Oil pressure leakage testing device

Abstract

The utility model discloses an oil pressure leakage testing device, and particularly relates to the technical field of automobile part detection, the oil pressure leakage testing device comprises a testing assembly, a leakage detection device and an oil pressure assembly, the testing assembly comprises a testing rack, and the top of the testing rack is provided with a first clamp and a second clamp which are distributed up and down; one sides, close to each other, of the first clamp and the second clamp are respectively provided with a test cavity for placing a VVT dry belt pulley for detection, the center of the top of the first clamp is provided with an oil inlet, the center of the bottom of the second clamp is provided with a leakage detection port, the leakage detection device comprises a leakage sensor, the leakage sensor is communicated with the leakage detection port, and the oil inlet is communicated with the leakage sensor. The oil pressure assembly comprises an oil tank. Compared with a traditional air pressure testing or water pressure testing method, the oil pressure testing method is adopted, the testing precision and stability are higher, and the device is simple in structure, convenient and fast to operate and suitable for the automatic detection requirement of a large-scale production line.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts detection, and more specifically to an oil pressure test leakage device. Background Art

[0002] VVT dry pulleys are widely used in the VVT system of automobile engines. Compared with the chain system, the belt system has the advantages of low noise and low cost in the VVT system. In addition, VVT dry pulleys usually have a relatively light weight, which helps to reduce the overall weight of the engine and improve the fuel economy of the vehicle. As an important component of the automobile engine, the sealing performance of the powder metallurgy VVT dry pulley directly affects the working efficiency and reliability of the engine.

[0003] At present, for the sealing performance detection of such VVT dry pulleys in the market, traditional air pressure tests or water pressure tests are mainly used. However, these methods have disadvantages such as low test accuracy and being easily affected by the environment. Based on this, the utility model provides an oil pressure test leakage device. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an oil pressure test leakage device. By adopting the oil pressure test method, compared with the traditional air pressure test or water pressure test method, it has higher test accuracy and stability. In addition, the device has a simple structure and convenient operation, and is suitable for the automated detection requirements of large-scale production lines, so as to solve the problems presented in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solution: an oil pressure test leakage device for detecting the sealing performance of a VVT dry pulley, including a test assembly. The test assembly includes a test bench. On the top of the test bench, there are fixture one and fixture two distributed up and down. On the sides of fixture one and fixture two close to each other, there are test cavities for placing the VVT dry pulley for detection. At the center of the top of fixture one, there is an oil inlet. At the center of the bottom of fixture two, there is a leakage detection port;

[0006] A leakage detection device, which includes a leakage sensor. The leakage sensor is communicated with the leakage detection port;

[0007] An oil pressure assembly, which includes an oil tank. The oil tank is fixed on one side of the test bench. Above the oil tank, there is a fuel pump connected. The fuel pump is connected to the oil inlet through an oil pipeline. A pressure sensor and a pressure regulating valve are fixed on the oil pipeline, and the pressure regulating valve is arranged on one side of the pressure sensor.

[0008] In a preferred embodiment, an electric slide table is fixedly provided at the rear side of the top of the test bench. The front end of the electric slide table is fixed to the rear end of the first fixture. By driving the first fixture to automatically lift and lower with the electric slide table, it is convenient to place and take the VVT dry pulley.

[0009] In a preferred embodiment, two vertical rods are fixedly provided at the top of the test bench. Limit plates are fixedly provided on both sides of the first fixture. The two limit plates are respectively sleeved on the two vertical rods. By means of the cooperation between the limit plates and the vertical rods, the stability of the first fixture during lifting and lowering can be improved.

[0010] In a preferred embodiment, a bracket for supporting the oil pump, pressure sensor and pressure regulating valve is fixedly provided at the top of the test bench. The bracket is arranged on one side of the first fixture and the second fixture. The use of the bracket can improve the stability of the oil pump, pressure sensor and pressure regulating valve.

[0011] In a preferred embodiment, rubber sealing rings are provided between the inner wall of the test cavity and the top and bottom of the VVT dry pulley. A sealing sleeve is provided inside the test cavity. The sealing sleeve is sleeved between the VVT dry pulley and the two test cavities. The use of the rubber sealing ring can improve the sealing performance between the VVT dry pulley and the test cavity. At the same time, the use of the sealing sleeve can improve the sealing performance between the first fixture and the second fixture.

[0012] In a preferred embodiment, the first fixture and the second fixture are detachably fixed together by a plurality of locking screws to improve the connection firmness between the first fixture and the second fixture.

[0013] In a preferred embodiment, a control panel for the leakage sensor, oil pump, pressure sensor, regulating valve and electric slide table is fixedly provided inside the test bench, and the control panel is arranged on one side of the leakage sensor. The use of the control panel can realize the intelligent control of the device.

[0014] The technical effects and advantages of the present utility model:

[0015] By adopting the oil pressure test method, the present utility model has higher test accuracy and stability compared with the traditional air pressure test or water pressure test methods. And the device has a simple structure and convenient operation, and is suitable for the automatic detection requirements of large-scale production lines;

[0016] By real-time monitoring of the oil pressure change and the magnitude of the leakage amount, the sealing performance of the VVT dry pulley can be accurately judged, and thus the detection efficiency can be improved;

[0017] The automatic lifting and lowering of the first fixture can be realized through the electric slide table, so as to facilitate the placement and taking of the VVT dry pulley and save operation time. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the front view of the overall structure of the present utility model;

[0020] Figure 3 is the rear view of the test component of the present utility model;

[0021] Figure 4 is the sectional view of the test component of the present utility model;

[0022] Figure 5 is the top view of the overall structure of the present utility model.

[0023] The reference numerals are: 1, test component; 2, leakage detection device; 3, oil pressure component; 4, electric slide table; 5, vertical rod; 6, limit plate; 7, bracket; 8, rubber sealing ring; 9, sealing sleeve; 10, locking screw; 11, control panel;

[0024] Test bench; 102, fixture one; 103, fixture two; 104, test cavity; 105, oil inlet; 106, leakage detection port;

[0025] Leakage sensor;

[0026] 301, fuel tank; 302, oil pump; 303, oil pipeline; 304, pressure sensor; 305, pressure regulating valve. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] Refer to the attached drawings of the specification Figures 1-5, the present utility model provides an oil pressure test leakage device for detecting the sealing performance of a VVT dry pulley, including a test assembly 1. The test assembly 1 includes a test bench 101. On the top of the test bench 101, there are a fixture one 102 and a fixture two 103 distributed up and down. The fixture one 102 and the fixture two 103 are detachably fixed together by a plurality of locking screws 10 to improve the connection firmness between the fixture one 102 and the fixture two 103. On the side where the fixture one 102 and the fixture two 103 are close to each other, there is a test cavity 104 for placing the VVT dry pulley for detection. At the center of the top of the fixture one 102, there is an oil inlet 105, and at the center of the bottom of the fixture two 103, there is a leakage detection port 106;

[0029] It further includes a leakage detection device 2. The leakage detection device 2 includes a leakage sensor 201, and the leakage sensor 201 is communicated with the leakage detection port 106;

[0030] It further includes an oil pressure assembly 3. The oil pressure assembly 3 includes an oil tank 301. The oil tank 301 is fixed on one side of the test bench 101. Above the oil tank 301, there is a fuel pump 302 communicated. The fuel pump 302 is communicated with the oil inlet 105 through an oil pipeline 303. On the oil pipeline 303, there are a pressure sensor 304 and a pressure regulating valve 305 fixed, and the pressure regulating valve 305 is arranged on one side of the pressure sensor 304;

[0031] And, on the top of the test bench 101, there is a bracket 7 for supporting the fuel pump 302, the pressure sensor 304 and the pressure regulating valve 305. The bracket 7 is arranged on one side of the fixture one 102 and the fixture two 103. The bracket 7 can be used to improve the stability of the fuel pump 302, the pressure sensor 304 and the pressure regulating valve 305;

[0032] Moreover, between the inner wall of the test cavity 104 and the top and bottom of the VVT dry pulley, there are rubber sealing rings 8. Inside the test cavity 104, there is a sealing sleeve 9. The sealing sleeve 9 is sleeved between the VVT dry pulley and the two test cavities 104. The rubber sealing ring 8 can be used to improve the sealing performance between the VVT dry pulley and the test cavity 104, and at the same time, the sealing sleeve 9 can be used to improve the sealing performance between the fixture one 102 and the fixture two 103;

[0033] Inside the test bench 101, there is a control panel 11 for controlling the leakage sensor 201, the fuel pump 302, the pressure sensor 304, the regulating valve and the electric slide 4, and the control panel 11 is arranged on one side of the leakage sensor 201 to realize the intelligent control of the device.

[0034] During use, first install the VVT dry pulley to be tested in the test chamber 104 between the first fixture 102 and the second fixture 103, and use a plurality of locking screws 10 to firmly fix the first fixture 102 and the second fixture 103 together. Then, pump the hydraulic fluid out of the fuel tank 301 through the oil pump 302, and transport it into the test chamber 104 from the oil inlet 105 through the oil pipeline 303. Use the pressure sensor 304 to detect the oil pressure in the oil pipeline 303 in real time, and at the same time use the pressure regulating valve 305 to adjust the pressure of the hydraulic fluid. Monitor the detection signals of the pressure sensor 304 and the leakage sensor 201 in real time. Analyze the change of the oil pressure and the size of the leakage amount through the control panel 11, and judge whether the sealing performance of the VVT dry pulley is qualified according to the preset leakage standard, and output the detection result, which is convenient for the staff to understand the VVT dry pulley.

[0035] Refer to the attached instructions Figures 1-5 At the rear side of the top of the test bench 101, an electric sliding table 4 is fixedly installed. The front end of the electric sliding table 4 is fixedly connected to the rear end of the first fixture 102. The electric sliding table 4 is used to drive the first fixture 102 to automatically lift and lower, so as to facilitate the placement and removal of the VVT dry pulley.

[0036] Moreover, two vertical rods 5 are fixedly installed on the top of the test bench 101. Limiting plates 6 are fixedly installed on both sides of the first fixture 102. The two limiting plates 6 are respectively sleeved on the two vertical rods 5. With the cooperation of the limiting plates 6 and the vertical rods 5, the stability of the first fixture 102 during lifting and lowering can be improved.

[0037] By using the electric sliding table 4 to drive the first fixture 102 to move upward, the automatic opening and closing of the first fixture 102 can be realized, which is convenient for the staff to place the VVT dry pulley. At the same time, when disassembling the VVT dry pulley, it is also convenient for the staff to take the VVT dry pulley. The structure is simple and very time-saving and labor-saving to use. And with the cooperation of the limiting plates 6 and the vertical rods 5, not only the stability of the first fixture 102 during lifting and lowering can be improved, but also the first fixture 102 can be guided to facilitate the splicing of the first fixture 102 and the second fixture 103.

[0038] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil pressure test leakage device for detecting the sealing performance of a VVT dry pulley, characterized in that, Including: A test component (1), the test component (1) includes a test bench (101), on the top of the test bench (101), there are a first fixture (102) and a second fixture (103) distributed vertically. On the side where the first fixture (102) and the second fixture (103) are close to each other, there is a test cavity (104) for placing the VVT dry pulley for detection. At the center of the top of the first fixture (102), there is an oil inlet (105), and at the center of the bottom of the second fixture (103), there is a leakage detection port (106); A leakage detection device (2), the leakage detection device (2) includes a leakage sensor (201), and the leakage sensor (201) is communicated with the leakage detection port (106); An oil pressure component (3), the oil pressure component (3) includes an oil tank (301), the oil tank (301) is fixed on one side of the test bench (101), above the oil tank (301), there is an oil pump (302) communicated. The oil pump (302) is communicated with the oil inlet (105) through an oil pipeline (303). On the oil pipeline (303), there is a pressure sensor (304) and a pressure regulating valve (305) fixed, and the pressure regulating valve (305) is arranged on one side of the pressure sensor (304).

2. The oil pressure test leakage device according to claim 1, wherein: At the rear side of the top of the test bench (101), an electric slide table (4) is fixedly arranged, and the front end of the electric slide table (4) is fixedly connected with the rear end of the first fixture (102).

3. An oil pressure test leakage device according to claim 1, characterized in that: On the top of the test bench (101), two vertical rods (5) are fixedly arranged. On both sides of the first fixture (102), there are limit plates (6) fixedly arranged, and the two limit plates (6) are respectively sleeved on the two vertical rods (5).

4. The oil pressure test leakage device according to claim 1, characterized in that: On the top of the test bench (101), a bracket (7) for supporting the oil pump (302), the pressure sensor (304) and the pressure regulating valve (305) is fixedly arranged, and the bracket (7) is arranged on one side of the first fixture (102) and the second fixture (103).

5. The oil pressure test leakage device according to claim 1, characterized in that: Between the inner wall of the test cavity (104) and the top and bottom of the VVT dry pulley, there are rubber sealing rings (8) arranged. Inside the test cavity (104), there is a sealing sleeve (9), and the sealing sleeve (9) is sleeved between the VVT dry pulley and the two test cavities (104).

6. The oil pressure test leakage device according to claim 1, wherein: Between the first fixture (102) and the second fixture (103), they are detachably fixed together through a plurality of locking screws (10).

7. The oil pressure test leakage device according to claim 2, characterized in that: Inside the test bench (101), a control panel (11) for controlling the leakage sensor (201), the oil pump (302), the pressure sensor (304), the regulating valve and the electric slide table (4) is fixedly arranged, and the control panel (11) is arranged on one side of the leakage sensor (201).

Images