Multi-layer tobacco leaf collecting device and method based on self-propelled harvester

Abstract

The invention relates to the technical field of crop machinery, in particular to a multilayer tobacco leaf collecting device and method based on a self-propelled harvester, comprising a self-propelled harvester body on which a frame is loaded, and two collecting mechanisms respectively arranged on two sides of the frame, each collecting mechanism comprising: a driving steering mechanism comprising a driving shaft and a plurality of steering shafts; two outer side lifting chains and two inner side lifting chains; the at least two rollable trays are sequentially arranged from top to bottom at the beginning and are in an edge-on state, the outer side lifting chain and the inner side lifting chain are driven to move by driving the steering mechanism, and meanwhile, the rollable trays in the edge-on state are sequentially adjusted to be in a horizontal state; the multi-layer rollable trays used for stacking and collecting the tobacco leaves are arranged, the storage and transportation amount of the tobacco leaves is increased, the situation that the tobacco leaves are unloaded midway is avoided, and the harvesting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crop machinery, and in particular to a multi-layer tobacco leaf collection device and method based on a self-propelled harvester. Background Art

[0002] Tobacco leaf harvesting is one of the most labor-intensive and worst-working environment links in the early stage of tobacco leaf production. Industrial workers need to endure high temperature and high humidity conditions under the scorching sun, pick tobacco leaves one by one, carry them to the field edge, and then load them onto a transport vehicle to be uniformly sent to a nearby baking workshop for centralized baking. At present, tobacco leaf harvesting is basically manual. Although there are research and development achievements of tobacco leaf harvesters, the models are not mature. On the one hand, the harvesting effect is not good, and phenomena such as breakage, missed picking, and missed collection are serious, making it difficult to meet the harvesting requirements. On the other hand, the current tobacco leaf harvesters are costly and prone to damage, and have not been widely used. Therefore, mechanical harvesting has become a major problem faced by the tobacco leaf industry.

[0003] The inventor found that the self-propelled harvester cooperating with manual picking greatly reduces the labor intensity in the field. However, for long plot tobacco fields, due to the problem of small capacity of the existing harvester collection device, the picked tobacco leaves need to be unloaded midway, and then transported to the field edge by manpower or other transport machinery. This picking method also has the problem of high labor intensity. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a multi-layer tobacco leaf collection device and method based on a self-propelled harvester. By providing multiple layers of rollable trays for stacking harvested tobacco leaves, the storage and transportation capacity of tobacco leaves is increased, the unloading of tobacco midway is avoided, and the harvesting efficiency is improved. To achieve the above purpose, the present invention is realized through the following technical solutions:

[0005] In the first aspect, the present invention provides a multi-layer tobacco leaf collection device based on a self-propelled harvester, including a self-propelled harvester body on which a frame is mounted: It also includes two collection mechanisms respectively arranged on both sides of the frame. The collection mechanism includes:

[0006] A driving and steering mechanism, including a driving shaft and several steering shafts;

[0007] Two outer lifting chains respectively wound around both ends of the driving shaft and several of the steering shafts;

[0008] Two inner lifting chains respectively wound around the driving shaft and several of the steering shafts and arranged inside the outer lifting chains;

[0009] At least two rollable trays, with a first connecting rod and a second connecting rod respectively arranged on two opposite sides of each rollable tray. Two ends of the first connecting rod are respectively connected to two inner lifting chains, and two ends of the second connecting rod are respectively connected to two outer lifting chains. Initially, the rollable trays are arranged in sequence from top to bottom and in a standing state. The driving and steering mechanism drives the outer lifting chains and the inner lifting chains to move, and simultaneously adjusts the rollable trays in the standing state to a horizontal state in sequence.

[0010] As a further implementation manner, several of the steering shafts include a first steering shaft, a second steering shaft, a third steering shaft, and a steering half shaft. The outer lifting chain is sequentially wound around the driving shaft, the first steering shaft, the second steering shaft, and the steering half shaft, and the inner lifting chain is sequentially wound around the driving shaft, the first steering shaft, the second steering shaft, and the third steering shaft.

[0011] As a further implementation manner, the outer lifting chain is in a vertical state between the driving shaft and the first steering shaft, and is turned by the first steering shaft and the second steering shaft to be in a vertical state between the second steering shaft and the steering half shaft.

[0012] As a further implementation manner, the inner lifting chain is in a vertical state between the driving shaft and the first steering shaft, and is turned by the first steering shaft, the second steering shaft, and the third steering shaft to be in a vertical state between the third steering shaft and the driving shaft.

[0013] As a further implementation manner, sprockets that cooperate with the outer lifting chain and the inner lifting chain are provided on the driving shaft, the first steering shaft, the second steering shaft, the third steering shaft, and the steering half shaft.

[0014] As a further implementation manner, the length of the first connecting rod is less than that of the second connecting rod; a first connecting plate is provided at the end of the first connecting rod and is connected to the inner lifting chain; a second connecting plate is provided at the end of the second connecting rod and is connected to the outer lifting chain.

[0015] As a further implementation manner, the rollable tray is formed by connecting several connecting rods through chains.

[0016] As a further implementation manner, the number of the rollable trays is three.

[0017] As a further implementation manner, the intervals between any two adjacent rollable trays are the same.

[0018] Second aspect, the present invention provides a working method of the multi-layer tobacco leaf collecting device based on a self-propelled harvester according to the first aspect, including the following steps:

[0019] Initially, the rollable trays are arranged vertically from top to bottom. Among them, the lowermost rollable tray is driven by the driving and steering mechanism to be turned into the first layer in the horizontal state. The tobacco farmer stacks the collected tobacco leaves on the first-layer rollable tray. After it is full, the driving and steering mechanism drives the subsequent rollable trays to be turned into the second layer in the horizontal state. At this time, the first-layer rollable tray is lifted synchronously, and the tobacco farmer continues to stack the collected tobacco leaves on the second-layer rollable tray, and so on until all the rollable trays are full.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention is provided with rollable trays for stacking the collected tobacco leaves, and multiple layers are arranged on both sides of the frame. The number of layers can be set as required, which increases the storage and transportation capacity of the harvested tobacco leaves, avoids unloading the tobacco midway, and improves the harvesting efficiency.

[0022] 2. The present invention sets up a driving and steering mechanism composed of a driving shaft and several steering shafts, designs the layout of the positions of the driving shaft and several steering shafts, and under the drive of the inner lifting chain and the outer lifting chain wound around the driving shaft and several steering shafts, the rollable tray in the vertical state on one side can be turned into the horizontal state on the other side. When a layer of horizontal rollable tray is full and after being lifted, the next layer of rollable tray also turns from the vertical state to the horizontal state, and can also be used to place tobacco leaves, ensuring that the tobacco farmer always places the collected tobacco leaves at the optimal height.

[0023] 3. The tray for storing the collected tobacco leaves in the present invention is rollable, ensuring that it can smoothly pass through the steering shaft by curling when turning from the vertical state to the horizontal state; and the rollable tray is composed of connecting rods, has a large load-bearing capacity, can carry more tobacco leaves, and can also improve the storage and transportation capacity of the tobacco leaves. Description of the Drawings

[0024] The specification drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0025] Figure 1 It is a schematic structural diagram of the multi-layer tobacco leaf collecting device based on a self-propelled harvester in an embodiment of the present invention.

[0026] Figure 2 It is an axonometric schematic diagram of the lifting movement of the multi-layer collecting device in an embodiment of the present invention.

[0027] Figure 3It is a side view schematic diagram of the lifting movement of the multi-layer collection device in the embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the rollable bracket structure in the embodiment of the present invention.

[0029] In the figure: The distances or sizes between each part are exaggerated for showing the positions of each part, and the schematic diagram is only for illustration.

[0030] Among them: 1. Frame; 2. Outer lifting chain; 3. Inner lifting chain; 4. Rollable tray; 41. First connecting plate; 42. Second connecting plate; 43. Chain with double wings; 44. First connecting rod; 45. Third connecting rod; 46. Spacer block; 47. Second connecting rod; 5. Driving shaft; 6. First steering shaft; 7. Second steering shaft; 8. Steering half shaft; 9. Third steering shaft. Detailed implementation mode

[0031] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanations of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0032] Embodiment 1

[0033] In a typical implementation mode of the present invention, referring to Figure 1 as shown, a multi-layer tobacco leaf collection device based on a self-propelled harvester includes a self-propelled harvester body on which a frame 1 is mounted: It also includes two collection mechanisms, which are symmetrically arranged on both sides of the frame 1 respectively. Each collection mechanism includes a driving and steering mechanism, two outer lifting chains 2, two inner lifting chains 3 and at least two rollable trays 4.

[0034] The driving and steering mechanism includes a driving shaft 5 and several steering shafts, all of which are installed on the frame 1. Among them, the driving shaft 5 is configured with a drive, which serves as the power structure of the entire driving and steering mechanism and can be manually controlled to pause at any time. Driven by the driving shaft 5, the steering shafts that cooperate with it through chains rotate synchronously.

[0035] As Figure 1 and Figure 3 shown, several steering shafts include a first steering shaft 6, a second steering shaft 7, a third steering shaft 9 and a steering half shaft 8, all of which are installed on the frame 1.

[0036] It should be noted here that the side close to the inside of the vehicle body is the inner side, and the side close to the outside is the outer side.

[0037] The drive shaft 5 is located at the upper inner side, the first steering shaft 6 is located at the lower inner side, the second steering shaft 7 is located at the lower outer side, the steering half shaft 8 is located at the upper outer side, and the third steering shaft 9 is located at the lower inner side but at a position higher than the second steering shaft 7 and the first steering shaft 6, and is arranged outward relative to the drive shaft 5 and the first steering shaft 6. The drive shaft 5 and the first steering shaft 6 are arranged vertically up and down. As Figure 3 shown, the first steering shaft 6 is directly below the drive shaft 5. The second steering shaft 7 and the steering half shaft 8 are arranged vertically up and down, and the second steering shaft 7 is directly below the steering half shaft 8. The height of the second steering shaft 7 is between the third steering shaft 9 and the first steering shaft 6.

[0038] The outer lifting chain 2 is successively wound around the drive shaft 5, the first steering shaft 6, the second steering shaft 7 and the steering half shaft 8, and the inner lifting chain 3 is successively wound around the drive shaft 5, the first steering shaft 6, the second steering shaft 7 and the third steering shaft 9. The planes where the outer lifting chain 2 and the inner lifting chain 3 are located are arranged parallel to each other.

[0039] Sprockets for cooperating with the outer lifting chain 2 and the inner lifting chain 3 are provided on the drive shaft 5, the first steering shaft 6, the second steering shaft 7, the third steering shaft 9 and the steering half shaft 8. Therefore, two sprockets are correspondingly provided at each end of the drive shaft 5, the first steering shaft 6 and the second steering shaft 7, one sprocket is provided at the end of the third steering shaft 9, and one sprocket is provided on the steering half shaft 8. The cooperation relationship is as Figure 2 and Figure 3 shown.

[0040] As Figure 2 and Figure 3 shown, the two outer lifting chains 2 are respectively wound around both ends of the drive shaft 5 and several steering shafts, and the approximate shape of the outer lifting chain 2 after winding is rectangular.

[0041] The part of the outer lifting chain 2 wound between the drive shaft 5 and the first steering shaft 6 is in a vertical state, and is turned by the first steering shaft 6 and the second steering shaft 7 to make it in a vertical state between the second steering shaft 7 and the steering half shaft 8.

[0042] The two inner lifting chains 3 are respectively wound around the drive shaft 5 and several steering shafts and are arranged inside the outer lifting chain 2; the part of the inner lifting chain 3 wound between the drive shaft 5 and the first steering shaft 6 is in a vertical state, and is turned by the first steering shaft 6, the second steering shaft 7 and the third steering shaft 9 to make it in a vertical state between the third steering shaft 9 and the drive shaft 5, as Figure 3 shown. The shape of the inner lifting chain 3 after winding is in an L shape.

[0043] In this embodiment, a drive and steering mechanism composed of a drive shaft 5 and several steering shafts is provided. The layout of the drive shaft 5 and several steering shafts is designed. Driven by the inner lifting chain 3 and the outer lifting chain 2 wound around the drive shaft 5 and several steering shafts, the rollable tray 4 in a side-standing state on one side can be turned over to a horizontal state on the other side. When a layer of horizontal rollable trays 4 is full and lifted, the rollable trays 4 on the next layer are also turned from the side-standing state to the horizontal state. It can also be used to place tobacco leaves to ensure that tobacco farmers always place the harvested tobacco leaves at the optimal height.

[0044] The multi-layer tobacco leaf collection device based on the self-propelled harvester includes at least two rollable trays 4. In this embodiment, the number of rollable trays 4 is set to three.

[0045] As Figure 4 shown, on the relative two sides in the length direction of each rollable tray 4, a first connecting rod 44 and a second connecting rod 47 are respectively provided. The two ends of the first connecting rod 44 are respectively connected to two inner lifting chains 3, and the two ends of the second connecting rod 47 are respectively connected to two outer lifting chains 2. Initially, the rollable trays 4 are arranged from top to bottom and are in a side-standing state. By driving the steering mechanism to drive the outer lifting chain 2 and the inner lifting chain 3 to move, the rollable trays 4 in the side-standing state are sequentially adjusted to the horizontal state.

[0046] This embodiment is provided with rollable trays 4 for stacking the harvested tobacco leaves, and multiple layers are arranged on both sides of the frame. The number of layers can be set as needed, increasing the storage and transportation capacity of the tobacco leaves, avoiding unloading the tobacco midway, and improving the harvesting efficiency.

[0047] Since the two ends of the first connecting rod 44 are respectively connected to two inner lifting chains 3, and the two ends of the second connecting rod 47 are respectively connected to two outer lifting chains 2, the length of the first connecting rod 44 is less than the length of the second connecting rod 47. A second connecting plate 42 is provided at the end of the first connecting rod 44, and the first connecting rod 44 is connected to the inner lifting chain 3 through the second connecting plate 42. A first connecting plate 41 is provided at the end of the second connecting rod 47, and the end of the second connecting rod 47 is connected to the outer lifting chain 2 through the first connecting plate 41. It can be understood that the connecting plates at both ends of the first connecting rod 44 and the second connecting rod 47 are fixedly connected to the inner side surfaces of the corresponding inner and outer chains.

[0048] The rollable tray 4 is formed by connecting several third connecting rods 45 through a chain. Specifically, this chain is a double-winged chain 43. The two ends of the third connecting rod 45 are fixedly connected to the double-winged chain 43 through a cushion block 46. The cushion block is a cubic structure, which can make the rollable tray 4 maintain a planar structure and will not be bent by the weight of the tobacco leaves.

[0049] In this embodiment, the first connecting rod 44, the second connecting rod 47, and the third connecting rod 45 are all square connecting rods. The one-sided surface of the rollable tray 4 can be rolled up, and the back surface can maintain a flat structure after being flattened.

[0050] In this embodiment, the intervals between any two adjacent rollable trays 4 are the same.

[0051] In this embodiment, the tray for storing the collected tobacco leaves can be rolled up, ensuring that it can smoothly pass through the steering shaft by rolling when it is turned from the side-standing state to the horizontal state; and the rollable tray is composed of connecting rods, has a large load-bearing capacity, can carry more tobacco leaves, and can also improve the storage and transportation volume of tobacco leaves.

[0052] Embodiment Two

[0053] This embodiment provides a working method of the multi-layer tobacco leaf collection device based on the self-propelled harvester according to Embodiment One, including the following steps:

[0054] Initially, the rollable trays 4 are arranged in a side-standing state from top to bottom. Among them, the lowermost rollable tray 4 is turned into the first layer in the horizontal state driven by the driving steering mechanism. The tobacco farmer stacks the collected tobacco leaves on the first-layer rollable tray 4. After it is full, the driving steering mechanism drives the subsequent rollable trays 4 to turn into the second layer in the horizontal state. At this time, the first-layer rollable tray 4 is lifted synchronously, and the tobacco farmer continues to stack the collected tobacco leaves on the second-layer rollable tray 4, and so on until all the rollable trays 4 are full.

[0055] Specifically, as Figure 3 shown, at the initial stage of harvesting tobacco leaves, the four corners of the rollable tray 4 are installed on the inner and outer driving chains and are in a side-standing state. When the driving main shaft 5 is driven, the sprocket assembled on the main shaft 5 drives the outer lifting chain 2 ( Figure 3 marked B in Figure 3 ), the inner lifting chain 3 (

[0056] marked A in Figure 3 ) to move downward from top to bottom. After the outer lifting chain 2 undergoes a 90° - 90° turn, it moves upward from bottom to top; after the inner chain undergoes a 90° - 180° - 90° turn accordingly, the heights of the four corners of the rollable tray 4 are just horizontal, and the power is cut off to stop the chain drive. At this time, the picked tobacco leaves are wrapped and placed on the rollable tray 4. After the tray is full, the power is turned on again, the chain is driven to rotate, the first-layer rollable tray 4 is lifted, and then the second-layer rollable tray 4 reaches the horizontal state after bypassing the steering wheel, and the subsequent harvested tobacco bales are continuously collected and stacked. Rise the second layer, the third layer... in the above process in turn, so as to achieve the purpose of collecting tobacco leaves with a large transportation volume at one time.The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-layer tobacco leaf collecting device based on a self-propelled harvester, characterized in that: The invention comprises a self-propelled harvester body, on which a frame is mounted; and two collecting mechanisms are respectively arranged on both sides of the frame, wherein the collecting mechanisms comprise: A driving steering mechanism, including a driving shaft and a plurality of steering shafts; Two outer lifting chains are respectively wound around the driving shaft and two ends of the plurality of steering shafts; Two inner lifting chains are respectively wound around the driving shaft and the plurality of steering shafts and are arranged inside the outer lifting chains; At least two rollable pallets are provided with a first connecting rod and a second connecting rod on two opposite sides of each rollable pallet, the two ends of the first connecting rod are respectively connected to the two inner lifting chains, and the two ends of the second connecting rod are respectively connected to the two outer lifting chains; initially, the rollable pallets are arranged from top to bottom in sequence and are in a sideways state, and the outer lifting chain and the inner lifting chain are driven to move by the driving steering mechanism, and the rollable pallets in the sideways state are adjusted to a horizontal state in sequence.

2. A multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 1, characterized in that: The plurality of steering shafts include a first steering shaft, a second steering shaft, a third steering shaft and a steering half shaft. The outer lifting chain is sequentially wound around the driving shaft, the first steering shaft, the second steering shaft and the steering half shaft, and the inner lifting chain is sequentially wound around the driving shaft, the first steering shaft, the second steering shaft and the third steering shaft.

3. The multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 2, characterized in that: The outer lifting chain is wound between the driving shaft and the first steering shaft in a vertical state, and is turned by the first steering shaft and the second steering shaft to be in a vertical state between the second steering shaft and the steering half shaft.

4. The multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 3, characterized in that: The inner lifting chain is wound between the driving shaft and the first steering shaft in a vertical state, and is turned by the first steering shaft, the second steering shaft and the third steering shaft to be in a vertical state between the third steering shaft and the driving shaft.

5. The multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 2, characterized in that: The driving shaft, the first steering shaft, the second steering shaft, the third steering shaft and the steering half shaft are all provided with sprockets that cooperate with the outer lifting chain and the inner lifting chain.

6. The multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 1, characterized in that: The length of the first connecting rod is smaller than that of the second connecting rod; a first connecting plate is provided at the end of the first connecting rod and is connected to the inner lifting chain; a second connecting plate is provided at the end of the second connecting rod and is connected to the outer lifting chain.

7. The multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 1, characterized in that: The rollable tray is formed by connecting a plurality of connecting rods via a chain.

8. The multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 1, characterized in that: The number of the rollable trays is three.

9. The multi-layer tobacco leaf collecting device based on a self-propelled harvester according to claim 8, characterized in that: The interval between any two adjacent rollable trays is the same.

10. The working method of the multi-layer tobacco leaf collecting device based on the self-propelled harvester according to any one of claims 1 to 9, characterized in that: The following steps are involved: Initially, the rollable trays are all arranged sideways from top to bottom, and the rollable tray on the bottom layer is turned over to the first layer in a horizontal state under the drive of the steering mechanism. The tobacco farmers stack the collected tobacco leaves on the first layer of rollable trays. After the first layer of rollable trays is full, the steering mechanism is driven to drive the subsequent rollable trays to turn over to the second layer in a horizontal state. At this time, the first layer of rollable trays is lifted synchronously, and the tobacco farmers continue to stack the collected tobacco leaves on the second layer of rollable trays, and so on until all the rollable trays are full.

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