The invention provides a cart jacking steering positioning system and a cart operation mechanism, and belongs to the field of a hydraulic system. The cart jacking steering positioning system comprises an oil cylinder, an oil pump and a valve group, wherein the oil cylinder comprises a left jacking oil cylinder, a right jacking oil cylinder, a left steering oil cylinder, a right steering oil cylinder, a first positioning oil cylinder and a second positioning oil cylinder; the oil pump comprises an oil suction opening and an oil outlet; the oil suction opening is communicated with an oil tank; the valve group comprises at least five electromagnetic reversing valves; openings P of the plurality of electromagnetic reversing valves are communicated with the oil outlet of the oil pump; openings O of the plurality of electromagnetic reversing valves are communicated with the oil tank; an opening A of each electromagnetic reversing valve is communicated with a rodless cavity of one oil cylinder; and an opening B of each electromagnetic reversing valve is communicated with a rod cavity of the oil cylinder. The cart jacking steering positioning system provided by the invention has the advantages that the structure is simple; the performance is reliable; the cost is low; the repair is convenient; and the cart jacking steering positioning system is particularly suitable for a tire type crane.
Cart jacking steering positioning system and cart operation mechanism
2015-12-09
Patent
Elektronische Ressource
Englisch
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Europäisches Patentamt | 2021
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