CN201669278U

CN201669278U - Fastening device for tension bolt of heavy plate mill

Info

Publication number: CN201669278U
Application number: CN201020117090XU
Authority: CN
Inventors: 丁海绍; 张建军; 顾振华
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd; Baosteel Group Corp
Priority date: 2010-02-23
Filing date: 2010-02-23
Publication date: 2010-12-15
Anticipated expiration: 2020-02-23

Abstract

The utility model discloses a fastening device for a tension bolt of a heavy plate mill, which comprises a fixing nut arranged at one end of the tension bolt and a fastener. The fastener is a nut fixing sleeve fixed on a rolling mill. The fixing nut is embedded into one end of the nut fixing sleeve and fixedly connected with the nut fixing sleeve. As the fastener uses the nut fixing sleeve, the fixing nut is limited to move in which direction. When the frame roller is replaced, the fixing nut does not fall off due to the extraction of the tension bolt and a complete set of the CVC device does not need to be assembled and disassembled, therefore, the operation is convenient.

Description

The fastener of heavy plate mill turnbuckle

Technical field

The utility model relates to the replacing technology of heavy plate mill mid frame roller, more particularly relates to a kind of fastener of heavy plate mill turnbuckle.

Background technology

In the process of rolled plate, all kinds of heavy plate mills are one of the most frequently used equipment.All designed in the inside of heavy plate mill be used for rolled plate to milling train carry, output and the breast roll that supports, but because the whole operation of rolling is carried out in high temperature, therefore water, vapour iron scale are a lot, also will withstand shocks load and frequent rotating of breast roll simultaneously, breast roll just needs the periodic replacement maintenance like this.But when changing breast roll, must remove the turnbuckle that passes mill housing one skew back pressing plate, can leave in conjunction with Fig. 1, the fixing of turnbuckle 4 then is to finish by the hold-down nut 1 that is positioned at mill housing 3 opposite sides, two retainingf keys 2 that adopt horizontal direction between hold-down nut 1 and mill housing 3 are in order to locking fixing, because the only rotation of hold-down nut on the nut direction of rotation of retainingf key 2, but can not stop moving forward and backward up and down of hold-down nut 1, when therefore changing breast roll, can hold-down nut 1 be fallen down because of the extraction of turnbuckle 4, so must remove a whole set of CVC device (CVC is the control of continuous variable roll crown) in hold-down nut 1 outside when changing breast roll at every turn, hold-down nut 1 could be resetted, make change breast roll very loaded down with trivial details that become.

The utility model content

The problem that must remove a whole set of CVC device during at the replacing breast roll that exists in the prior art, the purpose of this utility model provides a kind of fastener of heavy plate mill turnbuckle, can needn't remove the CVC device when changing breast roll.

To achieve these goals, the utility model adopts following technical scheme:

A kind of fastener of heavy plate mill turnbuckle, comprise hold-down nut and the secure component of being located at turnbuckle one end, described secure component is the nut fixed cover that is fixed on the mill housing, an end of described hold-down nut inserted num fixed cover, and be connected and fixed with the nut fixed cover.

Described fastener also comprises set bolt, and set bolt is located at the both sides of nut fixed cover, and the nut fixed cover is fixed by set bolt and mill housing.

Described fastener also comprises plain washer, and plain washer is located in the hold-down nut nut outside fixed cover, the shape of nut fixed cover one end and plain washer outer shape coupling.

Compared with prior art, adopt the fastener of a kind of heavy plate mill turnbuckle of the utility model, comprise hold-down nut and the secure component of being located at turnbuckle one end, described secure component is the nut fixed cover that is fixed on the mill housing, one end of described hold-down nut inserted num fixed cover, and be connected and fixed with the nut fixed cover.Because secure component has adopted the nut fixed cover, can limit moving of hold-down nut direction how like this, therefore when changing breast roll, hold-down nut can not drop because of the extraction of turnbuckle, just do not need the CVC device of demolition, installation the whole series yet, very convenient.

Description of drawings

Fig. 1 is the structural representation of turnbuckle fastening means in the prior art;

Fig. 2 is the structural representation of the fastener of heavy plate mill turnbuckle of the present utility model;

Fig. 3 is the structure for amplifying schematic diagram of Fig. 2 secure component.

The specific embodiment

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

See also the fastener 10 of Fig. 2, a kind of heavy plate mill turnbuckle shown in Figure 3, comprise hold-down nut 11 and the secure component 12 of being located at turnbuckle 21 1 ends, secure component 12 is for being fixed on the nut fixed cover on the mill housing 20, one end of hold-down nut 11 inserted num fixed covers, and be connected and fixed with the nut fixed cover.Fastener 10 also comprises set bolt 13, and set bolt 13 is located at the both sides of nut fixed cover, and the nut fixed cover is fixing with mill housing 20 by set bolt 13.Fastener 10 also comprises plain washer 14, and plain washer 14 is located in the hold-down nut 11 nut outside fixed covers, the shape of nut fixed cover one end and plain washer 14 outer shape coupling.

During use, at first hold-down nut 11 and plain washer 14 are put into the nut fixed cover, utilize two set bolts 13 to be fixed on the mill housing 20 this assembly; Coat seizureproof agent at the screw head of turnbuckle 21 then, pierce into and be screwed into the hold-down nut 11, carry out fastening in memorial archway mill housing 20 inboards to this turnbuckle 21 then from mill housing 20 inboards.When changing breast roll 23, remove turnbuckle 21 like this and just need not remove a whole set of CVC device 22 in mill housing 20 outsides with time dress turnbuckle 21.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.

Claims

1. the fastener of a heavy plate mill turnbuckle comprises hold-down nut and the secure component of being located at turnbuckle one end, it is characterized in that,

Described secure component is the nut fixed cover that is fixed on the mill housing, an end of described hold-down nut inserted num fixed cover, and be connected and fixed with the nut fixed cover.

2. fastener as claimed in claim 1 is characterized in that,

3. fastener as claimed in claim 1 or 2 is characterized in that,