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A Mechanical-Hydraulic Hybrid Continuously Variable Transmission Device Using Secondary Elements

A technology of continuously variable speed change device and secondary element, which is applied in the direction of mechanical equipment, transmission device, fluid transmission device, etc., can solve the problem of one-way transmission of power flow, and achieve the goal of expanding the range of speed change, realizing the range of speed change, and high transmission efficiency Effect

Inactive Publication Date: 2017-07-14
CHANGAN UNIV
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  • Abstract
  • Description
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Problems solved by technology

Theoretically, these three volume speed regulating circuits can all be used in mechanical-hydraulic hybrid transmissions, but if the above circuits are used as hydraulic branches, the transmission of power flow is always unidirectional, and the total output speed of the hybrid transmission is only It "increases" the speed of the hydraulic transmission branch on the basis of the output speed of the mechanical transmission branch, and the ability to expand the speed range is limited.

Method used

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  • A Mechanical-Hydraulic Hybrid Continuously Variable Transmission Device Using Secondary Elements
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  • A Mechanical-Hydraulic Hybrid Continuously Variable Transmission Device Using Secondary Elements

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Embodiment Construction

[0023] The present invention is described in further detail below in conjunction with accompanying drawing:

[0024] refer to figure 1 , the mechanical-hydraulic hybrid continuously variable transmission device using secondary elements in the present invention includes a device input shaft, a hydraulic transmission branch, a device output shaft, a box body 1, a first planetary row 9, a second planetary row 10, a first The planetary row 9, the second planetary row 10, the brake 5 for braking the ring gear in the first planetary row 9 and the ring gear in the second planetary row 10, and the transmission for controlling the brake 5 System; the first secondary element 4 and the second secondary element 6 are connected in series, the output shaft of the first secondary element 4 is connected to the device input shaft, the sun gear of the first planet row 9 is connected to the device input shaft, and the second The planetary carrier of the first planetary row 9 is connected to the...

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Abstract

The invention discloses a mechanical-hydraulic hybrid stepless transmission device adopting a secondary element, comprising a device input shaft, a hydraulic transmission branch, a device output shaft, a box body, a first planetary row, a second planetary row, and a The ring gear in one planetary row and the ring gear in the second planetary row act as brakes for braking, and a transmission system for controlling the brakes. The speed change range of the invention is relatively large, and can meet the requirements of medium and large construction machinery on the transmission system.

Description

technical field [0001] The invention belongs to the technical field of mechanical and hydraulic transmission and control, and relates to a mechanical-hydraulic hybrid stepless speed change device using a secondary element. Background technique [0002] Hydraulic transmission has the advantages of light weight, small size, high power density, easy to realize stepless speed regulation and automatic control, etc., but at the same time, it has the disadvantages of low transmission efficiency, especially in high-speed and low-speed transmission conditions. The shortcomings are more prominent. Gear mechanical transmission has the advantages of accurate and reliable transmission motion, constant instantaneous transmission ratio, compact structure, large transmission ratio, large transmission power and high transmission efficiency, but it is not easy to realize automatic transmission, let alone continuously variable transmission. When medium and large-scale construction machinery i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H47/04
CPCF16H47/04F16H2047/045
Inventor 王欣张志友姚阳张旭
Owner CHANGAN UNIV
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