Device for detecting fatigue strength of torsion bar springs of chassis of various vehicles

Abstract

The utility model discloses a device for detecting fatigue strength of torsion bar springs of chassis of various vehicles. The device structurally comprises an electrified positioning block, a parallel base, a protection plate, an electric control plate, a first detection body, a second detection body and a sliding rail, according to the utility model, the transverse slide rail is arranged on the parallel base as a basis, and the slide block at the lower end of the solid block of the second detection body slides in the slide rail, so that the distance between the detection rotating shaft in the convex block at the upper end of the solid block and the detection rotating shaft of the first detection body can be changed, and therefore, the torsion bar spring detection device can be matched with various torsion bar springs with different lengths; the torsion bar spring detection device can effectively adapt to torsion bar springs with different lengths for detection, a large number of driving parts can be saved for use through manual pushing of the control push block on the solid block, and the effects of saving cost and improving the practicability of the whole detection device can be achieved.

Description

A testing device for the fatigue strength of torsion bar springs in the chassis of various vehicle types. Technical Field

[0001] This utility model relates to the field of automotive chassis torsion bar spring testing technology, specifically a testing device for the fatigue strength of chassis torsion bar springs in various types of vehicles. Background Technology

[0002] Torsion bar springs in automotive chassis have the characteristics of high energy absorption rate, compact structure, strong load-bearing capacity, and no need for lubrication, which can improve the stability of driving when used in automobiles.

[0003] Therefore, torsion bar springs must undergo rigorous fatigue strength testing before leaving the factory. This can assess the performance changes of the torsion bar springs after long-term use, screen out qualified springs for use in automotive parts, improve the strength of the torsion bar springs when they are put into the market, enhance the safety factor of the car when driving, and prevent safety accidents caused by spring failure due to severe fatigue.

[0004] However, the existing testing device has the following drawbacks: Because the current testing device uses two sets of rotating test components to repeatedly rotate the torsion bar spring's axis to simulate the stress state during use, the distance between the two sets of rotating test components is fixed. However, due to the different models and sizes of automobiles, the length of the torsion bar springs produced will vary. Therefore, the current testing device cannot adapt to various torsion bar spring lengths, making it easy for some longer or shorter springs to be unsuitable for testing. This reduces the applicability of the current testing device, thus diminishing its practicality and ease of use. Summary of the Invention

[0005] To address the aforementioned problems, this utility model provides a testing device for the fatigue strength of torsion bar springs in the chassis of various types of vehicles.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a testing device for the fatigue strength of torsion bar springs in the chassis of various vehicles, the structure of which includes: an energized positioning block, a parallel base, a protective plate, an electrical control board, a first detection body, a second detection body, and a slide rail. The energized positioning block is fixed to the lower end of the parallel base, and the left and right edges of the surface of the parallel base are fixedly connected to the protective plate. The electrical control board is embedded in the protective plate and electrically connected to the energized positioning block. The first and second detection bodies are vertically positioned on the surface of the parallel base, and a slide rail is opened at the center of the surface of the parallel base to allow the second detection body to be vertically embedded.

[0007] Furthermore, the second detection body is also equipped with a control push block. The control push block is welded to the left and right sides of the surface of the solid block and a protrusion is fixed in the middle. The left and right sides of the center of the protrusion are connected to the support columns to position the detection shaft at the center of the protrusion. The lower end of the solid block is also connected to a slider. An anti-deviation rod is set in the center of the slider and is set in the slide rail in a parallel position.

[0008] Furthermore, the second detection body can be used via the slide rail on the parallel base. The solid block of the second detection body can be manually moved by the push block to adjust the distance between it and the first detection body by sliding the slider in the slide rail area. Then, the support column in the protrusion is used to position the detection shaft.

[0009] Furthermore, the power-on positioning block is solid and is vertically positioned at the lower center of the parallel base. It is electrically connected to the electrical control board in the protective plate via a power line. The first and second detection bodies are electrically connected to the electrical control board via a line. The slide rail is opened in a parallel orientation, allowing the second detection body to move and adjust in parallel.

[0010] Furthermore, the control push block is set symmetrically on the left and right sides of the solid block surface, and the solid block contains two pillars inside the protrusion to position the detection shaft. The slider is embedded vertically inside the slide rail.

[0011] Furthermore, the anti-deviation rod is also provided with a connecting block, which is fixedly connected to the first connecting plate. The first connecting plate is installed on the side of the slide rail through the connecting block, and the second connecting plate is also provided in the opposite direction of the first connecting plate. The second connecting plate is also provided with a welding plate and is fixedly connected to the other end of the slide rail. A rotating block is provided at the center of the second connecting plate to drive the restraining rod and the locking head to rotate. The restraining rod and the locking head are threadedly connected to the center of the first connecting plate through the rotating block and the center of the slider.

[0012] Furthermore, the connecting block is perpendicular to the first connecting plate and coincides with the center point of the second connecting plate. The center of the second connecting plate has a circular groove that allows the restraining rod to pass through in a straight line. The restraining rod is perpendicular to the rotating block.

[0013] Furthermore, the contact area between the slider and the slide rail is also provided with an auxiliary roller. The auxiliary roller is embedded in the bottom part of the protective frame, and a vertical groove is opened inside the protective frame. The magnetic wall is covered by the vertical groove and the magnetic wall is connected to clamps on the left and right sides to fix the slider on the left and right sides.

[0014] Furthermore, the auxiliary rollers are arranged in a straight line at the lower end of the protective frame and are in parallel contact with the slide rail. The shape of the vertical groove is consistent with the size of the slider. The clamping blocks on the left and right sides of the magnetic wall are arranged symmetrically to vertically position and cover the slider. Beneficial effects

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model is based on opening a transverse slide rail on a parallel base. Then, the slider at the lower end of the solid block of the second detection body slides in the slide rail, thereby changing the distance between the detection shaft in the upper protrusion of the solid block and the detection shaft of the first detection body. Therefore, it can match torsion bar springs of various lengths, so that it can effectively adapt to various torsion bar springs of different lengths for detection. Furthermore, the manual pushing of the control push block on the solid block can save a lot of drive components, thus achieving the effect of saving costs and improving the practicality of the overall detection device.

[0017] 2. This utility model further improves upon the anti-deviation rod at the center of the slider by installing connecting plate one and connecting plate two at both ends of the slide rail. Connecting plate one is stationary, and the restraining rod at the center of connecting plate two can be manually rotated via a rotating block. This allows the restraining rod to rotate and penetrate until its locking head is connected and fixed to the center of connecting plate one, ensuring that the slider can slide on the surface of the restraining rod. The cooperation of the restraining rod effectively improves the parallelism of the second detection body in the slide rail, preventing tilting and jamming during movement, and improving the accuracy of the position adjustment of the second detection body.

[0018] 3. Based on the protective frame added to the outside of the slider, the new utility model utilizes multiple auxiliary rollers on the lower layer of the protective frame to slide within the slide rail, thereby avoiding wear on metal parts caused by direct contact between the slider and the slide rail, thus improving the smoothness of position adjustment. Furthermore, the vertical groove of the protective frame can be fixedly connected to the slider using magnetic walls and clamps, improving the strength of the two as a whole, avoiding loosening during movement due to gaps, and ensuring the stability of the component during use. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the structure of a device for testing the fatigue strength of torsion bar springs in chassis of various types of vehicles according to this utility model.

[0020] Figure 2 is a cross-sectional structural schematic diagram of an improved No. 2 detection body according to this utility model.

[0021] Figure 3 is a three-dimensional structural schematic diagram of an improved anti-deviation rod according to this utility model.

[0022] Figure 4 is a cross-sectional structural schematic diagram of an additional external component of the slider according to the present invention.

[0023] In the diagram: Power-on positioning block-1, parallel base-2, protective plate-3, electrical control board-4, detection body 1-5, detection body 2-6, slide rail-7;

[0024] Control push block-61, solid block-62, protrusion block-63, support column-64, detection shaft-65, slider-66, anti-deviation rod-67;

[0025] Connecting block-671, connecting plate one-672, connecting plate two-673, welding plate-674, rotating block-675, restraining rod-676, locking head-677;

[0026] Auxiliary roller-661, protective frame-662, vertical groove-663, magnetic wall-664, clamping block-665. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Embodiments

[0029] As shown in Figures 1-4, this utility model provides a device for testing the fatigue strength of torsion bar springs in the chassis of various types of vehicles.

[0030] Its structure includes an energized positioning block 1, a parallel base 2, a protective plate 3, an electrical control board 4, a first detection body 5, a second detection body 6, and a slide rail 7. The energized positioning block 1 is fixed to the lower end of the parallel base 2, and the left and right edges of the surface of the parallel base 2 are fixedly connected to the protective plate 3. The electrical control board 4 is embedded in the protective plate 3 and electrically connected to the energized positioning block 1. The first detection body 5 and the second detection body 6 are set vertically on the surface of the parallel base 2, and a slide rail 7 is opened in the center of the surface of the parallel base 2 to allow the second detection body 6 to be vertically embedded.

[0031] The second detection body 6 is also provided with a control push block 61. The control push block 61 is welded to the left and right sides of the surface of the solid block 62 and a protrusion 63 is fixed in the middle. The left and right sides of the center of the protrusion 63 are connected to the support column 64 to position the detection shaft 65 at the center of the protrusion 63. The lower end of the solid block 62 is also connected to a slider 66. The center of the slider 66 is provided with an anti-deviation rod 67, which is set in parallel in the slide rail 7.

[0032] The second detection body 6 can be used via the slide rail 7 on the parallel base 2. The solid block 62 of the second detection body 6 can be manually driven by the push block 61 to slide the slider 66 in the area of ​​the slide rail 7 to adjust the distance between it and the first detection body 5. Then, the support column 64 in the protrusion 63 is used to position the detection shaft 65.

[0033] The power-on positioning block 1 is solid and is vertically positioned at the lower center of the parallel base 2. It is electrically connected to the electrical control board 4 in the protective plate 3 via a power line. The first detection body 5 and the second detection body 6 are electrically connected to the electrical control board 4 via a line. The slide rail 7 is opened in a parallel position to allow the second detection body 6 to move and adjust in parallel.

[0034] The control push block 61 is set symmetrically on the left and right sides of the surface of the solid block 62. The protrusion 63 of the solid block 62 contains two support pillars 64 to position the detection shaft 65. The slider 66 is embedded vertically inside the slide rail 7.

[0035] The anti-deviation rod 67 is also provided with a connecting block 671, which is fixedly connected to the connecting plate 672. The connecting plate 672 is installed on the side of the slide rail 7 through the connecting block 671. The connecting plate 672 is also provided with a connecting plate 673 in the opposite direction. The connecting plate 673 is also provided with a welding plate 674, which is fixedly connected to the other end of the slide rail 7. The connecting plate 673 has a rotating block 675 at its center, which drives the restraining rod 676 and the locking head 677 to rotate. The restraining rod 676 and the locking head 677 are threadedly connected to the center of the connecting plate 672 through the rotating block 675 and the center of the slider 66 is also connected through the connecting plate 672.

[0036] The connecting block 671 is perpendicular to the connecting plate 672 and coincides with the center point of the connecting plate 673. The connecting plate 673 has a circular groove in the center to allow the restraining rod 676 to pass through in a straight line. The restraining rod 676 is perpendicular to the rotating block 675.

[0037] The contact area between the slider 66 and the slide rail 7 is also provided with an auxiliary roller 661. The auxiliary roller 661 is embedded in the bottom part of the protective frame 662 and the protective frame 662 has a vertical groove 663. The magnetic wall 664 is covered by the vertical groove 663 and covers the inner wall area of ​​the protective frame 662. The magnetic wall 664 is also connected to clamps 665 on the left and right sides to fix the slider 66 on the left and right sides.

[0038] The auxiliary roller 661 is arranged in a straight line at the lower end of the protective frame 662 and is in parallel contact with the slide rail 7. The vertical groove 663 is shaped and has the same size as the slider 66. The clamping blocks 665 on the left and right sides of the magnetic wall 664 are arranged symmetrically to vertically position and cover the slider 66.

[0039] The working principle of this utility model is explained below: The parallel base 2 of the torsion bar spring fatigue strength testing device can be fixedly electrically connected to the energized area through the bottom energized positioning block 1, so that the electrical control board 4 in the protective plate 3 and the first and second detection bodies 5 and 6 are energized. Then, the distance between the second detection body 6 and the first detection body 5 is adjusted by the slide rail 7. This can match torsion bar springs of various lengths, so as to avoid the inability to fix and test due to length mismatch. Then, the solid block 62 of the second detection body 6 can be manually pushed by the control push block 61, so that the lower slider 66 can slide linearly in the area of ​​the slide rail 7 in conjunction with the anti-deviation rod 67, thereby adjusting the distance between the detection shaft 65 of the first detection body 5 and the second detection body 6. This ensures that the two ends of torsion bar springs of different lengths can be connected to the detection shaft 65 of the first and second detection bodies 5. Then, the detection shafts 65 on the left and right sides detect the fatigue of the torsion bar springs through the rotation detection characteristics, and the obtained data will be fed back. The data from the control board 4 is then used to determine the mass and strength of the torsion bar spring. The connecting plates 672 and 673 on both sides of the anti-deviation rod 67 can then be installed on the edge of the slide rail 7 via the connecting block 671 and the welding plate 674. The circular hole in the center of the connecting plate 673 allows the restraining rod 676 to pass through, enabling the restraining rod 676 to rotate via the rotating block 675. This causes the restraining rod 676 to drive the locking head 677 closer to the connecting plate 672. The center of plate 672 is designed so that the locking head 677 locks into the center of the connecting plate 672, facilitating assembly and disassembly and providing strong restraint on the displacement of the second detection body 6, preventing tilting and jamming during sliding. Furthermore, the protective frame 662 added to the outside of the slider 66 can be connected to the slider 66 via the magnetic wall 664 and clamping block 665 inside the vertical groove 663, ensuring a firm and integrated effect and preventing loosening or instability during movement. The addition of the protective frame 662 also prevents gradual metal wear caused by direct contact between the surface of the slider 66 and the surface of the slide rail 7, extending the service life of both. Simultaneously, the multiple auxiliary rollers 661 at the lower end of the protective frame 662 can slide in the slide rail 7 area, improving the stability and smoothness of the second detection body 6's position adjustment in the slide rail area, further increasing the overall practicality and durability of the device.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for testing the fatigue strength of torsion bar springs in chassis of various vehicle types, comprising: The system comprises an energized positioning block (1), a parallel base (2), a protective plate (3), an electrical control board (4), a first detection body (5), a second detection body (6), and a slide rail (7). The energized positioning block (1) is fixed to the lower end of the parallel base (2), and the left and right edges of the surface of the parallel base (2) are fixedly connected to the protective plate (3). The electrical control board (4) is embedded in the protective plate (3) and electrically connected to the energized positioning block (1). The first detection body (5) and the second detection body (6) are vertically positioned on the surface of the parallel base (2), and a slide rail (7) is opened at the center of the surface of the parallel base (2) to allow the second detection body (6) to be vertically embedded. The second detection body (6) is further provided with a control push block (61), which is welded to a solid block (62). The surface of the solid block (62) is fixed with protrusions (63) on both sides and in the middle. The protrusions (63) are connected to pillars (64) on both sides of the center to position the detection shaft (65) in the center of the protrusions (63). The solid block (62) is connected to a slider (66) at the bottom. The slider (66) is provided with an anti-deviation rod (67) in the center. The anti-deviation rod (67) is set in the slide rail (7) in a parallel position. The second detection body (6) can be used through the slide rail (7) on the parallel base (2). The solid block (62) of the second detection body (6) can be manually driven by the control push block (61) to slide the slider (66) in the area of ​​the slide rail (7) to adjust the distance between it and the first detection body (5). Then, the pillars (64) in the protrusions (63) are used to position the detection shaft (65).

2. The device for testing the fatigue strength of torsion bar springs in chassis of various vehicles according to claim 1, characterized in that: The power-on positioning block (1) is solid and is set vertically at the lower center of the parallel base (2). It is electrically connected to the power control board (4) in the protective plate (3) through the power line. The first detection body (5) and the second detection body (6) are electrically connected to the power control board (4) through the line. The slide rail (7) is opened in the parallel direction and allows the second detection body (6) to move and adjust in parallel.

3. The device for testing the fatigue strength of torsion bar springs in chassis of various vehicles according to claim 1, characterized in that: The control push block (61) is set symmetrically on the left and right sides of the surface of the solid block (62). The protrusion (63) of the solid block (62) contains two pillars (64) to position the detection shaft (65). The slider (66) is embedded vertically inside the slide rail (7).

4. The device for testing the fatigue strength of torsion bar springs in chassis of various vehicles according to claim 1, characterized in that: The anti-deviation rod (67) is also provided with a connecting block (671), which is fixedly connected to the first connecting plate (672). The first connecting plate (672) is installed on the side of the slide rail (7) through the connecting block (671), and the first connecting plate (672) is also provided with a second connecting plate (673) in the opposite direction. The second connecting plate (673) is also provided with a welding plate (674) which is fixedly connected to the other end of the slide rail (7). The center of the second connecting plate (673) is provided with a rotating block (675) to drive the restraining rod (676) and the locking head (675). 7) Rotate, the restraining rod (676) and the locking head (677) pass through the center of the connecting plate two (673) and the center of the connecting plate one (672) through the rotating block (675) and pass through the center of the slider (66); the connecting block (671) is perpendicular to the connecting plate one (672) and coincides with the center point of the connecting plate two (673). The center of the connecting plate two (673) has a circular groove so that the restraining rod (676) passes through in a straight line. The restraining rod (676) and the rotating block (675) are perpendicular to each other.

5. The device for testing the fatigue strength of torsion bar springs in chassis of various vehicles according to claim 1, characterized in that: The contact area between the slider (66) and the slide rail (7) is also provided with an auxiliary roller (661). The auxiliary roller (661) is embedded in the bottom part of the protective frame (662) and the protective frame (662) has a vertical groove (663) inside. The magnetic wall (664) is covered by the vertical groove (663) and the magnetic wall (664) is connected to clamps (665) on the left and right sides to fix the slider (66) on the left and right sides. The auxiliary roller (661) is arranged in a straight line at the lower end of the protective frame (662) and is in parallel contact with the slide rail (7). The shape of the vertical groove (663) is consistent with the size of the slider (66). The clamps (665) on the left and right sides of the magnetic wall (664) are arranged symmetrically to vertically position and cover the slider (66).

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