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Operation control method and device and crane

A technology of operation control and controller, applied in cranes and other directions, can solve problems such as the deviation of the center of gravity of the whole vehicle and the rollover accident

Active Publication Date: 2016-04-06
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual operation, due to the operator's misoperation, the operation of retracting the vertical outrigger may occur when the boom is not retracted or fixed, causing the center of gravity of the vehicle to shift seriously, and even a rollover accident

Method used

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  • Operation control method and device and crane
  • Operation control method and device and crane
  • Operation control method and device and crane

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Embodiment Construction

[0061]Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise.

[0062] Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship.

[0063] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0064] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized d...

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PUM

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Abstract

The invention discloses an operation control method and device and a crane. The operation control method comprises the following steps that whether a lifting arm is retracted completely is detected; whether the lifting arm is placed on a lifting arm support is detected; whether a lower vehicle is in a torque extraction state is detected; and when the lower vehicle is in the torque extraction state and the lifting arm is retracted completely and placed on the lifting arm support, lengthening and shortening operation of a support leg is allowed to conduct. Therefore, according to the operation control method and device and the crane, an overturn accident caused by vehicle instability caused by serious centre-of-gravity shift of the whole vehicle due to the fact that lengthening and shortening operation of the support leg is conducted when the crane lifting arm is not retracted completely or not placed in place completely can be avoided.

Description

technical field [0001] The present invention relates to the technical field of cranes, and in particular, to an operation control method, a device and a crane. Background technique [0002] As a special engineering vehicle, the crane can not only meet the requirements of road vehicles, but also have the function of lifting operation. The loading and unloading of medium and small tonnage cranes share the engine installed in the lowering car. The cab can control the start, stop and throttle changes of the engine. Since multiple throttles such as the foot throttle, outrigger throttle, and boarding throttle of the crane can control the engine speed, there needs to be a certain logical relationship between them to avoid mutual interference. [0003] like figure 1 Shown is a schematic diagram of the crane's driving state after the outriggers are fully retracted. When driving on the road, the boom is fully retracted and placed on the boom support, the horizontal and vertical outr...

Claims

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Application Information

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IPC IPC(8): B66C23/88B66C23/62
Inventor 王建东屈会堂孙文赞李永勃张忠亮
Owner XUZHOU HEAVY MASCH CO LTD