CN203176064U - Water base medium oil cylinder pressure test device - Google Patents
Water base medium oil cylinder pressure test device Download PDFInfo
- Publication number
- CN203176064U CN203176064U CN 201320183555 CN201320183555U CN203176064U CN 203176064 U CN203176064 U CN 203176064U CN 201320183555 CN201320183555 CN 201320183555 CN 201320183555 U CN201320183555 U CN 201320183555U CN 203176064 U CN203176064 U CN 203176064U
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Abstract
The utility model discloses a water base medium oil cylinder pressure test device which comprises a liquid tank, a liquid pump, a tested oil cylinder and a reversing valve. Two oil ports of the tested oil cylinder are connected with a liquid pump through a corresponding valve I or a corresponding valve II and a check valve I. An oil feeding port of the reversing valve is connected with the check valve I, the valve I and the valve II, an oil return port of the reversing valve is connected with the liquid tank, and two working oil ports of the reversing valve are connected with an oil port of the tested oil cylinder. The device is characterized by further comprising a pressurizing cylinder and a pressurizing reversing valve. The oil feeding port of the pressurizing reversing valve is connected with the liquid pump, the oil return port of the pressurizing reversing valve is connected with the liquid tank, a working oil port of the pressurizing reversing valve is connected with the large cavity end of the pressurizing cylinder, the small cavity end of the pressurizing cylinder is connected between the check valve I and the oil feeding port of the reversing valve through a check valve II, and a check valve III is arranged between the liquid pump and the small cavity end of the pressurizing cylinder. The pressure test device can output high pressure to meet the requirement of a water base medium pressure test.
Description
Technical field
The utility model relates to a kind of oil cylinder Withstand test device for aqueous medium.
Background technique
Be used for the oil cylinder on the coal mine machinery, even there is not potential safety hazard in its working environment after requiring the liquid medium in the oil cylinder to leak yet, this has just determined its employed pressured fluid can not be the wet goods combustable liquid, need to adopt aqueous medium, but the viscosity of aqueous medium liquid is lower, the permeability height, when oil cylinder is done pressure test, substitute fluid with aqueous medium, common selector valve, oil pump systems can only be exported the pressure of 3-4 MPa, can't satisfy high pressure (as the 80-100 MPa) requirement of pressure test.
The model utility content
The purpose of this utility model is at the prior art above shortcomings, and a kind of aqueous medium oil cylinder Withstand test device is provided, and it can export high pressure, to satisfy the requirement of pressure test.
For achieving the above object, aqueous medium oil cylinder Withstand test device of the present utility model, comprise the liquid case, liquid pump, tested oil cylinder, selector valve, two hydraulic fluid ports of the tested oil cylinder valve I by separately or valve II and an one-way valve I respectively link to each other with liquid pump, the filler opening of selector valve and one-way valve I, the valve I links to each other with the valve II, the return opening of selector valve links to each other with the liquid case, two actuator ports of selector valve link to each other with a hydraulic fluid port of tested oil cylinder respectively, it is characterized in that also comprising a pressurized cylinder and supercharging selector valve, the filler opening of supercharging selector valve links to each other with liquid pump, the return opening of supercharging selector valve links to each other with the liquid case, one actuator port of supercharging selector valve links to each other with the big chamber end of pressurized cylinder, the loculus end of pressurized cylinder is connected in by the one-way valve II between the filler opening of one-way valve I and selector valve, also is provided with the one-way valve III between the loculus end of liquid pump and pressurized cylinder.
When the withstand voltage experiment of carrying out oil cylinder, the guiding valve of supercharging selector valve and selector valve is in meta earlier, unlatching in valve I and the valve II, then another is closed, liquid pump work, to a hydraulic fluid port feed flow of tested oil cylinder, the piston walking in it, the one-way valve III is open simultaneously, to the loculus fluid infusion of pressurized cylinder; When piston was walked limit position, operation supercharging selector valve made its actuator port to the big chamber feed flow of pressurized cylinder, piston in it moves, and to the liquid supercharging in the loculus, the one-way valve III is closed, the one-way valve II is opened, and to liquid supercharging in the tested oil cylinder, detects the resistance to pressure of oil cylinder; When the tested in-oil cylinder piston reverses direction of operation was walked, reversing valve operated guiding valve was connected its corresponding actuator port and return opening, and tested in-oil cylinder decompression is returned liquid through the return opening stream liquid-return box of selector valve;
As further improvement of the utility model, valve III or valve IV that two actuator ports of described selector valve pass through separately respectively link to each other with two hydraulic fluid ports of tested oil cylinder, and the filler opening of selector valve also links to each other with the one-way valve II with the one-way valve I by the valve V; When carrying out supercharging, but in throttle down V and valve III and the valve IV one opens in valve III and the valve IV another, to avoid the too high damage selector valve of boost pressure or to cause selector valve to move;
As further improvement of the utility model, liquid pump links to each other with the liquid case by relief valve; To guarantee that system is improved the flow that is fit to;
In sum, the utility model can be exported high pressure, to satisfy the requirement of aqueous medium pressure test.
Description of drawings
Fig. 1 is the utility model embodiment's hydraulic schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, this aqueous medium oil cylinder Withstand test device, comprise liquid case 1, liquid pump 2, tested oil cylinder 3, selector valve 4, pressurized cylinder 8 and supercharging selector valve 9, liquid pump links to each other with the liquid case by relief valve, two hydraulic fluid ports of tested oil cylinder 3 valve 5 by separately or valve 6 and an one-way valve 7 respectively link to each other with liquid pump 2, the filler opening of selector valve 4 is by valve 15 and one-way valve 7, valve 5 links to each other with valve 6, the return opening of selector valve 4 links to each other with liquid case 1, two actuator ports difference valve 11 or the valve 12 separately of selector valve 4 links to each other with a hydraulic fluid port of tested oil cylinder 3, the filler opening of supercharging selector valve 9 links to each other with liquid pump 2, the return opening of supercharging selector valve 9 links to each other with liquid case 1, one actuator port of supercharging selector valve 9 links to each other with the big chamber end of pressurized cylinder 8, the loculus end of pressurized cylinder 8 is connected between one-way valve 7 and the valve 15 by one-way valve 13, also is provided with one-way valve 14 between the loculus end of liquid pump 2 and pressurized cylinder 8.
When the withstand voltage experiment of carrying out oil cylinder, the guiding valve of supercharging selector valve 8 and selector valve 4 is in meta earlier, and valve 5 is opened, and valve 6 is closed, and valve 12 is opened, and valve 11 is closed; Liquid pump 2 work, to the left oil port feed flow of tested oil cylinder 3, the piston in it is walked to the right, and one-way valve 14 is open simultaneously, to the loculus fluid infusion of pressurized cylinder 8; When the piston of tested oil cylinder 3 is walked the right side limit position, operation supercharging selector valve 9, make its actuator port to the big chamber feed flow of pressurized cylinder 8, piston in it moves, to the liquid supercharging in the loculus, this moment, one-way valve 14 was closed, and one-way valve 13 is opened, to liquid supercharging in the tested oil cylinder 3, can detect the resistance to pressure of oil cylinder; When the piston in the tested oil cylinder 3 need be walked left, valve 5 is closed, valve 6 is opened, valve 11 is opened, valve 12 is closed, liquid pump 2 work, reversing valve operated 4 guiding valve is connected the left side actuator port of its correspondence and return opening, and the decompression in left side is returned liquid through the return opening stream liquid-return box 1 of selector valve 4 in the tested oil cylinder 3; Valve 11,12,15 can be avoided the too high damage selector valve 4 of boost pressure or cause selector valve 4 to move.
Claims (3)
1. aqueous medium oil cylinder Withstand test device, comprise the liquid case, liquid pump, tested oil cylinder, selector valve, two hydraulic fluid ports of the tested oil cylinder valve I by separately or valve II and an one-way valve I respectively link to each other with liquid pump, the filler opening of selector valve and one-way valve I, the valve I links to each other with the valve II, the return opening of selector valve links to each other with the liquid case, two actuator ports of selector valve link to each other with a hydraulic fluid port of tested oil cylinder respectively, it is characterized in that also comprising a pressurized cylinder and supercharging selector valve, the filler opening of supercharging selector valve links to each other with liquid pump, the return opening of supercharging selector valve links to each other with the liquid case, one actuator port of supercharging selector valve links to each other with the big chamber end of pressurized cylinder, the loculus end of pressurized cylinder is connected in by the one-way valve II between the filler opening of one-way valve I and selector valve, also is provided with the one-way valve III between the loculus end of liquid pump and pressurized cylinder.
2. aqueous medium oil cylinder Withstand test device as claimed in claim 1, two actuator ports that it is characterized in that described selector valve valve III or the valve IV by separately respectively link to each other with two hydraulic fluid ports of tested oil cylinder, and the filler opening of selector valve also passes through the valve V and links to each other with the one-way valve II with the one-way valve I.
3. aqueous medium oil cylinder Withstand test device as claimed in claim 1 or 2 is characterized in that liquid pump links to each other with the liquid case by relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183555 CN203176064U (en) | 2013-04-12 | 2013-04-12 | Water base medium oil cylinder pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183555 CN203176064U (en) | 2013-04-12 | 2013-04-12 | Water base medium oil cylinder pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176064U true CN203176064U (en) | 2013-09-04 |
Family
ID=49072767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320183555 Expired - Fee Related CN203176064U (en) | 2013-04-12 | 2013-04-12 | Water base medium oil cylinder pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050804A (en) * | 2016-04-28 | 2016-10-26 | 江西洪都航空工业集团有限责任公司 | Test system for hydraulic shock waveform control |
| CN112483511A (en) * | 2020-12-08 | 2021-03-12 | 四川凌峰航空液压机械有限公司 | Variable pressure ratio hydraulic pressure boost test system |
-
2013
- 2013-04-12 CN CN 201320183555 patent/CN203176064U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050804A (en) * | 2016-04-28 | 2016-10-26 | 江西洪都航空工业集团有限责任公司 | Test system for hydraulic shock waveform control |
| CN112483511A (en) * | 2020-12-08 | 2021-03-12 | 四川凌峰航空液压机械有限公司 | Variable pressure ratio hydraulic pressure boost test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20210412 |