CN207485771U - Hydraulic Elements strength test bench - Google Patents
Hydraulic Elements strength test bench Download PDFInfo
- Publication number
- CN207485771U CN207485771U CN201721279986.6U CN201721279986U CN207485771U CN 207485771 U CN207485771 U CN 207485771U CN 201721279986 U CN201721279986 U CN 201721279986U CN 207485771 U CN207485771 U CN 207485771U
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- Prior art keywords
- pressure
- hydraulic
- oil
- ball valve
- fuel
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Abstract
The utility model discloses a kind of Hydraulic Elements strength test benchs.It includes hydraulic air oil return line, Aviation Fuel circuit, isolation hydraulic cylinder；Hydraulic oil container, the first high-pressure ball valve, the first return pressure table, the first subject Hydraulic Elements, the first charge oil pressure table, the second high-pressure ball valve, pressure regulator valve pass sequentially through connecting line series connection in the first closed circuit；Aviation Fuel circuit includes check valve, low-pressure filter, the 4th high-pressure ball valve, the second charge oil pressure table, the second return pressure table, the 5th high-pressure ball valve, the 6th high-pressure ball valve, fuel oil box liquid level gauge, fuel oil box, low-pressure fuel pump, overflow valve, and fuel oil box, low-pressure fuel pump, low-pressure filter, check valve, the 4th high-pressure ball valve, the second charge oil pressure table, the second subject Hydraulic Elements, the second return pressure table, the 5th high-pressure ball valve pass sequentially through connecting line series connection in the 6th closed circuit；Piston and piston displacement sensor are provided in isolation hydraulic cylinder.There is pressure resistance, stablize.
Description
Technical field
The utility model is related to Hydraulic Elements strength test bench, more specifically it be primarily used for using aircraft fluid as
The Hydraulic Elements of working media and using Aviation Fuel as the voltage-withstand test of the Hydraulic Elements of working media Hydraulic Elements intensity survey
Test stand.
Background technology
Hydraulic Elements strength test bench is mainly that the Hydraulic Elements such as aircraft electrohydraulic servo valve, steering engine, valve carried out pressure
Degree test；Existing Hydraulic Elements need to examine its machinery under rated operating pressure 1.5 or 2 times or even 2.5 times of high pressure strong
Degree, maximum pressure are up to 50~65MPa；Existing Hydraulic Elements strength test bench is static-pressure system, and cannot be met
The high pressure dynamic pressure for having certain flow demand is tested；The pressure resistance that usual static-pressure system cannot be provided with the Hydraulic Elements of flow demand is surveyed
Examination, such as the hydraulic pressure original paper with leakage characteristic, cannot keep pressure, pressure can walking with flow if static-pressure system is used
It loses and release.
For Aviation Fuel viscosity for 1.4cst or so, viscosity is extremely low under room temperature, and hydraulic system typical media, such as hydraulic pressure oil phase
Than down to several times or tens times, therefore its lubricity is relatively low, and leakage is larger, and general industry Hydraulic Elements are difficult to meet high-pressure system
Using.
Therefore, now urgently it is a kind of can be suitably used for high pressure, small flow dynamic pressure test request Hydraulic Elements strength test
Platform.
Invention content
The purpose of this utility model is to provide a kind of Hydraulic Elements strength test bench, is realized by conventional hydraulic circuit low
Viscosity aviation kerosine medium Hi-pot test；Can meet the short time continues the high pressure fuel fuel feeding of small flow or prolonged discontinuity
The high pressure fuel fuel feeding of small flow is provided simultaneously with continuous high-pressure hydraulic oil oil supply function；Pressure 70MPa can be met, flow is little
In the dynamic pressure test request of 6L/min.
To achieve these goals, the technical solution of the utility model is：Hydraulic Elements strength test bench, feature exist
In：Including hydraulic air oil return line, Aviation Fuel circuit, isolation hydraulic cylinder；Hydraulic air oil return line includes hydraulic oil container, hydraulic pressure
Tank gauge, high-pressure hydraulic pump, the first check valve, the first high-pressure ball valve, the first return pressure table, high pressure filter, first
Charge oil pressure table, the second high-pressure ball valve, safety valve, third high-pressure ball valve, pressure regulator valve；Hydraulic oil container liquid level gauge is set to hydraulic oil
On case；Hydraulic oil container, the first high-pressure ball valve, the first return pressure table, the first subject Hydraulic Elements, the first charge oil pressure table, the
Two high-pressure ball valves, pressure regulator valve pass sequentially through connecting line series connection in the first closed circuit；Hydraulic oil container, high-pressure hydraulic pump, first
Check valve, safety valve pass sequentially through connecting line series connection in the second closed circuit；Hydraulic oil container, high-pressure hydraulic pump, first are unidirectionally
Valve, high pressure filter, pressure regulator valve pass sequentially through connecting line series connection in third closed circuit；Hydraulic oil container, high-pressure hydraulic pump,
Connecting line series connection is passed sequentially through between one check valve, high pressure filter, third high-pressure ball valve, isolation hydraulic cylinder；
Aviation Fuel circuit includes the second check valve, low-pressure filter, the 4th high-pressure ball valve, the second charge oil pressure table, the
Two return pressure tables, the 6th high-pressure ball valve, fuel oil box liquid level gauge, fuel oil box, low-pressure fuel pump, overflow at the 5th high-pressure ball valve
Valve is flowed, fuel oil box liquid level gauge is set on fuel oil box；Fuel oil box, low-pressure fuel pump, overflow valve pass sequentially through connecting tube
Road series connection is in the 4th closed circuit；Fuel oil box, low-pressure fuel pump, low-pressure filter, the second check valve, the 6th high-pressure ball valve according to
It is secondary to be connected by connecting line in the 5th closed circuit；Fuel oil box, low-pressure fuel pump, low-pressure filter, the second check valve,
Four high-pressure ball valves, the second charge oil pressure table, the second subject Hydraulic Elements, the second return pressure table, the 5th high-pressure ball valve lead to successively
Connecting line series connection is crossed in the 6th closed circuit；Fuel oil box, the 6th high-pressure ball valve, the 4th high-pressure ball valve, the second charge oil pressure
Table, the second subject Hydraulic Elements, the second return pressure table, the 5th high-pressure ball valve pass sequentially through connecting line series connection and are closed in the 7th
Circuit；Connecting line is passed sequentially through between fuel oil box, low-pressure fuel pump, low-pressure filter, the second check valve, isolation hydraulic cylinder
Series connection；
Piston and piston displacement sensor are provided in isolation hydraulic cylinder.
In the above-mentioned technical solutions, the first subject Hydraulic Elements are the Hydraulic Elements of hydraulic pressure oil medium；Second subject hydraulic pressure
Element is the Hydraulic Elements of fuel medium.
In the above-mentioned technical solutions, isolation hydraulic cylinder has two end point indicators to be located at insulating liquid respectively in sealing structure
The both ends of cylinder pressure；Depending on hydraulic cylinder cylinder diameter and stroke is isolated according to test traffic requirement.
The invention has the advantages that：
(1) low viscosity aviation kerosine medium Hi-pot test is realized by conventional hydraulic circuit；Pressure 70MPa can be met,
Flow is not more than the dynamic pressure test request of 6L/min；
(2) hydraulic air oil return line can be used as Hydraulic Elements strength test of the independent loop for hydraulic pressure oil medium；Together
When have as fuel oil high voltage power source for driving isolation cylinder, realize the Hydraulic Elements strength test of fuel medium；Using height
Press hydraulic circuit driving isolation cylinder generate high pressure fuel fuel feeding, can meet the short time continue small flow high pressure fuel fuel feeding or
It is interrupted the high pressure fuel fuel feeding of small flow for a long time, is provided simultaneously with continuous high-pressure hydraulic oil oil supply function；
(3) isolation cylinder uses the design of high leakproofness, is configured with piston displacement sensor, is used to indicate piston end position
Prompting；Piston, which can be used, to be waited specific areas or waits specific areas using non-to obtain higher fuel feed pressure；
(4) it is simple to operate, it is applied widely.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Hydraulic cylinder structure schematic diagram is isolated for the utility model in Fig. 2.
In Fig. 1, P is the oil inlet for trying Hydraulic Elements；R is the oil return opening for trying Hydraulic Elements.
1- hydraulic oil containers in figure, 2- hydraulic oil container liquid level gauges, 3- high-pressure hydraulic pumps, the first check valves of 4-, the first high pressures of 5-
Ball valve, 6- the first return pressure tables, 7- high pressure filters, 8- the first charge oil pressure tables, the second high-pressure ball valves of 9-, 10- safety valves,
11- third high-pressure ball valves, 12- pressure regulator valves, 13- isolation hydraulic cylinders, the second check valves of 14-, 15- low-pressure filters, 16- the 4th are high
Pressure ball valve, 17- the second charge oil pressure tables, 18- the second return pressure tables, the 5th high-pressure ball valves of 19-, the 6th high-pressure ball valves of 20-,
21- fuel oil box liquid level gauges, 22- fuel oil boxes, 23- low-pressure fuel pumps, 24- overflow valves, 25- first are tested Hydraulic Elements, 26-
Second subject Hydraulic Elements, 27- pistons.
Specific embodiment
The performance of the utility model is described in detail below in conjunction with the accompanying drawings, but they are not formed to the utility model
It limits, it is only for example.The advantages of making the utility model by explanation simultaneously, is more clear and is readily appreciated that.
It is understood refering to attached drawing：Hydraulic Elements strength test bench, it is characterised in that：It is fired including hydraulic air oil return line, aviation
Oil return line, isolation hydraulic cylinder；Hydraulic air oil return line includes hydraulic oil container 1, hydraulic oil container liquid level gauge 2, high-pressure hydraulic pump 3, the
One check valve 4, the first high-pressure ball valve 5, the first return pressure table 6, high pressure filter 7, the first charge oil pressure table 8, the second high pressure
Ball valve 9, safety valve 10, third high-pressure ball valve 11, pressure regulator valve 12；Hydraulic oil container liquid level gauge 2 is set on hydraulic oil container 1；Hydraulic pressure
Fuel tank 1, the first high-pressure ball valve 5, the first return pressure table 6, first subject Hydraulic Elements 25, the first charge oil pressure table 8, second are high
Pressure ball valve 9, pressure regulator valve 12 pass sequentially through connecting line series connection in the first closed circuit；Hydraulic oil container 1, high-pressure hydraulic pump 3, first
Check valve 4, safety valve 10 pass sequentially through connecting line series connection in the second closed circuit；Hydraulic oil container 1, high-pressure hydraulic pump 3, first
Check valve 4, high pressure filter 7, pressure regulator valve 12 pass sequentially through connecting line series connection in third closed circuit；Hydraulic oil container 1, high pressure
Connecting tube is passed sequentially through between hydraulic pump 3, the first check valve 4, high pressure filter 7, third high-pressure ball valve 11, isolation hydraulic cylinder 13
It connects on road；
Aviation Fuel circuit includes the second check valve 14, low-pressure filter 15, the 4th high-pressure ball valve 16, the second charge oil pressure
Table 17, the second return pressure table 18, the 5th high-pressure ball valve 19, the 6th high-pressure ball valve 20, fuel oil box liquid level gauge 21, fuel oil box
22nd, low-pressure fuel pump 23, overflow valve 24, fuel oil box liquid level gauge 21 are set on fuel oil box 22；Fuel oil box 22, low pressure combustion
Oil pump 23, overflow valve 24 pass sequentially through connecting line series connection in the 4th closed circuit；It is fuel oil box 22, low-pressure fuel pump 23, low
It presses through filter 15, the second check valve 14, the 6th high-pressure ball valve 20 and passes sequentially through connecting line series connection in the 5th closed circuit；Fuel oil
Fuel tank 22, low-pressure fuel pump 23, low-pressure filter 15, the second check valve 14, the 4th high-pressure ball valve 16, the second charge oil pressure table
17th, the second subject Hydraulic Elements 26, the second return pressure table 18, the 5th high-pressure ball valve 19 pass sequentially through connecting line series connection in the
Six closed circuits；Fuel oil box 22, the 6th high-pressure ball valve 20, the 4th high-pressure ball valve 16, the second charge oil pressure table 17, second subject
Hydraulic Elements 26, the second return pressure table 18, the 5th high-pressure ball valve 19 pass sequentially through connecting line series connection in the 7th closed circuit；
The company of passing sequentially through between fuel oil box 22, low-pressure fuel pump 23, low-pressure filter 15, the second check valve 14, isolation hydraulic cylinder 13
Take over road series connection；
Piston 27 and piston displacement sensor are provided in isolation hydraulic cylinder 13.
First subject Hydraulic Elements 25 are the Hydraulic Elements of hydraulic pressure oil medium；Second subject Hydraulic Elements 26 are fuel medium
Hydraulic Elements.
Hydraulic cylinder 13 is isolated in sealing structure, there are the both ends that two end point indicators are located at isolation hydraulic cylinder 13 respectively；Every
Depending on 13 cylinder diameter of chaotropic cylinder pressure and stroke foundation test traffic requirement, piston, which can be used, waits specific areas or to obtain higher fuel oil
Charge oil pressure uses the specific areas such as non-.
The course of work of Hydraulic Elements strength test bench described in the utility model is as follows：Test the first subject Hydraulic Elements
When 25, start hydraulic oil circuit, close third high-pressure ball valve 11, open the second high-pressure ball valve 9, high-pressure hydraulic pump 3 is by hydraulic oil
Hydraulic oil in case 1 exports high pressure liquid pressure oil by the first check valve 4 and high pressure filter 7, and high pressure liquid pressure oil is high by second
Pressure ball valve 9 enters the first subject Hydraulic Elements 25, adjusts the first high-pressure ball valve 5 control the first subject Hydraulic Elements 25 outlet pressurization
Or off-load, realize the Hi-pot test of the Hydraulic Elements of hydraulic pressure oil medium；Wherein check valve 4 is used to prevent back-pressure, high pressure filter 7
Ensure to input test product for clean oil；For safety valve 10 for limiting hydraulic air oil return line maximum pressure, pre- superpressure preventing is dangerous；
Pressure regulator valve 12 is used to adjust hydraulic oil charge oil pressure；First charge oil pressure table 8 and the first return pressure table 6 are respectively used to monitoring and supply
Oil pressure and return pressure；
During test the second subject Hydraulic Elements 26, start Aviation Fuel circuit and isolation hydraulic cylinder 13；Start before test low
Compression ignition oil pump 23, the 4th high-pressure ball valve 16 of closing, the 6th high-pressure ball valve 20 of opening, 24 to one lower pressure of regulation relief valve, such as
Regulation relief valve 24 to 2MPa, operation a period of time until discharge line air, closes the 6th high-pressure ball valve 20, low-pressure fuel pump
Fuel oil in fuel oil box is exported fuel oil by 23 by 15 and second check valve 14 of low-pressure filter, and fuel oil enters isolation hydraulic cylinder
13, isolation 13 piston 27 of hydraulic cylinder moves to left, and is full of fuel oil in isolation hydraulic cylinder 13；It is opened after pressure stability in hydraulic cylinder 13 to be isolated
Hydrodynamic pressure oil return line, 13 piston 27 of pressure isolation hydraulic cylinder for adjusting pressure regulator valve 12 to test request moves to right, high by second at this time
Pressure ball valve 9 is closed, and opens third high-pressure ball valve 11, realizes the Hi-pot test of the Hydraulic Elements of fuel medium；One fuel oil supplies
After the completion of oily stroke, by turning down pressure regulator valve 12, realize that isolation 13 piston of hydraulic cylinder moves to left supplement fuel oil；Pressure regulator valve 12 is used to adjust
Save hydraulic oil charge oil pressure and control isolation cylinder piston motion；Second charge oil pressure table 17 and the second return pressure table 18 are supervised respectively
Survey fuel feed pressure and return pressure, the outlet pressurization of the 5th high-pressure ball valve 19 control the second subject Hydraulic Elements 26 or off-load.
By facts have proved that Hydraulic Elements strength test bench described in the utility model can safety and stability fortune under maximum pressure 70MPa
Row.
It is small that the pressure that Hydraulic Elements strength test bench described in the utility model can meet is less than or equal to 70MPa, flow
In or equal to 6L/min, can be used for using Aviation Fuel as liquid of the Hydraulic Elements and aircraft fluid of working media for working media
Press the voltage-withstand test of element；And existing is usually static pressure, the Hydraulic Elements that can not meet has flow demand are tested, and can not be expired
The test of sufficient high pressure fuel, general high voltage fuel oil dynamic pressure can only achieve 21MPa.
Other unaccounted parts belong to the prior art.
Claims (3)
1. Hydraulic Elements strength test bench, it is characterised in that：Including hydraulic air oil return line, Aviation Fuel circuit, isolation hydraulic pressure
Cylinder；Hydraulic air oil return line includes hydraulic oil container (1), hydraulic oil container liquid level gauge (2), high-pressure hydraulic pump (3), the first check valve
(4), the first high-pressure ball valve (5), the first return pressure table (6), high pressure filter (7), the first charge oil pressure table (8), second high
Pressure ball valve (9), safety valve (10), third high-pressure ball valve (11), pressure regulator valve (12)；Hydraulic oil container liquid level gauge (2) is set to hydraulic pressure
On fuel tank (1)；Hydraulic oil container (1), the first high-pressure ball valve (5), the first return pressure table (6), first subject Hydraulic Elements (25),
First charge oil pressure table (8), the second high-pressure ball valve (9), pressure regulator valve (12) pass sequentially through connecting line series connection and are closed back in first
Road；Hydraulic oil container (1), high-pressure hydraulic pump (3), the first check valve (4), safety valve (10) pass sequentially through connecting line series connection in the
Two closed circuits；Hydraulic oil container (1), high-pressure hydraulic pump (3), the first check valve (4), high pressure filter (7), pressure regulator valve (12) according to
It is secondary to be connected by connecting line in third closed circuit；Hydraulic oil container (1), high-pressure hydraulic pump (3), the first check valve (4), high pressure
Connecting line series connection is passed sequentially through between filter (7), third high-pressure ball valve (11), isolation hydraulic cylinder (13)；
Aviation Fuel circuit includes the second check valve (14), low-pressure filter (15), the 4th high-pressure ball valve (16), second for oil pressure
Power table (17), the second return pressure table (18), the 5th high-pressure ball valve (19), the 6th high-pressure ball valve (20), fuel oil box liquid level gauge
(21), fuel oil box (22), low-pressure fuel pump (23), overflow valve (24), fuel oil box liquid level gauge (21) are set to fuel oil box
(22) on；Fuel oil box (22), low-pressure fuel pump (23), overflow valve (24) pass sequentially through connecting line series connection and are closed back in the 4th
Road；Fuel oil box (22), low-pressure fuel pump (23), low-pressure filter (15), the second check valve (14), the 6th high-pressure ball valve (20)
Connecting line series connection is passed sequentially through in the 5th closed circuit；Fuel oil box (22), low-pressure fuel pump (23), low-pressure filter
(15), the second check valve (14), the 4th high-pressure ball valve (16), the second charge oil pressure table (17), second subject Hydraulic Elements (26),
Second return pressure table (18), the 5th high-pressure ball valve (19) pass sequentially through connecting line series connection in the 6th closed circuit；Fuel oil oil
Case (22), the 6th high-pressure ball valve (20), the 4th high-pressure ball valve (16), the second charge oil pressure table (17), the second subject Hydraulic Elements
(26), the second return pressure table (18), the 5th high-pressure ball valve (19) pass sequentially through connecting line series connection in the 7th closed circuit；Combustion
Between fuel tank (22), low-pressure fuel pump (23), low-pressure filter (15), the second check valve (14), isolation hydraulic cylinder (13) according to
It is secondary to be connected by connecting line；
Piston (27) and piston displacement sensor are provided in isolation hydraulic cylinder (13).
2. Hydraulic Elements strength test bench according to claim 1, it is characterised in that：First, which is tested Hydraulic Elements (25), is
The Hydraulic Elements of hydraulic pressure oil medium；Second subject Hydraulic Elements (26) are the Hydraulic Elements of fuel medium.
3. Hydraulic Elements strength test bench according to claim 2, it is characterised in that：Hydraulic cylinder (13) is isolated to tie in sealing
Structure has the both ends that two end point indicators are located at isolation hydraulic cylinder (13) respectively；Hydraulic cylinder (13) cylinder diameter and stroke foundation is isolated
It tests depending on traffic requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721279986.6U CN207485771U (en) | 2017-09-30 | 2017-09-30 | Hydraulic Elements strength test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721279986.6U CN207485771U (en) | 2017-09-30 | 2017-09-30 | Hydraulic Elements strength test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485771U true CN207485771U (en) | 2018-06-12 |
Family
ID=62479397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721279986.6U Expired - Fee Related CN207485771U (en) | 2017-09-30 | 2017-09-30 | Hydraulic Elements strength test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207485771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141790A (en) * | 2018-07-24 | 2019-01-04 | 山河智能装备股份有限公司 | Using the energy-efficient high voltage pulse generation device of self-excited vibration |
| CN109595222A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | A kind of isolation cylinder |
-
2017
- 2017-09-30 CN CN201721279986.6U patent/CN207485771U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141790A (en) * | 2018-07-24 | 2019-01-04 | 山河智能装备股份有限公司 | Using the energy-efficient high voltage pulse generation device of self-excited vibration |
| CN109141790B (en) * | 2018-07-24 | 2020-04-03 | 山河智能装备股份有限公司 | Energy-saving high-voltage pulse generating device applying self-excited vibration |
| CN109595222A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | A kind of isolation cylinder |
| CN109595222B (en) * | 2019-01-02 | 2023-12-01 | 中船重工中南装备有限责任公司 | Isolation oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20210930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |