Dynamic performance simulation test equipment for corrosion-resistant high-dynamic-load hub bearing

Abstract

The corrosion-resistant high-dynamic-load hub bearing dynamic performance simulation test equipment comprises a workbench, a driving wheel is arranged above one side of the workbench, a bearing piece used for bearing the driving wheel is arranged at the top of one side of the workbench, a driving piece used for driving the driving wheel is arranged on one side of the bearing piece, and the driving piece is arranged on the other side of the workbench. A mounting plate is fixedly mounted at the top of the other side of the workbench, a square hole is formed in the upper portion of one side of the mounting plate, a round rod is connected to an inner cavity of the square hole through a rotary connecting piece, and a testing bearing is connected to one end, located above the driving wheel, of the round rod through a fixed connecting piece; according to the invention, an integrated test platform capable of comprehensively simulating the actual working state of the test bearing is established, and various performances such as rotation, steering, loading and corrosion resistance of the test bearing can be comprehensively tested at the same time, so that the test efficiency and comprehensiveness are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of dynamic performance simulation test equipment for hub bearings, and particularly relates to dynamic performance simulation test equipment for corrosion-resistant high-dynamic-load hub bearings. Background Art

[0002] Since the life and performance of vehicle hub bearings are directly related to the safety, steering smoothness and comfort of vehicles, it is necessary to conduct simulation tests on vehicle hub bearings under various working conditions. In production practice, vehicle OEMs and hub bearing manufacturers usually use hub bearing fatigue life test machines to simulate the working conditions of hub bearings on vehicles and measure relevant data during the test, so as to evaluate the fatigue life of hub bearings using the data obtained from the test.

[0003] Chinese Patent with publication number CN117129214B discloses a durability test device for hub bearings, which relates to the field of hub bearing durability testing. It includes a test frame. The right end of the rear side wall of the test frame is hinged with a protective cover. A heat dissipation fan is rotatably connected to the middle of the left side wall of the test frame. The right side of the front side wall of the test frame is hinged with a front baffle. The middle of the right side wall of the front baffle is hinged with a flip plate. A plug is slidably connected to the middle of the front side wall of the flip plate. By placing the inner ring of the bearing on the outer side wall of the top support plate and then rotating the rotating head, the position of the adjusting shaft seat on the threaded rod is changed by the rotating head, so as to change the distance between the adjusting shaft seat and the fixed shaft seat. The support plate is lifted by six support columns to make the support plate away from the threaded rod, so as to support the inner ring of the bearing through the support plate and facilitate the fixing of the bearing. It solves the problems of long bearing test cycle, high bearing temperature, large deviation in test accuracy, and splashing of debris, with relatively high danger.

[0004] Although the above-mentioned durability test device for hub bearings can solve the problems of long bearing test cycle, high bearing temperature, large deviation in test accuracy, and splashing of debris, with relatively high danger, it lacks a mechanism for applying complex loads such as bending moment and torque, and it is difficult to simulate the multi-degree-of-freedom force-bearing state of hub bearings in scenarios such as vehicle steering and bumpiness.

[0005] Therefore, a dynamic performance simulation test equipment for corrosion-resistant high-dynamic-load hub bearings is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide dynamic performance simulation test equipment for corrosion-resistant high-dynamic-load hub bearings to solve the technical defect that existing hub bearing performance test devices are difficult to simulate the force-bearing conditions of hub bearings under multi-scenario use.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test device comprises a workbench, a driving wheel is arranged above one side of the workbench, a bearing member for bearing the driving wheel is arranged on the top of one side of the workbench, a driving member for driving the driving wheel is arranged on one side of the bearing member, a mounting plate is fixedly installed on the top of the other side of the workbench, a square hole is opened on the upper part of one side of the mounting plate, a round rod is connected to the inner cavity of the square hole through a rotating connecting member, one end of the round rod located above the driving wheel is connected to a test bearing through a fixed connecting member, the bottom of the test bearing contacts the surface of the driving wheel, a toggle member for toggling the round rod to simulate the working state of the test bearing when turning is arranged on the top of the other side of the mounting plate, a spray assembly for spraying a solution onto the surface of the test bearing to test the corrosion resistance of the test bearing is arranged at one end of the round rod, and a control assembly for controlling the toggle member and the spray assembly is arranged on the other side of the mounting plate.

[0009] As a further solution of the present invention, the supporting member includes a linear slide rail fixedly connected to the top of one side of the workbench, a base plate is provided on the top of one side of the workbench, the bottom surface of the base plate is slidably connected to the surface of the linear slide rail, the tops of both sides of the base plate are respectively connected to support plates through height adjustment members, and the driving wheel is rotatably connected between the two groups of support plates.

[0010] The driving member comprises a driving motor fixedly mounted on the upper outer side of a supporting plate away from the mounting plate, and an output shaft of the driving motor is connected with the wheel axle of the driving wheel through a coupling.

[0011] The rotating connecting part includes rotating columns which are respectively rotatably connected to the middle parts of the inner walls on the upper and lower sides of the square hole, a group of square frames are fixedly connected between the two groups of rotating columns, the middle part of the round rod is located in the inner cavity of the square frame, and circular grooves are provided on both sides of the round rod located in the inner cavity of the square frame. Fixed columns are rotatably inserted into the inner cavities of the two groups of circular grooves, and the ends of the two groups of fixed columns are respectively fixedly connected to the middle parts of the corresponding side inner walls of the square frame.

[0012] The fixed connecting part includes a working rod inserted into the inner ring of the test bearing, one end of the working rod is connected to the end of the round rod through a detachable connecting part, and the other end of the working rod is fixedly connected to a threaded column, and the surface of the threaded column is threadedly connected to a nut for fixing the inner ring of the test bearing.

[0013] The working rod and the bottom surface of the threaded column are provided with an installation groove, and the inner cavity of the installation groove is fixedly installed with a temperature sensor. The detection end of the temperature sensor contacts the inner wall surface of the inner ring of the test bearing so as to monitor the temperature of the test bearing. The temperature sensor is connected to the control component.

[0014] The toggle member includes a square ring arranged on the outside of the other side of the mounting plate, the square ring and the round rod are arranged in parallel, a toggle rod is inserted into the inner cavity of the square ring, one end of the toggle rod extends downward and is fixedly connected to the top surface of the corresponding side of the round rod, when the square ring moves to one side, one end of the round rod is driven by the toggle rod to swing to one side at the same time, thereby simulating the working state of the test bearing when turning, and a lateral movement component for lateral movement of the square ring is arranged on the upper part of the other side of the mounting plate and at a position corresponding to the end of the square ring, and a pulling member is arranged on the outer end of the square frame for pulling one end of the round rod upward to move the other end of the round rod downward to apply a load to the test bearing.

[0015] The spray assembly includes a spray head arranged above the end of the round rod, the outer cylindrical surface of the spray head is fixed with a fixing ring, the fixing ring is fixedly connected to the top of the round rod, and the other side of the mounting plate is provided with a pumping assembly for pumping solution into the spray head.

[0016] A linkage fork is sleeved on the surface of the round rod, and the linkage fork is fixedly connected to the top of one group of support plates.

[0017] As a further solution of the present invention, the height adjustment component includes slots opened at the bottom of the two groups of support plates, the inner cavities of the two groups of slots are connected with plug-in plates, the two groups of plug-in plates are fixedly connected to the top of the corresponding sides of the bottom plate, a group of fixing plates are fixedly connected to the lower part of the opposite side of the two groups of support plates, and a height adjustment component for adjusting the height of the fixing plate and thereby adjusting the height of the driving wheel is provided in the middle of the fixing plate, and one side surface of the two groups of support plates is provided with a fixing component for being fixedly connected to the corresponding side plug-in plate.

[0018] The height adjustment component comprises a hand screw bolt which is threadedly connected to the middle of the fixing plate, a T-shaped rod is fixedly connected to the bottom of the hand screw bolt, and the T-shaped rod is rotatably plugged into the surface of the bottom plate.

[0019] As a further solution of the present invention, the fixing assembly includes limiting holes respectively opened on the upper part of the opposite side of the two groups of support plates and connected to the corresponding side slots, the inner cavities of the two groups of limiting holes are provided with fixing bolts, one ends of the two groups of fixing bolts are respectively fixedly connected to the surface of the plug plate, and the other ends of the two groups of fixing bolts are respectively threadedly connected with fixing nuts, and the two groups of fixing nuts respectively contact the surface of the corresponding side support plates.

[0020] As a preferred embodiment of the present invention, the lateral movement component includes a strip groove opened on the upper part of the other side of the mounting plate, the inner cavity of the strip groove is rotatably connected to a lead screw, and a servo motor is embedded in the upper part of the other side of the mounting plate and on one side of the strip groove. The output shaft of the servo motor extends to the inner cavity of the strip groove and is connected to the end of the lead screw through a coupling, and a connecting seat is threadedly connected to the surface of the lead screw, and one side of the connecting seat is fixedly connected to the end surface of the square ring.

[0021] As a preferred embodiment of the present invention, the pulling assembly includes a circular ring fixedly connected to the end of the square ring. An electric push rod is fixedly inserted into the inner cavity of the circular ring. The telescopic end of the electric push rod is fixedly connected to a connecting ring. A circular rod is inserted into the inner cavity of the connecting ring. Connecting strips are fixedly connected to both ends of the circular rod, and the other ends of the two connecting strips are fixedly connected to the end of the round rod.

[0022] As a preferred embodiment of the present invention, the pumping assembly includes a solution tank inserted into the top of one end of the mounting plate. An observation port is provided on one side of the mounting plate and at the lower position of the solution tank. A water pump is fixedly connected to one side of the mounting plate. The input end of the water pump is communicated with the inner cavity of the solution tank. The output end of the water pump is communicated with a delivery pipe. The other end of the delivery pipe bends upward and is communicated with a rotary joint. A communicating pipe is inserted into the inside of the round rod. One end of the communicating pipe communicates upward with the input end of the nozzle. The other end of the communicating pipe bends downward and is communicated with a rubber pipe. The other end of the rubber pipe is communicated with the rotary joint.

[0023] As a preferred embodiment of the present invention, the detachable connecting member includes a hexagonal groove opened at the end of the round rod. A hexagonal block is inserted into the inner cavity of the hexagonal groove. A limit bolt is provided above the end of the round rod. The end of the limit bolt sequentially penetrates downward through the round rod and the hexagonal block. The end of the limit bolt located below the round rod is threadedly connected to a limit nut, and the top of the limit nut contacts the surface of the round rod.

[0024] As a preferred embodiment of the present invention, the control assembly includes a controller fixedly installed on the other surface of the mounting plate. The driving motor, the servo motor, the electric push rod, and the water pump are all controlled by the controller. An operation screen is provided on the upper part of the other side of the mounting plate. The output end of the operation screen is electrically connected to the input end of the controller through a wire.

[0025] As a further preferred embodiment of the present invention, water collecting boxes are fixedly connected to both the left and right parts of one side of the mounting plate. Protective covers are provided at the top of both sides of the two water collecting boxes. The mouths of the protective covers are arranged oppositely and can block the solution splashed during the test. The bottoms of the two protective covers are respectively communicated with the inner cavities of the corresponding water collecting boxes.

[0026] Compared with the prior art, the corrosion-resistant high-dynamic load hub bearing dynamic performance simulation test equipment of the present invention has the following beneficial effects:

[0027] 1. The equipment builds an integrated test platform that can fully simulate the actual working state of the test bearing through the setting of load-bearing parts, rotating connecting parts, toggle parts, and spraying components. It can simultaneously conduct comprehensive tests on the rotation, steering, load and corrosion resistance of the test bearing and other performances. Compared with the traditional single performance test method, it greatly improves the test efficiency and comprehensiveness, and provides richer and more accurate data basis for evaluating the performance of the test bearing. In addition, the various components work together to truly simulate various working conditions of the test bearing in actual application scenarios. For example, the driving wheel provides rotational power to simulate normal operation, the toggle part simulates steering, and the spray component simulates corrosive environment, etc., so that the test results are more in line with actual usage and enhance the reliability and effectiveness of the test.

[0028] 2. The equipment is equipped with a linkage fork. The linkage fork set on the surface of the round rod is fixedly connected to the support plate. When the round rod swings to simulate the turning of the test bearing, the linkage fork drives the support plate to move, ensuring that the test bearing always maintains good contact with the drive wheel, avoiding the loss of contact between the two during the test and affecting the test results, thereby improving the stability and reliability of the test process.

[0029] 3. The equipment realizes centralized and automatic control of drive motors, servo motors, electric push rods, water pumps and other equipment through the setting of control components. The operator only needs to set the relevant data parameters on the operation screen to easily control the entire test process, including the rotation of the test bearing, steering simulation, load application, solution spraying and other operations. It not only improves the test efficiency, but also reduces the errors that may be caused by manual operation, ensures the accuracy and consistency of the test process, and facilitates the operator to monitor the test status in real time and make adjustments according to actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 The structure of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of the opening position of the square hole in an embodiment of the present invention;

[0033] Figure 3 The structure of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 4 It is a schematic cross-sectional structural diagram of a square frame in an embodiment of the present invention;

[0035] Figure 5 This is a schematic cross-sectional structure diagram of the round rod in the embodiment of the present invention;

[0036] Figure 6 This is a schematic cross-sectional structure diagram of a group of support plates in the embodiment of the present invention.

[0037] Reference numerals:

[0038] 100, workbench; 101, mounting plate; 102, water collecting box; 103, protective cover; 104, linear slide rail; 105, round rod; 106, linkage fork; 107, square hole; 108, square frame; 109, rotating column; 110, fixed column; 111, circular groove; 112, test bearing;

[0039] 200, bottom plate; 201, insertion plate; 203, fixing nut; 204, fixing bolt; 205, support plate; 206, hand-tightening bolt; 207, slot; 208, fixing plate; 209, T-shaped rod; 210, limiting hole;

[0040] 300, driving motor; 301, driving wheel;

[0041] 400, threaded column; 401, temperature sensor; 402, mounting groove; 403, nut; 404, working rod; 405, hexagonal block; 406, hexagonal groove; 407, limiting bolt; 408, limiting nut;

[0042] 500, spray head; 501, fixing ring; 502, connecting pipe; 503, solution tank; 504, observation port; 505, water pump; 506, delivery pipe; 507, rubber pipe; 508, rotary joint;

[0043] 600, strip-shaped groove; 601, lead screw; 602, connecting seat; 604, square ring; 605, servo motor; 606, dial rod; 607, circular ring; 608, electric push rod; 609, connecting ring; 610, circular rod; 611, connecting strip;

[0044] 700, operation screen; 701, controller. Detailed implementation manners

[0045] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer and more understandable, the following further details the embodiments of the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0047] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0048] See attached Figures 1-6 As shown, the corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment of the embodiment of the present invention includes a workbench 100, a driving wheel 301 is arranged above one side of the workbench 100, a bearing member for carrying the driving wheel 301 is arranged on the top of one side of the workbench 100, a driving member for driving the driving wheel 301 is arranged on one side of the bearing member, and a mounting plate 101 is fixedly installed on the top of the other side of the workbench 100, a square hole 107 is opened on the upper part of one side of the mounting plate 101, and the inner cavity of the square hole 107 is connected to the round rod 101 through a rotating connecting member. 5. One end of the round rod 105 located above the driving wheel 301 is connected to the test bearing 112 through a fixed connecting piece, the bottom of the test bearing 112 contacts the surface of the driving wheel 301, and the top of the other side of the mounting plate 101 is provided with a toggle member for toggling the round rod 105 to simulate the working state of the test bearing 112 when turning. One end of the round rod 105 is provided with a spraying component for spraying a solution onto the surface of the test bearing 112 to test the corrosion resistance of the test bearing 112, and the other side of the mounting plate 101 is provided with a control component for controlling the toggle member and the spraying component.

[0049] Among them, the supporting member includes a linear slide rail 104 fixedly connected to the top of one side of the workbench 100, a base plate 200 is arranged on the top of one side of the workbench 100, the bottom surface of the base plate 200 is slidably connected to the surface of the linear slide rail 104, the tops of both sides of the base plate 200 are respectively connected to support plates 205 through height adjustment members, and the driving wheel 301 is rotatably connected between the two groups of support plates 205.

[0050] The driving member includes a driving motor 300 fixedly installed on the upper part of the outer side of the support plate 205 away from the mounting plate 101. The output shaft of the driving motor 300 is connected to the axle of the driving wheel 301 through a coupling. Through the setting of the driving member, the driving motor 300 is connected to the axle of the driving wheel 301 through the coupling, which can provide stable and continuous power output for the driving wheel 301, ensure the stable rotation speed of the driving wheel 301 during the test, and accurately simulate the rotation condition of the test bearing 112 during actual operation.

[0051] The rotating connecting member includes rotating columns 109 respectively rotatably connected to the middle parts of the inner walls of the upper and lower sides of the square hole 107. A square frame 108 is fixedly connected between the two groups of rotating columns 109. The middle part of the round rod 105 is located in the inner cavity of the square frame 108. Circular grooves 111 are opened on both sides of the round rod 105 located in the inner cavity of the square frame 108. Fixed columns 110 are rotatably inserted into the inner cavities of the two groups of circular grooves 111. The end parts of the two groups of fixed columns 110 are respectively fixedly connected to the middle parts of the corresponding inner walls of the square frame 108. Through the setting of the rotating connecting member, the structure composed of the rotating column 109 and the square frame 108 enables the round rod 105 to have the ability to swing flexibly left and right, providing a necessary mechanical structure basis for simulating the steering of the test bearing 112. At the same time, the cooperation between the circular groove 111 and the fixed column 110 further enhances the stability and smoothness of the swing of the upper and lower round rods 105.

[0052] The fixing connecting member includes a working rod 404 inserted into the inner ring of the test bearing 112. One end of the working rod 404 is connected to the end of the round rod 105 through a detachable connecting member. The other end of the working rod 404 is fixedly connected with a threaded column 400. A nut 403 for fixing the inner ring of the test bearing 112 is threadedly connected to the surface of the threaded column 400. Through the setting of the fixing connecting member, the design of the working rod 404 cooperating with the nut 403 facilitates the quick installation and disassembly of the test bearing 112, improving the efficiency of test preparation and replacement of the test bearing 112.

[0053] Installation grooves 402 are opened on the bottom surfaces of the working rod 404 and the threaded column 400. A temperature sensor 401 is fixedly installed in the inner cavity of the installation groove 402. The detection end of the temperature sensor 401 contacts the inner wall surface of the inner ring of the test bearing 112 so as to monitor the temperature of the test bearing 112. The temperature sensor 401 is connected to the control component. Through the setting of the temperature sensor 401, the temperature of the inner ring of the test bearing 112 is monitored in real time and the data is transmitted to the control component, providing key data for evaluating the thermal performance of the test bearing 112 under different working conditions, helping to detect potential overheating problems in time, and ensuring the safety and accuracy of the test.

[0054] The toggle member includes a square ring 604 disposed on the outside of the other side of the mounting plate 101. The square ring 604 is arranged in parallel with the round rod 105. A toggle rod 606 is inserted into the inner cavity of the square ring 604. One end of the toggle rod 606 extends downward and is fixedly connected to the top surface of the corresponding side of the round rod 105. When the square ring 604 moves to one side, the toggle rod 606 drives one end of the round rod 105 to swing to one side at the same time, thereby simulating the working state of the test bearing 112 when turning. The other side of the mounting plate 101 is on the upper part and on the square ring 604. A lateral movement component for lateral movement of the square ring 604 is arranged at a position corresponding to the end of the square ring 604, and a pulling member is arranged at the outer end of the square frame 108 for pulling one end of the round rod 105 upwards to move the other end of the round rod 105 downwards and thereby applying a load to the test bearing 112. By setting the toggle member, the square ring 604 is moved to one side, and the round rod 105 is driven by the toggle rod 606 to swing to one side, thereby simulating the working state of the test bearing 112 when turning, which can meet the simulation requirements of steering conditions of different degrees.

[0055] The spray assembly includes a spray head 500 disposed above the end of the round rod 105, a fixed ring 501 is provided on the outer cylindrical surface of the spray head 500, and the fixed ring 501 is fixedly connected to the top of the round rod 105. A pumping assembly for pumping a solution into the spray head 500 is provided on the other side of the mounting plate 101. Through the setting of the spray assembly, the spray head 500 is firmly mounted on the top of the round rod 105 through the fixed ring 501. The pumping assembly can stably pump the solution in the solution tank 503 to the spray head 500 and spray it onto the surface of the test bearing 112, ensuring that the corrosion resistance test is carried out continuously and stably. The precise fixation of the position of the spray head 500 ensures the accuracy and effectiveness of the solution spraying.

[0056] A linkage fork 106 is sleeved on the surface of the round rod 105, and the linkage fork 106 is fixedly connected to the top of one group of support plates 205. Through the setting of the linkage fork 106, the linkage fork 106 sleeved on the surface of the round rod 105 is fixedly connected to the support plate 205. When the round rod 105 swings to simulate the turning of the test bearing 112, the linkage fork 106 drives the support plate 205 to move, ensuring that the test bearing 112 always maintains good contact with the driving wheel 301, avoiding the two from losing contact during the test and affecting the test results, thereby improving the stability and reliability of the test process.

[0057] By setting up the bearing parts, rotating connecting parts, toggle parts, spraying components and control components, the present invention builds an integrated test platform that can fully simulate the actual working state of the test bearing 112, and can simultaneously perform comprehensive tests on various performances of the test bearing 112, such as rotation, steering, load and corrosion resistance. Compared with the traditional single performance testing method, the test efficiency and comprehensiveness are greatly improved, and richer and more accurate data basis is provided for evaluating the performance of the test bearing 112. Moreover, the various components work together to truly simulate various working conditions of the test bearing 112 in actual application scenarios, such as providing rotational power through the drive wheel 301 to simulate normal operation, simulating steering by the toggle part, simulating corrosive environment by the spraying component, etc., so that the test results are more in line with actual usage conditions, and the reliability and effectiveness of the test are enhanced.

[0058] The height adjustment component includes a slot 207 opened at the bottom of the two groups of support plates 205, and the inner cavities of the two groups of slots 207 are plugged with plug plates 201. The two groups of plug plates 201 are fixedly connected to the top of the corresponding sides of the bottom plate 200 respectively, and a group of fixing plates 208 are fixedly connected to the lower part of the opposite side of the two groups of support plates 205. A height adjustment component for adjusting the height of the fixing plate 208 and thereby adjusting the height of the driving wheel 301 is provided in the middle of the fixing plate 208. One side surface of the two groups of support plates 205 is provided with a fixing component for being fixedly connected to the corresponding side plug plate 201.

[0059] The height adjustment component includes a hand-tightening bolt 206 threadedly connected to the middle of the fixed plate 208, and the bottom of the hand-tightening bolt 206 is fixedly connected to a T-bar 209, and the T-bar 209 is rotatably inserted into the surface of the base plate 200. Through the setting of the height adjustment component, the operator only needs to turn the hand-tightening bolt 206 to easily adjust the height of the driving wheel 301. The operation is simple and convenient, and the height of the driving wheel 301 can be accurately adjusted according to the specific requirements of different test bearings 112, thereby improving the convenience of use and test adaptability of the device.

[0060] The fixing assembly includes limiting holes 210 respectively opened on the upper part of the opposite side of the two groups of support plates 205 and connected to the corresponding side slots 207. The inner cavities of the two groups of limiting holes 210 are both provided with fixing bolts 204. One ends of the two groups of fixing bolts 204 are respectively fixedly connected to the surface of the plug plate 201, and the other ends of the two groups of fixing bolts 204 are respectively threadedly connected with fixing nuts 203. The two groups of fixing nuts 203 respectively contact the surfaces of the corresponding side support plates 205. Through the setting of the fixing assembly, the support plate 205 and the plug plate 201 are firmly fixed, effectively preventing the relative displacement between the support plate 205 and the plug plate 201 due to the vibration generated by the operation of the drive wheel 301 and other external forces during the test, ensuring the stability of the entire drive wheel 301 installation structure, thereby ensuring the accuracy and reliability of the test process, and avoiding test errors or equipment damage caused by structural instability.

[0061] The lateral movement component includes a strip-shaped groove 600 formed in the upper part of the other side of the mounting plate 101. A lead screw 601 is rotatably connected to the inner cavity of the strip-shaped groove 600. On the upper part of the other side of the mounting plate 101 and on one side of the strip-shaped groove 600, a servo motor 605 is embedded. The output shaft of the servo motor 605 extends into the inner cavity of the strip-shaped groove 600 and is connected to the end of the lead screw 601 through a coupling. A connecting seat 602 is threadedly connected to the surface of the lead screw 601. One side of the connecting seat 602 is fixedly connected to the end surface of the square ring 604. Through the setting of the lateral movement component, the servo motor 605 precisely controls the rotation of the lead screw 601, thereby driving the connecting seat 602 and the square ring 604 to perform high-precision lateral movement, enabling accurate adjustment of the swing angle and amplitude of the round rod 105, accurately simulating the steering state of the test bearing 112 under complex working conditions such as different turning radii and different steering speeds, greatly improving the accuracy and repeatability of the steering simulation test, and providing reliable data support for the evaluation of the steering performance of the test bearing 112.

[0062] The pulling component includes a circular ring 607 fixedly connected to the end of the square ring 604. An electric push rod 608 is fixedly inserted into the inner cavity of the circular ring 607. The telescopic end of the electric push rod 608 is fixedly connected to a connecting ring 609. A round rod 610 is inserted into the inner cavity of the connecting ring 609. Connecting strips 611 are fixedly connected to both ends of the round rod 610. The other ends of the two groups of connecting strips 611 are fixedly connected to the end of the round rod 105. Through the setting of the pulling component, the electric push rod 608 can precisely control the magnitude and direction of the output pulling force, and transmit the pulling force to the round rod 105 through the connecting ring 609, the round rod 610 and the connecting strips 611, thereby applying a precisely controllable load to the test bearing 112. The load magnitude can be flexibly adjusted according to different test requirements, simulating the situation where the test bearing 112 bears different degrees of load during actual operation, and providing an effective means for comprehensively evaluating the performance of the test bearing 112 under loaded conditions.

[0063] The pumping assembly includes a solution tank 503 inserted into the top of one end of the mounting plate 101. An observation port 504 is provided on one side of the mounting plate 101 and at a position below the solution tank 503. A water pump 505 is fixedly connected to one side of the mounting plate 101. The input end of the water pump 505 is communicated with the inner cavity of the solution tank 503. The output end of the water pump 505 is communicated with a delivery pipe 506. The other end of the delivery pipe 506 is bent upward and communicated with a rotary joint 508. A connecting pipe 502 is inserted into the inside of the round rod 105. One end of the connecting pipe 502 is communicated upward with the input end of the spray head 500. The other end of the connecting pipe 502 is bent downward and communicated with a rubber pipe 507. The other end of the rubber pipe 507 is communicated with the rotary joint 508. Through the setting of the pumping assembly, the solution in the solution tank 503 can be stably and efficiently pumped to the spray head 500. Moreover, the design of the rotary joint 508 and the connecting pipe 502 ensures that during the rotation of the round rod 105, the solution delivery is not affected, continuously providing solution for the spray head 500, ensuring that the corrosion resistance test can be carried out continuously. At the same time, the observation port 504 at the lower part of the solution tank 503 facilitates the operator to observe the remaining amount of the solution at any time, so as to replenish the solution in time and ensure the continuity of the test.

[0064] The detachable connecting piece includes a hexagonal groove 406 opened at the end of the round rod 105. A hexagonal block 405 is inserted into the inner cavity of the hexagonal groove 406. A limit bolt 407 is arranged above the end of the round rod 105. The end of the limit bolt 407 sequentially penetrates downward through the round rod 105 and the hexagonal block 405. The end of the limit bolt 407 located below the round rod 105 is threadedly connected with a limit nut 408. The top of the limit nut 408 contacts the surface of the round rod 105. Through the setting of the detachable connecting piece, the connection and disconnection operations between the working rod 404 and the round rod 105 are simple and fast. When it is necessary to replace the test bearings 112 of different models, the mismatched working rod 404 can be quickly removed and the suitable working rod 404 can be replaced, greatly improving the efficiency of the test preparation work, enhancing the response ability of the device to different test requirements, and improving the versatility and practicability of the equipment.

[0065] The control component includes a controller 701 fixedly installed on the other surface of the mounting plate 101, a driving motor 300, a servo motor 605, an electric push rod 608, and a water pump 505, all of which are controlled by the controller 701. An operation screen 700 is provided at the upper part of the other side of the mounting plate 101. The output end of the operation screen 700 is electrically connected to the input end of the controller 701 through a wire. Through the setting of the control component, centralized automatic control of devices such as the driving motor 300, servo motor 605, electric push rod 608, and water pump 505 is achieved. The operator only needs to set relevant data parameters on the operation screen 700 to easily control the entire test process, including operations such as the rotation of the test bearing 112, steering simulation, load application, and solution spraying. This not only improves the test efficiency but also reduces the errors that may be brought by manual operations, ensuring the accuracy and consistency of the test process. At the same time, it is convenient for the operator to monitor the test status in real time and make adjustments according to the actual situation.

[0066] The controller 701 is a DSP controller 701, and its specific model can be TMS320F2812. At the same time, the model of the temperature sensor 401 can be the MD - G501T series wireless Bluetooth temperature transmitter, which is connected to the controller 701 through the internally integrated Bluetooth communication module, so as to monitor the temperature inside the cavity of the test bearing 112 and transmit it to the controller 701. Then, the operator can intuitively view the temperature of the test bearing 112.

[0067] Water collecting boxes 102 are fixedly connected to the left and right parts of one side of the mounting plate 101. Protective covers 103 are provided at the top of both sides of the two water collecting boxes 102. The mouths of the protective covers 103 are arranged oppositely and can block the solution splashed during the test. The bottoms of the two protective covers 103 are respectively communicated with the inner cavities of the corresponding water collecting boxes 102. Through the setting of the water collecting boxes 102 and the protective covers 103, the water collecting boxes 102 on one side of the mounting plate 101 and the protective covers 103 arranged oppositely at the top of both sides can effectively block the solution splashed during the test, prevent the solution from splashing everywhere and polluting the working environment and corroding and damaging other components of the equipment. At the same time, the bottom of the protective cover 103 is communicated with the inner cavity of the water collecting box 102, which is convenient for collecting the solution, facilitating subsequent treatment and recycling of the solution, protecting the environment and saving resources, and improving the safety and environmental protection of the test device.

[0068] When the embodiment of the present invention is used, first rotate the hand - tightened bolt 206, which can drive the fixed plate 208 to rise and fall, and then adjust the height of the driving wheel 301 to meet the test requirements of test bearings 112 of different models. At the same time, by tightening the fixing bolts 204 located on one side of the support plate 205 respectively, the support plate 205 and the plug plate 201 are fixed to ensure the structural stability.

[0069] Immediately take out the test bearing 112 and sleeved it on the surface of the working rod 404. Then, thread the nut 403 onto the surface of the threaded column 400 to fix the inner ring of the test bearing 112. Moreover, installation grooves 402 are provided on the bottom surfaces of the working rod 404 and the threaded column 400, and a temperature sensor 401 is fixedly installed in the installation groove 402. The detection end of the temperature sensor 401 contacts the inner wall surface of the inner ring of the test bearing 112, which can monitor the temperature of the test bearing 112 in real time and transmit the temperature data to the controller 701.

[0070] When the tested test bearing 112 does not match the working rod 404, unscrew the limit nut 408 and pull up the limit bolt 407 to extract the limit bolt 407 from the end of the round rod 105. Then, move the working rod 404 outward so that the hexagonal block 405 at the end of the working rod 404 disengages from the inner cavity of the hexagonal groove 406, thereby removing the mismatched working rod 404. At this time, take out the compatible working rod 404, insert the hexagonal block 405 at its end into the inner cavity of the hexagonal groove 406, and use the limit bolt 407 to sequentially penetrate downward through the round rod 105 and the hexagonal block 405, and thread the limit nut 408 at the end to fix it to ensure that the working rod 404 is connected to the round rod 105.

[0071] Set data parameters on the surface of the operation screen 700, such as controlling the moving distance of the connection seat 602, so as to control the deflection angle of the test bearing 112, thereby simulating the dynamic lateral load during vehicle steering, and controlling the retracting distance of the electric push rod 608, so as to simulate the working state of the test bearing 112 under load. At the same time, regularly control the water pump 505 to start, so as to regularly spray the solution on the test bearing 112 to simulate the corrosion resistance of the test bearing 112 during use, thereby realizing the automatic control of the entire test process.

[0072] When the driving motor 300 starts, it can drive the driving wheel 301 to rotate, thereby providing the driving force for the rotation of the test bearing 112 and simulating the rotation state of the bearing in actual work.

[0073] When the driving motor 300 runs for a certain period of time, the controller 701 controls the servo motor 605 to work, thereby driving the lead screw 601 to rotate. Then, the connection seat 602 moves along the lead screw 601, and when driving the square ring 604 to move to one side, it drives one end of the round rod 105 to swing to one side through the lever 606, and the other end of the round rod 105 swings to the other side, thereby simulating the working state of the test bearing 112 during turning.

[0074] Furthermore, while the end of the round rod 105 on which the test bearing 112 is mounted is swinging toward one side, the linkage fork 106 sleeved on the surface of the round rod 105 drives the support plate 205 to move toward the same side, and ensures that the test bearing 112 contacts the drive wheel 301, thereby ensuring that the test bearing 112 can cooperate normally with the drive wheel 301 under various simulated working conditions, so that the test can accurately reflect the performance of the bearing in actual operation, thereby improving the reliability and effectiveness of the test results.

[0075] In addition, the electric push rod 608 pulls one end of the round rod 105 upwards, causing the other end of the round rod 105 to move downwards, thereby applying a load to the test bearing 112, further simulating the stress conditions under actual working conditions.

[0076] The input end of the water pump 505 is connected to the inner cavity of the solution tank 503, and the output end is connected to the delivery pipe 506. The other end of the delivery pipe 506 is connected to the connecting pipe 502 inside the round rod 105 through a rotating joint 508. One end of the connecting pipe 502 is connected to the input end of the nozzle 500, and the other end is connected to the rotating joint 508 through a rubber tube 507. The solution in the solution tank 503 can be pumped to the nozzle 500, and the nozzle 500 sprays the solution onto the surface of the test bearing 112 to test the corrosion resistance of the test bearing 112.

[0077] To prevent the solution from splashing during the test, water collecting boxes 102 are fixedly connected to the left and right parts of one side of the mounting plate 101. Protective covers 103 are provided on the tops of both sides of the two sets of water collecting boxes 102. The mouths of the protective covers 103 are arranged opposite to each other to block the solution splashed during the test, and the bottoms of the two sets of protective covers 103 are respectively connected to the inner cavities of the corresponding side water collecting boxes 102, so as to facilitate the collection and subsequent treatment of the solution.

[0078] To sum up, the corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment of the present invention builds an integrated test platform for comprehensively simulating the actual working state of the test bearing 112, and can simultaneously perform comprehensive tests on the rotation, steering, load and corrosion resistance of the test bearing 112 and other performances. Compared with the traditional single performance test method, it greatly improves the test efficiency and comprehensiveness, and provides richer and more accurate data basis for evaluating the performance of the test bearing 112. In addition, the various components work together to truly simulate various working conditions of the test bearing 112 in actual application scenarios, such as providing rotational power through the drive wheel 301 to simulate normal operation, the toggle part simulates steering, the spray component simulates corrosive environment, etc., so that the test results are more in line with actual usage conditions, and the reliability and effectiveness of the test are enhanced.

[0079] The basic principles of the present invention have been shown and described above. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. The descriptions in the above embodiments and the specification only illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention shall be included within the protection scope of the present invention.

Claims

1. A corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test device, comprising a workbench (100), characterized in that: A driving wheel (301) is arranged above one side of the workbench (100); a bearing member for bearing the driving wheel (301) is arranged at the top of one side of the workbench (100); a driving member for driving the driving wheel (301) is arranged on one side of the bearing member; a mounting plate (101) is fixedly mounted on the top of the other side of the workbench (100); a square hole (107) is opened at the upper part of one side of the mounting plate (101); a round rod (105) is connected to the inner cavity of the square hole (107) via a rotating connecting member; the round rod (105) located above the driving wheel (301) 05) is connected to a test bearing (112) at one end via a fixed connection member, the bottom of the test bearing (112) contacts the surface of the driving wheel (301), a toggle member for toggling a round rod (105) to simulate the working state of the test bearing (112) when turning is arranged at the top of the other side of the mounting plate (101), a spray assembly for spraying a solution onto the surface of the test bearing (112) to test the corrosion resistance of the test bearing (112) is arranged at one end of the round rod (105), and a control assembly for controlling the toggle member and the spray assembly is arranged at the other side of the mounting plate (101).

2. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 1, characterized in that: The bearing member comprises a linear slide rail (104) fixedly connected to the top of one side of the workbench (100); a bottom plate (200) is provided on the top of one side of the workbench (100); the bottom surface of the bottom plate (200) is slidably connected to the surface of the linear slide rail (104); the tops of both sides of the bottom plate (200) are respectively connected to support plates (205) via height adjustment members; and the driving wheel (301) is rotatably connected between the two groups of support plates (205); The driving member comprises a driving motor (300) fixedly mounted on an upper outer portion of a supporting plate (205) away from the mounting plate (101), wherein an output shaft of the driving motor (300) is connected to a wheel axle of a driving wheel (301) via a coupling; The rotating connecting member comprises rotating columns (109) respectively rotatably connected to the middle of the inner walls on the upper and lower sides of the square hole (107); a group of square frames (108) are fixedly connected between two groups of the rotating columns (109); the middle of the round rod (105) is located in the inner cavity of the square frame (108); circular grooves (111) are provided on both sides of the round rod (105) located in the inner cavity of the square frame (108); fixed columns (110) are rotatably inserted into the inner cavities of the two groups of the circular grooves (111); and the ends of the two groups of the fixed columns (110) are respectively fixedly connected to the middle of the inner walls on the corresponding sides of the square frame (108); The fixed connection member comprises a working rod (404) inserted into the inner ring of the test bearing (112), one end of the working rod (404) being connected to the end of the round rod (105) via a detachable connection member, the other end of the working rod (404) being fixedly connected to a threaded column (400), the surface of the threaded column (400) being threadedly connected to a nut (403) for fixing the inner ring of the test bearing (112); The bottom surfaces of the working rod (404) and the threaded column (400) are provided with a mounting groove (402), the inner cavity of the mounting groove (402) is fixedly mounted with a temperature sensor (401), the detection end of the temperature sensor (401) contacts the inner wall surface of the inner ring of the test bearing (112) so as to monitor the temperature of the test bearing (112), and the temperature sensor (401) is connected to the control component; The toggle member comprises a square ring (604) arranged on the outside of the other side of the mounting plate (101), the square ring (604) and the round rod (105) being arranged in parallel, a toggle rod (606) being inserted into the inner cavity of the square ring (604), one end of the toggle rod (606) extending downward and fixedly connected to the top surface of the corresponding side of the round rod (105), when the square ring (604) moves to one side, the toggle rod (606) drives one end of the round rod (105) to swing to one side at the same time, thereby simulating the working state of the test bearing (112) when turning, a lateral movement component for lateral movement of the square ring (604) is arranged on the upper part of the other side of the mounting plate (101) and at a position corresponding to the end of the square ring (604), and a pulling member for pulling one end of the round rod (105) upward to move the other end of the round rod (105) downward to apply a load to the test bearing (112); The spray assembly comprises a spray head (500) arranged above the end of a round rod (105); a fixing ring (501) is fixedly sleeved on the outer circumferential surface of the spray head (500); the fixing ring (501) is fixedly connected to the top of the round rod (105); and a pumping assembly for pumping a solution into the spray head (500) is arranged on the other side of the mounting plate (101); A linkage fork (106) is sleeved on the surface of the round rod (105), and the linkage fork (106) is fixedly connected to the top of one group of the support plates (205).

3. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 2, characterized in that: The height adjustment component comprises slots (207) provided at the bottom of the two groups of support plates (205), the inner cavities of the two groups of slots (207) are both plugged with plug plates (201), the two groups of plug plates (201) are respectively fixedly connected to the top of the corresponding sides of the bottom plate (200), a group of fixing plates (208) are fixedly connected to the lower parts of the opposite sides of the two groups of support plates (205), a height adjustment component for adjusting the height of the fixing plates (208) and thus adjusting the height of the driving wheel (301) is provided in the middle of the fixing plates (208), and a fixing component for being fixedly connected to the corresponding side plug plates (201) is provided on the surface of one side of the two groups of support plates (205); The height adjustment assembly comprises a hand-tightening bolt (206) threadedly connected to the middle of the fixing plate (208); a T-shaped rod (209) is fixedly connected to the bottom of the hand-tightening bolt (206); and the T-shaped rod (209) is rotatably plugged into the surface of the bottom plate (200).

4. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 3 is characterized by: The fixing assembly comprises limiting holes (210) respectively opened at the upper part of the opposite side of the two groups of support plates (205) and connected to the corresponding side slots (207); the inner cavities of the two groups of limiting holes (210) are both provided with fixing bolts (204); one end of the two groups of fixing bolts (204) is respectively fixedly connected to the surface of the plug plate (201); the other ends of the two groups of fixing bolts (204) are respectively threadedly connected to fixing nuts (203); the two groups of fixing nuts (203) are respectively in contact with the surface of the corresponding side support plates (205).

5. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 2, characterized in that: The lateral movement assembly comprises a strip groove (600) opened at the upper part of the other side of the mounting plate (101); the inner cavity of the strip groove (600) is rotatably connected to a lead screw (601); a servo motor (605) is embedded at the upper part of the other side of the mounting plate (101) and located on one side of the strip groove (600); the output shaft of the servo motor (605) extends to the inner cavity of the strip groove (600) and is connected to the end of the lead screw (601) through a coupling; a connecting seat (602) is threadedly connected to the surface of the lead screw (601); one side of the connecting seat (602) is fixedly connected to the end surface of the square ring (604).

6. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 2, characterized in that: The pulling assembly comprises a circular ring (607) fixedly connected to the end of a square ring (604); an electric push rod (608) is fixedly inserted into the inner cavity of the circular ring (607); a connecting ring (609) is fixedly connected to the telescopic end of the electric push rod (608); a circular rod (610) is inserted into the inner cavity of the connecting ring (609); connecting strips (611) are fixedly connected to both ends of the circular rod (610); and the other ends of two groups of connecting strips (611) are fixedly connected to the end of the circular rod (105).

7. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 2, characterized in that: The pumping assembly comprises a solution tank (503) plugged into the top of one end of the mounting plate (101); an observation port (504) is provided on one side of the mounting plate (101) and located at the lower part of the solution tank (503); a water pump (505) is fixedly connected to one side of the mounting plate (101); an input end of the water pump (505) is connected to the inner cavity of the solution tank (503); an output end of the water pump (505) is connected to a delivery pipe (506); the other end of the delivery pipe (506) is bent upward and connected to a rotating joint (508); a connecting pipe (502) is plugged into the inside of the round rod (105); one end of the connecting pipe (502) is connected upward to the input end of the nozzle (500); the other end of the connecting pipe (502) is bent downward and connected to a rubber pipe (507); the other end of the rubber pipe (507) is connected to the rotating joint (508).

8. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 2, characterized in that: The detachable connecting piece comprises a hexagonal groove (406) opened at the end of the round rod (105), the inner cavity of the hexagonal groove (406) is plugged with a hexagonal block (405), a limiting bolt (407) is arranged above the end of the round rod (105), the end of the limiting bolt (407) passes through the round rod (105) and the hexagonal block (405) downward in sequence, the end of the limiting bolt (407) located at the lower part of the round rod (105) is threadedly connected to the limiting nut (408), and the top of the limiting nut (408) contacts the surface of the round rod (105).

9. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claims 1-8, characterized in that: The control assembly comprises a controller (701) fixedly mounted on the other side surface of the mounting plate (101); the drive motor (300), the servo motor (605), the electric push rod (608) and the water pump (505) are all controlled by the controller (701); an operation screen (700) is arranged on the upper part of the other side of the mounting plate (101); an output end of the operation screen (700) is electrically connected to an input end of the controller (701) via a wire.

10. The corrosion-resistant high dynamic load wheel hub bearing dynamic performance simulation test equipment according to claim 1, characterized in that: The left and right parts of one side of the mounting plate (101) are both fixedly connected to a water collecting box (102), and the tops of both sides of the two groups of water collecting boxes (102) are provided with protective covers (103), the mouths of the protective covers (103) are arranged opposite to each other and can block the solution splashed during the test, and the bottoms of the two groups of protective covers (103) are respectively connected to the inner cavity of the water collecting box (102) on the corresponding side.

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