Chassis leveling system for mixture arm high-altitude operation vehicle

A high-altitude work vehicle and chassis technology, which is applied in vehicle maintenance, lifting vehicle accessories, transportation and packaging, etc., can solve the problem of inability to meet the needs of chassis leveling, and achieve the effect of improving leveling accuracy and leveling efficiency.

Inactive Publication Date: 2015-08-19
XCMG XUZHOU TRUCK MOUNTED CRANE
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Problems solved by technology

With the continuous improvement of the working height of aerial work vehicles, especially the emergence of large-height hybrid arm aerial vehicles, the traditional manual leveling method can n

Method used

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  • Chassis leveling system for mixture arm high-altitude operation vehicle
  • Chassis leveling system for mixture arm high-altitude operation vehicle
  • Chassis leveling system for mixture arm high-altitude operation vehicle

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Embodiment

[0034] Example: such as image 3 As shown, the biaxial inclination sensor 12 judges the highest support point D1, the adjacent two low support points D2 and D3, the inclination angle in the Y1-Y2 direction measured by the biaxial inclination sensor 12 is α, and the inclination angle in the X1-X2 direction is β. The distance between point D1 and support point D2 is L1, and the distance between support point D1 and support point D3 is L2. According to the lifting and leveling method, the height of support point D2 needs to be raised h1=L1*sinα, the support point D3 needs to raise the height h2=L2*sinβ; the PLC controller will use the pre-stored formula to calculate the number of pulses n1 and n2 required for the support points D2 and D3 to raise h1 and h2. The calculation formula is: number of pulses n = hΔT, where: h represents the height that needs to be raised, and the unit is mm, and ΔT is a fixed pulse that produces a displacement of 1mm, and the time required for the suppo...

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Abstract

The invention discloses a chassis leveling system for a mixture arm high-altitude operation vehicle. Vertical oil cylinders and horizontal oil cylinders are communicated with an oil tank through an eight-connected electromagnetic reversing valve, an overflow valve and speed control valves, and a double-shaft tilt sensor is installed on an auxiliary frame; horizontal extend-in-place detecting switches are installed on the side faces of supporting leg boxes of the auxiliary frame respectively, horizontal extract-in-place detecting switches are installed on the lower faces of the supporting leg boxes of the auxiliary frame respectively, vertical extract-in-place detecting switches are installed on installing plates of the vertical oil cylinders respectively, tyre off-the-ground detecting switches are installed on installing plates arranged above tyres respectively, and vertical touch-the-ground detecting switches are installed at ends of horizontal supporting legs; the eight-connected electromagnetic reversing valve, the speed control valves, the double-shaft tilt sensor and the detecting switches are connected with a PLC. Manual work control is replaced with automatic control for chassis leveling, real-time leveling for a chassis is conducted by driving leveling mechanisms such as the detecting switches, the eight-connected electromagnetic reversing valve and the PLC, the leveling efficiency is improved, and the leveling precision is improved.

Description

technical field [0001] The invention relates to a chassis leveling system, in particular to a chassis leveling system of a hybrid arm aerial work vehicle. Background technique [0002] At present, the chassis leveling of domestic aerial work vehicles mainly adopts manual leveling. The leveling principle is: first extend the horizontal outrigger of the work vehicle, and then extend the vertical cylinder until the cylinder is fully extended and the tires are off the ground. At this time, the operator adjusts the corresponding vertical oil cylinder according to the direction of the air bubbles in the spirit level, until the chassis is adjusted to a position that the operator thinks is horizontal, so the operation is not only slow, but also the level accuracy of the chassis is not high. With the continuous improvement of the working height of aerial work vehicles, especially the emergence of large-height hybrid arm aerial vehicles, the traditional manual leveling method can no l...

Claims

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Application Information

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IPC IPC(8): B60S9/10
CPCB60S9/10
Inventor 陈志伟张士亮王艳辉曹丹李居义陈磊张隆义潘亚茹
Owner XCMG XUZHOU TRUCK MOUNTED CRANE
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