CN205225936U - On --spot detection device of switching -over valve - Google Patents
On --spot detection device of switching -over valve Download PDFInfo
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- CN205225936U CN205225936U CN201520977737.9U CN201520977737U CN205225936U CN 205225936 U CN205225936 U CN 205225936U CN 201520977737 U CN201520977737 U CN 201520977737U CN 205225936 U CN205225936 U CN 205225936U
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- switching
- over valve
- detection device
- hydraulic
- selector valve
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Abstract
The utility model relates to a valve body detecting system, especially an on - -spot detection device of switching -over valve. This system includes that one is used for the connection to wait to examine the switching -over valve and provide hydraulic hydraulic pressure mechanism to and connect and wait to examine the detection device that the switching -over valve is used for detecting wearing and tearing, wherein hydraulic pressure mechanism include an oil tank, a hydraulic pump of being connected with the oil tank and connect the hydraulic pump and the fluid pressure line of waiting to examine the switching -over valve, the fluid pressure line on be equipped with pressure adjustment assembly, detection device include and be equipped with mark point on the body of rod of pneumatic cylinder by a pneumatic cylinder, the other test chi that is equipped with of the body of rod. The utility model discloses an on - -spot detection device of switching -over valve waits to examine the switching -over valve through hydraulic pressure mechanism and detection device connection, based on the internal leakage of switching -over valve to the internal leakage of valve of will commutating converts the pneumatic cylinder into and at specified time's measurement variable, judges the damage of switching -over valve from this. Convenient to use, the power consumption is few, and the test is accurate, and especially adapted field isolates the test of hydraulic system component and judgees.
Description
Technical field
The utility model relates to a kind of valve body detection system, especially a kind of selector valve on-site detecting device.
Background technique
In hydraulic system, selector valve utilizes spool relative to the relative movement of valve body, makes oil circuit connection, turns off, or convert the direction of oil stream, thus makes hydraulic actuator startup, stops or converting moving direction.Under the working pressure of regulation, the leakage rate that selector valve drains to low-pressure cavity from hyperbaric chamber is internal leakage.Excessive internal leakage not only can reduce the efficiency of system, and it is overheated to cause, but also can affect the normal work of actuator or cause fault.Selector valve is in operation and is worn, and gap is strengthened, and internal leakage can progressively strengthen.
Therefore, selector valve may wear to a certain degree needs to change or repair.Matching gap or the internal leakage of direct inspection selector valve are all very difficult.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides one easy to use, and power consumption is few, and accurately, very applicable field isolates hydraulic system element test to be provided with the selector valve Site Detection passed judgment in test.
To achieve these goals, the utility model adopts following technological scheme:
This device comprises one for connecting selector valve to be checked and providing the hydraulic mechanism of hydraulic pressure, and connect selector valve to be checked for detecting the detection device of wearing and tearing, wherein said hydraulic mechanism comprises the hydraulic pipe line of a fuel tank, an oil hydraulic pump be connected with fuel tank and connecting fluid press pump and selector valve to be checked, and described hydraulic pipe line is provided with pressure regulator; Described detection device comprises an oil hydraulic cylinder, and the body of rod of oil hydraulic cylinder is provided with measuring apparatus.
Preferably, described pressure regulator comprises pressure regulator valve and pressure gauge.
Preferably, described measuring apparatus comprises the gauge point be located on the body of rod, and is located at the other test chi of the body of rod.
Preferably, described gauge point is located at the end of the body of rod.
Owing to have employed said structure, selector valve on-site detecting device of the present utility model is connected selector valve to be checked by hydraulic mechanism with detection device, based on the internal leakage of selector valve, and the internal leakage of selector valve is converted to the account variable of oil hydraulic cylinder in the stipulated time, judges the breakage of selector valve thus.Easy to use, power consumption is few, and test accurately, is applicable to field and isolates hydraulic system element test and pass judgment on very much.
Accompanying drawing explanation
Fig. 1 is system construction drawing of the present utility model.
Embodiment
As shown in Figure 1, selector valve on-site detecting device in the present embodiment comprises one for connecting selector valve 1 to be checked and providing the hydraulic mechanism 2 of hydraulic pressure, and connect selector valve 1 to be checked for detecting the detection device 3 of wearing and tearing, wherein said hydraulic mechanism 2 comprises the hydraulic pipe line 23 of oil hydraulic pump 22 that a fuel tank 21, is connected with fuel tank 21 and connecting fluid press pump 22 and selector valve 1 to be checked, and described hydraulic pipe line 23 is provided with pressure regulator; Described detection device 3 comprises an oil hydraulic cylinder 31, and the body of rod 32 of oil hydraulic cylinder 31 is provided with measuring apparatus.
In concrete component detail, in the present embodiment, described pressure regulator comprises pressure regulator valve 24 and pressure gauge 25.
In the present embodiment, described measuring apparatus comprises the gauge point 33 be located on the body of rod 32, and is located at the other test chi 34 of the body of rod 32.
In the present embodiment, described gauge point 33 is located at the end of the body of rod.
During use, first, by tested selector valve connecting system, primer fluid press pump 22; Utilize pressure gauge 25 to adjust pressure regulator valve 24, system pressure is adjusted to specified value p.
Reversing valve operated 4, be located at the zero point of ranging rod 34.
Start timing.
When stipulated time t arrives, observe oil hydraulic cylinder displacement distance L.
When the Wear evaluation of selector valve:
1) lateral comparison judges: tested selector valve of the same type, compare the size of L value, differentiate the degree of wear of each valve.
2) longitudinal comparison judges 1: test the selector valve run and new selector valve respectively, watch the difference of L value, differentiates the degree of wear of the valve run.
3) longitudinal comparison judges 2: test same selector valve in the different operation phase, watches the change of L value, differentiates the degree of wear of selector valve and the relation of running time T, and draws the L-running time T graph of relation of the reflection selector valve degree of wear.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a selector valve on-site detecting device, it is characterized in that: comprise one for connecting selector valve to be checked and providing the hydraulic mechanism of hydraulic pressure, and connect selector valve to be checked for detecting the detection device of wearing and tearing, wherein said hydraulic mechanism comprises the hydraulic pipe line of a fuel tank, an oil hydraulic pump be connected with fuel tank and connecting fluid press pump and selector valve to be checked, and described hydraulic pipe line is provided with pressure regulator; Described detection device comprises an oil hydraulic cylinder, and the body of rod of oil hydraulic cylinder is provided with measuring apparatus.
2. a kind of selector valve on-site detecting device as claimed in claim 1, is characterized in that: described pressure regulator comprises pressure regulator valve and pressure gauge.
3. a kind of selector valve on-site detecting device as claimed in claim 2, is characterized in that: described measuring apparatus comprises the gauge point be located on the body of rod, and is located at the other test chi of the body of rod.
4. a kind of selector valve on-site detecting device as claimed in claim 3, is characterized in that: described gauge point is located at the end of the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520977737.9U CN205225936U (en) | 2015-12-01 | 2015-12-01 | On --spot detection device of switching -over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520977737.9U CN205225936U (en) | 2015-12-01 | 2015-12-01 | On --spot detection device of switching -over valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225936U true CN205225936U (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520977737.9U Active CN205225936U (en) | 2015-12-01 | 2015-12-01 | On --spot detection device of switching -over valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545876A (en) * | 2015-12-01 | 2016-05-04 | 广东精铟海洋工程股份有限公司 | Field detection device for reversing valve |
-
2015
- 2015-12-01 CN CN201520977737.9U patent/CN205225936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545876A (en) * | 2015-12-01 | 2016-05-04 | 广东精铟海洋工程股份有限公司 | Field detection device for reversing valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |