WO2021042428A1

WO2021042428A1 - Hoistway type traction elevator for building construction

Info

Publication number: WO2021042428A1
Application number: PCT/CN2019/108193
Authority: WO
Inventors: 张夏
Original assignee: 歌拉瑞电梯股份有限公司
Priority date: 2019-09-02
Filing date: 2019-09-26
Publication date: 2021-03-11
Also published as: CN210214486U

Abstract

A hoistway type traction elevator (100a, 100b, 100c) for building construction, comprising a traction machine (1), a top beam (2), a traction medium (3), a guide wheel (4), a cage (5), and a counterweight (6). The top beam (2) is fixed at the upper end of a building hoistway (7); the traction machine (1) is fixed on the top beam (2); one end of the traction medium (3) is led out from the traction machine (1) and then guided to the cage (5) below the traction machine (1), and is connected to the cage (5) by fixing at the middle; the other end of the traction medium (3) is led out from the traction machine (1) and then guided to the counterweight (6) below the traction machine (1), and is connected to the counterweight (6); the traction medium (3) is a steel wire rope or a steel belt; the top beam (2) can perform vertical movement. The elevator (100a, 100b, 100c) can be arranged in the elevator hoistway (7) of the building, and has a high vertical movement speed, low noise, and high safety.

Description

Shaft type traction elevator for building construction

Technical field

The invention relates to the field of building construction elevators, in particular to a hoistway type traction elevator for building construction.

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 hoistway type traction elevator for construction.

According to one aspect of the present invention, there is provided a hoistway type traction elevator for building construction, including a traction machine, a sky beam, a traction medium, a hanging 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;

One end of the traction medium is led from the traction machine to the hoisting cage located under the traction machine, and is connected to the hoisting cage;

The other end of the traction medium is led from the traction machine to the counterweight below the traction machine, 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: this embodiment is designed in a building hoistway and has high safety. It adopts a traction machine to drive a wire rope or a steel belt to suspend the cage to lift, which has the advantages of fast lifting speed and low noise; 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 sky beam can move up and down, and the installation height of the sky beam is increased with the height of the floor, thereby increasing the maximum lifting height of the elevator; The traction medium is steel wire rope or 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.

In some embodiments, the traction medium is connected to the 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, 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 beneficial effect of this embodiment is that the guide wheel adjusts the distance between the two sections of traction medium drawn from the traction machine, so that there is sufficient distance between the two ends of the traction medium for the hoisting cage and counterweight to move up and down freely, preventing the hoisting cage Interference with counterweight.

In some embodiments, a pressure wheel is provided between the traction machine and the guide wheel, and the pressure wheel presses the traction medium to the traction machine to increase the contact area between the traction machine and the traction medium. The beneficial effect of this embodiment is that the pressure wheel applies a force biasing the direction of the traction machine to the traction medium, so that the contact area between the traction medium and the traction machine is increased, thereby increasing the traction force and friction.

In some embodiments, the guide wheels are arranged below the hoisting machine and are biased toward the hoisting cage. The beneficial effect of this embodiment is that the guide wheels push the traction medium connected to the cage away from the traction medium connected to the counterweight, so that there is a sufficient distance between the two ends of the traction medium for the cage and the counterweight to move up and down freely. Prevent the cage and counterweight from interfering.

In some embodiments, the guide wheel is arranged below the traction machine and is biased toward the side of the counterweight. The beneficial effect of this embodiment is that the guide wheels push the traction medium connected to the counterweight away from the traction medium connected to the cage, so that there is a sufficient distance between the two ends of the traction medium for the cage and the counterweight to move up and down freely. Prevent the cage and counterweight from interfering.

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.

In some embodiments, a boom is pivotally connected to the large mouth end of the wedge, the boom passes through the top or top part of the cage, and an elastic part is sleeved on the boom, and the elastic part is located on the top or top of the cage Below the component, two ends of the elastic component are respectively provided with an elastic component seat, the free end of the boom is provided with at least one limiting nut, and the elastic component is a spring or a rubber ring. The beneficial effect of this embodiment is that the large mouth end of the wedge sleeve is connected to the hanging cage through the suspension rod, and the elastic component plays a role of buffering.

In some embodiments, a cushion is provided between the top or top part of the hanging cage and the elastic part seat at the upper end. The beneficial effect of this embodiment is that the cushion pad can reduce the wear of the elastic component seat.

In some embodiments, the free end of the boom is provided with a cotter pin, and the cotter pin is located below the limit nut. The beneficial effect of this embodiment is that the cotter pin restricts the limit nut from falling off the boom after long-term use.

In some embodiments, the traction medium drawn from the small mouth end of the wedge sleeve passes through the rope clamp. The rope clamp includes two oppositely arranged splints, the two splints are detachably connected, and the sides of the splints have ribs. The beneficial effect of this embodiment is that the rope clamp restrains the two strands of traction medium protruding from the small mouth end, and prevents the two strands of traction medium from dispersing.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of a hoistway type traction elevator for building construction according to the first embodiment of the present disclosure.

Fig. 2 is a schematic diagram of the structure of the connector of the specific embodiment of the disclosure.

Fig. 3 is a schematic diagram of the connection structure between the connector and the hanging cage described in Fig. 2.

Fig. 4 is a schematic diagram of the rope clamp viewed from the direction AA′ in Fig. 3.

Fig. 5 is a schematic diagram of the structure of a hoistway type traction elevator for building construction according to a second embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a hoistway type traction elevator for building construction according to a third embodiment of the present disclosure.

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, a hoistway type traction elevator for construction construction is provided. Fig. 1 schematically shows a structural diagram of an elevator 100a according to the first embodiment of the present disclosure.

Please refer to Figure 1, the elevator 100a includes a traction machine 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 machine 1 is fixed on the sky beam 2;

One end of the traction medium 3 is led from the traction machine 1 to the hoisting cage 5 below the hoisting machine 1, and is connected to the hoisting cage 5;

The other end of the traction medium 3 is led from the traction machine 1 to the counterweight 6 below the traction machine 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 100a 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 lifting height of the elevator 100a. This embodiment adopts the traction machine 1 to drive the steel wire rope or steel belt suspension cage 5 to lift. Compared with the lifting method of the gear rack, 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 elevator 100a of this embodiment adopts the top-mounted structure of the traction machine 1, which has the advantage of saving traction media. The two sections of traction medium 3 drawn by the traction machine 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.

Optionally, a guide wheel 4 is provided between the two sections of traction medium 3 drawn from the traction machine 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 two sections of traction medium 3 The distance between medium 3. When the diameter of the traction wheel of the traction machine 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 machine 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 machine 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, the guide wheels 4 of the elevator 100a are arranged below the traction machine 1 and are biased toward the hanging cage 5 side. The guide wheel 4 of this embodiment appropriately deviates the traction medium 3 leading to the cage 5 from the traction medium 3 leading to the counterweight 6 to increase the distance between the two sections of the traction medium 3.

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. 2 is a schematic structural diagram of the connecting member 30 according to a specific embodiment of the disclosure. FIG. 3 is a schematic diagram of the connection structure between the connecting member 30 and the hanging cage 5 shown in FIG. 2. 2 and 3, the connector 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 block 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 circumferential 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. 4 is a schematic diagram of the rope clamp viewed from the direction AA′ in Fig. 3. Please refer to FIG. 4, 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.

Fig. 5 schematically shows a structural diagram of a lifter 100b according to the second embodiment of the present disclosure. Please refer to FIG. 5, the difference from the elevator 100a is that a pressure roller 8 is provided between the traction machine 1 and the guide wheel 4 of the elevator 100b, and the pressure roller 8 presses the traction medium 3 toward the traction machine 1 to increase the traction The contact area between the machine 1 and the traction medium 3. The pressure wheel 8 is arranged between the traction machine 1 and the guide wheel 4, and the traction medium 3 drawn from the traction machine 1 is tangent to the pressure wheel 8 and then to the guide wheel 4. The pressure roller 8 applies a force biasing the traction machine 1 to the traction medium 3, so that the contact area between the traction medium 3 and the traction machine 1 is increased, thereby increasing the traction force and friction.

Fig. 6 schematically shows a structural diagram of a lifter 100c according to the third embodiment of the present disclosure. Please refer to FIG. 6, the difference from the elevator 100 a is that the guide wheel 4 of the elevator 100 c is arranged below the traction machine 1 and is biased to the side of the counterweight 6. The guide wheel 4 of this embodiment appropriately deviates the traction medium 3 leading to the counterweight 6 from the traction medium 3 leading to the cage 5 to increase the distance between the two sections of the traction medium 3.

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 hoistway type traction elevator for construction, which is characterized by comprising a traction machine (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 machine (1) is fixed on the sky beam (2);

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

The other end of the traction medium (3) is drawn from the traction machine (1) to the counterweight (6) located below the traction machine (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 hoistway type traction elevator for construction use according to claim 1, characterized in that the traction medium (3) is connected to the hanging cage (5) in a fixed manner in the middle.
The hoistway type traction elevator for construction use according to claim 1, wherein a guide wheel (4) is provided between the two sections of traction medium (3) drawn from the traction machine (1) 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).
The hoistway type traction elevator for construction use according to claim 3, characterized in that a pressure roller (8) is provided between the traction machine (1) and the guide wheel (4), and the pressure wheel (8) The traction medium (3) is pressed against the traction machine (1) to increase the contact area between the traction machine (1) and the traction medium (3).
The hoistway type traction elevator for construction use according to claim 3, characterized in that the guide wheel (4) is arranged below the traction machine (1) and is biased toward the hoisting cage (5). ) That side.
The hoistway traction elevator for construction use according to claim 3, wherein the guide wheel (4) is arranged below the traction machine (1) and is biased toward the counterweight (6). ) That side.
The hoistway type traction elevator for construction use according to claim 2, wherein the traction medium (3) is connected to the hanging cage (5) through a connecting piece (30), and the connecting piece (30) It includes a wedge (12) and a wedge (13). The wedge (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 block (13) has a big head end (15) and a small head end (16) opposite to the big head end (15), and the outer peripheral surface of the wedge block (13) has a groove (17), so 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 (19) of the internal cavity (14) faces 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 (17) on the outer peripheral surface of the wedge (13) Wherein, the large mouth end (18) of the wedge sleeve (12) is connected to the hanging cage (5), the force formed by the traction medium (3) on the wedge (13) and the hanging 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.
The hoistway type traction elevator for building construction according to claim 7, characterized in that a boom (20) is pivotally connected to the large mouth end (18) of the wedge sleeve (12), and the boom (20) Passing through the top or top part of the hanging cage (5), an elastic member (21) is sleeved on the hanging rod (20), and the elastic member (21) is located in the hanging cage (5) At the top or under the top part, the elastic part (21) is provided with an elastic part seat (22) at both ends, and the free end of the boom (20) is provided with at least one limit nut (23), the The elastic component (21) is a spring or a rubber ring.
The hoistway type traction elevator for construction use according to claim 7, wherein the free end of the boom (20) is provided with a cotter pin (25), and the cotter pin (25) is located on the limit nut (23). ) Below.
The hoistway type traction elevator for construction use according to claim 7, characterized in that the traction medium (3) drawn from the small end (19) of the wedge sleeve (12) passes through the rope clamp (26) ), the rope clamp (26) includes two splints (27) arranged oppositely, the two splints (27) are detachably connected, and the sides of the splints (27) are provided with ribs (28).