阅读说明：本技术 换向变速箱 (Reversing gear box ) 是由 韩伟发 于 2019-03-29 设计创作，主要内容包括：一种换向变速箱,在使输入端与输出端发生方向改变的同时,还实现变速功能。其主要由箱体、输入端锥齿轮、输入轴、被动锥齿轮、输入轴大齿轮、输入轴小齿轮、传动轴、传动轴被动大齿轮、传动轴被动小齿轮、传动轴主动大齿轮、传动轴主动小齿轮、输出轴、输出轴大齿轮、输出轴小齿轮、支承轴承等部件组成。箱体内安装有互相啮合的输入端锥齿轮和被动锥齿轮,还安装有互相平行的输入轴、传动轴、输出轴,被动锥齿轮安装在输入轴上。输入端锥齿轮与被动锥齿轮之间的角度就是此换向变速箱输入端与输出端的角度。通过输入轴、传动轴、输出轴上各齿轮的排列组合,可使输出轴得到不同的转速。本发明具有变速范围大,结构简单紧凑的特点。(A reversing gearbox realizes a speed change function while changing the directions of an input end and an output end. The device mainly comprises a box body, an input end bevel gear, an input shaft, a driven bevel gear, an input shaft gearwheel, an input shaft pinion, a transmission shaft driven gearwheel, a transmission shaft driven pinion, a transmission shaft driving gearwheel, a transmission shaft driving pinion, an output shaft gearwheel, an output shaft pinion, a support bearing and the like. An input end bevel gear and a driven bevel gear which are mutually meshed are arranged in the box body, an input shaft, a transmission shaft and an output shaft which are mutually parallel are also arranged in the box body, and the driven bevel gear is arranged on the input shaft. The angle between the input bevel gear and the driven bevel gear is the angle between the input end and the output end of the reversing gearbox. The output shaft can obtain different rotating speeds through the arrangement and combination of the gears on the input shaft, the transmission shaft and the output shaft. The invention has the characteristics of large speed change range and simple and compact structure.)

1. A reversing gear box is characterized in that: the reversing gearbox comprises a box body, an input end bevel gear, an input shaft, a driven bevel gear, an input shaft pinion, a transmission shaft driven gear, a transmission shaft driven pinion, a transmission shaft driving gear, a transmission shaft driving pinion, an output shaft gear, an output shaft pinion, a support bearing and the like, wherein the input end bevel gear and the driven bevel gear which are meshed with each other are arranged in the box body; the reversing gearbox realizes a reversing function through an input end bevel gear and a driven bevel gear, and realizes a speed changing function through the arrangement and combination of gears on an input shaft, a transmission shaft and an output shaft.

Belongs to the technical field of:

the invention relates to a gearbox structure with different directions of an input end and an output end, which is mainly used in a rubber crawler traveling system of medium-large agricultural machinery.

Background art:

at present, the crawler traveling structures in a rubber crawler traveling system in the field of agricultural machinery in China mainly have two types: the second type is a Luoyang one-dragging crawler belt walking structure which is characterized in that a gearbox is large in size, slow in walking speed, complex in structure and high in manufacturing cost.

The invention content is as follows:

in order to develop a rubber crawler traveling system suitable for medium and large-sized agricultural machinery with severe operating conditions, large speed change range, large power and large bearing capacity, the invention provides a reversing gearbox mechanism with large transmission ratio, large bearing capacity, high reliability and simple and compact structure, which is used for driving a crawler driving wheel in the rubber crawler traveling system.

The technical scheme adopted by the invention for solving the technical problems is as follows: the reversing gearbox comprises a box body, an input end bevel gear, an input shaft, a driven bevel gear, an input shaft gearwheel, an input shaft pinion, a transmission shaft driven gearwheel, a transmission shaft driven pinion, a transmission shaft driving gearwheel, a transmission shaft driving pinion, an output shaft gearwheel, an output shaft pinion, a support bearing and the like. An input end bevel gear and a driven bevel gear which are meshed with each other are arranged in the box body, the driven bevel gear is arranged on an input shaft, power is transmitted by the input end bevel gear to drive the driven bevel gear to rotate, the input shaft is further driven to rotate together with an input shaft gear wheel and an input shaft pinion which are arranged on the input shaft, a transmission shaft is driven to rotate through the meshing of the input shaft gear wheel and the transmission shaft driven pinion or the meshing of the input shaft pinion and the transmission shaft driven gear wheel, then an output shaft is driven to rotate through the meshing of the transmission shaft driving gear wheel and the output shaft pinion or the meshing of the transmission shaft driving pinion and. The input shaft, the transmission shaft and the output shaft are parallel to each other, so that the angle between the input bevel gear and the driven bevel gear is the angle between the input end and the output end of the reversing gearbox, the angle is usually 90 degrees, and the angle can be changed according to the structural requirement. The output shaft can obtain different rotating speeds through the arrangement and combination of the input shaft, the transmission shaft and the gears on the output shaft, the speed change function of the reversing gearbox is realized, and the number of the transmission shafts can be increased or reduced according to the rotating speed adjusting range required by the output shaft, so that the output revolution of the output end is correspondingly increased or reduced.

The invention has the beneficial effects that: the reversing gearbox can realize the functions of reversing and speed changing simultaneously, has simple and compact structure, high stability and strong bearing capacity, can realize multi-gear speed changing, is suitable for rubber track walking systems of medium and large agricultural machinery with severe operating conditions, large speed changing range, large power and large bearing capacity, is used for driving track driving wheels, and can also be used in any mechanical transmission systems with the same performance requirements and structure requirements.

Description of the drawings:

the invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic diagram of the general architecture of an embodiment of the present invention;

in the figure, 1, a box body, 2, an input end bevel gear, 3, an input shaft, 4, an input shaft gearwheel, 5, a driven bevel gear, 6, an input shaft pinion, 7, a transmission shaft driven gearwheel, 8, a transmission shaft, 9, a transmission shaft driven pinion, 10, a transmission shaft driving gearwheel, 11, a transmission shaft driving pinion, 12, an output shaft pinion, 13, an output shaft, 14, an output shaft gearwheel, 15, a supporting bearing, 16, a positioning sleeve, 17, a wear-resistant sleeve, 18, an outer gear ring, 19, an inner gear ring, 20, an end cover, 21 and an end cover bearing.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in detail below with reference to the accompanying drawings and embodiments, and it should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

The technical scheme adopted by the invention for solving the technical problems is as follows: the reversing gearbox comprises a box body 1, an input end bevel gear 2, an input shaft 3, an input shaft large gear 4, a driven bevel gear 5, an input shaft small gear 6, a transmission shaft driven large gear 7, a transmission shaft 8, a transmission shaft driven small gear 9, a transmission shaft driving large gear 10, a transmission shaft driving small gear 11, an output shaft small gear 12, an output shaft 13, an output shaft large gear 14, a supporting bearing 15, a positioning sleeve 16, a wear-resistant sleeve 17, an outer gear ring 18, an inner gear ring 19, an end cover 20, an end cover bearing 21 and the like. An end cover 20, an end cover bearing 21 and an input end bevel gear 2 are arranged on one side end face of the box body 1, an input shaft 3, a transmission shaft 8 and an output shaft 13 are arranged on the other side of the box body 1 through a supporting bearing 15, and the three shafts are parallel to each other and are vertical to the axial direction of the input end bevel gear 2. The input shaft 3 is provided with a driven bevel gear 5, an input shaft gearwheel 4 and an input shaft pinion 6, power is transmitted by the input end bevel gear 2, and the driven bevel gear 5 drives the input shaft 3, the input shaft gearwheel 4 and the input shaft pinion 6 to rotate together. When the outer gear ring 18 on the transmission shaft 8 slides leftwards and is combined with the driven large gear 7 of the transmission shaft, power drives the transmission shaft 8 to rotate through the outer gear ring 18 and the inner gear ring 19, the revolution of the transmission shaft 8 is the revolution of the driven large gear 7 of the transmission shaft, and the driven small gear 9 of the transmission shaft idles on the wear-resistant sleeve 17 and does not transmit power; when the outer gear ring 18 on the transmission shaft 8 slides rightwards and is combined with the driven pinion 9 of the transmission shaft, power drives the transmission shaft 8 to rotate through the outer gear ring 18 and the inner gear ring 19, the revolution number of the transmission shaft 8 is the revolution number of the driven pinion 9 of the transmission shaft, and the driven bull gear 7 of the transmission shaft idles on the wear-resistant sleeve 17 and does not transmit power. The drive gearwheel 10 and the drive pinion 11 of the drive shaft rotate synchronously with the drive shaft 8. When the outer gear ring 18 on the output shaft 13 slides leftwards and is combined with the output shaft pinion 12, power drives the output shaft 13 to rotate through the outer gear ring 18 and the inner gear ring 19, the revolution of the output shaft 13 is the revolution of the output shaft pinion 12, and the output shaft bull gear 14 idles on the wear-resistant sleeve 17 and does not transmit power; when the outer gear ring 18 on the output shaft 13 slides rightwards and is combined with the output shaft big gear 14, power drives the output shaft 13 to rotate through the outer gear ring 18 and the inner gear ring 19, the revolution of the output shaft 13 is the revolution of the output shaft big gear 14, the output shaft small gear 12 idles on the wear-resistant sleeve 17, and power is not transmitted. Through the arrangement and combination of the gears on the input shaft 3, the transmission shaft 8 and the output shaft 13, the output shaft can obtain four different rotating speeds, and the four-gear speed change is realized. The wear-resistant sleeve 17 can be replaced by a needle bearing of a corresponding type according to requirements.