Grain discharging mechanism for corn harvester
By designing the rotating connection and vibration mechanism between the lifter shell and the granule outlet pipe in the corn harvester, the accumulation problem caused by the grain outlet being too far away from the grain tank is solved, the smooth transportation of grains is achieved, and economic losses are reduced.
Patent Information
- Application Number
- CN202421082542.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-17
AI Technical Summary
During the corn harvester's grain discharge process, due to structural limitations, the grain outlet is far away from the grain box, causing the grain to accumulate and slide, increasing economic losses.
A grain discharge mechanism including a lifter shell and a grain discharge pipe is designed. The grain discharge pipe is shaken by a vibrating mechanism when the lifter is running, breaking up the accumulated grains, and passing through a switch plate and a limit spring device. Ensure the smooth delivery of the grain to the grain box.
It effectively avoids the accumulation of grains at the discharge port, reduces unnecessary economic losses, and improves the efficiency and accuracy of grain transportation.
Smart Images
Figure CN222235683U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of corn harvesters, and in particular relates to a grain discharging mechanism for corn harvesters. Background Art
[0002] When corn harvesters are peeling corn ears, a small part of the ears will have grains falling off. For this reason, corn harvesters are equipped with grain boxes. In order to hold more corn grains in the grain box, the grain box is generally made higher, so the grain box needs to be used with a grain elevator. This method of collecting grains and ears separately is convenient for drying grains and ears separately, which meets the drying conditions of corn. Generally, the grains transported by the grain elevator will be sent to the grain box, but with the increase of corn maturity during harvest, some users need to directly transport the grains to the grain box. At this time, a dual-purpose grain port appears, but due to structural limitations, the grain port is often far away from the grain box, and the height difference is not large. This leads to the phenomenon that the grain outlet is small when unloading the grain into the grain box, and the grain will accumulate at the grain outlet due to the small angle. With the increase of the amount of grain accumulation, when the grain box unloads the ears, the grain will slide from the grain outlet to the ground. This structure will cause unnecessary economic losses to users. Utility Model Content
[0003] In view of the defects or shortcomings in the prior art, the utility model provides a grain discharging mechanism for a corn harvester, which can avoid the phenomenon of grain accumulation at the discharging port and reduce unnecessary economic losses.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] An embodiment of the utility model provides a grain discharging mechanism for a corn harvester, comprising an elevator shell and a grain discharging pipe, wherein a grain box interface is provided at one end of the grain discharging pipe away from the discharging port, a discharge port is provided at the bottom of the grain discharging pipe, a discharging port is provided at one side of the top of the elevator shell, one end of the discharging port is rotatably connected to the grain discharging pipe, and a vibration mechanism is provided between the elevator shell and the grain discharging pipe.
[0006] Furthermore, a switch plate is also provided in the grain outlet pipe, and the switch plate is located on a side of the feed outlet close to the grain box interface, and both sides of the bottom end of the switch plate are rotatably connected to the side walls of the grain outlet pipe.
[0007] Furthermore, a handle is provided at one end of the switch plate, and a limit spring device is provided at the other end of the switch plate.
[0008] Furthermore, a first rotating seat is arranged at the top of the discharge port, a second rotating seat is arranged at the top of one end of the particle discharge pipe close to the discharge port, and the first rotating seat is rotatably connected to the second rotating seat via a rotating shaft.
[0009] Furthermore, the end face size of the pellet discharging pipe is larger than the end face size of the discharge port, and the discharge port extends to one side of the pellet discharging pipe, and the pellet discharging pipe is sleeved outside the discharge port.
[0010] Furthermore, the vibration mechanism includes a bearing seat, which is fixed to the outer side of the middle part of the elevator shell. The bearing seat is rotatably connected to a transmission shaft through a bearing, one end of the transmission shaft is fixedly connected to a transmission sprocket, and the other end of the transmission shaft is fixedly connected to a crank shaft.
[0011] Furthermore, the crankshaft is fixedly connected to the transmission shaft via a crankshaft seat, and the axis of the crankshaft and the axis of the transmission shaft are not on the same straight line.
[0012] Furthermore, a rocker arm seat is provided at the bottom of the grain discharge pipe, and the rocker arm seat is located between the discharge port and the grain box interface. The crank shaft and the rocker arm seat are connected through a rocker arm, one end of the rocker arm is rotatably connected to the crank shaft, and the other end is rotatably connected to the rocker arm seat.
[0013] Furthermore, an elevator is arranged inside the elevator shell, and the elevator includes an elevator upper shaft and an elevator lower shaft, an elevator upper shaft sprocket is fixed on the elevator upper shaft, and an elevator lower shaft sprocket is fixed on the elevator lower shaft.
[0014] Furthermore, the sprocket on the upper shaft of the elevator is connected to the sprocket on the lower shaft of the elevator through the elevator chain rake transmission, and the sprocket on the upper shaft of the elevator is also connected to the transmission sprocket through a chain, and one end of the lower shaft of the elevator is connected to the drive motor.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The utility model realizes that the outer shell of the elevator is rotatably connected with the grain discharge pipe, and a vibration mechanism is arranged between the outer shell of the elevator and the grain discharge pipe. When the elevator is running, the vibration mechanism is used to shake the grain discharge pipe to scatter the grains accumulated in the grain discharge pipe, thereby avoiding the phenomenon of grain accumulation at the discharge port and reducing unnecessary economic losses. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of the discharging mechanism in the embodiment of the utility model;
[0018] Figure 2 This is a front view of the discharging mechanism in the embodiment of the utility model;
[0019] Figure 3 This is a diagram showing the position relationship between the transmission sprocket and the crank shaft in the embodiment of the utility model;
[0020] Figure 4 This is a diagram showing the connection relationship between the crankshaft and the crankshaft seat in the embodiment of the utility model;
[0021] Figure 5 This is a schematic diagram of the back structure of the discharging mechanism in the embodiment of the utility model;
[0022] Figure 6 This is a schematic diagram of the structure of the limit spring device in the embodiment of the utility model;
[0023] Figure 7 This is a position state diagram of the switch plate parallel to the bottom surface of the particle outlet pipe in the embodiment of the utility model;
[0024] Figure 8 This is a position state diagram of the bottom surface of the vertical particle outlet pipe of the switch plate in the embodiment of the utility model;
[0025] Among them, 1. elevator shell; 2. grain discharge pipe; 3. discharge port; 4. grain box interface; 5. feed port; 6. grain box; 7. switch plate; 8. spring limit device; 9. first rotating seat; 10. second rotating seat; 11. rotating shaft; 12. bearing seat; 13. transmission shaft; 14. transmission sprocket; 15. crank shaft; 16. crank shaft seat; 17. rocker arm seat; 18. rocker arm; 19. elevator upper shaft; 20. elevator upper shaft sprocket; 21. elevator chain rake; 22. chain; 23. rotating shaft; 24. handle; 25. limit spring; 26. first connecting rod; 27. second connecting rod. DETAILED DESCRIPTION
[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0027] A typical implementation of the present utility model is as follows Figure 1 and Figure 2 As shown, a grain discharging mechanism for a corn harvester comprises an elevator shell 1, a discharging port 3 is arranged on one side of the top of the elevator shell 1, the discharging port 3 is connected to a grain discharging pipe 2, the grain discharging pipe 2 is a rectangular pipe structure, the interior of which is hollow and open at both ends, the grain discharging pipe 2 is inclined, a grain box interface 4 is arranged at one end of the grain discharging pipe 2 away from the discharging port 3 for connecting to a grain box, and the outer side of the grain box interface 4 is wrapped with rubber, which can prevent the grain box from colliding with the grain discharging pipe 2 during the unloading process.
[0028] A discharge port 5 is provided on the lower surface of the grain discharge pipe 2, and a grain box 6 is placed below the discharge port 5. A switch plate 7 is also provided in the grain discharge pipe 2, and the switch plate 7 is located on the side of the discharge port 5 close to the grain box interface 4. The bottom end of the switch plate 7 is fixedly connected with a rotating shaft 23, and the two ends of the rotating shaft 23 are rotatably connected to the side walls of the grain discharge pipe 2, so that the switch plate 7 can rotate around the bottom rotating shaft 23. When the switch plate 7 is rotated to be parallel to the bottom surface of the grain discharge pipe 2, the switch plate 7 can completely cover the discharge port 5. At this time, the grains will enter the grain box from the grain box interface 4. When the switch plate 7 is rotated to be perpendicular to the bottom surface of the grain discharge pipe 2, the switch plate 7 completely closes the grain box interface 4. At this time, the grains will enter the grain box 6 from the discharge port 5, thereby realizing the conversion between the grain entering the grain box and the grain box 6.
[0029] A handle 24 is provided at one end of the switch plate 7. Figure 6 As shown, one end of the rotating shaft 23 passes through the side wall of the grain outlet pipe 2 and is rotatably connected to the side wall of the grain outlet pipe 2. The end of the rotating shaft 23 located on the outer side of the grain outlet pipe 2 is rotatably connected to the handle 24. The handle 24 is an "L"-shaped structure. Rotating the handle 24 facilitates driving the switch plate 7 to rotate around the rotating shaft 23 at its bottom, thereby realizing the conversion between the grain box and the grain box 6.
[0030] A spring limit device 8 is provided at the other end of the switch plate 7, and the spring limit device 8 includes a limit spring 25, a first connecting rod 26 and a second connecting rod 27. Specifically, the end of the rotating shaft 23 away from the handle 24 passes through the side wall of the particle outlet pipe 2 and is rotatably connected to the side wall of the particle outlet pipe 2. The end of the rotating shaft 23 located outside the particle outlet pipe 2 is connected to the first connecting rod 26. The first connecting rod 26 is an "L"-shaped structure and can rotate with the rotating shaft 23. The second connecting rod 27 is arranged on the outer wall of the particle outlet pipe 2. One end of the limit spring 25 is connected to the first connecting rod 26, and the other end is connected to the second connecting rod 27. When the switch plate 7 is located at two extreme positions, that is, parallel to the bottom surface of the particle outlet pipe 2 and perpendicular to the bottom surface of the particle outlet pipe 2, as shown in FIG. Figure 7 and Figure 8 As shown, the axis of the limit spring 25 is always at a set angle with the switch plate 7, thereby ensuring that the switch plate 7 is always maintained at two extreme positions in the absence of external force, avoiding the situation where grain leaks due to the switch plate 7 being not closed tightly.
[0031] A first rotating seat 9 is provided on the top of the discharge port 3, and a second rotating seat 10 is provided on the top of one end of the grain discharge pipe 2 close to the discharge port 3. The first rotating seat 9 and the second rotating seat 10 are rotatably connected via a rotating shaft 11, so that the elevator housing 1 and the grain discharge pipe 2 can rotate relative to each other. Since the end face size of the grain discharge pipe 2 is larger than the end face size of the discharge port 3, and the discharge port 3 extends to one side of the grain discharge pipe 2, the grain discharge pipe 2 can be sleeved on the outside of the discharge port 3, and sufficient gap is left to allow the grain discharge pipe 2 to shake around the rotating shaft 11 under the action of external force, thereby breaking up the grains accumulated in the grain discharge pipe 2 and sending them into the grain box.
[0032] A vibration mechanism is provided between the elevator housing 1 and the particle outlet pipe 2. Figure 3 As shown, the vibration mechanism includes a bearing seat 12, which is fixed to the outer side of the middle part of the elevator housing 1. The bearing seat 12 is rotatably connected to a transmission shaft 13 through a bearing. One end of the transmission shaft 13 is fixedly connected to a transmission sprocket 14, and the other end of the transmission shaft 13 is fixedly connected to a crank shaft 15. Figure 4 As shown, the crankshaft 15 is fixedly connected to the transmission shaft 13 via a crankshaft seat 16, so that the axis of the crankshaft 15 and the axis of the transmission shaft 13 are not on the same straight line.
[0033] A rocker seat 17 is also provided at the bottom of the grain discharge pipe 2, and the rocker seat 17 is located between the discharge port 5 and the grain box interface 4. The crank shaft 15 and the rocker seat 17 are connected via a rocker arm 18. One end of the rocker arm 18 is rotatably connected to the crank shaft 15, and the other end is rotatably connected to the rocker seat 17, so that a crank rocker mechanism is formed between the crank shaft seat 16, the crank shaft 15, the rocker arm 18 and the rocker seat 17. When the transmission sprocket 14 rotates, the transmission sprocket 14 drives the crank rocker mechanism to move through the transmission shaft 13, thereby utilizing the rocker arm 18 to drive the grain discharge pipe 2 to shake around the rotating axis 11.
[0034] The elevator housing 1 is provided with an elevator, such as Figure 5 As shown, the elevator includes an upper shaft 19 of the elevator and a lower shaft of the elevator (not shown in the figure), an upper shaft sprocket 20 of the elevator is fixed on the upper shaft 19 of the elevator, and a lower shaft sprocket of the elevator is fixed on the lower shaft of the elevator (not shown in the figure), the upper shaft sprocket 20 of the elevator is connected to the lower shaft sprocket of the elevator through an elevator chain rake 21, and the upper shaft sprocket 20 of the elevator is also connected to the transmission sprocket 14 through a chain 22. One end of the lower shaft of the elevator is connected to the driving motor, and then the driving motor is used to drive the transmission sprocket 14 to rotate through the elevator chain rake 21 and the chain 22. The upper shaft 19 of the elevator and the transmission shaft 13 can achieve speed ratio conversion by installing different numbers of sprocket teeth.
[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A grain discharging mechanism for a corn harvester, characterized in that: It includes an elevator shell and a grain discharge pipe, wherein a grain box interface is arranged at one end of the grain discharge pipe away from the discharge port, a discharge port is arranged at the bottom of the grain discharge pipe, a discharge port is arranged at one side of the top of the elevator shell, one end of the discharge port is rotatably connected to the grain discharge pipe, and a vibration mechanism is arranged between the elevator shell and the grain discharge pipe.
2. A grain discharging mechanism for a corn harvester as claimed in claim 1, characterized in that: A switch plate is also provided in the grain outlet pipe, and the switch plate is located on a side of the feed outlet close to the grain box interface, and both sides of the bottom end of the switch plate are rotatably connected to the side walls of the grain outlet pipe.
3. A grain discharging mechanism for a corn harvester as claimed in claim 2, characterized in that: A handle is arranged at one end of the switch plate, and a limit spring device is arranged at the other end of the switch plate.
4. A grain discharging mechanism for a corn harvester as claimed in claim 1, characterized in that: A first rotating seat is arranged at the top of the discharge port, a second rotating seat is arranged at the top of one end of the particle discharge pipe close to the discharge port, and the first rotating seat is rotatably connected with the second rotating seat via a rotating shaft.
5. The grain discharging mechanism for a corn harvester according to claim 1, characterized in that: The end face size of the pellet discharging pipe is larger than the end face size of the discharge port, and the discharge port extends to one side of the pellet discharging pipe, and the pellet discharging pipe is sleeved outside the discharge port.
6. A grain discharging mechanism for a corn harvester as claimed in claim 1, characterized in that: The vibration mechanism includes a bearing seat, which is fixed to the outer side of the middle part of the elevator shell. The bearing seat is rotatably connected to a transmission shaft through a bearing. One end of the transmission shaft is fixedly connected to a transmission sprocket, and the other end of the transmission shaft is fixedly connected to a crank shaft.
7. A grain discharging mechanism for a corn harvester as claimed in claim 6, characterized in that: The crankshaft is fixedly connected to the transmission shaft via a crankshaft seat, and the axis of the crankshaft and the axis of the transmission shaft are not on the same straight line.
8. A grain discharging mechanism for a corn harvester as claimed in claim 7, characterized in that: A rocker arm seat is also provided at the bottom of the grain discharge pipe, and the rocker arm seat is located between the feed port and the grain box interface. The crank shaft and the rocker arm seat are connected through a rocker arm, one end of the rocker arm is rotatably connected to the crank shaft, and the other end is rotatably connected to the rocker arm seat.
9. The grain discharging mechanism for a corn harvester according to claim 1, characterized in that: An elevator is arranged inside the elevator shell, and the elevator comprises an elevator upper shaft and an elevator lower shaft. An elevator upper shaft sprocket is fixed on the elevator upper shaft, and an elevator lower shaft sprocket is fixed on the elevator lower shaft.
10. A grain discharging mechanism for a corn harvester as claimed in claim 9, characterized in that: The sprocket wheel on the upper shaft of the elevator is connected to the sprocket wheel on the lower shaft of the elevator through the elevator chain rake transmission, and the sprocket wheel on the upper shaft of the elevator is also connected to the transmission sprocket through a chain, and one end of the lower shaft of the elevator is connected to the driving motor.