CN217845145U - Automatic measuring device for axial clearance of rolling bearing - Google Patents
Automatic measuring device for axial clearance of rolling bearing Download PDFInfo
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- CN217845145U CN217845145U CN202222024584.9U CN202222024584U CN217845145U CN 217845145 U CN217845145 U CN 217845145U CN 202222024584 U CN202222024584 U CN 202222024584U CN 217845145 U CN217845145 U CN 217845145U
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Abstract
The utility model provides an automatic measuring device for axial play of a rolling bearing, which comprises a test bed, upright posts and an electric cylinder, wherein an upper lifting platform is arranged between the upright posts in a sliding manner and is provided with a displacement sensor; the test bench is provided with a fixed base and a detection assembly movably arranged in the fixed base, a bearing seat is coaxially arranged on the fixed base, the bearing seat is provided with a supporting part used for being matched with an outer ring support of a bearing to be detected, and the bearing seat is provided with an upper cover plate matched with the bearing seat to clamp and fix the outer ring of the bearing to be detected; the elastic component drives the detection component to axially load and move the bearing to be detected at the electric cylinder, so that elasticity or pulling force can be provided for the bearing to be detected, the axial clearance is detected in an electric mode, the instability of the original pneumatic mode is reduced, the fluctuation is reduced, and an operator does not need to operate the elastic component directly.
Description
Technical Field
The utility model relates to an automatic measuring device of antifriction bearing axial internal clearance.
Background
In the daily application process, the axial play and the axial rigidity of the rolling bearing have important influence on the practical use, especially in high-precision equipment. In order to ensure the bearing state in use, the axial clearance and the axial rigidity of the bearing need to be strictly controlled. If the parameters are abnormal, the damage of high-precision equipment is easily caused, and great economic loss is generated. Therefore, the axial clearance and the axial rigidity need to be strictly controlled and accurately measured.
In the actual detection process, a factory usually adopts pneumatic equipment to realize the detection of axial displacement and axial rigidity, the operation cannot fully liberate the manpower, the test load fluctuates due to the fluctuation of air pressure, and the indicating value stability is poor.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model provides an automatic measuring device of antifriction bearing axial internal clearance.
For realizing above-mentioned purpose, the utility model provides an automatic measuring device of antifriction bearing axial internal clearance, including test bench, fixed baseplate, electric jar, the test bench includes that two stands, slip set up two go up the elevating platform between the stand, it is provided with the displacement sensor who detects to the bearing that awaits measuring to go up the elevating platform, the fixed baseplate activity is provided with the detection subassembly that cooperation displacement sensor detected the axial internal clearance of the bearing that awaits measuring, the last coaxial bearing frame that is provided with of fixed baseplate, the bearing frame is provided with the supporting part that is used for the cooperation bearing outer lane that awaits measuring to support, the bearing frame is provided with its upper cover plate of pressing from both sides tight fixed bearing outer lane that awaits measuring of cooperation to the axial float of restriction bearing outer lane that awaits measuring, detection subassembly includes elastic component, elastic component can provide elasticity or pulling force to the bearing that awaits measuring at electric jar drive detection subassembly axial loading motion.
The beneficial effects of the utility model are that: the height adjustment of the upper lifting platform is carried out, so that when the displacement sensor is in a proper position, the height adjustment is stopped, the displacement sensor is adjusted to correspond to the detection assembly, the detection assembly is driven by the electric cylinder to uniformly rise and compress the elastic assembly until the detection assembly stops moving when reaching a set value of a scheme, and the value indicated by the displacement sensor is delta X1; the detection assembly is driven by an electric cylinder to uniformly descend and stretch the elastic assembly, the movement is stopped until the indication value of the detection assembly reaches the set value of the scheme, the indication value of the displacement sensor is delta X2, the absolute value of the difference value of the displacement sensor after two detections is the axial clearance of the bearing, the elastic assembly can enable the bearing to be detected to be stably stressed, the change of the compression force or the tension force is uniform, and the detection precision is improved; the supporting part arranged through the bearing seat is matched with the upper cover plate to clamp and support the bearing outer ring to be detected, so that the bearing outer ring to be detected is locked, the bearing inner ring to be detected can be pushed by the detection assembly to detect the axial movement of the bearing outer ring to be detected, and the detection stability and accuracy are improved. The utility model discloses have the practicality, detect the axial internal clearance of bearing through electronic mode, reduce the instability of original pneumatic system, make it stable change in the testing process, reduce undulant, and electronic mode can make its automatic measure, directly operate the one of which without operating personnel, time cost is reduced, measure by the electric cylinder drive, measure automatically, convenient operation, simple, accurate axial clearance who measures antifriction bearing, and can adapt to different bearings and measure.
Further, the detecting component includes the force sensor that cooperates the axial internal clearance of displacement sensor detection bearing that awaits measuring, is driven to carry out the dabber fixing base that detects to the bearing that awaits measuring, the dabber fixing base is connected with the dabber that is used for installing the bearing that awaits measuring, dabber installation bearing that awaits measuring makes its axial direction be located the sense terminal of displacement sensor lower extreme.
Through adopting above-mentioned technical scheme, peg graft bearing inner race that awaits measuring through dabber fixing base and dabber adaptation to make the dabber fixing base detect the axial internal clearance of bearing that awaits measuring under the promotion of determine module, and measure it, and the different bearing that awaits measuring of change is dismantled or installed through dabber fixing base and dabber conveniently, thereby improves measuring device's suitability and convenience.
Furthermore, the elastic assembly comprises a compression spring which is arranged in the fixed base and matched with the inner wall of the fixed base, and an extension spring which is arranged in a central hole of the compression spring, one end of the extension spring is connected with the mandrel fixed seat, the other end of the extension spring is provided with a threaded cap, the force sensor is in threaded connection with the threaded cap, the compression spring is clamped between the threaded cap and the mandrel fixed seat, and the compression spring is abutted against the upper end face of the threaded cap and the lower end face of the mandrel fixed seat under the upward pushing of the force sensor; the extension of dabber fixing base lower extreme is provided with the connecting rod, be provided with the guide block that direction of direction set up along force transducer direction of motion on the lateral wall of connecting rod, be provided with the direction lasso that has the waist type hole that length direction and guide block direction are unanimous between guide block and the extension spring, extension spring passes through the direction lasso slides and sets up on the guide block, the guide block is located waist type hole, extension spring produces the pulling force through the up-and-down slip spacing between waist type hole and the guide block under the downward pulling of force transducer.
By adopting the technical scheme, in the process that the electric cylinder loading force sensor rises, the edge of the threaded cap arranged on the force sensor is gradually contacted with the compression spring, the other side of the compression spring is abutted against the mandrel fixing seat in the lifting process, the compression spring generates elastic force in the lifting process, when the force sensor shows a value, the electric cylinder is shown to be contacted with the bearing inner ring through the compression spring and the mandrel fixing seat, at the moment, the measurement system is formed, the displacement sensor automatically resets to carry out axial clearance measurement of the bearing, in the compression process of the compression spring, the extension spring slides on the connecting rod through the matching of the guide block and the guide ferrule, so that acting force is not generated in the lifting process, resistance is not generated by compression, the factor of reducing the detection precision in the upward movement process of the force sensor is reduced, the detection stability and the detection precision are improved, the electric cylinder push rod is reduced at a uniform speed, after the electric cylinder push rod returns to the initial position, the compression spring is separated from the mandrel fixing seat and loses the action, and the extension spring and the guide block and the guide ferrule apply downward tension to the guide ferrule to carry out the axial clearance measurement.
Further, the one end that the dabber corresponds displacement sensor is provided with standard measurement platform, the up end of standard measurement platform levels and sets up and cooperates with displacement sensor's lower extreme and measure the axial play of the bearing that awaits measuring, standard measurement platform and dabber threaded connection to make standard measurement platform, dabber and the tight rigid connection of bearing inner race clamp that awaits measuring.
By adopting the technical scheme, the standard measuring table is in threaded connection with the mandrel, so that the standard measuring table, the mandrel and the bearing to be measured are rigidly connected, and the connecting position of the standard measuring table and the bearing to be measured cannot generate axial movement in the process of measuring the axial clearance, so that errors exist in the measuring result.
Furthermore, an upper support is arranged at the upper end of at least one of the stand columns, an adjusting threaded rod used for adjusting the vertical position of the upper lifting table is arranged between the upper support and the upper lifting table, the adjusting threaded rod is in threaded connection with the upper lifting table, one end of the adjusting threaded rod penetrates through the upper support, a boss is arranged at the end of the adjusting threaded rod, the diameter of the boss is larger than the aperture of a through hole formed in the upper support through the adjusting threaded rod, and a thrust bearing is arranged between the boss and the upper end face of the upper support.
Through adopting above-mentioned technical scheme, adjust the vertical position of going up the elevating platform through upper bracket and adjusting screw, rotatory screw thread adjusting rod carries out the altitude mixture control of going up the elevating platform, when being in suitable position to adjust the relative position between displacement sensor and the cooperation frock and measure the bearing that awaits measuring, adjusting screw rod's joint strength height and regulation are stable, and can not slide on vertical direction in the measurement process, can keep the relative position between boss and the upper bracket through boss and thrust bearing, make the adjusting process in only go up the elevating platform and reciprocate, simplify the accommodation process and conveniently adjust, and thrust bearing has stronger bearing capacity, can effectively support last elevating platform through the boss, and rotate adjusting screw when the thrust bearing assists its rotation regulation, reduce the resistance when rotating, conveniently adjust.
Furthermore, the ascending and descending platform is provided with locking threaded columns corresponding to the displacement sensors and the upright columns and used for locking the positions of the displacement sensors and the upright columns, and the displacement sensors are vertically arranged on the upper end face of the standard measuring platform.
Through adopting above-mentioned technical scheme, displacement sensor and the contact of standard measuring station up end prevent that displacement sensor from taking place to remove, and displacement sensor can not slide because of the cambered surface of contact position rather than the area of contact undersize production, cause and detect inefficacy.
Furthermore, the extension springs and the guide blocks are arranged in pairs and are respectively arranged on the side walls of the two opposite sides of the connecting rod, the guide blocks are spherical convex blocks, the guide ferrule is arranged between the spherical convex blocks and the connecting rod, the spherical convex blocks limit the horizontal separation of the guide ferrule, and one end parts of the two extension springs are respectively connected to the corresponding guide ferrules.
By adopting the technical scheme, one end parts of the two extension springs are respectively connected to the corresponding guide ferrules, the guide ferrules only move in the vertical direction through the spherical convex blocks, and the spherical convex blocks clamp the guide ferrules to prevent the guide ferrules from being separated from the spherical convex blocks and the extension springs.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the embodiment of the present invention showing the structure inside the fixing base;
fig. 3 is a schematic diagram of a partial explosion structure according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings: as shown in fig. 1-3, the automatic measuring device of antifriction bearing axial internal clearance, including test bench 1, fixed baseplate 5, electric cylinder 26, test bench 1 includes two stands 2, slides and sets up two rising platform 3 between the stand 2, it is provided with displacement sensor 4 that detects to the bearing that awaits measuring to go up elevating platform 3, fixed baseplate 5 activity is provided with the detection component 6 that cooperates displacement sensor 4 to detect the axial internal clearance of the bearing that awaits measuring, coaxial bearing frame 7 that is provided with on fixed baseplate 5, bearing frame 7 is provided with the supporting part 8 that is used for cooperating the bearing outer lane support that awaits measuring, bearing frame 7 is provided with its upper cover plate 9 that presss from both sides tight fixed bearing outer lane that awaits measuring of cooperation to the axial float of restriction bearing outer lane that awaits measuring, detection component 6 includes elastic component 10, elastic component 10 drives detection component 6 at electric cylinder 26 and can provide elasticity or pulling force to the bearing that awaits measuring to the axial loading motion.
The detection assembly 6 includes that the cooperation displacement sensor 4 detects the force sensor 11 of the axial internal clearance of bearing that awaits measuring, is driven and carries out the dabber fixing base 12 that detects to the bearing that awaits measuring, dabber fixing base 12 is connected with the dabber 13 that is used for installing the bearing that awaits measuring, dabber 13 installation bearing that awaits measuring makes its axial direction be located the sense terminal of displacement sensor 4 lower extreme.
The elastic assembly 10 comprises a compression spring 14 and an extension spring 15, wherein the compression spring 14 is arranged in the fixed base 5 and matched with the inner wall of the fixed base 5, the extension spring 15 is arranged in a central hole of the compression spring 14, one end of the extension spring 15 is connected with the mandrel fixed seat 12, the other end of the extension spring is provided with a threaded cap 16, the force sensor 11 is in threaded connection with the threaded cap 16, the compression spring 14 is clamped between the threaded cap 16 and the mandrel fixed seat 12, and the compression spring 14 is pushed upwards by the force sensor 11 to abut against the upper end face of the threaded cap 16 and the lower end face of the mandrel fixed seat 12; the lower end of the mandrel fixing seat 12 is provided with a connecting rod 17 in an extending manner, a guide block 18 with a guide direction arranged along the motion direction of the force sensor 11 is arranged on the side wall of the connecting rod 17, a guide ferrule 19 with a waist-shaped hole 20 with the length direction consistent with the guide direction of the guide block 18 is arranged between the guide block 18 and the extension spring 15, the extension spring 15 is arranged on the guide block 18 in a sliding manner through the guide ferrule 19, the guide block 18 is located in the waist-shaped hole 20, and the extension spring 15 generates a tensile force by means of up-and-down sliding limiting between the waist-shaped hole 20 and the guide block 18 under the downward pulling of the force sensor 11.
The one end that dabber 13 corresponds displacement sensor 4 is provided with standard measuring station 21, the up end of standard measuring station 21 sets up smoothly and cooperates with the lower extreme cooperation of displacement sensor 4 and measures the axial internal clearance of bearing that awaits measuring, standard measuring station 21 and dabber 13 threaded connection to make standard measuring station 21, dabber 13 press from both sides tight rigid connection with the bearing inner race that awaits measuring.
At least one of them stand 2 upper end is provided with upper bracket 22, be provided with the adjusting screw 23 that is used for adjusting 3 vertical position of elevating platform between upper bracket 22 and the rising elevating platform 3, adjusting screw 23 and 3 threaded connection of rising elevating platform, adjusting screw 23 one end is worn to establish on upper bracket 22 and this end is provided with boss 24, boss 24's diameter is greater than the through-hole aperture that adjusting screw wore to establish at upper bracket 22, be provided with thrust bearing 25 between boss 24 and the up end of upper bracket 22.
The upper lifting platform 3 is provided with locking threaded columns for locking the positions of the displacement sensor 4 and the upright post 2 corresponding to the displacement sensor 4 and the upright post 2, and the displacement sensor 4 is vertically arranged on the upper end face of the standard measuring platform 21.
The extension springs 15 and the guide blocks 18 are arranged in pairs and are respectively arranged on the side walls of two opposite sides of the connecting rod 17, the guide blocks 18 are spherical convex blocks, the guide ferrule 19 is arranged between the spherical convex blocks and the connecting rod 17, the spherical convex blocks limit the horizontal separation of the guide ferrule 19, and one end parts of the two extension springs 15 are respectively connected to the corresponding guide ferrules 19.
The locking nuts on the upright columns on the two sides are loosened, the thread adjusting rods are rotated to adjust the height of the upper lifting platform, when the upper lifting platform is in a proper position, the height adjustment is stopped, the locking nuts are used for fixing the upper lifting platform to prevent the upper lifting platform from sliding, the locking nuts at the position of the displacement sensor are loosened to adjust the height of the displacement sensor, the locking nuts corresponding to the displacement sensor are loosened to enable the displacement sensor to vertically abut against the flat position of the upper end face of the standard measuring platform 21, the locking nuts are locked after reading is generated, the displacement sensor can be effectively aligned to the axial position of the bearing to be measured, the alignment step is simplified, the positioning effect is achieved, and the displacement sensor is prevented from moving.
An axial clearance measuring step:
1. selecting matched tools such as a mandrel, a bearing seat, an upper cover plate and a standard measuring table according to the type of the bearing to be measured;
2. connecting and fastening the selected mandrel and the mandrel fixing table, and connecting and fastening the bearing seat and the fixing base;
3. placing a bearing to be tested on a mandrel, wherein an inner ring is matched with the mandrel, and an upper cover plate is installed and fastened after an outer ring of the bearing is matched with a bearing seat, so that the outer ring of the bearing is ensured to be in a locked state and cannot move;
4. fastening the standard measuring table and the mandrel in a threaded manner to ensure that the standard measuring table and the mandrel are in close contact with the bearing inner ring and are in a rigid state;
5. loosening locking nuts on the upright columns on the two sides, rotating the thread adjusting rods to adjust the height of the upper lifting platform, stopping height adjustment when the upper lifting platform is in a proper position, and locking the locking nuts to fix the upper lifting platform to prevent the upper lifting platform from sliding;
6. loosening a locking nut at the displacement sensor, adjusting the height of the sensor to enable the sensor to be in contact with the upper end face of the standard measuring table, and locking the locking nut after reading is generated to prevent the displacement sensor from moving;
7. starting a measuring program, and giving pulses to the electric cylinder to enable the lifting rod in the electric cylinder to rise uniformly;
8. the electric cylinder pushes the force sensor and the threaded cap to rise, and compresses the spring to push the mandrel fixing table and the mandrel to rise uniformly;
9. when the force sensor shows a value (the gravity generated by the upper tool system is corrected), the fact that the electric cylinder is in contact with the inner ring of the bearing is shown, a measuring system is formed, and at the moment, the displacement sensor is automatically reset;
10. the electric cylinder continues to rise, upward thrust is applied to the inner ring of the bearing, and the electric cylinder stops moving until the indication value of the force sensor reaches the set value of the scheme, and the indication value of the displacement sensor is delta X1;
11. the electric cylinder lifting rod is lowered at a uniform speed, after the electric cylinder lifting rod returns to an initial position, the compression spring loses the action, and the electric cylinder lifting rod is changed into an extension spring and a guide block which are matched with a guide ferrule to apply downward tension to the mandrel fixing table;
12. the electric cylinder continues to be lowered, downward pulling force is applied to the inner ring of the bearing, the electric cylinder stops moving until the indication value of the force sensor reaches the set value of the scheme, and the indication value of the displacement sensor is delta X2;
13. lifting the electric cylinder lifting rod at a uniform speed, and after the electric cylinder lifting rod returns to an initial position, keeping the compression spring and the extension spring in a free state and losing the function;
14. at the moment, the axial clearance of the bearing is the variation quantity delta X = DeltaX 1-DeltaX 2 of the indication value of the sensor;
15. repeating the steps 3 to 14 to finish the measurement of other bearings of the same model;
16. if the measurement needs to be carried out on other models, the step 1 is started.
Axial stiffness measurement:
the method is consistent with the axial clearance measurement steps, but the relation between the load and the displacement needs to be recorded in real time, graph drawing and data storage are carried out through software, detection is started after a certain pre-tightening force is applied to the bearing generally, and positive and negative bidirectional measurement can be carried out. For different types of bearings, attention needs to be paid to whether the stress direction is reasonable or not, and the bearings are prevented from being damaged.
The above embodiment is only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an automatic measuring device of antifriction bearing axial internal clearance which characterized in that: including test bench, fixed baseplate, electric cylinder, the test bench includes that two stands, slip setting are two go up the elevating platform between the stand, it is provided with the displacement sensor who detects to the bearing that awaits measuring to go up the elevating platform, the fixed baseplate activity is provided with the determine module that cooperates the axial play of displacement sensor detection bearing that awaits measuring, the last coaxial bearing frame that is provided with of fixed baseplate, the bearing frame is provided with the supporting part that is used for cooperating the bearing outer lane support that awaits measuring, the bearing frame is provided with its upper cover plate that presss from both sides tight fixed bearing outer lane that awaits measuring of cooperation to the axial float of restriction bearing outer lane that awaits measuring, determine module is including elastic component, elastic component can provide elasticity or pulling force to the bearing that awaits measuring at electric cylinder drive determine module to the bearing axial loading motion that awaits measuring.
2. The automatic measuring device of the axial play of the rolling bearing according to claim 1, characterized in that: the detection assembly comprises a force sensor which is matched with a displacement sensor to detect the axial clearance of the bearing to be detected, and a mandrel fixing seat which is driven to detect the bearing to be detected, wherein the mandrel fixing seat is connected with a mandrel used for installing the bearing to be detected, and the mandrel is provided with a detection end, the axial direction of which is located at the lower end of the displacement sensor, of the bearing to be detected.
3. The automatic measuring device of the axial play of the rolling bearing according to claim 2, characterized in that: the elastic assembly comprises a compression spring and an extension spring, the compression spring is arranged in the fixed base and matched with the inner wall of the fixed base, the extension spring is arranged in a central hole of the compression spring, one end of the extension spring is connected with the mandrel fixed seat, the other end of the extension spring is provided with a threaded cap, the force sensor is in threaded connection with the threaded cap, the compression spring is clamped between the threaded cap and the mandrel fixed seat, and the compression spring is abutted against the upper end face of the threaded cap and the lower end face of the mandrel fixed seat under the upward pushing of the force sensor; the lower end of the mandrel fixing seat is provided with a connecting rod in an extending mode, a guide block is arranged on the side wall of the connecting rod in a guide direction along the motion direction of the force sensor, a guide ferrule with a waist-shaped hole with the length direction consistent with the guide direction of the guide block is arranged between the guide block and the extension spring, the extension spring is arranged on the guide block in a sliding mode through the guide ferrule, the guide block is located in the waist-shaped hole, and the extension spring is pulled downwards by the force sensor to generate tension through the up-down sliding limit between the waist-shaped hole and the guide block.
4. The automatic measuring device of the axial play of the rolling bearing according to claim 3, characterized in that: the measuring device comprises a mandrel, a displacement sensor, a standard measuring table and a standard measuring table, wherein the end, corresponding to the displacement sensor, of the mandrel is provided with the standard measuring table, the upper end face of the standard measuring table is flatly arranged and is matched with the lower end of the displacement sensor to measure the axial clearance of a bearing to be measured, and the standard measuring table is in threaded connection with the mandrel so that the standard measuring table, the mandrel and the inner ring of the bearing to be measured are in clamping rigid connection.
5. The automatic measuring device of the axial play of the rolling bearing according to claim 1, characterized in that: at least one of them stand upper end is provided with the upper bracket, be provided with the adjusting threaded rod that is used for adjusting the vertical position of last elevating platform between upper bracket and the rising elevating platform, adjusting threaded rod and rising elevating platform threaded connection, adjusting threaded rod one end is worn to establish on the upper bracket and this end is provided with the boss, the diameter of boss is greater than the through-hole aperture that adjusting threaded rod wore to establish at the upper bracket, be provided with thrust bearing between the up end of boss and upper bracket.
6. Automatic measuring device of the axial play of rolling bearings according to claim 4, characterized in that: the lifting platform is provided with locking threaded columns corresponding to the displacement sensors and the stand columns and used for locking the positions of the displacement sensors and the stand columns, and the displacement sensors are vertically arranged on the upper end face of the standard measuring platform.
7. Automatic measuring device of the axial play of rolling bearings according to claim 3, characterized in that: the extension springs and the guide blocks are arranged in pairs and are respectively arranged on the side walls of two opposite sides of the connecting rod, the guide blocks are spherical convex blocks, the guide sleeve ring is arranged between the spherical convex blocks and the connecting rod, the spherical convex blocks limit the horizontal separation of the guide sleeve ring, and one end parts of the two extension springs are respectively connected to the corresponding guide sleeve rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222024584.9U CN217845145U (en) | 2022-07-29 | 2022-07-29 | Automatic measuring device for axial clearance of rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222024584.9U CN217845145U (en) | 2022-07-29 | 2022-07-29 | Automatic measuring device for axial clearance of rolling bearing |
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| Publication Number | Publication Date |
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| CN217845145U true CN217845145U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222024584.9U Active CN217845145U (en) | 2022-07-29 | 2022-07-29 | Automatic measuring device for axial clearance of rolling bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086802A (en) * | 2023-02-06 | 2023-05-09 | 绍兴市科技信息研究院 | Bearing detection device |
| CN117433474A (en) * | 2023-12-11 | 2024-01-23 | 常州市昌隆电机股份有限公司 | Motor axial clearance and shaft extension size detection device |
-
2022
- 2022-07-29 CN CN202222024584.9U patent/CN217845145U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086802A (en) * | 2023-02-06 | 2023-05-09 | 绍兴市科技信息研究院 | Bearing detection device |
| CN116086802B (en) * | 2023-02-06 | 2024-01-26 | 绍兴市科技信息研究院 | Bearing detection device |
| CN117433474A (en) * | 2023-12-11 | 2024-01-23 | 常州市昌隆电机股份有限公司 | Motor axial clearance and shaft extension size detection device |
| CN117433474B (en) * | 2023-12-11 | 2024-02-20 | 常州市昌隆电机股份有限公司 | Motor axial clearance and shaft extension size detection device |
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