阅读说明：本技术 一种轮式拖拉机变速箱动力输出轴传动结构 (Transmission structure of power output shaft of gearbox of wheeled tractor ) 是由 张后才 袁超 刘颖 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种轮式拖拉机变速箱动力输出轴传动结构,中间轴的一端与离合器的离合器轴同轴对接,中间轴的另一端与输出主动轴连接,动力输出轴与输出主动轴连接,双联齿轮通过安装轴一安装于壳体内部,过渡齿轮通过安装轴二安装于壳体内部,离合器的离合器轴齿轮、双联齿轮分别与过渡齿轮啮合,滑动齿轮在中间轴与离合器轴的连接处套设于两者之上,滑动齿轮在中间轴与离合器轴上滑动,双联齿轮与滑动齿轮啮合或分离。本发明优点是：实现拖拉机前进时动力输出轴顺时针旋转,倒退时动力输出轴逆时针旋转,逆时针旋转时可快速有效的将缠草、泥巴、杂物等甩出,减轻拖拉机作业负荷,降低油耗,提高作业效率。(The invention discloses a power output shaft transmission structure of a gear box of a wheeled tractor, wherein one end of an intermediate shaft is coaxially butted with a clutch shaft of a clutch, the other end of the intermediate shaft is connected with an output driving shaft, a power output shaft is connected with the output driving shaft, a duplicate gear is arranged in a shell through a first mounting shaft, a transition gear is arranged in the shell through a second mounting shaft, a clutch shaft gear and the duplicate gear of the clutch are respectively meshed with the transition gear, a sliding gear is sleeved on the intermediate shaft and the clutch shaft at the joint of the intermediate shaft and the clutch shaft, the sliding gear slides on the intermediate shaft and the clutch shaft, and the duplicate gear is meshed with or separated from the sliding gear. The invention has the advantages that: when the tractor moves forwards, the power output shaft rotates clockwise, when the tractor moves backwards, the power output shaft rotates anticlockwise, and grass, mud, sundries and the like can be quickly and effectively thrown away during anticlockwise rotation, so that the operation load of the tractor is reduced, the oil consumption is reduced, and the operation efficiency is improved.)

1. The utility model provides a wheeled tractor gearbox power output shaft transmission structure which characterized in that: the clutch comprises an intermediate shaft (1), an output driving shaft (2), a power output shaft (3), a sliding gear (4), a duplicate gear (5), a transition gear (6) and a clutch (7) which are arranged inside a shell (100), wherein one end of the intermediate shaft (1) is coaxially butted with a clutch shaft (71) of the clutch (7), the other end of the intermediate shaft (1) is connected with the output driving shaft (2), the power output shaft (3) is connected with the output driving shaft (2), the duplicate gear (5) is arranged inside the shell (100) through an installation shaft I, the transition gear (6) is arranged inside the shell (100) through an installation shaft II, the clutch shaft gear (72) of the clutch (7) and the duplicate gear (5) are respectively meshed with the transition gear (6), and the sliding gear (4) is sleeved at the joint of the intermediate shaft (1) and the clutch shaft (71) The sliding gear (4) slides on the intermediate shaft (1) and the clutch shaft (71), and the dual gear (5) is engaged with or disengaged from the sliding gear (4).

2. The power take-off shaft transmission structure of the gearbox of the wheeled tractor as claimed in claim 1, wherein: the sliding gear (4) slides on the intermediate shaft (1) and the clutch shaft (71) through a shifting fork (8).

3. The power take-off shaft transmission structure of the gearbox of the wheeled tractor as claimed in claim 1, wherein: the transition gear (6) is meshed with a front gear of the duplicate gear (5), and the sliding gear (4) is meshed with or separated from a rear gear of the duplicate gear (5).

4. The power take-off shaft transmission structure of the gearbox of the wheeled tractor as claimed in claim 1, wherein: the clutch (7) is a single-acting clutch.

5. The power take-off shaft transmission structure of the gearbox of the wheeled tractor as claimed in claim 1, wherein: the butt joint end of the clutch shaft (71) and the intermediate shaft (1) is provided with a blind hole (711) along the axial direction, a pin (11) is correspondingly arranged on the end face of the intermediate shaft (1), and the pin (11) is inserted into the blind hole (711) to enable the intermediate shaft (1) and the clutch shaft (71) to be in coaxial butt joint.

Technical Field

The invention relates to a transmission structure of a tractor gearbox, in particular to a transmission structure of a power output shaft of a wheeled tractor gearbox.

Background

At present, in the existing transmission structure of the gearbox, walking is mainly controlled by a main clutch of a double-acting clutch, an auxiliary clutch controls a power output shaft, a power output front shaft is sleeved in the main clutch shaft and is connected with an output driving shaft through a spline sleeve, power is transmitted to the power output shaft, the power output shaft is not related to a forward and backward gear of a tractor, and the power output shaft of the gearbox rotates clockwise when viewed towards the forward direction of the tractor. When the matched agricultural implement works, the phenomena of grass winding, straw wrapping, mud wrapping by sundries and the like can occur, the resistance of the agricultural implement during working can be increased, the load of a tractor is increased, and the oil consumption is increased; the windings such as weeds and the like need to be manually cleaned when the vehicle is stopped, and the working efficiency is low.

Disclosure of Invention

The purpose of the invention is as follows: in view of the above problems, the present invention aims to provide a transmission structure for a power output shaft of a gearbox of a wheeled tractor, which enables the power output shaft of the gearbox to have clockwise rotation and anticlockwise rotation functions, facilitates cleaning of winding objects, improves efficiency, and reduces oil consumption.

The technical scheme is as follows: a power output shaft transmission structure of a gear box of a wheeled tractor comprises a middle shaft, an output driving shaft, a power output shaft, a sliding gear, a duplicate gear, a transition gear and a clutch which are arranged in a shell, one end of the intermediate shaft is coaxially butted with a clutch shaft of the clutch, the other end of the intermediate shaft is connected with the output driving shaft, the power output shaft is connected with the output driving shaft, the duplicate gear is arranged in the shell through a first mounting shaft, the transition gear is arranged in the shell through a second mounting shaft, a clutch shaft gear of the clutch and the duplicate gear are respectively meshed with the transition gear, the sliding gear is sleeved on the intermediate shaft and the clutch shaft at the joint of the intermediate shaft and the clutch shaft, the sliding gear slides on the intermediate shaft and the clutch shaft, and the duplicate gear is engaged with or disengaged from the sliding gear.

The connection and transmission mode of the output driving shaft and the power output shaft are the same as the original structure, the connection and transmission mode of the intermediate shaft and the output driving shaft is the same as the connection and transmission mode of the original power output front shaft and the output driving shaft, in an initial state, the sliding gear is sleeved on the intermediate shaft, and at the moment, the duplicate gear is meshed with the sliding gear. When the sliding gear moves forwards to the butt joint position of the clutch shaft and the intermediate shaft, the dual gear is separated from the sliding gear at the moment, the power output can realize clockwise rotation through the clutch shaft, the intermediate shaft, the output driving shaft and the power output shaft by the clutch, and at the moment, the dual gear idles by the clutch shaft gear through the transition gear; when the sliding gear is shifted to the intermediate shaft, the power output can realize anticlockwise rotation through the clutch shaft gear, the transition gear, the duplicate gear, the intermediate shaft, the output driving shaft and the power output shaft by the clutch, and then sundries such as grass winding, mud wrapping and the like of a matched machine tool are thrown out; in addition, the device can be used for operations such as digging trees, digging wells and the like under special conditions.

Further, the sliding gear slides on the intermediate shaft and the clutch shaft through a shift fork.

Further, the transition gear is engaged with a front gear of the dual gear, and the sliding gear is engaged with or separated from a rear gear of the dual gear.

Further, the clutch is a single-acting clutch.

The original double-acting clutch is changed into a single-acting clutch, so that the input power of the power output shaft is conveniently disconnected at the shuttle-type gear position.

Furthermore, a blind hole is formed in the axial direction of the butt joint end of the clutch shaft and the intermediate shaft, a pin is correspondingly arranged on the end face of the intermediate shaft, and the pin is inserted into the blind hole to enable the intermediate shaft and the clutch shaft to be in coaxial butt joint.

Has the advantages that: compared with the prior art, the invention has the advantages that: when the tractor moves forwards, the power output shaft rotates clockwise, when the tractor moves backwards, the power output shaft rotates anticlockwise, and grass, mud, sundries and the like can be quickly and effectively thrown out when the tractor rotates anticlockwise, so that the operation load of the tractor is reduced, the oil consumption is reduced, and the operation efficiency is improved; the counterclockwise rotation can be used as a mobile power source for special operations such as well drilling, tree digging and the like, the application range of the tractor is enlarged, and the market competitiveness of the product is improved.

Drawings

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

FIG. 2 is an enlarged view I of FIG. 1;

fig. 3 is a schematic diagram of the power transmission of the gears of the present invention.

Detailed Description

The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the invention.

A power output shaft transmission structure of a gear box of a wheeled tractor is shown in figures 1-3 and comprises an intermediate shaft 1, an output driving shaft 2, a power output shaft 3, a sliding gear 4, a duplicate gear 5, a transition gear 6 and a clutch 7, wherein the intermediate shaft is arranged inside a shell 100, and the clutch 7 is a single-action clutch.

One end of a clutch shaft 71 of the clutch 7 is provided with a blind hole 711 along the axial direction, a pin 11 is correspondingly arranged on the end surface of the intermediate shaft 1, the pin 11 is inserted into the blind hole 711 to enable the intermediate shaft 1 and the clutch shaft 71 to be coaxially butted, the clutch shaft 71 and the intermediate shaft 1 can coaxially rotate in the same direction or coaxially rotate in the opposite direction, the other end of the intermediate shaft 1 is connected with the output driving shaft 2, the power output shaft 3 is connected with the output driving shaft 2, the duplicate gear 5 is installed inside the shell 100 through a first installation shaft, the transition gear 6 is installed inside the shell 100 through a second installation shaft, the first installation shaft and the second installation shaft are respectively installed on the inner wall of the shell 100 through bearings, a clutch shaft gear 72 of the clutch 7 and a front gear of the duplicate gear 5 are respectively meshed with the transition gear 6, the sliding gear 4 is sleeved on a shifting fork at the joint of the intermediate shaft 1 and the clutch shaft 71, the rear gear of the dual gear 5 is engaged with or disengaged from the sliding gear 4

The original double-acting clutch is changed into a single-acting clutch, so that the input power of the power output shaft is conveniently disconnected at the shuttle-type gear position. The connection and transmission mode of the output driving shaft and the power output shaft are the same as the original structure, the connection and transmission mode of the intermediate shaft and the output driving shaft is the same as the connection and transmission mode of the original power output front shaft and the output driving shaft, in an initial state, the sliding gear is sleeved on the intermediate shaft, and at the moment, the duplicate gear is meshed with the sliding gear. When the gear shifting fork is shifted forward to enable the sliding gear to move forward to the butt joint position of the clutch shaft and the intermediate shaft, the dual gear is separated from the sliding gear at the moment, the clutch shaft is driven to rotate by the clutch in power output, the intermediate shaft and the clutch shaft rotate in the same direction under the action of the sliding gear, clockwise rotation can be achieved through the output driving shaft and the power output shaft, and at the moment, the dual gear idles through the transition gear by the clutch shaft gear; when the shifting fork is shifted backwards, the sliding gear is shifted to the intermediate shaft, the power output is transmitted by the clutch through the clutch shaft gear, the transition gear, the duplicate gear and the sliding gear, the intermediate shaft rotates, the intermediate shaft and the clutch shaft rotate coaxially in opposite directions, the power can rotate anticlockwise through the output driving shaft and the power output shaft, and then sundries such as grass winding and mud wrapping of a matched machine tool are thrown out; in addition, the device can be used for operations such as digging trees, digging wells and the like under special conditions.