A micro stainless steel silent bearing high-strength service life detection device

Abstract

The utility model belongs to bearing detection technical field relates to a kind of miniature stainless steel mute bearing high-strength life detection device under use, including detection platform, the detection platform top surface one end is rigidly connected with support, the support top is equipped with detection motor, the detection motor output end is equipped with miniature stainless steel mute bearing main body, the detection platform top surface is provided with detection assembly.The utility model is by the setting of detection assembly, can be in analog miniature stainless steel mute bearing main body actual work when exerting dynamic adjustable heavy load detection to it, to reproduce its composite pressure under real application scene, and by real-time adjustment negative point position, the stress distribution uniformity and fatigue strength of miniature stainless steel mute bearing main body under different position stress state can be evaluated, to detect the ability of miniature stainless steel mute bearing main body in complex working condition long-term stable operation, assess its reliability and service life.

Description

Technical Field

[0001] This utility model belongs to the field of bearing testing technology, and relates to a device for testing the service life of a miniature stainless steel silent bearing under high strength. Background Technology

[0002] Miniature stainless steel silent bearings are special bearings designed for precision, low noise, and highly corrosion-resistant environments. They are widely used in medical devices, precision instruments, aerospace, robot joints, consumer electronics, and other fields.

[0003] Before miniature stainless steel silent bearings leave the factory, comprehensive performance testing is a key step in ensuring product reliability. However, traditional testing devices often focus on basic indicators such as quietness and rotational precision, but easily overlook the actual operating status and lifespan of miniature stainless steel silent bearings under long-term high-intensity load conditions. Therefore, a high-intensity service life testing device for miniature stainless steel silent bearings is proposed to address the above issues. Utility Model Content

[0004] The technical problem to be solved by this utility model is that comprehensive testing of the performance of miniature stainless steel silent bearings before they leave the factory is a key link to ensure product reliability. However, traditional testing devices often focus on basic indicators such as quietness and rotational precision, but easily overlook the actual operating status and life performance of miniature stainless steel silent bearings under long-term high-intensity load conditions.

[0005] The present invention discloses a device for testing the service life of a miniature stainless steel silent bearing under high strength, comprising a testing platform, a bracket fixedly connected to one end of the top surface of the testing platform, a testing motor mounted on the top of the bracket, a miniature stainless steel silent bearing body mounted on the output end of the testing motor, and testing components provided on the top surface of the testing platform.

[0006] The detection assembly includes two sets of support plates, a load-bearing slider, a counterweight, and a first pulley. Both support plates are fixed to the center of the top surface of the detection platform. The load-bearing slider is slidably connected to the center of the miniature stainless steel silent bearing body. The counterweight is fixed to the bottom of the load-bearing slider. The first pulley is installed at the output end of the detection motor.

[0007] The detection assembly also includes a reciprocating lead screw, a second pulley, and a transmission belt. The two ends of the reciprocating lead screw are rotatably connected to one side of the middle of the support plate. The second pulley is installed at the end of the reciprocating lead screw near the output end of the detection motor. The two ends of the transmission belt are respectively sleeved on the middle of the first pulley and the second pulley.

[0008] The detection assembly also includes a hollow threaded sleeve and two sets of crossbars. The hollow threaded sleeve is threadedly connected to the middle of the reciprocating screw. One end of each of the two crossbars is fixed to the side of the hollow threaded sleeve near the load-bearing slider. A limit mechanism is provided at the bottom of the hollow threaded sleeve.

[0009] The top of each support plate is provided with a semi-circular groove adapted to the body of the miniature stainless steel silent bearing.

[0010] The limiting mechanism includes a rectangular slide rod and a rectangular slide groove. The top of the rectangular slide rod is fixed to the bottom of the hollow threaded sleeve, and the rectangular slide groove is opened in the middle of the detection platform.

[0011] The bottom of the rectangular slide bar is slidably connected to the middle of the rectangular slide groove.

[0012] The bottom two sides of the rectangular slide bar are fitted to the two sides of the rectangular slide groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting the detection components, a dynamically adjustable load can be applied to the miniature stainless steel silent bearing body during actual operation, thereby reproducing the composite pressure it bears in real application scenarios. Furthermore, by adjusting the load point position in real time, the stress distribution uniformity and fatigue strength of the miniature stainless steel silent bearing body under different stress states can be evaluated, thereby detecting the ability of the miniature stainless steel silent bearing body to operate stably for a long time under complex working conditions and assessing its reliability and service life.

[0014] By setting a limit mechanism, the movement trajectory of the hollow threaded sleeve and the crossbar can be changed, thereby driving the counterweight and the load slider to slide in a straight line, thus improving the stability and reliability of the dynamic adjustment of the load point when the detection component is working. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the detection component of this utility model.

[0018] Figure 3 This is a structural schematic diagram of the load-bearing slider of this utility model.

[0019] Figure 4This is a schematic diagram of the limiting mechanism of this utility model.

[0020] In the diagram: 1. Testing platform; 11. Support frame; 12. Testing motor; 13. Miniature stainless steel silent bearing body; 2. Support plate; 21. Load-bearing slider; 22. Counterweight block; 23. First pulley; 3. Reciprocating screw; 31. Second pulley; 32. Transmission belt; 4. Hollow threaded sleeve; 41. Crossbar; 5. Rectangular slide bar; 51. Rectangular slide groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Example 1

[0026] like Figures 1-4 As shown, a device for testing the service life of a miniature stainless steel silent bearing under high strength includes a testing platform 1. A bracket 11 is fixedly connected to one end of the top surface of the testing platform 1. A testing motor 12 is installed on the top of the bracket 11. The main body 13 of the miniature stainless steel silent bearing is installed at the output end of the testing motor 12. Testing components are provided on the top surface of the testing platform 1.

[0027] The detection assembly includes two sets of support plates 2, a load-bearing slider 21, a counterweight 22, and a first pulley 23. Both support plates 2 are fixed to the middle of the top surface of the detection platform 1. The load-bearing slider 21 is slidably connected to the middle of the miniature stainless steel silent bearing body 13. The counterweight 22 is fixed to the bottom of the load-bearing slider 21. The first pulley 23 is installed at the output end of the detection motor 12.

[0028] The detection assembly also includes a reciprocating lead screw 3, a second pulley 31, and a transmission belt 32. The two ends of the reciprocating lead screw 3 are rotatably connected to one side of the middle of the support plate 2. The second pulley 31 is installed at one end of the reciprocating lead screw 3 near the output end of the detection motor 12. The two ends of the transmission belt 32 are respectively sleeved on the middle of the first pulley 23 and the second pulley 31.

[0029] The detection assembly also includes a hollow threaded sleeve 4 and two sets of crossbars 41. The hollow threaded sleeve 4 is threadedly connected to the middle of the reciprocating screw 3. One end of each of the two crossbars 41 is fixed to the side of the hollow threaded sleeve 4 near the load slider 21. A limit mechanism is provided at the bottom of the hollow threaded sleeve 4.

[0030] The top of each support plate 2 is provided with a semi-circular groove that is adapted to the miniature stainless steel silent bearing body 13.

[0031] When it is necessary to test the miniature stainless steel silent bearing body 13 during operation, the load slider 21 can be inserted into the middle of the miniature stainless steel silent bearing body 13 first. Then, one end of the miniature stainless steel silent bearing body 13 is installed on the output end of the test motor 12. During installation, it is important to place both ends of the miniature stainless steel silent bearing body 13 at the semi-circular slots on the top of the two sets of support plates 2 respectively. After the miniature stainless steel silent bearing body 13 is installed on the test motor 12, the load slider 21 can be slid to move the counterweight 22 towards the two sets of crossbars 41. Then, the counterweight 22 is moved to the middle of the two sets of crossbars 41 on the side closer to each other, so that the two sets of crossbars 41 clamp the counterweight 22.

[0032] Then, the detection motor 12 can be driven to rotate the miniature stainless steel silent bearing body 13 on the top of the support plate 2. When the miniature stainless steel silent bearing body 13 rotates, it is subjected to the pressure of the load slider 21 and the counterweight 22, which will generate a load on the miniature stainless steel silent bearing body 13 during operation, making it work under load. At the same time, when the detection motor 12 rotates, it will drive the first pulley 23 to move synchronously. The torque generated when the first pulley 23 moves will be transmitted to the second pulley 31 through the transmission belt 32, so that the second pulley 31 drives the reciprocating screw 3 to rotate at the two sets of support plates 2.

[0033] When the reciprocating screw 3 rotates, it drives the hollow threaded sleeve 4 and the crossbar 41 to move synchronously. The movement of the hollow threaded sleeve 4 is affected by the limiting mechanism, thereby changing the movement trajectory of the hollow threaded sleeve 4 and the crossbar 41, causing them to slide back and forth in a straight line in the middle of the reciprocating screw 3. When the crossbar 41 moves, it drives the counterweight 22 and the load slider 21 to move, thereby causing the load slider 21 to slide in the middle of the miniature stainless steel silent bearing body 13, thereby changing the position of the load slider 21 and changing the load weight of the miniature stainless steel silent bearing body 13. This completes the work of detecting the miniature stainless steel silent bearing body 13. Furthermore, the bracket 11 can support the detection motor 12, improving its stability during operation.

[0034] This step, through the setting of the detection components, allows for the application of dynamically adjustable load detection to the miniature stainless steel silent bearing body 13 during actual operation, thereby reproducing the combined pressure it withstands in real application scenarios. Furthermore, by adjusting the load point position in real time, the uniformity of stress distribution and fatigue strength of the miniature stainless steel silent bearing body 13 under stress at different positions can be evaluated. This enables the detection of the miniature stainless steel silent bearing body 13's ability to operate stably for a long time under complex working conditions, and assesses its reliability and service life.

[0035] Example 2

[0036] like Figures 1-4 As shown, the limiting mechanism includes a rectangular slide bar 5 and a rectangular slide groove 51. The top of the rectangular slide bar 5 is fixed to the bottom of the hollow threaded sleeve 4, and the rectangular slide groove 51 is opened in the middle of the detection platform 1.

[0037] The bottom of the rectangular slide bar 5 is slidably connected to the middle of the rectangular slide groove 51.

[0038] The bottom sides of the rectangular slide bar 5 are in contact with the sides of the rectangular slide groove 51.

[0039] During operation, when the hollow threaded sleeve 4 moves, it will drive the rectangular slide bar 5 to move synchronously. Since the bottom of the rectangular slide bar 5 slides in the middle of the rectangular slide groove 51, and the two sides of the bottom of the rectangular slide bar 5 are in contact with the two sides of the rectangular slide groove 51, the movement of the rectangular slide bar 5 is restricted by the rectangular slide groove 51, thereby changing the movement trajectory of the rectangular slide bar 5, so that the rectangular slide bar 5, the hollow threaded sleeve 4 and the cross bar 41 move synchronously in a straight line.

[0040] This step, through the setting of the limiting mechanism, can change the movement trajectory of the hollow threaded sleeve 4 and the crossbar 41, thereby causing the counterweight block 22 and the load slider 21 to slide in a straight line, thus improving the stability and reliability of the dynamic adjustment of the load point when the detection component is working.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for testing the service life of a miniature stainless steel silent bearing under high strength, comprising a testing platform (1), characterized in that: The top surface of the testing platform (1) is fixedly connected to a bracket (11), a testing motor (12) is installed on the top of the bracket (11), a miniature stainless steel silent bearing body (13) is installed at the output end of the testing motor (12), and a testing component is provided on the top surface of the testing platform (1). The detection assembly includes two sets of support plates (2), a load-bearing slider (21), a counterweight (22), a first pulley (23), a reciprocating screw (3), a second pulley (31), a transmission belt (32), a hollow threaded sleeve (4), and two sets of crossbars (41). Both support plates (2) are fixed to the center of the top surface of the detection platform (1). The load-bearing slider (21) is slidably connected to the center of the miniature stainless steel silent bearing body (13). The counterweight (22) is fixed to the bottom of the load-bearing slider (21). The first pulley (23) is mounted on the detection motor (12). At the output end, the two ends of the reciprocating screw (3) are rotatably connected to one side of the middle of the support plate (2). The second pulley (31) is installed at one end of the reciprocating screw (3) near the output end of the detection motor (12). The two ends of the transmission belt (32) are respectively sleeved on the middle of the first pulley (23) and the second pulley (31). The hollow threaded sleeve (4) is threadedly connected to the middle of the reciprocating screw (3). One end of each of the two crossbars (41) is fixed to the side of the hollow threaded sleeve (4) near the load slider (21). A limit mechanism is provided at the bottom of the hollow threaded sleeve (4).

2. The device for testing the service life of a miniature stainless steel silent bearing under high strength according to claim 1, characterized in that: The top of each support plate (2) is provided with a semi-circular groove adapted to the miniature stainless steel silent bearing body (13).

3. The device for testing the service life of a miniature stainless steel silent bearing under high strength according to claim 1, characterized in that: The limiting mechanism includes a rectangular slide bar (5) and a rectangular slide groove (51). The top of the rectangular slide bar (5) is fixed to the bottom of the hollow threaded sleeve (4), and the rectangular slide groove (51) is opened in the middle of the detection platform (1).

4. The device for testing the service life of a miniature stainless steel silent bearing under high strength according to claim 3, characterized in that: The bottom of the rectangular slide bar (5) is slidably connected to the middle of the rectangular slide groove (51).

5. The device for testing the service life of a miniature stainless steel silent bearing under high strength according to claim 4, characterized in that: The bottom sides of the rectangular slide bar (5) are in contact with the sides of the rectangular slide groove (51).

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