Supporting leg automatic leveling method with suspended leg recognition function
An automatic leveling and leveling technology, applied in the direction of cranes, etc., can solve the problems of unstressed outriggers, cumbersome procedures, affecting work efficiency, etc., to ensure safe operation, improve leveling efficiency, and strong adaptability.
Active Publication Date: 2017-07-28
HUNAN UNIV OF TECH
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Problems solved by technology
However, for uneven ground, the automatic leveling process of the outriggers is relatively cumbersome. It often happens that some outriggers are not stressed after the outriggers are leveled (empty legs appear), which seriously affects the safe use of the equipment.
[0006] In the existing outrigger leveling system, the method of identifying the virtual leg is mostly to check the operation of the virtual leg after the main leveling leg is adjusted. This passive checking method will not only affect the work efficiency, but may also be caused by misuse Destroy the original working state of the main leveling outrigger
What's more, for self-leveling systems with more than four outriggers, it takes a lot of time to level the virtual legs
Method used
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Embodiment 2
[0058] Compared with the pressure sensor in Embodiment 1, the position sensor in Embodiment 2 has the advantages of simple structure, high reliability, good environmental adaptability, and low price, but its sensitivity is not as good as that of the pressure sensor, which may cause deviation of the predetermined extension length L Big. Different leveling equipment can choose appropriate sensors according to their own needs to realize the identification and leveling of virtual legs.
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Abstract
The invention discloses a supporting leg automatic leveling method with the suspended leg recognition function. The leveling method includes the following steps that in an automatic leveling system with three or more supporting legs, each supporting leg tray is provided with a pressure detection device used for measuring the pressure borne by each corresponding supporting leg; the automatic leveling system is started, all the supporting legs stretch out, the pressure detection devices on the supporting leg trays begin to work, and the system judges whether a preset pressure value P is met or not according to the detection value; if yes, the supporting legs are in a stressed state, no suspended legs exist, and then the supporting legs are extended by a preset length L and stop; at this moment, the supporting legs are in a pre-leveling state, and automatic leveling can be performed continuously; and when all the supporting legs are in a pre-leveling state, the automatic leveling system can stretch out and draw back the supporting legs one by one to level the whole system according to the measuring result of an electronic level meter. Therefore, the phenomenon of leg suspension (certain supporting legs are suspended) can be prevented after leveling, and safe operation is guaranteed. According to the automatic leveling method, the structure is simple, working is reliable and practicality is high.
Description
technical field [0001] The invention relates to the technical field of outrigger leveling, in particular to an outrigger automatic leveling method with a virtual leg identification function. Background technique [0002] Large-scale operating equipment needs to be frequently transferred to the operating location, and it needs to be kept level during operation. Therefore, most of the operating equipment is installed on a movable vehicle, and a leveling system is used to ensure that the equipment is in a horizontal state to meet the needs of equipment use. For example, civilian products such as truck cranes, climbing vehicles, concrete pump trucks, and military products such as radar antenna cars are all operating equipment that need to be leveled. [0003] Truck cranes, climbing vehicles, concrete pump trucks, radar antenna trucks and other operating equipment have the advantages of high construction efficiency and strong adaptability, and are widely used in construction, wat...
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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/78
CPCB66C23/78
Inventor 米承继许世宽聂笃忠黄梦阳贺礼慧张勇
Owner HUNAN UNIV OF TECH
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