Sunflower harvester threshing and sunflower disc throwing integrated structure

Abstract

The utility model discloses a sunflower harvester threshing and sunflower disc throwing integrated structure which comprises a transmission bin, a transmission mechanism used for transmission and sunflower disc threshing is arranged in the transmission bin, the transmission mechanism comprises transmission shafts, a transmission roller and a separation sieve bottom, a plurality of transmission shafts are movably arranged in the transmission bin through bearings, and the transmission shafts are connected with the transmission roller through bearings. A conveying roller is fixedly arranged on the outer side surface of the transmission shaft, a separating screen bottom is fixedly arranged at the position, at the lower end of the conveying roller, in the conveying bin, and the separating screen bottom is arranged in an arc shape so as to be attached to the rotating path of the conveying roller. The sunflower disc threshing and conveying device is good in using effect, threshing and conveying of sunflower discs are integrated, the size of the device can be greatly reduced, the device can be perfectly arranged at the lower end of a cab of a harvester, a conveying structure does not need to be arranged on the side face of the harvester, the visual field of backward observation of a driver can be improved, and the trafficability of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of sunflower harvester technology, specifically to an integrated structure for threshing and sunflower tray throwing in a sunflower harvester. Background Technology

[0002] Sunflower is an important economic crop in my country, playing a vital role in the country's food security strategy. To meet my country's demand for sunflowers, mechanized harvesting has become an inevitable trend.

[0003] Currently, sunflower harvesting machinery in my country is broadly divided into two types: one is machinery that directly harvests the sunflower heads, and the other is machinery that harvests the heads and then threshes them to obtain sunflower cakes and seeds. The second type of machinery generally includes a vehicle body, a header mechanism, a conveying mechanism, a threshing mechanism, a cleaning mechanism, a sunflower cake collection box, and a seed collection box. Its harvesting principle is as follows: sunflower heads are pre-cut from the sunflower stalks in the field and inserted upwards onto the stalks to allow the seeds to dry. After the seeds are dry, the harvester enters the field, the header mechanism removes the dried sunflower heads from the stalks, and then the heads enter the conveying mechanism and are fed into the threshing mechanism for threshing. Finally, the threshed seeds and sunflower cakes are sent to the seed collection box and sunflower cake collection box respectively, and periodically emptied for collection.

[0004] However, existing sunflower harvesters of this type have complex structures and require additional threshing and conveying structures, which makes the overall device wider. For example, in Chinese patent application number 201610746681.5, the threshed sunflower discs are sent to the sunflower disc hopper via a conveying mechanism located on the side of the vehicle body. The problem is that the increased width of the vehicle body leads to poor driver visibility and poor maneuverability. Therefore, an improved sunflower harvester with an integrated threshing and sunflower disc throwing structure is needed to address this issue. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated structure for threshing and sunflower tray throwing in a sunflower harvester, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sunflower harvester with an integrated structure for threshing and sunflower disc throwing, including a transmission chamber. The transmission chamber is equipped with a transmission mechanism for transmission and threshing of the sunflower discs. The transmission mechanism includes a drive shaft, a transmission roller, and a separating screen. Several drive shafts are movably arranged inside the transmission chamber via bearings. A transmission roller is fixedly arranged on the outer surface of the drive shaft. A separating screen is fixedly arranged at the lower end of the transmission roller inside the transmission chamber. The separating screen is arc-shaped to conform to the rotation path of the transmission roller. A transmission mechanism for driving the multiple transmission rollers to rotate is provided on the outside of the transmission chamber.

[0007] Preferably, the transmission mechanism includes a sprocket, a transmission chain, a drive shaft, a first pulley, a second pulley, and a transmission belt. A sprocket is fixedly mounted at one end of the transmission shaft, and a transmission chain is sleeved between the sprockets. A drive shaft is movably mounted on one side of the upper end of the transmission chamber via a rotating shaft. A first pulley is fixedly mounted on the outer side of the drive shaft, and a second pulley is fixedly mounted on the upper surface of the transmission shaft. A transmission belt is sleeved between the first pulley and the second pulley. The transmission mechanism can simultaneously drive multiple transmission shafts to rotate, thereby causing the three transmission rollers to rotate simultaneously to perform the transmission of the sunflower discs.

[0008] Preferably, the surface of the transmission chamber is provided with a clutch mechanism for controlling the tension of the transmission belt on one side of the transmission belt. The clutch mechanism includes a rotating arm, a tensioning wheel, and a hydraulic rod. The rotating arm is movably mounted on one side of the surface of the transmission chamber via a rotating shaft. One end of the rotating arm is movably mounted on a tensioning wheel via a rotating shaft. The hydraulic rod is movably mounted on the lower end of the rotating arm via a rotating shaft on the surface of the transmission chamber. The clutch mechanism can control whether the transmission belt is tensioned when needed, thereby controlling whether the power transmission of the device is interrupted.

[0009] Preferably, the movable end of the hydraulic rod is movably connected to the rotating arm via a rotating shaft, and the movable end of the hydraulic rod also needs to be connected to the rotating arm via a rotating shaft, thereby avoiding motion interference.

[0010] Preferably, a vibrating screen is provided at the lower end of the transmission chamber. This device can eventually throw the sunflower discs into the sunflower disc storage chamber through the high-speed rotating transmission drum. The sunflower seeds filtered out by the separation screen can enter the upper end of the vibrating screen through the separation screen and then be transmitted by the vibrating screen towards the sunflower seed storage chamber. Finally, they are sucked into the sunflower seed storage chamber by negative pressure. In this way, both the transmission of the sunflower discs and the separation of sunflower seeds can be completed.

[0011] Preferably, a number of levers are evenly fixed on the surface of the conveying roller. The levers, in conjunction with the rotating conveying roller, can convey the sunflower trays obliquely upwards and simultaneously strike the surface of the sunflower trays, thereby achieving the function of threshing the sunflower trays. Thus, it can perform both threshing and conveying.

[0012] Preferably, the separating sieve bottom is a strip sieve or a perforated sieve.

[0013] Preferably, the bottom of the separating screen is arc-shaped to conform to the rotation path of the conveyor roller.

[0014] Preferably, the separating sieve bottom is a flat sieve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses a high-speed rotating transmission roller in conjunction with a lever to transport the sunflower trays obliquely upwards, while also striking the surface of the sunflower trays to thresh the seeds. Thus, it can both thresh and transport the sunflower trays.

[0017] 2. When this utility model is in use, the hydraulic rod in the clutch mechanism retracts, which can drive the rotating arm to rotate. This allows control over whether the extrusion wheel tightly squeezes the transmission belt, and thus control whether the transmission belt is tensioned when needed. This also allows control over whether the power transmission of the device is interrupted, making it easier to control the operation of the transmission mechanism to adapt to various working conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the sunflower harvester's integrated threshing and sunflower tray throwing mechanism.

[0019] Figure 2 This is a side view of the integrated structure of the sunflower harvester for threshing and sunflower tray throwing.

[0020] Figure 3 This is a cross-sectional view of the integrated structure of the sunflower harvester for threshing and sunflower tray throwing.

[0021] Figure 4 This utility model relates to an integrated structure for threshing and sunflower tray throwing in a sunflower harvester. Figure 1 A magnified view of point A in the middle.

[0022] In the diagram: 1. Conveyor chamber; 2. Drive shaft; 3. Conveyor drum; 4. Separating screen bottom; 5. Sprocket; 6. Drive chain; 7. Drive shaft; 8. First pulley; 9. Second pulley; 10. Drive belt; 11. Rotating arm; 12. Tensioner; 13. Hydraulic rod; 14. Vibrating screen; 15. Lever. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides a technical solution: a sunflower harvester with an integrated structure for threshing and sunflower disc throwing, including a transmission chamber 1. The transmission chamber 1 is equipped with a transmission mechanism for transmission and threshing of sunflower discs. The transmission mechanism includes a drive shaft 2, a transmission roller 3, and a separating screen 4. Several drive shafts 2 are movably arranged inside the transmission chamber 1 via bearings. The transmission roller 3 is fixedly arranged on the outer surface of the drive shaft 2. The separating screen 4 is fixedly arranged at the lower end of the transmission roller 3 inside the transmission chamber 1. The separating screen 4 is arc-shaped to conform to the rotation path of the transmission roller 3. A transmission mechanism for driving the multiple transmission rollers 3 to rotate is arranged on the outside of the transmission chamber 1.

[0025] The transmission mechanism includes a sprocket 5, a transmission chain 6, a drive shaft 7, a first pulley 8, a second pulley 9, and a transmission belt 10. A sprocket 5 is fixedly mounted at one end of the transmission shaft, and a transmission chain 6 is sleeved between the sprockets 5. A drive shaft 7 is movably mounted on one side of the upper end of the transmission chamber 1 via a rotating shaft. A first pulley 8 is fixedly mounted on the outer side of the drive shaft 7, and a second pulley 9 is fixedly mounted on the upper surface of the transmission shaft. A transmission belt 10 is sleeved between the first pulley 8 and the second pulley 9. The transmission mechanism can drive multiple transmission shafts to rotate simultaneously, thereby causing the three transmission rollers 3 to rotate simultaneously to perform the transmission of the sunflower discs.

[0026] The transmission chamber 1 has a clutch mechanism on one side of the transmission belt 10 for controlling the tension of the transmission belt 10. The clutch mechanism includes a rotating arm 11, a tensioning wheel 12, and a hydraulic rod 13. The rotating arm 11 is movably mounted on one side of the surface of the transmission chamber 1 via a rotating shaft. The tensioning wheel 12 is movably mounted on one end of the rotating arm 11 via a rotating shaft. The hydraulic rod 13 is movably mounted on the lower end of the rotating arm 11 via a rotating shaft. The clutch mechanism can control whether the transmission belt 10 is tensioned when needed, thereby controlling whether the power transmission of the device is interrupted.

[0027] The movable end of the hydraulic rod 13 is movably connected to the rotating arm 11 via a rotating shaft. The movable end of the hydraulic rod 13 also needs to be connected to the rotating arm 11 via a rotating shaft, so as to avoid motion interference.

[0028] The lower end of the transmission chamber 1 is equipped with a vibrating screen 14. This device can finally throw the sunflower discs into the sunflower disc storage chamber through the high-speed rotating transmission roller 3. The sunflower seeds filtered by the separation screen bottom 4 can enter the upper end of the vibrating screen 14 through the separation screen bottom 4, and then be conveyed by the vibrating screen 14 towards the sunflower seed storage chamber. Finally, they are sucked into the sunflower seed storage chamber by negative pressure. In this way, both the transmission of the sunflower discs and the separation of sunflower seeds can be completed.

[0029] A number of levers 15 are uniformly fixed on the surface of the conveying roller 3. The levers 15, in conjunction with the rotating conveying roller 3, can convey the sunflower trays obliquely upwards and also strike the surface of the sunflower trays, thereby achieving the function of threshing the sunflower trays. Thus, it can both thresh and convey.

[0030] Working principle: When using this device, it is placed between the header and the sunflower tray storage bin. After the header collects the sunflower trays, the sunflower trays can be transported to the inside of the transfer bin 1 through the rake chain assembly (existing technology), so that it can wait for further sunflower tray transfer and threshing work.

[0031] After the sunflower trays enter the transfer chamber 1, the high-speed rotating transfer roller 3, in conjunction with the lever, can transfer the sunflower trays diagonally upwards. At the same time, it can also strike the surface of the sunflower trays, thereby achieving the function of threshing the sunflower trays. In this way, it can both thresh and transport the sunflower trays. Finally, the sunflower trays will be transported to the top, and the topmost transfer roller 3, in conjunction with centrifugal force, will throw the sunflower trays out and throw them into the sunflower tray storage chamber.

[0032] Furthermore, when this device is in use, the hydraulic rod 13 in the clutch mechanism retracts, which can drive the rotating arm 11 to rotate, thereby controlling whether the extrusion wheel tightly squeezes the transmission belt 10, and thus controlling whether the transmission belt 10 is tensioned when needed, thereby controlling whether the power transmission of the device is interrupted, thus facilitating the control of the transmission mechanism to adapt to various working conditions, and the transmission mechanism of the device can stop working when the sunflower tray is tilted.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sunflower harvester with integrated threshing and sunflower tray throwing structure, including a transmission bin (1), characterized in that: The transmission chamber (1) is equipped with a transmission mechanism for transmission and threshing of sunflower discs. The transmission mechanism includes a drive shaft (2), a transmission roller (3), and a separating screen (4). Several drive shafts (2) are movably arranged inside the transmission chamber (1) via bearings. A transmission roller (3) is fixedly arranged on the outer surface of the drive shaft (2). A separating screen (4) is fixedly arranged at the lower end of the transmission roller (3) inside the transmission chamber (1). A transmission mechanism for driving multiple transmission rollers (3) to rotate is provided on the outside of the transmission chamber (1).

2. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 1, characterized in that: The transmission mechanism includes a sprocket (5), a transmission chain (6), a drive shaft (7), a first pulley (8), a second pulley (9), and a transmission belt (10). A sprocket (5) is fixedly installed at one end of the transmission shaft, and a transmission chain (6) is sleeved between the sprockets (5). A drive shaft (7) is movably installed on one side of the upper end of the transmission chamber (1) via a rotating shaft. A first pulley (8) is fixedly installed on the outside of the drive shaft (7), and a second pulley (9) is fixedly installed on the upper surface of the transmission shaft. A transmission belt (10) is sleeved between the first pulley (8) and the second pulley (9).

3. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 2, characterized in that: The transmission chamber (1) has a clutch mechanism on one side of the transmission belt (10) for controlling the tension of the transmission belt (10). The clutch mechanism includes a rotating arm (11), a tensioning wheel (12), and a hydraulic rod (13). The rotating arm (11) is movably arranged on one side of the surface of the transmission chamber (1) via a rotating shaft. The tensioning wheel (12) is movably arranged at one end of the rotating arm (11) via a rotating shaft. The hydraulic rod (13) is movably arranged on the lower end of the rotating arm (11) via a rotating shaft on the surface of the transmission chamber (1).

4. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 3, characterized in that: The movable end of the hydraulic rod (13) is movably connected to the rotating arm (11) via a rotating shaft.

5. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 1, characterized in that: A vibrating screen (14) is provided at the lower end of the transmission chamber (1).

6. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 1, characterized in that: Several levers (15) are uniformly fixed on the surface of the transmission roller (3).

7. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 1, characterized in that: The separating sieve bottom (4) is a strip sieve or a perforated sieve.

8. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 1, characterized in that: The separating screen bottom (4) is arc-shaped to fit the rotation path of the conveyor roller (3).

9. The integrated structure for threshing and sunflower tray throwing in a sunflower harvester according to claim 1, characterized in that: The separating sieve bottom (4) is a flat sieve.

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