Durable and lightweight hydraulic lifting system
A durable and lightweight technology, applied in the superstructure, superstructure of trucks, transportation and packaging, etc., can solve problems such as high failure rate and complex structure, and achieve lower manufacturing costs, convenient operation, and improved use. effect of life
Pending Publication Date: 2018-02-27
中国重汽集团南充海乐机械有限公司
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Problems solved by technology
But it also has shortcomings, the structure is too complicated, the failure rate is higher than that of the torsion bar type, and it also has higher requirements for maintenance
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Embodiment Construction
[0011] Such as figure 1 As shown, the present invention includes a hydraulic medium, an electric oil delivery pump assembly 1 , an integrated pump body assembly 2 , and an integrated hydraulic cylinder assembly 3 . Connect the oil suction port of the electric oil delivery pump assembly with the oil suction port of the integrated pump body assembly through the oil pipe, then connect the oil outlet of the electric oil delivery pump assembly with the oil inlet port of the integrated pump body assembly through the oil pipe, and finally pass the oil pipe Connect the oil push port of the integrated pump body assembly with the oil push port of the integrated hydraulic cylinder assembly, and connect the oil pull port of the integrated pump body assembly with the oil pull port of the integrated hydraulic cylinder assembly. Such as figure 2 , 3 The integrated hydraulic cylinder assembly shown includes integral active cold rod 8, aluminum alloy guide sleeve 9, PU seal 10, integrated c...
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The invention discloses a durable and lightweight hydraulic lifting system. The system is characterized in that a micro hydraulic oil tank, a piston and a guide sleeve are made of aluminum alloy materials, an oil suction hole of an electric oil transfer pump assembly is connected with an oil suction hole of an integrated pump body assembly through an oil pipe, an oil outlet of the electric oil transfer pump assembly is connected with an oil inlet of the integrated pump body assembly, finally an oil push hole of the integrated pump body assembly is connected with an oil push hole of an integrated hydraulic oil cylinder assembly, and an oil pull hole of the integrated pump body assembly is connected with an oil pull hole of the integrated hydraulic oil cylinder assembly. A hydraulic mediumuses antifreeze liquid to replace hydraulic oil, a sealing element is made of temperature-resistant PU materials and PTFE materials, a reversing shaft and a pump body are cooperated and sealed, meanwhile a waist type oil-returning slot is added, a liquid-controlled one-way valve is directly mounted in a cylinder base, and a piston and a piston rod are in threaded connection. The integrated hydraulic system is simple in structure and easy to operate, the weight of the structure of an oil cylinder is reduced, and the manufacturing accuracy of a product is improved.
Description
technical field [0001] The invention relates to a hydraulic automatic lifting device for a cab of a heavy truck, in particular to a durable and lightweight hydraulic lifting system for a cab of a heavy truck. Background technique [0002] In recent years, several policies of the central government to stimulate the auto market have been introduced or withdrawn, causing positive and negative changes in the Chinese auto market. Economic structural adjustment and fixed asset investment are the main driving forces for the rapid development of the medium and heavy truck industry. The construction of basic projects continues to grow, which has a huge boost to the heavy truck market. Under the combined effect of positive and superimposed factors, the market capacity of the heavy truck industry will expand and vehicles will be replaced. The rigid demand becomes the basic support. The cancellation of road maintenance fees and the policy of charging by weight have a huge impact on the...
Claims
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IPC IPC(8): B62D33/063
CPCB62D33/063
Inventor 唐海宏杜勇张敏
Owner 中国重汽集团南充海乐机械有限公司