CN222179115U

CN222179115U - Driving axle for agricultural machinery

Info

Publication number: CN222179115U
Application number: CN202421108530.3U
Authority: CN
Inventors: 孙海峰; 张春宁; 葛宏坤; 李超; 刘茂芳; 孟凡宝
Original assignee: Shandong Weihe Transmission Co ltd
Current assignee: Shandong Weihe Transmission Co ltd
Priority date: 2024-05-21
Filing date: 2024-05-21
Publication date: 2024-12-17
Anticipated expiration: 2034-05-21

Abstract

The present application discloses a drive axle for agricultural machinery, which belongs to the technical field of agricultural machinery. A drive axle for agricultural machinery includes shaft A, shaft B and shaft C; shaft A is a power input shaft, and a first gear is fixedly connected to shaft A; a second gear is rotatably connected to shaft B, and the second gear is meshed with the first gear, a clutch is fixedly installed on shaft B, and the second gear is clutched and connected with shaft B through the clutch, and a third gear is fixedly installed on shaft B; shaft C is a power output shaft, and a fourth gear is installed on shaft C, and the fourth gear is meshed with the third gear. By installing a clutch on shaft B, when the device is used as a driven bridge, the clutch controls shaft B to separate from the second gear, so that the power transmitted by the tire is no longer transmitted to the front end, and the rotation speed of shaft A and the motor or motor is basically close to 0, so that noise, vibration and temperature rise are effectively controlled.

Description

Driving axle for agricultural machinery

Technical Field

The application relates to the technical field of agricultural machinery, in particular to a drive axle for agricultural machinery.

Background

The domestic agricultural machinery power transmission system basically adopts a route of an engine, a gearbox and a driving axle, the transmission route is long, a large space is occupied when the whole vehicle is arranged, and in order to obtain proper vehicle speed and power, frequent gear shifting is required, so that gear shifting impact is caused, and driving comfort is further deteriorated.

Through searching, the prior patent document with the publication number of CN201231678Y provides a corn combine harvester drive axle, when the device runs into a ridge and a ditch in the field, if the road condition is bad or the change of the thickness of crops is large, the walking gear does not need to be frequently changed, and the proper adjustment of the stepless speed change mechanism only needs to be operated by a handle on the harvester, so that the proper feeding quantity can be met. The travel speed can also be changed by operating the continuously variable lever while walking on the road. The labor intensity of the harvester hand is effectively reduced, and the humanization and the comfortableness of the whole machine operation are improved.

However, when the drive axle is used as a driven axle, the tire anti-dragging transmission system rotates due to the fact that a power disengaging gear is not arranged in the drive axle, and adverse effects such as efficiency reduction, high noise, high vibration and temperature rise are caused.

In view of this, we propose a drive axle for agricultural machinery.

Disclosure of utility model

1. Technical problem to be solved

The present application is directed to a drive axle for agricultural machinery, which solves the problems set forth in the background art.

2. Technical proposal

The application is realized by the following technical scheme:

A drive axle for agricultural machinery comprises an axle A, an axle B and an axle C;

The shaft A is a power input shaft, and a first gear is fixedly connected to the shaft A;

the shaft B is rotationally connected with a second gear, the second gear is meshed with the first gear, a clutch is fixedly arranged on the shaft B, the second gear is connected with the shaft B in a clutch manner through the clutch, and a third gear is fixedly arranged on the shaft B;

The shaft C is a power output shaft, a fourth gear is mounted on the shaft C, and the fourth gear is in meshed connection with the third gear.

As an alternative to the technical solution of the present application, a speed limiter is mounted on the shaft B, and the speed limiter is connected with the shaft B in a clutch manner.

As an alternative scheme of the technical scheme of the application, the speed limiter comprises a brake wheel, a rocker arm, a friction plate and a brake disc;

The brake wheel is rotatably mounted on the shaft B, the brake wheel is connected with the shaft B in a clutch mode, the rocker arm is connected with the brake wheel in a rotating mode, the rocker arm is elastically connected with the brake wheel through an elastic element, the friction plate is fixedly mounted at the movable end of the rocker arm, the friction plate is in friction contact with the brake disc, and the brake disc is rotatably connected with the shaft B.

As an alternative to the technical solution of the present application, the clutch is a dual clutch, and the shaft B is connected with the brake wheel by a clutch.

As an alternative scheme of the technical scheme of the application, the shaft C comprises a left half shaft, a right half shaft and a differential mechanism, wherein the left half shaft is connected with the right half shaft through the differential mechanism, and the differential mechanism is fixedly connected with a fourth gear.

As an alternative scheme of the technical scheme of the application, the left half shaft and the right half shaft are provided with wheel-side reduction gear sets.

As an alternative scheme of the technical scheme of the application, the wheel-side reduction gear set comprises a sun gear, a planet wheel carrier and an inner gear ring, wherein the sun gear is fixedly connected with a left half shaft or a right half shaft, the planet wheel is in meshed connection with the sun gear, the planet wheel is in meshed connection with the inner gear ring, and the planet wheel carrier is in rotary connection with the planet wheel.

3. Advantageous effects

Compared with the prior art, the application has the beneficial effects that:

1. According to the application, the clutch is arranged on the shaft B, when the device is used as a driven axle, the clutch is used for controlling the shaft B to be separated from the second gear, so that the power transmitted by the tire is not transmitted to the front end any more, the rotation speeds of the shaft A and the motor or the motor basically tend to 0, and the noise, the vibration and the temperature rise are effectively controlled.

2. The application realizes the clutch control of the shaft B and the brake wheel by utilizing the clutch, when the clutch control shaft B is separated from the second gear, the shaft B is combined with the brake wheel, when the rotating speed of the shaft B is too high, the rocker arm is acted by centrifugal force, the traction force of the elastic element is overcome, and at the moment, the friction plate is combined with the brake disc, so that the rotating resistance of the shaft B is increased, the rotating speed of a tire is prevented from being too high, and the control difficulty of a vehicle is increased.

Drawings

FIG. 1 is a schematic view of the overall structure of a drive axle for agricultural machinery;

FIG. 2 is an enlarged schematic view of the structure at A of a drive axle for agricultural machinery;

In the figure, 1, a shaft A, 101, a first gear, 2, a shaft B, 201, a second gear, 202, a third gear, 3, a shaft C, 301, a left half shaft, 302, a right half shaft, 303, a differential, 304, a fourth gear, 4, a clutch, 5, a speed limiter, 501, a brake wheel, 502, a rocker arm, 503, a friction plate, 504, a brake disc, 505, an elastic element and 6, a wheel side reduction gear set.

Detailed Description

The technical scheme of the present application will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the present application provides a driving axle for agricultural machinery, which includes an axle A1, an axle B2 and an axle C3;

the shaft A1 is a power input shaft, and a first gear 101 is fixedly connected to the shaft A1;

The second gear 201 is rotatably connected to the shaft B2, the second gear 201 is meshed with the first gear 101, the clutch 4 is fixedly arranged on the shaft B2, the second gear 201 is in clutch connection with the shaft B2 through the clutch 4, and the third gear 202 is fixedly arranged on the shaft B2;

The shaft C3 is a power output shaft, and a fourth gear 304 is mounted on the shaft C3, and the fourth gear 304 is meshed with the third gear 202.

As a preferred embodiment of the present application, a speed limiter 5 is mounted on the shaft B2, and the speed limiter 5 is coupled to the shaft B2 in a clutch manner.

As a preferred embodiment of the present application, the speed limiter 5 includes a brake wheel 501, a rocker arm 502, a friction plate 503 and a brake disc 504;

The brake wheel 501 is rotatably mounted on the shaft B2, the brake wheel 501 is in clutch connection with the shaft B2, the rocker arm 502 is rotatably connected with the brake wheel 501, the rocker arm 502 is elastically connected with the brake wheel 501 through an elastic element 505, the friction plate 503 is fixedly mounted at the movable end of the rocker arm 502, the friction plate 503 is in friction contact with the brake disc 504, and the brake disc 504 is rotatably connected with the shaft B2.

As a preferred embodiment of the present application, the clutch 4 is a double clutch, and the shaft B2 is clutch-connected to the brake wheel 501 via the clutch 4.

As a preferred embodiment of the present application, the axle C3 includes a left half shaft 301, a right half shaft 302 and a differential 303, the left half shaft 301 and the right half shaft 302 are connected through the differential 303, and the differential 303 is connected and fixed to a fourth gear 304.

As a preferred embodiment of the present application, the left half shaft 301 and the right half shaft 302 are provided with a wheel-side reduction gear set 6.

As a preferred embodiment of the present application, the wheel-side reduction gear set 6 includes a sun gear, a planet wheel carrier and an inner gear ring, wherein the sun gear is fixedly connected with the left half shaft 301 or the right half shaft 302, the planet wheel is in meshed connection with the sun gear, the planet wheel is in meshed connection with the inner gear ring, and the planet wheel carrier is in rotational connection with the planet wheel.

The working principle is that the power of the device is output by a motor or a motor through a shaft A1, and is finally output by a planet wheel carrier through a first gear 101, a second gear 201, a third gear 202, a fourth gear 304, a differential 303, a left half shaft 301, a right half shaft 302 and a wheel side reduction gear set 6.

The first gear 101 is connected with or made into an integral gear shaft with the shaft A1, the third gear 202 is connected with or made into an integral gear shaft with the shaft B2, a bearing is arranged between the second gear 201 and the shaft B2 and can rotate relatively, a clutch 4 is arranged on the shaft B2 and controls the separation or combination of the second gear 201 and the shaft B2, the third gear 202 is connected with a differential 303 shell, one end of a left half shaft 301 and one end of a right half shaft 302 are connected with a half shaft bevel gear in the differential 303, a sun gear in the other end of a wheel side reduction gear set 6 is connected with or made into an integral gear shaft, an inner gear ring is fixed in a wheel side reduction gear NGW type, the sun gear is used as an input, and a planet wheel is used as an output.

When the clutch 4 is used as a drive axle, the second gear 201 is combined with the shaft B2, the brake wheel 501 is separated from the shaft B2, and power is input from the input end and finally transmitted to the output end.

When the clutch 4 is used as a driven axle, the second gear 201 is separated from the shaft B2, the brake wheel 501 is combined with the shaft B2, no power is input at the input end, the wheel rim reduction gear set 6 is pulled by the elastic element 505 to separate the friction plate 503 from the brake disc 504 and not prevent the shaft B2 from rotating, but when the rotation speed of the shaft B2 is too fast, the rocker arm 502 is applied by the centrifugal force to overcome the elastic element 505, the friction plate 503 is combined with the brake disc 504, the resistance of the rotation of the shaft B2 is increased, the difficulty of controlling the rotation speed of the tire is increased, and the control of the rotation speed of the tire is prevented.

Claims

1. A drive axle for agricultural machinery, characterized in that it comprises an axis A (1), an axis B (2) and an axis C (3);

The shaft A (1) is a power input shaft, and a first gear (101) is fixedly connected to the shaft A (1);

A second gear (201) is rotatably connected to the shaft B (2), the second gear (201) is meshedly connected to the first gear (101), a clutch (4) is fixedly mounted on the shaft B (2), the second gear (201) is clutched and connected to the shaft B (2) via the clutch (4), and a third gear (202) is fixedly mounted on the shaft B (2);

The shaft C (3) is a power output shaft, and a fourth gear (304) is mounted on the shaft C (3), and the fourth gear (304) is meshedly connected with the third gear (202).

2. A drive axle for agricultural machinery according to claim 1, characterized in that a speed limiter (5) is installed on the shaft B (2), and the speed limiter (5) is clutch-connected to the shaft B (2).

3. A driving axle for agricultural machinery according to claim 2, characterized in that: the speed limiter (5) comprises a brake wheel (501), a rocker arm (502), a friction plate (503) and a brake disc (504);

The brake wheel (501) is rotatably mounted on the shaft B (2), the brake wheel (501) is clutch-connected to the shaft B (2), the rocker arm (502) is rotatably connected to the brake wheel (501), the rocker arm (502) and the brake wheel (501) are elastically connected via an elastic element (505), the friction plate (503) is fixedly mounted on the movable end of the rocker arm (502), the friction plate (503) is in frictional contact with a brake disc (504), and the brake disc (504) is rotatably connected to the shaft B (2).

4. A drive axle for agricultural machinery according to claim 3, characterized in that: the clutch (4) is a double clutch, and the shaft B (2) is connected to the brake wheel (501) through the clutch (4).

5. A drive axle for agricultural machinery according to claim 1, characterized in that: the shaft C (3) includes a left half shaft (301), a right half shaft (302) and a differential (303), the left half shaft (301) and the right half shaft (302) are connected through the differential (303), and the differential (303) is fixedly connected to the fourth gear (304).

6. A driving axle for agricultural machinery according to claim 5, characterized in that: a wheel-side reduction gear set (6) is installed on both the left half shaft (301) and the right half shaft (302).

7. A drive axle for agricultural machinery according to claim 6, characterized in that: the wheel-side reduction gear set (6) includes a sun gear, a planetary gear, a planetary gear carrier and an inner ring gear, the sun gear is fixedly connected to the left half shaft (301) or the right half shaft (302), the planetary gear is meshingly connected to the sun gear, the planetary gear is meshingly connected to the inner ring gear, and the planetary gear carrier is rotatably connected to the planetary gear.