Hoisting equipment and hoisting method for steel structure of housing construction project

Abstract

The invention discloses steel structure hoisting equipment for housing construction engineering. The steel structure hoisting equipment comprises a driving system; the lifting mechanism is connected with the driving system; the tail end of the lifting rope is connected with the lifting mechanism; the switching mechanism is connected with the head end of the lifting rope; the roller system is arranged on the switching mechanism; the middle part of the balance rope bypasses the roller system; a conversion member; the lower hanging rings are arranged on the lower surface of the conversion piece; the two hoisting assemblies are arranged on the upper surface of the conversion piece and connected with the two ends of the balance rope; the plurality of upper lifting rings are arranged on the upper surface of the conversion piece and connect the conversion piece with the lifting assembly; the two self-rolling mechanisms are respectively connected with the balance rolling shafts of the two hoisting assemblies; the two opening and stopping mechanisms are arranged between the two self-coiling mechanisms and the two hoisting assemblies respectively, and the control ends of the two opening and stopping mechanisms are arranged on the conversion piece; the vertical deviation between a hoisting point and the gravity center of the special-shaped component can be adjusted in a self-adaptive mode, overturning rotation of the special-shaped component is avoided, and hoisting safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of building construction, and in particular to steel structure hoisting equipment and a hoisting method for a building construction project. Background Art

[0002] Steel structures are increasingly used in building construction projects. In unconventional building structures and shapes, such as twisted building appearances, up and down dislocations, or conversions between expansion and contraction, the steel structure components used are non-standard parts, and more steel structure components of specific shapes and structures are required to complete them.

[0003] During normal construction, each steel structure component is hoisted onto the upper portion of the building under construction and subsequently installed and secured on-site to complete the overall construction. However, when there are numerous non-standard steel structure components, pre-assembly is often employed to ensure installation accuracy and convenience. This involves assembling complex components on the ground or in a factory into a larger, often irregular, or special-shaped component. This special-shaped component is then hoisted onto the upper portion of the building under construction and assembled and secured. This approach reduces installation complexity and improves construction efficiency.

[0004] However, due to the large number of parts, complex structure and uneven weight distribution, pre-assembled special-shaped components face the following problems during conventional hoisting to the upper part of the building under construction:

[0005] 1. The hoisting hole position needs to be accurately calculated and determined. In order to keep the pre-assembled special-shaped structure stable during the hoisting process, that is, to prevent longitudinal rotation, it is necessary to calculate the final center of gravity position of the pre-assembled special-shaped structure to avoid its overturning and rotation after hoisting, which will greatly increase the amount of calculation.

[0006] 2. Conflict between the hoisting holes and the structure. Sometimes, in order to ensure that the hoisting position is as close to the center of gravity as possible, it is necessary to design hoisting holes or hoisting ears on the frame. In this case, the hoisting holes may affect the strength of the steel structure and cause structural safety issues. If it is an ear plate, some parts need to be processed before assembly and fixation, otherwise it will affect the aesthetics of the indoor space or outdoor space.

[0007] 3. Lifting design requires a large margin. Even if the lifting holes or lug positions are designed according to the optimal lifting position, during the actual pre-assembly process, the center of gravity of the final special-shaped component will inevitably deviate from the theoretically calculated position. Therefore, to further prevent overturning and rotation during lifting, anti-impact safety measures must be added to all areas of the pre-assembled special-shaped structure, which will greatly increase costs. At the same time, the impact on the lifting equipment and lifting ropes after overturning and rotation will also be significant, posing a greater risk.

[0008] Therefore, when hoisting pre-assembled special-shaped components, how to limit their overturning and rotation before hoisting to ensure hoisting safety while minimizing the structural impact on the component body is a problem that needs to be solved. Summary of the Invention

[0009] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a steel structure hoisting equipment and hoisting method for building construction projects, which can adaptively adjust the vertical deviation between the hoisting point and the center of gravity of the special-shaped component, so as to make the hoisting point and the center of gravity of the special-shaped component coincide vertically as much as possible, avoid the overturning and rotation of the special-shaped component, and improve the safety of hoisting.

[0010] The objective of the present invention is achieved through such technical solution:

[0011] A steel structure hoisting device for a building construction project, comprising:

[0012] Drive system;

[0013] A lifting mechanism connected to the drive system;

[0014] The tail end of the lifting rope is connected to the lifting mechanism, and the lifting mechanism is rotated under the control of the drive system to raise or lower the height of the lifting rope head end;

[0015] A conversion mechanism connected to the head end of the lifting rope;

[0016] A roller system is provided on the conversion mechanism;

[0017] Balance rope, with the middle part passing through the roller system;

[0018] Converter, long rod-shaped;

[0019] A plurality of lower lifting rings are provided on the lower surface of the conversion member to connect the conversion member with the steel structure component to be hoisted; the plane where the lower lifting rings are located is perpendicular to the axis of the conversion member;

[0020] Two hoisting assemblies are arranged on the upper surface of the conversion member; the balance reels of the two hoisting assemblies are respectively connected to the two ends of the balance rope;

[0021] A plurality of upper lifting rings are provided on the upper surface of the conversion member to connect the conversion member and the lifting assembly; the plane where the upper lifting rings are located is perpendicular to the axis of the conversion member;

[0022] Two self-winding mechanisms are connected to the balance reels of the two lifting components respectively, and store energy internally;

[0023] The two opening and stopping mechanisms are respectively arranged between the two self-winding mechanisms and the two lifting components, and their control ends are arranged on the conversion part; in the natural state, the locking self-winding mechanism transfers its internal energy storage to the balance reel of the lifting component; as the opening and stopping mechanism rises under the inclination of the conversion part, the self-winding mechanism is controlled to transfer its internal energy storage to the balance reel of the lifting component.

[0024] Furthermore, the hoisting assembly includes:

[0025] Roll box, U-shaped, with the opening facing upwards;

[0026] The balancing reel passes through the two wing plates of the reel box and is rotatably connected to the reel box; the axial displacement of the balancing reel is limited by locking rings at both ends;

[0027] The ratchet mechanism is arranged outside the winding box, with its fixed end fixedly connected to the winding box, and controls the balancing reel to rotate in one direction under the control of the self-winding mechanism;

[0028] A hanging piece is provided on the lower surface of the winding box; the plane where the hanging piece is located is perpendicular to the axis of the conversion piece;

[0029] The hook has a head end hinged to the hanging piece, and its hook portion passes through the upper hanging ring; the opening of the hook can be closed and locked.

[0030] Furthermore, the self-rolling mechanism includes:

[0031] a speed reduction mechanism, an output end of which is connected to the balance reel;

[0032] A coil spring, wherein the output shaft is connected to the input shaft of the reduction mechanism;

[0033] At least two buffer support legs, divided into two groups, the two groups of buffer support legs are arranged in an eight-shaped shape below the coil spring, and the upper ends are hinged to the lower surface of the coil spring;

[0034] The extended platform has a triangular longitudinal section and a plurality of mounting holes on one side panel; the conversion member is provided with a plurality of corresponding through holes; the extended platform is detachably fixed to the conversion member by screws; the lower end of the buffer support leg is hinged to the extended platform; the control end of the opening and stopping mechanism is arranged on the extension platform, and the opening and stopping end is arranged between the coil spring and the connecting shaft of the deceleration mechanism.

[0035] Furthermore, the housing of the deceleration mechanism is fixedly connected to the winding box; the side of the housing of the deceleration mechanism facing the winding spring is provided with at least two engaging sliding grooves; the axial direction of the engaging sliding grooves is perpendicular to the horizontal plane;

[0036] The opening and stopping mechanism comprises:

[0037] A gear ring, which is externally mounted on the connecting shaft between the coil spring and the reduction mechanism;

[0038] The opening and stopping block has a notch groove with an opening and hanging downward in the middle, and a toothed belt matching the gear ring is provided at the bottom of the notch groove; the opening and stopping block is arranged across the connecting shaft between the coil spring and the speed reduction mechanism; and a locking slide rail matching the locking slide groove is provided on the side of the opening and stopping block facing the locking slide groove;

[0039] The control rod is located directly below the expenditure block, with its lower end fixed on the extension platform and its upper end bent upward to point away from the other opening and stopping mechanism and obliquely upward; when the control rod rises under the tilt of the conversion member, its upper end pushes up the opening and stopping block, forcing the toothed belt and gear ring on the opening and stopping block to separate, thereby releasing the torque output of the torsion spring to the reduction mechanism.

[0040] Furthermore, the conversion mechanism includes:

[0041] A thrust bearing, wherein the upper plate is connected to the head end of the lifting rope, the outer diameter of the lower plate is larger than that of the upper plate, and a limit ring is provided on the upper surface of the lower plate to limit the displacement of the upper plate on the lower plate; the lifting ropes are arranged at the center of the thrust bearing relative to each other and fixedly connected to the lower plate outside the limit ring;

[0042] Two support plates are arranged vertically opposite to each other, and the upper ends are fixedly connected to the lower plate of the thrust bearing;

[0043] The roller system comprises:

[0044] The roller shaft passes through the two support plates and is rotatably connected to the support plates; the roller shaft is provided with a plurality of winding grooves; the middle portion of the balance rope is wound around the winding grooves;

[0045] Two friction-increasing sleeves are externally mounted on both ends of the roller shaft and are fixedly connected to the conversion plate to control the rotation speed of the roller shaft.

[0046] Furthermore, a rotation locking system is included, and the locking system includes:

[0047] A locking plate is arranged in the lower plate of the thrust bearing and is provided with a penetrating locking hole;

[0048] The locking pin is T-shaped and vertically downward, passing through the upper plate of the thrust bearing and pointing to the locking plate, facing the locking hole; the locking pin and the connection line between the two lifting ropes and the connection point of the thrust bearing lower plate are staggered;

[0049] A return spring is sleeved on the locking needle, with an upper end fixedly connected to the horizontal block portion of the locking needle and a lower end fixedly connected to the upper surface of the upper plate of the thrust bearing;

[0050] Locking rope, the head end is connected to the locking needle,

[0051] A locking motor is arranged outside the drive system;

[0052] The locking wire drum is arranged on the lifting structure and is connected to the rotating shaft of the locking motor through a friction sleeve.

[0053] Furthermore, a plurality of rope support frames are provided on the two lifting ropes; the rope support frames include:

[0054] Two rings, each provided with at least two spring protrusions, the rings being placed on the lifting rope, the spring protrusions being pressed against the lifting rope to fix the rings relative to the lifting rope;

[0055] The connecting rod connects the two rings and controls the spacing between the two lifting ropes.

[0056] Furthermore, the lifting mechanism includes:

[0057] Two fixed plates are arranged opposite to each other, the rotating shaft of the driving system passes through the two fixed plates; the rotating shaft of the locking motor passes through the two fixed plates, and the locking wire disc is located between the two fixed plates;

[0058] Two rope-lifting discs are externally mounted on the rotating shaft of the driving system and are located between the two fixed plates.

[0059] Furthermore, it also includes a rope control mechanism; the rope control mechanism includes:

[0060] Two baffles are arranged on the two fixed plates opposite to each other and are located between the two fixed plates; a limit plate is provided on the collar and is opposite to the baffle; when the lifting rope is reeled back to the rope reel, the limit plate and the baffle abut against each other, forcing the collar to slide on the lifting; a push rod is provided vertically on the upper and lower surfaces of the connecting rod;

[0061] The reducer is externally mounted on the rotating shaft of the driving system and is fixed to the fixed plate;

[0062] A transmission rod is rotatably arranged on the outer side of the fixed plate, and a first bevel gear is provided on the upper end; a second bevel gear is provided on the output end of the reducer, and the first bevel gear is meshed with the second bevel gear;

[0063] The control disk is coaxially arranged at the lower end of the transmission rod; the disk surface of the control disk interferes with the limit plate in the vertical direction; the control disk is provided with a control notch, and when the shaft of the drive system rotates, the control notch faces the limit plate, allowing the limit to pass through.

[0064] Further, the following steps are included:

[0065] S1. Set the hoisting line along the center of gravity of the steel structure according to the hoisting environment and space;

[0066] S2. Set up two lifting points on the steel structure along the lifting line. The lifting points should be set up in areas that do not affect the structural strength and the exterior or interior decoration. The line connecting the two lifting points passes through the center of gravity of the steel structure. The two lifting points should be set up symmetrically around the center of gravity as much as possible.

[0067] S3. Place the conversion piece on the hoisting line and make the center of the conversion piece coincide with the center of gravity of the steel structure as much as possible;

[0068] S4. Arrange two lifting assemblies as symmetrically as possible around the center of gravity of the steel structure, and connect the two lifting assemblies to the upper lifting rings corresponding to their positions through hooks;

[0069] S5. Wrap the middle part of the balance rope around the roller shaft, and wrap both ends around the two balance reels and fix them;

[0070] S6. Adjust the distance between the balancing ropes on both sides of the roller shaft and the balancing reels to which they are connected, so that after the balancing ropes are stretched straight along the roller shaft, the vertical projection of the roller shaft is directly opposite the center of gravity of the steel structure.

[0071] S7. According to the weight of the hoisted steel structure, select friction-increasing sleeves with appropriate friction resistance and install them on both sides of the roller shaft; the static friction between the friction-increasing sleeves and the roller shaft should be 0.001-0.005 times the weight of the steel structure;

[0072] S8. Install an extension platform on the side of the conversion piece facing the two lifting components;

[0073] S9. Select a reduction mechanism with a suitable reduction ratio according to the weight of the steel structure and install it on the winding box;

[0074] S10. Select a torsion spring with appropriate torque according to the weight of the steel structure and connect it to the reduction mechanism. Fix the outer gear ring on the connecting shaft. After the torsion spring releases the torque and increases the torque through the reduction mechanism, the winding force of the balance reel shall not be less than 0.8 times the weight of the steel structure.

[0075] S11. Select buffer support legs corresponding to the weight of the steel structure and hinge them to the extension platform and coil spring. The tensile and compressive bearing capacity of the selected buffer support legs shall not be less than 0.8 times the weight of the steel structure.

[0076] S12, placing a stop block capable of locking the torsion spring from rotating across the gear ring of the connecting shaft;

[0077] S13. Connect the control rod to the extension platform and control the gap between the upper end of the control rod and the opening and stopping block. When the control rod is raised to an angle of no more than 2 degrees under the tilting of the conversion member, the upper end of the control rod contacts the opening and stopping block. When the control rod is raised to an angle of no more than 6 degrees under the tilting of the conversion member, the upper end of the control rod pushes against the opening and stopping block, releasing the rotation restriction on the torsion spring.

[0078] S13, charging the torsion spring;

[0079] S14. Connect the locking plate to the lower plate of the thrust bearing, and insert the locking needle through the upper plate of the thrust bearing into the locking hole; the elastic force of the return spring of the locking needle outer sleeve is less than the friction force of the friction sleeve on the locking wire disc;

[0080] S15, connecting the lifting rope to the lower plate of the thrust bearing and the lifting rope disc, and connecting the locking rope to the locking needle and the locking wire disc;

[0081] S16. Install all the rope support brackets on the two lifting ropes and place all the rope support brackets below the control panel;

[0082] S17. The control drive system and the locking motor operate synchronously. Under the action of gravity of the conversion member, the conversion mechanism, the roller system, the hoisting assembly, the self-winding mechanism, the opening and closing mechanism, and the rotary locking system, the lifting rope and the locking rope are extended. During this process, the rope support brackets, acting in conjunction with the friction of the lifting rope and the control notch of the control panel, are evenly spaced on the lifting rope.

[0083] S18. Connect the lifting points of the steel structure to the lower lifting rings corresponding to their positions;

[0084] S19, controlling the drive system and the locking motor to operate synchronously, causing the rope hoisting drum and the locking drum to rotate, and reeling the rope hoisting and locking ropes;

[0085] S20, during the reeling process of the lifting rope, the rope support frame passes through the control notch of the control panel and is limited by the baffle plate to enter the rope reel, and all the rope support frames on the reeled lifting rope are concentrated between the baffle plate and the control panel;

[0086] S21. When the steel structure is lifted to the predetermined position, the drive system and the locking motor are controlled to stop working synchronously. If the angle of the steel structure needs to be adjusted, the locking motor is controlled to work and the locking pin is pulled to separate the locking pin from the locking disk. The steel structure is rotated manually or by equipment in a controlled state so that the final angle of the steel structure meets the requirements.

[0087] S22, controlling the drive system and the locking motor to work synchronously, extending or shortening the lifting rope and the locking rope, so that the steel structure falls to the predetermined position;

[0088] S23. When the steel structure is stably landed or fixed, disconnect the lifting point of the steel structure from the lower lifting ring corresponding to its position.

[0089] Due to the adoption of the above technical solution, the present invention has the following advantages:

[0090] 1. Use the conversion piece to set up multiple lower hanging points connected to the steel structure to increase the safety and stability of the lifting connection with the steel structure; at the same time, two lifting components are set on the conversion piece to help the stability of the lifting.

[0091] 2. The lifting assembly cooperates with the roller system to allow the conversion piece and the steel structure connected to it to tilt and rotate freely, naturally releasing the tilting and rotation process of the steel structure; reducing or avoiding the torque of the upper and lower lifting rings outside the lifting direction, protecting the upper and lower lifting rings, that is, improving the safety of the lifting equipment during the lifting process.

[0092] 3. The self-winding mechanism is controlled by the opening and closing mechanism to reset the overturned and rotating steel structure. This process is adaptive and does not require external participation. It can effectively ensure that the steel structure is in a stable state during the hoisting process and avoid uncontrollable overturning of the steel structure. Specifically, when the steel structure tilts, the opening and closing mechanism at the rising end releases the restriction of the self-winding mechanism, and the winding spring transmits the torque to the balancing reel through the reduction mechanism. The balancing reel will wind up the horizontal rope, forcing the roller shaft to move relative to the descending end of the steel structure. In other words, the relative position of the roller shaft and the center of gravity of the steel structure is adjusted so that the roller shaft coincides with the center of gravity of the steel structure as much as possible, so that the tilt of the steel structure stops or returns to a horizontal state.

[0093] 4. Compared with the conservative bottom hanging method, the horizontal hanging method using conversion parts reduces the cost of protective measures against falling steel structures and effectively improves construction efficiency.

[0094] Other advantages, objects and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] Figure 1 This is a schematic diagram of the structure of the steel structure hoisting equipment for the building construction project in this example.

[0096] Figure 2 yes Figure 1 AA cut-away structural diagram.

[0097] Figure 3 yes Figure 2 Schematic diagram of the top view of the structure after the middle reduction mechanism and the opening and closing block are connected.

[0098] Figure 4 yes Figure 2 Schematic diagram of the cross-section structure of the middle BB.

[0099] Figure 5 yes Figure 4 Enlarged structural diagram at point C in the middle.

[0100] Figure 6 It is a schematic cross-sectional view of the conversion mechanism and roller system in this example.

[0101] Figure 7It is a top view structural diagram of the conversion mechanism and roller system in this example.

[0102] Figure 8 yes Figure 6 Schematic diagram of the DD cut-out structure.

[0103] Figure 9 It is a schematic diagram of the front view structure of the roller system in this example.

[0104] Figure 10 This is a top view of the structure of the locking motor, locking disc, friction sleeve and supporting rope control mechanism of the driving system, lifting mechanism and rotary locking system in this example.

[0105] Figure 11 yes Figure 10 EE cut-away structural diagram.

[0106] Figure 12 yes Figure 11 Schematic diagram of the FF cross-section structure.

[0107] Figure 13 yes Figure 12 Enlarged structural diagram at G in the middle.

[0108] In the figure: 1. Drive system; 21. Fixed plate; 22. Rope hoisting disc; 23. Rope hoisting; 3. Conversion mechanism; 31. Thrust bearing; 311. Upper plate; 312. Lower plate; 3121. Limiting ring; 32. Support plate; 4. Roller system; 41. Roller shaft; 411. Winding groove; 42. Friction-increasing ring; 5. Balance rope; 6. Conversion element; 7. Upper lifting ring; 8. Lower lifting ring; 9. Lifting assembly; 91. Reel box; 92. Balance reel; 93. Ratchet mechanism; 94. Lifting piece; 95. Hook; 101. Speed ​​reduction mechanism; 1011. Embedded slide; 102. Coil spring; 103. Buffer support leg; 104. Extension platform; 111 .Gear ring; 112. Open / Stop block; 1121. Embedded slide rail; 1122. Notch groove; 1123. Toothed belt; 113. Control lever; 121. Locking plate; 1211. Locking hole; 122. Locking needle; 123. Return spring; 124. Locking rope; 125. Locking motor; 126. Locking reel; 127. Friction sleeve; 131. Ring; 1311. Spring top protrusion; 132. Connecting rod; 133. Limit plate; 134. Push rod; 141. Baffle; 142. Reducer; 143. Transmission rod; 144. First bevel gear; 145. Second bevel gear; 146. Control plate; 1461. Control notch. DETAILED DESCRIPTION

[0109] The present invention will be further described below with reference to the embodiments.

[0110] Example:

[0111] like Figure 1-13 As shown, a steel structure hoisting equipment for building construction projects includes:

[0112] Drive system 1;

[0113] A lifting mechanism connected to the drive system 1;

[0114] The tail end of the lifting rope 23 is connected to the lifting mechanism, and the lifting mechanism is rotated under the control of the drive system 1 to raise or lower the height of the head end of the lifting rope 23;

[0115] The conversion mechanism 3 is connected to the head end of the lifting rope 23;

[0116] A roller system 4 is provided on the conversion mechanism 3;

[0117] The balance rope 5 passes through the roller system 4 in the middle;

[0118] Converter 6, long rod-shaped;

[0119] A plurality of lower lifting rings 8 are provided on the lower surface of the conversion member 6 to connect the conversion member 6 with the steel structure component to be hoisted; the plane where the lower lifting rings 8 are located is perpendicular to the axis of the conversion member 6;

[0120] Two hoisting assemblies 9 are provided on the upper surface of the conversion member 6; the balance reels 92 of the two hoisting assemblies 9 are respectively connected to the two ends of the balance rope 5;

[0121] A plurality of upper lifting rings 7 are provided on the upper surface of the conversion member 6 to connect the conversion member 6 with the lifting assembly 9; the plane where the upper lifting rings 7 are located is perpendicular to the axis of the conversion member 6;

[0122] Two self-winding mechanisms are respectively connected to the balance reels 92 of the two hoisting assemblies 9 and store energy internally;

[0123] The two opening and stopping mechanisms are respectively arranged between the two self-winding mechanisms and the two lifting components 9, and their control ends are arranged on the conversion member 6; in the natural state, the locking self-winding mechanism transfers its internal energy to the balance reel 92 of the lifting component 9; as the opening and stopping mechanism rises under the inclination of the conversion member 6, the self-winding mechanism is controlled to transfer its internal energy to the balance reel 92 of the lifting component 9.

[0124] The conversion part 6 is used to set up multiple lower hanging points connected to the steel structure, thereby increasing the safety and stability of the lifting connection with the steel structure; at the same time, two lifting components 9 are set on the conversion part 6 to help the stability of the lifting. The lifting component 9 cooperates with the roller system 4 so that the conversion part 6 and the steel structure connected thereto can freely tilt and rotate, and the tilting and rotation process of the steel structure is naturally released; the torque of the upper lifting ring 7 and the lower lifting ring 8 outside the lifting direction is reduced or avoided, and the upper lifting ring 7 and the lower lifting ring 8 are protected, that is, the safety of the lifting equipment during the lifting process is improved. The self-winding mechanism is controlled by the opening and stopping mechanism to reset the overturned and rotated steel structure, and this process is adaptive and does not require external participation. During the lifting process, it can effectively ensure that the steel structure is in a stable state during the lifting process, and avoid uncontrollable overturning of the steel structure. Compared with the conservative bottom-up hanging method, the horizontal lifting method using the conversion part 6 reduces the cost of protective measures for falling steel structures and effectively improves construction efficiency.

[0125] like Figure 2 As shown, in this embodiment, the hoisting assembly 9 includes:

[0126] The roll box 91 is U-shaped with an upward opening;

[0127] The balancing reel 92 passes through the two wings of the reel box 91 and is rotatably connected to the reel box 91. The balancing reel 92 is limited in axial displacement by locking rings at both ends.

[0128] The ratchet mechanism 93 is arranged outside the winding box 91, and its fixed end is fixedly connected to the winding box 91, and controls the balancing reel 92 to rotate in one direction under the control of the self-winding mechanism;

[0129] The hanging member 94 is provided on the lower surface of the roll box 91; the plane where the hanging member 94 is located is perpendicular to the axis of the conversion member 6;

[0130] The hook 95 has a head end hinged to the hanging piece 94, and its hook portion passes through the upper hanging ring 7; the opening of the hook 95 can be closed and locked.

[0131] In this embodiment, the self-rolling mechanism includes:

[0132] The speed reduction mechanism 101 has an output end connected to the balance reel 92;

[0133] The coil spring 102 has an output shaft connected to the input shaft of the speed reduction mechanism 101;

[0134] At least two buffer support legs 103, divided into two groups, the two groups of buffer support legs 103 are arranged in an eight-shaped shape below the coil spring 102, and the upper ends are hinged to the lower surface of the coil spring 102;

[0135] The extended platform 104 has a triangular longitudinal section and a plurality of mounting holes on one side panel thereof; the conversion member 6 is provided with a plurality of corresponding through holes; the extended platform 104 is detachably fixed to the conversion member 6 by screws; the lower end of the buffer support leg 103 is hinged to the extended platform 104; the control end of the opening and closing mechanism is arranged on the extended platform 104, and the opening and closing end is arranged between the coil spring 102 and the connecting shaft of the deceleration mechanism 101.

[0136] When the steel structure tilts, the buffer support leg 103 can provide relative rotation with respect to the coil spring 102 and the conversion member 6, ensuring the normal state of the coil spring 102. When the coil spring 102 needs to release torque, the buffer support leg 103 can provide a reaction force as a connection with the conversion member 6 to ensure that the coil spring 102 releases torque smoothly.

[0137] The ratchet mechanism 93 can prevent the balance reel 92 from rotating in the reverse direction, that is, after a certain amount of the balance rope 5 is wound up, when the coil spring 102 is released a certain amount and cannot maintain the tension of the balance rope 5 on the balance reel 92, the balance reel 92 is locked.

[0138] like Figure 3 As shown, in this embodiment, the housing of the speed reduction mechanism 101 is fixedly connected to the winding box 91; at least two engaging grooves 1011 are provided on the side of the housing of the speed reduction mechanism 101 facing the winding spring 102; the axial direction of the engaging grooves 1011 is perpendicular to the horizontal plane;

[0139] like Figure 4 、 Figure 5 As shown, the opening and stopping mechanism includes:

[0140] A gear ring 111 is mounted on the connecting shaft between the coil spring 102 and the speed reduction mechanism 101;

[0141] The opening and stopping block 112 has a notch 1122 with an opening extending downward in the middle. A toothed belt 1123 is provided at the bottom of the notch 1122 to match the gear ring 111. The opening and stopping block 112 is arranged astride the connecting shaft between the coil spring 102 and the reduction mechanism 101. A snap-in slide rail 1121 is provided on the side of the opening and stopping block 112 that faces the snap-in slide 1011 to match the snap-in slide 1011.

[0142] The control rod 113 is located directly below the expenditure block, with its lower end fixed on the extension platform 104 and its upper end bent upward and away from the other opening and stopping mechanism to point diagonally upward; when the control rod 113 rises under the tilt of the conversion member 6, its upper end pushes against the opening and stopping block 112, forcing the toothed belt 1123 on the opening and stopping block 112 to separate from the gear ring 111, thereby releasing the torque output of the torsion spring to the reduction mechanism 101.

[0143] The output of the coil spring 102 is restricted by the gravity of the opening and stopping block 112 , and the structure is ingenious.

[0144] like Figure 6 、 Figure 7 As shown, in this embodiment, the conversion mechanism 3 includes:

[0145] The thrust bearing 31 has an upper plate 311 connected to the head end of the lifting rope 23, and a lower plate 312 having an outer diameter larger than the upper plate 311. A limit ring 3121 is provided on the upper surface of the lower plate 312 to limit the displacement of the upper plate 311 on the lower plate 312. The lifting ropes 23 are two and are arranged relative to the center of the thrust bearing 31 and fixedly connected to the lower plate 312 outside the limit ring 3121.

[0146] Two support plates 32 are arranged vertically opposite to each other, and the upper ends are fixedly connected to the lower plate 312 of the thrust bearing 31;

[0147] The roller system 4 includes:

[0148] The roller shaft 41 passes through the two support plates 32 and is rotatably connected to the support plates 32; the roller shaft 41 is provided with a plurality of winding grooves 411; the middle portion of the balance rope 5 is wound around the winding grooves 411;

[0149] Two friction-increasing collars 42 are externally mounted on both ends of the roller shaft 41 and fixedly connected to the conversion plate to control the rotation speed of the roller shaft 41 .

[0150] The friction-increasing collar 42 can prevent the locking rope 124 from flying and entangled with other components when the lifting rope 23 and the locking rope 124 are lifted out of sync, causing the entire unit to malfunction.

[0151] The winding groove 411 on the roller shaft 41 can slow down the speed at which the balance rope 5 moves thereon, that is, it has a certain damping effect on the overturning rotation of the steel structure. Similarly, the setting of the friction-increasing ring 42 is also to improve the damping.

[0152] like Figure 6 、 Figure 8 、 Figure 9 As shown, in this embodiment, a rotation locking system is also included, and the locking system includes:

[0153] The locking plate 121 is disposed in the lower plate 312 of the thrust bearing 31 and is provided with a locking hole 1211 therethrough;

[0154] The locking needle 122 is T-shaped and vertically downwardly arranged, passing through the upper plate 311 of the thrust bearing 31 and pointing to the locking plate 121, facing the locking hole 1211; the connecting line between the locking needle 122 and the two lifting ropes 23 and the connection point of the lower plate 312 of the thrust bearing 31 is staggered;

[0155] The return spring 123 is externally mounted on the locking needle 122 , with its upper end fixedly connected to the horizontal block portion of the locking needle 122 and its lower end fixedly connected to the upper surface of the upper plate 311 of the thrust bearing 31 ;

[0156] The locking rope 124, the head end of which is connected to the locking needle 122,

[0157] The locking motor 125 is arranged outside the drive system 1;

[0158] The locking cable drum 126 is provided on the lifting structure and is connected to the rotating shaft of the locking motor 125 via a friction sleeve 127 .

[0159] like Figure 1 、 Figure 10 、 Figure 11 As shown, in this embodiment, a plurality of rope support frames are provided on the two lifting ropes 23; the rope support frames include:

[0160] Two rings 131 are provided with at least two spring protrusions 1311 inside. The rings 131 are placed on the lifting rope 23. The spring protrusions 1311 are pressed against the lifting rope 23 to fix the rings 131 on the lifting rope 23.

[0161] The connecting rod 132 connects the two rings 131 and controls the spacing of the two lifting ropes 23.

[0162] The rope support frame can stretch the two lifting ropes 23, thereby relatively limiting the torsion of the lifting ropes 23, that is, relatively controlling the rotation of the hoisted steel structure during the hoisting process. This can reduce the space requirement during the hoisting process of the steel structure and avoid uncontrollable rotation.

[0163] like Figure 1 、 Figure 10 、 Figure 11 As shown, in this embodiment, the lifting mechanism includes:

[0164] Two fixed plates 21 are arranged opposite to each other, and the rotating shaft of the driving system 1 passes through the two fixed plates 21; the rotating shaft of the locking motor 125 passes through the two fixed plates 21, and the locking wire disc 126 is located between the two fixed plates 21;

[0165] The two rope-lifting discs 22 are externally mounted on the rotating shaft of the driving system 1 and are located between the two fixing plates 21 .

[0166] like Figure 11 、 Figure 12 As shown, in this embodiment, a rope control mechanism is further included; the rope control mechanism includes:

[0167] Two baffles 141 are disposed oppositely on the two fixed plates 21 and are located between the two fixed plates 21. A limit plate 133 is provided on the collar 131 and is opposite to the baffle 141. When the lifting rope 23 is reeled back to the rope reel 22, the limit plate 133 abuts against the baffle 141, forcing the collar 131 to slide upward. A push rod 134 is vertically provided on both the upper and lower surfaces of the connecting rod 132.

[0168] The reducer 142 is mounted on the rotating shaft of the driving system 1 and is fixed to the fixing plate 21;

[0169] A transmission rod 143 is rotatably disposed on the outer side of the fixed plate 21 and has a first bevel gear 144 at its upper end. A second bevel gear 145 is disposed on the output end of the reducer 142, and the first bevel gear 144 meshes with the second bevel gear 145.

[0170] The control disk 146 is coaxially arranged at the lower end of the transmission rod 143; the disk surface of the control disk 146 interferes with the limit plate 133 in the vertical direction; the control disk 146 is provided with a control notch 1461, and when the shaft of the drive system 1 rotates, the control notch 1461 is opposite to the limit plate 133, allowing the control disk 146 to pass through.

[0171] By controlling the reduction ratio of the reducer 142, the spacing between the support rope bracket and the lifting rope 23 can be controlled, thereby ensuring better anti-rotation purpose.

[0172] In this embodiment, the method for using the steel structure hoisting equipment for a building construction project includes the following steps:

[0173] S1. Set the hoisting line along the center of gravity of the steel structure according to the hoisting environment and space;

[0174] S2. Set up two lifting points on the steel structure along the lifting line. The lifting points should be set up in areas that do not affect the structural strength and the exterior or interior decoration. The line connecting the two lifting points passes through the center of gravity of the steel structure. The two lifting points should be set up symmetrically around the center of gravity as much as possible.

[0175] S3. Place the conversion member 6 on the hoisting line, aligning the center of the conversion member 6 with the center of gravity of the steel structure as closely as possible. S4. Arrange two hoisting assemblies 9 as symmetrically as possible around the center of gravity of the steel structure, and connect the two hoisting assemblies 9 to the corresponding upper hoisting rings 7 via a hook 95.

[0176] S5. Wrap the middle part of the balance rope 5 around the roller shaft 41, and wrap the two ends around the two balance reels 92 for fixation;

[0177] S6. Adjust the distance between the balancing ropes 5 on both sides of the roller shaft 41 and the balancing reels 92 to which they are connected, so that after the balancing ropes 5 are stretched upward by the roller shaft 41, the vertical projection of the roller shaft 41 is directly opposite the center of gravity of the steel structure.

[0178] S7. According to the weight of the hoisted steel structure, select friction-increasing sleeves 42 with appropriate friction resistance and install them on both sides of the roller shaft 41; the static friction between the friction-increasing sleeves 42 and the roller shaft 41 is 0.001-0.005 times the weight of the steel structure;

[0179] S8. Install the extension platform 104 on the side of the conversion member 6 facing the two lifting components 9;

[0180] S9. Select a reduction mechanism 101 with a suitable reduction ratio according to the weight of the steel structure and install it on the winding box 91;

[0181] S10. Select a torsion spring with appropriate torque according to the weight of the steel structure and connect it to the speed reduction mechanism 101. Fix the outer gear ring 111 on the connecting shaft. After the torsion spring releases the torque and increases the torque through the speed reduction mechanism 101, the winding force of the balancing reel 92 is not less than 0.8 times the weight of the steel structure.

[0182] S11. Select a buffer support leg 103 corresponding to the weight of the steel structure and hinge it to the extension platform 104 and the coil spring 102. The tensile and compressive bearing capacity of the selected buffer support leg 103 is not less than 0.8 times the weight of the steel structure.

[0183] S12, placing the stop block 112 that can lock the torsion spring from rotating across the gear ring 111 of the connecting shaft;

[0184] S13. Connect the control rod 113 to the extension platform 104 and control the gap between the upper end of the control rod 113 and the opening and stopping block 112. When the control rod 113 is raised to an angle of no more than 2 degrees under the tilt of the conversion member 6, the upper end of the control rod 113 contacts the opening and stopping block 112. When the control rod 113 is raised to an angle of no more than 6 degrees under the tilt of the conversion member 6, the upper end of the control rod 113 pushes against the opening and stopping block 112, releasing the rotation restriction on the torsion spring.

[0185] S13, charging the torsion spring;

[0186] S14. Connect the locking plate 121 to the lower plate 312 of the thrust bearing 31, and insert the locking needle 122 through the upper plate 311 of the thrust bearing 31 into the locking hole 1211; the elastic force of the return spring 123 on the outer sleeve of the locking needle 122 is less than the friction force of the friction sleeve 127 on the locking wire disc 126;

[0187] S15, connect the lifting rope 23 to the lower plate 312 of the thrust bearing 31 and the lifting rope disc 22, and connect the locking rope 124 to the locking needle 122 and the locking wire disc 126;

[0188] S16, install all the rope support frames on the two lifting ropes 23, and place all the lifting ropes 23 below the control panel 146;

[0189] S17: The control drive system 1 and the locking motor 125 operate synchronously. Under the action of gravity of the conversion member 6, the conversion mechanism 3, the roller system 4, the hoisting assembly 9, the self-winding mechanism, the opening and closing mechanism, and the rotary locking system, the lifting rope 23 and the locking rope 124 are extended. During this process, the rope support frame, acting in conjunction with the friction of the lifting rope 23 and the control notch 1461 of the control plate 146, is evenly spaced on the lifting rope 23.

[0190] S18, connecting the lifting point of the steel structure to the lower lifting ring 8 corresponding to its position;

[0191] S19, controlling the driving system 1 and the locking motor 125 to work synchronously, causing the rope hoisting drum 22 and the locking drum 126 to rotate, and winding the rope hoisting drum 23 and the locking rope 124;

[0192] S20, during the reeling process of the lifting rope 23, the rope support frame is limited by the baffle 141 through the control notch 1461 of the control disk 146 and enters the rope reel 22. All the rope support frames on the reeled lifting rope 23 are concentrated between the baffle 141 and the control disk 146.

[0193] S21. When the steel structure is lifted to the predetermined position, the drive system 1 and the locking motor 125 are controlled to stop working synchronously; if the angle of the steel structure needs to be adjusted, the locking motor 125 is controlled to work and the locking pin 122 is pulled up so that the locking pin 122 is separated from the locking disk 121; the steel structure is rotated manually or by equipment in a controlled state so that the final angle of the steel structure meets the requirements.

[0194] S22, controlling the driving system 1 and the locking motor 125 to work synchronously, extending or shortening the lifting rope 23 and the locking rope 124, so that the steel structure falls to the predetermined position;

[0195] S23. When the steel structure is stably landed or fixed, the lifting point of the steel structure is connected to or disconnected from the lower lifting ring 8 corresponding to its position.

[0196] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A steel structure hoisting equipment for building construction, characterized in that: include: Drive system; A lifting mechanism connected to the drive system; The tail end of the lifting rope is connected to the lifting mechanism, and the lifting mechanism is rotated under the control of the drive system to raise or lower the height of the lifting rope head end; A conversion mechanism connected to the head end of the lifting rope; A roller system is provided on the conversion mechanism; Balance rope, with the middle part passing through the roller system; Converter, long rod-shaped; A plurality of lower lifting rings are provided on the lower surface of the conversion member to connect the conversion member with the steel structure component to be hoisted; the plane where the lower lifting rings are located is perpendicular to the axis of the conversion member; Two hoisting assemblies are arranged on the upper surface of the conversion member; the balance reels of the two hoisting assemblies are respectively connected to the two ends of the balance rope; A plurality of upper lifting rings are provided on the upper surface of the conversion member to connect the conversion member and the lifting assembly; the plane where the upper lifting rings are located is perpendicular to the axis of the conversion member; Two self-winding mechanisms are connected to the balance reels of the two lifting components respectively, and store energy internally; The two opening and stopping mechanisms are respectively arranged between the two self-winding mechanisms and the two lifting components, and their control ends are arranged on the conversion part; in the natural state, the locking self-winding mechanism transfers its internal energy storage to the balance reel of the lifting component; as the opening and stopping mechanism rises under the inclination of the conversion part, the self-winding mechanism is controlled to transfer its internal energy storage to the balance reel of the lifting component.

2. The steel structure hoisting equipment for building construction according to claim 1, characterized in that: The hoisting assembly includes: Roll box, U-shaped, with the opening facing upwards; The balancing reel passes through the two wing plates of the reel box and is rotatably connected to the reel box; the axial displacement of the balancing reel is limited by locking rings at both ends; The ratchet mechanism is arranged outside the winding box, with its fixed end fixedly connected to the winding box, and controls the balancing reel to rotate in one direction under the control of the self-winding mechanism; A hanging piece is provided on the lower surface of the winding box; the plane where the hanging piece is located is perpendicular to the axis of the conversion piece; The hook has a head end hinged to the hanging piece, and its hook portion passes through the upper hanging ring; the opening of the hook can be closed and locked.

3. The steel structure hoisting equipment for building construction according to claim 2, characterized in that: The self-winding mechanism comprises: a speed reduction mechanism, an output end of which is connected to the balance reel; A coil spring, wherein the output shaft is connected to the input shaft of the reduction mechanism; At least two buffer support legs, divided into two groups, the two groups of buffer support legs are arranged in an eight-shaped shape below the coil spring, and the upper ends are hinged to the lower surface of the coil spring; The extended platform has a triangular longitudinal section and a plurality of mounting holes on one side panel; the conversion member is provided with a plurality of corresponding through holes; the extended platform is detachably fixed to the conversion member by screws; the lower end of the buffer support leg is hinged to the extended platform; the control end of the opening and stopping mechanism is arranged on the extension platform, and the opening and stopping end is arranged between the coil spring and the connecting shaft of the deceleration mechanism.

4. The steel structure hoisting equipment for building construction according to claim 3, characterized in that: The housing of the deceleration mechanism is fixedly connected to the winding box; at least two engaging slots are provided on the side of the housing of the deceleration mechanism facing the winding spring; the axial direction of the engaging slots is perpendicular to the horizontal plane; The opening and stopping mechanism comprises: A gear ring, which is externally mounted on the connecting shaft between the coil spring and the reduction mechanism; The opening and stopping block has a notch groove with an opening and hanging downward in the middle, and a toothed belt matching the gear ring is provided at the bottom of the notch groove; the opening and stopping block is arranged across the connecting shaft between the coil spring and the speed reduction mechanism; and a locking slide rail matching the locking slide groove is provided on the side of the opening and stopping block facing the locking slide groove; The control rod is located directly below the expenditure block, with its lower end fixed on the extension platform and its upper end bent upward to point away from the other opening and stopping mechanism and obliquely upward; when the control rod rises under the tilt of the conversion member, its upper end pushes up the opening and stopping block, forcing the toothed belt and gear ring on the opening and stopping block to separate, thereby releasing the torque output of the torsion spring to the reduction mechanism.

5. The steel structure hoisting equipment for building construction according to claim 4, characterized in that: The conversion mechanism comprises: A thrust bearing, wherein the upper plate is connected to the head end of the lifting rope, the outer diameter of the lower plate is larger than that of the upper plate, and a limit ring is provided on the upper surface of the lower plate to limit the displacement of the upper plate on the lower plate; the lifting ropes are arranged at the center of the thrust bearing relative to each other and fixedly connected to the lower plate outside the limit ring; Two support plates are arranged vertically opposite to each other, and the upper ends are fixedly connected to the lower plate of the thrust bearing; The roller system comprises: The roller shaft passes through the two support plates and is rotatably connected to the support plates; the roller shaft is provided with a plurality of winding grooves; the middle portion of the balance rope is wound around the winding grooves; Two friction-increasing sleeves are externally mounted on both ends of the roller shaft and are fixedly connected to the conversion plate to control the rotation speed of the roller shaft.

6. The steel structure hoisting equipment for building construction according to claim 5, characterized in that: Also included is a rotation locking system, the locking system comprising: A locking plate is arranged in the lower plate of the thrust bearing and is provided with a penetrating locking hole; The locking pin is T-shaped and vertically downward, passing through the upper plate of the thrust bearing and pointing to the locking plate, facing the locking hole; the locking pin and the connection line between the two lifting ropes and the connection point of the thrust bearing lower plate are staggered; A return spring is sleeved on the locking needle, with an upper end fixedly connected to the horizontal block portion of the locking needle and a lower end fixedly connected to the upper surface of the upper plate of the thrust bearing; Locking rope, the head end is connected to the locking needle, A locking motor is arranged outside the drive system; The locking wire drum is arranged on the lifting structure and is connected to the rotating shaft of the locking motor through a friction sleeve.

7. The steel structure hoisting equipment for building construction according to claim 6, characterized in that: A plurality of rope support frames are provided on the two lifting ropes; the rope support frames include: Two rings, each provided with at least two spring protrusions, the rings being placed on the lifting rope, the spring protrusions being pressed against the lifting rope to fix the rings relative to the lifting rope; The connecting rod connects the two rings and controls the spacing between the two lifting ropes.

8. The steel structure hoisting equipment for building construction according to claim 7, characterized in that: The lifting mechanism comprises: Two fixed plates are arranged opposite to each other, the rotating shaft of the driving system passes through the two fixed plates; the rotating shaft of the locking motor passes through the two fixed plates, and the locking wire disc is located between the two fixed plates; Two rope-lifting discs are externally mounted on the rotating shaft of the driving system and are located between the two fixed plates.

9. The steel structure hoisting equipment for building construction according to claim 8, characterized in that: Also included is a rope control mechanism; the rope control mechanism includes: Two baffles are arranged on the two fixed plates opposite to each other and are located between the two fixed plates; a limit plate is provided on the collar and is opposite to the baffle; when the lifting rope is reeled back to the rope reel, the limit plate and the baffle abut against each other, forcing the collar to slide on the lifting; a push rod is provided vertically on the upper and lower surfaces of the connecting rod; The reducer is externally mounted on the rotating shaft of the driving system and is fixed to the fixed plate; A transmission rod is rotatably arranged on the outer side of the fixed plate, and a first bevel gear is provided on the upper end; a second bevel gear is provided on the output end of the reducer, and the first bevel gear is meshed with the second bevel gear; The control disk is coaxially arranged at the lower end of the transmission rod; the disk surface of the control disk interferes with the limit plate in the vertical direction; the control disk is provided with a control notch, and when the shaft of the drive system rotates, the control notch faces the limit plate, allowing the limit to pass through.

10. The method for using the steel structure hoisting equipment for building construction according to claim 9, characterized in that: The following steps are involved: S1. Set the hoisting line along the center of gravity of the steel structure according to the hoisting environment and space; S2. Set up two lifting points on the steel structure along the lifting line. The lifting points should be set up in areas that do not affect the structural strength and the exterior or interior decoration. The line connecting the two lifting points passes through the center of gravity of the steel structure. The two lifting points should be set up symmetrically around the center of gravity as much as possible. S3. Place the conversion piece on the hoisting line and make the center of the conversion piece coincide with the center of gravity of the steel structure as much as possible; S4. Arrange two lifting assemblies as symmetrically as possible around the center of gravity of the steel structure, and connect the two lifting assemblies to the upper lifting rings corresponding to their positions through hooks; S5. Wrap the middle part of the balance rope around the roller shaft, and wrap both ends around the two balance reels and fix them; S6. Adjust the distance between the balancing ropes on both sides of the roller shaft and the balancing reels to which they are connected, so that after the balancing ropes are stretched straight along the roller shaft, the vertical projection of the roller shaft is directly opposite the center of gravity of the steel structure. S7. According to the weight of the hoisted steel structure, select friction-increasing sleeves with appropriate friction resistance and install them on both sides of the roller shaft; the static friction between the friction-increasing sleeves and the roller shaft should be 0.001-0.005 times the weight of the steel structure; S8. Install an extension platform on the side of the conversion piece facing the two lifting components; S9. Select a reduction mechanism with a suitable reduction ratio according to the weight of the steel structure and install it on the winding box; S10. Select a torsion spring with appropriate torque according to the weight of the steel structure and connect it to the reduction mechanism. Fix the outer gear ring on the connecting shaft. After the torsion spring releases the torque and increases the torque through the reduction mechanism, the winding force of the balance reel shall not be less than 0.8 times the weight of the steel structure. S11. Select buffer support legs corresponding to the weight of the steel structure and hinge them to the extension platform and coil spring. The tensile and compressive bearing capacity of the selected buffer support legs shall not be less than 0.8 times the weight of the steel structure. S12, placing a stop block capable of locking the torsion spring from rotating across the gear ring of the connecting shaft; S13. Connect the control rod to the extension platform and control the gap between the upper end of the control rod and the opening and stopping block. When the control rod is raised to an angle of no more than 2 degrees under the tilting of the conversion member, the upper end of the control rod contacts the opening and stopping block. When the control rod is raised to an angle of no more than 6 degrees under the tilting of the conversion member, the upper end of the control rod pushes against the opening and stopping block, releasing the rotation restriction on the torsion spring. S13, charging the torsion spring; S14. Connect the locking plate to the lower plate of the thrust bearing, and insert the locking needle through the upper plate of the thrust bearing into the locking hole; the elastic force of the return spring of the locking needle outer sleeve is less than the friction force of the friction sleeve on the locking wire disc; S15, connecting the lifting rope to the lower plate of the thrust bearing and the lifting rope disc, and connecting the locking rope to the locking needle and the locking wire disc; S16. Install all the rope support brackets on the two lifting ropes and place all the rope support brackets below the control panel; S17. The control drive system and the locking motor operate synchronously. Under the action of gravity of the conversion member, the conversion mechanism, the roller system, the hoisting assembly, the self-winding mechanism, the opening and closing mechanism, and the rotary locking system, the lifting rope and the locking rope are extended. During this process, the rope support brackets, acting in conjunction with the friction of the lifting rope and the control notch of the control panel, are evenly spaced on the lifting rope. S18. Connect the lifting points of the steel structure to the lower lifting rings corresponding to their positions; S19, controlling the drive system and the locking motor to operate synchronously, causing the rope hoisting drum and the locking drum to rotate, and reeling the rope hoisting and locking ropes; S20, during the reeling process of the lifting rope, the rope support frame passes through the control notch of the control panel and is limited by the baffle plate to enter the rope reel, and all the rope support frames on the reeled lifting rope are concentrated between the baffle plate and the control panel; S21. When the steel structure is lifted to the predetermined position, the drive system and the locking motor are controlled to stop working synchronously. If the angle of the steel structure needs to be adjusted, the locking motor is controlled to work and the locking pin is pulled to separate the locking pin from the locking disk. The steel structure is rotated manually or by equipment in a controlled state so that the final angle of the steel structure meets the requirements. S22, controlling the drive system and the locking motor to work synchronously, extending or shortening the lifting rope and the locking rope, so that the steel structure falls to the predetermined position; S23. When the steel structure is stably landed or fixed, disconnect the lifting point of the steel structure from the lower lifting ring corresponding to its position.

Images