Precision bearing friction test bench
By introducing the drive mechanism adjustment limit clamp and the B-hand turntable to the bearing friction test bench to the design of pressure exerting support columns, the problem of unfixed fixation and small adaptation range in the prior art is solved, and stable clamping and efficient testing of bearings of different sizes is achieved.
Patent Information
- Application Number
- CN202421648424.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The fixing method of the existing bearing friction test bench is too simple, the fixing is not firm, and the adaptability range is small, so it cannot adapt to bearings of different sizes, resulting in the need of multiple equipment for testing, increasing the cost of equipment investment and reducing working efficiency.
A precision bearing friction test bench is designed to drive the movement of the limit clamp through the driving mechanism, adjust the clamping force, and drive the support column to put pressure on the top of the bearing through the B hand rotor to improve the wrapping and stability of the clamping.
It realizes flexible clamping of bearings of different sizes, improves the stability and efficiency of testing, and reduces the cost of equipment investment.
Smart Images
Figure CN222882299U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of test benches, in particular to a precision bearing friction test bench. Background Art
[0002] Bearings entered the historical stage with the emergence of human industrial civilization. In the 16th century, the Industrial Revolution began in the West. In the mid-18th century, bearings began to appear as independent mechanical components. By the beginning of the 20th century, bearing technology entered the modern development period and a large-scale bearing industry began to form. Bearings are one of the most widely used parts in the mechanical field, and the quality of needle rollers or rollers is one of the determining factors of bearing rotation stability. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.
[0003] For example, patent CN219777079U discloses a precision bearing friction test bench, including a table, a frame fixed on the table, a cylinder body fixed at both ends of the frame, an arc plate fixed on the piston rod of the cylinder body, a test bearing clamped between the two arc plates, and a test shaft interference fit in the test bearing. The utility model can realize the normal conduct of the bearing ball friction test by matching the test bearing with the test shaft, clamping and positioning the test bearing through the arc plate, and docking and installing the test shaft with the motor part. After the test is completed, the test shaft and the mounting plate can be quickly disassembled by the threaded cap and the threaded rod, which is convenient for the workers to operate. When using the above technology, it is found that the following technical problems exist in the prior art: the prior art bearing friction test bench is too simple to fix, the fixation is not firm, the adaptability range is small, and it cannot adapt to bearings of different sizes. It needs to be tested on different equipment, which increases the equipment investment cost and reduces the work efficiency. For this reason, we design a precision bearing friction test bench to provide another technical solution to the above technical problems. Utility Model Content
[0004] Based on this, it is necessary to provide a precision bearing friction test bench to address the above-mentioned technical problems. The driving mechanism drives the two limit clamps to move to the opposite or closer end, and then adjusts the clamping according to different bearings. By turning to the B-hand turntable, the support column is driven to apply pressure to the top of the bearing, which effectively improves the clamping and wrapping of the bearing and facilitates improving the stability of the bearing during the test.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A precision bearing friction test bench comprises an operating platform, a U-shaped frame is fixed on the top of the operating platform, a mounting box is fixed on the bottom end of the inner side of the U-shaped frame, both ends of the top of the mounting box are slidably connected with limit clamps, a buffer spring is fixed on the ends of the two limit clamps close to each other, a clamp is fixed on the ends of the buffer springs away from the limit clamps, and a driving mechanism for driving the limit clamps to move is arranged inside the mounting box.
[0007] As a preferred embodiment of the precision bearing friction test bench provided by the utility model, the driving machine includes a linkage rod, the bottom end of the limit clamp is fixed with a linkage rod through the installation box, the bottom end of the linkage rod is fixed with a rack, the rack is slidably connected to the installation box, the ends of the two racks close to each other are meshed and connected with gears, a rotating rod is fixed inside the gear, and an A-hand turntable is fixed on one side of the rotating rod through the installation box, and limiting grooves are evenly distributed inside the A-hand turntable.
[0008] As a preferred embodiment of the precision bearing friction test bench provided by the utility model, a limiting mechanism is arranged on one side of the mounting box, and the limiting mechanism includes an A-hand turntable, an L-shaped support frame is fixed on one side of the mounting box, one end of the L-shaped support frame is slidably connected to a limiting pull rod, a pulling spring is sleeved on the outer side of the limiting pull rod, one side of the pulling spring is fixedly connected to the L-shaped support frame, the other side of the pulling spring is fixedly connected to the limiting pull rod, and one side of the limiting pull rod is slidably connected to the limiting groove.
[0009] As a preferred embodiment of the precision bearing friction test bench provided by the utility model, a pressure mechanism is arranged at the top end inside the U-shaped frame, and the pressure mechanism includes a limiting slide bar, a limiting slide bar is fixed at one end inside the U-shaped frame, a threaded rod is rotatably connected to the other end inside the U-shaped frame, a slide plate is slidably connected to the inside of the U-shaped frame, one end of the slide plate is slidably connected to the limiting slide bar, the other end of the slide plate is threadedly connected to the threaded rod, and a support column is fixed to the bottom end of the slide plate.
[0010] As a preferred embodiment of the precision bearing friction test bench provided by the utility model, the bottom end of the threaded rod is rotatably connected to the mounting box, the top end of the threaded rod passes through the U-shaped frame to fix a B-hand turntable, and the interior of the B-hand turntable is evenly provided with card slots.
[0011] As a preferred embodiment of the precision bearing friction test bench provided by the utility model, a mounting groove is opened at one end of the top end of the U-shaped frame, and a fixing mechanism for limiting the B-hand turntable is arranged inside the mounting groove. The fixing mechanism includes a thrust spring, and the bottom end of the inner side of the mounting groove is fixedly connected to the thrust spring, and a T-bar is fixed to the top end of the thrust spring, and the top end of the T-bar is slidably connected to the slot.
[0012] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.
[0013] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:
[0014] The utility model provides a precision bearing friction test bench, which is disengaged from the limit groove by pulling the limit mechanism, and then turns to the A-hand turntable to drive two limit clamps to clamp the bearing, so as to adjust according to the sizes of different bearings, thereby improving the flexibility and convenience of the device;
[0015] By turning the B-hand turntable to drive the threaded rod to rotate, the threaded rod drives the slide plate and the support column to apply top pressure to the bearing, thereby improving the firmness of the bearing clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the U-shaped frame of the utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the installation box of the utility model;
[0020] Figure 4 This is a schematic diagram of the connection structure between the B-hand turntable and the T-bar of the utility model.
[0021] In the figure: 1. operating platform; 2. U-shaped frame; 3. mounting box; 4. gear; 5. buffer spring; 6. clamp; 7. pull spring; 8. linkage rod; 9. rack; 10. A-hand turntable; 11. limit clamp; 12. support column; 13. slide plate; 14. rotating rod; 15. B-hand turntable; 16. T-bar; 17. thrust spring; 18. threaded rod; 19. limit slide rod; 20. L-shaped support frame; 21. limit pull rod. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0026] Embodiment 1
[0027] Reference Figure 1-Figure 3 , a precision bearing friction test bench comprises an operating platform 1, a U-shaped frame 2 is fixed on the top of the operating platform 1, and a mounting box 3 is fixed on the bottom end of the inner side of the U-shaped frame 2. Both ends of the top of the mounting box 3 are slidably connected to limit clamps 11, and different bearings are adjusted, clamped and fixed by the limit clamps 11, thereby improving the flexibility of the device, and the ends of the two limit clamps 11 close to each other are fixed with buffer springs 5, and the ends of the buffer springs 5 away from the limit clamps 11 are fixed with clamps 6. When the bearing is placed between the clamps 6, the limit clamps 11 drive the clamps 6 and the buffer springs 5 to clamp the bearing. At this time, the elasticity of the buffer springs 5 buffers the clamps 6, thereby preventing the limit clamps 11 from causing deformation or damage to the bearing. A driving mechanism for driving the limit clamps 11 to move is provided inside the mounting box 3, and the two limit clamps 11 are driven by the driving mechanism to move to the opposite or close ends, so as to facilitate the adjustment and clamping according to different bearings, thereby improving the adaptability and convenience of the device, thereby greatly reducing the investment cost and improving the production efficiency;
[0028] The driving machine includes a linkage rod 8, the bottom end of the limiting clamp 11 passes through the installation box 3 to fix the linkage rod 8, the bottom end of the linkage rod 8 is fixed with a rack 9, and one end of one of the upper racks 9 passes through the inside of one of the linkage rods 8 to slide, thereby avoiding the position conflict between one of the upper racks 9 and one of the right-end linkage rods 8, thereby effectively avoiding the sliding route conflict, the rack 9 is slidably connected to the installation box 3, and the ends of the two racks 9 close to each other are meshed and connected with the gear 4, the inside of the gear 4 is fixed with a rotating rod 14, and one side of the rotating rod 14 passes through the installation box 3 to fix the A-hand turntable 10, and the inside of the A-hand turntable 10 is evenly provided with limiting grooves;
[0029] A limiting mechanism is provided on one side of the installation box 3, and the limiting mechanism includes an A-hand turntable 10. An L-shaped support frame 20 is fixed on one side of the installation box 3. One end of the L-shaped support frame 20 is slidably connected to a limiting pull rod 21. A pulling spring 7 is sleeved on the outer side of the limiting pull rod 21. One side of the pulling spring 7 is fixedly connected to the L-shaped support frame 20, and the other side of the pulling spring 7 is fixedly connected to the limiting pull rod 21. One side of the limiting pull rod 21 is slidably connected to the limiting groove.
[0030] When the A-hand turntable 10 drives the gear 4 to rotate, the gear 4 drives the two racks 9, the linkage rod 8 and the limit clamp 11 to slide, thereby effectively fixing the bearing to prevent the A-hand turntable 10 from reversing, and the A-hand turntable 10 is limited by the limit mechanism.
[0031] Embodiment 2
[0032] Reference Figure 4 A precision bearing friction test bench, a pressure mechanism is arranged at the top of the U-shaped frame 2, and the pressure mechanism includes a limited sliding rod 19, one end of the inner side of the U-shaped frame 2 is fixed with the limited sliding rod 19, and the other end of the inner side of the U-shaped frame 2 is rotatably connected with a threaded rod 18, and a slide plate 13 is slidably connected with the inner side of the U-shaped frame 2, and the slide plate 13 is driven to slide up and down by the limited sliding rod 19, and the limited sliding rod 19 limits the slide plate 13, one end of the slide plate 13 is slidably connected with the limited sliding rod 19, and the other end of the slide plate 13 is threadedly connected with the threaded rod 18, and a support column 12 is fixed at the bottom end of the slide plate 13, and the slide plate 13 is driven to slide up and down by the rotation of the threaded rod 18, and when the slide plate 13 slides downward, the support column 12 is driven to press the bearing, so as to improve the stability of the bearing fixation;
[0033] The bottom end of the threaded rod 18 is rotatably connected to the installation box 3, and the top end of the threaded rod 18 passes through the U-shaped frame 2 to fix the B-hand turntable 15, and the interior of the B-hand turntable 15 is evenly provided with card slots;
[0034] A mounting groove is provided at one end of the top of the U-shaped frame 2, and a fixing mechanism for limiting the B-hand turntable 15 is provided inside the mounting groove. The fixing mechanism includes a thrust spring 17. The bottom end of the inner side of the mounting groove is fixedly connected to the thrust spring 17. A T-shaped rod 16 is fixed to the top of the thrust spring 17. The top of the T-shaped rod 16 is slidably connected to the card slot.
[0035] By rotating the B-hand turntable 15, the threaded rod 18 is driven to rotate, so that the threaded rod 18 drives the slide plate 13 and the support column 12 to clamp the bearing, and the elasticity of the thrust spring 17 drives the T-bar 16 to limit the slot inside the B-hand turntable 15, thereby improving the stability of the pressure applied by the support column 12 to the bearing.
[0036] The use process of a precision bearing friction test bench provided by the utility model is as follows: when in use, the bearing is placed between two limit clamps 11 for clamping, and the limit pull rod 21 is pulled out of the limit groove inside the A hand turntable 10, and the A hand turntable 10 is rotated to drive the rotating rod 14 and the gear 4 to rotate, so that the gear 4 drives the two racks 9 and the limit clamps 11 to slide towards or away from each other, thereby effectively adjusting according to the sizes of different bearings, improving the flexibility and convenience of the device;
[0037] When the limit clamp 11 drives the buffer spring 5 and the clamping plate 6 to clamp the bearing to avoid unstable fixation caused by pressure on both sides, the threaded rod 18 is driven to rotate by turning to the B-hand turntable 15, so that the threaded rod 18 drives the slide plate 13 and the support column 12 to apply pressure to the top of the bearing, thereby forming a three-way clamp, further improving the firmness of the bearing during the test, and the elasticity of the thrust spring 17 drives the T-bar 16 to limit the internal slot of the B-hand turntable 15 to prevent the threaded rod 18 from applying pressure to the support column 12 and causing instability.
[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A precision bearing friction test bench, characterized in that: The invention comprises an operating platform (1), a U-shaped frame (2) is fixed on the top of the operating platform (1), a mounting box (3) is fixed on the bottom end of the inner side of the U-shaped frame (2), both ends of the top of the mounting box (3) are slidably connected to limit clamps (11), a buffer spring (5) is fixed on the ends of the two limit clamps (11) close to each other, a clamping plate (6) is fixed on the ends of the buffer springs (5) away from the limit clamps (11), and a driving mechanism for driving the limit clamps (11) to move is arranged inside the mounting box (3).
2. A precision bearing friction test bench according to claim 1, characterized in that: The driving machine comprises a linkage rod (8), the bottom end of the limiting clamp (11) passes through the installation box (3) and is fixed with the linkage rod (8), the bottom end of the linkage rod (8) is fixed with a rack (9), one end of one of the top racks (9) is slidably connected to the inside of one of the right linkage rods (8), the rack (9) is slidably connected to the installation box (3), the ends of the two racks (9) close to each other are meshed and connected with a gear (4), a rotating rod (14) is fixed inside the gear (4), one side of the rotating rod (14) passes through the installation box (3) and is fixed with an A-hand turntable (10), and the A-hand turntable (10) is evenly provided with limiting grooves inside.
3. A precision bearing friction test bench according to claim 2, characterized in that: A limiting mechanism is provided on one side of the installation box (3), and the limiting mechanism includes an A-hand turntable (10). An L-shaped support frame (20) is fixed on one side of the installation box (3), and one end of the L-shaped support frame (20) is slidably connected to a limiting pull rod (21). A pulling spring (7) is sleeved on the outer side of the limiting pull rod (21), one side of the pulling spring (7) is fixedly connected to the L-shaped support frame (20), and the other side of the pulling spring (7) is fixedly connected to the limiting pull rod (21), and one side of the limiting pull rod (21) is slidably connected to the limiting groove.
4. A precision bearing friction test bench according to claim 1, characterized in that: A pressure mechanism is arranged at the top end of the U-shaped frame (2), and the pressure mechanism comprises a limit sliding rod (19); one end of the inner side of the U-shaped frame (2) is fixed with the limit sliding rod (19); the other end of the inner side of the U-shaped frame (2) is rotatably connected with a threaded rod (18); the inner side of the U-shaped frame (2) is slidably connected with a slide plate (13); one end of the slide plate (13) is slidably connected with the limit sliding rod (19); the other end of the slide plate (13) is threadedly connected with the threaded rod (18); and the bottom end of the slide plate (13) is fixed with a support column (12).
5. A precision bearing friction test bench according to claim 4, characterized in that: The bottom end of the threaded rod (18) is rotatably connected to the installation box (3), and the top end of the threaded rod (18) passes through the U-shaped frame (2) and is fixed with a B-hand turntable (15), and the interior of the B-hand turntable (15) is evenly provided with card slots.
6. A precision bearing friction test bench according to claim 1, characterized in that: A mounting groove is provided at one end of the top end of the U-shaped frame (2), and a fixing mechanism for limiting the position of the B-hand turntable (15) is provided inside the mounting groove. The fixing mechanism includes a thrust spring (17), and the bottom end of the inner side of the mounting groove is fixedly connected to the thrust spring (17). A T-shaped rod (16) is fixed to the top end of the thrust spring (17), and the top end of the T-shaped rod (16) is slidably connected to the slot.