CN215479054U

CN215479054U - Large tractor machine room-free freight elevator suspension device

Info

Publication number: CN215479054U
Application number: CN202023245790.XU
Authority: CN
Inventors: 朱军; 孟俊杰; 孙龙柱; 李慧
Original assignee: HANGZHOU HOPMANN ELEVATOR CO LTD
Current assignee: HANGZHOU HOPMANN ELEVATOR CO LTD
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-01-11
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a large tractor machine room-free freight elevator suspension device, which comprises a tractor and the like, wherein one end of a steel wire rope is led out from the obliquely arranged tractor on the side of a lift car, guided by a guide wire wheel A at the bottom of the lift car, led to a guide wheel B at the bottom of the lift car, guided by a guide wheel C at the top layer at the same side, led to a guide wheel D at the top layer, guided downwards to a guide wheel E at the bottom of the lift car and guided to a bearing beam by a guide wheel F at the bottom of the lift car to be fixed; on the counterweight side, the steel wire rope at the other end of the traction machine extends downwards, is guided by a counterweight frame guide wheel B on the counterweight, extends upwards to a top layer counterweight guide wheel on the bearing beam, extends downwards to a counterweight frame guide wheel A on the counterweight, and finally guides upwards to a counterweight rope hitch plate to be fixed. The utility model optimizes the position and the number of the guide wheels through reasonable space layout, and changes the traction ratio to adjust the power of the main machine and the diameter size and the number of the steel wire ropes on the premise of ensuring enough traction force, thereby finally realizing the reduction of the occupation ratio of the shaft.

Description

Large tractor machine room-free freight elevator suspension device

Technical Field

The utility model relates to the field of elevators, in particular to suspension equipment of a large tractor machine room-free freight elevator.

Background

The elevator is a large electromechanical device with electromechanical integration, has high automation degree, can quickly and conveniently transport and carry a large amount of goods, and is widely used nowadays. With the rapid development of economy, the goods elevator is rapidly popularized and frequently used, so that the load capacity requirement of people on the goods elevator is higher and higher, wherein the goods elevator with a large load and without a machine room occupies a very important aspect. At present, a phenomenon that the larger the load is, the larger the requirement on the area of a hoistway is generally existed in a large-load machine-room-free elevator. More and more elevators are beginning to study how to increase the load capacity of machine room-less elevators while reducing the size of the hoistway, in an effort to achieve the ultimate goal of small hoistway large loads.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a large tractor machine room-free freight elevator suspension device.

The purpose of the utility model is achieved by the following technical scheme: the large tractor machine room-free cargo elevator suspension device mainly comprises a tractor, a guide wheel A, a guide wheel B, a guide wheel C, a guide wheel D, a guide wheel E, a guide wheel F, a counterweight frame guide wheel A, a top layer counterweight guide wheel, a counterweight frame guide wheel B, a steel wire rope, a car rope hitch plate, a bearing beam, a rope head component A, a counterweight rope hitch plate and a rope head component B, wherein one end of the steel wire rope is led out from the obliquely arranged tractor on the car side, guided by the guide wheel A on the bottom of the car, led to the guide wheel B on the bottom of the car, guided by the guide wheel C on the top layer on the same side, led to the top layer guide wheel D, then led downwards to the guide wheel E on the bottom of the car, guided to the rope head component A on the car rope hitch plate on the bearing beam by the guide wheel F on the bottom of the car and fixed; on the counterweight side, the steel wire rope at the other end of the tractor extends downwards, extends upwards to the top counterweight guide wheel on the bearing beam after being guided by the counterweight frame guide wheel B on the counterweight, extends downwards to the counterweight frame guide wheel A on the counterweight, and finally upwards guides to the rope head assembly B on the counterweight rope head plate through the counterweight frame guide wheel A and is fixed.

The guide wheels A and B form a group of car platform guide wheel sets A, and the guide wheels E and F form a group of car platform guide wheel sets B.

And the positions of the car platform guide wheel set A and the car platform guide wheel set B, the guide wheel C and the guide wheel D are in a vertical relation.

The tractor adopts a permanent magnet synchronous tractor.

The utility model has the beneficial effects that: the utility model optimally designs the positions and the number of the guide wheels through reasonable spatial layout, adjusts the power of the main machine and the diameter and the number of the steel wire ropes by changing the traction ratio on the premise of ensuring enough traction force, and finally realizes the reduction of the occupation ratio of the shaft.

Drawings

Fig. 1 is a schematic plan view of a hoistway according to the present invention.

Fig. 2 is a schematic diagram of the car-side suspension of the present invention.

Fig. 3 is a schematic diagram of the counterweight side suspension of the present invention.

Description of reference numerals: traction machine 1, leading wheel A2, leading wheel B3, leading wheel C4, leading wheel D5, leading wheel E6, leading wheel F7, counterweight frame leading wheel A8, top counterweight leading wheel 9, counterweight frame leading wheel B10, steel wire rope 11, car 12, car rope hitch plate 13, bearing beam 14, rope head component A15, counterweight 16, counterweight rope hitch plate 17, rope head component B18, car bottom guide wheel group A19, car bottom guide wheel group B20 and hoistway 21.

Detailed Description

The utility model will be described in detail below with reference to the following drawings:

example (b): as shown in the attached drawings, the large tractor machine room-less freight elevator suspension device mainly comprises a tractor 1, a guide wheel A2, a guide wheel B3, a guide wheel C4, a guide wheel D5, a guide wheel E6, a guide wheel F7, a counterweight frame guide wheel A8, a top counterweight guide wheel 9, a counterweight frame guide wheel B10, a steel wire rope 11, a car 12, a car rope hitch plate 13, a bearing beam 14, a rope head component A15, a counterweight 16, a counterweight rope hitch plate 17 and a rope head component B18, on the side of the car 12, one end of a steel wire rope 11 is led out from the obliquely arranged traction machine 1, guided by a guide wheel A2 at the bottom of the car 12, led to a guide wheel B3 at the bottom of the car 12, guided by a guide wheel C4 at the top layer at the same side, led to a guide wheel D5 at the top layer, led downwards to a guide wheel E6 at the bottom of the car 12, guided to a rope head assembly A15 on a car rope hitch plate 13 on a bearing beam 14 by a guide wheel F7 at the bottom of the car 12 and fixed; on the counterweight 16 side, the wire rope 11 at the other end of the traction machine 1 extends downwards, is guided by a counterweight frame guide wheel B10 on the counterweight 16, extends upwards to a top counterweight guide wheel 9 on a bearing beam 14, extends downwards to a counterweight frame guide wheel A8 on the counterweight 16, and finally is guided upwards to a rope head assembly B18 on a counterweight rope head plate 17 through a counterweight frame guide wheel A8 and is fixed. Guide wheel A2 and guide wheel B3 form a set of platform guide wheel set A19, and guide wheel E6 and guide wheel F7 form a set of platform guide wheel set B20. The bottom of the car 12 adopts a double-row 4-wheel structure, so that the stress is more dispersed and uniform, the operation is more stable and the shaking is less, the guide wheels are arranged on two sides of the car 12 in rows, and the space utilization is more reasonable. The positions of the platform guide wheel group A19 and the platform guide wheel group B20, the guide wheel C4 and the guide wheel D5 are in vertical relation. The traction machine 1 is a permanent magnet synchronous traction machine.

In the present elevator without machine room, the traction system for providing power mainly has two suspension modes: one is a machine room-less elevator in a 2:1 suspension mode, which can be understood as that the tension borne by an elevator rope is 1/2 of the counterweight of the elevator; in the 4:1 suspension mode adopted by the utility model, the pulling force borne by the steel wire rope 11 is only 1/4 of the elevator counterweight; meanwhile, the elevator without the machine room adopting the 4:1 suspension mode can improve the deceleration of the steel wire rope 22 and reduce the 11 pulling force of the steel wire rope, thereby reducing the moment of the tractor 1, and the structure of the suspension ratio 4:1 is adopted, compared with the traditional suspension ratio 2:1, the load bearing of each steel wire rope 11 can be reduced to half of the original load bearing, so that the safety of the steel wire ropes 11 with the same thickness is greatly improved. Meanwhile, the force borne by the traction machine 1 and the required power are correspondingly reduced, and the power of the main machine is reduced; the novel rope winding ratio is 4:1, the wrap angle of a traction wheel of the traction machine 1 is 180 degrees, the traction capacity of the whole machine is improved, the steel wire rope 11 is not easy to deviate, and the service life of the steel wire rope 11 is prolonged; compared with a traditional worm gear traction machine, the traction machine 1 adopts a permanent magnet synchronous traction machine, is simple in structure, does not need a reduction gearbox, is simple in process, reduces the size and the weight, improves the utilization rate of an effective space, and is small in vibration, low in noise, stable in operation, high in speed regulation precision, high in efficiency, high in power factor, safe, reliable and good in comfort level. The utility model is particularly applicable to 3T 0.5m/s machine roomless freight elevators.

It should be understood that equivalent alterations and modifications of the technical solution and the inventive concept of the present invention by those skilled in the art should fall within the scope of the appended claims.

Claims

1. The utility model provides a big hauler does not have computer lab cargo lift suspension equipment which characterized in that: mainly comprises a traction machine (1), a guide wheel A (2), a guide wheel B (3), a guide wheel C (4), a guide wheel D (5), a guide wheel E (6), a guide wheel F (7), a counterweight frame guide wheel A (8), a top counterweight guide wheel (9), a counterweight frame guide wheel B (10), a steel wire rope (11), a car (12), a car rope hitch plate (13), a bearing beam (14), a rope head component A (15), a counterweight (16), a counterweight rope hitch plate (17) and a rope head component B (18), wherein one end of the steel wire rope (11) is led out from the traction machine (1) which is obliquely arranged on the side of the car (12) and is guided to the guide wheel B (3) at the bottom of the car (12) through the guide wheel A (2) at the bottom of the car (12) and then guided to the guide wheel D (5) at the top layer through the guide wheel C (4) at the same side, and then is led to the guide wheel E (6) at the bottom of the car (12) downwards, then the rope is guided to a rope head component A (15) on a rope hitch plate (13) of the car on a bearing beam (14) through a guide wheel F (7) at the bottom of the car (12) and is fixed; on the counterweight (16) side, a steel wire rope (11) at the other end of the traction machine (1) extends downwards, is guided by a counterweight frame guide wheel B (10) on the counterweight (16), then extends upwards to a top layer counterweight guide wheel (9) on a bearing beam (14), then extends downwards to a counterweight frame guide wheel A (8) on the counterweight (16), and finally is guided upwards to a rope head assembly B (18) on a counterweight rope head plate (17) through the counterweight frame guide wheel A (8) and is fixed.

2. The large traction machine room-less freight elevator suspension device according to claim 1, characterized in that: the guide wheels A (2) and B (3) form a group of car platform guide wheel sets A (19), and the guide wheels E (6) and F (7) form a group of car platform guide wheel sets B (20).

3. The large traction machine room-less freight elevator suspension device according to claim 2, characterized in that: the positions of the car platform guide wheel set A (19) and the car platform guide wheel set B (20) are in vertical relation with the guide wheel C (4) and the guide wheel D (5).

4. The large traction machine room-less freight elevator suspension device according to claim 1, characterized in that: the traction machine (1) adopts a permanent magnet synchronous traction machine.