CN213957058U - Testing device - Google Patents
Testing device Download PDFInfo
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- CN213957058U CN213957058U CN202023003442.1U CN202023003442U CN213957058U CN 213957058 U CN213957058 U CN 213957058U CN 202023003442 U CN202023003442 U CN 202023003442U CN 213957058 U CN213957058 U CN 213957058U
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- way bearing
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Abstract
The embodiment of the utility model discloses testing arrangement relates to the testing arrangement field. The testing device comprises a frame body, a bearing group, a driving mechanism and a locking assembly. The bearing group comprises a first one-way bearing and a second one-way bearing, the frame body can limit the rotation of a first outer ring of the first one-way bearing, a first inner ring of the first one-way bearing is used for being sleeved with a shaft-shaped structure to be measured, the second one-way bearing is coaxially arranged with the first one-way bearing, the rotation stopping direction is opposite, and a second inner ring of the second one-way bearing is used for being sleeved with the shaft-shaped structure to be measured; the driving mechanism is used for driving a second outer ring of the second one-way bearing to rotate; the locking assembly is used for preventing the shaft-shaped structure to be measured from rotating. Whether the second inner ring is firmly sleeved with the shaft-shaped structure to be tested can be judged by the cooperation of the first one-way bearing and the second one-way bearing, and meanwhile, the second one-way bearing is used for fixing the shaft-shaped structure to be tested and testing the wear resistance of the shaft-shaped structure to be tested, so that the testing process is simplified, and the structural complexity of the testing device is reduced.
Description
Technical Field
The utility model relates to a testing arrangement field especially relates to a testing arrangement for testing axle column structure wearability.
Background
The shaft-like structure is one of the more common part structures, and is often used for transmitting a rotary driving force or supporting an article to move, and in the process, the shaft-like structure and the driving end and the driven end as well as the shaft-like structure and the article are often abraded due to relative movement, so that the precision of the shaft-like structure in subsequent work is influenced. The testing arrangement who has and is used for testing axial structure wearability is when carrying out the test of axial structure wearability, need fix axial structure on testing arrangement earlier, laminate the friction part on axial structure again, it is rotatory through drive shaft column structure, so that the friction part is the axial structure motion relatively, wear and tear to the axial structure, accomplish the wearability test, above-mentioned test procedure is comparatively loaded down with trivial details and testing arrangement structure is complicated, and simultaneously, laminate between unable assurance friction part and the axial structure, influence final test result.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a testing device, and the problem that the existing testing device is complicated in testing process and structure and cannot ensure the fitting between the friction piece and the shaft-shaped structure is solved.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a test apparatus, comprising:
a frame body:
the bearing assembly comprises a first one-way bearing and a second one-way bearing, the first one-way bearing comprises a first outer ring and a first inner ring, the frame body can limit the rotation of the first outer ring, the first inner ring is used for being sleeved with a shaft-shaped structure to be measured, the second one-way bearing is coaxially arranged with the first one-way bearing, the rotation stopping direction of the second one-way bearing is opposite to that of the first one-way bearing, the second one-way bearing comprises a second outer ring and a second inner ring, and the second inner ring is used for being sleeved with the shaft-shaped structure to be measured;
a drive mechanism for driving the second outer race to rotate; and
and the locking assembly is used for preventing the shaft-shaped structure to be measured from rotating.
In some embodiments of the testing device, the first one-way bearing and the second one-way bearing are respectively located on two sides of the frame body, the frame body is provided with a first limiting frame and a second limiting frame, the first limiting frame is used for limiting the displacement of the first one-way bearing moving in the direction away from the second one-way bearing, and the second limiting frame is used for limiting the displacement of the second one-way bearing moving in the direction away from the first one-way bearing.
In some embodiments of the testing device, the frame body includes a stopper, and the first outer ring is provided with a groove, and the stopper is disposed in the groove to limit the rotation of the first outer ring.
In some embodiments of the testing device, the groove extends in a direction parallel to an axial direction of the first one-way bearing.
In some embodiments of the testing device, the locking assembly comprises a torque limiter for providing a damping force preventing rotation of the shaft-like structure under test.
In some embodiments of the testing apparatus, the number of the bearing sets is multiple, the torque limiter is disposed opposite to one of the bearing sets and configured to provide a damping force for preventing the rotation of the shaft-like structure to be tested located on the bearing set, the locking assembly further includes a plurality of locking members, each of the locking members corresponds to one of the remaining bearing sets, and the locking member is configured to prevent the rotation of the shaft-like structure to be tested corresponding to the locking member.
In some embodiments of the testing device, the drive mechanism includes a motor and a drive assembly, and the motor drives the second outer race to rotate through the drive assembly.
In some embodiments of the testing device, the driving assembly includes a first gear disposed on the output end of the motor, a second gear disposed on the second outer ring, a third gear engaged with the adjacent second gear, and a fourth gear engaged with the first gear and one of the second gears, respectively.
In some embodiments of the testing device, the first gear, the second gear, the third gear and the fourth gear are spur gears, and the extending direction of tooth grooves is parallel to the axial direction of the first one-way bearing.
Implement the embodiment of the utility model provides a, will have following beneficial effect:
the testing device comprises a frame body, a bearing group, a driving mechanism and a locking assembly, wherein the bearing group comprises a first one-way bearing and a second one-way bearing which are coaxially arranged and have opposite rotation stopping directions, a first outer ring of the first one-way bearing limits the rotation of the first one-way bearing through the frame body, a first inner ring of the first one-way bearing is sleeved on a shaft-shaped structure to be tested, the shaft-shaped structure to be tested can be prevented from rotating when the first outer ring and the first inner ring stop rotating, and an acting force opposite to the rotation direction of the shaft-shaped structure to be tested is provided for the shaft-shaped structure to be tested. When the driving mechanism drives the second outer ring and the second inner ring to stop rotating, the first one-way bearing and the second one-way bearing have opposite rotation stopping directions, the first one-way bearing releases the shaft-shaped structure to be measured, the second one-way bearing can drive the shaft-shaped structure to be measured to rotate, at the moment, the locking assembly prevents the shaft-shaped structure to be measured from rotating, an acting force opposite to the rotation direction of the shaft-shaped structure to be measured is provided for the shaft-shaped structure to be measured, so that the shaft-shaped structure to be measured rotates, to perform the abrasion resistance test. This testing arrangement can judge through the cooperation of first one-way bearing and the one-way bearing of second whether the second inner circle cup joints firmly with the axial structure that awaits measuring to improved the precision of follow-up test, simultaneously, the one-way bearing of second is used for fixed axial structure that awaits measuring again to be used for testing the wearability of awaiting measuring the axial structure, thereby has simplified the test procedure, has reduced testing arrangement's structure complexity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
FIG. 1 is an axial view of a test apparatus in one embodiment;
FIG. 2 is an axial view of the test apparatus of FIG. 1 from another perspective;
FIG. 3 is an enlarged view of part A of FIG. 2;
fig. 4 is an exploded view of the test apparatus shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 4, a test apparatus 10 according to an embodiment of the present invention will be described. The test apparatus 10 was used for wear resistance testing of the shaft-like structure 20. In the present embodiment, the shaft-like structure 20 is a separation roller 20, and the separation roller 20 is a commonly used separation structure in a printer, a copier, a printer, a cash counter, a cash box, and an ATM apparatus. The test apparatus 10 includes: a frame body 100, a bearing set, a driving mechanism 200 and a locking assembly 300. The frame body 100 is used for mounting the bearing set, the driving mechanism 200 and the locking assembly 300. In this embodiment, the frame body 100 includes a bottom plate 110, and a first side plate 120 and a second side plate 130 vertically disposed on the bottom plate 110, wherein the first side plate 120 and the second side plate 130 are disposed oppositely and respectively located at two ends of the bottom plate 110, and enclose with the bottom plate 110 to form the frame body 100 with an upward opening in a U shape. The bearing group includes first one-way bearing 400 and second one-way bearing 500, first one-way bearing 400 includes first outer lane and first inner circle, support body 100 can restrict first outer lane rotatory, first inner circle is used for cup jointing the separation roller 20 that awaits measuring, second one-way bearing 500 and the coaxial setting of first one-way bearing 400, the rotation stopping direction of second one-way bearing 500 is opposite with the rotation stopping direction of first one-way bearing 400, second one-way bearing 500 includes second outer lane and second inner circle, the second inner circle is used for cup jointing the separation roller 20 that awaits measuring. The driving mechanism 200 is used to drive the second outer race to rotate. The locking assembly 300 is used to prevent the separation roller 20 to be tested from rotating and provide a force to the separation roller 20 to be tested opposite to the rotating direction thereof. Therefore, the first outer ring and the first inner ring can prevent the separation roller 20 to be tested from rotating when the first outer ring and the first inner ring stop rotating, and an acting force opposite to the rotating direction of the separation roller 20 to be tested is provided. When the driving mechanism 200 drives the second outer ring to rotate relative to the second inner ring, the first one-way bearing 400 locks the separation roller 20 to be tested, so that whether the second inner ring is firmly sleeved with the separation roller 20 to be tested can be judged by observing whether the second inner ring rotates along with the second outer ring, when the driving mechanism 200 drives the second outer ring to stop rotating along with the second inner ring, the first one-way bearing 400 loosens the separation roller 20 to be tested due to the fact that the rotation stopping directions of the first one-way bearing 400 and the second one-way bearing 500 are opposite, the second one-way bearing 500 can drive the separation roller 20 to be tested to rotate, at the moment, the locking assembly 300 prevents the separation roller 20 to be tested from rotating, an acting force opposite to the rotating direction of the separation roller 20 to be tested is provided, so that the second inner ring rotates relative to the separation roller 20 to be tested, to perform the abrasion resistance test.
This testing arrangement 10 can judge through the cooperation of first one-way bearing 400 and second one-way bearing 500 whether the second inner circle cup joints firmly with the separation roller 20 that awaits measuring to improved the precision of follow-up test, simultaneously, second one-way bearing 500 is used for fixing the separation roller 20 that awaits measuring again and is used for testing the wearability of the separation roller 20 that awaits measuring, thereby has simplified test procedure, has reduced testing arrangement 10's structure complexity.
In one embodiment, the first unidirectional bearing 400 and the second unidirectional bearing 500 are respectively located at two sides of the first side plate 120, the frame body 100 is provided with a first limiting frame 600 and a second limiting frame 700, the first limiting frame 600 is used for limiting the displacement of the first unidirectional bearing 400 moving towards the direction away from the second unidirectional bearing 500, and the second limiting frame 700 is used for limiting the displacement of the second unidirectional bearing 500 moving towards the direction away from the first unidirectional bearing 400. So can make first one-way bearing 400 can move between first spacing 600 and support body 100, simultaneously, can make second one-way bearing 500 can move between second spacing 700 and support body 100 to can reduce the follow-up precision of installing separation roller 20, in order to make things convenient for quick with separation roller 20 respectively with first inner circle and second inner circle be connected. In addition, due to the limitation of the first limiting frame 600 and the second limiting frame 700, when the separation roller 20 moves relative to the frame body 100, the first one-way bearing 400 and the second one-way bearing 500 impact the frame body 100 to separate from the separation roller 20, and subsequent tests are affected. The first limiting frame 600 and the second limiting frame 700 can be integrally formed with the frame body 100, or the first limiting frame 600 and the second limiting frame 700 can be integrally connected with the frame body 100 through welding, or the first limiting frame 600 and the second limiting frame 700 can be detachably connected with the frame body 100 in an inserting mode, a bolt handle closing mode, a hinge mode and the like.
In one embodiment, the frame 100 includes a stopper 140, and the first outer ring is provided with a groove, and the stopper 140 is disposed through the groove to limit the rotation of the first outer ring. The stability of being connected between first outer lane and the support body 100 can be guaranteed through the mode of pegging graft, and the mode of pegging graft is convenient for first one-way bearing 400 and the assembly of support body 100 simultaneously, saves the assemble duration to test duration has been saved. It will be appreciated that in other embodiments, the first outer race is provided with projections by which rotation of the first outer race is limited by engagement with the stop 140.
On the basis of the above embodiment, the extending direction of the groove is parallel to the axial direction of the first one-way bearing 400. This facilitates the position adjustment between the first one-way bearing 400 and the stopper 140 while ensuring that the stopper 140 can restrict the rotation of the first outer ring, reducing the assembly accuracy of the separation roller 20.
On the basis of the above-mentioned series of embodiments, the number of the bearing sets is three, the locking assembly 300 includes a torque limiter 310 and two locking members 320, the torque limiter 310 is disposed opposite to one of the bearing sets and is configured to provide a damping force for preventing the separation roller 20 to be tested located on the bearing set from rotating, each locking member 320 corresponds to each remaining bearing set one by one, and the locking member 320 is configured to prevent the separation roller 20 to be tested corresponding to the locking member from rotating. The bearing set is arranged at one end of the separating roller 20, and the torsion limiter 310 and the locking piece 320 are respectively arranged at the other end of the corresponding separating roller 20, so that the separating roller 20 to be tested can be prevented from rotating, and an acting force opposite to the rotating direction of the separating roller 20 to be tested is provided for the separating roller 20 to be tested. Meanwhile, different test conditions can be simulated by changing the damping force set by the torque limiter 310.
Further, the driving mechanism 200 includes a motor 210 and a driving assembly 220, and the motor 210 drives the second outer ring to rotate through the driving assembly 220. The motor 210 may be a control motor such as a stepping motor or a servo motor. In this embodiment, the motor 210 is a stepping motor. The stepping motor can ensure that the rotation speed is controllable, the starting and stopping response is fast, the rotation can be stopped in time after the preset rotation angle is reached, and the test result can be conveniently and timely observed. Meanwhile, the torque force is transmitted to the second outer ring through the driving assembly 220, so that the test of a plurality of separating rollers 20 or the test of different shaft-shaped structures 20 can be conveniently controlled at the same time, and the locking piece 320 can lock the shaft-shaped structures 20 all the time to prevent the shaft-shaped structures from rotating. The driving assembly 220 can ensure that the torsion applied to each shaft-shaped structure 20 is the same, when the torsion limiter 310 is observed to slip from the shaft-shaped structure 20, a preset test condition is reached, and at this time, the motor 210 should be stopped to drive the second outer ring to rotate, so as to ensure that the abrasion loss caused by each shaft-shaped structure 20 is close to each other, thereby facilitating comparison.
Further, the driving assembly 220 includes a first gear 221 disposed on the output end of the motor 210, a second gear 222 sleeved on the second outer ring, a third gear 223 engaged with the adjacent second gear 222, and a fourth gear 224 engaged with the first gear 221 and one of the second gears 222, respectively. Thus, the torque provided by the motor 210 can be stably transmitted to the second outer rings by the engagement between the gears.
Further, the first gear 221, the second gear 222, the third gear 223, and the fourth gear 224 are all spur gears and the tooth groove extending direction is parallel to the axial direction of the first one-way bearing 400. This facilitates the position adjustment between the second one-way bearing 500 and the separation roller 20, reducing the assembly accuracy of the separation roller 20.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (9)
1. A test apparatus, comprising:
a frame body:
the bearing assembly comprises a first one-way bearing and a second one-way bearing, the first one-way bearing comprises a first outer ring and a first inner ring, the frame body can limit the rotation of the first outer ring, the first inner ring is used for being sleeved with a shaft-shaped structure to be measured, the second one-way bearing is coaxially arranged with the first one-way bearing, the rotation stopping direction of the second one-way bearing is opposite to that of the first one-way bearing, the second one-way bearing comprises a second outer ring and a second inner ring, and the second inner ring is used for being sleeved with the shaft-shaped structure to be measured;
a drive mechanism for driving the second outer race to rotate; and
and the locking assembly is used for preventing the shaft-shaped structure to be measured from rotating.
2. The testing device according to claim 1, wherein the first one-way bearing and the second one-way bearing are respectively located on two sides of the frame body, a first limiting frame and a second limiting frame are arranged on the frame body, the first limiting frame is used for limiting displacement of the first one-way bearing moving in a direction away from the second one-way bearing, and the second limiting frame is used for limiting displacement of the second one-way bearing moving in a direction away from the first one-way bearing.
3. The testing device of claim 1, wherein the frame includes a stop, the first outer race having a groove, the stop being disposed through the groove to limit rotation of the first outer race.
4. A test device as claimed in claim 3, wherein the grooves extend in a direction parallel to the axial direction of the first unidirectional bearing.
5. The testing device of any one of claims 1 to 4, wherein the locking assembly comprises a torque limiter for providing a damping force preventing rotation of the shaft-like structure to be tested.
6. The testing device of claim 5, wherein the number of the bearing sets is plural, the torque limiter is disposed opposite to one of the bearing sets and configured to provide a damping force for preventing the rotation of the shaft-like structure to be tested on the bearing set, the locking assembly further comprises a plurality of locking members, each of the locking members corresponds to one of the remaining bearing sets, and the locking member is configured to prevent the rotation of the shaft-like structure to be tested corresponding to the locking member.
7. The testing device of claim 1, wherein the drive mechanism includes a motor and a drive assembly, the motor driving the second outer race to rotate via the drive assembly.
8. The testing device of claim 7, wherein the driving assembly comprises a first gear disposed on the output end of the motor, a second gear disposed on the second outer ring, a third gear engaged with an adjacent second gear, and a fourth gear engaged with the first gear and one of the second gears, respectively.
9. The testing device of claim 8, wherein the first gear, the second gear, the third gear and the fourth gear are all spur gears and the tooth groove extending direction is parallel to the axial direction of the first one-way bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023003442.1U CN213957058U (en) | 2020-12-15 | 2020-12-15 | Testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023003442.1U CN213957058U (en) | 2020-12-15 | 2020-12-15 | Testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213957058U true CN213957058U (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023003442.1U Active CN213957058U (en) | 2020-12-15 | 2020-12-15 | Testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213957058U (en) |
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2020
- 2020-12-15 CN CN202023003442.1U patent/CN213957058U/en active Active
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