CN202438549U

CN202438549U - Auxiliary dismounting tooling for machine frame roll overhaul taper key of rough mill

Info

Publication number: CN202438549U
Application number: CN2012200734529U
Authority: CN
Inventors: 徐安强; 陈东升; 彭元兵; 柳岸; 伍宏
Original assignee: Chongqing Iron and Steel Group Co Ltd
Current assignee: Chongqing Iron and Steel Group Co Ltd
Priority date: 2012-03-01
Filing date: 2012-03-01
Publication date: 2012-09-19
Anticipated expiration: 2022-03-01

Abstract

The utility model discloses an auxiliary dismounting tooling for a machine frame roll overhaul taper key of a rough mill, which is characterized by comprises a push-pull trolley. The push-pull trolley comprises a rectangular plate-shaped trolley frame and trolley wheels positioned under the trolley frame, wherein the trolleys are matched with a working roll exchange rail of the rough mill. Two rows of columns are positioned above the trolley frame of the push-pull trolley along the width direction, each row of the columns comprises a high column and a short column, the two rows of the columns are opposite in the length direction, the lower end of each column is provided with a boss for connecting, the columns penetrate through the bosses through bolts to be fixed on the trolley frame, guide strips are fixedly connected with two columns along the width direction of the trolley frame of the push-pull trolley, one ends of the guide strips at the high positions extend out of the trolley frame, and the upper surfaces of the guide strips are provided with guide grooves for the taper key to slide in the guide grooves. The auxiliary dismounting tooling can dismount the taper key conveniently and quickly and reduces labor strength.

Description

A kind of roughing mill breast roll maintenance wedge key is removed auxiliary mould

Technical field

The utility model relates to a kind of roughing mill breast roll maintenance frock, and especially a kind of roughing mill breast roll maintenance wedge key is removed auxiliary mould.

Background technology

In steel rolling mill, roughing mill is the equipment that is used for continuous casting billet is rolled down to desired intermediate blank thickness.The breast roll of roughing mill is loaded on going into, exporting of roughing mill, each one, is used for supplementary mill work.During work, and work roll table is sent into steel billet in relative rotation together and is rolled between the upper working rolls and lower working rolls roll gap before and after the milling train.Because the breast roll working environment is more abominable, under the environment of the high pressure dephosphorization water of the high temperature about 1100 ℃ and 16MPa, to work for a long time, the erosion of high temperature and steam is prone to cause breast roll, especially the damage of bearing.Simultaneously, during production, breast roll can frequently be clashed in band steel toe portion, makes bearing receive radial impact load, and failure-frequency is higher.The drift of fixed frame roller, Yin Gaowen and moisture attacks bolt easy-to-rust are difficult to remove.When removing breast roll, generally be to disassemble together with bearing block that is fixed on the breast roll both sides and guide and guard mechanism.About 21 tons of the weight of breast roll and bearing block and guide and guard mechanism, volume is bigger.And breast roll is assemblied between the roughing mill memorial archway, and the site examining and repairing space is narrower, and maximum space for maintenance has only about 680mm.So site examining and repairing is inconvenient, it is long and influence is produced to cause overhauling the off-time.Simultaneously, the irregular contour of guide and guard mechanism also causes the hanging apparatus (referring to guide and guard on the roughing mill) can only be with the breast roll that disassembles together with the guide and guard mechanism a bit of height of slinging, and directly overhaul at the scene of hanging; So can't adopt and change the mode of maintenance more earlier.

In order to address the above problem, the applicant had once designed a kind of roughing mill breast roll maintenance frock of lifting for convenience detach, can improve the replacing inspection speed, reduced labour intensity.When this maintenance frock is used; Be earlier breast roll to be unclamped from the roughing mill dismounting together with the bearing block and the guide and guard mechanism integral body at two ends; Through this frock breast roll is transported to the mill housing outside together with the bearing block and the guide and guard mechanism integral body at two ends then, overhauls and change.Wherein, with breast roll integral body from the process that roughing mill disassembles, need earlier the wedge key of fixed frame roll bearing seat to be removed.Owing to wedge tightlyer when wedge key is installed, the withdrawal space is narrow and small simultaneously, so usual manner can't be realized the direct dismounting of wedge key quickly and easily.

The utility model content

To the deficiency of prior art, the utility model technical problem to be solved is how to provide a kind of wedge key of can realizing quickly and easily to remove, the roughing mill breast roll maintenance wedge key dismounting auxiliary mould of reduction labour intensity.

In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:

A kind of roughing mill breast roll maintenance wedge key is removed auxiliary mould, and its characteristics are, comprise the push-and-pull dolly, and said push-and-pull dolly comprises the vehicle frame and the wheel that is positioned at the vehicle frame below, wheel and roughing mill work roll changing Orbit Matching of cuboid plate shape; Said push-and-pull car frame top broad ways is provided with two row's columns; Two of every row's one high and one low; Two row's columns are relative along its length, and every root post lower end has the boss that is used to connect and passes boss by bolt makes column be fixed in vehicle frame, are connected with gib block along two column upper fixed of push-and-pull car frame width; One end of gib block eminence extends vehicle frame, and the gib block upper surface has the gathering sill that supplies wedge key to slide within it.

When this auxiliary mould uses; Also need be equipped with lifting bolt, bottle gouard moved by hands to realize dismounting; During concrete the dismounting, with driving frock is winched on the roughing mill work roll changing track earlier, with the roughing mill roll change buggy push-and-pull dolly is pushed into the maintenance position in the roughing mill memorial archway again.An end that makes gib block extend vehicle frame is positioned at place, wedge key position; The artificial connecting bolt of removing on the wedge key; Lifting bolt is twisted on roughing mill inlet/outlet breast roll homonymy wedge key; The bottle gouard moved by hands hook links to each other with two suspension ring, starts bottle gouard moved by hands and by force extracts and drop to the gathering sill of gib block in from the wedge key groove wedge key; Along gathering sill wedge key is pulled out then and get final product.

Wherein, the frock of the utility model makes things convenient for through the bottle gouard moved by hands application of force to extract wedge key; After extracting, wedge key also can pull out along the gathering sill of gib block; The elsewhere of avoiding dropping is difficult to take out or bump, so dismantle very conveniently and quick and smooth and easy, has avoided makeing mistakes.

In sum, the utility model can be realized the wedge key dismounting quickly and easily, has reduced labour intensity.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the left view of Fig. 1.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to specify.

As depicted in figs. 1 and 2, a kind of roughing mill breast roll maintenance wedge key is removed auxiliary mould, comprises the push-and-pull dolly, and said push-and-pull dolly comprises the vehicle frame 4 and the wheel 5 that is positioned at vehicle frame 4 belows of cuboid plate shape, wheel 5 and roughing mill work roll changing Orbit Matching; Said push-and-pull car frame 4 top broad ways are provided with two row's columns 1; Two of every row's one high and one low; Two row's columns are relative along its length, and every root post 1 lower end has the boss that is used to connect 2 and passes boss 2 by bolt makes column 1 be fixed in vehicle frame 4, are connected with gib block 3 along two columns, 1 upper fixed of push-and-pull car frame width; One end of gib block 3 eminences extends vehicle frame, and gib block 3 upper surfaces have the gathering sill that supplies wedge key to slide within it.

Claims

1. a roughing mill breast roll maintenance wedge key is removed auxiliary mould, it is characterized in that, comprises the push-and-pull dolly, and said push-and-pull dolly comprises the vehicle frame and the wheel that is positioned at the vehicle frame below, wheel and roughing mill work roll changing Orbit Matching of cuboid plate shape; Said push-and-pull car frame top broad ways is provided with two row's columns; Two of every row's one high and one low; Two row's columns are relative along its length, and every root post lower end has the boss that is used to connect and passes boss by bolt makes column be fixed in vehicle frame, are connected with gib block along two column upper fixed of push-and-pull car frame width; One end of gib block eminence extends vehicle frame, and the gib block upper surface has the gathering sill that supplies wedge key to slide within it.