Cable hoisting equipment for arch bridge construction

Abstract

The invention relates to cable lifting equipment, and discloses cable lifting equipment for arch bridge construction, which comprises a lifting beam, a lifting lug is arranged on the lifting beam, supporting rods which are correspondingly arranged on two sides are slidably arranged on the lifting beam, a winding roller is rotatably arranged on the supporting rods, a steel wire rope is wound on the winding roller, an L-shaped plate is hinged to one side of each supporting rod, and a guide wheel is arranged at one end of each L-shaped plate. A steel wire rope penetrates through the supporting rod and a guide wheel on the L-shaped plate, a rotating mechanism for controlling the winding roller to rotate is arranged on the supporting rod, a fixing mechanism for limiting the supporting rod is arranged on one side of the supporting rod, and four clamping plates are hinged to the hanging beam. And meanwhile, the lifting points can be automatically adjusted according to the prefabricated parts with different lengths, so that the steel wire rope is in a vertical state, the service life is prolonged, the gradient of the prefabricated parts can be changed, and time and labor are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable hoisting equipment, and particularly relates to a cable hoisting equipment for arch bridge construction. BACKGROUND

[0002] The cable hoisting equipment is also called a wire running trolley. A lifting trolley with a material taking device is arranged along a crane running overhead. The cable hoisting equipment is commonly used in occasions where other hoisting methods are inconvenient, the hoisting weight is not large, and the span and height are large, such as bridge construction, hydropower station construction and the like. A steel cable is arranged between two supporting points to provide lateral support. A driving device drives the lifting trolley to move along the cable to realize horizontal displacement. A hoisting device on the lifting trolley hoists or lowers the weight through the steel wire rope to complete vertical lifting operation. An operator accurately controls the whole process through a control system to realize accurate hoisting and placing of the weight.

[0003] In arch bridge construction, a steel pipe concrete arch bridge is commonly used. The steel pipe concrete arch bridge uses a steel pipe as an outer mold, and is filled with concrete. The two materials are cooperatively stressed, and the advantages are obvious. Meanwhile, the construction is more convenient. The arch ribs are prefabricated in a factory, and then are transported to a designated position. The arch ribs are hoisted and spliced through the cable hoisting equipment. The construction is convenient, the construction period is shortened, and the construction cost is reduced.

[0004] In hoisting of the prefabricated part, the prefabricated part is only connected with the hoisting equipment through a hoisting rope. The prefabricated part may be shaken by wind, and the falling risk is increased. Meanwhile, in hoisting, the hoisting point is fixed. When the prefabricated parts of different lengths are hoisted, the hoisting rope is inclined, and the service life of the hoisting rope is shortened. When the prefabricated part is hoisted to the designated position, workers need to assist in changing the inclination, which is time-consuming and laborious. SUMMARY

[0005] The present application aims to overcome the above-mentioned difficulties, and provides a cable hoisting equipment for arch bridge construction.

[0006] To solve the above-mentioned technical problems, the technical scheme provided by the present application is as follows: a cable hoisting equipment for arch bridge construction, comprising a hoisting beam, a lifting lug is arranged on the hoisting beam, two support rods are arranged on the hoisting beam in a sliding mode, a winding roller is rotatably arranged on the support rod, a steel wire rope is wound on the winding roller, an L-shaped plate is hingedly arranged on one side of the support rod, a guide wheel is arranged on one end of the L-shaped plate, the steel wire rope passes through the support rod and the guide wheel, a rotating mechanism for controlling rotation of the winding roller is arranged on the support rod, a fixing mechanism for limiting the support rod is arranged on one side of the support rod, four clamping plates are hingedly arranged on the hoisting beam, a transmission mechanism for driving the four clamping plates to rotate through rotation of the L-shaped plate is arranged on the hoisting beam, the steel wire rope is tightened when hoisting is performed, the L-shaped plate is driven to rotate by the steel wire rope, the fixing mechanism and the transmission mechanism are driven to rotate by the L-shaped plate, the clamping plates are driven to clamp the prefabricated part by the transmission mechanism, the support rod is fixed on the hoisting beam by the fixing mechanism, and the winding and unwinding of the steel wire rope are controlled by the rotating mechanism to change the inclination of the prefabricated part.

[0007] As an improvement, the rotating mechanism includes a socket on the hanging beam, the support rod is inserted into the socket, and a rotating shaft 2 that passes through the support rod is provided in the socket, and a driving wheel 1 that is sleeved on the rotating shaft 2 is provided on the support rod, and the rotating shaft 2 drives the driving wheel 1 to rotate. A screw is movably inserted on the support rod, and a moving mechanism that drives the screw to move by rotating the driving wheel 1 is provided on the support rod, and a sleeve is provided on the screw to rotate, and a transmission gear is provided at one end of the winding roller, and a transmission rack that meshes with the transmission gear is slidably provided on the support rod, and a connecting block is provided on one side of the transmission rack, and the other end of the connecting block is fixedly connected to the sleeve.

[0008] As an improvement, the moving mechanism includes a threaded sleeve rotatably arranged on the support rod, the threaded sleeve is threadedly connected to the screw rod, one end of the threaded sleeve is provided with a driven wheel, and a transmission belt is provided between the driving wheel and the driven wheel.

[0009] As an improvement, the support rod is provided with fixed plates arranged on both sides, the L-shaped plate is provided with a rotating shaft arranged on both sides, the rotating shaft is rotatably set on the fixed plate, and a torsion spring is provided between the end of the rotating shaft and the fixed plate.

[0010] As an improvement, the fixing mechanism includes two L-shaped slides slidably arranged on the bottom surface of the support rod, a spring is provided between the L-shaped slide and the support rod, a plurality of teeth are provided on the inner side of the suspension beam, one end of the L-shaped slide is provided with a tooth block matching the teeth, the bottom surface of the support rod is provided with a connecting plate, a driven wheel 2 is rotatably provided on the connecting plate, a driving block matching the L-shaped slide is provided on the driven wheel 2, one side of the driving block is an inclined surface, and the driving block rotates to drive the L-shaped slide to slide, a driving wheel 2 is provided at one end of the rotating shaft, and a transmission belt 2 is provided between the driving wheel 2 and the driven wheel 2.

[0011] As an improvement, the transmission mechanism includes a fixed seat arranged on the suspension beam and corresponding to the splint, two torsion springs are provided between the splint and the suspension beam, a rotating shaft arranged correspondingly on both sides of the fixed seat is rotatable, a gear 1 is staggered on the rotating shaft, a rack 1 is slidably provided on the fixed seat and meshed with the gear 1, a connecting rod is movably inserted at one end of the rack 1, two springs are provided between the connecting rod and the rack 1, a push block abutting against the splint is provided at one end of the connecting rod, a connecting frame is slidably provided on the bottom surface of the suspension beam, the L-shaped plate rotates to push the connecting frame downward, and a linkage mechanism is provided between the connecting frame and the suspension beam, which drives the two rotating shafts to rotate in opposite directions when the connecting frame moves downward.

[0012] As an improvement, the linkage mechanism includes an insertion column arranged on the connecting frame, the insertion column passes through the suspension beam, a reset spring is provided between one end of the insertion column and the suspension beam, a gear 2 is provided at one end of the rotating shaft, an extension frame is provided on the insertion column, and a rack 2 meshing with gear 2 is provided on the extension frame.

[0013] As an improvement, the bottom surface of the support rod is provided with a limiting mechanism for limiting the position of the wire rope. The limiting mechanism includes a through hole on the support rod, and positioning wheels arranged correspondingly on both sides are rotatable in the through hole. The wire rope is located between the two positioning wheels, and the guide wheel is provided with an arc-shaped limiting rod for limiting the position of the wire rope.

[0014] The advantages of the present invention compared with the prior art are: 1. By setting up four clamping plates and a transmission mechanism, when the prefabricated part is lifted, the weight of the prefabricated part drives the L-shaped plate to rotate, the L-shaped plate drives the transmission mechanism, and the transmission mechanism drives the four clamping plates to rotate to clamp the prefabricated part, making it less likely to shake and reducing the risk of falling; 2. By setting two sliding support rods, the wire rope can be automatically adjusted to the appropriate position according to the length of the prefabricated part during hoisting, so as to keep the wire rope in a vertical state and improve the service life of the wire rope; 3. By setting a winding roller and a rotating mechanism on the hanging beam, after the prefabricated part is hoisted to the specified position, the winding roller is driven by the rotating mechanism to rotate and the wire rope is retracted and released, so that the inclination of the prefabricated part can be adjusted, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereoscopic diagram of a cable hoisting device for arch bridge construction according to the present invention.

[0016] Figure 2 It is a top view of a cable hoisting device for arch bridge construction according to the present invention.

[0017] Figure 3 The present invention is a schematic diagram of a rotating mechanism of a cable hoisting device for arch bridge construction.

[0018] Figure 4 It is an exploded view of a rotating mechanism of a cable hoisting device for arch bridge construction according to the present invention.

[0019] Figure 5 It is a schematic diagram of a fixing mechanism of a cable hoisting device for arch bridge construction according to the present invention.

[0020] Figure 6 The present invention is a bottom view of a cable hoisting device for arch bridge construction.

[0021] Figure 7 This invention is a cable hoisting equipment for arch bridge construction Figure 6 Enlarged view of point A in the middle.

[0022] Figure 8 It is a schematic diagram of a driving mechanism of a cable hoisting device for arch bridge construction according to the present invention.

[0023] Figure 9 This is an enlarged view of point B of a cable hoisting device for arch bridge construction according to the present invention.

[0024] Figure 10 It is a cross-sectional view of a cable hoisting device for arch bridge construction according to the present invention.

[0025] As shown in the figure: 1. Lifting beam; 11. Lifting eye; 12. Limiting spring; 2. Support rod; 21. Limiting mechanism; 22. Through hole; 23. Positioning wheel; 24. Arc-shaped limiting rod; 3. Winding roller; 31. Wire rope; 4. L-shaped plate; 41. Guide wheel; 42. Fixed plate; 43. Rotating shaft 1; 44. Torsion spring 1; 5. Rotating mechanism; 51. Socket; 52. Rotating shaft 2; 53. Driving wheel 1; 54. Screw; 55. Moving mechanism; 551. Threaded sleeve; 552. Driven wheel 1; 553. Transmission belt 1; 56. Sleeve; 57. Transmission gear; 58. Transmission Rack; 59. Connecting block; 6. Fixing mechanism; 61. L-shaped slide; 62. Spring 1; 63. Tooth groove; 64. Tooth block; 65. Connecting plate; 66. Driven wheel 2; 67. Driving block; 68. Driving wheel 2; 69. Transmission belt 2; 7. Clamp; 71. Roller; 8. Transmission mechanism; 81. Fixed seat; 82. Torsion spring 2; 83. Rotating shaft; 84. Gear 1; 85. Rack 1; 86. Connecting rod; 87. Push block; 88. Connecting frame; 9. Linkage mechanism; 91. Insert column; 92. Return spring; 93. Gear 2; 94. Extension frame; 95. Rack 2. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 10 As shown, a cable lifting equipment for arch bridge construction includes a hanging beam 1, a lifting ear 11 is provided on the hanging beam 1, and a support rod 2 is slidably provided on both sides of the hanging beam 1, a limit spring 12 is provided between the support rod 2 and the hanging beam 1, a winding roller 3 is rotatably provided on the support rod 2, and a wire rope 31 is wound around the winding roller 3, an L-shaped plate 4 is hinged on one side of the support rod 2, a guide wheel 41 is provided at one end of the L-shaped plate 4, and the wire rope 31 passes through the support rod 2 and the guide wheel 41, a rotating mechanism 5 for controlling the rotation of the winding roller 3 is provided on the support rod 2, and a fixing mechanism 6 for limiting the support rod 2 is provided on one side of the support rod 2, four splints 7 are hinged on the hanging beam 1, and a plurality of rollers 71 are rotatably provided on the splint 7, and a transmission mechanism 8 for driving the four splints 7 to rotate by the L-shaped plate 4 is provided on the hanging beam 1.

[0028] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 10As shown, the lifting and rising tightens the wire rope 31, and the wire rope 31 drives the L-shaped plate 4 to rotate. The rotation of the L-shaped plate 4 drives the fixing mechanism 6 and the transmission mechanism 8. The transmission mechanism 8 drives the clamping plate 7 to clamp the prefabricated part. The fixing mechanism 6 fixes the support rod 2 on the hanging beam 1, and the rotating mechanism 5 controls the retraction and extension of the wire rope 31 to change the inclination of the prefabricated part.

[0029] The working principle of the present invention is as follows: in the initial state, the limit spring 12 is in a relaxed state, and the ends of the two steel wire ropes 31 are connected to the prefabricated part. There will be holes on the prefabricated part for convenient lifting. The positions of the holes will vary according to the length of the prefabricated part. The lifting equipment lifts the hanging beam 1 through the lifting lug 11. During the lifting process, the steel wire rope 31 gradually tightens and drives the L-shaped plate 4 to rotate. At the same time, the tightened steel wire rope 31 tends to be vertical, thereby pushing the support rod 2 to slide, the limit spring 12 is compressed, and the L-shaped plate 4 rotates to drive the fixing mechanism 6 and the transmission mechanism 8. When the steel wire rope 31 is vertical, the fixing mechanism 6 makes the support rod 2 It is fixed horizontally on the hanging beam 1, and the transmission mechanism 8 drives the splint 7 to rotate. The roller 71 on the splint 7 fits with the prefabricated part. At this time, the prefabricated part is limited. During the hoisting of the prefabricated part, the prefabricated part can be kept fixed and not prone to shaking. At the same time, the wire rope 31 is in a vertical state, which increases the service life of the wire rope 31. After hoisting to the appropriate position, the rotating mechanism 5 is started. The rotating mechanism 5 drives the two winding rollers 3 to rotate. The winding rollers 3 rotate in opposite directions, so that one winds up and the other relaxes, thereby tilting the prefabricated part. When the appropriate inclination is reached, the rotating mechanism 5 is stopped and then assembled.

[0030] Combined with attachment Figure 1 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 As shown, the rotating mechanism 5 includes a socket 51 on the hanging beam 1, the support rod 2 is inserted into the socket 51, and a rotating shaft 2 52 that passes through the support rod 2 is rotatable in the socket 51, and the rotating shaft 2 52 is driven by a motor. A driving wheel 1 53 that is sleeved on the rotating shaft 2 52 is rotatable on the support rod 2, and the rotation of the rotating shaft 2 52 drives the driving wheel 1 53 to rotate, and a screw 54 is movably inserted on the support rod 2, and a moving mechanism 55 that drives the screw 54 to move by rotating the driving wheel 1 53 is provided on the support rod 2, and a sleeve 56 is rotatably provided on the screw 54, and a transmission gear 57 is provided at one end of the winding roller 3, and a transmission rack 58 that meshes with the transmission gear 57 is slidably provided on the support rod 2, and a connecting block 59 is provided on one side of the transmission rack 58, and the other end of the connecting block 59 is fixedly connected to the sleeve 56, and the thread directions of the screws 54 on the two support rods 2 are opposite.

[0031] Working principle of the rotating mechanism 5: When it is necessary to adjust the inclination of the preform, start the motor, the motor drives the rotating shaft 2 52 to rotate, the rotating shaft 2 52 drives the driving wheel 1 53 to rotate, the driving wheel 1 53 drives the screw 54 to move through the moving mechanism 55, the screw 54 drives the transmission rack 58 to move through the connecting block 59, the transmission rack 58 drives the transmission gear 57 to rotate, the transmission gear 57 drives the winding roller 3 to rotate, the winding roller 3 reels and relaxes the wire rope 31, because the two screw rods 54 have opposite thread directions, and thus when the driving wheel 1 53 rotates in the same direction, the two screw rods 54 move in opposite directions, so that one winding roller 3 relaxes the wire rope 31 and the other winding roller 3 reels the wire rope 31. When it is necessary to change the inclination direction, the motor can be reversed to change the inclination direction.

[0032] Combined with attachment Figure 1 , Attachment Figure 3 , Attachment Figure 4 As shown, the moving mechanism 55 includes a threaded sleeve 551 rotatably set on the support rod 2, the threaded sleeve 551 is threadedly connected to the screw 54, one end of the threaded sleeve 551 is provided with a driven wheel 552, and a transmission belt 553 is provided between the driving wheel 53 and the driven wheel 552.

[0033] The working principle of the moving mechanism 55 is as follows: the driving wheel 53 drives the driven wheel 552 to rotate through the transmission belt 553, and the driven wheel 552 drives the threaded sleeve 551 to rotate. Since the threaded sleeve 551 is rotatably arranged on the support rod 2, the rotation of the threaded sleeve 551 drives the screw rod 54 to rotate and move, and the movement of the screw rod 54 drives the sleeve 56 to move.

[0034] Combined with attachment Figure 1 , Attachment Figure 5 As shown, the support rod 2 is provided with fixed plates 42 arranged correspondingly on both sides, and the L-shaped plate 4 is provided with a rotating shaft 43 arranged correspondingly on both sides. The rotating shaft 43 is rotatably set on the fixed plate 42, and a torsion spring 44 is provided between the end of the rotating shaft 43 and the fixed plate 42.

[0035] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7As shown, the fixing mechanism 6 includes two L-shaped slides 61 slidably arranged on the bottom surface of the support rod 2, a spring 62 is provided between the L-shaped slide 61 and the support rod 2, a plurality of tooth grooves 63 are provided on the inner side of the suspension beam 1, one end of the L-shaped slide 61 is provided with a tooth block 64 that cooperates with the tooth groove 63, and the bottom surface of the support rod 2 is provided with a connecting plate 65, and a driven wheel 2 66 is rotatably provided on the connecting plate 65, and a driving block 67 that cooperates with the L-shaped slide 61 is provided on the driven wheel 2 66, and one side of the driving block 67 is an inclined surface, and the driving block 67 rotates to drive the L-shaped slide 61 to slide, and a driving wheel 2 68 is provided at one end of the rotating shaft 1 43, and a transmission belt 2 69 is provided between the driving wheel 2 68 and the driven wheel 2 66.

[0036] Working principle of fixing mechanism 6: in the initial state, torsion spring 1 44 and spring 1 62 are in a relaxed state. When the wire rope 31 is tightened, the wire rope 31 drives the L-shaped plate 4 to rotate, and the L-shaped plate 4 drives the rotating shaft 1 43 to rotate. The torsion spring 1 44 twists, and the rotating shaft 1 43 drives the driving wheel 2 68 to rotate. The driving wheel 2 68 drives the driven wheel 2 66 to rotate through the transmission belt 2 69. The driven wheel 2 66 drives the driving block 67 to rotate. The inclined surface on the driving block 67 contacts the L-shaped slide 61 and pushes the L-shaped slide 61 to slide. The spring 1 62 is compressed. When the wire rope 31 is in a vertical state, the tooth block 64 on the L-shaped slide 61 is inserted into the tooth groove 63. At this time, the support rod 2 is fixed.

[0037] Combined with attachment Figure 1 , Attachment Figure 8 , Attachment Figure 9 , Attachment Figure 10 As shown, the transmission mechanism 8 includes a fixed seat 81 arranged on the suspension beam 1 and corresponding to the splint 7, a torsion spring 2 82 is provided between the splint 7 and the suspension beam 1, a rotating shaft 83 correspondingly arranged on both sides of the fixed seat 81 is rotatably provided, a gear 1 84 is staggered on the rotating shaft 83, a rack 1 85 meshing with the gear 1 84 is slidably provided on the fixed seat 81, a connecting rod 86 is movably inserted at one end of the rack 1 85, a spring 2 is provided between the connecting rod 86 and the rack 1 85, a push block 87 abutting against the splint 7 is provided at one end of the connecting rod 86, a connecting frame 88 is slidably provided on the bottom surface of the suspension beam 1, the L-shaped plate 4 rotates to push the connecting frame 88 downward, and a linkage mechanism 9 is provided between the connecting frame 88 and the suspension beam 1, which drives the two rotating shafts 83 to rotate in opposite directions.

[0038] The working principle of the transmission mechanism 8: In the initial state, the torsion spring 2 82 and the spring 2 are in the relaxed state. When the prefabricated part is hoisted, the wire rope 31 is tightened, driving the L-shaped plate 4 to rotate, and the guide wheel 41 on the L-shaped plate 4 contacts the connecting frame 88. The L-shaped plate 4 continues to rotate to drive the connecting frame 88 to move downward, and the connecting frame 88 drives the two rotating shafts 83 to rotate in opposite directions through the linkage mechanism 9. The two rotating shafts 83 drive the gear 1 84 thereon to rotate, and the gear 1 84 drives the rack 1 85 to move, and the rack 1 85 drives the push block 87 to move, and the push block 87 pushes the splint 7 to rotate, and the torsion spring 2 82 twists. When the splint 7 contacts the prefabricated part, the rack 1 85 continues to drive the push block 87 to move, and the splint 7 no longer rotates, so that the rack 1 85 moves, the push block 87 does not move, and the spring 2 is compressed. When the wire rope 31 is in a vertical state, the connecting frame 88 stops moving, completing the fixation of the prefabricated part.

[0039] Combined with attachment Figure 1 , Attachment Figure 8 , Attachment Figure 9 , Attachment Figure 10 As shown, the linkage mechanism 9 includes a column 91 arranged on the connecting frame 88, the column 91 passes through the suspension beam 1, a return spring 92 is provided between one end of the column 91 and the suspension beam 1, a gear 2 93 is provided at one end of the rotating shaft 83, an extension frame 94 is provided on the column 91, and a rack 2 95 meshing with the gear 2 93 is provided on the extension frame 94.

[0040] Working principle of linkage mechanism 9: in the initial state, the reset spring 92 is in a relaxed state, the connecting frame 88 moves downward, driving the plug post 91 downward, the reset spring 92 is compressed, the plug post 91 drives the extension frame 94 downward, the extension frame 94 drives the rack 2 95 downward, and the rack 2 95 drives the two gears 2 93 to rotate in the opposite direction.

[0041] Combined with attachment Figure 1 , Attachment Figure 4 , Attachment Figure 7 As shown, the bottom surface of the support rod 2 is provided with a limiting mechanism 21 for limiting the position of the wire rope 31, and the limiting mechanism 21 includes a through hole 22 on the support rod 2, and a positioning wheel 23 correspondingly arranged on both sides is rotatably provided in the through hole 22, and the wire rope 31 is located between the two positioning wheels 23, and the guide wheel 41 is provided with an arc-shaped limiting rod 24 for limiting the position of the wire rope 31. The wire rope 31 is positioned by the two positioning wheels 23, and the wire rope 31 is placed in the guide wheel 41 by the arc-shaped limiting rod 24.

[0042] When the lifting device is in a state of vertical motion, the lifting device 1 is connected to the lifting equipment through the lifting lug 11, and then moved to the position of the prefabricated part to be lifted, and the prefabricated part is connected to the lifting device through the wire rope 31. Then the lifting equipment drives the lifting beam 1 to move up, the wire rope 31 is gradually tightened and drives the L-shaped plate 4 to rotate. At the same time, the wire rope 31 pushes the support rod 2 to slide, and the L-shaped plate 4 rotates to drive the fixing mechanism 6 and the transmission mechanism 8. When the wire rope 31 is vertical, the fixing mechanism 6 fixes the support rod 2 on the lifting beam 1, and the transmission mechanism 8 drives the four clamping plates 7 to clamp the prefabricated part, thereby effectively preventing the prefabricated part from shaking during the lifting process. At the same time, the wire rope 31 is in a vertical state, the force is evenly distributed, and the service life of the wire rope 31 is extended. Then the prefabricated part is lifted to the specified position. When the inclination needs to be adjusted, the motor is started, and the motor drives the rotating mechanism 5. The rotating mechanism 5 drives the two winding rollers 3 to reel and unwind respectively, so that the inclination of the prefabricated part can be adjusted, the prefabricated part can be aligned, and then the prefabricated part is fixed to complete the lifting.

[0043] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A cable hoisting device for arch bridge construction, comprising a hanging beam (1), wherein the hanging beam (1) is provided with a lifting lug (11), and characterized in that: The suspension beam (1) is provided with support rods (2) arranged correspondingly on both sides for sliding, a winding roller (3) is rotatably provided on the support rod (2), a steel wire rope (31) is wound around the winding roller (3), an L-shaped plate (4) is hinged on one side of the support rod (2), a guide wheel (41) is provided at one end of the L-shaped plate (4), the steel wire rope (31) passes through the support rod (2) and the guide wheel (41), a rotating mechanism (5) for controlling the rotation of the winding roller (3) is provided on the support rod (2), a fixing mechanism (6) for limiting the position of the support rod (2) is provided on one side of the support rod (2), four splints (7) are hinged on the suspension beam (1), and a transmission mechanism (8) is provided on the suspension beam (1) for rotating the L-shaped plate (4) to drive the four splints (7) to rotate; The support rod (2) is provided with fixed plates (42) arranged on both sides thereof, and the L-shaped plate (4) is provided with a rotating shaft (43) arranged on both sides thereof, the rotating shaft (43) is rotatably arranged on the fixed plates (42), and a torsion spring (44) is provided between the end of the rotating shaft (43) and the fixed plates (42); The fixing mechanism (6) includes two L-shaped slides (61) slidably arranged on the bottom surface of the support rod (2), a spring (62) is provided between the L-shaped slide (61) and the support rod (2), a plurality of tooth grooves (63) are provided on the inner side of the suspension beam (1), one end of the L-shaped slide (61) is provided with a tooth block (64) matched with the tooth groove (63), the bottom surface of the support rod (2) is provided with a connecting plate (65), a driven wheel (66) is rotatably provided on the connecting plate (65), and a driving block (67) matched with the L-shaped slide (61) is provided on the driven wheel (66), one side of the driving block (67) is an inclined surface, and the driving block (67) rotates to drive the L-shaped slide (61) to slide, and a driving wheel (68) is provided at one end of the rotating shaft (43), and a transmission belt (69) is provided between the driving wheel (68) and the driven wheel (66). The lifting and ascending process tightens the steel wire rope (31), which drives the L-shaped plate (4) to rotate. The rotation of the L-shaped plate (4) drives the fixing mechanism (6) and the transmission mechanism (8). The transmission mechanism (8) drives the clamping plate (7) to clamp the prefabricated part. The fixing mechanism (6) fixes the support rod (2) on the hanging beam (1). The rotating mechanism (5) controls the retraction and extension of the steel wire rope (31) to change the inclination of the prefabricated part.

2. The cable hoisting equipment for arch bridge construction according to claim 1, characterized in that: The rotating mechanism (5) includes a socket (51) on the hanging beam (1), the support rod (2) is inserted into the socket (51), a rotating shaft (52) penetrating the support rod (2) is rotatably provided in the socket (51), a driving wheel (53) sleeved on the rotating shaft (52) is rotatably provided on the support rod (2), the rotating shaft (52) drives the driving wheel (53) to rotate, a screw (54) is movably inserted on the support rod (2), a moving mechanism (55) is provided on the support rod (2) for driving the screw (54) to move by rotating the driving wheel (53), a sleeve (56) is rotatably provided on the screw (54), a transmission gear (57) is provided at one end of the winding roller (3), a transmission rack (58) meshing with the transmission gear (57) is slidably provided on the support rod (2), a connecting block (59) is provided on one side of the transmission rack (58), and the other end of the connecting block (59) is fixedly connected to the sleeve (56).

3. The cable hoisting equipment for arch bridge construction according to claim 2, characterized in that: The moving mechanism (55) includes a threaded sleeve (551) rotatably arranged on the support rod (2), the threaded sleeve (551) being threadedly connected to the screw rod (54), a driven wheel (552) being provided at one end of the threaded sleeve (551), and a transmission belt (553) being provided between the driving wheel (53) and the driven wheel (552).

4. The cable hoisting equipment for arch bridge construction according to claim 1, characterized in that: The transmission mechanism (8) includes a fixed seat (81) arranged on the suspension beam (1) and corresponding to the splint (7), a torsion spring (82) is provided between the splint (7) and the suspension beam (1), a rotating shaft (83) arranged correspondingly on both sides is rotatably provided on the fixed seat (81), a gear (84) is staggered on the rotating shaft (83), a rack (85) meshing with the gear (84) is slidably provided on the fixed seat (81), a connecting rod (86) is movably inserted at one end of the rack (85), a spring (86) is provided between the connecting rod (86) and the rack (85), a push block (87) abutting against the splint (7) is provided at one end of the connecting rod (86), a connecting frame (88) is slidably provided on the bottom surface of the suspension beam (1), the L-shaped plate (4) rotates to push the connecting frame (88) downward, and a linkage mechanism (9) is provided between the connecting frame (88) and the suspension beam (1) so that the connecting frame (88) moves downward and drives the two rotating shafts (83) to rotate in opposite directions.

5. The cable hoisting equipment for arch bridge construction according to claim 4, characterized in that: The linkage mechanism (9) includes an insertion column (91) arranged on the connecting frame (88), the insertion column (91) passes through the suspension beam (1), a return spring (92) is provided between one end of the insertion column (91) and the suspension beam (1), a gear 2 (93) is provided at one end of the rotating shaft (83), an extension frame (94) is provided on the insertion column (91), and a rack 2 (95) meshing with the gear 2 (93) is provided on the extension frame (94).

6. The cable hoisting equipment for arch bridge construction according to claim 1, characterized in that: The bottom surface of the support rod (2) is provided with a limiting mechanism (21) for limiting the position of the steel wire rope (31), the limiting mechanism (21) includes a through hole (22) on the support rod (2), and positioning wheels (23) arranged on both sides thereof are rotatably provided in the through hole (22), the steel wire rope (31) is located between the two positioning wheels (23), and the guide wheel (41) is provided with an arc-shaped limiting rod (24) for limiting the position of the steel wire rope (31).

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