CN211039192U - Hydraulic system for snow sweeper - Google Patents
Hydraulic system for snow sweeper Download PDFInfo
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- CN211039192U CN211039192U CN201922302056.3U CN201922302056U CN211039192U CN 211039192 U CN211039192 U CN 211039192U CN 201922302056 U CN201922302056 U CN 201922302056U CN 211039192 U CN211039192 U CN 211039192U
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- 241001417527 Pempheridae Species 0.000 title claims abstract description 29
- 239000003921 oil Substances 0.000 claims abstract description 134
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 43
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 description 19
- 238000012856 packing Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a hydraulic system for a snow sweeper, which comprises a hydraulic oil tank, a driver, a hydraulic pump, a pressure reducing valve, an electromagnetic directional valve and an oil cylinder; the hydraulic pump is connected with a hydraulic oil tank, the hydraulic pump is connected to a pressure reducing valve through an oil inlet pipeline, the pressure reducing valve is connected with an electromagnetic valve, and the electromagnetic valve is connected to a rodless cavity of the oil cylinder; the oil inlet pipeline is connected with a pressure oil port P of the electromagnetic directional valve, a working oil port A of the electromagnetic directional valve is connected to a rod cavity of the oil cylinder, a working oil port B of the electromagnetic directional valve is connected to a rodless cavity of the oil cylinder, and an oil return port T of the electromagnetic directional valve is connected to a hydraulic oil tank through an oil return pipeline. The utility model discloses a hydro-cylinder has configured the relief pressure valve that has reverse overflow function, and hydraulic oil is gone into to the pump when hydro-cylinder rodless chamber oil pressure reduces automatically, releases hydraulic oil when hydro-cylinder rodless chamber oil pressure risees, realizes hydro-cylinder rodless intracavity pressure stability, even the round brush or the auger of ensureing the snow sweeper also can keep following in step and stable laminating power in the face of the ground of undulation.
Description
Technical Field
The utility model relates to a hydraulic equipment field especially relates to a hydraulic system for controlling snow sweeper round brush and auger.
Background
The snow removing equipment with the rolling brush and the auger needs to keep a certain attaching force between the rolling brush and the auger and the ground in the operation process so as to clean the accumulated snow on the ground; meanwhile, the rolling brush and the packing auger are required to follow the fluctuation of the ground, so that the rolling brush, the packing auger and the road surface are prevented from being damaged. When a hydraulic system is adopted to control the lifting of the rolling brush and the packing auger, a reasonable technical means is adopted to realize that the rolling brush and the packing auger follow the fluctuation of the road surface and ensure the attaching force between the rolling brush and the packing auger and the ground.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a hydraulic system for controlling snowmobile round brush and auger lift realizes that round brush and auger follow the road surface and fluctuate and guarantee simultaneously that it pastes the resultant force between its and the ground.
In order to solve the technical problem, the utility model discloses a technical scheme does: a hydraulic system for a snow sweeper comprises a hydraulic oil tank, a driver, a hydraulic pump, a pressure reducing valve, an electromagnetic directional valve and an oil cylinder;
the driver drives the hydraulic pump, and the driver adopts a motor or an internal combustion engine; the hydraulic pump is connected with a hydraulic oil tank, the hydraulic pump is connected to a pressure reducing valve through an oil inlet pipeline, the pressure reducing valve is connected with an electromagnetic valve, and the electromagnetic valve is connected to a rodless cavity of the oil cylinder;
the oil inlet pipeline is connected with a pressure oil port P of the electromagnetic directional valve, a working oil port A of the electromagnetic directional valve is connected to a rod cavity of the oil cylinder, a working oil port B of the electromagnetic directional valve is connected to a rodless cavity of the oil cylinder, and an oil return port T of the electromagnetic directional valve is connected to a hydraulic oil tank through an oil return pipeline;
the pressure reducing valve has an inverse overflow function, and an oil return port T1 of the pressure reducing valve is connected with an oil return pipeline.
When the snow sweeper works, the electromagnetic valve is opened, and the electromagnetic reversing valve is closed; the hydraulic pump pumps hydraulic oil into an oil inlet pipeline, and the hydraulic oil sequentially passes through a pressure reducing valve and an electromagnetic valve and then enters a rodless cavity of the oil cylinder; the pressure of the high-pressure hydraulic oil in the oil inlet pipeline is reduced to a set pressure by the pressure reducing valve, and the set pressure of the hydraulic oil in the rodless cavity in the oil cylinder is used for providing the attaching force of the rolling brush or the packing auger to the ground;
when the snow sweeper encounters a raised ground in the process of traveling, the rolling brush or the auger extrudes the telescopic rod of the oil cylinder to cause the oil pressure in the rodless cavity of the oil cylinder to rise and exceed the set pressure of the pressure reducing valve, and part of the hydraulic oil finally returns to the hydraulic oil tank through the oil return port T1 of the pressure reducing valve and an oil return pipeline through the reverse overflow function of the pressure reducing valve, so that the pressure in the rodless cavity of the oil cylinder is reduced to the set pressure again;
when the snow sweeper runs into a ground recess, the telescopic rod of the oil cylinder extends naturally to cause the pressure of the rodless cavity of the oil cylinder to be reduced and lower than the set pressure of the pressure reducing valve, at the moment, high-pressure hydraulic oil in the oil inlet pipeline automatically enters the rodless cavity of the oil cylinder through the pressure reducing valve, the oil pressure of the rodless cavity of the oil cylinder is increased to the set pressure again, and the attaching force of the rolling brush or the packing auger to the ground is recovered;
before the snow sweeper starts to work and after the snow sweeper finishes working, the electromagnetic valve is closed, the electromagnetic reversing valve is opened, and workers pump oil to a rodless cavity or a rod cavity of the oil cylinder by controlling the electromagnetic reversing valve to realize the lifting of the rolling brush or the packing auger.
Furthermore, a high-pressure filter is arranged on the oil inlet pipeline.
Furthermore, the hydraulic system further comprises an overflow valve, the overflow valve is connected with the oil inlet pipeline and the oil return pipeline, the overflow valve is used for limiting the highest pressure of the oil inlet pipeline, and when the oil pressure of the oil inlet pipeline is too high, hydraulic oil enters the return pipeline through the overflow valve.
Furthermore, the hydraulic system also comprises an electric control one-way valve, and the electric control one-way valve is connected with the oil inlet pipeline and the oil return pipeline; the overflow valve is positioned behind the high-pressure filter, and the electric control one-way valve is positioned behind the overflow valve.
Furthermore, an oil return filter and a radiator are arranged on the oil return pipeline, and the radiator is positioned between the oil return filter and the hydraulic oil tank; the hydraulic oil needs to do work when passing through the oil cylinder, the temperature of the hydraulic oil after doing work is raised under the friction action of each friction pair in the hydraulic system, and the radiator is used for dissipating heat and cooling the heated hydraulic oil.
Further, an oil inlet ball valve is arranged between the hydraulic pump and the hydraulic oil tank.
Has the advantages that: (1) the utility model discloses a hydraulic system for snow sweeper has configured the relief pressure valve that has reverse overflow function for the hydro-cylinder, and hydraulic oil is gone into to the pump when hydro-cylinder rodless chamber oil pressure reduces automatically, releases hydraulic oil when hydro-cylinder rodless chamber oil pressure risees, realizes hydro-cylinder rodless intracavity pressure stability, even the round brush or the auger of ensureing to snow sweeper also can keep following in step and stable laminating power in the face of the ground of undulation. (2) The utility model discloses a hydraulic system for snow sweeper sets up overflow valve and automatically controlled check valve advancing oil pipe way and returning oil pipe way between, and the highest pressure in the oil pipe way is advanced in the control ensures hydraulic system's safety. (3) The utility model discloses a hydraulic system for snow sweeper sets up oil return filter and radiator in returning oil pipe way, avoids hydraulic oil to introduce hydraulic tank with impurity and heat after doing work, is favorable to the permanent steady operation of hydraulic system.
Drawings
FIG. 1 is a hydraulic system configuration diagram for a snow sweeper of embodiment 1.
Wherein: 1. a hydraulic oil tank; 2. a motor; 3. a hydraulic pump; 4. a pressure reducing valve; 5. an electromagnetic valve; 6. an electromagnetic directional valve; 7. an oil cylinder; 8. a high pressure filter; 9. an overflow valve; 10. an electrically controlled check valve; 11. an oil return filter; 12. a heat sink; 13. an oil inlet ball valve; 14. an oil inlet pipeline; 15. an oil return line.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
As shown in fig. 1, the hydraulic system for a snow remover of the present embodiment includes a hydraulic oil tank 1, a motor 2, a hydraulic pump 3, a pressure reducing valve 4, an electromagnetic valve 5, an electromagnetic directional valve 6, an oil cylinder 7, a high-pressure filter 8, an overflow valve 9, an electrically controlled check valve 10, an oil return filter 11, a radiator 12, and an oil inlet ball valve 13;
the motor 2 drives the hydraulic pump 3, the hydraulic pump 3 is connected with the hydraulic oil tank 1 through an oil inlet ball valve 13, the hydraulic pump 3 is connected to the pressure reducing valve 4 through an oil inlet pipeline 14, the pressure reducing valve 4 is connected with the electromagnetic valve 5, the electromagnetic valve 5 is connected to a rodless cavity of the oil cylinder 7, and a telescopic rod of the oil cylinder 7 is used for driving a rolling brush or a packing auger of the snow sweeper to move up and down; the oil inlet pipeline 14 is sequentially provided with a high-pressure filter 8, an overflow valve 9 and an electric control one-way valve 10; wherein, the overflow valve 9 and the electric control one-way valve 10 are connected with an oil return pipeline 15;
the oil inlet pipeline 14 is connected with a pressure oil port P of the electromagnetic directional valve 6, a working oil port A of the electromagnetic directional valve 6 is connected to a rod cavity of the oil cylinder 7, a working oil port B of the electromagnetic directional valve 6 is connected to a rodless cavity of the oil cylinder 7, and an oil return port T of the electromagnetic directional valve 6 is connected to the hydraulic oil tank 1 through an oil return pipeline 15;
the pressure reducing valve 4 has a reverse overflow function, an oil return port T1 of the pressure reducing valve 4 is connected with an oil return pipeline 15, and the oil return pipeline 15 is also provided with an oil return filter 11 and a radiator 12; the hydraulic oil needs to do work when passing through the oil cylinder 7, the temperature of the hydraulic oil after doing work is raised under the friction action of each friction pair in the hydraulic system, and the radiator 12 is used for dissipating heat and cooling the heated hydraulic oil.
When the snow sweeper works, the electromagnetic valve 5 is electrified to be in an open state, and the electromagnetic directional valve 6 is closed; the hydraulic pump 3 pumps hydraulic oil into an oil inlet pipeline 14, and the hydraulic oil enters a rodless cavity of the oil cylinder 7 after sequentially passing through the high-pressure filter 8, the pressure reducing valve 4 and the electromagnetic valve 5; the pressure of the high-pressure hydraulic oil in the oil inlet pipeline 14 is reduced to a set pressure by the pressure reducing valve 4, and the set pressure of the hydraulic oil in the rodless cavity in the oil cylinder 7 is used for providing the attaching force of the rolling brush or the packing auger to the ground;
when the snow sweeper encounters a raised ground in the process of traveling, the telescopic rod of the oil cylinder 7 is extruded by the rolling brush or the auger, so that the oil pressure in the rodless cavity of the oil cylinder 7 rises and exceeds the set pressure of the pressure reducing valve 4, and part of hydraulic oil finally returns to the hydraulic oil tank 1 through the oil return port T1 of the pressure reducing valve 4 and the oil return pipeline 15 by virtue of the reverse overflow function of the pressure reducing valve 4, so that the pressure in the rodless cavity of the oil cylinder 7 is reduced to the set pressure again;
when the snow sweeper encounters ground depression during traveling, the telescopic rod of the oil cylinder 7 naturally extends to cause the pressure of the rodless cavity of the oil cylinder 7 to be reduced and lower than the set pressure of the pressure reducing valve 4, at the moment, high-pressure hydraulic oil in the oil inlet pipeline 14 automatically enters the rodless cavity of the oil cylinder 7 through the pressure reducing valve 4, the oil pressure of the rodless cavity of the oil cylinder 7 is increased to the set pressure again, and the bonding force of the rolling brush or the packing auger to the ground is recovered;
before the snow remover starts to work and after the snow remover finishes working, the electromagnetic valve 5 is closed, the electromagnetic directional valve 6 is opened, workers pump oil to a rodless cavity or a rod cavity of the oil cylinder 7 by controlling the electromagnetic directional valve 6 to realize the lifting of the rolling brush or the packing auger, the lifting of the rolling brush or the packing auger is mainly realized by lowering the rolling brush or the packing auger to be attached to the ground before the snow remover starts to work, and the rolling brush or the packing auger is lifted to be away from the ground after the snow remover finishes working.
Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A hydraulic system for a snow sweeper is characterized in that: comprises a hydraulic oil tank (1), a driver, a hydraulic pump (3), a pressure reducing valve (4), an electromagnetic valve (5), an electromagnetic directional valve (6) and an oil cylinder (7);
the hydraulic pump (3) is driven by the driver, the hydraulic pump (3) is connected with the hydraulic oil tank (1), the hydraulic pump (3) is connected to the pressure reducing valve (4) through the oil inlet pipeline (14), the pressure reducing valve (4) is connected with the electromagnetic valve (5), and the electromagnetic valve (5) is connected to a rodless cavity of the oil cylinder (7);
an oil inlet pipeline (14) is connected with a pressure oil port P of the electromagnetic directional valve (6), a working oil port A of the electromagnetic directional valve (6) is connected to a rod cavity of the oil cylinder (7), a working oil port B of the electromagnetic directional valve (6) is connected to a rodless cavity of the oil cylinder (7), and an oil return port T of the electromagnetic directional valve (6) is connected to the hydraulic oil tank (1) through an oil return pipeline (15);
the pressure reducing valve (4) has a reverse overflow function, and an oil return port T1 of the pressure reducing valve (4) is connected with an oil return pipeline (15).
2. The hydraulic system for a snow sweeper of claim 1, wherein: the driver is an electric motor (2) or an internal combustion engine.
3. The hydraulic system for a snow sweeper of claim 1, wherein: and a high-pressure filter (8) is arranged on the oil inlet pipeline (14).
4. The hydraulic system for a snow sweeper of claim 3, wherein: the oil return device is characterized by further comprising an overflow valve (9), wherein the overflow valve (9) is connected with the oil inlet pipeline (14) and the oil return pipeline (15).
5. The hydraulic system for a snow sweeper of claim 4, wherein: the oil return device is characterized by also comprising an electric control one-way valve (10), wherein the electric control one-way valve (10) is connected with an oil inlet pipeline (14) and an oil return pipeline (15); the overflow valve (9) is positioned behind the high-pressure filter (8), and the electric control one-way valve (10) is positioned behind the overflow valve (9).
6. The hydraulic system for a snow sweeper of claim 1, wherein: and an oil return filter (11) is arranged on the oil return pipeline (15).
7. The hydraulic system for a snow sweeper of claim 6, wherein: and a radiator (12) is arranged on the oil return pipeline (15).
8. The hydraulic system for a snow sweeper of claim 7, wherein: and the radiator (12) is positioned between the oil return filter (11) and the hydraulic oil tank (1).
9. The hydraulic system for a snow sweeper of claim 1, wherein: an oil inlet ball valve (13) is arranged between the hydraulic pump (3) and the hydraulic oil tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922302056.3U CN211039192U (en) | 2019-12-19 | 2019-12-19 | Hydraulic system for snow sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922302056.3U CN211039192U (en) | 2019-12-19 | 2019-12-19 | Hydraulic system for snow sweeper |
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| Publication Number | Publication Date |
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| CN211039192U true CN211039192U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922302056.3U Active CN211039192U (en) | 2019-12-19 | 2019-12-19 | Hydraulic system for snow sweeper |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899592A (en) * | 2020-09-09 | 2020-11-06 | 湖南翰坤实业有限公司 | 9D space capsule earthquake safety education control system based on virtual reality |
| CN111915952A (en) * | 2020-09-09 | 2020-11-10 | 湖南翰坤实业有限公司 | Traffic safety education control system of dynamic experience platform |
| CN111932974A (en) * | 2020-09-09 | 2020-11-13 | 湖南翰坤实业有限公司 | Construction safety education control system of dynamic experience platform |
| CN111932975A (en) * | 2020-09-09 | 2020-11-13 | 湖南翰坤实业有限公司 | 9D space capsule construction safety education control system based on virtual reality |
| CN112044054A (en) * | 2020-09-09 | 2020-12-08 | 湖南翰坤实业有限公司 | VR-based 9D space capsule intelligent control system |
| CN113565814A (en) * | 2021-07-27 | 2021-10-29 | 山东施卫普环保科技有限公司 | Hydraulic system for automatically controlling sequential actions of two oil cylinders by single hydraulic reversing valve |
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2019
- 2019-12-19 CN CN201922302056.3U patent/CN211039192U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899592A (en) * | 2020-09-09 | 2020-11-06 | 湖南翰坤实业有限公司 | 9D space capsule earthquake safety education control system based on virtual reality |
| CN111915952A (en) * | 2020-09-09 | 2020-11-10 | 湖南翰坤实业有限公司 | Traffic safety education control system of dynamic experience platform |
| CN111932974A (en) * | 2020-09-09 | 2020-11-13 | 湖南翰坤实业有限公司 | Construction safety education control system of dynamic experience platform |
| CN111932975A (en) * | 2020-09-09 | 2020-11-13 | 湖南翰坤实业有限公司 | 9D space capsule construction safety education control system based on virtual reality |
| CN112044054A (en) * | 2020-09-09 | 2020-12-08 | 湖南翰坤实业有限公司 | VR-based 9D space capsule intelligent control system |
| CN113565814A (en) * | 2021-07-27 | 2021-10-29 | 山东施卫普环保科技有限公司 | Hydraulic system for automatically controlling sequential actions of two oil cylinders by single hydraulic reversing valve |
| CN113565814B (en) * | 2021-07-27 | 2024-03-26 | 山东施卫普环保科技有限公司 | Hydraulic system with single hydraulic reversing valve for automatically controlling two-way oil cylinders to act sequentially |
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