CN219242568U - Gearbox of small mini-tiller - Google Patents

Abstract

A small mini-tiller gearbox relates to the field of power shift variable speed output, and a shaft A, a shaft B, a shaft C, a shaft D, a shaft E and a shaft F are arranged in the gearbox. The shaft A is sequentially provided with a gear A1, a gear A2 and a gear A3 from front to back, a first gear shifting fork is arranged on the gear A1, and a second gear shifting fork is arranged between the gear A2 and the gear A3. The shaft B is provided with a gear B1 and a gear B2 from front to back in sequence. The shaft C is provided with a gear C1, a gear C2, a gear C3 and a gear C4 from front to back in sequence. The shaft D is provided with a gear D1 and a gear D2 from front to back in sequence. The shaft E is sequentially provided with a gear E1, a gear E2 and a gear E3 from front to back, and steering separation shifting forks are arranged on the gear E1 and the gear E3. The shaft F is divided into a shaft Fa and a shaft Fb, the shaft Fa is provided with a gear F1, and the shaft Fb is provided with a gear F2. The utility model has compact structure, small volume, convenient operation, low failure rate, convenient maintenance and long service life.

Description

Gearbox of small mini-tiller

Technical Field

The utility model relates to the field of power shift variable speed output, in particular to a gearbox of a small mini-tiller.

Background

The mini-tiller uses a small diesel engine or a gasoline engine as power, and has the characteristics of light weight, small volume, simple structure and the like. The mini-tiller is widely applicable to dry lands, paddy fields, orchards and the like in plain, mountain areas and hills. The mini-tiller can be freely used in the field, is convenient for users to use and store, eliminates the trouble that large-scale agricultural machinery cannot enter mountain field blocks, and is the best choice for vast farmers to replace cow cultivation.

The existing mini-tiller, in particular to a gearbox of a small mini-tiller, is unreasonable in structural design, large in size and insufficient in gear lubrication, and because the mini-tiller works in a severe environment, parts in work are rubbed and vibrated mutually, oil, mud and water attack can cause abrasion of the parts, connection looseness and corrosion aging, so that the technical state of the mini-tiller is worsened, the power is reduced, the oil consumption is increased, the abrasion is accelerated, and faults continuously occur.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a small mini-tiller gearbox, which is compact in structure, small in size, convenient to operate, low in failure rate, convenient to maintain and long in service life.

In order to solve the problems, the utility model adopts the following technical scheme: a gearbox of a small mini-tiller comprises a box body and is characterized in that a shaft A, a shaft B, a shaft C, a shaft D, a shaft E and a shaft F are arranged in the box body,

the shaft A is a power input shaft, the shaft A is sequentially provided with a gear A1, a gear A2 and a gear A3 from front to back, a first gear shifting fork is arranged on the gear A1, the gear A2 and the gear A3 are duplex gear shifting wheels, a second gear shifting fork is arranged between the gear A2 and the gear A3,

the shaft B is sequentially provided with a gear B1 and a gear B2 from front to back,

the shaft C is provided with a gear C1, a gear C2, a gear C3 and a gear C4 from front to back in sequence,

the shaft D is sequentially provided with a gear D1 and a gear D2 from front to back,

the shaft E is sequentially provided with a gear E1, a gear E2 and a gear E3 from front to back, the gear E1 and the gear E3 are steering gears, steering separation shifting forks are arranged on the gear E1 and the gear E3, return springs are arranged on the gear E1 and the gear E3, the return springs ensure that the gear E1 is meshed with the gear F1 and the gear E3 is meshed with the gear F2 under the condition that the steering separation shifting forks are not operated,

the left and right of the shaft F are divided into a shaft Fa and a shaft Fb which can rotate relatively, a gear F1 is arranged on the shaft Fa, a gear F2 is arranged on the shaft Fb,

gear C2 is meshed with gear D1, gear D2 is meshed with gear E2, gear B1 is meshed with gear C1,

the first shifting fork controls the gear A1 to slide on the shaft A for shifting, can respectively realize one of three matching states of the gear A1 and the gear C1, the gear A1 and the gear B2 and neutral gear, and the three matching states cannot occur simultaneously,

the second shifting fork controls the gear A2 and the gear A3 to slide on the shaft A for shifting, can respectively realize one of three matching states of the meshing of the gear A2 and the gear C3, the meshing of the gear A3 and the gear C4 and neutral gear, and the three matching states cannot occur at the same time,

the steering separation shifting fork is divided into a left steering separation shifting fork and a right steering separation shifting fork, the left steering separation shifting fork and the right steering separation shifting fork respectively control the gear E1 and the gear E3 to slide on the shaft E for shifting, the left steering separation shifting fork can control the gear E1 to be meshed with or separated from the gear F1, and the right steering separation shifting fork can control the gear E3 to be meshed with or separated from the gear F2.

The beneficial effects of the utility model are as follows: compact structure, small volume, convenient operation, low failure rate, convenient maintenance and long service life.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic diagram of the structure of the present utility model;

in the figure: 1-axis A, 1.1-gear A1, 1.2-gear A2, 1.3-gear A3, 2-axis B, 2.1-gear B1, 2.2-gear B2, 3-axis C, 3.1-gear C1, 3.2-gear C2, 3.3-gear C3, 3.4-gear C4, 4-axis D, 4.1-gear D1, 4.2-gear D2, 5-axis E, 5.1-gear E1, 5.2-gear E2, 5.3-gear E3, 6-axis F,6 a-axis Fa, 6B-axis Fb, 6.1-gear F1, 6.2-gear F2, 7-left turn split fork, 8-right turn split fork, 9-first shift fork, 10-second shift fork, 11-housing.

Detailed Description

As shown in fig. 1,2 and 3, the gearbox of the mini-tiller comprises a box body, and a shaft A, a shaft B, a shaft C, a shaft D, a shaft E and a shaft F are arranged in the box body.

The gear A is a power input shaft, the gear A1, the gear A2 and the gear A3 are sequentially arranged on the shaft A from front to back, a first gear shifting fork is arranged on the gear A1, the gear A2 and the gear A3 are duplex gear shifting wheels, and a second gear shifting fork is arranged between the gear A2 and the gear A3.

The shaft B is provided with a gear B1 and a gear B2 from front to back in sequence.

The shaft C is provided with a gear C1, a gear C2, a gear C3 and a gear C4 from front to back in sequence.

The shaft D is provided with a gear D1 and a gear D2 from front to back in sequence.

The shaft E is sequentially provided with a gear E1, a gear E2 and a gear E3 from front to back, the gear E1 and the gear E3 are steering gears, steering separation shifting forks are arranged on the gear E1 and the gear E3, return springs are arranged on the gear E1 and the gear E3, and the return springs ensure that the gear E1 is meshed with the gear F1 and the gear E3 is meshed with the gear F2 under the condition that the steering separation shifting forks are not operated.

The shaft F is divided into a shaft Fa and a shaft Fb which can rotate relatively, the shaft Fa is provided with a gear F1, and the shaft Fb is provided with a gear F2.

Gear C2 is meshed with gear D1, gear D2 is meshed with gear E2, gear B1 is meshed with gear C1,

the first shifting fork controls the gear A1 to slide on the shaft A for shifting, one of three matching states of meshing of the gear A1 and the gear C1, meshing of the gear A1 and the gear B2 and neutral gear can be respectively realized, and the three matching states cannot occur simultaneously.

The second gear shifting fork controls the gear A2 and the gear A3 to slide on the shaft A for gear shifting, one of three matching states of meshing of the gear A2 and the gear C3, meshing of the gear A3 and the gear C4 and neutral gear can be respectively realized, and the three matching states cannot occur simultaneously.

The steering separation shifting fork is divided into a left steering separation shifting fork and a right steering separation shifting fork, the left steering separation shifting fork and the right steering separation shifting fork respectively control the gear E1 and the gear E3 to slide on the shaft E for shifting, the left steering separation shifting fork can control the gear E1 to be meshed with or separated from the gear F1, and the right steering separation shifting fork can control the gear E3 to be meshed with or separated from the gear F2.

Working state:

walking 1 st gear: the first shift fork 9 controls the gear A1 to be meshed with the gear C1, the shaft A transmits power to the shaft C through the gear A1 and the gear C1 in sequence, the shaft C transmits power to the shaft D through the gear C2 and the gear D1, the shaft D transmits power to the shaft E through the gear D2 and the gear E2, the shaft E transmits power to the shaft Fa through the gear E1 and the gear F1 in sequence, and the shaft E transmits power to the shaft Fb through the gear E3 and the gear F2 in sequence, so that the gear F is straight, and 1-gear walking is realized. When the left steering is needed, the left steering separation shifting fork control gear E1 is shifted to be separated from the gear F1, and when the right steering is needed, the right steering separation shifting fork control gear E3 is shifted to be separated from the gear F2.

Walking for 2 nd gear: the second shift fork 10 controls the gear A2 to be meshed with the gear C3, the shaft A transmits power to the shaft C through the gear A2 and the gear C3 in sequence, the shaft C transmits power to the shaft D through the gear C2 and the gear D1, the shaft D transmits power to the shaft E through the gear D2 and the gear E2, the shaft E transmits power to the shaft Fa through the gear E1 and the gear F1 in sequence, and the shaft E transmits power to the shaft Fb through the gear E3 and the gear F2 in sequence, so that the gear F is straight, and 2-gear walking is realized. When the left steering is needed, the left steering separation shifting fork control gear E1 is shifted to be separated from the gear F1, and when the right steering is needed, the right steering separation shifting fork control gear E3 is shifted to be separated from the gear F2.

Walking 3 rd gear: the second shift fork 10 controls the gear A3 to be meshed with the gear C4, the shaft A transmits power to the shaft C through the gear A3 and the gear C4 in sequence, the shaft C transmits power to the shaft D through the gear C2 and the gear D1, the shaft D transmits power to the shaft E through the gear D2 and the gear E2, the shaft E transmits power to the shaft Fa through the gear E1 and the gear F1 in sequence, and the shaft E transmits power to the shaft Fb through the gear E3 and the gear F2 in sequence, so that the gear F is straight, and 2-gear walking is realized. When the left steering is needed, the left steering separation shifting fork control gear E1 is shifted to be separated from the gear F1, and when the right steering is needed, the right steering separation shifting fork control gear E3 is shifted to be separated from the gear F2.

Reverse gear: the first shift fork 9 controls the gear A1 to be meshed with the gear B2, the shaft A transmits power to the shaft B through the gear A1 and the gear B2 in sequence, the shaft B transmits power to the shaft C through the gear B1 and the gear C1 in sequence, the shaft C transmits power to the shaft D through the gear C2 and the gear D1, the shaft D transmits power to the shaft E through the gear D2 and the gear E2, the shaft E transmits power to the shaft Fa through the gear E1 and the gear F1 in sequence, and the shaft E transmits power to the shaft Fb through the gear E3 and the gear F2 in sequence, so that reverse gear walking is realized. When the left steering is needed, the left steering separation shifting fork control gear E1 is shifted to be separated from the gear F1, and when the right steering is needed, the right steering separation shifting fork control gear E3 is shifted to be separated from the gear F2.

The present utility model is not limited to the above-described embodiments only.

Claims (1)

1. A gearbox of a small mini-tiller comprises a box body and is characterized in that a shaft A, a shaft B, a shaft C, a shaft D, a shaft E and a shaft F are arranged in the box body,

the shaft A is a power input shaft, the shaft A is sequentially provided with a gear A1, a gear A2 and a gear A3 from front to back, a first gear shifting fork is arranged on the gear A1, the gear A2 and the gear A3 are duplex gear shifting wheels, a second gear shifting fork is arranged between the gear A2 and the gear A3,

the shaft B is sequentially provided with a gear B1 and a gear B2 from front to back,

the shaft C is provided with a gear C1, a gear C2, a gear C3 and a gear C4 from front to back in sequence,

the shaft D is sequentially provided with a gear D1 from front to back the gear wheel D2 is provided with a gear,

the shaft E is sequentially provided with a gear E1, a gear E2 and a gear E3 from front to back, the gear E1 and the gear E3 are steering gears, steering separation shifting forks are arranged on the gear E1 and the gear E3, return springs are arranged on the gear E1 and the gear E3, the return springs ensure that the gear E1 is meshed with the gear F1 and the gear E3 is meshed with the gear F2 under the condition that the steering separation shifting forks are not operated,

the left and right of the shaft F are divided into a shaft Fa and a shaft Fb which can rotate relatively, a gear F1 is arranged on the shaft Fa, a gear F2 is arranged on the shaft Fb,

gear C2 is meshed with gear D1, gear D2 is meshed with gear E2, gear B1 is meshed with gear C1,

the first shifting fork controls the gear A1 to slide on the shaft A for shifting, can respectively realize one of three matching states of the gear A1 and the gear C1, the gear A1 and the gear B2 and neutral gear, and the three matching states cannot occur simultaneously,

the second shifting fork controls the gear A2 and the gear A3 to slide on the shaft A for shifting, can respectively realize one of three matching states of the meshing of the gear A2 and the gear C3, the meshing of the gear A3 and the gear C4 and neutral gear, and the three matching states cannot occur at the same time,

the steering separation shifting fork is divided into a left steering separation shifting fork and a right steering separation shifting fork, the left steering separation shifting fork and the right steering separation shifting fork respectively control the gear E1 and the gear E3 to slide on the shaft E for shifting, the left steering separation shifting fork can control the gear E1 to be meshed with or separated from the gear F1, and the right steering separation shifting fork can control the gear E3 to be meshed with or separated from the gear F2.

Images