Roll shaft sleeve hardness detection device for steel mill
By designing a roller sleeve hardness testing device that includes a base plate, a lead screw, and a motor drive, the problem of unstable fixing of the roller sleeve during testing was solved, and efficient and accurate hardness testing was achieved.
Patent Information
- Application Number
- CN202423250900.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing roller sleeve hardness testing devices are difficult to effectively fix the roller sleeve, resulting in inaccurate test results and long testing time.
A hardness testing device comprising a base plate, a lead screw, a fixed plate, and a motor drive was designed. Through the cooperation of the lead screw and the motor, the roller bushing is fixed and multi-point testing is achieved, reducing swaying and positional deviation, and improving testing accuracy and efficiency.
It effectively fixes the roller bushing, reduces swaying and positional deviation, improves the accuracy of detection data and work efficiency, and reduces the difficulty of operation and labor intensity.
Smart Images

Figure CN223742223U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of roller sleeve hardness testing technology, specifically a roller sleeve hardness testing device for steel plants. Background Technology
[0002] A roller bushing is a component used in mechanical transmission systems. It is usually installed on the outside of a roller shaft to protect the roller shaft, reduce wear, and improve transmission efficiency. During the production of roller bushings, hardness testing is often required. Hardness is the ability of a material to resist local deformation. For roller bushings, appropriate hardness can ensure that they will not deform under pressure during use, thus affecting their normal operation.
[0003] Existing roller sleeve hardness testing devices are difficult to use because the roller sleeves are prone to movement or shaking during hardness testing, resulting in inaccurate test results and requiring a lot of time, thus affecting work efficiency.
[0004] Therefore, this utility model provides a hardness testing device for roller sleeves used in steel plants. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The steel mill roller sleeve hardness testing device of this utility model includes a base plate. The top of the base plate has multiple grooves arranged in a circumferential array. Two first support seats are fixed inside the grooves and are symmetrically arranged. A first lead screw is rotatably connected inside the first support seat. An adjustment handle is fixed to the end of the first lead screw. A first connecting block is threaded to the middle of the first lead screw. A fixing plate is fixed to the top of the first connecting block. A placement platform is fixed to the top of the base plate. A rotating assembly is fixed to the bottom of the base plate. A testing assembly is fixed to the side wall of the rotating assembly. Through the above structure, the roller sleeve can be effectively fixed, reducing the movement or shaking of the roller sleeve during hardness testing, thereby improving the accuracy and reliability of the test data.
[0007] Preferably, the detection assembly includes a support platform, a bracket fixed to the top of the support platform, a first motor fixed to the top of the bracket, and two second connecting seats fixed inside the bracket. The two second connecting seats are symmetrically arranged, and a second lead screw is rotatably connected inside the second connecting seat. The second lead screw is connected to the output end of the first motor, and a second connecting block is threaded to the middle of the second lead screw. An electric actuator is fixed to the side wall of the second connecting block, and a hardness tester is fixed to the end of the electric actuator. With the above structure, the hardness tester can be effectively driven to detect the hardness of different positions of the roller sleeve, effectively improving the accuracy of the detection results.
[0008] Preferably, the rotating assembly includes a housing, a fixed frame is fixedly connected inside the housing, a second motor is fixedly connected inside the fixed frame, a bearing seat is fixedly connected to the top of the housing, and a rotating shaft is rotatably connected inside the bearing seat and connected to the output end of the second motor. With the above structure, the roller sleeve can be rotated, which facilitates the angle adjustment of the roller sleeve, thereby enabling the hardness tester to perform multi-point testing on the side wall of the roller sleeve.
[0009] Preferably, a slide rail is fixed to the top of the housing, and multiple sliders are slidably connected inside the slide rail. The sliders are distributed in a circumferential array, and a support rod is fixed to the middle of each slider. The support rod is fixed to the bottom of the base plate. Through the above structure, the base plate can be effectively supported, reducing the shaking of the base plate during roller sleeve detection.
[0010] Preferably, a limiting rod is fixed to the top of the placement platform, and the limiting rod is located at the center of the placement platform. With the above structure, the positional deviation of the roller sleeve can be effectively reduced, keeping it as close to the center of the placement platform as possible, thereby reducing the impact on the test results.
[0011] Preferably, a first protective pad is adhered to the side wall of the fixing plate. The first protective pad is made of rubber. Through the above structure, the friction between the fixing plate and the roller sleeve can be increased, so that the fixing plate can better fix the roller sleeve.
[0012] Preferably, a second protective pad is fixed to the top of the placement platform. The second protective pad is made of rubber. Through the above structure, the roller sleeve can directly contact the second protective pad, which effectively reduces the wear of the roller sleeve.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The steel mill roller sleeve hardness testing device of this utility model has a structure in which the screw is rotated by setting an adjustment handle, thereby driving the fixed plate on the first connecting block to move. This structure can effectively fix the roller sleeve, reduce the movement or shaking of the roller sleeve during the hardness testing process, and thus improve the accuracy and reliability of the test data.
[0015] 2. The steel mill roller sleeve hardness testing device of this utility model, which drives the second lead screw to rotate through the first motor, thereby driving the hardness tester to move up and down, can effectively drive the hardness tester to test the hardness at different positions of the roller sleeve, effectively improving the accuracy of the test results and also improving the testing efficiency. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a sectional view of the base plate in this utility model;
[0019] Figure 3 This is a sectional view of the box body in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the second lead screw in this utility model.
[0021] In the diagram: 1. Base plate; 11. Groove; 12. First support seat; 13. First lead screw; 14. Adjustment handle; 15. First connecting block; 16. Fixing plate; 17. Placement platform; 18. Detection component; 19. Rotation component; 2. Support platform; 21. Bracket; 22. Second connecting seat; 23. Second lead screw; 24. First motor; 25. Second connecting block; 26. Electric actuator; 27. Hardness tester; 3. Box body; 31. Fixing frame; 32. Second motor; 33. Bearing seat; 34. Rotating shaft; 4. Slide rail; 41. Slider; 42. Support rod; 5. Limiting rod; 6. First protective pad; 7. Second protective pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Specific implementation examples are given below.
[0024] like Figure 1 and Figure 2 As shown in the figure, a steel mill roller sleeve hardness testing device according to an embodiment of the present invention includes a base plate 1. Multiple grooves 11 are formed on the top of the base plate 1, arranged in a circumferential array. Two first support seats 12 are fixedly connected inside the grooves 11, and the two first support seats 12 are symmetrically arranged. A first lead screw 13 is rotatably connected inside the first support seat 12. An adjusting handle 14 is fixedly connected to the end of the first lead screw 13. A first connecting block 15 is threadedly connected to the middle of the first lead screw 13. A fixing plate 16 is fixedly connected to the top of the first connecting block 15. A placement platform 17 is fixedly connected to the top of the base plate 1. A rotating assembly 19 is fixedly connected to the bottom of the base plate 1. A testing assembly 18 is fixedly connected to the side wall of the rotating assembly 19. During operation, the roller sleeve is typically cylindrical, and during hardness testing, the roller sleeve is prone to rolling. In addition, the roller sleeve to be tested is inserted into the fixed plate 16. The adjusting handle 14 is rotated, which drives the first lead screw 13 to rotate inside the first support seat 12. When the first lead screw 13 rotates, it drives the first connecting block 15 in its middle to move. The movement of the first connecting block 15 drives the fixed plate 16 to move, and the fixed plate 16 stops when it contacts the roller sleeve. Through the above structure, the roller sleeve can be effectively fixed, reducing the movement or shaking of the roller sleeve during the hardness test, thereby improving the accuracy and reliability of the test data. Fixing the roller sleeve makes the test process more convenient, reduces the operation difficulty caused by the movement or shaking of the roller sleeve, and also reduces the adjustment and repositioning time during the test, thereby improving work efficiency.
[0025] like Figure 1 and Figure 4As shown, the detection assembly 18 includes a support platform 2. A bracket 21 is fixedly connected to the top of the support platform 2. A first motor 24 is fixedly connected to the top of the bracket 21. Two second connecting seats 22 are fixedly connected inside the bracket 21, and the two second connecting seats 22 are symmetrically arranged. A second lead screw 23 is rotatably connected inside the second connecting seat 22, and the second lead screw 23 is connected to the output end of the first motor 24. A second connecting block 25 is threadedly connected to the middle of the second lead screw 23. An electric push rod 26 is fixedly connected to the side wall of the second connecting block 25. A hardness tester 27 is fixedly connected to the end of the electric push rod 26. During operation, when performing hardness testing on the roller sleeve, different positions need to be tested. The first motor 24 drives the second lead screw 23 to rotate inside the second connecting seat 22. While the second lead screw 23 rotates, the second connecting block 25 in its middle part moves, thereby driving the electric push rod 26 and the hardness tester 27 to move up and down. The electric push rod 26 is activated, and the electric push rod 26 pushes the hardness tester 27 to perform hardness testing on the roller sleeve. Through the above structure, the hardness tester 27 can be effectively driven to test the hardness of different positions on the roller sleeve, which can effectively improve the accuracy of the test results. At the same time, it can also reduce the need for manual hand-held testing, reduce the labor intensity of the staff, and improve the efficiency of testing.
[0026] like Figure 3 As shown, the rotating assembly 19 includes a housing 3, with a fixed frame 31 fixed inside the housing 3. A second motor 32 is fixed inside the fixed frame 31. A bearing seat 33 is fixed to the top of the housing 3. A rotating shaft 34 is rotatably connected inside the bearing seat 33 and is connected to the output end of the second motor 32. During operation, the second motor 32 is started, and its output end drives the rotating shaft 34 to rotate inside the bearing seat 33. The rotation of the rotating shaft 34 causes the bottom plate 1 at the top to rotate, thereby rotating the roller sleeve. Through the above structure, the roller sleeve can be rotated, which facilitates the angle adjustment of the roller sleeve. This allows the hardness tester 27 to perform multi-point testing on the side wall of the roller sleeve, effectively improving the accuracy of the test data and the efficiency of the test.
[0027] like Figure 1 and Figure 3 As shown, a slide rail 4 is fixed to the top of the housing 3. Multiple sliders 41 are slidably connected inside the slide rail 4. The sliders 41 are distributed in a circular array. A support rod 42 is fixed to the middle of the sliders 41. The support rod 42 is fixed to the bottom of the base plate 1. During operation, when the first motor 24 drives the base plate 1 to rotate, the sliders 41 at the bottom of the base plate 1 slide inside the slide rail 4. The support rod 42 supports the base plate 1. Through the above structure, the base plate 1 can be effectively supported, reducing the shaking of the base plate 1 during roller sleeve detection, effectively enhancing the stability of the base plate 1, and improving the overall structural strength of the device.
[0028] like Figure 1 As shown, a limiting rod 5 is fixed to the top of the placement platform 17. The limiting rod 5 is located at the center of the placement platform 17. During operation, when the roller sleeve is inserted into the fixing plate 16, the position of the roller sleeve may shift, which may affect the hardness tester 27's detection of the roller sleeve. By setting the limiting rod 5 at the top of the placement platform 17, the position of the roller sleeve can be adjusted according to the position of the limiting rod 5 when fixing it. Through the above structure, the positional shift of the roller sleeve can be effectively reduced, keeping it as close as possible to the center of the placement platform 17, thereby reducing the impact on the test results.
[0029] like Figure 2 As shown, a first protective pad 6 is bonded to the side wall of the fixing plate 16. The first protective pad 6 is made of rubber. During operation, the first protective pad 6 is set on the side wall of the fixing plate 16. The first protective pad 6 is made of rubber and is in direct contact with the roller sleeve. Through the above structure, the friction between the fixing plate 16 and the roller sleeve can be increased, so that the fixing plate 16 can better fix the roller sleeve. At the same time, the material of the fixing plate 16 is relatively soft, which can protect the roller sleeve and reduce its wear.
[0030] like Figure 1 As shown, a second protective pad 7 is fixed to the top of the placement platform 17. The second protective pad 7 is made of rubber. During operation, the second protective pad 7 is set on the top of the placement platform 17. The second protective pad 7 is made of rubber and has excellent elasticity. Through the above structure, the roller sleeve can directly contact the second protective pad 7, which effectively reduces the wear of the roller sleeve.
[0031] During operation, the roller sleeve is typically cylindrical. When performing hardness testing, the roller sleeve is prone to rolling, leading to inaccurate results. To address this, the roller sleeve is inserted into the fixed plate 16. Rotating the adjusting handle 14 causes the first lead screw 13 to rotate inside the first support seat 12. This rotation moves the first connecting block 15, which in turn moves the fixed plate 16 until it contacts the roller sleeve. This structure effectively secures the roller sleeve, reducing movement or wobbling during hardness testing, thus improving the accuracy and reliability of the test data. Fixing the roller sleeve also makes the testing process more efficient. This design is convenient, reducing operational difficulties caused by roller sleeve movement or wobbling, and also reducing adjustment and repositioning time during the testing process, thereby improving work efficiency. When testing the hardness of the roller sleeve, different positions need to be tested. The first motor 24 is started, driving the second lead screw 23 to rotate inside the second connecting seat 22. Simultaneously, the second connecting block 25 in the middle of the lead screw 23 moves, thereby driving the electric push rod 26 and hardness tester 27 to move up and down. The electric push rod 26 is then started, pushing the hardness tester 27 to test the hardness of the roller sleeve. Through this structure, the hardness tester 27 can be effectively driven to test the hardness of different positions on the roller sleeve, effectively improving testing efficiency. The accuracy of the results is improved, and the need for manual handheld testing is reduced, thus lowering the workload of staff and increasing testing efficiency. The second motor 32 is activated, and its output drives the rotating shaft 34 to rotate inside the bearing seat 33. The rotation of the rotating shaft 34 causes the top base plate 1 to rotate, thereby rotating the roller sleeve. This structure allows the roller sleeve to rotate, facilitating angle adjustment and enabling the hardness tester 27 to perform multi-point testing on the sidewall of the roller sleeve. This effectively improves the accuracy of the test data and increases testing efficiency. When the first motor 24 drives the base plate 1 to rotate, the slider 41 at the bottom of the base plate 1 slides inside the slide rail 4, and the support rod 42 supports the base plate 1. The above structure provides effective support for the base plate 1, reducing wobbling during roller sleeve testing and enhancing its stability. This also improves the overall strength of the device. When the roller sleeve is inserted into the fixed plate 16, its position may shift, affecting the hardness tester 27's testing. A limiting rod 5 is installed at the top of the placement platform 17, allowing adjustment of the roller sleeve's position during fixing. This structure effectively reduces roller sleeve positional shift, keeping it as centered as possible on the placement platform 17, thus minimizing the impact on test results. A first protective pad 6, made of rubber, is installed on the side wall of the fixed plate 16.The first protective pad 6 is in direct contact with the roller sleeve. This structure increases the friction between the fixing plate 16 and the roller sleeve, improving the fixing effect of the fixing plate 16 on the roller sleeve. Simultaneously, the relatively soft material of the fixing plate 16 protects the roller sleeve and reduces wear. A second protective pad 7, made of rubber, is placed on the top of the placement platform 17. This second protective pad 7 has excellent elasticity. Through this structure, the roller sleeve can directly contact the second protective pad 7, effectively reducing wear on the roller sleeve.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hardness detection device for a roll shaft sleeve for a steel mill, characterized by: The utility model provides a kind of bottom plate (1), the top of the bottom plate (1) is provided with multiple recesses (11), the recess (11) is distributed in circumferential array state, the inside of the recess (11) is fixedly connected with two first support seat (12), two the first support seat (12) is symmetrically arranged, the inside of the first support seat (12) is rotatably connected with first screw rod (13), the end of the first screw rod (13) is fixedly connected with adjusting handle (14), the middle part of the first screw rod (13) is threadedly connected with first connecting block (15), the top of the first connecting block (15) is fixedly connected with fixed plate (16), the top of the bottom plate (1) is fixedly connected with placing table (17), the bottom of the bottom plate (1) is fixedly connected with rotating assembly (19), the side wall of the rotating assembly (19) is fixedly connected with detection assembly (18).
2. The hardness detection device for a roller shaft sleeve of a steel plant according to claim 1, characterized in that: The support table (2) is fixedly connected with the bracket (21) on the top, the first motor (24) is fixedly connected with the top of the bracket (21), the two second connecting seats (22) are symmetrically arranged and fixedly connected with the inside of the bracket (21), the second screw rod (23) is rotatably connected with the inside of the second connecting seat (22), and the output end of the first motor (24) is connected with the second screw rod (23), the second connecting block (25) is threadedly connected with the middle part of the second screw rod (23), the side wall of the second connecting block (25) is fixedly connected with the electric push rod (26), and the hardness detection meter (27) is fixedly connected with the end of the electric push rod (26).
3. The hardness detection device for a roller shaft sleeve of a steel plant according to claim 1, characterized in that: The inside of the fixed frame (31) is fixedly connected with the second motor (32) in the box (3) of the rotating assembly (19), the bearing seat (33) is fixedly connected with the top of the box (3), the rotating shaft (34) is rotatably connected with the inside of the bearing seat (33), and the output end of the second motor (32) is connected with the rotating shaft (34).
4. The hardness detection device for a roller shaft sleeve of a steel plant according to claim 3, characterized in that: The top of the box (3) is fixedly connected with the slide rail (4), the inside of the slide rail (4) is slidably connected with multiple sliding blocks (41), the sliding blocks (41) are distributed in circumferential array state, the middle part of the sliding block (41) is fixedly connected with the support rod (42), and the support rod (42) is fixedly connected with the bottom of the bottom plate (1).
5. The hardness detection device for a roller shaft sleeve of a steel plant according to claim 1, characterized in that: The top of the placing table (17) is fixedly connected with the limiting rod (5), and the limiting rod (5) is arranged at the position of the center of the placing table (17).
6. The hardness detection device for a roller shaft sleeve of a steel plant according to claim 1, characterized in that: The side wall of the fixed plate (16) is bonded with the first protective pad (6), and the first protective pad (6) is made of rubber material.
7. The hardness detection device for a roller shaft sleeve of a steel plant according to claim 1, characterized in that: The top of the placing table (17) is fixedly connected with the second protective pad (7), and the second protective pad (7) is made of rubber material.