CN203532369U - Pump body bi-directional hydraulic power unit - Google Patents
Pump body bi-directional hydraulic power unit Download PDFInfo
- Publication number
- CN203532369U CN203532369U CN201320650580.XU CN201320650580U CN203532369U CN 203532369 U CN203532369 U CN 203532369U CN 201320650580 U CN201320650580 U CN 201320650580U CN 203532369 U CN203532369 U CN 203532369U
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- Prior art keywords
- oil
- valve
- pump
- hydraulic power
- way valve
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- Expired - Lifetime
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- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 230000002457 bidirectional effect Effects 0.000 claims description 20
- 239000002828 fuel tank Substances 0.000 claims description 12
- 239000000446 fuel Substances 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 84
- 239000010720 hydraulic oil Substances 0.000 description 12
- 238000005336 cracking Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a hydraulic power device used in the field of special vehicles, in particular to a pump body bi-directional hydraulic power unit composed of a bi-directional pump and a back pressure valve module. The pump body bi-directional hydraulic power unit comprises a pump base, the surfaces of two sides of the pump base are fixedly connected with a bi-directional direct current motor and a bi-directional gear pump, the input end of the bi-directional gear pump is connected to an output shaft of the bi-directional direct current motor through a coupling, an oil tank is further installed on one side of the pump base corresponding to the bi-directional gear pump, an oil inlet of the bi-directional gear pump is connected with an oil suction pipe, and the other end of the oil suction pipe extends into the oil tank. The pump base is further provided with a first oil line and a second oil line which are parallel to each other, a first overflow valve and a second overflow valve are fixed on two end faces of the pump base respectively, a valve port at the front end of the first overflow valve is connected with the first oil line, and a valve port at the front end of the second overflow valve is connected with the second oil line. The pump body bi-directional hydraulic power unit can be conveniently and rapidly installed on the special vehicles, and the automation level of the vehicles is improved.
Description
Technical field
The utility model relates to a kind of hydraulic power unit using in special vehicle field, the pump housing bidirectional hydraulic power unit being especially comprised of two-way pump and back pressure valve assembly.
Background technique
Along with scientific and technological progress, client is more and more higher for the requirement of special vehicle automaticity, and automobile hydraulic system application is more and more, and volume and the cost for automobile hydraulic system all proposed new requirement thus, traditional two-way cylinder hydraulic power unit, pump only has one to turn to, and oil cylinder commutation relies on selector valve to carry out, and volume is large, cost is large, in this space of vehicle and weight exigent occasion all, application is subject to significant limitation, is difficult to meet the demand of niche market.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of pump housing bidirectional hydraulic power unit simple in structure, ingenious, rational is provided, and can be installed on quickly and easily on special vehicle, has strengthened the automatization level of vehicle.
The technological scheme providing according to the utility model: a kind of pump housing bidirectional hydraulic power unit, be characterised in that: comprise pump seat, described pump seat both side surface is fixedly connected with bidirectional, dc motor, double-direction gearpump by screw respectively, the input end of described double-direction gearpump is connected on the output shaft of bidirectional, dc motor by coupling, on described pump seat, corresponding to double-direction gearpump one side, fuel tank is also installed, the filler opening of double-direction gearpump is connected with fuel sucking pipe, and the other end of fuel sucking pipe stretches in fuel tank; On described pump seat, also offer the first oil circuit, the second oil circuit that are parallel to each other, in pump seat both ends of the surface, be fixed with respectively the first relief valve, the second relief valve, and the first relief valve front end valve port connects the first oil circuit, the second relief valve front end valve port is connected the second oil circuit; On described pump seat, also offer oil groove, in described oil groove, be fixed with the first one-way valve, the second one-way valve, and in oil groove corresponding to being provided with push rod in conduit between the first one-way valve, the second one-way valve, the first oil circuit and the second oil circuit front end are all connected oil groove, on described pump seat, offer respectively the first oil outlet, the second oil outlet, and in pump seat bottom, two relief valves are installed, and one of them relief valve is placed between the first oil outlet and the first one-way valve, and another relief valve is placed between the second oil outlet and the second one-way valve.
As further improvement of the utility model, the end that described fuel sucking pipe stretches in fuel tank is fixed with oil absorption filter.
As further improvement of the utility model, described oil groove is perpendicular to the first oil circuit.
As further improvement of the utility model, described coupling is placed in the region that the first oil circuit, the second oil circuit, oil groove three surround.
As further improvement of the utility model, described pump seat bottom is fixed with two back pressure valves, and one of them back pressure valve is installed between described double-direction gearpump and the first one-way valve, and another back pressure valve is installed between described double-direction gearpump and the second one-way valve.
Compared with prior art, advantage is the utility model: the utility model is simple and compact for structure does not rationally need selector valve, greatly reduces manufacturing cost, and owing to there is no selector valve, volume can greatly reduce equally; During work, hydraulic oil circulates in oil circuit, can reduce the volume of fuel tank; Due to the existence of back pressure valve, when hydraulic oil is from cylinder rod chamber oil-feed, when rodless cavity is fuel-displaced, unnecessary oil is discharged from the lower back pressure valve of cracking pressure, does not need to open relief valve, and system works pressure is lower, has reduced power consumption and noise.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 is B-B sectional view in Fig. 1.
Fig. 4 hydraulic system principle figure of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Fig. 1 ~ 4, comprise fuel tank 1, fuel sucking pipe 2, relief valve 3, back pressure valve 4, pump seat 5, bidirectional, dc motor 6, double-direction gearpump 7, oil absorption filter 8, the first one-way valve 9, the first relief valve 10, the second relief valve 11, the second one-way valve 12, push rod 13, coupling 14, the first oil circuit 15, the second oil circuit 16, oil groove 17, the first oil outlet 18, the second oil outlet 19 etc.
As shown in Fig. 1 ~ 3, a kind of pump housing bidirectional hydraulic of the utility model power unit, comprise pump seat 5, described pump seat 5 both side surface are fixedly connected with bidirectional, dc motor 6, double-direction gearpump 7 by screw respectively, the input end of described double-direction gearpump 7 is connected on the output shaft of bidirectional, dc motor 6 by coupling 14, on described pump seat 5, corresponding to double-direction gearpump 7 one sides, fuel tank 1 is also installed, the filler opening of double-direction gearpump 7 is connected with fuel sucking pipe, and the other end of fuel sucking pipe stretches in fuel tank 1, on described pump seat 5, also offer the first oil circuit 15, the second oil circuit 16 that are parallel to each other, in pump seat 5 both ends of the surface, be fixed with respectively the first relief valve 10, the second relief valve 11, and the first relief valve 10 front end valve ports are connected the first oil circuit 15, the second relief valve 11 front end valve ports and are connected the second oil circuit 16, on described pump seat 5, also offer oil groove 17, in described oil groove 17, be fixed with the first one-way valve 9, the second one-way valve 12, and in oil groove 17 corresponding to the first one-way valve 9, between the second one-way valve 12, in conduit, be provided with push rod 13, the first oil circuit 15 and the second oil circuit 16 front ends are all connected oil groove 17, on described pump seat 5, offer respectively the first oil outlet 18, the second oil outlet 19, and in pump seat 5 bottoms, two relief valves 3 are installed, and one of them relief valve is placed between the first oil outlet 18 and the first one-way valve 9, another relief valve is placed between the second oil outlet 19 and the second one-way valve 12.
The end that described fuel sucking pipe stretches in fuel tank 1 is fixed with oil absorption filter 8.
Described oil groove 17 is perpendicular to the first oil circuit 15.
Described coupling 14 is placed in the region that the first oil circuit 15, the second oil circuit 16, oil groove 17 threes surround.
Described pump seat 5 bottoms are fixed with two back pressure valves 4, and one of them back pressure valve is installed between described double-direction gearpump 7 and the first one-way valve 9, and another back pressure valve is installed between described double-direction gearpump 7 and the second one-way valve 12.
As shown in Figure 4, this uses novel working principle as follows: the both positive and negative polarity access that bidirectional, dc motor 6 accesses power supply by change can realize bidirectional rotation, bidirectional, dc motor 6 connects double-direction gearpump 7 by coupling 14, when from the second oil outlet 19 when fuel-displaced, 7 of double-direction gearpumps need to suck the oil of discharging from oil cylinder rodless cavity, the spool of pushing one-way valve 12 open is fuel-displaced from the second oil outlet 19, by being connected in the hydraulic tube of oil cylinder, enter the retraction that cylinder rod chamber promotes cylinder piston rod, the hydraulic oil of oil cylinder rodless cavity is pushed into the first oil outlet 18, now one-way valve 9 is not opened, the pressure of the second oil outlet 19 and A increases gradually, pressure increases to the spool that push rod 13 is enough to push open one-way valve 9, pressure drop, hydraulic oil enters gear pump 7 another oil outlets, because rod chamber is larger than rodless cavity volume, under same stroke, the oil return of the first oil outlet 18 is larger than the fuel-displaced flow of the second oil outlet 19, gear pump 7 can not suck heavy wool so, unnecessary oil is discharged or gets rid of from back pressure valve 4 from relief valve 10, because the cracking pressure of back pressure valve 4 is generally lower than relief valve 10, so hydraulic oil that cannot be sucked by gear pump 7, flow through after one-way valve 9, the back pressure valve 4 that makes to be installed between gear pump 7 and one-way valve 9 is opened, hydraulic oil is discharged from back pressure valve 4, oil cylinder starts retraction.
When from the first oil outlet 18 when fuel-displaced, gear pump 7 sucks the hydraulic oil of discharging from cylinder rod chamber, because rod chamber is larger than rodless cavity volume, gear pump cannot suck enough oil from oil cylinder, so need by oil purifier 8 and oil inlet pipe 2 from fuel tank 1 imbibition force feed simultaneously, from gear pump 7 hydraulic oil out, push the spool of one-way valve 12 open, fuel-displaced from the first oil outlet 18, by being connected in the hydraulic tube of oil cylinder, enter stretching out of oil cylinder rodless cavity promotion cylinder piston rod, the hydraulic oil of oil cylinder rodless cavity is pushed into the second oil outlet 19, the hydraulic oil of oil cylinder rodless cavity is pushed into the first oil outlet 18, now one-way valve 12 is not opened, now the pressure of the first oil outlet 18 and the second oil outlet 19 increases gradually, pressure increases to the spool that push rod 13 is enough to push open one-way valve 12, pressure drop, hydraulic oil all enters gear pump 7 another oil outlets, oil cylinder starts to stretch out.
When oil cylinder transships; in order to protect oil cylinder; between the second oil outlet 19 and one-way valve 9, relief valve 3 is installed; the relief valve 3 of same specification is also installed between hydraulic fluid port A and one-way valve 12; when such the first oil outlet 18 or the second oil outlet 19 surpass setting pressure, hydraulic oil can be opened relief valve 3 and carry out pressure release.
Claims (5)
1. a pump housing bidirectional hydraulic power unit, it is characterized in that: comprise pump seat (5), described pump seat (5) both side surface is fixedly connected with bidirectional, dc motor (6), double-direction gearpump (7) by screw respectively, the input end of described double-direction gearpump (7) is connected on the output shaft of bidirectional, dc motor (6) by coupling (14), described pump seat (5) is upper is also provided with fuel tank (1) corresponding to double-direction gearpump (7) one sides, the filler opening of double-direction gearpump (7) is connected with fuel sucking pipe, and the other end of fuel sucking pipe stretches in fuel tank (1), on described pump seat (5), also offer the first oil circuit (15), the second oil circuit (16) that are parallel to each other, in pump seat (5) both ends of the surface, be fixed with respectively the first relief valve (10), the second relief valve (11), and the first relief valve (10) front end valve port is connected the first oil circuit (15), the second relief valve (11) front end valve port is connected the second oil circuit (16), on described pump seat (5), also offer oil groove (17), in described oil groove (17), be fixed with the first one-way valve (9), the second one-way valve (12), and in oil groove (17) corresponding to the first one-way valve (9), between the second one-way valve (12), in conduit, be provided with push rod (13), the first oil circuit (15) and the second oil circuit (16) front end are all connected oil groove (17), on described pump seat (5), offer respectively the first oil outlet (18), the second oil outlet (19), and in pump seat (5) bottom, two relief valves (3) are installed, and one of them relief valve is placed between the first oil outlet (18) and the first one-way valve (9), another relief valve is placed between the second oil outlet (19) and the second one-way valve (12).
2. pump housing bidirectional hydraulic power unit as claimed in claim 1, is characterized in that: the end that described fuel sucking pipe stretches in fuel tank (1) is fixed with oil absorption filter (8).
3. pump housing bidirectional hydraulic power unit as claimed in claim 1, is characterized in that: described oil groove (17) is perpendicular to the first oil circuit (15).
4. pump housing bidirectional hydraulic power unit as claimed in claim 1, is characterized in that: described coupling (14) is placed in the region that the first oil circuit (15), the second oil circuit (16), oil groove (17) three surround.
5. pump housing bidirectional hydraulic power unit as claimed in claim 1, it is characterized in that: described pump seat (5) bottom is fixed with two back pressure valves (4), one of them back pressure valve is installed between described double-direction gearpump (7) and the first one-way valve (9), and another back pressure valve is installed between described double-direction gearpump (7) and the second one-way valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320650580.XU CN203532369U (en) | 2013-10-21 | 2013-10-21 | Pump body bi-directional hydraulic power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320650580.XU CN203532369U (en) | 2013-10-21 | 2013-10-21 | Pump body bi-directional hydraulic power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532369U true CN203532369U (en) | 2014-04-09 |
Family
ID=50418582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320650580.XU Expired - Lifetime CN203532369U (en) | 2013-10-21 | 2013-10-21 | Pump body bi-directional hydraulic power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532369U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220708A (en) * | 2018-01-25 | 2018-06-29 | 无锡市德力流体科技有限公司 | A kind of die casting aluminium pump seat preparation method for hydraulic power unit |
| CN108825565A (en) * | 2018-08-16 | 2018-11-16 | 西南科技大学 | A kind of Integral hydraulic driving device with accumulator |
| US10598193B2 (en) | 2015-10-23 | 2020-03-24 | Aoi | Prime mover system and methods utilizing balanced flow within bi-directional power units |
| US10871174B2 (en) | 2015-10-23 | 2020-12-22 | Aol | Prime mover system and methods utilizing balanced flow within bi-directional power units |
| CN113293817A (en) * | 2021-05-20 | 2021-08-24 | 漳州鑫山航机械有限公司 | Hydraulic equipment for disassembling and assembling bucket tooth pin shaft |
-
2013
- 2013-10-21 CN CN201320650580.XU patent/CN203532369U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10598193B2 (en) | 2015-10-23 | 2020-03-24 | Aoi | Prime mover system and methods utilizing balanced flow within bi-directional power units |
| US10871174B2 (en) | 2015-10-23 | 2020-12-22 | Aol | Prime mover system and methods utilizing balanced flow within bi-directional power units |
| US11326626B2 (en) | 2015-10-23 | 2022-05-10 | Aoi | Prime mover system and methods utilizing balanced flow within bi-directional power units |
| US11614099B2 (en) | 2015-10-23 | 2023-03-28 | AOI (Advanced Oilfield Innovations, Inc.) | Multiport pumps with multi-functional flow paths |
| CN108220708A (en) * | 2018-01-25 | 2018-06-29 | 无锡市德力流体科技有限公司 | A kind of die casting aluminium pump seat preparation method for hydraulic power unit |
| CN108825565A (en) * | 2018-08-16 | 2018-11-16 | 西南科技大学 | A kind of Integral hydraulic driving device with accumulator |
| CN113293817A (en) * | 2021-05-20 | 2021-08-24 | 漳州鑫山航机械有限公司 | Hydraulic equipment for disassembling and assembling bucket tooth pin shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214112 225, Jiangsu, Wuxi, New Town Industrial Zone Patentee after: Buch Hydraulic (Wuxi) Co.,Ltd. Address before: 214112 No. 225, tin Tai Road, Mei Village, Wuxi New District, Jiangsu Patentee before: WUXI DELI FLUID TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |