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Double-row transmission variable-speed assembly and steel ball bevel-type hydraulic hybrid automobile continuously variable transmission

A technology of continuously variable transmission and transmission parts, applied in transmission devices, friction transmission devices, belts/chains/gears, etc., can solve the problems of insufficient synchronization of double-row speed regulation, complex speed regulation structure, low bearing capacity, etc. The speed regulation method is simple and reliable, the speed regulation mechanism is simple, and the transmitted power is large.

Active Publication Date: 2020-06-12
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The traditional steel ball cone CVT is divided into steel ball inner cone type (XB type) and steel ball outer cone type (kopp-B type), and the steel ball push-out CVT is limited by the mechanism
The transmittable power is as small as 11KW. The steel ball inner cone type (XB type) is an improved product of the steel ball outer cone type (kopp-B type) transmission. Its design greatly improves the load-carrying performance of the transmission, but it still cannot meet the vehicle transmission power. needs
[0007] 2. The traditional steel ball cone type continuously variable transmission is a single-row intermediate transmission mechanism. In order to ensure the strength, when transmitting large power, the size of the transmission is huge, and the structure of the single-row intermediate transmission steel balls is asymmetrical in force
[0008] 3. The traditional steel ball-cone continuously variable transmission adopts mechanical speed regulation (multi-stage gear or worm gear mechanism), and the speed regulation structure is huge. For example, the speed regulation mechanism of the XB type continuously variable The number of rows of transmission steel balls that can be installed is limited, and the bearing capacity is low
Its speed regulation structure is complex, limited by the structure of its speed regulation mechanism, the synchronization of double-row speed regulation is insufficient, under the same transmission size, the diameter of the intermediate transmission steel ball is small, and the range of transmission ratio is small

Method used

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  • Double-row transmission variable-speed assembly and steel ball bevel-type hydraulic hybrid automobile continuously variable transmission
  • Double-row transmission variable-speed assembly and steel ball bevel-type hydraulic hybrid automobile continuously variable transmission
  • Double-row transmission variable-speed assembly and steel ball bevel-type hydraulic hybrid automobile continuously variable transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: Please refer to Figure 1 to Figure 5 , a double-row transmission shift assembly, including two pairs of transmission parts 100, the transmission part 100 includes a transmission steel ball 110, a fixed disc 120 and a rotating speed regulating disc 130 that cooperate with the fixed transmission steel ball 110, and the fixed disc 120 includes The first fixed disk 121 and the second fixed disk 122, the first fixed disk 121 is provided with a limiting groove, and the second fixed disk 122 is provided with a radial chute hole corresponding to the limiting groove. The transmission steel ball 110 is embedded between the two fixed disks 120 through the mandrel 111, the limit groove and the chute hole, please refer to Image 6 , the rotating speed regulating disk 130 is installed close to the side of the second fixed disk 122 away from the transmission steel ball 110, the rotating speed regulating disk 130 is provided with a curved groove 131 intersecting with the ch...

Embodiment 2

[0053] Example 2: Please refer to Figure 1 to Figure 7 , on the basis of Embodiment 1, in order to ensure that the rotational friction between the transmission steel ball 110 and the mandrel 111 is small, a bearing is provided between the transmission steel ball 110 and the mandrel 111, and at the same time, the mandrel One end of 111 is connected with the sliding ball screw 112 through threads, the mandrel 111 is embedded in the curved groove 131 of the rotating speed regulating disk 130 through the sliding ball screw 112, and the curve of the rotating speed regulating disk 130 Slide in the slot to adjust the speed. Optionally, the contact between the mandrel and the fixed disk can be made into a sliding shoe type, and the contact section of the speed regulating turntable can also be made into a spherical hinge sliding shoe type to increase the contact area and reduce the contact pressure. An inner ring 150 is arranged between the two fixed disks 120, and the inner ring 150...

Embodiment 3

[0054] Embodiment three, please refer to Figure 8 to Figure 14 , corresponding to Embodiment 2, a ball-and-cone hydraulic compound type continuously variable transmission for automobiles, which adopts the double-row transmission transmission assembly of Embodiment 2, and also includes an input shaft 200, two input assemblies 300, and two output assemblies 400 and output shaft 500.

[0055] Wherein, the double-row transmission shift assembly includes two pairs of transmission parts 100, and the transmission parts 100 include transmission steel balls 110, a fixed disk 120 and a rotating speed regulating disk 130 that cooperate with the fixed transmission steel balls 110, and the fixed disk 120 includes The first fixed disk 121 and the second fixed disk 122, the first fixed disk 121 is provided with a limiting groove, and the second fixed disk 122 is provided with a radial chute hole corresponding to the limiting groove. The transmission steel ball 110 is embedded between the t...

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PUM

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Abstract

The invention provides a double-row transmission variable-speed assembly and a steel ball bevel-type hydraulic hybrid automobile continuously variable transmission. The double-row transmission variable-speed assembly comprises two pairs of transmission pieces, and the transmission pieces comprise transmission steel balls, fixed discs and rotary speed-regulating discs. The fixed discs comprise first fixed disc bodies and second fixed disc bodies, the transmission steel balls are embedded between the two fixed discs through mandrels, limiting grooves and sliding chute holes, the rotary speed-regulating discs are installed close to the second fixed disc bodies, the rotary speed-regulating discs are provided with curved grooves crossed with the sliding chute holes, one ends of the mandrels extend out from the sliding chute holes and are limited in the curved grooves, when the rotary speed-regulating discs are rotated, points of intersection between the curved grooves and the sliding chuteholes move up and down, one ends of the mandrels can move up and down, and thus an angle of the mandrels is changed. The two pairs of transmission pieces are coaxial and the rotary speed-regulating discs are oppositely installed, a hydraulic cylinder is driven by swinging, a speed-regulating mechanism is simple in structure, symmetric in stress, small in outline dimension, more in transmission balls and large in touch area, so that the baring capacity of the continuously variable transmission is high, and the transferring power is large.

Description

technical field [0001] The invention relates to the technical field of continuously variable transmissions, in particular to a double-row transmission transmission assembly and a steel ball-cone hydraulic compound type automobile continuous variable transmission. Background technique [0002] The primary function of a transmission is to modulate power input by transmitting power output to a driven device at a desired ratio of input speed to output speed ("ratio"). [0003] Continuously variable transmission refers to the transmission mode in which the output shaft speed can be continuously changed within the range of two extreme values ​​under the action of certain control. Compared with several transmission ratios), it can continuously change the speed within a certain range according to the work needs to adapt to the requirements of output speed and external load changes. [0004] Various types of continuously or infinitely variable transmissions are known in the art of m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H15/40
CPCF16H15/40
Inventor 赵升吨葛灵娇蒋红张蜜蜜周帅
Owner XI AN JIAOTONG UNIV