CN217904167U

CN217904167U - Built-in bearing part connected through hole inner shaft

Info

Publication number: CN217904167U
Application number: CN202222089815.4U
Authority: CN
Inventors: 余国辉; 赵宇; 童永祥; 黄瑞敏; 代笑林; 刘志超
Original assignee: Jiangxi Zhongfa Tianxin Aero Engine Technology Co ltd
Current assignee: Jiangxi Zhongfa Tianxin Aero Engine Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-11-25
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a built-in bearing part of shaft connection in clearing hole belongs to the bearing part field, and its technical scheme main points are, including bearing, part and sleeve, the bearing is including bearing outer ring, ball frame and bearing inner ring, the bearing inner ring divide into two semi-rings, two the semi-ring carries out detachable connection, the sleeve includes installation department and fixed part, the fixed part with the semi-ring offsets, the external diameter of fixed part is less than the internal diameter of ball frame. The bearing inner ring is not required to be in contact with the shaft in the hole during installation of the tool, the bearing can be quickly fixed and installed, the ball frame is prevented from falling, and the tool is very convenient to operate.

Description

Built-in bearing part connected through hole inner shaft

Technical Field

The utility model relates to a bearing part field specifically is a built-in bearing part of shaft connection in clearing hole.

Background

In the existing engine assembly, some parts are often matched with holes, the condition that a bearing in the part is matched with the inner shaft of the hole is needed, the bearing is assembled in the hole, because the gap between the inner ring of the bearing and the inner shaft of the hole is smaller, when the bearing is installed in the hole, the inner ring of the bearing is easily clamped by the inner shaft of the hole, the inner ring of the bearing can not block and fix a ball frame on an outer ring of the bearing, the ball frame is separated from the hole and falls into the hole, and the installation fails.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a through built-in bearing part of downthehole hub connection, need not to make bearing inner ring and downthehole axle contact during the installation, can fix fast and install the bearing, prevent that the ball frame from dropping, it is very convenient to operate.

The above technical purpose of the present invention can be achieved by the following technical solutions: including bearing, part and sleeve, the bearing is including bearing outer ring, ball frame and bearing inner ring, the bearing inner ring divide into two semi-rings, two the semi-ring carries out detachable connection, the sleeve includes installation department and fixed part, the fixed part with the semi-ring offsets, the external diameter of fixed part is less than the internal diameter of ball frame.

In some embodiments, the inner side of the bearing outer ring is provided with a groove.

In some embodiments, the outer annular surface of the fixation portion is concave.

In some embodiments, the ball cage includes a support ring and a ball mounted on the support ring.

In some embodiments, an outer diameter of the mounting portion is greater than an outer diameter of the fixing portion, and the outer diameter of the mounting portion is not less than an inner diameter of the ball cage.

In some embodiments, a bolt hole is formed in one end of the mounting portion, which is far away from the fixing portion.

To sum up, the utility model discloses following beneficial effect has:

the utility model discloses a telescopic installation department prevents that ball frame and bearing outer loop break away from with the restriction of ball frame on the bearing outer loop, avoids ball frame to drop when the installation, and telescopic internal diameter is greater than the internal diameter of semi-ring simultaneously, avoids with the shaft contact in the hole, can prevent that the sleeve from blocking and can't install smoothly and take out from when the installation, improves work efficiency, convenient operation.

Drawings

FIG. 1 is an assembled view of an internal bearing assembly connected by an internal shaft in a bore;

FIG. 2 is a partially assembled view of a built-in bearing component connected by an internal shaft in a bore;

FIG. 3 is a schematic view of a sleeve with built-in bearing components connected by an in-hole shaft;

FIG. 4 is a schematic view of a ball cage with built-in bearing components connected by an internal shaft through a bore;

FIG. 5 is a schematic view of a half ring of a built-in bearing component connected by an internal shaft through a bore;

FIG. 6 is a cross-sectional view of an operational state of the shaft connection through the bore.

In the figure: 1. a sleeve; 101. an installation part; 102. a fixed part; 2. a bearing outer ring; 3. a ball rack; 301. A support ring; 302. a ball; 4. a bearing inner ring; 401. and (5) semi-rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-5, a built-in bearing part connected through a hole internal shaft comprises a bearing, a part and a sleeve 1, wherein the bearing comprises a bearing outer ring 2, a ball frame 3 and a bearing inner ring 4, the bearing inner ring 4 is divided into two semi-rings 401, the two semi-rings 401 are detachably connected, the sleeve 1 comprises a mounting part 101 and a fixing part 102, the fixing part 102 abuts against the semi-rings 401, the outer diameter of the fixing part 102 is smaller than the inner diameter of the ball frame 3, the ball frame 3 comprises a support ring 301 and a ball 302 mounted on the support ring 301, and the ball 302 cannot pass through a hole in the direction far away from the center of the support ring. During installation, firstly, one semi-ring 401 is placed on a shaft of an installation hole where a part needs to be installed, then, the bearing outer ring 2 is installed on the part, then, the ball frame 3 is installed on the bearing outer ring 2, then, the sleeve 1 is sleeved into the part, the fixing portion 102 of the sleeve 1 is located at the center of the ball frame 3 and is in contact with the ball frame 3, the ball frame 3 is limited on the bearing outer ring 2, the ball 302 on the ball frame 3 is prevented from falling towards the center direction of the support ring 301, finally, the part, the bearing outer ring 2 and the ball frame 3 are placed into the hole through the sleeve 1, the bearing outer ring 2 and the ball frame 3 are installed on the hole inner shaft and are fixed with the semi-ring 401, the sleeve 1 is taken out, then, and the other semi-ring 401 is installed, so that installation of the bearing in the hole is completed. This kind of fixing tool puts into downthehole the installation with the bearing through sleeve 1, convenient operation, and the installation is quick, has reduced the assemble duration, and sleeve 1 does not contact with downthehole axle simultaneously, avoids being blocked and can't fix ball frame 3 and make it drop extremely by downthehole axle, has improved the installation effectiveness of bearing.

In some embodiments, the inner side of the bearing outer ring 2 is provided with a groove, when the ball cage 3 is mounted on the bearing outer ring 2, the outer surface of the ball 302 contacts with the groove, and the ball 302 can roll in the groove, so that the ball can be prevented from falling off when the bearing is assembled, and the position of the ball cage 3 can be fixed.

In some embodiments, the outer annular surface of the fixing portion 102 is a concave surface, and the arc surface can make the contact between the ball 302 and the sleeve 1 smoother, so as to avoid scratching the ball 302 when the ball is pulled out of the sleeve 1, and prolong the service life of the bearing.

In some embodiments, the outer diameter of the mounting portion 101 is larger than the outer diameter of the fixing portion 102, the outer diameter of the mounting portion 101 is not smaller than the inner diameter of the ball frame 3, when the ball 302 is blocked and fixed by the fixing portion 102, the mounting portion 101 can always fix the ball frame 3 at the position of the fixing portion 102, and therefore it is avoided that the ball frame 3 changes in position in a part to cause the ball 302 to fall off when the bearing is installed by the operation sleeve 1.

In some embodiments, the mounting portion 101 is provided with a bolt hole at an end away from the fixing portion 102, and the sleeve 1 is fixed on the part by using the bolt, so that the mounting portion 101 is always in contact with the ball frame 3 and limits the ball frame 3, thereby avoiding the position of the ball frame 3 from being deviated, and ensuring the success of mounting.

The specific embodiments are only for explaining the present invention, and it is not a limitation to the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present invention.

Claims

1. A built-in bearing component connected through an internal spindle, characterized in that: comprises a bearing, a part and a sleeve (1);

the bearing comprises a bearing outer ring (2), a ball frame (3) and a bearing inner ring (4), wherein the bearing inner ring (4) is divided into two semi-rings (401), and the two semi-rings (401) are detachably connected;

the sleeve (1) comprises an installation part (101) and a fixing part (102), the fixing part (102) is abutted to the semi-ring (401), and the outer diameter of the fixing part (102) is smaller than the inner diameter of the ball frame (3).

2. A built-in bearing part connected through an internal spindle according to claim 1, wherein: the inner side of the bearing outer ring (2) is provided with a groove.

3. A built-in bearing part connected through an internal spindle according to claim 1, wherein: the outer annular surface of the fixing part (102) is a concave surface.

4. A built-in bearing part connected through an internal spindle according to claim 1, wherein: the outer diameter of the mounting portion (101) is larger than that of the fixing portion (102), and the outer diameter of the mounting portion (101) is not smaller than the inner diameter of the ball frame (3).

5. A built-in bearing part connected through an internal spindle according to claim 1, wherein: and a bolt hole is formed in one end, far away from the fixing part (102), of the mounting part (101).