CN202415088U

CN202415088U - Large heavy-load lifting device

Info

Publication number: CN202415088U
Application number: CN2012200326021U
Authority: CN
Inventors: 惠世民; 周彩平; 程卫锋
Original assignee: SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd
Current assignee: SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd
Priority date: 2012-02-02
Filing date: 2012-02-02
Publication date: 2012-09-05
Anticipated expiration: 2022-02-02

Abstract

The utility model discloses a large heavy-load lifting device which consists of a lifting platform, a lifting guide mechanism, a lifter, a lifter support, a transmission device, a turnover upright column and fixed upright columns; a lead screw of the lifter is upward and is reversely mounted on the lifting platform for driving the lifting platform to carry out lifting motion, and the lifting platform is supported by four fixed upright columns in the lowest position; the lifter support is used for supporting the lead screw of the lifter in the lifting process of the lifting platform; when the lifting platform is in the highest working position, the upper end of the turnover upright column supports the lifting platform, and the lower end is hinged with the lifter support; and the guide mechanism is mounted on the lifting platform. The large heavy-load lifting device has the advantages that the lifting synchronization is good, the operation is stable, the use and maintenance are simple, the volume is small, the efficiency is high, the service life is long, and the construction cost can be effectively reduced.

Description

A kind of large-scale heavy duty bont

Technical field

The utility model relates to a kind of large-scale heavy duty bont, is used to promote 300～550 tons heavy wares, the lifting of particularly suitable cold rolled sheet pot galvanize unit zinc pot.

Background technology

At present in throughout the country the large-scale iron and steel enterprise, it is the lift system that combines with mechanical right-angled crossing arm of the direct lift system of hydraulic actuating cylinder, hydraulic actuating cylinder or the general mechanical elevating mechanism of central driving that the bont of cold rolled sheet pot galvanize unit zinc pot adopts more.But owing to receive the restriction of constructional feature separately, in use all can bring some inconveniences to the user: there is the difficult problem of long-term maintaining inconvenience such as difficulty, hydraulic valve piece, pipeline leakage of oil, replacing of adjustment synchronously in hydrostatic drive; The mechanical elevating mechanism of general central driving needs installing space bigger; Particularly zinc pot bont needs darker melt pit; Therefore user's construction volume, construction period and construction cost have been increased; Especially set up in the technological transformation of zinc pot at the zinc-plated unit that a zinc pot is arranged, increased difficulty of construction even can't accomplish technological transformation because existing melt pit is more shallow.The utility model has just in time remedied above deficiency, but also can promote the use of the lifting of other heave-load device.

The utility model content

The purpose of the utility model is: solve the lifting of heavy wares, particularly the lifting problem of existing pot galvanize unit zinc pot.

The utility model solves the technical scheme that its technical matters adopted:

A kind of large-scale heavy duty bont is made up of lifting table, up-down guiding mechanism, elevator, elevator bearing, driving device, upset column, vertical columns seven parts; The screw mandrel of said elevator oppositely is installed on the elevator landing towards last, and drives lifting table and do dipping and heaving, and said lifting table is supported by four vertical columns when lowest order; Said elevator bearing is used for supporting elevation machine screw mandrel in the lifting table lifting process; Said upset column is when lifting table upper end supporting elevation platform during in high workload position, and the lower end hinge connects its bearing; Said guiding mechanism is installed on the lifting table.

Said elevator has four, is divided into two groups, connects through driving device between two elevators of every group.

Said upset column has 4.

The utility model possesses following advantage:

1, adopt four elevators of a motor central driving, the up-down synchronism is good, operates steadily.

2, the column that goes up and down, overturns all adopts mechanical drive mode, uses, safeguards simple.

3, elevator mounting means compact conformation can be saved melt pit civil engineering amount, shortens construction period, reduce construction cost.

4, when lifting table was in lowest order and working position, lead screw of elevator all unloaded, and is only stressed in lifting process, the primary equipment long service life.

Description of drawings

Fig. 1 is the utility model structural representation.

Among the figure: 1 lifting table, 2 elevators, 3 upset columns, 4 drivings device, 5 guiding mechanisms, 6 vertical columns, 7 elevator bearings.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further specified.

The utility model principle of work is following:

When lifting table 1 when (the zinc pot needs to change), is opened the lifting control system, earlier with four elevators, 2 screw mandrel decline 50mm from working position decline; Make it to combine with elevator bearing 7 upper surfaces, lifting table 1 is upwards promoted, and stroke is about 50mm; Make lifting table 1 be lifted away from upset column 3 (50mm); Artificial lock pin removal with four upset columns, 3 vertical positions, to level attitude, operation control system makes lifting table drop to lowest order to electronic cylinder drive upset column 3 by vertical bit flipping; Lifting table 1 is supported by four vertical columns 6; Four elevator 2 screw mandrels continue to rise, and make elevating screw head connector and supporting seat 7 upper surfaces leave 50mm, and elevating screw all unloads.

When lifting table 1 when lowest order promotes; Elder generation is with the screw mandrel decline 50mm of four elevators 2; The screw mandrel head connector is combined with supporting seat 7 upper surfaces, continue to promote up to surpassing lifting table 1 work absolute altitude 50mm position, the upset column 3 that before is retracted is turned to vertical position and is in cooresponding position, lifting table 1 bottom from level gradually; Artificial lock pin with four upset columns, 3 vertical positions inserts, and crane correspondingly descends 50mm up to agreeing with upset column 3 feets then.Elevator 2 leading screws continue to rise, and make it to be lifted away from the about 50mm of supporting seat 7 upper surfaces, the screw mandrel unloading of elevator 2, and this moment, all the load of jacking system was born by four upset columns 3.

Claims

1. a large-scale heavy duty bont is characterized in that, is made up of lifting table, up-down guiding mechanism, elevator, elevator bearing, driving device, upset column, vertical columns seven parts; The screw mandrel of said elevator oppositely is installed on the elevator landing towards last, and drives lifting table and do dipping and heaving, and said lifting table is supported by four vertical columns when lowest order; Said elevator bearing is used for supporting elevation machine screw mandrel in the lifting table lifting process; Said upset column is when lifting table upper end supporting elevation platform during in high workload position, and the lower end hinge connects its bearing; Said guiding mechanism is installed on the lifting table.

2. a kind of large-scale heavy duty bont as claimed in claim 1 is characterized in that said elevator has four, is divided into two groups, connects through driving device between two elevators of every group.

3. a kind of large-scale heavy duty bont as claimed in claim 1 is characterized in that said upset column has 4.