CN204783909U - Crawler -mounted excavator integrated form cushion valve - Google Patents
Crawler -mounted excavator integrated form cushion valve Download PDFInfo
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- CN204783909U CN204783909U CN201520425180.8U CN201520425180U CN204783909U CN 204783909 U CN204783909 U CN 204783909U CN 201520425180 U CN201520425180 U CN 201520425180U CN 204783909 U CN204783909 U CN 204783909U
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- oil circuit
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Abstract
The utility model discloses a crawler -mounted excavator integrated form cushion valve, the cushion valve includes a valve body that is used for installing the case, valve body one side is equipped with the hydraulically controlled check valve that a plurality of is used for communicateing servo oil circuit of operating handle and the servo oil circuit of main valve, the valve body opposite side is equipped with the one -way throttle valve that a plurality of is used for communicateing servo oil circuit of operating handle and the servo oil circuit of main valve, and the hydraulically controlled check valve is communicated with each other through the inside oil duct of valve body with one -way throttle valve. The utility model provides the high shock -absorbing capacity of excavator has reduced and has blocked dead probability, has improved complete machine operation speed.
Description
Technical field
The utility model relates to a kind of trimmer valve, is specifically related to a kind of crawler excavator integrated form trimmer valve.
Background technique
The main valve plug of excavator main valve controls to be undertaken controlling by the servo pressure at spool two ends, servo pressure control bound core, relative to the position (stroke) of main valve, changes by the change of main valve plug position in main valve direction and size that hydraulic oil exports and then realizes the various work that excavator needs.In prior art, the buffering of excavator is generally just by installing one-way throttle valve at main valve servo pressure mouth, and its existence can reduce equipment speed, easily stuck phenomenon, reduces excavator operation efficiency.Generally, excavator uninterrupted working time is longer, and operating environment is comparatively severe, and traditional excavator one-way throttle valve has been difficult to meet the job requirements under various complex working condition.
Model utility content
The technical problems to be solved in the utility model is: provide.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of crawler excavator integrated form trimmer valve, described trimmer valve comprises one for installing the valve body of spool, described valve body side is provided with several for being communicated with the Pilot operated check valve of operating grip servo oil circuit and main valve servo oil circuit, described valve body opposite side is provided with several for being communicated with the one-way throttle valve of operating grip servo oil circuit and main valve servo oil circuit, and Pilot operated check valve and one-way throttle valve are communicated with each other by the oil duct of valve inner.
In a preferred embodiment of the present utility model, the number of described Pilot operated check valve is 4.
In a preferred embodiment of the present utility model, the number of described one-way throttle valve is 4.
In a preferred embodiment of the present utility model, described Pilot operated check valve and one-way throttle valve all adopt plug-in mounting valve type structure.
By technique scheme, the beneficial effects of the utility model are:
The utility model improves the shock-absorbing capacity of excavator, reduces stuck probability, improves overall operation speed.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is left view of the present utility model;
Fig. 2 is right elevation of the present utility model;
Fig. 3 is fundamental diagram of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 1 and Fig. 2, the crawler excavator integrated form trimmer valve that the utility model provides, it comprises a valve body 100.
Valve body 100, it is the spool for installing excavator main valve.
Offer several first mounting holes in the side of valve body 100, on each mounting hole, correspondence assigns a Pilot operated check valve 200, and the concrete number of Pilot operated check valve 200 can be 4, and Pilot operated check valve 200 is for being communicated with oil return circuit and main valve servo oil circuit.
The oil duct of valve body 100 inside can connect Pilot operated check valve 200 to connecting oil return circuit hydraulic fluid port and main valve servo oil circuit hydraulic fluid port, and hydraulic fluid port is connected to oil return circuit and main valve servo oil circuit by flexible pipe afterwards.
Several the second mounting holes are provided with at the opposite side of valve body 100, on each mounting hole, correspondence assigns an one-way throttle valve 300, the concrete number of one-way throttle valve 300 also can be 4, and one-way throttle valve 300 is for being communicated with operating grip servo oil circuit and main valve servo oil circuit.
Valve inner 100 oil duct can connect one-way throttle valve 300 to connecting handle servo oil circuit hydraulic fluid port and main valve servo oil circuit hydraulic fluid port, and hydraulic fluid port is connected to handle servo oil circuit and main valve servo oil circuit by flexible pipe afterwards.
Pilot operated check valve 200 and one-way throttle valve 300 all adopt plug-in mounting valve type structure.
See Fig. 3, here is specific works principle of the present utility model:
In figure, 1-3-1,1-3-2,1-3-3,1-3-4 are one-way throttle valve 300; 1-2-1,1-2-2,1-2-3,1-2-4 are Pilot operated check valve 200; A, C, E, G are the hydraulic fluid port of connecting handle servo oil circuit; B, D, F, H are the hydraulic fluid port connecting main valve servo oil circuit; T mouth is the hydraulic fluid port connecting oil return.A, B, C, D will be connected to a road main valve and a road handle servo oil circuit as one group according to requirements, and E, F, G, H will be connected to a road main valve and a road handle servo oil circuit as another group.
For A, B, C, D mono-group, when handle servo oil circuit inputs a road signal (handle release) by A mouth, hydraulic oil will be transported to B mouth (being connected to main valve servo oil circuit) by 1-3-1 (one-way throttle valve 300), and will open 1-2-2 (Pilot operated check valve 200); When B mouth has output, D mouth also will have oil return to enter, and oil return now enters T mouth (connection oil return) by 1-2-2.When handle discharges suddenly, A mouth no longer fuel feeding and A mouth is communicated with the oil return of handle servo oil circuit, reset due to valve core of main valve is produced larger pressure by B mouth at short notice, hydraulic oil is by the restriction by 1-3-1 in this case, oil return after throttling, reduce the reset speed of main valve spool, and then reduce complete machine impact.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a crawler excavator integrated form trimmer valve, it is characterized in that, described trimmer valve comprises one for installing the valve body of spool, described valve body side is provided with several for being communicated with the Pilot operated check valve of operating grip servo oil circuit and main valve servo oil circuit, described valve body opposite side is provided with several for being communicated with the one-way throttle valve of operating grip servo oil circuit and main valve servo oil circuit, and Pilot operated check valve and one-way throttle valve are communicated with each other by the oil duct of valve inner.
2. a kind of crawler excavator integrated form trimmer valve according to claim 1, is characterized in that, the number of described Pilot operated check valve is 4.
3. a kind of crawler excavator integrated form trimmer valve according to claim 1, is characterized in that, the number of described one-way throttle valve is 4.
4. a kind of crawler excavator integrated form trimmer valve according to claim 1, it is characterized in that, described Pilot operated check valve and one-way throttle valve all adopt plug-in mounting valve type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520425180.8U CN204783909U (en) | 2015-06-18 | 2015-06-18 | Crawler -mounted excavator integrated form cushion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520425180.8U CN204783909U (en) | 2015-06-18 | 2015-06-18 | Crawler -mounted excavator integrated form cushion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783909U true CN204783909U (en) | 2015-11-18 |
Family
ID=54523965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520425180.8U Active CN204783909U (en) | 2015-06-18 | 2015-06-18 | Crawler -mounted excavator integrated form cushion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224314A (en) * | 2016-08-26 | 2016-12-14 | 宁波诚天液压有限公司 | A kind of trimmer valve |
| CN106286477A (en) * | 2016-08-26 | 2017-01-04 | 宁波诚天液压有限公司 | A kind of trimmer valve of band hydraulic lock |
-
2015
- 2015-06-18 CN CN201520425180.8U patent/CN204783909U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224314A (en) * | 2016-08-26 | 2016-12-14 | 宁波诚天液压有限公司 | A kind of trimmer valve |
| CN106286477A (en) * | 2016-08-26 | 2017-01-04 | 宁波诚天液压有限公司 | A kind of trimmer valve of band hydraulic lock |
| CN106224314B (en) * | 2016-08-26 | 2018-06-05 | 宁波诚天液压有限公司 | A kind of trimmer valve |
| CN106286477B (en) * | 2016-08-26 | 2018-06-26 | 宁波诚天液压有限公司 | A kind of trimmer valve with hydraulic lock |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |