Harvester drive axle box capable of achieving single input and double output

Abstract

The utility model relates to a driving mechanism, in particular to a harvester driving axle box capable of achieving single input and double output. The gearbox structurally comprises a box body, an input shaft assembly is arranged on one side in the box body, an output shaft assembly is arranged on the other side in the box body, an intermediate shaft assembly is arranged on an intermediate shaft fixing seat in the box body, one side of the intermediate shaft assembly is in meshed transmission with the output shaft assembly, and the other side of the intermediate shaft assembly is in meshed transmission with the input shaft assembly. The input shaft assembly is in linkage with a sliding gear sleeve through a shifting fork, the sliding gear sleeve is driven by the shifting fork to achieve meshing of different straight bevel gears of the input shaft assembly and the intermediate shaft assembly, and therefore the forward and reverse rotation function matched with the intermediate shaft is achieved. The forward and reverse rotation function of the grain guiding mechanism of the harvester is achieved, operation becomes light, clamping stagnation during grain guiding is avoided, cleaning and maintenance are convenient and fast, and the function that operation of a header is not interrupted when the grain guiding mechanism rotates forwards and reversely can be achieved in the constant meshing state.

Description

Technical Field

[0001] The utility model relates to a driving mechanism, in particular to a harvester driving axle box capable of realizing single-input and dual-output. Background Art

[0002] Under the existing technology, the drive axle box of a harvester, especially a corn harvester, often needs to be able to realize both forward and reverse functions during the grain guiding process. However, when switching the forward and reverse directions of the grain pouring mechanism, it will affect the operation of the cutting platform. During the switching interval, the cutting platform needs to stop for a moment before it can continue to operate, which causes discontinuity in use and has an adverse effect on crop harvesting. Summary of the Invention

[0003] In order to solve the problems of the prior art, the utility model provides a harvester drive axle box that can achieve single input and dual output, which realizes the forward and reverse function of the harvester's grain guiding mechanism, makes the operation lighter, and solves the problem of jamming during grain guiding, and is convenient and quick to clean and maintain. The constant engagement state can realize the function of the cutting platform to operate without interruption when the grain guiding mechanism is forward and reversed.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A harvester drive axle box capable of achieving single-input and dual-output, comprising a box body, an input shaft assembly being provided on one side of the box body, an output shaft assembly being provided on the other side, an intermediate shaft assembly being provided on an intermediate shaft fixing seat inside the box body, the intermediate shaft assembly being meshed and transmitted with the output shaft assembly on one side, and meshed and transmitted with the input shaft assembly on the other side, the input shaft assembly being provided with a forward and reverse gear hub, a sliding gear sleeve being provided on the outer side of the forward and reverse gear hub, the sliding gear sleeve being linked to a shift fork, and the sliding gear sleeve being driven by the shift fork to respectively realize the meshing of different straight bevel gears of the input shaft assembly with the intermediate shaft assembly, thereby realizing the forward and reverse function of matching the intermediate shaft.

[0006] Preferably, the input shaft assembly includes an input shaft arranged on one side of the housing, and the input shaft is respectively provided with a first spur bevel gear and a second spur bevel gear, the forward and reverse gear hub is arranged on the outer side of the input shaft between the first spur bevel gear and the second spur bevel gear, and a sliding gear sleeve is arranged on the outer side of the forward and reverse gear hub, the sliding gear sleeve is linked to the shift fork, and the first spur bevel gear and the second spur bevel gear are arranged opposite to each other.

[0007] Preferably, the intermediate shaft assembly includes an intermediate shaft fixed on the intermediate shaft fixing seat, a third spur bevel gear is provided on one side of the intermediate shaft, the third spur bevel gear is used to mesh with and transmit the first spur bevel gear or the second spur bevel gear of the input shaft assembly, and a fourth spur bevel gear is provided on the other side of the intermediate shaft, the fourth spur bevel gear is used to mesh with and transmit the output shaft assembly.

[0008] Preferably, the output shaft assembly includes an output shaft, and the output shaft is provided with a fifth spur bevel gear, and the fifth spur bevel gear is used to mesh with the fourth spur bevel gear of the transmission intermediate shaft assembly.

[0009] The beneficial effects brought about by the technical solution provided by the utility model are:

[0010] The utility model realizes the function of one input and two outputs, wherein the two outputs are divided into a normally closed constant speed output and an output capable of realizing forward and reverse rotation functions, which are respectively used for the power input of the harvester's cutting table and the grain pouring mechanism. In addition, on the basis of realizing forward and reverse rotation, a sliding gear sleeve is introduced to shift gears to realize the power transmission of the symmetrical straight bevel gears, thereby realizing the forward and reverse rotation functions of the output. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 This is a schematic diagram of the transmission structure of a harvester drive axle box capable of achieving single-input and dual-output according to the utility model. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Example 1

[0014] As attached Figure 1 As shown, a harvester drive axle box capable of achieving single-input and dual-output in this embodiment includes a box body 1, an input shaft assembly 2 is provided on one side of the box body 1, and an output shaft assembly 3 is provided on the other side, an intermediate shaft assembly 5 is provided on the intermediate shaft fixing seat 4 inside the box body, the intermediate shaft assembly 5 is meshed with the output shaft assembly 3 on one side, and meshed with the input shaft assembly 2 on the other side, a forward and reverse gear hub 6 is provided on the input shaft assembly 2, a sliding gear sleeve 7 is provided on the outer side of the forward and reverse gear hub 6, the sliding gear sleeve 7 is linked to the shift fork 8, and the sliding gear sleeve 7 is driven by the shift fork 8 to respectively realize the meshing of different straight bevel gears of the input shaft assembly 2 with the intermediate shaft assembly 5, thereby realizing the forward and reverse function of matching the intermediate shaft.

[0015] The input shaft assembly 2 of this embodiment includes an input shaft 21 arranged on one side of the housing 1, and a first spur bevel gear 22 and a second spur bevel gear 23 are respectively provided on the input shaft 21. The forward and reverse gear hub 6 is provided on the outer side of the input shaft 21 between the first spur bevel gear 22 and the second spur bevel gear 23. A sliding gear sleeve 7 is provided on the outer side of the forward and reverse gear hub 6. The sliding gear sleeve 7 is linked to the shift fork 8, and the first spur bevel gear 22 and the second spur bevel gear 23 are arranged opposite to each other.

[0016] In the initial position, the shift fork 8 is centered, the input shaft 21 is idling, and there is no power output;

[0017] Forward function realization:

[0018] When the shift fork 8 pushes the sliding gear sleeve 7 downward and the sliding gear sleeve 7 engages with the second spur bevel gear 23, the power of the input shaft passes through the gear sleeve, the forward and reverse gear hub, the second spur bevel gear 23, the intermediate shaft assembly, and the output shaft of the output shaft assembly to achieve forward rotation;

[0019] Reversal function implementation:

[0020] When the shift fork 8 pushes the sliding gear sleeve 7 upward and the sliding gear sleeve 7 engages with the first spur bevel gear 22, the power of the input shaft passes through the gear sleeve, the forward and reverse gear hub, the first spur bevel gear 22, the intermediate shaft assembly, and the output shaft of the output shaft assembly to achieve reverse rotation.

[0021] The intermediate shaft assembly 5 of this embodiment includes an intermediate shaft 51 fixed to the intermediate shaft fixing seat 4. A third spur bevel gear 52 is provided on one side of the intermediate shaft 51. The third spur bevel gear 52 is used to mesh with and drive the first spur bevel gear 22 or the second spur bevel gear 23. A fourth spur bevel gear 53 is provided on the other side of the intermediate shaft 51. The fourth spur bevel gear 53 is used to mesh with and drive the output shaft assembly 3.

[0022] The output shaft assembly 3 of this embodiment includes an output shaft 31 , on which a fifth spur bevel gear 32 is provided. The fifth spur bevel gear 32 is used to mesh with the fourth spur bevel gear 54 of the transmission intermediate shaft assembly.

[0023] The power transmission process of a harvester drive axle box capable of achieving single input and dual output in this embodiment is as follows:

[0024] 1. After the pulley is installed on the power input shaft, it receives the power input from the engine belt;

[0025] 2. The power input shaft rotates, driving the gear hub on the input shaft to rotate, and at the same time realizing the power output of the spline at the other end of the input shaft;

[0026] 3. The sliding gear sleeve on the power input shaft, driven by the shift fork, realizes the meshing of the upper and lower straight bevel gears, thereby achieving the forward and reverse rotation function of the matching intermediate shaft;

[0027] 4. After receiving power input, the intermediate shaft assembly engages with the output shaft gear to achieve power output.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A harvester drive axle box capable of achieving single input and dual output, comprising a box body, wherein an input shaft assembly is provided on one side of the box body and an output shaft assembly is provided on the other side thereof, characterized in that: An intermediate shaft assembly is provided on the intermediate shaft fixing seat inside the housing. The intermediate shaft assembly meshes and transmits the output shaft assembly while meshing and transmitting with the input shaft assembly. The input shaft assembly is provided with a forward and reverse gear hub. A sliding gear sleeve is provided on the outer side of the forward and reverse gear hub. The sliding gear sleeve is linked to a shift fork. Driven by the shift fork, the sliding gear sleeve respectively realizes the meshing of different straight bevel gears of the input shaft assembly with the intermediate shaft assembly, thereby realizing the forward and reverse function of matching the intermediate shaft.

2. A harvester drive axle box capable of achieving single input and dual output according to claim 1, characterized in that: The input shaft assembly includes an input shaft arranged on one side of the housing, and a first spur bevel gear and a second spur bevel gear are respectively arranged on the input shaft. The forward and reverse gear hub is arranged on the outside of the input shaft between the first spur bevel gear and the second spur bevel gear, and a sliding gear sleeve is arranged on the outside of the forward and reverse gear hub. The sliding gear sleeve is linked to the shift fork, and the first spur bevel gear and the second spur bevel gear are arranged opposite to each other.

3. A harvester drive axle box capable of achieving single input and dual output according to claim 1, characterized in that: The intermediate shaft assembly includes an intermediate shaft fixed on the intermediate shaft fixing seat, a third spur bevel gear is provided on one side of the intermediate shaft, and the third spur bevel gear is used to mesh with and drive the first spur bevel gear or the second spur bevel gear of the input shaft assembly, and a fourth spur bevel gear is provided on the other side of the intermediate shaft, and the fourth spur bevel gear is used to mesh with and drive the output shaft assembly.

4. A harvester drive axle box capable of achieving single input and dual output according to claim 1 or 3, characterized in that: The output shaft assembly includes an output shaft, on which a fifth spur bevel gear is provided. The fifth spur bevel gear is used to mesh with the fourth spur bevel gear of the transmission intermediate shaft assembly.

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