CN203420970U - Low-temperature testing device for hydraulic component - Google Patents
Low-temperature testing device for hydraulic component Download PDFInfo
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- CN203420970U CN203420970U CN201320520663.7U CN201320520663U CN203420970U CN 203420970 U CN203420970 U CN 203420970U CN 201320520663 U CN201320520663 U CN 201320520663U CN 203420970 U CN203420970 U CN 203420970U
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Abstract
The utility model relates to the field of hydraulic testing equipment, in particular to a low-temperature testing device for a hydraulic component. The low-temperature testing device for the hydraulic component comprises a testing oil circuit and a reversing valve, wherein the testing oil circuit comprises a testing oil circuit and oil cylinders, a disconnecting opening is formed in the testing oil circuit, the oil cylinders comprise a forward oil cylinder and a reverse oil cylinder, a piston is assembled in each oil cylinder, the space in each oil cylinder is divided into a testing oil chamber and a power oil chamber by the corresponding piston, an oil supply pipeline and an oil return pipeline are arranged between the testing oil chamber of each oil cylinder and the testing oil circuit, an oil supply check valve is arranged on each oil supply pipeline, an oil return check valve is arranged on each oil return pipeline, the downstream end of each oil return pipeline leads to the corresponding oil supply pipeline, and is arranged on the upstream portion of the corresponding oil supply check valve arranged on the oil supply pipeline, one working oil port of the reversing valve is connected with the power oil chamber of the forward oil cylinder, and another working oil port of the reversing valve is connected with the power oil chamber of the reverse oil cylinder. The low-temperature testing device for the hydraulic component can use ordinary normal-temperature oil as power oil, and the low-temperature testing cost of the hydraulic component is reduced.
Description
Technical field
The utility model relates to hydraulic test equipment field, particularly relates to a kind of low-temperature test equipment for hydraulic element.
Background technique
In oil hydraulic circuit, there are a lot of occasions to require hydraulic element in the particular surroundings of low temperature, high pressure, to work, these class hydraulic element are often used for the Safety performances such as aircraft and require high occasion, and the damage of any one element all may be bred disaster, and cause the loss that cannot retrieve.
In order to guarantee to use the Safety performance of equipment, every kind of hydraulic element of working in particular surroundings all needed to carry out strict test before sizing, for the hydraulic element of working in low temperature environment, as filter, it just need to carry out low-temperature test before sizing, as low-temperature cool starting test and low temperature crush test.
The hydraulic element small-sized for some, test flow is little, when it is carried out to low-temperature cool starting and low temperature crush test, can all adopt low temperature oil (test oil), yet when running into, some are large-scale, while requiring the larger element of test flow, if whole, test oil is carried out to cooling processing, need to drop into expensive chiller plant and supporting low temperature test element, expended on the one hand a large amount of funds, having increased cost of production, is also a technical barrier to selecting of low-temperature test element on the other hand.
Summary of the invention
The purpose of this utility model is to provide a kind of low-temperature test equipment for hydraulic element, to reduce the low-temperature test cost to hydraulic element.
In order to address the above problem, be used for the low-temperature test equipment of hydraulic element by the following technical solutions: for the low-temperature test equipment of hydraulic element, comprise test oil circuit and the selector valve for being connected with power oil-duct, test oil circuit comprises test oil circuit and plural oil cylinder, test oil circuit is provided with for the fracture of hydraulic element to be tested is installed, oil cylinder is divided into forward oil cylinder and reverse oil cylinder, in each oil cylinder, be respectively fitted with piston, piston becomes the in-oil cylinder spatial separation at its place for holding test with the test oil pocket of low temperature oil with for holding the power oil pocket of power oil, between the test oil pocket of oil cylinder and test oil circuit, be provided with oil feed line and return line, oil feed line is provided with oil feed non-return valve, return line is provided with return check valve, in addition, the downstream of return line passes into corresponding oil feed line and is positioned at the oil feed non-return valve upstream end on this oil feed line, an actuator port of selector valve is connected with the power oil pocket of each forward oil cylinder, another actuator port is connected with the power oil pocket of each reverse oil cylinder.
Described test oil circuit is provided with temperature transducer and pressure transducer.
Place, both sides at fracture on test oil circuit is respectively equipped with pressure transducer.
Test oil circuit is provided with sampling pipe, and sampling pipe is provided with sampling cock.
Return line is provided with maintenance switch, and maintenance switch is positioned at the upstream end of corresponding return check valve.
The actuator port of selector valve connects with corresponding oil cylinder by flexible pipe.
Described selector valve is three position four-way directional control valve.
Selector valve is solenoid valve.
In the process of using this testing apparatus to test hydraulic element, can first in the test oil pocket of forward oil cylinder and/or reverse oil cylinder, pass into the low temperature oil of test use, then the import of hydraulic element to be measured is connected with oil feed line, return line is connected with the outlet of hydraulic element to be measured, selector valve is connected with corresponding power oil sources, the filler opening of supposing selector valve is to be communicated with forward oil cylinder under original state, after starting power oil sources, piston in forward oil cylinder will be promoted by power oil, thereby force its oil feed line of test oil process in forward oil cylinder, test oil circuit and the oppositely return line of oil cylinder enter into the test oil pocket of reverse oil cylinder, and then complete the once test to hydraulic element to be measured, now order about selector valve commutation, the test oil in reverse oil cylinder will be by its oil feed line, the return line of test oil circuit and forward oil cylinder enters into the test oil pocket of forward oil cylinder, realize thus the test again to hydraulic element to be measured, just can realize the test of hydraulic element to be measured being carried out to set point number and so forth, in whole test process, because power oil and test oil are cut off mutually by piston, therefore power oil can be oily with general normal temperature, thereby can avoid adopting a large amount of low-temperature test oil, the low-temperature test cost of reduction to hydraulic element.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram for the low-temperature test equipment of hydraulic element;
Fig. 2 is the plan view for the low-temperature test equipment of hydraulic element;
Fig. 3 is the plan view for the low-temperature test equipment of hydraulic element.
Embodiment
The embodiment who is used for the low-temperature test equipment of hydraulic element, as Figure 1-3, this testing apparatus comprises frame 11, test oil circuit and the selector valve 12 for being connected with power oil-duct.
Test oil circuit comprises test oil circuit and oil cylinder 13, test oil circuit is provided with fracture, fracture is used for installing hydraulic element 14 to be tested, when treating testing hydraulic element 14 and test, hydraulic element 14 to be tested can be serially connected in to the incision position of test oil circuit, for the convenient installation to hydraulic element 14 to be measured, incision position at test oil circuit in frame 11 is also provided with testpieces mounting platform 15, in order to show accurately oil pressure and the oil temperature of testing oil circuit, place, both sides at fracture on test oil circuit is respectively equipped with pressure transducer 16 and temperature transducer 17, in addition, test oil circuit is provided with sampling pipe, sampling pipe is provided with sampling cock 18.In the present embodiment, oil cylinder 13 has two, one in two oil cylinders is forward oil cylinder, another is reverse oil cylinder, in each oil cylinder 13, be equipped with piston, piston becomes the in-oil cylinder spatial separation at its place for holding test with the test oil pocket of low temperature oil with for holding the power oil pocket of power oil, between the test oil pocket of oil cylinder 13 and test oil circuit, be provided with oil feed line and return line, oil feed line is provided with oil feed non-return valve 19, return line is provided with return check valve 20, in addition, the downstream of return line passes into corresponding oil feed line and is positioned at the oil feed non-return valve upstream end on this oil feed line.On return line, be also provided with maintenance switch 21, maintenance switch 21 is positioned at the upstream end of corresponding return check valve.
The three position four-way directional control valve that selector valve 12 is electromagnetism, its a actuator port is connected with the power oil pocket of forward oil cylinder by flexible pipe, and another actuator port is connected with the power oil pocket of reverse oil cylinder by flexible pipe.
Claims (8)
1. for the low-temperature test equipment of hydraulic element, it is characterized in that, comprise test oil circuit and the selector valve for being connected with power oil-duct, test oil circuit comprises test oil circuit and plural oil cylinder, test oil circuit is provided with for the fracture of hydraulic element to be tested is installed, oil cylinder is divided into forward oil cylinder and reverse oil cylinder, in each oil cylinder, be respectively fitted with piston, piston becomes the in-oil cylinder spatial separation at its place for holding test with the test oil pocket of low temperature oil with for holding the power oil pocket of power oil, between the test oil pocket of oil cylinder and test oil circuit, be provided with oil feed line and return line, oil feed line is provided with oil feed non-return valve, return line is provided with return check valve, in addition, the downstream of return line passes into corresponding oil feed line and is positioned at the oil feed non-return valve upstream end on this oil feed line, an actuator port of selector valve is connected with the power oil pocket of each forward oil cylinder, another actuator port is connected with the power oil pocket of each reverse oil cylinder.
2. the low-temperature test equipment for hydraulic element according to claim 1, is characterized in that, described test oil circuit is provided with temperature transducer and pressure transducer.
3. the low-temperature test equipment for hydraulic element according to claim 2, is characterized in that, the place, both sides at fracture on test oil circuit is respectively equipped with pressure transducer.
4. the low-temperature test equipment for hydraulic element according to claim 1, is characterized in that, test oil circuit is provided with sampling pipe, and sampling pipe is provided with sampling cock.
5. the low-temperature test equipment for hydraulic element according to claim 1, is characterized in that, return line is provided with maintenance switch, and maintenance switch is positioned at the upstream end of corresponding return check valve.
6. the low-temperature test equipment for hydraulic element according to claim 1, is characterized in that, the actuator port of selector valve connects with corresponding oil cylinder by flexible pipe.
7. the low-temperature test equipment for hydraulic element according to claim 1, is characterized in that, described selector valve is three position four-way directional control valve.
8. the low-temperature test equipment for hydraulic element according to claim 1, is characterized in that, selector valve is solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520663.7U CN203420970U (en) | 2013-08-23 | 2013-08-23 | Low-temperature testing device for hydraulic component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320520663.7U CN203420970U (en) | 2013-08-23 | 2013-08-23 | Low-temperature testing device for hydraulic component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420970U true CN203420970U (en) | 2014-02-05 |
Family
ID=50020069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320520663.7U Withdrawn - After Issue CN203420970U (en) | 2013-08-23 | 2013-08-23 | Low-temperature testing device for hydraulic component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286475A (en) * | 2016-10-19 | 2017-01-04 | 中航飞机股份有限公司西安飞机分公司 | The circulation of hydraulic medium and the detection of hydraulic part under a kind of low temperature environment |
-
2013
- 2013-08-23 CN CN201320520663.7U patent/CN203420970U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286475A (en) * | 2016-10-19 | 2017-01-04 | 中航飞机股份有限公司西安飞机分公司 | The circulation of hydraulic medium and the detection of hydraulic part under a kind of low temperature environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140205 Effective date of abandoning: 20170308 |
|
| AV01 | Patent right actively abandoned |