CN217442467U

CN217442467U - Bearing axial clearance inspection frock

Info

Publication number: CN217442467U
Application number: CN202220525144.9U
Authority: CN
Inventors: 赵斌; 徐克强
Original assignee: Beijing Feng Rong Aviation Science & Technology Co ltd
Current assignee: Beijing Feng Rong Aviation Science & Technology Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-09-16
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a bearing axial clearance inspection frock that belongs to inspection measuring tool field. The main body of the bearing axial clearance inspection tool is a tool bottom plate; the bearing positioning rod is inserted into a step hole at the bottom of the tool bottom plate; the standard gauge block is directly placed on the bearing positioning rod without fixation; the bearing outer diameter standard block is fixed on the tool bottom plate through a standard screw; the inspection fixing sleeve is directly placed on the outer ring of the bearing and is not connected with the main body; the dial gauge head is a standard part, the front end of the dial gauge head penetrates into a central hole of the inspection fixing sleeve, and the two parts are connected together through a screw in the radial direction of the inspection fixing sleeve. The utility model discloses the axle clearance of inspection bearing that can be convenient has avoided the error that small size measurement appears easily, can improve measurement accuracy, guarantee measuring result's accuracy, and this bearing axle clearance inspection frock simple structure, convenient operation.

Description

Bearing axial clearance inspection frock

Technical Field

The utility model belongs to inspection measuring tool field, in particular to bearing axial clearance inspection frock.

Background

In the standard parts of aviation equipment, a large part of the standard parts are bearings, particularly, the bearings are more necessary to be used at positions of a shaft, an impeller and the like which rotate at a high speed, the bearings can be used for supporting a revolving body, meanwhile, the friction coefficient in the motion process can be reduced, and the revolving precision of the revolving body is ensured.

The working principle of the bearing is rolling friction, although all parts of the bearing are subjected to surface treatment, the hardness and the wear resistance are high, the wear condition is inevitable in the use process, at the moment, the clearance between an inner ring and an outer ring of the bearing is increased, the phenomena of eccentricity, high noise and the like can occur in the operation process, the conditions of deformation of a rotary part, damage of parts and the like can occur in more serious conditions, and in order to avoid the conditions, the wear condition of the bearing needs to be checked before the bearing is installed, so that the bearing axial clearance checking tool is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above need to provide a bearing axial clearance inspection tool; the bearing axial clearance inspection tool is characterized in that a tool bottom plate 1 is taken as a main body of the bearing axial clearance inspection tool; the bearing positioning rod 2 is inserted into a step hole 7 at the bottom of the tool bottom plate 1; the standard gauge block 3 is directly placed on the bearing positioning rod 2 without being fixed; the bearing outer diameter standard block 4 is fixed on the tool bottom plate 1 through a standard screw; the inspection fixing sleeve 5 is directly placed on the outer ring of the bearing and is not connected with the main body; the dial gauge head 6 is a standard part, the front end of the dial gauge head penetrates into a central hole of the inspection fixing sleeve 5, and the two parts are connected together through a radial screw of the inspection fixing sleeve 5.

The step hole 7 at the bottom of the tool bottom plate 1 is a step unthreaded hole and is in close sliding fit with the bearing positioning rod 2, and the bearing positioning rod slides up and down in the step hole.

The tool bottom plate 1 is provided with a blind hole 8, and the standard gauge block 3 is placed in the blind hole 8 to prevent loss.

The bearing outer diameter standard block 4 is fixed on the tool bottom plate 1 through a screw to prevent loss,

the beneficial effects of the utility model are that the axle clearance of inspection bearing that can be convenient, the error of small size measurement appearance has easily been avoided, and simultaneously, the amesdial head that will measure the use is together fixed with the measurement frock, can improve measurement accuracy, guarantee measuring result's accuracy, can avoid the unexpected damage of amesdial head again, amesdial head measurement contact not with bearing direct contact, convert through the standard gauge block, can avoid the bearing chamfer to measuring influence, improve measuring accuracy. The bearing axial clearance inspection tool is simple in structure and convenient to operate, and can greatly improve the precision and accuracy of bearing clearance inspection.

Drawings

Fig. 1 is a perspective view of a structure of a bearing axial clearance inspection tool.

Detailed Description

The utility model provides a bearing axial clearance inspection frock, explains below with the attached drawing. Fig. 1 is a perspective view of a bearing axial clearance inspection tool structure. The main body of the bearing axial clearance inspection tool is a tool bottom plate 1; the bearing positioning rod 2 is inserted into a step hole 7 at the bottom of the tool bottom plate 1; the standard gauge block 3 is directly placed on the bearing positioning rod 2 without being fixed; the bearing outer diameter standard block 4 is fixed on the tool bottom plate 1 through a standard screw; the inspection fixing sleeve 5 is directly placed on the outer ring of the bearing and is not connected with the main body; the dial gauge head 6 is a standard part, the front end of the dial gauge head penetrates into a central hole of the inspection fixing sleeve 5, and the two parts are connected together through a screw in the radial direction of the inspection fixing sleeve 5. The step hole 7 at the bottom of the tool bottom plate 1 is a step unthreaded hole and is in close sliding fit with the bearing positioning rod 2, and the bearing positioning rod slides up and down in the step hole. A blind hole 8 is formed in the upper surface of the tool bottom plate 1, and the standard gauge block 3 is placed in the blind hole 8 to prevent loss.

the working principle of the utility model is that firstly, the tool is placed on the table-board, the bearing positioning rod 2 is penetrated into the step hole 7 of the tool bottom plate 1, the bearing sleeve to be detected is sleeved on the cylinder of the bearing positioning rod 2, the bearing outer ring is tightly attached to the tool bottom plate 1, the standard gauge block 3 is placed above the bearing inner ring, concentric with the bearing, the inspection fixing sleeve 5 and the dial gauge head 6 are assembled and placed at the outer ring of the bearing together, the inner hole of the inspection fixing sleeve 5 is tightly matched with the outer ring of the bearing, the detection contact of the dial gauge head 6 is attached to the upper surface of the standard gauge block 3, the pointer degree of the dial indicator head 6 is adjusted to be 0 by checking the screw on the fixed sleeve 5, the dial indicator head 6 is fixed, the bearing positioning rod 2 is pushed from the bottom of the tool, thereby driving the bearing inner ring to move upwards, and reading the numerical value on the dial indicator head 6 at the moment, namely the clearance between the bearing inner ring and the bearing outer ring.

After the use is accomplished, will inspect fixed cover 5 and take off from the bearing outer lane, place on bearing external diameter standard block 4, take off standard gage block 3 and place in blind hole 8 on frock bottom plate 1, will be taken out by the detection bearing, will detect the frock and place in the specific position, prevent that spare part from colliding with or losing.

Claims

1. A bearing axial clearance inspection tool is characterized in that a main body of the bearing axial clearance inspection tool is a tool bottom plate (1); the bearing positioning rod (2) is inserted into a step hole (7) at the bottom of the tool bottom plate (1); the standard gauge block (3) is directly arranged on the bearing positioning rod (2) without being fixed; the bearing outer diameter standard block (4) is fixed on the tool bottom plate (1) through a standard screw; the inspection fixing sleeve (5) is directly placed on the outer ring of the bearing and is not connected with the main body; the dial gauge head (6) is a standard part, the front end of the dial gauge head penetrates into a central hole of the inspection fixing sleeve (5), and the two parts are connected together through a radial screw of the inspection fixing sleeve (5).

2. The bearing axial clearance inspection tool according to claim 1, wherein the stepped hole (7) at the bottom of the tool bottom plate (1) is a stepped unthreaded hole, and is closely and slidably matched with the bearing positioning rod (2), and the bearing positioning rod slides up and down in the stepped hole.

3. The bearing axial clearance inspection tool according to claim 1, wherein a blind hole (8) is formed in the tool bottom plate (1), and the standard gauge block (3) is placed in the blind hole (8) and prevented from being lost.

4. The bearing axial clearance inspection tool according to claim 1, wherein the bearing outer diameter standard block (4) is fixed on the tool bottom plate (1) through screws, and can be prevented from being lost.