A method for overturning the roll box of a roll leveler to prevent pendants
A technology of straightening machine rolls and roll boxes, applied in the directions of load hanging elements, transportation and packaging, can solve problems such as hidden safety hazards, and achieve the effect of reducing additional requirements, eliminating safety risks, and solving pendant problems
Active Publication Date: 2020-03-27
BAOSHAN IRON & STEEL CO LTD
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- Description
- Claims
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Problems solved by technology
In many cases in the factory, the lifting capacity of the crane is close to the weight of the roller box, and a large margin will not be designed. This type of pendant has certain safety hazards
Method used
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Embodiment Construction
[0024] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0025] Please combine Figure 3 to Figure 6 As shown, a method for overturning the roller box of a roller leveler to prevent pendants provided by the present invention includes an overturning device, a suspension rope 4, and a crane 5, and the overturning device mainly includes a fixed frame 6 for the initial position of the roller box, Used to place the roll box 7, the rotating mechanism 8, the connection structure for turning over the roll box 7, the fixed frame 9 for the roll box flip position, used to place the roll box 7 after turning 180 degrees, and to fix the roll box flip The base frame 10 of the position fixing frame 9 is also connected with the rotating shaft 11 on the rotating mechanism 8, and the rotating mechanism 8 is also connected on the base frame 10 by the rotating shaft 11, and also includes the following s...
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The invention discloses an anti-falling roller type straightener roller box turnover method. According to the method, a rotating shaft of a turnover device of a roller box is designed to be a semi-constrained rotating mechanism which can move in the vertical direction, so that when the roller box is overturned by 90 degrees and the gravity center changes position, the tightening stress of a lifting rope is guaranteed through the displacement in the vertical direction of the rotating shaft, then the lifting rope can keep the constraint force to overturning of the roller box all the time, and then the situation that falling is caused due to the fact that the constraining force of the lifting rope to the roller box is lost in the position area is avoided. According to the method, the safety risk caused by falling in the roller box turnover process is eliminated, and meanwhile, the extra requirement for the lifting carrying weight of a crane caused by falling in the turnover operation of the roller box is also reduced.
Description
technical field [0001] The invention relates to the overturning process of a roller leveler, and more specifically, relates to a method for overturning a roll box of a roller leveler to prevent pendants. Background technique [0002] The upper roll box of the roll leveler generally needs to be turned over for maintenance. According to the size of the roll diameter, the weight of the upper roll box of the roll leveler in the hot rolling mill is generally 10-30 tons. During the turning process, a special turning device should be used for 180 turn over. Existing roll box turning device mainly contains following two types: [0003] One is to turn over by being equipped with a reduction box and driven by a motor or a manual wheel. This type of device is generally convenient to use, but has the disadvantages of high cost and large floor space. For example, the patent application No. ZL201410408366.2 and ZL201420468031.5 provide a "multi-roll leveler upper roll box flipping devic...
Claims
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IPC IPC(8): B66C1/16B66C13/08
CPCB66C1/16B66C13/08
Inventor 刘涛陈良吴祖国
Owner BAOSHAN IRON & STEEL CO LTD