Cab assembly line suspension conveyor system

Abstract

The application discloses a cab assembly line suspension conveying system, and particularly relates to the technical field of suspension chain conveying systems, which comprises a chain conveying frame and a lifting appliance assembled on the chain conveying frame. The lifting appliance comprises a bearing bracket, and the bearing bracket is fixedly provided with extension arms arranged in a rectangular array. The end of each extension arm is fixedly provided with a column block, and the column block is slidingly provided with an adjusting block. The adjusting block and the column block are movably provided with a stand column, and the stand column is abuttingly arranged at the bottom of the cab. In the process of suspension conveying by the bearing bracket, if the cab or the bearing bracket shakes due to conveying, the stand column supports the cab to keep still relative to the cab. The stand column and the buffer elastic plate are in contact and extrude the buffer elastic plate to deform, and the stand column and the adjusting block are in friction, so that the problem of damage to the bottom of the cab caused by instantaneous impact force is weakened, and the stability of conveying and the production quality are improved.

Description

Technical Field

[0001] This invention relates to the field of overhead conveyor systems, and more specifically to an overhead conveyor system for a cab assembly line. Background Technology

[0002] The use of overhead conveyor systems for cab assembly is a common and critical design feature in automotive assembly lines. The aim is to transform discrete assembly operations into a continuous, controllable flow production line, improving production efficiency and planning. Currently, overhead conveyors effectively transport loaded goods, and cab lifting typically employs a frame-type spreader that supports the cab chassis, keeping the cab level while providing sufficient space for operation.

[0003] According to patent publication number CN115258563A, published on 2022-11-01, a multi-vehicle shared side panel conveying hanger is disclosed, including: an upper frame, a front door opening suspension support and positioning mechanism, a B-pillar positioning and guiding mechanism, a rear door opening suspension support and positioning mechanism, and a rear wheel arch lower support and positioning mechanism; the front door opening suspension support and positioning mechanism is connected to both sides of the front end of the upper frame; the B-pillar positioning and guiding mechanism is connected to both sides of the middle position of the upper frame; the rear door opening suspension support and positioning mechanism is connected to both sides of the rear end of the upper frame; and the rear wheel arch lower support and positioning mechanism is connected to the rear door opening suspension support and positioning mechanism.

[0004] In the prior art, including the aforementioned patents, for suspended conveying spreaders, there are usually two L-shaped support walls on both sides of the cab. The support rods on the L-shaped support walls support the reinforcing ribs at the bottom of the cab, thereby supporting the vehicle cab. However, when the spreader swings to a certain extent due to turning or other reasons, the heads of the support rods will slide and scrape against the bottom surface of the cab, which is the root cause of the scratches on the reinforcing ribs. Summary of the Invention

[0005] The purpose of this invention is to provide a cab assembly line overhead conveyor system to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cab assembly line suspended conveyor system, comprising a chain conveyor frame and a lifting device mounted on the chain conveyor frame. The lifting device includes a bearing bracket, on which an extension arm arranged in a rectangular array is fixedly installed. An adjustment block is slidably disposed on a column block fixedly installed at the end of the extension arm, and the adjustment block and a column movable inside the column block are in abutting cooperation with the bottom of the cab. A buffer spring plate arranged in a circular array and deforming in abutting cooperation with the column is fixedly installed on the adjustment block.

[0007] Preferably, the buffer plate is provided with an inclined portion that is tilted upward in the default state, and the bottom of the support block fixedly installed on the top of the column and the inclined portion are in a pushing fit.

[0008] Preferably, the suction cup fixedly installed on the top of the support block communicates with the column and the guide cavity opened inside the support block, and a tension spring is provided between the sealing block slidably disposed at the bottom of the guide cavity and the column.

[0009] Preferably, the support block is provided with a plurality of alignment members arranged in a circular array, and the inclined portions of the bent elastic plate and the buffer elastic plate provided on the alignment members are in a pushing fit.

[0010] Preferably, the support block has multiple sliding cavities communicating with the guide cavity, and a piston block is slidably disposed in the sliding cavity.

[0011] Preferably, the alignment member is hinged to the support block, and the slide rod fixedly installed on the piston block is slidably disposed in the guide groove opened on the alignment member.

[0012] Preferably, the end of the bending elastic plate is provided with a curved elastic part, and when the bending elastic plate is attached to the inclined part, the curved elastic part is located on one side of the inclined part of the buffer elastic plate.

[0013] Preferably, the outer wall of the column is fixedly equipped with a plurality of downwardly inclined auxiliary elastic plates, and the auxiliary elastic plates are movably disposed in the grooves opened on the adjusting block, and the auxiliary elastic plates and the inner wall of the grooves push against each other to deform.

[0014] Preferably, the arched portion on the auxiliary elastic plate is movably disposed on the curved bending portion on the buffer elastic plate, and a lower bending portion is disposed between the upper bending plate at the end of the inclined portion and the inclined portion, and the inner bending portion on the auxiliary elastic plate is movably disposed on the lower bending portion.

[0015] Preferably, the bottom of the auxiliary elastic plate and the support block maintain a predetermined gap, and the upper bending plate is movably disposed within the gap.

[0016] In the above technical solution, the cab assembly line suspension conveying system provided by the present invention has the following beneficial effects: during the suspension conveying process using the load-bearing bracket, if the cab or the load-bearing bracket shakes due to conveying, the cab is supported by the column to keep it stationary relative to the cab. The contact and compression of the buffer plate between the column and the buffer plate, as well as the friction between the column and the adjusting block, reduce the problem of instantaneous impact force scratching the cab, thereby improving the stability of conveying and improving production quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the support bracket provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the supporting bracket structure provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the support bracket provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure of the adjustment block provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the adjustment block structure provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the support block structure provided in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the column block structure provided in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the adjustment block installed on the column block according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic cross-sectional view of the support block provided in an embodiment of the present invention;

[0027] Figure 10 This is a schematic cross-sectional view of the buffer spring plate provided in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the cross-sectional structure for force analysis of the auxiliary elastic plate provided in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the cross-sectional structure of the buffer plate under stress analysis provided in an embodiment of the present invention;

[0030] Figure 13 Provided for embodiments of the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0031] Figure 14 Provided for embodiments of the present invention Figure 2 Enlarged structural diagram at point B;

[0032] Figure 15 Provided for embodiments of the present invention Figure 13 Enlarged structural diagram at point C;

[0033] Figure 16 Provided for embodiments of the present invention Figure 13 Enlarged structural diagram at point D.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Support bracket; 2. Column; 3. Sealing block; 4. Adjusting sleeve; 5. Buffer plate; 6. Alignment component; 7. Auxiliary elastic plate; 11. Extension arm; 12. Column block; 13. Top column; 14. Second through slot; 15. Limiting slot; 16. Sliding groove; 21. Support block; 22. Side slot opening; 23. Suction cup; 24. Limiting block; 25. Guide cavity; 26. Movable cavity; 27. Sliding cavity; 31. Sealing block; 32. Limiting plate; 33. Air vent; 34. Tension spring; 35. Sealing 36. Sealing rubber ring; 41. Perforation; 42. Adjusting block; 43. Mounting groove; 44. Groove; 45. First perforation groove; 46. Mounting threaded hole; 47. Block; 48. Inclined support surface; 51. Curved bend; 52. Inclined surface; 53. Tilted part; 54. Lower bend; 55. Upper bend plate; 61. Bending elastic plate; 62. Curved elastic part; 63. Guide groove; 64. Piston block; 65. Slide rod; 71. Inner bend; 72. Arched part. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] like Figure 1-16 As shown, a cab assembly line suspended conveyor system includes a chain conveyor frame and a lifting device mounted on the chain conveyor frame. The lifting device includes a support bracket 1, on which an extension arm 11 arranged in a rectangular array is fixedly installed. An adjustment block 41 is slidably disposed on a column block 12 fixedly installed at the end of the extension arm 11. The adjustment block 41 and the column block 12 are movably disposed within the column block 12 and push against the bottom of the cab. A buffer spring plate 5 arranged in a circular array and deforming in push against the column 2 is fixedly installed on the adjustment block 41.

[0038] Specifically, the extension arm 11 is fixedly installed on the bearing bracket 1 by bolts and nuts, and the column block 12 is fixedly welded to the extension arm 11. An integral top column 13 is fixedly installed on the top of the column block 12, and the outer wall of the top column 13 is symmetrically provided with sliding grooves 16. The slider 48 symmetrically fixedly installed on the adjusting block 41 is slidably disposed in the sliding groove 16. The bottom of the adjusting block 41 is axially rotatably provided with an adjusting sleeve 4, and the adjusting sleeve 4 and the thread provided on the outer wall of the column block 12 are threadedly rotated. One end of the buffer spring plate 5 is fixedly welded to the adjusting block 41. The adjusting block 41 is provided with a first through groove 44, and the column block 12 and the top column 13 are provided with a second through groove 14 that are interconnected. The first through groove 44 and the second through groove 14 are matched and connected to each other. The buffer spring plate 5 extends into the first through groove 44, and the column 2 passes through the first through groove 44 and the second through groove 14.

[0039] Furthermore, a support block 21 is fixedly welded to the top of the column block 12, and multiple limiting grooves 15 arranged in a circular array are opened on the inner wall of the second through groove 14 at the bottom end. Multiple limiting blocks 24 fixedly welded to the outer wall of the column 2 are movably disposed in the limiting grooves 15. Therefore, by the multiple limiting blocks 24 being movably disposed in the limiting grooves 15, the rotation angle of the column 2 is limited. By rotating the adjusting sleeve 4 on the column block 12 by thread, the adjusting sleeve 4 pushes the adjusting block 41 to move upward relative to the column block 12, thereby adjusting the adjusting sleeves 4 on multiple extension arms 11 in sequence for calibration. When the cab is placed on multiple support blocks 21, the adjusted blocks 41, after being adjusted and calibrated, are used to keep the cab level. When the cab is placed on multiple support blocks 21, the support blocks 21 are pressed down and pressed against the top of the adjusting blocks 41. Because the upright 2 is located between multiple buffer plates 5, when the cab is suspended and transported using the chain conveyor and the support bracket 1, if the support bracket 1 shakes momentarily during the transfer, the support bracket 1 will cause multiple column blocks 12 to shake and shift synchronously. When the column block 12 shakes momentarily relative to the upright 2, under the pressure of the cab on the support block 21, the column block 12 will shift relative to the upright 2. During the shift, the top of the adjusting block 41 and the bottom of the support block 21 will generate friction to reduce the impact of the shaking on the support block 21, which will lead to the support block 21 shifting relative to the bottom of the cab and scratching the bottom of the vehicle. At the same time, during the movement of the column block 12 relative to the upright 2, the buffer plate 5 and the upright 2 will be squeezed to deform the buffer plate 5 and reduce the instantaneous impact force, thereby weakening the impact. Similarly, if the cab shakes due to the suspension transport, the cab moves the support block 21, which in turn causes the column 2 on the support block 21 to compress the buffer plate 5 and deform, reducing the instantaneous impact force. The friction between the top of the adjusting block 41 and the bottom of the support block 21 further eliminates the impact. Compared with conventional support brackets and cabs that are damaged by shaking, the support block 21 remains stationary relative to the cab, and the friction between the support block 21 and the adjusting block 41, combined with the deformation of the buffer plate 5, can effectively eliminate the impact and scratches.

[0040] In the above technical solution, during the process of suspending and conveying using the support bracket 1, if the cab or the support bracket 1 shakes due to the conveying, the support column 2 supports the cab to keep it stationary relative to the cab. The contact and compression between the support column 2 and the buffer plate 5 and the deformation of the buffer plate 5, as well as the friction between the support column 2 and the adjusting block 41, reduce the problem of scratches on the bottom of the cab caused by the instantaneous impact force, thereby improving the stability of the conveying and improving the production quality.

[0041] As a further embodiment of the present invention, the buffer plate 5 is provided with an inclined portion 53 that is tilted upward in the default state, and the bottom of the support block 21 fixedly installed on the top of the column 2 and the inclined portion 53 are in a pushing fit.

[0042] Specifically, the inclined part 53 and the buffer plate 5 are an integral structure, such as Figure 15 As shown, in the default state, the inclined portions 53 on multiple buffer plates 5 push against the bottom of the support block 21 to maintain a certain distance between the bottom of the support block 21 and the top of the adjusting block 41. When the cab is placed on the support block 21, the support block 21 simultaneously presses down, causing the inclined portions 53 to deform and store force, thus buffering the cab's descent. Simultaneously, when the cab experiences a momentary vertical drop, the elastic reset of the multiple buffer plates 5 maintains support for the cab, preventing a strong impact on the cab during the sudden drop. The multiple buffer plates 5 also buffer when the column 2 moves relative to the column block 12, providing vertical cab buffering and horizontal column 2 buffering, thereby improving stability during transport.

[0043] As another embodiment of the present invention, the suction cup 23 fixedly installed on the top of the support block 21 is connected to the column 2 and the guide cavity 25 opened in the support block 21, and a tension spring 34 is provided between the sealing block 3 slidably disposed at the bottom of the guide cavity 25 and the column 2.

[0044] Specifically, the bottom of the column 2 has a movable cavity 26 connected to the guide cavity 25. A sealing rubber ring 35 is fixedly bonded to the end of the movable cavity 26 located in the guide cavity 25. An integral sealing block 31 fixedly installed on one side of the sealing block 3 is movably disposed in the movable cavity 26. A limiting plate 32 is fixedly installed on the outer wall of the sealing block 31. Multiple air guide holes 33 are opened on the limiting plate 32. The two ends of the tension spring 34 are respectively fixedly installed on the limiting plate 32 and the inner wall of the movable cavity 26. In the default state, the tension spring 34 pulls the sealing block 31 to close the guide cavity 25. When the cab is placed on the support block 21, the air in the suction cup 23 is discharged along the side of the suction cup 23 and the guide cavity 25. The air discharged from the guide cavity 25 pushes open the sealing block 31, and the sealing block 31 slides so that the air in the movable cavity 26 is discharged along the air guide holes 33 and the perforations 36 opened on the sealing block 3. Then, under the action of the suction cup 23, the support block 21 is adsorbed to the bottom of the cab. Furthermore, the suction cup 23 is used to improve the stability of the support block 21 and the bottom of the cab, reduce scratches between the support block 21 and the cab, and at the same time strengthen the synchronous movement of the support block 21 and the cab.

[0045] After the cab suspension is completed, the cab is moved upward or the load-bearing bracket 1 is moved downward, so that the column 2 and the column block 12 move relative to each other along the axial direction. The suction cup 23 adsorbs and creates negative pressure in the guide cavity 25. Then the column block 12 pushes the sealing block 3 so that the sealing block 31 slides open the guide cavity 25. At this time, the pressure in the guide cavity 25 is restored, the suction cup 23 returns to its deformation and detaches from the cab. Then, by using the sliding of the sealing block 3 and the adsorption of the suction cup 23, the support block 21 is adsorbed, which also facilitates the subsequent quick release of the support block 21 from the bottom of the vehicle.

[0046] As another embodiment of the present invention, the support block 21 is provided with a plurality of alignment members 6 arranged in a circular array, and the bent elastic plate 61 provided on the alignment member 6 and the inclined part 53 on the buffer elastic plate 5 are in a pushing fit.

[0047] Specifically, the alignment component 6 is fixedly installed on the support block 21. Before the cab is placed on the support block 21, the inclined portions 53 on the multiple buffer spring plates 5 push against the bottom of the support block 21, so that the bottom of the support block 21 and the top of the adjusting block 41 maintain a certain distance. In this state, the inclined portions 53 and the bending elastic plate 61 maintain a certain distance. After the multiple buffer spring plates 5 push the support block 21 to fit against the bottom of the cab, and the suction cup 23 is attached to the bottom of the cab, as the cab moves down, the support block 21 presses down on the multiple inclined portions 53 and deforms downward. At the same time, the bending elastic plate 61 gradually approaches the inclined portions 53, and under the obstruction of the inclined portions 53, the bending elastic plate 61 is bent and deformed. The plate 61 is pushed and deformed, and then multiple buffer spring plates 5 push the support block 21 and make the support block 21 adhere to the bottom of the cab. After the buffer spring plates 5 and the inclined part 53 deform to buffer the cab in the vertical direction, the inclined part 53 then blocks the bent elastic plate 61, causing the bent elastic plate 61 to deform, thereby further buffering the cab's fall and improving the stability of the cab when it is placed. When the cab experiences vertical impact and shaking, the buffer spring plates 5, the inclined part 53, and the bent elastic plate 61 restore their deformation to push the cab, thereby making the support block 21 and the cab fit stably and reducing the vertical impact force on the cab. After the inclined part 53 is deformed by the cab, it can further buffer the horizontal deformation of the column 2 as the cab shakes, thereby improving the horizontal stability of the cab.

[0048] As another embodiment of the present invention, the support block 21 is provided with a plurality of sliding cavities 27 communicating with the guide cavity 25, and a piston block 64 is slidably disposed in the sliding cavity 27.

[0049] Specifically, the piston block 64 is slidably sealed within the slide cavity 27. When the cab is placed on the support block 21 and pressed down, the suction cup 23 expels the air between them and adheres to the bottom of the cab. Then, multiple piston blocks 64 slide to draw in the slide cavity 27, thereby increasing the negative pressure intensity within the guide cavity 25. This action enhances the suction force of the suction cup 23 on the bottom of the cab, ensuring the stability of the connection between the support block 21 and the cab during transport. When it is necessary to release the adhesion, multiple piston blocks 64 slide again to reset the position. This allows the subsequent column block 12 to push the sealing block 3, causing the sealing block 31 to slide open the guide cavity 25. At this time, the pressure within the guide cavity 25 is restored, the suction cup 23 returns to its original shape, and detaches from the cab.

[0050] The piston block 64 can slide by means of being pulled by a twisted roller and a rope; or by being squeezed; or by any means known to those skilled in the art to drive the piston block 64 to slide.

[0051] As the preferred embodiment of the present invention, the alignment member 6 is hinged on the support block 21, and the slide rod 65 fixedly installed on the piston block 64 is slidably disposed in the guide groove 63 opened on the alignment member 6.

[0052] Specifically, the outer wall of the support block 21 has multiple side slots 22, and the alignment member 6 is hinged to the inner wall of the side slots 22. The slide rod 65 is fixedly welded to the piston block 64, such as... Figure 9 and Figure 15 As shown, since the bending elastic plate 61 is located on the side of the hinge shaft relative to the guide groove 63, in the default state, the gravity of the bending elastic plate 61 will cause the alignment member 6 to flip down, and the alignment member 6 on the side of the guide groove 63 to flip up, thereby causing the piston block 64 to be located more in the slide cavity 27.

[0053] Furthermore, when the cab is placed on the support bracket 1, multiple buffer plates 5 support the support block 21 against the bottom of the cab. After the suction cup 23 adheres to the bottom of the cab, as the cab moves downward, the support block 21 presses down on multiple inclined parts 53, causing them to fold downward. Simultaneously, the bent elastic plate 61 gradually approaches the inclined parts 53. Then, the inclined parts 53 block the bent elastic plate 61, causing it to be pushed upward and fold. Upon contact with the support block 21, the bent elastic plate 61 deforms to buffer the falling of the support block 21. During the upward pushing of the bent elastic plate 61, the slide rod 65 slides within the guide groove 63, simultaneously driving the piston block 64 to slide outward from the slide cavity 27. The sliding of the piston block 64 enhances the negative pressure effect within the guide cavity 25 connected to the slide cavity 27, thereby improving the adhesion between the support block 21 and the cab. This improves the horizontal stability of the cab.

[0054] As another embodiment of the present invention, the end of the bending elastic plate 61 is provided with a curved elastic part 62, and when the bending elastic plate 61 is attached to the inclined part 53, the curved elastic part 62 is located on the inclined part 52 side of the buffer elastic plate 5.

[0055] Specifically, the curved elastic part 62 and the bent elastic plate 61 are an integral structure. Therefore, after the bottom of the support block 21 is pushed by the buffer plate 5 and the inclined part 53 to make the support block 21 fit against the bottom of the cab and the suction cup 23 is attached to the bottom of the cab, as the buffer plate 5 is compressed and the inclined part 53 deforms downward, and then the inclined part 53 pushes the bent elastic plate 61 upward and fits against the bottom of the support block 21, at this time the curved elastic part 62 is located on the inclined part 52 side of the buffer plate 5, such as... Figure 9 and Figure 10 As shown, if the supporting bracket 1 experiences a momentary sway due to the transfer, the supporting bracket 1 will cause multiple column blocks 12 to sway and shift synchronously. When the column blocks 12 experience a momentary sway relative to the column 2, such as... Figure 10 The solid arrow indicates the direction of movement of column 2. Column 2 moves the curved elastic part 62 closer to the inclined surface 52, compressing the inclined surface 52 to deform and store force to reduce the impact. At the same time, the curved elastic part 62 is pressed against the inclined surface of the inclined surface 52, and the curved elastic part 62 itself also deforms to further reduce the impact. Figure 10 The dashed arrow indicates the direction of force rotation of the inclined section 52. Under this rotation direction, the buffer plate 5 deforms and is subjected to force in both the horizontal and vertical directions. The vertical deformation of the buffer plate 5 weakens the impact force generated in the horizontal direction, thus achieving vertical buffering and further buffering of the horizontal force from the vertical force. This effectively stabilizes the cab using the buffer plate 5.

[0056] As another embodiment of the present invention, a plurality of downwardly inclined auxiliary elastic plates 7 are fixedly installed on the outer wall of the column 2, and the auxiliary elastic plates 7 are movably disposed in the groove 43 opened on the adjusting block 41, and the auxiliary elastic plates 7 and the inner wall of the groove 43 push against each other to deform.

[0057] Specifically, the grooves 43 are arranged in a circular array on the top of the adjusting block 41, and the inner walls of the grooves 43 on opposite sides are provided with mounting grooves 42, such as... Figure 5 As shown, the inner wall of the mounting groove 42 is provided with mounting threaded holes 45. Two mounting grooves 42 located within the groove 43 are fitted with guard blocks 46, and each guard block 46 is provided with an inclined support surface 47 located within the groove 43. The guard blocks 46 are fixedly installed within the mounting groove 42 by using hexagon socket head cap screws installed into the mounting threaded holes 45.

[0058] Furthermore, when the cab is placed on the support bracket 1, multiple buffer plates 5 support the support block 21 against the bottom of the cab. After the suction cup 23 adheres to the bottom of the cab, as the cab moves downward, the support block 21 presses down on multiple inclined parts 53, causing them to fold downward and deform. At the same time, the bent elastic plate 61 gradually approaches the inclined part 53. Then, the inclined part 53 folds down and adheres to the inclined support surface 47. Under the support of the inclined support surface 47, the inclined part 53 blocks the bent elastic plate 61, and the bent elastic plate 61 is pushed upward and flipped, contacting the support block 21. The bending elastic plate 61 further deforms after block 21 to cushion the fall of block 21. As block 21 slides down and approaches the top of adjusting block 41, one end of auxiliary elastic plate 7 gradually adheres to the inner wall of groove 43. At the same time, the auxiliary elastic plate 7 is blocked by the inner wall of groove 43 and arches. Thus, by using multiple auxiliary elastic plates 7 and multiple buffer plates 5 in conjunction with bending elastic plate 61, multi-layered cushioning is achieved when the cab falls. At the same time, when the cab experiences impact and shaking, the stored force is released to weaken the shaking impact. This improves the stability of the cab during transportation.

[0059] As another embodiment of the present invention, the arched portion 72 provided on the auxiliary elastic plate 7 is movably disposed on the curved bending portion 51 provided on the buffer elastic plate 5, and a lower bending portion 54 is provided between the upper bending plate 55 provided at the end of the inclined portion 53 and the inclined portion 53, and the inner bending portion 71 provided on the auxiliary elastic plate 7 is movably disposed on the lower bending portion 54.

[0060] Specifically, the curved bend 51 of the integral part on the buffer plate 5 moves within the groove 43, and the width of the auxiliary elastic plate 7 is smaller than the vertical distance between the two inner walls of the groove 43. For example... Figure 11 As shown, when the support block 21 is lowered by the vehicle cab, the upper bending plate 55 at the end of the buffer plate 5 contacts the bottom of the support block 21, thereby causing the inclined part 53 to deform and flip downwards, then adhere to the inclined support surface 47. Subsequently, the inclined part 53 pushes the bending elastic plate 61 upwards, and after contacting the support block 21, the bending elastic plate 61 further deforms to buffer the falling of the support block 21. Then, the bottom of the support block 21 adheres to the top of the adjusting block 41, and the lower bending part 54 is embedded in the inner bending part 71. Figure 11As shown, the solid arrow indicates the direction of movement of the column 2. The column 2 drives the auxiliary elastic plate 7 to press against the inner wall of the groove 43. Due to the obstruction of the inner wall of the groove 43, the arched part 72 on the auxiliary elastic plate 7 arches and pushes against the curved bending part 51, thus deforming. Under the compression action between the arched part 72 and the curved bending part 51, the instantaneous impact of the column 2 moving relative to the column block 12 caused by the swaying of the vehicle or the swaying of the support bracket 1 is weakened. At the same time, the arching of the auxiliary elastic plate 7 causes the inner bending part 71 to move upward and push against the lower bending part 54. The lower bending part 54 is blocked by the bottom of the support block 21, which causes the upper bending plate 55 to be squeezed and deformed, thereby further buffering the impact force. Furthermore, by utilizing the cooperation of the integrated multiple parts of the lower bending part 54, the curved bending part 51 and the upper bending plate 55 on the auxiliary elastic plate 7 and the buffer elastic plate 5, multi-level horizontal impact buffering is further achieved. Figure 11 The dashed arrows indicate the direction in which the inner bend 71 and the arched portion 72 on the auxiliary elastic plate 7 arch when displaced in the direction of the solid arrows. Furthermore, through the deformation and coordination of different parts of the buffer plate 5 and the auxiliary elastic plate 7, effective buffering of vertical and horizontal impacts on the cab can be achieved. And with the support block 21 adhering to the bottom of the cab, its movable nature allows it to maintain a certain relative stillness with the vehicle bottom, thereby reducing scratches and other damage to the vehicle's underside.

[0061] As a further preferred embodiment of the present invention, the bottom of the auxiliary elastic plate 7 and the support block 21 maintains a predetermined gap, and the upper bending plate 55 is movably disposed within the gap.

[0062] Specifically, such as Figure 12 As shown, the solid arrow indicates the direction of movement of the column 2. When the bottom of the support block 21 is attached to the top of the adjusting block 41, and the lower bend 54 is embedded in the inner bend 71, the column 2 moves in the direction of the arrow, causing the arched part 72 to press against the curved bend 51, and the inner bend 71 arches upward to push against the lower bend 54. This causes the lower bend 54, the curved bend 51, and the upper bend plate 55 on the buffer plate 5 to deform to buffer the impact. Figure 12The dashed arrow indicates the direction of movement of the lower bend 54 relative to the column 2. In this direction, the lower bend 54 can slide on the downward-sloping auxiliary elastic plate 7 near the column 2. Furthermore, by sliding within a predetermined gap maintained between the bottom of the auxiliary elastic plate 7 and the support block 21, the lower bend 54 further compresses the upper bend plate 55 and the lower bend 54, causing deformation and force storage. Simultaneously, the arching of the auxiliary elastic plate 7 and the downward compressive force interact, thus hindering the arching of the auxiliary elastic plate 7 and weakening the impact force. At the same time, a portion of the compressive force acts vertically, achieving vertical force reception and energy storage, which is beneficial for buffering and supporting subsequent vertical impacts, thereby improving the stability of the cab during transport.

[0063] Working principle: First, by rotating the adjusting sleeve 4, the adjusting block 41 is driven to rise and fall along the slide groove 16 on the column block 12, and the height of the support blocks 21 on the multiple extension arms 11 is calibrated to ensure that the cab remains level after placement. When the cab falls, its gravity acts on the support block 21, pressing down the upper bending plate 55 at the end of the inclined part 53 on the buffer spring plate 5, which is tilted upward by default, causing the inclined part 53 to fold downward and deform, providing initial vertical buffer; at the same time, the suction cup 23 on the top of the support block 21 is pressed, and the internal air is discharged after pushing open the closed block 31 tightened by the tension spring 34 through the guide cavity 25, forming an adsorption. During this process, the further downward tilting of the inclined part 53 pushes the bent elastic plate 61 of the alignment member 6 hinged to the support block 21, causing it to tilt upward and provide secondary cushioning. The rotation of the alignment member 6 drives the slide rod 65 fixed to the piston block 64 through the guide groove 63 on it, causing the piston block 64 to slide in the slide cavity 27, actively suctioning to enhance the negative pressure in the guide cavity 25 and improve the adsorption reliability. In addition, the auxiliary elastic plate 7 on the column 2 is squeezed in the groove 43 of the adjusting block 41 to provide three vertical cushioning.

[0064] If the support bracket 1 shakes, the column block 12 will shift accordingly. However, the support block 21 and column 2, which are held in place by the suction cup 23, tend to remain stationary relative to the cab, causing the column 2 to deform by compressing the surrounding buffer plate 5 to absorb the horizontal impact. If the cab itself shakes, it will cause the support block 21 and column 2 to move, similarly compressing the buffer plate 5. Furthermore, when an impact occurs and the column 2 moves along... Figure 10 and Figure 11When the solid arrow moves relative to the column block 12, the arched part 72 pushes against the curved bend 51 of the buffer plate 5, while the inner bend 71 on the auxiliary elastic plate 7 moves upward and pushes against the lower bend 54 of the buffer plate 5, thereby deforming the upper bend plate 55 and forming a multi-layered buffer. The curved elastic part 62 at the end of the bend elastic plate 61 will also press against the inclined part 52 of the buffer plate 5 during shaking, further consuming the impact energy. Throughout the process, through the limiting cooperation of the limiting block 24 and the limiting groove 15, the column 2 can move horizontally to a limited extent. Finally, through the deformation and cooperation of different parts on the buffer plate 5 and the auxiliary elastic plate 7, the vertical and horizontal impacts on the cab can be effectively buffered, and the impact during the transportation process can be effectively eliminated, preventing scratches on the bottom of the cab and ensuring the stability of the transportation.

[0065] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A suspended conveyor system for a cab assembly line, comprising a chain conveyor frame and a lifting device mounted on the chain conveyor frame, characterized in that, The lifting device includes a support bracket (1), on which an extension arm (11) arranged in a rectangular array is fixedly installed. An adjustment block (41) is slidably installed on a column block (12) fixedly installed at the end of the extension arm (11). The column (2) movably installed in the adjustment block (41) and the column block (12) is in a push-fitting cooperation with the bottom of the cab. A buffer spring plate (5) arranged in a circular array and deformed in a push-fitting cooperation with the column (2) is fixedly installed on the adjustment block (41). The buffer plate (5) is provided with an inclined part (53) that is tilted upward in the default state, and the bottom of the support block (21) fixedly installed on the top of the column (2) and the inclined part (53) are in a pushing fit. The support block (21) is provided with a plurality of alignment members (6) arranged in a circular array, and the bent elastic plate (61) provided on the alignment member (6) and the inclined part (53) on the buffer elastic plate (5) are in a pushing fit. The support block (21) is provided with multiple sliding cavities (27) that communicate with the guide cavity (25), and a piston block (64) is slidably arranged in the sliding cavity (27). The alignment member (6) is hinged to the support block (21), and the slide rod (65) fixedly installed on the piston block (64) is slidably disposed in the guide groove (63) opened on the alignment member (6).

2. The overhead conveyor system for a cab assembly line according to claim 1, characterized in that, The suction cup (23) fixedly installed on the top of the support block (21) is connected to the guide cavity (25) opened in the column (2) and the support block (21). A tension spring (34) is provided between the sealing block (3) slidably set at the bottom of the guide cavity (25) and the column (2).

3. The overhead conveyor system for a cab assembly line according to claim 1, characterized in that, The end of the bending elastic plate (61) is provided with a curved elastic part (62), and when the bending elastic plate (61) is attached to the inclined part (53), the curved elastic part (62) is located on the inclined part (52) side of the buffer elastic plate (5).

4. The overhead conveyor system for a cab assembly line according to claim 1, characterized in that, The outer wall of the column (2) is fixedly installed with a plurality of downwardly inclined auxiliary elastic plates (7), and the auxiliary elastic plates (7) are movably disposed in the groove (43) opened on the adjusting block (41). The auxiliary elastic plates (7) and the inner wall of the groove (43) push against each other to deform.

5. A cab assembly line overhead conveyor system according to claim 4, characterized in that, The arched portion (72) provided on the auxiliary elastic plate (7) is movably disposed on the curved bending portion (51) provided on the buffer elastic plate (5), and a lower bending portion (54) is provided between the upper bending plate (55) provided at the end of the inclined portion (53) and the inclined portion (53), and the inner bending portion (71) provided on the auxiliary elastic plate (7) is movably disposed on the lower bending portion (54).

6. The overhead conveyor system for a cab assembly line according to claim 4, characterized in that, The bottom of the auxiliary elastic plate (7) and the support block (21) maintains a predetermined gap, and the upper bending plate (55) is movably disposed within the gap.

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