A feeding device of a horizontal header semi-feed rice harvester

Abstract

The utility model discloses a horizontal rice harvester's feeding device, including horizontal header and with the conveying groove of connection, the main clamping chain is equipped in the conveying groove, and the auxiliary clamping chain is equipped with at the straw outlet of horizontal header, be equipped with the rice ear conveying belt with the poking tooth on the horizontal header, and its output end extends to the below of main clamping chain, feeding wheel and auxiliary clamping chain, and main clamping chain is connected with auxiliary clamping chain through feeding wheel, transmission shaft and feeding wheel, and feeding wheel obtains power from main clamping chain through transmission shaft. The utility model discloses horizontal header and double clamping chain structure, and combines arc-shaped conveying groove and stem and ear shunt design, realizes the stable conveying of rice ear part, and significantly reduces the grain loss rate, keeps the rice stem complete, has simple structure, low energy consumption, strong adaptability and the advantages such as.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a feeding device for a horizontal header semi-feeding rice harvester. Background Technology

[0002] Rice is a vital food crop in my country and worldwide, and the level of mechanization in its harvesting process directly impacts agricultural production efficiency and food security. Currently, in the main rice-producing areas of southern my country, most harvesting machinery uses a horizontal header with a full-feed structure. If a vertical header were used, it would present the following significant problems during operation: First, because the vertical header provides higher support to the rice plants, the panicles are prone to violent shaking and collisions during transport, leading to grain detachment. This is especially problematic when rice maturity varies or field humidity is high, resulting in even greater harvest losses. A horizontal header can recover the threshed grains. Second, while the existing full-feed harvesters use a spiral auger conveyor system with high feeding efficiency, it indiscriminately crushes and pulls the rice stalks, resulting in broken stalks after threshing, making them difficult to recycle. Furthermore, these systems are heavy, costly to manufacture, and consume enormous power.

[0003] To address the aforementioned issues, semi-feeding harvesting technology has emerged, aiming to separate the stalks from the panicles and maintain stalk integrity. However, existing semi-feeding harvester feeding devices are mostly based on vertical headers, which lack sufficient stability in holding the rice plants, easily leading to panicle disorder and asynchronous holding and conveying, ultimately resulting in grain loss. This does not fundamentally solve the problems of threshing loss and high power consumption. Therefore, there is an urgent need in this field for a feeding device with a reasonable structural design, stable and reliable conveying, significantly reduced threshing loss, and applicability to horizontal headers, in order to improve the overall quality and economy of rice harvesting. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a feeding device for a horizontal header semi-feeding rice harvester, which can effectively reduce the loss of rice grains during the harvesting process; it is also a lightweight, simplified, efficient, energy-saving, and easy-to-maintain feeding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a feeding device for a horizontal header semi-feeding rice harvester, comprising a conveying trough and a horizontal header, wherein the conveying trough is fixedly connected to the horizontal header; a main clamping chain is provided in the conveying trough, and an auxiliary clamping chain is provided at the straw outlet of the horizontal header; a rice ear conveyor belt is also provided on the horizontal header, and teeth are installed on the rice ear conveyor belt, one end of which extends to below the main clamping chain, the feeding wheel, and the auxiliary clamping chain; the main clamping chain is connected through the feeding wheel, the transmission shaft, and the auxiliary clamping chain, and the feeding wheel obtains power from the main clamping chain through the transmission shaft.

[0006] Specifically, the rice conveyor belt is supported and driven by multiple pulleys.

[0007] Specifically, the rice ear conveyor belt is arranged between the main clamping chain and the platform of the horizontal cutting table.

[0008] Specifically, one end of the transmission shaft is connected to the main clamping chain, and the other end of the transmission shaft is on the auxiliary clamping chain, the power of which is transmitted from the main clamping chain.

[0009] Specifically, the circumference of the feeding wheel is provided with multiple telescopic levers and a chain for guiding the rice panicles into the auxiliary clamping chain.

[0010] Specifically, the conveying trough has an arc shape.

[0011] Specifically, the rice ear conveyor belt is driven independently by the header power or the first motor, and the feeding wheel and auxiliary clamping chain are driven by the engine transmission device or the second motor; the first motor and the second motor are respectively connected to the corresponding drive wheel through belt drive and are installed on the upper part of the horizontal header and the conveying trough.

[0012] Through the above technical solution, this utility model has the following significant advantages and beneficial effects: 1. This structure adopts a horizontal header combined with a conveyor trough and a double clamping chain, which completely eliminates the complex and cumbersome transmission system of traditional full-feed harvesters, significantly reduces the number of parts, lowers the weight and manufacturing cost of the whole machine, simplifies the maintenance procedures, and improves the working reliability of the whole machine.

[0013] 2. This structure features a "stem-ear diversion" design, where the main clamping chain is dedicated to clamping and conveying the stalks, and the rice ear conveyor belt is dedicated to supporting and conveying the ears. Combined with a feeding wheel with a telescopic rod and an arc-shaped conveying trough, it achieves gentle, continuous, and stable conveying of the rice ears, completely avoiding ear disorder and pulling phenomena, and preventing blockage of the header and feeding inlet. This minimizes the ear grain loss rate during the feeding process and significantly improves harvest quality.

[0014] 3. The arc-shaped conveyor trough and the feed wheel with telescopic rod design greatly enhance the adaptability to different varieties, moisture levels, and maturity levels of rice materials. The feeding is continuous and stable, and it is not easy to clog. This effectively improves the harvester's operating efficiency and maneuverability in complex field conditions.

[0015] 4. This structure uses a header power or a first motor to independently drive the rice ear conveyor belt, and an engine or a second motor to independently drive the feeding wheel and auxiliary clamping chain. The power transmission path is clear, direct and efficient, avoiding unnecessary power loss, which is in line with the design trend of lightweight and energy-saving and environmentally friendly modern agricultural machinery.

[0016] 5. The entire device has a reasonable layout and high space utilization. After being conveyed by the main clamping chain, the stalks are not caught in the threshing device, thus ensuring the integrity and cleanliness of the rice stalks after threshing, which facilitates subsequent collection, baling, or return to the field, achieving good economic and environmental benefits. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] The components in the diagram are labeled as follows: 1. Horizontal header; 2. Rice ear conveyor belt; 3. Main clamping chain; 4. Feed wheel; 5. Auxiliary clamping chain; 6. Transmission shaft; 7. Conveying trough; 8. Pulley; 9. Gear. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0020] like Figure 1 As shown, the feeding device of a horizontal header semi-feeding rice harvester provided by this utility model is mainly composed of a horizontal header 1, a conveying trough 7, a toothed tooth 9, a main clamping chain 3, a rice ear conveyor belt 2, a feeding wheel 4, an auxiliary clamping chain 5, a transmission shaft 6, and multiple pulleys 8.

[0021] The horizontal header 1 is horizontally arranged at the front of the machine, and its front end is used to receive rice plants cut by the cutter. The conveying trough 7 is a straight, long trough that connects to the upper area of ​​the horizontal header 1. The main clamping chain 3 is installed inside it. This main clamping chain 3 typically consists of a chain and L-shaped clamping teeth (or clamping fingers) fixedly installed on it at specified intervals. The spacing of the clamping teeth can be adaptively adjusted according to the thickness of the rice plants. The front end of the main clamping chain 3 (i.e., Figure 1 The left end shown extends to the stem inlet of the horizontal header 1, its function being to firmly clamp the base of the rice plant stem fed from the header and move it backward at a stable speed (i.e., Figure 1(As shown on the right) conveying.

[0022] The rice ear conveyor belt 2 is laid on the upper surface of the horizontal header 1 and is located below the main clamping chain 3, that is, between the main clamping chain 3 and the platform of the horizontal header 1, forming a layered operation layout. The surface of the rice ear conveyor belt 2 is usually provided with rubber bumps or toothed structures to increase friction and prevent the ears of rice from slipping off. The right end (output end) of the conveyor belt extends and is suspended above the inlet end of the conveying trough 7. Multiple pulleys 8 are arranged inside the rice ear conveyor belt 2, serving to support, tension, and drive and guide. At least one of the drive pulleys 8 is connected to the output shaft of the header drive shaft by means of a key connection or other means.

[0023] The conveying trough 7 is an arc-shaped trough, the curvature of which adapts to the natural movement trajectory of the rice panicles after they leave the conveyor belt. The inlet end of the conveying trough 7 receives the rice panicles from the rice panicle conveyor belt 2, and the outlet end leads to the threshing device (such as the threshing drum, not shown in the figure). This arc-shaped design is not decorative; its curvature has been calculated to perfectly follow the natural projection trajectory of the panicles after they leave the conveyor belt, greatly reducing material impact and blockage. The conveying trough 7 is equipped with the feeding wheel 4 and the conveying shaft 6. Multiple cylindrical telescopic rods are evenly embedded on the circumference of the feeding wheel 4. These telescopic rods can effectively insert and grip the rice stalks, achieving reliable clamping. The conveying shaft 6 connects the main clamping chain 3 and the auxiliary clamping chain 5 through bearing seats and other structures, and transmits the power of the main clamping chain 3 to the auxiliary clamping chain 5. The main clamping chain 3 clamps the rice panicles, the auxiliary clamping chain releases the rice panicles onto the conveying trough 7, and the main clamping chain 3 continues to clamp and deliver them to the threshing drum. Components not described in detail in this utility model, such as the belt tensioning mechanism and the motor mounting base, are implemented using conventional techniques in the field and are not part of the innovation of this utility model.

[0024] The working principle of this utility model is as follows: During operation, the rice plants cut by the header lie flat on the horizontal header 1. The roots and stems of the plants are fed under the feed wheel 4 and pulled into the two main clamping chains 3. The two clamping chains 3 then clamp and send the rice to the conveying trough 7. The auxiliary clamping chain 5 conveys the rice ears into the conveying trough 7. The main clamping chains 3 continue to clamp and send the rice to the threshing drum for threshing. The function of the double clamping chains is to prevent the rice ears sent by the rice ear conveyor belt 2 from being missed and blocked at the inlet, thus stopping the operation.

[0025] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A feeding device for a horizontal header semi-feeding rice harvester, comprising a conveying trough (7), characterized in that: It also includes a horizontal header (1), the conveying trough (7) is fixedly connected to the horizontal header (1); a main clamping chain (3) is provided in the conveying trough (7), and an auxiliary clamping chain (5) is provided at the straw outlet of the horizontal header (1); a rice ear conveyor belt (2) is also provided on the horizontal header (1), and a toothed tooth (9) is installed on the rice ear conveyor belt (2). One end of the rice ear conveyor belt (2) extends to the bottom of the main clamping chain (3), the feeding wheel (4) and the auxiliary clamping chain (5); the main clamping chain (3) is connected to the feeding wheel (4), the transmission shaft (6) and the auxiliary clamping chain (5), and the feeding wheel (4) obtains power from the main clamping chain (3) through the transmission shaft (6).

2. The feeding device of a horizontal header semi-feeding rice harvester according to claim 1, characterized in that: The rice conveyor belt (2) is supported and driven by multiple pulleys (8).

3. The feeding device of a horizontal header semi-feeding rice harvester according to claim 1, characterized in that: The rice ear conveyor belt (2) is arranged between the main clamping chain (3) and the platform of the horizontal cutting table (1).

4. The feeding device of a horizontal header semi-feeding rice harvester according to claim 1, characterized in that: One end of the transmission shaft (6) is connected to the main clamping chain (3), and the other end of the transmission shaft (6) is on the auxiliary clamping chain (5). The power of the auxiliary clamping chain (5) is transmitted by the main clamping chain (3).

5. The feeding device of a horizontal header semi-feeding rice harvester according to claim 1, characterized in that: The feeding wheel (4) is provided with multiple radially extendable levers around its circumference, which are used to guide the rice panicle into the auxiliary clamping chain (5).

6. The feeding device of a horizontal header semi-feeding rice harvester according to claim 1, characterized in that: The conveying trough (7) has an arc shape.

Images