Explosion proof type mining double-anchor cable automatic blanking machine

Abstract

The invention discloses an explosion proof type mining double-anchor cable automatic blanking machine. The automatic blanking machine comprises a pay-off reel, a traction system, a cutting system, a discharge system and a pay-off reel brake which is matched with the pay-off reel, wherein the pay-off reel, the traction system, the cutting system, the discharge system and the pay-off reel brake are communicated with an electric control, pneumatic control and hydraulic control system and are sequentially connected by anchor cables; two pay-off reels and two pay-off reel brakes are provided; the axes of the two pay-off reels are vertical to a level; the traction system is driven by a hydraulic speed reducing motor; the cutting of the anchor cables is realized by a water jetting sprayer which is connected with a high pressure water pump and an abrasive tank; a baffle starting device of the discharge system is driven by a discharge cylinder; the length of a to-be-blanked anchor cable is limited by an explosion proof travel switch. The automatic blanking machine disclosed by the invention can perform the blanking works to two anchor cables at the same time, and the production efficiency is high; the traction, cutting and discharge of the anchor can be realized automatically, the blanking machine can be operated by single person, and the labor intensity is low; the automatic blanking machine further has the advantages of compact structure, small space usage, high safety, easy and convenient operation and maintaining and the like, and can be used for the blanking work of underground anchor cables of a coal mine.

Description

technical field [0001] The invention belongs to the field of anchor cable cutting equipment for mine shaft and roadway support, and in particular relates to an explosion-proof mine double anchor cable automatic cutting machine. Background technique [0002] Anchor cables, commonly known as steel strands, are twisted from multiple high-strength steel wires. They are mostly used in engineering parts that have been deformed or have strict deformation requirements in civil engineering or coal mine underground operations. With the advantages of large length, flexibility, high bearing capacity, convenient transportation and early load bearing, it has become the main method of coal mine roadway support. Before the anchor cable is installed, it is necessary to ensure that each steel strand is straight, not twisted or crossed, and arranged evenly, and the rust and oil are removed. The anchor cables with dead bends, mechanical damage and rust pits must be removed. An anchor cable ten...

AI Technical Summary

Problems solved by technology

Due to the extremely high hardness of the steel strand (1860MPa), not only the consumption of the saw blade is very large, but also the cutting speed is slow and the production efficiency is low; at the same time, a large amount of dust and toxic gas generated by cutting will damage the health of workers and seriously pollute the environment

In addition, the equipment required by the existing technology can only place a coil of steel strands, and saw and cut one anchor cable at a time, so the production efficiency is low

China's invention patent application "Automatic Unloading Method and Equipment for Steel Strand Anchor Cable" (Application No.: 201210526400.7) provides a method of producing steel strands using double-disc racks, eddy current local heating of steel strands, and hydraulic shearing The automatic feeding method and equipment for wire and anchor cables. This technical scheme can improve the production efficiency of anchor cable blanking and avoid dust pollution. However, there are still problems in this technical scheme in practice: due to the rotation of the two steel strand coils The axis is arranged horizontally up and down, which is not only inconvenient to install the anchor cable (steel strand), but also the axial displacement (horizontal displacement) along the steel strand coil frame during the anchor cable pay-off process changes greatly; it needs to be used when unloading. The eddy current heater locally heats the anchor cable; cutting the anchor cable with a hydraulic shear is easy to deform or scatter the head of the anchor cable, which makes it impossible to cooperate with the supporting plate, anchorage and tension jack during installation

In addition, the technical solutions described in the above patents are not suitable for use in coal mines, do not have the characteristics of explosion-proof, and cannot meet the requirements of the anchor cable cutting operation in coal mines

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