Oil seal press fitting detection equipment

Abstract

The utility model relates to the technical field of sealing detection, in particular to oil seal press fitting detection equipment. Comprising a platform, a pressurizing assembly is arranged on the platform, a sliding way is fixed to the platform, a sliding block is arranged in the sliding way in a sliding mode, the sliding block can slide in the sliding way in the transverse direction, a pipe body is elastically and slidably connected to the sliding block in the vertical direction, oil seals are installed in the two ends of the pipe body in a pressed mode, and a pressure detection device fixedly communicates with the pipe body. The pressurizing assembly is communicated with the interior of the pipe body, an extrusion assembly and a blocking assembly are arranged on the left side and the right side of the pipe body correspondingly, the extrusion assembly comprises a transversely-arranged telescopic rod, a vertical sliding assembly is fixed to the telescopic end of the telescopic rod, and a rotary plugging assembly is elastically and slidably connected to the interior of the vertical sliding assembly in the vertical direction. According to the detection equipment, pipe bodies with different diameters can be replaced, so that sealing detection can be carried out on oil seals with different diameters.

Description

Technical Field

[0001] This utility model relates to the field of sealing detection technology, specifically to an oil seal press-fitting detection device. Background Technology

[0002] In practical applications, oil seals isolate the lubricated parts from the output parts in the transmission components to prevent lubricating oil leakage. When testing the sealing performance of the press-fitted oil seal, if the effect of the friction generated by the transmission causing the oil seal to heat up on the sealing effect is not considered, it is difficult to simulate the working environment of the oil seal in actual application, resulting in inaccurate test results.

[0003] Patent document CN213812864U discloses an oil seal press-fit testing device, including an operating table and a gantry frame. The gantry frame is set on the operating table, and a positioning clamping structure is provided on the operating table. A press-fit testing structure is provided on the lower end face of the crossbeam of the gantry frame, and the press-fit testing structure is located above the positioning clamping structure. The positioning clamping structure is set on the operating table to position and clamp the cylinder. The gantry frame is set on the upper part of the operating table, and the press-fit testing structure is set inside the gantry frame. The oil seal is placed on the cylinder, and the press-fit testing structure is controlled to press the oil seal into the mounting groove of the cylinder. During the press-fitting process, the clamping force is effectively controlled, and the levelness is detected at the clamping position to determine whether the oil seal press-fitting operation is in place. The device has a simple structure and a high degree of automation. In practical applications, this oil seal press-fit testing device cannot test two oil seals simultaneously because it only has one press head. Furthermore, the press head cannot rotate during the testing process. In actual applications, oil seals isolate the lubricated parts of the transmission components from the output parts to prevent lubricating oil leakage. This device does not consider the impact of friction generated during transmission on the sealing effect caused by the oil seal heating up. Therefore, it is difficult to simulate the working environment of oil seals in actual applications, resulting in inaccurate test results.

[0004] To address the problems with the technical solutions in the aforementioned patent documents, patent document CN221100067U discloses an oil seal press-fit testing device, comprising a housing with a testing assembly. The testing assembly includes a servo motor, a bidirectional screw, a clamping block, a guide groove, a frustum, a tube, an air pump, a connecting pipe, an annular groove, and an oil seal body. The servo motor is located on one side of the housing. One end of the bidirectional screw is connected to the drive end of the servo motor, and the other end is rotatably connected to the inner wall of the housing. The clamping block is threadedly connected to the bidirectional screw. The guide groove is located at the top of the housing, allowing the clamping block to move only left and right. The frustum is located on one side of the clamping block. The tube is mounted on the top of the housing, and the air pump is located at the top of the housing for pressurizing the tube. The connecting pipe is installed between the tube and the air pump. Two annular grooves are located at both ends of the tube, and the oil seal body is embedded inside the annular grooves. However, this oil seal press-fit testing device is inconvenient for testing the sealing performance of press-fit oil seals of different diameters, limiting its applicability. Utility Model Content

[0005] The main purpose of this invention is to provide an oil seal press-fitting testing device that can perform sealing performance testing on oil seals of different diameters and has a wide range of applications.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] An oil seal press-fitting testing device includes a platform with a pressurizing component and a slide rail fixed on the platform. A slider is slidably mounted inside the slide rail and can slide in the lateral direction within the slide rail. A tube is elastically slidably connected to the slider in the vertical direction, and the axial direction of the tube is parallel to the sliding direction of the slider. Oil seals are press-fitted into both ends of the tube. A pressure detection device is fixedly connected to the tube. The pressurizing component is connected to the inside of the tube. A squeezing component and a blocking component are respectively provided on the left and right sides of the tube. The squeezing component includes a lateral telescopic rod, and a vertical sliding component is fixed to the telescopic end of the telescopic rod. The vertical sliding component is slidably connected to the platform, and a rotating sealing component is elastically slidably connected in the vertical direction within the vertical sliding component.

[0008] The blocking assembly includes a fixed plate fixed to the platform, and a rotating blocking component is elastically slidably mounted on the fixed plate in the vertical direction.

[0009] Specifically, the pressurization assembly includes an air pump fixed on the platform, a hose fixedly connected to the air outlet of the air pump, a female connector fixedly connected to the air outlet of the hose, and a female connector fixedly connected to the hose body, with the female connector and the female connector being sealed together.

[0010] Specifically, the pressure detection device is a pressure gauge, which is connected to the inside of the pipe.

[0011] Specifically, a plurality of vertically arranged insert rods are fixed at the lower end of the tube body. The insert rods are slidably inserted into the insertion holes of the slider. A second spring is fixedly installed in the insertion holes, and the upper end of the second spring is tightly pressed against the lower end of the insert rod.

[0012] Specifically, the rotating sealing assembly includes a motor, which is arranged horizontally. A plug is concentrically fixed on the output shaft of the motor, facing the pipe body. The plug is in the shape of an inverted frustum. The rotating sealing assemblies on the left and right sides are symmetrically arranged.

[0013] Specifically, the vertical sliding component includes a vertically arranged slide rail, the lower end of which is slidably connected to the platform. A lifting plate is slidably arranged inside the slide rail, and the lifting plate is connected to the slide rail by a first spring. The motor of the sealing component on the left side is fixedly connected to the lifting plate.

[0014] Specifically, the fixed plate has a vertical groove in the vertical direction, and a lifting block is slidably engaged in the groove. The lifting block is connected to the fixed plate by a third spring, and the motor of the sealing assembly on the right side is fixedly connected to the lifting block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This testing equipment can be fitted with pipes of different diameters, thus enabling sealing tests on oil seals of different diameters.

[0017] 2. The pipe body is easy to replace. The pipe body can move in the lateral direction. After the telescopic rod is activated, the plugs on the left and right sides can come into contact with the oil seal, which can quickly seal the plugs with the oil seal and quickly test the seal.

[0018] 3. During the sealing test of the oil seal, the plug rotates and contacts the oil seal, which can effectively simulate the working environment of the oil seal in actual application and improve the accuracy of the test results.

[0019] 4. The motor and plug can move vertically, and the pipe body can move vertically. The plug is shaped like an inverted frustum. After the plug presses against the oil seal, the motor, plug, and pipe body automatically become concentric, which can ensure the concentricity of the plug and the oil seal, improve the sealing performance of the plug and the oil seal, and improve the accuracy of the test results. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the testing equipment.

[0021] Figure 2 This is a top view of the testing equipment.

[0022] Figure 3 for Figure 2 Sectional view along the AA direction.

[0023] The components in the attached diagram are named as follows: 1. Platform, 2. Telescopic rod, 3. Slide rail, 4. Lifting plate, 5. First spring, 6. Motor, 7. Plug, 8. Slide track, 9. Slider, 10. Insert rod, 11. Second spring, 12. Fixing plate, 13. Lifting block, 14. Third spring, 15. Air pump, 16. Hoses, 17. Sub-connector, 18. Pressure gauge, 19. Female connector, 20. Pipe body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1: Refer to Figures 1-3 As shown, an oil seal press-fit testing device includes a platform 1, on which a pressurization component is installed.

[0026] A slide rail 8 is fixed on the platform 1, and a slider 9 is slidably installed inside the slide rail 8. The slider 9 can slide in the horizontal direction inside the slide rail 8, and the tube 20 is elastically slidably connected to the slider 9 in the vertical direction.

[0027] Specifically, a plurality of vertically arranged insert rods 10 are fixed at the lower end of the tube body 20. The insert rods 10 are slidably inserted into the insertion holes of the slider 9. A second spring 11 is fixedly installed in the insertion holes, and the upper end of the second spring 11 is tightly pressed against the lower end of the insert rod 10.

[0028] The axial direction of the tube body 20 is parallel to the sliding direction of the slider 9. Oil seals are press-fitted into both ends of the tube body 20, and a pressure detection device is fixedly connected to the tube body 20. The pressure detection device is a pressure gauge 18, which is connected to the inside of the tube body 20.

[0029] The booster assembly is connected to the inside of the tube 20.

[0030] The left and right sides of the tube body 20 are respectively provided with extrusion components and blocking components.

[0031] The extrusion assembly includes a horizontally arranged telescopic rod 2, a vertical sliding assembly fixed to the telescopic end of the telescopic rod 2, the vertical sliding assembly being slidably connected to the platform 1, and a rotating sealing assembly being elastically slidably connected in the vertical direction within the vertical sliding assembly.

[0032] The blocking assembly includes a fixed plate 12 fixed on the platform 1, and a rotating blocking component is elastically slidably disposed on the fixed plate 12 in the vertical direction.

[0033] The rotating sealing assembly includes a motor 6, which is arranged horizontally. A plug 7 is concentrically fixed on the output shaft of the motor 6, facing the pipe body 20. The plug 7 is in the shape of an inverted frustum. The rotating sealing assemblies on the left and right sides are symmetrically arranged.

[0034] The vertical sliding assembly includes a vertically arranged slide rail 3, the lower end of which is slidably connected to the platform 1. A lifting plate 4 is slidably arranged inside the slide rail 3. The lifting plate 4 is connected to the slide rail 3 by a first spring 5. The motor 6 of the sealing assembly on the left side is fixedly connected to the lifting plate 4.

[0035] The fixed plate 12 has a vertical groove in the vertical direction, and a lifting block 13 is slidably engaged in the vertical groove. The lifting block 13 is connected to the fixed plate 12 by a third spring 14. The motor 6 of the sealing assembly on the right side is fixedly connected to the lifting block 13.

[0036] During testing, two oil seals are pressed into both ends of the tube body 20. The telescopic rod 2 is activated, causing the vertical sliding component and the rotating sealing component on one side to push the tube body 20 to the right. When the plug 7 is inserted into the oil seal on one side, since the lifting plate 4 and the lifting block 13 can move vertically, the tube body 20 can also move vertically. Moreover, the plug 7 is an inverted frustum shape. When the plug 7 presses the oil seal, the motor 6, the plug 7, the tube body 20, and the oil seal can automatically become concentric, which can improve the sealing performance of the plug 7 and the oil seal and improve the accuracy of the test results.

[0037] The pipe body 20 can move in the lateral direction. After the telescopic rod 2 is activated, the plugs 7 on the left and right sides can make contact with the oil seal, which can quickly seal the oil seal and perform a rapid seal test.

[0038] Then, a set pressure is applied to the pipe body 20 through the pressurization component, and the motor 6 is started, causing the plug 7 to rotate. The plug 7 rotates and makes sealing contact with the oil seal, thus simulating the working environment of the oil seal in actual application. This allows for testing of the sealing performance after the oil seal temperature rises, improving the accuracy of the test results. After a set time, the change in the pressure gauge 18 is observed. If the pressure gauge 18 value is within the required range, the oil seal is considered qualified. Otherwise, the oil seal is considered unqualified.

[0039] Example 2: Based on Example 1, referring to... Figures 1-3 As shown, the pressurization assembly includes an air pump 15 fixed on the platform 1, a hose 16 fixedly connected to the air outlet of the air pump 15, a female connector 17 fixedly connected to the air outlet of the hose 16, and a female connector 19 fixedly connected to the pipe body 20. The female connector 17 and the female connector 19 are sealed together.

[0040] After disassembling the male connector 17 and the female connector 19, the pipe body 20 can be replaced, which is convenient. Different diameter pipe bodies 20 can be used, thus enabling sealing tests on oil seals of different diameters.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oil seal press-fit testing device, comprising a platform (1), wherein a pressurization component is provided on the platform (1), characterized in that, A slide rail (8) is fixed on the platform (1). A slider (9) is slidably installed in the slide rail (8). The slider (9) can slide in the horizontal direction in the slide rail (8). A tube (20) is elastically slidably connected to the slider (9) in the vertical direction. The axial direction of the tube (20) is parallel to the sliding direction of the slider (9). Oil seals are press-fitted into both ends of the tube (20). A pressure detection device is fixedly connected to the tube (20). The pressurization component is connected to the inside of the tube (20). A squeezing component and a blocking component are respectively installed on the left and right sides of the tube (20). The squeezing component includes a horizontally arranged telescopic rod (2). A vertical sliding component is fixed on the telescopic end of the telescopic rod (2). The vertical sliding component is slidably connected to the platform (1). A rotating sealing component is elastically slidably connected in the vertical direction in the vertical direction in the vertical sliding component. The blocking component includes a fixed plate (12) fixed on the platform (1). A rotating sealing component is elastically slidably installed in the vertical direction of the fixed plate (12).

2. The oil seal press-fitting testing equipment according to claim 1, characterized in that, The pressurization assembly includes an air pump (15) fixed on the platform (1), a hose (16) fixedly connected to the air outlet of the air pump (15), a sub-connector (17) fixedly connected to the air outlet of the hose (16), and a female connector (19) fixedly connected to the pipe body (20). The sub-connector (17) and the female connector (19) are sealed together.

3. The oil seal press-fitting testing equipment according to claim 1, characterized in that, The pressure detection device is a pressure gauge (18), which is connected to the inside of the tube body (20).

4. The oil seal press-fitting testing equipment according to claim 1, characterized in that, The lower end of the tube (20) is fixed with a plurality of vertically arranged insert rods (10). The insert rods (10) are slidably inserted into the insertion holes of the slider (9). A second spring (11) is fixedly installed in the insertion holes, and the upper end of the second spring (11) is tightly pressed against the lower end of the insert rod (10).

5. An oil seal press-fitting testing device according to any one of claims 1-4, characterized in that, The rotating sealing assembly includes a motor (6), which is arranged horizontally. A plug (7) is concentrically fixed on the output shaft of the motor (6). The plug (7) faces the pipe body (20) and is in the shape of an inverted frustum. The rotating sealing assemblies on the left and right sides are symmetrically arranged.

6. The oil seal press-fitting testing equipment according to claim 5, characterized in that, The vertical sliding assembly includes a vertically arranged slide rail (3), the lower end of which is slidably connected to the platform (1). A lifting plate (4) is slidably arranged inside the slide rail (3). The lifting plate (4) is connected to the slide rail (3) by a first spring (5). The motor (6) of the sealing assembly on the left side is fixedly connected to the lifting plate (4).

7. The oil seal press-fitting testing equipment according to claim 5, characterized in that, The fixed plate (12) has a vertical groove in the vertical direction, and a lifting block (13) is slidably engaged in the vertical groove. The lifting block (13) is connected to the fixed plate (12) through a third spring (14). The motor (6) of the sealing assembly on the right side is fixedly connected to the lifting block (13).

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