CN203062709U

CN203062709U - Steel jacket pulling-out device

Info

Publication number: CN203062709U
Application number: CN 201220722877
Authority: CN
Inventors: 刘洋; 胡须巧; 张星勤; 刘岩峰; 陈金瑞; 鲁军; 姜翠翠; 梁丹
Original assignee: AVIC Huiyang Aviation Propeller Co Ltd
Current assignee: AVIC Huiyang Aviation Propeller Co Ltd
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2013-07-17
Anticipated expiration: 2022-12-25

Abstract

The utility model discloses a steel jacket pulling-out device which is composed of a spring expansion head, a screw rod conical head, a fastening nut, a sleeve and a tripping-out nut through assembling. The screw rod conical head is arranged in the spring expansion head through the fastening nut, then is arranged in the sleeve through the tripping-out nut, and assembly of the steel jacket pulling device is achieved. The spring expansion head is a protruding-type hollow circular tube, and a conical head arranged at the front end of the screw rod conical head is the same as an inner cavity hollow cone of the spring expansion head in shape, and is solid. The rear portion of the conical head is provided with a screw rod with threads, one end of the sleeve is fully open, and the other end of the sleeve is sealed. The sealed end of the sleeve is a cylinder body with a circular hole in the center. Due to the fact that the spring expansion head is tightly matched with an inserting steel jacket, the pulling-out rate of the inserted steel jacket is improved, and the damage rate of workpieces is reduced.

Description

A kind of sleeve puller

Technical field

The utility model relates to disposes the equipment that is bumped into the steel bushing use in a kind of machinery overhaul, particularly be bumped into a kind of sleeve puller that steel bushing is extracted for equipment.

Background technology

At present, need alleviate in the product of this body weight at aircraft, automobile etc., shell part adopts the aluminium alloy manufacturing more, in order to increase housing part installing hole intensity, generally in the hole, be bumped into steel bushing by interference fit, if trip out the steel bushing that is bumped in the housing, main by modes such as turning, milling, drilling, spark machined, the drawback of this mode, method is that the time that needs is long, and also may when destroying steel bushing, also destroy housing, novel sleeve puller can be implemented under the situation of not destroying housing, and steel bushing is taken out, and has improved processing efficient.

The utility model content

The purpose of this utility model is to provide a kind of can not destroy the shell body that engineering part embeds cover, can will embed a kind of sleeve puller that cover is extracted.

For achieving the above object, novel sleeve puller has utilized the feature that produces kneading power between spring expansion-head and the steel bushing dexterously, sleeve puller by spring expansion-head, screw rod conehead, go up jack panel, sleeve, trip out the nut assembling and constitute, jack panel is installed in the screw rod conehead in the spring expansion-head in the utilization, by tripping out nut the screw rod conehead is installed in the sleeve again, realizes the combination of sleeve puller; It is tubular that the profile of spring expansion-head is protruding formula open circles, and its inner chamber is conulite, and 4～8 spreading grooves are arranged on the tubular outer wall of spring expansion-head; The screw rod conehead is installed in the inner chamber of spring expansion-head, and the conehead of its leading section is identical with the inner chamber conulite shape of spring expansion-head, and is solid, and its conehead rear portion is screwed screw rod; Sleeve is that an end standard-sized sheet is put, other end sealing, and its blind end center has the cylinder of circular hole.

Every spreading groove on the tubular outer wall of spring expansion-head must be opened to the end of protruding seat from the top of tubular outer wall.

The conehead length of screw rod conehead must be less than the inner chamber conulite length of spring expansion-head.

The center hole diameter of sleeve blind end must be greater than the screw diameter of screw rod conehead, and the circular hole size is freely passed through with screw rod and is advisable.

Because the spring expansion-head adopts and the type that closely cooperates that embeds steel bushing, has improved embedding the extracting rate of steel bushing, has reduced the breakage rate to workpiece.

Description of drawings

Fig. 1 sleeve puller structure cutaway view,

In the drawings, 1-spring expansion-head, 2-screw rod conehead, 3-go up jack panel, 4-sleeve, 5-trip out nut;

Fig. 2 sleeve puller spring expansion sleeve cutaway view,

In the drawings, 6-spreading groove;

Fig. 3 sleeve puller and workpiece sectional arrangement drawing,

In the drawings, 7-steel bushing, 8-workpiece.

The specific embodiment

Be described in further detail below in conjunction with the structure of accompanying drawing to sleeve puller:

As seen from Figure 1, sleeve puller by spring expansion-head 1, screw rod conehead 2, go up jack panel 3, sleeve 4, trip out nut 5 assemblings and constitute, the overall package mode of sleeve puller is: jack panel 3 is installed in screw rod conehead 2 in the spring expansion-head 1 in the utilization, by tripping out nut 5 screw rod conehead 2 is installed in the sleeve 4 again, realizes the combination of sleeve puller.

As seen from Figure 2, it is tubular that the profile of spring expansion-head 1 is protruding formula open circles, its inner chamber is conulite, the thickness of tubular outer wall begins thickness thinning gradually from protruding seat, tubular outer wall in spring expansion-head 1 has 4～8 spreading grooves 6, be used for the expansion of the tubular outer wall of 2 pairs of spring expansion-head 1 of realization screw rod conehead, what can determine according to the size of sleeve puller the quantity of spreading groove 6.

Screw rod conehead 2 is installed in the inner chamber of spring expansion-head 1, the conehead of its leading section is identical with the inner chamber conulite shape of spring expansion-head 1, and be solid, its conehead rear portion is screwed screw rod, and the conical surface tapering of the inner chamber conulite of spring expansion-head 1 must be consistent with the tapering of screw rod conehead 2; Sleeve 4 is that an end standard-sized sheet is put, other end sealing, and its blind end center has the cylinder of circular hole.

Every spreading groove 6 on the tubular outer wall of spring expansion-head 1 must be opened to the end of its protruding seat from the top of tubular outer wall, and the width of spreading groove 6 is between 0.5～1.5mm.

The conehead length of screw rod conehead 2 must be less than the inner chamber conulite length of spring expansion-head 1, and its length difference can be determined according to the sleeve puller of different model, generally between 10～20mm.

The center hole diameter of sleeve 4 blind ends must be greater than the screw diameter of screw rod conehead 2, and the circular hole size is freely passed through with screw rod and is advisable, generally between greater than 2～4mm.

When using this sleeve puller, screw jack panel 3, allow and produce kneading power between spring expansion-head 1 and the steel bushing 7, support by sleeve 4, rotation trips out nut 5, drives screw rod conehead 2 and rises, and rises thereby drive steel bushing, takes out from workpiece 8 fully until steel bushing 7.

This sleeve puller is provided with spring expansion-head and the screw rod conehead of one group of different size for the steel bushing of the different-diameter of choosing, to satisfy the needs of the steel bushing of choosing.

Claims

1. sleeve puller, it is characterized in that: sleeve puller by spring expansion-head (1), screw rod conehead (2), go up jack panel (3), sleeve (4), trip out nut (5) assembling and constitute, jack panel in the utilization (3) is installed in screw rod conehead (2) in the spring expansion-head (1), by tripping out nut (5) screw rod conehead (2) is installed in the sleeve (4) again, realizes the combination of sleeve puller; It is tubular that the profile of described spring expansion-head (1) is protruding formula open circles, and its inner chamber is conulite, and 4～8 spreading grooves (6) are arranged on the tubular outer wall of spring expansion-head (1); Described screw rod conehead (2) is installed in the inner chamber of spring expansion-head (1), and the conehead of its leading section is identical with the inner chamber conulite shape of spring expansion-head (1), and is solid, and its conehead rear portion is screwed screw rod; Described sleeve (4) is that an end standard-sized sheet is put, other end sealing, and its blind end center has the cylinder of circular hole.

2. sleeve puller according to claim 1 is characterized in that: every the spreading groove (6) on the tubular outer wall of described spring expansion-head (1) must be opened to the end of protruding seat from the top of tubular outer wall.

3. sleeve puller according to claim 1, it is characterized in that: the conehead length of described screw rod conehead (2) must be less than the inner chamber conulite length of spring expansion-head (1).

4. sleeve puller according to claim 1, it is characterized in that: the center hole diameter of described sleeve (4) blind end must be greater than the screw diameter of screw rod conehead (2), and the circular hole size is freely passed through with screw rod and is advisable.