A cable motor system

Abstract

The invention discloses a coil cable motor system. Through being equipped with an unloading valve, the coil cable motor system has an improvement on the unloading capability, and avoids power loss and system heat generation caused by inability of unloading; through being equipped with an accumulator, the coil cable motor system can keep pressure and maintain the unloading state of the unloading valve; and when a shuttle car starts, high-pressure oil in the accumulator can be rapidly released and supplied to the system, the starting speed of a cable drum is greatly improved, and further the phenomena that a cable is pressed by a wheel and even damaged due to slower car starting are reduced.

Description

technical field [0001] The invention relates to the technical field of downhole operation equipment, in particular to a cable winding motor system. Background technique [0002] In the current underground operation process, the shuttle car is a relatively common short-distance coal transport vehicle. This kind of shuttle car is driven by electric power transmitted by cables and can drive in both directions. In the working state, one end of the cable is fixed, and the other end is connected to the cable drum of the shuttle car. The cable drum is driven by the cable winding motor. The cable motor automatically winds up the cable. [0003] Please refer to figure 1 , figure 1 It is a hydraulic schematic diagram of a typical coiling motor system in the prior art under the cable-winding working condition. [0004] At present, the existing automatic cable winding motor system usually includes a cable winding motor 11, an overflow valve 12, a one-way valve 13, a two-position fou...

AI Technical Summary

Problems solved by technology

[0007] However, although the above-mentioned existing cable winding motor system can meet the needs of basic cable winding and cable unwinding conditions, when the shuttle car stops running or advances to unwind the cable, the oil output from the oil pump will flow back through the high-pressure relief valve. To the fuel tank, causing unnecessary power loss, and making the relevant components of the hydraulic system heat, affecting the service life of the hydraulic components

At the same time, the start of the cable drum is slow. When the shuttle car is just started, the speed of the cable drum is lower than the speed of the shuttle car, and it is easy to press the cable and even cause damage to the cable.

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