CN201115948Y

CN201115948Y - Bearing packaged tool

Info

Publication number: CN201115948Y
Application number: CNU2007200418766U
Authority: CN
Inventors: 詹健
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2007-11-20
Filing date: 2007-11-20
Publication date: 2008-09-17
Anticipated expiration: 2017-11-20

Abstract

The utility model discloses a fast-installing tool for a bearing. The tool body is of a cylinder and both ends of the tool body are respectively provided with a closed end and an open end. The inside diameter of the open end is larger than the inside diameter of the inner ring of the bearing to be installed, and the outside diameter of the open end is smaller than the outside diameter of the inner ring of the bearing to be installed so that the force produced during the hammering can fully act on the inner ring of the bearing rather than damage the bearing. The tool body is made of copper or low-carbon steel material in that the soft metals fail to damage the bearing and produce scraps. The head face of the closed end is of a plane surface or a spherical surface. The fast-installing tool for a bearing has simple structure and is convenient to manufacture and bring into operation. When the tool is used for installing a bearing, no direct hammering is conducted to the bearing, thereby failing to deform the bearing and producing scraps.

Description

The fast holding tool of bearing

Technical field:

The utility model relates to a kind of erecting tools of bearing class part, relates in particular to a kind of fast holding tool of bearing that is used to install common bearing of motor.

Background technology:

At present, all kinds of bearings of motor are when repair and replacement, and the method that the maintenance personal installs adopts aluminium bar or copper rod to knock bearing more, but may have multiple repair quality hidden danger in the installation process.At first, because discontinuity causes axle journal burr, bruise mark to occur, more serious may cause the axle journal distortion in the process of knocking.Secondly, in the process of knocking, also might produce copper scale, in the bearing that drops, influence bearing working.Serious may reduce bearing service life.Once more, may cause the recessive distortion of bearing because frequent brute force is knocked, though in use do not break down immediately, can cause that operating noise is big, problems such as operating temperature height finally reduce its service life.

The utility model content:

For overcoming the defective of prior art, the utility model aims to provide the fast holding tool of a kind of bearing, adopts this instrument that bearing is installed, and can improve installation rate, also need not directly to knock bearing, can not make bearing deformation, produce chip etc.

The technical solution of the utility model is achieved in that

The fast holding tool of bearing, body of tool are the tube-shaped column body, and described body of tool two ends are respectively blind end and open end, and the internal diameter of described open end is greater than the internal diameter of bearing inner race to be installed, and the external diameter of open end is less than the external diameter of bearing inner race to be installed.

Described body of tool is made by copper or low-carbon steel material, because these soft metals can not produce chip knocking Shi Buhui injury bearing yet.

The end face of described blind end is the plane or is sphere shape.

Beneficial effect: the utility model is simple in structure, is convenient to make and implement, and when using this instrument that bearing is installed, need not directly to knock bearing, thereby can not make bearing deformation and produce chip etc.

Description of drawings:

Fig. 1 is the cross-sectional view of the utility model instrument.

Fig. 2 is that the A-A of Fig. 1 is to cutaway view.

Fig. 3 is the cross-sectional view of another embodiment of the utility model.

Number in the figure: 1, body of tool, 2, blind end, 3, the open end.

Below in conjunction with accompanying drawing and both the specific embodiment the utility model is described in further detail.

The specific embodiment:

Embodiment 1, and referring to Fig. 1, Fig. 2, the fast holding tool of the bearing of present embodiment two ends are respectively blind end 2 and open end 3, and the internal diameter of described open end 3 is greater than the internal diameter of bearing inner race to be installed, and the external diameter of open end is less than the external diameter of bearing inner race to be installed.So that all acting on the bearing inner race, the power of sending when knocking is unlikely to damage bearing itself.Body of tool is made by the soft metal and is formed, and for example copper or mild steel etc. can reduce the generation chip so as far as possible.When on axle bearing being installed, the wall thickness of body of tool open end 2 should be made the 2/3-4/5 that equals bearing inner race thickness and be the best; When bearing being installed in the hole, the external diameter of open end 2 is can be greatly a little but should be less than bearing outer diameter, so that body of tool 1 can extend in the hole.Which kind of situation no matter, the end face of open end 2 should be smooth, and the plane at end face place should be vertical with body of tool.During concrete enforcement, earlier bearing is placed on the axle, the erecting tools open end is placed on the axle again, evenly knock successively with the circumference of hand hammer along blind end, strength conducts on the bearing by body of tool, and shaft strength is even like this, also can not produce chip.This erecting tools can use simultaneously with forcing press, but should make the central lines of forcing press machine bar center line and this erecting tools and bearing, in case crooked pressure break bearing is installed.

Embodiment 2, and present embodiment is with embodiment 1, and different is that the end face of described blind end 2 is a sphere shape, in this case, when knocking with hand hammer, should knock the central point of spherical end surface.

Claims

1, the fast holding tool of bearing, body of tool is the tube-shaped column body, it is characterized in that, described body of tool (1) two ends are respectively blind end (2) and open end (3), the internal diameter of described open end (3) is greater than the internal diameter of bearing inner race to be installed, and the external diameter of open end is less than the external diameter of bearing inner race to be installed.

2, the fast holding tool of bearing according to claim 1 is characterized in that, described body of tool (1) is made by copper or low-carbon steel material.

3, the fast holding tool of bearing according to claim 1 is characterized in that, the end face of described blind end (2) is the plane.

4, the fast holding tool of bearing according to claim 1 is characterized in that, the end face of described blind end (2) is a sphere shape.