Bearing service life experiment device with adjustable load
By designing a rotation and clamping device, the problem that traditional bearing testing devices cannot adjust the load and adapt to bearings of different sizes is solved. This enables the simulation of bearing stress under complex working conditions and expands the testing range, providing more accurate performance evaluation.
Patent Information
- Application Number
- CN202423311317.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional bearing life testing devices are difficult to adjust the load, cannot simulate the stress conditions of bearings under complex working conditions, and have poor adaptability to bearings of different sizes, thus limiting the testing range.
An experimental device including a rotating device and a clamping device was designed. The rotating device adjusts the bearing load through a DC motor and a transmission rod, and the clamping device achieves stable clamping of bearings of different sizes through a servo motor and a sliding block.
It enables the simulation of bearing stress under different operating conditions, expands the experimental range, and provides more accurate performance evaluation data.
Smart Images
Figure CN223711064U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing test technical field, concretely relates to a bearing service life experimental device of adjustable load. BACKGROUND
[0002] In the research and development, production and application process of bearing, it is important to accurately test the service life of bearing. However, the traditional bearing service life experimental device has many deficiencies. On the one hand, it is difficult to adjust the load borne by the bearing, and can only be tested under fixed load, which makes it difficult to fully grasp the performance of the bearing under different working conditions. For the bearing used in complex stress environment, the test result is not accurate enough. On the other hand, the existing device has poor size adaptability for bearing, and it is difficult to effectively clamp and experiment on bearings of different sizes, which limits its test range.
[0003] By setting the rotating device and the clamping device, the load borne by the bearing can be adjusted, and the stress situation under various working conditions can be simulated. At the same time, bearings of different sizes can be stably clamped, thereby expanding the experimental range and providing data support for performance evaluation and improvement of bearings. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model solves its technical problems by adopting the following technical scheme: a bearing service life experimental device with adjustable load, comprising: a base, an outer wall of the top of the base is fixedly connected with a connecting frame, and an outer wall of the top of the base is fixedly connected with a limiting frame; a rotating device, an outer wall of the rotating device is fixedly connected with an outer wall of the connecting frame, and the rotating device is used for rotating the bearing; a clamping device, an outer wall of the clamping device is fixedly connected with an outer wall of the base, and the clamping device is used for clamping the bearing.
[0005] Preferably, the rotating device comprises a DC motor, an output end of the DC motor is fixedly connected with a transmission rod, an inner wall of the transmission rod is threadedly connected with a pressing device through a threaded hole, the threaded hole is formed in the wall of the transmission rod, an outer wall of the DC motor is fixedly connected with an outer wall of the connecting frame, and an outer wall of the transmission rod is rotatably connected with an inner wall of the limiting frame. By setting the rotating device, the load borne by the bearing can be adjusted, and the stress situation of the bearing under different working conditions can be simulated.
[0006] Preferably, the pressing device comprises an adjusting screw rod, an outer wall of the adjusting screw rod is fixedly connected with an extension rod, an outer wall of the adjusting screw rod is fixedly connected with a limiting ring, an outer wall of the limiting ring is rotatably connected with a rotating ring, an outer wall of the rotating ring is fixedly connected with a pushing block, an outer wall of the adjusting screw rod is threadedly connected with an inner wall of the transmission rod through a threaded hole, an outer wall of the adjusting screw rod is rotatably connected with an outer wall of the rotating ring, and an outer wall of the extension rod is rotatably connected with an outer wall of the rotating ring.
[0007] Preferably, the clamping device comprises a fixed frame, the outer wall of the fixed frame is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a bidirectional screw rod, the outer wall of the bidirectional screw rod is symmetrically screwed with a sliding block, the outer wall of the sliding block is fixedly connected with a clamping strip, the outer wall of the fixed frame is fixedly connected with the outer wall of the base, and the inner wall of the sliding block is slidably connected with the outer wall of the fixed frame.
[0008] The beneficial effects of the present utility model are as follows:
[0009] 1. The present utility model adjusts the load size borne by the bearing through the setting of the rotating device, thereby simulating the stress condition of the bearing under different working conditions.
[0010] 2. The present utility model realizes the stable clamping of bearings of different sizes through the setting of the clamping device, thereby expanding the test range of the experimental device. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 is the perspective view of the present utility model;
[0012] Figure 2 is the structural schematic view of the rotating device of the present utility model;
[0013] Figure 3 is the structural schematic view of the pressing device of the present utility model;
[0014] Figure 4 is the partial structural schematic view of the base of the present utility model.
[0015] In the figure: 1, base; 2, connecting frame; 3, rotating device; 4, clamping device; 5, limiting frame; 31, DC motor; 32, transmission rod; 33, threaded hole; 34, pressing device; 341, adjusting screw rod; 342, extension rod; 343, limiting ring; 344, rotating ring; 345, pushing block; 41, fixed frame; 42, servo motor; 43, bidirectional screw rod; 44, sliding block; 45, clamping strip. DETAILED DESCRIPTION
[0016] The present utility model will be further explained in detail in combination with the drawings and specific embodiments. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limit the present utility model to the disclosed forms. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model so as to design various embodiments with various modifications suitable for specific purposes.
[0017] Embodiment: please refer to Figure 1 Figure 4 The utility model provides a technical scheme: a bearing service life experimental device of adjustable load, it includes: base 1, the outer wall fixedly connected with connecting frame 2 in base 1 top, the outer wall fixedly connected with limiting frame 5 in base 1 top;Rotary device 3, the outer wall of rotary device 3 is fixedly connected with the outer wall of connecting frame 2, and rotary device 3 is used to rotate bearing;
[0018] Rotary device 3 includes DC motor 31, the output of DC motor 31 is fixedly connected with transmission rod 32, and the inner wall of transmission rod 32 is threadedly connected with pressure device 34 through screw hole 33, and screw hole 33 is set up in the wall of transmission rod 32, the outer wall of DC motor 31 is fixedly connected with the outer wall of connecting frame 2, the outer wall of transmission rod 32 is rotationally connected with the inner wall of limiting frame 5, and rotary device 3 drives transmission rod 32 to rotate to output power through DC motor 31, and transmission rod 32 drives the inner ring of bearing to rotate.
[0019] Pressure device 34 includes adjusting screw 341, the outer wall of adjusting screw 341 is fixedly connected with extension rod 342, the outer wall of adjusting screw 341 is fixedly connected with limiting ring 343, the outer wall of limiting ring 343 is rotationally connected with rotating ring 344, the outer wall of rotating ring 344 is fixedly connected with push block 345, the outer wall of adjusting screw 341 is threadedly connected with the inner wall of transmission rod 32 through screw hole 33, the outer wall of adjusting screw 341 is rotationally connected with the outer wall of rotating ring 344, the outer wall of extension rod 342 is rotationally connected with the outer wall of rotating ring 344, and transmission rod 32 is threadedly connected with the adjusting screw 341 of pressure device 34 through screw hole 33, and then the lateral load of bearing outer ring is applied through pressure device 34, when DC motor 31 drives transmission rod 32 to rotate, adjusting screw 341 can move in transmission rod 32, and the adjustment of load is realized.
[0020] Clamping device 4 includes fixed frame 41, the outer wall of fixed frame 41 is fixedly connected with servo motor 42, the output of servo motor 42 is fixedly connected with bidirectional screw rod 43, the outer wall of bidirectional screw rod 43 is symmetrically threadedly connected with sliding block 44, the outer wall of sliding block 44 is fixedly connected with clamping strip 45, the outer wall of fixed frame 41 is fixedly connected with the outer wall of base 1, the inner wall of sliding block 44 is slidably connected with the outer wall of fixed frame 41, and the fixed frame 41 of clamping device 4 is used as base support, and the rotation of bidirectional screw rod 43 is driven by starting servo motor 42, and a pair of sliding blocks 44 on bidirectional screw rod 43 will approach each other due to the threaded setting and move away from each other, drive clamping strip 45 to clamp or loosen the operation of bearing, and the synchronous rotation of servo motor 42 on the upper and lower sides, and the bearing is clamped together, so that the stable clamping of different size bearings is realized.
[0021] Working principle:
[0022] In use, first, the bearing to be tested is sleeved on the rotating device 3, and the inner ring of the bearing and the transmission rod 32 are fixed, at this time, the bearing is placed in the clamping device 4 on the base 1, the fixed frame 41 of the clamping device 4 serves as a base support, the servo motor 42 is started to drive the bidirectional screw rod 43 to rotate, a pair of sliding blocks 44 on the bidirectional screw rod 43 will move closer to each other or farther away from each other due to the threaded arrangement, driving the clamping strip 45 to clamp or loosen the bearing, and the servo motors 42 on the upper and lower sides are synchronously rotated to jointly clamp the bearing, so that stable clamping of bearings of different sizes is realized.
[0023] Then the DC motor 31 on the connecting frame 2 starts to work, the rotating device 3 drives the transmission rod 32 to rotate to output power through the DC motor 31, the transmission rod 32 drives the inner ring of the bearing to rotate, the transmission rod 32 is in threaded connection with the adjusting screw rod 341 of the pressing device 34 through the threaded hole 33, and then the pressing device 34 is used to apply a lateral load to the outer ring of the bearing, when the DC motor 31 drives the transmission rod 32 to rotate, the adjusting screw rod 341 can move in the transmission rod 32, so as to adjust the load, at this time, the adjusting screw rod 341 drives the extension rod 342, the limiting ring 343, the rotating ring 344 and the pushing block 345 to move integrally, when the pushing block 345 applies different axial pressure to the bearing, the load borne by the bearing is changed, and at the same time, the transmission rod 32 rotates in the limiting frame 5, so as to ensure the stability of rotation.
[0024] The clamping device 4 can stably clamp bearings of different sizes, thereby expanding the test range of the experimental device, and the pressing device 34 in the rotating device 3 can adjust the load, by adjusting the load size, the stress condition of the bearing under different working conditions can be simulated, which is helpful for studying the service life of the bearing under different loads, and provides more targeted and reliable data for the design, improvement and quality evaluation of the bearing.
[0025] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.
Claims
1. A bearing service life testing device with adjustable load, characterized in that, Include: The base (1), the outer wall of the top of the base (1) is fixedly connected with connecting frame (2), the outer wall of the top of the base (1) is fixedly connected with limiting frame (5); Rotary device (3), the outer wall of rotary device (3) and the outer wall of connecting frame (2) are fixedly connected, and the rotary device (3) is used for rotating bearing; Clamping device (4), the outer wall of clamping device (4) and the outer wall of base (1) are fixedly connected, and the clamping device (4) is used for clamping bearing; The rotary device (3) includes a DC motor (31), the output end of the DC motor (31) is fixedly connected with a transmission rod (32), the inner wall of the transmission rod (32) is threadedly connected with a pressing device (34) through a threaded hole (33), and the threaded hole (33) is formed in the wall of the transmission rod (32).
2. The load-adjustable bearing service life test device according to claim 1, characterized in that: The outer wall of the DC motor (31) and the outer wall of the connecting frame (2) are fixedly connected, and the outer wall of the transmission rod (32) and the inner wall of the limiting frame (5) are rotatably connected.
3. The load-adjustable bearing service life test device according to claim 1, characterized in that: The pressing device (34) includes an adjusting screw (341), the outer wall of the adjusting screw (341) is fixedly connected with an extension rod (342), the outer wall of the adjusting screw (341) is fixedly connected with a limiting ring (343), the outer wall of the limiting ring (343) is rotatably connected with a rotating ring (344), and the outer wall of the rotating ring (344) is fixedly connected with a push block (345).
4. The load-adjustable bearing service life test apparatus according to claim 3, characterized by: The outer wall of the adjusting screw (341) is threadedly connected with the inner wall of the transmission rod (32) through the threaded hole (33), the outer wall of the adjusting screw (341) is rotatably connected with the outer wall of the rotating ring (344), and the outer wall of the extension rod (342) is rotatably connected with the outer wall of the rotating ring (344).
5. The load-adjustable bearing service life test apparatus according to claim 1, characterized by: The clamping device (4) includes a fixed frame (41), the outer wall of the fixed frame (41) is fixedly connected with a servo motor (42), the output end of the servo motor (42) is fixedly connected with a bidirectional screw rod (43), the outer wall of the bidirectional screw rod (43) is symmetrically threadedly connected with a sliding block (44), and the outer wall of the sliding block (44) is fixedly connected with a clamping strip (45).
6. The load-adjustable bearing service life test apparatus according to claim 5, characterized by: The outer wall of the fixed frame (41) and the outer wall of the base (1) are fixedly connected, and the inner wall of the sliding block (44) and the outer wall of the fixed frame (41) are slidably connected.