CN204783913U - Underground scraper hydraulic pressure guide oil supply unit - Google Patents
Underground scraper hydraulic pressure guide oil supply unit Download PDFInfo
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- CN204783913U CN204783913U CN201520458369.7U CN201520458369U CN204783913U CN 204783913 U CN204783913 U CN 204783913U CN 201520458369 U CN201520458369 U CN 201520458369U CN 204783913 U CN204783913 U CN 204783913U
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- fluid port
- hydraulic fluid
- hydraulic
- oil
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Abstract
The utility model discloses an underground scraper hydraulic pressure guide oil supply unit, which comprises the following components: a valve body, be equipped with a plurality of hydraulic fluid ports on the valve body, characterized by, the valve body is external to have energy storage ware and pressure measuring connector, the integration has shuttle valve, decompression overflow valve, check valve, damping and electromagnetism unloading valve in the valve body, the oil -out of shuttle valve links to each other with decompression overflow valve decompression function oil inlet, the decompression overflow valve passes through the check valve and links to each other with electromagnetism unloading valve and energy storage ware respectively. The utility model discloses a general interchangeability well and the nimble inserted valve combination of equipment form realize the function of hydraulic pressure guide fuel feeding, reduced the fluid pressure line connection with hydraulic component is integrated on a valves, make things convenient for spatial layout.
Description
Technical field
The utility model relates to a kind of hydraulic pilot oil supplying device, particularly relates to a kind of underground carry scraper hydraulic pilot oil supplying device.
Background technique
The control mode of underground carry scraper hydraulic multitandem valve, mainly contain mechanical, hand-driven at present and control and Hydraulic guide control, Hydraulic guide control comprises again solenoid valve hydraulic control and hand-hydraulic controls two kinds of modes.The labor intensity of mechanical, hand-driven control operation person is comparatively large, and manipulator is easily felt tired.Adopt Hydraulic guide control can improve its control system performance and simplify the operation course, especially more easily embodied under severe working environment.
Current underground carry scraper is except the little tonnage (2m of minority
3and following) type adopts mechanical, hand-driven to control outside multi-way valve, in all the other Hydraulic System of LHD Units, multi-way valve all adopts Hydraulic guide control form.Can the pressure of hydraulic control oil circuit and flow be all less, but Operational Figure Of Merit is high, ensure the stability of hydraulic control oil circuit, are related to the reliability of whole hydraulic system.
Except minority underground carry scraper by from the low-pressure pilot pump of prime mover driven directly to pilot-actuated valve group fuel feeding, most of underground carry scraper introduces hydraulic oil supply pilot-actuated valve group from existing oil hydraulic pump (steering pump or working pump or brake pump etc.) through reduction valve and accumulator.
For by from the system of low-pressure pilot pump directly to pilot-actuated valve group fuel feeding, when oil hydraulic pump break down cannot pump oil time, pilot control just cuts off immediately, multi-way valve in system cannot commutate, cause underground carry scraper that large arm cannot be made to be put into ground location safely, and the many a set of hydraulic circuits of this fuel system, make car load hydraulic pipe line complicated layout.For adopting the system introducing hydraulic oil from oil hydraulic pump (steering pump or working pump or brake pump etc.) through reduction valve and accumulator, although oil hydraulic pump break down cannot pump oil time, carry out large arm falling, scraper bowl upset can utilize accumulator to store fluid for pilot-actuated valve fuel feeding to make in system multi-way valve commutation or turn to.But reduction valve and relief valve are that parallel connection takes back fuel tank in this kind of oil supply system, if be integrated on cartridge valve, cartridge valve volume can be caused to increase, if not integrated installation, then connecting hydraulic lines can be caused to increase.
Model utility content
For solving the deficiencies in the prior art, the purpose of this utility model is, the underground carry scraper hydraulic pilot oil supplying device providing a kind of level of integration high, safe and reliable.The utility model adopts general interchangeability good and the cartridge valve of assembling flexible form combines the function realizing hydraulic pilot fuel feeding, is integrated in by hydraulic element in a valve group, decreases hydraulic pipe line and connects, facilitate space layout.
The technical solution of the utility model is: a kind of underground carry scraper hydraulic pilot oil supplying device, comprise valve body, described valve body is provided with multiple hydraulic fluid port, it is characterized in that, described valve body is circumscribed with accumulator and pressure measuring tie-in, be integrated with shuttle valve, decompression relief valve, one-way valve, damping and unloading electromagnetic valve in described valve body, the oil outlet of described shuttle valve is connected with decompression relief valve pressure-reducing function filler opening; Described decompression relief valve is connected with accumulator with unloading electromagnetic valve respectively by one-way valve.
Aforesaid a kind of underground carry scraper hydraulic pilot oil supplying device, it is characterized in that, described hydraulic fluid port comprises P1 hydraulic fluid port, P2 hydraulic fluid port, P3 hydraulic fluid port, P4 hydraulic fluid port, P hydraulic fluid port and T hydraulic fluid port, described P1 hydraulic fluid port pumps hydraulic fluid port with spragging gear and is connected, described P2 hydraulic fluid port turns to motor-drive pump oil outlet to be connected with emergent, described P3 hydraulic fluid port connects accumulator, described P4 hydraulic fluid port connects pressure measuring tie-in, described pressure measuring tie-in is arranged between described accumulator and described P hydraulic fluid port, described P hydraulic fluid port is connected with the filler opening of pilot-actuated valve group, described T hydraulic fluid port is connected with the return opening of pilot-actuated valve group and hydraulic oil container respectively.
Aforesaid a kind of underground carry scraper hydraulic pilot oil supplying device, is characterized in that, be connected to damping between described unloading electromagnetic valve and hydraulic oil container.
Aforesaid a kind of underground carry scraper hydraulic pilot oil supplying device, it is characterized in that, described unloading electromagnetic valve is 2/2-way electromagnetic switch valve.
Aforesaid a kind of underground carry scraper hydraulic pilot oil supplying device, it is characterized in that, described accumulator is diaphragm accumulator.
The beneficial effect that the utility model reaches:
1. reduction valve and relief valve unite two into one with the replacement of decompression relief valve by this device, improve hydraulic element operating characteristics and decrease valve block internal oil channel quantity and make the long-pending reduction of valve block;
2. add unloading electromagnetic valve, can when vehicle is shut down in time to the off-load of guide's oil circuit, unloading electromagnetic valve is integrated on valve body, effectively reduces connecting pipeline;
3. shuttle valve two filler opening connects gear pump and motor-drive pump, prime mover break down cause gear pump to work time, still can with motor-drive pump to guide's oil circuit fuel feeding;
4. diaphragm accumulator can absorb the compression shock of oil circuit and carry out fluid storage, when oil hydraulic pump fuel cut-off, utilizes the pressure oil in accumulator still can to pilot-actuated valve group fuel feeding;
5. valve block adopts cartridge valve, and plug-in type combination brake switch and proporting element cost is low, and general interchangeability is good, and assembling flexible form, reduces connecting pipeline, is convenient to space and arranges.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
In figure, the implication of each Main Reference Numerals is:
1, valve body; 2, shuttle valve; 3, reduce pressure relief valve; 4, one-way valve; 5, damping; 6, unloading electromagnetic valve; 7, diaphragm accumulator; 8, pressure measuring tie-in; 9, brake tooth wheel pump; 10, emergently motor-drive pump is turned to; 11, pilot-actuated valve group; 12, hydraulic oil container.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
With reference to Fig. 1, a kind of underground carry scraper hydraulic pilot of this example oil supplying device comprises valve body 1, shuttle valve 2, decompression relief valve 3, one-way valve 4, damping 5, unloading electromagnetic valve 6, diaphragm accumulator 7, pressure measuring tie-in 8.Described shuttle valve 2, decompression relief valve 3, one-way valve 4, damping 5, unloading electromagnetic valve 6 are all integrated in valve body 1, are connected on valve body 1 outside diaphragm accumulator 7, pressure measuring tie-in 8.The oil outlet of described shuttle valve 2 is connected with decompression relief valve 3 pressure-reducing function filler opening; Decompression relief valve 3 is connected with accumulator 7 with unloading electromagnetic valve 6 respectively by one-way valve 4; Damping 5 is connected between unloading electromagnetic valve 6 and hydraulic oil container 12.
Described valve body 1 is provided with multiple hydraulic fluid port, and described hydraulic fluid port comprises P1 hydraulic fluid port, P2 hydraulic fluid port, P3 hydraulic fluid port, P4 hydraulic fluid port, P hydraulic fluid port and T hydraulic fluid port, and wherein, P1 hydraulic fluid port is connected with brake tooth wheel pump 9 oil outlet; P2 hydraulic fluid port turns to motor-drive pump 10 oil outlet to be connected with emergent; P3 hydraulic fluid port connects diaphragm accumulator 7, P4 hydraulic fluid port and connects pressure measuring tie-in 8; Pressure measuring tie-in 8 is arranged between diaphragm accumulator 7 and P hydraulic fluid port; P hydraulic fluid port comprises work pilot valves with pilot-actuated valve group 11(and turns to pilot valves etc.) filler opening be connected; T hydraulic fluid port is connected with the return opening of pilot-actuated valve group 11 and hydraulic oil container 12 respectively.
Described decompression relief valve 3 forward plays decompression, oppositely plays overflow effect; Unloading electromagnetic valve 6 is 2/2-way electromagnetic switch valve.
When underground carry scraper normally works, key operation pushes electric position on ACC, and car load is energized and that the electromagnet of unloading electromagnetic valve 6 is obtained is electric, and unloading electromagnetic valve 6 is in packing state.When starting prime mover (motor or motor), the oil of hydraulic oil container 12 is become pressure oil by brake tooth wheel pump 9, also gives this guide's oil supplying device fuel feeding while being defeated by braking system by the road, and meeting an urgent need when scraper normally works turns to motor-drive pump 10 not work.Pressure oil enters shuttle valve 2 by the P1 mouth of this device, because P2 mouth when scraper normally works is without pressure oil, so the pressure oil entered by P1 mouth enters decompression relief valve 3 and one-way valve 4 from shuttle valve 1, the pressure oil flowing through one-way valve 4 comprises work pilot valves to pilot-actuated valve group 11(and turns to pilot valves etc.) fuel feeding to diaphragm accumulator 7 topping up, now stir work or course changing control handle can make work and steering equipment carry out corresponding actions.
When prime mover break down make brake tooth wheel pump 9 cannot pump oil time, when car load is also in "on" position, the electromagnet of unloading electromagnetic valve 6 still electric, pressure oil in diaphragm accumulator 7 now can be utilized to pilot-actuated valve group 11 fuel feeding, large arm can be made to fall back to the actions such as ground safely.
When underground carry scraper quits work, key operation pushes OFF power failure position, the electromagnet dead electricity of unloading electromagnetic valve 6, unloading electromagnetic valve 6 off-load, and the pressure oil in diaphragm accumulator 7 flows back to hydraulic oil container 12 through unloading electromagnetic valve 6 and damping 5.
When underground carry scraper break down running out of steam carry out emergent turning to time, starting meets an urgent need turns to motor-drive pump 10 to work, simultaneously for turning to multi-way valve and guide's oil supplying device fuel feeding, pressure oil enters guide's oil supplying device from P2 hydraulic fluid port, and through shuttle valve 2, decompression relief valve 3, one-way valve 4 to pilot-actuated valve group 11 fuel feeding.
Decompression relief valve 3 forward pressure relief settings value 35bar, drops to 35bar by shuttle valve 2 outlet pressure oil pressure, reverse overflow setting value 45bar, the pilot pressure too high impact to oil supply system when preventing decompression relief valve 3 forward pressure-reducing function to lose efficacy.
One-way valve 4 prevents the pressure oil in accumulator 7 and pilot-actuated valve group 11 from flowing back to decompression relief valve 3.
Damping 5 ensures that the fluid flowing back into hydraulic oil container 12 is steadily constant.
Diaphragm accumulator 7 can absorb the compression shock of oil circuit and carry out pressure oil liquid storage, when oil hydraulic pump fuel cut-off, utilizes the pressure oil in diaphragm accumulator 7 still can to pilot-actuated valve group 11 fuel feeding.
Pressure measuring tie-in 8 detects the pressure of accumulator 7 and oil outlet P mouth by external pressure gauge.Pressure measuring tie-in described in the utility model, also can use pressure transducer to realize.
The utility model adopts general interchangeability good and the cartridge valve of assembling flexible form combines the function realizing hydraulic pilot fuel feeding, is integrated in by hydraulic element in a valve group, decreases hydraulic pipe line and connects, facilitate space layout.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection domain of the present utility model.
Claims (5)
1. a underground carry scraper hydraulic pilot oil supplying device, comprise valve body, described valve body is provided with multiple hydraulic fluid port, it is characterized in that, described valve body is circumscribed with accumulator and pressure measuring tie-in, be integrated with shuttle valve, decompression relief valve, one-way valve, damping and unloading electromagnetic valve in described valve body, the oil outlet of described shuttle valve is connected with decompression relief valve pressure-reducing function filler opening; Described decompression relief valve is connected with accumulator with unloading electromagnetic valve respectively by one-way valve.
2. a kind of underground carry scraper hydraulic pilot oil supplying device according to claim 1, it is characterized in that, described hydraulic fluid port comprises P1 hydraulic fluid port, P2 hydraulic fluid port, P3 hydraulic fluid port, P4 hydraulic fluid port, P hydraulic fluid port and T hydraulic fluid port, described P1 hydraulic fluid port pumps hydraulic fluid port with spragging gear and is connected, described P2 hydraulic fluid port turns to motor-drive pump oil outlet to be connected with emergent, described P3 hydraulic fluid port connects accumulator, described P4 hydraulic fluid port connects pressure measuring tie-in, described pressure measuring tie-in is arranged between described accumulator and described P hydraulic fluid port, described P hydraulic fluid port is connected with the filler opening of pilot-actuated valve group, described T hydraulic fluid port is connected with the return opening of pilot-actuated valve group and hydraulic oil container respectively.
3. a kind of underground carry scraper hydraulic pilot oil supplying device according to claim 2, is characterized in that, be connected to damping between described unloading electromagnetic valve and hydraulic oil container.
4. a kind of underground carry scraper hydraulic pilot oil supplying device according to claim 1, it is characterized in that, described unloading electromagnetic valve is 2/2-way electromagnetic switch valve.
5. a kind of underground carry scraper hydraulic pilot oil supplying device according to claim 1, it is characterized in that, described accumulator is diaphragm accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520458369.7U CN204783913U (en) | 2015-06-30 | 2015-06-30 | Underground scraper hydraulic pressure guide oil supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520458369.7U CN204783913U (en) | 2015-06-30 | 2015-06-30 | Underground scraper hydraulic pressure guide oil supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783913U true CN204783913U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520458369.7U Expired - Fee Related CN204783913U (en) | 2015-06-30 | 2015-06-30 | Underground scraper hydraulic pressure guide oil supply unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525641A (en) * | 2016-01-25 | 2016-04-27 | 徐州徐工特种工程机械有限公司 | Movable arm dropping hydraulic system used for skid steer loader in case of flameout |
| CN107813809A (en) * | 2017-10-18 | 2018-03-20 | 徐州徐工矿山机械有限公司 | Quarry tipper reduces the hydraulic system and braking method of service brake stroke |
| CN108131337A (en) * | 2018-01-03 | 2018-06-08 | 北京金炫业科技有限公司 | A kind of control valve group for being used for accumulator filling liquid and off-load |
| CN110513472A (en) * | 2019-09-24 | 2019-11-29 | 洛阳智能农业装备研究院有限公司 | A kind of agricultural machinery automatic transmission control oil sources block |
| CN113978439A (en) * | 2021-09-13 | 2022-01-28 | 中国北方车辆研究所 | Brake unloading liquid-filled valve group |
-
2015
- 2015-06-30 CN CN201520458369.7U patent/CN204783913U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525641A (en) * | 2016-01-25 | 2016-04-27 | 徐州徐工特种工程机械有限公司 | Movable arm dropping hydraulic system used for skid steer loader in case of flameout |
| CN107813809A (en) * | 2017-10-18 | 2018-03-20 | 徐州徐工矿山机械有限公司 | Quarry tipper reduces the hydraulic system and braking method of service brake stroke |
| CN107813809B (en) * | 2017-10-18 | 2024-04-12 | 徐州徐工矿业机械有限公司 | Hydraulic system for reducing service braking stroke of mining dump truck and braking method |
| CN108131337A (en) * | 2018-01-03 | 2018-06-08 | 北京金炫业科技有限公司 | A kind of control valve group for being used for accumulator filling liquid and off-load |
| CN110513472A (en) * | 2019-09-24 | 2019-11-29 | 洛阳智能农业装备研究院有限公司 | A kind of agricultural machinery automatic transmission control oil sources block |
| CN113978439A (en) * | 2021-09-13 | 2022-01-28 | 中国北方车辆研究所 | Brake unloading liquid-filled valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20200630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |