阅读说明：本技术 狭小井道内的电梯井道框架倒装方法 (Method for inversely installing elevator shaft frame in narrow shaft ) 是由 李源新 钟兴朝 郑丽丽 赵凡 谢正全 于 2021-08-27 设计创作，主要内容包括：本发明公开了一种狭小井道内的电梯井道框架倒装方法,通过对电梯井道框架分段划分,电梯井道框架场外加工厂加工和安装,再在电梯井内先安装底部框架单元,利用底部框架单元与楼板形成平台,后续为框架单元转运提供快捷运送走道,另一方面,对于其余框架单元,采用倒序安装。本发明解决了提升机主体框架,在狭小且无支撑点的井道内,采用传统的装配方法存在安装慢、效率低的问题。(The invention discloses an elevator shaft frame inverted installation method in a narrow shaft, which comprises the steps of segmenting and dividing an elevator shaft frame, processing and installing the elevator shaft frame outside a processing plant, installing a bottom frame unit in the elevator shaft, forming a platform by using the bottom frame unit and a floor slab, and providing a quick conveying passage for transferring the frame unit subsequently, wherein on the other hand, the other frame units are installed in a reverse order. The invention solves the problems of slow installation and low efficiency of a main body frame of the elevator in a narrow hoistway without a supporting point by adopting a traditional assembly method.)

1. An elevator shaft frame upside-down mounting method in a narrow shaft is characterized by comprising the following steps:

a. dividing an elevator hoistway frame into a bottom frame unit, a top frame unit, and a multi-section middle frame unit, a height of the bottom frame unit being adapted to a height of a pit of the elevator hoistway;

b. transferring the bottom frame unit into the pit via a door opening of the elevator hoistway and installing in the pit;

c. transferring the top frame unit to an upper portion of the bottom frame unit via a door opening of the elevator hoistway;

d. lifting the top frame unit such that a gap is formed between the top frame unit and the bottom frame unit, the gap having a height greater than a height of the middle frame unit;

e. transferring a middle frame unit into the gap and mounting to the bottom of the top frame unit to form an upper frame;

f. repeating the steps d and e, and sequentially installing the rest middle frame units at the bottom of the upper frame;

g. after all the middle frame units are sequentially mounted to the bottom of the upper frame, the middle frame unit of the bottom of the upper frame is mounted to the upper portion of the bottom frame unit to form an elevator shaft frame.

2. The method of claim 1, wherein prior to step b, a support frame is mounted on a roof and a hole is formed in the roof to communicate with the hoistway;

installing a lifting device on the supporting frame, and enabling a traction cable of the lifting device to penetrate through the through hole and extend into the elevator shaft;

connecting the traction ropes extending into the elevator hoistway to the top frame unit.

3. The method of claim 2, wherein the support frame is a gantry.

4. The hoistway frame inversion method of claim 2 wherein the step of transferring the bottom frame unit into the pit via a door opening of the hoistway comprises:

laying a plurality of rolling shafts on the floor slab of the door opening, wherein the plurality of rolling shafts are arranged along the axial direction of the door opening;

placing the bottom frame unit on a plurality of rollers and connecting the traction cable to the bottom frame unit;

pushing the bottom frame unit through the door opening to the interior of the elevator hoistway while the hoist retracts the traction rope to hoist the bottom frame unit;

lowering the traction cable by the lifting device so that the bottom frame unit is accommodated in the pit;

installing the bottom frame unit in the pit.

5. The method of claim 4, wherein after the bottom frame unit is installed in the pit, a loading plate is laid on an upper portion of the bottom frame unit such that the loading plate is flush with the floor.

6. The method of inverting an elevator hoistway frame in a narrow hoistway according to claim 1, further comprising:

installing guide rails on a hoistway frame after forming the hoistway frame in the hoistway;

and a car is arranged on the guide rail.

Technical Field

The invention relates to the technical field of elevator assembly, in particular to an inverted installation method of an elevator shaft frame in a narrow shaft.

Background

Along with the high-speed development of electronic information industry, the automation and intelligence degree of manufacturing factories of intelligent electronic products such as mobile phones and the like is higher and higher, even unmanned factories appear, production materials are automated from links such as requesting, getting goods, distributing and storing, and the reciprocating intelligent material hoister is indispensable as an important tool for vertically carrying materials among all floors of a factory building in the links. The reciprocating intelligent material hoister comprises a main body frame, a guide rail, a car hall door, a tractor, safety accessories and the like. A main body frame of a hoist is arranged in a narrow and small hoistway without supporting points, and the problems of slow installation and low efficiency exist by adopting a traditional assembly method.

Disclosure of Invention

In order to overcome the defects in the prior art, an elevator shaft frame inverted installation method in a narrow shaft is provided so as to solve the problems of slow installation and low efficiency of a main body frame of a hoisting machine in a narrow shaft without supporting points by adopting a traditional assembly method.

In order to achieve the purpose, an elevator shaft frame inverted installation method in a narrow shaft is provided, a, the elevator shaft frame is divided into a bottom frame unit, a top frame unit and a plurality of sections of middle frame units, and the height of the bottom frame unit is matched with the height of a pit of an elevator shaft;

b. transferring the bottom frame unit into the pit via a door opening of the elevator hoistway and installing in the pit;

c. transferring the top frame unit to an upper portion of the bottom frame unit via a door opening of the elevator hoistway;

d. lifting the top frame unit such that a gap is formed between the top frame unit and the bottom frame unit, the gap having a height greater than a height of the middle frame unit;

e. transferring a middle frame unit into the gap and mounting to the bottom of the top frame unit to form an upper frame;

f. repeating the steps d and e, and sequentially installing the rest middle frame units at the bottom of the upper frame;

g. after all the middle frame units are sequentially mounted to the bottom of the upper frame, the middle frame unit of the bottom of the upper frame is mounted to the upper portion of the bottom frame unit to form an elevator shaft frame.

Further, before the step b is carried out, a supporting frame is erected on a roof and a through hole communicated with the elevator shaft is formed in the roof;

installing a lifting device on the supporting frame, and enabling a traction cable of the lifting device to penetrate through the through hole and extend into the elevator shaft;

connecting the traction ropes extending into the elevator hoistway to the top frame unit.

Furthermore, the supporting frame is a portal frame.

Further, the step of transferring the bottom frame unit into the pit via a door opening of the elevator hoistway includes:

laying a plurality of rolling shafts on the floor slab of the door opening, wherein the plurality of rolling shafts are arranged along the axial direction of the door opening;

placing the bottom frame unit on a plurality of rollers and connecting the traction cable to the bottom frame unit;

pushing the bottom frame unit through the door opening to the interior of the elevator hoistway while the hoist retracts the traction rope to hoist the bottom frame unit;

lowering the traction cable by the lifting device so that the bottom frame unit is accommodated in the pit;

installing the bottom frame unit in the pit.

Further, after the bottom frame unit is installed in the pit, a bearing plate is laid on the upper portion of the bottom frame unit, so that the bearing plate is flush with the floor slab.

Further, the method also comprises the following steps:

installing guide rails on a hoistway frame after forming the hoistway frame in the hoistway;

and a car is arranged on the guide rail.

The method has the advantages that the method is suitable for assembling the reciprocating type intelligent material hoist assembly type frame, the elevator shaft frame is divided into sections, the elevator shaft frame is processed and installed in a processing plant outside the elevator shaft, the bottom frame unit is installed in the elevator shaft, and the bottom frame unit and the floor slab form a platform, so that on one hand, a quick conveying channel is provided for transferring the subsequent frame units, and on the other hand, the problems of narrow shaft, no supporting point, high elevator shaft height, tight construction period and high operation safety coefficient are effectively solved by adopting reverse-order installation for the rest frame units.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 to 5 are schematic diagrams illustrating steps of a method for inverting an elevator shaft frame in a narrow shaft according to an embodiment of the present invention.

Fig. 6 and 7 are schematic views illustrating the installation of the bottom frame unit according to the embodiment of the present invention.

Fig. 8 is a schematic structural view of an elevator according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of the door opening side of the elevator shaft of the embodiment of the invention.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 9, the present invention provides a method for inversely installing an elevator shaft frame in a narrow shaft, including the steps of:

a. the elevator shaft frame 1 is divided into a bottom frame element 31, a top frame element 33 and a multi-sectional middle frame element 32, the height of the bottom frame element 31 being adapted to the height of the pit 100 of the elevator shaft 1.

Referring to fig. 8, in the embodiment, the material hoisting machine (or elevator) includes a shaft frame, a rail, a car, a counterweight, a dragging mechanism, and the like. Wherein the elevator hoistway frame includes a plurality of sections of frame units. The multi-section frame units are vertically overlapped to form an elevator shaft frame.

In the present embodiment, the multi-sectional frame unit of the elevator shaft frame is divided into a bottom frame unit 31, a top frame unit 33, and a multi-sectional middle frame unit 32 due to a narrow elevator shaft space.

According to different floor heights and different functional positions of a Building structure where a material hoist (or elevator) is located, an elevator shaft frame is divided into a bottom frame unit, a multi-section middle frame unit, a top frame unit and the like through a Building Information Modeling (BIM) technology, wherein the bottom frame unit, the multi-section middle frame unit and the top frame unit are installed in a pit of an elevator shaft. Wherein, the heights of each layer are different, and the heights of the multi-section middle frame units are also different. And (4) performing welding prefabrication on the elevator shaft frame according to a BIM deepening drawing.

Referring to fig. 1, before installing an elevator shaft frame in an elevator shaft, step a further includes:

a1 supporting frame 5 is installed on roof 4 and the roof 4 is perforated to connect with elevator shaft 1. The supporting frame 5 is a portal frame.

a2 mounting the hoist 6 on the support frame 5, the traction ropes 61 of the hoist 6 are inserted through the through holes and extended into the elevator shaft.

The lifting device 6 is a hand-operated hoist with the rated lifting capacity of 5T and the rated lifting height of 25 m. The traction rope is a chain of a manual hoist.

The supporting frame is a portal frame made of square tubes through welding, the portal frame is fixed on a floor slab of a roof through explosion screws, and the hand-operated block is installed on the portal frame.

A through hole (200mm round hole) is formed in a roof right above an elevator shaft, a 5T steel chain and 2 3T hanging belts of a hand-operated hoist are placed in the elevator shaft from the upper side of the through hole, and an elevator shaft frame is hoisted.

b. The bottom frame unit 31 is transferred into the pit 100 via the door opening 10 of the elevator hoistway 1 and installed in the pit 100.

Specifically, the step b comprises the following steps:

b1, see fig. 6 and 7, a plurality of rollers are laid on the floor slab 2 of the door opening 10, and the plurality of rollers are arranged along the axial direction of the door opening 10.

b2, resting the bottom frame element 31 on a plurality of rollers, and attaching the pull cable 61 to the bottom frame element 31.

b3, the bottom frame element 31 is pushed into the interior of the elevator hoistway via the door opening 10, while the hoisting device 6 retracts the traction cable 61 to hoist the bottom frame element 31.

b4, the hoist 6 lowers the tow cable 61 so that the bottom frame unit 31 is received in the pit 100.

b5, fixedly mounting the bottom frame element 31 in the pit 100.

b6, laying bearing plate on the upper part of the bottom frame unit 31 to make the bearing plate level with the floor slab 2. In this embodiment, the loading board on the bottom frame element is flush with the floor 2 of the first floor, so that the floor 2 of the first floor and the elevator shaft form a platform, and the top frame element and the middle frame element can be directly conveyed to the loading board through the floor 2.

c. The top frame element 33 is transferred to the upper part of the bottom frame element 31 via the door opening 10 of the elevator hoistway 1.

The top frame element 33 is transported to the floor and the traction ropes 61 extending into the elevator shaft are connected to the top frame element 33.

On the one hand the hoisting device is activated, pulling the top frame element obliquely upwards by means of the hoisting ropes, and on the other hand pushing the top frame element towards the elevator shaft, and thereby transferring the top frame element 33 via the door opening 10 of the elevator shaft 1 to the upper part of the bottom frame element 31, so that the top frame element temporarily rests on the bottom frame element.

d. The top frame element 33 is lifted such that a gap is formed between the top frame element 33 and the bottom frame element 31, the gap having a height greater than the height of the middle frame element 32.

Referring to fig. 2, after the top frame unit rests on the bottom frame unit, the top frame unit 33 continues to be lifted such that a gap is formed between the top frame unit 33 and the bottom frame unit 31, the height of the gap being greater than the height of the middle frame unit 32.

e. A middle frame unit 32 is transferred into the gap and mounted to the bottom of the top frame unit 33 to form an upper frame.

After the gap is formed between the top frame unit 33 and the bottom frame unit 31, as shown in fig. 2, a middle frame unit 32 is transferred into the gap and mounted on the bottom of the top frame unit 33 to form an upper frame.

f. As shown in FIG. 4, steps d and e are repeated, and the remaining multi-linked middle frame units 32 are sequentially mounted to the bottom of the upper frame.

g. As shown in fig. 5, after all the middle frame units 32 are sequentially mounted to the bottom of the upper frame, the middle frame unit 32 of the bottom of the upper frame is mounted to the upper portion of the bottom frame unit 31 to form the hoistway frame 1.

And sequentially hoisting all the frame units according to the method, placing the frame units in the elevator shaft, and sequentially fixing the frame units hoisted in the elevator shaft according to the vertical line.

h. After forming the shaft frame 1 in the elevator shaft, guide rails are installed to the shaft frame 1.

h1, fixing the guide rail joint plate and one end of the guide rail connecting plate on one guide rail in advance, and hanging all the guide rail pressing plates on screw holes of the guide rail bracket in advance by screws.

h2, erecting the guide rails one by one from the pit upwards by adopting a hand hoist; when one guide rail is erected, the guide rail pressure guide plate and the guide rail joint connecting plate are slightly screwed; one guide rail at the lowest end is provided with a guide rail seat and is directly supported on the ground of the pit.

h3, after the guide rail is erected, correcting the guide rail according to the plumb line of the guide rail and the vertical standard requirement of the guide rail.

h4, after the guide rail is corrected, the screw on the guide rail joint connecting plate and the guide pressing plate screw are screwed tightly.

i. A car is mounted on the guide rail.

i1, hoisting the upper cross beam of the car by using a hand-operated hoist lifting hook, connecting the upper cross beam with the straight beams on two sides and slightly locking the upper cross beam, assembling the disassembled upper guide shoe, correcting the verticality of the straight beams, assembling the lower cross beam with the upright post, correcting the car frame by using an angle square, and fastening all bolts.

i2, putting the car bottom into the car frame, and fixing the car pull rod, the car bottom and the lower cross beam by screws; the pull ruler measures the size between the left side and the right side of the front end of the car and the upright post, and 4 fixing screws at the bottom of the car are screwed up after the size is consistent; leveling the car bottom by using an angle square, a level ruler and a car pull rod.

The method for inversely installing the elevator shaft frame in the narrow shaft greatly improves the construction speed, ensures the welding quality of engineering, reduces the potential safety hazard of construction and reduces the construction cost. And reliable reference experience is provided for similar projects in the future.

The invention discloses an inverted installation method of an elevator shaft frame in a narrow shaft, which is suitable for assembling an assembled frame of a reciprocating intelligent material hoist.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.