Mining excavator pushing and pressing device and mining excavator

Abstract

The invention discloses a mining excavator pushing and pressing device and a mining excavator. The pushing and pressing device comprises a coaxial gear motor, a first chain wheel, a chain, a second chain wheel, a pushing and pressing shaft and a pushing and pressing gear, wherein the coaxial gear motor is fixedly installed on the mining excavator, the first chain wheel is installed at the output end of the coaxial gear motor and is in transmission connection with the second chain wheel through the chain, the second chain wheel is installed on the pushing and pressing shaft, the pushing and pressing shaft is installed on a cargo boom of the mining excavator, the pushing and pressing gear is installed on the pushing and pressing shaft, and the pushing and pressing gear meshes with a rack on a bucket rod of the mining excavator. According to the mining excavator pushing and pressing device and the mining excavator, by arranging the coaxial gear motor, the structure can be simplified, and the occupied space can be reduced, meanwhile, a chain transmission mode is adopted, higher buffering and vibration reduction performance and transmission efficiency are achieved, the average transmission ratio is accurate, the structure size is more compact, the occupied space is small, and maintenance is convenient.

Description

technical field [0001] The invention relates to the technical field of mining excavators, in particular to a mining excavator pushing device and a mining excavator. Background technique [0002] Mechanical front shovel excavator, also known as mining excavator, is a special equipment used for open-pit mining. Existing mining excavators mainly include slewing platform, A-frame, boom, stick , buckets, pushing devices, lifting devices, guy ropes and lifting wire ropes, etc. [0003] The Chinese patent document whose publication number is CN109706990A and whose invention name is "Working Mechanism of Mining Excavator and Mining Excavator" specifically discloses a pushing mechanism of a mining excavator and a mining excavator, and the pushing mechanism of a mining excavator Including: push reducer, push shaft, push gear, push motor and belt, etc. When the mining excavator is pushing, the pulley is driven by the push motor, and the push force is transmitted to the reducer through...

AI Technical Summary

Problems solved by technology

The above-mentioned pushing mechanism is usually used in large-scale mining excavators. For small mining excavators, the above-mentioned pushing mechanism is too complicated, and the space of small mining excavators is limited, so it is not suitable for installation of belt transmissions.

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