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Boarding ladder system of large type excavator

A technology of excavator and car boarding ladder, which is applied in the field of large excavator car boarding ladder system, can solve the problems of insufficient durability and stability, and achieve the effect of reliable structure and guaranteed safety

Pending Publication Date: 2018-06-22
XCMG EXCAVATOR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these structures will have the problem of insufficient durability and stability in the harsh environment of mines.

Method used

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  • Boarding ladder system of large type excavator
  • Boarding ladder system of large type excavator
  • Boarding ladder system of large type excavator

Examples

Experimental program
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Effect test

Embodiment Construction

[0059] The present invention will be further described through specific embodiments below in conjunction with the accompanying drawings.

[0060] Such as figure 2 As shown, a large excavator boarding ladder system includes a ladder frame 10, a ladder body 13, a pull rope device and a locking device. Wherein, the ladder frame 10 is hinged at the cabin of the excavator; the ladder body 13 is slidably connected in the ladder frame 10; 13 After the ladder frame 10 is retracted upward to a predetermined length, the pull rope device drives the ladder frame 10 to move, causing the ladder frame 10 to shrink in the accommodation space at the hanger; when the ladder frame 10 shrinks in the accommodation space at the hanger, lock The device is inserted into the ladder body 13 , thereby fixing the ladder body 13 .

[0061] Such as figure 1 As shown, the pull rope device includes hoist drum 2, guide wheel Ⅰ 8, guide wheel Ⅱ 9, steel cable 3 and power device; hoist drum 2 is installed o...

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PUM

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Abstract

The invention discloses a boarding ladder system of a large type excavator. The boarding ladder system comprises a ladder frame, a ladder body, a cord pulling device and a locking device. The ladder frame is hinged to a hanging cabin of the excavator; the ladder body is slidably connected in the ladder frame; the cord pulling device is connected with the ladder body for pulling the ladder body toslide up and down in the ladder frame, and after the ladder body is contracted upwards by the predetermined length in the ladder frame, the cord pulling device drives the ladder frame to move, so thatthe ladder frame is contracted in accommodating space at the hanging cabin; and when the ladder frame is contracted in the accommodating space at the hanging cabin, the locking device is inserted into the ladder body to fix the ladder body. The boarding ladder system of the large type excavator can be controlled to be placed down by a driver in a cab after stop and put away before working in thecab.

Description

technical field [0001] The invention belongs to the field of construction machinery, and in particular relates to a large excavator boarding ladder system. Background technique [0002] Due to the high height of the turntable of large excavators used in mines, if you want to board the car, you must use a retractable boarding ladder. [0003] Ladders must be retractable when working and put down when not working, and must be mechanically powered to reduce labor intensity. The forms that have appeared now are non-foldable, and can be loaded from the front, both sides and the rear of the vehicle. However, these structures all have the problem of insufficient durability and stability in the harsh environment of mines. [0004] The present invention adopts a structure combining a four-link structure and a lifting structure, and by strengthening the structural parts and optimizing the structural installation, the service life of the ladder is maximized. Contents of the inventi...

Claims

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Application Information

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IPC IPC(8): E02F9/08E06C5/12
CPCE06C5/12E02F9/0833
Inventor 单昆吴锦王震王庆郭中华丁跃进
Owner XCMG EXCAVATOR MACHINERY
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