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Handrail device and excavator

A technology for excavators and handrails, applied in the field of handrails, can solve problems such as handrail structure weld seam and connecting bolt failure, handrail structure installation difficulties, etc., to reduce the risk of cracking and connecting bolt breakage, solve early failure, and reduce assembly effect of error

Pending Publication Date: 2020-12-04
ZOOMLION HEAVY IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual assembly, it is difficult to install the handrail structure. In order to install it, the threaded holes of the mounting plate need to be forced to align. Due to welding deformation and installation deformation, internal stress will be generated at the welding seam of the handrail structure and the connecting bolts, resulting in the failure of the handrail structure. Welds and connecting bolts are prone to early failure

Method used

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  • Handrail device and excavator
  • Handrail device and excavator
  • Handrail device and excavator

Examples

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Embodiment Construction

[0040] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0041] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features Therefore, features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include one or more of said features.

[0042] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. A connecti...

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Abstract

The invention discloses a handrail device. The handrail device comprises a first mounting plate, a second mounting plate, a first handrail pipe connected with the first mounting plate, a second handrail pipe, a third handrail pipe, and a fourth handrail pipe connected with the second mounting plate. The first handrail pipe is connected with one end of the second handrail pipe in a sleeved mode through a first energy absorption assembly, and the second handrail pipe can move in the axis direction of the pipe end connected with the first handrail pipe. The other end of the second handrail pipe is connected with one end of the third handrail pipe; the other end of the third handrail pipe is connected with the fourth handrail pipe in a sleeved mode through a third energy absorption assembly, and the third handrail pipe can move in the axis direction of the pipe end connected with the fourth handrail pipe. The invention further discloses an excavator. According to the handrail device, axialmovement in multiple directions can be achieved, the generation of internal stress is effectively reduced, and the risks of the cracking of welded joints and the cracking of connecting bolts are reduced.

Description

technical field [0001] The present invention relates to a handrail, in particular to a handrail device; in addition, it also relates to an excavator with the above-mentioned handrail device. Background technique [0002] Due to the high height of the large and medium-sized excavators, the operator needs to often go up to the upper frame of the excavator to check the situation. It is required that the upper frame must be equipped with handrails to ensure the safety of the operators. [0003] At present, the handrails on the excavator vibrate more and more violently when the excavator is working, and it is very common for the handrails to break. The common armrest structure on the excavator is generally a round tube that is bent and welded with mounting plates at both ends, and fixed on the frame. Due to deformation caused by welding and installation, internal stress is likely to occur at the welds of the handrail and the connecting bolts, resulting in cracks at the welds of t...

Claims

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Application Information

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IPC IPC(8): E02F9/08
CPCE02F9/0833
Inventor 颜鹏吴达鑫张家波陈飞刘国伟
Owner ZOOMLION HEAVY IND CO LTD
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