CN205937309U - Hydraulic servo valve test bench hydraulic system - Google Patents
Hydraulic servo valve test bench hydraulic system Download PDFInfo
- Publication number
- CN205937309U CN205937309U CN201620946326.8U CN201620946326U CN205937309U CN 205937309 U CN205937309 U CN 205937309U CN 201620946326 U CN201620946326 U CN 201620946326U CN 205937309 U CN205937309 U CN 205937309U
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- China
- Prior art keywords
- valve
- hydraulic
- pressure
- servo
- pipeline
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- 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
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Abstract
The utility model relates to a hydraulic servo valve test bench hydraulic system, including the hydraulic pump, the oil tank is connected through advancing oil pipe to the input of hydraulic pump, the output of hydraulic pump connects gradually board -like ball valve through the pipeline, two branch oil pipe are connected, one to the output of board -like ball valve branch oil pipe connects relief pressure valve, first manometer and waits to detect the P mouth of servovalve, another branch oil pipe connect gradually the relief valve with the oil tank, the T mouth of waiting to detect the servovalve through the pipeline connect gradually choke valve, second manometer and the oil tank, install a third manometer and a pressure sensor waiting the A mouth exit of detecting the servovalve, install fourth manometer and the 2nd pressure sensor waiting the B mouth exit of detecting the servovalve. The utility model discloses have the factor of safety height, can ensure whole hydraulic pressure hydraulic system safety at the in -process that uses, have the function of carrying out the static performance test to electric liquid stream volume servovalve.
Description
Technical field
This utility model is related to a kind of hydraulic pressure maintenance unit, more particularly, to a kind of hydraulic efficiency servo-valve testing stand hydraulic system.
Background technology
Servo valve is the key element in electro-hydraulic servo control, and it is after one kind accepts analog electrical signal, and corresponding output is adjusted
The flow of system and the hydraulic control valve of pressure.Electrohydraulic servo valve has that dynamic response is fast, control accuracy is high, long service life etc. is excellent
Point, is widely used in the electrohydraulic servo-controlling system in the fields such as Aeronautics and Astronautics, naval vessel, metallurgy, chemical industry.Servo valve conduct
" heart " of electrohydraulic control system, its quality quality directly influences the control accuracy of whole electrohydraulic control system, therefore it
Detection is particularly important with maintenance.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of hydraulic efficiency servo-valve testing stand hydraulic system, structure letter
Single, can ensure that whole hydraulic pressure hydraulic system safety during using, have and static properties is carried out to electro-hydraulic serving volume valve
The function of test.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of hydraulic efficiency servo-valve testing stand hydraulic pressure system
System, including hydraulic pump and fuel tank, the input of described hydraulic pump connects described fuel tank, the output of described hydraulic pump by oil inlet pipe
Pipe connecting formula ball valve is passed through at end, and the outfan of described board-like ball valve connects two branch oil pipes, and a described branch oil pipe is successively
The P mouth of connection air relief valve, first pressure table and servo valve to be detected, the input of another branch oil pipe connection safety valve, described
The outfan of relief valve connects described fuel tank by pipeline；
The T mouth of servo valve to be detected is sequentially connected choke valve, second pressure table and described fuel tank by pipeline；
The A mouth of servo valve to be detected separates three oil circuits, and an oil circuit connects the outfan of the first proportional throttle valve, separately
One oil circuit connects the input of the first check valve, and the outfan of described first check valve is defeated with described first proportional throttle valve
Enter end connection, the 3rd branch circuit parallel connection the 3rd pressure gauge and first pressure sensor；
The B mouth of servo valve to be detected separates three oil circuits, and a branch road connects the outfan of the second proportional throttle valve, another
Branch road connects the input of the second check valve, the input of the outfan of described second check valve and described second proportional throttle valve
Connect, the 3rd oil circuit connects the 4th pressure gauge and second pressure sensor.
The beneficial effects of the utility model are：This utility model has safety coefficient height, can ensure that during using
Whole hydraulic pressure hydraulic system safety, has the function that electro-hydraulic serving volume valve is carried out with static properties test.
On the basis of technique scheme, this utility model can also do following improvement.
Further, described oil inlet pipe is provided with high pressure filter.
Beneficial effect using above-mentioned further scheme is：The setting of high pressure filter can be filtered to oil-feed, it is to avoid
Containing impurity, whole test system and servo valve are impacted in oil.
Further, the pipeline between described hydraulic pump and described board-like ball valve is provided with the 3rd check valve.
Beneficial effect using above-mentioned further scheme is：The setting of the 3rd check valve is avoided that the oil backflow in pipeline.
Further, the pipeline between described hydraulic pump and described board-like ball valve is provided with deafener.
Using above-mentioned further beneficial effect it is：The setting of deafener can eliminate the noise in oily course of conveying in pipeline
Pollution.
Further, the pipeline between the outfan of described board-like ball valve and described air relief valve is provided with accumulator.
Beneficial effect using above-mentioned further scheme is：The setting of accumulator is used for buffering the pressure fluctuation of pump.
Further, described first pressure table, described second pressure table, described 3rd pressure gauge, described 4th pressure gauge with
All it is sequentially provided with the 4th check valve and stop valve between pipeline.
Beneficial effect using above-mentioned further scheme is：The setting of the 4th check valve and stop valve can be to first pressure
Table, second pressure table, the 3rd pressure gauge, the 4th pressure gauge are protected, and when oil pressure is too high, can pass through to close stop valve,
The damage that so first pressure table, second pressure table, the 3rd pressure gauge, the 4th pressure gauge build-up of pressure up to would not be led to
Bad, improve service life.
Brief description
Fig. 1 is structural representation of the present utility model；
In accompanying drawing, the list of parts representated by each label is as follows：
1st, hydraulic pump, 2, oil inlet pipe, 3, fuel tank, 4, board-like ball valve, 5, air relief valve, 6, first pressure table, 7, to be detected watch
Take valve, 8, relief valve, 9, choke valve, 10, second pressure table, the 11, first proportional throttle valve, the 12, first check valve, the 13, the 3rd
Pressure gauge, 14, first pressure sensor, the 15, second check valve, the 16, second proportional throttle valve, the 17, the 4th pressure gauge, 18,
Two pressure transducers, 19, high pressure filter, the 20, the 3rd check valve, 21, deafener, 22, accumulator, the 23, the 4th check valve,
24th, stop valve.
Specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example is served only for explaining this practicality
New, it is not intended to limit scope of the present utility model.
As shown in figure 1, this utility model includes hydraulic pump 1, described hydraulic pump 1 input connected by oil inlet pipe 2
Fuel tank 3, the outfan of described hydraulic pump 1 is sequentially connected board-like ball valve 4 by pipeline, and the outfan of described board-like ball valve 4 connects
Two branch oil pipes, a described branch oil pipe connects the P mouth of air relief valve 5, first pressure table 6 and servo valve to be detected 7, another
The input of oil pipe connection safety valve 8, the outfan of described relief valve 8 connects described fuel tank 3 by pipeline；
The T mouth of servo valve 7 to be detected is sequentially connected choke valve 9, second pressure table 10 and described fuel tank 3 by pipeline；
The A mouth of servo valve 7 to be detected separates two oil circuits, and a branch road connects the outfan of the first proportional throttle valve 11, separately
One branch road connects the input of the first check valve 12, the outfan of described first check valve 12 and described first proportional throttle valve 11
Input connect, in the A mouth exit of servo valve 7 to be detected, 3rd pressure gauge 13 and first pressure sensor 14 are installed；
The B mouth of servo valve 7 to be detected separates two oil circuits, and a branch road connects the outfan of the second proportional throttle valve 16, separately
One branch road connects the input of the second check valve 15, the outfan of described second check valve 15 and described second proportional throttle valve 16
Input connect, in the B mouth exit of servo valve 7 to be detected, 4th pressure gauge 17 and second pressure sensor 18 are installed.
Preferably, described oil inlet pipe 2 is provided with high pressure filter 19.Between described hydraulic pump 1 and described board-like ball valve 4
Pipeline is provided with the 3rd check valve 20.Pipeline between described hydraulic pump 1 and described board-like ball valve 4 is provided with deafener 21.Described
Pipeline between the outfan of board-like ball valve 4 and described air relief valve 5 is provided with accumulator 22.Described first pressure table 6, described
All it is sequentially provided with the 4th check valve 23 between two pressure gauges 10, described 3rd pressure gauge 13, described 4th pressure gauge 17 and pipeline
With stop valve 24.
In this utility model, open hydraulic pump 1, and open board-like ball valve 4, stop valve 24, first pressure table 6 is used for supervising
Survey the input pressure of the P mouth of servo valve 7 to be detected, second pressure table 10 is used for monitoring the fuel-displaced oil of the T mouth of servo valve 7 to be detected
Pressure, the 3rd pressure gauge 13 and first pressure sensor 14 are used for the fuel-displaced oil pressure of the A mouth of real-time monitoring servo valve to be detected 7, the
Four pressure gauges 17 and second pressure sensor 18 are used for the fuel-displaced oil pressure of the B mouth of real-time monitoring servo valve to be detected 7.
This utility model has safety coefficient height, can ensure that whole hydraulic pressure hydraulic system safety during using, tool
There is the function that electro-hydraulic serving volume valve is carried out with static properties test.The setting of the 4th check valve 23 and stop valve 24 can be to first
Pressure gauge 6, second pressure table 10, the 3rd pressure gauge 13, the 4th pressure gauge 17 are protected, and when oil pressure is too high, can pass through
Close stop valve 24, so first pressure table 6, second pressure table 10, the 3rd pressure gauge 13, the 4th pressure gauge 17 would not be made
Become the damage that pressure up to leads to, improve service life.The setting of relief valve 8 can be automatic when input pressure exceedes setting value
Open, oil is drained in fuel tank 3, play the effect preventing hypertonia, improve safety.The setting energy of high pressure filter 19
Oil-feed is filtered, it is to avoid containing impurity, whole test system and servo valve are impacted in oil.3rd check valve 20
Setting be avoided that in pipeline oil backflow.The setting of deafener 21 can eliminate the noise pollution in oily course of conveying in pipeline.
The setting of accumulator 22 is used for buffering the pressure fluctuation of pump.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (6)
1. a kind of hydraulic efficiency servo-valve testing stand hydraulic system is it is characterised in that include hydraulic pump (1) and fuel tank (3), described hydraulic pressure
The input of pump (1) connects described fuel tank (3) by oil inlet pipe (2), and the outfan of described hydraulic pump (1) passes through pipe connecting
Formula ball valve (4), the outfan of described board-like ball valve (4) connects two branch oil pipes, and a described branch oil pipe is sequentially connected air relief valve
(5), the P mouth of first pressure table (6) and servo valve to be detected (7), the input of another branch oil pipe connection safety valve (8), institute
The outfan stating relief valve (8) connects described fuel tank (3) by pipeline；
The T mouth of servo valve (7) to be detected is sequentially connected choke valve (9), second pressure table (10) and described fuel tank by pipeline
(3)；
The A mouth of servo valve (7) to be detected separates three oil circuits, and an oil circuit connects the output of the first proportional throttle valve (11)
End, another oil circuit connects the input of the first check valve (12), the outfan and described first of described first check valve (12)
Input connection, the 3rd branch circuit parallel connection the 3rd pressure gauge (13) and the first pressure sensor (14) of proportional throttle valve (11)；
The B mouth of servo valve (7) to be detected separates three oil circuits, and a branch road connects the outfan of the second proportional throttle valve (16),
Another branch road connects input, the outfan of described second check valve (15) and the described second ratio section of the second check valve (15)
The input of stream valve (16) connects, and the 3rd oil circuit connects the 4th pressure gauge (17) and second pressure sensor (18).
2. a kind of hydraulic efficiency servo-valve testing stand hydraulic system according to claim 1 is it is characterised in that described oil inlet pipe
(2) it is provided with high pressure filter (19).
3. a kind of hydraulic efficiency servo-valve testing stand hydraulic system according to claim 1 and 2 is it is characterised in that described hydraulic pressure
Pipeline between pump (1) and described board-like ball valve (4) is provided with the 3rd check valve (20).
4. a kind of hydraulic efficiency servo-valve testing stand hydraulic system according to claim 1 and 2 is it is characterised in that described hydraulic pressure
Pipeline between pump (1) and described board-like ball valve (4) is provided with deafener (21).
5. a kind of hydraulic efficiency servo-valve testing stand hydraulic system according to claim 1 and 2 is it is characterised in that described board-like
Pipeline between the outfan of ball valve (4) and described air relief valve (5) is provided with accumulator (22).
6. a kind of hydraulic efficiency servo-valve testing stand hydraulic system according to claim 1 and 2 is it is characterised in that described first
Pressure gauge (6), described second pressure table (10), described 3rd pressure gauge (13), described 4th pressure gauge (17) are and pipeline between
All it is sequentially provided with the 4th check valve (23) and stop valve (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946326.8U CN205937309U (en) | 2016-08-25 | 2016-08-25 | Hydraulic servo valve test bench hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946326.8U CN205937309U (en) | 2016-08-25 | 2016-08-25 | Hydraulic servo valve test bench hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937309U true CN205937309U (en) | 2017-02-08 |
Family
ID=57953376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620946326.8U Expired - Fee Related CN205937309U (en) | 2016-08-25 | 2016-08-25 | Hydraulic servo valve test bench hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667812A (en) * | 2019-02-21 | 2019-04-23 | 北京凯德福液压技术有限公司 | A kind of proportioning valve and servo valve testboard |
| CN110285115A (en) * | 2019-06-28 | 2019-09-27 | 江苏阆达机械有限公司 | Hydraulic test bench |
| CN115199523A (en) * | 2022-07-22 | 2022-10-18 | 哈尔滨工业大学 | Four-quadrant hydraulic pump variable characteristic comprehensive test system |
-
2016
- 2016-08-25 CN CN201620946326.8U patent/CN205937309U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667812A (en) * | 2019-02-21 | 2019-04-23 | 北京凯德福液压技术有限公司 | A kind of proportioning valve and servo valve testboard |
| CN109667812B (en) * | 2019-02-21 | 2021-01-01 | 北京凯德福液压技术有限公司 | Proportional valve and servo valve test bench |
| CN110285115A (en) * | 2019-06-28 | 2019-09-27 | 江苏阆达机械有限公司 | Hydraulic test bench |
| CN115199523A (en) * | 2022-07-22 | 2022-10-18 | 哈尔滨工业大学 | Four-quadrant hydraulic pump variable characteristic comprehensive test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190311 Address after: 030000 Taiyuan Industrial Park Headquarters Base 1705, No. 68 Dongyan, Fudong, Xinghualing District, Taiyuan City, Shanxi Province Co-patentee after: Beijing Huayuan Lean Electric Technology Co., Ltd. Patentee after: Shanxi Dongrun electric hydraulic control Co. Ltd. lean Address before: 030021 Area I, Chemical Road, Jinyuan District, Taiyuan City, Shanxi Province Patentee before: Shanxi Dongrun electric hydraulic control Co. Ltd. lean |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |