Transmission chain tensioning mechanism of grain drying machine

Abstract

The utility model discloses a transmission chain tensioning mechanism of a grain dryer, belongs to the technical field of grain dryers, and aims to solve the problems that an existing conveying belt is in a fixed tension state and cannot be adjusted in time when used for conveying grains, the elasticity of the conveying belt is reduced after long-time use, the grain bearing capacity of the conveying belt is affected, and the conveying belt cannot be adjusted in time. The conveying efficiency is reduced; and accelerated wear of the conveying belt is increased. Grain can be conveyed through a conveying belt and an air rod, the air rod can descend according to the weight of the grain, when the air rod descends, a T-shaped inclined block can move in a T-shaped inclined groove, meanwhile, a vertical plate slides on the outer surface of an inclined sliding plate, a chain is driven to move, and therefore the chain is tightened, and the conveying efficiency is improved. The effect that the chain tensioning can be adjusted according to the weight of grains is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain dryers, in particular to a transmission chain tensioning mechanism for a grain dryer. Background Art

[0002] Grain dryer is an agricultural machine used to remove excess moisture from grains. It accelerates the grain drying process through a hot air circulation system to ensure safe grain storage and extend the shelf life. Dryers usually include loading, drying, cooling and unloading, and can handle different types of grains, such as wheat, corn, etc. Modern dryers also have automatic control functions to improve drying efficiency, reduce energy consumption, and ensure grain quality. However, the conveyor belts of existing grain dryers are in a fixed and taut state when conveying grain. After long-term use, the elasticity of the conveyor belts is reduced, affecting their carrying capacity for grain, resulting in reduced conveying efficiency and increased accelerated wear of the conveyor belts. Utility Model Content

[0003] The utility model aims to provide a transmission chain tensioning mechanism for a grain dryer. The device is adopted to work, thereby solving the problem that the existing conveyor belt is in a fixed tension state when conveying grain and cannot be adjusted in time. After long-term use, the elasticity of the conveyor belt is reduced, affecting its carrying capacity for grain, resulting in a decrease in conveying efficiency and an increase in accelerated wear of the conveyor belt.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission chain tensioning mechanism of a grain dryer, comprising a base, wherein a conveying assembly is fixedly installed inside the base;

[0005] The conveying assembly includes a motor movably installed inside the base, and the motor is provided with two groups. Gas rods are fixedly installed on the lower surfaces of the two groups of motors, one group of gas rods has a bottom plate fixedly installed on the lower surface of the bottom plate, a fixed plate is fixedly installed on the lower surface of the bottom plate, and a roller is fixedly installed on the fixed plate. A driving rod is fixedly installed on the output end of the motor, and a connecting block is fixedly installed on one side of the driving rod, and the connecting block is fit-connected to the inner wall of the base, one group of connecting blocks has a T-shaped oblique block fixedly installed on one side, and the other group of connecting blocks has a T-shaped straight block fixedly installed on one side.

[0006] Preferably, a bearing is sleeved on the outer surface of the driving rod, an arc plate is sleeved on the outer surface of the bearing, and a connecting plate is fixedly installed on one side of the arc plate.

[0007] Preferably, a grain shifting wheel is sleeved on the outer surface of the driving rod, a chain is sleeved on the outer surface of the grain shifting wheel, and a conveyor belt is fixedly installed on one side of the chain.

[0008] Preferably, a side panel is fixedly installed on the upper surface of the base, a T-shaped oblique groove and a T-shaped straight groove are opened on the inner wall of the side panel, the T-shaped oblique groove is adapted to the T-shaped oblique block, the T-shaped straight groove is adapted to the T-shaped straight block, a horizontal panel is fixedly installed on the inner wall of the side panel, and a vertical panel is fixedly installed on one side of the horizontal panel.

[0009] Preferably, a pad is fixedly mounted on the upper surface of the base, the upper surface of the pad is fixedly mounted to the lower surface of one group of gas rods, a guide rail is fixedly mounted on one side of the pad, and the guide rail is adapted to the roller.

[0010] Preferably, a rectangular inclined groove is opened on one side of the vertical plate, an inclined slide plate is slidably arranged inside the rectangular inclined groove, one end of the inclined slide plate is fixedly connected to the horizontal plate, and a limit plate is fixedly installed on the other end of the inclined slide plate, and the upper surface of the vertical plate is fixedly installed on the lower surface of the motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model proposes a grain dryer transmission chain tensioning mechanism. When grains need to be transported, the grains are dropped onto the surface of the conveyor belt through the discharge port of the upper device. The weight of the grains will press against the conveyor belt with the roller side. At this time, the gas rod will drop due to the weight of the grains, and the vertical plate on the lower surface of the motor will move along the inclined slide plate, thereby driving the grain wheel with the roller to move inside the casing, thereby gradually straightening the chain and the conveyor belt, achieving the effect of adjusting the chain tension according to the weight of the grains themselves. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic cross-sectional view of the base of the utility model;

[0015] Figure 3 It is a schematic diagram of a vertical plate of the utility model;

[0016] Figure 4 It is a cross-sectional schematic diagram of the conveying assembly of the utility model;

[0017] Figure 5 It is a cross-sectional schematic diagram of the conveyor belt of the present utility model.

[0018] In the figure: 1. base; 11. side plate; 12. T-shaped inclined groove; 13. horizontal plate; 14. vertical plate; 141. rectangular inclined groove; 142. inclined sliding plate; 143. limit plate; 15. pad; 16. guide rail; 17. T-shaped straight groove; 2. conveying assembly; 21. T-shaped inclined block; 22. connecting block; 23. driving rod; 231. bearing; 232. arc plate; 233. connecting plate; 24. grain wheel; 25. chain; 26. motor; 27. conveyor belt; 28. gas rod; 281. bottom plate; 282. fixed plate; 283. roller; 29. ​​T-shaped straight block. DETAILED DESCRIPTION

[0019] 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.

[0020] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0021] Combination Figure 1 A grain dryer transmission chain tensioning mechanism comprises a base 1, and a conveying component 2 is fixedly installed inside the base 1.

[0022] The utility model is further described below in conjunction with embodiments.

[0023] See also Figure 1-Figure 5 The conveying component 2 includes a motor 26 movably installed inside the base 1. The motor 26 is provided with two groups. Gas rods 28 are fixedly installed on the lower surfaces of the two groups of motors 26. A bottom plate 281 is fixedly installed on the lower surface of one group of gas rods 28. A fixed plate 282 is fixedly installed on the lower surface of the bottom plate 281. A roller 283 is fixedly installed on the fixed plate 282. A driving rod 23 is fixedly installed on the output end of the motor 26. A connecting block 22 is fixedly installed on one side of the driving rod 23. The connecting block 22 is fitted and connected to the inner wall of the base 1. A T-shaped oblique block 21 is fixedly installed on one side of one group of connecting blocks 22, and a T-shaped straight block 29 is fixedly installed on one side of the other group of connecting blocks 22. The bottom plate 281 allows the conveying component 2 to descend when it contacts the grain, allowing the roller 283 to move with the motor 26, so that the conveying component 2 is gradually tightened.

[0024] A bearing 231 is sleeved on the outer surface of the driving rod 23 , and an arc plate 232 is sleeved on the outer surface of the bearing 231 . A connecting plate 233 is fixedly installed on one side of the arc plate 232 , and the two groups of grain wheels 24 can be synchronously lowered through the connecting plate 233 .

[0025] A grain shifting wheel 24 is sleeved on the outer surface of the driving rod 23, and a chain 25 is sleeved on the outer surface of the grain shifting wheel 24. A conveyor belt 27 is fixedly installed on one side of the chain 25. The conveyor belt 27 can not only transport grains but also automatically adjust the tension of the conveyor belt 27 through the air rod 28 when the grains fall onto the surface of the conveyor belt 27.

[0026] A side panel 11 is fixedly mounted on the upper surface of the base 1, and a T-shaped oblique groove 12 and a T-shaped straight groove 17 are provided on the inner wall of the side panel 11. The T-shaped oblique groove 12 is matched with the T-shaped oblique block 21, and the T-shaped straight groove 17 is matched with the T-shaped straight block 29. A horizontal panel 13 is fixedly mounted on the inner wall of the side panel 11, and a vertical panel 14 is fixedly mounted on one side of the horizontal panel 13. The T-shaped straight groove 17 allows one group of grain wheels 24 to move up and down, and the T-shaped oblique groove 12 allows the other group of grain wheels 24 to move up and down and forward and backward at the same time.

[0027] A pad 15 is fixedly installed on the upper surface of the base 1, and the upper surface of the pad 15 is fixedly installed on the lower surface of one group of gas rods 28. A guide rail 16 is fixedly installed on one side of the pad 15, and the guide rail 16 is adapted to the roller 283. Through the fixed connection between the pad 15 and one group of gas rods 28, only one group of grain wheels 24 can be moved, thereby gradually tightening the grain wheels 24.

[0028] A rectangular inclined groove 141 is provided on one side of the vertical plate 14, and an inclined slide plate 142 is slidably arranged inside the rectangular inclined groove 141. One end of the inclined slide plate 142 is fixedly connected to the horizontal plate 13, and the other end of the inclined slide plate 142 is fixedly installed with a limit plate 143. The upper surface of the vertical plate 14 is fixedly installed with the lower surface of the motor 26. Through the rectangular inclined groove 141, the vertical plate 14 can move along the inclined slide plate 142 when the motor 26 descends.

[0029] Working principle: When it is necessary to transport grain, when the grain is dropped from the previous device onto the surface of the conveyor belt 27, the grain will be pressed down by the conveyor belt 27 with the roller 283 due to the force of the fall and its own force. Since the arc plate 232 on the outer surface of the driving rod 23 is in contact with the conveyor belt 27, when the grain falls onto the surface of the conveyor belt 27, the grain wheel 24 will feel the downward pressure and thus descend. While descending, since the connecting plate 233 is fixedly installed between the two sets of arc plates 232, the two sets of arc plates 232 will descend together, and the vertical plate 14 on the lower surface of the motor 26 will move along the inclined slide plate 142. The grain shifting wheel 24 with the roller 283 will move along the inclined slide plate 142 and the T-shaped inclined groove 12, so that the roller 283 can both descend and move, and the gas rod 28 fixedly installed on the surface of the pad 15 can only move up and down. As one group of grain shifting wheels 24 moves, the other group moves up and down together in the original position. The grain shifting wheels 24 in motion will straighten the conveyor belt 27, making the conveyor belt 27 in a taut state. As the amount of grain becomes less and less, the pressure received by the gas rod 28 also becomes less and less, and the grain shifting wheel 24 will gradually reset, thereby achieving the effect of adjusting the tension of the chain 25 according to the weight of the grain itself.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grain dryer transmission chain tensioning mechanism, comprising a base (1), characterized in that: A conveying assembly (2) is fixedly installed inside the base (1); The conveying assembly (2) comprises a motor (26) movably mounted inside the base (1), wherein the motor (26) is provided with two groups, and gas rods (28) are fixedly mounted on the lower surfaces of the two groups of motors (26), wherein a bottom plate (281) is fixedly mounted on the lower surface of one group of gas rods (28), a fixed plate (282) is fixedly mounted on the lower surface of the bottom plate (281), and a roller (283) is fixedly mounted on the fixed plate (282), and a driving rod (23) is fixedly mounted on the output end of the motor (26), and a connecting block (22) is fixedly mounted on one side of the driving rod (23), and the connecting block (22) is closely connected to the inner wall of the base (1), wherein a T-shaped inclined block (21) is fixedly mounted on one side of one group of connecting blocks (22), and a T-shaped straight block (29) is fixedly mounted on one side of the other group of connecting blocks (22).

2. The grain dryer transmission chain tensioning mechanism according to claim 1, characterized in that: The outer surface of the driving rod (23) is sleeved with a bearing (231), the outer surface of the bearing (231) is sleeved with an arc plate (232), and a connecting plate (233) is fixedly mounted on one side of the arc plate (232).

3. The grain dryer transmission chain tensioning mechanism according to claim 1, characterized in that: The outer surface of the driving rod (23) is sleeved with a grain shifting wheel (24), the outer surface of the grain shifting wheel (24) is sleeved with a chain (25), and a conveyor belt (27) is fixedly installed on one side of the chain (25).

4. The grain dryer transmission chain tensioning mechanism according to claim 1, characterized in that: A side plate (11) is fixedly mounted on the upper surface of the base (1); a T-shaped oblique groove (12) and a T-shaped straight groove (17) are provided on the inner wall of the side plate (11); the T-shaped oblique groove (12) is matched with the T-shaped oblique block (21); the T-shaped straight groove (17) is matched with the T-shaped straight block (29); a horizontal plate (13) is fixedly mounted on the inner wall of the side plate (11); and a vertical plate (14) is fixedly mounted on one side of the horizontal plate (13).

5. A grain dryer transmission chain tensioning mechanism according to claim 4, characterized in that: A pad (15) is fixedly mounted on the upper surface of the base (1), the upper surface of the pad (15) is fixedly mounted to the lower surface of one group of gas rods (28), a guide rail (16) is fixedly mounted on one side of the pad (15), and the guide rail (16) is adapted to the roller (283).

6. A grain dryer transmission chain tensioning mechanism according to claim 5, characterized in that: A rectangular oblique groove (141) is provided on one side of the vertical plate (14), an oblique slide plate (142) is slidably arranged inside the rectangular oblique groove (141), one end of the oblique slide plate (142) is fixedly connected to the horizontal plate (13), and a limit plate (143) is fixedly installed on the other end of the oblique slide plate (142), and the upper surface of the vertical plate (14) is fixedly installed on the lower surface of the motor (26).

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