Climbing platform for tower crane

Abstract

The application discloses a climbing platform for a tower crane, which comprises guide rails, a climbing mechanism, a steel structure platform and a guide wheel device, the guide rails are composed of multiple sections and are arranged in two rows in parallel, are fixed on a building through foundation bolts pre-buried in the wall surface of the building, and are provided with supporting lugs arranged at equal intervals; the upper part of each supporting lug is provided with a circular arc groove, and the supporting lug is provided with a through hole; the climbing mechanism comprises a hydraulic station, an oil cylinder and a climbing beam, the climbing beam is hinged to the piston rod of the oil cylinder, and the two ends of the climbing beam are supported in the circular arc grooves of the supporting lugs; the oil cylinder is communicated with the hydraulic station; and the steel structure platform comprises a tower crane mounting bottom plate, a climbing platform, an oil cylinder mounting lug plate and a fixing lug plate, and the tower crane mounting bottom plate is connected to the top surface of the climbing platform. The tower crane is externally attached to the building wall surface and climbs by means of the guide rails, the climbing mechanism and other devices.

Description

Technical Field

[0001] This invention belongs to the field of tower cranes, and particularly relates to a climbing platform for tower cranes. Background Technology

[0002] With the development of the construction industry and the needs of construction, tower cranes are becoming increasingly diversified, with a growing number of different functional tower cranes. Especially when the exterior wall of a building is sloping, traditional tower cranes require additional anchoring devices once the tower exceeds its independent height. As the tower height increases, the distance between the sloping exterior wall and the center of the tower increases, consequently increasing the length of the anchoring devices. This increases the tower's wind resistance, negatively impacting stability and operational safety. Furthermore, traditional tower cranes require manual installation and dismantling for jacking operations, which results in a relatively unstable structure and complex stress conditions. Ensuring the safety of jacking operations often necessitates higher costs. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a climbing platform for tower cranes, which uses guide rails, climbing mechanisms and other devices to allow the tower crane to be attached to the building wall and climb.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a climbing platform for tower cranes, comprising a guide rail, a climbing mechanism, a steel structure platform, and a guide wheel device. The guide rail is composed of multiple segments connected in series, arranged in two parallel rows, and fixed to the building by anchor bolts pre-embedded in the building wall. The guide rail is provided with equidistantly arranged lugs, each lug having an arc groove at its upper part and a through hole. The climbing mechanism includes a hydraulic station, a cylinder, and a climbing beam. The climbing beam is hinged to the piston rod of the cylinder. The beam is supported at both ends in the arc grooves of the lugs. The oil cylinder is connected to the hydraulic station. The steel structure platform includes a tower crane mounting base plate, a climbing platform, oil cylinder mounting lugs, and fixed lugs. The tower crane mounting base plate is connected to the top surface of the climbing platform. The climbing platform is provided with oil cylinder mounting lugs and a fixed lug at its top. A movable lug is hinged to the fixed lug. The movable lug is connected to the lug through a safety pin and a through hole on the lug. The fixed lug and the lower end of the climbing platform are connected to the guide rail through a guide wheel device.

[0005] In the above technical solution, the guide wheel device includes a guide ear seat, a traveling wheel, and a connecting ear seat. The traveling wheel is fixed on the guide ear seat by a bearing and is mounted on a guide rail. The guide ear seat and the connecting ear seat are connected by bolts. The aforementioned fixed ear plate is hinged to the connecting ear seat, and the lower end of the climbing platform is hinged to the connecting ear seat.

[0006] In the above technical solution, the movable ear plate is hinged with a hanging claw, which is hooked into the arc groove of the support ear.

[0007] In the above technical solution, an inclination adjusting device is provided at the bottom of the climbing platform, the inclination adjusting device includes a hollow sleeve, an adjusting lug plate, an angle adjusting screw and a stop nut, the sleeve is provided with internal threads, the adjusting lug plate and the angle adjusting screw are arranged in the sleeve, the head of the adjusting lug plate is connected with the guide wheel device, the tail of the adjusting lug plate is rotatably connected with the angle adjusting screw, and the stop nut is arranged on the angle adjusting screw.

[0008] In the above technical solution, the tower crane mounting base plate comprises a mounting base in a "rice" shape, a plurality of groups of mounting holes with different spacing are arranged on four edges of the mounting base along the diagonal direction of the climbing platform, and a plurality of support legs are connected to the mounting base through fixing bolts.

[0009] In the above technical solution, the lower end of the support lug is a slant edge.

[0010] Beneficial effects of the present invention are: The tower crane is installed on the climbing platform, and the jacking operation is completed by the climbing platform, so the jacking sleeve and the jacking section adding process of the tower crane are eliminated, and the risk of safety accidents easily occurring in the jacking section adding operation of the tower crane is avoided; since the platform has the function of climbing along the external wall of the building, the height of the tower body is greatly reduced, the attachment device and the standard section for heightening are eliminated, and the production and use costs are reduced. The specific implementation steps are as follows: according to the size of the holes on the guide rail, anchor bolts are pre-embedded on the external wall while the building is under construction, and the guide rail is fixed on the external wall of the building through the pre-embedded bolts; a plurality of layers of fixing lug plates are arranged on the climbing platform, and pin shafts are adopted to pass through the fixing lug plates and the guide rail support lugs, so that the climbing platform is fixed on the guide rail to meet the normal working requirements of the tower crane. Description of Drawings

[0011] Figure 1 is a schematic diagram of the use of the present invention.

[0012] Figure 2 is a schematic structural diagram of the present invention.

[0013] Figure 3 is a schematic diagram of the guide rail fixed on a building.

[0014] Figure 4 is Figure 3 's left view.

[0015] Figure 5 is a Figure 2 's structural schematic diagram of the tower crane mounting base plate.

[0016] Figure 6 is a Figure 2 's structural schematic diagram of the guide wheel device.

[0017] Figure 7 is a Figure 2 's schematic diagram of the climbing mechanism.

[0018] Figure 8 for Figure 7 K-direction view of the middle part of the structure.

[0019] Figure 9 for Figure 7 A schematic diagram of the tilt adjustment device.

[0020] Figure 10 for Figure 2 A schematic diagram of the structure of the central guide wheel device and the movable ear plate.

[0021] Figure 11 for Figure 7 A schematic diagram of the structure of the climbing platform.

[0022] The components are: 1. Guide rail, 2. Rear guide lug, 3. Adjusting lug, 4. Support lug, 5. Climbing beam, 6. Anchor nut, 7. Front guide lug, 8. Connecting lug, 9. Movable lug, 10. Hanging claw, 11. Fixed lug, 12. Tower body, 13. Support leg, 14. Climbing platform, 15. Angle adjusting screw, 16. Hydraulic cylinder mounting lug, 17. Safety pin, 18. Hydraulic cylinder, 19. Stop nut, 20. Traveling wheel, 21. Tower crane mounting base plate, 22. Sleeve. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 7 , Figure 8 and Figure 11 The diagram shows a climbing platform for a tower crane, comprising a guide rail 1, a climbing mechanism, a steel structure platform, and a guide wheel device. The guide rail 1 is composed of multiple segments connected in series, arranged in two parallel rows, and fixed to the building by anchor bolts pre-embedded in the building wall. The guide rail 1 has equidistantly arranged lugs 4, each lug having an arc groove at its upper part and a through hole. The climbing mechanism includes a hydraulic station, a cylinder 18, and a climbing beam 5. The climbing beam 5 is hinged to the piston rod of the cylinder 18, and both ends of the climbing beam 5 are supported within the arc grooves of the lugs 4. The cylinder 18... 8. Connected to the hydraulic station, the steel structure platform includes a tower crane mounting base plate 21, a climbing platform 14, a cylinder mounting lug 16, and a fixed lug 11. The tower crane mounting base plate 21 is connected to the top surface of the climbing platform 14. The climbing platform 14 is provided with a cylinder mounting lug 16 and a fixed lug 11 at its top. A movable lug 9 is hinged to the fixed lug 11. The movable lug 9 is connected to the support lug 4 through a safety pin 17 and a through hole on the support lug 4. The fixed lug 11 and the lower end of the climbing platform 14 are connected to the guide rail 1 through a guide wheel device.

[0025] The supporting lug is provided with an arc groove for supporting when the platform climbs or descends. The supporting lug is also provided with a hole, which can be connected to the climbing platform through a pin shaft. When multiple groups of pin shafts connect the climbing platform and the supporting lugs, the climbing platform can be stably fixed on the guide rail to meet the normal working requirements of the tower crane.

[0026] Both ends of the climbing beam are provided with load-bearing pins, and the diameter of the load-bearing pin is the same as that of the arc groove on the guide rail supporting lug. The load-bearing pin can be supported in the arc groove of the supporting lug on the guide rail, and transmit the load of the climbing platform and the tower crane to the building.

[0027] As Figure 6 shows, the guide wheel device comprises a front guide ear seat 7, a rear guide ear seat 2, a travelling wheel 20 and a connecting ear seat 8, the travelling wheel 20 is fixed on the front guide ear seat 7 and the rear guide ear seat 2 through a bearing, and the travelling wheel 20 is erected on the guide rail 1, the front guide ear seat 7 and the rear guide ear seat 2 are connected with the connecting ear seat 8 through bolts, the aforesaid fixed ear plate 11 is hinged with the connecting ear seat 8, and the lower end of the climbing platform 14 is hinged with the connecting ear seat 8.

[0028] A larger inclination adjustment range of the climbing platform can be obtained by replacing connecting ear plates with different height dimensions.

[0029] As Figure 10 shows, a hanging claw 10 is hinged on the movable ear plate 9, and the hanging claw 10 is hung and connected in the arc groove of the supporting lug 4. Both the hanging claw 10 and the movable ear plate 9 are hung and connected on the supporting lug 4, which improves safety.

[0030] As Figure 7 and Figure 9 shows, the bottom of the climbing platform 14 is provided with an inclination adjustment device, the inclination adjustment device comprises a hollow casing 22, an adjustment ear plate 3, an angle adjusting screw 15 and a stop nut 19, the casing 22 is provided with internal threads, the adjustment ear plate 3 and the angle adjusting screw 15 are arranged in the casing 22, the head of the adjustment ear plate 3 is connected with the connecting ear plate, the tail of the adjustment ear plate 3 is rotatably connected with the angle adjusting screw 15, and the angle adjusting screw 15 is provided with the stop nut 19.

[0031] Twisting the angle adjusting screw enables the adjusting ear plate to extend and retract inside and outside, so as to realize the inclination adjustment of the climbing platform.

[0032] As Figure 5 shows, the tower crane mounting base plate 21 comprises a "rice"-shaped mounting base, a plurality of groups of mounting holes with different spacings are arranged on four edges of the mounting base along the diagonal direction of the climbing platform, a plurality of support legs 13 are connected on the mounting base through fixing bolts. L is the section of the standard section.

[0033] Tower cranes of different models can be adapted by selecting different mounting holes and different mounting bases.

[0034] In the above technical solution, the lower end of the support lug 4 is a beveled side, which is used to guide the climbing platform's hanging claw.

[0035] The front end of the claw is equipped with a pin, the diameter of which is the same as the diameter of the arc groove on the guide rail support. During the ascent or descent of the climbing platform, it engages with the arc groove on the guide rail support, transferring the load of the tower crane and the climbing platform to the guide rail. Due to the weight of the claw's front end, the climbing platform, after installation, maintains contact with the guide rail due to its own weight. During ascent, it can automatically rotate along the shape of the support to avoid obstruction. During descent, in the event of an accidental fall, the claw will ensure that it engages with the next level support, preventing further descent.

[0036] When the climbing platform 14 is climbing, it serves as the fulcrum for bearing the load of the platform and the tower crane. When the tower crane is operating normally, the climbing platform and the support lugs are fixedly connected by pins, transferring the load of the climbing platform and the tower crane to the building.

[0037] When the tower crane needs to ascend, first rotate the upper structure of the tower crane to a position parallel to the outer surface of the building. Operate the hydraulic station to drive cylinder 18 to place the climbing beam 5 into the arc groove of the adjacent guide rail support 4, transferring the entire load of the climbing platform 14 and the tower crane from the climbing beam 5 to the guide rail 1. At this time, remove the pin connecting the climbing platform and the guide rail. Continue operating the hydraulic station to extend the cylinder. Guided by the guide wheel device and the guide rail 1, the climbing platform will rise along the guide rail. When the hook 10 is reliably hooked into the arc groove of the support 4 of the next guide rail, slightly retract cylinder 18. At this time, the load of the climbing platform 14 and the tower crane is transferred from the climbing beam to the hook. Repeat the above steps to continuously ascend the climbing platform. After reaching the required height, use a pin to pass through the fixing ear plate 11 and the support 4 to fix the climbing platform 14 to the guide rail 1.

[0038] When the tower crane needs to be lowered, first rotate the upper structure of the tower crane to a position parallel to the outer surface of the building. Operate the hydraulic station to drive the cylinder to place the climbing beam into the arc groove of the next-level support lug 4, transferring the entire load of the climbing platform 14 and the tower crane from the climbing beam to the guide rail 1. At this time, remove the pin connecting the climbing platform and the guide rail. Continue operating the hydraulic station to retract the cylinder. The climbing platform will descend along the guide rail due to the guidance of the guide wheel device and the guide rail. When the hook is reliably engaged in the arc groove of the next-level guide rail support lug, slightly retract the cylinder. At this time, the load of the climbing platform and the tower crane will be transferred from the climbing beam to the hook. Repeat the above steps to continuously lower the climbing platform. After reaching the required height, use a pin to pass through the fixed lug plate and the guide rail support lug to fix the climbing platform to the guide rail.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A climbing platform for tower cranes, characterized in that: It comprises a guide rail, a climbing mechanism, a steel structure platform and a guide wheel device. The guide rail is formed by connecting multiple sections in series, and two rows of the guide rail are arranged in parallel, and are fixed on a building through foundation bolts pre-embedded in the wall surface of the building. Equally-spaced support lugs are arranged on the guide rail, an arc-shaped groove is formed in the upper part of each support lug, and a through hole is formed in the support lug. The climbing mechanism comprises a hydraulic station, an oil cylinder and a climbing beam, the climbing beam is hinged with a piston rod of the oil cylinder, two ends of the climbing beam are supported in the arc-shaped grooves of the support lugs, and the oil cylinder is communicated with the hydraulic station. The steel structure platform comprises a tower crane mounting base plate, a climbing platform, an oil cylinder mounting ear plate and a fixed ear plate, the tower crane mounting base plate is connected to the top surface of the climbing platform, the oil cylinder mounting ear plate is arranged on the climbing platform, and the fixed ear plate is arranged at the top of the climbing platform. A movable ear plate is hinged on the fixed ear plate, and the movable ear plate is connected with the support lug through a safety pin and the through hole on the support lug. The lower ends of the fixed ear plate and the climbing platform are connected with the guide rail through the guide wheel device, and an inclination adjusting device is arranged at the bottom of the climbing platform. The inclination adjusting device comprises a hollow sleeve, an adjusting ear plate, an angle adjusting screw rod and a stop nut, the sleeve is provided with internal threads, and the adjusting ear plate and the angle adjusting screw rod are arranged in the sleeve. The head of the adjusting ear plate is connected with the guide wheel device, and the tail of the adjusting ear plate is rotatably connected with the angle adjusting screw rod, and the stop nut is arranged on the angle adjusting screw rod.

2. The tower crane climbing platform according to claim 1, characterized in that: The guide wheel device comprises a guide ear seat, a walking wheel and a connecting ear seat, the walking wheel is fixed on the guide ear seat through a bearing, the walking wheel is erected on the guide rail, the guide ear seat is connected with the connecting ear seat through a bolt, the fixed ear plate is hinged with the connecting ear seat, and the lower end of the climbing platform is hinged with the connecting ear seat.

3. The tower crane climbing platform according to claim 1, characterized in that: A hanging claw is hinged on the movable ear plate, and the hanging claw is hung and connected in the arc-shaped groove of the support lug.

4. The tower crane climbing platform according to claim 1, characterized in that: The tower crane mounting base plate comprises a cross-shaped mounting base, multiple groups of mounting holes with different spacing are arranged on four edges of the mounting base along the diagonal direction of the climbing platform, and a plurality of support legs are connected to the mounting base through fixing bolts.

5. The tower crane climbing platform according to claim 1, characterized in that: The lower end of the support lug is a bevel edge.

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