CN219757178U - Bearing axial play detects instrument - Google Patents
Bearing axial play detects instrument Download PDFInfo
- Publication number
- CN219757178U CN219757178U CN202320275025.7U CN202320275025U CN219757178U CN 219757178 U CN219757178 U CN 219757178U CN 202320275025 U CN202320275025 U CN 202320275025U CN 219757178 U CN219757178 U CN 219757178U
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- bearing
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- support
- outer ring
- supporting
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- 238000001514 detection method Methods 0.000 claims abstract description 13
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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- Support Of The Bearing (AREA)
Abstract
The utility model discloses a bearing axial play detection tool, which comprises a base, a standard measurement load block, a support unit, an outer ring support ring and a measuring meter, wherein the base is used for installing a bearing to be detected of 234 series bidirectional thrust angular contact ball bearings; the base is provided with a mounting shaft, the diameter of the mounting shaft is smaller than the inner diameter of the bearing inner ring to be measured, a plurality of mounting grooves for mounting supporting units are formed in the positions, corresponding to the bearing inner ring to be measured, of the mounting shaft and the outer ring supporting ring, each supporting unit comprises an elastic piece and a supporting head connected with the elastic piece, the elastic piece is arranged in each mounting groove, and the supporting head is abutted to the inner ring or the outer ring of the bearing to be measured through the corresponding elastic piece so as to provide floating support. The utility model can detect the performance of 234 series bidirectional thrust angular contact ball bearings so as to ensure the performance of the 234 series bidirectional thrust angular contact ball bearings in actual working conditions.
Description
Technical Field
The utility model relates to a bearing detection tool, in particular to a bearing axial clearance detection tool.
Background
The lathe spindle is mainly provided with a double-row cylindrical roller bearing and 234 series bidirectional thrust angular contact ball bearings, wherein the bidirectional thrust angular contact ball bearings mainly bear axial load, and along with the development of the machine tool industry, the requirements on machining precision are continuously improved, and great challenges are also presented to the rigidity of the bearings, which directly influence the machining precision of the spindle.
The bearing clearance (axial pre-tightening amount) of 234 series bidirectional thrust angular contact ball bearings directly influences the rigidity of the bearings, the pre-tightening amount is too large, the bearings are serious in heating and easy to sinter; the axial rigidity of the bearing is insufficient due to the too small pre-tightening amount, so that the axial runout of the lathe spindle is too large, and the machining precision is reduced.
Therefore, performance detection of the product is an important means for ensuring that the bearing keeps high-performance work in actual working condition use. The problem is that there is no tool for detecting 234 series bidirectional thrust angular contact ball bearings, so there is a need for a device with targeted detection.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a bearing axial clearance detection tool which can detect the performance of 234 series bidirectional thrust angular contact ball bearings so as to ensure the performance of the 234 series bidirectional thrust angular contact ball bearings in actual working conditions.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bearing axial play detects instrument, includes the base that is used for installing 234 series two-way thrust angular contact ball bearing's bearing to be measured, is used for pushing down the standard measurement load piece of bearing inner race, is used for providing radial floating support's supporting element to bearing to be measured, is used for the outer lane support ring that overlaps to establish on the bearing outer race, is used for the measuring table that supports on the bearing inner race to be measured;
the bearing is characterized in that a mounting shaft is arranged on the base, the diameter of the mounting shaft is smaller than the inner diameter of the bearing inner ring to be measured, a plurality of mounting grooves for mounting a supporting unit are formed in the mounting shaft and the outer ring supporting ring corresponding to the position of the bearing inner ring to be measured, the supporting unit comprises an elastic piece arranged in the mounting groove and a supporting head connected with the elastic piece, and the supporting head is abutted to the inner ring or the outer ring of the bearing to be measured through the elastic piece so as to provide floating support.
As a further improvement of the utility model, the elastic piece adopts a spring, the mounting groove comprises a strip-shaped containing part and a spherical concave part, the position of the supporting head corresponding to the containing part is provided with a connecting column which is used for being penetrated and arranged in the containing part in a movable way, and the connecting column is connected with the spring so as to enable the supporting head to be abutted against the inner ring or the outer ring of the bearing to be tested through the elasticity of the spring.
As a further development of the utility model, the support head is spherical.
As a further improvement of the utility model, one end of the concave part corresponding to the opening is cylindrical, so that the supporting head can stretch and retract.
As a further improvement of the utility model, the standard measuring load block is pressed down to the inner ring of the bearing to be measured through a pad cover; the pad cover is provided with a convex edge at a position corresponding to the inner ring of the bearing to be detected, and the convex edge is abutted against the end face of the inner ring of the bearing to be detected.
As a further improvement of the utility model, an annular groove is arranged on the base corresponding to the outer ring supporting ring, and the groove is matched with the outer ring supporting ring for embedding the outer ring supporting ring.
The utility model has the beneficial effects that:
the 234 series bidirectional thrust angular contact ball bearing can be subjected to axial play detection in a targeted manner, so that the performance of products of the series bearings is more stable, the quality control of the output is improved, and the performance of the series bearings in actual working conditions is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic view of a supporting unit structure according to the present utility model;
reference numerals: 1. a base; 11. a mounting shaft; 2. standard measurement load blocks; 3. a supporting unit; 31. an elastic member; 32. a support head; 33. a connecting column; 4. an outer ring support ring; 5. a mounting groove; 51. a housing part; 52. a recessed portion; 6. a pad cover; 61. a convex edge; 7. a groove.
Detailed Description
The utility model will be further described in detail with reference to examples of embodiments shown in the drawings.
As shown with reference to figures 1-2,
the utility model provides a bearing axial play detects instrument, includes the base 1 of the bearing that awaits measuring that is used for installing 234 series two-way thrust angular contact ball bearing, is used for pushing down the standard measurement load piece 2 of bearing inner race, is used for providing radial floating support's support element 3 to the bearing that awaits measuring, is used for the outer lane support ring 4 that overlaps to establish on the bearing outer race, is used for abutting the measuring table on the bearing inner race that awaits measuring;
the base 1 is provided with a mounting shaft 11, the diameter of the mounting shaft 11 is smaller than the inner diameter of the bearing inner ring to be measured, a plurality of mounting grooves 5 for mounting the supporting units 3 are formed in the positions, corresponding to the bearing inner ring to be measured, of the mounting shaft 11 and the outer ring supporting ring 4, the supporting units 3 comprise elastic pieces 31 and supporting heads 32 connected with the elastic pieces 31, and the supporting heads 32 are abutted against the inner ring or the outer ring of the bearing to be measured through the elastic pieces 31 so as to provide floating support.
In the scheme, the inner ring and the outer ring of the bearing to be detected are supported in a floating support mode, interference cannot be caused to axial clearance detection, and detection accuracy is higher. The measuring meter can adopt a dial indicator, and the offset of the inner ring is detected by utilizing the abutting of the head of the dial indicator and the end face of the inner ring of the bearing to be measured.
During assembly, the bearing to be tested is sleeved on the mounting shaft 11, the supporting unit 3 supports the inner ring of the bearing to be tested, the outer ring supporting ring 4 is sleeved on the outer ring, and the supporting unit 3 on the outer ring supporting ring 4 is utilized to support the outer ring of the bearing to be tested in a floating mode.
Specifically, the supporting unit 3 used in the above-mentioned scheme provides elastic force by the elastic member 31, and the supporting head 32 is abutted against the inner ring and the outer ring of the bearing to be tested by the elastic force, so that the floating support can be realized by the elastic abutment.
The supporting scheme can detect 234 series bidirectional thrust angular contact ball bearings, the series bearing inner rings are provided with an upper inner ring layer and a lower inner ring layer, a bearing inner spacer ring is arranged between the inner rings, the inner rings and the bearing inner spacer ring form play, and the detection of the scheme is a tool for detecting and using the play. Based on this structure, the supporting unit 3 on the installation axle 11 can correspond to the upper and lower two-layer inner ring and all set up correspondingly, makes two-layer inner ring all have the floating support effect, lets the detection effect better. The number of the support units 3 is plural, and the support units are uniformly distributed on the mounting shaft 11 and the outer ring support ring 4 in the circumferential direction.
Preferably, the elastic member 31 is a spring, the mounting groove 5 includes an elongated accommodating portion 51 and a spherical recess portion 52, the supporting head 32 has a connecting post 33 corresponding to the accommodating portion 51 for being movably inserted into the accommodating portion 51, and the connecting post 33 is connected with the spring, so that the supporting head 32 abuts against an inner ring or an outer ring of the bearing to be tested by an elastic force of the spring.
The spring is more adapted to the elongated receiving portion 51, wherein the spring is preferably fixedly connected at both ends to the bottom of the mounting groove 5 and the connecting post 33, respectively, so that the supporting head 32 is prevented from being separated from the recess 52. The accommodating portion 51 has a better guiding function in cooperation with the connecting post 33, so that the movement of the supporting unit 3 is more stable.
To reduce axial friction, the support head 32 is preferably spherical.
Meanwhile, in order to make the supporting head 32 have a better moving space, the end of the recess 52 corresponding to the opening is cylindrical for the supporting head 32 to move telescopically. The length of this cylindricality can set up according to required adjustment volume, through the length setting of this cylindricality, can supply support head 32 to carry out stable flexible activity, has axial supporting role to support head 32, makes its state when the butt more stable.
Furthermore, the standard measuring load block 2 is preferably pressed down onto the inner ring of the bearing to be measured by a pad cover 6; the pad cover 6 is provided with a convex edge 61 at a position corresponding to the inner ring of the bearing to be detected, and the convex edge 61 is abutted against the end face of the inner ring of the bearing to be detected.
The pressure of the standard measurement load block 2 is more uniform by using the cushion cover 6, and the standard measurement load block 2 is convenient to install, and the cushion cover 6 can be arranged according to the figure, so that the standard measurement load block 2 can be arranged at fixed points.
In order to improve the stability of the floating support, an annular groove 7 is arranged on the base 1 corresponding to the outer ring support ring 4, and the groove 7 is matched with the outer ring support ring 4 so as to be embedded by the outer ring support ring 4.
The grooves 7 enable the outer ring support ring 4 to be positioned so that it does not shake and the effect of the floating support is affected.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (6)
1. The bearing axial clearance detection tool is characterized by comprising a base for installing a bearing to be detected of 234 series bidirectional thrust angular contact ball bearings, a standard measurement load block for pressing down an inner ring of the bearing, a support unit for providing radial floating support for the bearing to be detected, an outer ring support ring for being sleeved on an outer ring of the bearing, and a measurement meter for being abutted on an inner ring of the bearing to be detected;
the bearing is characterized in that a mounting shaft is arranged on the base, the diameter of the mounting shaft is smaller than the inner diameter of the bearing inner ring to be measured, a plurality of mounting grooves for mounting a supporting unit are formed in the mounting shaft and the outer ring supporting ring corresponding to the position of the bearing inner ring to be measured, the supporting unit comprises an elastic piece arranged in the mounting groove and a supporting head connected with the elastic piece, and the supporting head is abutted to the inner ring or the outer ring of the bearing to be measured through the elastic piece so as to provide floating support.
2. The tool for detecting axial play of bearings according to claim 1, wherein the elastic member is a spring, the mounting groove includes an elongated receiving portion and a spherical recess, the support head has a connecting post corresponding to the receiving portion for being movably inserted into the receiving portion, and the connecting post is connected to the spring so as to allow the support head to abut against an inner ring or an outer ring of the bearing to be detected by an elastic force of the spring.
3. The bearing axial play detection tool of claim 2, wherein the support head is spherical.
4. The tool according to claim 2, wherein the recess is cylindrical at one end corresponding to the opening for telescopic movement of the support head.
5. The tool for detecting axial play of bearings according to claim 1 or 2 or 3 or 4, wherein the standard measuring load block is pressed down onto the inner race of the bearing to be measured by a pad cover; the pad cover is provided with a convex edge at a position corresponding to the inner ring of the bearing to be detected, and the convex edge is abutted against the end face of the inner ring of the bearing to be detected.
6. The tool for detecting axial play of bearings according to claim 1, 2, 3 or 4, wherein an annular groove is provided on the base at a position corresponding to the outer ring support ring, and the groove is adapted to the outer ring support ring for the outer ring support ring to be inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320275025.7U CN219757178U (en) | 2023-02-14 | 2023-02-14 | Bearing axial play detects instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320275025.7U CN219757178U (en) | 2023-02-14 | 2023-02-14 | Bearing axial play detects instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219757178U true CN219757178U (en) | 2023-09-26 |
Family
ID=88078113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320275025.7U Active CN219757178U (en) | 2023-02-14 | 2023-02-14 | Bearing axial play detects instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219757178U (en) |
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2023
- 2023-02-14 CN CN202320275025.7U patent/CN219757178U/en active Active
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