field
The utility model relates to the field of hydraulic control of a transmission, in particular to a multi-gear hydraulic control valve.
Background
The transmission hydraulic control system controls the clutch and the brake of the hydraulic system by controlling the electromagnetic valve in the hydraulic system, so as to realize the control of gears. At present, in industries such as engineering, ships and the like, a power shift function is generally realized through a plurality of wet hydraulic clutches, and the engagement and the separation of the clutches are often controlled by adopting an electrohydraulic pilot type multi-gear control valve, namely, an electric signal is utilized to control the switch of a pilot valve, and then the switch of a main valve is controlled by the pilot valve, so that the flow direction and the pressure of hydraulic oil are controlled, and finally, the multi-gear control of the clutches is realized. However, the electrohydraulic pilot type multi-gear control valve cannot accurately and independently control the connecting and discharging pressure of each gear clutch, so that the quality of gear shifting of the transmission is not improved, and the production and the manufacture are difficult.
Disclosure of utility model
In order to solve the technical problems, the utility model aims to provide a multi-gear hydraulic control valve capable of accurately controlling each gear clutch.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The multi-gear hydraulic control valve comprises a main valve body and a shell, wherein the shell is fixedly connected with one side of the main valve body through a fastener, the multi-gear hydraulic control valve further comprises a plurality of first proportional control valves, a main pressure valve and a cable assembly, the main pressure valve is arranged on the main valve body and is positioned at one side far away from the shell, the plurality of first proportional control valves are sequentially inserted on the main valve body side by side from top to bottom, the plurality of first proportional control valves are positioned between the main valve body and the shell, the cable assembly is arranged on the shell, and the plurality of first proportional control valves are connected with the cable assembly; the main valve body is provided with an oil inlet, an oil return port and a plurality of working oil ports, the plurality of first proportional control valves share the same oil inlet, the plurality of first proportional control valves share the same oil return port, the plurality of working oil ports correspond to the plurality of first proportional control valves one by one, and the plurality of working oil ports of the main valve body are connected to the gear clutch through the corresponding first proportional control valves respectively.
Preferably, the main valve further comprises a sealing gasket, the sealing gasket is arranged at the joint of the main valve body and the shell, and the shell is in sealing connection with the main valve body through the sealing gasket.
Preferably, the valve further comprises a temperature sensor, wherein the temperature sensor is mounted on the main valve body and is positioned on one side away from the shell, and the temperature sensor is communicated with the oil inlet.
Preferably, the valve further comprises a screw plug, wherein the main valve body is provided with a standby oil port, and the screw plug is arranged in the standby oil port of the main valve body.
Preferably, the automatic transmission device further comprises an external valve body and a second proportional control valve, wherein the external valve body is fixedly arranged on the main valve body through a fastener, the second proportional control valve is inserted on the external valve body, a first oil port communicated with an oil inlet of the main valve body, a second oil port communicated with an oil return port of the main valve body and a third oil port connected to the gear clutch through the second proportional control valve are arranged on the external valve body, the second proportional control valve and the first proportional control valves share the same oil return port, and the second proportional control valve and the first proportional control valves share the same oil inlet.
Preferably, the connection part of the first oil port of the plug-in valve body and the main valve body and the connection part of the second oil port of the plug-in valve body and the main valve body are respectively connected in a sealing way through a sealing ring.
Preferably, the second proportional control valve is an electrohydraulic proportional control pressure reducing valve.
Preferably, the first proportional control valve is an electrohydraulic proportional control pressure reducing valve.
The utility model has the following beneficial effects due to the adoption of the technical scheme:
According to the utility model, an electrohydraulic proportional control mode is adopted, and each gear clutch corresponds to a corresponding proportional control valve, so that the gear clutch is accurately controlled, and an ideal gear shifting strategy is realized; the first proportional control valve and the second proportional control valve are cartridge valves, so that the volume is small, and the production consistency is high; the utility model designs the proportional control valve and the output interface separately, and has good product adaptability.
Drawings
FIG. 1 is a hydraulic schematic of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;
Fig. 4 is a schematic cross-sectional view of the present utility model.
Reference numerals:
1. A main pressure valve; 2. a temperature sensor; 3. a screw plug; 4. a sealing gasket; 5. a housing; 6. a cable assembly; 9. a first proportional control valve; 10. externally hung valve body; 11. a main valve body; 12. a seal ring; 90. a second proportional control valve; p: an oil inlet; t: an oil return port; k: a working oil port; A. b, C, D, E, F, G: a gear clutch.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The multi-gear hydraulic control valve comprises a main valve body 11, a shell 5, a plurality of first proportional control valves 9, a main pressure valve 1 and a cable assembly 6, wherein the shell 5 is fixedly connected with one side of the main valve body 11 through a fastener, the main pressure valve 1 is arranged on the main valve body 11 and is positioned on one side far away from the shell 5, the plurality of first proportional control valves 9 are sequentially inserted on the main valve body 11 from top to bottom, the plurality of first proportional control valves 9 are positioned between the main valve body 11 and the shell 5, the cable assembly 6 is arranged on the shell 5, and the plurality of first proportional control valves 9 are connected with the cable assembly 6; the main valve body 11 is provided with an oil inlet P, an oil return port T and a plurality of working oil ports K, the plurality of first proportional control valves 9 share the same oil inlet P, the plurality of first proportional control valves 9 share the same oil return port T, the plurality of working oil ports K are in one-to-one correspondence with the plurality of first proportional control valves 9, and the plurality of working oil ports K of the main valve body 11 are respectively connected to the gear clutch through the corresponding first proportional control valves 9.
The sealing gasket 4 is arranged at the joint of the main valve body 11 and the shell 5, and the shell 5 is in sealing connection with the main valve body 11 through the sealing gasket 4, so that oil in the shell 5 can be prevented from leaking outside.
Also included is a temperature sensor 2, said temperature sensor 2 being mounted on the main valve body 11 and located on the side remote from the housing 5, said temperature sensor 2 being in communication with the oil inlet P.
The main valve body 11 is provided with a standby oil port, and the screw plug 3 is arranged in the standby oil port of the main valve body 11.
In the utility model, the valve further comprises an external valve body 10 and a second proportional control valve 90, wherein the external valve body 10 is fixedly arranged on the main valve body 11 through a fastening piece, the second proportional control valve 90 is inserted on the external valve body 10, a first oil port used for communicating with an oil inlet P of the main valve body 11, a second oil port used for communicating with an oil return port T of the main valve body 11 and a third oil port used for connecting to a gear clutch through the second proportional control valve 90 are arranged on the external valve body 10, the second proportional control valve 90 and the first proportional control valves 9 share the same oil return port T, and the second proportional control valve 90 and the first proportional control valves 9 share the same oil inlet P.
The connection part of the first oil port of the externally-hung valve body 10 and the main valve body 11 and the connection part of the second oil port of the externally-hung valve body 10 and the main valve body 11 are respectively in sealing connection through a sealing ring 12, so that oil in an oil way can be prevented from seeping out from the connection part of the externally-hung valve body 10 and the main valve body 11.
The second proportional control valve 90 is an electrohydraulic proportional control pressure reducing valve, and the first proportional control valve 9 is an electrohydraulic proportional control pressure reducing valve.
In the utility model, as shown in fig. 1 and 4, there are A, B, C, D, E, F, G total 7 gear clutches, 6 first proportional control valves 9 corresponding to the gear clutches A, B, C, D, E, F one by one are inserted on the main valve body 11, an externally hung valve body 10 is installed on the main valve body 11, a second proportional control valve 90 corresponding to the gear clutch G is inserted on the externally hung valve body 10, 6 working oil ports of K1, K2, K3, K4, K5 and K6 are arranged on the main valve body 11, and the 6 working oil ports are connected to the corresponding gear clutches through the corresponding first proportional control valves 9 respectively; the third oil port on the plug-in valve body 10 is a working oil port K7, and the working oil port K7 is connected to the corresponding gear clutch G through the corresponding second proportional control valve 90. Therefore, each gear clutch corresponds to a corresponding proportional control valve, so that the gear clutches are precisely controlled, and an ideal gear shifting strategy is realized.
When the multi-gear hydraulic control valve is used, oil enters the main pressure valve 1 from the P port of the main valve body 11, and enters oil inlets of the 6 first proportional control valves 9 and the 1 second proportional control valves 90, when the control current of the 7 proportional control valves is zero, the 7 proportional control valves are in a cut-off state, the pressure of the P port can gradually rise to the set pressure of the main pressure valve 1, the set pressure is not less than the working pressure of a clutch, redundant oil overflows through the T port, and the system maintains a high-pressure state.
Under the control of a main program, after a certain or a plurality of proportional control valves receive a discharge receiving instruction, under the action of control current, oil enters an oil cylinder of a gear clutch communicated with the proportional control valves through a working oil port of the proportional control valves, and the pressure in the oil of the gear clutch can be controlled through the current in a coil of the proportional control valve, so that different gear shifting control strategy requirements of each gear clutch can be independently realized.
All features described in the description, the appended claims and the drawings, either alone or in any combination, are important features of the present utility model.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, variations, deletions of parts, additions of features, or re-combination of features may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, all such simple modifications, equivalents, and adaptations of the embodiments as may be made by the principles of the utility model and without departing from the scope of the utility model.
Claims (8)
1. The multi-gear hydraulic control valve comprises a main valve body (11) and a shell (5), wherein the shell (5) is fixedly connected with one side of the main valve body (11) through a fastener, and the multi-gear hydraulic control valve is characterized by further comprising a plurality of first proportional control valves (9), a main pressure valve (1) and a cable assembly (6), wherein the main pressure valve (1) is arranged on the main valve body (11) and is positioned at one side far away from the shell (5), the plurality of first proportional control valves (9) are sequentially inserted on the main valve body (11) side by side from top to bottom, the plurality of first proportional control valves (9) are positioned between the main valve body (11) and the shell (5), the cable assembly (6) is arranged on the shell (5), and the plurality of first proportional control valves (9) are all connected with the cable assembly (6); be equipped with an oil inlet (P), an oil return port (T) and a plurality of work hydraulic fluid port (K) on the main valve body (11), same oil inlet (P) is shared to a plurality of first proportional control valves (9), same oil return port (T) is shared to a plurality of first proportional control valves (9), a plurality of work hydraulic fluid port (K) and a plurality of first proportional control valves (9) one-to-one, a plurality of work hydraulic fluid ports (K) of the main valve body (11) are connected to gear clutch through corresponding first proportional control valve (9) respectively.
2. The multi-position hydraulic control valve according to claim 1, further comprising a gasket (4), wherein the gasket (4) is disposed at a junction of the main valve body (11) and the housing (5), and the housing (5) is sealingly connected to the main valve body (11) through the gasket (4).
3. The multi-position hydraulic control valve according to claim 1, further comprising a temperature sensor (2), said temperature sensor (2) being mounted on the main valve body (11) and being located on a side remote from the housing (5), said temperature sensor (2) being in communication with the oil inlet (P).
4. The multi-gear hydraulic control valve according to claim 1, further comprising a plug screw (3), wherein a backup oil port is provided on the main valve body (11), and the plug screw (3) is provided in the backup oil port of the main valve body (11).
5. The multi-gear hydraulic control valve according to claim 1, further comprising an externally hung valve body (10) and a second proportional control valve (90), wherein the externally hung valve body (10) is fixedly installed on the main valve body (11) through a fastener, the second proportional control valve (90) is inserted on the externally hung valve body (10), a first oil port for communicating with an oil inlet (P) of the main valve body (11), a second oil port for communicating with an oil return port (T) of the main valve body (11) and a third oil port for connecting to a gear clutch through the second proportional control valve (90), the second proportional control valve (90) and the plurality of first proportional control valves (9) share the same oil return port (T), and the second proportional control valve (90) and the plurality of first proportional control valves (9) share the same oil inlet (P).
6. The multi-gear hydraulic control valve according to claim 5, wherein the connection between the first oil port of the externally-hung valve body (10) and the main valve body (11) and the connection between the second oil port and the main valve body (11) are respectively connected in a sealing manner through a sealing ring (12).
7. The multi-position hydraulic control valve of claim 5, wherein the second proportional control valve (90) is an electro-hydraulic proportional control relief valve.
8. A multi-position hydraulic control valve according to claim 1, characterized in that the first proportional control valve (9) is an electrohydraulic proportional controlled pressure reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323126583.6U CN221299648U (en) | 2023-11-20 | 2023-11-20 | Multi-gear hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323126583.6U CN221299648U (en) | 2023-11-20 | 2023-11-20 | Multi-gear hydraulic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299648U true CN221299648U (en) | 2024-07-09 |
Family
ID=91740537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323126583.6U Active CN221299648U (en) | 2023-11-20 | 2023-11-20 | Multi-gear hydraulic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221299648U (en) |
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2023
- 2023-11-20 CN CN202323126583.6U patent/CN221299648U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant |