CN201376001Y

CN201376001Y - Idle roller device of rolling mill

Info

Publication number: CN201376001Y
Application number: CN200920068746U
Authority: CN
Inventors: 仲晓然; 谈似锋
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2009-03-12
Filing date: 2009-03-12
Publication date: 2010-01-06
Anticipated expiration: 2019-03-12

Abstract

The utility model discloses an idle roller device of a rolling mill. The device is arranged in the space of a rack of the rolling mill for arranging a lower working roller and comprises a base, a bearing seat and an idle roller way, wherein the bearing seat is arranged on the base; and the idle roller way is arranged in the bearing seat. When a rolled piece needs dumming, the device is used for replacing the original lower working roller; as the idle roller way can roll freely along with the dumming of the rolled piece by the bearing seat, the friction between the rolled piece and the roller way can be effectively avoided, thereby not only ensuring the surface quality of the rolled piece, but also reducing the maintenance cost on the roller and increasing the enterprise benefit.

Description

The empty roller arrangement of crossing of milling train

Technical field

The utility model relates to the sky of milling train rolled piece and crosses technology, more particularly, relates to the empty roller arrangement of crossing of a kind of milling train.

Background technology

The rolling metal milling train generally is made up of frame (memorial archway) and roll.See also shown in Figure 1ly, in the frame 1 of typical four-high mill upper and

lower backing roll

2,3 and upper and

lower working roll

4,5 be housed respectively, during milling train work, the slit of rolled piece 6 (strip) between upper and lower working

roll

4,5 by and rolled.Because the drive system of roll is made up of parts such as motor, reductor, power transmission shafts, wherein arbitrary link is out of order and all can causes milling train to stop, and then influence is produced completely.Please in conjunction with shown in Figure 2, in order to reduce the loss that stops production,, can decontrol the roll slit for the tandem mill that on technology, allows gap, allow rolled piece 6 without rolling directly by trouble rolling mill, enter follow-up unit continue rolling, to keep production.At this moment, the rolled piece 6 that passes through can't drive huge roll and do passive rotation fast, and perhaps roll not allows rotation, and promptly roll is " extremely ", and this interim measure is commonly called as " dead roller is empty to be crossed " on producing." dead roller is empty to be crossed ", owing to friction mutually between the bottom working roll 5 of rolled piece 6 lower surfaces and stall thereby scratches though production is continued, and causes rolled piece 6 waster to occur because of surface quality problems; The surface of same bottom working roll 5 is also easily ground the strip plane by rolled piece 6, and causing needs its surface of reconditioning again in next time before the running, thereby has increased expensive maintenance cost.

The utility model content

At the above-mentioned shortcoming that exists in the prior art, the purpose of this utility model provides the empty roller arrangement of crossing of a kind of milling train, and this device can help the empty mistake of rolled piece, avoids rolled piece scratch and roll wear.

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

This milling train is empty to be crossed roller arrangement and is located in the space of installation bottom working roll of rolling-mill housing, comprises base, bearing block and the empty roller-way of crossing, and bearing block is located at the both sides of base upper end respectively; The empty roller bed frame of crossing is located on the base, and the empty two ends of crossing roller-way are located in the bearing block respectively.

It is a free roller that described sky is crossed roller-way.

The described empty free roller that roller-way comprises that two height are arranged of crossing.

Described base comprises pair of base, and being connected by connecting rod between two pedestals is integral; Described bearing block is by being bolted on the corresponding pedestal.

The bottom of described pedestal is provided with slide plate.

Described pedestal one side is provided with gib head.

One side two ends of described pedestal also are respectively equipped with the locating piece of pedestal location usefulness.

In technique scheme, milling train of the present utility model is empty to be crossed roller arrangement and is located in the space of installation bottom working roll of rolling-mill housing, comprises base, is located at the bearing block on the base and the sky be located in the bearing block is crossed roller-way.When rolled piece needs sky out-of-date, this device is replaced original bottom working roll, because its empty roller-way of crossing can carry out freely rolling by bearing block with empty mistake of rolled piece, thereby can effectively avoid rolled piece and roller-way to rub, not only guaranteed the rolled piece surface quality, but also reduced the roll maintenance cost, increased the performance of enterprises greatly.

Description of drawings

Fig. 1 is the normal structure cutaway view when rolling of the milling train of prior art;

Structure cutaway view when Fig. 2 is the milling train " dead roller empty cross " of prior art;

Fig. 3 is the empty structural representation of crossing roller arrangement of milling train of the present utility model;

Fig. 4 is an empty user mode schematic diagram of crossing roller arrangement of the present utility model.

The specific embodiment

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

Please in conjunction with Fig. 3, shown in Figure 4, milling train of the present utility model is empty to be crossed roller arrangement 10 and is located in the space of installation bottom working roll 5 of rolling-mill housing 1, comprises base 11, bearing block 12 and the empty roller-way 13 of crossing, and bearing block 12 is located at the both sides of base 11 upper ends respectively; The empty roller-way 13 of crossing is set up on the base 11, and the empty two ends of crossing roller-way 13 are located at respectively in the bearing block 12.Above-mentioned base 11 comprises between pair of base 111, two pedestals 111 being connected by connecting rod 112 and is integral; And bearing block 12 is by being bolted on the corresponding pedestal 111.The space of the installation bottom working roll 5 of the size of this pedestal 111 and frame 1 is suitable, and the bottom of two pedestals 111 all is provided with slide plate 113.The pedestal 111 that milling train is operated a side also is provided with gib head 114, thereby can make things convenient for this device 10 to advance or pull out frame 1 by gib head 114 by existing working roll mobile device on the milling train.In addition, also be respectively equipped with the locating piece 115 of pedestal 111 location usefulness at side two ends of this place's pedestal 111, when pedestal 111 advances in installation bottom working roll 5 spaces of frames 1, can lock by locating piece 115, thereby fix the axial location of this device 10 in frame 1.This sky is crossed roller-way 13 can be a free roller 131, also can be the free roller 131 of two height layouts, and be preferable (the free roller 131 shown in Fig. 3, Fig. 4 is two of height configuration) with two, thereby can effectively improve rolled piece 6 heads at a high speed by the time to the bump of free roller 131.The free rollers 131 that two height are arranged can rotate freely with the rolled piece 6 that sky is crossed by bearing block 12 respectively, can reduce greatly and rolled piece 6 between friction.This free roller 131 can adopt the less hollow-core construction of rotary inertia, and roll surface can adopt soft material to reduce rolled piece 6 surfaces to be scraped influence.In addition, this free roller 131 also can utilize the standby roller-way of existing transmission roller channel, thereby can improve usage ratio of equipment and inspection speed.And the height that higher one free roller 131 is provided with should with the identical or basically identical of roll surface height of bottom working roll 5.

The operation principle that this sky is crossed roller arrangement 10 is as follows: when fault that the roll transmission system of milling train occurs being difficult to get rid of for the moment, for allowing rolled piece 6 empty mistakes, earlier milling train is in dead ship condition, lift top working roll is high then, and then extract and change bottom working roll 5 out sky of the present utility model and cross roller arrangement 10, the upper surface that makes rolled piece 6 lower surfaces paste free roller 131 at last passes through, because free roller 131 can rotate freely with rolled piece 6 empty mistakes, therefore rolled piece 6 is neither rolled, can not wear and tear with free roller 131 yet, effectively guarantee the surface quality of rolled piece 6, also reduced the loss of bottom working roll 5.

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

1. the empty roller arrangement of crossing of a milling train, this device are located in the space of installation bottom working roll of rolling-mill housing, it is characterized in that:

This device comprises base, bearing block and the empty roller-way of crossing, and bearing block is located at the both sides of base upper end respectively; The empty roller bed frame of crossing is located on the base, and the empty two ends of crossing roller-way are located in the bearing block respectively.

2. the empty roller arrangement of crossing of milling train as claimed in claim 1 is characterized in that:

It is a free roller that described sky is crossed roller-way.

3. the empty roller arrangement of crossing of milling train as claimed in claim 1 is characterized in that:

4. the empty roller arrangement of crossing of milling train as claimed in claim 1 is characterized in that:

5. the empty roller arrangement of crossing of milling train as claimed in claim 4 is characterized in that:

The bottom of described pedestal is provided with slide plate.

6. the empty roller arrangement of crossing of milling train as claimed in claim 4 is characterized in that:

Described pedestal one side is provided with gib head.

7. the empty roller arrangement of crossing of milling train as claimed in claim 4 is characterized in that: