CN217264105U

CN217264105U - Elevator rope head vibration reduction structure

Info

Publication number: CN217264105U
Application number: CN202123330971.7U
Authority: CN
Inventors: 马登华
Original assignee: Shenzhen Shenri Environmental Protection Science & Technology Co ltd
Current assignee: Shenzhen Shenri Environmental Protection Science & Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-08-23
Anticipated expiration: 2031-12-28

Abstract

The utility model provides an elevator fag end vibration damping structure, two adjusting nut of upper end installation of wire rope pull rod, a plurality of restraint layers of crisscross installation and damping layer in adjusting nut's below, and the damping coefficient on each damping layer reduces from last to down in proper order, is equipped with the spring between the restraint layer at top and the adjusting nut. Through the use of the elevator rope head vibration reduction structure, the vibration and the generated noise in the elevator running process can be effectively reduced, so that the running safety of the elevator is protected, and the influence on the surrounding environment is avoided.

Description

Elevator fag end damping structure

Technical Field

The utility model relates to a lift, especially relate to a damping structure that is used for reducing wire rope tip vibration range on the elevator.

Background

At present, a permanent magnet synchronous motor is mostly adopted by a lifting elevator as a driving host machine for traction and lifting, and a traction structure with a plurality of pulley blocks is required to be equipped, so that two steel wire rope end stress assemblies are required to be installed on an elevator bearing beam in a machine room. The steel wire rope assembly generally comprises 5-6 steel wire ropes, stress deviation caused by overload reduction error possibly occurring in each steel wire rope or stress stretching of a product is caused, and a spring vibration reduction assembly corresponding to stress is installed at the top of each steel wire rope. In actual use, the stress of the steel wire ropes can be adjusted through the pretightening force of the springs so as to eliminate the uneven stress of the steel wire ropes, and therefore the stress of the steel wire ropes is balanced.

When the elevator runs at a high speed, the two steel wire rope head stress assemblies arranged on the bearing steel beams are stressed to lift the elevator car and the counterweight, the steel wire rope assemblies bear the self gravity of the car and the counterweight, and the steel wire ropes also generate large physical vibration with the guide wheels and the steel wire rope traction wheels due to high-speed sliding friction, so that the acting force is transmitted to the building structure through the elevator bearing steel beams, and the indoor sound environment of rooms of surrounding residents is influenced.

The existing elevator steel wire rope assembly is subjected to vibration isolation or stress adjustment by adopting a single spring assembly, although the spring assembly has a certain blocking effect on the vibration of an elevator, in actual use, the spring assembly is lack of damping separation because the spring assembly is continuously in a state of running by gravity, so that the phenomena of low-frequency vibration rigidity transmission and medium-high frequency vibration attenuation failure exist. Especially, when the steel wire ropes need to be balanced in stress by adjusting tension force, the vibration reduction effect is poorer, and therefore the elevator operation vibration noise disturbs people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elevator fag end damping structure who possesses compound damping effect of multilayer to reduce the vibration of elevator in service and the noise that produces.

Elevator fag end damping structure, include the wire rope pull rod and install in the locating part of wire rope pull rod upper end, the wire rope pull rod is located the below of locating part and installs the restraint layer of a plurality of transmission vibration and the damping layer that a plurality of reduced vibration, and a plurality of restraint layers and damping layer from the top down crisscross setting in proper order, still be equipped with the elastic layer that possesses elasticity between the restraint layer at locating part and top.

The elevator rope head vibration reduction structure is characterized in that the damping coefficient of each damping layer is sequentially reduced from top to bottom.

In the elevator rope head vibration damping structure, the steel wire rope pull rod is provided with the elastic layer below the limiting part, and the elastic layer can effectively absorb low-frequency vibration in the running process of an elevator; a multi-layer damping structure consisting of a plurality of restraint layers and a plurality of damping layers is arranged below the elastic layer, wherein the restraint layers uniformly transmit vibration generated in the running process of the elevator to all positions of the damping layers, and the damping layers can isolate the rigid transmission of the restraint layers on one hand and exert damping action on the vibration on the other hand so as to absorb various low, medium and high-frequency vibrations; meanwhile, the damping coefficients of the damping layers are sequentially reduced from top to bottom, and the steel wire rope can keep good rigidity in the working process, so that the steel wire rope can be ensured to stably and effectively provide damping action when the steel wire rope is subjected to stress adjustment, and good vibration attenuation and isolation effects are realized. Through the use of the elevator rope head vibration reduction structure, the vibration and the generated noise in the elevator running process can be effectively reduced, so that the running safety of the elevator is protected, and the influence on the surrounding environment is avoided.

Drawings

Fig. 1 is a structural schematic view of a rope hitch vibration damping structure of an elevator.

Detailed Description

The utility model provides an elevator fag end damping structure, includes wire rope pull rod 1 and installs in locating part 2 of wire rope pull rod upper end, and the wire rope pull rod is located the below of locating part and installs the restraint layer 3 of a plurality of transmission vibration and the damping layer 4 that a plurality of reduced vibration, and a plurality of restraint layers and damping layer from the top down crisscross setting in proper order, still is equipped with between the restraint layer at locating part and top and possesses elastic layer 5.

The elevator rope head vibration reduction structure is characterized in that the limiting parts 2 are two adjusting nuts which are in contact with each other, and the adjusting nuts below the limiting parts are connected with the elastic layer 5. In addition, the damping coefficient of each damping layer 4 is reduced from top to bottom in sequence, the restraint layer 3 and the damping layer 4 are provided with 3 layers or more, wherein the restraint layer 3 is a rigid plate, such as a steel plate; the damping layer 4 is made of damping elastic materials or made of a plurality of damping elastic materials in a composite mode, such as rubber, silica gel or polyurethane materials. And the elastic layer 5 is a spring, and two ends of the spring respectively abut against the limiting part 2 and the restraining layer 3 at the top.

According to the elevator rope head vibration damping structure, the upper end of the steel wire rope pull rod is provided with the two adjusting nuts, the lower adjusting nut abuts against the spring, the acting force of the spring can be adjusted through the movement of the adjusting nuts, and the upper adjusting nut abuts against the lower adjusting nut, so that the lower adjusting nut is tightly pressed, the operation of the elevator rope head vibration damping structure is more stable, and accidental dislocation or movement is avoided; the steel wire rope pull rod is provided with an elastic layer below the adjusting nut, the elastic layer can be a spring, the working stability of the spring is high, the structural complexity can be reduced, and therefore low-frequency vibration in the running process of the elevator can be absorbed through the spring; a multilayer damping structure consisting of a plurality of constraint layers and a plurality of damping layers is arranged below the spring, wherein the constraint layers uniformly transmit vibration in the running process of the elevator to each position of the damping layers, and the damping layers can isolate the rigid transmission of the constraint layers and exert damping action on the vibration so as to absorb various low, medium and high-frequency vibrations; meanwhile, the damping coefficients of the damping layers are sequentially reduced from top to bottom, and the steel wire rope can keep good rigidity in the working process, so that the steel wire rope can stably and effectively provide a damping effect when being stressed and adjusted, and a good vibration damping and isolating effect is realized. Through the use of the elevator rope head vibration reduction structure, the vibration and the generated noise in the elevator running process can be effectively reduced, so that the running safety of the elevator is protected, and the influence on the surrounding environment is avoided.

Claims

1. The utility model provides an elevator fag end damping structure, includes wire rope pull rod (1), its characterized in that: there is locating part (2) of installing in wire rope pull rod upper end, and wire rope pull rod is located the below of locating part and installs restraint layer (3) of a plurality of transmission vibration and damping layer (4) that a plurality of reduced vibration, and a plurality of restraint layer and damping layer from the top down crisscross setting in proper order, still is equipped with elastic layer (5) that possess elasticity between the restraint layer at locating part and top.

2. The elevator rope head vibration reducing structure according to claim 1, characterized in that: the damping coefficient of each damping layer (4) is reduced from top to bottom in sequence.

3. The elevator rope head vibration reducing structure according to claim 1 or 2, characterized in that: the restraint layer (3) and the damping layer (4) are provided with 3 layers or more.

4. The elevator rope head vibration reducing structure according to claim 1 or 2, characterized in that: the restraint layer (3) is a rigid plate.

5. The elevator rope head vibration reducing structure according to claim 1 or 2, characterized in that: the damping layer (4) is made of damping elastic materials.

6. The elevator rope head vibration damping structure according to claim 1 or 2, characterized in that: the limiting pieces (2) are two adjusting nuts which are in contact with each other, and the adjusting nuts below are connected with the elastic layer (5).

7. The elevator rope head vibration reducing structure according to claim 1 or 2, characterized in that: the elastic layer (5) is a spring, and two ends of the spring are respectively abutted against the limiting part (2) and the restraining layer (3) at the top.

8. The elevator rope head vibration reducing structure according to claim 6, wherein: the elastic layer (5) is a spring, and two ends of the spring are respectively abutted against the limiting part (2) and the restraining layer (3) at the top.