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Special withdrawal tool for automatic transmission oil seal

A technology for automatic transmission oil and disassembly tools, which is applied to manufacturing tools, hand-held tools, etc., can solve problems such as inconvenient operation, inability to guarantee assembly accuracy, and easy damage to oil seals.

Inactive Publication Date: 2012-03-07
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of pertinence and inconvenient operation of general-purpose tools, the oil seal is easily damaged when disassembled, resulting in the failure to guarantee the original assembly accuracy of the oil seal when reinstalling, which is likely to leave potential safety hazards

Method used

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  • Special withdrawal tool for automatic transmission oil seal
  • Special withdrawal tool for automatic transmission oil seal
  • Special withdrawal tool for automatic transmission oil seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] When working, remove the oil seal of the Toyota A540 automatic transmission according to the following steps: (1) Rotate the removal bolt 1 counterclockwise to make it move upwards, so as not to touch the oil pump shaft when the pin extends into the oil seal. (2) Squeeze the bottom of pin 5 inward, and when the distance between the pins is smaller than the diameter of the oil seal, extend the two pins into the inside of the oil seal. (3) The pins are released, and the two pins are opened outwards under the action of the spring 3 . Since the two pins are inside the oil seal, the pins will be in contact with the inside of the oil seal and pressed tightly after they are fully opened. There is a platform at the lower end of pin 5, and the platform is close to the surface of the oil seal, and the two will not be separated under the action of the spring force. (4) Rotate the removal nut 1 clockwise until the boss at the lower end of the removal nut 1 presses on the oil pump ...

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Abstract

A special withdrawal tool for an automatic transmission oil seal belongs to the technical field of special automobile tools, and particularly relates to a special tool for dismantling the automatic transmission oil seal of Toyota A540. The special withdrawal tool is formed by a dismantling bolt, a tensioning arm, a spring, a central part and a pin. The dismantling bolt is connected with the central part through trapezoid threads, so the oil seal is removed from an automatic transmission through the axial force which is provided by screw drive. A cylindrical boss is arranged at the lower end of the removed bolt; and a cylindrical hole is processes at the right side of the tensioning arm, the spring is installed in the cylindrical hole, and the pin on the spring side is tightly pressed by one end of the spring through the spring force. The special withdrawal tool can realize the undamaged dismantling of the automatic transmission oil seal of Toyota A540, and has the characteristics of simple structure, convenience in operation, safety, reliability, low cost and the like, and is also suitable to dismantle the similar automatic transmission oil seals.

Description

technical field [0001] The patent of the present invention belongs to the technical field related to special tools for automobiles, specifically a special tool for dismantling the oil seal of Toyota A540 automatic transmission. Background technique [0002] In recent years, the number of automobiles in China has increased rapidly. At the same time, the number of Toyota vehicles in my country has also shown a steady growth trend. Toyota cars usually use automatic transmissions produced by AW, of which the A540 automatic transmission is used in a large amount. The oil seal is an important sealing element of the A540 automatic transmission with high assembly precision. At the same time, the oil seal and the oil pump are assembled by interference fit, and there is a large axial force between the two. The removal of the oil seal must overcome the effect of the axial force, and it is difficult to disassemble without damage. At present, when dismantling the Toyota A540 automatic ...

Claims

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Application Information

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IPC IPC(8): B25B27/02
Inventor 范钦满隽成林赵钱沈金华
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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