WO2021042429A1

WO2021042429A1 - Compound wound construction hoist suitable for building hoistway

Info

Publication number: WO2021042429A1
Application number: PCT/CN2019/108194
Authority: WO
Inventors: 张夏
Original assignee: 歌拉瑞电梯股份有限公司
Priority date: 2019-09-05
Filing date: 2019-09-26
Publication date: 2021-03-11
Also published as: CN210214482U

Abstract

A compound wound construction hoist suitable for a building hoistway (7), comprising a traction system (1), a roof beam (2), a traction medium (3), a guide wheel (4), a cage (5), and a counterweight (6). The roof beam (2) is fixed at an upper end of a building hoistway (7); the traction system (1) is fixed on the roof beam (2); the traction medium (3) is rewound on the traction system (1); one end of the traction medium (3) is led out from the traction system (1), then led to the cage (5) located below the traction system (1), and connected to the cage (5) in a mode of fixing at the middle, and the other end of the traction medium (3) is led out from the traction system (1), then led to the counterweight (6) located below the traction system (1), and connected to the counterweight (6); the traction medium (3) is a steel wire rope or a steel belt; the roof beam (2) can move up and down. By means of the configuration, the elevator has advantages of being large in traction force, rapid in height adjustment, low in noise, capable of being arranged in an elevator hoistway of a building, and high in safety.

Description

A rewinding construction elevator suitable for building shafts

Technical field

The invention relates to the field of building construction elevators, in particular to a rewinding construction elevator suitable for building shafts.

Background technique

Construction elevators are also called construction elevators. Conventional construction elevators use gear and rack meshing methods to make the cage move up and down, and are installed on the outer wall of high-rise buildings to transport construction personnel, tools, equipment and materials. Construction machinery. The disadvantages of rack-and-pinion elevators are low lifting efficiency, high noise, and low safety.

Summary of the invention

In order to solve one or more of the above-mentioned problems, the present invention provides a rewinding construction hoist suitable for building hoistways.

According to one aspect of the present invention, there is provided a rewinding construction hoist suitable for building shafts, including a traction machine, a sky beam, a traction medium, a cage and a counterweight;

The sky beam is fixed on the upper end of the building hoistway, and the traction machine is fixed on the sky beam;

The traction medium rewinds to the traction system;

One end of the traction medium is led from the traction system to the cage below the traction system, and is connected to the cage;

The other end of the traction medium is led from the traction system to the counterweight below the traction system, and is connected to the counterweight;

The traction medium is steel wire rope or steel belt, and the sky beam can move up and down.

The beneficial effects of this embodiment are: the elevator of this embodiment can be installed in the shaft of a building with high safety; the traction system is used to drive the wire rope or steel belt suspension cage to lift, which has the advantages of fast lifting speed and low noise; The rewinding method of the traction medium has greater traction; the traction ratio is 1:1, and the elevator has the advantage of fast lifting speed; the sky beam can move up and down, and the installation height of the sky beam is increased with the height of the floor. In turn, the maximum liftable height of the lift is increased.

In some embodiments, the traction system is a single traction machine, and the traction medium is wound around the outer circumference of the traction wheel of the traction machine.

In some embodiments, the number of turns of the traction medium on the outer circumference of the traction wheel of the traction machine is not less than one.

In some embodiments, the traction system includes a traction machine and a rewinding wheel. The traction wheel and the rewinding wheel of the traction machine form a wheel set, and the traction medium is wound around the outer circumference of the wheel set.

In some embodiments, the number of turns of the traction medium on the outer circumference of the wheel set is not less than one.

In some embodiments, a guide wheel is provided between the two sections of traction medium drawn from the traction machine, and the guide wheel pushes one section of the traction medium away from the other section of the traction medium to adjust the distance between the two sections of traction medium. the distance. The guide wheel adjusts the distance between the two sections of traction medium drawn from the traction machine, so that there is enough distance between the two ends of the traction medium for the hoisting cage and the counterweight to move up and down freely, preventing the interference of the hoisting cage and the counterweight.

In some embodiments, a guide wheel is provided between the two sections of traction medium drawn from the traction system, and the guide wheel pushes one section of the traction medium away from the other section of the traction medium to adjust the distance between the two sections of traction medium. the distance.

In some embodiments, the guide wheel is arranged below the traction system, and a section of the traction medium drawn from the traction system does not cross another section of the traction medium drawn from the traction system, and one section of the traction medium bypasses the guide. wheel.

In some embodiments, the traction medium is connected to the hoisting cage in a fixed manner in the middle. The beneficial effect of this embodiment is that a sufficient length of the traction medium is reserved at one end of the traction medium. For example, the reserved traction medium can be coiled and placed on the top of the hanging cage. Raise a floor and release a certain length of the reserved traction medium accordingly to extend the working length of the traction medium. There is no need to replace a new traction medium, and there is no need to adopt a continuous wiring extension method.

In some embodiments, the traction medium is connected to the hoisting cage through a connecting piece. The connecting piece includes a wedge sleeve and a wedge block. The wedge sleeve has an inner cavity with two ends open. One port of the inner cavity is large and the other port is small. The block has a big head end and a small head end opposite to the big head end. The outer peripheral surface of the wedge has a groove. The small head end of the wedge is inserted into the cavity from the big mouth end of the inner cavity, and the small mouth end of the inner cavity is set upward to draw The middle of the medium is folded in half and inserted into the cavity from the small end. The half-folded part is sleeved in the groove on the outer circumference of the wedge. The large end of the wedge is connected to the cage. The force formed by the traction medium on the wedge and the cage on the wedge are formed The opposing force makes the wedge, the wedge and the traction medium lock each other. The beneficial effect of this embodiment is that the connector of this embodiment has the advantage that it can be connected from any position in the middle of the traction medium without cutting the rope, and the connection position of the connector on the traction medium can be adjusted at will according to needs. , Realize the working length of releasing the traction medium; Second, it has the characteristics of self-locking; Third, the connection is fast.

Description of the drawings

FIG. 1 is a schematic structural diagram of a winding construction hoist suitable for a building hoistway installed in a building hoistway according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of another embodiment of the disclosure, which is suitable for a winding construction hoist for a building hoistway, installed in a building hoistway.

FIG. 3 is a schematic diagram of another embodiment of the disclosure, which is a structure diagram of a winding construction hoist suitable for a building hoistway installed in a building hoistway.

Fig. 4 is a schematic diagram of the rewinding structure of the embodiment shown in Figs. 1 and 2.

FIG. 5 is a schematic diagram of the rewinding structure of the embodiment shown in FIG. 3.

Fig. 6 is a schematic diagram of the structure of the connector of the specific embodiment of the disclosure.

Fig. 7 is a schematic diagram of the connection structure between the connecting member and the hanging cage described in Fig. 6.

FIG. 8 is a schematic diagram of the rope clamp viewed from the direction AA′ in FIG. 7.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" "Respectively refers to the direction toward or away from the geometric center of a particular component.

According to one aspect of the present disclosure, there is provided a rewinding construction elevator suitable for building hoistways. Figures 1-3 schematically show the structure diagrams of the elevators of the three embodiments of the present disclosure installed in the building hoistway 7.

Please refer to Figure 1-3, the elevator includes the traction system 1, the sky beam 2, the traction medium 3, the cage 5 and the counterweight 6;

The sky beam 2 is fixed on the upper end of the building hoistway 7, and the traction system 1 is fixed on the sky beam 2;

The traction medium 3 rewinds to the traction system 1;

One end of the traction medium 3 is led from the traction system 1 to the hanging cage 5 located below the traction system 1, and is connected to the hanging cage 5;

The other end of the traction medium 3 is led from the traction system 1 to the counterweight 6 below the traction system 1, and is connected to the counterweight 6;

The traction medium 3 is a steel wire rope or a steel belt, and the sky beam 2 can move up and down.

The elevator of this embodiment is installed in a built-in building hoistway 7, such as an elevator hoistway. The sky beam 2 is horizontally arranged on the top of the hoistway, and both ends of the sky beam 2 can be fixed on the wall of the building hoistway 7. Whenever the construction of a certain floor is completed, the installation position of the sky beam 2 is raised by one floor, and the working length of the traction medium 3 is extended to increase the maximum liftable height of the elevator. This embodiment adopts the traction system 1 to drive the wire rope or steel belt suspension cage 5 up and down. Compared with the rack and pinion lifting method, it has the advantages of fast lifting speed and low noise. In order to keep the hanging cage 5 stable, a guide rail is provided on the wall of the building hoistway 7 and the hanging cage 5 is slidingly matched with the guide rail to prevent the hanging cage 5 from shaking. The traction medium 3 and the traction system 1 of the elevator of this embodiment adopt a rewinding method, that is, the traction medium 3 is wound on the traction system 1 not less than one circle, which can increase the traction medium 3 and the traction system 1. The friction between the system 1 in turn increases the traction force. The elevator of this embodiment adopts the top-mounted structure of the traction system 1, which has the advantage of saving traction media. The two sections of traction medium 3 drawn by the traction system 1 are directly connected with the cage 5 and the counterweight 6, and the traction ratio is 1:1. When the traction machine rotates at the same speed, the elevator has the advantage of fast lifting speed. The traction medium 3 is a steel wire rope or a steel belt. Steel wire rope is relatively more convenient to manufacture, but the steel belt also has a flat design to increase the contact area and increase the traction friction; at the same time, the steel belt does not require additional lubrication, no oil pollution, lower vibration amplitude than steel wire rope, more stable and comfortable, and economical Electric energy and long service life have their own advantages.

Figures 1 and 2 respectively schematically show an embodiment in which the traction system 1 is a single traction machine. Fig. 4 schematically shows the rewinding method of the embodiment shown in Figs. 1 and 2. Optionally, referring to FIGS. 1, 2 and 4, the traction system 1 is a single traction machine, and the traction medium 3 is wound around the outer circumference of the traction wheel of the traction machine. Optionally, the number of turns of the traction medium 3 on the outer circumference of the traction wheel of the traction machine is not less than one. This embodiment adopts the form of rewinding of the traction sheave, in which the traction sheave of the traction machine is provided with spiral grooves on the outer circumference, and the traction medium 3 is wound in the spiral groove on the outer circumference of the traction sheave. The traction medium 3 rewinds on the outer peripheral surface of the traction wheel at least once, which can increase the friction between the traction wheel and the traction medium 3, thereby increasing the traction force. It should be noted that Fig. 4 only schematically shows one traction medium 3. In actual use, in order to make the elevator have sufficient load-bearing capacity, multiple traction mediums 3 side by side are often used.

Optionally, referring to Figures 1 and 2, a guide wheel 4 is provided between the two sections of traction medium 3 drawn from the traction system 1, and the guide wheel 4 pushes one section of the traction medium 3 away from the other section of the traction medium 3. To adjust the distance between the two sections of traction medium 3. When the diameter of the traction wheel of the traction system 1 is less than half of the width of the cage 5, the distance between the two ends of the traction medium 3 drawn from the traction system 1 is small, which will cause the cage 5 and the counterweight 6 to interfere with each other . The guide wheel 4 adjusts the distance between the two sections of traction medium 3 drawn from the traction system 1, so that there is enough distance between the two ends of the traction medium 3 for the hoisting cage 5 and the counterweight 6 to move up and down freely, preventing the hoisting cage 5 Interference with counterweight 6.

Optionally, referring to FIG. 1, the guide wheel 4 of the elevator is arranged below the traction system 1. A section of the traction medium 3 drawn from the traction system 1 is different from another section of the traction medium 3 drawn from the traction system 1 Cross, one section of the traction medium 3 bypasses the guide wheel 4. In some embodiments, a section of the traction medium 3 drawn from the traction system 1 sags vertically and is guided to the cage 5, and another section of the traction medium 3 drawn from the traction system 1 bypasses the guide wheel 4 and is guided to the cage 5. Counterweight 6. In some embodiments, a section of the traction medium 3 drawn from the traction system 1 sags vertically and is guided to the counterweight 6, and another section of the traction medium 3 drawn from the traction system 1 bypasses the guide wheel 4 and is guided toward the counterweight 6. Hanging cage 5.

Optionally, referring to FIG. 2, the guide wheel 4 is arranged below the traction system 1, and a section of the traction medium 3 drawn from the traction system 1 crosses another section of the traction medium 3 drawn from the traction system 1, where A section of the traction medium 3 bypasses the guide wheel 4. In some embodiments, a section of the traction medium 3 drawn from the traction system 1 sags vertically and is guided to the cage 5, and after another section of the traction medium 3 drawn from the traction system 1 crosses it, it bypasses the guide After round 4, lead to counterweight 6. In some embodiments, a section of the traction medium 3 drawn from the traction system 1 sags vertically and is guided to the counterweight 6, and another section of the traction medium 3 drawn from the traction system 1 bypasses the guide wheel 4 and is guided toward the counterweight 6. Hanging cage 5. This embodiment can further increase the contact area between the traction medium 3 and the traction system 1, thereby increasing the friction force and the traction force.

FIG. 3 schematically shows an embodiment in which the traction system 1 includes a rewinding wheel 102. Fig. 5 schematically shows the rewinding schematic diagram of Fig. 3. 3 and 5, optionally, the traction system 1 includes a traction machine 101 and a rewinding wheel 102, the traction wheel of the traction machine 101 and the rewinding wheel 102 form a wheel set, and the traction medium 3 rewinds On the outer circumference of the wheel. Optionally, the number of windings of the traction medium 3 on the outer circumference of the wheel set is not less than one. In this embodiment, a rewinding wheel is used for rewinding, and both the traction sheave of the traction machine 101 and the outer peripheral surface of the rewinding wheel 102 are provided with spiral grooves. The traction medium 3 wound from the traction wheel of the traction machine 1 is circulated back to the traction wheel of the traction machine 101 via the rewinding wheel 102, so that the traction medium 3 is wound around the traction wheel and the rewinding wheel 102. The number of turns on the outer circumference of the wheel set is not less than one, which can increase the friction between the traction medium 3 and the wheel set, thereby increasing the traction force. It should be noted that FIG. 5 only schematically shows one traction medium 3. In actual use, in order to make the elevator have sufficient load-bearing capacity, multiple traction mediums 3 in parallel are often used.

Optionally, the free end of the traction medium 3 is directly connected to the hanging cage 5, for example, connected by a traditional wire rope clamp. When the construction of a certain floor is completed and a higher floor needs to be constructed, the installation position of the sky beam 2 is moved up, and a longer traction medium 3 is replaced to increase the maximum lifting height of the cage 5.

Optionally, the traction medium 3 is connected to the hanging cage 5 in a fixed manner in the middle. In this embodiment, the traction medium 3 is connected to the cage 5 in a fixed manner in the middle, that is, a sufficient length of the traction medium 3 is reserved at one end of the traction medium 3. For example, the reserved traction medium 3 can be coiled and placed behind. At the top of the cage 5. According to the increase of the floor height, the sky beam 2 is raised to a certain height, and a certain length of the reserved traction medium 3 is released correspondingly to extend the working length of the traction medium 3 without changing the new traction medium 3 or Need to use the way of continuous wiring extension.

Optionally, the traction medium 3 is connected to the hanging cage 5 in a fixed manner in the middle through the connecting piece 30. FIG. 6 is a schematic structural diagram of the connecting member 30 according to a specific embodiment of the disclosure. FIG. 7 is a schematic diagram of the connection structure between the connecting member 30 and the hanging cage 5 shown in FIG. 6. 6 and 7, the connecting piece 30 includes a wedge sleeve 12 and a wedge block 13. The wedge sleeve 12 has an inner cavity 14 open at both ends. One port of the inner cavity 14 is large and the other port is small. The wedge 13 has a large end. The end 15 and the small head end 16 opposite to the big head end 15, the outer peripheral surface of the wedge 13 has a groove 17, and the small head end 16 of the wedge 13 is inserted into the inner cavity 14 from the large mouth end 18 of the inner cavity 14. The small end 19 is set upwards, the middle of the traction medium 3 is folded in half and inserted into the cavity 14 from the small end 19, the half-folded part is sleeved in the groove 17 on the outer peripheral surface of the wedge 13, and the large end 18 of the wedge sleeve 12 is connected to the cage 5. The force formed by the traction medium 3 on the wedge 13 and the reverse force formed by the cage 5 on the wedge sleeve 12 make the wedge sleeve 12, the wedge block 13, and the traction medium 3 lock each other.

The wedge sleeve 12 receives the gravity of the cage 5, and the wedge 13 receives the pulling force of the traction medium 3. The two directions are opposite, so the traction medium 3 around the outer circumference of the wedge 13 is squeezed into the inner wall of the cavity 14 and the wedge 13 And the heavier the cage 5 is, the tighter the traction medium 3 is squeezed. The cross-sectional size of the inner cavity 14 gradually decreases from the large mouth end 18 to the small mouth end 19, so that the inner cavity 14 has a wedge shape. The cross-sectional size of the wedge 13 gradually decreases from the big head end 15 to the small head end 16, so that the wedge 13 has a wedge shape. After the outer circumference of the wedge 13 is wound with a rope, its width is greater than the width of the small mouth end 19 of the inner cavity 14, so the wedge 13 and the traction medium 3 are limited by the wedge-shaped inner wall of the inner cavity 14 and will not fall out of the small mouth end 19. 12. The wedge 13 and the traction medium 3 are locked to each other. When the force exerted on the wedge sleeve 12 is removed, the wedge block 13 can be taken out of the wedge sleeve 12, and the traction medium 3 and the connecting member 30 can be disassembled. The advantage of the connecting piece 30 of this embodiment is that it can be connected from any position in the middle of the traction medium 3 without cutting the rope, and the connecting position of the connecting piece 30 on the traction medium 3 can be adjusted as needed to realize the release. The working length of the traction medium 3; second, it has self-locking characteristics; third, the connection is fast.

Optionally, a boom 20 is pivotally connected to the large mouth end 18 of the wedge sleeve 12, the boom 20 passes through the top or top part of the cage 5, and an elastic member 21 is sleeved on the boom 20, and the elastic member 21 is located on the suspension rod. At the top of the cage 5 or below the top part, two ends of the elastic part 21 are respectively provided with an elastic part seat 22, the free end of the boom 20 is provided with at least one limit nut 23, and the elastic part 21 is a spring or a rubber ring. The large mouth end 18 of the wedge sleeve 12 is connected to the hanging cage 5 through a suspension rod 20. The elastic member 21 serves as a buffer.

Optionally, a cushion 24 is provided between the top or top part of the hanging cage 5 and the elastic part seat 22 at the upper end. The cushion 24 can be made of rubber material, and its function is to reduce the wear of the spring component seat 22.

Optionally, the free end of the boom 20 is provided with a cotter pin 25, and the cotter pin 25 is located below the limit nut 23. The split pin 25 restricts the limit nut 23 from falling off the boom 20 after long-term use.

Optionally, the traction medium 3 drawn from the small mouth end 19 of the wedge sleeve 12 passes through the rope clamp 26. FIG. 8 is a schematic diagram of the rope clamp viewed from the direction AA′ in FIG. 7. Please refer to FIG. 8, the rope clamp 26 includes two splint plates 27 arranged opposite to each other. The two splint plates 27 are detachably connected, and the sides of the splint plate 27 have ribs 28. The ribs 28 of the two clamping plates 27 are relatively bent to confine the rope in the rope clamp 26. The two clamping plates 27 can be connected in a detachable manner such as bolts. The function of the rope clamp 26 is to restrain the two strands of the traction medium 3 protruding from the small mouth end 19 and prevent the two strands of the traction medium 3 from dispersing.

What has been described above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention.

Claims

A rewinding construction elevator suitable for building shafts, which is characterized by comprising a traction system (1), a sky beam (2), a traction medium (3), a cage (5) and a counterweight (6) ；

The sky beam (2) is fixed on the upper end of the building hoistway (7), and the traction system (1) is fixed on the sky beam (2);

The traction medium (3) rewinds the traction system (1);

One end of the traction medium (3) is led from the traction system (1) to the hanging cage (5) located below the traction system (1), and is connected to the hanging cage (5);

The other end of the traction medium (3) is led from the traction system (1) to the counterweight (6) located below the traction system (1), and is connected to the counterweight (6) connection;

The traction medium (3) is a steel wire rope or a steel belt, and the sky beam (2) can move up and down.
The rewinding construction hoist suitable for building hoistways according to claim 1, wherein the traction system (1) is a single traction machine, and the traction medium (3) is rewound on the The outer circumference of the traction wheel of the traction machine.
The rewind construction hoist suitable for building hoistways according to claim 2, characterized in that the number of turns of the traction medium (3) on the outer circumference of the traction wheel of the traction machine is not less than one ring.
The rewinding construction hoist suitable for building hoistways according to claim 1, wherein the traction system (1) includes a traction machine (101) and a rewinding wheel (102), and the traction system (1) includes a traction machine (101) and a rewinding wheel (102). The traction wheel of the machine (101) and the rewinding wheel (102) form a wheel set, and the traction medium (3) rewinds around the outer circumference of the wheel set.
The rewinding construction hoist suitable for building hoistways according to claim 4, characterized in that, the number of turns of the traction medium (3) on the outer circumference of the wheel set is not less than one.
A rewinding construction hoist suitable for building hoistways according to claim 1, wherein a guide wheel is provided between the two sections of traction medium (3) drawn from the traction system (1) (4) The guide wheel (4) pushes one section of the traction medium (3) away from the other section (3) to adjust the distance between the two sections of the traction medium (3).
A rewinding construction hoist suitable for building hoistways according to claim 6, characterized in that the guide wheels (4) are arranged below the traction system (1), and the guide wheels (4) are drawn from the traction system (1) One section of the traction medium (3) does not cross another section (3) drawn from the traction system (1), and one section of the traction medium (3) bypasses the guide wheel (4).
A rewinding construction hoist suitable for building hoistways according to claim 6, characterized in that the guide wheels (4) are arranged below the traction system (1), and the guide wheels (4) are drawn from the traction system (1) One section of the traction medium (3) crosses another section (3) drawn from the traction system (1), and one section of the traction medium (3) bypasses the guide wheel (4).
The rewinding construction hoist suitable for building hoistways according to any one of claims 1-8, characterized in that the traction medium (3) is connected to the hanging cage (5) in a fixed manner in the middle.
A rewinding construction hoist suitable for building hoistways according to claim 9, characterized in that the traction medium (3) is connected to the hanging cage (5) through a connecting piece (30), so The connecting piece (30) includes a wedge (12) and a wedge (13). The wedge (12) has an inner cavity (14) with two ends open, and one port of the inner cavity (14) is large, and the other A port is small, the wedge (13) has a big end (15) and a small end (16) opposite to the big end (15), and the outer peripheral surface of the wedge (13) has a groove (17) ), the small end (16) of the wedge (13) is inserted into the internal cavity (14) from the large end (18) of the internal cavity (14), and the small end (14) of the internal cavity (14) 19) Set up, the middle part of the traction medium (3) is folded in half and inserted into the inner cavity (14) from the small mouth end (19), and the folded part is sleeved in the groove on the outer circumferential surface of the wedge (13) In (17), the large end (18) of the wedge sleeve (12) is connected to the cage (5), and the force formed by the traction medium (3) on the wedge (13) and the cage (5) The reverse force formed on the wedge sleeve (12) causes the wedge sleeve (12), the wedge block (13) and the traction medium (3) to be locked to each other.