A kind of conical bearing production is with endurance strength testing device

Abstract

The application relates to the field of bearing testing, in particular to a durability strength testing device for tapered bearing production, which is characterized in that the outer side wall positioning snap ring of the fixing cylinder of the expansion assembly cooperates with the pushing piece positioning snap strip and the expansion piece, the contact position and the force can be flexibly adjusted according to the size of the inner ring of the tapered bearing, the operator does not need to pay attention to and frequently replace the inner ring plug roller at any time, the test data is not inaccurate or the equipment is not faulty due to size mismatch, the test efficiency and the equipment operation stability are effectively improved, the problem that, in the prior art, when equipment tests tapered bearings, the inner rings of different sizes cannot be matched with single-specification inner ring plug rollers, in order to ensure test accuracy and effectiveness, the operator needs to pay attention to the size parameters of the inner ring at any time, once the size changes, the operator needs to quickly select and replace the matching plug roller from multiple specifications, otherwise, the test data is inaccurate or the equipment is faulty, and the test work is seriously affected.

Description

TECHNICAL FIELD

[0001] The application relates to the field of bearing testing, and in particular to a durability strength testing device for tapered bearing production. BACKGROUND

[0002] The application number CN202311367365.3 relates to a kind of durability performance intelligent testing device of conical roller bearing, and relates to the field of bearing testing, the inside installation of test main body is equipped with main control unit, the inside of rotating shaft is equipped with four inner shafts, one anti-skid component is fixed in the middle position of each inner shaft, the anti-skid component is circular ring structure, the anti-skid component is flexible rubber material, the outer side of each anti-skid component is equipped with annularly arranged V-shaped groove. After the inner shaft contacts with the conical roller bearing, the conical roller bearing extrudes the anti-skid component, the anti-skid component contacts with the conical roller bearing by its own anti-skid performance, continuously improves the friction force, and the conical roller bearing does not appear virtual position and looseness after continuous rotation, improves the accuracy of test data, solves the problem that the existing durability performance intelligent testing device of conical roller bearing gradually decreases the friction force after long-time rotation test, and easily appears sliding when driving the conical roller bearing to rotate, which affects the test precision.

[0003] The existing device in the prior art of the above-mentioned patent cannot use a single specification inner ring plug roller to adapt to all tapered bearing inner rings during testing due to the uneven size of the inner ring. In order to ensure that the test can be accurately and effectively carried out, it is necessary to replace the inner ring plug roller matched with the tapered bearing inner ring according to the different sizes of the tapered bearing inner ring. This requires the operator to closely monitor the size parameters of the tapered bearing inner ring at all times, and to quickly select the appropriate model from a variety of specifications of inner ring plug rollers and complete the replacement operation every time the size changes, so as to ensure that the equipment testing work can proceed smoothly and avoid problems such as inaccurate test data or equipment operation failure caused by the mismatch between the inner ring plug roller and the inner ring size.

[0004] Therefore, it is necessary to invent a durability strength testing device for tapered bearing production to solve the above problems. SUMMARY

[0005] The application aims to provide a durable strength testing device for tapered bearing production, which can flexibly adjust the contact position and force according to the size of the inner ring of the tapered bearing through the cooperation of the outer sidewall positioning clamping ring of the expansion assembly, the pusher positioning clamping strip and the expansion element. This allows the operator to not need to pay attention to and frequently replace the inner ring plug roller, avoids the inaccuracy of test data or equipment failure caused by size mismatch, effectively improves the test efficiency and equipment operation stability, and solves the problem in the prior art that the single specification inner ring plug roller cannot be adapted due to the different sizes of the inner ring when the equipment tests the tapered bearing, so that the operator needs to pay attention to the size parameters of the inner ring at all times, and once the size changes, the operator needs to quickly select the appropriate plug roller from multiple specifications and replace it, otherwise, the inaccuracy of test data or equipment failure is easy to occur, which seriously affects the test work.

[0006] In order to achieve the above-mentioned purpose, the application provides the following technical scheme:

[0007] A durable strength testing device for tapered bearing production, comprising a positioning frame, a circular opening matched with a tapered bearing is formed in the center of the positioning frame, the tapered bearing is located in the inner cavity of the circular opening, two pressurizing assemblies are threadedly connected to the two sides of the positioning frame, one side of each of the two pressurizing assemblies is in contact with the sidewall of the outer ring of the tapered bearing, one end of each of the two pressurizing assemblies is connected with a driving assembly through a flange, one end of each of the two driving assemblies is connected with a push rod controller, a fixing assembly is sleeved on the outer sidewall of the output end of the push rod controller, and one end of the fixing assembly is inserted into the inner ring of the tapered bearing; the fixing assembly comprises a pusher, an expansion assembly and a mounting element, the pusher is arranged on the outer sidewall of the output end of the push rod controller, the expansion assembly is connected with the pusher, one end of the mounting element is arranged on the inner bottom wall of the positioning frame, and the other end of the mounting element is arranged on the sidewall of the expansion assembly.

[0008] As a preferred scheme of the application, the output end of the push rod controller is connected with an electric push rod, one end of the electric push rod is conically arranged, and a hexagonal socket matched with the mounting element is formed in the conically arranged end of the electric push rod.

[0009] As a preferred scheme of the application, the pusher comprises a sleeve, a plurality of positioning clamping strips are movably inserted into the outer sidewall of the sleeve, the positioning clamping strips are arranged in an annular array, springs are sleeved on the outer sidewall of the positioning clamping strips, and a conical block is arranged at one end of the positioning clamping strips.

[0010] As a preferred scheme of the application, the expansion assembly comprises a fixing cylinder, one end of the fixing cylinder is inserted into the inner cavity of the sleeve, a plurality of positioning clamping rings matched with the positioning clamping strips are sleeved on the outer sidewall of the fixing cylinder, and a plurality of expansion elements arranged in an array are arranged on the sidewall of one end of the fixing cylinder.

[0011] As a preferred scheme of the present application, the extension component comprises a six-pronged rod, which is slidingly arranged on the outer side of the fixed cylinder, one end of the six-pronged rod is provided with a contact plate, one side of the contact plate is provided with an inclined surface, the other end of the fixed cylinder is provided with an adapter block, one side of the adapter block is provided with an anti-skid piece.

[0012] As a preferred scheme of the present application, the mounting component comprises a positioning plug rod, one end of the positioning plug rod penetrates the inner cavity of the fixed cylinder and is inserted into a hexagonal insertion cavity provided on the electric push rod, one end of the positioning plug rod is provided with a mounting disc, and a plurality of bolts matched with the fixed cylinder are arranged on the mounting disc.

[0013] As a preferred scheme of the present application, the pressing assembly comprises a connecting rod, which is slidingly inserted into the two side walls of the positioning frame, a spring is sleeved on one end of the connecting rod on the inner side wall of the positioning frame, the other end of the spring abuts against the side wall insertion hole of the positioning frame, one end of the connecting rod is connected with a pressing component, one side of the pressing component is provided with a plurality of pressure sensors arranged in an annular array, and the pressure sensors abut against the outer ring of the conical bearing.

[0014] As a preferred scheme of the present application, the driving assembly comprises a driving motor, the outer side of the driving motor is provided with a protective cover, 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 rotationally connected to the inner bottom wall of the protective cover, the outer side wall of the eccentric wheel is provided with a contact block, and one end of the contact block is connected with the pressing assembly through a flange.

[0015] In the above technical scheme, compared with the prior art, the present application has the following technical effects and advantages:

[0016] 1. Through the cooperation between the plurality of positioning clamps on the outer side wall of the fixed cylinder of the extension component, the positioning clamping strips of the push component and the extension component, the abutting position and force can be flexibly adjusted according to the different sizes of the inner ring of the conical bearing, the operator does not need to pay attention to and frequently replace the inner ring insertion rollers of different specifications at all times, the problems of inaccurate test data or equipment running failure caused by the mismatch between the inner ring insertion roller and the inner ring size are effectively avoided, and the test efficiency and the stability of the equipment running are improved.

[0017] 2. The driving motor outputs power and drives the eccentric wheel to rotate through gear engagement. The outer wall of the eccentric wheel contacts the contact block during rotation, thereby converting the rotary motion of the driving motor into the extension and contraction motion of the contact block. The power of the driving motor can be accurately transmitted to the pressurizing assembly. The regular displacement change generated by the rotation of the eccentric wheel stably and controllably pushes the pressurizing assembly to exert pressure on the outer ring of the tapered bearing, simulates the radial load under different working conditions, provides a diversified and accurate pressure simulation environment for the durability strength test of the tapered bearing, improves the reliability and authenticity of the test results, and enhances the adaptability of the equipment to different test requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application.

[0020] Figure 2 It is a schematic diagram of the positioning frame structure of the present application. Figure One ;

[0021] Figure 3 It is a schematic diagram of the positioning frame structure of the present application. Figure Two ;

[0022] Figure 4 It is a schematic diagram of the pressure sensor structure of the present application.

[0023] Figure 5 It is a schematic diagram of the planar structure of the pressurizing assembly of the present application.

[0024] Figure 6 It is a schematic diagram of the structure of the pushing member, the expansion assembly and the mounting member of the present application.

[0025] Figure 7 It is a schematic diagram of the structure of the pushing member of the present application.

[0026] Figure 8 It is a schematic diagram of the structure of the expansion assembly of the present application.

[0027] Figure 9 It is a schematic diagram of the connection relationship between the expansion member and the fixed cylinder of the present application.

[0028] Figure 10 It is a schematic diagram of the structure of the expansion member of the present application.

[0029] Figure 11 It is a schematic diagram of the structure of the mounting member of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 1, positioning frame; 2, pressurizing assembly; 21, connecting rod; 22, pressurizing piece; 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, pushing piece; 511, sleeve; 512, positioning clamping strip; 513, conical block; 52, expansion assembly; 521, fixing cylinder; 522, positioning clamping ring; 523, expansion piece; 231, hexagonal rod; 232, contact plate; 233, adaptive block; 234, anti-skid sheet; 53, mounting piece; 531, positioning insertion rod; 532, mounting disc. DETAILED DESCRIPTION

[0032] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0033] The present application provides a kind of conical bearing production durability strength testing device as shown in Figures 1-11 , including positioning frame 1, the center of positioning frame 1 is provided with the circular opening matched with conical bearing, conical bearing is located in the inner cavity of circular opening, the two sides of positioning frame 1 are threadedly connected with pressurizing assembly 2, one side of two pressurizing assembly 2 is in contact with the outer ring side wall of conical bearing, one end of two pressurizing assembly 2 is connected with driving assembly 3 through flange, one end of two driving assembly 3 is connected with push rod controller 4, the outer side wall on the output end of push rod controller 4 is sleeved with fixing assembly 5, and one end of fixing assembly 5 is inserted into the inner ring of conical bearing;Fixing assembly 5 includes pushing piece 51, expansion assembly 52 and mounting piece 53, pushing piece 51 is arranged on the outer side wall of the output end of push rod controller 4, expansion assembly 52 is connected with pushing piece 51, one end of mounting piece 53 is arranged on the inner bottom wall of positioning frame 1, and the other end of mounting piece 53 is mounted on the side wall of expansion assembly 52;Through such structure, the stable positioning and fixing of conical bearing are realized, which facilitates subsequent strength test, improves the accuracy and reliability of test.

[0034] Further, the output end of push rod controller 4 is connected with electric push rod 41, one end of electric push rod 41 is conically arranged, and a hexagonal socket matched with mounting piece 53 is formed in the conically arranged end of electric push rod 41;The conical arrangement of electric push rod 41 facilitates cooperation with other components, and the design of hexagonal socket enables mounting piece 53 to be accurately inserted, ensures the stability of connection, and further ensures the stability of power transmission during test process.

[0035] Further, the pushing piece 51 comprises a sleeve 511, a plurality of positioning clamping strips 512 are movably inserted on the outer side wall of the sleeve 511, the plurality of positioning clamping strips 512 are arranged in an annular array, a spring is sleeved on the outer side wall of the positioning clamping strip 512, and a tapered block 513 is arranged at one end of the positioning clamping strip 512; the cooperation of the positioning clamping strip 512 and the spring can make the pushing piece 51 automatically adapt to different installation positions when the pushing piece 51 is clamped with the expansion assembly 52, improve the convenience and flexibility of connection, and the tapered block 513 is helpful for guiding the clamping action of the positioning clamping strip 512.

[0036] Further, the expansion assembly 52 comprises a fixed cylinder 521, one end of the fixed cylinder 521 is inserted into the inner cavity of the sleeve 511, a plurality of positioning clamping rings 522 cooperating with the positioning clamping strip 512 are sleeved on the outer side wall of the fixed cylinder 521, and a plurality of expansion pieces 523 arranged in an array are arranged on the side wall of one end of the fixed cylinder 521; the cooperation of the positioning clamping ring 522 and the positioning clamping strip 512 realizes the reliable connection between the pushing piece 51 and the expansion assembly 52, the expansion pieces 523 arranged in an array can better support and resist the different sizes of the inner ring of the tapered bearing, and the versatility of the equipment is improved.

[0037] Further, the expansion piece 523 comprises a six-rib rod 231, the six-rib rod 231 is slidably arranged on the outer side of the fixed cylinder 521, one end of the six-rib rod 231 is provided with a contact plate 232, one side of the contact plate 232 is provided in a slope, the other end of the fixed cylinder 521 is provided with an adaptive block 233, and one side of the adaptive block 233 is provided with an anti-skid piece 234; the sliding arrangement of the six-rib rod 231 enables the expansion piece 523 to flexibly adjust the position, the slope arrangement of the contact plate 232 facilitates the contact with the inner ring of the tapered bearing and the application of force, the existence of the anti-skid piece 234 increases the friction force with the inner ring of the tapered bearing, prevents sliding during the test process, and improves the stability of the test.

[0038] Further, the mounting piece 53 comprises 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 a hexagonal insertion hole cavity formed in the electric push rod 41, the one end of the positioning insertion rod 531 is provided with a mounting disc 532, and a plurality of bolts cooperating with the fixed cylinder 521 are arranged on the mounting disc 532; the cooperation of the positioning insertion rod 531 and the hexagonal insertion hole and the fixation of the bolts ensure the stable connection between the mounting piece 53 and the electric push rod 41 and the fixed cylinder 521, and guarantee the structural stability of the entire fixing assembly 5 during the test process.

[0039] Further, the pressurizing assembly 2 comprises a connecting rod 21 which is slidingly inserted on the two side walls of the positioning frame 1, a spring is sleeved on one end of the connecting rod 21 inside the side wall of the positioning frame 1, the other end of the spring is in abutment with the insertion hole of the side wall of the positioning frame 1, one end of the connecting rod 21 is connected with a pressurizing piece 22, a plurality of pressure sensors 23 arranged in a ring array are arranged on one side of the pressurizing piece 22, and the pressure sensors 23 are in abutment with the outer ring of the tapered bearing; the spring can buffer the impact force in the pressurizing process, and protect the equipment and the tapered bearing; the pressure sensors 23 are arranged in a ring array, which can more comprehensively and accurately detect the pressure on the outer ring of the tapered bearing, and provide reliable data support for testing.

[0040] Further, the driving assembly 3 comprises a driving motor 31, a protective cover is arranged on the outer side of the driving motor 31, the driving motor 31 is arranged in the inner cavity of the protective cover, a power output shaft of the driving motor 31 is provided with an eccentric wheel 32 through gear engagement, the eccentric wheel 32 is rotationally connected to the inner bottom wall of the protective cover, a contact block 33 is in abutment with the outer side wall of the eccentric wheel 32, and 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; the eccentric wheel 32 is driven to rotate by the driving motor 31, and then the pressurizing assembly 2 is driven to press the tapered bearing, so that the radial load under different working conditions can be accurately simulated, and the authenticity and effectiveness of the test results are improved.

[0041] Working principle:

[0042] Firstly, the tapered bearing is placed in the circular opening of the positioning frame 1, and then the mounting piece 53 is mounted on the inner bottom wall of the positioning frame 1 and connected with the expansion assembly 52 through bolts;

[0043] Secondly, the push rod controller 4 is started, and the output end of the push rod controller 4 drives the electric push rod 41 to be inserted into the inner cavity of the fixed cylinder 521, at this time, one end of the positioning rod 531 is inserted into the inner cavity of the hexagonal insertion hole, so that the sleeve 511 is positioned, and when the pushing piece 51 is inserted into the fixed cylinder 521, the plurality of positioning clamping strips 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 conical end of the electric push rod 41 is in abutment with the contact plate 232, and the contact plate 232 at the corresponding position is in abutment with the side wall of the inner ring of the tapered bearing;

[0044] It should be noted that the depth of the electric push rod 41 plug-in adjustable expansion piece 523 expands the size of the outside, the electric push rod 41 insertion depth is deeper, the fixed cylinder 521 is clamped on the corresponding positioning clasp 522, the positioning of the electric push rod 41 is realized, so that the electric push rod 41 can push the expansion piece 523 in the corresponding position and the inner ring sidewall of the conical bearing to resist the contact, cooperate with the anti-skid piece 234 to keep firm resistance and fixation, avoid the position deviation during testing, improve the practicability of the equipment;

[0045] Thirdly, the driving assembly 3 is started, the power output shaft of the driving motor 31 drives the gear to rotate and drives the eccentric wheel 32 engaged with the gear to rotate, the contact block 33 is pushed to move up and down by the eccentric wheel 32, the connecting rod 21 is pushed to make the pressing piece 22 resist the outer ring of the conical bearing, the pressure on the outer side of the pressing piece 22 is gradually applied, the pressure value is detected by the plurality of pressure sensors 23, the radial force is applied by the cooperation of the eccentric wheel 32 and the pressing piece 22, and the eccentric distance can be adjusted by the driving motor 31 to simulate the radial load under different working conditions.

[0046] The above only describes some exemplary embodiments of the application by way of illustration, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various ways without departing from the spirit and scope of the application. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the application.

Claims

1. A durability strength testing device for producing a tapered bearing, characterized by: The utility model provides a positioning frame (1), the center of positioning frame (1) is provided with the circular opening matched with the conical bearing, the conical bearing is located in the inner chamber of circular opening, two sides of positioning frame (1) are connected with the pressurizing assembly (2) in screw thread, one side of two pressurizing assembly (2) is in contact with the outer ring side wall of conical bearing, one end of two drive assembly (3) is connected with push rod controller (4) through the flange, the outside wall of push rod controller (4) output is equipped with the fixed component (5), one end of fixed component (5) is inserted in the inner ring of conical bearing, the fixed component (5) includes pusher (51), extension assembly (52) and mounting piece (53), pusher (51) is equipped on the outside wall of push rod controller (4) output, extension assembly (52) is connected with pusher (51) and is arranged in clamping, one end of mounting piece (53) is equipped in the inner bottom wall of positioning frame (1), the other end of mounting piece (53) is installed on the side wall of extension assembly (52).

2. A durability strength testing device for producing a conical bearing according to claim 1, characterized in that: The output end of the push rod controller (4) is connected with an electric push rod (41), one end of the electric push rod (41) is conically arranged, and a hexagonal socket matched with the mounting piece (53) is formed in the conically arranged end of the electric push rod (41).

3. A durability strength testing device for producing a tapered bearing according to claim 1, characterized in that: The pusher (51) includes a sleeve (511), a plurality of positioning clamping strips (512) are movably inserted into the outer side wall of the sleeve (511), the positioning clamping strips (512) are arranged in an annular array, springs are sleeved on the outer side walls of the positioning clamping strips (512), and tapered blocks (513) are arranged at one end of the positioning clamping strips (512).

4. A durability strength testing device for producing a tapered bearing according to claim 3, characterized in that: The extension assembly (52) includes a fixed cylinder (521), one end of the fixed cylinder (521) is inserted into the inner cavity of the sleeve (511), a plurality of positioning clamping rings (522) matched with the positioning clamping strips (512) are sleeved on the outer side wall of the fixed cylinder (521), and a plurality of expansion pieces (523) arranged in an array are arranged on the end side wall of the fixed cylinder (521).

5. A durability strength testing device for producing a tapered bearing according to claim 4, characterized in that: The expansion piece (523) includes a hexagonal rod (231), the hexagonal rod (231) is slidably arranged on the outer side of the fixed cylinder (521), a contact plate (232) is arranged at one end of the hexagonal rod (231), one side of the contact plate (232) is beveled, an adaptive block (233) is arranged at the other end of the fixed cylinder (521), and an anti-skid piece (234) is arranged on one side of the adaptive block (233).

6. A durability strength testing device for producing a tapered bearing according to claim 1, characterized in that: The mounting piece (53) includes a positioning plug rod (531), one end of the positioning plug rod (531) penetrates the inner cavity of the fixed cylinder (521) and is inserted into the hexagonal socket inner cavity formed in the electric push rod (41), an installation disc (532) is arranged at one end of the positioning plug rod (531), and a plurality of bolts matched with the fixed cylinder (521) are arranged on the installation disc (532).

7. A durability strength testing device for producing a tapered bearing according to claim 1, characterized in that: The pressurizing assembly (2) comprises a connecting rod (21) which is slidingly inserted on both side walls of the positioning frame (1), a spring is sleeved on one end of the connecting rod (21) inside the side wall of the positioning frame (1), the other end of the spring is in abutment with the side wall insertion hole of the positioning frame (1), one end of the connecting rod (21) is connected with a pressurizing piece (22), one side of the pressurizing piece (22) is provided with a plurality of pressure sensors (23) arranged in an annular array, and the pressure sensors (23) are in abutment with the outer ring of the conical bearing.

8. A durability strength testing device for producing a tapered bearing according to claim 7, characterized in that: The driving assembly (3) comprises a driving motor (31), the outer side of the driving motor (31) is provided with a protective cover, 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, the outer side wall of the eccentric wheel (32) is in abutment with a contact block (33), and one end of the contact block (33) is connected with the pressurizing assembly (2) through a flange.

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