CN216746777U - Eccentric bearing performance test bench - Google Patents
Eccentric bearing performance test bench Download PDFInfo
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- CN216746777U CN216746777U CN202122469881.XU CN202122469881U CN216746777U CN 216746777 U CN216746777 U CN 216746777U CN 202122469881 U CN202122469881 U CN 202122469881U CN 216746777 U CN216746777 U CN 216746777U
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Abstract
The utility model discloses an eccentric needle bearing performance test bench which comprises a base, wherein a fixed shaft is arranged on the base, the initial end of the fixed shaft is a fixed end used for fixing an external eccentric needle bearing to be tested, a driving piece used for driving the fixed shaft to axially rotate is arranged at the tail end of the fixed shaft, test seats are arranged on two sides of the fixed end, a test tube extends towards the direction of the fixed shaft from the two test seats, a through groove is formed in the test tube in a hollow mode along the length direction of the test tube, a loading shaft is arranged in the two through grooves in a sliding mode, one end of the loading shaft is a contact end used for penetrating through the corresponding through groove and being in clearance fit with the fixed end of the fixed shaft, the other end of the loading shaft is an induction end, and a sensing piece used for contacting with the induction end of the loading shaft and sensing the eccentric moment of the eccentric bearing to be tested is arranged on the test seat. The utility model solves the problem that a device for detecting the stress condition of the eccentric needle bearing and the frequency of the bearable impact load is absent in the prior art.
Description
Technical Field
The utility model relates to the technical field of bearing detection devices, in particular to a performance test bench for an eccentric needle bearing.
Background
The bearing is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision. Needle bearings are roller bearings with cylindrical rollers, which are both thin and long relative to their diameter. Such rollers are called needles, and despite their small cross-section, the bearings have a high load-bearing capacity. After the bearing is produced, a performance test needs to be carried out on the eccentric needle bearing to ensure that the eccentric needle bearing has good load resistance, so that a device for detecting the stress condition, the rotating speed and the frequency of impact load bearing of the eccentric needle bearing is needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a performance test bench for an eccentric needle bearing, which aims to solve the problem that a device for detecting the stress condition and the frequency of the bearing impact load of the eccentric needle bearing is lacked in the prior art.
In order to achieve the purpose, the utility model provides an eccentric needle bearing performance test bench which comprises a base, wherein a fixed shaft is arranged on the base, the starting end of the fixed shaft is a fixed end used for fixing an external eccentric needle bearing to be tested, a driving piece used for driving the fixed shaft to axially rotate is arranged at the tail end of the fixed shaft, test seats are arranged on two sides of the fixed end, a test tube extends towards the direction of the fixed shaft from the two test seats, a through groove is formed in the test tube in a hollow mode along the length direction of the test tube, a loading shaft is arranged in the two through grooves in a sliding mode, one end of the loading shaft is a contact end used for penetrating through the corresponding through groove and in clearance fit with the fixed end of the fixed shaft, the other end of the loading shaft is a sensing end, and a sensing piece used for contacting with the sensing end of the loading shaft and sensing the eccentric moment of the eccentric bearing to be tested is arranged on the test seat.
The technical scheme is adopted, and the method has the advantages that: an operator installs an eccentric needle bearing to be tested on a fixed end of a fixed shaft, then starts a driving part, when the driving part is started, the fixed shaft is driven to axially rotate, and at the moment, the eccentric needle bearing to be tested also axially rotates along with the eccentric needle bearing to be tested; the technical arrangement enables an external intelligent center to generate corresponding data such as a computer and the like when the bearing is tested, when an eccentric motion is generated on an outer ring of the eccentric bearing to be detected, a collision moment and collision times can be generated on the external intelligent center when the outer ring touches a loading shaft every time, and the stress condition and the impact load bearing frequency of the bearing are detected through the mode so as to ensure that the eccentric needle bearing can have normal load bearing capacity in subsequent practical application.
The utility model further provides that: the induction part comprises a stress sensor, a reset spring is arranged between the output end of the stress sensor and the induction end of the loading shaft, one end of the reset spring is connected with the output end of the stress sensor, and the other end of the reset spring is connected with the induction end of the loading shaft.
The technical scheme is adopted, and the method has the advantages that: the stress sensor is arranged to ensure that the stress sensor can normally generate a corresponding signal and send the corresponding signal to an external intelligent center when the outer ring of the eccentric bearing to be detected touches the loading shaft, and the reset spring is arranged to ensure that the loading shaft is driven to slide in the through groove after the loading shaft is stressed to slide, so that the outer ring of the eccentric bearing can normally touch the loading shaft next time.
The utility model further provides that: the groove is internally provided with a linear bearing, the outer ring peripheral wall of the linear bearing is contacted with the inner peripheral wall of the through groove, and the loading shaft penetrates through the linear bearing.
The technical scheme is adopted, and the method has the advantages that: the linear bearing is used for transmitting reciprocating motion and reducing friction borne by the loading shaft, so that the accuracy of torque transmission of the loading shaft is further improved, and the service life of the loading shaft is further prolonged.
The utility model further provides that: and the fixed shaft is detachably provided with a check ring which is used for abutting and buckling on the side wall of the outer ring of the external eccentric needle roller bearing to be detected.
The technical scheme is adopted, and the method has the advantages that: the retainer ring can effectively ensure that the bearing to be detected cannot fall off from the fixed shaft when running on the fixed shaft.
The utility model further provides that: the driving piece is a driving motor.
The technical scheme is adopted, and the method has the advantages that: the arrangement of the driving motor ensures that the fixed shaft can normally rotate axially, and meanwhile, the rotation speed of the fixed shaft can be changed by adjusting the power of the driving motor, so that the operation speed of the bearing to be detected is changed, and the load resistance of the bearing to be detected under the condition of different operation speeds is detected.
Drawings
FIG. 1 is a three-dimensional view of the present invention;
FIG. 2 is a three-dimensional view of a test tube according to the present invention;
fig. 3 is a cross-sectional view of fig. 2.
Detailed Description
The utility model provides a performance test bench for an eccentric needle bearing, which comprises a base 1, wherein a fixed shaft 11 is arranged on the base 1, the initial end of the fixed shaft 11 is a fixed end for fixing the external eccentric needle bearing to be tested, a driving part for driving the fixed shaft 11 to rotate axially is arranged at the tail end of the fixed shaft 11, test seats 2 are arranged on two sides of the fixed end, a test tube 21 extends towards the fixed shaft 11 from two test seats 2, a through groove 211 is formed in the test tube 21 along the length direction of the test tube, a loading shaft 22 is arranged in each through groove 211 in a sliding manner, one end of each loading shaft 22 is a contact end 221 which penetrates through the corresponding through groove 211 and is in clearance fit with the fixed end of the fixed shaft 11, the other end of each loading shaft is a sensing end 222, a sensing part which is used for contacting with the sensing end 222 of the loading shaft 22 and sensing the eccentric moment of the eccentric bearing to be tested is arranged on the test seat 2, the sensing piece comprises a force sensor 3, a reset spring 31 is arranged between the output end of the force sensor 3 and the sensing end 222 of the loading shaft 22, one end of the reset spring 31 is connected with the output end of the force sensor 3, the other end of the reset spring is connected with the sensing end 222 of the loading shaft 22, a linear bearing 23 is arranged in the through groove 211, the outer ring outer peripheral wall of the linear bearing 23 is in contact with the inner peripheral wall of the through groove 211, the loading shaft 22 penetrates through the linear bearing 23, a retainer ring 4 used for abutting and buckling on the outer ring side wall of the eccentric needle bearing to be detected is detachably arranged on the fixing shaft 11, and the driving piece is a driving motor 5.
The number of the bearing to be detected in the above technique is 6 in the reference numeral.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides an eccentric bearing capability test platform which characterized in that: the test device comprises a base, be provided with the fixed axle on the base, the fixed axle top is for being used for fixed external examination eccentric bearing's that awaits measuring stiff end, the fixed axle end is provided with and is used for driving the fixed axle to make axial rotation's driving piece, the stiff end both sides all are provided with the test seat, two the test seat all has the test tube towards fixed axle direction extension, it has logical groove, two to have seted up along its length direction cavity on the test tube it is provided with the loading axle all to slide to lead to the inslot, loading axle one end for being used for wearing out corresponding logical groove and with fixed axle stiff end clearance fit's contact jaw, the other end is the induction end, be provided with on the test seat and be used for waiting to detect the inductor of eccentric bearing eccentric moment with loading axle induction end contact and response.
2. The eccentric needle bearing performance test bench of claim 1, wherein: the induction part comprises a stress sensor, a reset spring is arranged between the output end of the stress sensor and the induction end of the loading shaft, one end of the reset spring is connected with the output end of the stress sensor, and the other end of the reset spring is connected with the induction end of the loading shaft.
3. The eccentric needle bearing performance test bench of claim 2, wherein: the groove is internally provided with a linear bearing, the outer ring peripheral wall of the linear bearing is contacted with the inner peripheral wall of the through groove, and the loading shaft penetrates through the linear bearing.
4. The eccentric needle bearing performance test bench of claim 1, wherein: and the fixed shaft is detachably provided with a check ring which is used for abutting and buckling on the side wall of the outer ring of the external eccentric needle roller bearing to be detected.
5. The eccentric needle bearing performance test bench of claim 1, wherein: the driving piece is a driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469881.XU CN216746777U (en) | 2021-10-13 | 2021-10-13 | Eccentric bearing performance test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469881.XU CN216746777U (en) | 2021-10-13 | 2021-10-13 | Eccentric bearing performance test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216746777U true CN216746777U (en) | 2022-06-14 |
Family
ID=81923236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122469881.XU Active CN216746777U (en) | 2021-10-13 | 2021-10-13 | Eccentric bearing performance test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216746777U (en) |
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2021
- 2021-10-13 CN CN202122469881.XU patent/CN216746777U/en active Active
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