CN202640287U

CN202640287U - Device for withdrawing bearing

Info

Publication number: CN202640287U
Application number: CN 201220252671
Authority: CN
Inventors: 吴永旭; 彭学斌; 姜娟; 张永泉
Original assignee: Shanghai East Pump Group Co Ltd
Current assignee: Shanghai Eastwell Energy-Saving Technology Co., Ltd.
Priority date: 2012-05-31
Filing date: 2012-05-31
Publication date: 2013-01-02
Anticipated expiration: 2022-05-31

Abstract

The utility model discloses a device for withdrawing a bearing. The device comprises a pull block and a screw, wherein the section of the pull block is provided with a conical hole; the screw comprises a cylinder, a cone and a screw rod which are connected in sequence; the cone and the conical hole of the pull block are in mutual matched connection; a through hole is formed in the end part of the screw rod; a gasket is arranged on the screw rod, and connected with the outer ring of a bearing; and the gasket is fastened by the nut on the screw rod; and the middle part of the gasket is hollowed, and the inner diameter of the gasket is more than the outer diameter of the outer ring of the bearing. When the device is used, the pull block is put in a sleeve hole, the screw passes through, the gasket is filled, the nut is screwed tightly, the outer ring of the bearing can be withdrawn out smoothly and taken out conveniently and quickly, and the sleeve is protected from damage. The device can be used for saving time and labor, is quick and convenient, and has strong use value.

Description

A kind of device that moves back bearing

Technical field

The utility model relates to a kind of device that moves back bearing.

Background technology

Bearing in use often places under repair or changes.Circular cone roller angular contact bearing shown in Figure 1, inner ring can separate with the outer ring.After inner ring took out, the outer ring was stayed in the sleeve, because bearing outer ring and sleeve are interference fits, sometimes cooperation is very tight, is difficult to take out, and through non-specific purpose tools more commonly used, such as taking-up bearing outer rings such as hammer, crowbars, often sleeve is made a mess of, and is wasted time and energy.

Design a kind of specific purpose tool and take out bearing outer ring, it is necessary to change traditional removing method.

The utility model content

The technical problems to be solved in the utility model provides a kind of device that moves back bearing, can make things convenient for to take out rapidly bearing outer ring, does not damage sleeve, and is time saving and energy saving, efficient and convenient, and very strong use value is arranged.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of device that moves back bearing comprises pulling block and screw, and described pulling block cross section is a taper hole, and described screw comprises successively cylinder, cone and the screw rod that connects, and described cone is connected the taper hole connection that cooperatively interacts with pulling block.

Preferably, described screw rod end is provided with a through hole.

Preferably, be provided with packing ring on the described screw rod, packing ring links to each other with bearing outer ring, and by being arranged at the fastening nuts packing ring on the screw rod.

Preferably, described packing ring middle part hollows out, and the internal diameter of packing ring is greater than the bearing outer ring external diameter.

By technique scheme, the beneficial effects of the utility model are:

Can make things convenient for and take out rapidly bearing outer ring, not damage sleeve, time saving and energy saving, efficient and convenient, very strong use value is arranged.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the bearing outer ring structural representation.

Fig. 2 is structural representation of the present utility model.

Fig. 3 is bolt structure figure of the present utility model.

Fig. 4 (a) is the sectional view of pulling block, and Fig. 4 (b) is the front view of pulling block.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

With reference to Fig. 2, a kind of device that moves back bearing comprises pulling block 3 and screw, and described pulling block 3 cross sections are a taper hole 10, and described screw comprises successively cylinder 4, cone 5 and the screw rod 6 that connects, and described cone 5 is connected taper hole 10 connection that cooperatively interacts with pulling block.

Preferably, described screw rod 6 ends are provided with a through hole 7.

Preferably, be provided with packing ring 8 on the described screw rod 6, packing ring 8 links to each other with bearing outer ring 2, and by being arranged at nut 9 clamping washers 8 on the screw rod 6.

Preferably, described packing ring 8 middle parts hollow out, and the internal diameter of packing ring 8 is greater than bearing outer ring 2 external diameters.

With reference to Fig. 3, screw is comprised of cylinder 4, cone 5 and screw rod 6 three parts.Cone 5 and pulling block internal taper hole cooperate, and the through hole 7 of screw rod 6 one ends can pass a spillikin in use, and screw and then rotates together when preventing that nut 9 from tightening.

With reference to Fig. 4, be a taper hole 10 in the middle of the

pulling block

3, and 5 cooperations of screw cone, elder generation's car becomes the shape of upper Fig. 4 (a) during making, then with three breach of metal saw processing, makes three of its one-tenth, shown in Fig. 4 (b).

During use, first pulling block 3 is put in the sleeve hole, then passed screw, pad upper gasket 8 screws nut 9, and bearing outer ring just can be hauled out smoothly.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. device that moves back bearing, it is characterized in that: comprise pulling block and screw, described pulling block cross section is a taper hole, and described screw comprises cylinder, cone and the screw rod that connects successively, and described cone is connected the taper hole connection that cooperatively interacts with pulling block.

2. a kind of device that moves back bearing according to claim 1, it is characterized in that: described screw rod end is provided with a through hole.

3. a kind of device that moves back bearing according to claim 1, it is characterized in that: be provided with packing ring on the described screw rod, packing ring links to each other with bearing outer ring, and by being arranged at the fastening nuts packing ring on the screw rod.

4. a kind of device that moves back bearing according to claim 3 is characterized in that: described packing ring middle part hollows out, and the internal diameter of packing ring is greater than the bearing outer ring external diameter.