CN202575830U

CN202575830U - Multipoint synchronous lifting device

Info

Publication number: CN202575830U
Application number: CN 201220145442
Authority: CN
Inventors: 王维志
Original assignee: Hubei University of Automotive Technology
Current assignee: Hubei University of Automotive Technology
Priority date: 2012-04-09
Filing date: 2012-04-09
Publication date: 2012-12-05
Anticipated expiration: 2022-04-09

Abstract

The utility model provides a multipoint synchronous lifting device. The device comprises a motor, a worm-and-gear reducer and a roller, wherein both ends of the worm gear of the worm-and-gear reducer are connected with the roller through a shaft coupler; four steel wire ropes are symmetrically wound on the two rollers; a pulley is arranged at the top of each steel wire rope; a pulley bracket is arranged outside each pulley; the top of each steel wire rope is connected with a lifted object through one pulley; the steel wire ropes are symmetrically wound at both ends of each roller; and the steel wire ropes at both ends of each roller respectively rotate leftwards and rightwards. According to the multipoint synchronous lifting device, through the arrangement of the steel wire ropes on the roller, four steel wire ropes ascend or descend synchronously at the same speed when the motor drives the roller to rotate; and the worm-and-gear reducer has the self-locking function, so that the phenomenon that a heave object naturally falls down in the case of power failure of the motor is avoided, and synchronous lifting of multiple objects and multipoint synchronous lifting of the same object are realized.

Description

A kind of multiple spot synchronous hoisting device

Technical field

The utility model relates to a kind of lifting means, especially a kind of multiple spot synchronous hoisting device.

Background technology

Elevating gear is of many uses, needs the multiple spot of same object to promote synchronously under certain situation, promotes synchronously in the time of perhaps a plurality of object, if adopt a plurality of bonts to be difficult to accomplish precise synchronization.

Summary of the invention

The purpose of the utility model provides a kind of multiple spot synchronous hoisting device, can solve the problem that many objects promote synchronously or the multiple spot of same object promotes synchronously.

In order to solve the problems of the technologies described above; The technical scheme of the utility model is following: a kind of multiple spot synchronous hoisting device; It is characterized in that: this device comprises motor, worm-gear speed reducer, cylinder, and the worm gear two ends of worm-gear speed reducer are connected with cylinder through coupler, and symmetry is wound with four steel ropes on two cylinders; The top of steel rope is provided with pulley; The outside of pulley is provided with pulley bracket, the top of steel rope through pulley be raised object and link to each other, pulley bracket can rotate around central axis together with pulley; Said steel rope symmetry is around the two ends of each cylinder, and the steel rope rotation direction at each cylinder two ends is respectively left-handed and dextrorotation.

Improvement to technique scheme: the pulley rotation-speed measuring device is installed on the said pulley bracket.

Beneficial effect:

Use the described multiple spot synchronous hoisting device of the utility model, through the layout of steel rope on cylinder, in the time of can guaranteeing that the driven by motor cylinder rotates, four steel ropes rise synchronously or descend, and speed is consistent; The worm and gear device has auto-lock function, can prevent that the weight under the motor dead electricity situation from falling naturally, and the pulley speed detecting unit is measured the rotating speed of four pulleys; Treatment circuit converts frequency signal to voltage signal; Carry out in twos relatively and amplify, when a certain road abnormal signal becomes big or diminishes, expression each point hoisting speed is inconsistent; Brake equipment is implemented emergency braking, and protection is raised the safety of object and whole device; Pulley bracket can rotate around central axis, in lifting process, can remain the good strained condition of pulley.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is that the A-A of Fig. 1 is to cutaway view.

The specific embodiment

Like Fig. 1, the utility model multiple spot synchronous hoisting device shown in Figure 2; Comprise between coupler 7, worm and gear device 4, worm gear and the cylinder between motor 8, motor and the worm screw that symmetry is wound with four steel ropes 5 on coupler 3 and cylinder 2, two cylinders 2; One end of steel rope through pulley 1 be raised weight and link to each other; Be mounted with speed detecting unit 6 on four pulley bases, pulley bracket can rotate around line of centers, and the center shaft of pulley 1 is vertical with steel rope 5; Said steel rope 5 symmetries are around the two ends of each cylinder 2, and steel rope 5 rotation directions at each cylinder 2 two ends are respectively left-handed and dextrorotation.

Claims

1. multiple spot synchronous hoisting device; It is characterized in that: this device comprises motor, worm-gear speed reducer, cylinder, and the worm gear two ends of worm-gear speed reducer are connected with cylinder through coupler, and symmetry is wound with four steel ropes on two cylinders; The top of steel rope is provided with pulley; The outside of pulley is provided with pulley bracket, the top of steel rope through pulley be raised object and link to each other, pulley bracket can rotate around central axis together with pulley; Said steel rope symmetry is around the two ends of each cylinder, and the steel rope rotation direction at each cylinder two ends is respectively left-handed and dextrorotation.

2. a kind of multiple spot synchronous hoisting device according to claim 1 is characterized in that: the pulley rotation-speed measuring device is installed on the said pulley bracket.