Gearbox for corn harvester

Abstract

The gearbox for the corn harvester relates to the technical field of gearboxes and comprises a shell, a square groove is formed in the top of the shell in a penetrating mode, a liquid box is fixedly connected into the square groove, a sliding groove is formed in the bottom end of the outer wall of the liquid box, and liquid holes are formed in the upper end and the lower end of the sliding groove. The liquid hole located in the upper position is communicated with an inner cavity of the liquid box, the liquid hole located in the lower position penetrates through the lower surface of the liquid box, a sliding block is arranged in the sliding groove in a sliding mode, a through hole is formed in the sliding block, the through hole is matched with the upper liquid hole and the lower liquid hole, and a square block is fixedly connected to the end, located outside the sliding groove, of the sliding block. According to the gearbox for the corn harvester, by arranging the liquid box, the liquid holes, the sliding blocks and other structures, intermittent automatic lubricating liquid adding is achieved, meanwhile, the stirring strips swing, the lubricating liquid can be stirred, the lubricating liquid dripping efficiency is improved, the uniformity of the lubricating liquid is guaranteed, and therefore the use efficiency of the gearbox for the corn harvester is improved.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a gearbox for a corn harvester. Background Technology

[0002] A gearbox is a device in automobiles or other mechanical equipment used to change the transmission ratio to match the speed of the wheels and the engine. It can adjust the relationship between the wheel speed and the engine speed by changing the transmission ratio to meet the needs of different driving conditions.

[0003] After prolonged use, the friction between the transmission gears in a corn harvester's gearbox increases. In existing technology, lubricating oil is usually added manually by the operator, which is quite cumbersome.

[0004] Therefore, it is necessary to propose a gearbox for corn harvesters to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a gearbox for corn harvesters to solve the problem that after long-term use, the friction between the transmission gears of corn harvesters will increase. In the prior art, the operator usually has to manually add lubricating oil, which is a rather cumbersome operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gearbox for a corn harvester, comprising a housing, a square groove extending through the top of the housing, a liquid box fixedly connected inside the square groove, a sliding groove at the bottom of the outer wall of the liquid box, and liquid holes at both the upper and lower ends of the sliding groove. The upper liquid hole communicates with the inner cavity of the liquid box, and the lower liquid hole penetrates the lower surface of the liquid box. A slider is slidably disposed inside the sliding groove, and a through hole is provided on the slider, which cooperates with the upper and lower liquid holes. A block is fixedly connected to one end of the slider outside the sliding groove. A circular hole is provided on the side wall of the liquid box, and a sliding rod is slidably disposed inside the circular hole. An agitator is fixedly connected to one end of the sliding rod inside the liquid box cavity, and the end of the sliding rod away from the agitator is fixedly connected to the block.

[0007] Preferably, the agitator bar is S-shaped.

[0008] Preferably, a magnet is fixedly embedded on the side of the block facing away from the slider.

[0009] Preferably, a drive shaft is rotatably provided at one end of the housing, and a drive wheel is fixedly connected to the drive shaft. A driven shaft is rotatably provided at the other end of the housing, and a driven wheel is fixedly connected to the driven shaft. The drive wheel and the driven wheel are meshed together, and the liquid box is located above the meshing position of the drive wheel and the driven wheel.

[0010] Preferably, a vertical plate is fixedly connected to the bottom end of the block, and the vertical plate and the block are distributed in an L-shape. A rotating bar is fixedly connected to the driven shaft, and the rotating bar is pressed and engaged with the vertical plate.

[0011] Preferably, a spring is provided inside the slide groove, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the inner wall of the slide groove.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model achieves intermittent automatic addition of lubricating fluid by setting up structures such as a liquid box, liquid hole and slider. At the same time, the oscillating bar can agitate the lubricating fluid, improve the efficiency of lubricating fluid dripping, and ensure the uniformity of lubricating fluid, thereby improving the efficiency of the gearbox of the corn harvester.

[0014] 2. A magnet is installed to attract iron filings generated by the wear of the driving wheel and the driven wheel, further reducing wear. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the gearbox structure for a corn harvester according to this utility model.

[0016] Figure 2 This is a schematic diagram of the vertical plate and rotating bar structure of this utility model.

[0017] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] Figure 4 This is a schematic diagram of the shell structure of this utility model.

[0019] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Shell; 2. Liquid box; 3. Slide groove; 4. Liquid hole; 5. Slider; 6. Through hole; 7. Round hole; 8. Slide rod; 9. Block; 10. Magnet; 11. Stirring bar; 12. Drive shaft; 13. Drive wheel; 14. Vertical plate; 15. Rotating bar; 16. Driven shaft; 17. Driven wheel; 18. Spring. Detailed Implementation

[0021] This utility model provides, for example Figures 1-5The gearbox for a corn harvester shown includes a housing 1. A drive shaft 12 is rotatably mounted on one end of the housing 1, and a drive wheel 13 is fixedly connected to the drive shaft 12. A driven shaft 16 is rotatably mounted on the other end of the housing 1, and a driven wheel 17 is fixedly connected to the driven shaft 16. The drive wheel 13 and the driven wheel 17 are meshed together. The drive wheel 13 and the driven wheel 17, among other structures, cooperate to change the transmission ratio to achieve speed matching between the wheels and the engine, meeting the needs of the corn harvester under different driving conditions.

[0022] Considering that wear is likely to occur between the drive wheel 13 and the driven wheel 17 after long-term use of the gearbox, especially in large machines such as corn harvesters, the current practice is to manually add lubricating oil by the operator, which is quite cumbersome. In order to improve the efficiency of the gearbox, a square groove is provided through the top of the housing 1. The liquid box 2 is located above the meshing position of the drive wheel 13 and the driven wheel 17. The liquid box 2 is fixedly connected inside the square groove. Lubricating oil is injected into the liquid box 2. A sliding groove 3 is provided at the bottom of the outer wall of the liquid box 2. Liquid holes 4 are provided at both the upper and lower ends of the sliding groove 3. The liquid hole 4 located at the upper position communicates with the inner cavity of the liquid box 2. The liquid hole 4 located at the lower position penetrates the lower surface of the liquid box 2. A slider 5 is slidably arranged inside the sliding groove 3. A through hole 6 is provided on the slider 5. The through hole 6 cooperates with the upper and lower liquid holes 4.

[0023] The slider 5 slides inside the groove 3. When the through hole 6 is connected to the upper and lower liquid holes 4, the lubricant can pass through the through hole 6 and drip into the meshing position of the driving wheel 13 and the driven wheel 17, thereby achieving the lubrication effect. When the through hole 6 is misaligned with the upper and lower liquid holes 4, the slider 5 will separate the upper and lower liquid holes 4, and the lubricant will stop dripping.

[0024] The top of the liquid tank 2 is equipped with an injection pipe and a cap, and the lubricant is replenished through the injection pipe.

[0025] To improve the efficiency of lubricant dripping, a block 9 is fixedly connected to one end of the slider 5 outside the chute 3. A circular hole 7 is provided on the side wall of the liquid box 2, and a sliding rod 8 is slidably installed inside the circular hole 7. An agitator 11 is fixedly connected to one end of the sliding rod 8 inside the liquid box 2. The agitator 11 is S-shaped to expand the agitation range. The end of the sliding rod 8 away from the agitator 11 is fixedly connected to the block 9. The agitator 11 swings back and forth, which can agitate the lubricant, improve the efficiency of lubricant dripping, and ensure the uniformity of the lubricant.

[0026] A vertical plate 14 is fixedly connected to the bottom of block 9. The vertical plate 14 and block 9 are arranged in an L-shape. A rotating bar 15 is fixedly connected to the driven shaft 16. The rotating bar 15 and the vertical plate 14 are in a pressing fit. A spring 18 is provided inside the slide groove 3. One end of the spring 18 is fixedly connected to the slider 5, and the other end of the spring 18 is fixedly connected to the inner wall of the slide groove 3.

[0027] Specifically, the driven shaft 16 drives the rotating bar 15 to rotate synchronously. When the rotating bar 15 contacts the vertical plate 14, it will squeeze the slider 5 into the groove 3 through the vertical plate 14 and the block 9. When the through hole 6 is connected to the upper and lower liquid holes 4, the lubricant can drip through the through hole 6 and the liquid holes 4 onto the meshing position of the driving wheel 13 and the driven wheel 17, thereby achieving the lubrication effect. At the same time, the agitator bar 11 is moved by the slide rod 8. When the rotating bar 15 is misaligned with the vertical plate 14, the return force of the spring 18 makes the slider 5 return to its original position. The through hole 6 is misaligned with the upper and lower liquid holes 4, and the slider 5 separates the upper and lower liquid holes 4, so the lubricant stops dripping. At the same time, the agitator bar 11 returns to its original position. With the continuous rotation of the driven shaft 16, the lubricant is added intermittently and automatically.

[0028] By setting up structures such as liquid box 2, liquid hole 4 and slider 5, intermittent automatic addition of lubricating fluid is achieved. At the same time, the agitator bar 11 swings to agitate the lubricating fluid, improve the efficiency of lubricating fluid dripping, and ensure the uniformity of lubricating fluid, thereby improving the efficiency of the gearbox used in corn harvesters.

[0029] A magnet 10 is fixedly embedded on the side of block 9 facing away from slider 5. The magnet 10 has a suitable magnetic strength, which does not affect the use of the driving wheel 13 and driven wheel 17. The setting position can be adjusted according to the specific use. The magnet 10 can attract iron filings generated by the wear of the driving wheel 13 and driven wheel 17, further reducing wear; and the attracted iron filings can be collected and disposed of by the operator.

Claims

1. A gearbox for a corn harvester, comprising a housing (1), characterized in that: A square groove is formed through the top of the housing (1), and a liquid box (2) is fixedly connected inside the square groove. A sliding groove (3) is formed at the bottom of the outer wall of the liquid box (2). Liquid holes (4) are formed at both the upper and lower ends of the sliding groove (3). The liquid hole (4) located at the upper position communicates with the inner cavity of the liquid box (2), and the liquid hole (4) located at the lower position penetrates the lower surface of the liquid box (2). A slider (5) is slidably arranged inside the sliding groove (3). A through-hole is formed on the slider (5). Hole (6), the through hole (6) cooperates with the upper and lower liquid holes (4), the slider (5) is fixedly connected to a block (9) at one end outside the slide groove (3), a round hole (7) is opened on the side wall of the liquid box (2), a slide rod (8) is slidably arranged inside the round hole (7), a stirring bar (11) is fixedly connected to one end of the slide rod (8) in the inner cavity of the liquid box (2), and the end of the slide rod (8) away from the stirring bar (11) is fixedly connected to the block (9).

2. The gearbox for a corn harvester according to claim 1, characterized in that: The stirring bar (11) is S-shaped.

3. The gearbox for a corn harvester according to claim 1, characterized in that: A magnet (10) is fixedly embedded on the side of the block (9) facing away from the slider (5).

4. The gearbox for a corn harvester according to claim 1, characterized in that: One end of the housing (1) is rotatably provided with a drive shaft (12), and a drive wheel (13) is fixedly connected to the drive shaft (12). The other end of the housing (1) is rotatably provided with a driven shaft (16), and a driven wheel (17) is fixedly connected to the driven shaft (16). The drive wheel (13) and the driven wheel (17) are meshed together. The liquid box (2) is located above the meshing position of the drive wheel (13) and the driven wheel (17).

5. A gearbox for a corn harvester according to claim 4, characterized in that: A vertical plate (14) is fixedly connected to the bottom end of the block (9). The vertical plate (14) and the block (9) are arranged in an L-shape. A rotating bar (15) is fixedly connected to the driven shaft (16). The rotating bar (15) and the vertical plate (14) are pressed together.

6. The gearbox for a corn harvester according to claim 1, characterized in that: A spring (18) is provided inside the slide groove (3). One end of the spring (18) is fixedly connected to the slider (5), and the other end of the spring (18) is fixedly connected to the inner wall of the slide groove (3).

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