Grain conveying device and harvester

Abstract

The utility model discloses a grain conveying device which comprises a conveying shell, a conveying chain harrow and a power mechanism of the conveying chain harrow are arranged in the conveying shell, and the conveying shell is divided into a lower shell body, a middle section and an upper shell body. Wherein the lower shell, the middle section and the upper shell are detachably connected. The conveying device adopts a three-section design, is easy to disassemble, and can quickly find out fault positions, so that the maintenance efficiency of the conveying device is improved. The utility model further provides a grain harvester comprising the grain conveying device.

Description

Technical Field

[0001] This utility model relates to a grain conveying device, specifically a grain conveying device and a harvester. Background Technology

[0002] With the mature development of automation technology, automated equipment has been widely used in various industries, and the degree of mechanization in crop harvesting is becoming increasingly higher. Currently, after crops mature, they are usually harvested using mechanical equipment that can complete the processes of harvesting, threshing, separating stems, and removing debris in one go. After threshing and washing, the threshed grains are lifted to the top by a conveyor system for easy collection.

[0003] Chinese patent document CN206350329U discloses a corn kernel recycling device, including a kernel collector disposed below a vibrating screen. The kernel collector is equipped with a kernel conveying mechanism. The output end of the kernel conveying mechanism is connected to a kernel elevator. A kernel collection box is disposed at the end of the kernel elevator away from the kernel conveying mechanism. The kernel elevator includes an elevator housing. An elevator roller is disposed at the upper end of the elevator housing, and an elevator drum is disposed at the lower end of the elevator housing. An elevator belt is fitted on the elevator roller and the elevator drum. Several buckets are arranged sequentially on the elevator belt.

[0004] In this existing technology, corn kernels are transported via buckets mounted on lifting rollers, preventing blockages caused by falling kernels and debris during transport. However, most existing conveying devices are integral units. For users, in actual operation, when the conveying device malfunctions, the entire unit must be disassembled for inspection and troubleshooting, making maintenance difficult. For manufacturers, the large size of the conveying device after purchase also presents challenges in transportation, making delivery a thorny issue. Utility Model Content

[0005] To address the technical problems of large size and difficult maintenance in existing conveying devices, this utility model provides a grain conveying device, including a transport shell, a conveying chain rake and a power mechanism for the conveying chain rake inside the transport shell, and the shell being divided into a lower shell, a middle section and an upper shell; wherein the lower shell, the middle section and the upper shell are detachably connected.

[0006] In existing technologies, the conveying device adopts an integral structure, which results in a large volume and difficulties in maintenance and transportation. This solution proposes a modular conveying device, consisting of an upper shell, a middle section, and a lower shell. These three parts are detachably connected for assembly. Therefore, when maintenance is required, only the corresponding part needs to be disassembled for repair. Furthermore, disassembling the conveying device into three parts facilitates transportation.

[0007] Preferably, the middle section has connecting parts at both ends. The connecting part at the lower end of the middle section is detachably connected to the lower housing, and the connecting part at the upper end of the middle section is detachably connected to the upper housing. In this design, the connecting parts are used to achieve connection between different parts, ensuring reliable connection and reducing the cost of the conveying device.

[0008] Preferably, the bottom of the lower housing has an opening, and a bottom housing with a closed opening is connected to the bottom of the lower housing. In this design, the opening and the bottom housing facilitate inspection and maintenance of the interior of the lower housing.

[0009] Preferably, the lower housing is provided with a switch assembly for fixing the bottom housing. The switch assembly includes a first connecting component disposed on the bottom housing and a second connecting component on the side wall of the lower housing that cooperates with the first connecting component. In this design, the switch assembly enables the bottom housing to securely seal the opening, preventing external impurities from entering the lower housing through the opening during operation and contaminating the grains inside. The structure is simple and can also reduce the cost of the conveying device.

[0010] Preferably, the bottom shell is provided with a connecting hole, the first connecting component is a U-shaped rod, and the second connecting component is a locking hook with a hook on the U-shaped rod. Locking elements are provided at both ends of the U-shaped rod passing through the connecting hole. In this design, the cooperation between the U-shaped rod and the locking hook achieves a stable closure of the opening by the bottom shell. When it is necessary to close the opening, the U-shaped rod is hung on the locking hook, and the locking elements are used to fix the U-shaped rod to the bottom shell, thereby achieving a stable closure of the opening by the bottom shell. The operation is simple.

[0011] Preferably, the four sides of the lower housing are detachably connected to the adjacent sides. In this design, the detachable connection of the four sides of the lower housing facilitates the inspection and maintenance of the interior of the lower housing, and the structure is simple.

[0012] Preferably, a partition is provided inside the lower housing, with both ends of the partition connected to the corresponding two sides. In this design, the partition can separate the material inside the lower housing, reducing the likelihood of blockages and ensuring normal material transport within the conveying device.

[0013] Preferably, the upper housing has a front housing on its side that communicates with the upper housing. The front housing has an openable seal, and the power mechanism is located inside the front housing. In this design, the seal on the front housing facilitates the maintenance of the power mechanism inside the front housing.

[0014] Preferably, the power mechanism includes a front sprocket that outputs power and a rear sprocket that is connected to the front sprocket via a chain. The rear sprocket drives the conveyor chain rake. In this design, the power transmission of the conveying device is achieved through the connection between the front sprocket, the rear sprocket, and the conveyor chain rake. The structure is simple and can reduce the cost of the conveying device.

[0015] Preferably, a tension sprocket is also provided on the front housing, and the rear sprocket forms a circuit with the front sprocket through the tension sprocket. In this solution, the tension sprocket enables the tensioning of the power between the rear sprocket and the front sprocket, has a simple structure, and can reduce the cost of the conveying device.

[0016] Preferably, a mounting assembly is provided on the side of the upper housing. The mounting assembly includes a mounting plate and a rotating shaft. The rotating shaft is located on the mounting plate, the rear sprocket is mounted on the rotating shaft, and the conveyor chain rake is connected to the rotating shaft. In this design, the mounting assembly facilitates the installation of the rear sprocket, has a simple structure, and can reduce the cost of the conveying device.

[0017] Preferably, the upper housing has a mounting portion on its side, and the mounting plate is slidably connected to the mounting portion. In this design, the slidable connection between the mounting plate and the mounting portion allows for adjustment of the mounting plate's height. Since the rotating shaft is mounted on the mounting plate, adjusting the height of the mounting plate will also change the height of the rotating shaft, thereby enabling adjustment of the conveyor chain rake tension. The operation is simple.

[0018] Preferably, the upper housing is equipped with a fixing assembly for the mounting plate. In this design, the fixing assembly can fix the position of the mounting plate after the height is adjusted, which is simple in structure and can reduce the cost of the conveying device.

[0019] Preferably, the fixing assembly includes a connecting rod and a fixing member. One end of the connecting rod passes through the mounting plate, and the fixing member is mounted on the connecting rod and located on both sides of the mounting plate. In this solution, the mounting plate is fixed in position by the cooperation of the connecting rod and the fixing member. The structure is simple and can reduce the cost of the conveying device.

[0020] Preferably, an observation hole is provided in the middle section, and the observation hole is covered with an observation hole cover. In this design, the observation cover plate facilitates the observation of whether the conveying device is blocked, so as to quickly troubleshoot the faults in the conveying device and improve the maintenance efficiency of the conveying device.

[0021] Secondly, this utility model also provides a grain harvester, including a washing device, a conveying device and a spraying device, wherein: the conveying device adopts the above-mentioned conveying device, the upper shell is connected to the spraying device through a spraying cylinder, and the lower shell is connected to the bottom of the washing device through a clamp.

[0022] Preferably, one end of the clamp connecting the cleaning device is provided with a receiving plate. In this design, the receiving plate improves the reliability of the connection between the conveying device and the cleaning device.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the conveying device adopts a three-section design, which is easy to disassemble and can quickly find the fault location, thereby improving the maintenance efficiency of the conveying device. Furthermore, the observation hole cover makes it easier to observe whether the conveying device is blocked, so as to detect and eliminate the fault in time.

[0025] 2. In this utility model, the conveying device can be disassembled into multiple parts, which makes transportation more convenient.

[0026] 3. In this utility model, the tension of the power mechanism can be adjusted to adapt to different working requirements. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the grain conveying device in the embodiments of the grain conveying device and harvester of this utility model;

[0028] Figure 2 for Figure 1 Schematic diagram of the middle and lower shell structure;

[0029] Figure 3 for Figure 1 Rear view;

[0030] Figure 4 This is a schematic diagram showing the lower housing connected to the clamp.

[0031] Figure 5 for Figure 1 Schematic diagram of the front and middle housing section;

[0032] Figure 6 for Figure 5 The right view;

[0033] Figure 7 for Figure 5 A schematic diagram of the rear side. Detailed Implementation

[0034] The following detailed description illustrates the specific implementation method:

[0035] 1. Definition

[0036] Conveyor chain rake: A new type of conveying equipment whose main function is to move materials from one place to another. It can be used to transport timber, building materials, etc. The conveyor chain rake consists of multiple similar-looking interlocking links with a flexible chain that can pull up materials for easy handling.

[0037] 2. The reference numerals in the accompanying drawings of the instruction manual include: upper shell 1, front shell 2, middle section 3, lower shell 4, clamp 5, spraying cylinder 6, observation hole cover 7, rear sealing plate 8, right baffle 9, left baffle 10, front sealing plate 11, bottom shell 12, first connecting assembly 13, second connecting assembly 14, partition 15, receiving plate 16, front sprocket 17, tensioning sprocket 18, rear sprocket 19, rotating shaft 20, fixing plate 21, connecting rod 22, mounting plate 23.

[0038] The basic implementation examples are as follows: Figures 1-7 The image shows a grain conveying device, comprising a conveying shell containing a conveying chain rake and a power mechanism for the conveying chain rake. The shell is divided into a lower shell 4, a middle section 3, an upper shell 1, and a front shell 2. The lower shell 4 and the middle section 3 are detachably connected to the upper shell 1. The middle section 3 has connecting parts at both ends; the connecting part at the lower end of the middle section 3 is detachably connected to the lower shell 4, and the connecting part at the upper end of the middle section 3 is detachably connected to the upper shell 1. The middle section 3 has an observation hole with an observation hole cover 7. The lower shell 4 is connected to the middle section 3 using ten sets of M8 flange nuts and M8×20 flange bolts, and the upper shell 1 is connected to the middle section 3 using ten sets of M8 flange nuts and M8×20 flange bolts. The observation hole cover 7 is installed on the middle section 3 using two sets of M8 flange nuts and M8×20 flange bolts.

[0039] like Figure 2 , Figure 3 and Figure 4 As shown, the lower housing 4 includes four detachably connected sides: a left baffle 10, a right baffle 9, a front sealing plate 11, and a rear sealing plate 8. The right baffle 9 is connected to the front sealing plate 11 and the rear sealing plate 8 using three sets of M8×20 flange bolts and M8 flange nuts. The left baffle 10 is then welded to the front sealing plate 11 and connected to the rear sealing plate 8 using three sets of M8×20 flange bolts and M8 flange nuts. A partition 15 is provided inside the lower housing 4. Both ends of the partition 15 are connected to the right baffle 9 and the left baffle 10 using four sets of M10×20 flange bolts and M10 flange nuts.

[0040] The bottom of the lower housing 4 has an opening, and a bottom housing 12 that closes the opening is connected to the bottom of the lower housing 4. A switch assembly for fixing the bottom housing 12 is provided on the lower housing 4. The switch assembly includes a first connecting component 13 provided on the bottom housing 12 and a second connecting component 14 on the side wall of the lower housing 4 that cooperates with the first connecting component 13. Specifically, the bottom housing 12 has a connecting hole, the first connecting component 13 is a U-shaped rod, and the second connecting component 14 is a locking hook with a hook on the U-shaped rod. Locking elements are provided at both ends of the U-shaped rod that pass through the connecting hole. In this embodiment, the rear end of the bottom housing 12 is connected to the rear sealing plate 8 with bolts M8×265 and nuts M8, and the front end of the bottom housing 12 is connected to the front sealing plate 11 with a U-shaped rod and a hexagonal nut. The U-shaped rod is hung on the locking hook, and the locking hook is installed on the front sealing plate 11 with a B-shaped pin, a pin shaft M8×28, a flat washer M8, and a cotter pin 2.5×32.

[0041] like Figure 1 , Figure 5 and Figure 6 As shown, a front housing 2, which communicates with the upper housing 1, is located on the side of the upper housing 1. The upper housing 1 is connected to the front housing 2 by six sets of flange bolts M8×20 and flange nuts M8. The front housing 2 has an openable seal, and the power mechanism is located inside the front housing 2. The power mechanism includes a front bearing, a rear bearing, a front sprocket 17, a rear sprocket 19, and a tension sprocket 18. The rear sprocket 19 forms a circuit with the front sprocket 17 through the tension sprocket 18, and drives the conveyor chain rake to move. The front bearing is fixed to the front housing 2 by three sets of small semi-circular head low square neck bolts M10×25, hexagonal nuts M10, spring washers M10, and flat washers M10. The rear bearing is fixed to the upper housing 1 by three sets of small semi-circular head low square neck bolts M10×25, hexagonal nuts M10, spring washers M10, and flat washers M10.

[0042] The upper housing 1 has a mounting assembly on its side, which includes a mounting plate 23 and a rotating shaft 20. The rotating shaft 20 is located on the mounting plate 23, and the rear sprocket 19 is mounted on the rotating shaft 20. The conveyor chain rake is connected to the rotating shaft 20. The upper housing 1 also has a mounting part and a fixing assembly for the mounting plate 23 on its side, with the mounting plate 23 slidably connected to the mounting part. Specifically, the fixing assembly includes a connecting rod 22 and a fixing member. One end of the connecting rod 22 is mounted on the upper housing 1, and the other end of the connecting rod 22 passes through the mounting plate 23. The fixing member is located on the connecting rod 22 and on both sides of the mounting plate 23. In this embodiment, the connecting rod 22 uses an M10×110 bolt, and the fixing member uses an M10 nut. The upper housing 1 has a fixing plate 21, and the connecting rod 22 is mounted on the fixing plate 21.

[0043] This embodiment also discloses a grain harvester, including a washing device, a conveying device, and a spraying device. The conveying device is the aforementioned conveying device. The upper housing 1 is connected to the spraying device via a spraying cylinder 6, and the lower housing 4 is connected to the bottom of the washing device via a clamp 5. Specifically, one end of the clamp 5 connected to the washing device is provided with a receiving plate 16. The receiving plate 16 is fixed to the bottom housing 12 below the cleaning device with four sets of flange bolts M10×20. The lower housing 4 and the receiving plate 16 are connected together with four sets of flange bolts M8×25 and flange nuts M8.

[0044] The specific implementation process is as follows: Before using the conveying device in this embodiment, the lower housing 4, middle section 3, upper housing 1, and front housing 2 need to be assembled first, and then the two ends of the conveying device are connected to the cleaning device and the spraying device respectively. During use, the conveying device can be observed for blockages through the detachable observation cover.

[0045] When it is necessary to adjust the tension of the conveyor chain rake, the fixing parts on both sides of the mounting plate 23 on the connecting rod 22 are screwed on. The fixing parts move up and down along the connecting rod 22, and the mounting plate 23 can also move up and down. After the mounting plate 23 moves, it drives the rotating shaft 20 on the mounting plate 23 to move, thereby adjusting the tension of the conveyor chain rake.

[0046] When it is necessary to open the opening at the bottom of the lower housing 4, the hexagonal nuts on both ends of the U-shaped rod are unscrewed from the U-shaped rod, and the bottom housing 12 can be dislodged from the U-shaped rod, thereby opening the opening.

[0047] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A grain conveying device, comprising a conveying housing, wherein a conveying chain rake and a power mechanism for the conveying chain rake are disposed within the conveying housing, and the housing is divided into a lower housing, a middle section, and an upper housing; characterized in that: The lower housing, the middle section, and the upper housing are detachably connected.

2. The grain conveying device according to claim 1, characterized in that: The middle section has connecting parts at both ends. The connecting part at the lower end of the middle section is detachably connected to the lower housing, and the connecting part at the upper end of the middle section is detachably connected to the upper housing.

3. The grain conveying device according to claim 1 or 2, characterized in that: The bottom of the lower housing has an opening, and the bottom of the lower housing is connected to a bottom shell that closes the opening.

4. The grain conveying device according to claim 3, characterized in that: The lower housing is provided with a switch assembly for fixing the bottom housing. The switch assembly includes a first connecting component disposed on the bottom housing and a second connecting component on the side wall of the lower housing that cooperates with the first connecting component.

5. The grain conveying device according to claim 4, characterized in that: The bottom shell is provided with a connection hole. The first connection component is a U-shaped rod, and the second connection component is a locking hook with a hook to attach to the U-shaped rod. Locking elements are provided at both ends of the U-shaped rod that pass through the connection hole.

6. The grain conveying device according to claim 5, characterized in that: The four sides of the lower housing are detachably connected to the adjacent sides.

7. The grain conveying device according to claim 6, characterized in that: The lower housing is provided with a partition, and the two ends of the partition are connected to the two corresponding sides.

8. The grain conveying device according to claim 1, characterized in that: The upper housing has a front housing on its side that communicates with the upper housing. The front housing has an openable slit, and the power mechanism is located inside the front housing.

9. The grain conveying device according to claim 8, characterized in that: The power mechanism includes a front sprocket that outputs power and a rear sprocket that is connected to the front sprocket via a chain. The rear sprocket drives the conveyor chain rake to move.

10. The grain conveying device according to claim 9, characterized in that: The front housing is also provided with a tension sprocket, and the rear sprocket forms a circuit with the front sprocket through the tension sprocket.

11. The grain conveying device according to claim 10, characterized in that: The upper housing is provided with a mounting assembly on its side. The mounting assembly includes a mounting plate and a rotating shaft. The rotating shaft is located on the mounting plate. The rear sprocket is mounted on the rotating shaft. The conveyor chain rake is connected to the rotating shaft.

12. The grain conveying device according to claim 11, characterized in that: The upper housing has a mounting portion on its side, and the mounting plate is slidably connected to the mounting portion.

13. The grain conveying device according to claim 12, characterized in that: The upper housing is provided with a fixing assembly for the mounting plate.

14. The grain conveying device according to claim 13, characterized in that: The fixing assembly includes a connecting rod and a fixing member. One end of the connecting rod passes through the mounting plate, and the fixing member is disposed on the connecting rod and located on both sides of the mounting plate.

15. The grain conveying device according to claim 1, characterized in that: An observation hole is provided on the middle section, and the observation hole is covered with an observation hole cover.

16. A grain harvester, comprising a washing device, a conveying device, and a spreading device, characterized in that: The conveying device is the conveying device as described in any one of claims 1-15, the upper housing is connected to the spraying device via a spraying cylinder, and the lower housing is connected to the bottom of the cleaning device via a clamp.

17. The grain harvester according to claim 16, characterized in that: The end of the clamp that connects to the cleaning device is provided with a receiving plate.

Images