CN212567233U - Rolling bearing radial clearance detection device - Google Patents
Rolling bearing radial clearance detection device Download PDFInfo
- Publication number
- CN212567233U CN212567233U CN202021723953.8U CN202021723953U CN212567233U CN 212567233 U CN212567233 U CN 212567233U CN 202021723953 U CN202021723953 U CN 202021723953U CN 212567233 U CN212567233 U CN 212567233U
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- bearing
- threaded rod
- fixed
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000005096 rolling process Methods 0.000 title claims description 51
- 230000000694 effects Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a antifriction bearing radial play detection device, include: the device comprises a bottom plate, a dial indicator, a bearing fixing mechanism and a bearing jacking mechanism; the bottom plate is vertically arranged, the dial indicator is fixed at the top of the bottom plate, the bearing jacking mechanism is arranged at the bottom of the bottom plate, the bearing fixing mechanism is arranged in the middle of the bottom plate, a sliding groove is formed in the bottom plate along the vertical direction, and the sliding groove penetrates through the centers of the bearing fixing mechanism and the bearing jacking mechanism and is on the same straight line with a measuring rod on the dial indicator; the bearing fixing mechanism includes: the first threaded rod, the fixing column and the fixing pressing plate are arranged on the base; the vertical fixing of first threaded rod is on the bottom plate, and the spout passes the center department of first threaded rod, and fixed column screw thread sets up on first threaded rod, and the one end of keeping away from first threaded rod at the fixed column is fixed to holding down. The device overcomes the problems that the detection precision of the play detection device in the prior art is poor, and the model change is complicated for the detection of bearings with different sizes, thereby seriously influencing the working efficiency.
Description
Technical Field
The utility model relates to a antifriction bearing detection device technical field specifically relates to a antifriction bearing radial play detection device.
Background
The bearing play is the clearance between the bearing rolling elements and the bearing inner and outer race shells. The bearing play refers to a movement amount when the bearing is not mounted on the shaft or the bearing housing, the inner ring or the outer ring is fixed, and then the non-fixed bearing play is moved in the radial direction or the axial direction. According to the direction of movement, radial play and axial play can be divided. The magnitude of the play during operation (referred to as the operating play) has an influence on the performance of the bearing, such as rolling fatigue life, temperature rise, noise, and vibration.
The play detection device in the prior art has poor detection precision, and has complicated model change for the detection of bearings with different sizes, thereby seriously influencing the working efficiency.
Therefore, provide one kind and can carry out the accurate detection to the radial play of different bearings in the use, it is convenient to operate and remodel moreover, and the high antifriction bearing radial play detection device of work efficiency is the utility model discloses the problem that needs solve is urgent.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model aims at overcoming play detection device among the prior art's detection precision is not good, and to the detection of the bearing of equidimension not, it is all comparatively loaded down with trivial details to remodel, has seriously influenced work efficiency's problem to provide one kind and can carry out the accuracy to the radial play of different bearings and detect in the use, it is convenient to operate and remodel moreover, the high antifriction bearing radial play detection device of work efficiency.
In order to achieve the above object, the present invention provides a rolling bearing radial play detection device, the device includes: the device comprises a bottom plate, a dial indicator, a bearing fixing mechanism and a bearing jacking mechanism;
the bottom plate is vertically arranged, the dial indicator is fixed at the top of the bottom plate, the bearing jacking mechanism is arranged at the bottom of the bottom plate, the bearing fixing mechanism is arranged in the middle of the bottom plate, a sliding groove is arranged on the bottom plate along the vertical direction, and the sliding groove penetrates through the centers of the bearing fixing mechanism and the bearing jacking mechanism and is on the same straight line with a measuring rod on the dial indicator; wherein,
the bearing fixing mechanism includes: the first threaded rod, the fixing column and the fixing pressing plate are arranged on the base; the first threaded rod is vertically fixed on the bottom plate, the sliding groove penetrates through the center of the first threaded rod, the fixing column is arranged on the first threaded rod in a threaded manner, and the fixing pressing plate is detachably fixed at one end, far away from the first threaded rod, of the fixing column;
the bearing jacking mechanism comprises: the device comprises a supporting seat, a first supporting plate, a second supporting plate and a driving unit; the supporting seat is arranged on the bottom plate, the first supporting plate and the second supporting plate are obliquely fixed at the upper end of the supporting seat, the first supporting plate and the second supporting plate are in axial symmetry with respect to the sliding groove, and the driving unit is fixed on the bottom plate and can drive the supporting seat to slide along the sliding groove; and permanent magnet blocks are respectively arranged on one sides of the first supporting plate and the second supporting plate, which face the first threaded rod.
Preferably, the outer side of the fixing column is wrapped with a rubber sleeve.
Preferably, a second threaded rod is arranged on the fixed pressing plate, a threaded groove matched with the second threaded rod is arranged on the fixed column, and the second threaded rod can be fixed in the threaded groove.
Preferably, one side of the fixed pressing plate facing the fixed column is provided with a plurality of rubber bulges.
Preferably, a permanent magnet layer is arranged on the fixing column and positioned on the inner side of the rubber sleeve.
Preferably, the driving unit includes: a hydraulic pump; the hydraulic pump is fixed on the bottom plate, a piston rod on the hydraulic pump is vertically arranged, the end part of the piston rod is fixed at the center of the lower end of the supporting seat, and the piston rod and the sliding groove are on the same straight line.
Preferably, the outside of rubber sleeve is provided with pressure sensor, still be provided with on the bottom plate with the display of pressure sensor electricity connection for show the pressure data that pressure sensor detected.
According to the above technical scheme, the utility model provides a antifriction bearing radial play detection device is when using beneficial effect does: selecting a matched fixing column according to the inner diameter of the rolling bearing to be measured, fixing the fixing column on the first threaded rod, sleeving the rolling bearing to be measured on the fixing column to achieve a fixed effect, secondarily fixing the rolling bearing to be measured from the side surface of the inner ring of the rolling bearing to be measured by using the fixing pressing plate, so that the inner ring is stably fixed, and driving the supporting seat to slide along the sliding groove to enable the first supporting plate and the second supporting plate to be connected with the outer side of the rolling bearing to be measured, so that the measurement operation is performed: the method comprises the steps of firstly driving a supporting seat to descend to enable the outer ring of the rolling bearing to be measured to descend to the maximum, then enabling the end portion of a measuring rod on a dial indicator to abut against the outer side of the rolling bearing to be measured to measure to obtain first data, then driving the supporting seat to ascend to enable the outer ring of the rolling bearing to be measured to ascend to the maximum, then enabling the end portion of the measuring rod on the dial indicator to abut against the outer side of the rolling bearing to be measured to measure to obtain second data, and obtaining the difference value of the first data and the second data as the radial clearance of the rolling bearing. The utility model discloses a device can carry out the accurate detection to the radial play of different bearings, and it is convenient to operate and remodel moreover, and work efficiency is high.
Other features and advantages of the present invention will be described in detail in the detailed description which follows; and the parts which are not involved in the utility model are all the same with the prior art or can be realized by adopting the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a rolling bearing radial play detection device provided in a preferred embodiment of the present invention;
fig. 2 is an assembly view of a first threaded rod and a base plate provided in a preferred embodiment of the present invention;
fig. 3 is an exploded view of a bearing fixing mechanism provided in a preferred embodiment of the present invention.
Description of the reference numerals
1 base plate 2 dial gauge
3 chute 4 first threaded rod
5 first support plate of rolling bearing 61 to be measured
62 second support plate 7 hydraulic pump
8 piston rod 9 fixing column
10 rubber sleeve 11 thread groove
12 second threaded rod 13 fixed pressing plate
14 support seat 15 permanent magnet block
17 permanent magnet layer 18 pressure sensor
19 display
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the terms of orientation such as "upper, lower, inner, outer" and the like included in the terms only represent the orientation of the terms in a conventional use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
As shown in fig. 1-3, the utility model provides a antifriction bearing radial play detection device, the device includes: the device comprises a bottom plate 1, a dial indicator 2, a bearing fixing mechanism and a bearing jacking mechanism;
the bottom plate 1 is vertically arranged, the dial indicator 2 is fixed at the top of the bottom plate 1, the bearing jacking mechanism is arranged at the bottom of the bottom plate 1, the bearing fixing mechanism is arranged in the middle of the bottom plate 1, a sliding groove 3 is arranged on the bottom plate 1 along the vertical direction, and the sliding groove 3 penetrates through the centers of the bearing fixing mechanism and the bearing jacking mechanism and is on the same straight line with a measuring rod on the dial indicator 2; wherein,
the bearing fixing mechanism includes: the first threaded rod 4, the fixing column 9 and the fixed pressing plate 13; the first threaded rod 4 is vertically fixed on the bottom plate 1, the chute 3 penetrates through the center of the first threaded rod 4, the fixing column 9 is arranged on the first threaded rod 4 in a threaded manner, and the fixed pressing plate 13 is detachably fixed at one end, far away from the first threaded rod 4, of the fixing column 9;
the bearing jacking mechanism comprises: a support base 14, a first support plate 61, a second support plate 62, and a driving unit; the supporting seat 14 is arranged on the bottom plate 1, the first supporting plate 61 and the second supporting plate 62 are obliquely fixed at the upper end of the supporting seat 14, the first supporting plate 61 and the second supporting plate 62 are axially symmetrical with respect to the chute 3, and the driving unit is fixed on the bottom plate 1 and can drive the supporting seat 14 to slide along the chute 3; permanent magnet blocks 15 are respectively arranged on one sides of the first supporting plate 61 and the second supporting plate 62 facing the first threaded rod 4.
In the above scheme, a matched fixing column 9 is selected according to the inner diameter of the rolling bearing to be measured, and then the fixing column is fixed on the first threaded rod 4, the rolling bearing to be measured is sleeved on the fixing column 9 to achieve a layer of fixing effect, the fixing pressing plate 13 is used for fixing the inner ring of the rolling bearing to be measured for the second time from the side surface of the inner ring, so that the inner ring is stably fixed, and the supporting seat 14 is driven to slide along the chute 3, so that the first supporting plate 61 and the second supporting plate 62 are connected with the outer side of the rolling bearing to be measured, and thus the measurement operation is performed: the method comprises the steps of firstly driving a supporting seat to descend to enable the outer ring of the rolling bearing to be measured to descend to the maximum, then enabling the end portion of a measuring rod on a dial indicator 2 to abut against the outer side of the rolling bearing to be measured to measure to obtain first data, then driving the supporting seat to ascend to enable the outer ring of the rolling bearing to be measured to ascend to the maximum, then enabling the end portion of the measuring rod on the dial indicator 2 to abut against the outer side of the rolling bearing to be measured to measure to obtain second data, and obtaining the difference value of the first data and the second data as the radial clearance of the rolling bearing.
It should be noted that: in order to ensure the accuracy of measurement and ensure the symmetry of the height, the sliding chute 3 is taken as a symmetry axis, the measuring rod on the dial indicator 2 and the sliding chute 3 are on the same straight line, the first threaded rod 4 is symmetrical with the sliding chute 3, and the central axis of the first threaded rod 4 is intersected and perpendicular with the sliding chute 3, so that the rolling bearing to be measured sleeved on the bearing fixing mechanism is also symmetrically arranged relative to the sliding chute 3, that is, the sliding chute 3 passes through the center of the rolling bearing to be measured, the first supporting plate 61 and the second supporting plate 62 are axially symmetrical relative to the sliding chute 3, and the supporting seat 14 is also symmetrical relative to the sliding chute 3. These symmetrical structural relationships are clearly obtained by means of fig. 1, which are all such as to guarantee the accuracy of the measurement of the dial indicator 2.
In a preferred embodiment of the present invention, the outer side of the fixing post 9 is wrapped with a rubber sleeve 10.
In the above scheme, the rubber sleeve 10 can increase the friction force between the rolling bearing 5 to be measured and the fixing column 9, so as to achieve a fixing effect, the matching fixing column 9 is selected according to the inner diameter of the inner ring of the rolling bearing 5 to be measured, and then the rubber sleeve 10 is sleeved on the fixing column 9, so that the sleeving stability can be improved, and the fixing effect is achieved.
In a preferred embodiment of the present invention, the fixed pressing plate 13 is provided with a second threaded rod 12, the fixed column 9 is provided with a threaded groove 11 matched with the second threaded rod 12, and the second threaded rod 12 can be fixed in the threaded groove 11.
In the above solution, the fixed pressing plate 13 is fixed on the fixed column 9 by the second threaded rod 12, and then the side surface of the inner ring of the rolling bearing 5 to be measured is fixed by the pressure of the fixed pressing plate 13, and the fixed pressing plate 13 is circular and has a diameter larger than the inner diameter of the inner ring, so that the fixed pressing plate can press the side surface of the inner ring, but is smaller than or equal to the outer diameter of the inner ring.
In a preferred embodiment of the present invention, the fixing pressing plate 13 is provided with a plurality of rubber protrusions toward one side of the fixing column 9.
In the above scheme, the rubber protrusions can improve the friction between the fixed pressing plate 13 and the side surface of the inner ring of the rolling bearing 5 to be measured, so as to achieve the fixing effect, protect the inner ring, and prevent the inner ring from being scratched.
In a preferred embodiment of the present invention, a permanent magnet layer 17 is disposed on the fixing column 9 and inside the rubber sleeve 10.
In the above scheme, the permanent magnet layer 17 can provide an adsorption force to the sleeved rolling bearing 5 to be measured, so that the rolling bearing 5 to be measured is better fixed on the fixing column 9, the stability is better, and the measurement precision is indirectly improved.
In a preferred embodiment of the present invention, the driving unit includes: a hydraulic pump 7; the hydraulic pump 7 is fixed on the bottom plate 1, a piston rod 8 on the hydraulic pump 7 is vertically arranged, the end part of the piston rod is fixed at the center of the lower end of the supporting seat 14, and the piston rod 8 and the sliding groove 3 are on the same straight line.
In the above solution, the arrangement position of the piston rod 8 ensures that the driving force to the supporting seat 14 is located at the center of the supporting seat 14, and ensures the stability of the supporting seat 14 in sliding.
In a preferred embodiment of the present invention, the outside of the rubber sleeve 10 is provided with a pressure sensor 18, and the bottom plate 1 is further provided with a display 19 electrically connected to the pressure sensor 18 for displaying the pressure data detected by the pressure sensor 18.
In the above scheme, because rubber sleeve 10's setting may appear supporting seat 14 is right the too big effect that leads to of the antifriction bearing 5 of volume of awaiting measuring rubber sleeve 10 warp to the problem that should measurement accuracy, so the utility model discloses in the outside of rubber sleeve 10 is provided with pressure sensor 18, the pressure data that pressure sensor 18 detected show through display 19, and the staff can know like this the size of the effort that volume of awaiting measuring antifriction bearing 5 received prevents that the too big or undersize of effort from influencing the problem of measurement accuracy and taking place. The electrical connection between the pressure sensor 18 and the display 19 can be obtained according to conventional technical means in the art, as long as the effect that the display 19 can display the detection result of the pressure sensor 18 is achieved, and details of the specific electrical connection principle are not described herein.
According to the above, the operating principle of the rolling bearing radial play detection device provided by the present invention is: firstly, selecting a proper fixing column 9 according to the inner diameter of an inner ring of a rolling bearing 5 to be measured, then fixing the fixing column 9 on the first threaded rod 4, then sleeving the rolling bearing 5 to be measured on the fixing column 9, improving the fixing effect by using a rubber sleeve 10 and a permanent magnet layer 7, then rotationally fixing a fixing pressing plate 13 at the end part of the fixing column 9, pressing the fixing pressing plate 13 on the side surface of the inner ring of the rolling bearing 5 to be measured, fixing the inner ring in two directions to ensure the fixing stability, then starting a hydraulic pump, driving a piston rod 8 to extend to enable the upper surfaces of a first supporting plate 61 and a second supporting plate 62 to be abutted against and adsorbed on the outer side of the bottom of the rolling bearing 5 to be measured, and then driving a supporting seat 14 to slide along a sliding chute 3 to enable the outer ring of the rolling bearing to be measured to be lowered to, then, the end part of the measuring rod on the dial indicator 2 is abutted against the outer side of the rolling bearing to be measured to obtain first data; and then driving the supporting seat to ascend, so that the outer ring of the rolling bearing to be measured ascends to the maximum limit, and then enabling the end part of the measuring rod on the dial indicator 2 to abut against the outer side of the rolling bearing to be measured to measure to obtain second data, wherein the difference value of the first data and the second data is the radial clearance of the rolling bearing.
To sum up, the utility model provides a antifriction bearing radial play detection device overcomes play detection device among the prior art's detection precision is not good, and to the detection of the not bearing of equidimension, it is all comparatively loaded down with trivial details to remodel, has seriously influenced work efficiency's problem.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (7)
1. A rolling bearing radial play detection device, characterized by comprising: the device comprises a bottom plate (1), a dial indicator (2), a bearing fixing mechanism and a bearing jacking mechanism;
the bottom plate (1) is vertically arranged, the dial indicator (2) is fixed at the top of the bottom plate (1), the bearing jacking mechanism is arranged at the bottom of the bottom plate (1), the bearing fixing mechanism is arranged in the middle of the bottom plate (1), a sliding chute (3) is arranged on the bottom plate (1) along the vertical direction, and the sliding chute (3) penetrates through the centers of the bearing fixing mechanism and the bearing jacking mechanism and is on the same straight line with a measuring rod on the dial indicator (2); wherein,
the bearing fixing mechanism includes: the first threaded rod (4), the fixing column (9) and the fixing pressing plate (13); the first threaded rod (4) is vertically fixed on the bottom plate (1), the sliding chute (3) penetrates through the center of the first threaded rod (4), the fixing column (9) is arranged on the first threaded rod (4) in a threaded manner, and the fixing pressing plate (13) is detachably fixed at one end, far away from the first threaded rod (4), of the fixing column (9);
the bearing jacking mechanism comprises: a support base (14), a first support plate (61), a second support plate (62) and a driving unit; the supporting seat (14) is arranged on the bottom plate (1), the first supporting plate (61) and the second supporting plate (62) are obliquely fixed at the upper end of the supporting seat (14), the first supporting plate (61) and the second supporting plate (62) are in axial symmetry with respect to the sliding chute (3), and the driving unit is fixed on the bottom plate (1) and can drive the supporting seat (14) to slide along the sliding chute (3); and permanent magnet blocks (15) are respectively arranged on one sides of the first supporting plate (61) and the second supporting plate (62) facing the first threaded rod (4).
2. Rolling bearing radial play detection device according to claim 1, characterized in that the outside of the fixing column (9) is wrapped with a rubber sleeve (10).
3. Rolling bearing radial play detection device according to claim 1, wherein a second threaded rod (12) is provided on the stationary platen (13), a threaded groove (11) cooperating with the second threaded rod (12) is provided on the stationary column (9), and the second threaded rod (12) is fixable in the threaded groove (11).
4. Rolling bearing radial play detection device according to claim 3, characterized in that the side of the fixed pressure plate (13) facing the fixed column (9) is provided with a plurality of rubber bumps.
5. Rolling bearing radial play detection device according to claim 2, characterized in that a permanent magnet layer (17) is provided on the fixing post (9) on the inside of the rubber sleeve (10).
6. The rolling bearing radial play detection device according to claim 1, wherein the drive unit includes: a hydraulic pump (7); the hydraulic pump (7) is fixed on the bottom plate (1), a piston rod (8) on the hydraulic pump (7) is vertically arranged, the end part of the piston rod is fixed at the center of the lower end of the supporting seat (14), and the piston rod (8) and the sliding groove (3) are on the same straight line.
7. Rolling bearing radial play detection device according to claim 5, wherein a pressure sensor (18) is arranged outside the rubber sleeve (10), and a display (19) electrically connected with the pressure sensor (18) is further arranged on the bottom plate (1) for displaying pressure data detected by the pressure sensor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021723953.8U CN212567233U (en) | 2020-08-18 | 2020-08-18 | Rolling bearing radial clearance detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021723953.8U CN212567233U (en) | 2020-08-18 | 2020-08-18 | Rolling bearing radial clearance detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212567233U true CN212567233U (en) | 2021-02-19 |
Family
ID=74627667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021723953.8U Active CN212567233U (en) | 2020-08-18 | 2020-08-18 | Rolling bearing radial clearance detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212567233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780646A (en) * | 2020-08-18 | 2020-10-16 | 安徽朝坤测试设备有限公司 | Rolling bearing radial clearance detection device |
-
2020
- 2020-08-18 CN CN202021723953.8U patent/CN212567233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780646A (en) * | 2020-08-18 | 2020-10-16 | 安徽朝坤测试设备有限公司 | Rolling bearing radial clearance detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111780646A (en) | Rolling bearing radial clearance detection device | |
| KR20050064834A (en) | Bearing clearance measuring device | |
| CN212567233U (en) | Rolling bearing radial clearance detection device | |
| CN215639365U (en) | Axial clearance detection device for double-row tapered roller bearing | |
| CN203274616U (en) | Device for detecting run-out of surface of flange of cylinder | |
| CN104330259B (en) | Device for detecting capsizing moment load bearing capacity of ball bearing | |
| CN217110767U (en) | Measuring device for radial bearing clearance | |
| CN214407245U (en) | Utensil is examined to gear hole ring groove and outer terminal surface linear distance | |
| CN211234269U (en) | Detection tool for drilling positioning surface of automobile straight bevel gear | |
| CN209027488U (en) | A kind of ball screw automatic detection device | |
| CN220670930U (en) | Vibration measuring instrument | |
| CN207487637U (en) | A kind of cold press measuring device | |
| CN207036027U (en) | A kind of checking fixture for parallelism | |
| CN217877506U (en) | Gauge for measuring form and position tolerance of front hydraulic cylinder housing assembly | |
| CN217930124U (en) | Bearing clearance tester | |
| CN216012061U (en) | Precision bearing detects uses device | |
| CN107796348A (en) | A kind of cold press measurement apparatus | |
| CN108931219B (en) | Automatic detection device for ball screw | |
| CN213021374U (en) | Four-point contact ball bearing axial clearance detection tool | |
| CN221077609U (en) | Piston cylinder inner wall roughness inspection device | |
| CN219757202U (en) | Coaxiality detector | |
| CN211346706U (en) | Accurate measuring device for hub bearing | |
| CN214537738U (en) | Parallelism checking fixture for inner gear ring of internal gear pump | |
| CN219347627U (en) | Workpiece straightness detection device | |
| CN216745865U (en) | Equipment for measuring bearing clearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |