Arc-shaped formwork pulling device with automatic positioning function

Abstract

The application discloses an arc-shaped formwork traction device with an automatic positioning function, relates to the technical field of bridge construction, and comprises a crane, a traction device, a first steel cable and a second steel cable. The crane can drive the traction device to move, so that the traction device moves to a specified position. The traction device can clamp the arc-shaped formwork. When the arc-shaped formwork is driven to move in the air, the center of gravity of the arc-shaped formwork can be automatically adjusted. When the arc-shaped formwork is lifted, the arc-shaped formwork can be kept in a horizontal state, so that the arc-shaped formwork is conveniently moved to the specified position, the arc-shaped formwork is prevented from colliding with a steel reinforcement framework and other preinstalled parts due to deviation during movement, and damage to the steel reinforcement framework and other preinstalled parts is prevented. Meanwhile, the arc-shaped formwork can be automatically positioned. When a pier is cast, the strength of each part of the pier is ensured to be uniform, and the service life of the pier is prolonged. The first steel cable can drive the traction device to clamp and loosen the arc-shaped formwork. The second steel cable can drive the traction device to ascend and descend.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction, in particular to an arc-shaped formwork traction device with automatic positioning function. BACKGROUND

[0002] Bridge, generally refers to the erection on rivers, lakes and seas, so that vehicles and pedestrians can pass smoothly constructed, bridge as an important traffic facilities across the natural obstacles, history has experienced from the simple wooden bridge, stone bridge to the evolution of modern reinforced concrete bridge, pier as one of the main load-bearing structure of the bridge, its construction quality and efficiency of the stability, safety and durability of the entire bridge structure is very important, pier formwork pouring technology has experienced continuous development and improvement, aims to improve the construction precision, reduce construction time, improve construction quality, and ensure the safety of the structure, in the pouring of the pier, first install the reinforcement cage, then use the crane to hoist the arc-shaped formwork into the outside of the reinforcement cage, and then pour the inside of the formwork with concrete.

[0003] The prior art has defects: when the crane hoists the arc-shaped formwork into the outside of the reinforcement cage, the arc-shaped formwork will deviate in the air, and it is easy to collide with the reinforcement cage and other pre-installed parts during movement, resulting in damage to the reinforcement cage and other pre-installed parts; when the arc-shaped formwork is placed, it is difficult to position the placement position of the arc-shaped formwork, resulting in deviation of the placement position, so that the strength of each part of the pier is uneven, affecting the service life of the pier. SUMMARY

[0004] The purpose of the present application is to provide an arc-shaped formwork traction device with automatic positioning function to solve the problems in the prior art.

[0005] In order to achieve the above object, the present application provides the following technical scheme: the arc-shaped template traction device comprises a crane, a first driving motor, a second driving motor, a first winding wheel, a second winding wheel, a first steel cable and a second steel cable are installed on the machine body of the crane, the output end of the first driving motor is installed on the first winding wheel, the second driving motor is installed on the second winding wheel, one end of the first steel cable is installed on the first winding wheel, the other end of the first steel cable is installed with a traction device, one end of the second steel cable is installed on the second winding wheel, the other end of the second steel cable is installed on the traction device, and the first driving motor and the second driving motor are connected to a control system. In work, the second driving motor is started by manually operating the control system, the second winding wheel is rotated by the second driving motor, the second steel cable on the second winding wheel drives the traction device to descend, when the clamping device of the traction device descends to the height of the arc-shaped template, the first driving motor is started, the first winding wheel is rotated by the first driving motor, the first steel cable on the first winding wheel drives the sliding block to move downward, the sliding block drives the clamping device to clamp the arc-shaped template, the second driving motor is started, the second winding wheel is rotated by the second driving motor, the second steel cable on the second winding wheel drives the traction device to ascend, when the arc-shaped template moves above the reinforced framework, the second driving motor is started, the second winding wheel is rotated by the second driving motor, the second steel cable on the second winding wheel drives the traction device to descend, when the automatic positioning device enters the inside of the reinforced framework, the second driving motor is stopped, the position of the arc-shaped template is adjusted by the automatic positioning device, when the axis of the arc-shaped template and the reinforced framework is in the same straight line, the second driving motor is started, the arc-shaped template is placed on the ground, the first driving motor is started, the first winding wheel is rotated by the first driving motor, the first steel cable on the first winding wheel drives the sliding block to move upward, and the sliding block drives the clamping device to release the arc-shaped template.

[0006] The traction device comprises a fixed block, one end of the second steel cable is installed on the fixed block, a through groove is formed in one side of the fixed block, a sliding block is slidably connected in the through groove, a clamping device is rotatably connected to one side of the sliding block, a connecting plate is installed on one side of the fixed block, one end of the connecting plate is connected with an inclined plate, one end of the inclined plate is connected with a horizontal plate, an anti-deviation device is installed on one end of the horizontal plate, an automatic positioning device is installed between the two horizontal plates, and the clamping device slides on the anti-deviation device. The sliding block is lifted and lowered in the through groove of the fixed block by manually operating the control system, the sliding block drives the clamping device to slide on the anti-deviation device, so that the clamping device clamps and releases the arc-shaped template, when the automatic positioning device moves into the inside of the reinforced framework, the automatic positioning device is started to adjust the position of the arc-shaped template until the axis of the arc-shaped template and the reinforced framework is in the same straight line.

[0007] The sliding block comprises a cylinder, one end of the cylinder is connected with a first limiting block, one end of the first steel cable is mounted on the first limiting block, the other end of the cylinder is mounted with a second limiting block, the outer side of the second limiting block is connected with a first mounting block, a rotating shaft one is mounted between the two first mounting blocks, and the clamping device rotates on the rotating shaft one. When the clamping device is lowered to the height of the arc-shaped template, the first driving motor is controlled to start, the first motor drives the first winding wheel to rotate, the first winding wheel drives the first steel cable to move upwards, the first steel cable drives the first limiting block to move, the first limiting block drives the cylinder to move, the cylinder drives the second limiting block to move, the second limiting block drives the clamping device to slide on the anti-deviation device in opposite directions, and the arc-shaped template is clamped. After the arc-shaped template is placed on the ground, the first driving motor is controlled to start, the first motor drives the first winding wheel to rotate, the first winding wheel drives the first steel cable to move downwards, the first steel cable drives the first limiting block to move, the first limiting block drives the cylinder to move, the cylinder drives the second limiting block to move, the second limiting block drives the clamping device to slide on the anti-deviation device in opposite directions, and the arc-shaped template is loosened.

[0008] The anti-deviation device comprises a long plate, the long plate is connected at one end of the horizontal plate, the long plate is connected with a second mounting block, a rotating shaft two is mounted between the two second mounting blocks, a shaft is rotatably connected to the rotating shaft two, a connecting block is rotatably connected to one side of the shaft, a push rod is rotatably connected to one side of the shaft, one end of the connecting block is connected with a track, one end of the track is connected with a third limiting block, one side of the track is connected with a fixed plate, one end of the fixed plate is connected to the automatic positioning device. When the arc-shaped template has a tendency to deviate in the air, the clamping device drives the track to rotate counterclockwise, the track drives the connecting block on the pressing side to move towards the long plate, the connecting block on the pressing side drives the shaft on the pressing side to rotate counterclockwise, the shaft on the pressing side drives the push rod to move, the push rod drives the shaft on the lifting side to rotate counterclockwise, the shaft on the lifting side drives the connecting block on the lifting side to move towards the long plate, the connecting block on the lifting side drives the long plate to rotate clockwise, and the long plate drives the clamping device to rotate clockwise, so that the arc-shaped template remains horizontal.

[0009] The automatic positioning device comprises a first straight plate and a second straight plate, one end of the first straight plate is connected to the horizontal plate, a pneumatic cylinder is mounted on one side of the first straight plate, a centering device is mounted on the cylinder rod of the pneumatic cylinder, one end of the second straight plate is connected to the long plate, an installation groove is formed in one side of the second straight plate, and a centering device is mounted in the installation groove, and the pneumatic cylinder is connected to the control system. When the automatic positioning device moves to the inside of the steel reinforcement framework, the cylinder rod of the pneumatic cylinder is manually controlled to extend, the cylinder rod drives the centering device to center the steel reinforcement framework, when the centering is completed, the cylinder rod of the pneumatic cylinder is controlled to retract, and the cylinder rod drives the centering device to return to the initial position.

[0010] The centering device comprises a disc, a sliding plate, the disc is installed in the installation groove of the second straight plate, the disc is provided with a sliding groove, a groove and a sliding rail, the middle of the disc is slidably connected with a cylinder, the cylinder is coaxial with the disc, the outer surface of the cylinder is provided with a spiral block, the spiral block slides in the sliding groove, one side of the cylinder is connected with the cylinder rod of the air cylinder, one side of the sliding plate slides on the groove, the spiral block slides on the spiral groove of the sliding plate, one side of the sliding plate is provided with an inclined groove, the sliding rail is slidably connected with a U-shaped block, the U-shaped block slides in the inclined groove, one side of the U-shaped block is installed with a pressure sensor, and the pressure sensor is connected with the control system. When the automatic positioning device moves to the inside of the steel reinforcement framework, the cylinder rod of the air cylinder is extended, the cylinder rod drives the cylinder to advance, the spiral block on the cylinder slides in the spiral groove of the sliding plate in the direction away from the air cylinder, the sliding plate slides in the groove in the direction close to the edge of the disc, the inclined groove on the sliding plate moves in the direction close to the edge of the disc, and the U-shaped block slides along the sliding rail in the direction away from the center of the disc.

[0011] The clamping device comprises a short plate, one side of the short plate is connected with a third mounting block, two third mounting blocks are installed with a rotating shaft three, the rotating shaft three is rotatably connected with a connecting rod, the other end of the connecting rod is rotatable on a rotating shaft two, one end of the short plate is connected with a sliding groove, the sliding groove slides on a track, one side of the short plate is connected with an L-shaped block, and one end of the L-shaped block is connected with an arc-shaped clamp. When the sliding block moves upwards, the sliding block drives the connecting rod to rotate, the connecting rod drives the rotating shaft three to move away from the third limiting block, the rotating shaft three drives the third mounting block to move, the third mounting block drives the short plate to move, the short plate drives the sliding groove to slide on the track, the short plate drives the L-shaped block to move, the L-shaped block drives the arc-shaped clamp to move, and the arc-shaped template is clamped.

[0012] Compared with the prior art, the beneficial effects of the present application are:

[0013] 1、The present application adopts the anti-deviation device, automatically adjusts the gravity center of the arc-shaped template, keeps the horizontal state when the arc-shaped template is lifted, facilitates the arc-shaped template to reach the specified position, avoids colliding with the steel reinforcement framework and other preinstalled parts due to deviation during movement, and prevents damage to the steel reinforcement framework and other preinstalled parts.

[0014] 2、The automatic positioning device is adopted, the center of the reinforcing cage and the arc-shaped formwork is automatically aligned, the axis of the reinforcing cage and the arc-shaped formwork is on the same straight line, when the bridge pier is poured, the strength of each part of the bridge pier is uniform, and the service life of the bridge pier is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the perspective view of the arc-shaped formwork traction device of the present application;

[0016] Figure 2 It is the perspective view of the traction device of the present application;

[0017] Figure 3 It is the perspective view of the sliding block of the present application;

[0018] Figure 4 It is the perspective view of the anti-deviation device of the present application;

[0019] Figure 5 It is the perspective view of the automatic positioning device of the present application;

[0020] Figure 6 It is the perspective view of the centering device of the present application;

[0021] Figure 7 It is the perspective view of the cylinder of the present application;

[0022] Figure 8 It is the perspective view of the clamping device of the present application.

[0023] In the figure: 1, crane; 2, traction device; 21, fixed block; 22, sliding block; 221, cylinder; 222, first limiting block; 223, second limiting block; 224, first mounting block; 23, connecting plate; 24, inclined plate; 25, anti-deviation device; 251, long plate; 252, second mounting block; 253, inch shaft; 254, push rod; 255, fixed plate; 256, track; 257, third limiting block; 258, connecting block; 26, automatic positioning device; 261, first straight plate; 262, air cylinder; 263, centering device; 2631, disc; 2632, cylinder; 2633, U-shaped block; 2634, sliding plate; 2635, inclined chute; 2636, spiral block; 264, second straight plate; 27, clamping device; 271, connecting rod; 272, short plate; 273, sliding groove; 274, third mounting block; 275, L-shaped block; 276, arc-shaped clamp; 28, cross plate; 3, first steel cable; 4, second steel cable. DETAILED DESCRIPTION

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example: Figures 1-8 As shown, the present invention provides a technical solution in which an arc-shaped template traction device includes a crane 1. A first drive motor, a second drive motor, a first winding wheel, a second winding wheel, a first steel cable 3, and a second steel cable 4 are mounted on the body of the crane 1. The output end of the first drive motor is mounted on the first winding wheel, and the second drive motor is mounted on the second winding wheel. One end of the first steel cable 3 is mounted on the first winding wheel, and the other end of the first steel cable 3 is mounted on a traction device 2. One end of the second steel cable 4 is mounted on the second winding wheel, and the other end of the second steel cable 4 is mounted on the traction device 2. The first drive motor and the second drive motor are connected to a control system.

[0026] During operation, the manual control system starts the second drive motor, which rotates the second winding wheel. The second steel cable 4 on the second winding wheel lowers the traction device 2. When the clamping device 27 of the traction device 2 reaches the height of the curved template, the first drive motor starts, rotating the first winding wheel. The first steel cable 3 on the first winding wheel moves the sliding block 22 downward, causing the clamping device 27 to clamp the curved template. The second drive motor then starts, rotating the second winding wheel. The second steel cable 4 on the second winding wheel raises the traction device 2. When the curved template moves to the height of the reinforcing steel frame... When the template is in the upper position, the second drive motor is started, which drives the second winding wheel to rotate. The second steel cable 4 on the second winding wheel drives the traction device 2 to descend. When the automatic positioning device 26 enters the interior of the steel reinforcement cage, the second drive motor is stopped, and the automatic positioning device 26 is adjusted to position the arc-shaped template. When the axis of the arc-shaped template and the steel reinforcement cage are on the same straight line, the second drive motor is started, and the arc-shaped template is placed on the ground. The first drive motor is started, which drives the first winding wheel to rotate. The first steel cable 3 on the first winding wheel drives the sliding block 22 to move upward, and the sliding block 22 drives the clamping device 27 to release the arc-shaped template.

[0027] The traction device 2 comprises a fixed block 21, one end of the second steel cable 4 is installed on the fixed block 21, a through slot is formed on one side of the fixed block 21, a sliding block 22 is slidably connected in the through slot, a clamping device 27 is rotatably connected on one side of the sliding block 22, a connecting plate 23 is installed on one side of the fixed block 21, an inclined plate 24 is connected on one end of the connecting plate 23, a horizontal plate 28 is connected on one end of the inclined plate 24, an anti-deviation device 25 is installed on one end of the horizontal plate 28, an automatic positioning device 26 is installed between the two horizontal plates 28, and the clamping device 27 slides on the anti-deviation device 25. The manual operation control system controls the sliding block 22 to ascend and descend in the through slot of the fixed block 21, the sliding block 22 drives the clamping device 27 to slide on the anti-deviation device 25, so that the clamping device 27 clamps and releases the arc-shaped formwork, when the automatic positioning device 26 moves to the inside of the steel reinforcement framework, the automatic positioning device 26 is controlled to start, the position of the arc-shaped formwork is adjusted, until the arc-shaped formwork and the axis of the steel reinforcement framework are on the same straight line.

[0028] The sliding block 22 comprises a cylinder 221, one end of the cylinder 221 is connected with a first limiting block 222, one end of the first steel cable 3 is installed on the first limiting block 222, the other end of the cylinder 221 is installed with a second limiting block 223, the outer side of the second limiting block 223 is connected with a first mounting block 224, a rotating shaft I is installed between the two first mounting blocks 224, and the clamping device 27 rotates on the rotating shaft I.

[0029] When the clamping device 27 descends to the height of the arc-shaped formwork, the first driving motor is controlled to start, the first motor drives the first winding wheel to rotate, the first winding wheel drives the first steel cable 3 to move upwards, the first steel cable 3 drives the first limiting block 222 to move, the first limiting block 222 drives the cylinder 221 to move, the cylinder 221 drives the second limiting block 223 to move, the second limiting block 223 drives the clamping device 27 to slide on the anti-deviation device 25, and the arc-shaped formwork is clamped, after the arc-shaped formwork is placed on the ground, the first driving motor is controlled to start, the first motor drives the first winding wheel to rotate, the first winding wheel drives the first steel cable 3 to move downwards, the first steel cable 3 drives the first limiting block 222 to move, the first limiting block 222 drives the cylinder 221 to move, the cylinder 221 drives the second limiting block 223 to move, the second limiting block 223 drives the clamping device 27 to slide on the anti-deviation device 25, and the arc-shaped formwork is released.

[0030] The anti-deviation device 25 comprises a long plate 251 connected at one end of the horizontal plate 28, second mounting blocks 252 connected on the long plate 251, a rotating shaft two mounted between the two second mounting blocks 252, a inch shaft 253 rotationally connected on the rotating shaft two, a connecting block 258 rotationally connected on one side of the inch shaft 253, a push rod 254 rotationally connected on one side of the inch shaft 253, a track 256 connected at one end of the connecting block 258, a third limiting block 257 connected at one end of the track 256, a fixed plate 255 connected at one end of the track 256, and the fixed plate 255 is connected on the automatic positioning device 26.

[0031] When the arc-shaped formwork has a deviation trend in the air, the clamping device 27 drives the track 256 to rotate counterclockwise, the track 256 drives the connecting block 258 on the pressing side to move towards the long plate 251, the connecting block 258 on the pressing side drives the inch shaft 253 on the pressing side to rotate counterclockwise, the inch shaft 253 on the pressing side drives the push rod 254 to move, the push rod 254 drives the inch shaft 253 on the lifting side to rotate counterclockwise, the inch shaft 253 on the lifting side drives the connecting block 258 on the lifting side to move towards the long plate 251, the connecting block 258 on the lifting side drives the long plate 251 to rotate clockwise, and the long plate 251 drives the clamping device 27 to rotate clockwise, so that the arc-shaped formwork is kept horizontal.

[0032] The automatic positioning device 26 comprises a first straight plate 261, a second straight plate 264, one end of the first straight plate 261 is connected on the horizontal plate 28, a cylinder 262 is mounted on one side of the first straight plate 261, a centering device 263 is mounted on a cylinder rod of the cylinder 262, one end of the second straight plate 264 is connected on the long plate 251, an installation groove is formed on one side of the second straight plate 264, the centering device 263 is mounted in the installation groove, and the cylinder 262 is connected to a control system. When the automatic positioning device 26 moves to the inside of the steel reinforcement framework, a manual operation control system controls the cylinder rod of the cylinder 262 to extend, the cylinder rod drives the centering device 263 to center the steel reinforcement framework, when the centering is completed, the cylinder rod of the cylinder 262 is retracted, and the cylinder rod drives the centering device 263 to return to the initial position.

[0033] The centering device 263 comprises a disc 2631, a sliding plate 2634, the disc 2631 is installed in the installation groove of the second straight plate 264, the disc 2631 is provided with a sliding groove, a groove and a sliding rail, the middle of the disc 2631 is slidingly connected with a cylinder 2632, the cylinder 2632 is coaxial with the disc 2631, the outer surface of the cylinder 2632 is provided with a spiral block 2636, the spiral block 2636 slides in the sliding groove, one side of the cylinder 2632 is connected with the cylinder rod of the air cylinder 262, one side of the sliding plate 2634 slides on the groove, the spiral block 2636 slides on the spiral groove of the sliding plate 2634, one side of the sliding plate 2634 is provided with an inclined groove 2635, the sliding rail is slidingly connected with a U-shaped block 2633, the U-shaped block 2633 slides in the inclined groove 2635, one side of the U-shaped block 2633 is installed with a pressure sensor, and the pressure sensor is connected to the control system.

[0034] When the automatic positioning device 26 moves to the inside of the steel reinforcement framework, the cylinder rod of the air cylinder 262 is extended, the cylinder rod drives the cylinder 2632 to advance, the spiral block 2636 on the cylinder 2632 slides in the spiral groove of the sliding plate 2634 in the direction away from the air cylinder 262, drives the sliding plate 2634 to slide in the groove in the direction close to the edge of the disc 2631, the inclined groove 2635 on the sliding plate 2634 moves in the direction close to the edge of the disc 2631, drives the U-shaped block 2633 to slide along the sliding rail in the direction away from the center of the disc 2631, when the pressure sensor on one or two U-shaped blocks 2633 contacts the steel reinforcement framework, the control crane 1 moves the traction device 2 until the inner wall of the steel reinforcement framework contacts the three pressure sensors at the same time, the control air cylinder 262 stops moving, and the centering is completed.

[0035] The clamping device 27 comprises a short plate 272, one side of the short plate 272 is connected with a third mounting block 274, two third mounting blocks 274 are installed with a rotating shaft three, the rotating shaft three is rotatably connected with a connecting rod 271, the other end of the connecting rod 271 is rotatable on the rotating shaft two, one end of the short plate 272 is connected with a sliding groove 273, the sliding groove 273 slides on the track 256, one side of the short plate 272 is connected with an L-shaped block 275, one end of the L-shaped block 275 is connected with an arc-shaped clamp 276. When the sliding block 22 moves upward, the sliding block 22 drives the connecting rod 271 to rotate, the connecting rod 271 drives the rotating shaft three to move away from the third limiting block 257, the rotating shaft three drives the third mounting block 274 to move, the third mounting block 274 drives the short plate 272 to move, the short plate 272 drives the sliding groove 273 to slide on the track 256, the short plate 272 drives the L-shaped block 275 to move, the L-shaped block 275 drives the arc-shaped clamp 276 to move, and the arc-shaped template is clamped.

[0036] When the sliding block 22 moves downward, the sliding block 22 drives the connecting rod 271 to rotate, the connecting rod 271 drives the rotating shaft three to move in the direction close to the third limiting block 257, the rotating shaft three drives the third mounting block 274 to move, the third mounting block 274 drives the short plate 272 to move, the short plate 272 drives the sliding groove 273 to slide on the track 256, the short plate 272 drives the L-shaped block 275 to move, the L-shaped block 275 drives the arc-shaped clamp 276 to move, and the arc-shaped template is loosened.

[0037] The working principle of the application is as follows:

[0038] In operation, the control system is manually operated to control the second driving motor to start, the second driving motor drives the second winding wheel to rotate, the second steel cable 4 on the second winding wheel drives the traction device 2 to descend, when the clamping device 27 of the traction device 2 descends to the height of the arc-shaped template, the first driving motor is controlled to start, the first motor drives the first winding wheel to rotate, the first winding wheel drives the first steel cable 3 to move upward, the first steel cable 3 drives the first limiting block 222 to move, the first limiting block 222 drives the cylinder 221 to move, the cylinder 221 drives the second limiting block 223 to move, the second limiting block 223 drives the rotating shaft two to move, the rotating shaft two drives the connecting rod 271 to rotate, the connecting rod 271 drives the rotating shaft three to move in the direction away from the third limiting block 257, the rotating shaft three drives the third mounting block 274 to move, the third mounting block 274 drives the short plate 272 to move, the short plate 272 drives the sliding groove 273 to slide on the track 256, the short plate 272 drives the L-shaped block 275 to move, the L-shaped block 275 drives the arc-shaped clamp 276 to move, and the arc-shaped template is clamped.

[0039] When the arc-shaped template is clamped, the second driving motor is controlled to start, the second driving motor drives the second winding wheel to rotate, the second steel cable 4 on the second winding wheel drives the traction device 2 to ascend, when the arc-shaped template deviates in the air, the track 256 rotates counterclockwise, the track 256 drives the connecting block 258 on the pressing side to move in the direction close to the long plate 251, the connecting block 258 on the pressing side drives the inch shaft 253 on the pressing side to rotate counterclockwise, the inch shaft 253 on the pressing side drives the push rod 254 to move, the push rod 254 drives the inch shaft 253 on the lifting side to rotate counterclockwise, the inch shaft 253 on the lifting side drives the connecting block 258 on the lifting side to move in the direction close to the long plate 251, the connecting block 258 on the lifting side drives the long plate 251 to rotate clockwise, and the long plate 251 drives the clamping device 27 to rotate clockwise, so that the arc-shaped template is kept horizontal.

[0040] When the arc-shaped formwork moves above the reinforcement cage, the second driving motor is controlled to start, the second driving motor drives the second winding wheel to rotate, the second cable 4 on the second winding wheel drives the traction device 2 to descend, when the automatic positioning device 26 enters the inside of the reinforcement cage, the cylinder rod of the air cylinder 262 is controlled to extend, the cylinder rod drives the cylinder 2632 to advance, the spiral block 2636 on the cylinder 2632 slides in the spiral groove of the sliding plate 2634 in the direction away from the air cylinder 262, drives the sliding plate 2634 to slide in the recess in the direction close to the edge of the disc 2631, the inclined slot 2635 on the sliding plate 2634 moves in the direction close to the edge of the disc 2631, drives the U-shaped block 2633 to slide along the slide rail in the direction away from the center of the disc 2631, when the pressure sensor on one or two U-shaped blocks 2633 contacts the reinforcement cage, the crane 1 is controlled to move the traction device 2, until the inner wall of the reinforcement cage contacts the three pressure sensors at the same time, the air cylinder 262 is controlled to stop moving, and the centering is completed.

[0041] When the axis of the arc-shaped formwork and the reinforcement cage are in the same straight line, the second driving motor is controlled to start, the arc-shaped formwork is placed on the ground, the first driving motor is controlled to start, the first motor drives the first winding wheel to rotate, the first winding wheel drives the first cable 3 to move downward, the first cable 3 drives the first limiting block 222 to move, the first limiting block 222 drives the cylinder 221 to move, the cylinder 221 drives the second limiting block 223 to move, the second limiting block 223 drives the connecting rod 271 to rotate, the connecting rod 271 drives the rotating shaft three to move in the direction close to the third limiting block 257, the rotating shaft three drives the third mounting block 274 to move, the third mounting block 274 drives the short plate 272 to move, the short plate 272 drives the sliding groove 273 to slide on the track 256, the short plate 272 drives the L-shaped block 275 to move, the L-shaped block 275 drives the arc-shaped clamp 276 to move, the arc-shaped formwork is loosened, and the crane 1 is controlled to move the traction device 2 to the initial position.

[0042] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claim concerned.

Claims

1. A curved formwork pulling device with automatic positioning function, characterized in that: The arc-shaped template traction device comprises a crane (1), a first driving motor, a second driving motor, a first winding wheel, a second winding wheel, a first steel cable (3) and a second steel cable (4) are installed on the machine body of the crane (1), the output end of the first driving motor is installed on the first winding wheel, the second driving motor is installed on the second winding wheel, one end of the first steel cable (3) is installed on the first winding wheel, the other end of the first steel cable (3) is installed with a traction device (2), one end of the second steel cable (4) is installed on the second winding wheel, the other end of the second steel cable (4) is installed on the traction device (2), and the first driving motor and the second driving motor are connected to a control system; The traction device (2) comprises a fixed block (21), one end of the second steel cable (4) is installed on the fixed block (21), a through groove is formed in one side of the fixed block (21), a sliding block (22) is slidably connected in the through groove, a clamping device (27) is rotatably connected to one side of the sliding block (22), a connecting plate (23) is installed on one side of the fixed block (21), one end of the connecting plate (23) is connected with an inclined plate (24), one end of the inclined plate (24) is connected with a horizontal plate (28), an anti-deviation device (25) is installed on one end of the horizontal plate (28), and an automatic positioning device (26) is installed between the two horizontal plates (28); The anti-deviation device (25) comprises a long plate (251), the long plate (251) is connected to one end of the horizontal plate (28), a second mounting block (252) is connected to the long plate (251), a rotating shaft two is installed between the second mounting blocks (252) at both ends, a shaft (253) is rotatably connected to the rotating shaft two, a connecting block (258) is rotatably connected to one side of the shaft (253), a same push rod (254) is rotatably connected to the other side of the shaft (253), a rail (256) is connected to the other end of the connecting block (258), a third limiting block (257) is connected to one end of the rail (256), a fixed plate (255) is connected to one side of the rail (256), one end of the fixed plate (255) is connected to the automatic positioning device (26), and the clamping device (27) slides on the rail (256); The automatic positioning device (26) comprises a first straight plate (261) and a second straight plate (264), one end of the first straight plate (261) is connected to the horizontal plate (28), a pneumatic cylinder (262) is installed on one side of the first straight plate (261), a centering device (263) is installed on the cylinder rod of the pneumatic cylinder (262), one end of the second straight plate (264) is connected to the long plate (251), an installation groove is formed in one side of the second straight plate (264), and the centering device (263) is installed in the installation groove, and the pneumatic cylinder (262) is connected to a control system.

2. The arc-shaped template pulling device with automatic positioning function according to claim 1, characterized in that: The sliding block (22) comprises a cylinder (221), one end of the cylinder (221) is connected with a first limiting block (222), one end of the first steel cable (3) is installed on the first limiting block (222), the other end of the cylinder (221) is installed with a second limiting block (223), the outer side of the second limiting block (223) is connected with a first mounting block (224), a rotating shaft one is installed between the two first mounting blocks (224), and the clamping device (27) rotates on the rotating shaft one.

3. The arc-shaped template pulling device with automatic positioning function according to claim 1, characterized in that: The automatic positioning device (26) comprises a first straight plate (261) and a second straight plate (264), one end of the first straight plate (261) is connected to the horizontal plate (28), a cylinder (262) is installed on one side of the first straight plate (261), a centering device (263) is installed on the cylinder rod of the cylinder (262), one end of the second straight plate (264) is connected to the long plate (251), an installation groove is formed in one side of the second straight plate (264), and the centering device (263) is installed in the installation groove, and the cylinder (262) is connected to the control system.

4. The arc-shaped template pulling device with automatic positioning function according to claim 1, characterized in that: The centering device (263) comprises a disc (2631) and a sliding plate (2634), the disc (2631) is installed in the installation groove of the second straight plate (264), the disc (2631) is provided with a sliding groove, a groove and a sliding rail, a cylinder (2632) is slidably connected in the middle of the disc (2631), the cylinder (2632) is coaxial with the disc (2631), a spiral block (2636) is arranged on the outer surface of the cylinder (2632), the spiral block (2636) slides in the sliding groove, one side of the cylinder (2632) is connected to the cylinder rod of the cylinder (262), one side of the sliding plate (2634) slides in the groove, the spiral block (2636) slides in the spiral groove of the sliding plate (2634), one side of the sliding plate (2634) is provided with an inclined groove (2635), a U-shaped block (2633) is slidably connected on the sliding rail, the U-shaped block (2633) slides in the inclined groove (2635), a pressure sensor is installed on the outer side of the U-shaped block (2633), and the pressure sensor is connected to the control system.

5. The arc-shaped template pulling device with automatic positioning function according to claim 4, characterized in that: The clamping device (27) comprises a short plate (272), one side of the short plate (272) is connected with a third mounting block (274), a rotating shaft three is installed between the two third mounting blocks (274), a connecting rod (271) is rotatably connected to the rotating shaft three, the other end of the connecting rod (271) is rotatably connected to the rotating shaft two, one end of the short plate (272) is connected with a sliding groove (273), the sliding groove (273) slides on the track (256), one side of the short plate (272) is connected with an L-shaped block (275), one end of the L-shaped block (275) is connected with an arc-shaped clamp (276).

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