阅读说明：本技术 一种半履带式联合收获机用同轴增速装置 (Coaxial speed increasing device for half-crawler type combine harvester ) 是由 闫胜民 周宝林 曹阳 于 2020-11-12 设计创作，主要内容包括：本发明公开了一种半履带式联合收获机用同轴增速装置,该装置包括壳体,所述壳体用于承载各部件；输入轴,所述输入轴与所述壳体相铰接,所述输入轴上形成有刚性连接的第一齿轮,所述输入轴位于所述壳体外部的一端用于与原车中间变速箱输出端相连。本申请提供的半履带式联合收获机用同轴增速装置,结构简单合理,可以串联在前桥左右轮边减速器和前桥中间变速箱间的左右传动轴上,用来提升前桥左右轮边减速器的输出转速,最终实现半履带式联合收获机的行驶速度与装配轮胎相同,提高了联合收获机在装配半履带的情况下的收获效率,它安装方便、操作简单,值得大规模推广应用。(The invention discloses a coaxial speed increasing device for a half-crawler type combine harvester, which comprises a shell, wherein the shell is used for bearing all parts; the input shaft is hinged to the shell, a first gear in rigid connection is formed on the input shaft, and one end, located outside the shell, of the input shaft is used for being connected with the output end of an original vehicle intermediate gearbox. The application provides a coaxial accelerating device for half-track type combine harvester, simple structure is reasonable, can establish ties on the transmission shaft about between the gearbox about wheel reduction gear and front axle about the front axle, be used for promoting the output rotational speed of wheel reduction gear about the front axle, the final speed of traveling that realizes half-track type combine harvester is the same with the assembly tire, the results efficiency of combine harvester under the condition of assembling half track has been improved, and the installation is convenient, and easy operation is worth popularizing and applying on a large scale.)

1. The utility model provides a coaxial speed increasing device for half crawler-type combine harvester which characterized in that includes:

a housing for carrying components;

the input shaft is hinged with the shell, a first gear in rigid connection is formed on the input shaft, and one end of the input shaft, which is positioned outside the shell, is used for being connected with the output end of an original vehicle intermediate gearbox;

the output shaft is hinged with the shell and is coaxially arranged with the input shaft, a second gear in rigid connection is formed on the output shaft, and one end of the output shaft, which is positioned outside the shell, is used for being connected with the input end of a wheel reduction gear of an original vehicle;

the two ends of the intermediate shaft are hinged with the shell respectively, and the intermediate shaft, the input shaft and the output shaft are arranged in the same axial direction; a third gear and a fourth gear which are rigidly connected are formed on the intermediate shaft;

the first gear is in meshed connection with the third gear, and the second gear is in meshed connection with the fourth gear; the transmission ratio of the first gear to the third gear is less than 1, and the transmission ratio of the fourth gear to the second gear is not more than 1.

2. The coaxial speed increasing device for the semi-crawler type combine harvester according to claim 1, wherein the transmission ratio of the fourth gear to the second gear is less than 1.

3. The coaxial speed increasing device for the semi-crawler type combine harvester according to claim 1, wherein a spacer sleeve is arranged between the third gear and the fourth gear.

4. The coaxial speed increasing device for the semi-crawler type combine harvester according to claim 1, wherein the output shaft and the input shaft are arranged coaxially.

5. The coaxial speed increasing device for the semi-crawler type combine harvester according to claim 1, wherein the external spline at one end of the input shaft, which is positioned outside the shell, is connected with the external spline contained at the output end of the original intermediate gearbox through a spline sleeve.

6. The coaxial speed increasing device for the semi-crawler type combined harvester according to claim 1, wherein one end of the output shaft, which is positioned outside the shell, is connected with an external spline at the input end of the wheel reduction gear of the original vehicle through an internal spline.

7. The coaxial speed increasing device for the semi-crawler type combined harvester according to claim 1, wherein a lifting lug is formed on the housing.

8. The coaxial speed increasing device for the semi-crawler type combine harvester according to claim 1, wherein a vent cap is formed on the housing.

9. The coaxial speed increasing device for the semi-crawler type combined harvester according to claim 1, wherein the two ends of the shell are sealed by a cover plate and a gland.

Technical Field

The invention relates to the technical field of mechanical accessory parts, in particular to a coaxial speed increasing device for a half-crawler type combine harvester.

Background

A combine harvester is a machine which can complete the operations of harvesting, threshing, separating, cleaning and the like of grains at the same time and finally obtain clean grains. The combine harvester generally comprises a header, a threshing system (including threshing, separating and cleaning devices), a conveying, rotating and traveling device, a grain compartment, an operating mechanism and the like. The combined harvester can greatly improve the labor productivity and reduce the labor intensity. The power configuration mode can be divided into a traction type, a self-propelled type and a suspension type.

After the existing combine harvester is assembled with the half-track, although the passing performance of the combine harvester can be greatly improved, the running speed of the combine harvester after the half-track is modified is reduced compared with that of a wheel type combine harvester due to the limitation of the structural form of the half-track.

Disclosure of Invention

The invention provides a coaxial speed increasing device for a half-crawler type combine harvester.

The invention provides the following scheme:

a coaxial speed increasing device for a half-track type combine harvester comprises:

a housing for carrying components;

the input shaft is hinged with the shell, a first gear in rigid connection is formed on the input shaft, and one end of the input shaft, which is positioned outside the shell, is used for being connected with the output end of an original vehicle intermediate gearbox;

the output shaft is hinged with the shell and is coaxially arranged with the input shaft, a second gear in rigid connection is formed on the output shaft, and one end of the output shaft, which is positioned outside the shell, is used for being connected with the input end of a wheel reduction gear of an original vehicle;

the two ends of the intermediate shaft are hinged with the shell respectively, and the intermediate shaft, the input shaft and the output shaft are arranged in the same axial direction; a third gear and a fourth gear which are rigidly connected are formed on the intermediate shaft;

the first gear is in meshed connection with the third gear, and the second gear is in meshed connection with the fourth gear; the transmission ratio of the first gear to the third gear is less than 1, and the transmission ratio of the fourth gear to the second gear is not more than 1.

Preferably: the transmission ratio of the fourth gear to the second gear is less than 1.

Preferably: and a spacing sleeve is arranged between the third gear and the fourth gear.

Preferably: the output shaft and the input shaft are arranged coaxially.

Preferably: and the external spline at one end of the input shaft, which is positioned outside the shell, is connected with the external spline contained at the output end of the original intermediate gearbox through a spline sleeve.

Preferably: and one end of the output shaft, which is positioned outside the shell, is connected with an external spline at the input end of the wheel reduction gear of the original vehicle through the internal spline.

Preferably: and a lifting lug is formed on the shell.

Preferably: a vent cap is formed on the housing.

Preferably: the two ends of the shell are sealed through the cover plate and the gland.

According to the specific embodiment provided by the invention, the invention discloses the following technical effects:

the coaxial speed increasing device for the semi-crawler type combine harvester can be realized through the invention, and in an implementation mode, the device can comprise a shell, wherein the shell is used for bearing all parts; the input shaft is hinged with the shell, a first gear in rigid connection is formed on the input shaft, and one end of the input shaft, which is positioned outside the shell, is used for being connected with the output end of an original vehicle intermediate gearbox; the output shaft is hinged with the shell and is coaxially arranged with the input shaft, a second gear in rigid connection is formed on the output shaft, and one end of the output shaft, which is positioned outside the shell, is used for being connected with the input end of a wheel reduction gear of an original vehicle; the two ends of the intermediate shaft are hinged with the shell respectively, and the intermediate shaft, the input shaft and the output shaft are arranged in the same axial direction; a third gear and a fourth gear which are rigidly connected are formed on the intermediate shaft; the first gear is in meshed connection with the third gear, and the second gear is in meshed connection with the fourth gear; the transmission ratio of the first gear to the third gear is less than 1, and the transmission ratio of the fourth gear to the second gear is not more than 1. The application provides a coaxial accelerating device for half-track type combine harvester, simple structure is reasonable, can establish ties on the transmission shaft about between the gearbox about wheel reduction gear and front axle about the front axle, be used for promoting the output rotational speed of wheel reduction gear about the front axle, the final speed of traveling that realizes half-track type combine harvester is the same with the assembly tire, the results efficiency of combine harvester under the condition of assembling half track has been improved, and the installation is convenient, and easy operation is worth popularizing and applying on a large scale.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a cross-sectional view of a coaxial speed increasing device for a half-track combine harvester according to an embodiment of the invention;

fig. 2 is an axial view of a coaxial speed increasing device for a half-track type combine harvester provided by the embodiment of the invention.

In the figure: the device comprises a shell 1, an input shaft 2, a first gear 3, an output shaft 4, a second gear 5, an intermediate shaft 6, a third gear 7, a fourth gear 8, a spacer sleeve 9, a hoisting lug 10, a ventilation cap 11, a cover plate 12, a gland 13 and a bearing 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Examples

Referring to fig. 1 and 2, a coaxial speed increasing device for a half-track combine harvester is provided for an embodiment of the invention, as shown in fig. 1 and 2, the device comprises a housing 1, wherein the housing 1 is used for carrying various components; specifically, in order to facilitate the hoisting and installation of the device, hoisting lugs 10 are formed on the shell. In order to facilitate internal ventilation, a ventilation cap 11 is formed on the housing 1. The two ends of the housing 1 are sealed by a cover plate 12 and a gland 13.

The input shaft 2 is hinged with the shell 1, a first gear 3 in rigid connection is formed on the input shaft 2, and one end, located outside the shell 1, of the input shaft 2 is used for being connected with the output end of an original vehicle intermediate gearbox; specifically, the external spline at one end of the input shaft 2, which is positioned outside the shell 1, is connected with the external spline contained at the output end of the original vehicle intermediate gearbox through a spline housing.

The output shaft 4 is hinged with the shell 1 and is coaxially arranged with the input shaft 2, a second gear 5 in rigid connection is formed on the output shaft 4, and one end, located outside the shell 1, of the output shaft 4 is used for being connected with the input end of a wheel reduction gear of an original vehicle; specifically, one end of the output shaft, which is located outside the shell, is connected with an external spline at the input end of the wheel reduction gear of the original vehicle through the internal spline. In order to facilitate installation with each part of the original vehicle, the output shaft and the input shaft are arranged coaxially. The mode can ensure that the transmission shafts between the original vehicle intermediate gearbox and the wheel-side speed reducer are connected in series. The input shaft and the output shaft form an independent operation structure, and one ends of the input shaft and the output shaft, which are respectively positioned in the shell, can be respectively connected with the same bearing seat through bearings.

The two ends of the intermediate shaft 6 are hinged with the shell 1 respectively, and the intermediate shaft 6 and the input shaft are arranged in the direction of 2 and the same axis as the output shaft and in the direction of 4; a third gear 7 and a fourth gear 8 which are rigidly connected are formed on the intermediate shaft 6; in practical applications, a spacer 9 is disposed between the third gear 7 and the fourth gear 8 to facilitate mounting of the third gear 7 and the fourth gear 8.

Wherein the first gear 3 is in meshed connection with the third gear 7, and the second gear 5 is in meshed connection with the fourth gear 8; the transmission ratio of the first gear 3 to the third gear 7 is less than 1, and the transmission ratio of the fourth gear 8 to the second gear 5 is not more than 1. Further, in order to further increase the output rotation speed of the output shaft, the transmission ratio of the fourth gear 8 to the second gear 5 is less than 1.

The device that this application provided, the input shaft can drive rotatoryly through former car intermediate gearbox, and input shaft 2 drives first gear 3 rotatoryly, and first gear 3 drives third gear 7 rotatoryly, because the drive ratio of first gear 3 and third gear 7 is less than 1, consequently makes the rotational speed of third gear 7 be higher than the rotational speed of first gear 3, and the rotational speed of jackshaft 6 is higher than the rotational speed of input shaft 2 promptly. In a specific application, the pitch circle diameter of the first gear 3 may be larger than the pitch circle diameter of the third gear 7. When rotating, the third gear 7 drives the intermediate shaft to synchronously rotate, the intermediate shaft 6 drives the fourth gear 8 to synchronously rotate, the fourth gear 8 drives the second gear 5 to rotate, and the second gear 5 drives the output shaft 4 to synchronously rotate with the output shaft. Because the transmission ratio of the fourth gear 8 to the second gear 5 is not more than 1, the rotating speed of the second gear 5 is not lower than that of the fourth gear 8, and finally the purpose that the rotating speed of the output shaft 4 is higher than that of the input shaft 2 is achieved. In practical application, the transmission ratio between the fourth gear 8 and the second gear 5 may also be set to be smaller than 1 for the purpose of increasing the rotation speed of the output shaft, and specifically, the pitch diameter of the fourth gear 8 may be set to be larger than the pitch diameter of the second gear 5. Therefore, when the fourth gear 8 drives the second gear 5 to rotate, the rotating speed of the second gear 5 is greater than that of the fourth gear 8, so that the rotating speed of the output shaft 4 is greater than that of the intermediate shaft 6, and the rotating speed input by the input shaft 2 can be increased twice by adopting the mode. The rotating speed provided by the output shaft 4 to the hub reduction gear is greatly increased relative to the rotating speed provided by the original intermediate gearbox, and finally the purpose of improving the traveling speed of the semi-crawler type combined harvester is achieved.

The coaxial speed increasing device for the semi-crawler type combine harvester is characterized in that the speed increasing box is connected with the left and right transmission shafts between the left and right wheel side speed reducers of the front axle and the middle gearbox of the front axle in series, the output shaft of the speed increasing box is connected with the outer spline of the side speed reducing input shaft through an inner spline, the outer spline of the input shaft is connected with the outer spline of the transmission shaft connected with the output end of the middle gearbox of the original vehicle through a spline sleeve, and the speed increasing box is connected with the left and right transmission shafts respectively. The running stability of the vehicle is ensured.

In a word, the application provides a coaxial accelerating device for half-track formula combine harvester, simple structure is reasonable, can establish ties on the transmission shaft about between the gearbox of front axle middle gearbox and wheel reduction gear about the front axle, be used for promoting the output rotational speed of wheel reduction gear about the front axle, the final speed of traveling that realizes half-track formula combine harvester is the same with the assembly tire, the results efficiency of combine harvester under the condition of assembling half track has been improved, its simple to operate, easy operation, be worth popularizing and applying on a large scale.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.