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Planetary reduction gear, drive axle assembly and vehicle

A technology of planetary reduction and planetary gear, which is applied in the field of drive axle assembly, vehicle and planetary reduction device, which can solve the problems of affecting the normal operation of the planetary reduction device, increasing the difficulty of assembling the planetary reduction device, and the complicated setting of the oil guide flow path, etc. , to achieve the effect of improving practical performance, shortening circulation distance and improving lubrication efficiency

Active Publication Date: 2020-10-09
BYD CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oil guide flow is formed by the combination of oil guide holes on multiple components in the planetary reduction gear, which makes the arrangement of the oil guide flow path more complicated, which not only increases the difficulty of assembling the planetary gear reducer, but also The extension path of the oil guide flow path is long, and the flow resistance of the lubricating oil in the oil guide flow path is relatively large, which is prone to insufficient lubrication, which affects the normal operation of the planetary reduction gear.

Method used

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  • Planetary reduction gear, drive axle assembly and vehicle
  • Planetary reduction gear, drive axle assembly and vehicle
  • Planetary reduction gear, drive axle assembly and vehicle

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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0044] Refer below Figure 1-Figure 5 A planetary reduction gear 100 according to an embodiment of the present invention is described, and the planetary reduction gear 100 can be used in a drive axle assembly of a vehicle.

[0045] The planetary reduction gear 100 according to the embodiment of the present invention includes: a housing, a ring gear 1 , a planetary gear assembly 2 , a planetary carrier 3 , a planetary gear shaft 4 and an oil guide 6 .

[0046] Wherein, an assembly space may be defined in the casing, and an oil pool 100a ...

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Abstract

The invention discloses a planetary reduction gear, a drive axle assembly and a vehicle. The planetary reduction gear comprises a shell, a gear ring, a planet wheel assembly, a planet carrier, a planet wheel axle and an oil guide piece; an oil pool for containing lubricating oil is formed in the shell, the gear ring is fixedly connected with the shell, the planet wheel assembly is meshed and matched with the gear ring, the planet wheel axle is arranged on the planet carrier, the planet wheel assembly sleeves on the planet wheel axle, a bearing is arranged between the planet wheel assembly andthe planet wheel axle, and an oil guide flow path is arranged in the planet wheel axle; an oil inlet and an oil outlet communicating with the oil guide flow path are formed in the planet wheel axle, the oil guide piece is connected with the planet carrier so as to be driven by the planet carrier to rotate, a part of the oil guide piece is located in the oil pool, the oil guide piece is constructedto guide the lubricating oil in the oil pool to the oil inlet during rotation, and the lubricating oil in the oil guide flow path enters the bearing through the oil outlet. According to the planetaryreduction gear, the oil guide piece is arranged on the planet carrier, so that the lubricating efficiency and the lubricating effect of the planetary reduction gear are greatly improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a planetary speed reduction device, a drive axle assembly and a vehicle. Background technique [0002] In the related art, the planetary reduction gear in the gearbox is provided with an oil guide flow path for circulating lubricating oil. However, the oil guide flow is formed by the combination of oil guide holes on multiple components in the planetary reduction gear, which makes the arrangement of the oil guide flow path more complicated, which not only increases the difficulty of assembling the planetary gear reducer, but also The extended path of the oil guide flow path is long, and the flow resistance of the lubricating oil in the oil guide flow path is relatively large, which is prone to insufficient lubrication, thereby affecting the normal operation of the planetary reduction gear. Contents of the invention [0003] The present invention aims to solve at least one of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16H3/70F16H57/04F16H57/029
CPCF16H3/44F16H3/70F16H57/029F16H57/042F16H57/0427F16H37/082B60K2001/001
Inventor 汤秋彬李冬冬
Owner BYD CO LTD
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