CN217080928U - Hydraulic system for winch operation of rescue vehicle - Google Patents
Hydraulic system for winch operation of rescue vehicle Download PDFInfo
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- CN217080928U CN217080928U CN202220490926.3U CN202220490926U CN217080928U CN 217080928 U CN217080928 U CN 217080928U CN 202220490926 U CN202220490926 U CN 202220490926U CN 217080928 U CN217080928 U CN 217080928U
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- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a rescue vehicle capstan winch operation hydraulic system, including the capstan winch of saving oneself, drag the rescue capstan winch, the control valve group, the sensitive multiple unit valve of load and the sensitive variable plunger pump of load, the capstan winch of saving oneself and drag the rescue capstan winch and be connected with the sensitive variable plunger pump of load, supply oil for the capstan winch of saving oneself and drag the rescue capstan winch by the sensitive variable plunger pump of load, and receive the return oil of system, the sensitive multiple unit valve of load one end is connected with the sensitive variable plunger pump of load, the other end is connected with the capstan winch of saving oneself, drag the rescue capstan winch, realize the control of the independent operation of the capstan winch of saving oneself or drag the rescue by controlling the sensitive multiple unit valve of load respectively; the control valve group is installed between the load-sensitive multi-way valve and the self-rescue winch and the hauling winch, the oil ways of the self-rescue winch and the hauling winch are communicated through the control valve group, and then the opening degree of the load-sensitive multi-way valve is controlled to realize the combined operation of the self-rescue winch and the hauling winch. The utility model discloses can switch the state of two independent or combined operation of capstan winch on the rescue carriage according to actual need to for it provides sufficient hydraulic drive power.
Description
Technical Field
The utility model relates to the field of hydraulic technology, especially, relate to a rescue vehicle capstan winch operation hydraulic system.
Background
When a wheeled vehicle fails to normally run due to a fault or an accident, a rescue vehicle is usually required to drag the failed vehicle away from a traffic lane or return the failed vehicle to a repair shop for road dredging or timely factory repair. The existing rescue vehicle is usually provided with a self-rescue winch and a rescue winch, the hydraulic system is used as driving force to control the rope take-up or release of the two winches, when the self-rescue winch or the rescue winch works independently, the hydraulic system can provide sufficient driving force for one of the winches, but when the two winches work jointly, the flow of the hydraulic system cannot be well distributed to the self-rescue winch and the rescue winch, the hydraulic driving force of one winch is sufficient usually, and the hydraulic driving force of the other winch is insufficient, the efficiency of rescue work is greatly influenced, and in addition, the existing hydraulic system cannot be used for switching states between the independent work and the combined work of the two winches quickly.
Disclosure of Invention
To the above problem, the utility model aims to solve the technical problem that a rescue vehicle capstan winch operation hydraulic system is provided, this hydraulic system can switch the state of two independent or joint jobs of capstan winch on the rescue vehicle according to actual need to provide sufficient hydraulic drive power for it.
The technical proposal of the utility model is that a winch operation hydraulic system of a rescue vehicle comprises a self-rescue winch, a control valve group, a load sensitive multi-way valve and a load sensitive variable plunger pump,
the self-rescue winch and the hauling winch are connected with the load sensitive variable plunger pump, the load sensitive variable plunger pump supplies oil to the self-rescue winch and the hauling winch and receives return oil of the system,
one end of the load sensitive multi-way valve is connected with the load sensitive variable plunger pump, the other end of the load sensitive multi-way valve is connected with the self-rescue winch and the hauling winch, and the self-rescue winch or the hauling winch can be controlled to operate independently by controlling the load sensitive multi-way valve respectively;
the control valve group is installed between the load-sensitive multi-way valve and the self-rescue winch and the hauling winch, oil ways of the self-rescue winch and the hauling winch are communicated through the control valve group, and then the opening degree of the load-sensitive multi-way valve is controlled to realize the combined operation of the self-rescue winch and the hauling winch.
Further, the load-sensitive multi-way valve is a PVG32 load-sensitive proportional multi-way valve with a pressure compensator arranged in front.
Further, the control valve group comprises normally closed bidirectional stop valves, valve blocks and electromagnets, wherein the two normally closed bidirectional stop valves are connected through pipelines, and the electromagnets are installed on each connected pipeline.
Further, when the self-rescue winch and the hauling winch work independently, the electromagnets DT1 and DT2 on the control valve set lose power, the control valve set does not work, and the direction and the opening degree of the two paths of load sensitive multi-way valves are controlled respectively, so that the rope winding and unwinding of the self-rescue winch or the hauling winch can be controlled in the independent work.
Further, when the self-rescue winch and the hauling winch work in a combined mode, the electromagnets DT1 and DT2 of the control valve set are powered on simultaneously, the port A of the self-rescue winch is communicated with the port A of the hauling winch, the port B of the self-rescue winch is communicated with the port B of the hauling winch, when the two winches work in a combined mode to take up ropes, the opening degrees of the two paths of load sensitive multi-way valves are controlled simultaneously, and the rope taking-up speed during the combined work of the two winches can be controlled.
Furthermore, when the self-rescue winch and the towing winch work in a combined mode and the flow rate does not reach a saturation state, the two loops realize automatic distribution of the flow rate through the control valve group, the flow rate is guaranteed to be automatically distributed to the winch with a smaller load, the two winches work simultaneously, and the use requirement of the winch device of the rescue vehicle for combined operation is met; when the flow reaches a saturation state, the two loops realize automatic distribution of the flow through the control valve group, the flow is guaranteed to be automatically distributed to the winch with a smaller load, and the use requirement of the winch combined operation of the rescue vehicle is met.
Based on the technical scheme, the utility model discloses compare with prior art and have following beneficial effect at least:
the utility model discloses simple structure carries out independent or combined operation's state to the capstan winch of saving oneself or dragging and rescuing on the rescue carriage through the valve unit and carries out quick effectual switching to can automatic allocation to the less capstan winch of load when hydraulic flow saturation, guarantee rescue carriage combined operation's operation requirement provides the biggest rescue power for the rescue carriage, hydraulic system control is convenient, the operation is reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of the pipeline conduction of the control valve set during the combined operation of the two winches of the present invention.
In the figure: 1-a control valve group, 2-a load sensitive multi-way valve, 3-a load sensitive variable plunger pump, 4-a self-rescue winch and 5-a rescue winch.
Detailed Description
The technical solutions of the embodiments of the present invention are described below in detail and completely with reference to the accompanying drawings, so that those skilled in the art can better understand the technical solutions of the present invention. The embodiments described herein are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and the like are to be construed broadly and can refer to, for example, communication between two elements or the interaction between two elements unless otherwise expressly stated or limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 and fig. 2, for the utility model provides a rescue vehicle winch operation hydraulic system's schematic embodiment, in this schematic embodiment, rescue vehicle winch operation hydraulic system includes self-rescue winch 4, drags rescue winch 5, valves 1, the sensitive multiple unit valve 2 of load and the sensitive variable plunger pump 3 of load.
The self-rescue winch 4 and the hauling winch 5 are connected with the load sensitive variable plunger pump 3, the load sensitive variable plunger pump 3 provides hydraulic oil for the self-rescue winch 4 and the hauling winch 5, and oil return of a hydraulic system is received.
One end of the load sensitive multi-way valve 2 is connected with the load sensitive variable plunger pump 3, the other end of the load sensitive multi-way valve is connected with the self-rescue winch 4 and the hauling winch 5, and the self-rescue winch 4 or the hauling winch 5 can be controlled to operate independently by controlling the load sensitive multi-way valve 2 respectively.
The control valve group 1 is installed between the load-sensitive multi-way valve 2 and the self-rescue winch 4 and the rescue winch 5, the self-rescue winch 4 and the oil circuit of the rescue winch 5 are conducted through the control valve group 1, and then the opening degree of the load-sensitive multi-way valve 2 is controlled to realize the combined operation of the self-rescue winch 4 and the rescue winch 5.
In the exemplary embodiment of the utility model provides a rescue vehicle winch hydraulic system, above-mentioned load sensitive multiple unit valve 2 is the sensitive proportional multiple unit valve of PVG32 load of taking leading pressure compensator.
The utility model provides a in the exemplary embodiment of rescue vehicle capstan winch hydraulic system, the valve unit 1 includes two-way stop valve of normal close formula, valve piece, electro-magnet, and two-way stop valve of normal close formula pass through the pipeline and link to each other, and the electro-magnet is installed on every pipeline that links to each other.
When the self-rescue winch and the hauling winch work independently, the electromagnets DT1 and DT2 on the control valve set lose power, the control valve set does not work, and the direction and the opening degree of the two paths of load sensitive multi-way valves are respectively controlled, so that the rope winding and unwinding of the self-rescue winch or the hauling winch can be controlled in the independent work.
When the self-rescue winch and the hauling winch are in combined operation, the electromagnets DT1 and DT2 of the control valve set are powered on simultaneously, so that the port A of the self-rescue winch is communicated with the port A of the hauling winch, the port B of the self-rescue winch is communicated with the port B of the hauling winch, when the two winches are in combined operation and rope is taken up, the opening degrees of the two paths of load-sensitive multi-way valves are controlled simultaneously, and the rope taking-up speed can be controlled when the two winches are in combined operation.
When the self-rescue winch and the hauling winch work in a combined mode, when the flow rate does not reach a saturation state, the two loops realize automatic flow rate distribution through the control valve group, the flow rate is guaranteed to be automatically distributed to the winch with a smaller load, the two winches work simultaneously, and the use requirement of the winch device of the rescue vehicle in the combined mode is met; when the flow reaches a saturation state, the two loops realize automatic distribution of the flow through the control valve group, the flow is guaranteed to be automatically distributed to the winch with a smaller load, and the use requirement of the winch combined operation of the rescue vehicle is met.
The utility model provides a rescue vehicle capstan winch hydraulic system is through above-mentioned structure, can carry out independent or combined operation's state through the capstan winch of saving oneself or the capstan winch of dragging for the rescue on the rescue vehicle through the valve unit and carry out quick effectual switching to can carry out flow automatic allocation to the less capstan winch of load when hydraulic flow saturation, guarantee rescue vehicle combined operation's operation requirement, for the rescue vehicle provides the biggest rescue force, hydraulic system control is convenient, the operation is reliable.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. Rescue car capstan winch operation hydraulic system, including the capstan winch of saving oneself, drag the rescue capstan winch, the control valve group, the sensitive multiple unit valve of load and the sensitive variable plunger pump of load, its characterized in that:
the self-rescue winch and the hauling winch are connected with the load sensitive variable plunger pump, the load sensitive variable plunger pump supplies oil to the self-rescue winch and the hauling winch and receives return oil of the system,
one end of the load sensitive multi-way valve is connected with the load sensitive variable plunger pump, the other end of the load sensitive multi-way valve is connected with the self-rescue winch and the hauling winch, and the self-rescue winch or the hauling winch can be controlled to operate independently by controlling the load sensitive multi-way valve respectively;
the control valve group is installed between the load-sensitive multi-way valve and the self-rescue winch and the hauling winch, oil ways of the self-rescue winch and the hauling winch are communicated through the control valve group, and then the opening degree of the load-sensitive multi-way valve is controlled to realize the combined operation of the self-rescue winch and the hauling winch.
2. The rescue vehicle winch operation hydraulic system of claim 1, wherein: the load sensitive multi-way valve is a PVG32 load sensitive proportional multi-way valve with a front pressure compensator.
3. The rescue vehicle winch operation hydraulic system of claim 1, wherein: the control valve group comprises normally closed bidirectional stop valves, valve blocks and electromagnets, wherein the two normally closed bidirectional stop valves are connected through pipelines, and the electromagnets are installed on each connected pipeline.
4. The rescue vehicle winch operation hydraulic system of claim 1, wherein: when the self-rescue winch and the hauling winch work independently, the electromagnets DT1 and DT2 on the control valve set lose power, the control valve set does not work, and the direction and the opening degree of the two paths of load sensitive multi-way valves are respectively controlled, so that the rope winding and unwinding of the self-rescue winch or the hauling winch can be controlled in the independent work.
5. The rescue vehicle winch operation hydraulic system of claim 1, wherein: when the self-rescue winch and the hauling winch are in combined operation, the electromagnets DT1 and DT2 of the control valve set are powered on simultaneously, so that the port A of the self-rescue winch is communicated with the port A of the hauling winch, the port B of the self-rescue winch is communicated with the port B of the hauling winch, when the two winches are in combined operation and rope is taken up, the opening degrees of the two paths of load-sensitive multi-way valves are controlled simultaneously, and the rope taking-up speed can be controlled when the two winches are in combined operation.
6. The rescue vehicle winch operation hydraulic system of claim 1 or 5, wherein: when the self-rescue winch and the hauling winch work in a combined mode, when the flow rate does not reach a saturation state, the two loops realize automatic flow rate distribution through the control valve group, the flow rate is guaranteed to be automatically distributed to the winch with a smaller load, the two winches work simultaneously, and the use requirement of the winch device of the rescue vehicle in the combined mode is met; when the flow reaches a saturation state, the two loops realize automatic distribution of the flow through the control valve group, the flow is guaranteed to be automatically distributed to the winch with smaller load, and the use requirement of winch combined operation of the rescue vehicle is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220490926.3U CN217080928U (en) | 2022-03-09 | 2022-03-09 | Hydraulic system for winch operation of rescue vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220490926.3U CN217080928U (en) | 2022-03-09 | 2022-03-09 | Hydraulic system for winch operation of rescue vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217080928U true CN217080928U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220490926.3U Active CN217080928U (en) | 2022-03-09 | 2022-03-09 | Hydraulic system for winch operation of rescue vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217080928U (en) |
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- 2022-03-09 CN CN202220490926.3U patent/CN217080928U/en active Active
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Address after: 043000 No. 32 Shifu Road, Houma City, Linfen City, Shanxi Province Patentee after: CITIC Electromechanical Research and Design Institute (Shanxi) Co.,Ltd. Country or region after: China Address before: 043000 No. 32 Shifu Road, Houma City, Linfen City, Shanxi Province Patentee before: SCIENTIFIC RESEARCH DESIGN INSTITUTE OF CITIC MACHINERY MANUFACTURING Inc. Country or region before: China |