阅读说明：本技术 一种联合收割机割台主体 (Header main body of combine harvester ) 是由 陈平录 熊志鹏 许静 刘木华 于 2020-07-27 设计创作，主要内容包括：本发明涉及一种农业机械部件,具体地涉及一种具有水稻干燥功能的联合收割机割台主体。一种联合收割机割台主体,包括割台主框架,还包括干燥机构,干燥机构包括热风装置和进风装置,热风装置安装在割台主框架下端,割刀切断的水稻铺倒在热风装置上表面进行干燥；进风装置设置在割台主框架后端,用于连通送风机构与热风装置；在割台主框架的后端还设置有水稻输送出口,被热风装置干燥后的水稻通过水稻输送出口进入水稻输送器。本发明具有如下优点：1、解决高湿水稻机收出现的收割机输送机构和脱粒清选装置堵塞的问题,降低了稻谷的发芽霉变率,大大提高了生产效率。2、结构简单,安装方便,成本低。(The invention relates to an agricultural machine part, in particular to a header main body of a combine harvester with a rice drying function. A header main body of a combine harvester comprises a header main frame and a drying mechanism, wherein the drying mechanism comprises a hot air device and an air inlet device, the hot air device is arranged at the lower end of the header main frame, and rice cut by a cutting knife is laid on the upper surface of the hot air device for drying; the air inlet device is arranged at the rear end of the header main frame and is used for communicating the air supply mechanism with the hot air device; the rear end of the header main frame is also provided with a rice conveying outlet, and rice dried by a hot air device enters a rice conveyor through the rice conveying outlet. The invention has the following advantages: 1. solves the problem that a harvester conveying mechanism and a threshing and cleaning device are blocked when a high-humidity rice machine collects rice, reduces the germination mildew rate of the rice and greatly improves the production efficiency. 2. Simple structure, convenient installation and low cost.)

1. A combine header main part, includes header main frame, its characterized in that: the rice cutting machine also comprises a drying mechanism, wherein the drying mechanism comprises a hot air device and an air inlet device, the hot air device is arranged at the lower end of the header main frame, and rice cut by the cutting knife is laid on the upper surface of the hot air device for drying; the air inlet device is arranged at the rear end of the header main frame and is used for communicating the air supply mechanism with the hot air device; the rear end of the header main frame is also provided with a rice conveying outlet, and rice dried by a hot air device enters a rice conveyor through the rice conveying outlet.

2. A combine harvester header body as in claim 1, wherein: the left end, the right end and the rear end of the hot air device are fixed with the header main frame, the bottom surface of the hot air device is parallel to the horizontal plane, a certain included angle is formed between the upper surface and the bottom surface, and the front end of the hot air device is the vertex of the included angle.

3. A combine harvester header body as in claim 2, wherein: the rear end of the hot air device is provided with an air inlet which is vertically arranged and communicated with the air inlet device; the upper surface of the hot air device is provided with a plurality of air outlets, and the air outlets and the air inlets are superposed and communicated in the vertical direction.

4. A combine harvester header body as in claim 2, wherein: the included angle is 2-10 degrees.

5. A combine harvester header body as in claim 1, wherein: the air inlet device comprises a hot air pipe inlet and a plurality of hot air pipe outlets, and the hot air pipe inlet is communicated with the hot air pipe outlets; the outlet of the hot air pipe is communicated with a hot air device.

6. A combine harvester header body according to claim 5, wherein: and a limiting strip is arranged right below the outlet of the hot air pipe.

7. A combine harvester header body as in claim 1, wherein: the drying mechanism further comprises a flow guide cover, and the flow guide cover is installed at the upper end of the header main frame through a connecting piece.

8. A combine harvester header body according to claim 7, wherein: the pod cross-section consists of a rectangle and an arcuate face of 1/4.

9. A combine harvester header body according to claim 7 or 8, wherein: the projection width of the air guide sleeve in the horizontal direction is not less than the width of the hot air device in the horizontal direction, and the end part of the air guide sleeve is not contacted with the reel.

10. A combine harvester header body as in claim 1, wherein: the cutting knife is installed at the front end of the header main frame, shaft holes are formed in the left end and the right end of the header main frame respectively and used for supporting and connecting the header auger, a plurality of annular bolt holes are formed in the left end of the header main frame in a surrounding mode, and the annular bolt holes are used for fixing a single-port bearing of the header auger.

Technical Field

The invention relates to an agricultural machine part, in particular to a header main body of a combine harvester with a rice drying function.

Background

As is known, China is a big agricultural country, and according to statistics, the total yield of rice is about 4000 jin each year, but only because the harvesting time is not good, the rice can not be dried in time, and the problems of mildew, worm growth and the like of about 200 jin of grains are caused. Particularly, in the areas where rice is mainly produced in the south of the Yangtze river in China, rain and fog often appear in the rice harvesting season. In the rice main production areas of China, such as east China and south China, the humidity of rice in the rice harvesting season is high, rain and fog weather is frequent, and the rice is in a high-humidity state in the rain and fog weather. When the machine is in rainy and foggy weather, the machine can only be stopped for waiting, and the time for collecting the machine is delayed. Chinese patent No. CN109076778A discloses a cutting table auger for preventing blockage and twisting of a combine harvester, but it cannot dry wet rice and can only solve the blockage problem. Chinese patent No. CN110089264A discloses a drying grain tank of a combine harvester, which dries harvested grains by a heating device, cannot dry wet rice before harvesting, and cannot solve the problem of blockage of the machine for harvesting the wet rice.

Disclosure of Invention

The invention aims to solve the problem that rice cannot be harvested in a wet state in rainy and foggy days and properly dry the rice to slow down the mildew phenomenon of the rice, thereby providing a header main body of a combine harvester with a rice drying function,

in order to achieve the purpose, the invention adopts the following technical scheme: a header main body of a combine harvester comprises a header main frame and a drying mechanism, wherein the drying mechanism comprises a hot air device and an air inlet device, the hot air device is arranged at the lower end of the header main frame, and rice cut by a cutting knife is laid on the upper surface of the hot air device for drying; the air inlet device is arranged at the rear end of the header main frame and is used for communicating the air supply mechanism with the hot air device; the rear end of the header main frame is also provided with a rice conveying outlet, and rice dried by a hot air device enters a rice conveyor through the rice conveying outlet.

Preferably, the left end, the right end and the rear end of the hot air device are fixed with the header main frame, the bottom surface of the hot air device is parallel to the horizontal plane, a certain included angle is formed between the upper surface and the bottom surface, and the front end of the hot air device is the vertex of the included angle.

Preferably, the rear end of the hot air device is provided with an air inlet which is vertically arranged and communicated with the air inlet device; the upper surface of the hot air device is provided with a plurality of air outlets, and the air outlets and the air inlets are superposed and communicated in the vertical direction.

Preferably, the included angle is 2 to 10 degrees.

Preferably, the air inlet device comprises a hot air pipe inlet and a plurality of hot air pipe outlets, and the hot air pipe inlet is communicated with the hot air pipe outlets; the outlet of the hot air pipe is communicated with a hot air device.

Preferably, a limiting strip is arranged right below the outlet of the hot air pipe.

Further, the drying mechanism further comprises a flow guide cover, and the flow guide cover is installed at the upper end of the header main frame through a connecting piece.

Preferably, the pod cross-section is comprised of rectangular and 1/4 arc-shaped faces.

Preferably, the projection width of the air guide sleeve in the horizontal direction is not less than the width of the hot air device in the horizontal direction, and the end part of the air guide sleeve does not contact with the reel.

Preferably, the cutting knife is installed at the front end of the header main frame, shaft holes are formed in the left end and the right end of the header main frame respectively and used for supporting and connecting the header auger, a plurality of annular bolt holes are formed in the left end of the header main frame in a surrounding mode, and the annular bolt holes are used for fixing a single-port bearing of the header auger.

The working principle is as follows: the invention designs a hot air device, an air inlet device and a flow guide cover, hot air enters the hot air device through a hot air pipe inlet and is discharged from a hot air outlet on the upper surface of the hot air device at a high speed, and uniform high-temperature and high-speed hot air flow is formed in a header main body. The diversion cover arranged at the upper end of the header main frame blocks the dissipation of hot air flow, so that vortex hot air flow is formed at the upper end of the hot air device and the lower end of the diversion cover to dry the high-humidity rice, the problem that a harvester conveying mechanism and a threshing and cleaning device are blocked when the high-humidity rice machine collects the high-humidity rice is solved, the germination mildew rate of the rice is reduced, and the production efficiency is greatly improved.

Compared with the prior art, the invention has the following advantages:

1. solves the problem that a harvester conveying mechanism and a threshing and cleaning device are blocked when a high-humidity rice machine collects rice, reduces the germination mildew rate of the rice and greatly improves the production efficiency.

2. Simple structure, convenient installation and low cost.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a left side view of the overall structure of an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of the present invention;

FIG. 4 is a schematic view of the air inlet duct assembly of FIG. 3;

FIG. 5 is a partial schematic view of the air inlet duct assembly of FIG. 4;

FIG. 6 is a schematic view of the hot blast chamber of FIG. 3;

FIG. 7 is a schematic view of the pod configuration of FIG. 3;

FIG. 8 is a schematic view of the support frame of FIG. 3;

in the figure, 1, a header main frame; 2. a hot air cavity; 3. a pod; 4. a support frame; 5. an air inlet pipe assembly; 6. a bolt; 7. a fixed support; 8. an inlet of the hot air pipe; 9. an outlet of the hot air pipe; 10. a limiting strip; 11. bolt holes; 12. an air inlet of the hot air cavity; 13. bolt holes; 14. an air outlet of the hot air cavity; 15. bolt holes; 16. bolt holes; 17. bolt holes; 18. a shaft hole; 19. a rice delivery outlet; 20. bolt holes; 21. a rice conveyor.

Detailed Description

In the description of the present invention, it should be noted that the terms "bottom", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The invention will be further described with reference to the accompanying figures 1 to 8: a header main body of a combine harvester is shown in figures 1-3 and comprises a header main frame 1, a flow guide cover 3, a hot air cavity 2 and an air inlet pipe assembly 5. The upper end of the header main frame 1 is provided with a flow guide cover 3 and a support frame 4, the corresponding positions of the flow guide cover 3 and the support frame 4 are respectively provided with a plurality of bolt holes 15 and 16, and the other end of the support frame 4 is fixedly arranged on the header main frame 1 through a fixed support 7 through bolts 6. The fixed hot-blast chamber 2 that is equipped with of header main frame 1's lower extreme, the rear end is equipped with rice and carries export 19, air-supply line assembly 5, rice is carried export 19 periphery and is equipped with a plurality of bolt hole 20, through bolt 6 and rice conveyer 21 fixed connection, hot-blast chamber 2 upper surface adopts the perforated plate to form a plurality of hot-blast chamber air outlets 14, the hot-blast chamber air intake 12 of rear end design and bolt hole 13, air-supply line assembly 5 is equipped with a hot-blast main pipe import 8, a plurality of hot-blast main pipe export 9, bolt hole 11 and spacing 10, hot-blast main pipe export 9 passes through bolt hole 11 with hot-blast chamber air intake 12, 13 is with bolt 6 fixed. Cutting knife is installed to header main frame 1 front end, and both ends are equipped with shaft hole 18 respectively about for support connection header screw feeder, wherein the left end is equipped with a plurality of ring bolt hole 17, is used for fixed header screw feeder list mouthful bearing.

As shown in fig. 6, in order to ensure sufficient space of the hot air cavity, the hot air volume is large, and a better drying effect can be achieved. The plane of the hot air cavity outlet 14 is at a certain included angle with the horizontal plane, the included angle is 2-10 degrees, the hot air cavity inlet 12 is vertically arranged, a certain coincident surface is arranged in the vertical direction with the plane of the hot air cavity outlet 14, and the bottom surface of the hot air cavity 2 is coincident with the horizontal plane.

In order to ensure that hot air uniformly enters the hot air cavity 2, the air inlet pipe assembly 5 is provided with a total hot air pipe inlet 8 and a plurality of hot air pipe outlets 9. The limiting strip 10 of the air inlet pipe assembly 5 is positioned right below the hot air pipe outlet 9 and is positioned on the same vertical plane with the hot air pipe outlet 9, and the bolt hole 11 and the hot air pipe outlet 9 are not positioned on the same vertical plane, so that the movement of the air inlet pipe assembly 5 is limited.

As shown in fig. 4-5 and 8, the cross section of the air guide sleeve 3 is a cross section consisting of a rectangle and an 1/4 arc-shaped surface. The upper end surface of the air guide sleeve 3 with a rectangular cross section and corresponding to the lower end surface of the support frame 4 are superposed and in gapless contact, and the fixed connection is strengthened. Compared with other structural forms, the arc-shaped air guide sleeve has a remarkable advantage and can enable hot air to form a vortex type hot air flow.

As shown in fig. 7, in order to ensure that the hot air blown out from the hot air cavity can be blocked by the air guide sleeve to form a vortex type hot air flow, the projection width of the air guide sleeve 3 in the horizontal direction is not less than the width of the hot air cavity 2 in the horizontal direction, but not too large, otherwise, the air guide sleeve can contact the reel to hinder the movement of the reel.

The working principle is as follows: when the header reaps high humidity rice, the rice is pressed down by the reel, is cut off by the cutting knife of installing in header main frame 1 front end simultaneously and then is spread on hot-blast chamber 2 upper surface, rotates along with the bearing and drives the screw feeder and rotate, and the rice receives the effect of screw feeder blade and is carrying out from left right end gathering motion again when hot-blast chamber upper surface moves forward, carries out 19 outputs from the rice at last, gets into combine's rice conveyer 21. During the whole process of rice movement in the header main body, hot air enters the hot air cavity 2 from the air inlet pipe assembly 5 and is blown out from the hot air cavity air outlet 14, the blown high-temperature and high-speed hot air firstly dries the rice and then diffuses from the upper surface of the rice, and meanwhile, the air guide sleeve 3 blocks the dissipation of the hot air, so that vortex hot air flow is formed at the lower end of the air guide sleeve 3 at the upper end of the hot air cavity 2 to carry out hot air drying on the high-humidity rice again. Thereby solving the problem that a harvester conveying mechanism and a threshing and cleaning device are blocked when the high-humidity rice machine collects the rice and reducing the germination mildew rate of the rice.

The above disclosure is only for the purpose of illustrating preferred embodiments of the present invention and is not to be construed as limiting the invention. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.