CN115749364A

CN115749364A - Building storey height increasing reconstruction and extension construction equipment and reconstruction and extension construction method thereof

Info

Publication number: CN115749364A
Application number: CN202211702458.2A
Authority: CN
Inventors: 付磊; 刘金华; 刘世伟; ***; 刘新华; 全明霞; 祝磊; 严文才
Original assignee: Hubei Zhoutian Construction Group Co ltd
Current assignee: Hubei Zhoutian Construction Group Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-03-07

Abstract

A building increases the floor height and rebuilds the construction equipment and rebuilds the construction method, including supporting the steelframe (4), characterized by that: the supporting steel frames (4) are more than one and are arranged in pairs, a lifting frame (9) is arranged between the two supporting steel frames (4) which are distributed in parallel, heightening hydraulic cylinders (8) are arranged between the upper ends of the supporting steel frames (4) and the four corners of the upper portion of the lifting frame (9), horizontal sliding rails (10) are horizontally arranged on the left side and the right side of the bottom of the lifting frame (9) along the length direction of the supporting steel frames (4), sliding seats (11) are arranged on the horizontal sliding rails (10), vertical lifting devices (15) are vertically arranged on the sliding seats (11), and horizontally arranged bearing frames (14) are arranged at the upper ends of the vertical lifting devices (15).

Description

Building storey height increasing reconstruction and extension construction equipment and reconstruction and extension construction method thereof

Technical Field

The invention relates to a demolition and reconstruction and extension device and a reconstruction and extension method thereof, in particular to a reconstruction and extension construction device for building storey height increase and a reconstruction and extension construction method thereof, and belongs to the technical field of building construction devices.

Background

Through years of construction and development, old buildings are increased day by day, and meanwhile, because the building functional design cannot meet the current use requirement, more and more buildings need to be reconstructed or expanded, and reconstruction and expansion projects for the old buildings are increased day by day. If the traditional common construction method is adopted to demolish and rebuild the building with the lower height of the original floor, a lot of construction problems exist, the construction problems are not only limited by the effective construction and expansion space, large-scale demolition equipment cannot be used, and the building can only be demolished by the traditional impact drill and the traditional cutting machine, so that the construction difficulty is high, the construction safety cannot be guaranteed, the construction efficiency is low, and the labor intensity of constructors is very high. In addition, adopt the tradition to break open construction equipment and cause collateral damage to the building very easily, for example destroyed the beam column structure that does not demolish, broken not demolish floor etc. and be unfavorable for the overall structure safety of building, demolish the support of process moreover and strut the cost higher, support through traditional steel pipe scaffold and strut, not only the installation is dismantled the operation process loaded down with trivial details, and it is very big to occupy the indoor space moreover, is unfavorable for demolising the clearance transportation of component. After the demolition members are demolished and separated, manual assistance is needed for hoisting, multiple construction workers are needed to finish the fixation and hoisting of the prefabricated members on site, the hoisting process efficiency is low, the weight of the demolition members in a suspended state is large, and great potential safety hazards are formed for operating personnel for the demolition members with parts broken or cracked in the demolition process. Therefore, the traditional floor slab dismantling operation mode has the problems of low automation degree, high dismantling construction difficulty in limited indoor space, high hoisting difficulty, high labor intensity of personnel, inconvenience for the safety of the whole structure of a building, high supporting and supporting cost, difficulty in safety guarantee and the like, and the invention aims to solve the technical problem.

Disclosure of Invention

The invention aims at the defects that the traditional floor slab dismantling operation mode has low automation degree, the dismantling construction difficulty in a limited indoor space is high, multiple building workers are required to cooperate in the dismantling and hoisting processes, the hoisting difficulty is high, the labor intensity of personnel is high, the safety of the whole structure of a building is not facilitated, the supporting and supporting cost is high, and the potential safety hazard to operators is high.

The second purpose of the invention is to provide a building additional floor height reconstruction and extension construction method which has the advantages of reasonable process, safe and reliable equipment use, capability of accurately cutting and dismantling the floor slab, capability of avoiding the additional damage to the building caused by the traditional dismantling construction mode and improvement of the construction safety performance, aiming at the defects and the defects that the traditional floor slab dismantling operation mode has low efficiency, the building is easily damaged by the additional damage and the building structure is not safe, the traditional steel pipe scaffold is supported and supported to be not beneficial to construction, the labor intensity in the dismantling process is high, and the safety performance is not good.

In order to achieve the first object, the technical solution of the present invention is: the utility model provides a building increases floor height and changes enlargement construction equipment, including supporting the steelframe, supporting the steelframe and shelve on the ground floor, supporting the steelframe and be more than one and set up in pairs, install the crane between two parallel distribution's the support steelframe, install the heightening pneumatic cylinder between the upper end of support steelframe and the upper portion four corners of crane, the bottom left and right sides of crane is provided with horizontal slide rail along the length direction level of supporting the steelframe, install the sliding seat on the horizontal slide rail, install vertical lifting device perpendicularly on the sliding seat, the bearing frame that the level set up is installed to vertical lifting device's upper end, the upper surface of bearing frame is floor laying face, transverse moving frame and longitudinal movement frame are installed respectively to the bottom of bearing frame, transverse moving frame and longitudinal movement frame are in different horizontal planes and perpendicular distribution with longitudinal movement frame, install the transverse moving device that drives transverse moving frame round trip movement between bearing frame and the transverse moving frame, install the longitudinal movement device that drives longitudinal movement frame round trip movement, transverse cutting machine is installed through the saw bit longitudinal movement device on the transverse moving frame.

Furthermore, the transverse moving device and the longitudinal moving device respectively comprise a lead screw, a servo motor and a lead screw nut, the lead screw on the transverse moving device is transversely arranged on a horizontal plane, one end of the lead screw is installed on the bearing frame through a lead screw bearing seat, the other end of the lead screw is coaxially fixed with a rotating shaft of the servo motor, and a shell of the servo motor is installed and fixed on the bearing frame; the lead screw on the longitudinal moving device is longitudinally arranged on a horizontal plane, one end of the lead screw is installed on the bearing frame through a lead screw bearing seat, the other end of the lead screw is coaxially fixed with a rotating shaft of the servo motor, and a shell of the servo motor is installed and fixed on the bearing frame.

Furthermore, a plurality of steel gyro wheels are installed through the universal wheel seat in the bottom of supporting the steelframe, and telescopic landing leg is installed at the bottom four corners or a plurality of atress positions that support the steelframe, and the top of supporting the steelframe is provided with floor support piece.

Furthermore, the lower end of the lifting frame extends to the lower parts of the two support steel frames which are arranged in parallel, the front end and the rear end of the lower part of the lifting frame are horizontally connected with bottom cross beams, the upper end of each bottom cross beam is provided with a groove, and a long single roller or a plurality of rollers which are coaxially arranged are arranged in each groove.

Furthermore, the bottom of the bearing frame, the transverse moving frame or the longitudinal moving frame is provided with an impact hammer, an impact hammer head of the impact hammer is right opposite to the bottom of the floor slab, which is arranged on the inner side of the cutting joint of the floor slab and used for removing the floor slab, the floor slab placing surface is provided with a plurality of mounting holes, and elastic supporting pieces capable of temporarily supporting and buffering the floor slab are arranged in the mounting holes.

Furthermore, elastic support piece includes adjustable sleeve, support steel column and damping spring, and adjustable sleeve is installed through the screw thread in the bottom of mounting hole, and the inside from the top down of adjustable sleeve installs the support steel column, supports and installs damping spring between steel column and the telescopic inboard bottom of adjustable.

Further, the saw blade transverse moving device comprises a transverse sliding rail, a transverse sliding seat, a rack, a gear and a driving motor, the transverse sliding rail is arranged on the transverse moving frame along the length direction, the transverse sliding seat is mounted on the transverse sliding rail, a transverse cutting machine is mounted on the transverse sliding seat, the rack parallel to the transverse sliding rail is arranged on the transverse moving frame, the driving motor is mounted on the transverse sliding seat, the gear is fixed on an output shaft of the driving motor 34, and the gear is meshed with the rack.

Furthermore, the saw blade longitudinal moving device comprises a longitudinal slide rail, a longitudinal slide seat, a rack, a gear and a driving motor, the longitudinal slide rail is arranged on the longitudinal moving frame along the length direction, the longitudinal slide seat is mounted on the longitudinal slide rail, a longitudinal cutting machine is mounted on the longitudinal slide seat, the rack parallel to the longitudinal slide rail is arranged on the longitudinal moving frame, the driving motor is mounted on the longitudinal slide seat, the gear is fixed on an output shaft of the driving motor, and the gear is meshed with the rack.

Furthermore, a transverse cutting machine is installed on the transverse sliding seat through a saw blade height adjusting device, a longitudinal cutting machine is installed on the longitudinal sliding seat through a saw blade height adjusting device, and the saw blade height adjusting device is a lifting adjuster or a swinging adjuster.

In order to achieve the second object, the technical solution of the present invention is: a reconstruction and extension construction method for increasing the storey height of a building is characterized by comprising the following steps:

a. firstly, arranging support steel frames on a ground floor, installing a lifting frame between two adjacent support steel frames to ensure that the lifting frame is positioned under a floor to be dismantled, stably supporting the support steel frames through telescopic support legs, and propping the floor or a cross beam outside the floor to be dismantled by a floor support;

b. then, the bearing frame is arranged on the lifting frame, cutting equipment and accessories thereof are prepared, and the floor slabs to be dismantled are marked in a partitioning manner according to the dismantling sequence;

c. controlling the heightening hydraulic cylinder to extend upwards for a certain distance, so that the lifting frame is lifted to a certain height to ensure that the bearing frame can bear the floor or the cross beam to be dismantled from the bottom;

d. then controlling the action of the vertical lifting device to drive the bearing frame to move upwards for a certain distance, so that the floor slab placing surface on the bearing frame or the upper end of the elastic support part is contacted with the bottom surface of the floor slab to be dismantled;

e. starting the transverse moving device and the longitudinal moving device closely, respectively driving the transverse cutting machine and the longitudinal cutting machine to move to the positions right below the cutting mark lines of the floor slab under the help of the laser calibrator, and controlling the saw blades of the cutting machine to align to the cutting mark lines;

f. after the cutting machine is started, the saw blade height adjusting device is controlled to drive the cutting machine to move upwards for a certain distance, and after cutting is started, the cutting machine moves along the sliding rail and performs moving cutting according to a cutting mark line;

g. after two parallel transverse cutting seams and two longitudinal cutting seams of each floor slab are finished, starting the impact hammer, hammering from bottom to top, and enabling the cut floor slabs to fall to the upper end of the elastic supporting piece under the action of gravity and fall on the floor slab laying surface after being buffered by the elastic supporting piece;

h. and finally, controlling the vertical lifting device to drive the bearing frame to move downwards to the bottom of the lifting frame, and simultaneously controlling the heightening hydraulic cylinder to drive the lifting frame to move downwards to finish the dismantling and downward transportation of a single floor slab, thereby realizing the increase of the height of the building layer.

The invention has the beneficial effects that:

1. the multi-section combined supporting structure formed by the supporting steel frame, the heightening hydraulic cylinder, the lifting frame and the vertical lifting device has a lifting adjusting function, can move transversely and longitudinally as required, can be accurately adjusted to the position of a floor slab removing marking line, and realizes matrix type block cutting and removing of the floor slab.

2. The movable and liftable bearing frame is adopted, so that the cut and dismantled floor slabs can be borne, the bearing frame can integrally support the cut and dismantled floor slabs from the bottom, and the cut and dismantled floor slabs can be carried to a ground forklift or other transportation equipment, so that the safety risk of suspended hoisting is avoided, and the safety is improved.

3. The invention realizes the accurate cutting of the floor slab by means of the accurately moving transverse moving cutting device and the longitudinally moving cutting device, can quickly cut and fall to the bearing frame with the assistance of the impact hammer after cutting, can adjust the cutting position and the cutting area each time according to the actual construction site, and has strong adaptability.

4. The invention has reasonable structure, reduces the supporting and supporting difficulty, greatly improves the floor slab dismantling efficiency, only needs one to two monitoring aids for dismantling and hoisting, reduces the labor intensity of personnel, has high dismantling precision, avoids the collateral damage of the traditional dismantling construction mode to the building, has good safety performance, and has wide application in the aspects of dismantling, reconstruction and extension of the existing building.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a state diagram of the use of the present invention.

Figure 3 is a bottom view of the load frame assembly of the present invention.

Fig. 4 is a schematic structural view of the elastic supporting member of the present invention mounted on a load-bearing frame.

Fig. 5 is a schematic structural view of the elastic support member of the present invention.

Fig. 6 is a schematic structural view of the transversely moving cutting device of the present invention.

Fig. 7 is a schematic view of the structure of the longitudinal movement cutting device of the present invention.

Fig. 8 is a schematic view showing the construction of the saw blade height adjusting apparatus of the present invention.

In the figure: the device comprises a ground floor 1, a bearing wall 2, a floor slab 3, a supporting steel frame 4, steel rollers 5, telescopic supporting legs 6, a floor slab supporting piece 7, a heightening hydraulic cylinder 8, a lifting frame 9, horizontal slide rails 10, sliding seats 11, a bottom cross beam 12, a laser calibrator 13, a bearing frame 14, a vertical lifting device 15, a floor slab placing surface 16, a mounting hole 17, an adjustable sleeve 18, supporting steel columns 19, damping springs 20, a transverse moving frame 21, transverse slide rails 22, transverse sliding seats 23, a transverse cutting machine 24, a lead screw 25, a servo motor 26, a lead screw nut 27, a longitudinal moving frame 28, longitudinal slide rails 29, a longitudinal sliding seat 30, a longitudinal cutting machine 31, a rack 32, a gear 33, a driving motor 34, a telescopic device 35, a swinging seat 36, a swinging shaft 37, an upper connecting rod 38, a lower connecting rod 39 and a hinged shaft 40.

Detailed Description

The invention is described in further detail below with reference to the drawing description and the detailed description.

Referring to fig. 1 to 8, the reconstruction and extension construction equipment for increasing the floor height of the building comprises a supporting steel frame 4, wherein the supporting steel frame 4 is placed on a ground floor 1, and the reconstruction and extension construction equipment is characterized in that: the utility model discloses a saw blade cutting machine, including support steelframe 4, crane 9, vertical cutting machine 31, support steelframe 4, support frame 14, bearing frame 14, the horizontal movement frame of horizontal setting, install horizontal movement frame 21 and longitudinal movement frame 28 between bearing frame 14 and the longitudinal movement frame 28, horizontal cutting machine 24 is installed through horizontal movement frame on the horizontal movement frame 21, the saw blade longitudinal movement 31 is installed through the saw blade longitudinal movement device on the longitudinal movement frame 28, install between two parallel distribution's the support steelframe 4 and set up in pairs, install between two parallel distribution's the support steelframe 4 and lift the upper portion four corners of crane 9 and increase the high hydraulic cylinder 8, the bottom left and right sides of crane 9 is provided with horizontal slide rail 10 along the length direction level of support steelframe 4, install sliding seat 11 on the horizontal slide rail 11, the bearing frame 14 that the level set up is installed to the vertical lifting gear on the vertical lifting gear, the upper surface of bearing frame 14 is floor place face 16, transverse movement frame 14 installs the longitudinal movement frame 28's the longitudinal movement frame 21 back and forth movement frame back and forth movement device that drives longitudinal movement frame 28 back and forth movement frame back and forth movement, install the saw blade cutting machine 31 through the horizontal cutting machine on the transverse movement frame 21 through the saw blade longitudinal movement frame 21.

The transverse moving device and the longitudinal moving device respectively comprise a lead screw 25, a servo motor 26 and a lead screw nut 27, the lead screw 25 on the transverse moving device is transversely arranged on a horizontal plane, one end of the lead screw 25 is installed on the bearing frame 14 through a lead screw bearing seat, the other end of the lead screw 25 is coaxially fixed with a rotating shaft of the servo motor 26, a shell of the servo motor 26 is installed and fixed on the bearing frame 14, and the lead screw nut 27 is installed on the lead screw 25 and fixed with the transverse moving frame 21; the lead screw 25 on the longitudinal moving device is arranged longitudinally on a horizontal plane, one end of the lead screw 25 is installed on the bearing frame 14 through a lead screw bearing seat, the other end of the lead screw 25 is coaxially fixed with a rotating shaft of the servo motor 26, a shell of the servo motor 26 is installed and fixed on the bearing frame 14, and a lead screw nut 27 is installed on the lead screw 25 and fixed with the longitudinal moving frame 28.

Support the bottom of steelframe 4 and install a plurality of steel gyro wheels 5 through the universal wheel seat, support the bottom four corners of steelframe 4 or a plurality of atress positions and install telescopic landing leg 6, the top of supporting steelframe 4 is provided with floor support piece 7.

The lower end of the lifting frame 9 extends to the lower parts of the two support steel frames 4 which are arranged in parallel, and the front end and the rear end of the lower part of the lifting frame 9 are horizontally connected with a bottom cross beam 12; the vertical lifting device 15 is a fork-shaped lifting device, and a hydraulic telescopic cylinder or an electric telescopic rod is installed on the fork-shaped lifting device.

The bottom of the bearing frame 14, the transverse moving frame 21 or the longitudinal moving frame 28 are provided with impact hammers, the impact hammers face the bottom of the floor slab to be removed on the inner side of the floor slab cutting seam, the floor slab placing surface 16 is provided with a plurality of mounting holes 17, and elastic supporting members capable of temporarily supporting and buffering the floor slab are arranged in the mounting holes 17.

The elastic supporting piece comprises an adjustable sleeve 18, a supporting steel column 19 and a damping spring 20, the adjustable sleeve 18 is installed at the bottom of the installation hole 17 through threads, the supporting steel column 19 is installed inside the adjustable sleeve 18 from top to bottom, and the damping spring 20 is installed between the supporting steel column 19 and the bottom of the inner side of the adjustable sleeve 18.

The saw blade transverse moving device comprises a transverse sliding rail 22, a transverse sliding seat 23, a rack 32, a gear 33 and a driving motor 34, the transverse sliding rail 22 is arranged on the transverse moving frame 21 along the length direction, the transverse sliding seat 23 is installed on the transverse sliding rail 22, a transverse cutting machine 24 is installed on the transverse sliding seat 23, the rack 32 parallel to the transverse sliding rail 22 is arranged on the transverse moving frame 21, the driving motor 34 is installed on the transverse sliding seat 23, the gear 33 is fixed on an output shaft of the driving motor 34, and the gear 33 is meshed with the rack 32.

The saw blade longitudinal moving device comprises a longitudinal sliding rail 29, a longitudinal sliding seat 30, a rack 32, a gear 33 and a driving motor 34, the longitudinal sliding rail 29 is arranged on the longitudinal moving frame 28 along the length direction, the longitudinal sliding seat 30 is installed on the longitudinal sliding rail 29, a longitudinal cutting machine 31 is installed on the longitudinal sliding seat 30, the rack 32 parallel to the longitudinal sliding rail 29 is arranged on the longitudinal moving frame 28, the driving motor 34 is installed on the longitudinal sliding seat 30, the gear 33 is fixed on an output shaft of the driving motor 34, and the gear 33 is meshed with the rack 32.

The transverse sliding seat 23 is provided with a transverse cutting machine 24 through a saw blade height adjusting device, the longitudinal sliding seat 30 is provided with a longitudinal cutting machine 31 through a saw blade height adjusting device, and the saw blade height adjusting device is a lifting adjuster or a swinging adjuster.

A reconstruction and extension construction method for increasing the storey height of a building is characterized by comprising the following steps:

a. firstly, arranging support steel frames 4 on a ground floor 1, installing a lifting frame 9 between two adjacent support steel frames 4, enabling the lifting frame 9 to be positioned under a floor slab to be dismantled, stably supporting the support steel frames 4 through telescopic support legs 6, and propping the floor slab or a cross beam outside the floor slab to be dismantled by a floor slab supporting piece 7;

b. then, the bearing frame 14 is arranged on the lifting frame 9, cutting equipment and auxiliary devices thereof are prepared, and the floor slabs to be removed are marked in a partitioning mode according to the removing sequence;

c. controlling the height-adjusting hydraulic cylinder 8 to extend upwards for a certain distance, so that the lifting frame 9 is lifted to a certain height to ensure that the bearing frame 14 can bear the floor or the cross beam to be dismantled from the bottom;

d. then, the vertical lifting device 15 is controlled to act to drive the bearing frame 14 to move upwards for a certain distance, so that the floor slab placing surface 16 on the bearing frame 14 or the upper end of the elastic supporting piece is contacted with the bottom surface of the floor slab to be removed;

e. the transverse moving device and the longitudinal moving device are started immediately, the transverse cutting machine 24 and the longitudinal cutting machine 31 are respectively driven to move to the positions right below the floor cutting marked lines under the help of the laser calibrator 42, and the saw blades of the cutting machines are controlled to be aligned with the cutting marked lines;

f. after the cutting machine is started, the saw blade height adjusting device is controlled to drive the cutting machine to move upwards for a certain distance, and after cutting is started, the cutting machine moves along the sliding rail and performs moving cutting according to cutting mark lines;

g. after two parallel transverse cutting seams and two longitudinal cutting seams of each floor slab are finished, starting the impact hammer, hammering from bottom to top, and enabling the cut floor slabs to fall to the upper end of the elastic supporting piece under the action of gravity and fall on the floor slab placement surface 16 after being buffered by the elastic supporting piece;

h. and finally, controlling the vertical lifting device 15 to drive the bearing frame 14 to move downwards to the bottom of the lifting frame 9, and simultaneously controlling the heightening hydraulic cylinder 8 to drive the lifting frame 9 to move downwards to finish the dismantling and downward transportation of a single floor slab, thereby realizing the increase of the height of the building layer.

Referring to fig. 1 to 5, the multi-section combined supporting structure composed of the supporting steel frame 4, the heightening hydraulic cylinder 8, the lifting frame 9 and the vertical lifting device 15 is adopted, so that effective supporting and supporting can be provided for a floor to be dismantled, the structural safety of the dismantled building is ensured, the floor or a beam member which is not dismantled is effectively prevented from shattering, the supporting position can be adjusted according to the moving of the construction position, a fixed scaffold is not erected any more by adopting steel pipes, meanwhile, the building members such as the floor which is cut and dismantled can be automatically conveyed to the ground or transfer equipment, the ascending and hoisting assistance of construction workers is not needed, and the safety risk of suspended hoisting is avoided.

The invention adopts the supporting steel frame 4 to be placed on the ground floor 1, and the height of the supporting steel frame 4 as a ground supporting structure is not lower than half of the height of the existing building floor and lower than the height of the building floor. The supporting steel frames 4 are used in a plurality of splicing combinations, the horizontal splicing is carried out on the ground according to the floor slab removing area, the supporting steel frames 4 are arranged in parallel in pairs, and the tops of the areas between two adjacent parallel supporting steel frames 4 face the floor slabs to be removed. In order to facilitate the movement and accurate adjustment of the supporting steel frame 4 on the ground, a plurality of steel rollers 5 are mounted at the bottom of the supporting steel frame 4 through universal wheel seats, the supporting steel frame 4 can be pushed to move manually, meanwhile, telescopic supporting legs 6 are mounted at four corners or a plurality of stress positions at the bottom of the supporting steel frame 4, the telescopic supporting legs 6 can adopt a common screw type adjusting structure, when the supporting steel frame 4 needs to be moved, the telescopic supporting legs 6 are retracted, so that the bottom of the telescopic supporting legs 6 is separated from the ground, and the steel rollers 5 are in contact with the ground; when the fixed support is needed after the movement is finished, the telescopic supporting leg 6 is put down, so that the bottom of the telescopic supporting leg 6 is supported on the ground. In addition, the top of the supporting steel frame 4 is provided with a floor slab supporting piece 7, and the floor slab supporting piece 7 is a small hydraulic cylinder, a jack or other supporting structures and is used for supporting the floor slab or the cross beam on the outer side of the floor slab to be removed from the bottom, so that the floor slab or the cross beam on the outer side of the floor slab to be removed can be achieved, the stability of the supporting steel frame 4 can be improved, and overturning is avoided.

Install crane 9 between two parallel distribution's the support steelframe 4, crane 9's lower extreme extends to two parallel arrangement's the lower part of supporting steelframe 4, crane 9 adopts the steel construction to make, crane 9's upper end width is greater than two of installation crane 9 and supports the interval between steelframe 4 to crane 9's lower part width is less than two of installation crane 9 and supports the interval between steelframe 4, and the upper end of crane 9 of being convenient for like this is installed on supporting steelframe 4. The four heightening hydraulic cylinders 8 are arranged between the upper end of the supporting steel frame 4 and the four corners of the upper part of the lifting frame 9, and the four heightening hydraulic cylinders 8 can drive the lifting frame 9 to lift in a synchronous telescopic mode. Both ends horizontally connected has bottom crossbeam 12 around the lower part of crane 9, the upper end of bottom crossbeam 12 is seted up flutedly, install microscler single gyro wheel 13 or a plurality of gyro wheels 13 of coaxial setting in the recess, the last wheel reason of gyro wheel 13 is higher than the upper plane of bottom crossbeam 12, gyro wheel 13's effect is in the outside transportation process in order to cutting the floor after demolising, be convenient for shelve the bottom of floor and outwards slide on gyro wheel 13, it is laborsaving to save labour, can accomplish the transportation inside the building through manpower or miniature hoisting equipment.

The left side and the right side of the bottom of the lifting frame 9 are provided with horizontal slide rails 10 which are parallel to each other, the horizontal slide rails 10 are distributed along the length direction of the supporting steel frame 4, a slide seat 11 is installed on the horizontal slide rails 10, a vertical lifting device is installed on the slide seat 11, the vertical lifting device 15 is a fork-shaped lifting device, the fork-shaped lifting device is an existing common multi-connecting-rod hinged lifting device, and a hydraulic telescopic cylinder or an electric telescopic rod is installed on the fork-shaped lifting device. The upper end of the vertical lifting device is provided with a horizontally arranged bearing frame 14, the bearing frame 14 is of a rectangular steel structure frame structure and is high in bearing capacity, the upper surface of the bearing frame 14 is a floor slab placement surface 16, the bottom of the disassembled floor slab can be placed on the floor slab placement surface 16 and can bear the disassembled floor slab, and the whole cut and disassembled floor slab is supported from the bottom. The bottom of the bearing frame 14, the transverse moving frame 21 or the longitudinal moving frame 28 is provided with an impact hammer, the impact hammer is an existing commonly-used electric tool, the impact hammer can be an electric impact hammer, an impact hammer head of the impact hammer 35 is right opposite to the bottom of the floor slab to be removed on the inner side of the cutting seam of the floor slab, and after the floor slab is cut, the impact hammer 35 is utilized to impact the floor slab to a certain degree, so that the floor slab falls down under the action of gravity. A plurality of mounting holes 17 are formed in the floor slab placement surface 16, the mounting holes 17 are distributed in four corners of the floor slab placement surface 16 and on equidistant stress positions, elastic support members capable of temporarily supporting and buffering the floor slab are installed in the mounting holes 17, the elastic support members are used for temporarily supporting the floor slab when the floor slab is cut and removed, the buffering effect is achieved in the process that the floor slab falls under the action of gravity, and the situation that the removed floor slab falls suddenly to generate huge impact force on equipment to cause floor slab fracture and generate splashing fragments can be avoided.

The bottom of the bearing frame 14 is respectively provided with a transverse moving frame 21 and a longitudinal moving frame 28, or a long strip-shaped moving beam structure can be adopted, the transverse moving frame 21 and the longitudinal moving frame 28 are positioned on different horizontal planes and are vertically distributed, the transverse moving frame 21 is arranged at the bottom of the bearing frame 14 through a transverse sliding rail or a transverse sliding chute, and the longitudinal moving frame 28 is arranged at the bottom of the bearing frame 14 through a longitudinal sliding rail or a longitudinal sliding chute. A transverse moving device is arranged between the bearing frame 14 and the transverse moving frame 21, and the transverse moving device drives the transverse moving frame 21 to move back and forth at the bottom of the bearing frame 14 along the transverse direction. Similarly, a longitudinal moving device is installed between the carrying frame 14 and the longitudinal moving frame 28, and the longitudinal moving device drives the longitudinal moving frame 28 to precisely move back and forth in the longitudinal direction at the bottom of the carrying frame 14.

The lateral moving means and the longitudinal moving means may adopt the same structure, which has various structural forms, for example: the lead screw transmission device comprises a lead screw 25, a servo motor 26 and a lead screw nut 27, the lead screw 25 on the transverse moving device is transversely arranged on a horizontal plane, one end of the lead screw 25 is installed on a bearing frame 14 through a lead screw bearing seat, the other end of the lead screw 25 is coaxially fixed with a rotating shaft of the servo motor 26, a shell of the servo motor 26 is installed and fixed on the bearing frame 14, the lead screw nut 27 is installed on the lead screw 25 and is fixed with a transverse moving frame 21, and the servo motor 26 drives the lead screw nut 27 and the transverse moving frame 21 to accurately move through the lead screw 25. A lead screw 25 on the longitudinal moving device is longitudinally arranged on a horizontal plane, one end of the lead screw 25 is installed on the bearing frame 14 through a lead screw bearing seat, the other end of the lead screw 25 is coaxially fixed with a rotating shaft of a servo motor 26, a shell of the servo motor 26 is installed and fixed on the bearing frame 14, a lead screw nut 27 is installed on the lead screw 25 and fixed with a longitudinal moving frame 28, and the servo motor 26 drives the lead screw nut 27 and the longitudinal moving frame 28 to move accurately through the lead screw 25.

In order to realize the accurate movement of the cutting machine in the transverse direction or the longitudinal direction, the invention is provided with a transverse slide rail 22 on a transverse moving frame 21 along the length direction, a transverse slide seat 23 is arranged on the transverse slide rail 22, a cutting machine accurate movement device is arranged between the transverse slide seat 23 and the transverse moving frame 21, and a transverse cutting machine 24 is arranged on the transverse slide seat 23. The longitudinal moving frame 28 is provided with a longitudinal sliding rail 29 along the length direction, the longitudinal sliding rail 29 is provided with a longitudinal sliding seat 30, a cutting machine accurate moving device is arranged between the longitudinal sliding seat 30 and the longitudinal moving frame 28, and the longitudinal sliding seat 30 is provided with a longitudinal cutting machine 31.

The cutting machine accurate moving device can adopt various structural forms, mainly comprises a lead screw accurate moving device and a gear rack moving device, taking the gear rack moving device as an example, a rack 32 parallel to the transverse sliding rail 22 is arranged on the transverse moving frame 21, a driving motor 34 is arranged on the transverse sliding seat 23, a gear 33 is fixed on an output shaft of the driving motor 34, the gear 33 is meshed with the rack 32, and the driving motor 34 drives the gear 33 to rotate, so as to drive the transverse sliding seat 23 to accurately slide along the transverse sliding rail 22. Similarly, the rack 32 parallel to the longitudinal slide rail 29 is disposed on the longitudinal moving frame 28, the driving motor 34 is mounted on the longitudinal sliding seat 30, the gear 33 is fixed on the output shaft of the driving motor 34, the gear 33 is engaged with the rack 32, and the driving motor 34 drives the longitudinal sliding seat 30 to precisely slide along the longitudinal slide rail 29. The invention can adjust the cutting position and the cutting area at each time according to the actual construction site, for example, the cutting length at each time is 2-3 m, and the weight of the floor slab is 800-2000 kg.

In addition, when the cutting machine is used for accurately cutting the floor slab, in order to realize that the cutting machine can be adjusted up and down within a certain height range and can be used for gradually cutting upwards from bottom to top, the cutting machine can be driven to be adjusted up and down within a certain height range by means of linkage matching of the vertical lifting device 15, the transverse cutting machine 24 can also be arranged on the transverse sliding seat 23 through the saw blade height adjusting device, the longitudinal cutting machine 31 is arranged on the longitudinal sliding seat 30 through the saw blade height adjusting device, and the saw blade height adjusting device is a lifting adjuster or a swinging adjuster, so that up and down adjustment during cutting can be realized, and the floor slab and the cross beam can be conveniently cut.

If a swing type adjusting structure is adopted, the saw blade height adjusting device comprises a swing seat 36, a swing shaft 37, an upper connecting rod 38, a lower connecting rod 39, a hinge shaft 40 and a telescopic device 41, wherein the transverse sliding seat 23 or the longitudinal sliding seat 30 is hinged with one end of the swing seat 36 through the swing shaft 37, the bottom of the swing seat 36 is connected with one end of the upper connecting rod 38 through a connecting shaft, the swing seat 36 is connected with one end of the lower connecting rod 39 through the connecting shaft, the other end of the upper connecting rod 38 is connected with the other end of the lower connecting rod 39 through the hinge shaft 40, the hinge shaft 40 is connected with the telescopic end of the telescopic device 41, and when the telescopic device 41 is stretched, the swing seat 36 and the cutting machine can be driven to be adjusted up and down in a swing mode. The invention realizes the linkage coordination of the height-adjusting hydraulic cylinder 8, the vertical lifting device 15, the transverse moving device, the longitudinal moving device, the saw blade transverse moving device, the saw blade longitudinal moving device and the cutting machine through the controller.

The invention relates to a reconstruction and extension construction method for increasing storey height of a building, which mainly comprises the following steps: firstly, arranging support steel frames 4 on a ground floor 1, installing a lifting frame 9 between two adjacent support steel frames 4, enabling the lifting frame 9 to be positioned under a floor slab to be dismantled, stably supporting the support steel frames 4 through telescopic support legs 6, and propping the floor slab or a cross beam outside the floor slab to be dismantled through a floor slab support member 7. The loading frame 14 is then mounted on the crane 9 and the cutting device and its appurtenances are prepared, the floor slabs to be removed being marked in sections according to the removal sequence. The height-adjusting hydraulic cylinder 8 is controlled to extend upwards for a certain distance, so that the lifting frame 9 is lifted to a certain height to ensure that the bearing frame 14 can bear the floor to be removed from the bottom. The vertical lifting device 15 is then controlled to move the carrying frame 14 upwards by a certain distance, so that the floor-resting surface 16 or the upper end of the resilient support on the carrying frame 14 is brought into contact with the bottom surface of the floor to be removed. And starting the transverse moving device and the longitudinal moving device immediately, and driving the transverse cutting machine 24 and the longitudinal cutting machine 31 to move to the positions right below the floor cutting marked lines respectively under the help of the laser calibrator, so as to control the saw blades of the cutting machines to align to the cutting marked lines. After the cutting machine is started, the saw blade height adjusting device is controlled to drive the cutting machine to move upwards for a certain distance, and after cutting is started, the cutting machine moves along the sliding rail and moves to cut according to the cutting mark line. After two parallel transverse cutting joints and two longitudinal cutting joints of each floor slab are finished, the impact hammer is started, and hammering is carried out from bottom to top, so that the cut floor slab falls to the upper end of the elastic support piece under the action of gravity and falls on the floor slab laying surface 16 after being buffered by the elastic support piece. And finally, controlling the vertical lifting device 15 to drive the bearing frame 14 to move downwards to the bottom of the lifting frame 9, and simultaneously controlling the heightening hydraulic cylinder 8 to drive the lifting frame 9 to move downwards to finish the dismantling and downward transportation of a single floor slab.

While the invention has been described in detail with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit of the invention.

Claims

1. The utility model provides a building increases floor height and reforms construction equipment of enlargement, includes supports steelframe (4), supports steelframe (4) and shelves on ground floor (1), its characterized in that: the supporting steel frames (4) are more than one and are arranged in pairs, a lifting frame (9) is arranged between the two supporting steel frames (4) which are distributed in parallel, a heightening hydraulic cylinder (8) is arranged between the upper end of each supporting steel frame (4) and the four corners of the upper part of each lifting frame (9), horizontal sliding rails (10) are horizontally arranged on the left side and the right side of the bottom of each lifting frame (9) along the length direction of each supporting steel frame (4), sliding seats (11) are arranged on the horizontal sliding rails (10), vertical lifting devices (15) are vertically arranged on the sliding seats (11), horizontally-arranged bearing frames (14) are arranged at the upper ends of the vertical lifting devices (15), and the upper surfaces of the bearing frames (14) are floor slab placing surfaces (16), a transverse moving frame (21) and a longitudinal moving frame (28) are respectively arranged at the bottom of the bearing frame (14), the transverse moving frame (21) and the longitudinal moving frame (28) are positioned on different horizontal planes and are vertically distributed, a transverse moving device for driving the transverse moving frame (21) to move back and forth is arranged between the bearing frame (14) and the transverse moving frame (21), a longitudinal moving device for driving the longitudinal moving frame (28) to move back and forth is arranged between the bearing frame (14) and the longitudinal moving frame (28), a transverse cutting machine (24) is arranged on the transverse moving frame (21) through a saw blade transverse moving device, and a longitudinal cutting machine (24) is arranged on the longitudinal moving frame (28) through the saw blade longitudinal moving device 31).

2. The building incremental floor height rebuilding and expanding construction equipment of claim 1, wherein: the transverse moving device and the longitudinal moving device respectively comprise a lead screw (25), a servo motor (26) and a lead screw nut (27), the lead screw (25) on the transverse moving device is transversely arranged on a horizontal plane, one end of the lead screw (25) is installed on the bearing frame (14) through a lead screw bearing seat, the other end of the lead screw (25) is coaxially fixed with a rotating shaft of the servo motor (26), and a shell of the servo motor (26) is installed and fixed on the bearing frame (14); a lead screw (25) on the longitudinal moving device is longitudinally arranged on a horizontal plane, one end of the lead screw (25) is installed on the bearing frame (14) through a lead screw bearing seat, the other end of the lead screw (25) is coaxially fixed with a rotating shaft of a servo motor (26), and a shell of the servo motor (26) is installed and fixed on the bearing frame (14).

3. The building incremental floor height rebuilding and expanding construction equipment of claim 1, wherein: a plurality of steel rollers (5) are installed through the universal wheel seat in the bottom of supporting steelframe (4), and telescopic landing leg (6) are installed at the bottom four corners or a plurality of atress positions of supporting steelframe (4), and the top of supporting steelframe (4) is provided with floor support piece (7).

4. The building incremental floor height rebuilding and expanding construction equipment of claim 1, wherein: the lower end of the lifting frame (9) extends to the lower parts of two support steel frames (4) which are arranged in parallel, and the front end and the rear end of the lower part of the lifting frame (9) are horizontally connected with a bottom cross beam (12); the vertical lifting device (15) is a fork-shaped lifting device, and a hydraulic telescopic cylinder or an electric telescopic rod is arranged on the fork-shaped lifting device.

5. The building incremental floor height rebuilding and expanding construction equipment of claim 1, wherein: the floor slab temporary supporting and buffering device is characterized in that an impact hammer (35) is mounted on the bottom of the bearing frame (14), the transverse moving frame (21) or the longitudinal moving frame (28), an impact hammer head of the impact hammer (35) faces the bottom, on the inner side of a floor slab cutting seam, of the floor slab, the bottom is detached, a plurality of mounting holes (17) are formed in the floor slab placing surface (16), and elastic supporting pieces capable of temporarily supporting and buffering the floor slab are mounted in the mounting holes (17).

6. The building incremental floor height rebuilding and expanding construction equipment of claim 1, wherein: the elastic support piece comprises an adjustable sleeve (18), a support steel column (19) and a damping spring (20), the adjustable sleeve (18) is installed at the bottom of the installation hole (17) through threads, the support steel column (19) is installed inside the adjustable sleeve (18) from top to bottom, and the damping spring (20) is installed between the support steel column (19) and the bottom of the inner side of the adjustable sleeve (18).

7. The building incremental floor height rebuilding and expanding construction equipment of claim 1, wherein: the saw blade transverse moving device comprises a transverse sliding rail (22), a transverse sliding seat (23), a rack (32), a gear (33) and a driving motor (34), wherein the transverse sliding rail (22) is arranged on a transverse moving frame (21) along the length direction, the transverse sliding seat (23) is installed on the transverse sliding rail (22), a transverse cutting machine (24) is installed on the transverse sliding seat (23), the rack (32) parallel to the transverse sliding rail (22) is arranged on the transverse moving frame (21), the driving motor (34) is installed on the transverse sliding seat (23), the gear (33) is fixed on an output shaft of the driving motor (34), and the gear (33) is meshed with the rack (32).

8. The building incremental floor height rebuilding and expanding construction equipment of claim 1, wherein: the saw blade longitudinal moving device comprises a longitudinal sliding rail (29), a longitudinal sliding seat (30), a rack (32), a gear (33) and a driving motor (34), the longitudinal sliding rail (29) is arranged on a longitudinal moving frame (28) along the length direction, the longitudinal sliding seat (30) is installed on the longitudinal sliding rail (29), a longitudinal cutting machine (31) is installed on the longitudinal sliding seat (30), the rack (32) parallel to the longitudinal sliding rail (29) is arranged on the longitudinal moving frame (28), the driving motor (34) is installed on the longitudinal sliding seat (30), the gear (33) is fixed on an output shaft of the driving motor (34), and the gear (33) is meshed with the rack (32).

9. The building storey height-increasing rebuilding and expanding construction equipment of claim 1, wherein: the horizontal sliding seat (23) is provided with a horizontal cutting machine (24) through a saw blade height adjusting device, the vertical sliding seat (30) is provided with a vertical cutting machine (31) through a saw blade height adjusting device, and the saw blade height adjusting device is a lifting adjuster or a swinging adjuster.

10. A reconstruction and extension construction method for increasing the storey height of a building is characterized by comprising the following steps:

a. firstly, arranging supporting steel frames (4) on a ground floor (1), installing a lifting frame (9) between two adjacent supporting steel frames (4), enabling the lifting frame (9) to be positioned right below a floor to be dismantled, stably supporting the supporting steel frames (4) through telescopic supporting legs (6), and propping the floor or a cross beam outside the floor to be dismantled by a floor supporting piece (7);

b. then, a bearing frame (14) is arranged on the lifting frame (9), cutting equipment and auxiliary devices thereof are prepared, and the floor slabs to be removed are marked in a partition mode according to the removal sequence;

c. controlling the heightening hydraulic cylinder (8) to extend upwards for a certain distance, so that the lifting frame (9) is lifted to a certain height to ensure that the bearing frame (14) can bear the floor or the cross beam to be dismantled from the bottom;

d. then, the vertical lifting device (15) is controlled to act to drive the bearing frame (14) to move upwards for a certain distance, so that the floor slab laying surface (16) on the bearing frame (14) or the upper end of the elastic support part is contacted with the bottom surface of the floor slab to be removed;

e. the transverse moving device and the longitudinal moving device are started immediately, the transverse cutting machine (24) and the longitudinal cutting machine (31) are respectively driven to move to the positions right below the floor cutting marked lines under the help of the laser calibrator (42), and the saw blade of the cutting machine is controlled to be aligned with the cutting marked lines;

g. after two parallel transverse cutting seams and two longitudinal cutting seams of each floor slab are finished, starting the impact hammer (35), hammering from bottom to top, so that the cut floor slabs fall to the upper end of the elastic supporting piece under the action of gravity, and fall on the floor slab laying surface (16) after being buffered by the elastic supporting piece;

h. and finally, controlling a vertical lifting device (15) to drive a bearing frame (14) to move downwards to the bottom of the lifting frame (9), and simultaneously controlling a heightening hydraulic cylinder (8) to drive the lifting frame (9) to move downwards to finish the dismantling and downward transportation of a single floor slab, thereby realizing the increase of the story height of the building.