Track support for building machinery

Abstract

There is provided a crawler frame having a centre frame and right and left track frames disposed at the right and left sides of the centre frame so as to extend in a back and forth direction, wherein legs for connecting a central frame section of the centre frame to the track frames are formed from cast steel in order that washing can be easily done by reducing the amount of mud to be adhered to and deposited on the legs and in order that easy manufacture may be possible.

Description

Technical field [0001] The present invention relates to a crawler frame of construction machinery, in particular to a crawler frame of construction machinery suitable for the lower part of the cart of hydraulic excavators and the like. Background technique [0002] Conventionally, in a rotary operating machine such as a hydraulic excavator, a crawler-type moving device having an endless track-type crawler that can freely rotate left and right has been used. This crawler-type moving device is provided with a track frame (track frame) as the main body of the device. In this application, it is equivalent to a crawler frame). [0003] The rail frame of this type of rotary manipulator generally has the following structure. It is provided with a freely rotatably supporting rotary frame equipped with an excavator (excavator), operating room, motor, cover, etc., with a ring gear attached to the central part The center frame of the rotating bearing of the center frame, and a pair of left ...

AI Technical Summary

Problems solved by technology

[0016] Although the accumulated soil can be removed by washing, a large amount of washing water and many cleaning man-hours are required to remove it, and the cleaning cost increases

[0017] In addition, people who rent out construction machines such as hydraulic excavators leave a large amount of soil at the cleaning place after cleaning the construction machines, and the disposal of such soil can also cause problems.

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