Floating pressure block type friction energy absorber for catcher

Abstract

The invention provides a floating pressure block type friction energy absorber for a catcher. The floating pressure block type friction energy absorber comprises a base body which is formed by a top plate, a bottom plate, a vertical plate and an assistant plate; an adjusting pressure block and a fixed pressure block are respectively assembled on the guiding bulges on the upper end and the lower end of the vertical plate; a floating pressure block is movably arranged on the vertical plate between the adjusting pressure block and the fixed pressure plate; two rope winding columns are arranged and respectively assembled on the upper end and the lower end of the vertical plate at two sides of the floating pressure block; a transition pressure plate is arranged between the top plate and the adjusting pressure block; a pressure adjusting bolt is arranged on the top plate; the pressure adjusting bolt is closely butted to the transition pressure plate; and a steel rope enters from an entrance at the lower end of the assistant plate, winds one of the rope winding columns after passing through the floating pressure block or the fixed pressure block, winds the other of the rope winding columns again after passing through the floating pressure block, penetrates through the adjusting pressure block or the floating pressure block, and penetrates out from an exit on the upper end of the assistant plate. The floating pressure block type friction energy absorber provided by the invention has the characteristics of simple structure, strong operability, stability for buffering and high practical value.

Description

technical field [0001] The invention relates to the technical field of mining machinery and equipment, in particular to a floating briquetting type frictional energy absorber for an anti-sports car. Background technique [0002] Most of the existing mines still use mining vehicles to lift resources to the ground using lifting equipment. However, in the lifting process, if the rope breaks or the hook fails, a sports car will appear, causing serious damage to the roadway and equipment, and seriously affecting the personal safety of underground operators. Therefore, the national regulations expressly stipulate that the normally closed sports car protection device of "one slope and three gears" should be adopted for inclined lane transportation. [0003] The main solution to this problem is at present: the first option is to use a pressure plate type energy absorber to press down the steel wire rope by multiple pressure plates, and consume the kinetic energy of the train train ...

AI Technical Summary

Problems solved by technology

The second solution is to use a friction plate type energy absorber to consume the kinetic energy of the tandem through the mutual friction between multiple dynamic and static friction plates.

[0004] The disadvantages of the above-mentioned first scheme are: ①This structure uses multiple pressing plates to hold down the steel wire rope. Since each pressing plate uses 10 bolts to compress, not only the resistance value formed on each pressing plate is different, but also the resistance value formed on the same pressing plate is different. The friction force of the steel wire rope is not the same; ②Since the pressure of the steel wire rope on each pressure plate has been determined to a certain value, it will not change due to the change of the tension of the steel wire rope by the string train group, so that the service life of the entire energy absorber and steel wire rope is reduced. ;③ After the pressure plate is worn, due to the different wear degree of each rope groove, in the future application process, the friction force difference of each wire rope will become larger and larger

[0005] The disadvantages of the above-mentioned second solution are: ① the structure is complex, large in size and heavy in weight, about 500kg, and the manufacturing cost is high; ② a large spring is required as the source of pressure between the dynamic and static friction plates Generally speaking, the diameter of the spring is about 40mm, and its pressure is about 8T; ③In the assembly process of the energy absorber, special equipment is needed to compress the spring force to install, and the investment is high; Due to its own environmental conditions and high labor intensity, it is easy to cause safety accidents, time-consuming and labor-intensive

[0006] The shortcoming of above-mentioned third scheme is: 1. this structure is complicated, and volume is bigger, and weight is big, and can not be lighter than second scheme, and manufacturing cost is high; Small, but after braking, due to the use of compression springs, the spring force will increase with the increase of the resistance value. When the resistance value is large, under the action of the spring force, there is no special equipment or tooling for resuming production. It is impossible to open, resulting in a too long period when resuming production, affecting normal production operations

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