High-voltage slide shoe for excavators

Abstract

The invention discloses a high-voltage slide shoe for excavators, which relates to a mechanical excavator. The invention solves the problems of the conventional high-voltage slide shoe for excavators, including short service life and poor high-voltage electricity transmission reliability. The high-voltage slide shoe is characterized in that: an upper linking part (2) is a special-shaped sliding pin (2-1), the upper part of which is a square guide rod and the lower part of which is a round end, a lower linking part (6) is a round guide pipe (6-1), the upper part of the guide pipe (6-1) is integrated with a special-shaped guide cap (5), the inner square hole of the special-shaped guide cap (5) is matched with the upper square guide rod of the special-shaped sliding pin (2-1) in a sliding manner, and the inner round hole of the round guide pipe (6-1) is matched with the lower round end of the special-shaped sliding pin (2-1) in a sliding manner. The high-voltage slide shoe can transmit high-voltage electricity less than 10000V, and can provide safe and reliable power supply.

Description

technical field [0001] The invention relates to a mechanical excavator, in particular to a high-voltage electric transmission device for the excavator. Background technique [0002] The high-voltage shoe is a device that transmits the high-voltage cable fixed on the ground to the rotatable excavator. It is located between the fixed underframe beam of the excavator and the slewing platform, and is a key component for transmitting high-voltage electricity to the equipment. [0003] At present, the structure of high-pressure slide shoes for excavators is two special-shaped steel pipes with different diameters, such as figure 1 , figure 2 , image 3 As shown: the lower link 6 is a special-shaped steel pipe connected to the fixed chassis 7 through an insulating support 8, the upper link 2 is a special-shaped steel pipe connected to the sliding shoe 1, and the sliding shoe 1 and the slip ring 11 at the lower part of the moving platform perform relative motion. At the same time...

AI Technical Summary

Problems solved by technology

Due to the limitation of the structure and the precision of the special-shaped tube itself, there are two problems for the normal movement of the sliding shoe. One is that the sliding shoe swings relatively large, and the other is that the insertion part is relatively limited. When the sliding shoe is worn to a certain extent, the insertion The special-shaped steel pipe is easy to fall off, causing the whole machine to break the circuit, and the sliding boots fall at the same time, which is easy to cause a fire. In severe cases, the whole excavator may be electrified, causing personal casualties

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