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目前在国内外研制的几种立爪式装载机上,工作机构的控制都是手动的。其缺点是,工作时必须频繁地扳动操纵手柄,使得操作人员比较紧张和吃力。在我们研制的LBZ-150型蟹立爪装载机上,设计和使用了一种立爪机构自动控制的装置。该装置的自动控制原理见附图,它由配电装置1通过电液换向阀2来控制升降油缸3和耙取油缸4。只要一按电钮,配电装置就转动起来,立爪机构便一次接一次地耙取物料。为了便于调车或某种动作的调整成避免配电装置一旦失灵而影响生产,所以,又撇开配电装置特别安设了控制立爪机构的升起、张
At present, at home and abroad developed several vertical claw loaders, the control of the working institutions are manual. The disadvantage is that the work must be frequently manipulated to pull the handle, making the operator more nervous and strenuous. In our developed LBZ-150 crab claw loaders, the design and use of a claw mechanism automatic control device. The automatic control principle of the device is shown in the accompanying drawings. The power distribution device 1 controls the lifting cylinder 3 and the raking cylinder 4 through the electro-hydraulic directional control valve 2. As long as the button is pressed, the power distribution unit will rotate and the claw mechanism will pick up the materials one after another. In order to facilitate the shunting or some kind of action adjustment to avoid the power distribution device failure once the impact of production, so, aside from the power distribution device specially set up the control of the claw mechanism to rise, Zhang