Title:
EXCAVATOR UNLOADING LENGTH ADJUSTMENT SYSTEM AND EXCAVATOR
Document Type and Number:
WIPO Patent Application WO/2022/267505
Kind Code:
A1
Abstract:
An excavator unloading length adjustment system, comprising: unloading walking beams; crawler belts (10), which are arranged around the unloading walking beams; and an adjustment assembly (50), which is adapted for adjusting the lengths of the unloading walking beams and accordingly adjusting the heights of the crawler belts in a longitudinal direction, wherein the adjustment assembly has an extended state in which same drives the unloading walking beams to lengthen and drives the crawler belts to descend in a longitudinal direction, and a retracted state in which same drives the unloading walking beams to shorten and drives the crawler belts to ascend in a longitudinal direction. The system realizes self-adaptive adjustment of the crawler belts with constant perimeters, and overcomes the shortcoming in the prior art of the ground specific pressure of an excavator not being adjustable. Further disclosed is an excavator comprising the excavator unloading length adjustment system.
Inventors:
WANG XIAO (CN)
YAO JINMEI (CN)
YAO JINMEI (CN)
Application Number:
PCT/CN2022/077680
Publication Date:
December 29, 2022
Filing Date:
February 24, 2022
Export Citation:
Assignee:
SHANGHAI SANY HEAVY MACHINERY CO LTD (CN)
International Classes:
B62D55/084; B62D55/14; B62D55/30
Foreign References:
| CN113247127A | 2021-08-13 | |||
| CN206407008U | 2017-08-15 | |||
| CN108860341A | 2018-11-23 | |||
| CN201371870Y | 2009-12-30 | |||
| CN106641573A | 2017-05-10 | |||
| JPH1045060A | 1998-02-17 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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