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A central steering variable speed transmission device

A technology of steering variable speed and transmission device, which is applied in the field of vehicle transmission, can solve the problems of cost increase, and achieve the effects of improved steering performance, low cost and simple structure

Active Publication Date: 2019-01-11
SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydraulic transmission device improves the steering performance, but the hydraulic pump motor unit increases the cost more

Method used

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  • A central steering variable speed transmission device
  • A central steering variable speed transmission device
  • A central steering variable speed transmission device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0047] figure 1 It is a schematic structural diagram of the power transmission system including the central steering variable speed transmission device involved in the specific embodiment of the present invention, figure 2 It is a schematic structural diagram of the center steering variable speed transmission device involved in the first specific embodiment of the present invention. refer to figure 1 and figure 2 , the central steering transmission 100 includes: an input gear 10 to which the power of the engine 8 is transmitted through a front transmission (not shown); the left steering transmission 30L includes: a first planetary row 1, which is a three-element planetary row , including the first sun gear 1S, the first ring gear 1R and the first planet carrier 1C; the second planetary row 2, which is a four-element compound planetary row, including the second largest sun gear 2S1, the second small sun gear 2S2, the second The second ring gear 2R and the second planet car...

no. 2 Embodiment

[0065] For the above reasons, it is considered that the diesel engine also matches the existing four-speed side gearbox. However, since the torque adaptability coefficient of the diesel engine is only 1.6, while that of the gas turbine reaches 2.5, it must match at least five forward gears, or add a torque converter to expand the speed-torque range of the diesel engine.

[0066] image 3 It is a schematic structural diagram of the center steering variable speed transmission device involved in the second specific embodiment of the present invention. refer to image 3 , the central steering transmission device 100, including: input gear 10; torque converter 7, which includes a pump wheel 71, a turbine 72 and a lock-up clutch 73; the left steering transmission mechanism 30L includes: the first planetary row 1, which is three Element planetary row, including first sun gear 1S, first ring gear 1R and first planet carrier 1C; second planetary row 2, which is a four-element compoun...

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Abstract

The invention provides a central-centering variable-speed drive device which comprises an input gear, four planet rows, two clutches and six brakes. According to the central-centering variable-speed drive device, a large regulated relative steering radius, an intermediate regulated relative steering radius and a small regulated relative steering radius can be achieved, and the three regulated relative steering radiuses can be additionally provided and form four complete regulated relative steering radiuses provided for all forward gears with an original minimum regulated relative steering radius. The steering performance of a vehicle is improved, and the central-centering variable-speed drive device is simple in structure, low in cost and convenient for refitting of an existing tracked vehicle with a side gearbox.

Description

technical field [0001] The invention belongs to the technical field of vehicle transmission, and relates to a steering transmission device, in particular to a central steering variable speed transmission device for improving the steering performance of an existing double-sided gearbox tracked vehicle. Background technique [0002] In the development of the high-mobility tracked vehicle powertrain, there has been a unique double-sided transmission and steering. The side gearbox is lowered by one gear; when one gear is in the brake gear, the in-situ steering of ρ=0.5 can be achieved; when one gear is in 1st gear and the other gear is in reverse, it can achieve -0.5 <ρ<0.5 in situ center steering. This type of double-sided gearbox is installed in the car body from the side transmission hole on the side of the car body, and is connected to the engine through the front transmission. Although its steering performance is not good, it makes the power transmission compartment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/62
CPCB62D11/12F16H3/666F16H2200/2012F16H2200/2051
Inventor 夏承钢孙江明
Owner SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE