A fatigue testing device for an automobile tie rod

Abstract

The utility model relates to the technical field of balance bar fatigue test, and disclose a kind of fatigue testing device of automobile balance bar, including mounting bracket, the top fixed mounting of mounting bracket has locating plate, the both sides of mounting bracket surface are fixedly installed with guide rod, the surface fixed mounting of guide rod has slow down component, the both sides of mounting bracket middle part are fixedly installed with support plate, the surface fixed mounting of support plate has locating ring, locating ring's inside fixed mounting has balance bar.The fatigue testing device of this automobile balance bar, through the setting of mounting bracket, guide rod and slow down component, in use process, personnel detects balance bar, in detection process, balance bar will be moved up and down by guide rod, when moving down at one end of balance bar, slow down component will buffer the pressure received by balance bar, slow down component just like the suspension in automobile chassis, improve the authenticity of testing balance bar.

Description

Technical Field

[0001] This utility model relates to the field of stabilizer bar fatigue testing technology, and in particular to a fatigue testing device for automotive stabilizer bars. Background Technology

[0002] As industrial technology becomes more advanced, people's requirements for product quality are also increasing. Now, after automotive parts are designed, fatigue tests are required to ensure their service life.

[0003] The fatigue testing machine for automotive stabilizer bars disclosed in publication number CN220650062U includes a testing platform and a hydraulic device. The testing platform has two clearance holes located below the two free ends of the automotive stabilizer bar. The hydraulic device includes a hydraulic station and two hydraulic cylinders. The hydraulic station is connected to two ascending oil pipes and two descending oil pipes. The two ascending oil pipes are connected to the ascending oil ports of the two hydraulic cylinders, and the two descending oil pipes are connected to the descending oil ports of the two hydraulic cylinders. The telescopic ends of the hydraulic cylinders are hinged to the free ends of the automotive stabilizer bar. This application, by fixing the automotive stabilizer bar to the testing platform, allows both free ends of the stabilizer bar to be simultaneously released, enabling the hydraulic device to simultaneously perform fatigue testing on both free ends. Furthermore, one hydraulic station simultaneously drives two hydraulic cylinders, which can alternately extend and retract, saving hydraulic oil and improving the efficiency of the fatigue test.

[0004] However, this fatigue testing machine used for automotive stabilizer bars has the following drawbacks:

[0005] (1) In actual use, the stabilizer bar is located between the suspensions, and the suspension will reduce the force on the stabilizer bar to a certain extent. However, directly testing the stabilizer bar is not very realistic.

[0006] (2) When testing the balance bar, the hydraulic rod is used to test the balance bar. The force on the balance bar is not easy to control, which can easily cause the balance bar to break. Utility Model Content

[0007] The technical problem solved by this utility model is to provide a fatigue testing device for automotive stabilizer bars that is highly practical, easy to operate, and has a simple structure. This solves the problems mentioned in the background art, such as the fact that in actual use, the stabilizer bar is located between the suspension and the suspension will reduce the force on the stabilizer bar to a certain extent, and that directly testing the stabilizer bar results in poor authenticity, and that when using a hydraulic rod to test the stabilizer bar, the force on the stabilizer bar is difficult to control, which can easily lead to the stabilizer bar breaking.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fatigue testing device for an automotive stabilizer bar, comprising a mounting frame, a positioning plate fixedly mounted on the top of the mounting frame, guide rods fixedly mounted on both sides of the surface of the mounting frame, a damping component fixedly mounted on the surface of the guide rods, support plates fixedly mounted on both sides of the middle portion of the mounting frame, a positioning ring fixedly mounted on the surface of the support plate, a stabilizer bar fixedly mounted inside the positioning ring, a limit plate fixedly mounted on the middle portion of the surface of the positioning plate, a detection component rotatably connected to the surface of the limit plate, a protective cover fixedly mounted on the surface of the positioning plate, and a fatigue detection sensor provided on the side adjacent to the guide rod.

[0009] Optionally, the mitigation assembly includes a support block fixedly mounted at the bottom of the guide rod, a telescopic rod fixedly mounted on the surface of the support block, a spring sleeved on the surface of the telescopic rod, and the top of the spring fixedly mounted at the bottom of the balance bar.

[0010] Optionally, a through groove is provided in the middle of the surface of the telescopic rod, and a guide rod passes through the inside of the through groove.

[0011] Optionally, the detection component includes a connecting plate rotatably connected to the middle of the surface of the limiting plate, with movable rods rotatably connected to both ends of the connecting plate, a pressing block fixedly installed at the bottom of the movable rod, support frames fixedly installed on both sides of the surface of the positioning plate, and an electric push rod fixedly installed inside the support frame, with one end of the electric push rod overlapping the surface of the connecting plate.

[0012] Optionally, a limiting groove is provided on both sides of the center of the positioning plate surface, and a moving rod is slidably connected inside the limiting groove, and the moving rod moves up and down inside the limiting groove.

[0013] Optionally, the surface of the pressing block is provided with an embedding groove, and a rubber pad is embedded inside the embedding groove. The bottom of the rubber pad is in contact with the surface of the balance bar.

[0014] This utility model provides a fatigue testing device for automotive stabilizer bars, which has the following beneficial effects:

[0015] 1. The fatigue testing device for the car stabilizer bar, through the setting of the mounting bracket, guide rod and damping component, allows personnel to test the stabilizer bar during use. During the test, the stabilizer bar will move up and down through the guide rod. When one end of the stabilizer bar moves downward, the damping component will buffer the pressure on the stabilizer bar. The damping component is like the suspension in the car chassis, which improves the authenticity of the stabilizer bar test.

[0016] 2. The fatigue testing device for the car stabilizer bar, through the setting of positioning plate, limiting plate and detection component, when the detection component is activated during use, the detection component will move the stabilizer bar up and down reciprocatingly, which improves the efficiency of the stabilizer bar testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the mitigation component of this utility model;

[0020] Figure 4 This is a schematic diagram of the detection component structure of this utility model.

[0021] In the diagram: 1. Mounting bracket; 2. Positioning plate; 3. Guide rod; 4. Mobilization assembly; 41. Support block; 42. Telescopic rod; 43. Spring; 5. Support plate; 6. Positioning ring; 7. Balance bar; 8. Limiting plate; 9. Detection assembly; 91. Connecting plate; 92. Moving rod; 93. Pressing block; 94. Support frame; 95. Electric push rod; 10. Protective cover; 11. Fatigue detection sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a fatigue testing device for an automotive stabilizer bar, including a mounting frame 1, a positioning plate 2 fixedly mounted on the top of the mounting frame 1, guide rods 3 fixedly mounted on both sides of the surface of the mounting frame 1, a damping component 4 fixedly mounted on the surface of the guide rods 3, support plates 5 fixedly mounted on both sides of the middle part of the mounting frame 1, a positioning ring 6 fixedly mounted on the surface of the support plate 5, a stabilizer bar 7 fixedly mounted inside the positioning ring 6, a limit plate 8 fixedly mounted on the middle part of the surface of the positioning plate 2, a detection component 9 rotatably connected to the surface of the limit plate 8, a protective cover 10 fixedly mounted on the surface of the positioning plate 2, and a fatigue detection sensor 11 provided on the side adjacent to the guide rod 3.

[0024] The deceleration component 4 includes a support block 41 fixedly installed at the bottom of the guide rod 3. A telescopic rod 42 is fixedly installed on the surface of the support block 41. A spring 43 is sleeved on the surface of the telescopic rod 42. The top of the spring 43 is fixedly installed at the bottom of the balance bar 7. A through groove is opened in the middle of the surface of the telescopic rod 42. The guide rod 3 passes through the inside of the through groove.

[0025] During the test of the balance bar 7, the balance bar 7 will move downward through the guide rod 3. When the balance bar 7 moves downward, it will compress the telescopic rod 42. The spring 43 on the telescopic rod 42 will be compressed accordingly and will rebound at one end of the balance bar 7 through the guide rod 3. The support block 41 installs and positions the telescopic rod 42.

[0026] The detection component 9 includes a connecting plate 91 rotatably connected to the middle of the surface of the limiting plate 8. Both ends of the connecting plate 91 are rotatably connected to moving rods 92. A pressing block 93 is fixedly installed at the bottom of the moving rod 92. Support frames 94 are fixedly installed on both sides of the surface of the positioning plate 2. An electric push rod 95 is fixedly installed inside the support frame 94. One end of the electric push rod 95 overlaps with the surface of the connecting plate 91. Limiting grooves are opened on both sides of the middle of the surface of the positioning plate 2. Moving rods 92 are slidably connected inside the limiting grooves. Moving rods 92 move up and down inside the limiting grooves. An embedding groove is opened on the surface of the pressing block 93. A rubber pad is embedded inside the embedding groove. The bottom of the rubber pad is in contact with the surface of the balance rod 7.

[0027] When testing the balance bar 7, the operator will start the electric push rod 95 using the support frame 94. After the electric push rod 95 is started, its output end will rotate the connecting plate 91 through the limit plate 8. When the connecting plate 91 rotates, it will drive the moving rod 92 to move downward. The pressing block 93 at one end of the moving rod 92 will press the two ends of the balance bar 7 up and down repeatedly. The fatigue detection sensor 10 will detect the fatigue value of the balance bar 7.

[0028] In this invention, the working steps of the device are as follows:

[0029] Working principle: First, the balance bar 7 is installed inside the positioning ring 6. The support plate 5 positions the balance bar 7. Then, when testing the balance bar 7, the operator starts the electric push rod 95 using the support frame 94. After the electric push rod 95 is started, its output end will rotate the connecting plate 91 through the limit plate 8. When the connecting plate 91 rotates, it will drive the moving rod 92 to move downward. The pressing block 93 at one end of the moving rod 92 will reciprocate up and down pressing the two ends of the balance bar 7. The fatigue detection sensor 10 detects the fatigue value of the balance bar 7. During the detection process, the balance bar 7 will move downward through the guide rod 3. When the balance bar 7 moves downward, it will compress the telescopic rod 42. The spring 43 on the telescopic rod 42 will be compressed and will rebound at one end of the balance bar 7 through the guide rod 3. The support block 41 installs and positions the telescopic rod 42.

[0030] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0031] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fatigue testing device for an automotive stabilizer bar, comprising a mounting bracket (1), characterized in that: A positioning plate (2) is fixedly installed on the top of the mounting frame (1). Guide rods (3) are fixedly installed on both sides of the surface of the mounting frame (1). A damping component (4) is fixedly installed on the surface of the guide rods (3). Support plates (5) are fixedly installed on both sides of the middle part of the mounting frame (1). A positioning ring (6) is fixedly installed on the surface of the support plate (5). A balance rod (7) is fixedly installed inside the positioning ring (6). A limit plate (8) is fixedly installed in the middle of the surface of the positioning plate (2). A detection component (9) is rotatably connected to the surface of the limit plate (8). A protective cover (10) is fixedly installed on the surface of the positioning plate (2). A fatigue detection sensor (11) is provided on the side adjacent to the guide rod (3).

2. The fatigue testing device for an automotive stabilizer bar according to claim 1, characterized in that: The deceleration assembly (4) includes a support block (41) fixedly installed at the bottom of the guide rod (3), a telescopic rod (42) fixedly installed on the surface of the support block (41), a spring (43) sleeved on the surface of the telescopic rod (42), and the top of the spring (43) fixedly installed at the bottom of the balance bar (7).

3. The fatigue testing device for an automotive stabilizer bar according to claim 2, characterized in that: A through groove is provided in the middle of the surface of the telescopic rod (42), and a guide rod (3) passes through the inside of the through groove.

4. The fatigue testing device for an automotive stabilizer bar according to claim 1, characterized in that: The detection component (9) includes a connecting plate (91) rotatably connected to the middle of the surface of the limiting plate (8). Both ends of the connecting plate (91) are rotatably connected to moving rods (92). A pressing block (93) is fixedly installed at the bottom of the moving rod (92). Support frames (94) are fixedly installed on both sides of the surface of the positioning plate (2). An electric push rod (95) is fixedly installed inside the support frame (94). One end of the electric push rod (95) overlaps with the surface of the connecting plate (91).

5. The fatigue testing device for an automotive stabilizer bar according to claim 1, characterized in that: The positioning plate (2) has a limiting groove on both sides of the middle part of the surface. A moving rod (92) is slidably connected inside the limiting groove. The moving rod (92) moves up and down inside the limiting groove.

6. The fatigue testing device for an automotive stabilizer bar according to claim 4, characterized in that: The surface of the pressing block (93) is provided with an embedding groove, and a rubber pad is embedded inside the embedding groove. The bottom of the rubber pad is in contact with the surface of the balance bar (7).

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