CN202539911U

CN202539911U - Drawing device special for large keys and pins

Info

Publication number: CN202539911U
Application number: CN 201220001196
Authority: CN
Inventors: 李景园; 李志新; 安自强; 傅全宝; 刘海斌
Original assignee: Beijing Shougang Construction Group Co Ltd
Current assignee: Beijing Shougang Construction Group Co Ltd
Priority date: 2012-01-01
Filing date: 2012-01-01
Publication date: 2012-11-21
Anticipated expiration: 2022-01-01

Abstract

The utility model discloses a drawing device special for large keys and pins, belonging to the technical field of assembling and disassembling mechanical equipments. The device comprises a draw bar and a hammer, wherein a first support (3) and a second support (4) are arranged on the draw bar (1); a grommet (7) is arranged on the hammer; and a communicated sliding hole (9) is processed in the centre. The drawing device has the advantages of solving the problem that the common drawing method cannot be achieved because the key or pin has big size and magnitude of interference, and is convenient to operate; and an impact device is added on the basis of the common method for disassembling the keys and pins; With the adoption of the drawing device, the keys or pins are pulled out by impact force, and the disassembling ability for the keys or pins with big size and large magnitude of interference can be greatly increased.

Description

Large-scale key, the special-purpose draw-off gear of pin

Technical field

The utility model belongs to plant equipment dismounting technical field, particularly provides a kind of large-scale key, pin special-purpose draw-off gear, is useful in the field such as plant equipment the dismounting to large-scale key, pin.

Background technology

At present; In the engineering for the dismounting of some small-sized keys, pin; Usually adopt the easy frock of special-purpose pin removal, polygamy closes the jack pair key, pin is removed, and for some appearance and sizes are big, the magnitude of interference is bigger key, pin; Like the fascinate tangential keys etc. of secondary speed-reducing machine of steelmaking converter, often use above method to be difficult to realize.

Summary of the invention

The purpose of the utility model is to provide the special-purpose draw-off gear of a kind of large-scale key, pin, has solved because of key, the pin form factor is big, the magnitude of interference is bigger, and the problem that adopts common Hubbing method to realize, and be convenient to operation.

The utility model comprises pull bar, long-drawn-out hammer two parts; First bearing 3 and second bearing 4 are set on the pull bar; On the long-drawn-out hammer grommet 7 is set, offers the sliding mesopore of center processing UNICOM on the long-drawn-out hammer 2.

The described pull bar 1 of the utility model directly is welded on key or sells on 6 the termination, and assurance and key or pin extract direction out on same levelness and linearity, first bearing 3 and second bearing 4 are set on the pull bar 1, and the pull bar axial plane guarantees to lubricate well with long-drawn-out hammer hole.

On the described long-drawn-out hammer of the utility model grommet 7 is set, the bolt rope made of hemp supplies and manpower pulls so that lock is tied up, and the sliding mesopore inner face on the long-drawn-out hammer guarantees smoothness, and sliding mesopore 9 is a matched in clearance with pull bar 1, and should lubricate good.Long-drawn-out hammer 2 requires to contact evenly with second bearing, 4 faying faces.

The beneficial effect of the utility model:

General key or pin little for appearance and size, that the magnitude of interference is little are removed, drawing, use easy frock to cooperate jack etc. to carry out drawing usually.In recent years along with the introduction and the production of main equipment, for the connection of transmission mechanism, also more and more large-scale change; Therefore the assembling and the dismounting that keep away unavoidable large-scale key, pin etc., and the present common method for dismounting of utilization is difficult to satisfy the demand, the special-purpose draw-off gear of large-scale key or pin has solved a this difficult problem; It is on the basis of common eject key or pin method; Increased percussion mechanism, mainly leaned on impulsive force that key or pin are extracted, increased the dismounting speed and the quality of, the magnitude of interference big key big or pin greatly external form.

Be applicable to external form is big, the magnitude of interference is big key, pin dismounting project engineering.Key in the various construction projects or pin dismounting had excellent popularization value.

Description of drawings:

Be described further below in conjunction with the accompanying drawing specific embodiments of the invention.

Fig. 1 is the elevation of the utility model.Wherein, pull bar 1, long-drawn-out hammer 2, first bearing 3, second bearing 4, jack 5, key, pin 6.

Fig. 2 is the left view of Fig. 1.Wherein, pull bar 1, long-drawn-out hammer 2, first bearing 3, second bearing 4, jack 5, key or sell 6, grommet 7, the rope made of hemp 8.

Fig. 3 is the pull bar figure of the utility model.Wherein: pull bar 1, first bearing 3, second bearing 4.

Fig. 4 is the left view of Fig. 3.Wherein, pull bar 1, first bearing 3, second bearing 4.

Fig. 5 is the long-drawn-out hammer monomer figure of the utility model.Wherein, long-drawn-out hammer 2, grommet 7.

Fig. 6 is the left view of Fig. 5.Wherein, slide mesopore 9

The specific embodiment

The method for using of the utility model is:

When 1, using large-scale key, pin special use draw-off gear; At first pull bar is welded on the termination of key or pin and is positioned between first bearing 3 and the equipment with two jack, require jack to extrude certain pressure, the pressure that the both sides jack extrudes is identical; The hammer of will swinging then slides into the position of first bearing 3; Lean on manpower to pull two ropes made of hemp on the long-drawn-out hammer simultaneously, drive long-drawn-out hammer rapidly, long-drawn-out hammering blow second bearing 4 is extracted key or pin.

When 2, the special-purpose draw-off gear of large-scale key, pin is installed, must guarantee that pull bar and key or pin extraction direction are on same levelness and linearity.

Claims

1. a large-scale key, the special-purpose draw-off gear of pin is characterized in that, comprise pull bar, long-drawn-out hammer two parts; First bearing (3) and second bearing (4) are set on the pull bar (1); On the long-drawn-out hammer grommet (7) is set, and, the sliding mesopore (9) that the center processes UNICOM offered.

2. large-scale key according to claim 1, the special-purpose draw-off gear of pin, it is characterized in that: described pull bar (1) directly is welded on the termination of key or pin (6), and extracts direction out on same levelness and linearity with key or pin.

3. large-scale key according to claim 1, the special-purpose draw-off gear of pin is characterized in that: pull bar (1) is matched in clearance with sliding mesopore (9).