阅读说明：本技术 微型折弯半喂入联合收割机变速箱 (Miniature bending semi-feeding combine harvester gearbox ) 是由 何嘉俊 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种微型折弯半喂入联合收割机变速箱,其包括主箱体和设置在主箱体底部的第一副箱体；主箱体上设置有水平布置的第一轴,第一轴的一端设置有第一齿轮,所述第一轴为动力输入轴；主箱体上还设置有与输入轴平行的第二轴、第三轴、第四轴、第五轴和第六轴；第一副箱体上设置有竖直布置的第十轴、第十一轴和轴套。本发明通过第八轴、第九轴和第十二轴将动力输出,从而将动力传向微型折弯半喂入联合收割机,其包括禾杆扶持机构、禾杆割断机构、稻穗折弯机构、禾杆横排机构、脱粒机构和行走机构。其第十二轴与轴套上下滑动配合,使得主箱体和第一副箱体及其内部结构能整体沿第十二轴上下滑动,从而能满足联合收割机机架整体的升降调节需求。(The invention discloses a gearbox of a miniature bending semi-feeding combine harvester, which comprises a main box body and a first auxiliary box body arranged at the bottom of the main box body; a first shaft which is horizontally arranged is arranged on the main box body, a first gear is arranged at one end of the first shaft, and the first shaft is a power input shaft; the main box body is also provided with a second shaft, a third shaft, a fourth shaft, a fifth shaft and a sixth shaft which are parallel to the input shaft; the first auxiliary box body is provided with a tenth shaft, a tenth shaft and a shaft sleeve which are vertically arranged. The invention outputs power through the eighth shaft, the ninth shaft and the twelfth shaft, thereby transmitting the power to the miniature bending semi-feeding combine harvester, which comprises a straw supporting mechanism, a straw cutting mechanism, a rice ear bending mechanism, a straw transverse-row mechanism, a threshing mechanism and a traveling mechanism. The twelfth shaft and the shaft sleeve are in up-and-down sliding fit, so that the main box body, the first auxiliary box body and the internal structure of the main box body and the first auxiliary box body can integrally slide up and down along the twelfth shaft, and the integral lifting regulation requirement of the frame of the combine harvester can be met.)

1. Miniature half-feeding combine gearbox of bending, its characterized in that:

comprises a main box body and a first auxiliary box body arranged at the bottom of the main box body; a first shaft which is horizontally arranged is arranged on the main box body, a first gear is arranged at one end of the first shaft, and the first shaft is a power input shaft;

the main box body is also provided with a second shaft, a third shaft, a fourth shaft, a fifth shaft and a sixth shaft which are parallel to the input shaft; a second gear and a third gear are arranged on the second shaft, and the second gear is meshed with the first gear; a fourth gear and a fifth gear are arranged on the third shaft, and the fourth gear is meshed with the third gear; a sixth gear and a seventh gear are arranged on the fourth shaft, the sixth gear is meshed with the fifth gear, the seventh gear is in sliding fit with the fourth shaft along the axial direction, and a first control arm for controlling the seventh gear to move along the fourth shaft is further arranged on the main box body; an eighth gear is arranged on the fifth shaft and is a reverse gear carrier gear; a ninth gear, a tenth gear and an eleventh gear are arranged on the sixth shaft, the ninth gear is meshed with the eighth gear, and the eleventh gear is a horn gear;

the main box body is also provided with a seventh shaft, an eighth shaft and a ninth shaft which are parallel to the input shaft, one end of the eighth shaft extends out of one side of the main box body, one end of the ninth shaft extends out of the other side of the main box body, the eighth shaft and the ninth shaft are power output shafts, the power output by the eighth shaft is transmitted to a threshing mechanism, a rice ear bending mechanism, a straw transverse-row mechanism and a straw cutting mechanism of the miniature bending semi-feeding combine harvester, and the power output by the ninth shaft is transmitted to a straw supporting mechanism; a twelfth gear and a thirteenth gear are arranged on the seventh shaft, and the twelfth gear is meshed with the first gear; a fourteenth gear, a clutch gear sleeve and a fifteenth gear are arranged on the eighth shaft, the fourteenth gear is in rotating fit with the eighth shaft, the fourteenth gear is meshed with the thirteenth gear, and clutch grooves are formed in the fourteenth gear and are distributed along the circumferential direction; the clutch gear sleeve is fixedly matched with the eighth shaft in the circumferential direction and is in sliding fit with the eighth shaft in the axial direction; a sixteenth gear is arranged on the ninth shaft and meshed with the fifteenth gear; the main box body is also provided with a second control arm, and the second control arm is used for pushing the clutch gear sleeve to axially move along the eighth shaft so that the clutch teeth of the clutch gear sleeve are inserted into or pulled out of the clutch groove on the fourteenth gear;

a tenth shaft, a tenth shaft and a shaft sleeve which are vertically arranged are arranged on the first auxiliary box body, a seventeenth gear and an eighteenth gear are arranged on the tenth shaft, the seventeenth gear is a horn gear, and the seventeenth gear is meshed with the eleventh gear; a nineteenth gear is arranged on the eleventh shaft, and the nineteenth gear is meshed with the eighteenth gear; the two ends of the shaft sleeve are arranged on the first auxiliary box body and are in running fit with the first auxiliary box body, a twentieth gear is arranged on the shaft sleeve and is meshed with the nineteenth gear, a twelfth shaft which is in up-and-down sliding fit with the shaft sleeve is arranged in the shaft sleeve, the twelfth shaft is a power output shaft, and power output by the twelfth shaft is transmitted to the traveling mechanism.

2. The miniature bending semi-feeding combine harvester gearbox as claimed in claim 1, wherein: and the eighth shaft is provided with a twenty-first gear and a twenty-second gear on the axial extension section outside the main box body, the twenty-first gear and the twenty-second gear are corner gears, the twenty-first gear transmits power to the roller through meshing teeth of the twenty-first gear, and the twenty-second gear transmits power to the rice ear bending mechanism through meshing of the twenty-first gear.

3. The miniature bending semi-feeding combine harvester gearbox as claimed in claim 1, wherein: and a ninth shaft is arranged on an axial extension section outside the main box body and is provided with a chain wheel for transmitting power to the straw holding mechanism.

Technical Field

The invention relates to the technical field of miniature combine harvesters, in particular to a gearbox of a miniature combine harvester.

Background

A miniature bending semi-feeding combine harvester comprises a straw supporting mechanism, a straw cutting mechanism, a rice ear bending mechanism, a straw transverse-row mechanism, a threshing mechanism, a traveling mechanism and the like, wherein 1, how to transmit power to the mechanisms is a technical problem; 2. how to realize the power cut-off and input of the straw supporting mechanism, the straw cutting mechanism, the rice ear bending mechanism, the straw transverse-row mechanism and the threshing mechanism and the separation control of the power of the mechanisms and the walking mechanism is a technical problem; 3. it is another technical challenge to implement forward and reverse power switching overrides of the travel mechanism.

Disclosure of Invention

In view of the above, the present invention provides a gearbox of a miniature bending semi-feeding combine harvester, so as to solve the technical problem that 1, the miniature bending semi-feeding combine harvester is used for conveying power to a straw supporting mechanism, a straw cutting mechanism, a rice ear bending mechanism, a straw transverse-row mechanism, a threshing mechanism and a travelling mechanism; 2. the technical problems of how to realize the power cutting and input of the straw supporting mechanism, the straw cutting mechanism, the rice ear bending mechanism, the straw transverse-row mechanism and the threshing mechanism and the power separation of the mechanisms and the travelling mechanism; 3. the technical problem of how to realize the power switching of forward and backward of the walking mechanism is solved.

The invention relates to a gearbox of a miniature bending semi-feeding combine harvester, which comprises a main box body and a first auxiliary box body arranged at the bottom of the main box body; a first shaft which is horizontally arranged is arranged on the main box body, a first gear is arranged at one end of the first shaft, and the first shaft is a power input shaft;

the main box body is also provided with a second shaft, a third shaft, a fourth shaft, a fifth shaft and a sixth shaft which are parallel to the input shaft; a second gear and a third gear are arranged on the second shaft, and the second gear is meshed with the first gear; a fourth gear and a fifth gear are arranged on the third shaft, and the fourth gear is meshed with the third gear; a sixth gear and a seventh gear are arranged on the fourth shaft, the sixth gear is meshed with the fifth gear, the seventh gear is in sliding fit with the fourth shaft along the axial direction, and a first control arm for controlling the seventh gear to move along the fourth shaft is further arranged on the main box body; an eighth gear is arranged on the fifth shaft and is a reverse gear carrier gear; a ninth gear, a tenth gear and an eleventh gear are arranged on the sixth shaft, the ninth gear is meshed with the eighth gear, and the eleventh gear is a horn gear;

the main box body is also provided with a seventh shaft, an eighth shaft and a ninth shaft which are parallel to the input shaft, one end of the eighth shaft extends out of one side of the main box body, one end of the ninth shaft extends out of the other side of the main box body, the eighth shaft and the ninth shaft are power output shafts, the power output by the eighth shaft is transmitted to a threshing mechanism, a rice ear bending mechanism, a straw transverse-row mechanism and a straw cutting mechanism of the miniature bending semi-feeding combine harvester, and the power output by the ninth shaft is transmitted to a straw supporting mechanism; a twelfth gear and a thirteenth gear are arranged on the seventh shaft, and the twelfth gear is meshed with the first gear; a fourteenth gear, a clutch gear sleeve and a fifteenth gear are arranged on the eighth shaft, the fourteenth gear is in rotating fit with the eighth shaft, the fourteenth gear is meshed with the thirteenth gear, and clutch grooves are formed in the fourteenth gear and are distributed along the circumferential direction; the clutch gear sleeve is fixedly matched with the eighth shaft in the circumferential direction and is in sliding fit with the eighth shaft in the axial direction; a sixteenth gear is arranged on the ninth shaft and meshed with the fifteenth gear; the main box body is also provided with a second control arm, and the second control arm is used for pushing the clutch gear sleeve to axially move along the eighth shaft so that the clutch teeth of the clutch gear sleeve are inserted into or pulled out of the clutch groove on the fourteenth gear;

a tenth shaft, a tenth shaft and a shaft sleeve which are vertically arranged are arranged on the first auxiliary box body, a seventeenth gear and an eighteenth gear are arranged on the tenth shaft, the seventeenth gear is a horn gear, and the seventeenth gear is meshed with the eleventh gear; a nineteenth gear is arranged on the eleventh shaft, and the nineteenth gear is meshed with the eighteenth gear; the two ends of the shaft sleeve are arranged on the first auxiliary box body and are in running fit with the first auxiliary box body, a twentieth gear is arranged on the shaft sleeve and is meshed with the nineteenth gear, a twelfth shaft which is in up-and-down sliding fit with the shaft sleeve is arranged in the shaft sleeve, the twelfth shaft is a power output shaft, and power output by the twelfth shaft is transmitted to the traveling mechanism.

Further, the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft, the eighth shaft and the ninth shaft are respectively arranged on the main box body through bearings, and the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft, the eighth shaft and the ninth shaft are respectively matched with inner holes of gears on the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft, the eighth shaft and the ninth shaft through spline teeth;

furthermore, the tenth shaft, the eleventh shaft and the shaft sleeve are arranged on the first auxiliary box body through bearings respectively, the tenth shaft and the eleventh shaft are matched with inner holes of gears on the tenth shaft and the eleventh shaft through spline teeth respectively, the shaft sleeve and the twentieth gear are connected integrally, and the twelfth shaft is a hexagonal shaft with a regular hexagon cross section.

Furthermore, a twenty-first gear and a twenty-second gear are arranged on the axial extension section of the eighth shaft, which is positioned outside the main box body, the twenty-first gear and the twenty-second gear are corner gears, the twenty-first gear transmits power to the roller through meshing teeth of the twenty-first gear, and the twenty-second gear transmits power to the rice ear bending mechanism through meshing of the twenty-second gear.

Furthermore, a chain wheel for transmitting power to the straw supporting mechanism is arranged on an axial extension section of the ninth shaft, which is positioned outside the main box body.

The invention has the beneficial effects that:

1. the invention relates to a gearbox of a miniature bending semi-feeding combine harvester, which is connected with power output by an engine through an input shaft, outputs the power through an eighth shaft, a ninth shaft and a twelfth shaft, and transmits the power to the miniature bending semi-feeding combine harvester.

2. The invention relates to a gearbox of a miniature bending semi-feeding combine harvester, which can control a clutch gear sleeve to move on a fourth shaft through a second control arm, so that power transmitted to an eighth shaft and a ninth shaft can be output from the eighth shaft and the ninth shaft or cut off according to control power, and thus, the power cut-off and input of a straw holding mechanism, a straw cutting mechanism, a rice ear bending mechanism, a straw transverse-row mechanism and a threshing mechanism are realized, and the mechanisms and a travelling mechanism are respectively controlled in power transmission.

3. The invention relates to a gearbox of a miniature bending semi-feeding combine harvester, which utilizes a first control arm to control a seventh gear to move along a fourth shaft. When the seventh gear is shifted to be meshed with the tenth gear, the harvester moves forwards; when the seventh gear is shifted to be meshed with the eighth gear, the harvester moves backwards; thereby solving the technical problem of controlling the forward and backward of the walking mechanism.

4. The gearbox of the miniature bending semi-feeding combine harvester has the advantages of short power transmission chain, high structural reliability, compact layout structure and the like.

Drawings

FIG. 1 is a schematic perspective view of a gearbox of a miniature bending semi-feeding combine harvester;

FIG. 2 is a schematic view of another perspective structure of a gearbox of the miniature bending semi-feeding combine harvester;

FIG. 3 is a perspective view of the internal structure of the transmission;

FIG. 4 is another perspective view of the internal structure of the transmission;

FIG. 5 is a schematic view of the engagement of the clutch sleeve and the fourteenth gear;

FIG. 6 is another view of the engagement of the clutch sleeve and the fourteenth gear

FIG. 7 is a schematic view of a power transmission path of a gearbox of the miniature bending semi-feeding combine harvester;

FIG. 8 is a perspective view of the second range box;

fig. 9 is an internal structural view of the second sub-transmission.

Detailed Description

The invention is further described below with reference to the figures and examples.

As shown in the figure, the miniature bending semi-feeding combine harvester gearbox of the embodiment comprises a main box body 1 and a first auxiliary box body 2 arranged at the bottom of the main box body; the main box body is provided with a first shaft 3 which is horizontally arranged, one end of the first shaft is provided with a first gear 4, and the first shaft is a power input shaft. In this embodiment, a pulley 5 is provided at one end of the first shaft located outside the main case, and power output from the engine is transmitted to the input shaft of the transmission case through the pulley and the transmission belt.

The main box body is also provided with a second shaft 6, a third shaft 7, a fourth shaft 8, a fifth shaft 9 and a sixth shaft 10 which are parallel to the input shaft. A second gear 11 and a third gear 12 are arranged on the second shaft, and the second gear is meshed with the first gear; a fourth gear 13 and a fifth gear 14 are arranged on the third shaft, and the fourth gear is meshed with the third gear; a sixth gear 15 and a seventh gear 16 are arranged on the fourth shaft, the sixth gear is meshed with the fifth gear, the seventh gear is in sliding fit with the fourth shaft along the axial direction, and a first control arm 17 for controlling the seventh gear to move along the fourth shaft is further arranged on the main box body; an eighth gear 18 is arranged on the fifth shaft and is a reverse gear carrier gear; a ninth gear 19, a tenth gear 20 and an eleventh gear 21 are arranged on the sixth shaft, the ninth gear is meshed with the eighth gear, and the eleventh gear is a horn gear. The first control arm 17 includes a first pin 171 rotationally engaged with the main housing, a transmission plate 172 connected to the pin, and a second pin 173 connected to the transmission plate, one end of the seventh gear is provided with an annular groove, the second pin is inserted into the annular groove, and the seventh gear can be shifted to move along the fourth axis by rotating the first pin 171. When the seventh gear 16 is shifted into engagement with the tenth gear 20, the harvester travels forward; when the seventh gear is shifted into engagement with the eighth gear 18, the harvester travels backwards.

The main box body is also provided with a seventh shaft 22, an eighth shaft 23 and a ninth shaft 24 which are parallel to the input shaft, one end of the eighth shaft extends out of one side of the main box body, one end of the ninth shaft extends out of the other side of the main box body, the eighth shaft and the ninth shaft are power output shafts, the power output by the eighth shaft is transmitted to a threshing mechanism 25, an ear bending mechanism 26, a straw transverse row mechanism 27 and a straw cutting mechanism 28 of the miniature bending semi-feeding combine harvester, and the power output by the ninth shaft is transmitted to a straw supporting mechanism 29; a twelfth gear 30 and a thirteenth gear 31 are arranged on the seventh shaft, and the twelfth gear is meshed with the first gear; a fourteenth gear 32, a clutch gear sleeve 59 and a fifteenth gear 33 are arranged on the eighth shaft, the fourteenth gear is in rotating fit with the eighth shaft, the fourteenth gear is meshed with the thirteenth gear, and clutch grooves 321 which are all arranged along the circumferential direction are formed in the fourteenth gear; the clutch gear sleeve is fixedly matched with the eighth shaft in the circumferential direction and is in sliding fit with the eighth shaft in the axial direction; a sixteenth gear 34 is arranged on the ninth shaft and meshed with the fifteenth gear; the main box body is also provided with a second control arm 35, the structure of the second control arm is the same as that of the first control arm, and the second control arm is used for pushing the clutch gear sleeve to move axially along the eighth shaft so that the clutch teeth of the clutch gear sleeve are inserted into or pulled out of the clutch groove on the fourteenth gear.

When the clutch teeth are inserted into the clutch grooves on the fourteenth gear, the power is transmitted from the thirteenth gear to the fourteenth gear, then from the fourteenth gear to the eighth shaft, then from the eighth shaft to the fifteenth gear, then from the fifteenth gear to the sixteenth gear, then from the sixteenth gear to the ninth shaft, and then the power is output from the eighth shaft and the ninth shaft. When the clutch teeth are pulled out of the clutch grooves of the fourteenth gear, the fourteenth gear idles on the eighth shaft, and the power transmission to the eighth shaft and the ninth shaft is cut off.

A tenth shaft 36, a tenth shaft 37 and a shaft sleeve 38 which are vertically arranged are arranged on the first auxiliary box body, a seventeenth gear 39 and an eighteenth gear 40 are arranged on the tenth shaft, the seventeenth gear is a horn gear, and the seventeenth gear is meshed with the eleventh gear; a nineteenth gear 41 is arranged on the eleventh shaft, and the nineteenth gear is meshed with the eighteenth gear; the two ends of the shaft sleeve are arranged on the first auxiliary box body and are in running fit with the first auxiliary box body, a twentieth gear 42 is arranged on the shaft sleeve, the twentieth gear is meshed with the nineteenth gear, a twelfth shaft 43 in up-and-down sliding fit with the shaft sleeve is arranged in the shaft sleeve, the twelfth shaft is a power output shaft, and power output by the twelfth shaft is transmitted to the traveling mechanism 44.

In this embodiment, the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft, the eighth shaft and the ninth shaft are respectively arranged on the main box body through bearings, and the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft, the sixth shaft, the seventh shaft, the eighth shaft and the ninth shaft are respectively matched with inner holes of gears thereon through spline teeth; except that the seventh gear can move along the axial direction, the rest gears are fixed on the shaft.

The tenth shaft, the eleventh shaft and the shaft sleeve are arranged on the first auxiliary box body through bearings respectively, the tenth shaft and the eleventh shaft are matched with inner holes of gears on the tenth shaft and the eleventh shaft through spline teeth respectively, the shaft sleeves and the twentieth gear are integrally connected, and the twelfth shaft is a hexagonal shaft with a regular hexagon cross section.

In this embodiment, the eighth shaft is provided with a twenty-first gear 45 and a twenty-second gear 46 on the axial extension section outside the main box, the twenty-first gear and the twenty-second gear are angular gears, the twenty-first gear transmits power to the drum through meshing teeth thereof, and the twenty-second gear transmits power to the ear bending mechanism through meshing teeth thereof. The ear bending mechanism transmits power to the straw row mechanism 27 and the straw cutting mechanism 28 through the vertical shaft 47. And the front end of the axial extension section of the eighth shaft, which is positioned outside the main box body, is also provided with a chain wheel 60, the chain wheel is used for driving a conveying chain 61, and the conveying chain is used for clamping the rice ears to move along the axial direction of the threshing cylinder.

The gearbox of the miniature bending semi-feeding combine harvester in the embodiment further comprises a second auxiliary box body 48 positioned above the main box body, a thirteenth shaft 49, a fourteenth shaft 50 and a fifteenth shaft 51 are arranged in the second auxiliary box body, the thirteenth shaft, the fourteenth shaft and the fifteenth shaft are arranged on the second auxiliary box body through bearings, the thirteenth shaft and the fourteenth shaft are horizontally arranged, the thirteenth shaft is perpendicular to the fourteenth shaft, the fifteenth shaft is obliquely arranged, and the fifteenth shaft is perpendicular to the fourteenth shaft; the front end of a thirteenth shaft is positioned in the second box body, the rear end of the twelfth shaft is positioned outside the second box body, the rear end of a twelfth shaft is positioned in the second box body, and the front end of the eleventh shaft is positioned outside the second box body; a driving chain wheel 52 is arranged on a shaft section of the ninth shaft, which is positioned outside the main box body, a driven chain wheel 53 is arranged at the rear end of the thirteenth shaft, the driving chain wheel is connected with the driven chain wheel through a chain 54, a twenty-third gear 55 is arranged at the front end of the twelfth shaft, a twenty-fourth gear 56 is arranged on the twelfth shaft, a twenty-fifth gear 57 is arranged at the rear end of the twelfth shaft, the twenty-third gear, the twenty-fourth gear and the twenty-fifth gear are angle gears, the twenty-third gear is meshed with the twenty-fourth gear, and the twenty-fourth gear is meshed with the twenty-fifth gear. The power output by the ninth shaft is transmitted to the thirteenth shaft through the chain wheel and chain mechanism, and then transmitted to the straw holding mechanism 29 through the fifteenth shaft. In this embodiment, the second sub-housing 48 serves not only as a housing of the second sub-gearbox but also as a structural member of the frame, and serves to connect and support the straw-supporting mechanism and the shielding plate 58 of the threshing device.

In the embodiment, the gear box of the miniature bending semi-feeding combine harvester is connected with power output by an engine through an input shaft, and outputs the power through an eighth shaft, a ninth shaft and a twelfth shaft, so that the power is transmitted to the miniature bending semi-feeding combine harvester. And the clutch tooth sleeve can be controlled by the second control arm to move in a fourth shaft, so that power transmitted to the eighth shaft and the ninth shaft can be output from the eighth shaft and the ninth shaft or cut off according to control power, and power cut-off and input of the straw holding mechanism, the straw cutting mechanism, the rice ear bending mechanism, the straw transverse mechanism and the threshing mechanism are realized, and the mechanisms and the travelling mechanism are respectively controlled in power transmission. The twelfth shaft and the shaft sleeve are in up-and-down sliding fit, so that the main box body, the first auxiliary box body and the internal structure of the main box body and the first auxiliary box body can integrally slide up and down along the twelfth shaft, and therefore the integral lifting adjustment of the frame of the miniature bending semi-feeding combine harvester can be met, and the operation requirements on straws with different heights can be met.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.