Cylindrical roller bearing service life detection device convenient to disassemble
By designing an adjustable fixing device, the problem of replacing the circular shaft when detecting bearings of different diameters in the prior art is solved, and rapid fixing and detection of bearings of various sizes is achieved, which improves detection efficiency and flexibility.
Patent Information
- Application Number
- CN202422194046.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-09
AI Technical Summary
Existing cylindrical roller bearing life detection equipment needs to replace the circular shaft when detecting bearings of different diameters, resulting in cumbersome and time-consuming detection steps, affecting the detection efficiency.
A cylindrical roller bearing life detection device is designed for easy disassembly. By providing adjustable fixing devices, including circular plates, circular hole rings, limit frames, bidirectional screws and screw hole rods, it can be adapted to various bearings of different sizes for fixing.
This device reduces the operating steps and time when fixing bearings of different sizes, improves the convenience and efficiency of detecting bearings of different sizes, and facilitates quick disassembly and assembly and maintenance of bearings.
Smart Images
Figure CN222979068U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of testing equipment, and particularly relates to a cylindrical roller bearing life testing device which is convenient to disassemble. Background Art
[0002] The internal structure of a cylindrical roller bearing adopts rollers arranged in parallel, and a spacer retainer or a spacer block is installed between the rollers to prevent the inclination of the rollers or the mutual friction between the rollers, which can effectively prevent the increase of the rotational torque. A bearing life testing machine refers to a device for conducting a rotational fatigue life test on a bearing under a load.
[0003] In the prior art, when a cylindrical roller bearing life testing device is in use, the bearing is mostly sleeved on a round shaft, and then the turntable is driven by a motor to rotate in contact with the bearing, so that the bearing rotates under the drive of the turntable. Subsequently, the number of rotations of the bearing is detected by a rotary encoder, and thus the service life of the bearing is calculated.
[0004] However, in the actual use process, since the same round shaft can only be adapted to fix bearings of the same diameter size, it may be necessary to replace the adapted round shaft when detecting bearings of different diameter sizes, which will cause the detection steps to be cumbersome, time-consuming and laborious, and affect the detection efficiency of the bearings. Content of the Utility Model
[0005] (I) Technical Problems to be Solved
[0006] In order to overcome the above defects of the prior art, the utility model provides a cylindrical roller bearing life testing device which is convenient to disassemble, and solves the problem that since the same round shaft can only be adapted to fix bearings of the same diameter size, it may be necessary to replace the adapted round shaft when detecting bearings of different diameter sizes, which will cause the detection steps to be cumbersome, time-consuming and laborious, and affect the detection efficiency of the bearings.
[0007] (II) Technical Solutions
[0008] To achieve the above object, the present utility model provides the following technical solution: A cylindrical roller bearing life detection device that is easy to disassemble, including a machine body. On one side of the machine body, there is a counter, and on one side of the machine body, there is a motor. The output end of the motor is provided with a turntable. On one side of the machine body, there is a fixing device. The fixing device includes a circular plate. There is a connecting device between the circular plate and the machine body. On one side of the circular plate, there is a circular hole ring fixedly connected. On one side of the circular plate, there are two limiting frames fixedly connected. Both of the two limiting frames are located inside the circular hole ring. The inner walls of the two limiting frames are rotatably connected with a bidirectional screw rod. The thread shapes on the surface of the bidirectional screw rod are arranged symmetrically in opposite directions. The bidirectional screw rod is located inside the circular hole ring. On the surface of the bidirectional screw rod, there are two screw hole rods symmetrically threadedly connected. Both of the two screw hole rods are slidably connected with the inner wall of the circular hole ring. One end of each of the two screw hole rods is fixedly connected with a pressing plate. In the middle of the bidirectional screw rod, there is an operating block fixedly connected. The operating block is located between the two limiting frames.
[0009] As a further scheme of the present utility model: The surface of the operating block is fixedly connected with a plurality of anti-slip strips, and the plurality of anti-slip strips are arranged at equal distances.
[0010] As a further scheme of the present utility model: On one side of each of the two pressing plates, there are a plurality of rubber strips fixedly connected, and the cross-section of the rubber strips is arc-shaped.
[0011] As a further scheme of the present utility model: On one side of each of the two screw hole rods, there is a limiting block fixedly connected. On the surface of the circular hole ring, there are two limiting grooves symmetrically opened. The surfaces of the two limiting blocks are respectively slidably connected with the inner walls of the two limiting grooves.
[0012] As a further scheme of the present utility model: The connecting device includes a circular hole column, which is fixedly connected with the machine body. The inner wall of the circular hole column is slidably inserted with a plug pin. On one side of the circular hole column, there is a card slot. On one side of the circular plate, there is a circular hole rod fixedly connected. The surface of the circular hole rod is slidably inserted with the inner wall of the card slot. The size and shape of the surface of the plug pin are adapted to the size and shape of the inner wall of the circular hole rod. On one side of the circular hole rod, there is a positioning block fixedly connected. In the inner wall of the card slot, there is a positioning groove. The surface of the positioning block is slidably inserted with the inner wall of the positioning groove.
[0013] As a further scheme of the present utility model: One end of the plug pin is fixedly connected with an auxiliary rod, and the surface of the auxiliary rod is provided with a plurality of protrusions.
[0014] As a further scheme of the present utility model: The end of the plug pin away from the auxiliary rod is fixedly connected with a leather sleeve, and the leather sleeve is sleeved on the surface of the plug pin.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0017] 1. For this cylindrical roller bearing life detection device, by setting the fixing device, it can be adapted to fix bearings of various different sizes, reducing the operation steps and required time for personnel to fix bearings of different sizes, and improving the convenience and efficiency of personnel in detecting bearings of different sizes.
[0018] 2. For this cylindrical roller bearing life detection device, by setting the fixing device, it can improve the convenience of personnel in fixing bearings of various different sizes, enhance the flexibility of fixing bearings of different sizes, and at the same time facilitate the quick disassembly and assembly of the bearings.
[0019] 3. For this cylindrical roller bearing life detection device, by setting the connecting device, the fixing device can be conveniently disassembled and assembled with the machine body, improving the flexibility of use of the fixing device and the convenience of later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0021] Figure 2 is a structural schematic diagram of the pressing plate of the present utility model;
[0022] Figure 3 is a structural schematic diagram of the circular hole ring of the present utility model;
[0023] Figure 4 is a structural schematic diagram of the circular hole column of the present utility model.
[0024] In the figure: 1. Machine body; 2. Counter; 3. Motor; 4. Turntable; 5. Fixing device; 51. Circular plate; 52. Circular hole ring; 53. Limiting frame; 54. Limiting groove; 55. Bidirectional screw; 56. Operating block; 57. Anti-slip strip; 58. Screw hole rod; 59. Pressing plate; 510. Rubber strip; 511. Limiting block; 6. Connecting device; 61. Circular hole column; 62. Plug; 63. Auxiliary rod; 64. Leather sleeve; 65. Card slot; 66. Positioning groove; 67. Circular hole rod; 68. Positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.
[0026] Such as Figures 1-4As shown in the figure, the utility model provides a technical solution: a cylindrical roller bearing life detection device that is easy to disassemble, including a machine body 1. A counter 2 is arranged on one side of the machine body 1, and a motor 3 is arranged on one side of the machine body 1. A turntable 4 is provided at the output end of the motor 3. A fixing device 5 is arranged on one side of the machine body 1. The fixing device 5 includes a circular plate 51. A connecting device 6 is arranged between the circular plate 51 and the machine body 1. A circular hole ring 52 is fixedly connected to one side of the circular plate 51. Two limiting frames 53 are fixedly connected to one side of the circular plate 51. Both of the two limiting frames 53 are located inside the circular hole ring 52. A bidirectional screw 55 is rotatably connected to the inner walls of the two limiting frames 53. The thread shapes on the surface of the bidirectional screw 55 are arranged in opposite symmetry. The bidirectional screw 55 is located inside the circular hole ring 52. Two screw hole rods 58 are symmetrically threadedly connected to the surface of the bidirectional screw 55. Both of the two screw hole rods 58 are slidably connected to the inner wall of the circular hole ring 52. One end of each of the two screw hole rods 58 is fixedly connected to a pressing plate 59. An operating block 56 is fixedly connected to the middle of the bidirectional screw 55. The operating block 56 is located between the two limiting frames 53. By setting the fixing device 5, first manually put the bearing on the surface of the circular hole ring 52, so that the two pressing plates 59 are located inside the inner ring of the bearing. At this time, manually rotate the operating block 56, so that the operating block 56 drives the bidirectional screw 55 to rotate, so that the bidirectional screw 55 drives the two screw hole rods 58 to move towards each other, so that the two screw hole rods 58 drive the two pressing plates 59 to move towards each other. When the two pressing plates 59 move towards each other to simultaneously squeeze the inner ring of the bearing, the position fixing of the bearing is completed, enabling personnel to clamp and fix bearings of different sizes through the position movement of the two pressing plates 59, making it adaptable to fix various bearings of different sizes, reducing the operation steps and time required for personnel to fix bearings of different sizes, and improving the convenience and efficiency of personnel in detecting bearings of different sizes.
[0027] Specifically, as Figure 2 and Figure 3 shown, a plurality of anti-slip strips 57 are fixedly connected to the surface of the operating block 56. The plurality of anti-slip strips 57 are arranged at equal distances. By setting the anti-slip strips 57, the anti-slip strips 57 can increase the friction between the hand and the surface of the operating block 56, reducing the situation of hand slipping when personnel manually rotate the operating block 56. A plurality of rubber strips 510 are fixedly connected to one side of each of the two pressing plates 59. The cross-section of the rubber strip 510 is arc-shaped. By setting the rubber strips 510, the rubber strips 510 can separate the pressing plate 59 from the inner ring of the bearing, reducing the wear of the inner ring of the bearing caused by the pressing plate 59 when pressing the bearing. A limiting block 511 is fixedly connected to one side of each of the two screw hole rods 58. Two limiting grooves 54 are symmetrically opened on the surface of the circular hole ring 52. The surfaces of the two limiting blocks 511 are respectively slidably connected to the inner walls of the two limiting grooves 54. By setting the limiting block 511 and the limiting groove 54, the limiting block 511 can be located inside the limiting groove 54 to assist in limiting the screw hole rod 58, reducing the situation of rotation or shaking of the screw hole rod 58 during movement.
[0028] Specifically, Figure 3 and Figure 4 As shown, the connecting device 6 includes a round hole column 61, which is fixedly connected to the body 1, and the inner wall of the round hole column 61 is slidably connected with a latch 62, a slot 65 is provided on one side of the round hole column 61, and a round hole rod 67 is fixedly connected to one side of the circular plate 51, and the surface of the round hole rod 67 is slidably connected to the inner wall of the slot 65, and the surface size and shape of the latch 62 are adapted to the size and shape of the inner wall of the round hole rod 67, and a positioning block 68 is fixedly connected to one side of the round hole rod 67, and a positioning groove 66 is provided on the inner wall of the slot 65, and the surface of the positioning block 68 is slidably connected to the inner wall of the positioning groove 66. By setting the connecting device 6, first manually move the circular plate 51. 1, so that the circular plate 51 drives the round hole rod 67 to move, so that the round hole rod 67 drives the positioning block 68 to move, when the round hole rod 67 moves to the position completely inserted into the internal slot 65, the positioning block 68 is inserted into the internal positioning slot 66, so that the inner wall of the round hole rod 67 coincides with the inner wall of the round hole column 61, and at this time, the latch 62 is manually moved, so that the latch 62 moves to insert into the internal of the round hole column 61 and the round hole rod 67 to fix the position of the round hole rod 67 and the circular plate 51, thereby completing the rapid assembly of the fixing device 5 and the body 1, and at the same time, the fixing device 5 can be quickly disassembled in the later stage, which improves the use flexibility of the fixing device 5 and the convenience of later maintenance.
[0029] Specifically, Figure 3 and Figure 4 As shown, one end of the latch 62 is fixedly connected to an auxiliary rod 63, and a plurality of protrusions are provided on the surface of the auxiliary rod 63. By providing the auxiliary rod 63, the auxiliary rod 63 can provide a fulcrum for personnel, so that personnel can drive the latch 62 to move quickly by manually moving the auxiliary rod 63, thereby improving the convenience of manually plugging and unplugging the latch 62. One end of the latch 62 away from the auxiliary rod 63 is fixedly connected to a leather cover 64, and the leather cover 64 is sleeved on the surface of the latch 62. By providing the leather cover 64, the leather cover 64 can follow the latch 62 to be inserted into the round hole column 61 and the round hole rod 67 and squeeze the inner wall of the round hole rod 67, thereby improving the stability of the latch 62.
[0030] The working principle of the utility model is:
[0031] S1. First, manually move the circular plate 51 so that the circular plate 51 drives the round hole rod 67 to move, and the round hole rod 67 drives the positioning block 68 to move. When the round hole rod 67 moves to a position completely inserted into the slot 65, the positioning block 68 is inserted into the positioning slot 66 so that the inner wall of the round hole rod 67 coincides with the inner wall of the round hole column 61. At this time, manually move the latch 62 so that the latch 62 moves to insert into the round hole column 61 and the round hole rod 67 to fix the position of the round hole rod 67 and the circular plate 51, thereby completing the rapid assembly of the fixing device 5 and the body 1.
[0032] S2. At this time, manually place the bearing on the surface of the circular hole ring 52 so that the two pressure plates 59 are located inside the inner ring of the bearing. Then, manually rotate the operation block 56, causing the operation block 56 to drive the bidirectional screw 55 to rotate. The bidirectional screw 55 drives the two threaded hole rods 58 to move towards each other, and the two threaded hole rods 58 drive the two pressure plates 59 to move towards each other. When the two pressure plates 59 move towards each other and simultaneously squeeze the inner ring of the bearing, the position of the bearing is fixed. At this time, start the motor 3 to drive the turntable 4 to rotate in contact with the bearing, causing the bearing to rotate driven by the turntable 4. Subsequently, the number of rotations of the bearing is detected by the counter 2 to calculate the service life of the bearing.
[0033] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0034] The above has described the preferred embodiments of this patent in detail, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of this patent.
Claims
1. A cylindrical roller bearing life detection device that is easy to disassemble, comprising a body (1), characterized in that: A counter (2) is provided on one side of the machine body (1), a motor (3) is provided on one side of the machine body (1), a rotating disk (4) is provided at the output end of the motor (3), a fixing device (5) is provided on one side of the machine body (1), the fixing device (5) comprises a circular plate (51), a connecting device (6) is provided between the circular plate (51) and the machine body (1), a circular hole ring (52) is fixedly connected to one side of the circular plate (51), two limiting frames (53) are fixedly connected to one side of the circular plate (51), the two limiting frames (53) are both located inside the circular hole ring (52), and the two limiting frames (53) are connected to the circular plate (51). The inner wall of the frame (53) is rotatably connected with a bidirectional screw rod (55), and the surface thread shapes of the bidirectional screw rod (55) are arranged in opposite symmetry. The bidirectional screw rod (55) is located inside the circular hole ring (52), and the surface of the bidirectional screw rod (55) is symmetrically threadedly connected with two screw hole rods (58), and the two screw hole rods (58) are both slidably connected to the inner wall of the circular hole ring (52), and one end of the two screw hole rods (58) is fixedly connected with a pressure plate (59), and the middle part of the bidirectional screw rod (55) is fixedly connected with an operating block (56), and the operating block (56) is located between the two limit frames (53).
2. The easily disassembled cylindrical roller bearing life detection device according to claim 1 is characterized in that: A plurality of anti-slip strips (57) are fixedly connected to the surface of the operating block (56), and the plurality of anti-slip strips (57) are arranged at equal distances.
3. The easily disassembled cylindrical roller bearing life detection device according to claim 1, characterized in that: A plurality of rubber strips (510) are fixedly connected to one side of each of the two pressing plates (59), and the cross-section of the rubber strips (510) is arc-shaped.
4. The easily disassembled cylindrical roller bearing life detection device according to claim 1, characterized in that: One side of the two screw hole rods (58) is fixedly connected to a limiting block (511), the surface of the circular hole ring (52) is symmetrically provided with two limiting grooves (54), and the surfaces of the two limiting blocks (511) are respectively slidably connected to the inner walls of the two limiting grooves (54).
5. The easily disassembled cylindrical roller bearing life detection device according to claim 1 is characterized in that: The connecting device (6) comprises a round hole column (61), the round hole column (61) is fixedly connected to the machine body (1), the inner wall of the round hole column (61) is slidably connected with a latch pin (62), one side of the round hole column (61) is provided with a slot (65), one side of the circular plate (51) is fixedly connected with a round hole rod (67), the surface of the round hole rod (67) is slidably connected with the inner wall of the slot (65), the surface size and shape of the latch pin (62) are matched with the size and shape of the inner wall of the round hole rod (67), one side of the round hole rod (67) is fixedly connected with a positioning block (68), the inner wall of the slot (65) is provided with a positioning groove (66), and the surface of the positioning block (68) is slidably connected with the inner wall of the positioning groove (66).
6. The easily disassembled cylindrical roller bearing life detection device according to claim 5, characterized in that: One end of the latch pin (62) is fixedly connected to an auxiliary rod (63), and a surface of the auxiliary rod (63) is provided with a plurality of protrusions.
7. The easily disassembled cylindrical roller bearing life detection device according to claim 6, characterized in that: One end of the latch pin (62) away from the auxiliary rod (63) is fixedly connected to a leather cover (64), and the leather cover (64) is sleeved on the surface of the latch pin (62).