CN202867585U

CN202867585U - Bearing fixing device

Info

Publication number: CN202867585U
Application number: CN2012204710631U
Authority: CN
Inventors: 陈僴璀
Original assignee: CSR Chengdu Co Ltd
Current assignee: Chengdu CRRC Motor Co Ltd
Priority date: 2012-09-17
Filing date: 2012-09-17
Publication date: 2013-04-10
Anticipated expiration: 2022-09-17

Abstract

The utility model discloses a bearing fixing device. The bearing fixing device comprises an inner ferrule and an outer ferrule, wherein spigots are arranged on the inner ferrule and the outer ferrule; splits are also respectively arranged on the inner ferrule and the outer ferrule; the inner wall of the inner ferrule is of a cylindrical surface; the diameter of the inner wall of the inner ferrule is equal to that of the shaft or the inner wall of the inner ferrule is in tight fit with the shaft; the outer wall is a conical surface; a plurality of threaded holes which are distributed along the circumferential direction are formed on the inner ferrule at the same time; the direction of each threaded hole is parallel to the shaft; the inner wall of the outer ferrule is a conical surface; the conical degree of the inner wall of the outer ferrule is equal to that of the outer wall of the inner ferrule; the outer wall is a cylindrical surface; the diameter of the outer wall of the inner ferrule is equal to the inside diameter of the bearing or the outer wall of the inner ferrule is in tight fit with the bearing; threaded holes corresponding to the threaded holes in the inner ferrule are formed in the outer ferrule; and the small diameter of each threaded hole in the outer ferrule is greater than the large diameter of each threaded hole in the inner ferrule. The bearing fixing device is simply machined and manufactured; the bearing can be conveniently mounted and dismounted without a special tool; and the shaft and the bearing have less possibility of being damaged.

Description

A kind of bearing fixing device

Technical field

The utility model relates to a kind of bearing fixing device.

Background technique

Existing all kinds of machinery are when installing rolling bearing, if if bearing inner race adopts tighter cooperating with axle, often adopt when mounted following method:

1, adopts the method for hammering to pack into, be generally used for installing reduced size, cooperate not too tight bearing.

2, adopt special-purpose setting tool, carry out such as the method for hydraulic pressure or machinery.

3, hot jacket is installed, and is enclosed within on the axle behind the heating bearing.

All there is certain narrow limitation in above method.Method 1 couple of operator have higher requirements, and easily damages bearing or axle such as operate miss, and can only be used for the bearing of reduced size.Method 2 needs special tool, if bearing need to be keeped in repair or change to machinery in the place without special tool, dismounting or installation bearing be difficulty relatively.The energy consumption of method 3 is higher, and needed time is longer, and heating at that time can the permanent damages bearing, and the same with method 2, is not easy to maintenance and the bearing replacing of machinery.

The model utility content

The purpose of this utility model is: propose a kind of bearing fixing device, processing and fabricating is simple; Install, the dismounting bearing is convenient, need not adopt special tool; Not fragile axle and bearing.

The purpose of this utility model realizes by following technical proposals:

A kind of bearing fixing device, comprise inside race and outer collar, described inside and outside lasso all has seam, also be respectively equipped with a breach, the inwall of described inside race is a cylndrical surface, and diameter equates or drive fit with axle, and outer wall is a conical surface, be provided with simultaneously some tapped holes that distribute in the circumferential direction of the circle on the inside race, the tapped hole direction is parallel with axle; Described outer collar inwall is a conical surface, the tapering of tapering and inside race outer wall equates, outer wall is a cylndrical surface, diameter and bearing bore diameter equate or drive fit, outer collar is provided with the corresponding tapped hole of inside race upper screwed hole, and the path of the tapped hole on the outer collar is greater than the large footpath of inside race upper screwed hole.

As optimal way, described tapped hole is uniform in the circumferential direction of the circle.

This device using method: when bearing is installed, first inside race is placed on the axle, again bearing is put in the inside race periphery, at this moment can be gapped between bearing and the inside race.Be placed in this gap with outer collar, tapped hole is alignd with inside race with breach, usefulness and the supporting mounting screw of inside race tapped hole pass the tapped hole of outer collar, screw in the inside race.Tighten in turn successively each screw, inner and outer ring can rely on the conical surface that matches between them, swelling between axle and bearing, and when the seam of two lassos contacts with bearing inner race fully, installation.

During the dismounting bearing, remove and install first screw, usefulness and the supporting knockout screw of outer collar screw thread are worn the screw that is screwed into outer collar again, until withstand inside race.Be screwed in turn successively knockout screw, just outer collar can be taken out.Just can disassemble out bearing and inside race easily afterwards.

The beneficial effects of the utility model:

1, applicability is strong, can be used for the installation of each class bearing such as deep groove ball bearing, angular contact ball bearing, roller bearing;

2, easy processing adopts lathe, milling machine just can process;

3, install, dismantle easily, use common wrench can install, dismantle; Need not special tool;

4, be not easy to damage bearing and axle.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model embodiment inside race;

Fig. 2 is the plan view of the utility model embodiment inside race;

Fig. 3 is the B-B sectional view of Fig. 2;

Fig. 4 is the schematic perspective view of the utility model embodiment outer collar;

Fig. 5 is the plan view of the utility model embodiment outer collar;

Fig. 6 is the C-C sectional view of Fig. 5;

Fig. 7 is the utility model embodiment's use phase diagram;

Fig. 8 is the A-A sectional view of Fig. 7.

Embodiment

Below in conjunction with specific embodiments and the drawings the utility model is further described.

Shown in Fig. 1 to 8, a kind of bearing fixing device, comprise inside race 1 and outer collar 2, inside and outside lasso 1,2 all has seam, also is respectively equipped with a breach 5, and the inwall 11 of inside race 1 is a cylndrical surface, diameter equates or drive fit with axle 3, outer wall 12 is a conical surface, is provided with simultaneously some in the circumferential direction of the circle uniform tapped holes 13 on the inside race 1, and tapped hole 13 directions are parallel with axle 3; Outer collar 2 inwalls 21 are a conical surface, the tapering of tapering and inside race 1 outer wall 12 equates, outer wall 22 is a cylndrical surface, diameter and bearing 4 internal diameters equate or drive fit, outer collar 2 is provided with the corresponding tapped hole 23 of inside race 1 upper screwed hole 13, and the path of the tapped hole on the outer collar 2 23 is greater than the large footpath of inside race 1 upper screwed hole 13.

This device using method: when bearing is installed, first inside race 1 is placed on the axle 3, again bearing 4 is put in inside race 1 periphery, at this moment can be gapped between bearing 4 and the inside race 1.Be placed in this gap with outer collar 2, tapped hole 23 is alignd with inside race 1 with breach 5, usefulness and inside race 1 tapped hole 13 supporting mounting screws 6 pass the tapped hole 23 of outer collar 2, screw in the inside race 1.Tighten in turn successively each mounting screw 6, inner and outer ring 1,2 can rely on the conical surface that matches between them, swelling between axle 3 and bearing 4, and when the seam of two lassos contacts with bearing 4 inner rings fully, installation.

During the dismounting bearing, remove and install first screw 6, usefulness and outer collar 2 tapped holes 23 supporting knockout screw are worn the tapped hole 23 that is screwed into outer collar 2 again, until withstand inside race 1.Be screwed in turn successively knockout screw, just outer collar 2 can be taken out.Just can disassemble out afterwards bearing 4 and inside race 1 easily.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. bearing fixing device, it is characterized in that: comprise inside race and outer collar, described inside and outside lasso all has seam, also be respectively equipped with a breach, the inwall of described inside race is a cylndrical surface, and diameter equates or drive fit with axle, and outer wall is a conical surface, be provided with simultaneously some tapped holes that distribute in the circumferential direction of the circle on the inside race, the tapped hole direction is parallel with axle; Described outer collar inwall is a conical surface, the tapering of tapering and inside race outer wall equates, outer wall is a cylndrical surface, diameter and bearing bore diameter equate or drive fit, outer collar is provided with the corresponding tapped hole of inside race upper screwed hole, and the path of the tapped hole on the outer collar is greater than the large footpath of inside race upper screwed hole.

2. the bearing fixing device shown in claim 1, it is characterized in that: described tapped hole is uniform in the circumferential direction of the circle.