CN201791750U - Guide device of sheet rolling mill - Google Patents

Abstract

The utility model discloses a guide device of a sheet rolling mill, which comprises a guide part, two lifting oil cylinders and a hydraulic locking part, wherein the hydraulic locking part is arranged between the two oil cylinders, the upper end of the hydraulic locking part is fixed on an upper roll system balance beam and the lower end of the hydraulic locking part is connected with the guide part. The pull rod of the hydraulic locking part holds the guide part, is synchronously lifted up and lowered down with the lifting oil cylinders, controls a limiting sleeve to be lifted up and lowered down correspondingly through a hydraulic motor and forms a longitudinal limit jointly with a stop block at the top end of the pull rod. Thereby, the guide part can be prevented from falling down and the maintenance time and the economic loss can be reduced.

Description

The guide device of sheet rolling mill

Technical field

The utility model relates to the anti-fall technology of guide device, more particularly, relates to a kind of guide device of sheet rolling mill.

Background technology

The heavy steel plate milling train of Germany western mark company design is used widely by iron and steel enterprise.But the falling accident of its forward and backward guide device in use, generally can take place.See also shown in Figure 1ly, this guide device 10 comprises leads a parts 11 and two hoist cylinders 12, and it is on the equalizer bar 1 that oil cylinder 12 upper ends are fixed on top roll, the lower end piston rod with lead a parts 11 and link to each other, lead the lifting of a parts 11 thereby drive.So frequent lifting very easily causes oil cylinder 12 to lose efficacy, thereby finally cause the falling accident of leading a parts 12 in the lifting process, makes steel plate nip in the guide and guard parts 12, causes guide and guards 10 whole damages.Each falling accident that takes place directly causes economic loss not down 1,000,000, and the repairing that stops production needs 24 hours at least, and consequence is very serious.

The utility model content

At the above-mentioned shortcoming that exists in the prior art, the purpose of this utility model provides a kind of guide device of sheet rolling mill, and this guide device can avoid leading falling of a parts.

For achieving the above object, the utility model adopts following technical scheme:

The guide device of this sheet rolling mill, comprise and lead a parts and two hoist cylinders, it is on the equalizer bar that the oil cylinder upper end is fixed on top roll, the lower end piston rod with lead a parts and link to each other, also comprise the locking member that surges, be located between two oil cylinders, it is on the equalizer bar that the upper end also is fixed on top roll, the lower end also with lead a parts and link to each other.

The described locking member that surges comprises with top roll and is the fixing housing of equalizer bar and is located at hydraulic motor, gear driving member, inner thread sleeve, spacing collar and pull bar on the housing that hydraulic motor output shaft links to each other with inner thread sleeve by gear driving member; Spacing collar is sheathed on the pull bar, and spacing collar is provided with external screw thread and is located at and carries out threaded engagement in the inner thread sleeve; Pull bar upper end is provided with block, the lower end with lead a parts and fix.

Described gear driving member comprises little, the gear wheel that is meshed, and pinion links to each other with hydraulic motor output shaft, and gear wheel radially is fixed on the inner thread sleeve.

The described locking member that surges also comprises spacing controlling organization, spacing controlling organization is located on the housing, comprise pulley, pull rope, weight and near switch, pulley is located at the housing upper end, pull rope one end links to each other with spacing collar, the other end is walked around pulley and is connected with weight, and several are located at housing one side successively near switch.

In technique scheme, the guide device of sheet rolling mill of the present utility model comprises leads a parts and two hoist cylinders, also comprises the locking member that surges, and is located between two oil cylinders, also to be fixed on top roll be on the equalizer bar in the upper end, the lower end also with lead a parts and link to each other.The locking member pull bar that surges hang lead a parts and with the hoist cylinder synchronization lifting, and control spacing collar by hydraulic motor and carry out corresponding lifting, and form longitudinal spacing with the block on pull bar top, thereby can prevent the generation of guide and guard parts falling accident, reduce repair time and economic loss.

Description of drawings

Fig. 1 is the schematic diagram of the guide device of prior art;

Fig. 2 is the structural representation of guide device of the present utility model;

Fig. 3 is the cutaway view of the locking member that surges of the present utility model.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

See also shown in Figure 2, the guide device 20 of sheet rolling mill of the present utility model is basic identical with prior art, equally also comprise and lead a parts 21 and two hoist cylinders 22, it is on the equalizer bar 1 that oil cylinder 22 upper ends are fixed on top roll, the lower end piston rod with lead a parts 21 and link to each other.Different is, this guide device 20 also comprises the locking member 23 that surges, and is located between two oil cylinders 22, and it is on the equalizer bar 1 that the upper end also is fixed on top roll, the lower end also with lead a parts 21 and link to each other.Please in conjunction with shown in Figure 3, this locking member 23 that surges comprise with top roll be the fixing housing 231 of equalizer bar 1, and be located at hydraulic motor 232, gear driving member, inner thread sleeve 234, spacing collar 235 and pull bar 236 on the housing 231, the output shaft of hydraulic motor 232 links to each other with inner thread sleeve 234 by gear driving member; Spacing collar 235 is sheathed on the pull bar 236, and spacing collar 235 is provided with external screw thread and is located at and carries out threaded engagement in the inner thread sleeve 234; Pull bar 236 upper ends are provided with block 237, the lower end with lead a parts 21 and fix.And gear driving member specifically comprises little, the gear wheel that is meshed, and pinion 233a links to each other with the output shaft of hydraulic motor 232, and gear wheel 233b radially is fixed on the inner thread sleeve 234.

In addition, this locking member 23 that surges also comprises a spacing controlling organization, this spacing controlling organization is located on the housing 231, comprise pulley 241, pull rope 238, weight 239 and near switch 240, pulley 241 is located at housing 231 upper ends, and pull rope 238 1 ends link to each other with spacing collar 235, and the other end is walked around pulley 237 and is connected with weight 239, several are located at housing 231 1 sides successively near switch 240, are set to spacing positions such as upper and lower limit and warning respectively.

The operation principle of the guide device 20 of sheet rolling mill of the present utility model is as follows:

When roll change, drive gear wheel 233b by hydraulic motor 232 driving pinion 233a and rotate, be displaced downwardly to the bottom thereby make inner thread sleeve 234 rotations and drive spacing collar 235, at this moment, lead a parts 21 by hoist cylinder 22 drives and descend, and pull bar 236 also can descend with leading a parts 21; When the dress roller, drive guide and guard parts 21 by hoist cylinder 22 and rise to the precalculated position, then, same control hydraulic motor 232 drives inner thread sleeve 234 counter-rotatings, thereby drive spacing collar 235 moves to pull bar 236 from the bottom top, and offset, thereby block pull bar 236 with block 237, make pull bar 236 hang the guide and guard parts all the time, play the purpose that prevents that the guide and guard parts from falling suddenly.In this process, weight 239 carries out oppositely moving with the lifting of spacing collar 235 by pull rope 238, and triggers accordingly near switch 240, and by sending signal near switch 240, in order to the driving of automatic control hydraulic motor 232.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (4)

1. the guide device of a sheet rolling mill comprises and leads a parts and two hoist cylinders, and it is on the equalizer bar that oil cylinder upper end is fixed on top roll, the lower end piston rod with lead a parts and link to each other, it is characterized in that:

Also comprise the locking member that surges, be located between two oil cylinders that it is on the equalizer bar that the upper end also is fixed on top roll, the lower end also with lead a parts and link to each other.

2. the guide device of sheet rolling mill as claimed in claim 1 is characterized in that:

The described locking member that surges comprises with top roll and is the fixing housing of equalizer bar and is located at hydraulic motor, gear driving member, inner thread sleeve, spacing collar and pull bar on the housing that hydraulic motor output shaft links to each other with inner thread sleeve by gear driving member; Spacing collar is sheathed on the pull bar, and spacing collar is provided with external screw thread and is located at and carries out threaded engagement in the inner thread sleeve; Pull bar upper end is provided with block, the lower end with lead a parts and fix.

3. the guide device of sheet rolling mill as claimed in claim 2 is characterized in that:

Described gear driving member comprises little, the gear wheel that is meshed, and pinion links to each other with hydraulic motor output shaft, and gear wheel radially is fixed on the inner thread sleeve.

4. the guide device of sheet rolling mill as claimed in claim 2 is characterized in that:

The described locking member that surges also comprises spacing controlling organization, spacing controlling organization is located on the housing, comprise pulley, pull rope, weight and near switch, pulley is located at the housing upper end, pull rope one end links to each other with spacing collar, the other end is walked around pulley and is connected with weight, and several are located at housing one side successively near switch.

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