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Oil seal removal tools and usage methods

A technology for dismantling tools and oil seals. It is applied in the manufacture of tools and hand-held tools. It can solve problems such as scratches, damaged parts, and time-consuming and laborious disassembly of oil seals. It achieves the effects of protecting the working surface, uniform force, and improving work efficiency.

Active Publication Date: 2018-06-26
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in mechanical transmission, grease and lubricating oil need to be added between the rotating body and the non-rotating body to reduce wear, such as: bearings, bearing bushes, and rotating journals. In order to prevent oil leakage and external dust from entering the parts, between the two The seal oil seal is installed between the two parts. After the seal oil seal has been working for a period of time, due to wear and tear and loss of sealing performance, oil leakage and dust cannot be blocked, the oil seal needs to be replaced. In the past, there was no special tool for removing the oil seal. , screwdriver and other general tools, since there is no special tool, it takes time and effort to disassemble the oil seal, and often scratches and damages the parts

Method used

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  • Oil seal removal tools and usage methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 A special removal tool for oil seal

[0034] Such as figure 1 As shown, the oil seal removal tool is composed of adjusting nut 2, mandrel 3, push rod 4, compression spring I5, compression spring II6, positioning sleeve 7, limit screw 8, adjustment screw 9 and the removal device.

[0035] The adjusting nut 2 is installed on the mandrel 3 .

[0036] Described mandrel 3 is shaped on step hole and keyway 1.

[0037] Described push rod 4 is packed in the stepped hole of mandrel, and the front end of push rod 4 is made into conical part.

[0038] Described stage clip I5 is packed in the stepped hole, and is arranged between mandrel 3 and push rod 4.

[0039] The compression spring II6 is installed outside the mandrel 3, one end is connected with the adjusting nut 2, and the other end is connected with the positioning sleeve 7.

[0040] The positioning sleeve 7 is made into a step shaft with a through hole, which is set on the mandrel 3. A limit screw 8 is ins...

Embodiment 2

[0046] Embodiment 2 The method of using the special removal tool for oil seal

[0047] Using the special oil seal removal tool in Example 1, the method of removing the oil seal downward is as follows:

[0048] 1) Measure the depth of the oil seal to be disassembled into the workpiece;

[0049] 2) Adjust the adjusting screw and adjusting nut according to the measured size;

[0050] 3) Put the mandrel of the oil seal removal tool into the aperture of the oil seal to be removed, so that the front end of the shift fork just corresponds to the notch of the oil seal to be removed;

[0051] 4) In the initial state, under the action of compression spring I, one end of the push rod extends out of the mandrel, and the shift fork is retracted inward under the action of the coil spring. Downward displacement, the conical part of the front end of the push rod touches the shift fork, the shift fork overcomes the force of the coil spring, opens outwards and extends into the oil seal slot, ...

Embodiment 3

[0054] Embodiment 3 The method of using the special removal tool for oil seal

[0055] Using the special tool for removing the oil seal in Example 1, the method of pulling out the oil seal upwards is as follows:

[0056] 1) Measure the depth of the oil seal to be disassembled into the workpiece;

[0057] 2) Adjust the adjusting screw and adjusting nut according to the measured size;

[0058] 3) Put the mandrel of the special removal tool for the oil seal into the aperture of the oil seal, so that the front end of the shift fork just corresponds to the notch of the oil seal;

[0059] 4) In the initial state, under the action of the pressure spring I, one end of the push rod extends out of the mandrel, and the shift fork is in the state of retracting inward under the action of the coil spring, and an external force is applied to the push rod downward. Displacement, the conical part of the front end of the push rod touches the shift fork, and the shift fork overcomes the force ...

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Abstract

The invention relates to a special oil seal dismounting tool and an application method. An adjusting nut is mounted on a mandrel. A step hole and a key slot I are formed in the mandrel. A push rod is mounted in the step hole of the mandrel; and the front end of the push rod is set as a conical part. A pressure spring I is mounted in the step hole, and is arranged between the mandrel and the push rod. A pressure spring II is mounted out of the mandrel, one end is connected with the adjusting nut, and the other end is connected with a positioning sleeve. The positioning sleeve is set as a through hole step shaft, and coats the mandrel; a limiting screw is mounted on the side surface of the positioning sleeve; one end of the limiting screw is mounted in a key slot II of the push rod after penetrating through the key slot I of the mandrel; and three adjusting screws are uniformly distributed on the positioning sleeve. The dismounting device consists of a pin, a coil spring and a poking fork; the pin is mounted on the mandrel; one end of the poking fork is connected with the pin, and the other end is movably connected with an oil seal to be dismounted; and the poking fork is movably connected with the conical part of the push rod. The special oil seal dismounting tool can quickly and conveniently replace the oil seal without damaging parts.

Description

technical field [0001] The invention belongs to the field of special tools for machinery, and in particular relates to a dismantling tool for a seal in mechanical transmission and a method of use thereof, which is suitable for a workplace for dismantling an oil seal of a mechanical seal. Background technique [0002] At present, in mechanical transmission, grease and lubricating oil need to be added between the rotating body and the non-rotating body to reduce wear, such as: bearings, bearing bushes, and rotating journals. In order to prevent oil leakage and external dust from entering the parts, between the two The seal oil seal is installed between the two parts. After the seal oil seal has been working for a period of time, due to wear and tear and loss of sealing performance, oil leakage and dust cannot be blocked, the oil seal needs to be replaced. In the past, there was no special tool for removing the oil seal. , screwdriver and other general tools, since there is no ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B27/06
CPCB25B27/06
Inventor 宋宝炜林家国孙玉启张皓
Owner SHENYANG AIRCRAFT CORP
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