Steel wire rope groove-releasing protection device and mounting method thereof

Abstract

The invention discloses a steel wire rope groove-releasing protection device and a mounting method, belonging to the field of engineering machinery. The protection device comprises a rope baffle and connection plates located at the two sides of the rope baffle, wherein the connection plates are fixed at the two ends of a round shaft provided with a pulley block. The protection device is characterized in that the rope baffle is a framework type baffle cover composed of two connection rods and a plurality of arc-shaped rods fixed between the two connection rods, and is matched with the pulleys in shape; the protection device further comprises assembling plates located on the outer sides of the connection plates; the shapes of the assembling plates are adaptive to the shapes of the arc-shaped rods; the two ends of the assembling plates are connected with stretching-out ends of the connection rods; and the middle parts of the assembling plates are connected with the connection plates fixed on the round shaft. The protection device has the advantages of simple structure, convenience in assembling and the like.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a wire rope de-groove protection device and an installation method thereof. Background technique [0002] The dynamic compaction machine is a kind of construction machinery with high working frequency and large vibration amplitude. The wire rope de-grooving protection device outside the lifting pulley block of the dynamic tamping machine is mainly based on the protection form of the crawler crane. Such as figure 1 As shown, two steel pipes parallel to each other are fixed on the arm head of the dynamic tamping machine through pin shafts. Although this kind of wire rope de-grooving protection device has a simple structure, it is easily deformed under force. When the dynamic tamping machine rams, the vehicle body will shake violently, and the steel wire rope will continuously rebound and swing upwards to directly damage the protective device outside the pulley block, eventual...

AI Technical Summary

Problems solved by technology

[0004] Although this protective device can prevent the wire rope from falling out of the groove, it also has many problems.

First, it is difficult to guarantee the size of the rope retaining structure after welding

Due to the large welding deformation of the thin plate parts, the gap between the adjacent thin plate parts after welding and the design size error are relatively large. As a result, the thin plate cannot be inserted into the gap between the pulley and the pulley, but directly touches the pulley, resulting in failure to assemble. Even the entire rope stop was scrapped

Second, when assembling, there is a problem of interference between the rope block and the pulley block

like figure 2 As shown, the gantry connecting plate welded on the arm head is located on the outside of the welding plate, and its external dimension is much larger than that of the inner welding plate. As a result, the round holes at both ends of the welding plate must be processed before assembly, and it cannot be assembled with the pulley block during installation. If the large holes are processed together, the relative distance between the large holes and the round holes at both ends of the welded plate may increase or decrease. If the relative distance becomes smaller, it will cause interference between the lifting pulley block and the round steel, resulting in assembly interference

Third, the number of bolt holes is too large, and the round holes on the thin plates on both sides of the rope retainer are easily deformed after welding, resulting in not all bolt holes being aligned and assembled

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