Self-propelled combine harvester for hills and mountains

Abstract

The utility model relates to a self-propelled combine harvester for hills and mountains, which comprises a rack, an excavating device, a conveying chain, a seedling removing mechanism and an annular lifting mechanism are sequentially arranged on the rack from front to back, and the outer conveying chain is used for separating a potato and impurity mixture, so that potatoes after impurity removal fall onto the annular lifting mechanism. The potato seedling removing device can achieve seedling removing, effectively avoids damage to potatoes and is low in potato damage rate.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a self-propelled combine harvester for hilly and mountainous areas. Background Art

[0002] Potatoes are one of the important economic crops in my country. Potatoes grow under the soil and have tubers. They are often harvested manually, but this method is inefficient and wastes manpower. With the development of science and technology, potato harvesters continue to emerge, which has greatly promoted the production of root crops.

[0003] At present, the existing patent CN201711306086.0 discloses a potato two-stage soil screening harvester, which includes a frame device, an excavating device, a seedling removal device, a soil and potato shaking separation and conveying device, a spiral drum separation and screening device and a collecting device. The power is transmitted to the blade shaft through the seedling removal pulley, thereby driving the seedling removal blade to perform seedling removal operations. The small walking wheel supports and drives the seedling removal device. The high-speed rotating seedling removal blade breaks the seedling vines, and then the negative pressure generated during the high-speed rotation sucks the broken seedling vines into the protective cover, which is rubbed and hit by the staggered blades for many times, and finally the seedling vines are crushed and evenly scattered on the surface. When the seedling removal device is in use, the seedling removal blade rotates to break the seedling vines, which is easy to cause damage to the potatoes, and the potato damage rate is high. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a self-propelled combine harvester for hilly and mountainous areas.

[0005] The utility model adopts the following technical solution to solve the above technical problems: a self-propelled combine harvester for hilly and mountainous areas, comprising a frame, on which a digging device, a conveying chain, a seedling removing mechanism and a ring-shaped lifting mechanism are arranged in sequence from front to back, and the outer conveying chain is used to separate the potato-miscellaneous mixture so that the potatoes after the impurities are removed fall onto the ring-shaped lifting mechanism.

[0006] As a preferred solution, the conveying chain is single-stage or multi-stage.

[0007] As a preferred solution, the seedling removing mechanism includes an inner conveying chain and an outer conveying chain surrounding the outer side of the inner conveying chain, the end of the conveying chain is higher than the initial end of the outer conveying chain, and the annular lifting mechanism and the outer conveying chain are mutually intertwined and located at the end of the inner conveying chain.

[0008] As a preferred solution, a picking conveyor chain is provided on the frame above the inner conveyor chain, a loading and unloading box is provided at the end of the picking conveyor chain, the inner conveyor chain is used to convey potatoes to the annular lifting mechanism, the annular lifting mechanism is used to convey potatoes to the picking conveyor chain, and the picking conveyor chain is used to deliver potatoes to the loading and unloading box.

[0009] As a preferred solution, the excavating device includes a plurality of excavating shovels arranged at the front end of the frame.

[0010] As a preferred solution, soil cutting disc cutters are respectively provided on both sides of the excavating device on the frame.

[0011] As a preferred solution, the external conveying chain includes an annular connecting belt, a driving shaft, a guide wheel and a conveyor belt mounted on the outside of the driving shaft and the guide wheel. There are two conveyor belts that are arranged opposite to each other. A plurality of seedling removing rods are arranged between the two conveyor belts. The annular connecting belt is connected to the plurality of seedling removing rods and intersects them vertically.

[0012] As a preferred solution, the frame is provided with a plurality of guide wheels cooperating with the conveyor belt, and the plurality of guide wheels are used to form a receiving space for the conveyor belt to enclose the inner conveyor chain.

[0013] As a preferred solution, the distance between two adjacent seedling removing rods is greater than the spacing between the chain rods of the inner conveying chain.

[0014] As a preferred solution, a first-stage potato-blocking assembly or a multi-stage potato-blocking assembly is arranged at intervals at the end of the outer conveying chain on the frame. The potato-blocking assembly includes a support rod and a plurality of potato-blocking plates arranged on the support rod. The potato-blocking plates are arranged to tilt backward from top to bottom.

[0015] The beneficial effects of the present application are as follows: 1. The present application sets an external conveying chain, and the potato and offal mixture is conveyed to the external conveying chain through the conveying chain. The conveying surface is composed of a conveying belt, a seedling removing rod and an annular connecting belt. The seedlings fall on the conveying surface, are conveyed to the end of the external conveying chain and then fall to the ground. The potatoes fall from the gap between two adjacent seedling removing rods to the internal conveying chain, and are transported backwards through the internal conveying chain, thereby achieving seedling removal, effectively avoiding damage to the potatoes, and having a low potato damage rate.

[0016] 2. The present application provides a primary potato-blocking assembly and a secondary potato-blocking assembly. The potato-blocking plate can block the potatoes mixed in the vines and drop them onto the inner conveyor chain, thereby preventing the potatoes from falling to the ground along with the vines and being buried by the vines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 Top view;

[0019] Figure 3 It is a schematic diagram of the structure of the outer conveying chain and the inner conveying chain of the utility model;

[0020] Figure 4 for Figure 3 A top view of

[0021] Figure 5 for Figure 4 Sectional view of AA.

[0022] Markings in the figure: 1, frame, 2, digging shovel, 21, soil cutting disc, 3, conveyor chain, 4, ring lifting mechanism, 5, picking conveyor chain, 6, loading and unloading box, 7, outer conveyor chain, 71, conveyor belt, 72, seedling removing rod, 73, ring connecting belt, 74, support rod, 75, potato baffle, 76, guide wheel, 77, driving shaft, 78, first guide wheel, 781, second guide wheel, 782, third guide wheel, 783, fourth guide wheel, 784, fifth guide wheel, 8, inner conveyor chain. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] See also Figure 1-5 The embodiment of the utility model provides a self-propelled combine harvester for hilly and mountainous areas, including a frame 1, on which a digging device, a conveying chain 3, a seedling removing mechanism and a ring-shaped lifting mechanism 4 are arranged from front to back, and an outer conveying chain 7 is used to separate the potato and impurity mixture so that the impurity-removed potatoes fall onto the ring-shaped lifting mechanism 4.

[0025] Among them, the conveyor chain 3 is one or more stages, combined with Figure 1-2 As shown, the seedling removing mechanism includes an inner conveying chain 8 and an outer conveying chain 7 surrounding the outer side of the inner conveying chain 8, the end of the conveying chain 3 is higher than the initial end of the outer conveying chain 7, the annular lifting mechanism 4 and the outer conveying chain 7 are mutually interlocked and located at the end of the inner conveying chain 8, and a picking conveying chain 5 is provided on the frame 1 above the inner conveying chain 8, and a loading and unloading box 6 is provided at the end of the picking conveying chain 5, the inner conveying chain 8 is used to convey potatoes to the annular lifting mechanism 4, the annular lifting mechanism 4 is used to convey potatoes to the picking conveying chain 5, and the picking conveying chain 5 is used to convey potatoes to the loading and unloading box 6.

[0026] The annular lifting mechanism 4 adopts the annular lifting mechanism in the existing patent CN216492017U, the loading and unloading box 6 is the loading and unloading box assembly in the existing patent CN216253978U, the conveying chain 3, the inner conveying chain 8 and the picking conveying chain 5 all adopt the existing commonly used rod-type conveying chains, and the three structures can also adopt the primary separation device in the existing patent CN201520018737.6 or the conveying separation device in CN201620861644.4. The conveying end of the inner conveying chain 8 is higher than the conveying starting end, the conveying chain 3, the inner conveying chain 8, the picking conveying chain 5, and the outer conveying chain 7 are connected to the driving motor through chain transmission, and the driving motor is arranged on the frame. It should be noted that the parts not described in detail in this application are all prior art.

[0027] Specifically, the excavating device includes a plurality of excavating shovels 2 arranged at the front end of a frame 1, and soil cutting discs 21 are respectively arranged on both sides of the excavating device on the frame 1.

[0028] Combination Figure 3-5 As shown, the outer conveying chain 7 includes an annular connecting belt 73, a driving shaft 77, a guide wheel 76 and a conveying belt 71 sleeved on the outside of the driving shaft 77 and the guide wheel 76. There are two conveying belts 71 and they are arranged opposite to each other. There are two guide wheels 76 and they cooperate with the conveying belt 71 on the same side. A plurality of seedling removing rods 72 are arranged between the two conveying belts 71. The annular connecting belt 73 is connected to the plurality of seedling removing rods 72 and intersects vertically. There are two annular connecting belts 73 and they are arranged axially at intervals along the seedling removing rods 72. The distance between two adjacent seedling removing rods 72 is greater than the spacing between the chain rods of the inner conveying chain 8. Potatoes can fall onto the inner conveying chain 8 through the gap between two adjacent seedling removing rods 72. The driving shaft 77 is connected to the conveying chain 3 through a chain drive.

[0029] Combination Figure 5 As shown, the frame 1 is provided with a first guide wheel 78, a second guide wheel 781, a third guide wheel 782, a fourth guide wheel 783 and a fifth guide wheel 784 which cooperate with the conveyor belt 71. The first guide wheel 78 is located on the outer side of the upper end of the conveyor belt 71 and close to the drive shaft 77. The second guide wheel 781, the fourth guide wheel 783 and the fifth guide wheel 784 are all arranged in sequence on the inner side of the lower end of the conveyor belt 71 at intervals. The third guide wheel 782 is located on the outer side of the lower end of the conveyor belt 71 and between the second guide wheel 781 and the fourth guide wheel 783. The fifth guide wheel 784 is located below the drive shaft 77 and is arranged behind the drive shaft 77.

[0030] In addition, combined Figure 3-5As shown, a first-stage potato-blocking assembly or a multi-stage potato-blocking assembly is provided at intervals at the end of the outer conveying chain 7 on the frame 1, and the potato-blocking assembly includes a support rod 74 and a plurality of potato-blocking plates 75 arranged on the support rod 74, and the potato-blocking plates 75 are arranged to be tilted backward from top to bottom. A first-stage potato-blocking assembly and a second-stage potato-blocking assembly are provided on the frame 1, and the angle between the support rod 74 of the first-stage potato-blocking assembly and the horizontal plane is smaller than the angle between the support rod 74 of the second-stage potato-blocking assembly and the horizontal plane.

[0031] The potato and offal mixture of the present application is conveyed to the outer conveyor chain 7 through the conveyor chain 3. The conveyor belt 71, the seedling removing rod 72 and the annular connecting belt 73 form a conveying surface. The seedlings fall on the conveying surface, are conveyed to the end of the outer conveyor chain and then fall to the ground. The potatoes fall from the gap between two adjacent seedling removing rods 72 to the inner conveyor chain 8 and are transported backwards through the inner conveyor chain 8, thereby achieving seedling removal, effectively avoiding damage to the potatoes, and reducing the potato damage rate.

[0032] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model fall within the protection scope of the present utility model.

Claims

1. A self-propelled combine harvester for hilly and mountainous areas, characterized in that: The machine comprises a frame (1), on which a digging device, a conveying chain (3), a seedling removal mechanism and a ring-shaped lifting mechanism (4) are arranged in sequence from front to back, and an outer conveying chain (7) is used to separate a potato and impurity mixture so that the impurity-removed potatoes fall onto the ring-shaped lifting mechanism (4).

2. A self-propelled combine harvester for hilly and mountainous areas according to claim 1, characterized in that: The conveying chain (3) is single-stage or multi-stage.

3. The self-propelled combine harvester for hilly and mountainous areas according to claim 1, characterized in that: The seedling removing mechanism comprises an inner conveying chain (8) and an outer conveying chain (7) surrounding the outer side of the inner conveying chain (8); the end of the conveying chain (3) is higher than the initial end of the outer conveying chain (7); and the annular lifting mechanism (4) and the outer conveying chain (7) are mutually interlocked and located at the end of the inner conveying chain (8).

4. The self-propelled combine harvester for hilly and mountainous areas according to claim 3, characterized in that: A picking conveyor chain (5) is provided on the frame (1) above the inner conveyor chain (8), a loading and unloading box (6) is provided at the end of the picking conveyor chain (5), the inner conveyor chain (8) is used to convey potatoes to the annular lifting mechanism (4), the annular lifting mechanism (4) is used to convey potatoes to the picking conveyor chain (5), and the picking conveyor chain (5) is used to convey potatoes to the loading and unloading box (6).

5. The self-propelled combine harvester for hilly and mountainous areas according to claim 1, characterized in that: The excavating device comprises a plurality of excavating shovels (2) arranged at the front end of a frame (1).

6. The self-propelled combine harvester for hilly and mountainous areas according to claim 1, characterized in that: Soil cutting disc cutters (21) are respectively arranged on both sides of the excavating device on the frame (1).

7. The self-propelled combine harvester for hilly and mountainous areas according to claim 1, characterized in that: The outer conveying chain (7) comprises an annular connecting belt (73), a driving shaft (77), a guide wheel (76), and a conveying belt (71) sleeved on the outside of the driving shaft (77) and the guide wheel (76); the conveying belts (71) are two and arranged opposite to each other; a plurality of seedling removing rods (72) are arranged between the two conveying belts (71); and the annular connecting belt (73) is connected to the plurality of seedling removing rods (72) and intersects vertically.

8. The self-propelled combine harvester for hilly and mountainous areas according to claim 7, characterized in that: The frame (1) is provided with a plurality of guide wheels that cooperate with the conveyor belt (71), and the plurality of guide wheels are used to form a receiving space for the conveyor belt (71) to surround the inner conveyor chain (8).

9. The self-propelled combine harvester for hilly and mountainous areas according to claim 7, characterized in that: The distance between two adjacent seedling removing rods (72) is greater than the spacing between the chain rods of the inner conveying chain (8).

10. The self-propelled combine harvester for hilly and mountainous areas according to claim 1, characterized in that: A first-stage potato-blocking assembly or a multi-stage potato-blocking assembly is provided at intervals on the frame (1) at the end of the outer conveying chain (7), the potato-blocking assembly comprising a support rod (74) and a plurality of potato-blocking plates (75) arranged on the support rod (74), the potato-blocking plates (75) being arranged to tilt backwards from top to bottom.

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