CN202440225U

CN202440225U - Hoisting apparatus

Info

Publication number: CN202440225U
Application number: CN2012200309007U
Authority: CN
Inventors: 袁秉文; 王洪鹏
Original assignee: Shougang Jingtang United Iron and Steel Co Ltd
Current assignee: Shougang Jingtang United Iron and Steel Co Ltd
Priority date: 2012-01-31
Filing date: 2012-01-31
Publication date: 2012-09-19
Anticipated expiration: 2022-01-31

Abstract

The utility model relates to a hoisting apparatus, in particular to a hoisting apparatus used for asymmetric rough rolling working rolls. The hoisting apparatus comprises a symmetrical hanger, a counter weight and a conversion component, wherein the counter weight is in a soft connection with one end of the symmetrical hanger, which is opposite to a weighting direction of the rough rolling working rolls, through the conversion component, the top of the symmetrical hanger is connected with a crown block hook, and the lower end of the symmetrical hanger is connected with a bearing seat of the rough rolling working rolls. The hoisting apparatus, provided by the utility model, is simple in structure, through increasing a proper counter weight quantity and selecting a proper soft connection length, any weighting is adjustable, and the influence caused by the asymmetric working rolls can be eliminated by other methods other than mechanical personnel, thus the rough rolling working rolls can be loaded and unloaded conveniently; and the hoisting apparatus, provided by the utility model, has the advantages of strong applicability, low cost of the material selection of the counter weight material, few operators, capability of saving substances and labor cost, simple integrated device and easy manufacturing.

Description

A kind of lifting appliance

Technical field

The utility model relates to a kind of lifting appliance, is specifically related to a kind of lifting appliance that is used for asymmetric roughing working roll.

Background technology

Along with development of science and technology and steel market competition are reached the decisive stage, hot-rolled strip production line is when output is constantly soaring, and operating personal quantity constantly reduces.Each hot-strip factory functions of the equipments precision that all when improving constantly work efficiency, gives one's hand, the requirement that equipment is optimized is in the hope of taking the good opportunity in competition.And under the few situation of operating personal, the too much operating personal that takies carries out the working roll replacing time, can influence the steel rolling operation undoubtedly; Each roughing working roll of changing; Its suspender suspension centre can not be designed to the problem of symmetrical suspension centre because of roughing working roll bearing block structural limitations with preceding, and change the roughing working roll generally needs 3-4 hour at every turn; Also need mechanical personnel to cooperate simultaneously, promptly with jack with transmission side working roll jack-up slowly.Can not sling smoothly roughing working roll and will spend a large amount of manpower and materials and carry out this work of original suspender makes that original just nervous operating personal physical demands was very big, influences work efficiency; If counterweight directly is fixed on a side of suspender, although can reach the effect of balance when slinging, it is all very difficult to pacify the loading and unloading suspender, can not increase work efficiency equally, so must transform suspender.

Summary of the invention

The technical matters that the utility model will solve provides a kind of lifting appliance, in order to change asymmetric roughing working roll.

In order to achieve the above object, the technical scheme of the utility model employing is:

A kind of lifting appliance; Comprise symmetrical suspender, counterweight and converting member; Said counterweight lays particular stress on an end in the opposite direction with the roughing working roll and is flexible coupling through converting member and said symmetrical suspender; The top of said symmetrical suspender is connected with a day hitch, and the lower end of said symmetrical suspender is connected with the bearing seat of said roughing working roll.

In the such scheme, said converting member is a steel rope.

In the such scheme, said counterweight is provided with positioning groove, and the connecting pin on the bearing cover of said positioning groove and said roughing working roll matches.

In the such scheme, the lower end of said symmetrical suspender is connected with the bearing seat of said roughing working roll through connecting pin.

Compare with the prior art scheme, the beneficial effect that the technical scheme that the utility model adopts produces is following:

The utility model is simple in structure, and the lifting good balance effect is not damaged equipment, and significantly reduced operation number and plant maintenance personnel's labour intensity, has improved work efficiency.

Description of drawings

The structural representation of the lifting appliance that Fig. 1 provides for the utility model embodiment.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model technical scheme is described in detail.

As shown in Figure 1, the utility model embodiment provides a kind of lifting appliance that can lift by crane asymmetric roughing working roll, is used to change the roughing working roll.Lifting appliance comprises symmetrical suspender 1, counterweight 2 and converting member 3; Counterweight 2 lays particular stress on an end in the opposite direction with the roughing working roll and is flexible coupling through converting member 3 and symmetrical suspender 1; The top of symmetry suspender 1 is connected with a day hitch 4, and the lower end of symmetrical suspender 1 is connected with the bearing seat of roughing working roll through connecting pin 5.Counterweight 2 is provided with positioning groove 6, and the connecting pin on the bearing cover of positioning groove 6 and roughing working roll matches.Converting member 3 in the present embodiment is selected steel rope for use, and counterweight 2 is flexible coupling through steel rope realization and symmetrical suspender 1.

It is following to use the utility model to change the working process of asymmetric roughing working roll: at first the steel rope through appropriate length increases suitable counterweight 2 on symmetrical suspender 1; Hang up the hanger of symmetrical suspender 1 then with day hitch 4, the symmetrical suspender 1 of slinging, at this moment symmetrical suspender 1 is inclined under the effect of counterweight 2, keeps the heeling condition of symmetrical suspender 1, overhead traveling crane is reached above the roughing working roll that needs to change; This moment is toward falling symmetrical suspender 1, the end cap of counterweight 2 contact roughing earlier working roll bearing block, with the connecting pin of the positioning groove 6 aiming axis bearing end caps of counterweight 2 so that make counterweight 2 accurately locate and drop on bearing seat top; Owing to be to connect symmetrical suspender 1 and counterweight 2 with steel rope; After counterweight 2 runs into support; Steel rope is no longer stressed; Symmetry suspender 1 state that restores balance, symmetrical suspender 1 can be connected with the bearing seat of roughing working roll through connecting pin 5 easily under this state, has been that available lifting appliance has lifted by crane the roughing working roll then.Be placed on the fore side end cap of working roll bearing block owing to counterweight 2 during lifting; The weight of counterweight 2 also adds above that; Be the balanced, symmetrical state after making asymmetric roughing working roll sling; The position point and the registration device of roughing working roll bearing block bottom are broken away from each other, thereby hang out the roughing working roll smoothly.When hanging assigned address and unload lifting appliance; Earlier the roughing working roll is put down,, earlier the bearing seat of connecting pin 5 with the roughing working roll broken away from then by the opposite operation in tandem of slinging; Continue lifting again; To be placed in counterweight 2 on the bearing cover through the steel rope that is flexible coupling and sling and leave bearing seat, at a slant symmetrical suspender 1 and counterweight 2 sling then, can unload suspender.During symmetry suspender 1 withdraw from use, counterweight 2 still hangs over the home position.

The utility model principle is simple, utilizes the overbalance after the ingenious realization that is flexible coupling adds counterweight, rather than directly counterweight is fixed on a side of symmetrical suspender, and the balance when symmetrical suspender being converted into before the lifting in good time be connected with bearing seat is so that be connected with bearing seat; Design because of the counterweight positioning groove can well be with safe being placed on the working roll fore side bearing cover of counterweight simultaneously, and counterweight plays real effect during lifting, makes the roughing working roll when slinging, be state of equilibrium.The order that the utility model unloads the roughing working roll is opposite when slinging; Also be symmetrical suspender to be reverted to balance through symmetrical conversion with asymmetric transfer device; Can under state of equilibrium, from symmetrical suspender, unload asymmetric roughing working roll smoothly; All can reach the purpose of balance when playing key, the asymmetric working roll of convenient lifting.

In sum; The utility model is simple to operate; Through increasing suitable counterweight amount and selecting the suitable length that is flexible coupling, make any lay particular stress on all adjustable, the influence that laid particular stress on by working roll; Do not need mechanical personnel to eliminate the influence that produces because of working roll is asymmetric with other way again, can load and unload the roughing working roll easily; And the utility model applicability is strong, and the selection of counterweight material is cheap, and the operation number is few, has practiced thrift material and human cost, and single unit system is simple and easy, is easy to make.

The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. lifting appliance; It is characterized in that: comprise symmetrical suspender, counterweight and converting member; Said counterweight lays particular stress on an end in the opposite direction with the roughing working roll and is flexible coupling through converting member and said symmetrical suspender; The top of said symmetrical suspender is connected with a day hitch, and the lower end of said symmetrical suspender is connected with the bearing seat of said roughing working roll.

2. lifting appliance as claimed in claim 1 is characterized in that, said converting member is a steel rope.

3. lifting appliance as claimed in claim 1 is characterized in that said counterweight is provided with positioning groove, and the connecting pin on the bearing cover of said positioning groove and said roughing working roll matches.

4. lifting appliance as claimed in claim 1 is characterized in that, the lower end of said symmetrical suspender is connected with the bearing seat of said roughing working roll through connecting pin.