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Three-stage gear transmission device

A technology of gear transmission and large gear, which is applied in the direction of gear transmission, transmission, belt/chain/gear, etc., and can solve the problems of high manufacturing cost, high cost, and difficulty in manufacturing internal gears of gearboxes.

Inactive Publication Date: 2009-04-01
上海驰风机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of speed-up gearbox can realize power splitting by using planetary gear transmission, and has the advantages of small size and strong bearing capacity, but because internal gears must be used, and the manufacture of internal gears is difficult and costly, the manufacturing cost of this speed-up gearbox very high

Method used

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Examples

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Effect test

no. 1 example

[0029] As shown in Fig. 1a, Fig. 1b, Fig. 1c and Fig. 1d, the first embodiment of the present invention includes a case body 4, a low-speed shaft 1c, a low-speed large gear 1a, six low-speed pinions 1b, six medium Speed ​​stage connecting shaft 2c, six medium-speed stage large gears 2a, three medium-speed stage pinion gears 2b, three high-speed stage connecting shafts 3c, three high-speed stage large gears 3a, one high-speed stage pinion gear 3b and one high-speed shaft 3d; wherein, the low-speed shaft 1c is connected with the low-speed large gear 1a, and the low-speed large gear 1a is an external gear or an internal gear. In the low-speed stage, the low-speed large gear 1a is simultaneously distributed with six low-speed pinions 1b meshing, six low-speed pinion gears 1b are respectively connected with six medium-speed gears 2a through six medium-speed coupling shafts 2c; at medium-speed, six medium-speed gears 2a are divided into three groups, each group It includes two mediu...

no. 2 example

[0036] As shown in Fig. 2a, Fig. 2b, Fig. 2c and Fig. 2d, the second embodiment of the present invention includes a case body 42, a low-speed shaft 12c, a low-speed gear 12a, six low-speed pinions 12b, six medium Speed ​​stage coupling shaft 22c, six medium-speed stage large gears 22a, three medium-speed stage pinions 22b, three high-speed stage coupling shafts 32c, three high-speed stage large gears 32a, one high-speed stage pinion 32b, one high-speed shaft 32d and a planetary carrier 52; wherein, the planetary carrier 52 is rotatably arranged relative to the casing 42, for example, the planetary carrier 52 is arranged on the casing 42 through a self-aligning bearing, and the low-speed shaft 12c is connected with the planetary carrier 52 and connected with the planetary carrier 52 Rotate synchronously, the high-speed shaft 32d and the low-speed shaft 12c are mounted on the casing 42 through bearings, the low-speed gear 12a is fixedly arranged relative to the casing 42, and the...

no. 3 example

[0044]Fig. 3a, Fig. 3b, Fig. 3c and Fig. 3d show the third embodiment of the present invention, which includes a box body 43, a low-speed shaft 13c, a low-speed stage bull gear 13a, twelve low-speed stage pinions 13b, ten Two medium-speed stage connecting shafts 23c, twelve medium-speed stage bull gears 23a, six medium-speed stage pinion gears 23b, six high-speed stage connecting shafts 33c, six high-speed stage bull gears 33a1 and 33a2, one first high-speed stage stage pinion 33b1, a second high-speed stage pinion 33b2 and a high-speed shaft 33d; wherein, the low-speed shaft 13c is connected with the low-speed bull gear 13a, and the low-speed bull gear 13a is an external gear or an internal gear. In the low-speed stage, a low-speed The first stage bull gear 13a meshes with twelve low-speed stage pinions 13b distributed along its periphery at the same time, and the twelve low-speed stage pinions 13b are respectively connected to twelve medium-speed stage bull gears 23a through ...

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Abstract

A triple geared transmission unit comprises a box body, a low-speed shaft, a low-speed big gear wheel, low-speed small gear wheels, a medium-speed connection shaft, medium-speed big gear wheels, medium-speed small gear wheels, a high-speed connection shaft, high-speed big gear wheels, a high-speed small gear wheel and a high-speed shaft, wherein, the low-speed shaft is coupled with the low-speed big gear wheel, and at low speed degree, the low-speed big gear wheel is geared with the six low-speed small gear wheels; at medium speed degree, the six medium-speed big gear wheels are separated in three groups, each group comprises two medium-speed big gear wheels and the medium-speed big gear wheels in the same group are geared with a medium-speed small gear wheel simultaneously; at high speed degree, three high-speed big gear wheels are geared with the high-speed small gear wheel which is linked with the high-speed shaft; meanwhile, the transmission unit is characterized by high power, large speed ratio, high efficiency, high reliability, reasonable power distribution, simple structure and low manufacturing cost, and is particularly applicable to wind power generation.

Description

technical field [0001] The invention relates to a three-stage gear transmission device, in particular to a gear speed-increasing transmission device in wind power generation equipment. Background technique [0002] Existing wind power generation gear transmission gearboxes are generally three-stage gear transmission, the low-speed stage is generally planetary gear transmission, and the other two stages, namely the medium-speed stage and high-speed stage, are generally cylindrical gear transmission. Although this kind of speed-up gearbox can realize power splitting by using planetary gear transmission, and has the advantages of small size and strong bearing capacity, but because internal gears must be used, and the manufacture of internal gears is difficult and costly, the manufacturing cost of this speed-up gearbox very high. Contents of the invention [0003] The object of the present invention is to provide a three-stage gear transmission device, which can reasonably di...

Claims

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Application Information

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IPC IPC(8): F16H1/32
Inventor 周宏孝张志明
Owner 上海驰风机电科技有限公司
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