Dual-planet hydraulic drive continuously variable transmission

Abstract

The invention relates to a dual-planet hydraulic drive continuously variable transmission. The dual-planet hydraulic drive continuously variable transmission comprises two transmission shafts arrangedin parallel. The outer portion of each transmission shaft is coaxially sleeved with a transmission barrel, and the outer barrel walls of the two transmission barrels are tangent outwards and are in friction contact. A pair of electrode plates is arranged at the upper barrel ends and the lower barrel ends of the transmission barrels in parallel. The electrode plates are in sealed contact with thebarrel ends of the transmission barrels. Airtight barrel-shaped space defined by the transmission barrels and the electrode plates is filled with electrorheological fluid. Flow guide pipes are mountedin a manner of penetrating the electrode plates, one ends of the flow guide pipes are connected with a controller, and the other ends of the flow guide pipes communicate with the airtight barrel-shaped space. Limiting columns are evenly distributed in the circumferential direction of the outer portion of each transmission barrel. Each limiting column comprises a body and a telescopic base. The telescopic bases are electrically connected with the controller. The transmission is novel and unique in structure, low in manufacturing cost and small in structure, has a wide adjusting range and can meet wider use occasions.

Description

technical field [0001] The invention relates to a transmission, especially a continuously variable transmission. Background technique [0002] Continuously variable speed technology, using the transmission belt and the variable working diameter of the driving and driven wheels to cooperate with each other to realize the continuous change of the transmission ratio; the common transmission methods are divided into three types, liquid transmission, electric transmission and mechanical transmission; The manufacturing accuracy is too high, the price is expensive, and oil leakage is prone to occur during operation at the same time; although the electric transmission has a large adjustment range and a wide power range, it has low efficiency at low speeds and unstable operation, relatively high prices, and maintenance is also relatively difficult. It is cumbersome; the mechanical transmission method has a simple structure and is easy to maintain, but the processing and lubrication r...

AI Technical Summary

Problems solved by technology

[0002] Continuously variable speed technology, using the transmission belt and the variable working diameter of the driving and driven wheels to cooperate with each other to realize the continuous change of the transmission ratio; the common transmission methods are divided into three types, liquid transmission, electric transmission and mechanical transmission; The manufacturing accuracy is too high, the price is expensive, and oil leakage is prone to occur during operation at the same time; although the electric transmission has a large adjustment range and a wide power range, it has low efficiency at low speeds and unstable operation, relatively high prices, and maintenance is also relatively difficult. It is cumbersome; the mechanical transmission method has a simple structure and is easy to maintain, but the processing and lubrication requirements of the parts are relatively high, and the load-carrying capacity is low; therefore, the traditional continuously variable transmission methods have shortcomings and cannot be applied to more comprehensive occasions ; At the same time, the high price is not conducive to the promotion and use of continuously variable transmissions

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