CN219581130U - Bypass valve dry detection device - Google Patents
Bypass valve dry detection device Download PDFInfo
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- CN219581130U CN219581130U CN202320543547.0U CN202320543547U CN219581130U CN 219581130 U CN219581130 U CN 219581130U CN 202320543547 U CN202320543547 U CN 202320543547U CN 219581130 U CN219581130 U CN 219581130U
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- bypass valve
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Abstract
The utility model discloses a bypass valve dry detection device, which comprises a frame, wherein a clamping device used for clamping a bypass valve to be detected is arranged on the frame, and the device also comprises a pressure regulating air inlet pipe used for being communicated with an inlet of the bypass valve and a flowmeter buret used for being communicated with an outlet of the bypass valve; the air flow direction is taken as the downstream direction, the upstream end of the pressure regulating air inlet pipe is used for connecting an air source, and the pressure regulating air inlet pipe is connected with a high-pressure regulating unit and a low-pressure regulating unit which are selectively opened in parallel; the high-pressure regulating unit comprises a high-pressure regulating valve and a high-pressure electromagnetic valve which are mutually connected in series; the low-pressure regulating unit comprises a low-pressure regulating valve and a low-pressure electromagnetic valve which are connected in series; a flowmeter is arranged on the flowmeter buret. The utility model has simple structure and convenient use, replaces oil detection by gas detection, realizes dry detection, does not need to clean the oil in the bypass valve after the dry detection, avoids the wasted engine oil in the oil detection, also avoids the time cost and the labor and material cost caused by cleaning, has obvious cost reduction effect and improves the detection efficiency.
Description
Technical Field
The utility model relates to the technical field of bypass valve detection.
Background
In a fuel motor vehicle, an engine oil filter has an important function of ensuring the normal operation of an engine. When the filtration resistance of the oil filter is too large, the engine is lack of engine oil, dry grinding occurs, and the damage is very large. Therefore, when the oil filter is too large in filtration resistance, the bypass valve needs to be opened to supply oil to the engine. After the bypass valve is opened, unfiltered engine oil enters the engine, so that the engine can be well protected compared with dry grinding of the engine, and abrasion of the engine is increased compared with the condition that engine oil filtered by the engine oil filter enters the engine. Thus, there is a need for a bypass valve that maintains a seal to avoid increased engine wear (if the amount of leakage is small enough) when the oil filter still has the required filtering capacity to meet the engine (when one seal oil pressure is applied); when the lubrication oil passage pressure is too high to meet the engine lubrication requirement (at this time, a higher oil pressure is corresponding to the opening oil pressure), the engine is kept open.
Therefore, a satisfactory bypass valve should remain sealed at seal oil pressure, maintain a good open condition at open oil pressure, and have sufficient oil passage at a predetermined pressure. Thus, a need exists for a bypass valve to be effective. The existing detection technology is that a bypass valve is connected to a test tool, sealing oil pressure is applied first, and leakage is tested; then, an opening oil pressure is applied, and the oil passing amount is tested. The leakage quantity and the oil passing quantity meet the design requirements,
the defects of the existing detection technology are as follows:
during testing, a large amount of lubricating oil is required to be used, a bypass valve is required to be cleaned after testing, a large amount of energy is consumed during cleaning, the leakage amount depends on manual observation, manual errors exist, and the like, and after unqualified products flow out, the pressure of engine oil of the whole vehicle is possibly too low, and even an engine cannot be started.
Disclosure of Invention
The utility model aims to provide a bypass valve dry detection device without cleaning engine oil after detection, which can perform double detection of leakage quantity and oil passing quantity on a bypass valve.
In order to achieve the purpose, the bypass valve dry inspection device comprises a frame, wherein a clamping device for clamping a bypass valve to be inspected is arranged on the frame, and the device also comprises a pressure regulating air inlet pipe which is communicated with an inlet of the bypass valve and a flowmeter buret which is communicated with an outlet of the bypass valve;
the air flow direction is taken as the downstream direction, the upstream end of the pressure regulating air inlet pipe is used for connecting an air source, and the pressure regulating air inlet pipe is connected with a high-pressure regulating unit and a low-pressure regulating unit which are selectively opened in parallel;
the high-pressure regulating unit comprises a high-pressure regulating valve and a high-pressure electromagnetic valve which are mutually connected in series;
the low-pressure regulating unit comprises a low-pressure regulating valve and a low-pressure electromagnetic valve which are connected in series;
a flowmeter is arranged on the flowmeter buret.
The high-pressure regulating unit and the low-pressure regulating unit form a total pressure regulating unit, and an oil-gas separator is arranged on a pressure regulating air inlet pipe between the total pressure regulating unit and the air source.
The high-pressure regulating valve and the low-pressure regulating valve are both electronic pressure regulating valves, and the flowmeter is an electronic flowmeter;
the rack is also provided with an electric control device which is connected with the high-pressure regulating valve, the low-pressure regulating valve, the high-pressure electromagnetic valve, the low-pressure electromagnetic valve and the flowmeter; the electric control device is connected with a display screen, and the display screen is used for displaying pressure data and flow data.
The clamping device comprises a vertical clamping cylinder and a horizontal clamping cylinder;
the machine frame is provided with a detection station for installing the bypass valve, a portal frame is arranged on the detection station in a straddling manner, the top end of the portal frame is provided with the vertical clamping cylinder, and an extension rod of the vertical clamping cylinder is downwards arranged and connected with a vertical clamping claw matched with the bypass valve;
the machine frame at one side of the detection station is provided with the horizontal clamping cylinder, and an extension rod of the horizontal clamping cylinder faces the detection station and is connected with a horizontal clamping claw matched with the bypass valve; the vertical clamping cylinder and the horizontal clamping cylinder are connected with the electric control device.
The utility model has the following advantages:
the utility model has simple structure and convenient use, replaces oil detection by gas detection, realizes dry detection, does not need to clean the oil in the bypass valve after the dry detection, avoids the wasted engine oil in the oil detection, also avoids the time cost and the labor and material cost caused by cleaning, has obvious cost reduction effect and improves the detection efficiency.
The oil-gas separator can further ensure that no oil exists in the air flow, so that the result that the air is mixed with oil to cause that the air needs to be cleaned to a certain degree after being tested is avoided.
The bypass valve to be tested can be firmly positioned through the vertical clamping claw and the horizontal clamping claw, and good fixing conditions are provided for test work.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic view of the air path structure of the present utility model;
fig. 4 is a schematic diagram of the electrical control structure of the present utility model.
Detailed Description
As shown in fig. 1 to 4, the bypass valve dry inspection device of the present utility model comprises a frame 1, wherein a clamping device for clamping a bypass valve to be inspected is arranged on the frame 1, and the device further comprises a pressure regulating air inlet pipe 3 communicated with an inlet of a bypass valve 2, and a flowmeter 4 communicated with an outlet of the bypass valve 2;
the air flow direction is taken as the downstream direction, the upstream end of the pressure regulating air inlet pipe 3 is used for connecting an air source, and the pressure regulating air inlet pipe 3 is connected in parallel with a high-pressure regulating unit and a low-pressure regulating unit which are selectively opened;
the high-pressure regulating unit is used for testing the oil passing amount of the bypass valve 2 under the opening oil pressure, and the low-pressure regulating unit is used for testing the leakage amount of the bypass valve 2 under the sealing oil pressure;
the high-pressure regulating unit comprises a high-pressure regulating valve 5 and a high-pressure electromagnetic valve 6 which are mutually connected in series;
the low-pressure regulating unit comprises a low-pressure regulating valve 7 and a low-pressure electromagnetic valve 8 which are connected in series;
a flowmeter 9 is mounted on the flowmeter tube 4. The air source can be a high-pressure air tank or an air pump, an air compressor and other devices, which are all conventional technologies and are not shown in the figure.
The utility model has simple structure and convenient use, replaces oil detection by gas detection, realizes dry detection, does not need to clean the oil in the bypass valve 2 after the dry detection, avoids the wasted engine oil in the oil detection, also avoids the time cost and the manpower and material resource cost caused by cleaning, has obvious effect of reducing the cost and improves the detection efficiency.
The high-pressure regulating unit and the low-pressure regulating unit form a total pressure regulating unit, and an oil-gas separator 10 is arranged on the pressure regulating air inlet pipe 3 between the total pressure regulating unit and the air source.
The oil-gas separator 10 can further ensure that no oil exists in the air flow, so that the problem that the mixed oil in the air needs to be cleaned to a certain degree after testing is avoided.
The high-pressure regulating valve 5 and the low-pressure regulating valve 7 are both electronic pressure regulating valves, and the flowmeter 9 is an electronic flowmeter;
the frame 1 is also provided with an electric control device 17, and the electric control device 17 is connected with the high-pressure regulating valve 5, the low-pressure regulating valve 7, the high-pressure electromagnetic valve 6, the high-pressure electromagnetic valve 8 and the flowmeter 9; the electronic control unit 17 is connected to a display screen 16, and the display screen 16 is used for displaying pressure data (from the high-pressure regulating valve 5 or the low-pressure regulating valve 7) and flow data. The electric control device 17 can adopt an integrated circuit or a singlechip, so that automatic control is convenient to realize.
The clamping device comprises a vertical clamping cylinder 11 and a horizontal clamping cylinder 12;
the machine frame 1 is provided with a detection station for installing the bypass valve 2, a portal frame 13 is arranged on the detection station in a straddling manner, the top end of the portal frame 13 is provided with the vertical clamping cylinder 11, and an extension rod of the vertical clamping cylinder 11 is downwards arranged and connected with a vertical clamping claw 14 matched with the bypass valve 2;
the machine frame 1 at one side of the detection station is provided with the horizontal clamping cylinder 12, and an extension rod of the horizontal clamping cylinder 12 faces the detection station and is connected with a horizontal clamping claw 15 matched with the bypass valve 2;
the vertical clamping cylinder 11 and the horizontal clamping cylinder 12 are connected with an electric control device 17.
By means of the vertical clamping jaw 14 and the horizontal clamping jaw 15, the bypass valve 2 to be tested can be firmly positioned, and good fixing conditions are provided for testing work.
During testing, the bypass valve 2 to be tested is rotated at a detection station, and the vertical clamping claw 14 and the horizontal clamping claw 15 are started through the electric control device 17 to clamp and position the bypass valve 2; ensuring that the pressure regulating inlet pipe 3 and the flow meter 9 buret 4 are well connected to the bypass valve 2. First, the tightness test is performed. The electric control device 17 closes the high-pressure electromagnetic valve 6, opens the low-pressure electromagnetic valve 8, controls the pressure to be set sealing pressure matched with the bypass valve 2 to be tested through the low-pressure regulating valve, supplies air to the bypass valve 2, measures flow data through the flowmeter 9, and displays pressure information given by the low-pressure regulating valve 7 and flow information given by the flowmeter 9 on the display screen 16 for monitoring and adjusting by staff. When the air flow is smaller than the qualified flow value in the designed sealing state, the bypass valve 2 is a qualified product, and otherwise, the bypass valve is unqualified. The bypass valve 2 with unqualified sealing test is not required to be subjected to oil flow test, and is classified as an unqualified product.
And continuing to perform oil flow test on the bypass valve 2 which is qualified in the sealing test. The electronic control device 17 closes the low-pressure solenoid valve 8, opens the high-pressure solenoid valve 6, adjusts the pressure to the opening oil pressure through the high-pressure regulating valve 5, measures flow data through the flowmeter 9, and displays pressure information given by the low-pressure regulating valve 7 and flow information given by the flowmeter 9 on the display screen 16. When the air flow is larger than the qualified flow value in the preset oil passing state, the bypass valve 2 is a qualified product, otherwise, the bypass valve 2 is unqualified, and the qualified or unqualified classification is carried out on the bypass valve 2 according to the final test result, so that the problem of a downstream host factory (whole vehicle manufacturer) caused by taking the unqualified product as the qualified product is avoided.
The above embodiments are only for illustrating the technical solution of the present utility model, and it should be understood by those skilled in the art that although the present utility model has been described in detail with reference to the above embodiments: modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model, which is intended to be encompassed by the claims.
Claims (4)
1. The utility model provides a bypass valve dry inspection device, includes the frame, is equipped with the clamping device who is used for pressing from both sides tight by survey bypass valve in the frame, its characterized in that: the device also comprises a pressure regulating air inlet pipe communicated with the inlet of the bypass valve and a flowmeter buret communicated with the outlet of the bypass valve;
the air flow direction is taken as the downstream direction, the upstream end of the pressure regulating air inlet pipe is used for connecting an air source, and the pressure regulating air inlet pipe is connected with a high-pressure regulating unit and a low-pressure regulating unit which are selectively opened in parallel;
the high-pressure regulating unit comprises a high-pressure regulating valve and a high-pressure electromagnetic valve which are mutually connected in series;
the low-pressure regulating unit comprises a low-pressure regulating valve and a low-pressure electromagnetic valve which are connected in series;
a flowmeter is arranged on the flowmeter buret.
2. The bypass valve dry test device of claim 1, wherein: the high-pressure regulating unit and the low-pressure regulating unit form a total pressure regulating unit, and an oil-gas separator is arranged on a pressure regulating air inlet pipe between the total pressure regulating unit and the air source.
3. The bypass valve dry test device according to claim 1 or 2, characterized in that: the high-pressure regulating valve and the low-pressure regulating valve are both electronic pressure regulating valves, and the flowmeter is an electronic flowmeter;
the rack is also provided with an electric control device which is connected with the high-pressure regulating valve, the low-pressure regulating valve, the high-pressure electromagnetic valve, the low-pressure electromagnetic valve and the flowmeter; the electric control device is connected with a display screen, and the display screen is used for displaying pressure data and flow data.
4. A bypass valve dry test device as claimed in claim 3, wherein: the clamping device comprises a vertical clamping cylinder and a horizontal clamping cylinder;
the machine frame is provided with a detection station for installing the bypass valve, a portal frame is arranged on the detection station in a straddling manner, the top end of the portal frame is provided with the vertical clamping cylinder, and an extension rod of the vertical clamping cylinder is downwards arranged and connected with a vertical clamping claw matched with the bypass valve;
the machine frame at one side of the detection station is provided with the horizontal clamping cylinder, and an extension rod of the horizontal clamping cylinder faces the detection station and is connected with a horizontal clamping claw matched with the bypass valve;
the vertical clamping cylinder and the horizontal clamping cylinder are connected with the electric control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320543547.0U CN219581130U (en) | 2023-03-20 | 2023-03-20 | Bypass valve dry detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320543547.0U CN219581130U (en) | 2023-03-20 | 2023-03-20 | Bypass valve dry detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219581130U true CN219581130U (en) | 2023-08-25 |
Family
ID=87690562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320543547.0U Active CN219581130U (en) | 2023-03-20 | 2023-03-20 | Bypass valve dry detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219581130U (en) |
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2023
- 2023-03-20 CN CN202320543547.0U patent/CN219581130U/en active Active
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