Grain leakage prevention device of grain unloading barrel

Abstract

The utility model discloses a grain leakage prevention device of a grain unloading barrel, which belongs to the field of agricultural equipment and comprises a grain unloading barrel body, a rotating shaft is arranged at the bottommost part of the outlet end of the grain unloading barrel body, a baffle is rotatably arranged on the rotating shaft, and the baffle swings around the rotating shaft and can block at least 1 / 4 of the area below the outlet of the grain unloading barrel body; fixing columns are arranged on the side walls of the two sides, close to the outlet end, of the grain unloading barrel correspondingly, and the positions of the fixing columns are higher than the positions of the uppermost ends of the baffles. The two sides of the baffle extend out of the grain unloading barrel, two connecting holes are formed in the two sides, close to the upper portion of the baffle, of the grain unloading barrel, the connecting hole in each side is connected with the corresponding fixing column through a tension spring, and the tension springs can make the baffle abut against the outlet end of the grain unloading barrel. According to the structure, the condition of grain leakage of the grain unloading barrel can be avoided, meanwhile, the fault rate is low, and subsequent improvement and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment field, concretely relates to a grain leakage prevention device of grain unloading cylinder. BACKGROUND

[0002] The grain is stored in the granary after the harvesting operation of the seed harvesting machine, when the grain is unloaded from the granary, the grain unloading cylinder needs to be put out, the end of the grain unloading cylinder is put to one side of the seed harvesting machine, because of the angle of the elbow box at the end of the grain unloading cylinder, the grain unloading cylinder in the open state is lifted, that is, the grain unloading cylinder is arranged upwardly along the material conveying direction, thereby more effectively achieving the grain unloading requirement.

[0003] Specifically, after the grain unloading is finished, due to the inclination angle of the grain unloading cylinder, part of the grain remains in the grain unloading cylinder, when the grain unloading cylinder is closed and returns to the original position, the inclined grain unloading cylinder can be kept in the horizontal state again, during the driving process behind the harvesting machine, the grain kernels remaining in the grain unloading cylinder can leak out due to the road surface from high to low inclination or vibration, and a small part of the kernels close to the outlet of the grain unloading cylinder can fall to the ground, causing grain leakage and economic loss.

[0004] The traditional solution is to overcome by setting a baffle and a torsional spring at the hinge position of the baffle, but the torsional spring bears a large force at the hinge position, is often damaged and is difficult to replace.

[0005] In view of the above problems, the utility model designs and manufactures a grain leakage prevention device of grain unloading cylinder to overcome the above defects. SUMMARY

[0006] For the problems existing in the prior art, the grain leakage prevention device of grain unloading cylinder can avoid the grain leakage of the grain unloading cylinder, has low failure rate and is convenient to improve and maintain.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a grain leakage prevention device of grain unloading cylinder, including the grain unloading cylinder body, the bottom of the outlet end of the grain unloading cylinder body is provided with a rotating shaft, the baffle is rotationally arranged on the rotating shaft, the baffle can block at least 1 / 4 of the area below the outlet of the grain unloading cylinder body by swinging around the rotating shaft;

[0008] The two side walls of the grain unloading cylinder body near the outlet end are provided with fixed columns, and the positions of the fixed columns are higher than the uppermost positions of the baffles;

[0009] The baffles extend out of the grain unloading cylinder body on both sides, two connecting holes are arranged on both sides near the upper positions of the baffles, the connecting holes on each side and the fixed columns are connected by tension springs, and the tension springs can make the baffles abut against the outlet end of the grain unloading cylinder body.

[0010] Preferably, the outer side wall of the bottom of the discharge cylinder outlet end is provided with a connecting block, a limiting bolt is screwed on the connecting block, and the center line of the limiting bolt is parallel to the center line of the discharge cylinder.

[0011] When the baffle rotates around the rotating shaft to unload under the pull of the tension spring, the limiting bolt can abut on the end face of the baffle to limit the angle of the baffle.

[0012] Preferably, the extension length of the tension spring is greater than the position change amount when the baffle swings.

[0013] Preferably, the outlet of the discharge cylinder is an inclined bevel structure.

[0014] The distance between the bottom of the outlet end of the discharge cylinder and the root of the discharge cylinder is less than the distance between the top of the outlet end of the discharge cylinder and the root of the discharge cylinder.

[0015] Preferably, the upper half of the outlet end of the discharge cylinder extends forward by at least 10 cm.

[0016] Preferably, the structure of the upper half of the outlet end of the discharge cylinder extending out is an extension part, a blocking cover is connected to the end of the extension part, and the blocking cover covers at least 2 / 3 of the area of the opening of the end of the extension part.

[0017] Preferably, the baffle is provided with a wear-resistant coating close to the side of the discharge cylinder.

[0018] Preferably, an arc-shaped plate is arranged close to the bottom of the outlet end of the discharge cylinder, and the rotating shaft and the tension spring are connected to the arc-shaped plate.

[0019] Preferably, the arc-shaped plate is detachably connected to the discharge cylinder.

[0020] The utility model has the advantages of:

[0021] 1. The utility model sets the tension spring on the two sides of the baffle and the discharge cylinder to reset the baffle, which not only reduces the difficulty of resetting the baffle, but also makes the replacement of the tension spring more convenient and simple compared with the traditional structure of setting the torsional spring at the rotating shaft. More importantly, since the tension spring is located on the two sides of the outlet, the tension spring will not be impacted during unloading. However, the traditional torsional spring is located below the outlet, so the effect of the torsional spring is greatly reduced due to the entry of the seeds into the torsional spring. Moreover, the torsional spring is also ineffective due to the mixture of soil and sundries in the seeds.

[0022] 2. The outlet of the discharge cylinder is an inclined bevel structure, which cooperates with the inclination angle of the tension spring to make the pulling force of the tension spring as perpendicular as possible to the swinging direction of the baffle, so that the baffle can be quickly reset to prevent seed leakage after unloading.

[0023] 3. The sealing cap structure at the end of the extension of this utility model ensures that the grains can move downwards during unloading.

[0024] 4. The curved plate design allows for easy and direct replacement of the existing baffle structure, improving the efficiency of subsequent replacement and maintenance. Attached Figure Description

[0025] Figure 1 A partial schematic diagram of a grain unloading hopper anti-leakage device;

[0026] Figure 2 This is a schematic diagram showing the positional changes of the unloading cylinder of this utility model.

[0027] In the diagram: 1. Unloading cylinder body; 2. Arc plate; 3. Baffle; 4. Connecting block; 5. Limiting bolt; 6. Tension spring; 7. Extension; 8. Sealing cover. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0029] like Figure 1 , Figure 2 As shown, a grain unloading cylinder anti-leakage device includes a grain unloading cylinder body 1. A rotating shaft is provided at the bottom of the outlet end of the grain unloading cylinder body 1. A baffle 3 is rotatably installed on the rotating shaft. The baffle 3 can swing around the rotating shaft to block at least 1 / 4 of the area below the outlet of the grain unloading cylinder body 1, thus preventing the grain remaining in the grain unloading cylinder body 1 from leaking out of the outlet after unloading.

[0030] The unloading cylinder 1 of this utility model has fixed posts on both side walls near the outlet end. The fixed posts are positioned higher than the uppermost position of the baffle 3. The unloading cylinder 1 extends from both sides of the baffle 3. Two connecting holes are provided on both sides near the upper position of the baffle 3. Each connecting hole is connected to the fixed post by a tension spring 6. The tension length of the tension spring 6 is greater than the position change of the baffle 3 when it swings. The tension spring 6 enables the baffle 3 to abut against the outlet end of the unloading cylinder 1.

[0031] By using tension springs 6 on both sides of the baffle 3 and the unloading cylinder 1 to reset the baffle 3, the difficulty of resetting the baffle 3 is reduced. Moreover, even if the tension springs 6 need to be replaced, it is more convenient and simpler to replace them than the traditional structure of setting torsion springs at the shaft. More importantly, since the tension springs 6 are located on both sides of the outlet, they will not be impacted during unloading. In contrast, the traditional torsion springs, located below the outlet, often suffer from a significant reduction in torsion spring effect due to grain entering the torsion spring. Furthermore, the torsion springs often fail after entering the torsion spring due to the presence of mud and debris mixed in with the grain. This invention can completely solve the above problems.

[0032] The outer side wall of the bottom of the outlet end of the grain unloading cylinder 1 is provided with a connecting block 4, a limiting bolt 5 is screwed on the connecting block 4, the center line of the limiting bolt 5 is parallel to the center line of the grain unloading cylinder 1, and the limiting bolt 5 can abut on the end face of the baffle 3 to limit the angle of the baffle 3 when the baffle 3 rotates around the rotating shaft against the tension of the tension spring 6 during grain unloading.

[0033] The outlet of the grain unloading cylinder 1 is an inclined groove structure, specifically, the distance between the bottom of the outlet end of the grain unloading cylinder 1 and the root of the grain unloading cylinder 1 is less than the distance between the top of the outlet end of the grain unloading cylinder 1 and the root of the grain unloading cylinder 1, which is to cooperate with the inclination angle of the tension spring 6, so that the tension of the tension spring 6 is perpendicular to the swinging direction of the baffle 3 as much as possible, and the baffle 3 can be quickly reset to prevent grain leakage after the grain unloading is completed.

[0034] The upper half of the outlet end of the grain unloading cylinder 1 extends forward by at least 10 cm, the structure of the upper half of the outlet end of the grain unloading cylinder 1 extending out is provided as an extension part 7, the end of the extension part 7 is connected with a plugging cover 8, the plugging cover 8 covers at least 2 / 3 of the area of the opening of the end of the extension part 7, which ensures that the grain can move downward during grain unloading.

[0035] The baffle 3 is preferably provided with a wear-resistant coating on the side close to the grain unloading cylinder 1, which improves the service life of the baffle 3.

[0036] An arc-shaped plate 2 is arranged close to the bottom of the outlet end of the grain unloading cylinder 1, the rotating shaft and the tension spring 6 are connected to the arc-shaped plate 2, and the arc-shaped plate 2 is detachably connected to the grain unloading cylinder 1, which is to facilitate the direct replacement of the existing baffle 3 structure as a whole, and improve the efficiency of later replacement and maintenance.

[0037] It should be understood that the use of these embodiments is only for the purpose of illustrating the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various modifications, modifications and / or variations to the utility model, and all these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. A grain unloading hopper anti-leakage device, characterized in that, Including unloading cylinder (1), the bottom of the outlet end of the unloading cylinder (1) is provided with a rotating shaft, the rotating shaft is provided with a baffle (3) rotatingly, the baffle (3) can block at least 1 / 4 area below the outlet of the unloading cylinder (1) by swinging around the rotating shaft; The unloading cylinder (1) is provided with a fixed column on the side wall of the outlet end of the unloading cylinder (1), and the position of the fixed column is higher than the uppermost position of the baffle (3); The baffle (3) extends out of the unloading cylinder (1) on both sides, and two connecting holes are arranged on both sides near the upper position of the baffle (3), and the connecting hole on each side and the fixed column are connected by a tension spring (6), the tension spring (6) can make the baffle (3) abut against the outlet end of the unloading cylinder (1).

2. The grain leakage preventing device for the unloading cylinder according to claim 1, characterized in that, The outer wall of the bottom of the outlet end of the unloading cylinder (1) is provided with a connecting block (4), the connecting block (4) is screwed with a limiting bolt (5), and the center line of the limiting bolt (5) is parallel to the center line of the unloading cylinder (1); When the baffle (3) rotates around the rotating shaft to unload, the limiting bolt (5) can abut against the end face of the baffle (3) to limit the angle of the baffle (3).

3. The grain leakage preventing device for the unloading cylinder according to claim 1, characterized in that, The stretching length of the tension spring (6) is greater than the position change amount when the baffle (3) swings.

4. The grain leakage preventing device for the unloading cylinder according to claim 1, characterized in that, The outlet of the unloading cylinder (1) is an inclined bevel structure; The distance between the bottom of the outlet end of the unloading cylinder (1) and the root of the unloading cylinder (1) is less than the distance between the top of the outlet end of the unloading cylinder (1) and the root of the unloading cylinder (1).

5. The grain leakage preventing device for the unloading cylinder according to claim 1, characterized in that, The upper half of the outlet end of the unloading cylinder (1) extends forward by at least 10cm.

6. The grain leakage preventing device for the unloading cylinder according to claim 5, characterized in that, The structure of the upper half of the outlet end of the unloading cylinder (1) extending out is an extension part (7), the extension part (7) is connected with a blocking cover (8), and the blocking cover (8) covers at least 2 / 3 of the area of the opening of the extension part (7).

7. The grain leakage preventing device for the unloading cylinder according to claim 1, characterized in that, The baffle (3) is provided with a wear-resistant coating near one side of the unloading cylinder (1).

8. The grain leakage preventing device for the unloading cylinder according to claim 1, characterized in that, An arc-shaped plate (2) is arranged near the bottom of the outlet end of the unloading cylinder (1), and the rotating shaft and the tension spring (6) are connected to the arc-shaped plate (2).

9. The grain auger leak protection device of claim 8, wherein, The arc-shaped plate (2) is detachably connected with the unloading cylinder (1).

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