Rear drive axle heightening device for agricultural machinery

Abstract

The utility model discloses an agricultural machinery rear drive axle heightening device which comprises a shell, a drive shaft and a hub shaft, the drive shaft and the hub shaft are installed in the shell in parallel, the drive shaft is arranged above the hub shaft, one end of the drive shaft extends out of one side of the shell, and one end of the hub shaft extends out of the other side of the shell. The extending end of the hub shaft is fixedly connected with a hub mounting disc, and a transmission speed adjusting mechanism is arranged in the shell and used for connecting the driving shaft with the hub shaft in a power mode and adjusting the advancing speed of the rear wheel of the agricultural machine to be matched with the advancing speed of the front wheel of the agricultural machine. The device is arranged at the tail end of a rear drive axle, the height of the rear drive axle is increased to the position above the center line of a hub, on the premise that the size of the hub is not changed, the height of a chassis of an agricultural machine can be increased, and the conventional configuration that front wheels are small and rear wheels are large is considered. And the driving speed regulating mechanism is used for regulating the advancing speed of the rear wheel of the agricultural machine to be adaptive to the advancing speed of the front wheel of the agricultural machine.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a device for raising the rear drive axle of agricultural machinery. Background Technology

[0002] Agricultural machinery plays a very wide role in agricultural production activities. It is needed at every stage of agricultural production, especially in the large-scale, mechanized planting areas of Northwest and Northeast my country. When cultivating, fertilizing, and spraying pesticides for cotton grown on a large scale in Xinjiang and corn grown on a large scale in Northeast China, the commonly used tractors and other machinery face many inconveniences because the chassis height of these crops is lower than their mature height after maturity. Utility Model Content

[0003] The purpose of this utility model is to provide a rear drive axle heightening device for agricultural machinery. By installing this device at the end of the rear drive axle, the height of the rear drive axle is raised above the center line of the wheel hub. This allows for an increase in the chassis height of agricultural machinery without changing the wheel hub size. Considering the conventional configuration of agricultural machinery with small front wheels and large rear wheels, a transmission speed adjustment mechanism is provided. This mechanism connects the power mechanism of the rear drive axle to the power mechanism of the rear wheel hub and adjusts the travel speed of the rear wheels of the agricultural machinery to match the travel speed of the front wheels.

[0004] To achieve the purpose of this utility model, this utility model provides a rear drive axle raising device for agricultural machinery, comprising: a housing, a drive shaft, and a hub shaft. The drive shaft and the hub shaft are installed parallel to each other within the housing. The drive shaft is positioned above the hub shaft. One end of the drive shaft extends from one side of the housing, and one end of the hub shaft extends from the other side of the housing. A hub mounting plate is fixedly connected to the extended end of the hub shaft. A transmission speed regulating mechanism is provided within the housing. The transmission speed regulating mechanism is used to powerly connect the drive shaft and the hub shaft and adjust the travel speed of the rear wheels of the agricultural machinery to match the travel speed of the front wheels of the agricultural machinery.

[0005] As a preferred embodiment of this utility model, the extended end of the drive shaft is poweredly connected to the rear drive axle power mechanism.

[0006] As a preferred technical solution of this utility model, the transmission speed regulating mechanism includes a drive gear, a hub gear and a differential gear. The drive gear is fixedly connected to the drive shaft, the hub gear is fixedly connected to the hub shaft, the drive gear and the hub gear are spaced apart, and the upper and lower ends of the differential gear are respectively meshed with the drive gear and the hub gear.

[0007] As a preferred embodiment of this invention, the differential gear is mounted inside the housing via a rotating shaft.

[0008] As a preferred embodiment of this invention, the gear ratio between the drive gear and the differential gear is 1:1.

[0009] As a preferred embodiment of this invention, the gear ratio of the drive gear to the hub gear is adapted to the size ratio of the front and rear travel wheels of agricultural machinery.

[0010] As a preferred embodiment of this utility model, the gear ratio of the drive gear to the hub gear is 1:2.

[0011] Compared with the prior art, this utility model provides a rear drive axle raising device for agricultural machinery, which has the following beneficial effects:

[0012] This utility model, by installing this device at the end of the rear drive axle, raises the height of the rear drive axle to above the center line of the wheel hub. This allows for an increase in the chassis height of agricultural machinery without changing the wheel hub size. Considering the conventional configuration of agricultural machinery with small front wheels and large rear wheels, a transmission speed adjustment mechanism is set up. This mechanism connects the power mechanism of the rear drive axle and the power mechanism of the rear wheel hub, and adjusts the travel speed of the rear wheels of the agricultural machinery to match the travel speed of the front wheels. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model.

[0015] 1 is the housing, 2 is the drive shaft, 3 is the hub shaft, 4 is the hub mounting plate, 5 is the drive gear, 6 is the hub gear, 7 is the differential gear, and 8 is the rotating shaft. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-Figure 2This utility model provides a rear drive axle raising device for agricultural machinery, including: a housing 1, a drive shaft 2, and a hub axle 3. The drive shaft 2 and the hub axle 3 are installed parallel to each other inside the housing 1. The drive shaft 2 is positioned above the hub axle 3. One end of the drive shaft 2 extends from one side of the housing 1, and one end of the hub axle 3 extends from the other side of the housing 1. A hub mounting plate 4 is fixedly connected to the extended end of the hub axle 3. A transmission speed adjustment mechanism is provided inside the housing 1. The transmission speed adjustment mechanism is used to powerly connect the drive shaft 2 and the hub axle 3 and adjust the travel speed of the rear wheel of the agricultural machinery to match the travel speed of the front wheel of the agricultural machinery.

[0018] In one embodiment of this utility model, the extended end of the drive shaft 2 is poweredly connected to the rear drive axle power mechanism, which is shown in the figure.

[0019] In one embodiment of the present invention, the transmission speed regulating mechanism includes a drive gear 5, a hub gear 6 and a differential gear 7. The drive gear 5 is fixedly connected to the drive shaft 2, the hub gear 6 is fixedly connected to the hub shaft 3, the drive gear 5 and the hub gear 6 are spaced apart, and the upper and lower ends of the differential gear 7 are respectively meshed with the drive gear 5 and the hub gear 6.

[0020] In one embodiment of the present invention, the differential gear 7 is mounted in the housing 1 via a rotating shaft 8.

[0021] In one embodiment of this utility model, the gear ratio between the drive gear 5 and the differential gear 7 is 1:1.

[0022] In one embodiment of this utility model, the gear ratio of the drive gear 5 to the hub gear 6 is adapted to the size ratio of the front and rear travel wheels of agricultural machinery.

[0023] In one embodiment of this utility model, the gear ratio of the drive gear 5 to the hub gear 6 is 1:2.

[0024] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A device for raising the rear drive axle of agricultural machinery, characterized in that, include: The housing (1), drive shaft (2), and hub shaft (3) are installed in parallel within the housing (1). The drive shaft (2) is positioned above the hub shaft (3). One end of the drive shaft (2) extends from one side of the housing (1), and one end of the hub shaft (3) extends from the other side of the housing (1). A hub mounting plate (4) is fixedly connected to the extended end of the hub shaft (3). A transmission speed adjustment mechanism is provided inside the housing (1). The transmission speed adjustment mechanism is used to power connect the drive shaft (2) and the hub shaft (3) and adjust the travel speed of the rear wheel of the agricultural machinery to match the travel speed of the front wheel of the agricultural machinery.

2. The rear drive axle raising device for agricultural machinery according to claim 1, characterized in that: The extended end of the drive shaft (2) is powered to the rear drive axle power mechanism.

3. The rear drive axle raising device for agricultural machinery according to claim 1, characterized in that: The transmission speed regulating mechanism includes a drive gear (5), a hub gear (6) and a differential gear (7). The drive gear (5) is fixedly connected to the drive shaft (2), and the hub gear (6) is fixedly connected to the hub shaft (3). The drive gear (5) and the hub gear (6) are spaced apart, and the upper and lower ends of the differential gear (7) are respectively meshed with the drive gear (5) and the hub gear (6).

4. The rear drive axle raising device for agricultural machinery according to claim 3, characterized in that: The differential gear (7) is mounted inside the housing (1) via a rotating shaft (8).

5. The rear drive axle raising device for agricultural machinery according to claim 3, characterized in that: The gear ratio between the drive gear (5) and the differential gear (7) is 1:

1.

6. The rear drive axle raising device for agricultural machinery according to claim 3, characterized in that: The gear ratio of the drive gear (5) to the hub gear (6) is adapted to the size ratio of the front and rear travel wheels of the agricultural machinery.

7. The rear drive axle raising device for agricultural machinery according to claim 6, characterized in that: The gear ratio of the drive gear (5) to the hub gear (6) is 1:2.

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