CN219449159U

CN219449159U - Elevator traction sheave

Info

Publication number: CN219449159U
Application number: CN202320521308.5U
Authority: CN
Inventors: 杨淞; 李明强; 梁超; 梁新星
Original assignee: Huzhou Guangrui Precision Machinery Co ltd
Current assignee: Huzhou Guangrui Precision Machinery Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-08-01
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses an elevator traction sheave, which comprises a bottom plate, wherein a rotating shaft and a wheel body are arranged above the bottom plate, and the wheel body is connected with a traction machine through the rotating shaft; the outer side of the wheel body is provided with a mounting frame, a brake block is arranged above the wheel body, a plurality of arc plates are fixedly connected in the bottom end of the brake block, and one side of each arc plate, which is far away from the brake block, is fixedly connected with anti-slip teeth; connecting blocks are arranged on two sides of the top of each brake block, steel wire ropes are fixedly connected to the tops of the connecting blocks, lifting mechanisms are arranged at the upper ends of the steel wire ropes, and driving assemblies for providing power for the lifting mechanisms are arranged at the tops of the mounting frames. According to the elevator traction device, the lifting mechanism, the driving assembly and the brake block are arranged, when the elevator falls accidentally, the brake block falls rapidly under the action of the lifting mechanism and the driving assembly and acts on the wheel body, and the anti-slip teeth of the brake block can clamp the traction rope on the wheel body, so that the traction wheel can realize emergency braking, and the elevator is prevented from injuring personnel in the elevator in the accidental falling process.

Description

Elevator traction sheave

Technical Field

The utility model relates to the technical field of elevators, in particular to an elevator traction sheave.

Background

The traction sheave is a rope sheave on a traction machine, also called a traction sheave or a driving sheave, and is a device for transmitting traction power by using friction force between a traction steel wire rope and a rope groove on a traction rim, and is arranged on a turbine shaft in a speed reducer, such as a gearless traction machine, and is arranged on the side of a brake and on the same axis with a motor shaft and a brake shaft.

The utility model discloses an elevator traction sheave in patent application number CN201921164531.9, including wheel body and grooving, the grooving sets up the edge of wheel body and can hold the rope of hauling, the grooving includes a plurality of and the structure is the same, the grooving includes bottom, lateral part and kink, the bottom the lateral part can with the rope of hauling contacts, just the bottom the lateral part is the cambered surface, the bottom is provided with wear-resisting coating and wear-resisting bed course, wear-resisting bed course is located wear-resisting coating's top, the lateral part is provided with wear-resisting coating. The elevator traction sheave is not provided with an emergency braking device in the use process, can not effectively solve emergency at high speed when power failure or other unexpected events occur, can not be braked emergently when unexpected falling occurs, and is easy to cause injury to personnel in an elevator.

Based on the above situation, the utility model provides an elevator traction sheave, which can effectively solve the problems.

Disclosure of Invention

The utility model aims to provide an elevator traction sheave. According to the elevator traction sheave provided by the utility model, the lifting mechanism, the driving assembly and the brake block are arranged, when an elevator accidentally falls, the brake block rapidly descends and acts on the wheel body under the action of the lifting mechanism and the driving assembly, and the anti-skid teeth of the brake block can clamp the traction rope on the wheel body, so that the traction sheave can realize emergency braking, and the elevator is prevented from damaging personnel in the elevator in the accidental falling process.

The utility model is realized by the following technical scheme:

the elevator traction sheave comprises a bottom plate, wherein a rotating shaft and a wheel body are arranged above the bottom plate, and the wheel body is connected with a traction machine through the rotating shaft; the anti-slip wheel comprises a wheel body, and is characterized in that an installation frame is arranged on the outer side of the wheel body and fixedly connected with a bottom plate, a brake block is arranged above the wheel body, a plurality of arc plates are fixedly connected in the bottom end of the brake block, and anti-slip teeth are fixedly connected on one side, away from the brake block, of the arc plates; the top both sides of brake block all are provided with the connecting block, connecting block top fixedly connected with wire rope, wire rope's upper end is provided with the elevating system that can change the brake block height, the top of mounting bracket is provided with for elevating system provides the drive assembly of power, elevating system and drive assembly all install in the mounting bracket top installation cavity.

According to the technical scheme, as a preferable technical scheme of the technical scheme, the lifting mechanism comprises screw rods vertically arranged on two sides of the installation cavity, the screw rods are in threaded connection with moving blocks, one sides of the moving blocks are fixedly connected with fixed blocks, and the bottoms of the fixed blocks are fixedly connected with the steel wire ropes; the two ends of the screw rod are respectively connected with the top and the bottom of the installation cavity in a rotating way through bearing seats, and the upper part of the screw rod is fixedly connected with a first bevel gear.

According to the above technical scheme, as a preferable technical scheme of the above technical scheme, the driving assembly comprises a driving motor and two transmission rods, the driving motor is fixedly installed at the top of the installation frame, and the output end of the driving motor extends into the installation cavity and is fixedly connected with a second bevel gear; and the two ends of the transmission rod are respectively fixedly connected with a third bevel gear, the third bevel gear at one end of the transmission rod is meshed with the first bevel gear, and the third bevel gear at the other end of the transmission rod is meshed with the second bevel gear.

According to the above technical scheme, as the preferable technical scheme of the above technical scheme, the two sides of the brake block are provided with the sliding blocks, and the two sides of the inside of the mounting frame are provided with the sliding grooves which are connected with the sliding blocks in a matching manner.

According to the above technical scheme, as a preferable technical scheme of the above technical scheme, two ends of the transmission rod are fixedly connected with the top of the installation cavity through the installation rod respectively.

According to the above technical scheme, as a preferable technical scheme of the above technical scheme, the outer wall of the rotating shaft is rotatably connected with a rotating shaft speed measuring module.

Compared with the prior art, the utility model has the following advantages:

according to the elevator traction sheave provided by the utility model, the lifting mechanism, the driving assembly and the brake block are arranged, when an elevator accidentally falls, the brake block rapidly descends and acts on the wheel body under the action of the lifting mechanism and the driving assembly, and the anti-skid teeth of the brake block can clamp the traction rope on the wheel body, so that the traction sheave can realize emergency braking, and the elevator is prevented from damaging personnel in the elevator in the accidental falling process.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a schematic structural view of a brake pad according to the present utility model.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present utility model, preferred embodiments of the present utility model will be described below with reference to specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

Example 1:

the elevator traction sheave comprises a bottom plate 1, a rotating shaft 2 and a wheel body 3 are arranged above the bottom plate 1, and the wheel body 3 is connected with a traction machine through the rotating shaft 2; the outer side of the wheel body 3 is provided with a mounting frame 4, the mounting frame 4 is fixedly connected with the bottom plate 1, a brake block 5 is arranged above the wheel body 3, a plurality of arc plates 6 are fixedly connected inside the bottom end of the brake block 5, and anti-slip teeth 7 are fixedly connected on one side, far away from the brake block 5, of the arc plates 6; the top both sides of brake block 5 all are provided with connecting block 8, connecting block 8 top fixedly connected with wire rope 9, wire rope 9's upper end is provided with the elevating system that can change the brake block 5 height, the top of mounting bracket 4 is provided with for elevating system provides the drive assembly of power, elevating system and drive assembly all install in mounting bracket 4 top installation cavity 10.

According to the elevator, the lifting mechanism, the driving assembly and the brake block 5 are arranged, when the elevator falls down accidentally, the brake block 5 falls down rapidly under the action of the lifting mechanism and the driving assembly and acts on the wheel body, and the anti-slip teeth of the brake block 5 can clamp the traction rope on the wheel body 3, so that the traction wheel can realize emergency braking, and the elevator is prevented from damaging personnel in the elevator in the accidental falling process.

Further, in another embodiment, the lifting mechanism comprises a screw rod 11 vertically installed at two sides of the installation cavity 10, the screw rod 11 is in threaded connection with a moving block 12, one side of the moving block 12 is fixedly connected with a fixed block 13, and the bottom of the fixed block 13 is fixedly connected with the steel wire rope 9; two ends of the screw rod 11 are respectively connected with the top and the bottom of the installation cavity 10 in a rotating way through bearing seats 14, and a first bevel gear 15 is fixedly connected to the upper portion of the screw rod 11.

Further, in another embodiment, the driving assembly includes a driving motor 16 and two transmission rods 17, the driving motor 16 is fixedly installed at the top of the installation frame 4, and an output end of the driving motor 16 extends into the installation cavity 10 and is fixedly connected with a second bevel gear 18; the two ends of the transmission rod 17 are respectively and fixedly connected with a third bevel gear 19, the third bevel gear 19 at one end is connected with the first bevel gear 15 in a meshed manner, and the third bevel gear 19 at the other end is connected with the second bevel gear 18 in a meshed manner.

Further, in another embodiment, the two sides of the brake block 5 are provided with sliding blocks 20, and two sides of the inside of the mounting frame 4 are provided with sliding grooves 21 which are connected with the sliding blocks 20 in a matching manner. By arranging the sliding block 20 and the sliding groove 21, the anti-skid teeth 7 of the arc-shaped plate 6 accurately fall onto the traction rope on the wheel body 3.

Further, in another embodiment, two ends of the transmission rod 17 are fixedly connected to the top of the installation cavity 10 through installation rods 22, respectively.

Further, in another embodiment, a spindle speed measuring module 23 is rotatably connected to the outer wall of the spindle 2. The rotating shaft speed measuring module 23 is used for detecting the rotating speed of the rotating shaft 2.

The working principle of one embodiment of the utility model is as follows:

when the elevator is in use, the rotating shaft 2 controls the wheel body 3 to rotate so as to drive the elevator to run, when the elevator fails and falls down accidentally, the rotating shaft speed measuring module 23 detects that the rotating shaft rotating speed exceeds the safety threshold, the driving motor 16 starts to run, the screw rod 11 is driven to rotate through the transmission rod 17, the moving block 12 on the screw rod 11 moves downwards, the brake block 5 is driven to move downwards and act on the wheel body 3, the traction rope on the wheel body 3 can be clamped by the anti-skid teeth 7 below the brake block 5, and the traction wheel is braked urgently. When the fault is repaired, the driving motor 16 is reversely operated to drive the brake pad 12 to move to the initial position.

Based on the description of the utility model and the figures, a person skilled in the art can easily make or use an elevator traction sheave according to the utility model and can produce the positive effects described in the utility model.

Unless specifically stated otherwise, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the positional relationship indicated is based on the positional relationship indicated in the drawings, and is merely for convenience of describing the present utility model and simplifying the description, and it is not necessary to indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationship in the present utility model are merely for exemplary illustration and should not be construed as limitations of the present patent, and it is possible for those skilled in the art to understand the specific meaning of the above terms in conjunction with the drawings and according to the specific circumstances.

Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" herein are to be construed broadly, e.g., they may be fixed, removable, or integral; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.

Claims

1. An elevator traction sheave, characterized in that: the traction machine comprises a bottom plate (1), wherein a rotating shaft (2) and a wheel body (3) are arranged above the bottom plate (1), and the wheel body (3) is connected with a traction machine through the rotating shaft (2); the novel anti-skid wheel is characterized in that an installation frame (4) is arranged on the outer side of the wheel body (3), the installation frame (4) is fixedly connected with the bottom plate (1), a brake block (5) is arranged above the wheel body (3), a plurality of arc plates (6) are fixedly connected to the inner part of the bottom end of the brake block (5), and anti-skid teeth (7) are fixedly connected to one side, far away from the brake block (5), of the arc plates (6); the top both sides of brake block (5) all are provided with connecting block (8), connecting block (8) top fixedly connected with wire rope (9), the upper end of wire rope (9) is provided with the elevating system that can change the brake block (5) height, the top of mounting bracket (4) is provided with for elevating system provides the drive assembly of power, elevating system and drive assembly are all installed in mounting bracket (4) top installation cavity (10).

2. An elevator traction sheave according to claim 1, characterized in that: the lifting mechanism comprises screw rods (11) vertically arranged at two sides of the installation cavity (10), the screw rods (11) are in threaded connection with moving blocks (12), one side of each moving block (12) is fixedly connected with a fixed block (13), and the bottom of each fixed block (13) is fixedly connected with the steel wire rope (9); the two ends of the screw rod (11) are respectively connected with the top and the bottom of the installation cavity (10) in a rotating way through bearing blocks (14), and a first bevel gear (15) is fixedly connected to the upper part of the screw rod (11).

3. An elevator traction sheave according to claim 2, characterized in that: the driving assembly comprises a driving motor (16) and two transmission rods (17), the driving motor (16) is fixedly arranged at the top of the mounting frame (4), and the output end of the driving motor (16) extends into the mounting cavity (10) and is fixedly connected with a second bevel gear (18); and the two ends of the transmission rod (17) are respectively fixedly connected with a third bevel gear (19), the third bevel gear (19) at one end is meshed with the first bevel gear (15), and the third bevel gear (19) at the other end is meshed with the second bevel gear (18).

4. An elevator traction sheave according to claim 1, characterized in that: both sides of the brake block (5) are provided with sliding blocks (20), and both sides of the inside of the mounting frame (4) are provided with sliding grooves (21) which are matched and connected with the sliding blocks (20).

5. An elevator traction sheave according to claim 3, characterized in that: the two ends of the transmission rod (17) are fixedly connected with the top of the installation cavity (10) through installation rods (22) respectively.

6. An elevator traction sheave according to claim 1, characterized in that: the outer wall of the rotating shaft (2) is rotatably connected with a rotating shaft speed measuring module (23).