CN206111706U - Hydraulic power unit - Google Patents
Hydraulic power unit Download PDFInfo
- Publication number
- CN206111706U CN206111706U CN201621079564.XU CN201621079564U CN206111706U CN 206111706 U CN206111706 U CN 206111706U CN 201621079564 U CN201621079564 U CN 201621079564U CN 206111706 U CN206111706 U CN 206111706U
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- valve
- filter
- hydraulic
- communicated
- check valve
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Abstract
The utility model discloses a hydraulic power unit, including first filter, first filter top intercommunication has the hydraulic pump, the hydraulic pump right side is equipped with the motor of drive hydraulic pump, hydraulic pump one end has ratio pressure reducing valve through the pipeline intercommunication, the ratio pressure reducing valve intercommunication has first switching -over valve and second switching -over valve, first switching -over valve top intercommunication has first check valve and second check valve, first check valve and second check valve top communicate respectively has second filter and third filter, second filter and third filter communicate in the hydraulic fluid port of first pneumatic cylinder through the pipeline respectively, first switching -over valve and second switching -over valve bottom hydraulic fluid port all have the second overflow valve through the pipeline intercommunication, the second overflow valve passes through the pipeline and communicates in the oil tank. The utility model discloses a ratio pressure reducing valve can nimble adjust pressure for the system pressure no longer is the pressure of fixing, can carry out nimble regulation by according to actual need.
Description
Technical field
This utility model is related to fluid pressure control device technical field, specially a kind of hydraulic power unit.
Background technology
Hydraulic power unit is the common apparatus in hydraulic system, generally includes fuel tank, gear pump, fuel sucking pipe, oil return pipe,
Valve block, motor, valve block is connected between motor and gear pump, and the output shaft of motor connects through valve block and gear pump, gear pump
In being immersed in fuel tank, fuel sucking pipe and oil return pipe are respectively positioned in fuel tank, are all connected on gear pump.Fuel sucking pipe is communicated with in-line,
Oil return pipe is identical with return line.When hydraulic power unit works, motor operation simultaneously drives gear pump to rotate by attachment means,
Under gear pumping action, the hydraulic oil in fuel tank is inhaled into valve block through fuel sucking pipe, by solenoid valve control hydraulic jack action,
The hydraulic oil that hydraulic cylinder is returned flows back to fuel tank by return line.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic power unit, to solve above-mentioned background technology in propose ask
Topic.
For achieving the above object, this utility model provides following technical scheme：A kind of hydraulic power unit, including the first mistake
Filter, first filter top is communicated with hydraulic pump, and the hydraulic pump right side is provided with the motor for driving hydraulic pump, the liquid
Press pump one end is communicated with the first reversal valve and the second reversal valve by the proportional air relief valve of pipeline communication, the proportional pressure-reducing valve,
The first reversal valve top is communicated with the first check valve and the second check valve, first check valve and the second check valve top
Be respectively communicated with the second filter and the 3rd filter, second filter and the 3rd filter respectively by pipeline communication in
The hydraulic fluid port of first hydraulic cylinder, the second reversal valve top is communicated with the 3rd check valve and the 4th check valve, and the described 3rd is unidirectional
Valve and the 4th check valve top have been respectively communicated with the 4th filter and the 5th filter, the 4th filter and the 5th filter
Respectively pipe is passed through in the hydraulic fluid port of second hydraulic cylinder, first reversal valve and the second reversal valve bottom hydraulic fluid port by pipeline communication
Road is communicated with the second overflow valve, and second overflow valve is by pipeline communication in fuel tank.
Preferably, first reversal valve and the second reversal valve are three position four-way directional control valve.
Preferably, the hydraulic pump is communicated on the pipeline of proportional pressure-reducing valve and is communicated with the first overflow valve, and described first overflows
Stream valve is communicated with the pipeline for being back to fuel tank.
Preferably, the proportional pressure-reducing valve is communicated in fuel tank.
Compared with prior art, the beneficial effects of the utility model are：This utility model adoption rate air relief valve, can be with spirit
It is living to adjust pressure so that system pressure is no longer fixed pressure, can according to actual needs carry out flexible.
Description of the drawings
Fig. 1 is this utility model hydraulic control flow chart.
In figure：1 first filter, 2 hydraulic pumps, 3 motors, 4 first overflow valves, 5 second overflow valves, 6 proportional pressure-reducing valves, 7
First reversal valve, 8 second reversal valves, 9 first check valves, 10 second check valves, 11 the 3rd check valves, 12 the 4th check valves, 13
Second filter, 14 the 3rd filters, 15 the 4th filters, 16 the 5th filters, 17 first hydraulic cylinders, 18 second hydraulic cylinders.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1 is referred to, this utility model provides a kind of technical scheme：A kind of hydraulic power unit, including the first filter
1, the top of first filter 1 is communicated with hydraulic pump 2, and the right side of the hydraulic pump 2 is provided with the motor 3 for driving hydraulic pump 2, described
The one end of hydraulic pump 2 is communicated with the first reversal valve 7 and second and is changed by the proportional air relief valve 6 of pipeline communication, the proportional pressure-reducing valve 6
To valve 8, the top of first reversal valve 7 is communicated with the first check valve 9 and the second check valve 10, first check valve 9 and the
The top of two check valve 10 has been respectively communicated with the second filter 13 and the 3rd filter 14, and second filter 13 and the 3rd is filtered
Respectively by pipeline communication in the hydraulic fluid port of first hydraulic cylinder 17, the top of second reversal valve 8 is communicated with the 3rd check valve to device 14
11 and the 4th check valve 12, the 3rd check valve 11 and the top of the 4th check valve 12 have been respectively communicated with the 4th filter 15 and the
Five filters 16, the 4th filter 15 and the 5th filter 16 are respectively by pipeline communication in the oil of second hydraulic cylinder 18
Mouthful, the bottom hydraulic fluid port of 7 and second reversal valve of the first reversal valve 8 has the second overflow valve 5 by pipeline communication, and described second overflows
Stream valve 5 is by pipeline communication in fuel tank.
The reversal valve 8 of first reversal valve 7 and second is three position four-way directional control valve.The hydraulic pump 2 is communicated in ratio
The first overflow valve 4 is communicated with the pipeline of air relief valve 6, first overflow valve 4 is communicated with the pipeline for being back to fuel tank.The ratio
Example air relief valve 6 is communicated in fuel tank.
Specifically, when using, motor 3 connects power supply rotation, drives hydraulic pump 2 to rotate, from hydraulic pump 2 to whole hydraulic system
Supply hydraulic fluid, the first filter 1 filters hydraulic oil apoplexy involving ZANG-organ thing, it is to avoid clogging hydraulic oil circuit.First overflow valve 4 is made safely
With when hydraulic fluid pressure is excessive, the first overflow valve 4 is opened, and hydraulic oil is flowed in fuel tank from the first overflow valve 4, is reduced and is
System pressure, whole hydraulic system has four check valves, and the first check valve 9, the second check valve 10, the 3rd check valve 11 and the 4th are single
To valve 12, this 4 check valves are segmented into 2 groups, and the first check valve 9 and the second check valve 10 are one group, the 3rd check valve 11
It it is one group with the 4th check valve 12.Per group of 2 check valves interact.When hydraulic oil enters hydraulic cylinder from the first check valve 9
When, while also can pressurize to the second check valve 10 so that the second check valve 10 is also at open mode, hydraulic oil will be through
One check valve 9 flows into hydraulic cylinder, then flows back to fuel tank through the second check valve 10 from hydraulic cylinder.When hydraulic oil is from the second check valve 10
When flowing into hydraulic cylinder, reason is same, and the first check valve 9 also can be opened because of pressure, and hydraulic oil also can be from hydraulic cylinder through first
Check valve 9 flows back to oil cylinder.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case of without departing from principle of the present utility model and spirit, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of hydraulic power unit, including the first filter（1）, it is characterised in that：First filter（1）Top connection
There is hydraulic pump（2）, the hydraulic pump（2）Right side is provided with driving hydraulic pump（2）Motor（3）, the hydraulic pump（2）One end passes through
The proportional air relief valve of pipeline communication（6）, the proportional pressure-reducing valve（6）It is communicated with the first reversal valve（7）With the second reversal valve（8）,
First reversal valve（7）Top is communicated with the first check valve（9）With the second check valve（10）, first check valve（9）With
Second check valve（10）Top has been respectively communicated with the second filter（13）With the 3rd filter（14）, second filter（13）
With the 3rd filter（14）Respectively by pipeline communication in first hydraulic cylinder（17）Hydraulic fluid port, second reversal valve（8）Top
It is communicated with the 3rd check valve（11）With the 4th check valve（12）, the 3rd check valve（11）With the 4th check valve（12）Top point
It is not communicated with the 4th filter（15）With the 5th filter（16）, the 4th filter（15）With the 5th filter（16）Respectively
By pipeline communication in second hydraulic cylinder（18）Hydraulic fluid port, first reversal valve（7）With the second reversal valve（8）Bottom hydraulic fluid port is equal
There is the second overflow valve by pipeline communication（5）, second overflow valve（5）By pipeline communication in fuel tank.
2. a kind of hydraulic power unit according to claim 1, it is characterised in that：First reversal valve（7）With second
Reversal valve（8）It is three position four-way directional control valve.
3. a kind of hydraulic power unit according to claim 1, it is characterised in that：The hydraulic pump（2）It is communicated in ratio
Air relief valve（6）Pipeline on be communicated with the first overflow valve（4）, first overflow valve（4）It is communicated with the pipeline for being back to fuel tank.
4. a kind of hydraulic power unit according to claim 1, it is characterised in that：The proportional pressure-reducing valve（6）It is communicated in
Fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079564.XU CN206111706U (en) | 2016-09-26 | 2016-09-26 | Hydraulic power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079564.XU CN206111706U (en) | 2016-09-26 | 2016-09-26 | Hydraulic power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111706U true CN206111706U (en) | 2017-04-19 |
Family
ID=58521822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079564.XU Active CN206111706U (en) | 2016-09-26 | 2016-09-26 | Hydraulic power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337848A (en) * | 2016-09-26 | 2017-01-18 | 东洋重工机（大连）有限公司 | Hydraulic power unit |
| CN114233708A (en) * | 2021-12-15 | 2022-03-25 | 中国航发动力股份有限公司 | Hydraulic control system and method for positioning dividing plate |
-
2016
- 2016-09-26 CN CN201621079564.XU patent/CN206111706U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337848A (en) * | 2016-09-26 | 2017-01-18 | 东洋重工机（大连）有限公司 | Hydraulic power unit |
| CN114233708A (en) * | 2021-12-15 | 2022-03-25 | 中国航发动力股份有限公司 | Hydraulic control system and method for positioning dividing plate |
| CN114233708B (en) * | 2021-12-15 | 2023-11-24 | 中国航发动力股份有限公司 | Hydraulic control system and method for indexing plate positioning |
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