CN215521897U

CN215521897U - Gearbox assembly of mini-tiller gearbox

Info

Publication number: CN215521897U
Application number: CN202121407993.6U
Authority: CN
Inventors: 窦思勇; 江伟
Original assignee: Chongqing Youyou Power Technology Co ltd
Current assignee: Chongqing Youyou Power Technology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-14
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a middle gearbox assembly of a mini-tiller gearbox body, which is provided with a middle gearbox, wherein the middle gearbox comprises a middle gearbox, the front end in the middle gearbox is provided with a spline sleeve, one end of the spline sleeve is matched with the output end of the last device, the other end of the spline sleeve is connected with one end of a main shaft B, the other end of the main shaft B is arranged on a rear cover of the middle gearbox, the main shaft B is sequentially provided with a gear G, a gear H and a shifter B from front to back, the shifter B comprises a shaft sleeve B, a counter shaft B is arranged below the main shaft B, the lower part of the rear cover of the middle gearbox is provided with a rotating hole, the counter shaft B is arranged in the rotating hole in a penetrating way, and the counter shaft B is sequentially provided with a gear I, a gear J, a gear K, a gear L and a gear M from front to back, meanwhile, the center of gravity of the mini-tiller with the structure transmission is lower, and the operation stability is enhanced.

Description

Gearbox assembly of mini-tiller gearbox

Technical Field

The utility model relates to the technical field of mini-tillers, in particular to a gearbox assembly of a mini-tillers middle box body.

Background

The mini-tiller is widely applied to dry land, paddy field, orchard and the like in plains, mountainous areas and hills, can be used for pumping water, generating electricity, spraying medicine, spraying and the like by matching with a corresponding machine tool, can also be used for towing a trailer for short-distance transportation, can be freely run in the field, is convenient for users to use and store, saves the trouble that large agricultural machinery cannot enter the field block of the mountainous area, is the best choice for vast farmers to replace cattle cultivation, has a complex structure of a gearbox of the existing mini-tiller, is inconvenient for the users to use, adopts chain or conveyor belt transmission in the existing mechanism, has poor transmission effect and is easy to slip.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gearbox assembly of a mini-tiller gearbox, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the middle gearbox assembly is provided with a middle speed changing device, the middle speed changing device comprises a middle speed changing box, the front end inside the middle speed changing box is provided with a spline sleeve, one end of the spline sleeve is matched with the output end of the last device, the other end of the spline sleeve is connected with one end of a main shaft B, the other end of the main shaft B is arranged on a rear cover of the middle speed changing box, a gear G, a gear H and a shifter B are sequentially arranged on the main shaft B from front to rear, the shifter B comprises a shaft sleeve B, a shifting tooth C, a shifting tooth D, a shifting tooth F and an adjusting groove B are sequentially arranged on the shaft sleeve B from front to rear, the side wall of the middle speed changing box is provided with an adjusting hole B, a shifting fork B penetrates through the adjusting hole B, the inner end of the shifting fork B abuts against the adjusting groove B, the outer end of the shifting fork B is connected with a shifting arm B, and an auxiliary shaft B is arranged below the main shaft B, the middle gearbox rear cover lower part is provided with a rotating hole, the auxiliary shaft B is arranged in the rotating hole in a penetrating mode, the auxiliary shaft B is sequentially provided with a gear I, a gear assembly B, a gear L and a gear M from front to back, the gear assembly B comprises a shaft sleeve G, a gear J and a gear K, the shaft sleeve G is arranged on the auxiliary shaft B, a bearing is further arranged between the shaft sleeve G and the auxiliary shaft B, the gear J and the gear K are sequentially arranged on the shaft sleeve G from front to back, the gear G is matched with the gear I, the gear H is matched with the gear J, the gear shifting tooth C is matched with the gear K, the gear shifting tooth D is matched with the gear L, and the gear shifting tooth F is matched with the gear M.

Preferably, one end of the auxiliary shaft B penetrating through the rotating hole is also provided with umbrella-shaped teeth E.

Compared with the prior art, the utility model has the beneficial effects that: the utility model adopts gear transmission, has light and simple structure, saves belts and chains, has simple and compact structure, enables the transmission of power to be more efficient, has more compact structure of the gearbox, has lower gravity center of the mini-tiller of the gearbox, enhances the operation stability, is also provided with multi-stage speed change, can realize one-stage multi-use, and is also provided with a bearing between the gear assembly B and the auxiliary shaft B on the auxiliary shaft B, can quickly reduce the speed and increase the reduction ratio.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and 2: a middle gearbox assembly of a mini-tiller gearbox is provided with a middle speed change device 1, the middle speed change device 1 comprises a middle gearbox 2, a spline housing 3 is arranged at the front end inside the middle gearbox 2, one end of the spline housing 3 is matched with the output end of the last device, the other end of the spline housing 3 is connected with one end of a main shaft B4, the other end of the main shaft B4 is arranged on a rear cover of the middle gearbox 2, a gear G5, a gear H6 and a shifter B7 are sequentially arranged on the main shaft B4 from front to rear, the shifter B7 comprises a shaft sleeve B701, a shift tooth C702, a shift tooth D703, a shift tooth F704 and an adjusting groove B are sequentially arranged on the shaft sleeve B701 from front to rear, an adjusting hole B8 is arranged on the side wall of the middle gearbox 2, a shift fork B9 is arranged in the adjusting hole B8 in a penetrating way, the inner end of the shift fork B9 abuts against the adjusting groove B705, the outer end of the shift fork B9 is connected with a shift arm B10, and a sub shaft B11 is arranged below the main shaft B4, a rotating hole 12 is formed in the lower portion of a rear cover of the transmission case 2, the auxiliary shaft B11 penetrates through the rotating hole 12, a gear I13, a gear assembly B20, a gear L16 and a gear M17 are sequentially arranged on the auxiliary shaft B11 from front to back, the gear assembly B20 comprises a shaft sleeve G21, a gear J14 and a gear K15, the shaft sleeve G21 is arranged on the auxiliary shaft B11, a bearing is further arranged between the shaft sleeve G21 and the auxiliary shaft B11, the gear J14 and the gear K15 are sequentially arranged on the shaft sleeve G21 from front to back, the gear G5 is matched with the gear I13, the gear H6 is matched with the gear J14, the gear C702 is matched with the gear K15, the gear D703 is matched with the gear L16, the gear F704 is matched with the gear M17, and one end, through the rotating hole 12, of the auxiliary shaft B11 is further provided with a bevel gear E18.

The working principle is as follows: the front end of a transmission case 2 is provided with a driving mechanism and a front transmission case, the rear end of the driving mechanism is connected with the front end of the front transmission case, the rear end of the front transmission case extends out of a main shaft A, the rear end of the main shaft A is provided with a latch, the latch of the main shaft A is matched with a spline sleeve 3 so as to drive the spline sleeve 3 to rotate, the spline sleeve 3 is connected with a main shaft B4 so as to drive a main shaft B4 to rotate, the main shaft B4 drives a gear G5, a gear H6 and a shifter B7 to rotate, a secondary shaft B11 is further arranged below the main shaft B4, a gear I13 and a gear J14 are arranged on the secondary shaft B11, the gear G5 and the gear I13 are always matched, the gear H6 and the gear J14 are always matched, so that the gear G5 and the gear H6 simultaneously drive the gear I13 and the gear J14 to rotate respectively, a shift arm B7 is pulled, a shift fork B9 is moved, and the fork B7 is simultaneously driven to move on the main shaft B7 axially, so as to realize the matching of shifting of a first-stage 7 and shifting arm 7 is moved, the gear shifting tooth D703 is matched with the gear L16 to realize two-stage speed change, the gear shifting arm B10 is pulled to move the gear shifting fork B9, the gear shifting tooth F704 is matched with the gear M17 to realize three-stage speed change, the countershaft B11 is also provided with a bevel tooth E18, and the bevel tooth E18 is matched with a rear driving mechanism.

Claims

1. Mini-tiller gearbox assembly, its characterized in that: the gear shifting device is provided with a middle speed changing device (1), the middle speed changing device (1) comprises a middle speed changing box (2), a spline sleeve (3) is arranged at the front end inside the middle speed changing box (2), one end of the spline sleeve (3) is matched with the output end of the last device, the other end of the spline sleeve (3) is connected with one end of a main shaft B (4), the other end of the main shaft B (4) is arranged on the rear cover of the middle speed changing box (2), a gear G (5), a gear H (6) and a gear shifter B (7) are sequentially arranged on the main shaft B (4) from front to back, the gear shifter B (7) comprises a shaft sleeve B (701), gear shifting teeth C (702), gear shifting teeth D (703), gear shifting teeth F (704) and an adjusting groove B (705) are sequentially arranged on the shaft sleeve B (701) from front to back, an adjusting hole B (8) is formed in the side wall of the middle speed changing box (2), and a gear shifting fork B (9) penetrates through the adjusting hole B (8), the inner end of the gear shifting fork B (9) is abutted against the adjusting groove B (705), the outer end of the gear shifting fork B (9) is connected with a gear shifting arm B (10), a countershaft B (11) is arranged below the main shaft B (4), a rotating hole (12) is formed in the lower portion of the rear cover of the middle gearbox (2), the countershaft B (11) is arranged in the rotating hole (12) in a penetrating manner, a gear I (13), a gear assembly B (20), a gear L (16) and a gear M (17) are sequentially arranged on the countershaft B (11) from front to back, the gear assembly B (20) comprises a shaft sleeve G (21), a gear J (14) and a gear K (15), the shaft sleeve G (21) is arranged on the countershaft B (11), a bearing is further arranged between the shaft sleeve G (21) and the countershaft B (11), the gear J (14) and the gear K (15) are sequentially arranged on the shaft sleeve G (21) from front to back, the gear G (5) is matched with the gear I (13), the gear H (6) is matched with the gear J (14), the gear shifting tooth C (702) is matched with the gear K (15), the gear shifting tooth D (703) is matched with the gear L (16), and the gear shifting tooth F (704) is matched with the gear M (17).

2. The mini-tiller gearbox assembly as defined in claim 1, wherein: and one end of the auxiliary shaft B (11) penetrating through the rotating hole (12) is also provided with umbrella-shaped teeth E (18).