CN2113132U

CN2113132U - Bearing puller

Info

Publication number: CN2113132U
Application number: CN 92210261
Authority: CN
Inventors: 贝殿秋
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-02-21
Filing date: 1992-02-21
Publication date: 1992-08-19

Abstract

The utility model discloses a bearing puller which is used in the mechanical industry, when the equipment is repaired and a bearing is dismantled. The puller is composed of a top rod (1) and a guide sleeve (2) which are matched through screw threads, a fixed disk (3) which is connected with an outer convex platform on the end of the guide sleeve (2), an opening clamping ring (4) at the edge of an inner wall of which a circle of clamping teeth are arranged and in the circumferential direction of an outer wall of which a groove or a convex platform is opened, and a screw bolt (5) which is matched with a screw hole on the fixed disk (3). The utility model has the advantages of simple structure, convenient operation, time saving and labour saving. In particular the utility model is used for dismantling, such as the crank shaft of a motorcycle engine with higher accuracy and a bearing fixed on a generator rotor. Intact shaft necks can be ensured.

Description

Bearing puller

The utility model is in a kind of mechanical industry, and the bearing drawbench that uses during maintenance of equipment dismounting bearing is specially adapted to the bearing removal on the motorcycle engine crankshaft.

Traditional dismounting bearing method is, force down with the bearing sled that the wedge shovel will be fixed on the axle journal, this method is inefficiency not only, and the axle journal higher to required precision, as engine crankshaft, the dismounting of fixing bearing on the generator amature, the capital produces fatal influence, the repair difficulty of axle journal is complicated, even whole axle is scrapped, and causes the big economic loss of tool.

Dismantle the inevitable wound that the method for bearing is brought to arbor in order to overcome tradition in dismantlement work; guarantee repair quality; reduce economic loss; the utility model will design a kind of bearing drawbench; in the dismounting bearing; make drawing device not with the axle journal direct collision, it is excellent to reach the protection axle journal, improves the purpose of work efficiency.

Concrete solution of the present utility model such as Figure of description 1, the structural representation of bearing drawbench.For structure of the present utility model is had further understanding, enumeration is as follows in conjunction with the accompanying drawings: among Fig. 1, push rod (1) cooperates with the guide pin bushing (2) of its outside by screw thread, one end of guide pin bushing (2) has an outside boss platform to be connected with the fixed disk (3) that its overcoat, the inside of fixed disk (3) is provided with the collar (4) of an opening, at inwall one edge of collar one circle card tooth is arranged, collar outer wall circumferencial direction has a groove or boss.In use expanding ring (4) is enclosed within the outside of bearing, the card tooth of expanding ring inwall just is being stuck on the chamfering of bearing outer ring, just be stuck in the outer wall trench of broken ring (4) after the bolt (5) that is complementary with it in the uniform screw more than three on the wall of fixed disk (3) passes screw and screws or the boss place, make collar bearing is embraced tightly, and then precession push rod (1), make the tip of push rod front end withstand on the central hole of axle journal, exert oneself this moment a little, just can smoothly bearing be left behind from axle journal.

The fixed disk of this bearing drawbench (3) can be according to the different supporting different size of making of bearing outside diameter with expanding ring (4), and what push rod (1) and guide pin bushing (2) can be independent is general with fixed disk.

The characteristics of bearing drawbench of the present utility model are, simple in structure, practical, the dismounting bearing is very convenient, saves time, laborsaving, can improve tens times of former dismantlement work efficient, and the assurance axle journal is excellent, particularly concerning the higher axle journal of required precision, with drawbench dismounting bearing of the present utility model, its practical significance and economic worth are very important.

Claims

1, a kind of bearing drawbench is characterized in that it is by the outer guide pin bushing (2) of push rod (1), the fixed disk (3) that guide pin bushing (2) is overlapping, and expanding ring (4) that is provided with in the fixed disk (3) and bolt (5) are formed.

2, a kind of bearing drawbench according to claim 1 is characterized in that being threaded engagement between push rod (1) and the guide pin bushing (2) that one end of guide pin bushing (2) has an outside boss platform.

3, a kind of bearing drawbench according to claim 1 is characterized in that uniform the screws that are complementary with bolt (5) more than three on the wall of fixed disk (3).

4, a kind of bearing drawbench according to claim 1 is characterized in that having a groove or boss on the outer wall circumference of expanding ring (4), has the card tooth on the ora terminalis of inwall.