CN203614517U - Hydraulic power unit - Google Patents
Hydraulic power unit Download PDFInfo
- Publication number
- CN203614517U CN203614517U CN201320712523.XU CN201320712523U CN203614517U CN 203614517 U CN203614517 U CN 203614517U CN 201320712523 U CN201320712523 U CN 201320712523U CN 203614517 U CN203614517 U CN 203614517U
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- Prior art keywords
- passage
- valve
- communicates
- drainback
- entrance point
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- Expired - Fee Related
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- 239000002828 fuel tank Substances 0.000 claims description 20
- 239000000446 fuel Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 33
- 238000010586 diagram Methods 0.000 description 12
- 239000010720 hydraulic oil Substances 0.000 description 10
- 239000007799 cork Substances 0.000 description 2
- -1 gear pump Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a hydraulic power unit and belongs to the technical field of fluid pressure. The hydraulic power unit comprises an oil box, a gear pump, an oil sucking pipe, an oil returning pipe, an electric valve-plate assembly, a motor, a manual valve-plate assembly and a manual pump, wherein an electric valve plate is connected between the gear pump and the motor, the output shaft of the motor is connected with the gear pump after penetrating through the electric valve plate, the oil box is connected onto the gear pump, the oil sucking pipe and the oil returning pipe are both positioned in the oil box and are both connected with the gear pump, the manual valve-plate assembly is connected onto the electric valve-plate assembly, and the manual pump is connected onto the manual valve-plate assembly. The hydraulic power unit has the advantages that the hydraulic power unit has working capability no matter under a condition with electricity or without the electricity, so that the normal working of a whole hydraulic system can be always guaranteed.
Description
Technical field
The utility model relates to a kind of fluid pressure device, particularly a kind of hydraulic power unit.
Background technique
Hydraulic power unit is widely used in lifting structure, discharging vehicle, working platform, press machine, lathe etc. as the oil supplying device in hydraulic system and locates, and it has volume little compared with conventional hydraulic station, lightweight, energy-conservation reliable, the advantages such as low price.Existing hydraulic power unit generally includes fuel tank, gear pump, fuel sucking pipe, return tube, mortor operated valve board component and motor, mortor operated valve board component is connected between gear Pump and Electromotor, the output shaft of motor is connected with gear pump through mortor operated valve board component, fuel tank is connected on gear pump, fuel sucking pipe is all positioned at fuel tank and is all connected with gear pump with return tube, fuel sucking pipe communicates with the in-line in mortor operated valve board component, and return tube communicates with the return line in mortor operated valve board component.When the hydraulic power unit of said structure is worked, motor moves and passes through its output shaft driven gear pump operation, under gear pump effect, hydraulic oil in fuel tank is in fuel sucking pipe is inhaled into the in-line in mortor operated valve board component, and finally flow in the hydraulic power mechanism being connected with mortor operated valve board component, in the time that hydraulic power mechanism is stopped using, open the solenoid valve in mortor operated valve board component, these hydraulic oil that flow in hydraulic power mechanism can flow back in fuel tank by the return line in mortor operated valve board component and the return tube being connected on gear pump again.Although the hydraulic power unit of said structure has reached the object of oil suction and oil return like a cork by controlling motor and solenoid valve, but, motor and solenoid valve all need electric power to drive, once loss of power, as while having a power failure, motor and solenoid valve just cannot move, and now hydraulic power unit has also just lost ability to work, thereby can cause whole hydraulic system to work.
Model utility content
The technical problems to be solved in the utility model is, provides a kind of no matter there being electricity still not have electric in the situation that, all have ability to work, thereby can guarantee all the time the hydraulic power unit of the normal work of whole hydraulic system.
For solving the problems of the technologies described above, the utility model provides a kind of hydraulic power unit of following structure: comprise fuel tank, gear pump, fuel sucking pipe, return tube, mortor operated valve board component and motor, mortor operated valve board component comprises electronic valve plate, solenoid valve, the first one-way valve, relief valve and delivery connection, electronic valve plate is provided with the first suction passage, the first oil discharge passage, the first drainback passage and the second drainback passage, electronic valve plate is connected between gear Pump and Electromotor, the output shaft of motor is connected with gear pump through electronic valve plate, fuel tank is connected on gear pump, fuel sucking pipe is all positioned at fuel tank and is all connected with gear pump with return tube, the first suction passage entrance point communicates with fuel sucking pipe, the first suction passage outlet end is connected and communicates with the first oil discharge passage entrance point and the first drainback passage entrance point simultaneously, the first oil discharge passage outlet end place is provided with delivery connection, the first drainback passage outlet end communicates with return tube, the first one-way valve is arranged in the first suction passage, solenoid valve is arranged on the first drainback passage, the second drainback passage entrance point is connected and communicates with first suction passage at the first check valve inlet end place, the second drainback passage outlet end communicates with return tube, relief valve is arranged on the second drainback passage, wherein, hydraulic power unit also includes manually operated valve board component and hand pump, manually operated valve board component comprises manual valve plate, the second one-way valve, the 3rd one-way valve and stop valve, manually valve plate is provided with the second suction passage, the second oil discharge passage and the 3rd drainback passage, on electronic valve plate, be also provided with the first connecting passage, the second connecting passage and the 3rd connecting passage, manually valve plate is connected with electronic valve plate, manually valve plate is provided with pump seat, the second suction passage entrance point is connected and communicates with first connecting passage one end, the second suction passage outlet end communicates with pump seat bottom, the first connecting passage the other end is connected and communicates with first drainback passage at electromagnetic valve outlet end place, the second one-way valve is arranged in the second suction passage, the second oil discharge passage entrance point communicates with pump seat bottom, the second oil discharge passage outlet end is connected and communicates with second connecting passage one end, the second connecting passage the other end is connected and communicates with first drainback passage at solenoid valve entrance point place, the 3rd one-way valve is arranged on the second oil discharge passage, the entrance point of the 3rd drainback passage is connected and communicates with the 3rd connecting passage one end, the 3rd drainback passage outlet end is connected and communicates with second suction passage at the second check valve inlet end place, the 3rd connecting passage the other end is connected and communicates with the first oil discharge passage, stop valve is arranged on the 3rd drainback passage, hand pump is connected to pump seat place.
Adopt after said structure, compared with prior art, the utlity model has following advantage: while having electricity, the utility model hydraulic power unit can lead to prior art and equally reached like a cork by controlling motor and solenoid valve the object of oil suction and oil return, and while not having electricity, user can manually-operable hand pump, now the hydraulic oil in fuel tank will be in return tube flow into the first drainback passage, then flow in the second suction passage through the first connecting passage, now hydraulic oil can be washed the second one-way valve open and enter into the second oil discharge passage through pump seat, then through the second connecting passage and the first oil discharge passage, and finally flow out for hydraulic system from delivery connection, in the time that hydraulic system is stopped using, only need open stop valve, now the hydraulic oil in hydraulic system will be back in the first oil discharge passage from oily joint, then flow in the 3rd drainback passage through the 3rd connecting passage, again through the second suction passage and the first connecting passage, finally flow back in fuel tank from return tube, as from the foregoing, in the time not having electricity, although motor and solenoid valve cannot move, but, the utility model hydraulic power unit still can reach by manually operated valve board component and hand pump the object of oil suction and oil return, thereby effectively guarantee that whole hydraulic system can normally work all the time.
Accompanying drawing explanation
Fig. 1 is the main TV structure profile schematic diagram of the utility model hydraulic power unit;
Fig. 2 is the main TV structure profile schematic diagram of mortor operated valve board component in the utility model hydraulic power unit;
Fig. 3 is the left TV structure profile schematic diagram of mortor operated valve board component in the utility model hydraulic power unit;
Fig. 4 is the right TV structure profile schematic diagram of mortor operated valve board component in the utility model hydraulic power unit;
Fig. 5 is the sectional structure schematic diagram along A-A line in Fig. 4;
Fig. 6 is the sectional structure schematic diagram along B-B line in Fig. 4;
Fig. 7 is the sectional structure schematic diagram along C-C line in Fig. 4;
Fig. 8 is the main TV structure profile schematic diagram of manually operated valve board component in the utility model hydraulic power unit;
Fig. 9 is the sectional structure schematic diagram along D-D line in Fig. 8;
Figure 10 is the left TV structure profile schematic diagram of manually operated valve board component in the utility model hydraulic power unit;
Figure 11 is the sectional structure schematic diagram along E-E line in Figure 10;
Figure 12 is the oil circuit schematic diagram of the utility model hydraulic power unit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model hydraulic power unit is described in further detail.
As shown in Figure 1 to 11, in this embodiment, the utility model hydraulic power unit comprises fuel tank 1, gear pump 2, fuel sucking pipe 3, return tube 4, mortor operated valve board component, motor 5, manually operated valve board component and hand pump 15, mortor operated valve board component comprises electronic valve plate 6, solenoid valve 7, the first one-way valve 8, relief valve 9 and delivery connection 10, electronic valve plate 6 is provided with the first suction passage 11, the first oil discharge passage 12, the first drainback passage 13, the second drainback passage 14, the first connecting passage 23, the second connecting passage 24 and the 3rd connecting passage 25, manually operated valve board component comprises manual valve plate 16, the second one-way valve 17, the 3rd one-way valve 18 and stop valve 19, manually valve plate 16 is provided with the second suction passage 20, the second oil discharge passage 21 and the 3rd drainback passage 22, electronic valve plate 6 is connected between gear pump 2 and motor 5, the output shaft of motor 5 is connected with gear pump 2 through electronic valve plate 6, fuel tank 1 is connected on gear pump 2, fuel sucking pipe 3 is all positioned at fuel tank 1 and is all connected with gear pump 2 with return tube 4, the first suction passage 11 entrance points communicate with fuel sucking pipe 3, the first suction passage 11 outlet end are connected and communicate with the first oil discharge passage 12 entrance points and the first drainback passage 13 entrance points simultaneously, the first oil discharge passage 12 outlet end places are provided with delivery connection 10, the first drainback passage 13 outlet end communicate with return tube 4, the first one-way valve 8 is arranged in the first suction passage 11, solenoid valve 7 is arranged on the first drainback passage 13, the second drainback passage 14 entrance points are connected and communicate with first suction passage 11 at the first one-way valve 8 entrance point places, the second drainback passage 14 outlet end communicate with return tube 4, relief valve 9 is arranged on the second drainback passage 14, manually valve plate 16 is connected with electronic valve plate 6, manually valve plate 16 is provided with pump seat 26, the second suction passage 20 entrance points are connected and communicate with first connecting passage 23 one end, the second suction passage 20 outlet end communicate with pump seat 26 bottoms, first connecting passage 23 the other ends are connected and communicate with first drainback passage 13 at solenoid valve 7 outlet end places, the second one-way valve 17 is arranged in the second suction passage 20, the second oil discharge passage 21 entrance points communicate with pump seat 26 bottoms, the second oil discharge passage 21 outlet end are connected and communicate with second connecting passage 24 one end, second connecting passage 24 the other ends are connected and communicate with first drainback passage 13 at solenoid valve 7 entrance point places, the 3rd one-way valve 18 is arranged on the second oil discharge passage 21, the entrance point of the 3rd drainback passage 22 is connected and communicates with the 3rd connecting passage 25 one end, the 3rd drainback passage 22 outlet end are connected and communicate with second suction passage 20 at the second one-way valve 17 entrance point places, the 3rd connecting passage 25 the other ends are connected and communicate with the first oil discharge passage 12, stop valve 19 is arranged on the 3rd drainback passage 22, hand pump 15 is connected to pump seat 26 places.
The working principle of the utility model hydraulic power unit is: as shown in figure 12, having electric in the situation that, gear pump 2 passes through fuel sucking pipe 3 liquid draw force feed from fuel tank 1 under motor 5 drives, after hydraulic oil flow into the first suction passage 11, can wash the first one-way valve 8 open and flow in the first oil discharge passage 12, and finally flow out for hydraulic system from delivery connection 10, in the time that hydraulic system is stopped using, open solenoid valve 7, now the hydraulic oil in hydraulic system will be back in the first oil discharge passage 12 from oily joint 10, then through being communicated with the first drainback passage 13 of the first oil discharge passage 12 and return tube 4, finally flow back in fuel tank 1, do not having electric in the situation that, user's manually-operable hand pump 15, now the hydraulic oil in fuel tank 1 will be in return tube 4 flow into the first drainback passage 13, then flow in the second suction passage 20 through the first connecting passage 23, now hydraulic oil can be washed the second one-way valve 17 open and enter into the second oil discharge passage 21 through pump seat 26, then through the second connecting passage 24 and the first oil discharge passage 12, and finally flow out for hydraulic system from delivery connection 10, in the time that hydraulic system is stopped using, open stop valve 19, now the hydraulic oil in hydraulic system will be back in the first oil discharge passage 12 from oily joint 10, then flow in the 3rd drainback passage 22 through the 3rd connecting passage 25, again through the second suction passage 20 and the first connecting passage 23, finally flow back in fuel tank 1 from return tube 4.
Above embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (1)
1. a hydraulic power unit, comprise fuel tank (1), gear pump (2), fuel sucking pipe (3), return tube (4), mortor operated valve board component and motor (5), described mortor operated valve board component comprises electronic valve plate (6), solenoid valve (7), the first one-way valve (8), relief valve (9) and delivery connection (10), described electronic valve plate (6) is provided with the first suction passage (11), the first oil discharge passage (12), the first drainback passage (13) and the second drainback passage (14), described electronic valve plate (6) is connected between gear pump (2) and motor (5), the output shaft of described motor (5) is connected with gear pump (2) through electronic valve plate (6), described fuel tank (1) is connected on gear pump (2), described fuel sucking pipe (3) is all positioned at fuel tank (1) and is all connected with gear pump (2) with return tube (4), described the first suction passage (11) entrance point communicates with fuel sucking pipe (3), described the first suction passage (11) outlet end is connected and communicates with the first oil discharge passage (12) entrance point and the first drainback passage (13) entrance point simultaneously, described the first oil discharge passage (12) outlet end place is provided with delivery connection (10), described the first drainback passage (13) outlet end communicates with return tube (4), described the first one-way valve (8) is arranged in the first suction passage (11), described solenoid valve (7) is arranged on the first drainback passage (13), described the second drainback passage (14) entrance point is connected and communicates with first suction passage (11) at the first one-way valve (8) entrance point place, described the second drainback passage (14) outlet end communicates with return tube (4), described relief valve (9) is arranged on the second drainback passage (14), it is characterized in that: described hydraulic power unit also includes manually operated valve board component and hand pump (15), described manually operated valve board component comprises manual valve plate (16), the second one-way valve (17), the 3rd one-way valve (18) and stop valve (19), described manual valve plate (16) is provided with the second suction passage (20), the second oil discharge passage (21) and the 3rd drainback passage (22), on described electronic valve plate (6), be also provided with the first connecting passage (23), the second connecting passage (24) and the 3rd connecting passage (25), described manual valve plate (16) is connected with electronic valve plate (6), described manual valve plate (16) is provided with pump seat (26), described the second suction passage (20) entrance point is connected and communicates with the first connecting passage (23) one end, described the second suction passage (20) outlet end communicates with pump seat (26) bottom, described the first connecting passage (23) the other end is connected and communicates with first drainback passage (13) at solenoid valve (7) outlet end place, described the second one-way valve (17) is arranged in the second suction passage (20), described the second oil discharge passage (21) entrance point communicates with pump seat (26) bottom, described the second oil discharge passage (21) outlet end is connected and communicates with the second connecting passage (24) one end, described the second connecting passage (24) the other end is connected and communicates with first drainback passage (13) at solenoid valve (7) entrance point place, described the 3rd one-way valve (18) is arranged on the second oil discharge passage (21), the entrance point of described the 3rd drainback passage (22) is connected and communicates with the 3rd connecting passage (25) one end, described the 3rd drainback passage (22) outlet end is connected and communicates with second suction passage (20) at the second one-way valve (17) entrance point place, described the 3rd connecting passage (25) the other end is connected and communicates with the first oil discharge passage (12), described stop valve (19) is arranged on the 3rd drainback passage (22), described hand pump (15) is connected to pump seat (26) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712523.XU CN203614517U (en) | 2013-11-12 | 2013-11-12 | Hydraulic power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712523.XU CN203614517U (en) | 2013-11-12 | 2013-11-12 | Hydraulic power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614517U true CN203614517U (en) | 2014-05-28 |
Family
ID=50767166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320712523.XU Expired - Fee Related CN203614517U (en) | 2013-11-12 | 2013-11-12 | Hydraulic power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117927517A (en) * | 2023-12-21 | 2024-04-26 | 江苏威博液压股份有限公司 | Integrated valve group of hydraulic power unit of rolling mill |
-
2013
- 2013-11-12 CN CN201320712523.XU patent/CN203614517U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117927517A (en) * | 2023-12-21 | 2024-04-26 | 江苏威博液压股份有限公司 | Integrated valve group of hydraulic power unit of rolling mill |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 |