CN205331121U - Hydraulic pressure pump test load valves - Google Patents
Hydraulic pressure pump test load valves Download PDFInfo
- Publication number
- CN205331121U CN205331121U CN201521040239.8U CN201521040239U CN205331121U CN 205331121 U CN205331121 U CN 205331121U CN 201521040239 U CN201521040239 U CN 201521040239U CN 205331121 U CN205331121 U CN 205331121U
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- Prior art keywords
- valve
- plug
- pump
- test
- way plug
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- Expired - Fee Related
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Abstract
The utility model provides a hydraulic pressure pump test load valves has mainly solved current test bench hydraulic system and only can test a hydraulic pump, simultaneously compatible open hydraulic pump and closed hydraulic pump's problem. Adopt the technical scheme of the utility model, having simplified test bench hydraulic system, having improved the measuring accuracy, the load test to open hydraulic pump and closed hydraulic pump can be realized to the hydraulic fluid port of connecting the load valves different, has solved former hydraulic pressure pump test bed load valves and can only make open pump test and can not make closed pump test, and closed pump test must have another set loading system's problem.
Description
Technical field
This utility model relates to a kind of hydraulic pump test charge valve group。
Background technology
At present, the measuring accuracy of testing stand hydraulic system is relatively low, and a kind of testing stand hydraulic system is only capable of a kind of hydraulic pump is tested, and carries out load test to opposite opened hydraulic pump respectively and closed type hydraulic pump, then needing two set testing stand hydraulic systems, the scope of application is narrow。
Summary of the invention
This utility model provides a kind of test-bed for pump charge valve group, mainly solves existing testing stand hydraulic system and is only capable of a kind of hydraulic pump is tested, it is impossible to the problem of compatible open hydraulic pump and closed type hydraulic pump simultaneously。
Concrete technical solution of the present utility model is as follows:
This test-bed for pump charge valve group includes plug-in mounting overflow valve and four two-way plug-in valves, described plug-in mounting overflow valve is connected with the control system controlling plug-in mounting overflow valve oil pressure relief, the outlet of plug-in mounting overflow valve is Leakage Energy hydraulic fluid port, the outlet of plug-in mounting overflow valve entrance and the 3rd two-way plug-in valve, the 4th two-way plug-in valve；The entrance of the 3rd two-way plug-in valve and the outlet of the first two-way plug-in valve；The entrance of the 4th two-way plug-in valve and the outlet of the second two-way plug-in valve；The entrance of the 3rd two-way plug-in valve and the entrance of the 4th two-way plug-in valve all as pump pressure oil inlet to be tested, can access again the entrance of the first two-way plug-in valve and the entrance of the second two-way plug-in valve after the leakage under high temperature oil cooling of plug-in mounting overflow valve。Four two-way plug-in valves define bridge shape oil return。
Described control system is made up of Solenoid ball valve, electricity proportional pressure control valve and relief valve。
The beneficial effects of the utility model are in that:
1, owing to have employed this technical scheme, simplify testing stand hydraulic system, improve measuring accuracy, connect the different hydraulic fluid port of charge valve group and can realize the load test of opposite opened hydraulic pump and closed type hydraulic pump, solve former hydraulic pump test stand charge valve group and can only make open type pump testing and can not make enclosed pump testing；Enclosed pump testing must have another set of loading system。
Detaching pipelines is not needed when testing pump difference outlet pressure and flow when 2, carrying out enclosed pump testing。
3, reduce the maloperation of operator, improve work efficiency。Decrease leakage and the waste of hydraulic oil。
Accompanying drawing explanation
Fig. 1 is open type pump testing schematic diagram；
Fig. 2 is enclosed pump testing schematic diagram；
Accompanying drawing is detailed as follows:
1, Solenoid ball valve；2, electricity proportional pressure control valve；3, relief valve；4, plug-in mounting overflow valve；5-1, the first two-way plug-in valve；5-2, the second two-way plug-in valve；5-3, the 3rd two-way plug-in valve；5-4, the 4th two-way plug-in valve；6, tested pump testing；7, radiator。
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail:
This test-bed for pump charge valve group is by four two-way plug-in valves, 2, relief valve of an electric proportional pressure control valve, 1, plug-in mounting overflow valve 4 integrated hydraulic loop of 3, Solenoid ball valve。
Wherein plug-in mounting overflow valve 4 is connected with the control system controlling plug-in mounting overflow valve oil pressure relief, and control system is made up of Solenoid ball valve 1, electricity proportional pressure control valve 2 and relief valve 3。
The outlet of plug-in mounting overflow valve is for revealing oil hydraulic fluid port, the outlet of plug-in mounting overflow valve entrance and the 3rd two-way plug-in valve 5-3, the 4th two-way plug-in valve 5-4；The entrance of the 3rd two-way plug-in valve 5-3 and the outlet of the first two-way plug-in valve 5-1；The entrance of the 4th two-way plug-in valve 5-4 and the outlet of the second two-way plug-in valve 5-1；The entrance of the 3rd two-way plug-in valve 5-3 and the entrance of the 4th two-way plug-in valve 5-4 are pump pressure oil inlet to be tested。
When utilizing the test-bed for pump charge valve group that this utility model provides to test, carry out in such a way respectively:
A. open type pump testing
During open type pump testing, the pressure oil of pump enters the A mouth of load-on module by the 4th two-way plug-in valve 5-4 entrance plug-in mounting overflow valve 4, constantly change the size of current of electricity proportional pressure control valve 2 thus changing the oil pressure relief of overflow valve, realize loading to hydraulic pump, direct oil sump tank after load-on module T1 mouth leakage under high temperature oil cooling out。
B. enclosed pump testing
During enclosed pump testing when the A mouth of pump is pressure oil side, hydraulic oil enters the A mouth of load-on module and enters plug-in mounting overflow valve 4 by the 4th two-way plug-in valve 5-4, constantly change the size of current of electricity proportional pressure control valve 2 thus changing the oil pressure relief of overflow valve, it is achieved the loading to hydraulic pump。
After load-on module T1 mouth leakage under high temperature oil cooling out, enter the first two-way plug-in valve 5-1 entrance by the T2 mouth of load-on module, enter low-pressure side B interruption-forming one circulation of enclosed pump from the outlet of the first two-way plug-in valve 5-1。
When the B mouth of pump is force feed side, hydraulic oil enters the B mouth of load-on module and enters plug-in mounting overflow valve 4 by the 3rd two-way plug-in valve 5-3, constantly changes the size of current of electricity proportional pressure control valve 2 thus changing the oil pressure relief of overflow valve, it is achieved the loading to hydraulic pump。
After load-on module T1 mouth leakage under high temperature oil cooling out, enter the second two-way plug-in valve 5-2 entrance by the T2 mouth of load-on module, enter low-pressure side A interruption-forming one circulation of enclosed pump from the outlet of the second two-way plug-in valve 5-2。
Claims (2)
1. a test-bed for pump charge valve group, it is characterized in that: include a plug-in mounting overflow valve and four two-way plug-in valves, described plug-in mounting overflow valve is connected with the control system controlling plug-in mounting overflow valve oil pressure relief, the outlet of plug-in mounting overflow valve is Leakage Energy hydraulic fluid port, the outlet of plug-in mounting overflow valve entrance and the 3rd two-way plug-in valve, the 4th two-way plug-in valve；The entrance of the 3rd two-way plug-in valve and the outlet of the first two-way plug-in valve；The entrance of the 4th two-way plug-in valve and the outlet of the second two-way plug-in valve；The entrance of the 3rd two-way plug-in valve and the entrance of the 4th two-way plug-in valve all can as pump pressure oil inlets to be tested；The entrance of the first two-way plug-in valve and the entrance of the second two-way plug-in valve is accessed after the leakage under high temperature oil cooling of described plug-in mounting overflow valve。
2. test-bed for pump charge valve group according to claim 1, it is characterised in that: described control system is made up of Solenoid ball valve, electricity proportional pressure control valve and relief valve。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040239.8U CN205331121U (en) | 2015-12-12 | 2015-12-12 | Hydraulic pressure pump test load valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040239.8U CN205331121U (en) | 2015-12-12 | 2015-12-12 | Hydraulic pressure pump test load valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331121U true CN205331121U (en) | 2016-06-22 |
Family
ID=56212675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521040239.8U Expired - Fee Related CN205331121U (en) | 2015-12-12 | 2015-12-12 | Hydraulic pressure pump test load valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205331121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194456A (en) * | 2018-01-05 | 2018-06-22 | 宁波程锐液压科技有限公司 | A kind of test valve group of Load sensing pump |
-
2015
- 2015-12-12 CN CN201521040239.8U patent/CN205331121U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194456A (en) * | 2018-01-05 | 2018-06-22 | 宁波程锐液压科技有限公司 | A kind of test valve group of Load sensing pump |
| CN108194456B (en) * | 2018-01-05 | 2020-08-28 | 宁波程锐液压科技有限公司 | Test valve group of load sensing pump |
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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: 20160622 Termination date: 20201212 |