Durability strength testing device for conical bearing production

Abstract

The invention relates to the field of bearing testing, in particular to a durability strength testing device for conical bearing production, and the device can flexibly adjust the abutting position and force according to the size of an inner ring of a conical bearing through the cooperation of a fixing cylinder of an expansion assembly, an outer side wall positioning clamping ring of the fixing cylinder, a pushing part positioning clamping strip and an expansion part. Therefore, an operator does not need to pay attention to and frequently replace the inner ring insertion roller at any time, inaccurate test data or equipment failure caused by size mismatching is avoided, the test efficiency and the equipment operation stability are effectively improved, and the problems that in the prior art, when equipment tests a conical bearing, the inner ring insertion roller of a single specification cannot be used for adaptation due to different inner ring sizes, and the test efficiency is poor are solved. In order to ensure the accuracy and effectiveness of the test, an operator needs to pay attention to the size parameters of the inner ring at any time, and once the size changes, the operator needs to quickly pick out adaptive insertion rollers from various specifications and replace the insertion rollers, otherwise, inaccurate test data or equipment failure is easily caused, and the propulsion of the test work is seriously influenced.

Description

Technical Field

[0001] The present invention relates to the field of bearing testing, and particularly to a durability strength testing device for the production of tapered bearings. Background Art

[0002] A durability performance intelligent testing device for tapered roller bearings with the application number CN202311367365.3, which relates to the field of bearing testing, includes a main controller installed inside the testing body. There are four inner shafts inside the rotating shaft, and an anti-slip component is sleeved and fixed at the middle position of each inner shaft. The anti-slip component is of an annular structure and is made of flexible rubber material. There are annularly arranged V-shaped grooves on the outer side of each anti-slip component. After the inner shaft contacts the tapered roller bearing, the tapered roller bearing squeezes the anti-slip component, and the anti-slip component contacts the tapered roller bearing by virtue of its own anti-slip performance, continuously improving the friction force. After the tapered roller bearing rotates continuously, there will be no virtual position or looseness, improving the accuracy of test data, and solving the problem that the friction force of the existing durability performance intelligent testing device for tapered roller bearings will gradually decrease after a long-time rotation test, and it is easy to have sliding when driving the tapered roller bearing to rotate, affecting the test accuracy.

[0003] In the prior art of the above-mentioned patent, when the existing equipment is performing tests, due to the unevenness of the inner ring sizes, a single-specification inner ring plug roller cannot be used to adapt to all tapered bearing inner rings during the test. In order to ensure that the test can be carried out accurately and effectively, it is necessary to flexibly and timely replace the inner ring plug roller that matches according to the different sizes of the tapered bearing inner rings. This requires the operator to always pay close attention to the size parameters of the tapered bearing inner ring. Every time there is a size change, quickly select the appropriate model from multiple specifications of inner ring plug rollers and complete the replacement operation to ensure the smooth progress of the equipment test work and avoid problems such as inaccurate test data or equipment operation failures caused by the mismatch between the inner ring plug roller and the inner ring size. Therefore, it is very necessary to invent a durability strength testing device for the production of tapered bearings to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a durability strength testing device for the production of tapered bearings. Through the fixed cylinder of the expansion component, the positioning snap ring on its outer sidewall cooperates with the positioning strip of the pushing component and the expansion component, and the contact position and force can be flexibly adjusted according to the inner ring size of the tapered bearing. This enables the operator to avoid constantly paying attention to and frequently replacing the inner ring insertion roller, preventing inaccurate test data or equipment failures caused by size mismatches, effectively improving the test efficiency and the operating stability of the equipment, so as to solve the problem in the prior art that when the equipment tests tapered bearings, due to the different inner ring sizes, a single specification of inner ring insertion roller cannot be used for adaptation. To ensure accurate and effective testing, the operator needs to constantly pay attention to the inner ring size parameters. Once the size changes, the operator has to quickly select and replace the appropriate insertion roller from multiple specifications, otherwise it is easy to cause inaccurate test data or equipment failures, seriously affecting the progress of the testing work.

[0005] To achieve the above object, the present invention provides the following technical solutions: A durability strength testing device for the production of tapered bearings, including a positioning frame. A circular opening adapted to the tapered bearing is provided at the center of the positioning frame. The tapered bearing is located in the inner cavity of the circular opening. Pressurizing components are threadedly connected to both sides of the positioning frame. One side of each of the two pressurizing components abuts against the outer sidewall of the outer ring of the tapered bearing. One end of each of the two pressurizing components is connected to a driving component through a flange. One end of the two driving components is connected to a push rod controller. A fixing component is sleeved on the outer sidewall of the output end of the push rod controller. One end of the fixing component is inserted into the inner ring of the tapered bearing; the fixing component includes a pushing component, an expansion component, and a mounting component. The pushing component is provided on the outer sidewall of the output end of the push rod controller. The expansion component is snap-connected to the pushing component. One end of the mounting component is provided on the inner bottom wall of the positioning frame, and the other end of the mounting component is mounted on the sidewall of the expansion component.

[0006] As a preferred solution of the present invention, the output end of the push rod controller is connected to an electric push rod. One end of the electric push rod is tapered, and a hexagonal jack adapted to the mounting component is provided on the tapered end of the electric push rod.

[0007] As a preferred solution of the present invention, the pushing component includes a sleeve. A plurality of positioning strips are movably inserted into the outer sidewall of the sleeve. The plurality of positioning strips are arranged in a circular array. A spring is sleeved on the outer sidewall of the positioning strip. One end of the positioning strip is provided with a tapered block.

[0008] As a preferred solution of the present invention, the expansion component includes a fixed cylinder. One end of the fixed cylinder is inserted into the inner cavity of the sleeve. A plurality of positioning snap rings adapted to the positioning strips are sleeved on the outer sidewall of the fixed cylinder. A plurality of expansion components arranged in an array are provided on one end sidewall of the fixed cylinder.

[0009] As a preferred embodiment of the present invention, the expansion member includes a hexagonal rod, the hexagonal rod is slidably arranged on the outer side of the fixed cylinder, one end of the hexagonal rod is provided with a contact plate, one side of the contact plate is arranged in an inclined plane, the other end of the fixed cylinder is provided with an adapter block, and one side of the adapter block is provided with an anti-slip sheet.

[0010] As a preferred embodiment of the present invention, the mounting member includes a positioning insertion rod, one end of the positioning insertion rod penetrates through the inner cavity of the fixed cylinder and is inserted into the inner cavity of a hexagonal socket formed on the electric push rod, one end of the positioning insertion rod is provided with a mounting disc, and a plurality of bolts for cooperating with the fixed cylinder are arranged on the mounting disc.

[0011] As a preferred embodiment of the present invention, the pressurizing assembly includes a connecting rod, the connecting rod is slidably inserted on the side walls of both sides of the positioning frame, a spring is sleeved on one end of the connecting rod located on the inner side wall of the positioning frame, the other end of the spring abuts against the plug hole on the side wall of the positioning frame, one end of the connecting rod is connected with a pressurizing member, and a plurality of pressure sensors arranged in an annular array are arranged on one side of the pressurizing member, and the pressure sensors abut against the outer ring of the tapered bearing.

[0012] As a preferred embodiment of the present invention, the driving assembly includes a driving motor, a protective cover is arranged on the outer side of the driving motor, the driving motor is arranged in the inner cavity of the protective cover, the power output shaft of the driving motor is provided with an eccentric wheel through gear meshing, the eccentric wheel is rotatably connected to the inner bottom wall of the protective cover, a contact block is abutted against the outer side wall of the eccentric wheel, and one end of the contact block is connected with the pressurizing assembly through a flange.

[0013] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows: 1. Through the cooperation between the plurality of positioning snap rings on the outer side wall of the fixed cylinder in the expansion assembly, the positioning snap strips of the pushing member, and the expansion member, it is possible to flexibly adjust the abutting position and force according to different sizes of the inner ring of the tapered bearing, without the need for operators to constantly pay attention and frequently replace inner ring plug rollers of different specifications, effectively avoiding problems such as inaccurate test data or equipment operation failures caused by the mismatch between the inner ring plug roller and the inner ring size, and improving the test efficiency and the stability of equipment operation; 2. The driving motor outputs power, drives the eccentric wheel to rotate through gear meshing. During the rotation of the eccentric wheel, its outer side wall abuts against the contact block, thereby converting the rotational motion of the driving motor into the telescopic motion of the contact block, and being able to accurately transmit the power of the driving motor to the pressurizing assembly. Through the regular displacement change generated by the rotation of the eccentric wheel, the pressurizing assembly is stably and controllably pushed to apply pressure to the outer ring of the tapered bearing, simulating radial loads under different working conditions, providing a diverse and accurate pressure simulation environment for the durability strength test of the tapered bearing, improving the reliability and authenticity of the test results, and enhancing the adaptability of the equipment to different test requirements. Brief Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the positioning frame structure of the present invention Figure 1 ; Figure 3 It is a schematic diagram of the positioning frame structure of the present invention Figure 2 ; Figure 4 It is a schematic diagram of the pressure sensor structure of the present invention; Figure 5 It is a schematic diagram of the planar structure of the pressurizing assembly of the present invention; Figure 6 It is a schematic diagram of the structures of the driving member, the expansion assembly and the mounting member of the present invention; Figure 7 It is a schematic diagram of the driving member structure of the present invention; Figure 8 It is a schematic diagram of the expansion assembly structure of the present invention; Figure 9 It is a schematic diagram of the connection relationship structure between the expansion member and the fixed cylinder of the present invention; Figure 10 It is a schematic diagram of the expansion member structure of the present invention; Figure 11 It is a schematic diagram of the mounting member structure of the present invention.

[0016] Description of the Reference Numerals: 1. Positioning frame; 2. Pressurizing assembly; 21. Connecting rod; 22. Pressurizing member; 23. Pressure sensor; 3. Driving assembly; 31. Driving motor; 32. Eccentric wheel; 33. Contact block; 4. Push rod controller; 41. Electric push rod; 5. Fixing assembly; 51. Driving member; 511. Sleeve; 512. Positioning card strip; 513. Tapered block; 52. Expansion assembly; 521. Fixed cylinder; 522. Positioning snap ring; 523. Expansion member; 231. Hexagonal rod; 232. Contact plate; 233. Fitting block; 234. Anti-slip sheet; 53. Mounting member; 531. Positioning insertion rod; 532. Mounting plate. Detailed Embodiments

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further introduce the present invention in detail with reference to the drawings.

[0018] The present invention provides a durability strength testing device for the production of tapered bearings as shown in Figures 1-11 which includes a positioning frame 1. A circular opening adapted to the tapered bearing is provided at the center of the positioning frame 1. The tapered bearing is located in the inner cavity of the circular opening. Pressing components 2 are threadedly connected to both sides of the positioning frame 1. One side of each of the two pressing components 2 abuts against the outer sidewall of the outer ring of the tapered bearing. One end of each of the two pressing components 2 is connected to a driving component 3 through a flange. One end of the two driving components 3 is connected to a push rod controller 4. A fixing component 5 is sleeved on the outer sidewall of the output end of the push rod controller 4. One end of the fixing component 5 is inserted into the inner ring of the tapered bearing; the fixing component 5 includes a pushing member 51, an expanding component 52 and a mounting member 53. The pushing member 51 is provided on the outer sidewall of the output end of the push rod controller 4. The expanding component 52 is snap-connected to the pushing member 51. One end of the mounting member 53 is provided on the inner bottom wall of the positioning frame 1, and the other end of the mounting member 53 is mounted on the sidewall of the expanding component 52; through such a structural setting, stable positioning and fixing of the tapered bearing are achieved, facilitating subsequent strength testing and improving the accuracy and reliability of the testing.

[0019] Furthermore, an electric push rod 41 is connected to the output end of the push rod controller 4. One end of the electric push rod 41 is tapered. A hexagonal jack adapted to the mounting member 53 is provided on the tapered end of the electric push rod 41; the tapered setting of the electric push rod 41 facilitates cooperation with other components, and the design of the hexagonal jack enables the mounting member 53 to be accurately inserted, ensuring the stability of the connection and thus guaranteeing the stability of power transmission during the testing process.

[0020] Furthermore, the pushing member 51 includes a sleeve 511. A plurality of positioning strips 512 are movably inserted into the outer sidewall of the sleeve 511. The plurality of positioning strips 512 are arranged in a circular array. A spring is sleeved on the outer sidewall of the positioning strips 512. One end of the positioning strips 512 is provided with a tapered block 513; the cooperation of the positioning strips 512 and the spring enables the pushing member 51 to automatically adapt to different installation positions when snap-connected to the expanding component 52, improving the convenience and flexibility of the connection. The tapered block 513 helps to guide the snap-connection action of the positioning strips 512.

[0021] Furthermore, the expanding component 52 includes a fixing cylinder 521. One end of the fixing cylinder 521 is inserted into the inner cavity of the sleeve 511. A plurality of positioning rings 522 adapted to the positioning strips 512 are sleeved on the outer sidewall of the fixing cylinder 521. A plurality of expanding members 523 arranged in an array are provided on one end sidewall of the fixing cylinder 521; the cooperation of the positioning rings 522 and the positioning strips 512 realizes a reliable connection between the pushing member 51 and the expanding component 52. The expanding members 523 are arranged in an array, which can better support and abut against the inner rings of tapered bearings of different sizes, improving the versatility of the device.

[0022] Furthermore, the extension member 523 includes a hexagonal rod 231. The hexagonal rod 231 is slidably arranged on the outer side of the fixed cylinder 521. One end of the hexagonal rod 231 is provided with a contact plate 232. One side of the contact plate 232 is arranged as an inclined surface. The other end of the fixed cylinder 521 is provided with an adapter block 233. One side of the adapter block 233 is provided with an anti-slip sheet 234. The sliding arrangement of the hexagonal rod 231 enables the extension member 523 to flexibly adjust its position. The inclined surface arrangement of the contact plate 232 facilitates contact with the inner ring of the tapered bearing and the application of force. The presence of the anti-slip sheet 234 increases the friction with the inner ring of the tapered bearing, prevents sliding during the test, and improves the stability of the test.

[0023] Furthermore, the mounting member 53 includes a positioning insertion rod 531. One end of the positioning insertion rod 531 penetrates the inner cavity of the fixed cylinder 521 and is inserted into the inner cavity of a hexagonal socket formed on the electric push rod 41. One end of the positioning insertion rod 531 is provided with a mounting plate 532. A plurality of bolts cooperating with the fixed cylinder 521 are arranged on the mounting plate 532. The cooperation between the positioning insertion rod 531 and the hexagonal socket and the fixation of the bolts ensure the stable connection between the mounting member 53, the electric push rod 41, and the fixed cylinder 521, and guarantee the structural stability of the entire fixing assembly 5 during the test.

[0024] Furthermore, the pressurizing assembly 2 includes a connecting rod 21. The connecting rod 21 is slidably inserted into the side walls on both sides of the positioning frame 1. A spring is sleeved on one end of the connecting rod 21 located on the inner side wall of the positioning frame 1. The other end of the spring abuts against the plug hole on the side wall of the positioning frame 1. One end of the connecting rod 21 is connected with a pressurizing member 22. A plurality of pressure sensors 23 arranged in an annular array are arranged on one side of the pressurizing member 22. The pressure sensors 23 abut against the outer ring of the tapered bearing. The setting of the spring can buffer the impact force during the pressurizing process, protect the equipment and the tapered bearing. The pressure sensors 23 are arranged in an annular array, which can more comprehensively and accurately detect the pressure received by the outer ring of the tapered bearing and provide reliable data support for the test.

[0025] Furthermore, the driving assembly 3 includes a driving motor 31. A protective cover is arranged outside the driving motor 31. The driving motor 31 is arranged in the inner cavity of the protective cover. The power output shaft of the driving motor 31 is provided with an eccentric wheel 32 through gear meshing. The eccentric wheel 32 is rotatably connected to the inner bottom wall of the protective cover. A contact block 33 abuts against the outer side wall of the eccentric wheel 32. One end of the contact block 33 is connected with the pressurizing assembly 2 through a flange. The protective cover can protect the driving motor 31 and improve the safety of the equipment. By driving the eccentric wheel 32 to rotate through the driving motor 31, and then pushing the pressurizing assembly 2 to apply pressure to the tapered bearing, different radial loads under different working conditions can be accurately simulated, and the authenticity and effectiveness of the test results can be improved.

[0026] Working principle: The first step is to place the tapered bearing in the circular opening of the positioning frame 1, and then install the mounting member 53 on the inner bottom wall of the positioning frame 1 and connect it to the expansion assembly 52 by bolts; The second step is to start the push rod controller 4, and push the electric push rod 41 to be inserted into the inner cavity of the fixed cylinder 521 through the output end of the push rod controller 4. At this time, one end of the positioning plug rod 531 is inserted into the inner cavity of the hexagonal socket to realize the positioning of the sleeve 511. When the push member 51 is inserted into the fixed cylinder 521, the multiple positioning clips 512 are pushed by the elastic force of the spring. When the electric push rod 41 is inserted into the inner cavity of the fixed cylinder 521, the tapered end of the electric push rod 41 and the contact plate 232 fit each other, pushing the contact plate 232 at the corresponding position to contact the side wall of the inner ring of the tapered bearing; It should be noted that the extension size of the extension piece 523 can be adjusted by the insertion depth of the electric push rod 41. The deeper the insertion depth of the electric push rod 41, the more the fixing tube 521 is clamped on the corresponding positioning clamp ring 522 to realize the positioning of the electric push rod 41, so that the electric push rod 41 can push the extension piece 523 at the corresponding position to contact the side wall of the inner ring of the tapered bearing of different sizes, and the anti-slip sheet 234 can be used to maintain a firm contact fixation, thereby avoiding position deviation during testing and improving the practicality of the equipment. The third step is to start the driving component 3, and drive the gear to rotate through the power output shaft of the driving motor 31 and drive the eccentric wheel 32 meshing with it to rotate, and push the contact block 33 to perform telescopic movement through the eccentric wheel 32, and the connecting rod 21 pushes the pressure piece 22 to contact the outer ring of the tapered bearing, and gradually applies pressure to the outside of the pressure piece 22, and detects the size of the pressure value through multiple pressure sensors 23. The radial force is applied through the cooperation of the eccentric wheel 32 and the pressure piece 22, and the eccentricity can be adjusted by the driving motor 31 to simulate the radial load under different working conditions.

[0027] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A durability strength testing device for tapered bearing production, characterized in that: The invention comprises a positioning frame (1), wherein a circular opening matching with a tapered bearing is formed in the center of the positioning frame (1), wherein the tapered bearing is located in the inner cavity of the circular opening, wherein pressure components (2) are threadedly connected to two sides of the positioning frame (1), wherein one side of each of the two pressure components (2) contacts with the side wall of the outer ring of the tapered bearing, wherein one end of each of the two pressure components (2) is connected to a driving component (3) via a flange, wherein one end of each of the two driving components (3) is connected to a push rod controller (4), wherein the outer side of the output end of the push rod controller (4) is A fixing component (5) is sleeved on the wall, and one end of the fixing component (5) is inserted into the inner ring of the tapered bearing; the fixing component (5) comprises a pushing member (51), an extension component (52) and a mounting member (53); the pushing member (51) is arranged on the outer wall of the output end of the push rod controller (4); the extension component (52) is snap-connected with the pushing member (51); one end of the mounting member (53) is arranged on the inner bottom wall of the positioning frame (1); and the other end of the mounting member (53) is mounted on the side wall of the extension component (52).

2. The endurance strength testing device for tapered bearing production according to claim 1, characterized in that: The output end of the push rod controller (4) is connected to an electric push rod (41), one end of the electric push rod (41) is arranged in a conical shape, and a hexagonal socket matching with a mounting piece (53) is provided on the conical end of the electric push rod (41).

3. The endurance strength testing device for tapered bearing production according to claim 1, characterized in that: The pushing member (51) comprises a sleeve (511), a plurality of positioning clips (512) are movably inserted on the outer wall of the sleeve (511), the plurality of positioning clips (512) are arranged in a ring array, a spring is sleeved on the outer wall of the positioning clips (512), and a conical block (513) is provided at one end of the positioning clips (512).

4. The endurance strength testing device for tapered bearing production according to claim 3, characterized in that: The extension component (52) comprises a fixed tube (521), one end of the fixed tube (521) is inserted into the inner cavity of the sleeve (511), a plurality of positioning clamping rings (522) cooperating with the positioning clamping strips (512) are sleeved on the outer wall of the fixed tube (521), and a plurality of extension pieces (523) arranged in an array are provided on the side wall of one end of the fixed tube (521).

5. The endurance strength testing device for tapered bearing production according to claim 4, characterized in that: The extension piece (523) comprises a hexagonal rod (231), the hexagonal rod (231) being slidably arranged on the outside of the fixed cylinder (521), a contact plate (232) being arranged at one end of the hexagonal rod (231), one side of the contact plate (232) being arranged in an inclined surface, an adapter block (233) being arranged at the other end of the fixed cylinder (521), and an anti-slip sheet (234) being arranged at one side of the adapter block (233).

6. The endurance strength testing device for tapered bearing production according to claim 1, characterized in that: The mounting member (53) comprises a positioning rod (531), one end of which passes through the inner cavity of the fixing cylinder (521) and is inserted into the inner cavity of a hexagonal socket provided on the electric push rod (41); one end of the positioning rod (531) is provided with a mounting plate (532), and the mounting plate (532) is provided with a plurality of bolts that cooperate with the fixing cylinder (521).

7. The endurance strength testing device for tapered bearing production according to claim 1, characterized in that: The pressurizing assembly (2) comprises a connecting rod (21), the connecting rod (21) being slidably plugged into the side walls of the positioning frame (1), a spring being sleeved on one end of the connecting rod (21) located on the inner wall of the positioning frame (1), the other end of the spring being in contact with the plug-in hole of the side wall of the positioning frame (1), one end of the connecting rod (21) being connected to a pressurizing member (22), one side of the pressurizing member (22) being provided with a plurality of pressure sensors (23) arranged in a ring array, the pressure sensors (23) being in contact with the outer ring of the tapered bearing.

8. The endurance strength testing device for tapered bearing production according to claim 7, characterized in that: The drive assembly (3) comprises a drive motor (31), a protective cover is provided on the outside of the drive motor (31), the drive motor (31) is arranged in the inner cavity of the protective cover, the power output shaft of the drive motor (31) is provided with an eccentric wheel (32) through gear meshing, the eccentric wheel (32) is rotatably connected to the inner bottom wall of the protective cover, the outer side wall of the eccentric wheel (32) is abutted against a contact block (33), and one end of the contact block (33) is connected to the pressurizing assembly (2) through a flange.

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