Bearing strength testing device

Abstract

The utility model discloses a bearing strength testing device, and relates to the technical field of bearing testing, the bearing strength testing device comprises a detection table, one side of the upper end of the detection table is fixedly connected with a mounting rack, the lower side of the mounting rack is provided with a detection assembly, and one side, located on the mounting rack, of the detection table is fixedly connected with a placing table. By adopting the structure, the placing table is fixed on the detection table, the object placing groove is formed in the placing table, the accommodating groove is formed in the object placing groove, the mounting column is movably arranged in the accommodating groove, the first driving assembly on the placing table is utilized to drive the mounting column to move upwards and extend out of the accommodating groove, and at the moment, the bearing is sleeved on the mounting column, so that the bearing is placed in the object placing groove; according to the bearing strength detection device, a guide function is achieved, the placement position of the bearing does not need to be frequently adjusted, the roller in the detection assembly can accurately contact with the inner ring of the bearing, the accurate contact can reduce measurement errors caused by position deviation, and the accuracy of bearing strength detection is improved.

Description

Technical Field

[0001] This utility model belongs to the field of bearing testing technology, and in particular relates to a bearing strength testing device. Background Technology

[0002] Bearing strength testing equipment is an important tool for evaluating bearing quality and reliability. It assesses key indicators such as bearing load capacity, durability, and fatigue life. These test results provide important reference for bearing design, manufacturing, and use, and help ensure bearing quality and reliability.

[0003] For example, Chinese patent CN219777372U discloses a bearing forging strength testing device. By moving the testing base to the center of the annular forging, the electric hydraulic rod is extended, causing a sleeve to move downwards. During this downward movement, three connecting rods press three sliding pillars, causing them to move away from each other. The sliding pillars, through pressure sensors, drive rollers to make close contact with the inner wall of the forging. Once the applied pressure reaches a preset value, the electric hydraulic rod stops working, and the motor starts operating. The motor drives a driven gear to rotate via a drive gear, which in turn drives a connecting shaft and the testing base to rotate via a fixed shaft. The testing base, through the three sliding pillars, drives three rollers to roll on the inner wall of the forging. Pressure sensors monitor the pressure value in real time. By applying pressure to the forging through the rotating rollers, the pressure range on the inner wall of the forging is unrestricted, and the testing area is comprehensive, ensuring the accuracy of the bearing forging strength test.

[0004] While the aforementioned patent addresses the issue that applying pressure to bearing forgings at multiple points during inspection limits the inspection area, leading to incomplete testing and potential omissions, the strength testing device still has some shortcomings that require improvement. The bearings placed on the support frame require adjustment, but the lack of a proper guiding structure makes it difficult to accurately adjust their position. This prevents the rollers in the testing assembly from precisely contacting the bearing's inner ring, thus hindering testing efficiency and impeding the bearing strength testing process. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a bearing strength testing device to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A bearing strength testing device includes a testing platform. A mounting frame is fixedly connected to one side of the upper end of the testing platform. A testing component is provided on the lower side of the mounting frame. A placement platform is fixedly connected to one side of the testing platform on the mounting frame. A storage slot is provided inside the placement platform. A first driving component is provided on one side of the placement platform. A mounting column is movably connected inside the storage slot through the first driving component. An assembly frame is fixedly connected to one end of the placement platform. Positioning components are provided on both sides of the placement platform. A second driving component is provided on one side of the assembly frame.

[0008] As a preferred technical solution, the first driving component includes a first motor, which is fixedly connected to the end of the placement platform away from the assembly frame. The storage slot is rotatably connected to a first lead screw, and the mounting column is threadedly connected to the first lead screw.

[0009] As a preferred technical solution, the output end of the first motor is fixedly connected to a first shaft, a first toothed bevel is fixedly connected to one side of the first shaft, the first toothed bevel is meshed with a second toothed bevel, a second shaft is fixedly connected to one side of the second toothed bevel, the first shaft and the second shaft are both rotatably connected inside the placement platform, and one end of the second shaft is fixedly connected to one end of the first lead screw.

[0010] As a preferred technical solution, a limiting groove is provided on both sides of the inside of the storage slot, and a limiting block is slidably connected inside the limiting groove. One end of the limiting block is fixedly connected to one end of the mounting column.

[0011] As a preferred technical solution, the positioning component includes a transmission rod, which is slidably connected to the placement platform. One end of the transmission rod extending into the placement slot is fixedly connected to a positioning block, and the other end of the transmission rod away from the positioning block is fixedly connected to a transmission plate.

[0012] As a preferred technical solution, the second drive assembly includes a second motor, which is fixedly connected to one end of the assembly frame. The output end of the second motor is fixedly connected to a second lead screw, which is rotatably connected inside the assembly frame. The threads on both sides of the second lead screw are arranged in opposite directions. A screw block is threadedly connected to the outer surface of the second lead screw. The screw block is slidably connected to the assembly frame, and one end of the screw block is fixedly connected to one end of the transmission plate.

[0013] As a preferred technical solution, a cylinder is fixedly connected to the top of the mounting bracket, a lifting plate is fixedly connected to the output end of the cylinder, and the detection component is mounted on the lifting plate.

[0014] In summary, the present invention has the following main advantages:

[0015] First, this utility model uses a fixed placement platform on a testing table. The placement platform has a placement groove, and the placement groove has a storage slot. A movable mounting column is located in the storage slot. The first drive component on the placement platform drives the mounting column to move upward and extend out of the storage slot. At this time, the bearing is placed on the mounting column, so that the bearing is placed in the placement slot, which plays a guiding role. It is not necessary to frequently adjust the placement position of the bearing. This allows the roller in the testing component to accurately contact the inner ring of the bearing. This precise contact can reduce the measurement error caused by position deviation and improve the accuracy of bearing strength testing.

[0016] Secondly, this utility model, by providing a positioning component and a second driving component on the placement platform, after the bearing is fitted onto the mounting column, uses the second driving component to drive the positioning component to move and fix the bearing, preventing the subsequent movement of the bearing caused by the mounting column being retracted into the storage groove, which would lead to a displacement of the bearing position. When the roller in the detection mechanism extends into the inner ring of the bearing, the second driving component drives the positioning block in the positioning component away from the bearing, at which point the bearing detection work can be carried out, ensuring the smooth progress of the bearing detection work. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the positioning component and the second driving component of this utility model;

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is a partial structural diagram of the first drive component of this utility model.

[0021] Reference numerals: 1. Testing table; 2. Mounting frame; 3. Testing component; 4. Placement table; 5. Storage slot; 6. Mounting column; 7. Storage slot; 8. First drive component; 81. First motor; 82. First shaft; 83. First toothed bevel; 84. Second toothed bevel; 85. Second shaft; 86. First lead screw; 9. Limiting slot; 10. Limiting block; 11. Assembly frame; 12. Positioning component; 121. Transmission rod; 122. Positioning block; 123. Transmission plate; 13. Second drive component; 131. Second motor; 132. Second lead screw; 133. Screw block; 15. Cylinder; 16. Lifting plate. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 4The bearing strength testing device described in this embodiment includes a testing platform 1. A mounting frame 2 is fixedly connected to one side of the upper end of the testing platform 1. A testing component 3 is provided on the lower side of the mounting frame 2. The testing component 3 includes a strength tester, a pressure sensor, rollers, etc., which is the testing structure described in the referenced document and can perform pressure testing on the bearing. Since it is prior art, it will not be described again here. A placement platform 4 is fixedly connected to one side of the mounting frame 2 on the testing platform 1. A storage slot 5 is opened inside the placement platform 4, and a receiving slot 7 is opened inside the storage slot 5. A first drive component 8 is provided on one side of the placement platform 4. A mounting column 6 is movably connected to the receiving slot 7 through the first drive component 8. An assembly frame 11 is fixedly connected to one end of the placement platform 4. Positioning components 12 are provided on both sides of the placement platform 4. A second drive component 13 is provided on one side of the assembly frame 11. With the above settings, the adjustment process becomes fast and simple, which can significantly shorten the preparation time, speed up the testing process, thereby improving the overall testing efficiency, reducing the skill requirements for operators, reducing equipment damage caused by improper operation, and reducing the overall cost.

[0024] refer to Figure 3-4 The first drive assembly 8 includes a first motor 81, which is fixedly connected to the end of the placement platform 4 away from the assembly frame 11. A first lead screw 86 is rotatably connected inside the storage slot 7. A mounting post 6 is threaded onto the first lead screw 86. A first shaft 82 is fixedly connected to the output end of the first motor 81. A first toothed bevel 83 is fixedly connected to one side of the first shaft 82. A second toothed bevel 84 is meshed with the first toothed bevel 83. A second shaft 85 is fixedly connected to one side of the second toothed bevel 84. The first shaft 82 and the second shaft 85... 5 are rotatably connected inside the placement platform 4, and one end of the second shaft 85 is fixedly connected to one end of the first lead screw 86; by setting the first drive assembly 8, when it is necessary for the mounting column 6 to slide in the storage groove 7, the first motor 81 drives the first shaft 82 to rotate, the first shaft 82 drives the first toothed cone 83 to rotate, the first toothed cone 83 drives the second toothed cone 84 to rotate, and the second toothed cone 84 drives the second shaft 85 to rotate, thereby driving the mounting column 6 to slide in the storage groove 7 and extend into the placement groove 5 to guide the placement of the bearing.

[0025] refer to Figure 3 The storage groove 7 has limit grooves 9 on both sides inside, and limit blocks 10 are slidably connected inside the limit grooves 9. One end of the limit block 10 is fixedly connected to one end of the mounting column 6. By opening limit grooves 9 on both sides of the storage groove 7 and fixing limit blocks 10 on both sides of the mounting column 6, the sliding position of the mounting column 6 can be restricted, and the mounting column 6 can be prevented from leaving the storage groove 7.

[0026] refer to Figure 2The positioning assembly 12 includes a transmission rod 121, which is slidably connected to the placement platform 4. A positioning block 122 is fixedly connected to one end of the transmission rod 121 that extends into the placement slot 5, and a transmission plate 123 is fixedly connected to the other end of the transmission rod 121 away from the positioning block 122. The second drive assembly 13 includes a second motor 131, which is fixedly connected to one end of the assembly frame 11. A second lead screw 132 is fixedly connected to the output end of the second motor 131. The second lead screw 132 is rotatably connected inside the assembly frame 11, and the threads on both sides of the second lead screw 132 are oppositely arranged. A screw block 133 is threadedly connected to the outer surface of the second lead screw 132. Block 133 is slidably connected to the assembly frame 11, and one end of the screw block 133 is fixedly connected to one end of the transmission plate 123. By setting the positioning component 12, the transmission plate 123 moves under the action of the second drive component 13, so that the transmission plate 123 drives the transmission rod 121 to move, and the transmission rod 121 drives the positioning block 122 to move and contact the bearing, thereby stabilizing the position of the bearing and preventing the bearing from moving after the mounting column 6 retracts. By setting the second drive component 13, the second motor 131 drives the second lead screw 132 to rotate, so that the two screw blocks 133 on the second lead screw 132 move relative to each other, so that the screw blocks 133 drive the positioning component 12 to move and fix the bearing.

[0027] refer to Figure 1 A cylinder 15 is fixedly connected to the top of the mounting frame 2, and a lifting plate 16 is fixedly connected to the output end of the cylinder 15. The detection component 3 is installed on the lifting plate 16. By fixing the cylinder 15 on the mounting frame 2, connecting the cylinder 15 to the lifting plate 16, and installing the detection component 3 on the lifting plate 16, the position of the detection component 3 can be adjusted to facilitate the testing of the bearing.

[0028] Operating principle and advantages: The first motor 81 drives the first shaft 82 to rotate, the first shaft 82 drives the first toothed bevel 83 to rotate, the first toothed bevel 83 drives the second toothed bevel 84 to rotate, the second toothed bevel 84 drives the second shaft 85 to rotate, and the second shaft 85 drives the first lead screw 86 to rotate, causing the mounting post 6 on the first lead screw 86 to slide in the receiving groove 7. At the same time, the limiting block 10 slides in the limiting groove 9 to limit the sliding position of the mounting post 6. After the mounting post 6 extends into the storage groove 5, the bearing to be tested is placed on the mounting post 6. Then, the first bearing on the assembly frame 11... The second motor 131 drives the second lead screw 132 to rotate, causing the two screw blocks 133 on the second lead screw 132 to move relative to each other. The screw blocks 133 drive the transmission plate 123 to move, which in turn drives the transmission rod 121 to move. The transmission rod 121 drives the positioning block 122 to move and contact the bearing, fixing the bearing in place. Then, the cylinder 15 drives the lifting plate 16 to move the roller in the detection assembly 3 into the bearing. Finally, the second drive assembly 13 drives the positioning assembly 12 to leave the bearing, thus enabling the bearing strength test and improving the accuracy of the bearing strength test.

Claims

1. A bearing strength testing device, comprising a testing platform (1), characterized in that: A mounting bracket (2) is fixedly connected to one side of the upper end of the testing platform (1). A testing component (3) is provided on the lower side of the mounting bracket (2). A placement platform (4) is fixedly connected to one side of the testing platform (1) located on the mounting bracket (2). A storage slot (5) is provided inside the placement platform (4). A storage slot (7) is provided inside the storage slot (5). A first driving component (8) is provided on one side of the placement platform (4). An installation column (6) is movably connected inside the storage slot (7) through the first driving component (8). An assembly frame (11) is fixedly connected to one end of the placement platform (4). Positioning components (12) are provided on both sides of the placement platform (4). A second driving component (13) is provided on one side of the assembly frame (11).

2. The bearing strength testing device according to claim 1, characterized in that: The first drive assembly (8) includes a first motor (81), which is fixedly connected to one end of the placement platform (4) away from the assembly frame (11). The storage slot (7) is rotatably connected to a first lead screw (86), and the mounting post (6) is threadedly connected to the first lead screw (86).

3. The bearing strength testing device according to claim 2, characterized in that: The output end of the first motor (81) is fixedly connected to a first shaft (82), a first toothed bevel (83) is fixedly connected to one side of the first shaft (82), the first toothed bevel (83) is meshed with a second toothed bevel (84), a second shaft (85) is fixedly connected to one side of the second toothed bevel (84), the first shaft (82) and the second shaft (85) are both rotatably connected inside the placement platform (4), and one end of the second shaft (85) is fixedly connected to one end of the first lead screw (86).

4. The bearing strength testing device according to claim 1, characterized in that: The storage slot (7) has a limiting slot (9) on both sides inside. A limiting block (10) is slidably connected inside the limiting slot (9). One end of the limiting block (10) is fixedly connected to one end of the mounting column (6).

5. The bearing strength testing device according to claim 1, characterized in that: The positioning component (12) includes a transmission rod (121), which is slidably connected to the placement platform (4). One end of the transmission rod (121) extending into the placement slot (5) is fixedly connected to a positioning block (122), and the other end of the transmission rod (121) away from the positioning block (122) is fixedly connected to a transmission plate (123).

6. The bearing strength testing device according to claim 5, characterized in that: The second drive assembly (13) includes a second motor (131), which is fixedly connected to one end of the assembly frame (11). The output end of the second motor (131) is fixedly connected to a second lead screw (132), which is rotatably connected inside the assembly frame (11). The threads on both sides of the second lead screw (132) are arranged in opposite directions. A screw block (133) is threadedly connected to the outer surface of the second lead screw (132). The screw block (133) is slidably connected to the assembly frame (11), and one end of the screw block (133) is fixedly connected to one end of the transmission plate (123).

7. The bearing strength testing device according to claim 1, characterized in that: A cylinder (15) is fixedly connected to the top of the mounting bracket (2), and a lifting plate (16) is fixedly connected to the output end of the cylinder (15). The detection component (3) is installed on the lifting plate (16).

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