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High Power Tractor Continuously Variable Transmission

A continuously variable transmission and tractor technology, which is applied in the field of tractors, can solve the problems of difficulty in ensuring the reliability of the transmission, high requirements for the cleanliness of the hydraulic system, and high requirements for processing and assembly precision, so as to reduce auxiliary working time, excellent economy, and The effect of low processing requirements

Active Publication Date: 2016-01-20
FIRST TRACTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first structural form, compact structure but high processing and assembly precision requirements
The second type of structure has a simple structure and a small number of parts, but requires high performance of hydraulic components
The third form requires low processing and assembly precision, but complex control
The above three schemes all use integrated hydraulic components and share the oil source with the gearbox lubrication system, which requires high cleanliness of the hydraulic system, and the reliability of the gearbox is not easy to guarantee

Method used

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  • High Power Tractor Continuously Variable Transmission
  • High Power Tractor Continuously Variable Transmission
  • High Power Tractor Continuously Variable Transmission

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with embodiment. like figure 1 As shown, the high-power tractor CVT includes: gearbox front box H1, middle box H2, rear box H3, first clapboard C1, second clapboard C2, third clapboard C3, hydraulic machinery Dual-flow transmission 1 and fixed-shaft variable-speed transmission 10 , forward transmission 7 and reverse transmission 11 , four-wheel drive transmission 8 , power take-off 6 . The front box H1, the middle box H2, and the rear box H3 of the gearbox are arranged in sequence. The front box H1 and the middle box H2 of the gearbox are connected by bolts through the first partition C1, and the rear box H3 and the middle box H2 They are connected with bolts, and the second partition C2 and the third partition C3 are respectively installed with bolts in the middle box H2 and the rear box H3, thereby forming five component installation cavities in the gearbox box for installing various components. t...

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Abstract

High-power tractor continuously variable transmission, including: gearbox front box, middle box, rear box, first partition, second partition, third partition, hydraulic-mechanical double-flow transmission device and fixed-axis variable-speed transmission device , forward transmission device and reverse transmission device, four-wheel drive transmission device, power output device; the front box, middle box and rear box of the gearbox are arranged in sequence, and the front box and middle box of the gearbox pass through the first partition Bolts are connected, the rear box and the middle box are connected by bolts, the second partition and the third partition are respectively installed in the middle box and the rear box by bolts, and six component installation cavities are formed in the gearbox box ; The front end of the hydraulic-mechanical double-flow transmission device extends out of the front box to connect with the tractor engine, the rear end of the fixed-axis transmission device extends out of the rear box to connect with the input end of the rear axle, and the rear end of the power output device extends out of the rear box to connect with the power output shaft The input end is connected, and the front end of the four-wheel drive transmission device extends out of the rear box to connect with the front axle of the tractor.

Description

technical field [0001] The invention belongs to the field of tractors and relates to a tractor gearbox . especially involve one A High Power Tractor Continuously Variable Transmission 。 Background technique [0002] At present, domestically produced high-power tractors generally adopt stepped shifting. The disadvantages are that there are many working gears, complex structure, discontinuous transmission ratio and low comfort. When the tractor is faced with different operating conditions, the engine cannot always be in the most ideal working condition, so that the energy saving and environmental protection of the tractor cannot be further realized. At present, foreign high-power tractors are mainly equipped with segmented power-split gearboxes. In order to realize the speed regulation, section change and direction change of the gearbox, there are mainly three structural forms: one is fixed-axis splitter device + integrated hydrostatic transmission device + hydraulic mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/023F16H47/02
CPCF16H47/02F16H47/04F16H57/02F16H2047/025F16H2047/045F16H2057/02008F16H2057/02056
Inventor 史金钟王义平冯春凌薛志飞罗明泉李海成葛志伟杨彦朋翟营张曙彩范京红郭志强王红杨桂香刘涛卢绰
Owner FIRST TRACTOR
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