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Method for controlling ultra-large type excavator stairway

An excavator, ultra-large technology, applied in the field of ultra-large excavator staircase control, can solve the problems of staircase damage, large economic losses, etc., and achieve the effect of avoiding losses

Active Publication Date: 2018-06-15
XUZHOU XCMG MINING MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It often happens that the driver forgets to retract the stairs and operates a super-large excavator, which damages the stairs and causes relatively large economic losses

Method used

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  • Method for controlling ultra-large type excavator stairway

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0024] like figure 1 As shown, in the method of the present invention, when the controller 6 detects the closing signal of the expansion button 11, it means that the driver wants to perform the operation of expanding the stairs. The controller 6 detects the state of the safety handle switch 5, if the safety handle switch 5 is closed, it means that the ultra-large excavator is not operating at this time, and the stairs are allowed to expand, otherwise it is not allowed. The controller 6 detects the state of retracting the proximity switch 1 and the locking proximity switch 4. If the retracting proximity switch 1 and the locking proximity switch 4 are closed, it means that the stairs are in the retracted state, and the staircase unlocking operation can be performed. The controller 6 drives the unlocking solenoid valve 7 to unlock the stairs, and detects the state of th...

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Abstract

The invention discloses a method for controlling an ultra-large type excavator stairway and relates to the technical field of ultra-large type excavators. According to a controller, the real-time state of the stairway is detected through a proximity switch, and whether the stairway needs to be unfolded or folded is judged according to button operation. Meanwhile, the on-off state of a safety handle is detected, and when the safety handle is closed, unfolding and folding of the stairway is carried out. The method is suitable for controlling the ultra-large type excavator stairway, it is guaranteed that when the ultra-large type excavator carries out operation, the stairway is in a folded state, and the loss caused by stairway damage is avoided.

Description

technical field [0001] The invention relates to a method suitable for controlling stairs of super large excavators, belonging to the technical field of super large excavators. Background technique [0002] Ultra-large excavators are mainly used in large mines, and are characterized by their large dimensions, requiring stairs to enter the excavator for operation or maintenance. The expansion and retraction of the stairs are realized by manual operation with two buttons. When the ultra-large excavator is working, the stairs must be retracted, otherwise the stairs will be damaged when turning. It often happens that the driver forgets to take back the stairs and operates a super-large excavator, which damages the stairs and causes relatively large economic losses. Contents of the invention [0003] The purpose of the present invention is to provide a method applicable to the control of the stairs of super-large excavators, which ensures that the stairs are in a retracted sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20
CPCE02F9/2025
Inventor 刘立祥邢泽成魏红敏
Owner XUZHOU XCMG MINING MACHINERY CO LTD