Regenerated rice harvesting platform and regenerated rice combine harvester

Abstract

A regenerated rice harvesting platform and a regenerated rice combine harvester, belonging to the technical field of regenerated rice combine harvesters. The utility model includes a harvesting platform frame, a reed wheel arranged above the front of the harvesting platform frame, a reciprocating cutter arranged at the entrance of the harvesting platform frame, a harvesting platform spiral auger arranged at the rear of the harvesting platform frame, a left grain divider and a right grain divider arranged on both sides of the entrance of the harvesting platform frame, a reed wheel supporting oil cylinder arranged on both sides of the harvesting platform frame, and a transmission mechanism arranged on one side of the harvesting platform frame. The working width of the harvesting platform between the left grain divider and the right grain divider is less than or equal to 2.5 meters. The regenerated rice harvesting platform is used in conjunction with a crawler-type walking chassis, and the crawler-type walking chassis includes a left crawler and a right crawler, and the width of each crawler is less than or equal to 280 mm. The utility model can effectively meet the use needs of small plots in hilly and mountainous areas, taking into account the requirements of passability and rolling rate.

Description

Technical Field

[0001] The utility model relates to the technical field of regenerated rice combine harvesters, in particular to a regenerated rice harvesting platform and a regenerated rice combine harvester. Background Art

[0002] In recent years, with the change of labor force structure and the decline of double-season rice planting benefits, the double-season rice planting area in the middle and lower reaches of the Yangtze River in my country has been greatly reduced. Raised rice planting is a rice farming method that uses the axillary buds on the rice piles after the first season of rice is harvested to germinate into seedlings, and through scientific management, it is allowed to head and bear fruit before harvesting another season. Raised rice is an important rice farming model for improving the quality and efficiency of agriculture in my country's transition period. It has the advantages of saving seeds, labor, fertilizer, and rice seedlings, and has better rice quality, green and safe. Therefore, it has developed rapidly in more than a dozen provinces such as Anhui, Hubei, Hunan, Jiangxi, and Sichuan. It has not only effectively made up for the decline in the area of ​​double-season rice in the south, alleviated the labor shortage and the sharp rise in labor costs in double-season rice areas, but also made important contributions to optimizing the grain production structure and ensuring national food security. However, there is a severe shortage of machines that meet the requirements of the first-season harvest of regenerated rice in the market. In order to put them on the market as soon as possible, most companies have chosen to modify the traditional crawler full-feed combine harvesters according to the "wide cutter table with narrow tracks" scheme. The most common modification is to replace the original 500 mm wide tracks with 350 mm wide tracks on the basis of the traditional full-feed harvesters with a power of 73.5~87kW, which accounts for 90% of the market. This not only greatly reduces the paddy field passability of the whole machine, but also requires the linear crushing rate of ≤28% required by the regenerated rice identification outline to increase the operating width to 2.5 meters or more. This, in turn, reduces the passability and walking safety of roads in hilly and mountainous areas due to the significant widening of the cutter table, and is not suitable for the harvesting of small plots in hilly and mountainous areas. What's more, most of the current regenerated rice is planted in hilly and mountainous areas. Utility Model Content

[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide a regenerated rice harvesting platform and a regenerated rice combine harvester, which can effectively meet the use needs of small fields in hilly and mountainous areas and take into account the requirements of passability and crushing rate.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A regenerated rice harvesting platform comprises a harvesting platform frame, a reed wheel arranged above the front of the harvesting platform frame, a reciprocating cutter arranged at the entrance of the harvesting platform frame, a harvesting platform spiral auger arranged at the rear of the harvesting platform frame, a left crop divider and a right crop divider respectively arranged on both sides of the entrance of the harvesting platform frame, a reed wheel supporting cylinder arranged on both sides of the harvesting platform frame, and a transmission mechanism arranged on one side of the harvesting platform frame, wherein the working width of the harvesting platform between the left crop divider and the right crop divider is less than or equal to 2.5 meters, and the regenerated rice harvesting platform is used in conjunction with a crawler-type walking chassis, and the crawler-type walking chassis comprises a left crawler and a right crawler, and the width of each crawler is less than or equal to 280 mm.

[0006] As a preferred embodiment of the utility model, when the working width of the harvesting platform is 200-210 cm, the distance from the left crop divider to the center of the left crawler is 25-30 cm, and the distance from the right crop divider to the center of the right crawler is 25~30 cm or 55~60 cm.

[0007] As a preferred embodiment of the utility model, when the working width of the harvesting platform is 230-240 cm, the distance from the left crop divider to the center of the left crawler is 25-30 cm or 55-60 cm, and the distance from the right crop divider to the center of the right crawler is 55-60 cm.

[0008] As a preferred embodiment of the present invention, the left crop divider and the right crop divider both include two upper baffle bars and an inner crop dividing rod close to the inner side of the harvesting table frame, and the front ends of the two baffle bars and the inner crop dividing rod are connected.

[0009] As a preferred embodiment of the utility model, the reel supporting cylinder is located between the two blocking rods.

[0010] As a preferred embodiment of the present invention, the blocking rod has an arc-shaped portion.

[0011] As a preferred embodiment of the present invention, the left crop divider and the right crop divider are both formed by welding steel pipes.

[0012] As a preferred embodiment of the present invention, the installation angle between the crop divider close to the transmission mechanism side and the reciprocating cutter is greater than 90°.

[0013] As a preferred embodiment of the present invention, the installation angles between the left crop divider and the right crop divider and the reciprocating cutter are both greater than 90°.

[0014] The utility model also provides a regenerated rice combine harvester, comprising a chassis walking part, a threshing and separation part, a grain cleaning part, a grain storage and unloading part, a threshed straw powder throwing part, and the regenerated rice harvesting platform as described above.

[0015] The utility model has the following advantages over the prior art:

[0016] 1. Not only is the ratio of the sum of the widths of the two crawlers to the working width of the harvesting platform less than 0.28, which meets the requirements for the linear crushing rate of the rice stubble, but the two crawlers can also be between two adjacent ratoon rice plants at the same time, further reducing or even avoiding the crushing of the rice stubble and ensuring the yield of the second season of ratoon rice;

[0017] 2. When the working width of the harvesting platform is greater than 2 meters and less than 2.1 meters, it is suitable for use in ratoon rice planting areas in most hilly and mountainous areas; when the working width of the harvesting platform is greater than 2.1 meters and less than 2.4 meters, it is more suitable for use in ratoon rice planting areas in most areas of the middle and lower reaches of the Yangtze River;

[0018] 3. The reel support oil cylinder is located between two baffle bars, thus preventing the cut regenerated rice close to the inner sides of the left and right reel dividers from being entangled on the reel support oil cylinder;

[0019] 4. The installation angle between the rice divider and the reciprocating cutter is greater than 90°, thereby preventing the uncut regenerated rice from being dragged down due to the excessive width of the transmission mechanism when harvesting the semi-lodged regenerated rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front view of a regenerated rice combine harvester provided in this embodiment:

[0021] Figure 2 A schematic diagram of the position of the harvesting platform and the left and right crawlers when harvesting 7 regenerated rice plants provided in this embodiment:

[0022] Figure 3 A schematic diagram of the position of the harvesting platform and the left and right crawlers when harvesting 8 regenerated rice plants provided in this embodiment;

[0023] Figure 4 A top view of a regenerated rice harvesting platform provided in this embodiment;

[0024] Figure 5 A front view of a regenerated rice harvesting platform provided in this embodiment;

[0025] Figure 6 A top view of the left crop divider provided in this embodiment;

[0026] Figure 7 A front view of the left crop divider provided in this embodiment;

[0027] Figure 8 A left side view of the left crop divider provided in this embodiment;

[0028] In the figure: 1-regenerated rice harvesting platform; 2a-left crawler; 11-cutting platform frame; 12-cutting platform spiral auger; 13-reed wheel; 14-reciprocating cutter; 15a-left reed divider; 15a1-blocking rod; 15a2-inner reed divider rod; 15b-right reed divider; 16a-left reed wheel supporting cylinder; 16b-right reed wheel supporting cylinder; 17-transmission mechanism; 17a-crank-connecting rod mechanism or swing ring mechanism; 17b-sprocket. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 As shown, the regenerated rice harvesting platform is suitable for a crawler-type regenerated rice combine harvester, wherein the regenerated rice harvesting platform 1 is arranged at the front of the harvester, and a walking chassis is provided at the bottom of the harvester, and the walking chassis includes a left crawler 2a and a right crawler.

[0031] Figure 2 The diagram is a schematic diagram of the position of the harvesting platform 1 and the left and right crawlers when harvesting 7 regenerated rice plants. In the diagram, X represents a regenerated rice plant. The regenerated rice harvesting platform 1 is adapted to small plots in hilly and mountainous areas, and the working width A should be set within 2.1 meters; in order to be adapted to most areas in the middle and lower reaches of the Yangtze River, the working width A should be set within 2.5 meters. Therefore, the two working widths A of the regenerated rice harvesting platform 1 are set to be less than 2.5 meters. In order to meet the requirement of the regenerated rice harvester outline that the linear rolling rate is less than or equal to 28%, the width D of the crawler used with it should be less than or equal to 280 mm.

[0032] Since the current planting row spacing F of most regenerated rice is 30 cm, and the width D of the track used in conjunction with the present regenerated rice harvester is no more than 280 mm, the width D in the present embodiment is specifically 280 mm, that is, F>D. In theory, as long as the track runs between the rice stubbles of two adjacent rows of regenerated rice, the rice stubble will not be crushed. Therefore, in order to crush the rice stubble as little as possible, there are many ways to achieve the size of the working width A of the present regenerated rice harvester 1 and the position of the chassis track of the regenerated rice harvester using it. The following four are preferred.

[0033] like Figure 2 As shown, when 7 regenerated rice plants need to be harvested at the same time, the working width A of the regenerated rice harvesting platform 1 is selected to be approximately 200-210 cm, which is approximately 7 times the row spacing, and the left and right crawler center distance B of the regenerated rice harvester using it is selected to be 150 cm, which is 5 times the row spacing. Then the distance C1 from the tip of the left grain divider to the center of the left crawler and the distance C2 from the tip of the right grain divider to the center of the right crawler are both 25-30 cm. In this way, when the left and right grain dividers pass through the middle of two adjacent regenerated rice plants, the left and right crawlers are also exactly in the middle of the two adjacent regenerated rice plants, which can effectively avoid the rolling of the rice stubble.

[0034] Likewise Figure 2 As shown in FIG. 1 , when the width A of the regenerated rice harvesting platform 1 is still selected to be approximately 200-210 cm, which is approximately 7 times the row spacing, and the track center distance B of the regenerated rice harvester using the same is selected to be 120 cm, which is 4 times the row spacing, the left track is moved 30 cm to the right to Figure 2 At the dotted line, the distance C1 from the tip of the left divider to the center of the left track is changed from 25 to 30 cm to 55 to 60 cm, while the distance C2 from the tip of the right divider to the center of the right track is still 25 to 30 cm. In this way, when the left and right dividers pass through the middle of two adjacent regenerated rice plants, the left and right tracks are still in the middle of the two adjacent regenerated rice plants, which can also effectively avoid crushing the rice stubble.

[0035] Figure 3 This is a schematic diagram of the position of the harvesting platform and the left and right crawlers when harvesting 8 regenerated rice plants. In the figure, the planting row spacing F of the regenerated rice is still 30 cm, and the crawler width D is still 280 mm. When it is necessary to harvest 8 regenerated rice plants at the same time, the working width A of the regenerated rice harvesting platform 1 is selected to be approximately 230~240 cm, which is approximately 8 times the row spacing, and the crawler center distance B of the regenerated rice harvester using it is selected to be 120 cm, which is 4 times the row spacing. Then, the distance C1 from the tip of the left grain divider to the center of the left crawler and the distance C2 from the tip of the right grain divider to the center of the right crawler are both 55~60 cm. In this way, when the left and right grain dividers pass through the middle of two adjacent regenerated rice plants respectively, the left and right crawlers are also exactly in the middle of the two adjacent regenerated rice plants, which can effectively avoid the crushing of the rice stubble.

[0036] Likewise Figure 3 As shown, when the working width A of the regenerated rice harvesting platform 1 is still selected to be approximately 230-240 cm, which is approximately 8 times the row spacing, and the track center distance B of the regenerated rice harvester using it is selected to be 150 cm, which is 5 times the row spacing, the right track is moved 30 cm to the right. Figure 3 At the dotted line position, the distance C1 from the tip of the left divider to the center of the left track is still 55-60 cm, but the distance C2 from the tip of the right divider to the center of the right track is changed from 55-60 cm to 25-30 cm. In this way, when the left and right dividers pass through the middle of two adjacent regenerated rice plants, the left and right tracks are still in the middle of the two adjacent regenerated rice plants, which can also effectively avoid crushing the rice stubble.

[0037] like Figure 4 and 5As shown, the regenerated rice harvesting platform 1 comprises a harvesting platform frame 11, a reel 13 disposed at the front upper part of the harvesting platform frame 11, a reciprocating cutter 14 disposed at the entrance of the harvesting platform frame 11, a harvesting platform spiral auger 12 disposed at the rear of the harvesting platform frame 11, a left crop divider 15a and a right crop divider 15b disposed at both sides of the entrance of the harvesting platform frame 11, a left reel supporting oil cylinder 16a and a right reel supporting oil cylinder 16b disposed at both sides of the harvesting platform frame 11, and a transmission mechanism 17 disposed on the left side of the harvesting platform frame 11. The reel 13 is rotatably supported on a rear crossbeam transversely mounted on the harvesting platform frame 11; the transmission mechanism 17 comprises a crank connecting rod mechanism or a swing ring mechanism 17a connected to the reciprocating cutter 14, and a sprocket 17b connected to the harvesting platform spiral auger 12.

[0038] The working method of the regenerated rice harvesting platform is relatively conventional: the uncut crops and the crops to be cut are forcibly separated by the left and right grain dividers 15a and 15b installed on both sides of the harvesting platform frame. The crops to be cut are supported by the grain wheel 13, and the bottom is cut off by the reciprocating cutter 14 and poured into the harvesting platform frame. The part containing ears is gathered by the harvesting platform spiral auger 12 and transported to the interface between the middle and rear part of the harvesting platform and the feeding and conveying part for subsequent threshing and cleaning processing.

[0039] Due to the manufacturing process requirements and to improve the rigidity of the crop divider, the left crop divider 15a and the right crop divider 15b are both welded from steel pipes. Figure 6-8 As shown, the left crop divider 15a includes two upper baffles 15a1 and an inner crop divider 15a2 near the inner side of the harvesting table frame 11. The front ends of the two baffles 15a1 and the inner crop divider 15a2 are connected to the front protruding corners of the crop divider. The two baffles 15a1 are inclined toward the inner and outer sides of the harvesting table frame 11, respectively, and the two form a V-shaped structure. Among them, the two baffles 15a1 are mainly used to separate the uncut crops from the crops to be cut, and the inner crop divider 15a2 is used to push the cut crops to the middle so that they will not be stuck in the gap between the crop divider and the reel 13.

[0040] Since the natural height of regenerated rice is generally as high as 1 meter or more, it is easy to fall or half fall, in order to prevent the cut regenerated rice close to the inner side of the left and right reel dividers from being entangled on the left reel support cylinder 16a and the right reel support cylinder 16b, as shown in FIG. Figure 4 and 5 As shown, the two blocking rods 15a1 above the left crop divider must extend backward and upward until they exceed the left reel support cylinder 16a, that is, the left reel support cylinder 16a is located between the two blocking rods 15a1, and the right crop divider is the same. In addition, in order to enable the blocking rod 15a1 to effectively match the height of the regenerated rice and prevent the blocking rod 15a1 from extending to an excessively high position to affect the normal operation of other components, the blocking rod 15a1 has a slightly upwardly protruding arc portion.

[0041] like Figure 4 As shown, when harvesting lodging or semi-lodging regenerated rice, in order to prevent the crank-connecting rod mechanism 17a, which is relatively low on the left outer side of the harvesting table frame, from overpowering or dragging the regenerated rice X that is leaning inwards close to the outer side of the left divider 15a, the installation angle between the left divider 15a1 and the reciprocating cutter should be greater than 90°, preferably 93°, that is, the front protrusion angle of the left divider 15a should be turned outward by a distance m, and m is preferably 5 to 8 cm. The inner plane of the traditional harvester divider is perpendicular to the cutter, and the regenerated rice X is easily contacted with the crank-connecting rod mechanism 17a and overpowered or dragged. Although there is no transmission mechanism on the right side of the harvesting table frame, considering the manufacturing process and assembly efficiency, the right divider 15b also has the same structure.

[0042] The utility model also provides a regenerated rice combine harvester, comprising a chassis walking part, a threshing and separation part, a grain cleaning part, a grain storage and unloading part, a threshed straw powder throwing part, and the regenerated rice harvesting platform as described above.

[0043] The above is only a preferred specific implementation of the utility model, which is an implementation method based on the overall concept of the utility model, and the protection scope of the utility model is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A regenerated rice harvesting platform, comprising a harvesting platform frame, a reed wheel arranged above the front of the harvesting platform frame, a reciprocating cutter arranged at the entrance of the harvesting platform frame, a harvesting platform spiral auger arranged at the rear of the harvesting platform frame, a left crop divider and a right crop divider arranged on both sides of the entrance of the harvesting platform frame, a reed wheel supporting cylinder arranged on both sides of the harvesting platform frame, and a transmission mechanism arranged on one side of the harvesting platform frame, characterized in that: The working width of the harvesting platform between the left and right crop dividers is less than or equal to 2.5 meters. The regenerated rice harvesting platform is used in conjunction with a crawler-type walking chassis. The crawler-type walking chassis includes a left crawler and a right crawler, and the width of each crawler is less than or equal to 280 millimeters.

2. A regenerated rice harvesting platform according to claim 1, characterized in that: When the working width of the harvesting platform is 200-210 cm, the distance from the left crop divider to the center of the left crawler is 25-30 cm, and the distance from the right crop divider to the center of the right crawler is 25-30 cm or 55-60 cm.

3. The regenerated rice harvesting platform according to claim 1, characterized in that: When the working width of the harvesting platform is 230-240 cm, the distance from the left crop divider to the center of the left crawler is 25-30 cm or 55-60 cm, and the distance from the right crop divider to the center of the right crawler is 55-60 cm.

4. The regenerated rice harvesting platform according to claim 1, characterized in that: The left crop divider and the right crop divider both include two upper baffle bars and an inner crop divider bar close to the inner side of the harvesting table frame, and the front ends of the two baffle bars and the inner crop divider bar are connected.

5. The regenerated rice harvesting platform according to claim 4, characterized in that: The reel supporting oil cylinder is located between the two blocking rods.

6. The regenerated rice harvesting platform according to claim 4, characterized in that: The blocking rod has an arc-shaped portion.

7. The regenerated rice harvesting platform according to claim 1, characterized in that: The left crop divider and the right crop divider are both formed by welding steel pipes.

8. The regenerated rice harvesting platform according to claim 1, characterized in that: The installation angle between the crop divider close to one side of the transmission mechanism and the reciprocating cutter is greater than 90°.

9. The regenerated rice harvesting platform according to claim 8, characterized in that: The installation angles between the left crop divider and the right crop divider and the reciprocating cutter are both greater than 90°.

10. A regenerated rice combine harvester, characterized in that: The utility model comprises a chassis walking part, a threshing and separating part, a grain cleaning part, a grain storage and unloading part, a threshing straw powder throwing part, and a regenerated rice harvesting platform as claimed in any one of claims 1 to 9.

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