CN110371823B - Self-lifting hoisting equipment suitable for assembly type additional elevator construction and construction method - Google Patents
Self-lifting hoisting equipment suitable for assembly type additional elevator construction and construction method Download PDFInfo
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- CN110371823B CN110371823B CN201910786216.8A CN201910786216A CN110371823B CN 110371823 B CN110371823 B CN 110371823B CN 201910786216 A CN201910786216 A CN 201910786216A CN 110371823 B CN110371823 B CN 110371823B
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- 238000010276 construction Methods 0.000 title claims abstract description 109
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 238000009434 installation Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 85
- 239000010959 steel Substances 0.000 claims description 85
- 239000000725 suspension Substances 0.000 claims description 67
- 239000003638 chemical reducing agent Substances 0.000 claims description 27
- 230000008569 process Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000004566 building material Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/002—Mining-hoist operation installing or exchanging guide rails
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/005—Mining-hoist operation installing or exchanging the elevator drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
Abstract
The invention discloses self-lifting hoisting equipment suitable for the construction of an assembled external elevator, mainly include bearing base, hoist mechanism, from hoist mechanism and control system: the bearing base is firmly connected with the lower part of the elevator shaft to jointly bear the load in construction; the self-lifting mechanism completes the integral lifting of the equipment by means of the elevator car guide rail; hoisting operation is carried out by the hoisting mechanism; the control system coordinates actions among all mechanisms; the elevator car elevator fully utilizes the elevator shaft as a supporting structure, takes the elevator car as an operation platform, and has the characteristics of small volume, light weight, simple structure, convenience, flexibility, small operation range, easiness in carrying and installation and the like by virtue of the guiding and safety device of the car; by adopting the equipment and the method for construction, the lifting of the well structure and the installation and construction of the elevator equipment are organically combined, so that the construction interference is reduced, the safety guarantee is improved, the precision is high, the speed is high, and the development trend of building industrialization, standardization and assembly is met.
Description
Technical Field
The invention relates to installation equipment and a construction method of an assembled building structure, in particular to equipment and a construction method for building and installing an elevator outside an existing multi-storey building by factory standardized prefabrication and field sectional assembly.
Background
China has become the most populated country for the elderly in the world, and the problem of social aging has been very serious. By 2017, 60 years old and older people in China account for 2.4 hundred million people, accounting for 17.3% of the total population, and 65 years old and older people account for 1.58 hundred million people, accounting for 11.4% of the total population.
However, in urban residences in China, a large number of multi-storey residences built in the eighth and nineties of the 20 th century are limited by the current economic development level, the construction standard and the related building specifications, and no elevator is built. Along with the trend of serious population aging in China, the method is imperative for the aging adaptation of the existing multi-storey residential building with the elevator.
In recent years, various local governments such as Guangdong, shanghai, beijing, fuzhou, hangzhou and the like encourage urban residents to pay and install elevators by themselves, a great deal of engineering practice of transformation is developed, and a good social effect is achieved. Meanwhile, the improvement of old communities in the advanced towns is used as a civil engineering for improving the living conditions of the masses, and the multi-layer residence of the old communities is encouraged to be additionally provided with the elevator.
At present, most of the existing related technologies of elevator installation of multi-storey buildings adopt a construction mode of factory integral prefabrication and field integral hoisting. Although the whole hoisting construction on site can be completed by using a general large crane, in general, because of narrow road inside the site, the distance between existing buildings is limited, and the interference of surrounding trees, street lamps and the like is added, large transport vehicles and hoisting machinery are difficult to enter. Even if the construction site can be approached, not only is the operation space limited, but also the safety measures cannot be guaranteed, and the potential safety hazard is large, so that the interference to residents is large. Therefore, a special small-sized hoisting device for the hoisting construction of the elevator engineering additionally installed on the existing multi-story building is urgently needed.
In the prior art, as disclosed in patent document CN107215749a, an elevator shaft structure and a lifting method are disclosed, and a construction mode of factory integral prefabrication site segmented lifting is proposed. However, the lifting device is installed on the side edge of the lower layer structure frame, the lifting device needs to be lifted to a new height after each lifting operation is finished, the next lifting operation is completed, the lifting operation needs to be completed in two directions of vertical and horizontal, the operation links are more, and the technology is complex. In addition, after the main body frame structure is constructed, construction such as elevator shaft curtain walls, partition walls, floors, roofs and the like are carried out, and a scaffold still needs to be built during reconstruction and reinforcement construction of the original building.
Disclosure of Invention
Aiming at the problems of limited construction space, large interference to residents, potential safety hazard, multiple operation links, complex technology and the like in the existing multi-layer building assembly type additional elevator shaft engineering, the invention provides self-lifting hoisting equipment and a construction method suitable for the assembly type additional elevator construction. The equipment has the advantages of small volume, small occupied space, short construction period, small interference to residents, convenience, safety and rapidness in hoisting construction of the elevator shaft.
In order to solve the technical problems, the invention provides self-lifting hoisting equipment and a construction method suitable for the construction of an assembled external elevator well, and the technical scheme is as follows:
the invention provides self-lifting hoisting equipment suitable for assembly type externally-added elevator construction, and relates to an elevator shaft structure and elevator equipment, wherein the elevator shaft structure and the elevator equipment comprise a reinforced concrete foundation, an elevator shaft, a floor slab, a roof, an elevator car, a car track and an elevator beam; the elevator hoistway includes a steel structure and a lightweight curtain wall, the steel structure including N standard floor structural units, a first floor structural unit, and a top floor structural unit. The self-lifting hoisting equipment comprises a bearing base, a hoisting mechanism, a self-lifting mechanism and a control system.
The bearing base comprises a base frame, inclined struts, a rotary chassis and a hydraulic mechanism; the base frame consists of a main beam and a secondary beam, the main beam is of a telescopic structure, and a first hydraulic propulsion device is arranged in the main beam; connecting feet higher than the top surface of the main beam are arranged at two ends of the main beam and are firmly connected with a steel structure cross beam of an elevator shaft through connecting pieces; the base frame is fixed with the upper cross beam of the elevator car, the diagonal bracing is of a telescopic structure, and two ends of the diagonal bracing are respectively connected with the base frame and the elevator car; the rotary chassis is fixed on the base frame and comprises a circular guide rail and an annular tray, two hinged supports are fixed on the annular tray, and the annular tray rotates around the circle center of the circular guide rail under the drive of a motor; the hydraulic mechanism is arranged below the rotary chassis.
The hoisting mechanism comprises a suspension arm, a hydraulic rod, a hoisting motor, a speed reducer, a hoisting winch, a hoisting steel rope and a fixed pulley; the bottom ends of the suspension arm and the hydraulic rod are respectively hinged with a hinged support on the rotary chassis annular tray; the suspension arm is L-shaped, the long side of the L-shaped suspension arm is of a telescopic structure, and a second hydraulic propulsion device is arranged in the suspension arm; the free end of the L-shaped long side of the suspension arm is provided with a fixed pulley; the middle part of the L-shaped long side of the suspension arm is hinged with the upper end of the hydraulic rod; and an oil guide pipe of the hydraulic mechanism is connected with a first hydraulic propulsion device in the main beam of the base frame, a second hydraulic propulsion device in the L-shaped long side of the suspension arm and a hydraulic cylinder of the hydraulic rod.
The self-lifting mechanism comprises a lifting motor, a speed reducer, a lifting winch and a lifting steel rope; the self-lifting mechanism is fixed on the base frame; when the self-lifting operation is performed, the lifting steel rope is hung on the elevator beam, the lifting motor and the speed reducer are driven to drive the lifting winch and the lifting steel rope, and the self-lifting hoisting equipment and the elevator car are lifted to the upper layer of structural height.
The control system is used for controlling the rotating direction, angle and speed of the rotating chassis, and controlling the telescopic length and telescopic speed of the main beams in the suspension arm, the hydraulic rod and the base frame, the pitching angle of the suspension arm, the steering and rotating speed of the hoisting motor and the speed reducer and the hoisting motor and the speed reducer through the hydraulic mechanism; the display panel of the control system feeds back and displays the rotating direction, angle and speed of the rotating chassis in real time, the telescopic length and telescopic speed of the main beams in the suspension arm, the hydraulic rod and the base frame, the pitching angle of the suspension arm, the steering and rotating speed of the lifting motor and the speed reducer and the lifting load and the lifting height.
Furthermore, the self-lifting hoisting equipment is firmly connected with the steel structure cross beam of the elevator well which is finished at the lower part through the main beam in the base frame, and the finished elevator well is used as a vertical bearing support structure of the self-lifting hoisting equipment.
The self-lifting hoisting equipment is firmly connected with the elevator car through the base frame and the diagonal braces, and the car track, the guide shoe and the safety tongs are used as a vertical guide and safety braking device of the self-lifting hoisting equipment in the self-lifting process.
The self-lifting hoisting equipment is firmly connected with the elevator car through the base frame and the diagonal braces, and the elevator car is used as a platform for vertical transportation and personnel operation in the construction process.
In the self-lifting hoisting equipment, the end part of the connecting pin is of an opening structure, the opening is Y-shaped, and a round hole slightly larger than the opening end is arranged at the rear end of the opening; the opening at the end part of the connecting pin clamps a connecting piece preassembled on a steel structure beam of an elevator shaft, a locking nut is arranged on the connecting piece, and a round hole at the rear end of the opening of the connecting pin is used for accommodating the locking nut so as to ensure that the connecting pin and the connecting screw rod cannot slip.
Meanwhile, the invention also provides a construction method for the assembled additional elevator by utilizing the self-lifting hoisting equipment, which is characterized in that after the hoisting construction of a certain standard layer of structural unit of an elevator well is completed, the self-lifting hoisting equipment is lifted to a previous standard layer of structural unit through a self-lifting mechanism, and the hoisting construction of the previous layer of structural unit is carried out until the hoisting construction of the top layer of structural unit is completed.
In addition, the construction method of the assembled externally-added elevator of the invention carries out the installation of the elevator car and the braking device comprising the guide shoe and the safety tongs after the steel structure construction of the first-layer structural unit of the elevator shaft is completed; after the installation construction of each floor of the elevator shaft structural unit is completed, the car track of the corresponding floor is installed, the civil engineering construction of the elevator shaft is combined with the installation construction of the elevator equipment, and the cross synchronization is carried out.
The construction method of the assembled additional elevator comprises the following specific processes:
firstly, excavating a foundation pit, and making a reinforced concrete foundation and pre-buried connecting members; installing a steel structure in a first floor structural unit of an elevator hoistway; installing elevator car tracks at corresponding positions in the first-layer structural unit; installing an elevator car frame, left and right vertical beams, an upper cross beam, a car chassis and a safety braking device comprising guide shoes and safety tongs;
step two, installing self-lifting hoisting equipment, comprising: the bearing base is arranged on the top of the elevator car and is firmly connected with the upper cross beam of the elevator car, and the bearing base is firmly connected with the left and right vertical beams of the elevator car or the car chassis by using diagonal braces; mounting a suspension arm and a hydraulic rod of the hoisting mechanism on a hinged support of a circular tray in the rotary chassis; the oil guide pipe of the hydraulic mechanism is respectively connected with a first hydraulic propulsion device of a main beam in the base frame, a second hydraulic propulsion device in the L-shaped long side of the suspension arm and a hydraulic cylinder of the hydraulic rod, and debugging is carried out;
Step three, the equipment is self-lifted and fixed with the first layer structure unit, comprising: fixing an elevator beam above a first floor structure unit of an elevator shaft at a position corresponding to a lifting winch; the boom arm is contracted to the shortest state through the hydraulic mechanism, and the angle between the boom arm and the hydraulic rod is adjusted, so that the equipment is in a gravity center stable state; rotating the suspension arm and the hydraulic rod to a direction parallel to the elevator beam by controlling the rotating chassis; hanging a lifting steel rope on an elevator beam, and driving a lifting motor to vertically lift the self-lifting hoisting equipment and an elevator car upwards along a car track, wherein the connecting feet of the main beam on the base frame slightly exceed the top surface of the beam on the upper part of the elevator shaft head layer structural unit; the hydraulic mechanism is driven to extend the main beam of the base frame, and the connecting feet are fixed with the steel structure cross beam at the upper part of the first-layer structural unit through the connecting piece;
hoisting the two-layer structural unit, wherein the hoisting comprises the following steps: the two-layer structure unit of the elevator shaft is installed on the ground, the horizontal direction and the vertical angle of the suspension arm are adjusted by controlling the rotary chassis and the hydraulic mechanism, the fixed pulley at the front end of the suspension arm is positioned at a proper position above the two-layer structure unit, the hoisting steel rope is released, the hoisting steel rope is connected, the two-layer structure unit is hoisted, and the lowest point of the two-layer structure unit exceeds the height of the first-layer structure unit; the angle and the length of the suspension arm are adjusted through the hydraulic mechanism, so that the two-layer structure unit is positioned right above the first-layer structure unit, the hoisting steel rope is slowly released, the lower outer side of the two-layer structure unit is aligned with the position corresponding to the first-layer structure unit, and the two-layer structure unit is temporarily fixed; the angle and the length of the suspension arm are adjusted through the hydraulic mechanism, meanwhile, the hoisting steel rope is slowly released, the two-layer structure unit is rightly aligned, and the bottom of the two-layer structure unit is fixed with the top of the first-layer structure unit;
Step five, the equipment is lifted automatically and fixed with the two-layer structural unit, comprising: installing elevator car tracks at corresponding positions of a second floor structure unit of the elevator hoistway; releasing the hoisting steel rope, contracting the suspension arm to the shortest state, and rotating to the inside of the elevator shaft; removing the elevator beam, extending the suspension arm, adjusting the direction and angle of the suspension arm, hoisting the elevator beam to the corresponding position of the top of the two-layer structure unit of the elevator shaft, and fixing; the suspension arm is contracted to the shortest state, the suspension arm and the hydraulic rod are rotated to the direction parallel to the elevator beam, and the angle between the suspension arm and the hydraulic rod is adjusted, so that the equipment is in a gravity center stable state; releasing the fixing of the connecting feet and the steel structure cross beam at the upper part of the first-layer structural unit; the lifting equipment enables the connecting feet to be separated from the steel structure cross beam at the upper part of the first-layer structure unit, and contracts the main beam of the base frame; continuing to lift the equipment to the connecting feet of the main beam on the base frame slightly exceed the top surface of the steel structure cross beam on the upper part of the two-layer structure unit of the elevator shaft; extending a main beam of the base frame, and fixing the connecting feet with a steel structure beam at the upper part of the two-layer structure unit through a connecting piece;
step six, repeating the operations of the step four and the step five, hoisting each layer of structural units of the elevator shaft, self-lifting equipment and fixing the equipment and the corresponding layer of structural units layer by layer until the installation of all the structural units of the elevator shaft is completed;
Step seven, carrying out reconstruction and reinforcement construction of the original building; continuing to perform and finish civil construction of the elevator shaft including enclosure curtain walls, floors and roofs; and continuing to perform and finish the installation construction in the elevator traction machine, the steel rope, the counterweight, the track and the power and communication cable belt.
In the seventh step, if a construction scheme of separating the steel structure of the elevator shaft from the enclosure curtain wall is adopted, after the hoisting construction of each layer of steel structure unit of the elevator shaft is completed, equipment is kept at the topmost layer, and a hanging basket is hung through a suspension arm and a hoisting steel rope to serve as an operation platform, so that the installation construction of the enclosure curtain wall of the elevator shaft is carried out. When the original building is partially reconstructed and reinforced and the elevator shaft 20 is subjected to civil engineering, and when other parts of an elevator such as an elevator traction machine, a steel cable, an elevator counterweight rail, an electric power cable, a communication cable and the like are installed and constructed, an elevator beam fixed at the top of a top-layer structural unit is used as a support, and an elevator car is driven by a lifting motor, a speed reducer and the lifting steel cable to serve as a platform for vertical transportation of building materials and construction slag soil and operation of constructors.
Compared with the prior art, the invention has the beneficial effects that:
1. By adopting the equipment and the construction method, the elevator shaft which is completed at the lower part is used as a supporting structure, the equipment is lifted automatically layer by layer along with the construction progress, an independent supporting structure and a huge suspension arm are not needed, and the volume and the weight of the equipment are greatly reduced.
2. By adopting the equipment and the construction method, the elevator car rail, the guide shoe and the safety tongs are used as the vertical guiding and safety braking device for the self-lifting of the equipment, and the elevator car is used as a platform for the vertical transportation and the personnel operation of the construction, so that the structure of the equipment is greatly simplified.
3. By adopting the equipment and the construction method, the equipment is arranged in the elevator shaft, other sites are not occupied, the size and the operation range of the suspension arm are small, the interference to the daily life of residents is greatly reduced, and the construction safety is improved.
4. By adopting the equipment and the construction method, the organic combination of the civil construction of the elevator well and the installation construction of the elevator equipment is realized, the cross synchronization is carried out, the machine is multipurpose, and the construction efficiency and speed are greatly improved.
5. By adopting the equipment and the construction method, the equipment has high automation degree, the construction operation is simple and convenient, and the labor cost is greatly saved.
In a word, the device has the characteristics of small volume, light weight, simple structure, simple and convenient operation, easy transportation and installation and small operation space range. By adopting the equipment and the construction method, the practical problems that the internal roads of old communities are narrow, large transportation and hoisting vehicles are difficult to enter, the space of the old communities is narrow, the environment is complex, large hoisting machinery is used for construction, the internal interference of sites is large, the interference to residents and surrounding buildings is large, potential safety hazards exist and the like are solved; the construction efficiency is improved, the site construction period is shortened, the labor cost is reduced, the construction precision is improved, the construction quality and safety are guaranteed, the interference to the daily life of residents is reduced, and the development trend of building industrialization, standardization and assembly is met.
Drawings
FIG. 1-1 is a schematic perspective view of a hoisting device according to the present invention;
fig. 1-2 is a schematic perspective view of another view of the lifting device shown in fig. 1-1;
fig. 1-3 are perspective schematic views of a further view of the lifting device shown in fig. 1-1;
fig. 2-1 is a schematic perspective view of the hoisting apparatus of the present invention after being mounted to an elevator car;
fig. 2-2 is a schematic perspective view of the hoisting apparatus of fig. 2-1 from another perspective after installation in an elevator car;
Fig. 2-3 is a schematic perspective view of the hoisting apparatus of fig. 2-1 from another perspective after installation in an elevator car;
fig. 3-1 is a schematic diagram of the positional relationship of the hoisting apparatus, elevator car and elevator hoistway structural unit frame of the present invention;
fig. 3-2 is a schematic diagram of a second positional relationship of the hoisting apparatus, elevator car, and elevator hoistway structural unit frame of the present invention;
fig. 3-3 are schematic diagrams of the positional relationship of the hoisting apparatus, elevator car and elevator hoistway structural unit frame of the present invention;
fig. 4-1 is a schematic structural view of an elevator hoistway;
fig. 4-2 is a structural cross-sectional view of the elevator hoistway shown in fig. 4-1;
fig. 5-1 to 5-11 are respectively exploded views of steps of the construction process of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and specific examples, which are in no way limiting.
The invention provides self-lifting hoisting equipment suitable for assembly type externally-added elevator construction, and relates to an elevator shaft structure and elevator equipment, wherein the elevator shaft structure and the elevator equipment comprise a reinforced concrete foundation 10, an elevator shaft 20, a floor slab 30, a roof 40, an elevator car 60, a car track 61 and an elevator beam 65, and the elevator car 60 comprises a car track 61, a car frame 62, left and right vertical beams 63, an upper beam 64 and a car chassis 66; the elevator hoistway 20 comprises a steel structure and a light curtain wall, the steel structure comprises N standard layer structural units 22, a first layer structural unit 21 and a top layer structural unit 23, the standard layer structural units 22, the first layer structural unit 21 and the top layer structural unit 23 comprise more than four upright posts, and the tops of two adjacent upright posts in the same layer structural unit are connected through a cross beam; the outer sides of the standard layer structure unit 22, the first layer structure unit 21 and the top layer structure unit 23 are surrounded by light curtain walls; as shown in fig. 4-1 and 4-2.
The self-lifting hoisting device 50 of the invention comprises a bearing base 51, a hoisting mechanism 52, a self-lifting mechanism 53 and a control system.
As shown in fig. 2-1, 2-2, 2-3, 3-1, 3-2 and 3-3, the load bearing base 51 basically includes a base frame 511, a diagonal support 513, a rotating chassis 514 and a hydraulic mechanism 515; the base frame 511 mainly comprises girder and secondary beam, the girder is scalable structure, and inside is equipped with first hydraulic propulsion unit, the connecting leg 512 that exceeds the girder top surface is equipped with at the both ends of girder, the connecting leg 512 carries out firm connection through the connecting piece with the steel construction crossbeam of elevator well 20. In this embodiment, the base frame 511 includes two main beams and a plurality of secondary beams, where the two main beams are horizontally arranged in parallel left and right, and two ends of the secondary beams connecting the two main beams and horizontally arranged in orthogonal to the main beams are of a telescopic structure, so that the two ends of the secondary beams can be properly telescopic to adapt to the specifications and sizes of different cabins; each main beam comprises a fixed section positioned in the middle and telescopic sections at two sides, wherein a first hydraulic propulsion device is arranged in the fixed section so as to control the telescopic sections at two sides to stretch out and draw back, and the ends of the telescopic sections are propped against the steel structure cross beam of the elevator shaft 20 after stretching out; the outer end of the telescopic section is provided with a connecting pin 512 which is higher than the top surface of the main beam, and the end part of the connecting pin 512 is connected with a steel structure beam of the elevator well 20 through a connecting piece; the tip of connecting leg 512 is open structure for block the connecting screw rod of pre-installation on the steel construction crossbeam of elevator well 20, the opening of connecting leg 512 is the Y style of calligraphy, and big back is little before, and is equipped with the round hole slightly bigger than the open end at open end rear end, be equipped with lock nut on the connecting piece, the round hole of connecting leg 512 tip open rear end is used for holding lock nut to ensure can not the slippage between connecting leg and the connecting screw rod. Fig. 3-1, fig. 3-2 and fig. 3-3.
The base frame 511 is firmly connected with the upper beam 64 of the elevator car 60, the diagonal brace 513 is of a telescopic structure, and can be properly telescopic to adapt to different specifications and sizes of the elevator car, and two ends of the diagonal brace 513 are respectively firmly connected with the base frame 511 and the left and right vertical beams 63 or the car chassis 66 of the elevator car 60 frame, as shown in fig. 2-1, 2-2 and 2-3; the rotary chassis 514 is fixed on the base frame 511, is positioned between the left main beam and the right main beam and is close to the rear edge of the bearing base 51, and the rotary chassis 514 consists of a circular guide rail, an annular tray, a fluted disc, a gear, a motor, a limiter, a speed limiter and the like; the annular tray is fixed with two hinged supports, the annular tray is buckled on the circular guide rail, the fluted disc is fixed on the inner side below the annular tray, the fluted disc and the circular guide rail are of concentric structures, the fluted disc and the annular tray are driven by the motor driving gear, and the annular tray rotates around the circle center of the circular guide rail. In the present invention, the toothed disc in the rotary chassis 514 may be a face toothed disc or a face gear ring, the gear is a face gear, and the toothed disc and the gear are meshed by face teeth. Or, the fluted disc in the rotary chassis 514 is provided with an annular gear, the gear is an external gear, and the fluted disc is meshed with the gear by the internal and external teeth, so that the annular tray rotates around the circle center of the circular guide rail under the drive of the motor; the hydraulic mechanism 515 is disposed below the rotary chassis 514, and the hydraulic mechanism 515 is composed of an oil pump, an oil filter, an electromagnetic directional valve, a throttle valve, a hydraulic control check valve, a balance valve, an oil guide pipe, and the like.
As shown in fig. 1-1, 1-2 and 1-3, the hoisting mechanism 52 includes a boom 521, a hydraulic rod 522, a hoisting motor and decelerator 523, a hoisting winch 524, a hoisting cable 525 and a fixed pulley 526. The bottom ends of the boom 521 and the hydraulic rod 522 are respectively hinged to a hinged support on the annular tray of the rotating chassis 514.
The suspension arm 521 is in an L-shape, the long side of the L-shape is in a telescopic structure, a second hydraulic propulsion device is arranged in the long side, the long side is connected with the hydraulic mechanism 515 in the bearing base 51 through an oil guide pipe, the length of the long side after the long side is completely extended is larger than the height of the elevator hoistway standard layer structure unit, and the length of the long side after the long side is completely contracted is smaller than the height of the elevator hoistway standard layer structure unit; the free end of the L-shaped long side is provided with a fixed pulley 526, and the middle part of the L-shaped long side is hinged with the upper end of the hydraulic rod 522 through a hinge; the length of the L-shaped short side satisfies the condition that the L-shaped long side is completely outside the elevator hoistway when the L-shaped long side is in a vertical state, and the hoisting motor, the decelerator 523 and the hoisting winch 524 may be installed at the junction.
The oil guide pipe of the hydraulic mechanism 515 is connected with the first hydraulic propulsion device in the main beam of the base frame 511, the second hydraulic propulsion device in the L-shaped long side of the suspension arm 521 and the hydraulic cylinder of the hydraulic rod 522. The hydraulic rod 522 is telescopic in length, the lower end of the hydraulic rod is fixed on the rotary chassis 514 through a hinge, and the upper end of the hydraulic rod is connected with the middle part of the L-shaped long side of the suspension arm 521 through a hinge; one end of the hoisting steel rope 525 is wound on the hoisting winch 524, the other end of the hoisting steel rope 525 is hung down through the fixed pulley 526 positioned at the upper end of the L-shaped long side of the suspension arm 521 to be connected with a hook, the hoisting motor and the speed reducer 523 drive the hoisting winch 524, and the hoisting winch 524 drives the hoisting steel rope 525 to finish hoisting operation.
1-2, 1-3 and 5-3, the self-lifting mechanism 53 includes a lifting motor and decelerator 531, a lifting winch 532 and a lifting cable 533; the self-lifting mechanism 53 is fixed on the secondary beam of the foundation frame 511, and is located between the two main beams 511 and close to the front edge of the bearing foundation 51; one end of the hoisting rope 533 is wound around the hoisting winch 532, and during self-hoisting operation, the other end is hooked on the elevator beam 65 through a hook, and the hoisting winch 532 and the hoisting rope 533 are driven by the driving of the hoisting motor and the speed reducer 531, so that the self-hoisting equipment 50 and the elevator car 60 are hoisted to the upper structural height along the track of the elevator car.
The control system is used for coordinating actions among all parts in the equipment so as to realize action coordination among all parts of the equipment. Specifically, the control system controls the direction, angle and speed of rotation of the rotating chassis 514, controls the L-shaped long side of the boom 521, the telescopic length and telescopic speed of the hydraulic rod 522 and the main beam in the base frame 511, the pitch angle of the boom 521, and the steering and rotation speeds of the hoisting motor and decelerator 523 and the hoisting motor and decelerator 531 by the hydraulic mechanism 515; the display panel of the control system feeds back and displays the rotating direction, angle and speed of the rotating chassis 514 in real time, the L-shaped long side of the suspension arm 521, the hydraulic rod 522 and the telescopic length and telescopic speed of the main beam, the pitching angle of the suspension arm 521, the steering and rotating speeds of the hoisting motor and speed reducer 523 and the hoisting motor and speed reducer 531, and the hoisting load and hoisting height.
The self-lifting hoisting device of the invention is firmly connected with the steel structure beam of the elevator well 20 which is finished at the lower part through the main beam in the base frame (511), and the finished elevator well (20) is used as the vertical bearing support structure of the self-lifting hoisting device, as shown in figures 3-1, 3-2 and 3-3. The main beam and the diagonal brace 513 in the base frame (511) are firmly connected with the elevator car 60, and the car track 61, the guide shoe and the safety tongs are used as vertical guiding and safety braking devices of the self-lifting hoisting device 50 in the self-lifting process, as shown in fig. 2-1, 2-2 and 2-3. The elevator car 60 fixed to the load bearing base 51 serves as a person operating platform of the self-elevating hoisting device 50 as shown in fig. 2-1, 2-2 and 2-3.
Construction is performed by using the self-lifting hoisting device provided by the invention, after the hoisting construction of a certain standard floor structure unit 22 of the elevator shaft 20 is completed, the self-lifting hoisting device 50 is lifted to the previous standard floor structure unit by the self-lifting mechanism 53, and the hoisting construction of the previous floor structure unit is performed until the hoisting construction of the top floor structure unit 23 is completed. After the steel construction of the first floor construction unit 21 of the elevator hoistway is completed, the installation of the elevator car 60 and the brake device including the guide shoe and the safety gear is performed; after the installation of the structural units of each elevator hoistway 20 is completed, the car rails 61 of the corresponding floor are installed, and the civil engineering of the elevator hoistway 20 and the installation of the elevator equipment are combined and synchronized in a crossing manner.
The construction method comprises the following specific processes:
firstly, excavating a foundation pit, and manufacturing a reinforced concrete foundation 10 and pre-buried connecting members; installing the steel structure in the first floor construction unit 21 of the elevator hoistway, the maintenance curtain wall in the first floor construction unit 21 is usually installed last, as shown in fig. 5-1 and 5-2; an elevator car rail 61 is arranged at a corresponding position of the first floor structure unit 21, an elevator car frame (62) is arranged, and the elevator car rail 61 is fixed at a corresponding position of a cross beam of the elevator shaft first floor structure unit 21 and the side wall of an elevator foundation pit through a standard connecting piece according to the specific model and design requirements of an elevator; then, the main structure of the elevator car 60 including the left and right vertical beams 63 of the car frame 62, the upper beam 64, the lower beam, the car chassis 66, the top frame, the side frames and the braces, and the safety brake device including the guide shoes and the safety tongs are installed in the elevator pit.
Step two, mounting self-lifting hoisting equipment:
as shown in fig. 5-3, the load bearing base 51 is mounted on top of the elevator car 60 and is firmly connected with the upper beam 64 of the elevator car, and the load bearing base 51 is firmly connected with the left and right upright beams 63 or the car chassis 66 of the elevator car 60 by using the diagonal braces 513; mounting the boom 521 and the hydraulic rod 522 of the lifting mechanism 52 to the hinged support of the annular tray of the rotating chassis 514; the oil guide pipe of the hydraulic mechanism 515 is respectively connected with the first hydraulic propulsion device of the main beam in the base frame 511, the second hydraulic propulsion device in the L-shaped long side of the suspension arm 521 and the hydraulic cylinder of the hydraulic rod 522, and is connected with a power supply, a control system and the like for debugging.
Step three, self-lifting of the device and fixing with the first layer structural unit 21:
fixing the elevator beam 65 at a position above the first floor structure unit 21 of the elevator hoistway 20 and corresponding to the hoisting winch 532; hanging the hoisting cable 533 on the elevator beam 65, contracting the long side of the L-shaped boom 521 to the shortest state by the hydraulic mechanism 515, and adjusting the angle between the boom 521 and the hydraulic rod 522 to make the equipment in a gravity center stable state; by controlling the rotation of the rotating chassis 514 to rotate the boom 521 and the hydraulic rod 512 to a direction parallel to the elevator beam 65, as shown in fig. 5-3, the hoisting cable 533 is hung on the elevator beam 65, and the hoisting motor is driven to slowly and uniformly hoist the whole self-hoisting equipment 50 together with the elevator car 60 vertically upwards along the car track 61, and the connecting leg 512 of the main beam to the base frame 511 slightly exceeds the top surface of the upper beam of the elevator hoistway first layer structural unit 21; the hydraulic mechanism 515 is driven, the main beam of the foundation frame 511 is extended, the fixing bolts pre-installed on the upper cross beam of the first-layer structural unit 21 are clamped through the openings of the connecting pins 512, and the connecting pins 512 are fixed with the steel-structure cross beam on the upper portion of the first-layer structural unit 21 through connecting pieces, as shown in fig. 5-4.
Step four, hoisting the elevator shaft two-layer structure unit 22, including:
the elevator shaft two-layer structure unit 22 is installed on the ground, the horizontal direction of the suspension arm 521 is adjusted by controlling the rotary chassis 514 and the hydraulic mechanism 515, the suspension arm 521 is extended by the hydraulic mechanism 515, meanwhile, the angle between the suspension arm 521 and the hydraulic rod 522 is adjusted, the fixed pulley at the front end of the suspension arm is positioned at a proper position above the two-layer structure unit 22, the hoisting motor and the speed reducer 523 are driven to release the hoisting steel cable 525 to the ground, and the installed two-layer structure unit 22 is hooked by a hook; the hoist motor and decelerator 523 are driven to retract the hoist rope 525 to vertically hoist the two-layered structure unit 22 as shown in fig. 5 to 5, and to allow the lowest point of the two-layered structure unit 22 to exceed the height of the first-layered structure unit 21.
The angle and length of the suspension arm 521 are adjusted by the hydraulic mechanism 515, the length of the hydraulic rod 522 is adjusted by the hydraulic mechanism 515 to control the vertical elevation angle of the suspension arm 521, so that the lower outer side (such as the bottoms of the two outer struts) of the two-layer structural unit 22 is positioned right above the corresponding position (such as the tops of the two outer struts) of the first-layer structural unit 21, the hoisting motor and the speed reducer 523 are driven to slowly release the hoisting steel rope 525, the lower outer side of the bottom of the two-layer structural unit 22 is aligned with the corresponding position (such as the bottoms of the two outer struts of the two-layer structural unit 22 and the tops of the two outer struts of the first-layer structural unit 21) of the two-layer structural unit 22, and the two-layer structural unit 22 is temporarily fixed to ensure that the two-layer structural unit is not horizontally displaced, as shown in fig. 5-6.
The length of the suspension arm 521 is adjusted by the hydraulic mechanism 515, the length of the hydraulic rod 522 is adjusted by the hydraulic mechanism 515 to control the vertical elevation angle of the suspension arm 521, meanwhile, the hoisting motor and the speed reducer 523 are driven to slowly release the hoisting steel rope 525, the two-layer structure unit 22 is righted, the two-layer structure unit 22 is aligned with the whole body of the first-layer structure unit 21, and the bottom of the two-layer structure unit 22 is fixed with the top of the first-layer structure unit 21 in a welding or bolting mode, as shown in fig. 5-7.
Step five, self-lifting of the device and fixing of the two-layer structure unit 22:
mounting and fixing car rails 61 at respective positions of the two-story building unit 22, e.g. the beams of the two-story building unit 22 and the beams of the first-story building unit 21 of the elevator hoistway, by means of standard connectors; the hoist rope 525 is released from the hook of the two-layer structure unit 22, the boom 521 is contracted to the shortest state by the hydraulic mechanism 515, the direction of the boom 521 and the hydraulic rod 522 is adjusted by controlling the rotating chassis 514, and it is rotated to the inside of the elevator shaft.
The connection between the elevator beam 65 and the top beam of the first floor structure unit 21 is released, the elevator beam 65 is detached, the elevator beam 65 is connected with the hoisting steel rope 525 through a hook, the driving hydraulic mechanism 515 stretches the suspension arm 521, the hoisting motor and the speed reducer 523 shrink the hoisting steel rope 525, the elevator beam 65 is vertically lifted to the top of the two-floor structure unit 22, the direction and the position of the elevator beam 65 are adjusted, the hoisting motor and the speed reducer 523 release the hoisting steel rope 525, and the elevator beam 65 is placed at a position corresponding to the hoisting winch 532 above the beam of the two-floor structure unit 22 of the elevator shaft and fixed.
The hook of the hoisting steel rope 525 and the elevator beam 65 is released, the hoisting motor and the speed reducer 523 are driven to shrink the hoisting steel rope 525, the hydraulic mechanism 515 is driven to shrink the suspension arm 521 to the shortest state, the angle of the suspension arm 521 and the hydraulic rod 522 is adjusted to enable the equipment to be in a gravity center stable state, and the suspension arm 521 and the hydraulic rod 512 are rotated to the direction parallel to the elevator beam 65 by controlling the rotation of the rotary chassis 514, as shown in fig. 5-8;
releasing the locking nuts on the connecting pins 512 of the main beams in the base frame 511 and the pre-installed fixing bolts on the upper cross beams of the first-layer structural units 21; hanging a lifting steel cable 533 on the elevator cross beam 65, driving a lifting motor and a speed reducer 531 to enable the whole self-lifting hoisting equipment 50 and the elevator car 60 to slowly lift vertically upwards along the elevator car track 61 at a uniform speed, and enabling connecting feet 512 at two ends of the main beam 511 on the bearing base 51 to be separated from the upper cross beam of the first-layer structural unit 21; the hydraulic mechanism 515 is actuated to retract the telescoping section of the main beam.
The whole self-lifting hoisting device 50 is slowly lifted upwards at a constant speed along the elevator car track 61 until the connecting feet 512 of the main beam 511 on the device bearing base 51 slightly exceed the top surface of the upper cross beam of the two-layer structure unit 22 of the elevator shaft, the hydraulic mechanism 515 is driven, the telescopic section of the main beam of the base frame (511) is extended, the opening of the connecting feet 512 is clamped by the fixing bolts pre-installed on the upper cross beam of the two-layer structure unit 22, and the main beam 511 and the steel structure cross beam of the two-layer structure unit 22 are pre-installed and fixed by the fixing bolts by locking nuts, as shown in fig. 5-9.
Step six, repeating the operations of the step four and the step five, hoisting each structural unit of the elevator shaft, self-lifting equipment and fixing the structural units of the corresponding layer by layer until the installation of all the structural units of the elevator shaft 20 is completed.
Step seven, carrying out reconstruction and reinforcement construction on the original building local wall body and door and window; building construction such as enclosure curtain walls, elevator hall partition walls, floors, roofs, doors and windows of the elevator shaft 20, first-floor outer walls of the elevator shaft 20, residential unit doors, entrance and exit rainsheds, indoor and outdoor ground pavement, step masonry and the like is performed.
Finally, the installation construction of other parts of the elevator is carried out, comprising: elevator hoisting machine and installation of steel ropes, counterweight and counterweight tracks, power and communication cables, car side walls, car doors, elevator doors, etc., and accurate teaching of elevator tracks.
The steel structure and the enclosure curtain wall in the elevator shaft structural unit can be assembled into a complete structural unit in advance, then the integral hoisting is carried out, or the steel structure in the elevator shaft structural unit can be hoisted first, and finally the installation of the enclosure curtain wall is carried out. If the second separate installation method is adopted to install the enclosure curtain wall, after the hoisting construction of each layer of steel structural unit of the elevator shaft 20 is completed, the self-lifting hoisting equipment 50 is kept at the topmost layer, and a hanging basket is hung as an operation platform through a hanging arm 521 and a hoisting steel rope 525 to carry out the installation construction of the enclosure curtain wall of the elevator shaft, as shown in fig. 5-10.
When the original building is partially transformed and reinforced and the building construction of the elevator well 20 is carried out, and when the elevator traction machine, the steel ropes, the elevator counterweight track, the electric power and communication cables and other parts of the elevator are installed and constructed, the hoisting mechanisms 52 such as the suspension arm 521, the hydraulic rod 522 and the like in the equipment can be disassembled, the elevator beam 65 fixed at the top of the top-layer structural unit is used as a support, the hoisting motor and the speed reducer 531 drive the hoisting steel rope 533 to drive the elevator car 60, and the elevator car 60 is used as a platform for building materials, construction slag transportation and personnel operation, as shown in fig. 5-11.
Although the invention has been described above with reference to the accompanying drawings, the invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by those of ordinary skill in the art without departing from the spirit of the invention, which fall within the protection of the invention.
Claims (10)
1. The utility model provides a self-lifting hoisting equipment suitable for assembled extra elevator construction, relates to elevator well structure and elevator equipment including reinforced concrete basis (10), elevator well (20), floor (30), roof (40), elevator car (60), car track (61) and elevator crossbeam (65), elevator car (60) include car frame (62), left and right side upright beam (63), entablature (64) and car chassis (66); the elevator hoistway (20) comprises a steel structure and a lightweight curtain wall, wherein the steel structure comprises N standard layer structural units (22), a first layer structural unit (21) and a top layer structural unit (23); the method is characterized in that:
The self-lifting hoisting equipment (50) comprises a bearing base (51), a hoisting mechanism (52), a self-lifting mechanism (53) and a control system;
the bearing base (51) comprises a base frame (511), a diagonal brace (513), a rotary chassis (514) and a hydraulic mechanism (515); the base frame (511) consists of a main beam and a secondary beam, wherein the main beam is of a telescopic structure, and a first hydraulic propulsion device is arranged in the main beam; connecting pins (512) higher than the top surface of the main beam are arranged at two ends of the main beam, and the connecting pins (512) are firmly connected with a steel structure beam of an elevator well (20) through connecting pieces; the base frame (511) is fixed with an upper cross beam (64) of the elevator car (60), the diagonal brace (513) is of a telescopic structure, and two ends of the diagonal brace are respectively connected with the base frame (511) and the elevator car (60); the rotary chassis (514) is fixed on the base frame (511), the rotary chassis (514) comprises a circular guide rail and an annular tray, two hinged supports are fixed on the annular tray, and the annular tray rotates around the circle center of the circular guide rail under the drive of a motor; the hydraulic mechanism (515) is arranged below the rotary chassis (514);
the hoisting mechanism (52) comprises a suspension arm (521), a hydraulic rod (522), a hoisting motor and a speed reducer (523), a hoisting winch (524), a hoisting steel rope (525) and a fixed pulley (526); the bottom ends of the suspension arm (521) and the hydraulic rod (522) are respectively hinged with a hinged support on the annular tray of the rotary chassis (514); the suspension arm (521) is L-shaped, the long side of the L-shaped is of a telescopic structure, and a second hydraulic propulsion device is arranged in the suspension arm; the free end of the L-shaped long side of the suspension arm (521) is provided with a fixed pulley (526); the middle part of the L-shaped long side of the suspension arm (521) is hinged with the upper end of the hydraulic rod (522); the oil guide pipe of the hydraulic mechanism (515) is connected with a first hydraulic propulsion device in the main beam of the base frame (511), a second hydraulic propulsion device in the L-shaped long side of the suspension arm (521) and a hydraulic cylinder of the hydraulic rod (522);
The self-lifting mechanism (53) comprises a lifting motor and a speed reducer (531), a lifting winch (532) and a lifting steel rope (533); the self-lifting mechanism (53) is fixed on the base frame (511); during self-lifting operation, the lifting steel rope (533) is hung on the elevator beam (65), the lifting motor and the speed reducer (531) are driven to drive the lifting winch (532) and the lifting steel rope (533), and the self-lifting hoisting equipment (50) and the elevator car (60) are lifted to the upper structural height;
the control system is used for controlling the rotating direction, angle and speed of the rotating chassis (514), controlling the telescopic length and telescopic speed of the main beams in the suspension arm (521), the hydraulic rod (522) and the base frame (511), the pitching angle of the suspension arm (521), the steering and rotating speed of the hoisting motor and the speed reducer (523) and the hoisting motor and the speed reducer (531) through the hydraulic mechanism (515); the display panel of the control system feeds back and displays the rotating direction, angle and speed of the rotating chassis (514) in real time, the telescopic length and telescopic speed of the main beam in the suspension arm (521), the hydraulic rod (522) and the base frame (511), the pitching angle of the suspension arm (521), the steering and rotating speed of the hoisting motor and the speed reducer (523) and the hoisting motor and the speed reducer (531), and the hoisting load and the hoisting height.
2. The self-lifting hoisting device suitable for use in assembly type externally added elevator construction as claimed in claim 1, wherein: the main beam in the base frame (511) is firmly connected with the steel structure cross beam of the elevator well (20) which is finished at the lower part, and the finished elevator well (20) is used as a vertical bearing support structure of the self-lifting hoisting equipment (50).
3. The self-lifting hoisting device suitable for use in assembly type externally added elevator construction as claimed in claim 1, wherein: the self-lifting hoisting device is firmly connected with an elevator car (60) through a base frame (511) and a diagonal brace (513), and a car track (61), guide shoes and safety tongs are used as vertical guiding and safety braking devices of the self-lifting hoisting device (50) in the self-lifting process.
4. The self-lifting hoisting device suitable for use in assembly type externally added elevator construction as claimed in claim 1, wherein: the elevator car (60) is firmly connected with the elevator car (60) through the base frame (511) and the diagonal braces (513), and the elevator car (60) is used as a platform for vertical transportation and personnel operation in the construction process.
5. The self-lifting hoisting device suitable for use in assembly type externally added elevator construction as claimed in claim 1, wherein: the end part of the connecting pin (512) is of an opening structure, the opening is Y-shaped, and a round hole slightly larger than the opening end is arranged at the rear end of the opening; the opening at the end part of the connecting pin (512) is used for clamping a connecting piece pre-installed on a steel structure beam of the elevator hoistway (20), a locking nut is installed on the connecting piece, and a round hole at the rear end of the opening of the connecting pin (512) is used for accommodating the locking nut so as to ensure that the connecting pin and the connecting screw cannot slip.
6. Construction method suitable for an assembled external elevator, characterized in that after the hoisting construction of a certain standard layer structure unit (22) of an elevator shaft (20) is completed by using the self-lifting hoisting equipment according to any one of claims 1 to 5, the self-lifting hoisting equipment (50) is lifted to the previous standard layer structure unit through a self-lifting mechanism (53), and the hoisting construction of the previous layer structure unit is performed until the hoisting construction of a top layer structure unit (23) is completed.
7. The construction method for the prefabricated add-on elevator according to claim 6, characterized in that after the steel construction of the first-floor construction unit (21) of the elevator shaft is completed, the installation of the elevator car (60) and the brake device comprising guide shoes and safety tongs is carried out;
after the installation of the structural units of each elevator shaft (20) is completed, the car rails (61) of the corresponding elevator shaft are installed, and the civil engineering of the elevator shafts (20) and the installation of the elevator equipment are combined and performed in a crossed and synchronous manner.
8. Construction method according to claim 6 or 7, applicable to a fitted external elevator, characterized in that it comprises the following steps:
firstly, excavating a foundation pit, and making a reinforced concrete foundation (10) and pre-buried connecting members; installing a steel structure in a first floor construction unit (21) of the elevator hoistway; installing an elevator car rail (61) at a corresponding position of the first floor structure unit (21); installing an elevator car frame (62), left and right vertical beams (63), an upper cross beam (64), a car chassis (66), and a safety brake device comprising guide shoes and safety tongs;
Step two, mounting self-lifting hoisting equipment (50):
the bearing base (51) is arranged on the top of the elevator car (60) and is firmly connected with an upper cross beam (64) of the elevator car, and the bearing base (51) is firmly connected with left and right upright beams (63) or a car chassis (66) of the elevator car (60) by using a diagonal brace (513);
mounting a boom (521) and a hydraulic rod (522) of a hoisting mechanism (52) to a hinged support of a ring-shaped tray in a rotating chassis (514);
the oil guide pipe of the hydraulic mechanism (515) is respectively connected with a first hydraulic propulsion device of a main beam in the base frame (511), a second hydraulic propulsion device in the L-shaped long side of the suspension arm (521) and a hydraulic cylinder of the hydraulic rod (522), and is debugged;
step three, the equipment is lifted automatically and fixed with the first layer structure unit (21):
fixing an elevator beam (65) at a position corresponding to a hoisting winch (532) above a first floor structure unit (21) of an elevator hoistway (20);
the boom (521) is contracted to the shortest state through the hydraulic mechanism (515), and the angle between the boom (521) and the hydraulic rod (522) is adjusted, so that the equipment is in a gravity center stable state;
rotating the boom (521) and the hydraulic rod (522) to a direction parallel to the elevator beam (65) by controlling the rotating chassis (514);
hanging a lifting steel rope (533) on an elevator beam (65), driving a lifting motor to vertically lift the self-lifting hoisting equipment (50) and the elevator car (60) upwards along a car track (61), and slightly exceeding the top surface of the upper beam of the elevator shaft first-layer structural unit (21) by a connecting foot (512) of a main beam on a base frame (511);
The hydraulic mechanism (515) is driven, the main beam of the base frame (511) is elongated, and the connecting feet (512) are fixed with the steel structure cross beam at the upper part of the first-layer structure unit (21) through connecting pieces;
hoisting the two-layer structure unit (22), wherein the hoisting comprises the following steps:
a two-layer structure unit (22) of an elevator shaft is installed on the ground, the horizontal direction and the vertical angle of a suspension arm (521) are adjusted by controlling a rotary chassis (514) and a hydraulic mechanism (515), a fixed pulley (526) at the front end of the suspension arm (521) is positioned at a proper position above the two-layer structure unit (22), a hoisting steel rope (525) is released, the hoisting steel rope (525) is connected, the two-layer structure unit (22) is hoisted, and the lowest point of the two-layer structure unit (22) exceeds the height of a first-layer structure unit (21);
the angle and the length of the suspension arm (521) are adjusted through the hydraulic mechanism (515), so that the two-layer structure unit (22) is positioned right above the first-layer structure unit (21), the hoisting steel rope (525) is slowly released, the lower outer side of the two-layer structure unit (22) is aligned with the corresponding position of the first-layer structure unit (21), and the two-layer structure unit is temporarily fixed;
the angle and the length of the suspension arm (521) are adjusted through the hydraulic mechanism (515), meanwhile, the hoisting steel rope (525) is slowly released, the two-layer structure unit (22) is righted and aligned, and the bottom of the two-layer structure unit (22) is fixed with the top of the first-layer structure unit (21);
Fifthly, the equipment is lifted automatically and fixed with the two-layer structure unit (22):
installing elevator car tracks (61) at respective locations of a second floor construction unit (22) of the elevator hoistway;
releasing the hoisting steel rope (525), contracting the suspension arm (521) to the shortest state, and rotating to the inside of the elevator shaft;
removing the elevator beam (65), extending the suspension arm (521), adjusting the direction and angle of the suspension arm (521), hoisting the elevator beam (65) to the corresponding position at the top of the elevator shaft two-layer structure unit (22), and fixing;
retracting the boom (521) to a shortest state, rotating the boom (521) and the hydraulic rod (522) to a direction parallel to the elevator beam (65), and adjusting the angle of the boom (521) and the hydraulic rod (522) to enable the equipment to be in a gravity center stable state;
releasing the fixing of the connecting feet (512) and the steel structure cross beam at the upper part of the first-layer structure unit (21);
the lifting equipment enables the connecting feet (512) to be separated from the steel structure cross beam at the upper part of the first-layer structure unit (21) and contracts the main beam of the base frame; continuing to lift the equipment to the connecting feet (512) of the main beam on the base frame (511) slightly beyond the top surface of the steel structure cross beam on the upper part of the elevator shaft two-layer structure unit (22);
the main beam of the extension base frame (511) is used for fixing the connecting feet (512) with the steel structure cross beam at the upper part of the two-layer structure unit (22) through the connecting piece; step six, repeating the operation of the step four and the step five, hoisting each layer of structural units of the elevator shaft, self-lifting equipment and fixing the equipment and the corresponding layer of structural units layer by layer until the installation of all the structural units of the elevator shaft (20) is completed;
Step seven, carrying out reconstruction and reinforcement construction of the original building; continuing and completing civil construction of the elevator shaft (20) including enclosure curtain walls, floors and roofs; and continuing to perform and finish the installation construction in the elevator traction machine, the steel rope, the counterweight, the track and the power and communication cable belt.
9. The construction method for the fabricated externally added elevator according to claim 8, wherein in the seventh step, if a construction scheme of separating the steel structure of the elevator shaft from the enclosure curtain wall is adopted, after the hoisting construction of each layer of steel structure unit of the elevator shaft (20) is completed, equipment is kept at the topmost layer, and a hanging basket is hung by a hanging arm (521) and a hoisting steel rope (525) to serve as a working platform, so that the installation construction of the enclosure curtain wall of the elevator shaft is carried out.
10. The construction method for the fabricated externally added elevator according to claim 8, wherein in the seventh step, when the original construction is partially modified, reinforced and the construction of the elevator shaft (20) is performed, and when the elevator traction machine and the steel rope, the elevator counterweight rail, the power and communication cables and other parts of the elevator are installed, the elevator beam (65) fixed on the top of the top-layer structural unit is used as a support, and the elevator car (60) is driven by the lifting motor and the speed reducer (531) and the lifting steel rope (533) to serve as a platform for building materials, vertical transportation of construction slag and construction personnel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910786216.8A CN110371823B (en) | 2019-08-24 | 2019-08-24 | Self-lifting hoisting equipment suitable for assembly type additional elevator construction and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786216.8A CN110371823B (en) | 2019-08-24 | 2019-08-24 | Self-lifting hoisting equipment suitable for assembly type additional elevator construction and construction method |
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| CN110371823A CN110371823A (en) | 2019-10-25 |
| CN110371823B true CN110371823B (en) | 2024-04-16 |
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| CN201910786216.8A Active CN110371823B (en) | 2019-08-24 | 2019-08-24 | Self-lifting hoisting equipment suitable for assembly type additional elevator construction and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111573573B (en) * | 2020-04-07 | 2021-07-06 | 中石化石油工程技术服务有限公司 | Elevator shaft construction device and construction method |
| CN113213352A (en) * | 2021-05-17 | 2021-08-06 | 华城(天津)建筑科技有限公司 | Hoisting device, combined suspension arm and positioning fastener for construction of modular additional elevator shaft |
| CN113753710A (en) * | 2021-08-27 | 2021-12-07 | 中建八局广西建设有限公司 | Method for inversely installing elevator shaft frame in narrow shaft |
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| CN109279480A (en) * | 2018-11-02 | 2019-01-29 | 广州广日电梯工业有限公司 | A kind of steel structure lift shaft splicing apparatus and method |
| CN110092264A (en) * | 2019-04-29 | 2019-08-06 | 北京天恒建设集团有限公司 | A kind of material hoisting system in construction time elevator well |
| CN210735910U (en) * | 2019-08-24 | 2020-06-12 | 华城(天津)建筑科技有限公司 | Self-lifting hoisting equipment suitable for assembly type additional elevator construction |
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| CN110371823A (en) | 2019-10-25 |
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