CN208601438U

CN208601438U - A kind of device for disassembling bearing inside blind hole

Info

Publication number: CN208601438U
Application number: CN201821061624.4U
Authority: CN
Inventors: 刘保府
Original assignee: Anhui Guofeng Plastic Industry Co Ltd
Current assignee: Anhui Guofeng New Material Co.,Ltd.
Priority date: 2018-07-05
Filing date: 2018-07-05
Publication date: 2019-03-15
Anticipated expiration: 2028-07-05

Abstract

The utility model relates to a kind of devices for disassembling bearing inside blind hole, comprising: expansion sleeve, expanded core and mandril；The end of the expansion sleeve is equipped with bulge；The expansion sleeve covers in expanded core, the end of expanded core is the press section matched with the bulge, the head end of expanded core stretches out outside expansion sleeve and is equipped with nut by screw thread, and the inside of the expanded core is equipped with tapped through hole along head end to the end direction of expanded core；The mandril is connected through a screw thread through tapped through hole and with expanded core；It is reliable that the utility model has the advantages of simple structure, easy to operate, can effectively reduce the disassembly difficulty of bearing inside blind hole, avoids the case where disassembly damages workpiece and bearing generation.

Description

A kind of device for disassembling bearing inside blind hole

Technical field

The utility model belongs to equipment Repairing Technology field, especially a kind of device for disassembling bearing inside blind hole.

Background technique

The case where disassembly bearing is frequently encountered during maintenance of equipment, and the assembly of bearing usually has certain interference Amount is dismantled relatively elaborate.Especially when bearing is located among blind hole, it often can not be successfully with existing tool and remove axis It holds.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of dress for disassembling bearing inside blind hole It sets, the difficulty of disassembling bearing inside blind hole can be reduced.

To achieve the above object, the utility model uses following technical scheme:

A kind of device for disassembling bearing inside blind hole, comprising:

The end of one expansion sleeve, the expansion sleeve is equipped with bulge；

One expanded core, the expansion sleeve cover in expanded core, the end of expanded core be matched with the bulge squeeze Splenium, the head end of expanded core stretch out outside expansion sleeve and are equipped with nut by screw thread, and the inside of the expanded core is along expanded core Head end to end direction is equipped with tapped through hole；

One mandril, the mandril are connected through a screw thread through tapped through hole and with expanded core.

Further, the bulge includes four open slots opened up along the end tube wall of expansion sleeve, is opened described in four The end tube wall even partition of expansion sleeve is four expansion pieces by mouth slot.

Further, the end inner spout of the expansion sleeve is tapered.

The utility model has the beneficial effects that: when the utility model is used, the bulge of expansion sleeve is protruded into workpiece In the bearing of blind hole, tightens nut i.e. and the expanded core in expansion sleeve may make to squeeze to blind hole side, the press section of expanded core end Meeting extrusion expansion portion is expanded to the internal ring wall of bearing, locks bearing inner race；Then enter mandril to blind hole sidespin, the end of mandril with Workpiece contact, the internal thread through hole of mandril and expanded core are threadedly engaged, so that expanded core is along mandril counter motion, and then will expansion The bearing for putting on locking is taken out of outside blind hole together, to smoothly complete the disassembly of bearing.It is reliable that the utility model has the advantages of simple structure, It is easy to operate, it can effectively reduce the disassembly difficulty of bearing inside blind hole, avoid disassembly and damage is generated to workpiece and bearing It happens.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the main sectional view of expansion sleeve；

Fig. 3 is the right view of expansion sleeve；

Fig. 4 is the structural schematic diagram of expanded core；

In figure: 1- expansion sleeve, 2- expanded core, 21- press section, 3- mandril, 4- bulge, 41- open slot, 42- expansion piece, 5 nuts, 6- workpiece, 7- blind hole, 8- bearing.

Specific embodiment

The utility model is described further with reference to the accompanying drawing:

A kind of device for disassembling bearing inside blind hole shown in referring to Fig.1, comprising: expansion sleeve 1, expanded core 2 and top Bar 3.

The end of the expansion sleeve 1 is equipped with bulge 4.Referring to shown in Fig. 2 and Fig. 3, the bulge 4 in the present embodiment includes Four open slots 41 opened up along the end tube wall of expansion sleeve 1, open slot 41 described in four are equal by the end tube wall of expansion sleeve 1 It is even to be divided into four expansion pieces 42.Four expansion pieces 42 can uniformly be expanded, when by Inner extrusion power with bearing around 8 inner rings push against.

Meanwhile in order to more easily realize bulge 4 by compression swelling, the end inner spout of the expansion sleeve 1 is designed as Taper.

1 set of the expansion sleeve is in expanded core 2, and referring to shown in Fig. 4, the end of corresponding expanded core 2 is and the expansion The press section 21 that portion 4 matches, 21 same design of press section in the present embodiment are taper, the end inner spout with expansion sleeve 1 It matches.

The head end of expanded core 2 stretches out outside expansion sleeve 1 and is equipped with nut 5 by screw thread, and the inside of the expanded core 2 is along swollen The head end of expansion core 2 to end direction is equipped with tapped through hole 22.The mandril 3 through tapped through hole 22 and passes through spiral shell with expanded core 2 Line connection.

The operating method of the utility model is as follows:

The bulge 4 of expansion sleeve 1 is protruded into the bearing 8 in the blind hole 7 of workpiece 6, tightening nut 5 may make expansion sleeve Expanded core 2 in 1 is squeezed to 7 side of blind hole, and the internal ring wall of press section 21 meeting extrusion expansion portion 4 to the bearing 8 of 2 end of expanded core is swollen It is swollen, lock 8 inner ring of bearing；Then enter mandril 3 to 7 sidespin of blind hole, the end of mandril 3 is contacted with workpiece 6 to be resisted, and is revolved in mandril 3 During turning, mandril 3 and the internal thread through hole 22 of expanded core 2 are threadedly engaged, so that expanded core 2 is along 3 counter motion of mandril, into And take expanded core 2 outside blind hole 7 together together with the bearing 8 locked on expansion sleeve 1 out of, to smoothly complete the disassembly of bearing 8.

Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines In range.

Claims

1. a kind of device for disassembling bearing inside blind hole characterized by comprising

The end of one expansion sleeve, the expansion sleeve is equipped with bulge；

One expanded core, the expansion sleeve cover in expanded core, and the end of expanded core is the press section matched with the bulge, The head end of expanded core stretches out that expansion sleeve is outer and be equipped with nut by screw thread, the inside of the expanded core along expanded core head end extremely End direction is equipped with tapped through hole；

2. a kind of device for disassembling bearing inside blind hole according to claim 1, which is characterized in that the bulge packet Four open slots opened up along the end tube wall of expansion sleeve are included, open slot described in four uniformly divides the end tube wall of expansion sleeve It is divided into four expansion pieces.

3. a kind of device for disassembling bearing inside blind hole according to claim 1 or 2, which is characterized in that the expansion The end inner spout of set is tapered.