Inner screw taper pin dismounting tool

A technology for dismantling tools and internal threads, which is applied in the direction of manufacturing tools and hand-held tools, etc. It can solve the problems of small thread diameter, thread damage, unsuitable for disassembly of internal thread taper pins, etc.

Inactive Publication Date: 2008-01-09
陈焕春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some problems in this method: 1. According to the specific structure of the combination of the two parts, suitable bolts and backing plates and tools for turning the bolts should be equipped; 2. Because the thread length of the internally threaded tapered pin is limited, the thread diameter is relatively Small, the thread may be damaged during the disassembly process; 3. The disassembly time is slow, and it is not suitable for disassembly of large batches of internal thread taper pins

Method used

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  • Inner screw taper pin dismounting tool

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Embodiment Construction

[0011] With reference to the accompanying drawings, the slide hammer 2 is mounted on the small cylinder of the pin puller rod 1, which is a fit with a larger gap. Generally, the hole of the slide hammer 2 is 1 to 2 mm larger than the small cylinder of the pin puller rod 1. The upper end of the hole where the slide hammer 2 cooperates with the pin puller bar 1 small cylinder has a chamfer. For the convenience of operation, the large end cylinder of pin puller rod 1 and the surface of slide hammer 2 cylinders are knurled. Pull head 3 is tightened on the stud of pin puller bar 1 small cylinder end, and pull head 3 big ends are regular hexahedron, and its radial cross section is consistent with the radial cross section of the hexagonal nut that its internal thread size is identical. The small end of the puller 3 is the same stud as the thread of the internally threaded tapered pin 4 screw holes, and the large end cylinder of the pin puller rod 1 has a hole that is vertical and pas...

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Abstract

The internal thread taper pin dismantling tool consists of one pin drawing bar, one sliding weight mounted onto the pillar of the pin drawing bar via loose fit, and one pull head screwed up to the stud of the pin drawing bar. Through screwing up the pull head selected based on the internal thread taper pin to be dismantled to the pillar, holding the sliding weight in hand and pounding the pin drawing bar upwards with the sliding weight, the internal thread taper pin may be dismantled fast. The internal thread taper pin dismantling tool has the advantages of reliable performance and fast dismantling speed.

Description

technical field [0001] The invention relates to a hardware tool, in particular to a dismantling tool for a tapered pin with internal thread. Background technique [0002] Tapered pins are commonly used fasteners in mechanical manufacturing, and are generally used in conjunction with bolts for the connection of two parts. It is installed vertically in the taper hole hinged together after the joint surfaces of the two parts are close together, and usually requires 2 taper pins with a certain distance. Because the tapered pin and the tapered hole can achieve a clearance-free fit, the relative position of the two parts is uniquely fixed. After disassembly and reassembly, the fixed relative position of the two parts can be accurately restored through the taper pin. The disassembly of the tapered pin is generally to use a cylindrical tool to throw it out from its small end. For a tapered pin that is installed in an impassable tapered pin hole or cannot be thrown out from its sma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/08
Inventor 陈焕春吴淼东
Owner 陈焕春
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