CN219384414U

CN219384414U - Traction sheave with braking buffer function

Info

Publication number: CN219384414U
Application number: CN202320633712.1U
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: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-07-21
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses a traction sheave with a braking buffering function, the traction sheave is connected with a main shaft of a traction host machine, the traction sheave comprises brake blocks connected with the traction sheave, brake mechanisms are arranged on two sides of each brake block, each brake mechanism comprises an arc-shaped first brake block and a second brake block, a groove is formed in each first brake block, each second brake block is connected in the corresponding groove in a sliding mode, each first brake block is connected with a first driving mechanism, each second brake block is connected with a second driving mechanism, two sections of braking actions on the traction sheave are achieved through the corresponding first brake block and each second brake block, impact force of the traction sheave on a traction rope can be greatly reduced, breakage of the traction rope is avoided, shaking caused by a car is reduced rapidly, and excessive mental panic of passengers in the car is avoided.

Description

Traction sheave with braking buffer function

Technical Field

The utility model belongs to the technical field of elevators, and particularly relates to a traction sheave with a braking and buffering function.

Background

In elevator equipment, a traction sheave is an important equipment, the traction sheave is connected to a main shaft of a traction motor, a traction rope is arranged on the traction sheave, the traction rope is connected with an elevator car, and the elevator car is driven to lift by rotating the traction sheave.

An elevator belongs to special equipment, the use safety of the elevator is the most important aim, and a plurality of safety mechanisms are arranged on the elevator, wherein the safety mechanisms comprise a band-type brake mechanism so as to lock a rotating main shaft or traction sheave when in key, and stop the main shaft or traction sheave in extremely short time to stop the operation of a car.

However, the instant of locking can make the rotational speed of traction sheave suddenly drop, and the hauling rope can receive great impact force, and serious possible messenger's hauling rope fracture, and the sudden drop of traction sheave rotational speed also can lead to the car to suddenly stop and rock, causes mental panic to the passenger in the car.

Therefore, a buffer structure of the traction sheave is designed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the traction sheave with the brake mechanism, and the two-section braking buffering avoids overlarge impact force on the traction rope and reduces the shaking of the car.

In order to achieve the above purpose, the present utility model provides the following technical solutions: traction sheave with buffering function is stopped to system, traction sheave connects the main shaft of traction host computer, including connecting in traction sheave's brake block, the both sides of brake block all are provided with brake mechanism, brake mechanism includes curved first brake block and second brake block, be provided with the recess on the first brake block, second brake block sliding connection is in the recess, first actuating mechanism is connected to first brake block, second actuating mechanism is connected to the second brake block.

Further, the first driving mechanism comprises a supporting frame, a first driving block and a first electromagnetic coil are arranged on the supporting frame, the first braking block is connected with the first driving block, the first driving block is in sliding connection with the supporting frame, the first electromagnetic coil is sleeved on the first driving block, and a first driving spring is arranged between the first driving block and a well wall.

Further, the second driving mechanism comprises a second driving block and a second electromagnetic coil, wherein the second driving block and the second electromagnetic coil are arranged in the first driving block, the second braking block is connected with the second driving block, the second driving block is in sliding connection with the first driving block, the second electromagnetic coil is sleeved on the second driving block, and a second driving spring is arranged between the second driving block and the first driving block.

Further, the number of the first driving springs is greater than that of the second driving springs.

Further, one end of the brake block is connected to the end face of the traction sheave through a plurality of bolts.

Compared with the prior art, the utility model has the beneficial effects that: when the running speed of the elevator car is abnormal, the traction host machine and the second electromagnetic coil are powered off, the second brake block is extended through the second driving spring, the rotating speed of the traction wheel is rapidly and stably reduced through friction contact with the brake block, after the speed is reduced to a certain speed, the first electromagnetic coil is powered off, the first brake block is extended to be in friction contact with the brake block, the rotating speed of the traction wheel is further reduced until the traction wheel stops rotating, the impact force of the traction wheel to the traction rope can be greatly reduced through two sections of braking and stopping actions of the traction wheel, the breakage of the traction rope is avoided, meanwhile, the shaking caused by the elevator car is reduced rapidly, and excessive mental panic of passengers in the elevator car is avoided.

Drawings

Fig. 1 is a schematic structural view of a traction sheave with a braking buffer function according to the present utility model;

FIG. 2 is a schematic diagram of a brake mechanism according to the present utility model;

fig. 3 is a schematic diagram showing connection between a brake block and a traction sheave in the present utility model.

Reference numerals: 1. traction sheave; 2. a brake block; 3. a first brake pad; 4. a second brake pad; 5. a support frame; 6. a first driving block; 7. a first electromagnetic coil; 8. a first drive spring; 9. a second driving block; 10. a second electromagnetic coil; 11. and a second drive spring.

Detailed Description

In the description of the present utility model, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, only for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed as limiting the specific protection scope of the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present utility model, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.

The utility model is further described with reference to fig. 1 to 3.

Traction sheave with buffering function is stopped to system, traction sheave 1 connects the main shaft of traction host computer, including connecting in the brake block 2 of traction sheave 1, the both sides of brake block 2 all are provided with brake mechanism, brake mechanism includes curved first brake block 3 and second brake block 4, be provided with the recess on the first brake block 3, second brake block 4 sliding connection is in the recess, first actuating mechanism is connected to first brake block 3, second actuating mechanism is connected to second brake block 4.

As shown in fig. 2, in this embodiment, preferably, the first driving mechanism includes a supporting frame 5, a first driving block 6 and a first electromagnetic coil 7 are disposed on the supporting frame 5, the first brake pad 3 is connected with the first driving block 6, the first driving block 6 is slidably connected with the supporting frame 5, the first electromagnetic coil 7 is sleeved on the first driving block 6, and a first driving spring 8 is disposed between the first driving block 6 and a hoistway wall.

As shown in fig. 2, in this embodiment, preferably, the second driving mechanism includes a second driving block 9 and a second electromagnetic coil 10 disposed in the first driving block 6, the second brake pad 4 is connected to the second driving block 9, the second driving block 9 is slidably connected to the first driving block 6, the second electromagnetic coil 10 is sleeved on the second driving block 9, and a second driving spring 11 is disposed between the second driving block 9 and the first driving block 6.

As shown in fig. 2, in this embodiment, the positions of the first electromagnetic coil 7 and the second electromagnetic coil 10 are preferably staggered and not nested, so as to avoid mutual influence of the first electromagnetic coil 7 and the second electromagnetic coil 10 after being electrified.

As shown in fig. 1, in this embodiment, preferably, the number of the first driving springs 8 is greater than the number of the second driving springs 11.

As shown in fig. 3, in this embodiment, preferably, one end of the brake block 2 is connected to the end surface of the traction sheave 1 through a plurality of bolts.

As shown in fig. 1, the traction sheave 1 is driven to rotate by a traction host machine, and drives the brake block 2 to rotate at the same time, when the elevator car operates normally, the first electromagnetic coil 7 and the second electromagnetic coil 10 are electrified, so that the first driving block 6 and the second driving block 9 respectively move and respectively compress the first driving spring 8 and the second driving spring 11, and the first brake block 3 and the second brake block 4 are separated from the brake block 2, so that the traction sheave 1 operates normally.

When the running speed of the elevator is abnormal, the traction host machine and the second electromagnetic coil 10 are powered off simultaneously, the second driving block 9 is moved by the elastic force of the second driving spring 11, the second brake block 4 extends out of the groove until contacting with the brake block 2, the braking action of the traction sheave 1 starts to be carried out, the rotating speed of the traction sheave 1 is reduced rapidly and gently, after the traction sheave 1 is reduced to a certain speed, the first electromagnetic coil 7 is powered off again, the first driving block 6 moves under the elastic force of the first driving spring 8, the first brake block 3 contacts with the brake block 2, and the braking action of the traction sheave 1 is further carried out until the traction sheave 1 is completely stopped.

The impact force of the traction sheave 1 on the traction rope can be greatly reduced by stopping the traction sheave 1 at two sections, the breakage of the traction rope is avoided, meanwhile, the shaking caused by the car is reduced rapidly, and excessive mental panic of passengers in the car is avoided.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. Traction sheave with make and stop buffer function, traction sheave connects the main shaft of towing the host computer, its characterized in that: including the brake block of connecting in traction sheave, the both sides of brake block all are provided with brake mechanism, brake mechanism includes curved first brake block and second brake block, be provided with the recess on the first brake block, second brake block sliding connection is in the recess, first actuating mechanism is connected to first brake block, second actuating mechanism is connected to the second brake block.

2. The traction sheave with stopping and buffering functions according to claim 1, characterized in that: the first driving mechanism comprises a supporting frame, a first driving block and a first electromagnetic coil are arranged on the supporting frame, the first driving block is connected with the first brake block, the first driving block is in sliding connection with the supporting frame, the first electromagnetic coil is sleeved on the first driving block, and a first driving spring is arranged between the first driving block and a well wall.

3. The traction sheave with stopping and buffering functions according to claim 2, characterized in that: the second driving mechanism comprises a second driving block and a second electromagnetic coil, wherein the second driving block and the second electromagnetic coil are arranged in the first driving block, the second braking block is connected with the second driving block, the second driving block is in sliding connection with the first driving block, the second electromagnetic coil is sleeved on the second driving block, and a second driving spring is arranged between the second driving block and the first driving block.

4. The traction sheave with stop buffer function according to claim 3, characterized in that: the number of the first driving springs is greater than that of the second driving springs.

5. The traction sheave with stop buffer function according to claim 4, characterized in that: one end of the brake block is connected to the end face of the traction sheave through a plurality of bolts.