Small alfalfa harvester with low damage to alfalfa stalks

Abstract

The small alfalfa harvester comprises a harvesting bin, a protective cover, a self-locking wheel, a connecting plate, a cutting knife and a knife stone, a feeding port and a discharging port are formed in the two sides of the harvesting bin respectively, the protective cover is detachably connected to the discharging port, alfalfa in the harvesting bin can be protected conveniently, the self-locking wheel is arranged on the self-locking wheel, and the self-locking wheel is arranged on the self-locking wheel. Two connecting screws are symmetrically connected between the protective cover and the harvesting bin in a threaded mode, connecting screw holes matched with the connecting screws are formed in the outer side wall of the harvesting bin, the protective cover can be mounted and dismounted on the harvesting bin, the discharging port can be conveniently exposed by dismounting the protective cover, alfalfa in the harvesting bin can be conveniently cleaned, and the harvesting efficiency is improved. And a push handle is obliquely and fixedly connected to the protective cover. According to the small alfalfa harvester with low damage to the alfalfa stalks, the cutting damage to the alfalfa stalks caused by passivation of the cutting knife can be reduced conveniently, and therefore low-damage harvesting can be conducted on the alfalfa.

Description

Technical Field

[0001] The utility model relates to the technical field of harvesters, in particular to a small alfalfa harvester with low damage to alfalfa stems. Background Art

[0002] Alfalfa is a perennial flowering plant known as the "king of forages", and the market demand is very strong. At present, most of the alfalfa is harvested manually, which is prone to waste of manpower and time, and the harvesting efficiency is low.

[0003] In order to improve the harvesting efficiency, the prior art has proposed an alfalfa plant harvesting device with the patent publication number of CN221152048U, which is connected through a front bin, an inner bin, a double-layer cutter, an inclined baffle, a climbing conveyor, a motor and a collecting mechanism. During use, the path of alfalfa in the inner bin can be docked and then pushed. By starting the internal double-layer cutter, the touched alfalfa is cut off. Although it is convenient to harvest alfalfa, after the cutter cuts alfalfa for a long time, the cutter is prone to blunt, the cutting effect of the cutter on the alfalfa stem becomes weak, while the impact effect increases, the tensile stress in the growth direction (Z direction) of the alfalfa stem increases, a tearing and pulling effect will be formed, the root of the alfalfa incision becomes loose, thus easily causing damage to the alfalfa stem and affecting the alfalfa harvesting quality. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a small alfalfa harvester with low damage to alfalfa stems to solve the problem that alfalfa is prone to stem damage during cutting, which will affect the harvesting quality as mentioned in the background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A small alfalfa harvester with low damage to alfalfa stems, including a harvesting bin, a protective cover, self-locking wheels, a connecting plate, a cutting knife and a sharpening stone;

[0008] Feeding ports and discharging ports are respectively arranged on both sides of the harvesting bin;

[0009] The protective cover is detachably connected to the discharging port;

[0010] A plurality of self-locking wheels are provided, and all the self-locking wheels are installed at the bottom end of the harvesting bin;

[0011] The connecting plate is slidably connected to the feeding port through a connecting seat;

[0012] A plurality of cutting knives are provided, and the plurality of cutting knives are arranged in an array on one side of the connecting plate;

[0013] There are two grindstones, and the two grindstones are slidably arranged on both sides of the connecting plate in opposite directions, and an adjusting component is arranged between the two grindstones.

[0014] Furthermore, the adjusting component includes:

[0015] A fixed plate, which is arranged on one side of the harvesting bin;

[0016] A double-headed electric cylinder, which is installed on one side of the fixed plate through a mounting plate, and the output end of the double-headed electric cylinder is connected through the mounting plate;

[0017] Two driving plates, both of the two driving plates are fixedly connected to the output end of the double-headed electric cylinder;

[0018] A driving rod, which is fixedly connected between each driving plate and the adjacent grindstone.

[0019] Furthermore, the connecting seat includes:

[0020] A connecting box, which is detachably connected to the harvesting bin, and a groove matching the connecting box is opened on the harvesting bin;

[0021] An electric cylinder, which is installed in the connecting box;

[0022] A connecting frame, which is fixedly connected between the output end of the electric cylinder and the connecting plate.

[0023] Furthermore, a positioning frame is fixedly connected between the fixed plate and the connecting box, a positioning groove matching the positioning frame is opened on the harvesting bin, and a positioning screw is threadedly connected between the positioning frame and the harvesting bin.

[0024] Furthermore, two connecting screws are symmetrically threadedly connected between the protective cover and the harvesting bin, and connecting screw holes matching the connecting screws are opened on the outer side wall of the harvesting bin.

[0025] Furthermore, a clamping rod is fixedly connected to one side of the connecting plate, and a clamping groove matching the clamping rod is opened on the harvesting bin.

[0026] Furthermore, a sliding block is fixedly connected to one side of the fixed plate, and a sliding groove for the sliding block to slide is opened on the mounting plate.

[0027] (III) Beneficial effects

[0028] Compared with the prior art, the utility model provides a small alfalfa harvester with low damage to alfalfa stems, which has the following beneficial effects:

[0029] 1. In the utility model, through the harvesting bin, it is convenient to slidably install the connecting plate, so as to install a plurality of cutting knives. Through a plurality of self-locking wheels, the harvesting bin can be pushed, so that a plurality of cutting knives can cut alfalfa, and the alfalfa enters the harvesting bin for collection;

[0030] 2. In the utility model, through the adjusting component, it is convenient to move two grindstones towards each other, so as to adjust the use position of the grindstones. At the same time, by pushing the connecting plate back and forth, the two grindstones can grind the cutting knives, so as to reduce the cutting damage to the alfalfa stems caused by the dulling of the cutting knives, and thus the alfalfa can be harvested with low damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the whole application;

[0032] Figure 2 In the present application Figure 1 It is a partial enlarged structural diagram of part A in the application;

[0033] Figure 3 It is a schematic structural diagram of the cooperation of the grindstone, the driving plate and the positioning frame in the application;

[0034] Figure 4 It is a schematic structural diagram of the cooperation of the connecting plate, the connecting box and the clamping rod in the application.

[0035] In the figure: 1, harvesting bin; 2, protective cover; 3, self-locking wheel; 4, connecting plate; 5, cutting knife; 6, grindstone; 7, fixing plate; 8, double-headed electric cylinder; 9, driving plate; 10, driving rod; 11, connecting box; 12, electric cylinder; 13, connecting frame; 14, positioning frame; 15, positioning screw; 16, connecting screw; 17, clamping rod; 18, sliding block; 19, pushing handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0037] Please refer to Figures 1 to 4, A small alfalfa harvester with low damage to alfalfa stems, including a harvesting bin 1, a protective cover 2, self-locking wheels 3, a connecting plate 4, a cutting knife 5 and a sharpening stone 6. A conveyor belt can be installed in the harvesting bin 1 to make the cut alfalfa enter the inside of the harvesting bin 1. At the same time, the alfalfa can also be pushed into the inside of the harvesting bin 1 manually. Feeding ports and discharging ports are respectively arranged on both sides of the harvesting bin 1. The protective cover 2 is detachably connected to the discharging port to facilitate the protection of the alfalfa in the harvesting bin 1. Two connecting screws 16 are symmetrically and threadedly connected between the protective cover 2 and the harvesting bin 1. Connecting screw holes matching the connecting screws 16 are arranged on the outer side wall of the harvesting bin 1, so that the protective cover 2 can be installed and disassembled on the harvesting bin 1. By disassembling the protective cover 2, it is convenient to expose the discharging port, so as to clean the alfalfa in the harvesting bin 1. A pushing handle 19 is obliquely and fixedly connected to the protective cover 2. A plurality of self-locking wheels 3 are provided, and all the plurality of self-locking wheels 3 are installed at the bottom end of the harvesting bin 1. Through the cooperation of the pushing handle 19 and the plurality of self-locking wheels 3, it is convenient to move the harvesting bin 1. The connecting plate 4 is slidably connected to the feeding port through a connecting seat. A plurality of cutting knives 5 are provided, and the plurality of cutting knives 5 are arranged in an array on one side of the connecting plate 4. Two sharpening stones 6 are provided, and the two sharpening stones 6 are slidably arranged facing each other on both sides of the connecting plate 4, and an adjusting component is arranged between the two sharpening stones 6.

[0038] Reference Figure 3 , The adjusting component includes a fixing plate 7, a double-headed electric cylinder 8, a driving plate 9 and a driving rod 10. The fixing plate 7 is arranged on one side of the harvesting bin 1. The double-headed electric cylinder 8 is installed on one side of the fixing plate 7 through a mounting plate, and the output end of the double-headed electric cylinder 8 penetrates through the mounting plate. Two driving plates 9 are provided, and both of the two driving plates 9 are fixedly connected to the output end of the double-headed electric cylinder 8. The driving rod 10 is fixedly connected between each driving plate 9 and the adjacent sharpening stone 6. A sliding block 18 is fixedly connected to one side of the driving plate 9, and a sliding groove for the sliding block 18 to slide is arranged on the fixing plate 7, which can increase the stability of the driving plate 9 sliding on one side of the mounting plate. At the same time, the height of the driving plate 9 will not affect the movement of the connecting frame 13;

[0039] By pulling the two driving plates 9 towards each other through the double-headed electric cylinder 8, the two driving plates 9 can drive the two sharpening stones 6 to move towards each other through the two driving rods 10, so as to adjust the grinding positions of the two sharpening stones 6.

[0040] Reference Figure 2 And Figure 4, the connecting seat includes a connecting box 11, an electric cylinder 12 and a connecting frame 13. The connecting box 11 is detachably connected to the harvesting bin 1, and a groove matching the connecting box 11 is provided on the harvesting bin 1. The electric cylinder 12 is installed in the connecting box 11. The connecting frame 13 is fixedly connected between the output end of the electric cylinder 12 and the connecting plate 4. A connecting port matching the connecting frame 13 is provided on the harvesting bin 1, and a connecting groove matching the connecting plate 4 is provided on the harvesting bin 1. A clamping rod 17 is fixedly connected to one side of the connecting plate 4, and a clamping groove matching the clamping rod 17 is provided on the harvesting bin 1, which is convenient for increasing the installation stability of the connecting plate 4 in the connecting groove, so as to stably install a plurality of cutting knives 5;

[0041] By starting the electric cylinder 12, the electric cylinder 12 can push the connecting plate 4 back and forth through the connecting frame 13, so as to drive the cutting knife 5 to move back and forth between the two grindstones 6, thus facilitating the grinding of the cutting knife 5, reducing the cutting damage of the alfalfa stalks caused by the bluntness of the cutting knife 5, and thus enabling low-damage harvesting of alfalfa.

[0042] Reference Figure 2 , a positioning frame 14 is fixedly connected between the fixing plate 7 and the connecting box 11. A positioning groove matching the positioning frame 14 is provided on the harvesting bin 1, and a positioning screw 15 is threadedly connected between the positioning frame 14 and the harvesting bin 1;

[0043] Through the positioning screw 15, the positioning frame 14 can be installed and disassembled on the harvesting bin 1, so as to facilitate the installation and disassembly of the mounting plate and the connecting box 11.

[0044] In summary, for this small alfalfa harvester with low damage to alfalfa stalks, first push the push handle 19, so that the harvesting bin 1 moves through a plurality of self-locking wheels 3, so as to enable a plurality of cutting knives 5 to harvest alfalfa. After the alfalfa is harvested, it will enter the harvesting bin 1 through the subsequent thrust of harvesting alfalfa. When it is necessary to grind the cutting knife 5, start the double-headed electric cylinder 8, so that the double-headed electric cylinder 8 pulls the two driving plates 9, so as to enable the two driving rods 10 to drive the two grindstones 6 to move, thereby adjusting the grinding position of the grindstones 6. After the position of the grindstones 6 is adjusted, start the electric cylinder 12, so that the electric cylinder 12 drives the connecting frame 13 and the connecting plate 4 to move back and forth, so as to enable a plurality of cutting knives 5 to be ground back and forth between the two grindstones 6, thereby reducing the damage of the bluntness of the cutting knife 5 to the alfalfa stalks.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small-sized alfalfa harvester with low damage to alfalfa stalks, characterized in that: include: A harvesting bin (1), wherein a feed inlet and a discharge outlet are respectively provided on two sides of the harvesting bin (1); A protective cover (2), the protective cover (2) being detachably connected to the discharge port; A self-locking wheel (3), wherein the self-locking wheel (3) is provided in a plurality, and the plurality of self-locking wheels (3) are all mounted at the bottom end of the harvesting bin (1); A connecting plate (4), the connecting plate (4) being slidably connected to the feed inlet via a connecting seat; A cutting knife (5), wherein the cutting knife (5) is provided in plurality, and an array of the plurality of cutting knives (5) is arranged on one side of the connecting plate (4); A whetstone (6), wherein two whetstones (6) are provided, the two whetstones (6) are slidably arranged on both sides of the connecting plate (4) towards each other, and an adjustment component is arranged between the two whetstones (6).

2. A small-sized alfalfa harvester with low damage to alfalfa stalks according to claim 1, characterized in that: The adjustment component comprises: A fixing plate (7), wherein the fixing plate (7) is arranged on one side of the harvesting bin (1); A double-headed electric cylinder (8), wherein the double-headed electric cylinder (8) is mounted on one side of the fixed plate (7) via a mounting plate, and an output end of the double-headed electric cylinder (8) is connected through the mounting plate; A driving plate (9), wherein two driving plates (9) are provided, and both driving plates (9) are fixedly connected to the output end of the double-head electric cylinder (8); A driving rod (10) is fixedly connected between each driving plate (9) and an adjacent grindstone (6).

3. A small-sized alfalfa harvester with low damage to alfalfa stalks according to claim 2, characterized in that: The connecting seat comprises: A connection box (11), the connection box (11) being detachably connected to the harvesting bin (1), and the harvesting bin (1) being provided with a groove matching the connection box (11); An electric cylinder (12), wherein the electric cylinder (12) is installed in the connection box (11); A connecting frame (13), wherein the connecting frame (13) is fixedly connected between the output end of the electric cylinder (12) and the connecting plate (4).

4. A small-sized alfalfa harvester with low damage to alfalfa stalks according to claim 3, characterized in that: A positioning frame (14) is fixedly connected between the fixing plate (7) and the connection box (11); a positioning groove matching the positioning frame (14) is provided on the harvesting bin (1); and a positioning screw (15) is threadedly connected between the positioning frame (14) and the harvesting bin (1).

5. The small-sized alfalfa harvester with low damage to alfalfa stalks according to claim 4, characterized in that: The protective cover (2) and the harvesting bin (1) are symmetrically threadedly connected with two connecting screws (16), and the outer side wall of the harvesting bin (1) is provided with connecting screw holes matching the connecting screws (16).

6. The small-sized alfalfa harvester with low damage to alfalfa stalks according to claim 5, characterized in that: A clamping rod (17) is fixedly connected to one side of the connecting plate (4), and a clamping groove matching the clamping rod (17) is provided on the harvesting bin (1).

7. The small-sized alfalfa harvester with low damage to alfalfa stalks according to claim 6, characterized in that: A sliding block (18) is fixedly connected to one side of the driving plate (9), and a sliding groove for the sliding block (18) to slide is provided on the fixed plate (7).

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