Adjustable efficient separation equipment for rice threshing
By adjusting the threshing drum and separating screen aperture using a rotating screw driven by a dual-shaft motor and an adjustable vibrating motor, the problem of existing equipment being unable to adapt to different rice varieties and maturity levels is solved, achieving efficient separation of paddy rice and straw.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
Existing high-efficiency rice threshing and separation equipment cannot adjust the speed and gap of the threshing drum according to different rice varieties and maturity levels, resulting in over-threshing and poor separation effect.
A dual-axis motor drives a rotating screw, which in turn drives the threshing drum to rotate via a threaded slider. The speed and clearance of the threshing drum are adjusted, and the aperture of the separating screen and the vibration frequency are optimized by using an adjustable vibrating motor and manual adjustment of the screen plate with the same aperture.
It enables the adjustment of the threshing drum speed and gap according to needs, avoids rice damage, ensures effective separation of rice and straw, and improves threshing effect and equipment applicability.
Smart Images

Figure CN224069243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a threshing and separation device, specifically an adjustable high-efficiency rice threshing and separation device, belonging to the technical field of rice processing equipment. Background Technology
[0002] Rice is a food made from paddy grains through processes such as cleaning, hulling, milling, and finishing. Mechanized rice threshing and separation equipment is needed to process rice. This equipment is a mechanical device used to thresh paddy grains from the rice ears and efficiently separate the paddy grains from the straw.
[0003] Existing high-efficiency rice threshing and separation equipment only uses the rotation of a non-adjustable threshing drum to thresh the rice ears. Since the varieties and maturity of the rice to be threshed may vary, the rotation speed and gap of the threshing drum cannot be adjusted to adapt to different threshing needs. This may cause over-threshing, resulting in rice grain damage. Furthermore, the aperture and vibration frequency of the separating screen cannot be easily adjusted, resulting in poor separation effect and failing to ensure effective separation of rice grains and straw. Consequently, the threshing effect and applicability of the high-efficiency rice threshing and separation equipment are reduced.
[0004] Therefore, an adjustable, high-efficiency rice threshing and separation device is proposed here. Utility Model Content
[0005] This invention proposes an adjustable high-efficiency rice threshing and separation device to solve the problem in the prior art that the high-efficiency rice threshing and separation device cannot be easily adjusted to adapt to different types of rice.
[0006] This utility model is achieved through the following technical solution: an adjustable rice threshing and separation high-efficiency separation device, including a receiving box, and a threshing adjustment mechanism is provided above the receiving box;
[0007] The threshing adjustment mechanism includes two fixed blocks. The bottom surface of each fixed block is fixedly connected to the upper surface of the receiving box. A dual-axis motor is provided on the back of one of the fixed blocks. The output end of the dual-axis motor is provided with two rotating screws. Two limiting grooves are opened on the back of one of the fixed blocks. A limiting slider is slidably connected inside each limiting groove. A threshing drum is rotatably connected inside each limiting slider. A rotating motor is provided at the end of each threshing drum near the dual-axis motor. A threaded slider is provided on the outer surface of each rotating motor. The two rotating screws are respectively threadedly connected to the inside of the two threaded sliders.
[0008] A separation adjustment component is provided below the threshing adjustment mechanism, and a threshing drive component is provided above the separation adjustment component.
[0009] The separation adjustment assembly includes a separation screen, which is positioned above the receiving box. The bottom surface of the separation screen is equipped with two sets of adjustable vibration motors. The screen plate with the same aperture is slidably connected inside the separation screen. A pulling plate is provided on the front side of the screen plate with the same aperture, and the back side of the pulling plate is in contact with the front side of the separation screen.
[0010] The threshing drive assembly includes a drive motor, the back of which is fixedly connected to the front of another fixed block. The output end of the drive motor is provided with a drive rod, which is rotatably connected to the inside of the two fixed blocks.
[0011] The outer surface of the drive rotor is provided with a threshing cylinder, and the outer surface of the threshing cylinder is fixedly connected to a feeding hopper.
[0012] The bottom surface of the receiving box is provided with two sets of support legs, and the bottom end of each set of support legs is provided with a support base plate.
[0013] The upper surface of the receiving box is provided with two sets of support frames, and the upper surface of the separating screen is provided with two sets of extension plates. The bottom surfaces of the two sets of extension plates are in contact with the upper surfaces of the two sets of support frames respectively. The bottom surface of each set of extension plates is movably hinged with a sliding rod, and the two sets of sliding rods are slidably connected to the inside of the two sets of support frames respectively.
[0014] This utility model provides an adjustable, high-efficiency rice threshing and separation device, which has the following beneficial effects:
[0015] 1. This adjustable rice threshing and separation equipment can use the power provided by the dual-shaft motor to drive two rotating screws to rotate. Through the cooperation of the rotating screws and the threaded slider, the rotating motor and the limit slider can be driven to move. This allows the rotating motor to drive the threshing drum to rotate, and the speed and gap of the threshing drum can be easily adjusted to adapt to different threshing needs and avoid rice damage caused by over-threshing.
[0016] 2. This adjustable rice threshing and separation equipment allows for manual pulling of a pull plate, causing a screen plate of the same aperture to slide between fixed screens inside the separating screen. Since the screen plate of the same aperture has the same diameter as the screen hole of the separating screen, the maximum screen hole of the structure is when they completely overlap. Pulling the screen plate of the same aperture can block the screen hole of the separating screen, thereby adjusting the size of the screen hole of the separating screen. Furthermore, by adjusting the power of the adjustable vibration motor, the separation effect can be optimized to ensure the effective separation of rice and straw. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the receiving box of this utility model;
[0018] Figure 2This is a rear view schematic diagram of the dual-axis motor of this utility model;
[0019] Figure 3 This is a bottom view of the separation screen of this utility model.
[0020] Figure 4 This is a schematic diagram of the threshing drum of this utility model.
[0021] Explanation of reference numerals in the attached figures
[0022] 1. Receiving box;
[0023] 2. Threshing adjustment mechanism; 201. Fixed block; 202. Limiting groove; 203. Limiting slider; 204. Threshing drum; 205. Rotating motor; 206. Threaded slider; 207. Dual-shaft motor; 208. Rotating screw;
[0024] 3. Separation and adjustment components; 301. Separation screen; 302. Adjustable vibration motor; 303. Screen plate with the same aperture; 304. Pulling plate;
[0025] 4. Threshing drive assembly; 401. Drive motor; 402. Drive rotor; 403. Threshing cylinder; 404. Feed hopper;
[0026] 5. Support frame; 6. Extension plate; 7. Sliding rod; 8. Support leg; 9. Support base plate. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0028] Please see Figures 1-4 This utility model provides an adjustable rice threshing and separation device, including a receiving box 1, and a threshing adjustment mechanism 2 is provided above the receiving box 1;
[0029] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4The threshing adjustment mechanism 2 includes two fixed blocks 201, the bottom surface of which is fixedly connected to the upper surface of the receiving box 1. A dual-axis motor 207 is located on the back of one of the fixed blocks 201. The dual-axis motor 207 is an electric motor with two output shafts. This design allows the two shafts to rotate simultaneously or separately, providing greater mechanical connection and application flexibility. Two rotating screws 208 are located at the output end of the dual-axis motor 207. Two limiting grooves 202 are formed on the back of one of the fixed blocks 201, and a limiting slider 20 is slidably connected inside each limiting groove 202. 3. Each limiting slider 203 is rotatably connected to a threshing drum 204. Each threshing drum 204 is equipped with a rotating motor 205 at one end near the dual-shaft motor 207. Each rotating motor 205 is equipped with a threaded slider 206 on its outer surface. Two rotating screws 208 are threadedly connected to the inside of the two threaded sliders 206 respectively. The bottom surface of the receiving box 1 is equipped with two sets of support legs 8. Each set of support legs 8 is equipped with a support base plate 9 at its bottom end. The support structure composed of the two sets of support legs 8 and the support base plate 9 can stably support the adjustable rice threshing and separating equipment in the required position.
[0030] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 Below the threshing adjustment mechanism 2, a separation adjustment component 3 is provided, and above the separation adjustment component 3, a threshing drive component 4 is provided. The separation adjustment component 3 includes a separation screen 301, which is located above the receiving box 1. The upper surface of the receiving box 1 is provided with two sets of support frames 5, and the upper surface of the separation screen 301 is provided with two sets of extension plates 6. The bottom surfaces of the two sets of extension plates 6 are in contact with the upper surfaces of the two sets of support frames 5 respectively. The bottom surface of each set of extension plates 6 is movably hinged with a sliding rod 7. The two sets of sliding rods 7 are slidably connected to the inside of the two sets of support frames 5 respectively. Through the cooperation of the two sets of support frames 5 and extension plates 6, the sliding rods 7 can slide inside the support frames 5. The sliding rods 7 are movably hinged to the bottom surface of the extension plates 6, so that the separation screen 301 can be easily shaken on the receiving box 1 for screening processing.
[0031] Please refer to this carefully. Figure 3The bottom surface of the separating screen 301 is equipped with two sets of adjustable vibrating motors 302. Each vibrating motor has an adjustable eccentric block installed at each end of the rotor shaft. The motor obtains the excitation force by utilizing the centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks. The model of the vibrating motor is YZO-20-6. The separating screen 301 is internally connected to a screen plate 303 with the same aperture. The front of the screen plate 303 with the same aperture is provided with a pull plate 304. The back of the pull plate 304 is in contact with the front of the separating screen 301. By manually pulling the pull plate 304, the screen plate 303 with the same aperture can slide inside the separating screen 301. Since the screen holes of the screen plate 303 with the same aperture do not coincide with the screen holes of the separating screen 301, the screening diameter of the separating screen 301 can be easily adjusted.
[0032] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 The threshing drive assembly 4 includes a drive motor 401. The back of the drive motor 401 is fixedly connected to the front of another fixed block 201. The output end of the drive motor 401 is provided with a drive rod 402. The drive rod 402 is rotatably connected to the inside of the two fixed blocks 201. The drive rod 402 is rotated inside the two fixed blocks 201 by the power provided by the drive motor 401, thereby facilitating the drive of the equipment to thresh rice.
[0033] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 The outer surface of the drive rod 402 is provided with a threshing cylinder 403, and the outer surface of the threshing cylinder 403 is fixedly connected to a feeding hopper 404. The drive rod 402 drives the threshing cylinder 403 to rotate, which makes it convenient to manually transport rice from the feeding hopper 404 into the threshing cylinder 403, thereby further facilitating the processing of rice.
[0034] When using this utility model: First, connect the rotating motor 205, the dual-shaft motor 207, the adjustable vibration motor 302 and the drive motor 401 to the power supply. When it is necessary to use this adjustable rice threshing and separation equipment to thresh and separate rice, first use the support structure composed of two sets of support legs 8 and support base plate 9 to stably support the equipment in the required position.
[0035] Next, by controlling the power supply of the rotary motor 205 and the adjustable vibration motor 302, the rice to be processed can be manually transported from the feeding hopper 404 fixedly connected to the threshing cylinder 403 into its interior. The rotary motor 205 drives the threshing drum 204 to rotate inside the threshing cylinder 403. By controlling the power supply of the dual-axis motor 207, the dual-axis motor 207 can drive the two rotating screws 208 to rotate. Since the two rotating screws 208 are respectively threadedly connected to the two threaded sliders 206, the rotating screws 208 can drive the two threaded sliders 206 to move with the rotary motor 205, and the limiting slider 203 can slide along the inside of the limiting groove 202, thereby facilitating the adjustment of the distance between the two threshing drums 204.
[0036] The rotation speed of the threshing drum 204 driven by the rotating motor 205 can be controlled to adapt to different threshing needs and avoid rice damage caused by over-threshing. The rice can be threshed by the cooperation of the rotating threshing drum 204 and the drive rod 402. The threshed straw can be driven by the drive motor 401 to drive the drive rod 402 and the threshing drum 403 to rotate, so that the straw in the threshing drum 403 can be output through the feeding hopper 404, which is convenient for cleaning the straw.
[0037] Then, by controlling the power supply of the adjustable vibration motor 302, the separating screen 301 can be easily vibrated on the receiving box 1 to facilitate the screening of rice and straw in the separating screen 301. By manually pulling the pull plate 304, the screen plate 303 with the same aperture can slide inside the separating screen 301, thereby facilitating the adjustment of the screen aperture of the separating screen 301. Furthermore, by controlling the output power of the adjustable vibration motor 302, the aperture and vibration frequency of the separating screen 301 can be adjusted to optimize the separation effect and ensure the effective separation of rice and straw. Thus, the adjustable rice threshing and separation equipment can be used to thresh and separate rice.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable rice threshing and high-efficiency separating device, comprising a receiving box (1), characterized in that: The upper part of the receiving box (1) is provided with a threshing adjusting mechanism (2); The threshing adjusting mechanism (2) comprises two fixed blocks (201), the bottom surface of each fixed block (201) is fixedly connected with the upper surface of the receiving box (1), the back surface of one of the fixed blocks (201) is provided with a double-shaft motor (207), the output end of the double-shaft motor (207) is provided with two rotating screws (208), the back surface of the other fixed block (201) is provided with two limiting sliding grooves (202), the inside of each limiting sliding groove (202) is slidably connected with a limiting sliding block (203), the inside of each limiting sliding block (203) is rotatably connected with a threshing cylinder (204), one end of each threshing cylinder (204) close to the double-shaft motor (207) is provided with a rotating motor (205), the outer surface of each rotating motor (205) is provided with a threaded sliding block (206), and the two rotating screws (208) are respectively threadedly connected in the inside of the two threaded sliding blocks (206). The lower part of the threshing adjusting mechanism (2) is provided with a separation adjusting assembly (3), and the upper part of the separation adjusting assembly (3) is provided with a threshing driving assembly (4).
2. The adjustable high-efficiency rice threshing and separating device according to claim 1, characterized in that: The separation adjusting assembly (3) comprises a separation screen (301), the separation screen (301) is arranged above the receiving box (1), the bottom surface of the separation screen (301) is provided with two groups of adjustable vibration motors (302), the inside of the separation screen (301) is slidably connected with a same-aperture screen plate (303), the front surface of the same-aperture screen plate (303) is provided with a pulling plate (304), and the back surface of the pulling plate (304) is in contact with the front surface of the separation screen (301).
3. The adjustable high-efficiency rice threshing and separating device according to claim 1, characterized in that: The threshing driving assembly (4) comprises a driving motor (401), the back surface of the driving motor (401) is fixedly connected with the front surface of the other fixed block (201), the output end of the driving motor (401) is provided with a driving rotating rod (402), and the driving rotating rod (402) is rotatably connected in the inside of the two fixed blocks (201).
4. The adjustable high-efficiency rice threshing and separating device according to claim 3, characterized in that: The outer surface of the driving rotating rod (402) is provided with a threshing processing cylinder (403), and the outer surface of the threshing processing cylinder (403) is fixedly connected with a feeding hopper (404).
5. The adjustable high-efficiency rice hulling and separating device according to claim 1, characterized in that: The bottom surface of the receiving box (1) is provided with two groups of supporting legs (8), and the bottom end of each group of supporting legs (8) is provided with a supporting bottom plate (9).
6. The adjustable high-efficiency rice hulling and separating device according to claim 2, characterized in that: The upper surface of the receiving box (1) is provided with two groups of supporting frames (5), the upper surface of the separation screen (301) is provided with two groups of extension plates (6), the bottom surface of each group of extension plates (6) is respectively in contact with the upper surface of each group of supporting frames (5), and the bottom surface of each group of extension plates (6) is movably hinged with a sliding rod (7), and the two groups of sliding rods (7) are respectively slidably connected in the inside of the two groups of supporting frames (5).