CN203044512U

CN203044512U - Upper supporting roll changing device of four-roller and six-roller mill

Info

Publication number: CN203044512U
Application number: CN 201220679196
Authority: CN
Inventors: 康振超; 王军
Original assignee: HEBEI BAOSHENG ENGINEERING TECHNOLOGY Co Ltd
Current assignee: HEBEI BAOSHENG ENGINEERING TECHNOLOGY Co Ltd
Priority date: 2012-12-11
Filing date: 2012-12-11
Publication date: 2013-07-10
Anticipated expiration: 2022-12-11

Abstract

The utility model relates to an upper supporting roll changing device of a four-roller and six-roller mill. The upper supporting roll changing device comprises a roll changing vehicle and a roll changing big hydro-cylinder which is arranged behind the roll changing vehicle, the movable end of the front portion of the roll changing big hydro-cylinder is connected with the tail portion of the roll changing vehicle, a plurality of layers of working roll changing rails are arranged on the roll changing vehicle, working roll idler wheels are arranged on each working roll, and the working roll idler wheels are arranged in a working roll built-in rail. The upper supporting roll changing device further comprises an upper supporting roll changing rail, a towing hydro-cylinder, a towing frame, upper supporting roll idler wheels and claw hooks. The upper supporting roll idler wheels are arranged on an upper supporting roll and abut against an upper supporting roll built-in rail, the towing hydro-cylinder is arranged on the roll changing vehicle, the movable end of the front portion of the towing hydro-cylinder is connected with the towing frame, and the front end of the towing frame is provided with a plurality of the claw hooks. According to the technical scheme, roll changing time of supporting rolls can be greatly shortened, and the fact that the upper supporting roll can be changed independently or can be changed simultaneously with the working roll is achieved.

Description

Four rollers and six-high cluster mill top backing up roll changing rig

Technical field

The utility model relates to a kind of roller system of rolling mill changing rig, particularly relates to a kind of four rollers and six-high cluster mill top backing up roll changing rig.

Background technology

In the prior art, the roller of tradition milling train is changing rig, when replacing with backing roll, need to extract out earlier working roll and intermediate calender rolls, extract the lower support roller then out, place on the bracing frame at top backing up roll, again the lower support roller is sent into frame with bracing frame, top backing up roll is dropped on the bracing frame, at last upper and lower backing roll is extracted out together with bracing frame; When pushing new upper support roller, with the said process contrary operation, top backing up roll roll change complexity in the prior art, roll changing time is long.

The utility model content

In view of this, main purpose of the present utility model is to provide a kind of four rollers and six-high cluster mill top backing up roll changing rig, pass through the technical program, with traditional roll-changing method contrast, can shorten the roll changing time of backing roll significantly, and realize the independent roll change of upper support roller, perhaps with working roll roll change simultaneously.

In order to achieve the above object, the technical solution of the utility model is achieved in that a kind of four rollers and six-high cluster mill top backing up roll changing rig, include roll changing carriage and roll change large tank, the rear of described roll changing carriage is provided with the roll change large tank, the anterior movable end of described roll change large tank links to each other with the afterbody of roll changing carriage, roll changing carriage is provided with several layers of work roll changing track, each working roll is provided with the working roll roller, described working roll roller is arranged on the working roll machine inner orbit, also include top backing up roll roll change track, drawing oil cylinder, hitch frame, top backing up roll roller and grapple, described top backing up roll is provided with the top backing up roll roller, described top backing up roll roller is pressed on the top backing up roll machine inner orbit, described drawing oil cylinder is arranged on the roll changing carriage, the anterior movable end of drawing oil cylinder links to each other with hitch frame, and the front end of described hitch frame is provided with several grapples.

The bottom of described roll changing carriage is provided with the roll changing carriage roller.

Beneficial effect after the employing technique scheme is: a kind of four rollers and six-high cluster mill top backing up roll changing rig, at frame indoor design upper support roller machine inner orbit; During roll change, roll changing carriage moves forward to the operating position and carries out the roll change of upper support roller; By the technical program, can shorten the roll changing time of backing roll significantly, and realize the independent roll change of upper support roller, perhaps with working roll roll change simultaneously.

Description of drawings

Fig. 1 is working state figure of the present utility model.

Fig. 2 pulls out state diagram for roll change of the present utility model.

Fig. 3 is the cross-sectional view of Fig. 2.

Among the figure, 1 roll changing carriage, 2 roll change large tanks, 3 work roll changing tracks, 4 working rolls, 5 working roll rollers, 6 working roll machine inner orbits, 7 top backing up roll roll change tracks, 8 drawing oil cylinder, 9 hitch frames, 10 top backing up roll rollers, 11 grapples, 12 tops backing up roll, 13 top backing up roll machine inner orbits, 14 roll changing carriage rollers.

The specific embodiment

Below in conjunction with accompanying drawing specific embodiment in the utility model is described in further detail.

As shown in Figure 1-Figure 3, four rollers that the utility model relates to and six-high cluster mill top backing up roll changing rig, include roll changing carriage 1 and roll change large tank 2, the rear of described roll changing carriage 1 is provided with roll change large tank 2, the anterior movable end of described roll change large tank 2 links to each other with the afterbody of roll changing carriage 1, roll changing carriage 1 is provided with several layers of work roll changing track 3, each working roll 4 is provided with working roll roller 5, described working roll roller 5 is arranged on the working roll machine inner orbit 6, also include top backing up roll roll change track 7, drawing oil cylinder 8, hitch frame 9, top backing up roll roller 10 and grapple 11, described top backing up roll 12 is provided with top backing up roll roller 10, described top backing up roll roller 10 is pressed on the top backing up roll machine inner orbit 13, described drawing oil cylinder 8 is arranged on the roll changing carriage 1, the anterior movable end of drawing oil cylinder 8 links to each other with hitch frame 9, and the front end of described hitch frame 9 is provided with several grapples 11.

The bottom of described roll changing carriage 1 is provided with roll changing carriage roller 14.

The utility model is when the roll change work of carrying out working roll 4, by roll change large tank 2 roll changing carriage 1 is pushed by the milling train, drawing oil cylinder 8 work are stretched out forward, the hitch frame 9 that is positioned at drawing oil cylinder 8 front portions drives grapple 11 reaches and catches top backing up roll 12 or working roll 4, drawing oil cylinder 8 is regained, top backing up roll 12 and working roll 4 are pulled out, and move on the roll changing carriage 1 on the corresponding upper support roll change track 7 and work roll changing track 3 through the top backing up roll roller 10 on top backing up roll 12 and the working roll 4 and working roll roller 5 respectively, by crane top backing up roll 12 and working roll 4 are changed, changing back time dress is the inverse process of the above-mentioned course of work, operation principle is identical, gives unnecessary details no longer in detail at this.

The above only is preferable possible embodiments of the present utility model, is not in order to limit scope of the present utility model.

Claims

1. a roller and six-high cluster mill top backing up roll changing rig, include roll changing carriage and roll change large tank, the rear of described roll changing carriage is provided with the roll change large tank, the anterior movable end of described roll change large tank links to each other with the afterbody of roll changing carriage, roll changing carriage is provided with several layers of work roll changing track, each working roll is provided with the working roll roller, described working roll roller is arranged on the working roll machine inner orbit, it is characterized in that, also include top backing up roll roll change track, drawing oil cylinder, hitch frame, top backing up roll roller and grapple, described top backing up roll is provided with the top backing up roll roller, described top backing up roll roller is pressed on the top backing up roll machine inner orbit, described drawing oil cylinder is arranged on the roll changing carriage, and the anterior movable end of drawing oil cylinder links to each other with hitch frame, and the front end of described hitch frame is provided with several grapples.

2. four rollers according to claim 1 and six-high cluster mill top backing up roll changing rig is characterized in that the bottom of described roll changing carriage is provided with the roll changing carriage roller.