Threshing device of dual-purpose harvester for rice and wheat
By using a threshing wheel and filter plate structure driven by a transmission motor, combined with an inclined filter screen and an electric push rod, the problem of separating wheat chaff from wheat grains in existing devices has been solved, achieving efficient separation of wheat chaff and wheat grains, improving threshing efficiency and simplifying the cleaning process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAINAN HONGJIA AQUACULTURE CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-19
AI Technical Summary
In existing rice and wheat threshing devices, the blowing function is not effective in separating wheat bran and grains, resulting in some impurities still containing wheat grains, which reduces threshing efficiency.
The threshing wheel and filter plate structure are driven by a transmission motor. The rotating gear and the transmission gear work together to make the threshing wheel rotate in the same direction. Combined with the inclined filter screen and electric push rod to push the filter plate, the wheat husk and wheat grain are separated. The spring pushes the bonding plate to prevent mixing, and the telescopic plate ensures that the wheat husk falls along the inclined plate, while the wheat grain falls through the discharge port.
It achieves complete separation of wheat husks and grains, improves threshing efficiency, simplifies the cleaning process, and saves manpower and resources.
Smart Images
Figure CN224250260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of threshing devices, specifically a threshing device for a rice and wheat harvester. Background Technology
[0002] A threshing machine is a harvesting machine that separates the grains from the stalks of crops, primarily referring to harvesting grain crops. Different types of threshing machines exist depending on the crop. This type is suitable for threshing rice and wheat.
[0003] According to a published application for a single-ear wheat threshing device (publication number: CN217308355U), the device also includes a blowing function, which can directly separate the wheat chaff and grains, achieving ideal chaff removal. This utility model has a simple structure, is easy to operate, lightweight, easy to move and carry, and is simple to clean after use, saving manpower and resources.
[0004] However, in actual use, the above-mentioned equipment cannot fully separate the wheat bran and grains by relying solely on the air blowing function. As a result, some impurities still contain wheat grains, making it difficult to fully thresh the wheat bran and grains, thus reducing the threshing efficiency of the threshing device. In view of this, we propose a threshing device for a rice and wheat dual-purpose harvester. Utility Model Content
[0005] The purpose of this utility model is to provide a threshing device for a rice and wheat harvester to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a threshing device for a rice and wheat dual-purpose harvester, comprising a housing, a drive motor fixedly connected to the outer wall of the housing, a drive wheel fixedly connected to the output end of the drive motor passing through the housing, a drive belt drivingly connected to the outer wall of the drive wheel, a threshing motor disposed on the outer wall of the housing, a threshing wheel fixedly connected to the output end of the threshing motor, a filter plate slidably connected to the inner wall of the housing, and a filter assembly disposed inside the housing, the filter assembly comprising:
[0007] The casing is fixedly connected to the outer wall of the outer shell. The threshing motor is fixedly connected to the outer wall of the casing. The threshing motor passes through the casing and is fixedly connected to the threshing wheel. A rotating gear is fixedly connected to the output end of the threshing motor. A transmission gear meshes with the outer wall of the rotating gear. A baffle is fixedly connected to the inner wall of the outer shell.
[0008] A bonding plate is slidably connected to the inner wall of the baffle. A limiting plate is fixedly connected to the outer wall of the bonding plate. A spring is fixedly connected to the outer wall of the limiting plate. An electric push rod is fixedly connected to the outer wall of the filter plate.
[0009] Preferably, the outer casing is provided with a feeding assembly, which includes a telescopic plate. The telescopic plate is fixedly connected to the end of the filter plate away from the electric push rod. A chip removal plate is fixedly connected to the end of the telescopic plate away from the filter plate. A discharge port is provided on the outer wall of the outer casing below the filter plate. The telescopic plate can seal the filter plate and the outer casing, so that the wheat husks can only fall down along the chip removal plate, and the wheat grains can fall from the filter plate into the discharge port.
[0010] Preferably, the chip removal plate is fixedly connected to the outer wall of the outer shell, and the outer wall of the chip removal plate is provided with an inclined plate. The width of the inclined plate is the same as the width of the filter plate, so that when the filter plate is pushed back and forth by the electric push rod, the wheat husks can fall fully along the inclined plate of the chip removal plate away from the wheat grains.
[0011] Preferably, the inner wall of the outer shell is provided with a limiting groove that matches the limiting plate. The limiting plate is slidably connected to the inner wall of the limiting groove. The end of the spring away from the limiting plate is fixedly connected to the inner wall of the limiting groove. When the filter plate is pushed back and forth by the electric push rod, the spring pushes the bonding plate to move along the limiting groove, so that the bonding plate blocks the outer wall of the filter plate.
[0012] Preferably, the transmission gear is rotatably connected to the inner wall of the housing, and there are two sets of threshing wheels. The shafts of the two sets of threshing wheels are fixedly connected to the rotating gears, and the rotating gears of both sets mesh with the outer wall of the transmission gears. The threshing motor cooperates with the transmission gears through the rotating gears to make the threshing wheels rotate in the same direction.
[0013] Preferably, the filter screen on the filter plate is inclinedly arranged on the inner wall of the filter plate, and the lower end of the bonding plate is provided with an inclined surface. The lower outer wall of the bonding plate is bonded to the filter screen, so that when the filter plate is pushed back and forth by the electric push rod, the bonding plate can always be bonded to the filter screen, making it difficult for wheat husks to mix with wheat grains. Moreover, because the filter screen is placed at an incline, the wheat grains fall into the discharge port through the filter screen, and the wheat husks can roll off onto the lower chip plate by gravity when moving on the filter screen.
[0014] Preferably, the electric push rod is fixedly connected to the inner wall of the housing, and the number of transmission wheels is set in three sets. One set of transmission wheels is fixedly connected to the transmission motor, and the other two sets of transmission wheels are set below the threshing wheel. The end of the baffle away from the transmission motor is flush with the end of the transmission wheel away from the transmission motor.
[0015] Compared with the prior art, this utility model provides a threshing device for a rice and wheat dual-purpose harvester, which has the following beneficial effects:
[0016] 1. The threshing device of this rice and wheat harvester uses a threshing motor that, through the cooperation of a rotating gear and a transmission gear, makes two sets of threshing wheels rotate in the same direction to fully thresh the wheat ears. The filter plate is pushed back and forth by an electric push rod, allowing the wheat grains to fall through the filter screen into the discharge port. A spring pushes a bonding plate to block the outer wall of the filter plate, preventing the wheat husks from mixing with the wheat grains. The wheat husks move on the inclined filter screen and can roll off under gravity, so that the wheat husks are fully separated from the wheat grains.
[0017] 2. The threshing device of this rice and wheat harvester can seal the filter plate and the outer shell through the telescopic plate, so that the wheat husks can fall fully along the inclined plate of the lower chaff plate away from the wheat grains, and the wheat grains can fall from the filter plate into the discharge port, so that the wheat grains and wheat husks can be fully separated. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0019] Figure 2 This is a schematic diagram of the rear view of the main body structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;
[0021] Figure 4 This is a schematic diagram of the filter assembly structure of this utility model;
[0022] Figure 5 This is an enlarged structural diagram of region A of this utility model.
[0023] In the diagram: 1. Outer shell; 2. Drive motor; 3. Drive wheel; 4. Drive belt; 5. Threshing motor; 6. Threshing wheel; 7. Filter plate; 8. Filter assembly; 81. Housing; 82. Rotating gear; 83. Drive gear; 84. Baffle; 85. Adhesive plate; 86. Limiting plate; 87. Spring; 88. Electric push rod; 9. Feeding assembly; 91. Telescopic plate; 92. Chip removal plate; 93. Discharge port. Detailed Implementation
[0024] like Figure 1 As shown in the figure, this utility model provides a technical solution: a threshing device for a rice and wheat harvester, including a shell 1, a transmission motor 2 fixedly connected to the outer wall of the shell 1, the output end of the transmission motor 2 passing through the shell 1 and fixedly connected to a transmission wheel 3, a transmission belt 4 drivingly connected to the outer wall of the transmission wheel 3, a threshing motor 5 provided on the outer wall of the shell 1, a threshing wheel 6 fixedly connected to the output end of the threshing motor 5, a filter plate 7 slidably connected to the inner wall of the shell 1, and a filter assembly 8 provided inside the shell 1, the filter assembly 8 including a housing 81, a rotating gear 82, a transmission gear 83, a baffle 84, a bonding plate 85, a limiting plate 86, a spring 87, and an electric push rod 88.
[0025] In one embodiment of this utility model, the casing 81 is fixedly connected to the outer wall of the outer shell 1, the threshing motor 5 is fixedly connected to the outer wall of the casing 81, the threshing motor 5 passes through the casing 81 and is fixedly connected to the threshing wheel 6, the output end of the threshing motor 5 is fixedly connected to a rotating gear 82, the outer wall of the rotating gear 82 is meshed with a transmission gear 83, and the inner wall of the outer shell 1 is fixedly connected to a baffle 84.
[0026] In one embodiment of this utility model, the bonding plate 85 is slidably connected to the inner wall of the baffle 84, the outer wall of the bonding plate 85 is fixedly connected to the limiting plate 86, the outer wall of the limiting plate 86 is fixedly connected to the spring 87, and the outer wall of the filter plate 7 is fixedly connected to the electric push rod 88.
[0027] In addition, the inner part of the outer casing 1 is provided with a feeding assembly 9, which includes a telescopic plate 91. The telescopic plate 91 is fixedly connected to the end of the filter plate 7 away from the electric push rod 88. The end of the telescopic plate 91 away from the filter plate 7 is fixedly connected to a chip removal plate 92. The outer wall of the outer casing 1 below the filter plate 7 is provided with a discharge port 93. The telescopic plate 91 can seal the filter plate 7 and the outer casing 1, so that the wheat husks can only fall along the chip removal plate 92, and the wheat grains can fall from the filter plate 7 into the discharge port 93, so that the wheat grains and wheat husks can be fully separated.
[0028] In an embodiment of this utility model, the chip removal plate 92 is fixedly connected to the outer wall of the outer shell 1. The outer wall of the chip removal plate 92 is provided with an inclined plate. The width of the inclined plate is the same as the width of the filter plate 7, so that when the filter plate 7 is pushed back and forth by the electric push rod 88, the wheat husks can fall along the inclined plate of the chip removal plate 92 and move away from the wheat grains, so that the wheat grains and wheat husks are separated.
[0029] In an embodiment of this utility model, the inner wall of the outer shell 1 is provided with a limiting groove that matches the limiting plate 86. The limiting plate 86 is slidably connected to the inner wall of the limiting groove. The end of the spring 87 away from the limiting plate 86 is fixedly connected to the inner wall of the limiting groove. When the filter plate 7 is pushed back and forth by the electric push rod 88, the spring 87 pushes the bonding plate 85 to move along the limiting groove, so that the bonding plate 85 blocks the outer wall of the filter plate 7, preventing the wheat husks from falling along the gap between the filter plate 7 and the outer shell 1 and mixing with the wheat grains.
[0030] In this embodiment of the utility model, the transmission gear 83 is rotatably connected to the inner wall of the housing 81, and two sets of threshing wheels 6 are provided. The shafts of the two sets of threshing wheels 6 are fixedly connected to the rotating gear 82. Both sets of rotating gears 82 mesh with the outer wall of the transmission gear 83. The threshing motor 5 cooperates with the transmission gear 83 through the rotating gear 82, so that the threshing wheels 6 rotate in the same direction to fully thresh the wheat ears.
[0031] In this embodiment of the present invention, the filter screen on the filter plate 7 is inclinedly arranged on the inner wall of the filter plate 7, and the lower end of the bonding plate 85 is provided with an inclined surface. The lower outer wall of the bonding plate 85 is bonded to the filter screen, so that when the filter plate 7 is pushed back and forth by the electric push rod 88, the bonding plate 85 can always be bonded to the filter screen, making it difficult for the wheat husk to mix with the wheat grain. Moreover, since the filter screen is placed at an incline, the wheat grain falls into the discharge port 93 through the filter screen, and the wheat husk can roll down onto the chip plate 92 by gravity when it moves on the filter screen, so that the wheat husk separates from the wheat grain.
[0032] In this embodiment of the utility model, the electric push rod 88 is fixedly connected to the inner wall of the outer casing 1. There are three sets of transmission wheels 3. One set of transmission wheels 3 is fixedly connected to the transmission motor 2, and the other two sets of transmission wheels 3 are located below the threshing wheel 6. The end of the baffle 84 away from the transmission motor 2 is flush with the end of the transmission wheel 3 away from the transmission motor 2, so that the transmission wheel 3 moves the wheat ears below the threshing wheel 6 for threshing through cooperation with the transmission belt 4.
[0033] In this invention, during use, the drive motor 2 rotates the drive wheel 3. The drive wheel 3, in conjunction with the drive belt 4, moves the wheat ears below the threshing wheel 6. At this time, the threshing motor 5, through the engagement of the rotating gear 82 and the drive gear 83, causes the two sets of threshing wheels 6 to rotate in the same direction, thoroughly threshing the wheat ears. The mixture of wheat husks and grains moves onto the filter plate 7, which is then pushed back and forth by the electric push rod 88, causing the wheat grains to fall through the filter screen into the discharge port 93. Spring 87 pushes the bonding plate 85 to block the outer wall of filter plate 7, preventing wheat husks from mixing with wheat grains. Since the filter screen is placed at an angle, the wheat husks can roll down onto the lower chip plate 92 by gravity when moving on the filter screen, so that the wheat husks are fully separated from the wheat grains. The telescopic plate 91 can seal the filter plate 7 and the outer shell 1, so that the wheat husks can fall down along the inclined plate of the lower chip plate 92 away from the wheat grains. The wheat grains can fall from the filter plate 7 into the discharge port 93, so that the wheat grains and wheat husks can be fully separated. The same principle applies to rice.
[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A threshing device for a rice and wheat harvester, comprising a housing (1), wherein a drive motor (2) is fixedly connected to the outer wall of the housing (1), the output end of the drive motor (2) passes through the housing (1) and is fixedly connected to a drive wheel (3), a drive belt (4) is drively connected to the outer wall of the drive wheel (3), a threshing motor (5) is provided on the outer wall of the housing (1), a threshing wheel (6) is fixedly connected to the output end of the threshing motor (5), and a filter plate (7) is slidably connected to the inner wall of the housing (1), characterized in that: The housing (1) is provided with a filter assembly (8), which includes: A casing (81) is fixedly connected to the outer wall of the outer shell (1). The threshing motor (5) is fixedly connected to the outer wall of the casing (81). The threshing motor (5) passes through the casing (81) and is fixedly connected to the threshing wheel (6). A rotating gear (82) is fixedly connected to the output end of the threshing motor (5). A transmission gear (83) meshes with the outer wall of the rotating gear (82). A baffle (84) is fixedly connected to the inner wall of the outer shell (1). A bonding plate (85) is slidably connected to the inner wall of the baffle (84). A limiting plate (86) is fixedly connected to the outer wall of the bonding plate (85). A spring (87) is fixedly connected to the outer wall of the limiting plate (86). An electric push rod (88) is fixedly connected to the outer wall of the filter plate (7).
2. The threshing device for a rice and wheat dual-purpose harvester according to claim 1, characterized in that: The outer casing (1) is provided with a feeding assembly (9), which includes a telescopic plate (91). The telescopic plate (91) is fixedly connected to the end of the filter plate (7) away from the electric push rod (88). The end of the telescopic plate (91) away from the filter plate (7) is fixedly connected to a chip removal plate (92). The outer wall of the outer casing (1) below the filter plate (7) is provided with a discharge port (93).
3. The threshing device for a rice and wheat dual-purpose harvester according to claim 2, characterized in that: The chip removal plate (92) is fixedly connected to the outer wall of the outer shell (1). An inclined plate is provided on the outer wall of the chip removal plate (92), and the width of the inclined plate is the same as the width of the filter plate (7).
4. The threshing device for a rice and wheat dual-purpose harvester according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a limiting groove that matches the limiting plate (86). The limiting plate (86) is slidably connected to the inner wall of the limiting groove, and the end of the spring (87) away from the limiting plate (86) is fixedly connected to the inner wall of the limiting groove.
5. The threshing device for a rice and wheat dual-purpose harvester according to claim 1, characterized in that: The transmission gear (83) is rotatably connected to the inner wall of the casing (81). There are two sets of threshing wheels (6). The shafts of the two sets of threshing wheels (6) are fixedly connected to the rotating gears (82). Both sets of rotating gears (82) mesh with the outer wall of the transmission gear (83).
6. The threshing device for a rice and wheat dual-purpose harvester according to claim 1, characterized in that: The filter screen on the filter plate (7) is inclinedly arranged on the inner wall of the filter plate (7), and the lower end of the bonding plate (85) is provided with an inclined surface, and the lower outer wall of the bonding plate (85) is bonded to the filter screen.
7. The threshing device for a rice and wheat dual-purpose harvester according to claim 1, characterized in that: The electric push rod (88) is fixedly connected to the inner wall of the outer shell (1). There are three sets of transmission wheels (3). One set of transmission wheels (3) is fixedly connected to the transmission motor (2). The other two sets of transmission wheels (3) are located below the threshing wheel (6). The end of the baffle (84) away from the transmission motor (2) is flush with the end of the transmission wheel (3) away from the transmission motor (2).