A shell reducing lifting appliance turnover device

Abstract

The application discloses a shell-reducing lifting appliance turnover device, relates to the technical field of shell-reducing lifting appliances, and comprises right and left plates which are arranged in a cross mode, a rotating mechanism is arranged between the right and left plates, a reset mechanism is arranged between the right and left plates, a shackle is fixedly connected to the upper end of each of the right and left plates, a rectangular block is fixedly connected to the lower end of each of the right and left plates, two symmetrical clamping jaws are arranged on the opposite side walls of the two rectangular blocks, first arc-shaped grooves are formed in the opposite side walls of the two clamping jaws, and a clamping groove is formed in the top of each clamping jaw. The shell-reducing lifting appliance turnover device is convenient for hoisting and overturning the shell-reducing, can accurately and quickly place the shell-reducing into a tool, can automatically separate from the shell-reducing after hoisting is completed, is more convenient and fast to use, reduces the labor intensity of an operator, can improve the processing efficiency, and is safer and more reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shell reducing hangers, in particular to a shell reducing hanger turnover device. BACKGROUND

[0002] After the outer circle of the shell used for the automobile rear axle main reduction is processed, due to the limitation of the tooling and processing position, the shell needs to be hoisted to the work station tooling first, and then the shell is turned over by the operator before being transported to the machine tool tooling for processing the stop and tile cover surface. However, the following shortcomings exist:

[0003] 1. The shell is heavy, and the labor intensity is extremely great;

[0004] 2. During the process of placing the shell into the tooling, the probability of hitting the fingers is relatively high, and there is a safety hazard, and

[0005] Due to the heavy weight of the shell, long-time transportation of the shell is prone to the risk of falling of the shell during the transportation process;

[0006] 3. The manual transportation of the shell cannot accurately and quickly place the shell into the tooling, which affects the production efficiency;

[0007] Therefore, the existing manual transportation and turnover of the shell has a large labor intensity, which not only leads to low production efficiency, but also is not safe and reliable.

[0008] Therefore, we propose a shell reducing hanger turnover device. SUMMARY

[0009] The purpose of the present application is to provide a shell reducing hanger turnover device to solve the problems raised in the background art.

[0010] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a shell reducing hanger turnover device, comprising right and left plates arranged in cross, a rotating mechanism is arranged between the right and left plates, and a reset mechanism is arranged between the right and left plates, a shackle is fixedly connected to the upper end of each of the right and left plates, and a rectangular block is fixedly connected to the lower end of each of the right and left plates, two symmetric clamping jaws are arranged on the opposite side walls of the two rectangular blocks, first arc-shaped grooves are formed in the opposite side walls of the two clamping jaws, a clamping groove is formed in the top of each clamping jaw, a counterbore is formed in the side wall of each first arc-shaped groove, a first half-threaded bolt is inserted into the counterbore, a first nut is threadedly connected to the other end of the first half-threaded bolt penetrating through the side wall of the rectangular block, a flat washer is sleeved on the side wall of the first half-threaded bolt, and the flat washer is located between the clamping jaw and the rectangular block, a limiting mechanism for limiting the rotation of the first half-threaded bolt is arranged on the side wall of the rectangular block, a speed limiting mechanism for limiting the rotation speed of the first half-threaded bolt is arranged on the side wall of the rectangular block, and a detection mechanism for detecting the loosening of the first nut is arranged on the side wall of each of the right and left plates.

[0011] Preferably, the rotating mechanism comprises a notch formed in the side wall of the right plate, and a rectangular frame is fixedly inserted in the notch, the left plate is inserted in the rectangular frame, a second half-threaded bolt is arranged through the side wall of the left plate and the rectangular frame, and a second nut is threadedly connected to the side wall of the second half-threaded bolt.

[0012] Preferably, the reset mechanism comprises a third half-threaded bolt and a fourth half-threaded bolt threadedly connected to the side wall of the left plate, and a fifth half-threaded bolt and a sixth half-threaded bolt are threadedly connected to the side wall of the right plate, a first tension spring is arranged between the third half-threaded bolt and the sixth half-threaded bolt, and a second tension spring is arranged between the fourth half-threaded bolt and the fifth half-threaded bolt.

[0013] Preferably, the limiting mechanism comprises a first semispherical groove and a second semispherical groove formed in the side wall of the first half-threaded bolt, and the side wall of the rectangular block is connected with a bolt through the reset assembly, and the bolt is inserted in the side wall of the rectangular block.

[0014] Preferably, the speed limiting mechanism comprises a friction plate inserted in the side wall of the rectangular block, and a second arc-shaped groove is formed in the side wall of the friction plate, the side wall of the rectangular block is connected with a first moving block through the moving mechanism, and the side wall of the first moving block is connected with the side wall of the friction plate through the telescopic mechanism.

[0015] Preferably, the detection mechanism comprises a moving rod inserted in the side wall of the right plate and the left plate, and a ball is arranged at one end of the moving rod close to the flat washer, the other end of the moving rod is fixedly connected with a disc, and a second spring is sleeved on the side wall of the moving rod, and a detection assembly is arranged on the top of the disc, and the detection assembly is used for detecting the movement of the disc.

[0016] Preferably, the detection assembly comprises a mounting block fixedly connected to the top of the disc, and a distance sensor is fixedly connected to the side wall of the mounting block.

[0017] Preferably, the reset assembly comprises two symmetrically arranged first T-shaped guide rods fixedly connected to the side wall of the rectangular block, and a second moving block is sleeved on the side wall of the first T-shaped guide rod, one end of the bolt is fixed to the side wall of the second moving block, and a third spring is sleeved on the side wall of each first T-shaped guide rod.

[0018] Preferably, the moving mechanism comprises an L-shaped plate fixedly connected to the side wall of the rectangular block, and two symmetrically arranged guide rods are fixedly connected between the L-shaped plate and the rectangular block, a sliding block is sleeved on the side wall of the guide rod, and the sliding block is fixed to the side wall of the first moving block, a threaded rod is rotatably connected between the L-shaped plate and the rectangular block, one end of the threaded rod is fixedly connected with a hand wheel, and the sliding block is threadedly connected to the side wall of the threaded rod.

[0019] Preferably, the telescopic mechanism comprises a connecting block fixedly connected to the side wall of the friction plate, and the side wall of the connecting block is fixedly connected with two symmetrically arranged second T-shaped guide rods, the first moving block is sleeved on the side wall of the second T-shaped guide rod, and the side wall of each second T-shaped guide rod is sleeved with a fourth spring, the top of the connecting block is fixedly connected with a scale plate, and the top of the scale plate is provided with scale marks, the top of the first moving block is fixedly connected with a support block, and the side wall of the support block is fixedly connected with a pointer.

[0020] Compared with the prior art, the present application has the following advantages:

[0021] The present application sets up a reset mechanism, when the shell needs to be lifted, the worker uses KBK to lower the lifting tool, under the action of the first and second tension springs, the right plate and the left plate rotate and expand along the second half threaded bolt, then one of the claws is clamped on the outer circle of the shell, the other claw is aligned with the outer circle of the shell, and the shell reinforcing rib is clamped into the clamping groove, then the KBK is used to move the lifting tool upwards, at this time, the right plate and the left plate can be driven to rotate and shrink along the second half threaded bolt, at the same time, the first and second tension springs are stretched, and the two claws are in contact with the outer circle of the shell, realizing clamping operation, then the shell is pushed to turn over, at the same time, the claw and the first half threaded bolt are driven to rotate, then the lifting tool is lowered by KBK, so that the shell is placed in the tooling for processing, which can accurately and quickly place the shell in the tooling, after the shell is placed down, the right plate and the left plate can rotate and expand under the action of the first and second tension springs, realizing automatic disengagement, so as to facilitate the disengagement of the lifting tool and the shell, which is more convenient and fast, reduces the labor intensity of the worker, improves the processing efficiency, and is more safe and reliable.

[0022] The present application sets up a speed limiting mechanism, when the shell is turned over, the claw and the first half threaded bolt are driven to rotate, at this time, under the action of the fourth spring, the friction plate can be in contact with the side wall of the first half threaded bolt, the rotation of the first half threaded bolt can be limited in speed, the turning over of the shell is more stable and reliable, and by rotating the handle, the rotation of the handle drives the rotation of the threaded rod, so as to drive the sliding block to move along the guide rod, and then drive the first moving block to move, when the friction plate is in contact with the side wall of the first half threaded bolt, when the first moving block continues to move, the distance between the first moving block and the connecting block gradually decreases, at the same time, the fourth spring is gradually compressed, at this time, by observing the scale mark indicated by the pointer, the compression amount of the fourth spring can be determined, and then the extrusion force of the friction plate on the first half threaded bolt can be adjusted and controlled, which has stronger applicability and better use effect.

[0023] The application can drive the claw and the first half threaded bolt to rotate synchronously when the reduced shell is turned over, the bolt can slide out of the first half spherical groove and slide on the side wall of the first half threaded bolt at this time, and the third spring is compressed, when the bolt is aligned with the second half spherical groove after the reduced shell is turned over, the bolt can be inserted into the second half spherical groove to be limited under the action of the third spring, so that the reduced shell can be limited to the first half threaded bolt after turning over, which is more stable and reliable, avoids random rotation of the reduced shell, is more stable and reliable, and can ensure that the turning angle is more accurate and the hoisting and turning effect is ensured.

[0024] The application can ensure the hoisting and turning effect and is more safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of the application;

[0026] Figure 2 It is a whole structure schematic view of the application from another perspective;

[0027] Figure 3 It is a partial sectional view schematic view of the rectangular block and the bolt in the application;

[0028] Figure 4 It is a structure schematic view of the limiting mechanism in the application;

[0029] Figure 5 It is a position schematic view of the speed limiting mechanism in the application;

[0030] Figure 6 It is Figure 1 the enlarged view of A in the application;

[0031] Figure 7 It is Figure 3 the enlarged view of B in the application;

[0032] Figure 8 It is Figure 5 the enlarged view of C in the application;

[0033] Figure 9 It is Figure 8 the enlarged view of D in the application.

[0034] In the figure: 1, right plate; 201, first semispherical groove; 202, second semispherical groove; 203, bolt; 301, friction plate; 302, first moving block; 303, second arc-shaped groove; 401, first T-shaped guide rod; 402, guide rod; 403, sliding block; 404, threaded rod; 405, rocking wheel; 501, connecting block; 502, second T-shaped guide rod; 503, fourth spring; 504, scale plate; 505, scale mark; 506, support block; 507, pointer; 601, first T-shaped guide rod; 602, third spring; 603, second moving block; 701, moving rod; 702, ball; 703, second spring; 704, disc; 801, mounting block; 802, distance sensor; 901, notch; 902, rectangular frame; 903, second half-threaded bolt; 904, second nut; 1001, third half-threaded bolt; 1002, fourth half-threaded bolt; 1003, fifth half-threaded bolt; 1004, sixth half-threaded bolt; 1005, first tension spring; 1006, second tension spring; 11, left plate; 12, shackle; 13, rectangular block; 14, claw; 15, first arc-shaped groove; 16, clamping groove; 17, counterbore; 18, first half-threaded bolt; 19, first nut; 20, flat washer. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] Please refer to Figures 1-9The utility model provides an overturning device of a shell reducing lifting appliance, which comprises right and left plates 1 and 11 arranged in a cross shape, a rotating mechanism arranged between the right and left plates 1 and 11, and a reset mechanism arranged between the right and left plates 1 and 11. The upper ends of the right and left plates 1 and 11 are fixedly connected with shackle 12, and the lower ends of the right and left plates 1 and 11 are fixedly connected with rectangular blocks 13. The opposite side walls of the two rectangular blocks 13 are provided with two symmetrical clamping jaws 14. The opposite side walls of the two clamping jaws 14 are provided with first arc-shaped grooves 15. The top of each clamping jaw 14 is provided with a clamping groove 16. The side wall of each first arc-shaped groove 15 is provided with a counterbore 17. A first half-threaded bolt 18 is inserted into the counterbore 17. The other end of the first half-threaded bolt 18 penetrates through the side wall of the rectangular block 13 and is threadedly connected with a first nut 19. A flat washer 20 is sleeved on the side wall of the first half-threaded bolt 18 and is located between the clamping jaw 14 and the rectangular block 13. The side wall of the rectangular block 13 is provided with a limiting mechanism for limiting the rotation of the first half-threaded bolt 18. The side wall of the rectangular block 13 is provided with a speed limiting mechanism for limiting the rotation speed of the first half-threaded bolt 18. The side walls of the right and left plates 1 and 11 are provided with detection mechanisms for detecting the loosening of the first nut 19. The shell reducing can be conveniently hoisted and overturned, can be accurately and quickly placed into a tool, can be automatically separated from the shell reducing after hoisting is completed, is more convenient and fast to use, reduces the labor intensity of operators, can improve the processing efficiency, and is safer and more reliable.

[0037] The rotating mechanism comprises a notch 901 formed in the side wall of the right plate 1, and a rectangular frame 902 fixedly inserted into the notch 901. The left plate 11 is inserted into the rectangular frame 902. The side walls of the left plate 11 and the rectangular frame 902 are provided with a second half-threaded bolt 903. The side wall of the second half-threaded bolt 903 is threadedly connected with a second nut 904, so that the right plate 1 and the left plate 11 can be expanded or contracted along the second half-threaded bolt 903.

[0038] The reset mechanism comprises a third half-threaded bolt 1001 and a fourth half-threaded bolt 1002 threadedly connected with the side wall of the left plate 11. The side wall of the right plate 1 is threadedly connected with a fifth half-threaded bolt 1003 and a sixth half-threaded bolt 1004. A first tension spring 1005 is arranged between the third half-threaded bolt 1001 and the sixth half-threaded bolt 1004. A second tension spring 1006 is arranged between the fourth half-threaded bolt 1002 and the fifth half-threaded bolt 1003. The lifting appliance is moved upward by a KBK. At this time, the right plate 1 and the left plate 11 can be contracted along the second half-threaded bolt 903. At the same time, the first tension spring 1005 and the second tension spring 1006 are stretched, so that the two clamping jaws 14 abut against the outer circle of the shell reducing, and clamping is realized. After the shell reducing is placed down, the right plate 1 and the left plate 11 can be expanded under the action of the first tension spring 1005 and the second tension spring 1006, so that automatic separation is realized.

[0039] The limiting mechanism comprises a first semispherical groove 201 and a second semispherical groove 202 formed in the sidewall of the first half-threaded bolt 18, and the sidewall of the rectangular block 13 is connected with a latch 203 through a reset assembly, and the latch 203 is inserted in the sidewall of the rectangular block 13. When the shell is turned over, the pawl 14 and the first half-threaded bolt 18 can be synchronously rotated. At this time, the latch 203 can slide out of the first semispherical groove 201 and slide on the sidewall of the first half-threaded bolt 18. After the shell is turned over, when the latch 203 is aligned with the second semispherical groove 202, the latch 203 can be inserted into the second semispherical groove 202 for limiting under the action of the reset assembly. Thus, the shell can be limited after being turned over, which is more stable and reliable, avoids random rotation of the shell, is more stable and reliable, and can ensure that the turning angle is more accurate and the hoisting and turning effect is ensured.

[0040] The speed limiting mechanism comprises a friction plate 301 inserted in the sidewall of the rectangular block 13, and the sidewall of the friction plate 301 is provided with a second arc-shaped groove 303. The sidewall of the rectangular block 13 is connected with a first moving block 302 through a moving mechanism, and the sidewall of the first moving block 302 is connected with the sidewall of the friction plate 301 through a telescopic mechanism. When the shell is turned over, the pawl 14 and the first half-threaded bolt 18 can be rotated. Under the action of the telescopic mechanism, the friction plate 301 can abut against the sidewall of the first half-threaded bolt 18, so as to limit the rotation of the first half-threaded bolt 18, and the turning of the shell is more stable and reliable.

[0041] The detection mechanism comprises a moving rod 701 inserted in the sidewall of the right plate 1 and the left plate 11, and one end of the moving rod 701 close to the flat washer 20 is provided with a ball 702. The other end of the moving rod 701 is fixedly connected with a disc 704, and the sidewall of the moving rod 701 is sleeved with a second spring 703. The top of the disc 704 is provided with a detection assembly, and the detection assembly is used for detecting the movement of the disc 704. When in use, under the action of the second spring 703, the ball 702 can always contact the end of the flat washer 20. When the first nut 19 is loose, the gap between the flat washer 20 and the rectangular block 13 will become larger. At this time, under the action of the second spring 703, the disc 704 moves towards the right plate 1 or the left plate 11, and is detected by the detection assembly.

[0042] The detection assembly comprises a mounting block 801 fixedly connected to the top of the disc 704, and the sidewall of the mounting block 801 is fixedly connected with a distance sensor 802. The distance sensor 802 detects the change of the distance, and an external alarm is used for alarming to remind the operator to maintain, so as to ensure the hoisting and turning effect and be more safe and reliable.

[0043] The reset assembly comprises two symmetrically arranged first T-shaped guide rods 601 fixedly connected to the side wall of the rectangular block 13, and the side wall of the first T-shaped guide rod 601 is sleeved with a second moving block 603, one end of the bolt 203 is fixed to the side wall of the second moving block 603, and the side wall of each first T-shaped guide rod 601 is sleeved with a third spring 602, which guides and resets the movement of the bolt 203.

[0044] The moving mechanism comprises an L-shaped plate 401 fixedly connected to the side wall of the rectangular block 13, and two symmetrically arranged guide rods 402 fixedly connected between the L-shaped plate 401 and the rectangular block 13, the side wall of the guide rod 402 is sleeved with a sliding block 403, and the side wall of the sliding block 403 is fixed to the first moving block 302, the L-shaped plate 401 and the rectangular block 13 are rotationally connected with a threaded rod 404, one end of the threaded rod 404 is fixedly connected with a rocking wheel 405, the sliding block 403 is threadedly connected with the side wall of the threaded rod 404, by rotating the rocking wheel 405, the rotation of the rocking wheel 405 drives the rotation of the threaded rod 404, thereby driving the sliding block 403 to move along the guide rod 402, and further driving the first moving block 302 to move.

[0045] The telescopic mechanism comprises a connecting block 501 fixedly connected to the side wall of the friction plate 301, and the side wall of the connecting block 501 is fixedly connected with two symmetrically arranged second T-shaped guide rods 502, the first moving block 302 is sleeved on the side wall of the second T-shaped guide rod 502, and the side wall of each second T-shaped guide rod 502 is sleeved with a fourth spring 503, the top of the connecting block 501 is fixedly connected with a scale plate 504, and the top of the scale plate 504 is provided with scale marks 505, the top of the first moving block 302 is fixedly connected with a supporting block 506, and the side wall of the supporting block 506 is fixedly connected with a pointer 507, when the friction plate 301 abuts against the side wall of the first half-threaded bolt 18, when the first moving block 302 continues to move, the distance between the first moving block 302 and the connecting block 501 gradually decreases, at the same time, the fourth spring 503 is gradually compressed, at this time, by observing the scale marks 505 indicated by the pointer 507, the compression amount of the fourth spring 503 can be determined, thereby adjusting and controlling the extrusion force of the friction plate 301 on the first half-threaded bolt 18, which has stronger applicability and better use effect.

[0046] Working principle: in use, when the shell hoist is needed, the operator uses KBK to lower the lifting tool, under the action of the first tension spring 1005 and the second tension spring 1006, the right plate 1 and the left plate 11 are rotated and expanded along the second half threaded bolt 903, then one of the claws 14 is clamped on the outer circle of the shell, the other claw 14 is aligned with the outer circle of the shell, and the shell reinforcing rib is clamped into the clamping groove 16, then the lifting tool is moved upward through KBK, at this time, the right plate 1 and the left plate 11 can be driven to rotate and shrink along the second half threaded bolt 903, at the same time, the first tension spring 1005 and the second tension spring 1006 are stretched, and the two claws 14 are in contact with the outer circle of the shell, realizing clamping operation;

[0047] Then, the shell is turned over by hand, the claw 14 and the first half threaded bolt 18 are rotated, and then the lifting tool is lowered through KBK, so that the shell is placed in the tooling for processing, which can accurately and quickly place the shell in the tooling, after the shell is placed down, the right plate 1 and the left plate 11 can be rotated and expanded under the action of the first tension spring 1005 and the second tension spring 1006, realizing automatic disengagement, so as to facilitate the disengagement of the lifting tool and the shell, which is more convenient and fast, reduces the labor intensity of the operator, improves the processing efficiency, and is more safe and reliable;

[0048] When the shell is turned over, the claw 14 and the first half threaded bolt 18 are rotated, at this time, under the action of the fourth spring 503, the friction plate 301 can be in contact with the side wall of the first half threaded bolt 18, which can limit the rotation of the first half threaded bolt 18, making the turning of the shell more stable and reliable, and by rotating the handle 405, the rotation of the handle 405 drives the rotation of the threaded rod 404, thereby driving the sliding block 403 to move along the guide rod 402, and further driving the first moving block 302 to move, when the friction plate 301 is in contact with the side wall of the first half threaded bolt 18, when the first moving block 302 continues to move, the distance between the first moving block 302 and the connecting block 501 gradually decreases, at the same time, the fourth spring 503 is gradually compressed, at this time, by observing the scale mark 505 indicated by the pointer 507, the compression amount of the fourth spring 503 can be determined, thereby adjusting and controlling the extrusion force of the friction plate 301 on the first half threaded bolt 18, which has stronger applicability and better use effect;

[0049] And, in the reduction shell is turned, can drive the jaw 14 and the first half thread bolt 18 synchronous rotation, at this time, the bolt 203 can be from the first half spherical groove 201 slip out and in the first half thread bolt 18 side wall slip, at the same time, the third spring 602 is compressed, after the reduction shell is turned, when the bolt 203 and the second half spherical groove 202 alignment, under the action of the third spring 602, can make the bolt 203 inserted into the second half spherical groove 202 and limit, such reciprocating, namely can make the reduction shell after turning, can limit the first half thread bolt 18, more stable and reliable, avoid reduction shell random rotation, more stable and reliable, and can guarantee the turning angle is more accurate, guarantee its hoisting turning effect.

[0050] It should be noted that in this document, relationship terms such as first and second are used only to differentiate one entity or action from another, and do not necessarily require or imply these entities or actions are in any actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0051] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shell reducing sling turnover device comprising a right plate (1) and a left plate (11) arranged in cross, characterized in that, The rotating mechanism is arranged between the right plate (1) and the left plate (11), and the reset mechanism is arranged between the right plate (1) and the left plate (11), the upper end of the right plate (1) and the left plate (11) is fixedly connected with a shackle (12), and the lower end of the right plate (1) and the left plate (11) is fixedly connected with a rectangular block (13), the opposite side walls of the two rectangular blocks (13) are provided with two symmetrical clamping claws (14), and the opposite side walls of the two clamping claws (14) are provided with first arc-shaped grooves (15), the top of each clamping claw (14) is provided with a clamping groove (16), and the side wall of each first arc-shaped groove (15) is provided with a counterbore (17), the counterbore (17) is inserted with a first half-threaded bolt (18), and the other end of the first half-threaded bolt (18) penetrates through the side wall of the rectangular block (13) and is threadedly connected with a first nut (19), the side wall of the first half-threaded bolt (18) is sleeved with a flat washer (20), and the flat washer (20) is between the clamping claw (14) and the rectangular block (13), the side wall of the rectangular block (13) is provided with a limiting mechanism for limiting the rotation of the first half-threaded bolt (18), and the side wall of the rectangular block (13) is provided with a speed limiting mechanism for limiting the rotation of the first half-threaded bolt (18), and the side wall of the right plate (1) and the left plate (11) is provided with a detection mechanism for detecting the loosening of the first nut (19); The rotating mechanism comprises a notch (901) formed in the side wall of the right plate (1), and a rectangular frame (902) is fixedly inserted into the notch (901), the left plate (11) is inserted into the rectangular frame (902), and the side walls of the left plate (11) and the rectangular frame (902) are provided with a second half-threaded bolt (903), and the side wall of the second half-threaded bolt (903) is threadedly connected with a second nut (904); The reset mechanism comprises a third half-threaded bolt (1001) and a fourth half-threaded bolt (1002) threadedly connected to the side wall of the left plate (11), and the side wall of the right plate (1) is threadedly connected with a fifth half-threaded bolt (1003) and a sixth half-threaded bolt (1004), the first tension spring (1005) is arranged between the third half-threaded bolt (1001) and the sixth half-threaded bolt (1004), and the second tension spring (1006) is arranged between the fourth half-threaded bolt (1002) and the fifth half-threaded bolt (1003); The limiting mechanism comprises a first half-spherical groove (201) and a second half-spherical groove (202) formed in the side wall of the first half-threaded bolt (18), the side wall of the rectangular block (13) is connected with a bolt (203) through a reset assembly, and the bolt (203) is inserted into the side wall of the rectangular block (13). The speed limiting mechanism comprises a friction plate (301) inserted in the side wall of the rectangular block (13), and a second arc-shaped slot (303) is formed in the side wall of the friction plate (301), the side wall of the rectangular block (13) is connected with a first moving block (302) through a moving mechanism, and the side wall of the first moving block (302) is connected with the side wall of the friction plate (301) through an extension mechanism; The detection mechanism comprises a moving rod (701) inserted in the side wall of the right plate (1) and the left plate (11), one end of the moving rod (701) close to the flat washer (20) is provided with a ball (702), the other end of the moving rod (701) is fixedly connected with a disc (704), the side wall of the moving rod (701) is sleeved with a second spring (703), the top of the disc (704) is provided with a detection assembly, and the detection assembly is used for detecting the movement of the disc (704).

2. A shell reducing spreader turnover device according to claim 1, characterized in that: The detection assembly comprises a mounting block (801) fixedly connected to the top of the disc (704), and the side wall of the mounting block (801) is fixedly connected with a distance sensor (802).

3. The reduced shell spreader roll-over device of claim 1, wherein: The reset assembly comprises two symmetrically arranged first T-shaped guide rods (601) fixedly connected to the side wall of the rectangular block (13), the side wall of the first T-shaped guide rod (601) is sleeved with a second moving block (603), one end of the bolt (203) is fixed to the side wall of the second moving block (603), and the side wall of each first T-shaped guide rod (601) is sleeved with a third spring (602).

4. The reduced shell spreader roll-over device of claim 1, wherein: The moving mechanism comprises an L-shaped plate (401) fixedly connected to the side wall of the rectangular block (13), two symmetrically arranged guide rods (402) are fixedly connected between the L-shaped plate (401) and the rectangular block (13), the side wall of the guide rod (402) is sleeved with a sliding block (403), the side wall of the sliding block (403) is fixed to the first moving block (302), a threaded rod (404) is rotationally connected between the L-shaped plate (401) and the rectangular block (13), one end of the threaded rod (404) is fixedly connected with a rocking wheel (405), and the sliding block (403) is threadedly connected with the side wall of the threaded rod (404).

5. The reduced shell spreader roll-over device of claim 1, wherein: The extension mechanism comprises a connecting block (501) fixedly connected to the side wall of the friction plate (301), the side wall of the connecting block (501) is fixedly connected with two symmetrically arranged second T-shaped guide rods (502), the first moving block (302) is sleeved on the side wall of the second T-shaped guide rod (502), the side wall of each second T-shaped guide rod (502) is sleeved with a fourth spring (503), the top of the connecting block (501) is fixedly connected with a scale plate (504), the top of the scale plate (504) is provided with a scale mark (505), the top of the first moving block (302) is fixedly connected with a supporting block (506), and the side wall of the supporting block (506) is fixedly connected with a pointer (507).

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