Engine oil seal, production detection equipment and detection method

Abstract

The invention discloses engine oil seal and production detection equipment and method, the engine oil seal and production detection equipment comprises a fixed base and a lifting frame, the lifting frame is fixedly mounted on the outer surface of the upper end of the fixed base, and a butt joint base is fixedly mounted in the middle of the upper end of the fixed base; a sealing cover is movably installed at the position, located above the butt joint base, of the inner side of the lifting frame, the lifting frame and the sealing cover are driven through a lifting rod, an installation base used for installing an oil seal is arranged on one side of the lifting frame, and the sealing cover is connected and fixed through the lifting rod and a lifting plate. Four groups of lifting guide rods are arranged between the lifting frame and the lifting plate, and a pressure measuring pump is fixedly mounted at the upper end of the lifting frame; the tool can be suitable for installation operation between the oil seal and annular metal pieces with different calibers, the installation step during oil seal detection operation is rapidly completed, the phenomenon that the oil seal structure is damaged during installation is avoided, and meanwhile the tool can be flexibly suitable for installation of oil seal structures with different calibers.

Description

Technical Field

[0001] The present invention belongs to the field of oil seal technology, and more specifically relates to an engine oil seal and production and testing equipment and a testing method. Background Art

[0002] The engine oil seal is an important part of the engine used to keep various components operating in a lubricating oil environment. Its main function is to prevent the leakage or seepage of lubricating oil or other oils. It can also prevent dust from seeping in and maintain good lubrication conditions for rolling or sliding friction parts, thereby extending their service life. The camshaft oil seal is used to prevent the leakage of lubricating oil at the camshaft. It is generally located between the camshaft and the bearing to play a sealing and lubricating role.

[0003] The prior art CN216846761U records an air tightness detection device for an automobile engine skeleton oil seal, comprising a base, a detection platform is fixedly installed in the middle of the top of the base, a column is fixedly installed on the top of the left end of the base, a rotating disk is movably clamped on the upper end of the column, and a limiting rod is fixedly connected to the bottom inside the column. Then the sealing cover is adjusted to descend and the sealing gasket is tightly attached to the top of the engine. At the same time, the upper end of the engine will be embedded in the inlay groove to achieve a sealing effect. It is only necessary to observe whether the air pressure value displayed on the control panel is reduced to determine whether the air tightness of the engine is qualified, thereby achieving the advantage of good detection effect.

[0004] The above-mentioned equipment has certain deficiencies when performing air tightness detection operations on oil seal structures. When performing camshaft oil seal structure detection operations, the oil seal needs to be installed in the shaft body, and then the shaft body is placed in the detection equipment for air tightness test. When performing the installation operation of the oil seal and the shaft body, shaft bodies and oil seal structures of different calibers cannot be installed quickly, thereby reducing the installation efficiency before detection. Secondly, when the oil seal is installed in the shaft body, the oil seal structure needs to be pressed inward, causing the oil seal to deform and bend as a whole. The oil seal structure is easily damaged during the installation process, and the oil seal and the shaft body are easily misaligned, thereby reducing the accuracy of the detection. At the same time, traditional equipment cannot install oil seals and shaft structures of different calibers, and it does not have a base-type splicing installation structure, so that it can only meet the detection operations of fixed-model oil seals, thereby reducing its scope of use. Summary of the invention

[0005] The purpose of the present invention is to provide an engine oil seal and production and testing equipment and a testing method, which can solve the existing problems.

[0006] The problem to be solved by the present invention is:

[0007] 1. When testing the camshaft oil seal structure, the oil seal needs to be installed in the shaft body, and then the shaft body is placed in the testing equipment for air tightness test. When installing the oil seal and the shaft body, shaft bodies and oil seal structures of different calibers cannot be quickly installed, which reduces the installation efficiency before testing;

[0008] 2. Secondly, when the oil seal is installed in the shaft body, the oil seal structure needs to be pressed inward, causing the oil seal to deform and bend as a whole. The oil seal structure is easily damaged during the installation process, and the oil seal and the shaft body are easily misaligned, reducing the accuracy of the detection;

[0009] 3. At the same time, traditional equipment cannot install oil seals and shaft structures of different calibers. It does not have a base-type splicing installation structure, so it can only meet the detection operation of fixed-model oil seals, reducing its scope of use.

[0010] The purpose of the present invention can be achieved through the following technical solutions:

[0011] An engine oil seal comprises a rubber ring, a sealing lip is fixedly mounted at the middle position of the inner side of the rubber ring, an annular notch is arranged between the rubber ring and the sealing lip, a dustproof lip is arranged on the outer surface of one end of the sealing lip, and the outer surface of the side edge of the dustproof lip is arranged obliquely, a first spring is sleeved on the outer surface of the sealing lip, and a groove is arranged on the outer surface of the sealing lip for matching with the first spring, and a metal frame is wrapped on the inner surface of the rubber ring, and the cross section of the metal frame is an L-shaped structure.

[0012] A production and testing device for an engine oil seal comprises a fixed base and a lifting frame, wherein the lifting frame is fixedly mounted on the outer surface of the upper end of the fixed base, a docking base is fixedly mounted in the middle position of the upper end of the fixed base, a sealing cover is movably mounted on the inner side of the lifting frame at a position above the docking base, the lifting frame and the sealing cover are driven by a lifting rod, a mounting seat for mounting the oil seal is provided on one side of the lifting frame, and by utilizing the setting of the mounting seat, the installation operation between the oil seal and the metal part can be quickly completed in the oil seal test link, and then the metal part with the oil seal installed is placed on the upper end of the docking base, the sealing cover is driven downward by the lifting rod so that the sealing cover is stuck at the upper end of the metal part, and the sealing performance of the oil seal in the metal part is tested by increasing the pressure in the sealing cover through a pressure measuring pump.

[0013] As a further technical solution of the present invention, the sealing covers are connected and fixed through a lifting rod and a lifting plate, four sets of lifting guide rods are arranged between the lifting frame and the lifting plate, a pressure measuring pump is fixedly installed on the upper end of the lifting frame, an air pipe is installed between the pressure measuring pump and the sealing cover, the pressure measuring pump uses the air pipe to perform a pressurization operation on the sealing cover, the sealing cover and the docking base are respectively docked at the upper and lower ends of the metal part, and the setting of the lifting guide rod can improve the stability of the sealing cover during the lifting operation.

[0014] As a further technical solution of the present invention, a splicing ring is sleeved on the outer surface of the upper end of the docking base, and the docking base and the splicing ring are docked and fixed by an air-tight ring. The upper end of the docking base is provided with an annular groove used in conjunction with the air-tight ring. When dealing with the sealing test operation of oil seal structures with different calibers, it is necessary to adapt to the docking installation of oil seals and metal parts with different calibers. By utilizing the setting of the splicing ring, when oil seals and metal parts with different calibers are installed and used, a splicing ring of corresponding caliber can be installed on the upper end of the docking base. The setting of the air-tight ring and the annular groove can improve the sealing performance of the splicing ring, so that the splicing ring can be docked with the lower ends of metal parts with different calibers to complete the installation test of oil seal structures with different calibers.

[0015] As a further technical solution of the present invention, an inner ring is provided at the middle position of the inner side of the mounting seat, and the mounting seat and the inner ring are movably connected by gears, and three groups of limit clamps are installed on the inner surface of the inner ring in a ring-shaped distribution. When installing the oil seal and the metal part, the annular metal part is placed on the inner side of the inner ring, and the mounting seat is rotated so that the mounting seat uses the three groups of arc guide blocks to synchronously drive the limit clamps to move, so that one ends of the three groups of limit clamps are respectively in contact with the surface of the annular metal part, so that the annular metal part and the inner ring are in a coaxial state, so that the annular metal part remains centered, so that the oil seal can be accurately sleeved on the middle of the annular metal part under the action of the guide rod.

[0016] As a further technical solution of the present invention, an arc guide block used in conjunction with a limit card is fixedly installed on the inner surface of the mounting seat, and the outer surface of one side of the arc guide block is an arc structure. A direction adjustment groove is provided in the middle of the inner ring, and two groups of guide rods are movably installed on the inner side of the direction adjustment groove. The arc guide block contacts the tail end of the limit card. When the mounting seat rotates, the inner ring remains fixed, and the mounting seat drives the arc guide block to rotate. When the arc guide block moves, its side arc structure abuts against the limit card. The ejection length of the limit card is adjusted by changing the position of the arc guide block, so that the three groups of limit card can meet the docking operation of metal parts with different calibers.

[0017] As a further technical solution of the present invention, the limit clamp includes a telescopic clamp and a connecting sleeve, the telescopic clamp is elastically installed on the inner side of the connecting sleeve, the connecting sleeve is docked and fixed with the fixed base, the telescopic clamp and the connecting sleeve are elastically connected by a second spring, and a roller is provided at the end of the telescopic clamp. The setting of the roller can reduce the friction between the telescopic clamp and the arc guide block. At the same time, the setting of the second spring makes an elastic reset structure between the telescopic clamp and the connecting sleeve. When the mounting seat is reused, the mounting seat is reversed so that the telescopic clamp completes the reset operation under the action of the second spring.

[0018] As a further technical solution of the present invention, movable sliders are fixedly installed at the lower ends of the two sets of guide rods. The two sets of movable sliders are driven by screw rods. When the oil seal and the metal part are docked, the user sleeves the oil seal between the two sets of guide rods and moves the oil seal downward. The two sets of guide rods are used to bend and deform the two sides of the oil seal. Figure 8 As shown in the figure, the size of the oil seal is adjusted so that the oil seal is sleeved on the inner side of the metal part after it is completely moved down. When the oil seal moves up with the metal part, the oil seal is separated from the two sets of guide rods to complete elastic reset, thereby sleeved on the inner side of the metal part.

[0019] As a further technical solution of the present invention, the guide rod is an overall truncated cone structure, the upper end diameter of the guide rod is smaller than the lower end diameter of the guide rod, the guide rod and the movable slider are fixed by a threaded joint, and the truncated cone structure of the guide rod can be synchronously adjusted in diameter when the oil seal moves downward to avoid damage to the oil seal structure.

[0020] A method for detecting an engine oil seal comprises the following steps:

[0021] Step 1: Use the mounting seat and the guide rod to complete the installation of the test oil seal and the annular metal part. Place the annular metal part and the oil seal on the upper end of the docking base, and use the lifting rod to drive the sealing cover to move downward so that the sealing cover is stuck on the upper end of the metal part, and the columnar structure in the sealing cover penetrates the oil seal;

[0022] Step 2: Increase the pressure in the sealing cover by using a pressure measuring pump so that the gas is injected from top to bottom into the gap between the metal part and the oil seal to test the sealing performance of the oil seal in the metal part.

[0023] Beneficial effects of the present invention:

[0024] 1. By setting the mounting seat and the limit clamp, when the engine oil seal production and testing equipment is used, it can be used for the installation operation between the oil seal and the annular metal parts of different calibers, and the installation steps during the oil seal testing operation can be completed quickly, thereby improving its testing efficiency;

[0025] During operation, when installing the oil seal and the metal part, place the annular metal part on the inner side of the inner sleeve ring, and rotate the mounting seat so that the mounting seat uses the three sets of arc guide blocks to synchronously drive the limit clamps to move, so that one end of the three sets of limit clamps are respectively in contact with the surface of the annular metal part, so that the annular metal part and the inner sleeve ring are in a coaxial state, so that the annular metal part remains centered, so that the oil seal can be accurately sleeved on the middle part of the annular metal part under the action of the guide rod, thereby improving the installation efficiency of the oil seal. When the mounting seat rotates, the inner sleeve ring remains in a fixed state, and the mounting seat drives the arc guide block to rotate. When the arc guide block moves, its side arc structure abuts against the limit clamps, and the arc guide block is moved. The position change of the block adjusts the ejection length of the limit clamp, so that the three groups of limit clamps can meet the docking operation of metal parts of different calibers, and at the same time, the annular metal parts can be kept in a centered state. The setting of the roller can reduce the friction between the telescopic clamp and the arc guide block. At the same time, the setting of the second spring makes the telescopic clamp and the connecting sleeve have an elastic reset structure. When the mounting seat is reused, the mounting seat is reversed so that the telescopic clamp completes the reset operation under the action of the second spring, which is convenient for the subsequent installation operation of the oil seal structure. The mounting seat completes the centering fixation of annular metal parts of different calibers, so that the oil seal can be installed and docked through the guide rod, thereby improving its installation efficiency.

[0026] 2. By setting the guide rod and the movable slider, when the engine oil seal production and testing equipment is used, the use of the mounting seat and the limit clamp is optimized to avoid damage to the oil seal structure during installation, and at the same time, it can be flexibly applied to the installation of oil seal structures with different calibers;

[0027] When the oil seal and the metal part are connected, the user puts the oil seal between the two sets of guide rods and moves the oil seal downward. The two sets of guide rods are set to make the oil seal structure bend inward along both sides. The two sets of guide rods are used to make the two sides of the oil seal bend and deform, changing the shape of the oil seal. Figure 8 As shown in the figure, the size of the oil seal is adjusted so that the oil seal is sleeved on the inner side of the metal part after it is completely moved down. When the oil seal moves up with the metal part, the oil seal is separated from the two sets of guide rods to complete elastic reset, so that the oil seal is sleeved on the inner side of the metal part. Secondly, the guide rod with a small upper and large lower frustum-shaped structure can optimize its use. When the oil seal moves down, it follows the change of the guide rod from top to bottom, and the caliber of the oil seal structure is adjusted synchronously, so that the oil seal structure gradually deforms and bends to avoid damage to the oil seal structure. Secondly, the movable slider can be driven to move by the screw rod, so as to adjust the distance between the two sets of guide rods, so that it can meet the deformation installation of oil seal structures with different calibers.

[0028] 3. By setting the splicing ring, when the engine oil seal production and testing equipment is used, it can meet the sealing test of oil seals of different calibers and their metal structures, thereby improving its scope of application;

[0029] During operation, the setting of the mounting seat can be used to quickly complete the installation operation between the oil seal and the metal part in the oil seal test phase. After the metal part with the oil seal installed is placed on the upper end of the docking base, the sealing cover is driven downward by the lifting rod so that the sealing cover is stuck at the upper end of the metal part. The sealing performance of the oil seal in the metal part is tested by increasing the pressure in the sealing cover through the pressure measuring pump. When dealing with the sealing test operation of oil seal structures with different calibers, it is necessary to adapt to the docking installation of oil seals and metal parts with different calibers. By using the setting of the splicing ring, when installing and using oil seals and metal parts with different calibers, the splicing ring of the corresponding caliber can be installed on the upper end of the docking base. The setting of the airtight ring and the annular groove can improve the sealing performance of the splicing ring, so that the splicing ring can be docked with the lower end of metal parts with different calibers, to complete the installation test of oil seal structures with different calibers, and simultaneously complete the installation of the sealing cover of the corresponding caliber. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a schematic diagram of the overall structure of an engine oil seal of the present invention;

[0032] Figure 2 This is an overall structural diagram of a production and testing device for engine oil seals of the present invention;

[0033] Figure 3 It is a cross-sectional structural diagram of a docking base in a production and testing device for an engine oil seal of the present invention;

[0034] Figure 4 It is a planar structural diagram of a mounting seat in a production and testing device for an engine oil seal of the present invention;

[0035] Figure 5 It is a planar structural diagram of a limit clamp in a production and testing device for an engine oil seal of the present invention;

[0036] Figure 6 This is an overall structural diagram of a guide rod in a production and testing device for an engine oil seal of the present invention;

[0037] Figure 7 It is a partial structural diagram of a guide rod in a production and testing device for an engine oil seal of the present invention;

[0038] Figure 8 The invention discloses a detection and installation schematic diagram of an engine oil seal.

[0039] In the figure: 1. Metal frame; 2. Dust lip; 3. First spring; 4. Sealing lip; 5. Rubber ring; 6. Fixed base; 7. Docking base; 8. Mounting seat; 9. Guide rod; 10. Lifting frame; 11. Sealing cover; 12. Lifting rod; 13. Pressure measuring pump; 14. Lifting guide rod; 15. Splicing ring; 16. Airtight ring; 17. Annular groove; 18. Inner ring; 19. Adjustment groove; 20. Limiting card; 21. Arc guide block; 22. Telescopic card head; 23. Second spring; 24. Connecting sleeve; 25. Roller; 26. Moving slider; 27. Screw; 28. Threaded joint; 29. ​​Gear. DETAILED DESCRIPTION

[0040] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0041] like Figure 1 As shown, an engine oil seal comprises a rubber ring 5, a sealing lip 4 is fixedly mounted at the middle position of the inner side of the rubber ring 5, and an annular notch is provided between the rubber ring 5 and the sealing lip 4, a dustproof lip 2 is provided on the outer surface of one end of the sealing lip 4, and the outer surface of the side edge of the dustproof lip 2 is inclined, a first spring 3 is sleeved on the outer surface of the sealing lip 4, and a groove is provided on the outer surface of the sealing lip 4 for matching with the first spring 3, and the inner surface of the rubber ring 5 is wrapped with a metal frame 1, and the cross section of the metal frame 1 is an L-shaped structure.

[0042] like Figure 2 As shown, a production and testing equipment for engine oil seals includes a fixed base 6 and a lifting frame 10. The lifting frame 10 is fixedly installed on the outer surface of the upper end of the fixed base 6. A docking base 7 is fixedly installed in the middle position of the upper end of the fixed base 6. A sealing cover 11 is movably installed on the inner side of the lifting frame 10 above the docking base 7. The lifting frame 10 and the sealing cover 11 are driven by a lifting rod 12. A mounting seat 8 for mounting the oil seal is provided on one side of the lifting frame 10. By using the setting of the mounting seat 8, the installation operation between the oil seal and the metal part can be quickly completed in the oil seal test link. When the metal part with the oil seal is installed is placed on the upper end of the docking base 7, the sealing cover 11 is driven downward by the lifting rod 12, so that the sealing cover 11 is stuck at the upper end of the metal part, and the sealing cover 11 is pressurized by the pressure measuring pump 13 to test the sealing performance of the oil seal in the metal part.

[0043] The sealing covers 11 are connected and fixed through the lifting plate by the lifting rod 12. Four sets of lifting guide rods 14 are arranged between the lifting frame 10 and the lifting plate. A pressure measuring pump 13 is fixedly installed on the upper end of the lifting frame 10. An air pipe is installed between the pressure measuring pump 13 and the sealing cover 11. The pressure measuring pump 13 uses the air pipe to increase the pressure in the sealing cover 11. The sealing cover 11 and the docking base 7 are respectively docked at the upper and lower ends of the metal parts. The setting of the lifting guide rod 14 can improve the stability of the sealing cover 11 during the lifting operation.

[0044] To solve the testing problem of oil seals with different diameters, such as Figure 3 As shown, a splicing ring 15 is sleeved on the outer surface of the upper end of the docking base 7, and the docking base 7 and the splicing ring 15 are docked and fixed by an airtight ring 16. An annular groove 17 used in conjunction with the airtight ring 16 is provided on the upper end of the docking base 7. When dealing with the sealing test operation of oil seal structures with different calibers, it is necessary to adapt to the docking installation of oil seals and metal parts with different calibers. By utilizing the setting of the splicing ring 15, when oil seals and metal parts with different calibers are installed and used, a splicing ring 15 of corresponding caliber can be installed on the upper end of the docking base 7. The setting of the airtight ring 16 and the annular groove 17 can improve the sealing performance of the splicing ring 15, so that the splicing ring 15 can be docked with the lower ends of metal parts with different calibers to complete the installation test of oil seal structures with different calibers.

[0045] To solve the installation problems before the oil seal test operation, such as Figure 4 As shown, an inner collar 18 is provided at the middle position of the inner side of the mounting seat 8, and the mounting seat 8 and the inner collar 18 are movably connected by a gear 29. Three groups of limit clamps 20 are installed on the inner surface of the inner collar 18 in a ring-shaped distribution. When installing the oil seal and the metal part, the annular metal part is placed on the inner side of the inner collar 18. By rotating the mounting seat 8, the mounting seat 8 uses three groups of arc guide blocks 21 to synchronously drive the limit clamps 20 to move, so that one end of the three groups of limit clamps 20 are respectively in contact with the surface of the annular metal part, so that the annular metal part is coaxial with the inner collar 18, so that the annular metal part remains centered, so that the oil seal can be accurately sleeved in the middle of the annular metal part under the action of the guide rod 9.

[0046] like Figure 4As shown, an arc guide block 21 used in conjunction with the limit clamp 20 is fixedly installed on the inner surface of the mounting seat 8, and the outer surface of one side of the arc guide block 21 is an arc structure. A direction adjustment groove 19 is provided in the middle of the inner collar 18, and two groups of guide rods 9 are movably installed on the inner side of the direction adjustment groove 19. The arc guide block 21 contacts the tail end of the limit clamp 20. When the mounting seat 8 rotates, the inner collar 18 remains fixed, and the mounting seat 8 drives the arc guide block 21 to rotate. When the arc guide block 21 moves, its side arc structure abuts against the limit clamp 20. The ejection length of the limit clamp 20 is adjusted by changing the position of the arc guide block 21, so that the three groups of limit clamps 20 can meet the docking operation of metal parts with different calibers.

[0047] To solve the installation problems before the oil seal test operation, such as Figure 5 As shown, the limit clamp 20 includes a telescopic clamp 22 and a connecting sleeve 24. The telescopic clamp 22 is elastically installed on the inner side of the connecting sleeve 24. The connecting sleeve 24 is docked and fixed with the fixed base 6. The telescopic clamp 22 and the connecting sleeve 24 are elastically connected by a second spring 23. A roller 25 is provided at the end of the telescopic clamp 22. The setting of the roller 25 can reduce the friction between the telescopic clamp 22 and the arc guide block 21. At the same time, the setting of the second spring 23 makes the telescopic clamp 22 and the connecting sleeve 24 have an elastic reset structure. When the mounting seat 8 is reused, the mounting seat 8 is reversed so that the telescopic clamp 22 completes the reset operation under the action of the second spring 23.

[0048] To solve the bending installation problem of oil seals with different diameters, such as Figure 6 As shown, the lower ends of the two sets of guide rods 9 are fixedly mounted with movable sliders 26, and the two sets of movable sliders 26 are driven by screw rods 27. When the oil seal and the metal part are docked, the user sleeves the oil seal between the two sets of guide rods 9 and moves the oil seal downward, and uses the two sets of guide rods 9 to bend and deform the two sides of the oil seal, as shown in FIG. Figure 8 As shown in the figure, the size of the oil seal is adjusted so that the oil seal is sleeved on the inner side of the metal part after it is completely moved down. When the oil seal moves up with the metal part, the oil seal is separated from the two sets of guide rods 9 to complete elastic reset, thereby sleeved on the inner side of the metal part.

[0049] like Figure 7 As shown, the guide rod 9 is a truncated cone structure as a whole, the upper end diameter of the guide rod 9 is smaller than the lower end diameter of the guide rod 9, the guide rod 9 and the movable slider 26 are fixed by a threaded joint 28, and the truncated cone structure of the guide rod 9 can adjust the diameter synchronously when the oil seal moves downward to avoid damaging the oil seal structure.

[0050] A method for detecting an engine oil seal comprises the following steps:

[0051] Step 1: Use the mounting seat 8 to cooperate with the guide rod 9 to complete the installation operation of the test oil seal and the annular metal part. Place the annular metal part and the oil seal on the upper end of the docking base 7, and use the lifting rod 12 to drive the sealing cover 11 to move downward, so that the sealing cover 11 is stuck on the upper end of the metal part, and the columnar structure in the sealing cover 11 penetrates the oil seal;

[0052] Step 2: pressurize the sealing cover 11 by the pressure measuring pump 13 so that the gas is injected from top to bottom into the gap between the metal part and the oil seal, and the sealing performance of the oil seal in the metal part is tested.

[0053] During use, when testing the camshaft oil seal structure, the oil seal needs to be installed in the shaft body, and then the shaft body is placed in the testing equipment for air tightness testing. During the installation of the oil seal and the shaft body, shaft bodies and oil seal structures of different calibers cannot be quickly installed, which reduces the installation efficiency before testing;

[0054] To this end, by providing the mounting seat 8 and the limit clamp 20, when the engine oil seal production and testing equipment is used, it can be used for the installation operation between the oil seal and the annular metal parts of different calibers, and the installation steps during the oil seal testing operation can be quickly completed, thereby improving its testing efficiency;

[0055] During operation, when installing the oil seal and the metal part, place the annular metal part on the inner side of the inner collar 18, and by rotating the mounting seat 8, the mounting seat 8 uses the three groups of arc guide blocks 21 to synchronously drive the limit clamp 20 to move, so that one end of the three groups of limit clamps 20 are respectively in contact with the surface of the annular metal part, so that the annular metal part and the inner collar 18 are in a coaxial state, so that the annular metal part remains centered, so that the oil seal can be accurately sleeved in the middle of the annular metal part under the action of the guide rod 9, thereby improving the installation efficiency of the oil seal. When the mounting seat 8 rotates, the inner collar 18 remains in a fixed state, and the mounting seat 8 drives the arc guide block 21 to rotate. When the arc guide block 21 moves, its side arc structure abuts against the limit clamp 20, and the arc guide block The position change of 21 adjusts the ejection length of the limit clamp 20, so that the three groups of limit clamps 20 can meet the docking operation of metal parts with different calibers, and at the same time, the annular metal part can be kept in a centered state. The setting of the roller 25 can reduce the friction between the telescopic clamp 22 and the arc guide block 21. At the same time, the setting of the second spring 23 makes the telescopic clamp 22 and the connection sleeve 24 have an elastic reset structure. When the mounting seat 8 is reused, the mounting seat 8 is reversed so that the telescopic clamp 22 completes the reset operation under the action of the second spring 23, which is convenient for the subsequent installation operation of the oil seal structure. The mounting seat 8 completes the centering fixation of annular metal parts with different calibers, so that the oil seal can be installed and docked through the guide rod 9, thereby improving its installation efficiency.

[0056] Secondly, when the oil seal is installed in the shaft, it is necessary to press the oil seal structure inward, causing the oil seal to deform and bend as a whole. The oil seal structure is easily damaged during the installation process, and the oil seal and the shaft are easily misaligned, reducing the accuracy of the detection;

[0057] To this end, by providing the guide rod 9 and the movable slider 26, when the engine oil seal production and testing equipment is used, the use of the mounting seat 8 and the limit clamp 20 is optimized to avoid damage to the oil seal structure during installation, and at the same time, the installation of oil seal structures with different calibers can be flexibly applied;

[0058] When the oil seal and the metal part are connected, the user sleeves the oil seal between the two sets of guide rods 9 and moves the oil seal downward. The two sets of guide rods 9 make the oil seal structure bend inward along both sides. The two sets of guide rods 9 are used to make the two sides of the oil seal bend and deform, changing the shape of the oil seal. Figure 8 As shown in , the size of the oil seal is adjusted so that the oil seal is sleeved on the inner side of the metal part after it is completely moved down. When the oil seal moves up with the metal part, the oil seal separates from the two sets of guide rods 9 to complete elastic reset, so that the oil seal is sleeved on the inner side of the metal part. Secondly, the guide rod 9 with a small upper and large lower frustum-shaped structure can optimize its use. When the oil seal moves down, it follows the change of the guide rod 9 from top to bottom, and the caliber of the oil seal structure is adjusted synchronously, so that the oil seal structure is gradually deformed and bent to avoid damage to the oil seal structure. Secondly, the movable slider 26 can be driven to move by the screw rod 27, so as to adjust the distance between the two sets of guide rods 9, so that it can meet the deformation installation of oil seal structures with different calibers.

[0059] At the same time, traditional equipment cannot install oil seals and shaft structures of different calibers, and it does not have a base-type splicing installation structure, so it can only meet the detection operation of fixed-type oil seals, reducing its scope of use;

[0060] To this end, by providing the splicing ring 15, when the engine oil seal production and testing equipment is used, it can meet the sealing test of oil seals of different calibers and their metal structures, thereby improving its application range;

[0061] During operation, by utilizing the setting of the mounting seat 8, the installation operation between the oil seal and the metal part can be quickly completed in the oil seal test link, and then the metal part installed with the oil seal is placed on the upper end of the docking base 7, and the sealing cover 11 is driven downward by the lifting rod 12, so that the sealing cover 11 is stuck at the upper end of the metal part, and the sealing performance of the oil seal in the metal part is tested by increasing the pressure in the sealing cover 11 through the pressure measuring pump 13. When dealing with the sealing test operation of oil seal structures with different calibers, it is necessary to adapt to the docking installation of oil seals and metal parts with different calibers. By utilizing the setting of the splicing ring 15, when oil seals and metal parts with different calibers are installed and used, the splicing ring 15 of the corresponding caliber can be installed on the upper end of the docking base 7, and the setting of the airtight ring 16 and the annular groove 17 can improve the sealing performance of the splicing ring 15, so that the splicing ring 15 can be docked with the lower end of metal parts with different calibers, and the installation test of oil seal structures with different calibers is completed, and the installation of the sealing cover 11 of the corresponding caliber is completed synchronously.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An engine oil seal, characterized in that: The invention comprises a rubber ring (5), a sealing lip (4) is fixedly mounted at the middle position of the inner side of the rubber ring (5), and an annular notch is provided between the rubber ring (5) and the sealing lip (4), a dustproof lip (2) is provided on the outer surface of one end of the sealing lip (4), and the outer surface of the side edge of the dustproof lip (2) is inclined, a first spring (3) is sleeved on the outer surface of the sealing lip (4), and a groove for matching with the first spring (3) is provided on the outer surface of the sealing lip (4), and the inner surface of the rubber ring (5) is wrapped with a metal frame (1), and the cross section of the metal frame (1) is an L-shaped structure.

2. A production and testing equipment for engine oil seals, characterized in that: The invention comprises a fixed base (6) and a lifting frame (10), wherein the lifting frame (10) is fixedly mounted on the outer surface of the upper end of the fixed base (6), a docking base (7) is fixedly mounted at the middle position of the upper end of the fixed base (6), a sealing cover (11) is movably mounted on the inner side of the lifting frame (10) at a position above the docking base (7), the lifting frame (10) and the sealing cover (11) are driven by a lifting rod (12), and a mounting seat (8) for mounting an oil seal is provided on one side of the lifting frame (10).

3. The production and testing equipment for engine oil seals according to claim 2, characterized in that: The sealing covers (11) are connected and fixed via a lifting plate via a lifting rod (12); four groups of lifting guide rods (14) are provided between the lifting frame (10) and the lifting plate; a pressure measuring pump (13) is fixedly installed at the upper end of the lifting frame (10); and an air pipe is installed between the pressure measuring pump (13) and the sealing cover (11).

4. The production and testing equipment for engine oil seals according to claim 2, characterized in that: The upper outer surface of the docking base (7) is sleeved with a splicing ring (15), the docking base (7) and the splicing ring (15) are docked and fixed via an airtight ring (16), and the upper end of the docking base (7) is provided with an annular groove (17) used in conjunction with the airtight ring (16).

5. The production and testing equipment for engine oil seals according to claim 2, characterized in that: An inner sleeve ring (18) is provided at the middle of the inner side of the mounting seat (8), and the mounting seat (8) and the inner sleeve ring (18) are movably connected via a gear (29), and three groups of limit clamps (20) are installed in an annular shape on the inner surface of the inner sleeve ring (18).

6. The production and testing equipment for engine oil seals according to claim 5, characterized in that: An arc-shaped guide block (21) used in conjunction with a position-limiting clamp (20) is fixedly mounted on the inner surface of the mounting seat (8); an outer surface of one side of the arc-shaped guide block (21) is an arc-shaped structure; a direction-adjusting groove (19) is provided in the middle of the inner sleeve ring (18); and two groups of guide rods (9) are movably mounted on the inner side of the direction-adjusting groove (19); the arc-shaped guide block (21) contacts the rear end of the position-limiting clamp (20).

7. The production and testing equipment for engine oil seals according to claim 5, characterized in that: The limit clamp (20) comprises a telescopic clamp (22) and a connecting sleeve (24), wherein the telescopic clamp (22) is elastically mounted on the inner side of the connecting sleeve (24), the connecting sleeve (24) is butt-jointed and fixed to a fixed base (6), the telescopic clamp (22) and the connecting sleeve (24) are elastically connected via a second spring (23), and a roller (25) is provided at the end of the telescopic clamp (22).

8. The production and testing equipment for engine oil seals according to claim 5, characterized in that: The lower ends of the two groups of guide rods (9) are fixedly mounted with movable slide blocks (26), and the two groups of movable slide blocks (26) are driven by a screw rod (27).

9. The production and testing equipment for engine oil seals according to claim 8, characterized in that: The guide rod (9) is a truncated cone structure as a whole, the upper end diameter of the guide rod (9) is smaller than the lower end diameter of the guide rod (9), and the guide rod (9) and the movable slider (26) are butt-jointed and fixed via a threaded joint (28).

10. A method for detecting an engine oil seal, characterized in that: The following steps are involved: Step 1: Use the mounting seat (8) and the guide rod (9) to complete the installation operation of the test oil seal and the annular metal part, place the annular metal part and the oil seal on the upper end of the docking base (7), and use the lifting rod (12) to drive the sealing cover (11) to move downward, so that the sealing cover (11) is stuck on the upper end of the metal part, and at the same time, the columnar structure inside the sealing cover (11) penetrates the oil seal; Step 2: pressurize the sealing cover (11) by means of a pressure measuring pump (13), so that gas is injected from top to bottom into the space between the metal part and the oil seal, and the sealing performance of the oil seal in the metal part is tested.

Images