Oil seal installation tool

Abstract

The utility model relates to an oil seal installation tool used for installing an oil seal, the oil seal installation tool comprises a guide device comprising a first end and a second end, the first end is connected to the end of a crankshaft, and the oil seal is connected to the guide device in a sleeving mode and can move along the guide device; a cavity is formed in the press-fitting device, an opening is formed in one end of the cavity, and the open end of the press-fitting device is connected to the outer side of the guide device in a sleeving mode and abuts against the oil seal; the power device abuts against the end, away from the opening, of the press-fitting device so as to push the press-fitting device to move along the guide device. When the oil seal needs to be installed, the guide device is installed at the end of the crankshaft, the press-fitting device is connected to the outer side of the guide device in a sleeving mode and abuts against the oil seal, and the power device abuts against the press-fitting device to push the press-fitting device to move, so that the oil seal is pushed to move, the oil seal is installed, an engine does not need to be disassembled, and the oil seal is directly installed; and safety and rapidness are realized.

Description

Technical Field

[0001] The present disclosure relates to the technical field of oil seal assembly, and in particular, to an oil seal installation tool. Background Art

[0002] On the automobile engine assembly line, the rear oil seal is automatically pressed and installed using manual loading equipment during the assembly process. If quality problems occur during repair, the poorly pressed rear oil seal needs to be manually removed, and the defective engine is transported from the rework area to the front station of the rear oil seal pressing equipment process using a platform car. This process requires the equipment to be switched to manual mode, and the rear oil seal pressing process production line needs to be stopped and waited. Only after the defective engine is safely put on the line can the equipment be switched to automatic mode. This process is cumbersome and time-consuming, and must be operated by at least two people, which not only affects the production line operation rate and wastes manpower, but also poses a safety hazard of the engine falling and injuring or squeezing people during the transportation of the defective engine. Utility Model Content

[0003] The purpose of the present disclosure is to provide an oil seal installation tool, which can solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides an oil seal installation tool for installing an oil seal, the oil seal installation tool comprising: a guide device, comprising a first end and a second end opposite to the first end, the first end being used to be detachably connected to the end of a crankshaft, the oil seal being sleeved on the guide device and movable along the guide device; a press-fitting device, having a cavity inside and an opening at one end of the cavity, the open end of the press-fitting device being sleeved on the outer side of the guide device and abutting against the oil seal; and a power device abutting against one end of the press-fitting device away from the opening to push the press-fitting device to move along the guide device.

[0005] Optionally, a magnet is provided at the first end, and the guide device is adsorbed on the end of the crankshaft through the magnet.

[0006] Optionally, the first end is provided with a mounting hole, and the magnet is arranged in the mounting hole and fixed by a fixing bolt.

[0007] Optionally, the guide device is configured as a cylindrical structure, the outer ring of the second end is configured as a conical surface, and the diameter of the conical surface gradually decreases from the first end to the second end.

[0008] Optionally, a rotor press-fitting hole protruding from the end surface is provided at the center of the crankshaft, and a positioning groove for sleeved on the outside of the rotor press-fitting hole is provided at the first end.

[0009] Optionally, the second end is provided with a handle.

[0010] Optionally, the oil seal installation tooling further includes a force-bearing top block, the pressing device is configured as a flexible elastic member, and the force-bearing top block is disposed at an end of the pressing device facing away from the opening.

[0011] Optionally, the power device includes a pneumatic hammer and a pressing head. A positioning hole is provided at an end of the force-bearing top block facing away from the opening. A positioning pin for insertion into the positioning hole and a limiting plate with a diameter larger than that of the positioning hole are provided at one end of the pressing head, and the other end of the pressing head is connected to the pneumatic hammer.

[0012] Optionally, an oil seal pressing hole is provided on the crankshaft. The outer diameter of the end of the pressing device with the opening is larger than the diameter of the oil seal pressing hole, and an annular protrusion protruding from the end wall is provided on the inner circle of this end. The width and diameter of the annular protrusion are the same as those of the oil seal.

[0013] Optionally, the oil seal installation tooling is used to install the rear oil seal on an automotive engine.

[0014] Through the above technical solution, when an oil seal needs to be installed, the guiding device is installed at the end of the crankshaft, the oil seal is sleeved on the guiding device, the pressing device is sleeved outside the guiding device and abuts against the oil seal, and the power device abuts against the pressing device and pushes the pressing device to move along the guiding device, thereby pushing the oil seal to move so as to install the oil seal. In this way, it is not necessary to disassemble the engine, and the oil seal can be directly installed, which is safe and fast.

[0015] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0017] Figure 1 is an exploded view of the oil seal installation tooling in the present disclosure;

[0018] Figure 2 is a bottom view of the guiding device in the present disclosure;

[0019] Figure 3 is a top view of the guiding device in the present disclosure;

[0020] Figure 4 is a top view of the pressing device in the present disclosure;

[0021] Figure 5 is a schematic end view of the crankshaft in the present disclosure.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS

[0023] 1. Guide device; 11. Second end; 12. Handle; 13. Mounting hole; 14. Magnet; 15. Positioning groove; 16. Fixing bolt; 17. First end; 2. Press-fitting device; 21. Annular protrusion; 3. Power device; 31. Pressing head; 311. Positioning pin; 312. Limiting plate; 32. Pneumatic hammer; 4. Oil seal; 5. Force-bearing top block; 51. Positioning hole; 6. Crankshaft; 61. Oil seal press-fitting hole; 62. Rotor press-fitting hole. Specific embodiments

[0024] The following will describe in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the present disclosure, and are not used to limit the present disclosure.

[0025] In the present disclosure, unless otherwise stated, the directional terms such as "inner" and "outer" refer to the inside and outside relative to the contour of the component or structure itself. In addition, it should be noted that the terms such as "first" and "second" are used to distinguish one element from another, and do not have sequentiality and importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings represent the same elements.

[0026] As Figure 1 shown, the present disclosure provides an oil seal installation tooling for installing the oil seal 4. The oil seal installation tooling includes: a guide device 1, including a first end 17 and a second end 11 opposite to the first end 17. The first end 17 is used to detachably connect to the end of the crankshaft 6. The oil seal 4 is sleeved on the guide device 1 and can move along the guide device 1; a press-fitting device 2, having a cavity inside and an opening at one end of the cavity. The open end of the press-fitting device 2 is sleeved on the outside of the guide device 1 and abuts against the oil seal 4; and a power device 3, abutting against the end of the press-fitting device 2 away from the opening to push the press-fitting device 2 to move along the guide device 1.

[0027] Through the above technical solution, when the oil seal 4 needs to be installed, the guide device 1 is installed at the end of the crankshaft 6, the oil seal 4 is sleeved on the guide device 1, the press-fitting device 2 is sleeved on the outside of the guide device 1 and abuts against the oil seal 4, and the power device 3 abuts against the press-fitting device 2 to push the press-fitting device 2 to move along the guide device 1, thereby pushing the oil seal 4 to move to install the oil seal 4. In this way, there is no need to disassemble the engine, and the oil seal 4 can be directly installed, which is safe and fast.

[0028] As an optional embodiment, as Figures 2 - 3 shown, the first end 17 is provided with a magnet 14. The guide device 1 is adsorbed on the end of the crankshaft 6 through the magnet 14. Using the magnet 14 for adsorption is convenient for installation and disassembly, and there is no need to additionally process the crankshaft 6 or use tools.

[0029] Optionally, the first end 17 is provided with a mounting hole 13. The magnet 14 is arranged in the mounting hole 13 and fixed by a fixing bolt 16. For example, the fixing bolt 16 is a bolt which is threadedly connected to the first end 17 and also threadedly connected to the magnet 14 to fix the magnet 14 in the mounting hole 13. When the magnet 14 needs to be disassembled, the fixing bolt 16 can also push out the magnet 14.

[0030] As an alternative embodiment, as Figure 1 shown, the guiding device 1 is configured as a cylindrical structure. The outer circumference of the second end 11 is configured as a conical surface and the diameter of this conical surface gradually decreases from the first end 17 to the second end 11. Since the oil seal 4 is annular, in order to match the shape of the oil seal 4, the guiding device 1 is configured as a cylindrical structure and the second end 11 is provided with a conical surface to facilitate the sleeving of the oil seal 4, so as to further guide when sleeving the oil seal 4.

[0031] As an alternative embodiment, as Figure 2 and Figure 5 shown, a rotor press-fitting hole 62 protruding from the end face is provided at the center of the crankshaft 6 for installing the rotor of the engine. The first end 17 is provided with a positioning groove 15 for sleeving outside the rotor press-fitting hole 62. The positioning groove 15 is located at the center of the end face of the guiding device 1. When installing the guiding device 1, the positioning groove 15 is sleeved outside the rotor press-fitting hole 62 to position the guiding device 1.

[0032] As an alternative embodiment, as Figure 1 shown, the second end 11 is provided with a handle 12 which extends beyond the end face of the second end 11, facilitating the taking of the guiding device 1. The total length of the guiding device 1 plus the part of the handle 12 protruding from the guiding device 1 is less than the length of the inner cavity of the pressing device 2, so as to avoid the handle 12 touching the end face of the pressing device 2 during pressing.

[0033] As an alternative embodiment, as Figure 1 and Figure 4 shown, the oil seal installation tooling further includes a force-bearing top block 5. The pressing device 2 is configured as a flexible elastic member. The force-bearing top block 5 is arranged at the end of the pressing device 2 away from the opening. The flexible elastic member can maintain flexibility while having elasticity. For example, the pressing device 2 is made of nylon, so that when pressing the oil seal 4, the force can be buffered and at the same time the oil seal 4 can be protected to prevent the pressing device 2 from damaging the oil seal 4. However, since the elastic member is flexible and not easily stressed, deformation occurs at the stressed end, so a rigid force-bearing top block 5 is provided for connecting and bearing force with the power device 3. A connecting hole is provided on the end face of the pressing device 2, and the force-bearing top block 5 is embedded in the connecting hole. For further reinforcement, gluing can also be carried out. In other embodiments, the pressing device 2 can also be rigid, in which case there is no need to provide a force-bearing top block 5. To prevent damage to the oil seal 4, a buffer pad can be provided at the end of the pressing device 2 in contact with the oil seal 4.

[0034] Optionally, as Figure 1 and Figure 4 shown, the power device 3 includes a pneumatic hammer 32 and a pressing head 31. A positioning hole 51 is provided at one end of the force-bearing top block 5 away from the opening. One end of the pressing head 31 is provided with a positioning pin 311 for inserting into the positioning hole 51 and a limiting plate 312 with a diameter larger than that of the positioning hole 51. The other end of the pressing head 31 is connected to the pneumatic hammer 32. The positioning pin 311 is inserted into the positioning hole 51, and the limiting plate 312 abuts against the outside of the positioning hole 51 to limit the pressing head 31. The pneumatic hammer 32, that is, a pickaxe, uses compressed air to push the piston to reciprocate, so that the pressing head 31 moves quickly, removes the original pickaxe head of the pickaxe, and installs the pressing head 31 of the present disclosure. The end of the pressing head 31 is adapted to the pickaxe. The movement range of the pickaxe is small. Using the pickaxe can make the force on the pressing device 2 more uniform and the oil seal 4 more properly installed. Of course, in other embodiments, the power device 3 can also be other devices that can hammer the pressing device 2, such as a manual hammer, etc.

[0035] Optionally, as Figure 1 and Figure 5 shown, an oil seal pressing hole 61 is provided on the crankshaft 6. The outer diameter of the end of the pressing device 2 with an opening is larger than the diameter of the oil seal pressing hole 61, and an annular protrusion 21 protruding from the end wall is provided on the inner ring of this end. The width and diameter of the annular protrusion 21 are the same as those of the oil seal 4. The oil seal 4 is installed in the oil seal pressing hole 61, and the outer ring of the pressing device 2 is pressed on the outer cylinder plane of the oil seal pressing hole 61 for limiting. The annular protrusion 21 pushes the oil seal 4 into the oil seal pressing hole 61 to ensure the flatness of the oil seal 4 pressing.

[0036] As an optional implementation manner, the oil seal installation tooling is used to install the rear oil seal on the automobile engine, so that the engine does not need to be disassembled and the oil seal 4 can be directly installed, which is safe and fast.

[0037] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0038] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination manners.

[0039] In addition, any combination can be made between various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. An oil seal installation tooling for installing an oil seal, characterized in that The oil seal installation tooling includes: A guiding device, including a first end and a second end opposite to the first end, the first end being used for detachably connecting to the end of the crankshaft, the oil seal being sleeved on the guiding device and movable along the guiding device; A pressing device, having a cavity inside and an opening at one end of the cavity, the opening end of the pressing device being sleeved outside the guiding device and abutted against the oil seal; and A power device, abutted against the end of the pressing device away from the opening to push the pressing device to move along the guiding device.

2. The oil seal installation tooling according to claim 1, wherein The first end is provided with a magnet, and the guiding device is adsorbed on the end of the crankshaft through the magnet.

3. The oil seal installation tooling according to claim 2, characterized in that, The first end is provided with a mounting hole, the magnet is arranged in the mounting hole and fixed by a fixing bolt.

4. The oil seal installation tooling according to claim 1, characterized in that, The guiding device is configured as a cylindrical structure, and the outer circle of the second end is configured as a conical surface and the diameter of the conical surface gradually decreases from the first end to the second end.

5. The oil seal installation tooling according to claim 1, wherein, A rotor pressing hole protruding from the end face is provided at the center of the crankshaft, and a positioning groove for sleeving outside the rotor pressing hole is provided at the first end.

6. The oil seal installation tooling according to claim 1, characterized in that, A handle is provided at the second end.

7. The oil seal installation tooling according to claim 1, characterized in that, The oil seal installation tooling further includes a force-bearing top block, the pressing device is configured as a flexible elastic member, and the force-bearing top block is arranged at the end of the pressing device away from the opening.

8. The oil seal installation tooling according to claim 7, characterized in that, The power device includes a pneumatic hammer and a pressing head, a positioning hole is provided at the end of the force-bearing top block away from the opening, a positioning pin for inserting into the positioning hole and a limiting plate with a diameter larger than the positioning hole are provided at one end of the pressing head, and the other end of the pressing head is connected to the pneumatic hammer.

9. The oil seal installation tooling according to claim 7, characterized in that An oil seal pressing hole is provided on the crankshaft, the outer diameter of the end of the pressing device with the opening is larger than the diameter of the oil seal pressing hole, and a ring-shaped protrusion protruding from the end wall is provided on the inner circle of this end, and the width and diameter of the ring-shaped protrusion are the same as those of the oil seal.

10. The oil seal installation tooling according to claim 1, characterized in that, The oil seal installation tooling is used for installing the rear oil seal on an automobile engine.

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