CN201526548U - Hydraulic double-pump power driving device - Google Patents
Hydraulic double-pump power driving device Download PDFInfo
- Publication number
- CN201526548U CN201526548U CN2009202203861U CN200920220386U CN201526548U CN 201526548 U CN201526548 U CN 201526548U CN 2009202203861 U CN2009202203861 U CN 2009202203861U CN 200920220386 U CN200920220386 U CN 200920220386U CN 201526548 U CN201526548 U CN 201526548U
- Authority
- CN
- China
- Prior art keywords
- hydraulic pump
- pump
- control system
- hydraulic
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a hydraulic double-pump power driving device which comprises an oil tank, a motor and a first hydraulic pump. The first hydraulic pump is connected with the oil tank and is electrically connected with the motor through a first coupling. The hydraulic double-pump power driving device further comprises a second hydraulic pump which is connected with the first hydraulic pump in parallel. The second hydraulic pump is respectively connected with the oil tank and the motor. The first hydraulic pump and the second hydraulic pump are respectively connected with a first high-pressure oil way and a second high-pressure oil way through a first check valve and a second check valve. Compared with the prior art, the hydraulic double-pump power driving device has the following advantages: overcoming the defects of low efficiency of a valve control system, and slow response and low precision of a pump control system in the engineering machinery; comprehensively utilizing the advantages of high response and high precision of a valve control system, and high efficiency of the pump control system; and reducing the cost of components. The operation state of device and product quality can both effectively guaranteed.
Description
Technical field
The utility model relates to a kind of Hydraulic Double pump power drive unit.
Background technique
In the prior art, valve control system and pump control system are originally adopted in the motivational drive of engineering machinery mostly.Though the valve control system response is very fast, precision is higher, there is the defective of inefficiency; Though and pump control system efficient is higher, low-response, precision are low.Through improving, engineering machinery has been used the oil hydraulic pump Power Drive Unit mostly.But, be easy to generate the phenomenon of equipment work instability, unstable product quality during its work because mostly be single pump-unit.
The model utility content
Technical problem to be solved in the utility model is, at above-mentioned prior art present situation, and a kind of efficient height is provided, response is fast, precision is high, equipment work is stable, the Hydraulic Double pump power drive unit of constant product quality.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of Hydraulic Double pump power drive unit, comprise fuel tank, motor, first oil hydraulic pump, described first oil hydraulic pump connects described fuel tank, and be connected with described motor by a coupling, it is characterized in that: also comprise second oil hydraulic pump in parallel with described first oil hydraulic pump, described second oil hydraulic pump is connected with described fuel tank, motor respectively; Described first oil hydraulic pump, second oil hydraulic pump connect first high-pressure oil passage, second high-pressure oil passage by first one-way valve, second one-way valve respectively.
Compared with prior art, advantage of the present utility model is, it overcomes valve control system inefficiency and the low defective of pump control system low-response precision in the engineering machinery, has fully utilized valve control system high response highi degree of accuracy and the high efficiency advantage of pump control system, has reduced the cost of element.The working state of its equipment and the quality of product can effectively be ensured.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Be labeled as among the figure:
1, fuel tank; 2, motor; 3, first oil hydraulic pump; 4, second oil hydraulic pump; 5, first one-way valve; 6, second one-way valve; 7, first high-pressure oil passage; 8, second high-pressure oil passage.
Embodiment
According to embodiment and accompanying drawing the utility model is described in further detail below.
As shown in Figure 1, a kind of Hydraulic Double pump power drive unit, comprise fuel tank 1, motor 2, first oil hydraulic pump 3, described first oil hydraulic pump 3 connects described fuel tank 1, and be electrically connected with described motor 2 by a coupling, also comprise one with described first oil hydraulic pump 3 second oil hydraulic pump 4 in parallel, described second oil hydraulic pump 4 is connected with described fuel tank 1, motor 2 respectively; Described first oil hydraulic pump 3, second oil hydraulic pump 4 connect first high-pressure oil passage 7, second high-pressure oil passage 8 by first one-way valve 5, second one-way valve 6 respectively.
Claims (1)
1. Hydraulic Double pump power drive unit, comprise fuel tank (1), motor (2), first oil hydraulic pump (3), described first oil hydraulic pump (3) connects described fuel tank (1), and be electrically connected with described motor (2) by a coupling, it is characterized in that: also comprise second oil hydraulic pump (4) in parallel with described first oil hydraulic pump (3), described second oil hydraulic pump (4) is connected with described fuel tank (1), motor (2) respectively; Described first oil hydraulic pump (3), second oil hydraulic pump (4) connect first high-pressure oil passage (7), second high-pressure oil passage (8) by first one-way valve (5), second one-way valve (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202203861U CN201526548U (en) | 2009-10-30 | 2009-10-30 | Hydraulic double-pump power driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202203861U CN201526548U (en) | 2009-10-30 | 2009-10-30 | Hydraulic double-pump power driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526548U true CN201526548U (en) | 2010-07-14 |
Family
ID=42517835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202203861U Expired - Fee Related CN201526548U (en) | 2009-10-30 | 2009-10-30 | Hydraulic double-pump power driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526548U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030266A (en) * | 2011-01-14 | 2011-04-27 | 徐州重型机械有限公司 | Crane and hydraulic control system thereof |
| CN102297170A (en) * | 2011-06-10 | 2011-12-28 | 中国一拖集团有限公司 | Hydraulic system of multifunctional snow sweeper |
| CN104747541A (en) * | 2015-03-24 | 2015-07-01 | 上海大学 | Hydraulic power station of grouting pump |
| CN104776003A (en) * | 2014-07-17 | 2015-07-15 | 飞翼股份有限公司 | Piston type industrial conveying pump |
| CN105673599A (en) * | 2016-03-15 | 2016-06-15 | 陕西理工学院 | Friction welding machine hydraulic system for controlling axial lengths of welded parts, and control method |
-
2009
- 2009-10-30 CN CN2009202203861U patent/CN201526548U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030266A (en) * | 2011-01-14 | 2011-04-27 | 徐州重型机械有限公司 | Crane and hydraulic control system thereof |
| CN102030266B (en) * | 2011-01-14 | 2013-04-10 | 徐州重型机械有限公司 | Crane and hydraulic control system thereof |
| CN102297170A (en) * | 2011-06-10 | 2011-12-28 | 中国一拖集团有限公司 | Hydraulic system of multifunctional snow sweeper |
| CN104776003A (en) * | 2014-07-17 | 2015-07-15 | 飞翼股份有限公司 | Piston type industrial conveying pump |
| CN104776003B (en) * | 2014-07-17 | 2016-05-11 | 飞翼股份有限公司 | A kind of piston type industry delivery pump |
| CN104747541A (en) * | 2015-03-24 | 2015-07-01 | 上海大学 | Hydraulic power station of grouting pump |
| CN105673599A (en) * | 2016-03-15 | 2016-06-15 | 陕西理工学院 | Friction welding machine hydraulic system for controlling axial lengths of welded parts, and control method |
| CN105673599B (en) * | 2016-03-15 | 2017-02-08 | 陕西理工学院 | Friction welding machine hydraulic system for controlling axial lengths of welded parts, and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201526548U (en) | Hydraulic double-pump power driving device | |
| CN201513115U (en) | High-low double-speed pressurizing system of rotary drilling rig | |
| CN203769811U (en) | Self-help supercharging system with hydraulic supercharger and upright columns for hydraulic support | |
| CN201386294Y (en) | Double-power device for construction machinery | |
| CN201934406U (en) | Hydraulic control system | |
| CN204899897U (en) | Double dynamical fracturing unit truck | |
| CN203114798U (en) | Energy-saving servo hydraulic station | |
| CN102003432A (en) | Electro-hydraulic actuator | |
| CN201659978U (en) | Mine cableway double-power hydraulic station | |
| CN101424280A (en) | Self control type single-machine double-pump hydraulic power station | |
| CN204900413U (en) | Hydraulic cylinder durability test system | |
| CN201420729Y (en) | Electric hydraulic torque wrench pump | |
| CN103603833A (en) | Constant pressure oil circuit control device | |
| CN202744231U (en) | Oil storage moving pump station for tower crane | |
| CN203144016U (en) | Ultrahigh voltage electric hydraulic pump station | |
| CN203239686U (en) | Oil supplementing system for hydraulic motor | |
| CN203023157U (en) | Hydraulic double pump power driven device with isolation valve | |
| CN201874923U (en) | Electro-hydraulic actuator | |
| CN201420667Y (en) | Servo hydraulic pump station structure with by-pass unloading | |
| CN202417866U (en) | Container charging and discharging circulation device | |
| CN202132035U (en) | Wellhead pressure testing device for oil well | |
| CN202479689U (en) | Power drive device for hydraulic system of press welder | |
| CN202451481U (en) | Pressure control loop | |
| CN102941681A (en) | Quick ejection structure for hydraulic cushion | |
| CN104386618A (en) | Pressure compensating unloading loop of shearing type lifting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20111030 |