A kind of wide after-bridge assembly for large-row-spacing planting agricultural machine

Abstract

The utility model discloses a kind of for large-ridge spacing planting agricultural machine widened rear axle assembly, comprising: rear axle main reducer assembly, widened half axle sleeve is sleeved on the output half shaft of rear axle main reducer assembly both ends, widened half axle sleeve inner side is fixedly connected with the shell end portion of rear axle main reducer assembly by flange, output half shaft is supported by bearing inside rear axle main reducer assembly, extension drive shaft is installed in widened half axle sleeve, the inner side end of extension drive shaft is transmission connection by spline sleeve with the end of output half shaft, the outer side end of extension drive shaft is fixedly connected with end reducer assembly, adjustable hub is connected at the output end of end reducer assembly, by adjusting the installation phase of adjustable hub or replacing different specifications widened half axle sleeve and extension drive shaft, to realize the adjustment of wheel track. The utility model is designed by modular widened half axle sleeve and extension drive shaft, fundamentally increases the effective width of bridge body, and the matching of large wheel track can be easily realized.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a widened rear axle assembly for agricultural machinery used in planting with large ridge spacing. Background Technology

[0002] In the cultivation of dryland crops such as corn and sugarcane on large farms, the 1.3-meter wide ridge double-row pattern is commonly used. This requires that the agricultural machinery used in conjunction with the plant, such as tractors, seeders and cultivators, be spaced at least 2600 mm apart to prevent the tires from crushing the ridges and damaging the crops during operation.

[0003] Currently, traditional methods for adjusting the rear axle track of agricultural machinery are quite limited. A common approach is to add shims to the end of the existing half-shaft or replace it with a longer half-shaft. However, this method has a limited adjustment range and significantly increases the cantilever length of the half-shaft, leading to a deterioration in the stress condition of the half-shaft and making it prone to bending or breakage. Another method is to change the track by reversing the wheel hub, but the adjustment range is fixed, which cannot meet precise agronomic requirements and may affect the overall stability of the machine. Utility Model Content

[0004] The purpose of this utility model is to provide a widened rear axle assembly for agricultural machinery with large ridge spacing. Through modular widened half-shaft sleeves and extended drive shaft design, the effective width of the axle body is fundamentally increased, which can easily achieve matching of large wheel track.

[0005] To achieve the purpose of this utility model, this utility model provides a widened rear axle assembly for agricultural machinery with large ridge spacing, comprising: a rear axle main reducer assembly, wherein widened half-shaft sleeves are fitted onto the output half-shafts at both ends of the rear axle main reducer assembly, the inner side of the widened half-shaft sleeves is fixedly connected to the housing end of the rear axle main reducer assembly via flanges, the output half-shafts are supported by bearings inside the rear axle main reducer assembly, an extension drive shaft is installed inside the widened half-shaft sleeves, the end of the output half-shafts is connected to the inner end of the extension drive shaft via a spline sleeve, an end reducer assembly is fixedly connected to the outer end of the extension drive shaft, and an adjustable hub is connected to the output end of the end reducer assembly. The wheel track can be adjusted by adjusting the installation phase of the adjustable hub and / or by replacing the widened half-shaft sleeves and the extension drive shaft of different specifications.

[0006] As a preferred embodiment of this utility model, an adjusting shim is provided between the widened half-shaft sleeve and the connecting flange of the rear axle main reducer assembly.

[0007] As a preferred embodiment of this utility model, a dust cover is provided on the outer side of the spline sleeve.

[0008] As a preferred embodiment of this utility model, the extended drive shaft is supported within the housing of the end reducer assembly by bearings.

[0009] As a preferred technical solution of this utility model, the adjustable wheel hub is a disc wheel hub, and the disc wheel hub is provided with multiple staggered mounting holes. By fixing the wheel on different mounting holes, the wheel track can be finely adjusted.

[0010] As a preferred technical solution of this utility model, the widened half-shaft sleeve and the extended transmission shaft are provided with a variety of standard length specifications, and the wheel track can be adjusted in a step-like manner by combining components of different lengths.

[0011] As a preferred technical solution of this utility model, an agricultural machinery mounting plate is provided on the top outer wall of the rear axle main reducer assembly.

[0012] Compared with the prior art, this utility model provides a widened rear axle assembly for agricultural machinery with large ridge spacing, which has the following beneficial effects: This invention fundamentally increases the effective width of the axle body through a modular design of widened half-shaft sleeves and extended drive shafts, easily achieving matching with large wheelbases. The widened half-shaft sleeves, as the main load-bearing and connecting components, together with the end reducer assembly, provide stable two-point support for the extended drive shaft, avoiding a long cantilever structure and ensuring the rigidity and strength of the transmission system. By adjusting the installation phase of the adjustable wheel hubs or replacing different specifications of widened half-shaft sleeves and extended drive shafts, users can precisely and flexibly set the wheelbase according to actual needs without complex modifications to the axle body. This invention can also be used as a standard module to match various models of rear axle main reducer assemblies, facilitating production and maintenance and reducing manufacturing costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the model of this utility model.

[0014] 1 is the rear axle main reducer assembly, 2 is the output half shaft, 3 is the widened half shaft sleeve, 4 is the extended drive shaft, 5 is the end reducer assembly, 6 is the adjustable hub, 7 is the mounting hole, 8 is the agricultural machinery mounting plate, 9 is the adjusting shim, and 10 is the spline sleeve. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-2 This utility model embodiment provides a widened rear axle assembly for agricultural machinery with large ridge spacing, including: a rear axle main reducer assembly 1, with widened half-shaft sleeves 3 sleeved on both ends of the output half-shafts 2 of the rear axle main reducer assembly 1. The inner side of the widened half-shaft sleeves 3 is fixedly connected to the housing end of the rear axle main reducer assembly 1 through a flange. The output half-shafts 2 are supported by bearings inside the rear axle main reducer assembly 1. An extension drive shaft 4 is installed inside the widened half-shaft sleeves 3. The end of the output half-shafts 2 is connected to the inner end of the extension drive shaft 4 through a spline sleeve 10. An end reducer assembly 5 is fixedly connected to the outer end of the extension drive shaft 4. An adjustable hub 6 is connected to the output end of the end reducer assembly 5. The wheel track can be adjusted by adjusting the installation phase of the adjustable hub 6 and / or by replacing the widened half-shaft sleeves 3 and the extension drive shaft 4 with different specifications.

[0017] In one embodiment of this utility model, an adjusting shim 9 is provided between the widened half-shaft sleeve 3 and the connecting flange of the rear axle main reducer assembly 1.

[0018] In one embodiment of this utility model, a dust cover is provided on the outer side of the spline sleeve 10.

[0019] In one embodiment of the present invention, the extended drive shaft 4 is supported by bearings within the housing of the end reducer assembly 5.

[0020] In one embodiment of this utility model, the adjustable wheel hub 6 is a disc wheel hub, and the disc wheel hub is provided with a plurality of staggered mounting holes 7, so that the wheel track can be finely adjusted by fixing the wheel on different mounting holes 7.

[0021] In one embodiment of this utility model, the widened half-shaft sleeve 3 and the extended transmission shaft 4 are provided with a variety of standard length specifications, and the wheel track can be adjusted in a stepped manner by combining components of different lengths.

[0022] In one embodiment of this utility model, an agricultural machinery mounting plate 8 is provided on the top outer wall of the rear axle main reducer assembly 1.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A widened rear axle assembly for agricultural machinery used in wide-row planting, characterized in that, include: The rear axle main reducer assembly (1) has widened half-shaft sleeves (3) fitted on the output half-shafts (2) at both ends of the rear axle main reducer assembly (1). The inner side of the widened half-shaft sleeves (3) is fixedly connected to the housing end of the rear axle main reducer assembly (1) through a flange. The output half-shafts (2) are supported by bearings inside the rear axle main reducer assembly (1). An extension drive shaft (4) is installed inside the widened half-shaft sleeves (3). The end of the output half-shafts (2) is connected to the inner end of the extension drive shaft (4) through a spline sleeve (10). The outer end of the extension drive shaft (4) is fixedly connected to the end reducer assembly (5). An adjustable hub (6) is connected to the output end of the end reducer assembly (5). The wheel track can be adjusted by adjusting the installation phase of the adjustable hub (6) and / or by replacing the widened half-shaft sleeves (3) and the extension drive shaft (4) of different specifications.

2. The widened rear axle assembly for agricultural machinery with large ridge spacing as described in claim 1, characterized in that: An adjusting shim (9) is provided between the widened half-shaft sleeve (3) and the connecting flange of the rear axle main reducer assembly (1).

3. The widened rear axle assembly for agricultural machinery with large ridge spacing as described in claim 1, characterized in that: The outer side of the spline sleeve (10) is covered with a dust cover.

4. The widened rear axle assembly for agricultural machinery with large ridge spacing as described in claim 1, characterized in that: The extended drive shaft (4) is supported by bearings within the housing of the end reducer assembly (5).

5. The widened rear axle assembly for agricultural machinery with large ridge spacing as described in claim 1, characterized in that: The adjustable wheel hub (6) is a disc wheel hub, and the disc wheel hub is provided with multiple staggered mounting holes (7). By fixing the wheel to different mounting holes (7), the wheel track can be finely adjusted.

6. The widened rear axle assembly for agricultural machinery with large ridge spacing as described in claim 1, characterized in that: The widened half-shaft sleeve (3) and the extended transmission shaft (4) are provided with a variety of standard length specifications, and the wheel track can be adjusted in a step-like manner by combining components of different lengths.

7. The widened rear axle assembly for agricultural machinery with large ridge spacing as described in claim 1, characterized in that: The rear axle main reducer assembly (1) has an agricultural machinery mounting plate (8) on its top outer wall.

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