CN219279191U

CN219279191U - Height adjusting device for counterweight buffer

Info

Publication number: CN219279191U
Application number: CN202222440941.XU
Authority: CN
Inventors: 郑世云; 杨名星; 王成华; 伍克林
Original assignee: Chongqing Macro Lift Co Ltd
Current assignee: Chongqing Macro Lift Co Ltd
Priority date: 2022-09-02
Filing date: 2022-09-15
Publication date: 2023-06-30
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a height adjusting device of a counterweight buffer, which comprises a base, wherein a driving motor is arranged on the base and is in transmission connection with a vertically arranged screw rod, wherein the lower end surface of the screw rod is attached to the upper end surface of the base and is in rotary fit connection with the upper end surface of the base, a sliding seat is sleeved on the screw rod in a threaded fit manner, and the screw rod can drive the sliding seat to move up and down when driven by the driving motor to rotate. The upper end of the sliding seat is horizontally provided with a mounting plate for mounting the counterweight buffer. The utility model can be flexibly adjusted according to the distance between the counterweight device and the counterweight buffer, and has high adjustment safety, simple structure and convenient adjustment.

Description

Height adjusting device for counterweight buffer

Technical Field

The utility model relates to the technical field of elevator equipment, in particular to a counterweight buffer height adjusting device.

Background

In the use process of the elevator, a certain amount of extension of the elevator traction steel wire rope can occur after the elevator traction steel wire rope is used for a period of time, so that the distance between the counterweight device and the counterweight buffer is reduced, the buffer effect of initial setting cannot be achieved, and potential safety hazards are brought. Under the normal condition, the current processing mode is to set a corresponding over-travel seat below the counterweight device, after the elevator is used for a period of time, the corresponding over-travel seat is taken down by a maintenance personnel to ensure the safety distance between the counterweight device and the counterweight buffer, when the over-travel seat is taken down, an operator needs to stop the operation of the elevator and go down to a pit to operate, the potential safety hazard is large, the time and the labor are wasted, the normal operation of the elevator is influenced, and a plurality of inconveniences are brought to the maintenance of the elevator.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: the utility model provides a to heavy buffer height adjusting device, has solved the distance of prior art to be difficult to adjust between counterweight and the heavy buffer, adjusts the security risk big, adjusts inconvenient problem.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the height adjusting device for the counterweight buffer comprises a base, wherein a driving motor is arranged on the base and is in transmission connection with a vertically arranged screw rod, the lower end face of the screw rod is attached to the upper end face of the base and is in rotary fit connection with the upper end face of the base, a sliding seat is sleeved on the screw rod in a threaded fit manner, and the screw rod can drive the sliding seat to move up and down when driven by the driving motor to rotate; the upper end of the sliding seat is horizontally provided with a mounting plate for mounting a counterweight buffer opposite to the counterweight device.

As optimization, the upper end surface of the base is provided with a containing groove, the driving motor is vertically arranged in the containing groove, and a motor shaft of the driving motor faces upwards and is coaxially connected with the screw rod; the size of the opening end of the accommodating groove is smaller than the diameter of the screw rod, so that the lower end face of the screw rod can be attached to the upper end face of the base.

As optimization, the screw hole which is in threaded fit connection with the screw rod is vertically formed in the sliding seat, and the length of the screw hole is larger than that of the screw rod.

As an optimization, the device further comprises a distance sensor, wherein the distance sensor is arranged on the counterweight device, and the detection end of the distance sensor faces downwards and faces the counterweight buffer.

Compared with the prior art, the application has the following beneficial effects:

according to the utility model, the counterweight buffer is arranged on the height adjusting device, the distance sensor is arranged between the counterweight buffer and the counterweight device, when the distance between the counterweight buffer and the counterweight device is reduced due to the extension of the elevator traction wire rope in the use process of the elevator, the distance sensor triggers a distance signal, and at the moment, the driving motor of the height adjusting device drives the screw rod to rotate, so that the sliding seat is driven to drive the counterweight buffer to move up and down, and the safety distance between the counterweight device and the counterweight buffer is ensured. Meanwhile, the lower end face of the screw rod is in fit connection with the base in a rotating mode, and therefore the height adjusting device can also play a most basic role in supporting and limiting the counterweight buffer when the counterweight device is pressed on the counterweight buffer. The utility model can be flexibly adjusted according to the distance between the counterweight device and the counterweight buffer, and has high adjustment safety, simple structure and convenient adjustment.

Drawings

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

in the figure, 1 base, 2 driving motor, 3 lead screw, 4 slide, 5 screw, 6 mounting panel, 7 pit, 8 counterweight device, 9 counterweight buffer, 10 distance sensor.

Description of the embodiments

The present utility model will be described in further detail with reference to the accompanying drawings.

The specific implementation method comprises the following steps: with reference to figure 1 of the drawings,

the utility model provides a high adjusting device of counterweight buffer, includes installs the base 1 in elevator well pit 7, is equipped with a driving motor 2 on base 1, driving motor 2 is connected with the lead screw 3 transmission of a vertical setting, wherein, the lower terminal surface of lead screw 3 is pasted and normal running fit is connected with the up end of base 1, and the screw thread fit cover is equipped with a slide 4 on lead screw 3, lead screw 3 can drive slide 4 and reciprocate when the drive of driving motor 2 rotates. Specifically, a containing groove penetrating through the upper end face of the base 1 is vertically formed in the base, the driving motor 2 is vertically arranged in the containing groove, and a motor shaft of the driving motor faces upwards and is coaxially connected with the screw rod 3; the size of the opening end of the accommodating groove is smaller than the diameter of the screw rod 3, so that the lower end face of the screw rod 3 can be attached to the upper end face of the base 1. Like this, when counterweight 8 presses on counterweight buffer 9, because lead screw 3 laminating with base 1, lead screw 3 and slide 4 threaded connection, consequently this adjusting device's whole has great rigidity in vertical direction, can be fine play the support to counterweight buffer 9 and block and spacing effect. The driving motor 2 is vertically arranged in the base 1, and the screw rod 3 is attached to the base 1, so that a motor shaft of the driving motor 2 is not stressed vertically, is not easy to damage, and has long service life and simple transmission structure. In addition, in the concrete implementation, in order to ensure that the sliding seat 4 can better move vertically under the drive of the screw rod 3, the sliding seat 4 is preferably connected with the side wall of the pit 7 through a sliding block or a track and other structures, so that the sliding seat 4 can only move up and down when the screw rod 3 rotates, and cannot rotate to a certain extent, and the stability is better. If the sliding seat 4 is not connected with the side wall of the pit 7, the high requirements on the quality of the sliding seat 4 and the matching friction force of the screw rod 3 and the screw hole 5 are met, and the sliding seat can be specifically selected according to actual requirements.

Screw holes 5 in threaded fit connection with the screw rods 3 are vertically formed in the sliding seat 4, and the length of the screw holes 5 is larger than that of the screw rods 3. A mounting plate 6 is horizontally arranged at the upper end of the slide 4 for mounting a counterweight buffer 9. Specifically, the mounting plate 6 closes one end of the screw hole 5, and the counterweight buffer 9 is fixed on the mounting plate 6 by bolts. In this way, one end of the screw rod 3, which is away from the driving motor 2, is not extended out of the sliding seat 4 or is propped against the lower side of the mounting plate 6, so that the safety distance between the counterweight device 8 and the counterweight buffer 9 and the normal use of the whole device are affected.

In order to facilitate that an operator can know the distance between the counterweight 8 and the counterweight buffer 9 without going into the pit 7, a distance sensor 10 is installed on the counterweight 8, and the detection end of the distance sensor is downward and opposite to the counterweight buffer 9, so that when the distance between the counterweight 8 and the counterweight buffer 9 is adjusted, a distance signal of the distance sensor 10 can be triggered, the operator can be prompted in various modes such as display or audible and visual alarm, the operator can adjust the distance conveniently, the adjustment risk is low, and the operation is convenient.

While embodiments of the present utility model have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents, and thus the embodiments of the utility model are to be considered illustrative of the utility model and not limited in any way.

Claims

1. The height adjusting device for the counterweight buffer is characterized by comprising a base, wherein a driving motor is arranged on the base and is in transmission connection with a vertically arranged screw rod, the lower end face of the screw rod is attached to the upper end face of the base and is in rotary fit connection with the upper end face of the base, a sliding seat is sleeved on the screw rod in a threaded fit manner, and the screw rod can drive the sliding seat to move up and down when driven by the driving motor to rotate; the upper end of the sliding seat is horizontally provided with a mounting plate for mounting a counterweight buffer opposite to the counterweight device.

2. The counterweight buffer height adjusting device according to claim 1, wherein a receiving groove is provided on an upper end surface of the base, the driving motor is vertically installed in the receiving groove, and a motor shaft thereof is upward and coaxially connected with the screw rod; the size of the opening end of the accommodating groove is smaller than the diameter of the screw rod, so that the lower end face of the screw rod can be attached to the upper end face of the base.

3. The height adjusting device for the counterweight buffer according to claim 2, wherein a screw hole in threaded fit connection with the screw rod is vertically formed in the sliding seat, and the length of the screw hole is greater than that of the screw rod.

4. The counterweight buffer height adjustment device of claim 1, further comprising a distance sensor mounted to the counterweight device with its sensing end facing downward and opposite the counterweight buffer.