Rotation simulation test device and method based on large bearing processing

Abstract

The invention discloses a rotation simulation testing device and method based on large bearing machining, and relates to the technical field of bearing machining testing. When the profiling clamping mechanism makes contact with the outer wall of the bearing and generates relative extrusion, the multiple profiling clamping units in the profiling clamping mechanism can relatively move under the action of the extrusion force of the outer wall of the bearing, so that the ends of the multiple profiling clamping units are jointly matched to form a shape matched with the outline of the outer wall of the bearing, and under the condition, the profile of the outer wall of the bearing can be clamped. The clamping ends of the multiple profiling clamping units can be tightly attached to the outer wall of the bearing to jointly form a large clamping face, so that the outer wall of the bearing can be stably clamped, compared with a point clamping or line clamping mode adopted by a traditional clamping tool, the large clamping face can be formed on the outer wall of the bearing, and the clamping efficiency of the bearing is improved. And the clamping force is uniformly dispersed to the multiple profiling clamping units, and the situation that the outer ring face of the bearing is damaged due to the fact that the clamping force is concentrated on the local position can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing processing and testing, and in particular to a rotation simulation testing device and method based on large-scale bearing processing. Background Art

[0002] The main purpose of the bearing processing rotation simulation test is to detect the performance of the bearing during the rotation process, including the bearing's load capacity, wear resistance, running stability, temperature control, etc. Through the test, problems in the design and manufacturing process of the bearing can be discovered in time for improvement and optimization.

[0003] A large-scale bearing processing rotation simulation test device disclosed in the patent application with reference publication number CN118225434B clamps and fixes the outer ring of the bearing main body by using four circumferentially equidistantly distributed arc-shaped fixing blocks, so that the outer ring of the bearing main body is fixed more stably, and the outer ring of the bearing main body is in a force balance state. In addition, the four arc-shaped fixing blocks can be driven to clamp and fix the outer ring of the bearing main body at the same time by only driving the connecting column to rotate, so that the outer ring of the bearing main body is fixed more conveniently and the fixing effect is better, which facilitates the subsequent rotation detection of the bearing main body and does not require the staff to perform tedious fixing steps, so the fixing is more convenient.

[0004] When the existing bearing rotation simulation test device performs a rotation test on the bearing, it is necessary to use a clamping tool to clamp and fix the outer ring of the bearing. The clamping tool mostly clamps the bearing on both sides. Since the outer wall of the bearing is not a regular plane, but an arc surface on all sides, the clamping end of the clamping tool can only form point contact or line contact with the outer wall of the bearing, making it difficult to form a stable clamp for the bearing, which can easily cause the bearing to shake during the test and cause inaccurate test results. In addition, the point clamping or line clamping method It is easy to cause the clamping force to be concentrated in a local area of ​​the outer wall of the bearing, causing the outer wall of the bearing to be damaged due to excessive force. For example, a large-scale bearing processing rotation simulation test device with reference to the publication number CN118225434B only clamps the bearing body through four arc-shaped fixed blocks, and the arc surface curvature of the arc block is a unique fixed value, which can only form a stable clamp with the bearing with the corresponding arc value, and for other bearings of different sizes, only point clamping or surface clamping can be achieved during the clamping process, so it is impossible to form a stable clamp for bearings of various sizes.

[0005] Therefore, the present invention proposes a rotation simulation test device and method based on large bearing processing to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a rotation simulation test device and method based on large-scale bearing processing, which solves the problem that when the clamping tool in the existing bearing rotation simulation test device clamps and fixes the outer ring of the bearing, the bearing is mostly clamped on both sides. Since the shape of the outer wall of the bearing is not a regular plane, but an arc-shaped outer wall is surrounded by arc surfaces, the clamping end of the clamping tool can only form point contact or line contact with the outer wall of the bearing, which makes it difficult to form a stable clamp for the bearing, which can easily cause the bearing to shake during the test and cause inaccurate test results. In addition, the point clamping or line clamping method can easily cause the clamping force to be concentrated in a local area of ​​the outer wall of the bearing, causing the outer wall of the bearing to be damaged due to excessive force.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A rotation simulation test device based on large bearing processing, comprising a detection box and a plurality of operation windows opened around the outer wall of the detection box, each of the operation windows is provided with a protective door inside by rotating through a hinge, and also comprising: The test table is fixedly arranged at the bottom of the cavity of the test box and is used to provide support for the large bearing rotation simulation test; A plurality of profiling clamping mechanisms are arranged in a circular array on the top of the test table, and are used to simulate the contour shape of the clamping end of the profiling clamping mechanism according to the outer ring contour of the bearing to be tested, and then perform profiling clamping on the bearing to be tested through the clamping end adapted to the outer ring contour of the bearing to be tested; The rotary drive mechanism is arranged above the test table and is used to expand and clamp the inner ring of the bearing to be tested, and at the same time provide driving force for multiple profiling clamping mechanisms to profiling the outer ring of the bearing; The rotation simulation test power mechanism is arranged on one side of the test platform, and is used to drive the rotation drive mechanism to move linearly upward or downward according to a preset program, and simultaneously drive the rotation drive mechanism to rotate in a circle.

[0008] Furthermore, the rotation simulation test power mechanism includes a column fixedly arranged inside the detection box and two guide rails fixedly arranged on the left and right sides of the front side of the column, and a mounting seat is slidably sleeved on the outer walls of the two guide rails, and an electric push rod is also fixedly arranged on the top of the column, and the output end of the electric push rod is fixedly connected to the outer wall of the mounting seat, and a motor mounting groove is opened inside the mounting seat, and a servo motor is fixedly arranged in the motor mounting groove.

[0009] Furthermore, the profiling clamping mechanism comprises two slide rails detachably arranged on both sides of the top of the detection platform, a slide seat is slidably sleeved on the outer walls of the two slide rails, a clamping box assembly is commonly arranged on the top of the two slide seats, a plurality of profiling clamping units for synchronously clamping different positions of the outer wall of the bearing are evenly arranged inside the clamping box assembly, one end of the plurality of profiling clamping units is commonly connected to a push-pull plate, and a screw is rotatably arranged on the side wall of the push-pull plate away from the profiling clamping unit, one end of the screw threadedly penetrates the bearing box and extends to the outside; A side plate is fixedly provided at one end of the two slide rails, a guide rod is also fixedly provided on the side wall of the side plate, a sliding sleeve is provided on the outer wall of the guide rod on the side away from the side plate, the sliding sleeve is fixedly provided at the bottom of the carrying box, and a No. 2 spring is provided on the outer wall of the guide rod and between the side plate and the sliding sleeve.

[0010] Furthermore, the clamping box assembly includes a carrying box fixedly arranged on the top of two slide seats at the same time, a wedge block No. 1 is fixedly arranged in the middle position of the top of the carrying box, and a cover plate is detachably arranged on the side wall of the carrying box, a baffle is fixedly arranged inside the carrying box, and a plurality of mounting through holes are evenly opened on the side wall of the baffle.

[0011] Furthermore, the contoured clamping unit includes a clamping column that slides through the mounting hole and a plurality of limit grooves evenly arranged on the outer wall of the clamping column, and a locking pin assembly for locking the position of the clamping column is sleeved on the outer wall of the clamping column, and the locking pin assembly includes a sleeve that is slidably sleeved on the outer wall of the clamping column, and through grooves are opened at relative positions on the upper and lower sides of the outer wall of the sleeve, and an elastic steel plate is fixedly arranged inside each of the through grooves, and a limit block is fixedly arranged at the bottom of the elastic steel plate for use in conjunction with the limit groove to lock the position of the clamping column.

[0012] Furthermore, a driving sleeve is provided on the outer wall of the sleeve for simultaneously pushing the two elastic steel plates towards each other, and a long push plate is fixedly provided on both sides of the outer wall of the driving sleeve. The two long push plates slide through the baffle and are fixedly provided with connecting blocks at the same time. The connecting blocks are fixedly provided on the side walls of the push-pull plates by bolts, and a movable hole is provided at one end of the clamping column close to the connecting block, and a long rod is slidably provided inside the movable hole, and one end of the long rod away from the clamping column is fixedly provided on the side wall of the baffle, and a No. 1 spring is provided on the outer wall of the long rod and the sliding sleeve is located between the clamping column and the baffle.

[0013] Furthermore, the rotary drive mechanism includes an internal expansion component connected to the output shaft of the servo motor, which is used to expand and clamp the inner ring of the bearing. The outer wall of the internal expansion component is also sleeved with a power component used to cooperate with multiple contour clamping mechanisms to simultaneously drive the multiple contour clamping mechanisms to complete the clamping operation of the outer ring of the bearing; The power assembly includes an annular frame and a plurality of support arms evenly fixed on the outer wall of the annular frame, a guide sleeve is fixedly provided at one end of each support arm away from the annular frame, a push rod is slidably provided inside the guide sleeve, and the push rod and the guide sleeve are locked in position by a fastening bolt, a roller is provided at the bottom end of the push rod via a rotating shaft, and a plurality of scale line grooves are evenly provided on the side wall of the push rod, and a limit rod is fixedly provided at the top of one of the support arms.

[0014] Furthermore, the internal expansion component includes a connecting shaft and a cylinder fixedly arranged at the bottom end of the connecting shaft, and a plurality of expansion and clamping units for expanding and clamping different positions of the inner wall of the inner ring of the bearing are evenly arranged inside the cylinder, and an internal expansion control unit for simultaneously controlling the plurality of expansion and clamping units to move away from or approach each other is also arranged at the inner center position of the cylinder, and the expansion and clamping unit includes a No. 2 wedge block movably arranged in the cylinder, a guide groove is provided on the inclined surface of the No. 2 wedge block, and two driving rods are fixedly arranged on the side walls opposite to the No. 2 wedge block and the guide groove, the two driving rods slide through the cylinder and are fixedly provided with clamping plates, and a No. 3 spring is slidably sleeved on the outer wall of the driving rod and on the opposite side walls of the No. 2 wedge block and the cylinder.

[0015] Furthermore, the internal expansion control unit includes a push rod that slides through the cylinder, and an outer push plate corresponding to the position of the No. 2 wedge block is evenly fixed on the outer wall of the push rod and located inside the cylinder. Each of the outer push plates is slidably arranged in a guide groove at a corresponding position. A turntable is also rotatably arranged at the bottom end of the push rod, and a spring limiting ring is provided on the outer wall of the push rod and located on the external fixed sleeve of the cylinder, and a No. 4 spring is provided on the outer wall of the push rod and located on the sliding sleeve between the spring limiting ring and the cylinder.

[0016] The present invention also discloses a simulation test method of a rotation simulation test device based on large bearing processing, the method comprising the following steps: Step 1: First, place the large bearing to be tested between multiple contour clamping mechanisms located on the top of the test table; Step 2: Adjust the position of the rotary drive mechanism according to the size data of the large bearing. After the position of the rotary drive mechanism is determined according to the bearing to be tested, use the rotation simulation test power mechanism to drive the rotary drive mechanism to move downward, so as to synchronously drive the contour-profiling clamping mechanisms at multiple positions to simulate the clamping of the outer ring contour of the large bearing. The clamping ends of the multiple contour-profiling clamping mechanisms obtain the contour shape that matches the outer ring of the large bearing during the simulated clamping process, and then lock the contour shape obtained by the clamping end of the contour-profiling clamping mechanism; Step 3: Place the large bearings of the same batch between multiple profiling clamping mechanisms, use the rotation simulation test power mechanism to drive the rotary drive mechanism to move downward, and multiple profiling clamping mechanisms complete the profiling clamping of the large bearings. At the same time, the inner ring of the large bearing rotates rapidly under the drive of the rotary drive mechanism; Step 4: After the large bearing rotates at a preset speed for a preset time, the test is stopped, and then the wear condition of the large bearing after the test is analyzed and judged.

[0017] The present invention provides a rotation simulation test device and method based on large bearing processing. Compared with the prior art, it has the following beneficial effects: 1. A rotation simulation test device and method based on large-scale bearing processing. By setting a profiling clamping mechanism, when the profiling clamping mechanism contacts and generates relative extrusion with the outer wall of the bearing, multiple profiling clamping units inside the profiling clamping mechanism can move relatively under the extrusion force of the outer wall of the bearing, so that the ends of the multiple profiling clamping units can cooperate to form a shape that matches the contour of the outer wall of the bearing. In this case, the clamping ends of the multiple profiling clamping units can all fit tightly with the outer wall of the bearing to form a larger clamping surface together, so that a stable clamping force can be achieved on the outer wall of the bearing. Compared with the traditional clamping tooling that adopts point clamping or line clamping, the present invention can form a larger clamping surface for the outer wall of the bearing, so that the clamping force is evenly dispersed to multiple profiling clamping units, which can avoid the situation where the outer ring surface of the bearing is damaged due to the clamping force concentrated in a local position, thereby protecting the bearing.

[0018] 2. A rotation simulation test device and method based on large-scale bearing processing, wherein the clamping ends of multiple profiling clamping units in the profiling clamping mechanism can all move independently of each other when subjected to external force. Therefore, when performing rotation test clamping and fixing on bearings of different sizes and specifications, the clamping end of the profiling clamping mechanism can form a clamping shape that matches the outer wall of the bearings of different specifications, thereby being applicable to the clamping and fixing work of various bearings, greatly increasing the practicality of the profiling clamping mechanism; and after the position adjustment of the profiling clamping unit in each profiling clamping mechanism is completed, it can be quickly and synchronously locked, shortening the simulation profiling adjustment time of the profiling clamping mechanism, and before the next simulation profiling adjustment, the clamping end of the profiling clamping mechanism has a unique shape contour, so that after the profiling clamping mechanism completes the simulation clamping operation on the outer wall of a bearing, the profiling clamping mechanism can continue to be used for the profiling clamping operation in the subsequent rotation test on bearings of the same batch of specifications, without the need for re-adjustment, thereby saving the profiling adjustment time of the profiling clamping mechanism.

[0019] 3. A rotation simulation test device and method based on large-scale bearing processing, by setting a rotation drive mechanism, the movement of which can be linked with the clamping action of the contour clamping mechanism at multiple positions. During the downward movement of the rotation drive mechanism and before the internal expansion component completes the expansion and clamping of the inner ring of the bearing, the push rods at multiple positions can push the contour clamping mechanism at the corresponding position to move relatively synchronously, and can push the bearing whose position has not been restricted to the center position of each contour clamping mechanism, that is, directly below the internal expansion component, to achieve the correction effect on the bearing position, and lay the foundation for the internal expansion component to accurately enter the inner ring of the bearing; and when the bottom end of the internal expansion component contacts the top of the test bench to perform the expansion and clamping of the inner ring of the bearing, the push rods at multiple positions can continue to push the contour clamping mechanism at multiple positions to complete the clamping of the outer ring of the bearing, thereby realizing the synchronous clamping operation of the inner ring and outer ring of the bearing. Therefore, when a rotational driving force is applied to the internal expansion component, it can only drive the inner ring of the bearing to rotate synchronously, thereby simulating the effect of the bearing rotating in a real environment.

[0020] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 internal structure of the present invention; Figure 3 It is a structural schematic diagram of the assembly state of the rotation simulation test power mechanism, the detection box, the contour clamping mechanism, and the rotation drive mechanism of the present invention; Figure 4 It is a structural schematic diagram of the assembly state of the rotation simulation test power mechanism, the contour clamping mechanism and the rotation drive mechanism of the present invention; Figure 5 It is a schematic diagram of the first overall three-dimensional structure of the contour clamping mechanism of the present invention; Figure 6 It is a schematic diagram of a second overall three-dimensional structure of the contour clamping mechanism of the present invention; Figure 7 It is a schematic diagram of the bottom state structure of the contour clamping mechanism of the present invention; Figure 8 It is a schematic diagram of a first cross-sectional structure of the contour clamping mechanism of the present invention; Fig. 9 For the present invention Figure 8 A schematic diagram of the enlarged structure of part A; Fig.10 It is a second cross-sectional structural schematic diagram of the contour clamping mechanism of the present invention; Fig.11 It is a schematic cross-sectional structure diagram of the contour clamping unit of the present invention; Fig.12 For the present invention Fig.11 A schematic diagram of the enlarged structure of part B in FIG. Fig.13 This is a schematic diagram of the structure of the rotary drive mechanism of the present invention in an exploded state; Fig.14 For the present invention Fig.13 A schematic diagram of the enlarged structure of part C in FIG. Fig.15 This is a schematic diagram of the structure of the internal expansion component of the present invention; Fig.16 It is a schematic cross-sectional view of the internal expansion component of the present invention; Fig.17 For the present invention Fig.16 The D part in the figure is an enlarged schematic diagram of the structure.

[0022] In the figure: 1, test box; 2, protective door; 3, test table; 4, contour clamping mechanism; 41, slide rail; 42, slide seat; 43, bearing box; 44, wedge block No. 1; 45, cover plate; 46, baffle plate; 47, contour clamping unit; 471, clamping column; 472, limit groove; 473, long rod; 474, spring No. 1; 475, sleeve; 476, through groove; 477, elastic steel plate; 478, limit block; 479, drive sleeve; 4710, long push plate; 4711, connecting block; 48, push-pull plate; 49, screw; 410, side plate; 411, sliding sleeve; 41 2. Guide rod; 413. No. 2 spring; 5. Column; 6. Mounting seat; 7. Electric push rod; 8. Servo motor; 9. Rotary drive mechanism; 91. Internal expansion assembly; 911. Connecting shaft; 912. Cylinder; 913. No. 2 wedge block; 914. Guide groove; 915. Drive rod; 916. Clamping plate; 917. No. 3 spring; 918. Push rod; 919. Push plate; 9110. Turntable; 9111. No. 4 spring; 92. Ring frame; 93. Support arm; 94. Guide sleeve; 95. Push rod; 96. Roller; 97. Scale line groove; 98. Limit rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present invention provides three technical solutions: a rotation simulation test device based on large bearing processing, specifically including the following embodiments: like Figure 1-Figure 4 The first embodiment is shown: a rotation simulation test device based on large bearing processing, including a detection box 1 and a plurality of operation windows opened around the outer wall of the detection box 1, each operation window is provided with a protective door 2 inside which is hinged and rotatable, and also includes: The testing table 3 is fixedly arranged at the bottom of the cavity of the testing box 1 and is used to provide support for the large bearing rotation simulation test; A plurality of profiling clamping mechanisms 4 are arranged in a circular array on the top of the test platform 3, and are used to simulate the contour shape of the clamping end of the profiling clamping mechanism 4 according to the outer ring contour of the bearing to be tested, and then perform profiling clamping on the bearing to be tested through the clamping end adapted to the outer ring contour of the bearing to be tested; The rotary drive mechanism 9 is arranged above the test platform 3, and is used to expand and clamp the inner ring of the bearing to be tested, and at the same time provide driving force for multiple profiling clamping mechanisms 4 to perform profiling clamping on the outer ring of the bearing; The rotation simulation test power mechanism is arranged on one side of the test platform 3, and is used to drive the rotation drive mechanism 9 to move linearly upward or downward according to a preset program, and at the same time drive the rotation drive mechanism 9 to rotate in a circle.

[0025] The rotation simulation test power mechanism includes a column 5 fixedly arranged inside the detection box 1 and two guide rails fixedly arranged on the left and right sides of the front of the column 5. A mounting seat 6 is slidably sleeved on the outer walls of the two guide rails, and an electric push rod 7 is fixedly arranged on the top of the column 5. The output end of the electric push rod 7 is fixedly connected to the outer wall of the mounting seat 6. A motor mounting groove is opened inside the mounting seat 6, and a servo motor 8 is fixedly arranged in the motor mounting groove.

[0026] like Figure 5-Figure 12The second embodiment is shown, which differs from the first embodiment in that: the profiling clamping mechanism 4 includes two slide rails 41 detachably arranged on both sides of the top of the test platform 3, and a slide seat 42 is slidably sleeved on the outer wall of the two slide rails 41, and a clamping box assembly is commonly arranged on the top of the two slide seats 42, and a plurality of profiling clamping units 47 for synchronously clamping different positions of the outer wall of the bearing are evenly arranged inside the clamping box assembly, and one end of the plurality of profiling clamping units 47 is commonly connected to a push-pull plate 48, and the push-pull plate 48 is away from the profiling clamping A screw rod 49 is rotatably arranged on the side wall of the unit 47, and one end of the screw rod 49 is threadedly penetrated through the bearing box 43 and extends to the outside; a side plate 410 is fixedly arranged at one end of the two slide rails 41, and a guide rod 412 is also fixedly arranged on the side wall of the side plate 410, and a sliding sleeve 411 is slidably sleeved on the side of the outer wall of the guide rod 412 away from the side plate 410, and the sliding sleeve 411 is fixedly arranged on the bottom of the bearing box 43, and a second spring 413 is slidably sleeved on the outer wall of the guide rod 412 and between the side plate 410 and the sliding sleeve 411. The clamping box assembly includes a bearing box 43 fixedly arranged on the top of the two slide seats 42 at the same time, a first wedge block 44 is fixedly arranged at the middle position of the top of the bearing box 43, and a cover plate 45 is detachably arranged on the side wall of the bearing box 43, and a baffle plate 46 is fixedly arranged inside the bearing box 43, and a plurality of mounting through holes are evenly opened on the side wall of the baffle plate 46. The contoured clamping unit 47 includes a clamping column 471 that slides through the mounting hole and a plurality of limit grooves 472 that are evenly arranged on the outer wall of the clamping column 471. A locking pin assembly is sleeved on the outer wall of the clamping column 471 for locking the position of the clamping column 471. The locking pin assembly includes a sleeve 475 that is slidably sleeved on the outer wall of the clamping column 471. Through grooves 476 are arranged at relative positions on the upper and lower sides of the outer wall of the sleeve 475. An elastic steel plate 477 is fixedly arranged inside each through groove 476. A limit block 478 is fixedly arranged at the bottom of the elastic steel plate 477 for cooperating with the limit groove 472 to lock the position of the clamping column 471.The sleeve 475 is fixedly arranged on the inner wall of the cover plate 45, and the elastic steel plate 477 is inclined in the direction away from the clamping column 471. When the driving sleeve 479 is in the initial state, the elastic steel plate 477 is not pushed by the driving sleeve 479, so that the limit block 478 is in a position away from the limit groove 472. When the driving sleeve 479 slides in the direction of the limit block 478, the two elastic steel plates 477 approach the position of the clamping column 471 at the same time, and the limit block 478 enters one of the limit grooves 472 to complete the locking of the position of the clamping column 471; the sliding sleeve on the outer wall of the sleeve 475 is provided with a member for simultaneously pushing the two elastic steel plates 477 to close to each other The driving sleeve 479 is close to the driving sleeve 479, and a long push plate 4710 is fixedly provided on both sides of the outer wall of the driving sleeve 479. The two long push plates 4710 slide through the baffle 46 and are fixedly provided with a connecting block 4711 at the same time. The connecting block 4711 is fixedly provided on the side wall of the push-pull plate 48 by bolts. A movable hole is opened at one end of the clamping column 471 close to the connecting block 4711, and a long rod 473 is slidably provided inside the movable hole. The end of the long rod 473 away from the clamping column 471 is fixedly provided on the side wall of the baffle 46, and a No. 1 spring 474 is provided on the outer wall of the long rod 473 and is located between the clamping column 471 and the baffle 46 for sliding sleeve. A rubber protective pad is fixedly provided at one end of the clamping column 471 away from the connecting block 4711, which is used to prevent slipping when clamping the bearing and to protect the outer wall of the bearing at the same time; when the clamping column 471 slides along the outer wall of the long rod 473 toward the inside of the carrying box 43 to the extreme position, only the rubber protective pad at the end of the clamping column 471 is exposed to the outside of the carrying box 43.

[0027] like Figure 13-Figure 17A third embodiment is shown, which differs from the second embodiment in that: the rotary drive mechanism 9 includes an internal expansion component 91 connected to the output shaft of the servo motor 8, which is used to expand and clamp the inner ring of the bearing. The outer wall of the internal expansion component 91 is also sleeved with a power component for cooperating with multiple contour clamping mechanisms 4 to simultaneously drive multiple contour clamping mechanisms 4 to complete the clamping operation of the outer ring of the bearing; the power component includes an annular frame 92 and multiple support arms 93 evenly fixedly arranged on the outer wall of the annular frame 92, and each support arm 93 is fixedly provided with a guide sleeve 94 at one end away from the annular frame 92, and a push rod 95 is slidably arranged inside the guide sleeve 94, and the push rod 95 and the guide sleeve 94 are locked in position by fastening bolts, and a roller 96 is provided at the bottom end of the push rod 95 through a rotating shaft, and multiple scale line grooves 97 are evenly opened on the side wall of the push rod 95, and a limit rod 98 is fixedly arranged at the top of one of the support arms 93. The front of the mounting seat 6 is provided with a limiting groove adapted to the limiting rod 98, and the limiting rod 98 is slidably arranged in the limiting groove to ensure that the power component can only move up and down and will not rotate with the internal expansion component 91; the positions of multiple push rods 95 and multiple contour clamping mechanisms 4 correspond one to one, and the push rods 95 are located above the No. 1 wedge block 44 in the contour clamping mechanism 4 at the corresponding position; the annular frame 92 is rotatably sleeved on the outer wall of the connecting shaft 911; the internal expansion component 91 includes a connecting shaft 911 and a cylinder 912 fixedly arranged at the bottom end of the connecting shaft 911, and the interior of the cylinder 912 is evenly provided with multiple expansion clamping units for expanding and clamping different positions of the inner wall of the inner ring of the bearing, and a cylinder 912 for expanding and clamping the inner wall of the inner ring of the bearing is also provided at the inner center position of the cylinder 912. An internal expansion control unit is used to control multiple expansion and clamping units to move away from or approach each other. The expansion and clamping unit includes a No. 2 wedge block 913 movably arranged in the cylinder 912. A guide groove 914 is opened on the inclined surface of the No. 2 wedge block 913, and two driving rods 915 are fixedly arranged on the side walls opposite to the No. 2 wedge block 913 and the guide groove 914. The two driving rods 915 slide through the cylinder 912 and are fixedly provided with a clamping plate 916. A No. 3 spring 917 is slidably sleeved on the outer wall of the driving rod 915 and on the opposite side walls of the No. 2 wedge block 913 and the cylinder 912; a rubber guard plate is fixedly arranged on the outer wall of the clamping plate 916 to increase the friction between it and the inner ring of the bearing and prevent the inner ring of the bearing from being damaged during the clamping process.The internal expansion control unit includes a push rod 918 that slides through the cylinder 912, and an outward push plate 919 corresponding to the position of the No. 2 wedge block 913 is evenly fixed on the outer wall of the push rod 918 and located inside the cylinder 912. Each outward push plate 919 is slidably set in a guide groove 914 at a corresponding position. A turntable 9110 is also rotatably set at the bottom end of the push rod 918, and a spring limiting ring is provided on the outer wall of the push rod 918 and located on the outside of the cylinder 912. A No. 4 spring 9111 is provided on the outer wall of the push rod 918 and located between the spring limiting ring and the cylinder 912.

[0028] The embodiment of the present invention also provides a simulation test method of a rotation simulation test device based on large bearing processing, the method comprising the following steps: Step 1: First, place the large bearing to be tested between multiple contour clamping mechanisms 4 located on the top of the test table 3; The specific process is as follows: one of the batches of large bearings to be tested is taken and placed between the multiple contoured clamping mechanisms 4 located on the top of the test bench 3. Since the initial position of the rotary drive mechanism 9 is a preset fixed value, and the electric push rod 7 can drive the rotary drive mechanism 9 to move down a preset distance according to the preset control program, in this case, after the turntable 9110 contacts the top of the test bench 3, it is pushed up to the preset distance by the upward force of the test bench 3. During the upward movement of the push rod 918, the multiple No. 2 wedge blocks 913 can be pushed by the outer push plates 919 at the corresponding positions and move in the direction away from the center of the cylinder 912, so that the clamping plates 916 at multiple positions move synchronously to the position away from the cylinder 912, and the circular diameter data formed by the multiple clamping plates 916 after unfolding is a preset known value, and based on the original data, if the downward movement distance of the output end of the electric push rod 7 increases by one millimeter, the movement distance of the clamping plate 916 to the outside of the cylinder 912 increases by one millimeter; After the output end of the electric push rod 7 moves down to a preset distance according to the initial preset program, the multiple push rods 95 can move down synchronously with the internal expansion assembly 91, and under this working condition, the bottom ends of the multiple push rods 95 at the initial positions are respectively in contact with the higher positions of the slope surface of the No. 1 wedge block 44 at the corresponding positions, and the roller 96 can slide down the slope surface of the No. 1 wedge block 44 at the corresponding position by a preset distance, and the No. 1 wedge blocks 44 at the multiple positions are synchronously moved to the center position of the detection table 3 by a known preset distance under the push of the roller 96 at the corresponding position, and the circular outer diameter size formed by the cover plates 45 in the multiple profiling clamping mechanisms 4 is also a known value, and based on the original data, each time the push rod 95 moves down a scale distance, it can push the profiling clamping mechanism 4 to move one millimeter toward the center position of the detection table 3, so that the circular outer diameter formed by the relative side walls of the cover plates 45 in the multiple profiling clamping mechanisms 4 is reduced by one millimeter; Based on the various data of the initial state of the rotation simulation test device based on large bearing processing, the large bearings of the batch to be tested can be first simulated clamped; During the simulated clamping, the large bearing to be tested is first placed on the top of the test table 3 and located between the multiple contoured clamping mechanisms 4. Since the size data of the large bearing to be tested is known, the height of the electric push rod 7 moving downward is adjusted according to the size data of the large bearing, so that the outer diameter of the circle formed by the multiple clamping plates 916 when stretched out is larger than the inner diameter of the inner ring of the large bearing to be tested by two millimeters, and since the rubber guard on the outer wall of the clamping plate 916 can produce a certain elastic deformation, it can be ensured that the clamping plate 916 can stably support and clamp the inner wall of the inner ring of the large bearing; Then, the height of the bottom end of the push rod 95 at multiple positions is adjusted by using multiple operation windows around the outer wall of the detection box 1. When adjusting the height of the bottom end of the push rod 95, first release the fastening bolts between the push rod 95 and the guide sleeve 94, and then move the push rod 95 upward or downward relative to the position of the bottom end of the guide sleeve 94 with reference to the scale groove 97, to ensure that after the adjusted multiple push rods 95 push the No. 1 wedge blocks 44 at the corresponding positions to approach each other, the circular outer diameter formed by the relative side walls of the cover plates 45 in the multiple contoured clamping mechanisms 4 is slightly larger than the outer diameter size of the outer ring of the large bearing to be tested. That is, the difference between the circular outer diameter formed by the relative side walls of the cover plates 45 in the multiple profiling clamping mechanisms 4 and the outer diameter of the large bearing outer ring is slightly larger than the thickness of the rubber pad at the end of the clamping column 471, ensuring that the profiling clamping units 47 at multiple positions can be pushed by the side wall of the large bearing outer ring and move into the bearing box 43. In this process, the ends of the multiple clamping columns 471 are in contact with the outer wall of the large bearing outer ring. At the initial clamping stage, the large bearing moves to the center position between the multiple profiling clamping mechanisms 4 under the mutual thrust of the multiple profiling clamping mechanisms 4. After the large bearing position moves to the center position of the plurality of contour clamping mechanisms 4, the clamping columns 471 in the plurality of contour clamping mechanisms 4 continue to approach the large bearing, so that the outer wall of the large bearing generates a reaction force on the clamping columns 471, so that the clamping columns 471 slide along the outer wall of the long rod 473 toward the inside of the bearing box 43, until the plurality of clamping columns 471 are all moved under the reaction force of the outer wall of the large bearing. After the position adjustment of the push rod 95 is completed, the push rod 95 and the guide sleeve 94 are locked by the fastening bolts, and then the screw 49 is turned clockwise. The bearing boxes 43 are connected by threads, the screw rod 49 pushes the push-pull plate 48 toward the baffle plate 46, and the connecting block 4711 drives the long push plate 4710 to push the driving sleeve 479 to slide along the outer wall of the sleeve 475 under the push of the baffle plate 46. The elastic steel plate 477 is squeezed by the long push plate 4710 and moves toward the inside of the through groove 476. The limit block 478 enters into one of the limit grooves 472 during the downward movement, so that the position of the clamping column 471 is locked, and the ends of the clamping columns 471 at multiple positions jointly form a contour shape that matches the outer ring of the large bearing. During the formal test, the large bearing is first placed on the middle area of ​​the top of the test bench 3, and then the electric push rod 7 is started to drive the mounting seat 6 to move down to the adjusted preset height. When the turntable 9110 is close to the top of the test bench 3 and does not contact the test bench 3, the rollers 96 at multiple positions first contact the higher position of the slope surface of the No. 1 wedge block 44 at the corresponding position, and push the No. 1 wedge blocks 44 at multiple positions to approach each other as the rollers 96 continue to move downward. At the same time, after the large bearing contacts the ends of the multiple clamping columns 471, it moves to the center position between the multiple contour clamping mechanisms 4 under the mutual thrust of the clamping columns 471 in the contour clamping mechanisms 4 at different positions, and moves to the center position of the multiple contour clamping mechanisms 4 at the large bearing position. Afterwards, the clamping columns 471 in the multiple contoured clamping mechanisms 4 continue to approach the large bearing. At the same time, the turntable 9110 is pushed upward by the top of the inspection table 3. The turntable 9110 synchronously pushes the multiple outer push plates 919 upward along the guide grooves 914 at the corresponding positions. Under the driving force of the outer push plates 919, the multiple No. 2 wedge blocks 913 synchronously push the driving rods 915 at the corresponding positions to move toward the outside of the cylinder 912. Then, the clamping plates 916 fixedly connected to the driving rods 915 move synchronously outward. The clamping plates 916 contact the inner wall of the inner ring of the large bearing and form an extrusion force on the inner wall of the inner ring, thereby completing the expansion and clamping of the inner wall of the inner ring of the large bearing. At the same time, the multiple clamping columns 471 form a clamping force on the outer wall of the outer ring of the large bearing. Next, the servo motor 8 drives the connecting shaft 911 to rotate at high speed. Since the inner ring of the large bearing is clamped by the clamping plate 916, it rotates synchronously with the internal expansion component 91. Since the limit rod 98 is limited by the upper limit slide groove on the front side of the mounting seat 6, it can ensure that the annular frame 92 can move up and down synchronously with the internal expansion component 91 and can rotate relative to the connecting shaft 911; when the test is completed, the electric push rod 7 is started again to drive the rotation drive mechanism 9 to move upward. After the contoured clamping mechanism 4 at multiple positions loses the force of the push rod 95 at the corresponding position, the elastic force of the No. 2 spring 413 pushes the bearing box 43 to return to its original position. At this time, the tested large bearing can be removed from the top of the test bench 3 for research, and the wear of the large bearing during the test time can be analyzed.

[0029] Step 2: adjust the position of the rotary drive mechanism 9 according to the size data of the large bearing. After the position of the rotary drive mechanism 9 is determined according to the bearing to be tested, use the rotation simulation test power mechanism to drive the rotary drive mechanism 9 to move downward, so as to synchronously drive the contour-profiling clamping mechanisms 4 at multiple positions to simulate the clamping of the outer ring contour of the large bearing. The clamping ends of the multiple contour-profiling clamping mechanisms 4 obtain the contour shape that matches the outer ring of the large bearing during the simulated clamping process, and then lock the contour shape obtained by the clamping end of the contour-profiling clamping mechanism 4; Step 3: Place the large bearings of the same batch between multiple profiling clamping mechanisms 4, use the rotation simulation test power mechanism to drive the rotary drive mechanism 9 to move downward, and multiple profiling clamping mechanisms 4 complete the profiling clamping of the large bearings. At the same time, the inner ring of the large bearing rotates rapidly under the drive of the rotary drive mechanism 9; Step 4: After the large bearing rotates at a preset speed for a preset time, the test is stopped, and then the wear condition of the large bearing after the test is analyzed and judged.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotation simulation test device based on large bearing processing, comprising a detection box and a plurality of operation windows opened around the outer wall of the detection box, each of the operation windows is provided with a protective door inside which is hinged and rotatable, characterized in that: Also includes: The test table is fixedly arranged at the bottom of the cavity of the test box and is used to provide support for the large bearing rotation simulation test; A plurality of profiling clamping mechanisms are arranged in a circular array on the top of the test table, and are used to simulate the contour shape of the clamping end of the profiling clamping mechanism according to the outer ring contour of the bearing to be tested, and then perform profiling clamping on the bearing to be tested through the clamping end adapted to the outer ring contour of the bearing to be tested; The rotary drive mechanism is arranged above the test table and is used to expand and clamp the inner ring of the bearing to be tested, and at the same time provide driving force for multiple profiling clamping mechanisms to profiling the outer ring of the bearing; The rotation simulation test power mechanism is arranged on one side of the test platform, and is used to drive the rotation drive mechanism to move linearly upward or downward according to a preset program, and simultaneously drive the rotation drive mechanism to rotate in a circle.

2. A rotation simulation test device based on large bearing processing according to claim 1, characterized in that: The rotation simulation test power mechanism includes a column fixedly arranged inside the detection box and two guide rails fixedly arranged on the left and right sides of the front side of the column, a mounting seat is slidably sleeved on the outer walls of the two guide rails, and an electric push rod is also fixedly arranged on the top of the column, the output end of the electric push rod is fixedly connected to the outer wall of the mounting seat, a motor mounting groove is opened inside the mounting seat, and a servo motor is fixedly arranged in the motor mounting groove.

3. A rotation simulation test device based on large bearing processing according to claim 1, characterized in that: The profiling clamping mechanism comprises two slide rails detachably arranged on both sides of the top of the detection platform, a slide seat is slidably sleeved on the outer wall of the two slide rails, a clamping box assembly is commonly arranged on the top of the two slide seats, a plurality of profiling clamping units for synchronously clamping different positions of the outer wall of the bearing are evenly arranged inside the clamping box assembly, one end of the plurality of profiling clamping units is commonly connected to a push-pull plate, and a screw rod is rotatably arranged on the side wall of the push-pull plate away from the profiling clamping unit, one end of the screw rod is threadedly penetrated through the bearing box and extends to the outside; A side plate is fixedly provided at one end of the two slide rails, a guide rod is also fixedly provided on the side wall of the side plate, a sliding sleeve is provided on the outer wall of the guide rod on the side away from the side plate, the sliding sleeve is fixedly provided at the bottom of the carrying box, and a No. 2 spring is provided on the outer wall of the guide rod and between the side plate and the sliding sleeve.

4. A rotation simulation test device based on large bearing processing according to claim 3, characterized in that: The clamping box assembly includes a carrying box fixedly arranged on the top of two slide seats at the same time, a wedge block No. 1 is fixedly arranged in the middle position of the top of the carrying box, and a cover plate is detachably arranged on the side wall of the carrying box, a baffle is fixedly arranged inside the carrying box, and a plurality of mounting through holes are evenly opened on the side wall of the baffle.

5. A rotation simulation test device based on large bearing processing according to claim 4, characterized in that: The contoured clamping unit includes a clamping column that slides through the mounting hole and a plurality of limit grooves evenly arranged on the outer wall of the clamping column. A locking pin assembly for locking the position of the clamping column is sleeved on the outer wall of the clamping column. The locking pin assembly includes a sleeve that is slidably sleeved on the outer wall of the clamping column. Through grooves are arranged at relative positions on the upper and lower sides of the outer wall of the sleeve. An elastic steel plate is fixedly arranged inside each of the through grooves. A limit block is fixedly arranged at the bottom of the elastic steel plate for use in conjunction with the limit groove to lock the position of the clamping column.

6. A rotation simulation test device based on large bearing processing according to claim 5, characterized in that: A driving sleeve is provided on the outer wall of the sleeve for simultaneously pushing the two elastic steel plates towards each other. A long push plate is fixedly provided on both sides of the outer wall of the driving sleeve. The two long push plates slide through the baffle and are fixedly provided with connecting blocks. The connecting blocks are fixedly provided on the side walls of the push-pull plates by bolts. A movable hole is provided at one end of the clamping column close to the connecting block. A long rod is slidably provided inside the movable hole. One end of the long rod away from the clamping column is fixedly provided on the side wall of the baffle. A No. 1 spring is provided on the outer wall of the long rod and the sliding sleeve is located between the clamping column and the baffle.

7. A rotation simulation test device based on large bearing processing according to claim 1, characterized in that: The rotary drive mechanism includes an internal expansion component connected to the output shaft of the servo motor, which is used to expand and clamp the inner ring of the bearing. The outer wall of the internal expansion component is also sleeved with a power component used to cooperate with multiple contour clamping mechanisms to simultaneously drive the multiple contour clamping mechanisms to complete the clamping operation of the outer ring of the bearing; The power assembly includes an annular frame and a plurality of support arms evenly fixed on the outer wall of the annular frame, a guide sleeve is fixedly provided at one end of each support arm away from the annular frame, a push rod is slidably provided inside the guide sleeve, and the push rod and the guide sleeve are locked in position by a fastening bolt, a roller is provided at the bottom end of the push rod via a rotating shaft, and a plurality of scale line grooves are evenly provided on the side wall of the push rod, and a limit rod is fixedly provided at the top of one of the support arms.

8. The rotation simulation test device based on large bearing processing according to claim 7 is characterized in that: The internal expansion component includes a connecting shaft and a cylinder fixedly arranged at the bottom end of the connecting shaft, and a plurality of expansion and clamping units for expanding and clamping different positions of the inner wall of the inner ring of the bearing are evenly arranged inside the cylinder, and an internal expansion control unit for simultaneously controlling the plurality of expansion and clamping units to move away from or approach each other is also arranged at the inner center position of the cylinder, and the expansion and clamping unit includes a No. 2 wedge block movably arranged in the cylinder, a guide groove is opened on the inclined surface of the No. 2 wedge block, and two driving rods are fixedly arranged on the side walls opposite to the No. 2 wedge block and the guide groove, the two driving rods slide through the cylinder and are fixedly provided with clamping plates, and a No. 3 spring is slidably sleeved on the outer wall of the driving rod and on the opposite side walls of the No. 2 wedge block and the cylinder.

9. A rotation simulation test device based on large bearing processing according to claim 8, characterized in that: The internal expansion control unit includes a push rod that slides through the cylinder, and an outer push plate corresponding to the position of the No. 2 wedge block is evenly fixed on the outer wall of the push rod and located inside the cylinder. Each of the outer push plates is slidably arranged in a guide groove at a corresponding position. A turntable is also rotatably arranged at the bottom end of the push rod, and a spring limiting ring is provided on the outer wall of the push rod and located on the external fixed sleeve of the cylinder, and a No. 4 spring is provided on the outer wall of the push rod and located on the sliding sleeve between the spring limiting ring and the cylinder.

10. A simulation test method for implementing the rotation simulation test device based on large bearing processing according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: First, place the large bearing to be tested between multiple contour clamping mechanisms located on the top of the test table; Step 2: Adjust the position of the rotary drive mechanism according to the size data of the large bearing. After the position of the rotary drive mechanism is determined according to the bearing to be tested, use the rotation simulation test power mechanism to drive the rotary drive mechanism to move downward, so as to synchronously drive the contour-profiling clamping mechanisms at multiple positions to simulate the clamping of the outer ring contour of the large bearing. The clamping ends of the multiple contour-profiling clamping mechanisms obtain the contour shape that matches the outer ring of the large bearing during the simulated clamping process, and then lock the contour shape obtained by the clamping end of the contour-profiling clamping mechanism; Step 3: Place the large bearings of the same batch between multiple profiling clamping mechanisms, use the rotation simulation test power mechanism to drive the rotary drive mechanism to move downward, and multiple profiling clamping mechanisms complete the profiling clamping of the large bearings. At the same time, the inner ring of the large bearing rotates rapidly under the drive of the rotary drive mechanism; Step 4: After the large bearing rotates at a preset speed for a preset time, the test is stopped, and then the wear condition of the large bearing after the test is analyzed and judged.

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