CN201902033U

CN201902033U - Platform lifting device

Info

Publication number: CN201902033U
Application number: CN2010206564861U
Authority: CN
Inventors: 金时赞; 吴恩旭; 高楠; 张显亮
Original assignee: Angang Heavy Machinery Co Ltd
Current assignee: Angang Heavy Machinery Co Ltd
Priority date: 2010-12-10
Filing date: 2010-12-10
Publication date: 2011-07-20
Anticipated expiration: 2020-12-10

Abstract

The utility model relates to a platform lifting device, which comprises an electric motor, a speed reducer, winding drums, fixed pulley groups, supporting rods and wire cables, wherein, the electric motor is installed on a motor base and fixed on the ground through the motor base; the electric motor is connected with the speed reducer; the winding drums are respectively connected with output shafts at two ends of the speed reducer; the winding drums are fixed on the ground through winding drum bases; the fixed pulley groups are respectively arranged on both sides of each winding drum; each fixed pulley group comprises a bottom pulley and a top pulley; the bottom pulleys are fixed on the ground through pulley bases; the top pulleys are fixed on the supporting rods; the bottom ends of the supporting rods are fixed on the ground; two wire cables are wound on each winding drum; one end of each wire cable is connected with the corresponding winding drum; and the other end of each wire cable is wound from the bottom and the upper part of the corresponding winding drum, passes through the bottom pulleys and the top pulleys in sequence, and is then connected with a lifting platform. The platform lifting device has the advantages of reasonable structural design, low cost and good comprehensive performance, and can be widely used on mechanical lifting platforms.

Description

A kind of platform lifting device

Technical field

The utility model relates to a kind of mechanical driving device, particularly relates to a kind of platform lifting device.

Background technology

At present, along with becoming increasingly abundant of culture life, people are more and more higher to the requirement of stage effect in the performing active.In the entertainment place than higher gears, for creating a kind of lively three-dimensional performing effect, traditional static stage is abandoned gradually, the substitute is elevator stage.One steel work weldments that adopt of present elevator stage, promote base and stage and vertically rise along guide rail when the piston of telescoping hydraulic cylinder rises synchronously as pedestal more.Its course of work is as follows: after Oil pump electrical machinery started, double-united oil pump was started working, but high-capacity pump and low-capacity pump all are in unloading condition.When stage rose, electromagnet got electric, boosted in the lifting loop, and the hydraulic oil of high-capacity pump output enters four hydraulic cylinder rodless cavities through hydraulic control one-way valve again by reversal valve respectively, produces thrust, overcame stage weight and guideway friction promotion stage and rose.Because of the hydraulic cylinder size is bigger, the stage rate of climb is slower, be to reduce the quantity of Hydraulic Elements, and guarantee system reliability is not provided with the speed governing element and the design scheme taking directly to be guaranteed by oil pump and hydraulic cylinder size; When stage stops to rise or arrives range, the electromagnet dead electricity, the major loop release realizes that stage descends.

In sum, existing activity class platform lifting device, one adopts hydraulic drive or elevating screw transmission, its complex structure, in use, stroke is also very limited.And the fluid pressure type transmission in use needs to prepare relevant auxiliary equipment such as Hydraulic Station, and it is too high to make it cost of investment, and maintenance workload is big, and the maintenance cost height causes bigger financial burden.

Summary of the invention

The utility model has overcome deficiency of the prior art, and a kind of reasonable in design is provided, and cost is low, the reliable platform lifting device of handling safety.

In order to address the above problem, the utility model by the following technical solutions:

A kind of platform lifting device, comprise motor, reductor, reel, fixed pulley group, support bar and steel cable, motor is installed on the motor base, motor is fixed on the ground by motor base, motor is connected with reductor, reductor two ends output shaft is connected with a reel respectively, reel is fixed on the ground by the reel base, the both sides of each reel are respectively equipped with a fixed pulley group, the fixed pulley group comprises bottom pulley and top pulleys, bottom pulley is fixed on the ground by the pulley base, and top pulleys is fixed on the support bar, and the support bar bottom is fixed on the ground; Twine two steel cables on each reel respectively, an end of two steel cables is connected with reel, and an end lays out from reel bottom and top respectively, is connected with lift platform through bottom pulley, top pulleys successively again.

Compared with prior art, the beneficial effects of the utility model are:

The utility model reasonable in design, cost is low, and is stable, and processing ease is easy to maintenance, has effectively reduced equipment cost and maintenance cost, has improved the performance of enterprises.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model vertical view;

Fig. 3 is the utility model left view.

The specific embodiment

A kind of platform lifting device, as Fig. 1～shown in Figure 3, comprise motor 10, reductor 4, reel 6, the fixed pulley group, support bar 8 and steel cable 3, motor 10 is installed on the motor base 9, motor 10 is fixed on the ground by motor base 9, motor 10 is connected with reductor 4, reductor 4 two ends output shafts are connected with a reel 6 respectively, reel 6 is fixed on the ground by reel base 7, the both sides of each reel 6 are respectively equipped with a fixed pulley group, and the fixed pulley group comprises bottom pulley 1 and top pulleys 11, and bottom pulley 1 is fixed on the ground by pulley base 2, top pulleys 11 is fixed on the support bar 8, and support bar 8 bottoms are fixed on the ground; An end that twines 3, two steel cables 3 of two steel cables on each reel 6 respectively is connected with reel 6, and an end lays out from reel 6 bottoms and top respectively, is connected with lift platform 5 through bottom pulley 1, top pulleys 11 successively again.

In the time of need carrying out descending operation to platform, start motor 10, then motor 10 drives reel 6 rotations by reducer, thereby realizes the folding and unfolding of steel cable 3, and steel cable 3 is walked around assembly pulley, and other end pulling lift platform 5 carries out lift work.

Claims

1. platform lifting device, it is characterized in that, comprise motor, reductor, reel, the fixed pulley group, support bar and steel cable, motor is installed on the motor base, motor is fixed on the ground by motor base, motor is connected with reductor, reductor two ends output shaft is connected with a reel respectively, reel is fixed on the ground by the reel base, the both sides of each reel are respectively equipped with a fixed pulley group, and the fixed pulley group comprises bottom pulley and top pulleys, and bottom pulley is fixed on the ground by the pulley base, top pulleys is fixed on the support bar, and the support bar bottom is fixed on the ground; Twine two steel cables on each reel respectively, an end of two steel cables is connected with reel, and an end lays out from reel bottom and top respectively, is connected with lift platform through bottom pulley, top pulleys successively again.