Drive shaft straightening device and method of use thereof

Abstract

The present invention relates to the technical field of straightening devices. The application discloses a drive shaft straightening device and a method for using the same, including a straightening frame and a hydraulic cylinder. An upper pressure plate is fixed to the output end of the hydraulic cylinder. A loading conveyor is provided on one side of the straightening frame, and a unloading conveyor is provided inside the straightening frame on the side of the loading conveyor. A collecting box is provided on the side of the unloading conveyor away from the loading conveyor. The present invention uses a guided sliding structure, so that the loading conveyor and the unloading conveyor can drive the drive shaft to move. The guide plate can transfer the drive shaft to be straightened on the loading conveyor to the lower support plate. After straightening by the upper pressure plate, it is moved to the unloading conveyor by the lifting mechanism, and then transferred to the collecting box by the unloading conveyor for unloading. This solves the problem that the existing drive shaft straightening device is inconvenient in loading and unloading the drive shaft during use, greatly improves the practicality of the straightening device, and reduces the cost of use.

Description

Technical Field

[0001] The present invention relates to the technical field of straightening devices, in particular to a transmission shaft straightening device and a use method thereof. Background Art

[0002] The drive shaft is a high-speed, low-support rotating body. It is an important component for transmitting power in the automobile transmission system. Its function is to transmit the power of the engine to the wheels together with the gearbox and drive axle, so that the car generates driving force. It is mainly used in tank trucks, refueling trucks, sprinkler trucks, sewage suction trucks, fecal suction trucks, fire trucks, high-pressure cleaning trucks, road tow trucks, aerial work trucks, garbage trucks and other models. Generally, the drive shaft must undergo a dynamic balancing test before leaving the factory and be adjusted on a balancing machine. Most of them are straightened.

[0003] Currently, the commonly used straightening method is to press through a straightening machine. During straightening, the drive shaft needs to be clamped and placed inside the movable support plate, and then pressed to straighten it. After straightening, the material is unloaded. Most traditional straightening devices do not have a loading and unloading structure, resulting in the need for mechanical arms or manual operation during loading and unloading, which is costly and less practical. Summary of the Invention

[0004] In order to solve the problem that the drive shaft straightening device in the prior art is inconvenient in loading and unloading the drive shaft during use, the present invention provides a drive shaft straightening device and a method of using the same to solve the above problem.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drive shaft straightening device and a method for using the same, comprising a straightening frame and a hydraulic cylinder, an upper pressure plate being fixed to the output end of the hydraulic cylinder, a loading conveyor being provided on one side of the straightening frame, and a unloading conveyor being provided inside the straightening frame on the side of the loading conveyor, a collecting box being provided on the side of the unloading conveyor away from the loading conveyor, and the collecting box being detachably fixed on the straightening frame; an upper bracket being provided above between the loading conveyor and the unloading conveyor, and both ends of the upper bracket being fixed to the top of the straightening frame, a hydraulic cylinder being connected to the middle of the top of the upper bracket through a sliding mechanism, and the straightening frame below the hydraulic cylinder Lower supporting plates are symmetrically arranged on the inner side of the straightening frame, and guide plates are arranged between the two lower supporting plates and the loading conveyor belt and the unloading conveyor belt, and the front and rear ends of the guide plates are fixed on the inner wall of the straightening frame, and a clamping cylinder is arranged on the straightening frame above the guide plate near the unloading conveyor belt side, and a connecting rod is fixed to the output end of the clamping cylinder, and an inner clamping rod is fixed to the end of the connecting rod away from the clamping cylinder, and the inner clamping rod and the connecting rod are both slidably connected to the side wall of the straightening frame, and a lifting mechanism is arranged on the straightening frame on the side of the connecting rod, and a fixing screw is fixed on the side of each lower supporting plate close to the straightening frame, and a nut is threadedly sleeved on the end of the fixing screw extending to the outside of the straightening frame.

[0006] Furthermore, the front and rear walls of the straightening frame are provided with a slide groove for cooperating with a fixed screw, the length of the two lower support plates and the fixed screw is greater than the length of the slide groove, the upper pressure plate and the lower support plate are both arranged to be arc-shaped to cooperate with the transmission shaft, and a support plate is fixed on the inner wall of the straightening frame near the bottom end of the material collection box side of the unloading conveyor belt.

[0007] Furthermore, the upper bracket is configured to be an inverted "U" shape, and the side of the guide plate close to the loading conveyor belt and the unloading conveyor belt is configured to be an arc shape that matches them, and the two guide plates are placed in a "V" shape.

[0008] Furthermore, the hydraulic cylinder is fixedly mounted on the support frame, the upper part of the support frame is slidably hung on the slide rail, the inside of the slide rail is rotatably connected to a screw rod through a bearing, and one end of the screw rod extending to the outside of the slide rail is fixed on the drive motor, and the slide rail is fixed on the top of the upper bracket.

[0009] Furthermore, the lifting mechanism includes a rotating push plate, a rotating shaft and a servo motor, a guide slot cooperating with the inner clamping rod is opened inside the straightening frame, a rotating push plate is slidably sleeved on the two connecting rods, and a rotating shaft is fixed on the side of the rotating push plate away from the connecting rod toward the straightening frame, the rotating shafts are rotatably connected to the support plate through bearings, and the support plates are fixed to the bottom end of the straightening frame, one end of the rotating shaft extending to the outside of the support plate is fixed to the output end of the servo motor, the servo motor is fixedly mounted on the support plate, a movable slot cooperating with the connecting rod is opened inside the rotating push plate, and a connecting plate is fixed on the bottom surface of the two rotating push plates near the support plate end, and the two connecting plates are fixedly connected by a fixing rod.

[0010] Furthermore, the guide groove is located in an arc with the center of the rotating shaft as the center and the length of the rotating push plate as the radius. The guide groove is arranged to be inclined to cooperate with the guide plate close to the unloading conveyor belt side. The connecting rods are all arranged to be horizontally placed in a "T" shape. The height of the thick section of the connecting rod is greater than the height of the guide groove and the movable slot. The width of the inner clamping rod is equal to the width of the straightening frame.

[0011] Furthermore, both ends of the movable slot are configured to be arc-shaped to cooperate with the connecting rod, and the distance between the two ends of the movable slot is greater than the distance difference between the two ends of the guide slot and the rotating shaft.

[0012] Furthermore, a loading box is fixed on the top of the loading conveyor belt away from the unloading conveyor belt end, and a material guide plate is fixed inside the loading box, and a distribution roller is rotatably connected to the inside of the loading box on the side of the bottom of the material guide plate through a bearing, and a plurality of partition plates are fixed on the outer surface of the distribution roller at equal intervals, and one end of the distribution roller extending to the outside of the loading box is fixed on the output end of the loading motor, and the material guide plate is arranged to be inclined toward the unloading conveyor belt, and the width between the two partition plates is greater than the width of the transmission shaft, and the width between the two partition plates is less than the sum of the widths of the two transmission shafts.

[0013] Furthermore, a method for using the transmission shaft straightening device is provided, and the method for using the transmission shaft straightening device comprises the following steps:

[0014] S1. When straightening, place the drive shaft to be straightened inside the loading box and slide it between the two partition plates under the guidance of the guide plate. When loading, turn on the loading motor, so that the loading motor drives the distribution roller to rotate, and the drive shaft can be moved to the surface of the loading conveyor belt through the partition plate;

[0015] S2. After the straightening drive shaft falls perpendicularly to the straightening frame on the surface of the loading conveyor, the loading conveyor is turned on, so that the loading conveyor drives the drive shaft to move. When the loading conveyor drives the drive shaft to the position of the guide plate, it slides to the inside of the lower support plate under the guidance of the guide plate. At this time, the clamping cylinder operates to drive the inner clamping rod to move, so that the inner clamping rod moves to abut against both ends of the drive shaft and clamps the drive shaft;

[0016] S3. After the drive shaft is clamped and fixed inside the lower support plate, the drive motor is turned on to drive the hydraulic cylinder to move. When the hydraulic cylinder moves, it drives the upper pressure plate to move. When the upper pressure plate moves to the position to be straightened, the hydraulic cylinder runs, driving the upper pressure plate to move downward, so that the upper pressure plate moves downward to press the drive shaft for straightening;

[0017] S4. After the straightening is completed, the servo motor runs, and the rotating push plate is driven to rotate through the rotating shaft. When the rotating push plate rotates, the rotating push plate on the other side is driven to rotate at the same time through the connecting plate and the fixed rod. When the two rotating push plates rotate, the inner clamping rod is pushed to slide inside the guide groove through the connecting rod. At this time, the transmission shaft clamped by the inner clamping rods on both sides is pushed onto the unloading conveyor belt.

[0018] S5. After the drive shaft is moved to the surface of the unloading conveyor, the clamping cylinder operates again, driving the inner clamping rod to move and retract, so that the clamping fixation of the drive shaft by the inner clamping rod can be released. At this time, the drive shaft is driven by the unloading conveyor and moves to the collection box, so that the straightened drive shaft can be collected.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, the loading conveyor belt and the unloading conveyor belt can drive the drive shaft to move through the guided sliding structure. The guide plate can transfer the drive shaft to be straightened on the loading conveyor belt to the lower support plate. After straightening by the upper pressure plate, it is moved to the unloading conveyor belt through the lifting mechanism, and then transferred to the collecting box through the unloading conveyor belt for unloading. This solves the problem that the existing drive shaft straightening device is inconvenient in loading and unloading the drive shaft during use, greatly improves the practicality of the straightening device, and reduces the cost of use.

[0021] 2. In the present invention, through the movable design of the hydraulic cylinder, the position of the upper pressure plate can be adjusted according to the straightening needs, thereby adjusting the position of the pressing point during straightening. At the same time, with the replaceable design of the lower support plate, the size of the lower support plate can be adjusted according to the diameters of the two ends of the drive shaft during straightening, thereby greatly improving the applicability of the straightening device.

[0022] 3. In the present invention, through the linkage design of the connecting plate and the fixed rod, when rising, the push plate is rotated to drive the clamping cylinders on both sides to move upward. When the clamping cylinders move upward, they can drive the transmission shafts they clamp to move. With the support of the guide plate, the structure is simple and the material is easy to unload. At the same time, it also reduces the wear on the transmission shaft during the straightening process, further improving the practicality of the straightening device.

[0023] 4. In the present invention, by cooperating with the distribution roller and the partition plate, the drive shaft can be loaded individually during loading, and the loading speed can be controlled by controlling the rotation speed of the loading motor, thereby ensuring that the straightening device can load continuously, improving the simplicity of the straightening device when used, and making the straightening device more labor-saving and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is a schematic diagram of the front view of the three-dimensional structure of a straightening device according to an embodiment of the present application;

[0026] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the straightening device in the embodiment shown;

[0027] Figure 3 yes Figure 1 A schematic bottom-up perspective structural diagram of the straightening device in the illustrated embodiment;

[0028] Figure 4 yes Figure 1 A schematic diagram of a partial three-dimensional structure of the straightening device in the embodiment shown;

[0029] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of the lifting mechanism in the embodiment shown;

[0030] Figure 6 yes Figure 1 A schematic structural diagram of the lifting mechanism in another perspective view from the front in the embodiment shown;

[0031] Figure 7 yes Figure 1 The upper distribution roller in the embodiment shown is a schematic diagram of the front view three-dimensional structure.

[0032] The meanings of the reference numerals in the figure are as follows: 1. Straightening frame; 2. Loading conveyor belt; 3. Unloading conveyor belt; 4. Collecting box; 5. Upper bracket; 6. Hydraulic cylinder; 7. Upper pressure plate; 8. Lower support plate; 9. Guide plate; 10. Support plate; 11. Fixed screw; 12. Clamping cylinder; 13. Inner clamping rod; 14. Guide slide; 15. Connecting rod; 16. Rotating push plate; 17. Movable slot; 18. Support plate; 19. Rotating shaft; 20. Servo motor; 21. Connecting plate; 22. Fixed rod; 23. Loading box; 24. Guide plate; 25. Loading motor; 26. Distribution roller; 27. Partition plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, features, and advantages of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A drive shaft straightening device and a method for using the same include a straightening frame 1 and a hydraulic cylinder 6. An upper pressure plate 7 is fixed to the output end of the hydraulic cylinder 6. A loading conveyor belt 2 is provided on one side of the straightening frame 1. A discharge conveyor belt 3 is provided inside the straightening frame 1 on the side of the loading conveyor belt 2. A material collecting box 4 is provided on the side of the discharge conveyor belt 3 away from the loading conveyor belt 2. The material collecting box 4 is detachably fixed to the straightening frame 1.

[0035] An upper bracket 5 is provided above the feeding conveyor belt 2 and the unloading conveyor belt 3, and both ends of the upper bracket 5 are fixed to the top of the straightening frame 1. The middle part of the top of the upper bracket 5 is connected to the hydraulic cylinder 6 through a sliding mechanism, and lower supporting plates 8 are symmetrically provided on the inner side of the straightening frame 1 below the hydraulic cylinder 6. Guide plates 9 are provided between the two lower supporting plates 8 and the feeding conveyor belt 2 and the unloading conveyor belt 3, and the front and rear ends of the guide plates 9 are fixed to the inner wall of the straightening frame 1. The upper part of the guide plate 9 near the unloading conveyor belt 3 is provided with a guide plate 9. A clamping cylinder 12 is provided on the straightening frame 1, and a connecting rod 15 is fixed to the output end of the clamping cylinder 12. An inner clamping rod 13 is fixed to the end of the connecting rod 15 away from the clamping cylinder 12. The inner clamping rod 13 and the connecting rod 15 are both slidably connected to the side wall of the straightening frame 1. A lifting mechanism is provided on the straightening frame 1 on the side of the connecting rod 15. A fixing screw 11 is fixed to the side of each lower support plate 8 close to the straightening frame 1, and a nut is threadedly sleeved on one end of the fixing screw 11 extending to the outside of the straightening frame 1;

[0036] The sliding mechanism includes a slide rail, a hydraulic cylinder 6 fixedly mounted on a support frame, the upper part of the support frame is slidably hung on the slide rail, a screw rod is rotatably connected to the inside of the slide rail through a bearing, and one end of the screw rod extends to the outside of the slide rail and is fixed to the drive motor, and the slide rail is fixed to the top of the upper bracket 5.

[0037] The upper and lower support plates 8 are arranged on the inner wall of the straightening frame 1 near the bottom end of the collecting box 4, which is convenient for the fixing screw 11 to slide inside the straightening frame 1. The detachable design of the lower support plate 8 is convenient for adjusting the position of the lower support plate 8 according to the transmission shaft, and also convenient for replacing the lower support plate 8. The upper bracket 5 is arranged in an inverted "U" shape, which is convenient for the upper bracket 5 to support the hydraulic cylinder 6. The guide plate 9 is arranged in an arc shape to match it near the side of the feeding conveyor 2 and the unloading conveyor 3. The two guide plates 9 are placed in a "V" shape, which is convenient for the guide plate 9 to guide the transmission shaft. When straightening, the upper pressure plate 7 can be driven to move horizontally, and the pressing point during straightening can be adjusted as needed to preserve the straightening effect during straightening.

[0038] As an optimization solution, Figure 7 As shown, a loading box 23 is fixed to the top of the loading conveyor belt 2 away from the unloading conveyor belt 3, and a guide plate 24 is fixed inside the loading box 23. A distribution roller 26 is rotatably connected to the inside of the loading box 23 on the side of the bottom of the guide plate 24 through a bearing, and a number of partition plates 27 are fixed at equal intervals on the outer surface of the distribution roller 26. One end of the distribution roller 26 extends to the outside of the loading box 23 and is fixed to the output end of the loading motor 25.

[0039] Specifically, the guide plate 24 is set to be inclined toward the unloading conveyor belt 3, the width between the two partition plates 27 is greater than the width of the drive shaft, and the width between the two partition plates 27 is less than the sum of the widths of the two drive shafts. A unloading port is opened at the bottom of the loading box 23 to cooperate with the drive roller.

[0040] As a further optimization solution, Figure 5 and Figure 6 As shown, the lifting mechanism includes a rotating push plate 16, a rotating shaft 19 and a servo motor 20. A guide groove 14 is provided inside the straightening frame 1 to cooperate with the inner clamping rod 13. A rotating push plate 16 is slidably sleeved on the two connecting rods 15, and a rotating shaft 19 is fixed on the side of the straightening frame 1 at one end of the rotating push plate 16 away from the connecting rod 15. The rotating shaft 19 is rotatably connected to the support plate 18 through a bearing, and the support plate 18 is fixed to the bottom end of the straightening frame 1. One side of the rotating shaft 19 extends to the outside of the support plate 18 and is fixed to the output end of the servo motor 20. The servo motor 20 is fixedly mounted on the support plate 18. A movable slot 17 is provided inside the rotating push plate 16 to cooperate with the connecting rod 15. A connecting plate 21 is fixed to the bottom surface of the two rotating push plates 16 near the end of the support plate 18. The two connecting plates 21 are fixedly connected by a fixing rod 22.

[0041] Specifically, the guide slot 14 is located in an arc with the center of the rotating shaft 19 as the center and the length of the rotating push plate 16 as the radius. The guide slot 14 is set to an inclined shape to cooperate with the guide plate 9 near the side of the unloading conveyor belt 3 to ensure that when the rotating push plate 16 rotates, it can drive the inner clamping rod 13 to move inside the guide slot 14. The connecting rods 15 are all set to a horizontally placed "T" shape. The height of the thick section of the connecting rod 15 is greater than the height of the guide slot 14 and the movable slot 17. The width of the inner clamping rod 13 is equal to the width of the straightening frame 1, which prevents the connecting rod 15 from separating from the rotating push plate 16, and at the same time facilitates the rotating push plate 16 to drive the connecting rod 15 to move. Both ends of the movable slot 17 are set to an arc that cooperates with the connecting rod 15, and the distance between the two ends of the movable slot 17 is greater than the distance difference between the two ends of the guide slot 14 and the rotating shaft 19.

[0042] Working principle: During straightening, the drive shaft to be straightened is placed inside the loading box 23, and is guided by the guide plate 24 to slide between the two partition plates 27. During loading, the loading motor 25 is turned on, so that the loading motor 25 drives the distribution roller 26 to rotate, and the transmission shaft can be driven through the partition plate 27 to move on the surface of the loading conveyor belt 2 that is lowered. After the straightened drive shaft falls perpendicular to the straightening frame 1 on the surface of the loading conveyor belt 2, the loading conveyor belt 2 is turned on, so that the loading conveyor belt 2 runs and drives the drive shaft to move. When the loading conveyor belt 2 drives the drive shaft to the position of the guide plate 9, it slides to the inside of the lower support plate 8 under the guidance of the guide plate 9. At this time, the clamping cylinder 12 runs, driving the inner clamping rod 13 to move, so that the inner clamping rod 13 moves to abut against both ends of the drive shaft and clamps the drive shaft. After the drive shaft is clamped and fixed inside the lower support plate 8, the drive motor is turned on, so that it drives the hydraulic cylinder 6 to move. When the hydraulic cylinder 6 moves, the belt When the upper pressure plate 7 moves and the upper pressure plate 7 moves to the position to be straightened, the hydraulic cylinder 6 operates, driving the upper pressure plate 7 to move down, so that the upper pressure plate 7 moves down and presses the transmission shaft for straightening. After the straightening is completed, the servo motor 20 operates and drives the rotating push plate 16 to rotate through the rotating shaft 19. When the rotating push plate 16 rotates, the rotating push plate 16 on the other side is driven to rotate at the same time through the connecting plate 21 and the fixed rod 22. When the two rotating push plates 16 rotate, the inner clamping rod 13 is pushed to slide inside the guide slide 14 through the connecting rod 15. At this time, the transmission shaft clamped by the inner clamping rods 13 on both sides is pushed onto the unloading conveyor 3. After the transmission shaft is moved to the surface of the unloading conveyor 3, the clamping cylinder 12 operates again, driving the inner clamping rod 13 to move and retract, so that the clamping fixation of the transmission shaft by the inner clamping rod 13 can be released. At this time, the transmission shaft moves to the collection box 4 driven by the unloading conveyor 3, and the straightened transmission shaft can be collected.

[0043] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and scope of the appended claims are intended to be included herein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A transmission shaft straightening device, comprising a straightening frame (1) and a hydraulic cylinder (6), wherein an upper pressure plate (7) is fixed to the output end of the hydraulic cylinder (6), characterized in that: A loading conveyor belt (2) is provided on one side of the straightening frame (1), and a unloading conveyor belt (3) is provided inside the straightening frame (1) on the side of the loading conveyor belt (2), and a collecting box (4) is provided on the side of the unloading conveyor belt (3) away from the loading conveyor belt (2), and the collecting box (4) is detachably fixed on the straightening frame (1); An upper bracket (5) is provided above the feeding conveyor belt (2) and the unloading conveyor belt (3), and both ends of the upper bracket (5) are fixed to the top of the straightening frame (1), the middle of the top of the upper bracket (5) is connected to the hydraulic cylinder (6) through a sliding mechanism, and a lower support plate (8) is symmetrically provided on the inner side of the straightening frame (1) below the hydraulic cylinder (6), and a guide plate (9) is provided between the two lower support plates (8) and the feeding conveyor belt (2) and the unloading conveyor belt (3), and the front and rear ends of the guide plates (9) are fixed on the inner wall of the straightening frame (1), and the upper part of the guide plate (9) near the side of the unloading conveyor belt (3) is provided. The straightening frame (1) is provided with a clamping cylinder (12), and a connecting rod (15) is fixed to the output end of the clamping cylinder (12), an inner clamping rod (13) is fixed to the end of the connecting rod (15) away from the clamping cylinder (12), and the inner clamping rod (13) and the connecting rod (15) are both slidably connected to the side wall of the straightening frame (1), and a lifting mechanism is provided on the straightening frame (1) on the side of the connecting rod (15), and a fixing screw (11) is fixed to the side of each lower support plate (8) close to the straightening frame (1), and a nut is threadedly sleeved on one end of the fixing screw (11) extending to the outside of the straightening frame (1); The lifting mechanism includes a rotating push plate (16), a rotating shaft (19) and a servo motor (20). A guide slot (14) cooperating with the inner clamping rod (13) is provided inside the straightening frame (1). The two connecting rods (15) are both slidably sleeved with a rotating push plate (16), and a rotating shaft (19) is fixed on the side of the rotating push plate (16) away from the connecting rod (15) toward the straightening frame (1). The rotating shaft (19) is rotatably connected to the support plate (18) through a bearing, and the support plate (18) is fixed. The rotating shaft (19) is fixed at the bottom end of the straightening frame (1), and one end of the rotating shaft (19) extending to the outside of the support plate (18) is fixed to the output end of the servo motor (20). The servo motor (20) is fixedly mounted on the support plate (18). A movable slot (17) cooperating with the connecting rod (15) is provided inside the rotating push plate (16). A connecting plate (21) is fixed to the bottom surface of the two rotating push plates (16) near the end of the support plate (18). The two connecting plates (21) are fixedly connected by a fixing rod (22).

2. The transmission shaft straightening device according to claim 1, characterized in that: The upper pressing plate (7) and the lower supporting plate (8) are both configured to be arc-shaped to match the transmission shaft, and a supporting plate (10) is fixed on the inner wall of the straightening frame (1) at the bottom end of the unloading conveyor belt (3) close to the collecting box (4).

3. The transmission shaft straightening device according to claim 1, characterized in that: The upper bracket (5) is configured to be an inverted "U" shape, and the guide plates (9) are configured to be arc-shaped to match the loading conveyor belt (2) and the unloading conveyor belt (3) on one side thereof, and the two guide plates (9) are placed in a "V" shape.

4. The transmission shaft straightening device according to claim 1, characterized in that: The sliding mechanism includes a slide rail, the hydraulic cylinder (6) is fixedly mounted on a support frame, the upper portion of the support frame is slidably mounted on the slide rail, a screw rod is rotatably connected to the inside of the slide rail via a bearing, and one end of the screw rod extending to the outside of the slide rail is fixed to a drive motor, and the slide rail is fixed to the top of the upper bracket (5).

5. The transmission shaft straightening device according to claim 1, characterized in that: The guide chute (14) is located in an arc with the center of the rotating shaft (19) as the center and the length of the rotating push plate (16) as the radius. The guide chute (14) is set to be inclined to cooperate with the guide plate (9) on the side close to the unloading conveyor belt (3). The connecting rods (15) are all set to be horizontally placed in a "T" shape. The height of the thick section of the connecting rod (15) is greater than the height of the guide chute (14) and the movable slot (17).

6. The transmission shaft straightening device according to claim 1, characterized in that: Both ends of the movable slot (17) are configured as arcs that match the connecting rod (15), and the distance between the two ends of the movable slot (17) is greater than the distance difference between the two ends of the guide slot (14) and the rotating shaft (19).

7. The transmission shaft straightening device according to claim 1, characterized in that: A loading box (23) is fixed on the top of the loading conveyor belt (2) away from the unloading conveyor belt (3), and a guide plate (24) is fixed inside the loading box (23). A distribution roller (26) is rotatably connected to the loading box (23) on the side of the bottom of the guide plate (24) through a bearing, and a plurality of partition plates (27) are fixed on the outer surface of the distribution roller (26) at equal intervals. One end of the distribution roller (26) extending to the outside of the loading box (23) is fixed to the output end of the loading motor (25). The guide plate (24) is arranged to be inclined toward the unloading conveyor belt (3). The width between the two partition plates (27) is greater than the width of the transmission shaft, and the width between the two partition plates (27) is less than the sum of the widths of the two transmission shafts.

8. The method for using the transmission shaft straightening device according to claim 7, characterized in that: The following steps are involved: S1. When straightening, the drive shaft to be straightened is placed inside the feeding box (23), and is slid between the two partition plates (27) under the guidance of the guide plate (24). When loading, the feeding motor (25) is turned on, so that the feeding motor (25) drives the distribution roller (26) to rotate, and the drive shaft can be moved toward the surface of the feeding conveyor belt (2) through the partition plate (27); S2. After the straightening transmission shaft is perpendicular to the straightening frame (1) and falls on the surface of the feeding conveyor (2), the feeding conveyor (2) is opened, so that the feeding conveyor (2) drives the transmission shaft to move. When the feeding conveyor (2) drives the transmission shaft to move to the position of the guide plate (9), it slides to the inside of the lower support plate (8) under the guidance of the guide plate (9). At this time, the clamping cylinder (12) operates to drive the inner clamping rod (13) to move, so that the inner clamping rod (13) moves to abut against both ends of the transmission shaft and clamps the transmission shaft; S3. After the transmission shaft is clamped and fixed inside the lower support plate (8), the driving motor is turned on to drive the hydraulic cylinder (6) to move. When the hydraulic cylinder (6) moves, it drives the upper pressing plate (7) to move. When the upper pressing plate (7) moves to the position to be straightened, the hydraulic cylinder (6) operates to drive the upper pressing plate (7) to move downward, so that the upper pressing plate (7) moves downward to press the transmission shaft for straightening; S4. After the straightening is completed, the servo motor (20) runs, and drives the rotating push plate (16) to rotate through the rotating shaft (19). When the rotating push plate (16) rotates, the rotating push plate (16) on the other side is driven to rotate at the same time through the connecting plate (21) and the fixed rod (22). When the two rotating push plates (16) rotate, the inner clamping rod (13) is pushed to slide inside the guide groove (14) through the connecting rod (15). At this time, the transmission shaft clamped by the inner clamping rods (13) on both sides is pushed onto the unloading conveyor belt (3); S5. After the transmission shaft is moved to the surface of the unloading conveyor belt (3), the clamping cylinder (12) is operated again, driving the inner clamping rod (13) to move and retract, so that the clamping fixation of the inner clamping rod (13) on the transmission shaft is released. At this time, the transmission shaft is driven by the unloading conveyor belt (3) and moves to the collection box (4), so that the straightened transmission shaft can be collected.

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