Intelligent material placing machine for tower crane construction and working method thereof

Abstract

The present invention relates to the field of construction equipment and discloses an intelligent material placing machine for a tower building machine and a working method thereof, comprising a base fixed on the top of the tower building machine, and also comprising a material placing mechanism, a support arm, a turntable, a conveying pipe, a swing arm and a counterweight box. In the present invention, when the hydraulic device pulls the guide pipe to rotate left, the pulling plate structure pulls the connecting rod to slide in the direction of the first gear plate in the track plate, and then the lower end of the support rod slides downward in the track bar to support the guide pipe, thereby supporting the guide pipe rotating left, reducing the influence of the gravity of the guide pipe on the hydraulic device, and avoiding the hydraulic device being easily damaged due to excessive load, and the impact force of concrete in the circulation pipe is converted into a stable supporting force of the buffer structure on the circulation pipe, reducing the shaking of the circulation pipe under the impact force of concrete, improving the stability of the circulation pipe in pouring concrete, and the stability of the discharging structure is enhanced, which can avoid the shaking caused by the instability of the guide pipe and reduce the load on the hydraulic device.

Description

Technical Field

[0001] The present invention relates to the field of building construction equipment, and in particular to an intelligent material placing machine of a tower crane and a working method thereof. Background Art

[0002] The plane position of the concrete placing boom determines its plane distribution range. Usually, the concrete placing boom is arranged in the middle position of the uppermost layer of the tower building crane. The concrete placing boom transports concrete to the front end of the placing boom, and the length of the placing boom is adjusted by the top support cylinder. According to the construction requirements, the angle of the placing boom is intelligently adjusted to make the concrete accurately distributed in a circular shape on the outside of the concrete placing boom, which can efficiently complete the concrete transportation and pouring work, ensuring the continuity and efficiency of the construction.

[0003] However, when placing concrete, the front end of the concrete placing boom's forearm needs to be moved close to the position of the concrete placing boom for pouring. Since the front end of the concrete placing boom's forearm and the extended boom of the concrete placing boom will exceed the height from the concrete placing boom to the pouring position, the concrete placing needs to be carried out by tilting the forearm of the concrete placing boom. The forearm and the boom are only supported and tilted by the top support cylinder. When conveying concrete for pouring, the forearm exerts a greater pressure on the top support cylinder, which can easily damage the connection of the top support cylinder and cause the forearm to shake. In addition, the concrete conveyed by the front end of the concrete placing boom's forearm impacts the pouring position under gravity. When the front end of the forearm is intelligently discharging, the outlet end of the forearm cannot be manually supported due to the intelligent moving state. As a result, the concrete rushing out at the outlet end can easily form a large unstable impact force, thereby causing unstable concrete pouring of the concrete. Summary of the Invention

[0004] The present invention provides an intelligent material placing machine for a tower crane and a working method thereof, which overcome the deficiencies described in the background art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] An intelligent material placing machine for a tower building machine comprises a base fixed to the top of the tower building machine, a material placing mechanism, a support arm, a turntable, a conveying pipe, a swing arm, and a counterweight box, wherein the counterweight box is provided on the side of the turntable, and the turntable is provided at the upper end of the base, the support arm is rotatably fixed to the upper end of the turntable, the swing arm is provided at the outer end of the support arm, the conveying pipe is provided along the support arm and the swing arm, the input end of the conveying pipe passes through the turntable and the base, the material placing mechanism is provided at the outer end of the swing arm, and the support arm, the swing arm, and the material placing mechanism are respectively provided with hydraulic pressures and driven to rotate by their respective hydraulic pressures;

[0007] The cloth mechanism is provided with a guide tube, a support rod, a transmission structure, a discharge structure, a first gear plate, a fixed plate and a track bar. The discharge structure is arranged at the lower end of the guide tube, and the track bars are arranged on both sides of the guide tube. There are two support rods, which respectively support the track bars obliquely from the side of the transmission structure. The fixed plate is arranged between the transmission structure and the swing arm. The guide tube is fixedly rotated inside the fixed plate with the first gear plate as the center. The hydraulic press acts on the side of the guide tube to drive the guide tube to rotate, thereby driving the first gear plate to rotate. The first gear plate is engaged with the inside of the transmission structure and drives its movement. The support rod is driven by the transmission structure, and its lower end can slide in the track bar and support the guide tube.

[0008] A better technical solution: the transmission structure is provided with a second gear plate, a pull plate structure, an extrusion rod, a shell and a track plate, the second gear plate is arranged inside the shell, the extrusion rod is arranged on the side of the second gear plate, the pull plate structure is fixed on the side of the second gear plate, and the pull plate structure slides on the inside of the track plate, the upper end of the support rod is arranged on both sides of the pull plate structure, and the lower end of the support rod is inclined to support the guide tube in the track bar.

[0009] A better technical solution: the pulling plate structure is provided with a rotating shaft, an elastic structure and a connecting rod, the rotating shaft is arranged on the side of the second gear plate, the elastic structure is arranged on the outer end of the rotating shaft, the connecting rod is arranged on the left and right sides of the elastic structure, and the connecting rod slides in the track plate, the connecting rod passes through the side of the shell and is connected to the upper end of the support rod. When the rotating shaft rotates to the upper left, the connecting rod is driven by the elastic structure to slide in the track plate toward the guide tube, and the elastic force of the elastic structure causes the lower end of the support rod to provide support to the guide tube through the track bar.

[0010] A better technical solution: The elastic structure is provided with a spring rod, a movable plate, a connecting plate and a limit bar. There are two spring rods, which are symmetrically distributed on both sides of the movable plate, and the spring rods are connected to the side of the connecting plate. The limit bar is arranged on the side of the movable plate facing away from the connecting plate. Under the action of the pre-tightening force of the spring rod, the limit bar rests on the connecting plate. When the second gear plate rotates clockwise, the extrusion rod rests on the limit bar and pushes the movable plate to extend and retract the spring rod, so that the connecting rod slides outward in the track plate.

[0011] A better technical solution: the discharging structure is provided with a circulation pipe, a buffer structure, a fixed block and a hollow tube. The circulation pipe passes through the inside of the guide pipe and is connected to the conveying pipe. The hollow tube is arranged at the lower end of the guide pipe, and the fixed block is arranged on the inside of the hollow tube. The buffer structure is provided with three, which are evenly arranged in a ring shape, and the buffer structure is rotated by the fixed block, and the buffer structure is pressed against the outside of the circulation pipe.

[0012] A preferred technical solution: The buffer structure is provided with a rubber plate, a plastic plate and a force-bearing plate. The rubber plate is arranged at the upper end of the force-bearing plate, the plastic plate is arranged at the upper end of the rubber plate, and the plastic plate is arranged at an angle on the inner side of the hollow tube. The fixed block is provided with three notches. When the bottom of the force-bearing plate is impacted by concrete, the buffer structure rotates inward around the axis on the fixed block, driving the rubber block to press against the outside of the circulation tube.

[0013] Based on the above-mentioned working method of the intelligent concrete placing boom of a tower crane, the specific working method includes the following steps:

[0014] S1: Based on the required distribution range, the base is installed at the center of the area to be distributed. Concrete is then extracted through the input end of the delivery pipe. The support arm, swing arm, and distribution mechanism are rotated by the intelligent control hydraulic device. The turntable is intelligently controlled to rotate at the top of the base. The counterweight box is used to balance the load. The delivery pipe delivers concrete to the bottom end of the distribution mechanism for concrete pouring within the range.

[0015] S2: When the hydraulic actuator drives the guide tube to rotate and tilt to the left, the first gear plate rotates clockwise around the center of the fixed plate, so that the discharging structure engages and drives the second gear plate in the transmission structure to rotate counterclockwise. At this time, the pull plate structure rotates and moves to the upper left, and drives the upper end of the support rod to slide in the track plate. At this time, the spring rod in the elastic structure causes the connecting rod to provide a certain elastic support to the support rod, so that under the elastic force provided by the elastic structure, the lower end of the support rod moves in the track bar to the lower side of the guide tube after tilting and provides tilting support;

[0016] S3: When the hydraulic device pushes the guide tube to rotate right and tilt, the first gear plate drives the second gear plate to rotate clockwise, so that the outer end of the extrusion rod abuts against the limit bar, and the movable plate compresses the spring rod under the rotation, so that the connecting rod moves outward under the elastic force of the spring rod, and drives the upper end of the support rod to slide outward in the track plate through the connecting rod. At this time, under the elastic force of the spring rod, the upper end of the support rod is suspended on the guide tube through the position of the track bar;

[0017] S4: When concrete flows from the delivery pipe to the guide pipe, it will impact the three buffer structures, causing the buffer structures to rotate inward through the fixed blocks, causing the rubber plates to press against the outside of the flow pipe. At this time, the rubber plates convert the impact force of the concrete on the load-bearing plates into elastic shock-absorbing force on the outside of the flow pipe.

[0018] Compared with the existing technology, this technical solution has the following advantages:

[0019] When the hydraulic actuator in the present invention pulls the guide tube to rotate left, the left end of the pull plate structure is rotated to the upper left by the second gear plate. At this time, the pull plate structure pulls the connecting rod to slide in the track plate toward the first gear plate, and then the upper end of the support rod is moved by the connecting rod, and the movement of the upper end of the support rod will cause the lower end of the support rod to slide downward in the track bars on both sides of the guide tube. At this time, the lower end of the support rod is against the left side inside the track bar. When the guide tube tilts and stops, the elasticity of the spring rod supports the upper end of the support rod outside the connecting rod, and then the lower end of the support rod slides down in the track bar to support the guide tube, thereby supporting the guide tube rotating to the left, reducing the influence of the gravity of the guide tube on the hydraulic actuator, and avoiding the hydraulic actuator being easily damaged and causing shaking due to excessive load.

[0020] In the present invention, when the conveying pipe conveys concrete to the circulation pipe in the guide pipe, the concrete falls from below and impacts the lower end of the buffer structure, so that the lower end of the load-bearing plate is impacted by the concrete, causing the load-bearing plate to rotate toward the outside of the circulation pipe with the fixed block as the center, and driving the rubber plate to press against the outside of the circulation pipe, thereby converting the impact force of the concrete in the circulation pipe into a stable supporting force of the buffer structure on the circulation pipe, and the concrete falls downward from the notch of the load-bearing plate, thereby reducing the impact force of the concrete from the top of the guide pipe, reducing the shaking of the circulation pipe under the impact force of the concrete, improving the stability of the concrete pouring in the circulation pipe, and enhancing the stability of the discharge structure, thereby avoiding the shaking caused by the instability of the guide pipe and reducing the load on the hydraulic press. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 This is an overall diagram of the present invention.

[0023] Figure 2 A side view of the fabric mechanism.

[0024] Figure 3 A side view of the transmission structure.

[0025] Figure 4 It is a plan view of the pull plate structure.

[0026] Figure 5 A three-dimensional schematic diagram of the elastic structure.

[0027] Figure 6 It is a side view of the discharge structure.

[0028] Figure 7 A three-dimensional schematic diagram of the buffer structure.

[0029] In the figure: material dispensing mechanism 1, support arm 2, turntable 3, conveying pipe 4, swing arm 5, counterweight box 6, base 7, guide pipe 11, support rod 12, transmission structure 13, discharging structure 14, first gear plate 15, fixed plate 16, track bar 17, hydraulic press 101, second gear plate 131, pull plate structure 132, extrusion rod 133, housing 134, track plate 135, rotating shaft 1321, elastic structure 1322, connecting rod 1323, spring rod 221, movable plate 222, connecting plate 223, limiting bar 224, circulation pipe 141, buffer structure 142, fixed block 143, hollow tube 144, rubber plate 421, plastic plate 422, and force plate 423. DETAILED DESCRIPTION

[0030] like Figures 1 to 7 As shown, the present invention proposes an intelligent material placing machine for a tower building machine, comprising a base 7 fixed to the top of the tower building machine, a material placing mechanism 1, a support arm 2, a turntable 3, a conveying pipe 4, a swing arm 5 and a counterweight box 6. The counterweight box 6 is provided on the side of the turntable 3, and the turntable 3 is provided on the upper end of the base 7. The support arm 2 is rotatably fixed to the upper end of the turntable 3, the swing arm 5 is provided at the outer end of the support arm 2, the conveying pipe 4 is provided along the support arm 2 and the swing arm 5, and the input end of the conveying pipe 4 passes through the turntable 3 and the base 7. The material placing mechanism 1 is provided at the outer end of the swing arm 5, and the support arm 2, the swing arm 5 and the material placing mechanism 1 are respectively provided with a hydraulic press 101, and are driven to rotate by their respective hydraulic presses 101;

[0031] The cloth mechanism 1 is provided with a guide tube 11, a support rod 12, a transmission structure 13, a discharge structure 14, a first gear plate 15, a fixed plate 16 and a track bar 17. The discharge structure 14 is arranged at the lower end of the guide tube 11, and the track bars 17 are arranged on both sides of the guide tube 11. There are two support rods 12, which respectively support the track bars 17 obliquely from the side of the transmission structure 13. The fixed plate 16 is arranged between the transmission structure 13 and the swing arm 5. The guide tube 11 is fixed and rotated inside the fixed plate 16 with the first gear plate 15 as the center. The hydraulic press 101 acts on the side of the guide tube 11 to drive the guide tube 11 to rotate, thereby driving the first gear plate 15 to rotate. The first gear plate 15 is engaged with the inside of the transmission structure 13 and drives its movement. The support rod 12 is driven by the transmission structure 13, and its lower end can slide in the track bar 17 and support the guide tube 11.

[0032] In addition, the conveying pipe 4 is a soft corrugated pipe at the corners of the support arm 2, the swing arm 5 and the material distribution mechanism 1, but the rotation of the support arm 2, the swing arm 5 and the material distribution mechanism 1 is achieved by bending the corrugated pipe.

[0033] Furthermore, when the hydraulic press 101 hydraulically pushes the guide tube 11 to rotate, its connection end point can be tilted along with the rotation of the guide tube 11, thereby preventing the connection position between the hydraulic press 101 and the guide tube 11 from moving due to the angle change after the guide tube 11 rotates.

[0034] In addition, the counterweight box 6 supports the gravity of the support arm 2, the swing arm 5 and the turntable 3, so that when the support arm 2, the swing arm 5 and the turntable 3 are on one side, the turntable 3 will not be tilted to one side.

[0035] Among them, the transmission structure 13 is provided with a second gear plate 131, a pull plate structure 132, an extrusion rod 133, a shell 134 and a track plate 135. The second gear plate 131 is arranged inside the shell 134, the extrusion rod 133 is arranged on the side of the second gear plate 131, the pull plate structure 132 is fixed on the side of the second gear plate 131, and the pull plate structure 132 slides on the inside of the track plate 135. The upper end of the support rod 12 is arranged on both sides of the pull plate structure 132, and the lower end of the support rod 12 is inclined to support the guide tube 11 in the track bar 17.

[0036] In addition, there are two first gear plates 15, and each first gear plate 15 is provided with a plate connected to the upper end of the guide tube 11 on both sides. The first gear plate 15 is driven to rotate along with the guide tube 11 by the plate connected to the upper end of the guide tube 11, and the space between the two fixed plates 16 is hollow, which is used for the conveying pipe 4 to pass through the guide tube 11 from the middle.

[0037] Among them, the pulling plate structure 132 is provided with a rotating shaft 1321, an elastic structure 1322 and a connecting rod 1323. The rotating shaft 1321 is arranged on the side of the second gear plate 131, the elastic structure 1322 is arranged on the outer end of the rotating shaft 1321, and the connecting rod 1323 is arranged on the left and right sides of the elastic structure 1322, and the connecting rod 1323 slides in the track plate 135. The connecting rod 1323 passes through the side of the shell 134 and is connected to the upper end of the support rod 12. When the rotating shaft 1321 rotates to the upper left, the elastic structure 1322 drives the connecting rod 1323 to slide in the track plate 135 toward the guide tube 11. The elastic force of the elastic structure 1322 enables the lower end of the support rod 12 to provide support to the guide tube 11 through the track bar 17.

[0038] Among them, the elastic structure 1322 is provided with a spring rod 221, a movable plate 222, a connecting plate 223 and a limit bar 224. The spring rod 221 is provided with two, which are symmetrically distributed on both sides of the movable plate 222, and the spring rod 221 is connected to the side of the connecting plate 223. The limit bar 224 is arranged on the side of the movable plate 222 facing away from the connecting plate 223. Under the action of the pre-tightening force of the spring rod 221, the limit bar 224 rests on the connecting plate 223. When the second gear plate 131 rotates clockwise, the extrusion rod 133 rests on the limit bar 224 and pushes the movable plate 222 to retract and contract the spring rod 221, so that the connecting rod 1323 slides outward in the track plate 135.

[0039] In addition, the connecting plate 223 is in an inclined state relative to the limiting strip 224, which is used for the extrusion rod 133 to squeeze the limiting strip 224 at the inclined position of the connecting plate 223, and the middle of the limiting strip 224 is an arc-shaped opening, which facilitates the extrusion rod 133 to be inserted into the middle of the limiting strip 224, thereby preventing the extrusion rod 133 from detaching from the limiting strip 224 when pushing the movable plate 222.

[0040] In addition, the extrusion rod 133 and the pull plate structure 132 are fixed to the side position of the second gear plate 131, and rotate with the second gear plate 131 as the center bearing. When the second gear plate 131 rotates counterclockwise, the extrusion rod 133 is close to the top of the pull plate structure 132 under the rotation of the bearing, preventing the extrusion rod 133 from rotating to the left and leaving the position of the pull plate structure 132. When the guide tube 11 is in a vertical state, the pull plate structure 132 is located on the right side of the second gear plate 131. At this time, the pull plate structure 132 and the track plate 135 are on the same horizontal line, and the upper end of the support rod 12 is located in the middle position of the track plate 135.

[0041] Moreover, the pull plate structure 132 rotates on the second gear plate 131 at an angle less than 90°, the second gear plate 131 can only rotate counterclockwise or clockwise at an angle less than 90°, and the inclination angle of the guide tube 11 is less than 45°.

[0042] In addition, semicircular blocks are arranged equidistantly on both sides of the track bar 17, and the semicircular blocks are made of rubber. However, when the support rod 12 slides in the track bar 17, it will squeeze the semicircular blocks. When it stops sliding, the support rod 12 is clamped by the four adjacent semicircular blocks on the inner side of the track bar 17. When the upper end of the support rod 12 stops sliding, the lower end of the support rod 12 no longer generates a force for displacement and sliding. At this time, the semicircular blocks compress and limit the lower end of the support rod 12. When the support rod 12 supports the guide tube 11, it prevents the lower end of the support rod 12 from sliding in the track bar 17 under the supporting force, thereby reducing the supporting force.

[0043] In the present invention, when the hydraulic press 101 pulls the guide tube 11 to rotate to the left, the first gear plate 15 rotates along with the guide tube 11, so that the first gear plate 15 rotates clockwise, and the first gear plate 15 drives the second gear plate 131 to mesh and rotate counterclockwise, and then the second gear plate 131 drives the pull plate structure 132 to rotate to the upper left. At this time, the pull plate structure 132 pulls the connecting rod 1323 to slide in the track plate 135 toward the first gear plate 15, and then the upper end of the support rod 12 is connected to the connecting rod 13 23 moves, and the movement of the upper end of the support rod 12 causes the lower end of the support rod 12 to slide downward in the track bars 17 on both sides of the guide tube 11. At this time, the lower end of the support rod 12 is against the left side of the inner side of the track bar 17. When the guide tube 11 stops tilting, the upper end of the support rod 12 outside the connecting rod 1323 is supported by the elasticity of the spring rod 221, and then the lower end of the support rod 12 slides downward in the track bar 17 to support the guide tube 11, and the angle of the support rod 12 is changed as the guide tube 11 rotates to adjust the angle. The angle of the guide tube 11 is supported, so that the support rod 12 supports the guide tube 11 rotating to the left, reducing the influence of the gravity of the guide tube 11 on the hydraulic press 101. When the hydraulic press 101 pushes the guide tube 11 to rotate to the right with the first gear plate 15 as the center, the first gear plate 15 rotates counterclockwise and drives the second gear plate 131 to rotate clockwise. At this time, the extrusion rod 133 relatively pushes the limit bar 224 and drives the movable plate 222 to move under the elasticity of the spring rod 221, and then the connecting rod 13 23 slides in the direction away from the first gear plate 15 on the track plate 135. At this time, the lower end of the support rod 12 slides downward in the track bar 17. Under the elasticity of the spring rod 221, the connecting rod 1323 drives the upper end of the support rod 12 to tilt and lift the position of the track bar 17 at the lower end of the support rod 12, and generates an upward force on the gravity of the guide tube 11, thereby reducing the pushing support force of the hydraulic press 101 on the guide tube 11 from the lower side, and preventing the hydraulic press 101 from being damaged and causing shaking due to excessive load.

[0044] Among them, when the guide tube 11 is subjected to the impact force of concrete, it is pulled to the left by the hydraulic press 101 to generate a downward shaking force. At this time, the guide tube 11 will drive 15 to rotate counterclockwise with 131 in 13, thereby increasing the inclination angle of the upper end of the support rod 12. At this time, the inclination of the support rod 12 becomes larger, which will generate a certain supporting force on the side of the guide tube 11 at the lower end of the support rod 12. Therefore, the active force generated by the shaking of the guide tube 11 will form support in a small range, and this supporting force is smaller than the pulling force of the hydraulic press 101 on the guide tube 11. When the hydraulic press 101 pushes the guide tube 11 to the right, this supporting force forms a force to lift the guide tube 11 when the guide tube 11 is pushed to the right.

[0045] Among them, the discharging structure 14 is provided with a circulation pipe 141, a buffer structure 142, a fixed block 143 and a hollow tube 144. The circulation pipe 141 passes through the inside of the guide pipe 11 and is connected to the conveying pipe 4. The hollow tube 144 is arranged at the lower end of the guide pipe 11, and the fixed block 143 is arranged on the inner side of the hollow tube 144. The buffer structure 142 is provided with three, which are evenly arranged in a ring shape, and the buffer structure 142 is rotated by the fixed block 143, and the buffer structure 142 is pressed against the outside of the circulation pipe 141.

[0046] Among them, the buffer structure 142 is provided with a rubber plate 421, a plastic plate 422 and a force-bearing plate 423. The rubber plate 421 is arranged at the upper end of the force-bearing plate 423, and the plastic plate 422 is arranged at the upper end of the rubber plate 421. The plastic plate 422 is arranged at an angle on the inner side of the hollow tube 144. The fixed block 143 is provided with three notches. When the bottom of the force-bearing plate 423 is impacted by concrete, the buffer structure 142 rotates inward around the axis on the fixed block 143, driving the rubber plate 421 to press against the outside of the circulation tube 141.

[0047] In addition, the load-bearing plates 423 are of an "L"-shaped structure. The three load-bearing plates 423 are distributed in a ring shape below the circulation tube 141, and the central axis positions of the three load-bearing plates 423 are hollow. The load-bearing plates 423 mainly guide the concrete on the inner wall of the circulation tube 141 that affects the stability of the circulation tube 141.

[0048] Moreover, when the force plate 423 is stationary, Figure 6 On the left side, when the load plate 423 is impacted by the concrete, Figure 6 On the right side, the maximum rotation angle of the buffer structure 142 is 20°, so that the notch at the lower end of the load-bearing plate 423 is inclined toward the central axis of the circulation tube 141, causing the concrete to fall toward the middle, so that the moisture in the concrete flowing in the circulation tube 141 is gathered in the middle, preventing the moisture from being easily separated when the concrete falls and is poured in the circulation tube 141.

[0049] In addition, the plastic plate 422 is inclined toward the flow tube 141. When the rubber plate 421 in the buffer structure 142 presses against the outside of the flow tube 141, the rubber plate 421 is compressed under the support of the plastic plate 422, and the plastic plate 422 and the force-bearing plate 423 form an effect of tilting and supporting the rubber plate 421 on both sides of the rubber plate 421, thereby avoiding the rubber plate 421 from exerting too little pressure on the flow tube 141.

[0050] In the present invention, when the conveying pipe 4 conveys concrete to the circulation pipe 141 in the guide pipe 11, the concrete falls from below and impacts the lower end of the buffer structure 142, so that the lower end of the force plate 423 is impacted by the concrete, causing the force plate 423 to rotate toward the outside of the circulation pipe 141 with the fixed block 143 as the center, and driving the rubber plate 421 to press against the outside of the circulation pipe 141, converting the impact force of the concrete in the circulation pipe 141 into a stable supporting force of the buffer structure 142 on the circulation pipe 141, and the concrete falls downward from the notch of the force plate 423, which reduces the impact force of the concrete from the top of the guide pipe 11 downward, reduces the shaking of the circulation pipe 141 under the impact force of the concrete, improves the stability of the concrete pouring in the circulation pipe 141, and the stability of the discharge structure 14 is enhanced, which can avoid the shaking caused by the instability of the guide pipe 11 and reduce the load on the hydraulic press 101.

[0051] Based on the above-mentioned working method of the intelligent concrete placing boom of a tower crane, the specific working method includes the following steps:

[0052] S1: According to the required distribution range, the base 7 is installed at the center of the area to be distributed. Then, concrete is extracted through the input end of the delivery pipe 4. The support arm 2, the swing arm 5 and the distribution mechanism 1 are supported and rotated by the intelligent control hydraulic device 101. The turntable 3 is intelligently controlled to rotate at the upper end of the base 7. The counterweight box 6 is used to balance the load. The delivery pipe 4 delivers concrete to the lower end of the distribution mechanism 1 for concrete pouring within the range.

[0053] S2: When the hydraulic press 101 drives the guide tube 11 to rotate and tilt to the left, the first gear plate 15 rotates clockwise around the center of the fixed plate 16, so that the discharging structure 14 engages and drives the second gear plate 131 in the transmission structure 13 to rotate counterclockwise. At this time, the pulling plate structure 132 rotates and moves to the upper left, and drives the upper end of the support rod 12 to slide in the track plate 135. At this time, through the spring rod 221 in the elastic structure 1322, the connecting rod 1323 generates a certain elastic support for the support rod 12, so that under the elastic force provided by the elastic structure 1322, the lower end of the support rod 12 moves in the track bar 17 to the lower side of the guide tube 11 after tilting and provides tilting support;

[0054] S3: When the hydraulic press 101 pushes the guide tube 11 to rotate right and tilt, the first gear plate 15 drives the second gear plate 131 to rotate clockwise, so that the outer end of the extrusion rod 133 abuts against the limit bar 224, and the movable plate 222 is pushed to compress the spring rod 221 during the rotation, so that the connecting rod 1323 moves outward under the elastic force of the spring rod 221, and the upper end of the support rod 12 is driven by the connecting rod 1323 to slide outward in the track plate 135. At this time, under the elastic force of the spring rod 221, the upper end of the support rod 12 is suspended on the guide tube 11 through the position of the track bar 17;

[0055] S4: When concrete flows from the delivery pipe 4 to the guide pipe 11, it will impact the three buffer structures 142, so that the buffer structures 142 rotate inward through the fixed block 143, causing the rubber plate 421 to press against the outside of the flow pipe 141. At this time, the rubber plate 421 converts the impact force of the concrete on the load-bearing plate 423 into an elastic shock-absorbing force exerted by the rubber plate 421 on the outside of the flow pipe 141.

[0056] The above description is merely a preferred embodiment of the present invention and therefore cannot be used to limit the scope of the present invention. In other words, equivalent changes and modifications made according to the scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. An intelligent concrete placing machine for tower crane construction, characterized in that: It includes a base fixed to the top of the tower building machine, and also includes a material distribution mechanism, a support arm, a turntable, a conveying pipe, a swing arm and a counterweight box. The counterweight box is provided on the side of the turntable, and the turntable is provided at the upper end of the base. The support arm is rotatably fixed to the upper end of the turntable, and the swing arm is provided at the outer end of the support arm. The conveying pipe is provided along the support arm and the swing arm, and the input end of the conveying pipe passes through the turntable and the base. The material distribution mechanism is provided at the outer end of the swing arm. The support arm, the swing arm and the material distribution mechanism are respectively provided with hydraulic pressures and driven to rotate by their respective hydraulic pressures. The material distributing mechanism is provided with a guide tube, a support rod, a transmission structure, a discharging structure, a first gear plate, a fixed plate and a track bar. The discharging structure is arranged at the lower end of the guide tube, and the track bars are arranged on both sides of the guide tube. There are two support rods, which respectively support the track bars obliquely from the side of the transmission structure. The fixed plate is arranged between the transmission structure and the swing arm. The guide tube is fixedly rotated inside the fixed plate with the first gear plate as the center. The hydraulic pressure acts on the side of the guide tube to drive the guide tube to rotate, thereby driving the first gear plate to rotate. The first gear plate is engaged with the inside of the transmission structure and drives it to move. The support rod is driven by the transmission structure, and its lower end can slide in the track bar and support the guide tube; The transmission structure is provided with a second gear plate, a pull plate structure, an extrusion rod, a housing and a track plate, wherein the second gear plate is arranged inside the housing, the extrusion rod is arranged on the side of the second gear plate, the pull plate structure is fixed on the side of the second gear plate, and the pull plate structure slides on the inside of the track plate, the upper ends of the support rods are arranged on both sides of the pull plate structure, and the lower ends of the support rods are inclined to support the guide tube in the track bar; The pulling plate structure is provided with a rotating shaft, an elastic structure and a connecting rod. The rotating shaft is arranged on the side of the second gear plate, the elastic structure is arranged on the outer end of the rotating shaft, the connecting rod is arranged on the left and right sides of the elastic structure, and the connecting rod slides in the track plate, and the connecting rod passes through the side of the shell and is connected to the upper end of the support rod. When the rotating shaft rotates to the upper left, the elastic structure drives the connecting rod to slide in the track plate toward the guide tube. The elastic force of the elastic structure enables the lower end of the support rod to provide support to the guide tube through the track bar.

2. The intelligent material placing machine for tower crane according to claim 1, characterized in that: The elastic structure is provided with a spring rod, a movable plate, a connecting plate and a limit bar. There are two spring rods, which are symmetrically distributed on both sides of the movable plate, and the spring rods are connected to the side of the connecting plate. The limit bar is arranged on the side of the movable plate facing away from the connecting plate. Under the action of the pre-tightening force of the spring rod, the limit bar abuts against the connecting plate. When the second gear plate rotates clockwise, the extrusion rod abuts against the limit bar and pushes the movable plate to retract the spring rod, so that the connecting rod slides outward in the track plate.

3. The intelligent material placing machine for tower crane according to claim 2, characterized in that: The discharging structure is provided with a circulation pipe, a buffer structure, a fixed block and a hollow pipe. The circulation pipe passes through the inside of the guide pipe and is connected to the conveying pipe. The hollow pipe is arranged at the lower end of the guide pipe, and the fixed block is arranged inside the hollow pipe. The buffer structure is provided with three, which are evenly arranged in a ring shape, and the buffer structure rotates through the fixed block and makes the buffer structure rest against the outside of the circulation pipe.

4. The intelligent material placing machine for a tower crane according to claim 3, characterized in that: The buffer structure is provided with a rubber plate, a plastic plate and a force-bearing plate. The rubber plate is arranged at the upper end of the force-bearing plate, the plastic plate is arranged at the upper end of the rubber plate, and the plastic plate is arranged obliquely on the inner side of the hollow tube. The fixed block is provided with three notches. When the bottom of the force-bearing plate is impacted by concrete, the buffer structure rotates inward around the axis on the fixed block, driving the rubber block to press against the outside of the circulation tube.

5. The operating method of the intelligent concrete placing boom of a tower crane according to claim 4, wherein the specific operating method comprises the following steps: S1: Based on the required distribution range, the base is installed at the center of the area to be distributed. Concrete is then extracted through the input end of the delivery pipe. The support arm, swing arm, and distribution mechanism are rotated by the intelligent control hydraulic device. The turntable is intelligently controlled to rotate at the top of the base. The counterweight box is used to balance the load. The delivery pipe delivers concrete to the bottom end of the distribution mechanism for concrete pouring within the range. S2: When the hydraulic actuator drives the guide tube to rotate and tilt to the left, the first gear plate rotates clockwise around the center of the fixed plate, so that the discharging structure engages and drives the second gear plate in the transmission structure to rotate counterclockwise. At this time, the pull plate structure rotates and moves to the upper left, and drives the upper end of the support rod to slide in the track plate. At this time, the spring rod in the elastic structure causes the connecting rod to provide a certain elastic support to the support rod, so that under the elastic force provided by the elastic structure, the lower end of the support rod moves in the track bar to the lower side of the guide tube after tilting and provides tilting support; S3: When the hydraulic device pushes the guide tube to rotate right and tilt, the first gear plate drives the second gear plate to rotate clockwise, so that the outer end of the extrusion rod abuts against the limit bar, and the movable plate compresses the spring rod under the rotation, so that the connecting rod moves outward under the elastic force of the spring rod, and drives the upper end of the support rod to slide outward in the track plate through the connecting rod. At this time, under the elastic force of the spring rod, the upper end of the support rod is suspended on the guide tube through the position of the track bar; S4: When concrete flows from the delivery pipe to the guide pipe, it will impact the three buffer structures, causing the buffer structures to rotate inward through the fixed blocks, causing the rubber plates to press against the outside of the flow pipe. At this time, the rubber plates convert the impact force of the concrete on the load-bearing plates into elastic shock-absorbing force on the outside of the flow pipe.

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