Factory prefabricated building floor construction machine

Abstract

The present invention relates to the technical field of special equipment for building construction, and particularly relates to a factory prefabricated building floor construction machine. The factory prefabricated building floor construction machine includes a truss platform, a lifting climbing frame, a hydraulic jacking system, a hoisting system, and a ceiling; the hydraulic jacking system includes support box girders arranged at intervals in the up and down directions and jacking cylinders connected between the two support box girders. Movable supporting legs are movably assembled at the left and right ends of the support box girders respectively, and the movable supporting legs are used for being clamped in reserved holes on the prefabricated building wall. The jacking cylinders are connected to the lifting climbing frame; the hoisting system includes a hoisting support, two transverse hoisting tracks, a longitudinal hoisting track, and a hoisting assembly. The hoisting assembly includes a suspension seat movably assembled on the longitudinal hoisting track, a winch hoisting machine installed at the top of the suspension seat, and a telescopic sleeve installed at the bottom of the suspension seat. The present invention can realize the conversion from a soft hook to a hard hook, without the need for manual repeated adjustment of the hoisted building components; it can reduce the use of steel and save costs.

Description

Technical Field

[0001] The present invention relates to the technical field of special equipment for building construction, and particularly to a factory prefabricated building floor building machine. Background Art

[0002] Currently, it is a period of rapid development of high-rise and super high-rise buildings. More and more high-rise buildings are emerging, and the construction difficulty of buildings is gradually increasing. The simple tower crane system can no longer meet the needs of high-rise buildings. In addition, over-reliance on tower cranes is not conducive to the early completion of the construction period. The new industrial intelligent construction technology "aerial building machine" is an equipment platform and supporting construction technology independently developed in China. The aerial building machine and construction technology use mechanical operations and intelligent control methods to realize the industrial intelligent construction of cast-in-place reinforced concrete for high-rise residential buildings. An obvious feature of it is that all the technological processes are concentrated and completed layer by layer in the air, so it is also called the "aerial building machine". This equipment platform simulates a mobile building factory, moves the factory to the construction site, and uses mechanical operations and intelligent control means to cooperate with the existing commercial concrete supply chain and concrete high-altitude pumping technology to synchronously construct the main structure above the ground and the integrated insulation and finishing panels layer by layer. It uses machines to replace manual labor to realize the overall cast-in-place construction of high-rise and super high-rise reinforced concrete.

[0003] An existing building floor building machine, such as an aerial building machine disclosed in the authorized announcement number CN104563504B, includes a main body space lifting platform, an exterior wall decoration lifting platform, a tower crane and a control device. Among them, the main body space lifting platform includes a main body steel frame platform, main body lifting legs for supporting the main body steel frame platform, a main body elevator for adjusting the height of the main body lifting legs, a main body mold for forming the wall structure, a concrete conveying device, a concrete distributing machine and a spraying device. Compared with most existing manual building methods, using the above-mentioned aerial building machine can greatly improve the building construction efficiency. However, the above-mentioned aerial building machine also has corresponding disadvantages. For example, the main body lifting legs of the above-mentioned aerial building machine need to be increased level by level with the construction height of the floor, which increases the steel consumption. In addition, the tower crane is arranged above the main body steel frame platform and its position is relatively fixed. When lifting prefabricated building components, a large rotation amplitude is required. Below the main body steel platform is the already built floor. Once the tower crane driver fails to control the lifting height well and rotates the tower crane, it is easy to collide with the already built floor. Moreover, the prefabricated building components being lifted are prone to yaw during the entire lifting process. When the tower crane lowers it to the designated position, workers still need to repeatedly adjust the prefabricated building components being lifted to accurately place the prefabricated building components being lifted in place, and the operation is relatively cumbersome. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a factory prefabricated building construction machine to solve the technical problems in the prior art that the aerial construction machine requires a large amount of steel, the tower crane needs to be adjusted repeatedly and there are potential safety hazards.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A factory prefabricated building construction machine, comprising:

[0007] A truss platform, which is a rectangular frame structure, and the projection of the truss platform in the up and down directions covers the prefabricated building to be constructed;

[0008] Lifting climbing frames, which are detachably connected to the bottom of the truss platform, and a plurality of them are arranged on the front and rear sides of the truss platform;

[0009] A hydraulic jacking system, which is arranged in one-to-one correspondence with the lifting climbing frames, includes support box girders arranged at intervals in the up and down directions and jacking cylinders connected between the two support box girders. The left and right ends of the support box girders are respectively movably assembled with movable legs. The hydraulic jacking system also includes support cylinders arranged at the left and right ends of each support box girder. The piston rods of the support cylinders are in transmission connection with the corresponding movable legs. The piston rods of the jacking cylinders are connected to the corresponding lifting climbing frames to drive the lifting climbing frames to move up and down. The movable legs are used to be clamped in the reserved holes on the prefabricated building wall;

[0010] A hoisting system, including a hoisting bracket connected to the truss platform, two transverse hoisting tracks installed on the hoisting bracket and extending in the left and right directions, a longitudinal hoisting track extending in the front and rear directions and movably assembled in the transverse hoisting tracks in the left and right directions, and a hoisting assembly movably assembled on the longitudinal hoisting track. The hoisting assembly includes a suspension seat movably assembled on the longitudinal hoisting track, a winch hoist installed on the top of the suspension seat, and a telescopic sleeve installed on the bottom of the suspension seat. The winch hoist includes a driving motor and at least four drums in transmission connection with the driving motor; The telescopic sleeve includes a fixed barrel section and a plurality of telescopic barrel sections sleeved and coaxial with each other installed in the fixed barrel section. Each telescopic barrel section has a bottom plate. A steel wire rope is wound around each drum. Each steel wire rope passes through the bottom plates of each telescopic barrel section at the same time. The bottom ends of the steel wire ropes are commonly connected to a hanging plate. A plurality of hooks are fixedly connected to the side of the hanging plate facing away from the telescopic sleeve. The side of the hanging plate facing the telescopic sleeve is used to support the telescopic sleeve and is provided with a limit post in plug-in fit with the telescopic barrel section with the smallest inner diameter;

[0011] A ceiling, which is connected above the truss platform and has an open state and a retracted state. When the ceiling is in the open state, it covers the truss platform;

[0012] When the hoisting assembly performs hoisting operations above the truss platform, the limit post is always in plug-in fit with the telescopic barrel section with the smallest inner diameter.

[0013] The beneficial effects of the above technical solution are as follows: The building floor construction machine of the present invention can be used for construction in bad weather such as rainy days and snowy days when the ceiling is in the open and closed state, which is equivalent to construction inside a factory; during the hoisting process, the conversion between a soft hook and a hard hook can be realized, that is, the winch releases the steel wire rope, so that the hanging plate together with the hook is lowered to the ground for hoisting building components. The process of the winch winding the steel wire rope is the process of the building components gradually rising. When the limit post on the hanging plate is inserted and matched with the telescopic cylinder section with the smallest inner diameter, the hanging plate and the telescopic sleeve are equivalent to a whole. During the continuous winding of the steel wire rope by the winch, the hanging plate supports the telescopic cylinder section and is lifted upward until all the telescopic cylinder sections are retracted into the fixed cylinder section. At this time, the longitudinal hoisting track can be moved above the truss platform to lower the building components to the set position. Since the hoisting assembly is hoisting above the truss platform, the limit post is always inserted and matched with the telescopic cylinder section with the smallest inner diameter. At this time, the hanging plate and the hook are always kept as a whole with the telescopic sleeve, and the steel wire rope connected to the hanging plate is limited by each telescopic cylinder section and will not swing. The whole hoisting assembly is equivalent to a hard hook, and the building components can be directly lowered to the corresponding position without manual adjustment of the hoisted building components. The hydraulic jacking system uses movable legs to be clamped with the reserved holes on the building wall to support the entire truss platform. During the lifting process, only the jacking oil cylinder and the supporting oil cylinder need to be controlled to move the entire construction machine up and down, without adding a lifting scaffold, greatly reducing the use of steel materials and saving costs.

[0014] Further, two transmission blocks are provided at the top of the hanging seat, and the two transmission blocks are respectively arranged at the front and rear ends of the hanging seat. The longitudinal hoisting track includes two lead screws arranged at intervals and both threadedly connected to each transmission block. The lead screws are drivingly connected to a moving motor.

[0015] Beneficial effects: The movement of the hoisting assembly in the front and rear directions is more stable, and the thread has a self-locking function, so the hoisting assembly is not easy to shift.

[0016] Further, two pairs of support plates arranged at intervals in the left-right direction are provided at the top of the hanging seat. The two support plates in each pair are arranged in parallel at intervals in the front-rear direction. A transmission shaft is rotatably assembled between the two support plates in each pair. Two drums arranged at intervals are fixedly connected to the transmission shaft. The transmission shafts on the two pairs of support plates are parallel in the left-right direction. A driving gear is fixedly connected to the output shaft of the driving motor. Transmission gears meshing with the driving gear are respectively fixed on the two transmission shafts.

[0017] Beneficial effects: Using one driving motor can simultaneously realize the synchronous operation of four drums, reduce the number of driving motors used, is beneficial to the reasonable arrangement of the space on the hanging seat, and saves costs.

[0018] Further, a locking rod is rotatably assembled beside at least one transmission gear on the suspension seat. A locking groove for locking and cooperating with the teeth on the corresponding transmission gear is provided on the locking rod. The locking groove is located below the transmission gear. An electrically telescopic rod that can be telescoped up and down is connected to the bottom plate of the telescopic cylinder section with the largest inner diameter at the position corresponding to the locking rod. When the bottom plate of the telescopic cylinder section with the largest inner diameter contacts the suspension seat, the electrically telescopic rod presses the locking rod to make the locking groove lock and cooperate with the teeth on the corresponding transmission gear.

[0019] Beneficial effects: It is beneficial to achieve double locking. When the self-locking structure in the drive motor fails, the locking rod can lock the corresponding transmission gear to prevent the transmission gear from reversing and causing the lifted building component to fall. The use of an electrically telescopic rod can unlock the locking rod without affecting subsequent lowering operations.

[0020] Further, in any two adjacent cylinder sections along the radial direction of the telescopic sleeve from outside to inside, a plurality of notch chutes extending in the up and down directions are provided on the circumferential direction of the outer cylinder section, and sliders corresponding to the notch chutes one by one are provided on the circumferential direction of the inner cylinder section.

[0021] Beneficial effects: Facilitate the extension and retraction of the telescopic cylinder section.

[0022] Further, one side of the lower support box girder is provided with a guiding upright column extending in the up and down direction, and the upper support box girder is provided with a guiding cylinder coaxially and guidingly cooperating with the guiding upright column.

[0023] Beneficial effects: Ensure the guiding when the entire building construction machine rises, and avoid deviation and collision with the building wall.

[0024] Further, a plurality of guiding grooves extending in the up and down direction are provided on the circumferential direction of the guiding upright column. Anti-falling clamping blocks arranged at intervals in the up and down direction are provided in the guiding grooves. A guiding disc is provided at the bottom end of the guiding cylinder. Anti-falling rods are rotatably assembled on the circumference of the guiding disc at positions corresponding to the respective guiding grooves. The anti-falling rods are used to be stuck on the corresponding anti-falling clamping blocks when the upper support box girder descends.

[0025] Beneficial effects: In case of accidental cylinder slipping, the anti-falling rods can be stuck on the corresponding anti-falling clamping blocks to prevent the whole from falling significantly and causing safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of the factory prefabricated building construction machine of the present invention;

[0027] Figure 2 is the top view of the suspension seat in the factory prefabricated building construction machine of the present invention;

[0028] Figure 3 is the bottom view of the suspension seat in the factory prefabricated building construction machine of the present invention;

[0029] Figure 4 It is a schematic diagram of the locking relationship among the locking rod, transmission gear and telescopic sleeve in the factory prefabricated building floor construction machine of the present invention;

[0030] Figure 5 It is a schematic diagram of the assembly relationship between the guiding column and the anti-falling rod in the factory prefabricated building floor construction machine of the present invention.

[0031] Reference numerals: 1 - truss platform, 2 - lifting climbing frame, 3 - building wall, 4 - supporting box girder, 5 - jacking oil cylinder, 6 - movable support leg, 7 - supporting oil cylinder, 8 - guiding column, 9 - guiding cylinder, 10 - guiding disc, 11 - anti-falling rod, 12 - anti-falling chuck, 13 - transmission plate, 14 - hanging seat, 15 - hanging plate, 16 - hook, 17 - transmission block, 18 - fixed cylinder section, 19 - telescopic cylinder section, 20 - bottom plate, 21 - notch chute, 22 - slider, 23 - drum, 24 - transmission shaft, 25 - driving motor, 26 - driving gear, 27 - transmission gear, 29 - locking rod, 30 - locking groove, 31 - electric telescopic rod, 32 - hoisting bracket, 33 - transverse hoisting track, 34 - support plate, 35 - steel wire rope, 36 - limit column. Detailed implementation manners

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0033] Specific embodiments of the factory prefabricated building floor construction machine of the present invention:

[0034] As Figure 1 shown, the factory prefabricated building floor construction machine includes a truss platform 1, a lifting climbing frame 2, a hydraulic jacking system, a hoisting system, a ceiling (not shown in the figure) and a central control system. Among them, the truss platform 1 is a rectangular frame structure, and the projection of the truss platform in the up and down directions covers the prefabricated building to be constructed. In this embodiment, the truss platform 1 is a common Bailey truss platform in the prior art, the lifting climbing frame 2 is a common lattice support steel column in the prior art, and the ceiling is a prior art, and the specific structure will not be described in detail here.

[0035] The lifting climbing frame 2 is connected to the bottom of the truss platform 1, and a plurality of them are arranged on the front and rear sides of the truss platform 1. As Figure 1As shown in the figure, the hydraulic jacking system is arranged in one-to-one correspondence with the lifting climbing formwork 2 and is connected to the central control system. The hydraulic jacking system includes support box girders 4 arranged at intervals in the vertical direction and jacking cylinders 5 connected between the two support box girders 4. The structures of the two support box girders 4 are the same, and both include a non-standard box girder in the middle and standard box girders on the left and right sides. Long holes extending in the left-right direction are provided on the outer sides of the two standard box girders, and transmission plates 13 are slidably assembled in the long holes. Movable legs 6 corresponding to the transmission plates 13 are provided in both standard box girders. The hydraulic jacking system further includes support cylinders 7 installed outside the standard box girders. Both the support cylinders 7 and the jacking cylinders 5 are connected to the central control system. The piston rod of the support cylinder 7 is connected to the transmission plate 13. When the piston rod extends, the movable leg 6 can be extended from the standard box girder, and when the piston rod retracts, the movable leg 6 can be retracted into the standard box girder. The piston rod of the jacking cylinder 5 is connected to the corresponding lifting climbing formwork 2 to drive the lifting climbing formwork 2 to move up and down. The movable leg 6 is used to be stuck in the reserved hole on the prefabricated building wall 3.

[0036] To ensure the safety of the entire truss platform during ascent, a guiding column 8 extending in the vertical direction is provided on the left side of the lower support box girder, as Figure 1 and Figure 5 shown. On the upper support box girder, a guiding cylinder 9 coaxial with and guidingly engaged with the guiding column 8 is provided. A plurality of guiding grooves extending in the vertical direction are provided on the circumferential direction of the guiding column 8, and anti-falling locking blocks 12 arranged at intervals in the vertical direction are provided in the guiding grooves. A guiding disc 10 is provided at the bottom end of the guiding cylinder 9, and anti-falling rods 11 are rotatably assembled at positions corresponding to the respective guiding grooves on the circumference of the guiding disc 10. The anti-falling rods 11 are used to be stuck on the corresponding anti-falling locking blocks 12 when the upper support box girder descends. It should be noted that the anti-falling rods 11 are always located in the guiding grooves. During the ascent of the upper support box girder, when the anti-falling locking blocks 12 contact the anti-falling rods 11, they push the anti-falling rods 11 to rotate in a direction away from the guiding column. When the anti-falling locking blocks 12 are disengaged from the anti-falling rods 11, the anti-falling rods 11 can swing back to their original positions, which is the limit position where the anti-falling rods 11 can swing. That is, when in this position, the anti-falling rods 11 will not swing towards the guiding column anymore. Therefore, when the jacking cylinder 5 has an accidental cylinder slip, the anti-falling rods 11 can be stuck on the anti-falling locking blocks 12 and will not rotate anymore.

[0037] As Figure 1 , Figure 2 and Figure 3 shown, the hoisting system includes a hoisting bracket 32 connected to the truss platform 1, two transverse hoisting tracks 33 installed on the hoisting bracket 32 and extending in the left-right direction, a longitudinal hoisting track (not shown in the figure) extending in the front-rear direction and movably assembled in the transverse hoisting tracks 33 in the left-right direction, and a hoisting assembly movably assembled on the longitudinal hoisting track. Among them, asFigure 2 and Figure 3 As shown in Figure 3 , the hoisting assembly includes a lifting seat 14 movably assembled on a longitudinal hoisting track, a hoisting winch installed on the top of the lifting seat 14, and a telescopic sleeve installed on the bottom of the lifting seat 14. Two driving blocks 17 are provided on the top of the lifting seat 14, and the two driving blocks 17 are respectively arranged at the front and rear ends of the lifting seat 14. The longitudinal hoisting track includes two lead screws arranged at intervals and each threadedly connected to each driving block 17. The lead screw is drivingly connected to a moving motor. A seat body is provided below the moving motor, and the seat body can move on a transverse hoisting track. The movement of the seat body on the transverse hoisting track is similar to the movement of the crane on the cross beam of a gantry crane, which is prior art and will not be described in detail here. The hoisting winch includes a driving motor 25 and four drums 23 arranged in a rectangular distribution and drivingly connected to the driving motor 25. Specifically, two pairs of support plates 34 arranged at intervals in the left-right direction are provided on the top of the lifting seat 14. The two support plates 34 in each pair are arranged in parallel at intervals in the front-rear direction. A transmission shaft 24 is rotatably assembled between the two support plates 34 in each pair. Two drums 23 arranged at intervals are fixedly connected to each transmission shaft 24. A steel wire rope 35 is wound around each drum 23. The transmission shafts 24 on the two pairs of support plates 34 are parallel in the left-right direction. A driving gear 26 is fixedly connected to the output shaft of the driving motor 25. Transmission gears 27 meshing with the driving gear 26 are respectively fixed on the parts of the two transmission shafts 24 between the two drums 23. When the driving motor 25 rotates forward, the drum 23 rotates clockwise to wind the steel wire rope 35 to lift the building component; when the driving motor 25 rotates reversely, the drum 23 rotates counterclockwise to lower the steel wire rope 35 to lower the building component.

[0038] The telescopic sleeve is connected to the bottom of the suspension seat 14 and includes a fixed cylinder section 18 and a plurality of telescopic cylinder sections 19 that are sleeved with each other and coaxial and installed in the fixed cylinder section 18. The fixed cylinder section 18 is tubular and has no bottom plate, and each telescopic cylinder section 19 has a bottom plate 20. After the telescopic sleeve is fully extended, the inner diameter of the telescopic cylinder section 19 gradually decreases from top to bottom. Each steel wire rope 35 passes through the bottom plates 20 of each telescopic cylinder section 19 at the same time, and the bottom plate 20 has a limiting effect on the steel wire rope 35, which can limit the deflection of the steel wire rope 35 within a short distance. Along the radial direction of the telescopic sleeve from outside to inside, in any two adjacent cylinder sections, a plurality of notch chutes 21 extending in the up and down directions are provided in the circumferential direction of the outer cylinder section, and sliding blocks 22 corresponding to the notch chutes 21 one by one are provided in the circumferential direction of the inner cylinder section. The notch chute 21 does not penetrate the corresponding cylinder section up and down, and the sliding block 22 is integrally formed at the radial circumference of the telescopic cylinder section. The sliding block 22 is lowered from the notch of the notch chute 21 and slides down to the limit position to stop against the bottom of the notch chute 21, so as to realize the cooperation between two adjacent cylinder sections. The bottom ends of the steel wire ropes 35 are commonly connected with a suspension plate 15. On the side of the suspension plate 15 facing away from the telescopic sleeve, a plurality of hooks 16 are fixedly connected, and the hooks 16 are used for hoisting building components; on the side of the suspension plate 15 facing the telescopic sleeve, it is used to support the telescopic sleeve and is provided with a limiting post 36 that is inserted and matched with the telescopic cylinder section with the smallest inner diameter. The area of the suspension plate 15 is larger than the covering area of the telescopic sleeve, so that the suspension plate 15 can support the entire telescopic sleeve. When the steel wire rope 35 is wound and hoisted, the suspension plate 15, the hook 16 and the building component are lifted together until the limiting post 36 is inserted into the telescopic cylinder section with the smallest inner diameter. At this time, the suspension plate 15 is limited, and the steel wire rope 35 is also limited by the bottom plate 20 within the range where the entire telescopic sleeve is extended, so that at this time, the suspension plate 15, the telescopic sleeve and the hoisted building component form a whole, equivalent to a hard hook, and the suspension plate 15 will no longer deflect. Correspondingly, the hoisted building component will not deflect either. During the continuous winding of the steel wire rope 35, the suspension plate 15 continuously moves up and pushes the corresponding telescopic cylinder section to retract it until all the telescopic cylinder sections are retracted into the fixed cylinder section. At this time, the vertical hoisting of the building component from the ground to the truss platform 1 is completed.

[0039] Since each reel 23 is driven by a gear and the driving motor itself is a hoisting motor with a self-locking function, when the driving motor stops, the driving shaft will not rotate anymore. To avoid accidental failure of the self-locking function of the driving motor, in this embodiment, a locking rod 29 is rotatably assembled on the suspension seat beside the rear transmission gear, as Figure 4As shown, the lock rod 29 is provided with a lock groove 30 for locking with the teeth on the corresponding transmission gear 27, and the lock groove 30 is located below the transmission gear 27. An electric telescopic rod 31 that can be extended up and down is connected to the position corresponding to the lock rod 29 on the bottom plate of the telescopic barrel section with the largest inner diameter. During the upward movement of the hanging plate 15, the electric telescopic rod 31 can contact with the lock rod 29. When the hanging plate 15 continues to move upward, the electric telescopic rod 31 continues to push the lock rod 29 to rotate it upward until the lock groove 30 is locked with the teeth on the transmission gear 27. At this time, the bottom plate of the telescopic barrel section with the largest inner diameter is just in contact with the hanging seat 14. Under the locking effect, each reel 23 will no longer rotate, thereby ensuring the relative fixation of the position of the hanging plate 15 and the hanging seat 14.

[0040] When it is necessary to lift the building component to the specified position, the central control system controls the longitudinal lifting track to adjust the position on the transverse lifting track 33, and correspondingly, controls the hanging seat 14 to adjust the position on the longitudinal lifting track. When the adjustment is completed, the central control system controls the electric telescopic rod 31 to retract. At this time, the locking rod 29 flips downward under its own gravity to release the lock on the transmission gear 27, and the drive motor 25 can be controlled to reverse and lower each wire rope 35. During the lowering process, the limit column 36 is always plugged with the telescopic barrel section with the smallest inner diameter. At this time, the hanging plate 15 and the hook and the telescopic sleeve are always kept as a whole. The wire rope 35 connected to the hanging plate 15 is limited by each telescopic barrel section 19 and will not swing. The entire lifting assembly is equivalent to a hard hook, which can directly lower the building component to the corresponding position without manual adjustment of the hoisted building component.

[0041] When the truss platform is rising, the central control system controls the support cylinder on the upper support box beam to be retracted, so that the upper movable leg is separated from the upper reserved hole, and then the jacking cylinder is opened, and the jacking cylinders at various locations are simultaneously started to jointly push the lifting bracket upward, thereby realizing the rise of the truss platform; when it rises to the right position, the support cylinder on the upper support box beam is controlled to extend, so that the upper movable leg is extended into the reserved hole corresponding to the building wall after lifting. After the support is stable, the central control system controls the support cylinder at the lower support box beam to be retracted, so that the lower movable leg is separated from the lower reserved hole, and then controls the jacking cylinder to be retracted. At this time, the lower support box beam rises to the previous position of the upper support box beam, and the support cylinder on the lower support box beam extends, and the lower movable leg is extended into the corresponding reserved hole position, so that the construction of the corresponding floor can be carried out, and the construction of all floors can be completed in this cycle. In the whole process, there is no need to increase the number of sections of the lifting climbing frame as in the prior art, thereby greatly reducing the use of steel and saving costs.

[0042] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A factory prefabricated building construction machine, comprising: A truss platform, which is a rectangular frame structure, and the projection of the truss platform in the up and down direction covers the prefabricated building to be constructed; Lifting climbing frames, detachably connected to the bottom of the truss platform, and a plurality of them are arranged on the front and rear sides of the truss platform; A hydraulic jacking system, which is arranged corresponding to the lifting climbing frames one by one, includes support box girders arranged at intervals in the up and down direction and jacking cylinders connected between the two support box girders. Movable legs are movably assembled at the left and right ends of the support box girders respectively. The hydraulic jacking system also includes support cylinders arranged at the left and right ends of each support box girder. The piston rod of the support cylinder is in transmission connection with the corresponding movable leg, and the piston rod of the jacking cylinder is connected to the corresponding lifting climbing frame to drive the lifting climbing frame to move up and down. The movable legs are used to be stuck in the reserved holes on the prefabricated building wall; A hoisting system; A ceiling, connected above the truss platform, having an open state and a retracted state. When the ceiling is in the open state, it covers the truss platform; It is characterized in that the hoisting system includes a hoisting bracket connected to the truss platform, two transverse hoisting tracks installed on the hoisting bracket and extending in the left and right directions, a longitudinal hoisting track extending in the front and rear directions and movably assembled in the transverse hoisting track in the left and right directions, and a hoisting component movably assembled on the longitudinal hoisting track. The hoisting component includes a suspension seat movably assembled on the longitudinal hoisting track, a winch hoist installed on the top of the suspension seat, and a telescopic sleeve installed on the bottom of the suspension seat. The winch hoist includes a driving motor and at least four drums in transmission connection with the driving motor; the telescopic sleeve includes a fixed barrel section and a plurality of telescopic barrel sections sleeved with each other and coaxial installed in the fixed barrel section. Each telescopic barrel section has a bottom plate. A steel wire rope is wound on each drum, and each steel wire rope passes through the bottom plates of each telescopic barrel section at the same time. The bottom ends of the steel wire ropes are commonly connected to a hanging plate. A plurality of hooks are fixedly connected to the side of the hanging plate facing away from the telescopic sleeve. The side of the hanging plate facing the telescopic sleeve is used to support the telescopic sleeve and is provided with a limiting post inserted and matched with the telescopic barrel section with the smallest inner diameter; When the hoisting component performs hoisting operations above the truss platform, the limiting post is always inserted and matched with the telescopic barrel section with the smallest inner diameter.

2. The factory prefabricated building construction machine according to claim 1, characterized in that, Two transmission blocks are provided on the top of the suspension seat, and the two transmission blocks are respectively arranged at the front and rear ends of the suspension seat. The longitudinal hoisting track includes two lead screws arranged at intervals and both threadedly connected to each transmission block. The lead screw is in transmission connection with a moving motor.

3. The factory prefabricated building construction machine according to claim 2, characterized in that, Two pairs of support plates arranged at intervals in the left and right direction are provided on the top of the suspension seat. The two support plates in each pair are arranged parallel and at intervals in the front and rear direction. A transmission shaft is rotatably assembled between the two support plates in each pair. Two drums arranged at intervals are fixedly connected to the transmission shaft. The transmission shafts on the two pairs of support plates are parallel in the left and right direction. A driving gear is fixedly connected to the output shaft of the driving motor. Transmission gears meshing with the driving gear are respectively fixed on the two transmission shafts.

4. The building machine for factory prefabricated buildings according to claim 3, characterized in that, a locking rod is rotatably assembled beside at least one transmission gear on the hanging seat, a locking groove for locking and cooperating with the teeth on the corresponding transmission gear is arranged on the locking rod, the locking groove is located below the transmission gear, and an electrically telescopic rod that can be telescoped up and down is connected to the bottom plate of the telescopic cylinder section with the largest inner diameter at the position corresponding to the locking rod. When the bottom plate of the telescopic cylinder section with the largest inner diameter contacts the hanging seat, the electrically telescopic rod presses the locking rod so that the locking groove locks and cooperates with the teeth on the corresponding transmission gear.

5. The building machine for factory prefabricated buildings according to any one of claims 1-4, characterized in that, in the radial direction of the telescopic sleeve from outside to inside, among any two adjacent cylinder sections, a plurality of notch chutes extending in the up and down direction are arranged in the circumferential direction of the outer cylinder section, and sliding blocks corresponding to the notch chutes one by one are arranged in the circumferential direction of the inner cylinder section.

6. The building machine for factory prefabricated buildings according to any one of claims 1-4, characterized in that, a guiding upright column extending in the up and down direction is arranged on one side of the supporting box girder at the lower part, and a guiding cylinder coaxially and guidingly cooperating with the guiding upright column is arranged on the supporting box girder at the upper part.

7. The building machine for factory prefabricated buildings according to claim 6, characterized in that, a plurality of guiding grooves extending in the up and down direction are arranged in the circumferential direction of the guiding upright column, anti-falling clamping blocks arranged at intervals in the up and down direction are arranged in the guiding grooves, a guiding disc is arranged at the bottom end of the guiding cylinder, anti-falling rods are rotatably assembled at the positions corresponding to the respective guiding grooves in the circumferential direction of the guiding disc, and the anti-falling rods are used for being clamped on the corresponding anti-falling clamping blocks when the supporting box girder at the upper part descends.

Images