A torsion bar spring load maintaining detection device

Abstract

The present application relates to the technical field of detecting structure, and particularly relates to a torsion bar spring load maintaining detection device, which comprises two clamping units oppositely arranged, and the two clamping units are respectively used for driving two ends of the torsion bar spring to move transversely and rotate; the clamping unit comprises a moving table, a transmission wheel and a track, and the moving table reciprocates on a horizontal plane along a direction perpendicular to a vertical line between the two clamping units; by arranging the two oppositely distributed clamping units and utilizing the transverse movement of the moving table on the horizontal plane, the automatic conveying function of the torsion bar spring between the two clamping units can be realized, the detection work of the torsion bar spring can be integrated into the production line, and the automation degree of the overall manufacturing process is improved; meanwhile, by utilizing the different transmission ratios between the transmission wheels on the two clamping units and the corresponding tracks, the speed difference of the two ends of the torsion bar spring is generated when moving, and the torsional deformation detection of the torsion bar spring can be realized synchronously in the conveying process by utilizing the speed difference.

Description

Technical Field

[0001] This invention relates to the technical field of detection structures, and in particular to a torsion bar spring load-bearing detection device. Background Technology

[0002] A torsion bar spring is a mechanical component that utilizes the torsional stiffness of a rod-shaped elastic body section to achieve elastic energy storage and buffering functions. It is widely used in suspension systems of automobiles, rail transit, special vehicles, and precision mechanical loading mechanisms. Its working principle is based on the physical property that a material generates a restoring torque when subjected to torque within its elastic range. Energy storage and release are achieved through the torsional deformation of the torsion bar. It is a key component that determines the load-bearing capacity, ride comfort, and safety of the system.

[0003] Currently, the conventional technique for testing the performance of torsion bar springs involves clamping and fixing both ends of the spring between a rigid base and a loading mechanism. A driving mechanism then applies a torsional force to one end of the spring, causing a predetermined angle of torsional deformation. The structural integrity is then observed under these conditions to determine if plastic deformation, cracking, or other failure modes occur. While this method can verify basic performance, it is essentially an offline testing mode. The testing process relies on an external dedicated testing platform for workpiece clamping, loading, and observation. The testing process is disconnected from the torsion bar spring production line and cannot be integrated into a continuous manufacturing process, resulting in low efficiency between the testing and production processes. Furthermore, such testing devices typically employ independent mechanical structures, multi-stage transmission systems, and complex manual or semi-automatic operating interfaces, leading to high overall structural redundancy and making it difficult to meet the modern manufacturing system's requirements for automation, online operation, and high consistency in the testing process. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a torsion bar spring load-holding detection device, the specific technical solution of which is as follows: The present invention provides a torsion bar spring load-bearing detection device, comprising two clamping units arranged opposite to each other, wherein the two clamping units are respectively used to drive the two ends of the torsion bar spring to move laterally and rotate. The clamping unit includes a moving platform, a transmission wheel, and a track. The moving platform reciprocates on a horizontal plane along a direction perpendicular to the vertical line connecting the two clamping units. The transmission wheel is mounted on the moving platform and can rotate. The length direction of the track is parallel to the moving direction of the moving platform, and the transmission wheel is connected to the track in a transmission manner. The transmission ratios between the transmission wheels and the track on the two clamping units are not equal.

[0005] Furthermore, the transmission wheel is conical in shape, the track makes transmission contact with the conical surface of the transmission wheel, and the track is movable along the intersection of the vertical plane containing the axis of the transmission wheel and the conical surface of the transmission wheel.

[0006] Furthermore, the track includes a support platform, a guide plate 1 and a transmission bar 2 disposed on the support platform, and a transmission bar 1 disposed on the guide plate 1. The transmission bar 1 or the transmission bar 2 is in transmission contact with the transmission wheel. The guide plate 1 is inclined and the transmission bar 1 is movably disposed on the guide plate 1. In this case, the transmission ratio between the transmission bar on the two clamping units and the corresponding transmission wheel is equal.

[0007] Furthermore, the track also includes a second guide plate corresponding to the first guide plate and a third transmission bar corresponding to the first transmission bar, the third transmission bar being movably disposed on the second guide plate; Wherein, the two values ​​of the transmission ratio between the two transmission bars one and the corresponding transmission wheel are reciprocals of the two values ​​of the transmission ratio between the two transmission bars two and the corresponding transmission wheel.

[0008] Furthermore, horizontal stripes are provided on one side of the back of the first guide plate and one side of the back of the second guide plate. Both the first guide plate and the second guide plate are provided with horizontal toothed plates that cooperate with the horizontal stripes. The horizontal toothed plates are fastened to the first transmission bar or the third transmission bar by bolts.

[0009] Furthermore, a fixed sleeve is coaxially arranged on the transmission wheel, the transmission wheel is rotatably arranged on the moving platform through the fixed sleeve, a detection sleeve is rotatably arranged inside the fixed sleeve, and the fixed sleeve and the detection sleeve are connected by a pressure gauge; A clamping structure for holding the end of the torsion bar spring is provided inside the detection sleeve.

[0010] Furthermore, the clamping structure includes a hydraulic cylinder disposed at the end of the detection sleeve and a movable disc that moves within the detection sleeve, wherein the output end of the hydraulic cylinder is connected to the movable disc; Several inclined platforms are provided in the circumferential direction of the inner wall of the detection sleeve. A right-angle clamp is slidably arranged on the inclined platform. One end of the right-angle clamp is rotatably connected to the movable disk, and the other end of the right-angle clamp is used to compress the torsion bar spring.

[0011] Furthermore, a guide groove is provided on the inclined platform. The guide groove is composed of an inclined groove and a straight groove. The straight groove is arranged along the radial direction of the detection sleeve. A sliding column is slidably arranged in the guide groove and is connected to the right-angle clamp.

[0012] The beneficial effects of this invention are as follows: By setting up two oppositely distributed clamping units and utilizing the lateral movement of the moving table on the horizontal plane, the torsion bar spring can be automatically transported between the two clamping units. This facilitates the integration of torsion bar spring inspection into the production line, improving the automation level of the overall manufacturing process. Simultaneously, by utilizing the unequal transmission ratios between the drive wheels and corresponding tracks on the two clamping units, a speed difference is generated at both ends of the torsion bar spring during movement. This speed difference allows for simultaneous detection of torsional deformation of the torsion bar spring during transport. Furthermore, by using the speed difference generated during the rolling transport of the two drive wheels to provide different rotational forces to the two ends of the torsion bar spring, a separate drive source for the ends of the torsion bar spring is eliminated, effectively simplifying the structure and improving ease of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a torsion bar spring load-holding detection device. Figure 2 for Figure 1 Schematic diagram of the middle clamping unit; Figure 3 for Figure 2 A schematic diagram of the exploded structure; Figure 4 for Figure 3 Schematic diagram of the middle track structure; Figure 5 for Figure 4 A structural diagram from another perspective; Figure 6 for Figure 3 A cross-sectional view of the central drive wheel; Figure label: 1. Clamping unit; 2. Moving table; 3. Drive wheel; 4. Track; 5. Support platform; 6. Guide plate one; 7. Drive bar one; 8. Drive bar two; 9. Guide plate two; 10. Drive bar three; 11. Horizontal toothed plate; 12. Fixed sleeve; 13. Detection sleeve; 14. Pressure gauge; 15. Hydraulic cylinder; 16. Movable plate; 17. Right-angle clamping plate; 18. Inclined platform; 19. Inclined groove; 20. Straight groove; 21. Sliding column. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0018] like Figures 1 to 6 As shown, a torsion bar spring load-bearing detection device of the present invention includes two clamping units 1 arranged opposite to each other, the two clamping units 1 being used to drive the two ends of the torsion bar spring to move laterally and rotate respectively; The clamping unit 1 includes a moving table 2, a transmission wheel 3, and a track 4. The moving table 2 moves back and forth on a horizontal plane along a direction perpendicular to the vertical line connecting the two clamping units 1. The transmission wheel 3 is mounted on the moving table 2 and can rotate. The length direction of the track 4 is parallel to the moving direction of the moving table 2, and the transmission wheel 3 is connected to the track 4 in a transmission manner. Among them, the transmission ratios between the transmission wheels 3 and the track 4 on the two clamping units 1 are not equal.

[0019] In this invention, two clamping units 1 are distributed in a left-right opposite manner on the same horizontal plane. The torsion bar spring can be set between the two clamping units 1, thereby fixing the two ends of the torsion bar spring through the two clamping units 1 and driving the two ends of the torsion bar spring to move independently. The moving table 2 can move on the horizontal plane, and its moving power can be provided by a structure such as a motor, lead screw, and guide rail. Thus, the movement of the moving table 2 can realize the conveying of the torsion bar spring on the horizontal plane, making it convenient to incorporate it into the production line.

[0020] The transmission wheel 3 can be connected to the corresponding track 4. That is, when the moving table 2 moves, the moving table 2 drives the transmission wheel 3 to move on the track 4, which can provide rotational power to the end of the torsion bar spring. At the same time, since the transmission ratio between the transmission wheel 3 on the two clamping units 1 and the corresponding track 4 is not equal, the two ends of the torsion bar spring can have different rotational speeds. Using this speed difference, the torsion bar spring can be torsional during the conveying process, causing the torsion bar spring to undergo elastic deformation, thus realizing the dynamic detection function of the torsion bar spring. When the transmission wheel 3 moves to the unloading position, the end of the torsion bar spring is removed from the transmission wheel 3, and the moving table 2 moves in the opposite direction to the initial position, which facilitates the detection of the next torsion bar spring.

[0021] When the transmission ratio between the drive wheel 3 and the track 4 in one clamping unit 1 is large, the rotational speed of the end of the torsion bar spring corresponding to that clamping unit 1 is relatively low. Meanwhile, when the transmission ratio between the drive wheel 3 and the track 4 in another clamping unit 1 is relatively small, the rotational speed of the end of the torsion bar spring corresponding to that clamping unit 1 is relatively high.

[0022] By setting up two oppositely distributed clamping units 1 and utilizing the lateral movement of the moving table 2 on the horizontal plane, the torsion bar spring can be automatically conveyed between the two clamping units 1. This facilitates the integration of the torsion bar spring inspection work into the production line, improving the automation level of the overall manufacturing process. At the same time, by utilizing the unequal transmission ratio between the transmission wheels 3 on the two clamping units 1 and the corresponding tracks 4, a speed difference is generated at both ends of the torsion bar spring during movement. This speed difference can be used to simultaneously detect the torsional deformation of the torsion bar spring during the conveying process. By utilizing the speed difference generated when the two transmission wheels 3 roll and convey, different rotational forces are provided to the two ends of the torsion bar spring, thus eliminating the need to set up a separate drive source for the ends of the torsion bar spring, effectively simplifying the structure and improving ease of use.

[0023] Furthermore, the transmission wheel 3 is conical in shape, the track 4 is in transmission contact with the conical surface of the transmission wheel 3, and the track 4 is movable along the intersection line of the vertical plane containing the axis of the transmission wheel 3 and the conical surface of the transmission wheel 3.

[0024] Since the track 4 is set horizontally, the contact position between the transmission wheel 3 and the track 4 is located on the generatrix at the lowest side of the cone surface of the transmission wheel 3. When the track 4 moves along the generatrix, the transmission wheel 3 and the track 4 maintain a transmission state, and the transmission ratio between the transmission wheel 3 and the track 4 changes. This allows adjustment of the speed difference between the two ends of the torsion bar spring, making it convenient to adjust the torsion angle of the torsion bar spring.

[0025] Furthermore, the track 4 includes a support platform 5, a guide plate 6 and a transmission bar 8 disposed on the support platform 5, and a transmission bar 7 disposed on the guide plate 6. The transmission bar 7 or the transmission bar 8 is in transmission contact with the transmission wheel 3. The guide plate 6 is inclined and the transmission bar 7 is movable on the guide plate 6. In this case, the transmission ratio between the transmission bar 8 on the two clamping units 1 and the corresponding transmission wheel 3 is equal.

[0026] The support platform 5 provides support for the guide plate 6, the transmission bar 7, and the transmission bar 8. The guide plate 6 is set parallel to the generatrix on the lower left side of the transmission wheel 3. The transmission bar 7 is connected to the transmission wheel 3. When the moving platform 2 moves, the transmission wheel 3 rolls on the transmission bar 7. When the position of the transmission bar 7 on the guide plate 6 changes, the transmission ratio between the transmission bar 7 and the transmission wheel 3 changes, thereby adjusting the speed difference between the two ends of the torsion bar spring and the torsion angle of the torsion bar spring.

[0027] The second transmission bar 8 is located behind the travel of the transmission wheel 3, and at least one of the transmission bars 7 and 8 is in transmission contact with the transmission wheel 3. That is, when the transmission wheel 3 moves to the tail of the first transmission bar 7, the transmission wheel 3 separates from the first transmission bar 7, and the transmission wheel 3 is connected to the second transmission bar 8. The second transmission bar 8 on the two clamping units 1 has the same transmission ratio as the corresponding transmission wheel 3. Thus, when the transmission wheel 3 rolls on the first transmission bar 7 and provides a specified torsion angle to the torsion bar spring, the two transmission wheels 3 can move at the same speed on the corresponding second transmission bar 8, thereby allowing the torsion bar spring to maintain its torsion angle for a specified time and realizing the load-bearing detection function of the torsion bar spring.

[0028] Furthermore, the track 4 also includes a second guide plate 9 corresponding to the first guide plate 6 and a third transmission bar 10 corresponding to the first transmission bar 7. The third transmission bar 10 is movably mounted on the second guide plate 9. Among them, the two values ​​of the transmission ratio between the two transmission bars 7 and the corresponding transmission wheel 3 are reciprocals of the two values ​​of the transmission ratio between the two transmission bars 8 and the corresponding transmission wheel 3.

[0029] Transmission bar 1 7 and transmission bar 3 10 are located on both sides of transmission bar 2 8, and guide plate 1 6 and guide plate 2 9 are located on both sides of transmission bar 2 8.

[0030] After the transmission wheel 3 moves a specified distance on the transmission bar 8, the torsion spring is held for a specified time. At this time, the torsion spring is still in a torsional deformation state. Once the transmission wheel 3 is separated from the end of the torsion spring, the torsion spring will move violently based on its own elastic deformation, which will cause harm to workers and equipment. To avoid this phenomenon, the torsion spring needs to return to its natural state when released. That is, by using the above-mentioned structural method, when the transmission wheel 3 moves from the transmission bar 8 to the transmission bar 10, the speed difference between the two ends of the torsion spring changes, and the torsion spring twists in the opposite direction, thereby making the elastic force of the torsion spring gradually disappear, so as to achieve stable feeding of the torsion spring.

[0031] The two values ​​of the transmission ratio between the two transmission bars 7 and the corresponding transmission wheel 3 can provide a positive speed difference between the two ends of the torsion bar spring, thereby causing the torsion bar spring to twist and deform. The two values ​​of the transmission ratio between the two transmission bars 30 and the corresponding transmission wheel 3 are the reciprocals of the above two values, thereby using the two transmission bars 30 to provide a reverse speed difference between the two ends of the torsion bar spring.

[0032] Furthermore, horizontal stripes are provided on one side of the back of guide plate 16 and one side of the back of guide plate 29. Both guide plate 16 and guide plate 29 are provided with horizontal toothed plates 11 that cooperate with the horizontal stripes. The horizontal toothed plates 11 are fastened to transmission bar 17 or transmission bar 30 by bolts.

[0033] The length direction of the horizontal stripes is along the moving direction of the moving table 2. The horizontal toothed plate 11 has the same horizontal stripe structure, so that the horizontal toothed plate 11 can be used in conjunction with the corresponding guide plate 6 or guide plate 9. When the horizontal toothed plate 11 is fastened to the transmission bar 7 or transmission bar 3 10 by bolts, it is convenient to fix the transmission bar 7 and transmission bar 3 10 on the guide plate 6 and guide plate 9 respectively, thereby improving the fastening strength of the transmission bar 7 and transmission bar 3 10 and avoiding slippage that could cause detection errors.

[0034] Furthermore, a fixed sleeve 12 is coaxially arranged on the transmission wheel 3, and the transmission wheel 3 is rotatably arranged on the moving table 2 through the fixed sleeve 12. A detection sleeve 13 is rotatably arranged inside the fixed sleeve 12, and the fixed sleeve 12 and the detection sleeve 13 are connected by a pressure gauge 14. A clamping structure for clamping the end of the torsion bar spring is provided inside the detection sleeve 13.

[0035] The fixed sleeve 12 provides support for the detection sleeve 13 and the transmission wheel 3. When the transmission wheel 3 rolls on the track 4, it can drive the detection sleeve 13 to rotate through the fixed sleeve 12 and the pressure gauge 14. The detection sleeve 13 can drive the end of the torsion bar spring to rotate through the clamping structure. The pressure gauge 14 can detect the force between the fixed sleeve 12 and the detection sleeve 13, and thus detect the elastic force of the torsion bar spring when it is twisted. When the transmission wheel 3 moves from the transmission bar 7 to the transmission bar 8, the detection value of the pressure gauge 14 reaches its maximum. At this time, the detection value of the pressure gauge 14 can be used to determine whether the elastic force of the torsion bar spring after twisting at a specified angle meets the predetermined requirements, thereby realizing the detection of the elastic strength of the torsion bar spring.

[0036] Furthermore, the clamping structure includes a hydraulic cylinder 15 disposed at the end of the detection sleeve 13 and a movable disc 16 that moves within the detection sleeve 13, with the output end of the hydraulic cylinder 15 connected to the movable disc 16. Several inclined platforms 18 are provided in the circumferential direction of the inner wall of the detection sleeve 13. A right-angle clamp 17 is slidably arranged on the inclined platform 18. One end of the right-angle clamp 17 is rotatably connected to the movable disk 16, and the other end of the right-angle clamp 17 is used to compress the torsion bar spring.

[0037] The detection sleeve 13 passes through the transmission wheel 3 and the fixed sleeve 12. When the cylinder 15 extends or retracts, it can push the movable disc 16 to move. The movable disc 16 can push several right-angle clamps 17 to move synchronously. The inclined platform 18 guides the right-angle clamps 17, so that the several right-angle clamps 17 move closer or further away from the axis of the transmission wheel 3 synchronously. When it is necessary to fix the end of the torsion bar spring, the ends of the several right-angle clamps 17 move closer to each other and squeeze the torsion bar spring, thereby realizing the fastening of the torsion bar spring.

[0038] Furthermore, a guide groove is provided on the inclined platform 18. The guide groove is composed of an inclined groove 19 and a straight groove 20. The straight groove 20 is arranged along the radial direction of the detection sleeve 13. A sliding column 21 is slidably arranged in the guide groove and is connected to the right angle clamp 17.

[0039] When it is necessary to fix the end of the torsion bar spring, the movable plate 16 pushes the right angle clamp 17 to move, and the right angle clamp 17 pushes the slide column 21 to slide in the inclined groove 19. At this time, the right angle clamp 17 extends beyond the detection sleeve 13 and approaches the end of the torsion bar spring. When the slide column 21 moves in the straight groove 20, several right angle clamps 17 move closer to each other synchronously and fix the end of the torsion bar spring. This method can set the fixing position of the torsion bar spring outside the transmission wheel 3, thereby facilitating the loading and unloading of the torsion bar spring.

[0040] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A torsion bar spring load-bearing detection device, characterized in that, It includes two clamping units arranged opposite each other, and the two clamping units are respectively used to drive the two ends of the torsion bar spring to move laterally and rotate. The clamping unit includes a moving platform, a transmission wheel, and a track. The moving platform reciprocates on a horizontal plane along a direction perpendicular to the vertical line connecting the two clamping units. The transmission wheel is mounted on the moving platform and can rotate. The length direction of the track is parallel to the moving direction of the moving platform, and the transmission wheel is connected to the track in a transmission manner. The transmission ratios between the transmission wheels and the track on the two clamping units are not equal.

2. The torsion bar spring load-bearing detection device according to claim 1, characterized in that, The transmission wheel is conical in shape, and the track makes transmission contact with the conical surface of the transmission wheel. The track is movable along the intersection of the vertical plane containing the axis of the transmission wheel and the conical surface of the transmission wheel.

3. The torsion bar spring load-bearing detection device according to claim 2, characterized in that, The track includes a support platform, a guide plate 1 and a transmission bar 2 disposed on the support platform, and a transmission bar 1 disposed on the guide plate 1. The transmission bar 1 or the transmission bar 2 is in transmission contact with the transmission wheel. The guide plate 1 is inclined and the transmission bar 1 is movably disposed on the guide plate 1. In this case, the transmission ratio between the transmission bar on the two clamping units and the corresponding transmission wheel is equal.

4. The torsion bar spring load-bearing detection device according to claim 3, characterized in that, The track also includes a guide plate 2 corresponding to the guide plate 1 and a transmission bar 3 corresponding to the transmission bar 1, wherein the transmission bar 3 is movably disposed on the guide plate 2; Wherein, the two values ​​of the transmission ratio between the two transmission bars one and the corresponding transmission wheel are reciprocals of the two values ​​of the transmission ratio between the two transmission bars two and the corresponding transmission wheel.

5. The torsion bar spring load-bearing detection device according to claim 4, characterized in that, Horizontal ridges are provided on one side of the back of guide plate one and one side of the back of guide plate two. Both guide plate one and guide plate two are provided with horizontal toothed plates that cooperate with the horizontal ridges. The horizontal toothed plates are fastened to the transmission bar one or the transmission bar three by bolts.

6. The torsion bar spring load-bearing detection device according to claim 1, characterized in that, A fixed sleeve is coaxially arranged on the transmission wheel. The transmission wheel is rotatably arranged on the moving platform through the fixed sleeve. A detection sleeve is rotatably arranged inside the fixed sleeve, and the fixed sleeve and the detection sleeve are connected by a pressure gauge. A clamping structure for holding the end of the torsion bar spring is provided inside the detection sleeve.

7. The torsion bar spring load-bearing detection device according to claim 6, characterized in that, The clamping structure includes a hydraulic cylinder disposed at the end of the detection sleeve and a movable disc that moves within the detection sleeve, wherein the output end of the hydraulic cylinder is connected to the movable disc; Several inclined platforms are provided in the circumferential direction of the inner wall of the detection sleeve. A right-angle clamp is slidably arranged on the inclined platform. One end of the right-angle clamp is rotatably connected to the movable disk, and the other end of the right-angle clamp is used to compress the torsion bar spring.

8. The torsion bar spring load-bearing detection device according to claim 7, characterized in that, A guide groove is provided on the inclined platform. The guide groove consists of an inclined groove and a straight groove. The straight groove is arranged along the radial direction of the detection sleeve. A sliding column is slidably arranged in the guide groove and is connected to the right-angle clamp.

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