CN204868743U

CN204868743U - Dismounting device that tail apical axis held

Info

Publication number: CN204868743U
Application number: CN201520567946.6U
Authority: CN
Inventors: 李亚杰; 郑广建; 孙文岩; 郭伟; 邢德强
Original assignee: CNNC Tianjin Machinery Co Ltd
Current assignee: CNNC Tianjin Machinery Co Ltd
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2015-12-16
Anticipated expiration: 2025-07-31

Abstract

The utility model discloses a dismounting device that tail apical axis held, including the bracing piece of step shaft form, the bracing piece divide into thin shaft part and thick shaft part, is formed with the screw thread on the thin shaft part, and thin shaft part sets up the separation blade with the juncture of thick shaft part, and the separation blade is equallyd divide the triplicate cutting by the drum along the circumference and is formed, and separation blade one end outwards forms the arch, and fixed cover sets up in the separation blade, and the free end of thin shaft part passes the centre bore of gland, then the screw in nut, and the gland is formed with the circular backstop groove on block tail top along interior disc. The utility model discloses in the use, the bearing in the tail top can be dismantled safely, has overcome to use ordinary tail apical axis to hold dismounting device to cause the tail top whole condemned not enough easily, practiced thrift the cost of plant maintenance. The utility model has the advantages of simple structure, convenient to use.

Description

The provision for disengagement that a kind of tail apical axis holds

Technical field

The utility model belongs to a kind of provision for disengagement, is specifically related to the provision for disengagement that a kind of tail apical axis holds.

Background technology

In engineering, on slewing, for ensureing the steady rotation of workpiece, usually tail ejection device is set at the afterbody of workpiece, and inside, tail top is inlaid with bearing.

Due to the impact of environment, the bearing of inside, tail top is made usually to be attended by the foreign material such as glue, cause tail apical axis to hold easily to break down, and bearing and tail top inside groove are interference fit, common instrument is used to be difficult to carry out dismounting to it, now the tail top entirety of bearing fault can only be scrapped, thus cause the increase of rotating equipment maintenance cost.

Utility model content

The utility model proposes to overcome the shortcoming existed in prior art, its objective is the provision for disengagement providing a kind of tail apical axis to hold.

The utility model realizes by following technical scheme:

The provision for disengagement that a kind of tail apical axis holds, comprise the support bar of ladder shaft-like, support bar is divided into thin shaft part and thick shaft part, and thin shaft part is formed with screw thread, and the intersection of thin shaft part and thick shaft part arranges catch, catch is circumferentially divided equally three parts of cuttings by cylinder and is formed, catch one end outwards forms projection, and fixed cover is arranged in catch, and the free end of thin shaft part passes the centre bore of gland, then screw in nut, gland is formed with the circular backstop groove on engaging tail top along inner headed face.

The internal diameter of the external diameter > catch of described thick shaft part.

The internal diameter of described fixed cover is connected with the major diameter fit of thin shaft part.

The utility model of such design, utilize the screw thread that the thin shaft part of support bar is formed, catch, fixed cover are connected with thick shaft part, gland and nut make bearing take out smoothly from tail apical axis hole, ensure that the precision in tail apical axis hole is not damaged, and overcome and use common tail top bearing disassembling device not dismantle, cause the deficiency that tail top entirety is scrapped, catch fixed and flexible of the present utility model, the outer uniform force on tail top, support bar improves the interchangeability between all parts.

Accompanying drawing explanation

Fig. 1 is that the utility model holds with tail apical axis the front sectional view be connected;

Fig. 2 is the A portion enlarged drawing in Fig. 1.

In figure:

The thin shaft part of 1 support bar 1a

1b thick shaft part 2 catch

Protruding 3 fixed covers of 2a

4 gland 4a centre bores

4b circular backstop groove 5 nut

6 tail top 7 bearings

8 inner chambers.

Detailed description of the invention

With reference to the accompanying drawings and embodiment the provision for disengagement that a kind of tail apical axis of the present utility model holds is described in detail:

As shown in Fig. 1 ~ 2, the provision for disengagement that a kind of tail apical axis holds, comprise the support bar 1 of ladder shaft-like, support bar 1 is divided into thin shaft part 1a and thick shaft part 1b, thin shaft part 1a is formed with screw thread, the intersection of thin shaft part 1a and thick shaft part 1b arranges catch 2, catch 2 is circumferentially divided equally three parts of cuttings by cylinder and is formed, catch 2 one end outwards forms protruding 2a, fixed cover 3 is arranged in catch 2, the free end of thin shaft part 1a is through the centre bore 4a of gland 4, and then screw in nut 5, gland 4 is formed with the circular backstop groove 4b on engaging tail top 6 along inner headed face.

The internal diameter of the external diameter > catch 2 of described thick shaft part 1b.

The internal diameter of described fixed cover 3 is connected with the major diameter fit of thin shaft part 1a.

Using method of the present utility model is:

Support bar 1 one end along thick shaft part 1b is loaded from the rear end on tail top 6, three catch 2 load the inner chamber 8 of tail top 6 bearing 7 successively, the protruding 2a bottom catch 2 is made to be stuck in tail top 6 with in the gap of bearing 7, fixed cover 3 loads in catch 2 along the free end of thin shaft part 1a, then the centre bore 4a of free end through gland 4 of thin shaft part 1a is made, the circular backstop groove 4b of gland 4 is stuck in the outer end diameter on tail top 6, now screwed in by the free end of nut 5 along the thin shaft part 1a of support bar 1, bearing 7 slowly pulls out by rotating nut 5.

The utility model structure is simple, and easy to operate, utilize support bar and nut, by the bearing dismounting in tail top, the entirety that efficiently avoid tail top is scrapped, and has saved production cost.

Claims

1. the tail apical axis provision for disengagement of holding, it is characterized in that: the support bar (1) comprising ladder shaft-like, support bar (1) is divided into thin shaft part (1a) and thick shaft part (1b), thin shaft part (1a) is formed with screw thread, thin shaft part (1a) arranges catch (2) with the intersection of thick shaft part (1b), catch (2) is circumferentially divided equally three parts of cuttings by cylinder and is formed, catch (2) one end outwards forms projection (2a), fixed cover (3) is arranged in catch (2), the free end of thin shaft part (1a) passes the centre bore (4a) of gland (4), then nut (5) is screwed in, gland (4) is formed with the circular backstop groove (4b) of engaging tail top (6) along inner headed face.

2. the tail apical axis according to claim 1 provision for disengagement of holding, is characterized in that: the internal diameter of the external diameter > catch (2) of described thick shaft part (1b).

3. the tail apical axis according to claim 1 provision for disengagement of holding, is characterized in that: the internal diameter of described fixed cover (3) is connected with the major diameter fit of thin shaft part (1a).