CN202900841U - Hydraulic pump station - Google Patents

Hydraulic pump station Download PDF

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Publication number
CN202900841U
CN202900841U CN 201220533831 CN201220533831U CN202900841U CN 202900841 U CN202900841 U CN 202900841U CN 201220533831 CN201220533831 CN 201220533831 CN 201220533831 U CN201220533831 U CN 201220533831U CN 202900841 U CN202900841 U CN 202900841U
Authority
CN
China
Prior art keywords
oil
valve
outlet
pressure column
pump
Prior art date
Application number
CN 201220533831
Other languages
Chinese (zh)
Inventor
张春来
Original Assignee
天津市泽龙仪表有色金属铸造有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 天津市泽龙仪表有色金属铸造有限公司 filed Critical 天津市泽龙仪表有色金属铸造有限公司
Priority to CN 201220533831 priority Critical patent/CN202900841U/en
Application granted granted Critical
Publication of CN202900841U publication Critical patent/CN202900841U/en

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Abstract

The utility model provides a hydraulic pump station which comprises a pump set and an oil tank. The pump set comprises an oil pump and a motor. An inlet of the oil pump is connected with the oil tank. The oil pump adopts a six-plunger inclined plate type axial plunger double-oil-duct pump. Three low pressure plunger rods and three high pressure plunger rods are alternately arranged and compensate each other, and automatic pressure exchange and automatic oil return are achieved. An outlet of the oil pump passes through a one-way valve and is divided into two branches, and outputs a plurality of oil outlets. The hydraulic pump station has the advantages that the hydraulic pump station is provided with a two-way oil-way, due to the fact that direction changes are carried out by a reversing valve, when a two-way action oil cylinder is used for a jack with a spring return stroke, the other direction of the reversing valve can be conveniently closed, and two or four jacks or hydraulic tools can be conveniently and simultaneously driven.

Description

A kind of hydraulic power unit
Technical field
The utility model relates to the oil hydraulic pump technical field, relates in particular to a kind of hydraulic power unit.
Background technique
In the prior art, the oil outlet of hydraulic power unit is less, and is unidirectional oil circuit, can not drive simultaneously two or four jack or hydraulic tools; Or because of its function requirement, its volume is very large, and weight ratio is heavier, in the process of using, will have certain narrow limitation.
The model utility content
For the problems referred to above, problem to be solved in the utility model provides a kind of hydraulic power unit with two-way oil circuit.
The technical solution of the utility model is as follows:
A kind of hydraulic power unit, comprise pump assembly and fuel tank, described pump assembly comprises oil pump and motor, the import connected tank of described oil pump, described oil pump is two oil duct pumps, the outlet of described oil pump is divided into two branch roads behind one-way valve, the first branch road connects the import of a solenoid directional control valve, an outlet of described solenoid directional control valve is exported as oil-feed port through Pilot operated check valve and stacked unidirectional throttle valve, another outlet is exported as return opening through Pilot operated check valve and stacked unidirectional throttle valve, draws the fuel tank through stop valve on the described oil outlet; The second branch road connects the import of a solenoid directional control valve through stacked compression release valve, one outlet connected tank of described stacked compression release valve, as oil-feed port, another outlet is exported as return opening through stacked unidirectional throttle valve through stacked unidirectional throttle valve output in an outlet of described solenoid directional control valve; Draw one the tunnel in the import of described the first branch road and connect electromagnetic relief valve, an outlet connected tank of described electromagnetic relief valve.
Further, draw the branch road that connects electromagnetic relief valve, the electromagnetic relief valve connected tank in the outlet of the one-way valve of described pump assembly outlet port connection.
Further, all be connected to pressure gauge in the import of the stacked compression release valve on described the second branch road and the outlet.
Further, be provided with air-strainer in the fuel tank that described oil pump inlet connects, the fuel tank outside is provided with level meter.
Further, described oil pump adopts the two oil duct pumps of six plunger sloping plate formula axial plungers, comprise three lower pressure column stopper rods and three high-pressure column stopper rods, the lower pressure column plug sleeve of lower pressure column stopper rod outside, the high-pressure column plug sleeve of high-pressure column stopper rod outside, the low pressure fuel sucking pipe of lower pressure column plug sleeve bottom and the high pressure fuel sucking pipes of high-pressure column plug sleeve bottom of inclined disc type main shaft, alternate setting, described inclined disc type main shaft is arranged on the top of three lower pressure column stopper rods and three high-pressure column stopper rods; Described oil pump uses low pressure and mass flow during less than 18Mpa when pressure; When pressure uses high-pressure low-flow during greater than 18Mpa, pressure according to load variations from moving pressure.
The beneficial effects of the utility model are: owing to adopt technique scheme, has two-way oil circuit, by the selector valve commutation, when the convenient bidirectional action oil cylinder is used for having the jack of spring return, can with another of selector valve to closing, can drive simultaneously two or four jack or hydraulic tools; Than with the hydraulic power unit of power lightweight, volume is little, be convenient to that carrying is mobile, convenient to be used for all kinds of hydraulic tools.
Description of drawings
Fig. 1 is hydraulic schematic diagram of the present utility model;
Fig. 2 is the side sectional view of the utility model oil pump;
Fig. 3 is the top sectional view of the utility model oil pump.
Wherein: 1, fuel tank 2, oil pump 3, one-way valve
4, solenoid directional control valve 5, Pilot operated check valve 6, stacked unidirectional throttle valve
7, stacked compression release valve 8, stop valve 9, electromagnetic relief valve
10, relief valve 11, pressure gauge 12, air-strainer
13, level meter 14, inclined disc type main shaft 15, high-pressure column stopper rod
16, high-pressure column plug sleeve 17, high pressure fuel sucking pipe 18, lower pressure column stopper rod
19, lower pressure column plug sleeve 20, low pressure fuel sucking pipe 21, oil drain out
Embodiment
Below in conjunction with accompanying drawing a kind of preferred embodiment of the present utility model is made brief description.
As shown in Figure 1:
A kind of hydraulic power unit comprises pump assembly and fuel tank 1, and described pump assembly comprises oil pump 2 and motor, the import connected tank 1 of described oil pump 2, and described oil pump 2 adopts the two oil duct pumps of six plunger sloping plate formula axial plungers; The outlet of described oil pump 2 is divided into two branch roads behind one-way valve 3, the first branch road connects the import of a solenoid directional control valve 4, an outlet of described solenoid directional control valve 4 is exported as oil-feed port through Pilot operated check valve 5 and stacked unidirectional throttle valve 6, another outlet is exported as return opening through Pilot operated check valve 5 and stacked unidirectional throttle valve 6, draws the fuel tank 1 through stop valve 8 on the described oil outlet; The second branch road connects the import of a solenoid directional control valve 4 through stacked compression release valve 7, one outlet connected tank 1 of described stacked compression release valve 7, as oil-feed port, another outlet is exported as return opening through stacked unidirectional throttle valve 6 through stacked unidirectional throttle valve 6 outputs in an outlet of described solenoid directional control valve 4; Draw one the tunnel in the import of described the first branch road and connect electromagnetic relief valve 9, an outlet connected tank 1 of described electromagnetic relief valve 9;
Draw the branch road that connects relief valve 10, relief valve 10 connected tanks 1 in the outlet of the one-way valve 3 that described oil pump 2 outlet ports connect;
All be connected to pressure gauge 11 in the import of the stacked compression release valve 6 on described the second branch road and the outlet;
Be provided with air-strainer 12 in the fuel tank 1 that described oil pump 2 inlets connect, fuel tank 1 outside is provided with level meter 13.
Described oil pump 2 adopts the two oil duct pumps of six plunger sloping plate formula axial plungers, comprise three lower pressure column stopper rods 18 and three high-pressure column stopper rods 15, the lower pressure column plug sleeve 19 of lower pressure column stopper rod 18 outsides, the high-pressure column plug sleeve 16 of high-pressure column stopper rod 15 outsides, the low pressure fuel sucking pipe 20 of lower pressure column plug sleeve 18 bottoms and the high pressure fuel sucking pipes 17 of high-pressure column plug sleeve 16 bottoms of inclined disc type main shaft 14, alternate setting, described inclined disc type main shaft 14 is arranged on the top of three lower pressure column stopper rods 18 and three high-pressure column stopper rods 15.
Use low pressure and mass flow during idle stroke, use high-pressure low-flow during working stroke, can obtain large pressure tonnage (500 tons), this moment is from moving the pressure automatic oil return, and described oil pump 2 is when pressure use low pressure and mass flow during less than 18Mpa; When pressure uses high-pressure low-flow during greater than 18Mpa, pressure according to load variations from moving pressure.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.

Claims (5)

1. hydraulic power unit, comprise pump assembly and fuel tank, described pump assembly comprises oil pump and motor, the import connected tank of described oil pump, it is characterized in that: described oil pump is two oil duct pumps, the outlet of described oil pump is divided into two branch roads behind one-way valve, the first branch road connects the import of a solenoid directional control valve, an outlet of described solenoid directional control valve is exported as oil-feed port through Pilot operated check valve and stacked unidirectional throttle valve, another outlet is exported as return opening through Pilot operated check valve and stacked unidirectional throttle valve, draws the fuel tank through stop valve on the described oil outlet; The second branch road connects the import of a solenoid directional control valve through stacked compression release valve, one outlet connected tank of described stacked compression release valve, as oil-feed port, another outlet is exported as return opening through stacked unidirectional throttle valve through stacked unidirectional throttle valve output in an outlet of described solenoid directional control valve; Draw one the tunnel in the import of described the first branch road and connect electromagnetic relief valve, an outlet connected tank of described electromagnetic relief valve.
2. hydraulic power unit according to claim 1 is characterized in that: draw the branch road that connects electromagnetic relief valve, the electromagnetic relief valve connected tank in the outlet of the one-way valve that described oil pump outlet port connects.
3. hydraulic power unit according to claim 1 is characterized in that: all be connected to pressure gauge in the import of the stacked compression release valve on described the second branch road and the outlet.
4. hydraulic power unit according to claim 1 is characterized in that: be provided with air-strainer in the fuel tank that described oil pump inlet connects, the fuel tank outside is provided with level meter.
5. hydraulic power unit according to claim 1, it is characterized in that: described oil pump adopts the two oil duct pumps of six plunger sloping plate formula axial plungers, comprise three lower pressure column stopper rods and three high-pressure column stopper rods, the lower pressure column plug sleeve of lower pressure column stopper rod outside, the high-pressure column plug sleeve of high-pressure column stopper rod outside, the low pressure fuel sucking pipe of lower pressure column plug sleeve bottom and the high pressure fuel sucking pipes of high-pressure column plug sleeve bottom of inclined disc type main shaft, alternate setting, described inclined disc type main shaft is arranged on the top of three lower pressure column stopper rods and three high-pressure column stopper rods.
CN 201220533831 2012-10-17 2012-10-17 Hydraulic pump station CN202900841U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220533831 CN202900841U (en) 2012-10-17 2012-10-17 Hydraulic pump station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220533831 CN202900841U (en) 2012-10-17 2012-10-17 Hydraulic pump station

Publications (1)

Publication Number Publication Date
CN202900841U true CN202900841U (en) 2013-04-24

Family

ID=48121517

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220533831 CN202900841U (en) 2012-10-17 2012-10-17 Hydraulic pump station

Country Status (1)

Country Link
CN (1) CN202900841U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273681A (en) * 2013-05-08 2013-09-04 常熟通润汽车修理设备有限公司 Fast hydraulic power pack structure
CN105465067A (en) * 2015-12-09 2016-04-06 沈阳飞研航空设备有限公司 Multifunctional combined pump
CN106837729A (en) * 2017-02-07 2017-06-13 陕西航天德林科技集团有限公司 Plunger displacement pump
CN107725502A (en) * 2016-08-10 2018-02-23 湖北精功科技有限公司 A kind of garbage compression station hydraulic unloading buffer unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103273681A (en) * 2013-05-08 2013-09-04 常熟通润汽车修理设备有限公司 Fast hydraulic power pack structure
CN103273681B (en) * 2013-05-08 2014-12-24 常熟通润汽车修理设备有限公司 Fast hydraulic power pack structure
CN105465067A (en) * 2015-12-09 2016-04-06 沈阳飞研航空设备有限公司 Multifunctional combined pump
CN107725502A (en) * 2016-08-10 2018-02-23 湖北精功科技有限公司 A kind of garbage compression station hydraulic unloading buffer unit
CN106837729A (en) * 2017-02-07 2017-06-13 陕西航天德林科技集团有限公司 Plunger displacement pump
CN106837729B (en) * 2017-02-07 2019-05-17 陕西航天德林科技集团有限公司 The plunger pump of hydraulic system

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