Axle arm bearing capacity testing structure

Abstract

The invention relates to the technical field of vehicle detection, in particular to an axle arm bearing capacity testing structure which comprises a detection base, supporting columns are fixedly connected to the two sides of the detection base, a transmission chamber is fixedly connected between the upper ends of the supporting columns, a detection chamber is arranged between the transmission chambers on the two sides, and the detection chamber is connected with the detection base. The bottom of the detection chamber is provided with a detection column, the bottom of the detection column is provided with a lower pressing claw used for detecting the bearing capacity of an axle arm, and the detection chamber is internally provided with a detection assembly; through transmission between a gear and a rotating rod, same-pressure detection on different positions of a specified detection bridge arm section is achieved, a sliding frame is fixed and loosened through back-and-forth rotation of a first protruding rod and a second protruding rod, the real bumping effect of a lower pressing claw on an axle arm is achieved by adjusting the position of a C-shaped block, and the detection accuracy is improved. Therefore, the bearing capacity of the axle arm in a bumpy state is detected.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle detection, and more specifically, to a test structure for the bearing capacity of an axle arm. Background Art

[0002] The axle arm is a core force-transmitting component of the vehicle suspension system, responsible for connecting the axle to the body or frame, and transmitting the longitudinal force, lateral force, and torque between the wheel and the body. Its core function is to transmit the impact load of the wheel (such as bumps, steering, braking) to the body, reducing the impact on the frame. In an independent suspension system, the arm works together with springs and shock absorbers to share the vertical load;

[0003] Chinese Publication No.: CN202321656234.2 discloses a bearing capacity detection device, including a bottom plate, a clamping assembly, and an adjustment assembly. A bracket is welded on the upper surface of the bottom plate, a fixed frame is welded on the upper surface of the bracket, a sliding rod is slidably connected inside the fixed frame, a hydraulic cylinder is installed on the side wall of the sliding rod, a clamping plate is welded on one side of the hydraulic cylinder, and a winch is installed on the upper surface of the sliding rod. In this patent, by setting structures such as a winch and a clamping assembly, it is convenient to detect and recycle the safety net. When the device is in use, the safety net is placed inside the bracket, the pressure bar is pressed, the slide plate is driven to move downward through the connecting rod, and the fixing pin enters the fixing hole to fix the safety net. The winch is started, enough wire is released, the hydraulic cylinder is started, the clamping plate is driven to move, the test ball is released to detect the bearing capacity of the safety net, and after the detection is completed, the winch is started to drive the test ball to rise through the pull rope;

[0004] Although the above patent uses components such as a winch, a clamping assembly, and a hydraulic cylinder to detect the bearing capacity, considering the complex situation during the inspection of the axle arm, when the vehicle is in motion, not only the bearing capacity under the stable state of the vehicle needs to be detected, but also it is necessary to ensure that the vehicle may cause excessive bending of the axle back and forth during bumpy driving, resulting in cracking.

[0005] In view of this, we propose a test structure for the bearing capacity of an axle arm. Summary of the Invention

[0006] The purpose of the present invention is to provide a test structure for the bearing capacity of an axle arm to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides a test structure for the bearing capacity of an axle bridge arm, including a detection base. Support columns are fixedly connected to both sides of the detection base. A transmission chamber is fixedly connected between the upper ends of the support columns. A detection chamber is arranged between the two transmission chambers. A detection column is arranged at the bottom of the detection chamber. A pressing claw for detecting the bearing capacity of the axle bridge arm is arranged at the bottom of the detection column. A detection component is arranged in the detection chamber;

[0008] A sliding frame is slidably connected to the inner wall of the detection chamber. A hydraulic rod is fixedly connected to the bottom of the sliding frame. The hydraulic rod is fixedly connected to the detection column at the end far from the sliding frame.

[0009] Preferably, the transmission chamber is in a hollow state inside. A square hole is opened on the outer wall of one side of the transmission chamber. A servo motor is fixedly connected to the top of the transmission chamber. The output end of the servo motor is fixedly connected to a first threaded rod. The first threaded rod is rotatably connected inside the transmission chamber.

[0010] Preferably, the first threaded rod is divided into a threaded part and a smooth part. A first slider is threadedly connected to the outer wall of the threaded part of the first threaded rod. A C-shaped block is rotatably connected to one side of the first slider. A second slider is slidably connected to the outer wall of the smooth part of the first threaded rod. A circular disk is fixedly and rotatably connected to one side of the second slider.

[0011] Preferably, the detection column is also in a hollow state inside. A second threaded rod is rotatably connected inside the detection column. The threads on the second threaded rod are symmetrically distributed in the middle. A sliding column is threadedly connected to the outer wall of the second threaded rod. A connecting column is fixedly connected to the bottom of the sliding column. A pressing claw is fixedly connected to the bottom of the connecting column.

[0012] Preferably, fixing disks are fixedly connected to both ends of the second threaded rod. Buckle strips are fixedly connected to the ends of the two fixing disks far from the second threaded rod. The fixing disks are snap-connected to one side of the circular disk.

[0013] Preferably, the detection component includes a disc motor. The disc motor is fixedly connected to the inner wall of the top of the detection chamber. The output end of the disc motor is fixedly connected to a first rotating rod. A first connecting rod is arranged on the outer wall of the first rotating rod. The first rotating rod is rotatably connected to one end of the first connecting rod. The first connecting rod is rotatably connected to a second rotating rod at the end far from the first connecting rod. A first convex rod is fixedly connected to the outer wall of the second rotating rod. A first gear is fixedly connected to the end of the first convex rod far from the first connecting rod.

[0014] Preferably in the present invention, a second gear is fixedly connected to one end of the first rotating rod away from the disc motor. A third gear is meshed with the bottom of the second gear. A third rotating rod is fixedly connected through the center position of the third gear. A second convex rod is fixedly connected to the outer wall of the third rotating rod. A fourth gear is fixedly connected to one end of the second convex rod close to the third gear. The fourth gear is meshed with the first gear.

[0015] Preferably in the present invention, the outer walls of the first convex rod and the second convex rod are both in a convex state, and the convex positions of the first convex rod and the second convex rod correspond to each other.

[0016] Preferably in the present invention, second connecting rods are fixedly connected to both ends of the third rotating rod. A third slider is rotatably connected to one end of the second connecting rod away from the third rotating rod. A cross column is rotatably connected to the peripheral position of the third gear. A fixing plate is fixedly connected to one end of the cross column away from the third gear. A strip-shaped hole is formed on the surface of the fixing plate. The third slider is slidably connected in the strip-shaped hole.

[0017] Preferably in the present invention, an elliptical disc is fixedly connected to the outer wall of the fixing plate. A plurality of convex blocks are fixedly connected to the outer wall of the elliptical disc. The outer wall of the elliptical disc is connected to the outer wall of the circular disc by a sliding buckle.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In this axle bridge arm bearing capacity test structure, through the transmission between multiple gears and multiple rotating rods, and by using the second threaded rod to adjust the position of the pressing claw, the same-pressure detection is realized at different positions on the specified detected bridge arm section.

[0020] 2. In this axle bridge arm bearing capacity test structure, the fixing and relaxation of the sliding frame are realized by the reciprocating rotation of the first convex rod and the second convex rod, and the true bump effect of the pressing claw on the axle bridge arm is realized by adjusting the position of the C-shaped block, so as to realize the bearing capacity detection of the axle bridge arm under the bump state. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall three-dimensional schematic diagram of the axle bridge arm bearing capacity test structure of the present invention;

[0022] Figure 2 It is an overall transverse cross-sectional schematic diagram of the axle bridge arm bearing capacity test structure of the present invention;

[0023] Figure 3 It is an overall longitudinal cross-sectional schematic diagram of the axle bridge arm bearing capacity test structure of the present invention;

[0024] Figure 4This is an overall three-dimensional detailed schematic diagram of the axle arm bearing capacity test structure of the present invention;

[0025] Figure 5 This is an internal three-dimensional schematic diagram of the detection chamber of the axle arm bearing capacity test structure of the present invention;

[0026] Figure 6 This is an internal half-section three-dimensional schematic diagram of the detection chamber of the axle arm bearing capacity test structure of the present invention;

[0027] Figure 7 This is an internal unfolded three-dimensional schematic diagram of the detection chamber of the axle arm bearing capacity test structure of the present invention;

[0028] Figure 8 This is an unfolded three-dimensional schematic diagram of the detection component of the axle arm bearing capacity test structure of the present invention;

[0029] The meanings of each label in the figure are as follows:

[0030] 1. Detection base; 11. Support column; 12. Transmission chamber; 121. Square hole; 122. Servo motor; 123. First threaded rod; 1231. First slider; 1232. C-shaped block; 1233. Second slider; 1234. Circular disc; 2. Detection chamber; 21. Sliding frame; 211. Hydraulic rod; 3. Detection column; 31. Second threaded rod; 311. Sliding column; 312. Connecting column; 313. Fixed disc; 32. Lower pressing claw;

[0031] 4. Detection component; 41. Disc motor; 42. First rotating rod; 421. First connecting rod; 4211. Second rotating rod; 4212. First protruding rod; 4213. First gear; 422. Second gear; 43. Third gear; 431. Third rotating rod; 4311. Second protruding rod; 4312. Fourth gear; 432. Second connecting rod; 4321. Third slider; 44. Fixed plate; 441. Cross column; 442. Elliptical disc; 443. Protruding block. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing 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 construed as a limitation to the present invention.

[0034] Embodiment 1: Please refer to Figures 1-8 As shown in the figure, this embodiment provides a test structure for the bearing capacity of a vehicle axle bridge arm, including a detection base 1. Support columns 11 are fixedly connected to both sides of the detection base 1. A transmission chamber 12 is fixedly connected between the upper ends of the support columns 11. A detection chamber 2 is arranged between the two transmission chambers 12. A detection column 3 is arranged at the bottom of the detection chamber 2. A lower pressing claw 32 for detecting the bearing capacity of the vehicle axle bridge arm is arranged at the bottom of the detection column 3. A detection component 4 is arranged in the detection chamber 2. A sliding frame 21 is slidably connected to the inner wall of the detection chamber 2. A hydraulic rod 211 is fixedly connected to the bottom of the sliding frame 21. The hydraulic rod 211 is fixedly connected to the detection column 3 at the end far from the sliding frame 21. The support column 11 is an electrically telescopic component.

[0035] As Figures 2-5 shown in the figure, the transmission chamber 12 is in a hollow state inside. A square hole 121 is opened on the outer wall of one side of the transmission chamber 12. A servo motor 122 is fixedly connected to the top of the transmission chamber 12. The output end of the servo motor 122 is fixedly connected to a first threaded rod 123. The first threaded rod 123 is rotatably connected inside the transmission chamber 12. The first threaded rod 123 is divided into a threaded part and a smooth part. A first slider 1231 is threadedly connected to the outer wall of the threaded part of the first threaded rod 123. A C-shaped block 1232 is rotatably connected to one side of the first slider 1231. A second slider 1233 is slidably connected to the outer wall of the smooth part of the first threaded rod 123. A circular disk 1234 is fixedly and rotatably connected to one side of the second slider 1233.

[0036] As Figures 6-7 shown in the figure, the detection column 3 is also in a hollow state inside. A second threaded rod 31 is rotatably connected inside the detection column 3. The threads on the second threaded rod 31 are symmetrically distributed in the middle. A sliding column 311 is threadedly connected to the outer wall of the second threaded rod 31. A connecting column 312 is fixedly connected to the bottom of the sliding column 311. A lower pressing claw 32 is fixedly connected to the bottom of the connecting column 312. Fixed disks 313 are fixedly connected to both ends of the second threaded rod 31. A buckle strip is fixedly connected to the end of both fixed disks 313 far from the second threaded rod 31. The fixed disk 313 is snap-connected to one side of the circular disk 1234.

[0037] As shown Figures 7-8 in the figure, the detection component 4 includes a disc motor 41, the disc motor 41 is fixedly connected to the inner wall of the top of the detection chamber 2, the output end of the disc motor 41 is fixedly connected with a first rotating rod 42, a first connecting rod 421 is arranged on the outer wall of the first rotating rod 42, one end of the first rotating rod 42 is rotatably connected to one end of the first connecting rod 421, the other end of the first connecting rod 421 is rotatably connected to a second rotating rod 4211, a first protruding rod 4212 is fixedly connected to the outer wall of the second rotating rod 4211, a first gear 4213 is fixedly connected to the end of the first protruding rod 4212 away from the first connecting rod 421, a second gear 422 is fixedly connected to the end of the first rotating rod 42 away from the disc motor 41, a third gear 43 is meshed with the bottom of the second gear 422, a third rotating rod 431 is fixedly connected through the center position of the third gear 43, a second protruding rod 4311 is fixedly connected to the outer wall of the third rotating rod 431, a fourth gear 4312 is fixedly connected to the end of the second protruding rod 4311 close to the third gear 43, the fourth gear 4312 is meshed with the first gear 4213, the outer walls of the first protruding rod 4212 and the second protruding rod 4311 are both in a protruding state, and the protruding positions of the first protruding rod 4212 and the second protruding rod 4311 correspond to each other. Both ends of the third rotating rod 431 are fixedly connected with second connecting rods 432, the other ends of the second connecting rods 432 away from the third rotating rod 431 are rotatably connected to third sliders 4321, a cross column 441 is rotatably connected to the peripheral position of the third gear 43, a fixing plate 44 is fixedly connected to the end of the cross column 441 away from the third gear 43, a strip-shaped hole is formed on the surface of the fixing plate 44, the third slider 4321 is slidably connected in the strip-shaped hole, an elliptical disc 442 is fixedly connected to the outer wall of the fixing plate 44, a plurality of protruding blocks 443 are fixedly connected to the outer wall of the elliptical disc 442, and the outer wall of the elliptical disc 442 is connected to the outer wall of the circular disc 1234 by a sliding buckle.

[0038] It can be seen from this that when it is necessary to test the bearing capacity of the axle arm, as Figures 2-8As shown in the figure, in the preparation stage, a forklift or lifting equipment is used to convey the axle to the detection base 1 for fixation. After the fixation is completed, when determining the size and the specific position on the axle arm as the bearing point, driven by the disc motor 41, the first rotating rod 42 and the second gear 422 rotate. At the same time, the second gear 422 drives the third gear 43 to rotate. At the same time, the third gear 43 drives the second connecting rod 432 and the third slider 4321 to rotate, and drives the fixing plate 44 and the elliptical disc 442 to rotate together with the C-shaped block 1232 as the fulcrum. At this time, the rotation of the elliptical disc 442 drives the rotation of the circular disc 1234 together. The circular disc 1234 drives the second threaded rod 31 to rotate at the same time, and adjusts the positions of the sliding column 311 and the pressing claw 32 by using the second threaded rod 31, so that the pressing claw 32 can accurately press down to apply pressure to the axle arm, facilitating subsequent detection;

[0039] It should be noted that when the contact surface between the elliptical disc 442 and the circular disc 1234 gradually rotates to a position with a smaller diameter, the elliptical disc 442 drives the circular disc 1234 to move upward. At this time, the circular disc 1234 will disengage from the fixed disc 313 because the buckle strip on the fixed disc 313 rotates to the vertical position. When it rotates to a position with a larger diameter of the elliptical disc 442 again, it will drive the second threaded rod 31 to rotate again. Then, if it is necessary to detect different bearing sections in the same detection, the second threaded rod 31 will periodically detect the bearing capacity of different positions of the axle arm;

[0040] As Figure 7 shown in the figure, after determining the position, while the support column 11 presses down for detection, the rotation of the third gear 43 drives the third rotating rod 431 to rotate at the same time, and the third rotating rod 431 drives the second protruding rod 4311 and the fourth gear 4312 to rotate. At the same time, the fourth gear 4312 drives the first gear 4213 and the first protruding rod 4212 to rotate. Because the diameters of the first gear 4213 and the fourth gear 4312 are the same and they are meshed with each other, the first protruding rod 4212 and the second protruding rod 4311 rotate at the same speed and in opposite directions. When the protruding part of the first protruding rod 4212 faces directly upward, the protruding part of the second protruding rod 4311 faces directly downward. At this time, the protruding parts of the first protruding rod 4212 and the second protruding part support the upper and lower sides of the inner wall of the sliding frame 21, fixing the entire sliding frame 21. Similarly, the detection column 3 is fixed at the same position. Then, the downward pressure intensity is determined by the depth of the downward movement of the support column 11 for detection, and it is also coordinated with the periodic detection of different positions of the pressing claw 32 driven by the second threaded rod 31 in the above text. Moreover, the bearing capacity of the axle arm is weaker in the middle section. After setting the detection section on the axle arm, the bearing capacity of different positions of the axle arm can be detected under the same pressure;

[0041] In addition, when it is necessary to check the load-bearing capacity of the axle arm of the vehicle on bumpy roads, as Figure 6 shown, driven by the servo motor 122, the first threaded rod 123 rotates, driving the first slider 1231 to move up and down. When driving the first slider 1231 to move downward, at this time, the position of the opposite C-shaped block 1232 on the fixed plate 44 moves downward. Then, during the process of the second connecting rod 432 driving the fixed plate 44 to rotate, the fixed plate 44 rotates with the downward-moved C-shaped block 1232 as the center point. At this time, the driven elliptical disk 442 also rotates eccentrically. At this time, the elliptical disk 442 drives the circular disk 1234 to move up and down reciprocally and rotate, driving the detection column 3 to move up and down together. Then, the downward movement of the support column 11 is used for detection under bumpy conditions;

[0042] It should be noted that, by the same token, under the continuous rotation of the first convex rod 4212 and the second convex rod 4311, the sliding frame 21 will also be driven to switch back and forth between fixation and relaxation. Connected by the hydraulic rod 211, the detection column 3 will also be switched back and forth between fixation and relaxation, and then cooperate with the elliptical disk 442 to form a complete simulation test of bumpy roads, so that when conducting the bump simulation test, a highly realistic effect can be achieved.

[0043] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A test structure for the bearing capacity of an axle arm, comprising a detection base (1), characterized in that: On both sides of the detection base (1), there are support columns (11) fixedly connected. Between the upper ends of the support columns (11), there is a transmission chamber (12) fixedly connected. Between the two transmission chambers (12), there is a detection chamber (2). At the bottom of the detection chamber (2), there is a detection column (3). At the bottom of the detection column (3), there is a pressing claw (32) for detecting the bearing capacity of the axle arm. Inside the detection chamber (2), there is a detection component (4). Inside the inner wall of the detection chamber (2), there is a sliding frame (21) slidably connected. At the bottom of the sliding frame (21), there is a hydraulic rod (211) fixedly connected. The end of the hydraulic rod (211) far from the sliding frame (21) is fixedly connected to the detection column (3).

2. The test structure for the load-bearing capacity of the axle arm according to claim 1, wherein: The transmission chamber (12) is in a state of being hollow inside. On one side outer wall of the transmission chamber (12), there is a square hole (121). At the top of the transmission chamber (12), there is a servo motor (122) fixedly connected. The output end of the servo motor (122) is fixedly connected to a first threaded rod (123). The first threaded rod (123) is rotatably connected inside the transmission chamber (12).

3. The test structure for the bearing capacity of the axle arm according to claim 2, characterized in that: The first threaded rod (123) is divided into a threaded part and a smooth part. On the outer wall of the threaded part of the first threaded rod (123), there is a first slider (1231) threadedly connected. On one side of the first slider (1231), there is a C-shaped block (1232) rotatably connected. On the outer wall of the smooth part of the first threaded rod (123), there is a second slider (1233) slidably connected. On one side of the second slider (1233), there is a circular disc (1234) fixedly rotatably connected.

4. A test structure for the load-bearing capacity of a vehicle axle arm, as described in claim 3, characterized in that: The detection column (3) is also in a state of being hollow inside. Inside the detection column (3), there is a second threaded rod (31) rotatably connected. The threads on the second threaded rod (31) are symmetrically distributed in the middle. On the outer wall of the second threaded rod (31), there is a sliding column (311) threadedly connected. At the bottom of the sliding column (311), there is a connecting column (312) fixedly connected. At the bottom of the connecting column (312), there is a pressing claw (32) fixedly connected.

5. The test structure for the load-bearing capacity of an axle arm according to claim 4, characterized in that: At both ends of the second threaded rod (31), there are fixed discs (313) fixedly connected. On the ends of the two fixed discs (313) far from the second threaded rod (31), there are snap strips. The fixed discs (313) are snap-connected to one side of the circular disc (1234).

6. The test structure for the load - bearing capacity of a vehicle axle arm according to claim 5, characterized in that: The detection component (4) includes a disc motor (41), the disc motor (41) is fixedly connected to the inner wall of the top of the detection chamber (2), the output end of the disc motor (41) is fixedly connected to a first rotating rod (42), a first connecting rod (421) is arranged on the outer wall of the first rotating rod (42), the first rotating rod (42) is rotatably connected to one end of the first connecting rod (421), the first connecting rod (421) is rotatably connected to a second rotating rod (4211) at the end far from the first connecting rod (421), a first convex rod (4212) is fixedly connected to the outer wall of the second rotating rod (4211), and a first gear (4213) is fixedly connected to the end of the first convex rod (4212) far from the first connecting rod (421).

7. The test structure for the load-bearing capacity of an axle bridge arm according to claim 6, characterized in that: A second gear (422) is fixedly connected to the end of the first rotating rod (42) far from the disc motor (41), a third gear (43) is meshed and connected to the bottom of the second gear (422), a third rotating rod (431) is fixedly connected through the center position of the third gear (43), a second convex rod (4311) is fixedly connected to the outer wall of the third rotating rod (431), a fourth gear (4312) is fixedly connected to the end of the second convex rod (4311) close to the third gear (43), and the fourth gear (4312) is meshed and connected to the first gear (4213).

8. The test structure for the load-bearing capacity of a vehicle bridge arm according to claim 7, characterized in that: The outer walls of the first convex rod (4212) and the second convex rod (4311) are both in a convex state, and the convex positions of the first convex rod (4212) and the second convex rod (4311) correspond to each other.

9. The test structure for the load-bearing capacity of an axle bridge arm according to claim 8, characterized in that: Both ends of the third rotating rod (431) are fixedly connected to second connecting rods (432), the second connecting rods (432) are rotatably connected to third sliders (4321) at the ends far from the third rotating rod (431), a cross column (441) is rotatably connected to the peripheral position of the third gear (43), a fixing plate (44) is fixedly connected to the end of the cross column (441) far from the third gear (43), a strip-shaped hole is formed on the surface of the fixing plate (44), and the third slider (4321) is slidably connected in the strip-shaped hole.

10. A test structure for the load-bearing capacity of an axle arm according to claim 9, characterized in that: An elliptical disc (442) is fixedly connected to the outer wall of the fixing plate (44), a plurality of convex blocks (443) are fixedly connected to the outer wall of the elliptical disc (442), and the outer wall of the elliptical disc (442) is connected to the outer wall of the circular disc (1234) by a sliding buckle.

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