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Two-stage planetary gear speed reducer and straddle type railway vehicle

A technology of planetary gear reduction and two-stage planetary gear, which is applied in the field of two-stage planetary gear reduction devices and straddle rail vehicles, can solve the problems of high maintenance cost, high noise, traction power speed limit, etc., and achieve compact structure, volume The effect of small, low-cost manufacturing

Inactive Publication Date: 2018-05-29
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problem of straddling monorail is reflected in the power transmission. The existing reducer and other devices suitable for monorail vehicles have disadvantages such as high noise, limited traction power and speed, and high maintenance costs.

Method used

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  • Two-stage planetary gear speed reducer and straddle type railway vehicle
  • Two-stage planetary gear speed reducer and straddle type railway vehicle
  • Two-stage planetary gear speed reducer and straddle type railway vehicle

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] Refer below Figure 1-3 The two-stage planetary gear reduction device provided by the embodiment of the present invention is described in detail.

[0042] like Figure 1-3 , the two-stage planetary gear reduction device provided according to the embodiment of the present invention includes: a main body housing 18, the main body housing 18 is used to install various parts of the reduction device, and the shape and structure of the main body housing 18 are based on the components The positional relationship between them and the installation form are determined; th...

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Abstract

The invention provides a two-stage planetary gear speed reducer. The speed reducer comprises a main body shell, a primary sun gear, primary planetary gears, transmission shafts, secondary planetary gears, a secondary sun gear, an output shaft and a rim connecting piece, wherein the primary sun gear is used for inputting power and transmitting the power to the secondary sun gear through the primaryplanetary gears and the secondary planetary gears which are located on the transmission shafts, and then the power is directly output to the output shaft by the secondary sun gear. According to the two-stage planetary gear speed reducer, better load balancing can be achieved, vibration and noise are low, and the speed reducer has the advantages that structure is compact, the size is small and manufacturing cost is low. The invention further provides a straddle type railway vehicle, and the straddle type railway vehicle is provided with the two-stage planetary gear speed reducer, so that the straddle type railway vehicle is stable in performance and low in noise.

Description

technical field [0001] The invention relates to a two-stage planetary gear reduction device and a straddling rail vehicle. Background technique [0002] In recent years, urban rail transit has been promoted and applied in more and more cities, and the proportion of rail transit in my country is quite high, and the construction speed is very fast. For my country's mountainous cities and small and medium-sized cities, due to the special circumstances of economy, climate and topography, the establishment of rail transit such as subways is particularly difficult and practical. Low-cost, economical and environmentally friendly monorail. [0003] The bottom plane of the monorail car has running wheels that carry the weight of the car body. The running wheels are always in contact with the top surface of the track beam. on the horizontal wheel. At present, the main problem of straddling monorail is reflected in the power transmission. The existing reducer and other devices suitab...

Claims

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Application Information

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IPC IPC(8): F16H1/32F16H57/023F16H57/02B61C9/00
CPCB61C9/00F16H1/2809F16H1/321F16H57/02F16H57/023F16H2001/328F16H2057/02043
Inventor 杨鹏陈记龙付才林
Owner BYD CO LTD
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