Three-direction positive and negative rotation transmission device of harvester

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a harvester three-direction positive and negative rotation transmission device which comprises a three-direction box body, the right side of the three-direction box body is rotationally connected with an input belt pulley, and the rear side of the three-direction box body is rotationally connected with an output transmission shaft flange. A positive and negative rotation stop lever is arranged at the top of the three-direction box body, an input main shaft is rotationally connected to the left side of the three-direction box body, an output chain wheel is fixedly connected to the rear side of the input main shaft, and a plurality of positive and negative rotation output gear pairs are rotationally connected to the interior of the three-direction box body; a forward and reverse rotation output spline synchronous sleeve is arranged on the rear side of the input belt wheel, and the bottom of the forward and reverse rotation stop lever is fixedly connected with a forward and reverse rotation output shifting fork. According to the utility model, the output transmission shaft flange, the positive and negative rotation stop lever, the positioning shaft and other structures are matched for use, so that faults of a transmission chain of equipment are reduced, the working efficiency is improved, the equipment runs more stably, and the safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a three-direction forward and reverse transmission device for a harvester. Background Art

[0002] The three-way forward and reverse transmission device of the harvester is a device used to control the working state and direction of the harvester. It is usually used to manipulate the cutting and feeding functions of the harvester so as to harvest crops under different conditions. With the rapid development of China's urbanization transformation, there is a serious shortage of rural labor and the harvesting problem is becoming increasingly serious, although agricultural machinery has been popularized to a certain extent.

[0003] In the prior art, some traditional three-way forward and reverse transmission devices for harvesters have problems that need to be solved urgently during use due to the harsh working environment of the harvester, complex chain transmission, and frequent chain dropping and jamming, resulting in equipment damage and heavy maintenance workload affecting rush harvesting. Therefore, in response to the above problems, a three-way forward and reverse transmission device for harvesters is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a three-direction forward and reverse transmission device for a harvester, aiming to improve the problem that the prior art cannot reduce the failure of the equipment transmission chain.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-way forward and reverse transmission device for a harvester, comprising a three-way box, the right side of the three-way box is rotatably connected to an input pulley, the rear side of the three-way box is rotatably connected to an output transmission shaft flange, a forward and reverse shift lever is provided on the top of the three-way box, the left side of the three-way box is rotatably connected to an input main shaft, the rear side of the input main shaft is fixedly connected to an output sprocket, the interior of the three-way box is rotatably connected to a plurality of forward and reverse output gear pairs, a forward and reverse output spline synchronous sleeve is provided on the rear side of the input pulley, the bottom of the forward and reverse shift lever is fixedly connected to a forward and reverse output fork, and the bottom of the forward and reverse output fork is fixedly connected to a positioning shaft.

[0006] Furthermore, the inside of the input pulley is fixedly connected to the outside of the input main shaft, and the front outside of the output transmission shaft flange is fixedly connected to the inside of the forward and reverse output gear pair.

[0007] Furthermore, the right side of the input main shaft is fixedly connected to the left side of the forward and reverse output spline synchronization sleeve, and the outer part of the forward and reverse output fork is rotationally connected to the outside of the three-way box.

[0008] Furthermore, the interior of one of the forward and reverse output gear pairs is fixedly connected to the outside of the output transmission shaft flange, the interior of another of the forward and reverse output gear pairs is fixedly connected to the outside of the input main shaft, and the interior of another of the forward and reverse output gear pairs is fixedly connected to the left side of the input pulley, and the multiple forward and reverse output gear pairs are meshedly connected.

[0009] Furthermore, the outside of the positioning shaft is fixedly connected to the inside of the three-direction box.

[0010] The utility model has the following beneficial effects:

[0011] In the utility model, through the coordinated use of structures such as the input pulley, the output transmission shaft flange, the forward and reverse blocking lever, the three-way box, the output sprocket, the forward and reverse output gear pair, the forward and reverse output spline synchronization sleeve, the forward and reverse output shift fork, the positioning shaft, and the input main shaft, the equipment transmission chain failure is reduced, the processing and production adaptability is stronger, the work efficiency is higher, the equipment operation is more stable, and the safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional diagram of a three-direction forward and reverse transmission device for a harvester proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the input spindle structure of a three-direction forward and reverse transmission device for a harvester proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the input pulley structure of a three-direction forward and reverse transmission device for a harvester proposed by the utility model;

[0015] Figure 4 This is a schematic diagram of the forward and reverse output fork structure of a three-direction forward and reverse transmission device for a harvester proposed by the utility model;

[0016] Figure 5 This is a cross-sectional view of the forward and reverse output gear pair structure of a three-direction forward and reverse transmission device for a harvester proposed by the utility model;

[0017] Figure 6 The utility model is a schematic diagram of the forward and reverse shift lever structure of a three-direction forward and reverse transmission device for a harvester.

[0018] Legend:

[0019] 1. Input pulley; 2. Output drive shaft flange; 3. Forward and reverse shift lever; 4. Three-way box; 5. Output sprocket; 6. Forward and reverse output gear pair; 7. Forward and reverse output spline synchronous sleeve; 8. Forward and reverse output shift fork; 9. Positioning shaft; 10. Input spindle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1 - Figure 3 As shown, an embodiment of the utility model is provided: a three-way forward and reverse transmission device for a harvester, comprising a three-way box 4, which is the main part of the transmission device and has a special structure so that it can rotate in three directions. This design provides greater flexibility and versatility. The right side of the three-way box 4 is rotatably connected to an input pulley 1, which is located on the right side of the three-way box 4 and is used to receive power transmitted by an external power source. The rotation of the input pulley 1 is synchronized with the rotation of the external power source. The inside of the input pulley 1 is fixedly connected to the outside of the input main shaft 10, and the rear side of the three-way box 4 is rotatably connected to an output drive shaft flange 2, which is located on the rear side of the three-way box 4 and is connected to the internal transmission system for transmitting power to other mechanical components, such as a cutting knife or other functional modules of the harvester.

[0022] Reference Figure 4 - Figure 6 As shown, the front side of the output transmission shaft flange 2 is fixedly connected to the inside of the forward and reverse output gear pair 6, wherein the inside of one of the forward and reverse output gear pairs 6 is fixedly connected to the outside of the output transmission shaft flange 2, wherein the inside of another forward and reverse output gear pair 6 is fixedly connected to the outside of the input main shaft 10, wherein the inside of another forward and reverse output gear pair 6 is fixedly connected to the left side of the input pulley 1, and the multiple forward and reverse output gear pairs 6 are meshingly connected, and a forward and reverse shift lever 3 is provided on the top of the three-way box 4. The forward and reverse shift lever 3 is located at the top of the three-way box 4 and is used to control the forward and reverse rotation of the transmission device. This shift lever may be achieved through the operation of a mechanical or hydraulic system to control the rotation direction of the output shaft, and the rear side of the input main shaft 10 is fixedly connected to an output sprocket 5, which is a part of the input main shaft 10 and is used to transmit power to other components inside the three-way box 4. The inside of the three-way box 4 is rotatably connected with multiple forward and reverse output gear pairs 6. The forward and reverse output gear pair 6 is a key transmission component responsible for controlling and transmitting power to the forward and reverse output fork 8 to achieve the forward and reverse function.

[0023] Reference Figure 4As shown, a forward and reverse output spline synchronous sleeve 7 is provided on the rear side of the input pulley 1. The forward and reverse output spline synchronous sleeve 7 coordinates with the forward and reverse gear lever 3 to synchronously control the forward and reverse functions to ensure the accuracy and reliability of the transmission. A forward and reverse output fork 8 is fixedly connected to the bottom of the forward and reverse gear lever 3. The forward and reverse output fork 8 is responsible for controlling the movement direction of the output transmission shaft through the coordination of the forward and reverse output spline synchronous sleeve 7. The external rotation of the forward and reverse output fork 8 is connected to the outside of the three-way box 4. The bottom of the forward and reverse output fork 8 is fixedly connected to a positioning shaft 9. The positioning shaft 9 is used to provide additional support and positioning to ensure that the forward and reverse output fork 8 can move stably. The external positioning shaft 9 is fixedly connected to the inside of the three-way box 4. The left side of the three-way box 4 is rotationally connected to an input main shaft 10. The input main shaft 10 is a rotating component connected to the input pulley 1. It is responsible for transmitting the power from the input pulley 1 to the internal transmission system. The right side of the input main shaft 10 is fixedly connected to the left side of the forward and reverse output spline synchronous sleeve 7.

[0024] Working principle: When harvesting, the engine drives the input pulley 1 to drive the input main shaft 10 to drive the forward and reverse output spline synchronous sleeve 7 to rotate and combine with the forward and reverse output gear pair 6, and the output transmission shaft flange 2 is rotated through the forward and reverse output fork 8 and the positioning shaft 9. This harvester's three-way forward and reverse transmission device realizes power transmission, direction conversion and forward and reverse function selection through a reasonable mechanical structure and control system, thereby improving the harvester's adaptability and work efficiency. When the forward and reverse lever 3 is operated to realize the forward and reverse conversion with the forward and reverse output gear pair 6, the transmission shaft output connection is used, which reduces the equipment transmission chain failure, and the processing and production adaptability is stronger, the work efficiency is higher, the equipment operation is more stable, and the safety is higher.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-direction forward and reverse transmission device for a harvester, comprising a three-direction housing (4), characterized in that: The right side of the three-way box (4) is rotatably connected to an input pulley (1), the rear side of the three-way box (4) is rotatably connected to an output transmission shaft flange (2), a forward and reverse shift lever (3) is arranged on the top of the three-way box (4), the left side of the three-way box (4) is rotatably connected to an input main shaft (10), the rear side of the input main shaft (10) is fixedly connected to an output sprocket (5), the interior of the three-way box (4) is rotatably connected to a plurality of forward and reverse output gear pairs (6), the rear side of the input pulley (1) is provided with a forward and reverse output spline synchronous sleeve (7), the bottom of the forward and reverse shift lever (3) is fixedly connected to a forward and reverse output shift fork (8), and the bottom of the forward and reverse output shift fork (8) is fixedly connected to a positioning shaft (9).

2. A three-direction forward and reverse transmission device for a harvester according to claim 1, characterized in that: The inside of the input pulley (1) is fixedly connected to the outside of the input main shaft (10), and the front outside of the output transmission shaft flange (2) is fixedly connected to the inside of the forward and reverse output gear pair (6).

3. A three-direction forward and reverse transmission device for a harvester according to claim 1, characterized in that: The right side of the input main shaft (10) is fixedly connected to the left side of the forward and reverse output spline synchronization sleeve (7), and the outer side of the forward and reverse output shift fork (8) is rotationally connected to the outside of the three-way box (4).

4. A three-direction forward and reverse transmission device for a harvester according to claim 1, characterized in that: The interior of one of the forward and reverse output gear pairs (6) is fixedly connected to the exterior of the output transmission shaft flange (2), the interior of another of the forward and reverse output gear pairs (6) is fixedly connected to the exterior of the input main shaft (10), the interior of another of the forward and reverse output gear pairs (6) is fixedly connected to the left side of the input pulley (1), and the plurality of forward and reverse output gear pairs (6) are meshingly connected.

5. The three-direction forward and reverse transmission device for a harvester according to claim 1, characterized in that: The outside of the positioning shaft (9) is fixedly connected to the inside of the three-direction box (4).

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