A buffer separation screen

Abstract

The application discloses a buffering separation screen, which is an annular structure formed by sequentially connecting rubber chain plates through side convex connecting buckles, middle convex connecting buckles, side concave connecting buckles, middle concave connecting buckles and connecting pins. The rubber chain plate is formed by sequentially connecting a connecting belt, convex connecting buckles, concave connecting buckles, steel screen rod fixing buckles and a buffering screen rod assembly. The buffering screen rod assembly is provided with rod end flat heads at both ends of the steel screen rod, and the rod end flat heads are provided with fixing holes; and left, middle and right buffering rubber tubes are sequentially vulcanized and rubber-coated on the middle of the steel screen rod. The buffering screen rod assembly adopts the unique structure design of the 8-shaped buffering rubber tube, is a separation screen capable of being more flexible and harder on the basis of ensuring rigidity, greatly reduces the impact damage of crops in various operations such as separation and selection screening, effectively solves the need that the traditional structure cannot avoid damage in the separation and selection screening of agricultural products, and is an innovative separation screen structure.

Description

Technical Field

[0001] This invention relates to a separating screen, and more particularly to a buffer separating screen, belonging to the technical field of agricultural machinery industry. Background Technology

[0002] Separating screens are crucial components of agricultural machinery. Currently, most separating screens are made of metal rods, which can cause significant damage to harvested crops. While some improvements have involved coating the metal rods with rubber, these coatings still result in stiffness and some damage during crop separation. In early 2019, our company developed a "flexible separating screen bar" and applied for national utility model and invention patents (patent numbers 201920096686.7 and 201910047945.1 respectively). This bar replaces the rubber-coated screen rods for use in separating screens. Simultaneously, we also developed a "flexible separating screen" composed of "flexible screen plates" and applied for a national patent (patent number 201920431731.X). Both patented separating screens with their respective structures have demonstrated significant effectiveness after years of application and are suitable for separating different crops. However, with the development of agricultural production and the advancement of technology, more and more crops require mechanical harvesting and screening. This patent has been developed to create a "buffered separation screen" composed of "rubber chain plates". The design uses vulcanized hollow rubber tubes on the working surface to effectively buffer the harvested materials as they run on the screen surface. This makes it more suitable for separating and screening tubers, fruits and vegetables, and export-oriented agricultural products that are susceptible to damage from bumps, broken skin, and scratches. The device performs even better when assembled on agricultural machinery and can further improve the quality of the harvested materials. Market research has shown that there are no identical or similar products, making it a pioneering research and development product. Summary of the Invention

[0003] To address the aforementioned problems, the present invention aims to provide a buffer separation screen. This screen is composed of multiple buffer screen rod assemblies arranged at designed intervals on a rubber chain plate. The rubber chain plate is connected end-to-end by side-protruding connecting buckles, center-protruding connecting buckles, side-concave connecting buckles, center-concave connecting buckles, and connecting pins to form a ring structure, thus creating a flexible hollow buffer separation screen. The rubber chain plate is composed of buffer screen rod assemblies, connecting belts, connecting buckles, and fixing clips riveted together. The buffer screen rod assemblies (… Figure 5The key to this invention is the vertically vulcanized buffer rubber tube on a rigid screen rod with flat ends and fixing holes at both ends. The buffer rubber tube is hollow and figure-eight shaped, consisting of a left buffer rubber tube, a middle buffer rubber tube, and a right buffer rubber tube, all with the same structure. The lower end hole of the figure-eight shaped buffer rubber tube is fixed to the rigid screen rod through a vulcanization process, while the upper end is the other suspended end of the figure-eight hollow buffer rubber tube. This suspended end has shown excellent buffering effect in application. At the same time, after vulcanization and rubber coating on the rigid screen rod, it has the characteristics of wear resistance, corrosion resistance, and durability. The rubber chain plate is composed of three connecting belts: the upper ends of the left, middle, and right connecting belts are riveted to the buffer screen assembly via two side-protruding connecting buckles and one middle-protruding connecting buckle, respectively. The lower ends of the left, middle, and right connecting belts are connected to the buffer screen assembly via two side-concave connecting buckles and one middle-concave connecting buckle, respectively, using rivets. In the middle section of the left, middle, and right connecting belts, the buffer screen assembly is connected to the left and right connecting belts on both sides via fixing holes and rivets on the flat ends of the rods. The middle section is connected to the middle connecting belt via a rigid screen rod fixing clip. The hollow buffer separation screen developed in this study possesses characteristics such as rigidity, strength, wear resistance, corrosion resistance, and durability, while also exhibiting outstanding buffering effect, effectively solving the problem that traditional structures cannot meet the needs of non-damaging separation, sorting, and screening of agricultural products.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a buffer separation screen, which is composed of rubber chain plates and connecting pins. The rubber chain plates are connected in sequence by side convex connecting buckles, middle convex connecting buckles, side concave connecting buckles, middle concave connecting buckles and connecting pins to form a ring structure. The rubber chain plate is composed of a left connecting belt, a middle connecting belt, a right connecting belt, a side-protruding connecting buckle, a middle-protruding connecting buckle, a side-concave connecting buckle, a middle-concave connecting buckle, a rigid screen rod fixing clip, and a buffer screen rod assembly. At the upper ends of the left connecting belt, the middle connecting belt, and the right connecting belt, the left connecting belt is connected to the left end of the buffer screen rod assembly via a side-protruding connecting buckle, a rivet, and a fixing hole on the flat end of the left rod of the buffer screen rod assembly. The middle connecting belt is connected to the middle part of the buffer screen rod assembly via a middle-protruding connecting buckle, a rivet, and a middle buffer rubber tube on the buffer screen rod assembly. The right connecting belt is connected to the right end of the buffer screen rod assembly via a side-protruding connecting buckle, a rivet, and a fixing hole on the flat end of the right rod of the buffer screen rod assembly. Similarly, at the lower ends of the left, middle, and right connecting belts, the left connecting belt is connected to the left end of the buffer screen rod assembly via a side-concave connecting buckle, rivet, and fixing hole on the flat end of the left rod of the buffer screen rod assembly. The middle connecting belt is connected to the middle part of the buffer screen rod assembly via a middle-concave connecting buckle, rivet, and the middle buffer tube on the buffer screen rod assembly. The right connecting belt is connected to the right end of the buffer screen rod assembly via a side-concave connecting buckle, rivet, and fixing hole on the flat end of the right rod of the buffer screen rod assembly. Multiple buffer screen rod assemblies are sequentially connected in the middle of the left, middle, and right connecting belts. The left end of each buffer screen rod assembly is connected to the left connecting belt via fixing hole and rivet on its flat end. Similarly, the right end of each buffer screen rod assembly is connected to the right connecting belt via fixing hole and rivet on its flat end. The middle of the buffer screen rod assembly is connected to the middle connecting belt via a rigid screen rod fixing clip. The aforementioned buffer screen rod assembly has flat ends integrally formed at both ends of its rigid screen rod, with fixing holes on the flat ends. A left buffer rubber tube, a middle buffer rubber tube, and a right buffer rubber tube are sequentially vulcanized and rubber-coated in the middle of the rigid screen rod.

[0005] The beneficial effects of this invention are as follows: The developed figure-eight shaped buffer rubber tube has its lower end vulcanized and fixed to a rigid screen rod to form an integral rubber-coated structure, while the upper end is a buffer screen rod assembly composed of hollow rubber tubes. It features good buffering effect and flexibility. The buffer screen rod assembly is connected by a left connecting belt, a middle connecting belt, and a right connecting belt through side convex connecting buckles, middle convex connecting buckles, side concave connecting buckles, middle concave connecting buckles, and a rigid screen rod fixing buckle to form a rubber chain plate of a hollow buffer separation screen. The rubber chain plate is then connected into a ring buffer separation screen through side convex connecting buckles, middle convex connecting buckles, side concave connecting buckles, middle concave connecting buckles, and connecting pins. By driving the rotation, it completes various agricultural product operations such as separation, sorting, and screening. Due to the unique structure of the buffer screen rod assembly, the impact damage to crops during various operations such as separation, sorting, and screening is greatly reduced, effectively solving the problem that traditional structures cannot meet the needs of agricultural product separation, sorting, and screening where damage is unavoidable. The buffer separation screen adopts a ring structure composed of two or more rubber chain plates connected end to end. The number of rubber chain plates connected can be selected according to the required length, and the width can be set according to the length of the buffer screen rod assembly. It can be long or short, wide or narrow. It is an innovative separation screen structure that can be more flexible yet firm while ensuring rigidity. It can improve social and economic benefits, meet the needs of domestic agricultural production and export earnings, and has broad application value. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0007] Figure 1 This is a schematic diagram of the structure of a buffer separation sieve according to the present invention.

[0008] Figure 2 yes Figure 1 Schematic diagram of rubber chain plate structure.

[0009] Figure 3 yes Figure 2 A schematic diagram of the structure viewed from below.

[0010] Figure 4 yes Figure 2 A-A sectional view of the structure.

[0011] Figure 5 yes Figure 2 A schematic diagram of the buffer screen assembly structure.

[0012] Figure 6 yes Figure 5 A schematic diagram of the attached structure.

[0013] Figure 7 yes Figure 6 A side view structural diagram.

[0014] Figure 8 yes Figure 6 Schematic diagram of the B-B cross-sectional structure.

[0015] Figure 9 yes Figure 2 A schematic diagram of the rigid screen rod fixing clip structure.

[0016] Figure 10 yes Figure 9 A side view structural diagram.

[0017] Figure Labels

[0018] 1. Left connecting strap 2. Middle connecting strap 3. Right connecting strap 4. Side protruding connecting buckle 5. Middle protruding connecting buckle 6. Side concave connecting buckle 7. Middle concave connecting buckle 8. Rigid screen rod fixing clip 9. Buffer screen rod assembly 10. Rigid screen rod 11. Left buffer rubber tube 12. Middle buffer rubber tube 13. Right buffer rubber tube 14. Flat end of rod 15. Fixing hole 20. Rubber chain plate 21. Connecting pin. Detailed Implementation

[0019] Please see Figures 1 to 10A buffer separation screen is composed of a rubber chain plate 20 and a connecting pin 21. The rubber chain plate 20 is connected in sequence by a side protruding connecting buckle 4, a middle protruding connecting buckle 5, a side concave connecting buckle 6, a middle concave connecting buckle 7, and a connecting pin 21 to form an annular structure. The rubber chain plate 20 is composed of a left connecting belt 1, a middle connecting belt 2, a right connecting belt 3, a side-protruding connecting buckle 4, a middle-protruding connecting buckle 5, a side-concave connecting buckle 6, a middle-concave connecting buckle 7, a rigid screen rod fixing clip 8, and a buffer screen rod assembly 9. At the upper ends of the left connecting belt 1, the middle connecting belt 2, and the right connecting belt 3, the left connecting belt 1 is connected to the left end of the buffer screen rod assembly 9 via the side-protruding connecting buckle 4, rivets, and fixing holes 15 on the left end flat head 14 of the buffer screen rod assembly 9. The middle connecting belt 2 is connected to the middle part of the buffer screen rod assembly 9 via the middle-protruding connecting buckle 5, rivets, and the middle buffer rubber tube 12 on the buffer screen rod assembly 9. The right connecting belt 3 is connected to the right end of the buffer screen rod assembly 9 via the side-protruding connecting buckle 4, rivets, and fixing holes 15 on the right end flat head 14 of the buffer screen rod assembly 9. Similarly, at the lower ends of the left connecting belt 1, the middle connecting belt 2, and the right connecting belt 3, the left connecting belt 1 is connected to the left end of the buffer screen assembly 9 via a side concave connecting buckle 6, a rivet, and a fixing hole 15 on the left end flat head 14 of the buffer screen assembly 9. The middle connecting belt 2 is connected to the middle part of the buffer screen assembly 9 via a middle concave connecting buckle 7, a rivet, and a middle buffer rubber tube 12 on the buffer screen assembly 9. The right connecting belt 3 is connected to the right end of the buffer screen assembly 9 via a side concave connecting buckle 6, a rivet, and a fixing hole 15 on the right end flat head 14 of the buffer screen assembly 9. Multiple buffer screen rod assemblies 9 are sequentially connected in the middle of the left connecting band 1, the middle connecting band 2, and the right connecting band 3. The left end of each buffer screen rod assembly 9 is connected to the left connecting band 1 via a fixing hole 15 on its flat end 14 and a rivet. Similarly, the right end of each buffer screen rod assembly 9 is connected to the right connecting band 3 via a fixing hole 15 on its flat end 14 and a rivet. The middle of each buffer screen rod assembly 9 is clamped and connected to the middle connecting band 2 by a rigid screen rod fixing clip 8. Each buffer screen rod assembly 9 has a flat end 14 integrally formed at both ends of its rigid screen rod 10, with fixing holes 15 on the flat end 14. A left buffer rubber tube 11, a middle buffer rubber tube 12, and a right buffer rubber tube 13 are sequentially vulcanized and rubber-coated in the middle of the rigid screen rod 10.

Claims

1. A buffer separation screen, comprising a rubber chain plate and connecting pins, characterized in that: The rubber chain plate (20) is connected in sequence by the side protruding connecting buckle (4), the middle protruding connecting buckle (5), the side concave connecting buckle (6), the middle concave connecting buckle (7), and the connecting pin (21) to form a ring structure; The rubber chain plate (20) is composed of a left connecting belt (1), a middle connecting belt (2), a right connecting belt (3), a side convex connecting buckle (4), a middle convex connecting buckle (5), a side concave connecting buckle (6), a middle concave connecting buckle (7), a rigid screen rod fixing clip (8), and a buffer screen rod assembly (9). At the upper ends of the left connecting belt (1), the middle connecting belt (2), and the right connecting belt (3), the left connecting belt (1) is connected by a side convex connecting buckle (4), a rivet, and a fixing hole (15) on the flat end (14) of the left end of the buffer screen rod assembly (9). The left end of the buffer screen assembly (9) is connected to the middle end of the buffer screen assembly (9) via the middle convex connecting buckle (5), rivets, and the middle buffer rubber tube (12) on the buffer screen assembly (9). The right connecting belt (3) is connected to the right end of the buffer screen assembly (9) via the side convex connecting buckle (4), rivets, and the fixing hole (15) on the right end flat head (14) of the buffer screen assembly (9). At the lower ends of the left connecting belt (1), the middle connecting belt (2), and the right connecting belt (3), the left connecting belt (1) is connected to the right end of the buffer screen assembly (9) via the side concave... The connecting buckle (6), rivet, and fixing hole (15) on the left end flat head (14) of the buffer screen rod assembly (9) are connected to the left end of the buffer screen rod assembly (9). The middle connecting strip (2) is connected to the middle part of the buffer screen rod assembly (9) through the middle concave connecting buckle (7), rivet, and middle buffer rubber tube (12) on the buffer screen rod assembly (9). The right connecting strip (3) is connected to the right end of the buffer screen rod assembly (9) through the side concave connecting buckle (6), rivet, and fixing hole (15) on the right end flat head (14) of the buffer screen rod assembly (9). Connect; multiple buffer screen rod assemblies (9) are sequentially connected in the middle of the left connecting strip (1), the middle connecting strip (2), and the right connecting strip (3). The left end of the buffer screen rod assembly (9) is connected to the left connecting strip (1) through the fixing hole (15) on its rod end flat head (14) and the rivet. The right end of the buffer screen rod assembly (9) is connected to the right connecting strip (3) through the fixing hole (15) on its rod end flat head (14). The middle of the buffer screen rod assembly (9) is clamped and connected to the middle connecting strip (2) by a rigid screen rod fixing clip (8). The buffer screen rod assembly (9) has a steel screen rod (10) with flat ends (14) integrally provided at both ends. A fixing hole (15) is provided on the flat ends (14). A left buffer rubber tube (11), a middle buffer rubber tube (12), and a right buffer rubber tube (13) are connected in sequence in the middle of the steel screen rod (10) by vulcanization and rubber coating. The left buffer tube (11), the middle buffer tube (12) and the right buffer tube (13) have the same structure and are all hollow figure-eight shaped. The lower end hole of the figure-eight shaped buffer tube is fixed to the rigid screen rod (10) by vulcanization process, and the upper end is the other suspended end of the figure-eight shaped hollow buffer tube.

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