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A planetary gear transmission

A technology of planetary gear transmission and planetary gear, applied in the direction of gear transmission, transmission, transmission parts, etc., can solve the problems of inconvenient daily observation and maintenance, large passenger capacity, etc., and achieve the elimination of adverse effects and no impact on the structure , the effect of simple structure

Active Publication Date: 2021-11-12
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rail industry has a large passenger capacity and requires much higher reliability than automobiles. The traditional oil level gauge adopts a blind measurement method, which is inconvenient for daily observation and maintenance. It is urgent to design an intuitive and reliable device to meet the oil level of planetary gear transmissions. Observed

Method used

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  • A planetary gear transmission
  • A planetary gear transmission
  • A planetary gear transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see Figure 1-5 , a planetary gear transmission, which includes a cylindrical housing 1 and a planetary gear 6, a sun gear 4, and an inner ring gear 5 located in the housing 1, and the planetary gear transmission also includes a set of the The oil level observation device on the end cover of the housing 1, the oil level observation device includes an outer cover plate 2 and an inner transparent plate 3, the outer cover plate 2 is provided with a hollow arc 2c, and the hollow arc 2c The center of circle is located at the rotation center of the planetary gear transmission, the inner transparent plate 3 is located between the outer cover plate 2 and the end cover, and the inner transparent plate 3 completely covers the hollow arc 2c, There is an oil level indicating cavity 8 for observing the oil level between the inner transparent plate 3 and the end cover, and the oil level indicating cavity 8 is connected to the inside of the housing 1 through the oil filter provided on...

Embodiment 2

[0036] The difference from the above-mentioned embodiment 1 is that the hollow arc 2c in the embodiment 1 is replaced by a hollow ring, and the outer cover plate 2 includes a split outer ring cover plate and an inner ring cover plate, and the outer ring cover plate and the inner ring cover plate are separated. There is the hollow ring between the inner ring cover plates.

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Abstract

The invention discloses a planetary gear transmission, which comprises a cylindrical shell and a planetary wheel, a sun gear and an inner ring gear located in the shell, and the planetary gear transmission also includes an outer cover arranged on the end cover of the shell plate and the inner transparent plate, the outer cover plate is provided with a hollow arc, the center of the hollow arc is located at the rotation center of the planetary gear transmission, the inner transparent plate is located between the outer cover plate and the end cover, and the inner transparent plate completely covers the hollow An arc, an oil level indicating cavity for observing the oil level is provided between the inner transparent plate and the end cover, and the oil level indicating cavity communicates with the inside of the housing through the oil hole provided on the end cover. In the present invention, by setting an arc-shaped oil level observation window on the end cover of the planetary gear transmission, the oil level in the planetary gear transmission and the quality of lubricating oil can be directly observed in real time, and the rotation of the shell of the planetary gear transmission is eliminated. The adverse effect brought by oil level observation, the present invention has simple structure and is convenient for maintenance.

Description

technical field [0001] The invention relates to the technical field of rail transit transmission devices, in particular to a planetary gear transmission. Background technique [0002] Involute planetary gear transmissions are widely used in reducers, especially in industries such as automobiles and wind power. It has the advantages of small size, light weight, large carrying capacity, high efficiency and stable operation. Compared with ordinary cylindrical gear transmission, the transmission ratio is large, the volume and weight can be reduced by about 50%, and the efficiency can be increased by 3%. The lubrication of involute planetary gears is generally splash oil lubrication, and a gear box with good sealing performance is required to contain gear lubricant. If the seal is poor or the oil quality deteriorates, the amount of oil will decrease and the lubrication will be unreliable. In severe cases, the bearings in the transmission will overheat and solidify, leading to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/32F16H57/023F16H57/04
CPCF16H1/32F16H57/023F16H57/04
Inventor 祝贺沈龙江何烨易兴利谢加辉邹文辉张又孔张冲高彬肖泽桦魏宏图郭庆升
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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