A double-bladed knife and a crushing device

Abstract

The utility model relates to a double blade knife, including first broken mechanism, second broken mechanism, the first broken mechanism includes work part, connecting part, the first broken mechanism is bent to one side, the second broken mechanism sets up in the both sides of work part, the work part includes first broken part, the first broken part sets up in the opposite side of bending direction, the second broken mechanism includes second broken part. Through the first broken mechanism is provided with work part to the straw is broken, through connecting part connects double blade knife to the broken device, through the second broken mechanism sets up with the both sides of work part to make first broken part and second broken part cooperate and break the straw under, can improve the efficiency of cutting the straw, and avoids the soil convolution to the straw, improves the broken efficiency of straw, is favorable to returning to the field.

Description

Technical Field

[0001] This utility model relates to the field of rotary tillage technology, specifically to a double-edged blade and a crushing device. Background Technology

[0002] Returning straw to the field is an important agricultural measure that has a significant impact on soil fertility and environmental protection. The main method of returning crop straw to the field is to use rotary tillers to crush it and return it directly to the field. However, since rotary tillers are mainly used for turning the soil and do not take into account the toughness of the straw, the tillage efficiency is slow and the engine load is high.

[0003] Currently, the cutting part of the rotary tiller blade contacts the soil first. The cutting part of the rotary tiller blade has great resistance when contacting the straw. After harvesting, the straw grows messily in the field. The rotary tiller blade is not good at cutting the straw, and it also leads to poor soil breaking effect, which is not conducive to straw returning to the field.

[0004] In addition, when the rotary tiller blades hit the soil, the front end of the blades tends to pick up soil and cover the straw. The blades are not easy to cut off the straw mixed with soil, resulting in low straw crushing efficiency and making it difficult to return the straw to the field. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a double-edged blade, comprising a first crushing mechanism and a second crushing mechanism. The first crushing mechanism includes a working part and a connecting part; the working part and the connecting part can be integrally formed.

[0006] The first crushing mechanism bends to one side, and the second crushing mechanism is disposed on both sides of the working part. The working part includes a first crushing part, which is disposed on the side opposite to the bending direction. The second crushing mechanism includes a second crushing part.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: the first crushing mechanism is provided with a working part to crush the straw, the double-edged blade is connected to the crushing device through the connecting part, and the second crushing mechanism is provided on both sides of the working part, so that the first crushing part and the second crushing part work together to crush the straw, which can improve the efficiency of straw cutting, and avoid soil from accumulating on the straw, thereby improving the straw crushing efficiency and facilitating its return to the field.

[0008] Furthermore, the working part and the connecting part are located on the same plane;

[0009] Preferably, the working part further includes a support body, and the first crushing part is disposed on the support body.

[0010] More preferably, the support body is an arc-shaped plate, and the connecting part is a straight plate;

[0011] More preferably, the first breaking part is disposed on the outer arc of the support body, and the first breaking part is arc-shaped.

[0012] The beneficial effects of adopting the above-mentioned further technical solution are as follows: By having the working part and the connecting part located on the same plane, the first crushing mechanism can form a straight blade structure, which can reduce the resistance of the first crushing part in contact with straw and soil, improve the efficiency of cutting straw, and prevent soil from accumulating on straw. This allows the first crushing part to quickly crush straw and soil, improving the straw crushing efficiency and facilitating its return to the field. The first crushing part is provided on the support body one, which enhances its strength. The support body one is an arc-shaped plate, which helps improve the mechanical strength of the first crushing mechanism. The connection between the arc-shaped plate and the straight plate allows the first crushing mechanism to form a straight blade structure. The first crushing part is located on the outer arc of the support body one, and its arc shape reduces the resistance of the first crushing part in contact with soil and straw, enabling the first crushing part to quickly crush straw and soil, thus improving the crushing effect of the first crushing mechanism.

[0013] Furthermore, the second crushing mechanism includes a second support body, and the second crushing part is disposed on the second support body;

[0014] Preferably, the second crushing mechanism is arranged perpendicular to the working part.

[0015] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting a second crushing part on the second support body, the strength of the second crushing mechanism can be enhanced; by setting the second crushing mechanism perpendicular to the working part, the lateral crushing area on both sides of the working part can be increased, thereby improving the crushing efficiency of straw and soil.

[0016] Furthermore, the second crushing mechanisms on both sides of the working section are staggered;

[0017] Preferably, the edge of the second crushing part is located below the first crushing part.

[0018] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by staggering the second crushing mechanisms on both sides of the working part, the contact time between the two second crushing mechanisms and the soil can be reduced, thus reducing the rotary tillage resistance. By placing the edge of the second crushing part below the first crushing part, the operation of the first crushing part and the second crushing part can be made to not interfere with each other, thereby improving the crushing efficiency.

[0019] Furthermore, the front end of the working part is connected to a rearwardly inclined guide part, and a buffer part is connected between the guide part and the first crushing part;

[0020] Preferably, the included angle between the guide portion and the buffer portion is 60°-180°;

[0021] Furthermore, the connecting part is provided with a mounting hole and a limiting notch, and the limiting notch is located on one side of the connecting part that is connected to an inner arc of the support body.

[0022] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting a rearward inclined guide at the front end of the working part, the resistance of the first mechanism can be reduced; the buffer part can reduce the wear of the guide part, which is conducive to improving the crushing effect; by setting the included angle between the guide part and the buffer part at 60°-180°, the tip of the first crushing mechanism can have a long service life and a good crushing effect after being subjected to force; the double-edged blade can be connected to the mechanical device through the mounting hole; and the limiting notch can absorb the reaction force of the crushing device, improving the stability of the connection between the double-edged blade and the mechanical device.

[0023] Furthermore, the length of the working part is 580mm-650mm, and the length of the connecting part is 500mm-550mm.

[0024] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by having a working part length of 580mm-650mm and a connecting part length of 500mm-550mm, the double-edged blade is durable and not easily bent, and the crushing efficiency of the double-edged blade is high.

[0025] Furthermore, the working part bends toward the side facing the first or second crushing part; preferably, the bending height is h, where h is 20-35mm.

[0026] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by bending the working part toward the side facing the first crushing part or the second crushing part, the crushing area of ​​the crushing part can be increased, thereby increasing the efficiency of crushing straw.

[0027] A crushing device includes a cutter cylinder with a plurality of double-edged blades arranged at intervals on the cutter cylinder. Stabilizing discs are provided at both ends of the cutter cylinder, and an anti-winding mechanism is provided between the stabilizing discs.

[0028] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting a number of double-edged blades arranged at intervals on the blade cylinder, the blade cylinder rotates and drives the double-edged blades to till around the blade cylinder. By setting stabilizing discs at both ends of the blade cylinder, the stability of the crushing device can be improved, and the excessive resistance between the double-edged blades and the ground can be avoided, thus improving the stability of the crushing device.

[0029] Furthermore, the first crushing mechanism of the double-edged blade is arranged perpendicular to the blade barrel;

[0030] Preferably, the first crushing section is arranged perpendicular to the cutter barrel, and the second crushing section is arranged parallel to the cutter barrel.

[0031] The beneficial effects of adopting the above-mentioned further technical solution are as follows: By setting the first crushing mechanism perpendicular to the cutter cylinder, the first crushing mechanism can make vertical contact with the straw or soil, which can reduce the resistance of the first crushing mechanism in contact with the straw and soil and avoid soil entrapment. By setting the first crushing part perpendicular to the cutter cylinder and the second crushing part parallel to the cutter cylinder, the first crushing mechanism can make vertical contact with the straw, which can quickly cut the horizontally growing straw. The second crushing part makes horizontal contact with the straw, which can quickly cut the vertically growing straw, thus improving the straw crushing efficiency and facilitating straw return to the field.

[0032] Furthermore, the distance from the tip of the buffer section connected to the first crushing section to the shaft center of the cutter barrel is 170mm-220mm, the distance from the connection point of the connecting section and the working section to the shaft center of the cutter barrel is 80mm-120mm, and the closest distance from the second crushing section to the shaft center of the cutter barrel is 70mm-110mm.

[0033] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the distance from the tip to the shaft of the cutter barrel is 170mm-220mm, the distance from the connection between the connecting part and the working part to the shaft of the cutter barrel is 80mm-120mm, and the closest distance from the second crushing part to the shaft of the cutter barrel is 70mm-110mm. This enables the double-edged blade to work stably on the cutter barrel, improves the crushing efficiency of straw and soil, and facilitates straw return to the field. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a double-edged knife in Embodiment 1 of this utility model. Figure 1 ;

[0035] Figure 2 This is a schematic diagram of the structure of a double-edged knife in Embodiment 1 of this utility model. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the structure of a double-edged knife in Embodiment 1 of this utility model. Figure 3 ;

[0037] Figure 4 This is a schematic diagram of the structure of a double-edged knife in Embodiment 2 of this utility model. Figure 1 ;

[0038] Figure 5 This is a schematic diagram of the structure of a crushing device according to the present invention;

[0039] 1. First crushing mechanism; 11. Working part; 111. First crushing part; 112. Support body one; 113. Guide part; 114. Buffer part; 12. Connecting part; 121. Mounting hole; 122. Limiting notch; 2. Second crushing mechanism; 21. Second crushing part; 22. Support body two; 3. Cutter barrel; 4. Stabilizing plate; 5. Anti-winding mechanism. Detailed Implementation

[0040] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] Example 1:

[0042] This embodiment provides a method such as Figure 1-5 The illustrated double-edged blade includes a first crushing mechanism 1 and a second crushing mechanism 2. The first crushing mechanism 1 includes a working part 11 and a connecting part 12; the working part 11 and the connecting part 12 can be integrally formed. The second crushing mechanism 2 is disposed on both sides of the working part 11. The working part 11 includes a first crushing part 111, which is disposed on the side with opposite bending directions. The second crushing mechanism 2 includes a second crushing part 21, and the cutting edges of the first crushing part 111 and the second crushing part 21 face the same direction. The first crushing mechanism 1, with its working part 11, crushes straw. The double-edged blade is connected to the crushing device via the connecting part 12. The second crushing mechanism 2, disposed on both sides of the working part 11, with the cutting edges of the first crushing part 111 and the second crushing part 21 facing the same direction, allows the first crushing part 111 and the second crushing part 21 to work together to crush straw, improving the efficiency of straw cutting and preventing soil from accumulating on the straw, thus increasing the straw crushing efficiency and facilitating its return to the field.

[0043] Furthermore, the working part 11 and the connecting part 12 are located on the same plane; preferably, the working part 11 further includes a support body 112, and the first crushing part 111 is disposed on the support body 112; preferably, the support body 112 is an arc-shaped plate, and the connecting part 12 is a straight plate; even more preferably, the first crushing part 111 is disposed on the outer arc of the support body 112, and the first crushing part 111 is arc-shaped. By having the working part 11 and the connecting part 12 located on the same plane, the first crushing mechanism 1 can form a straight blade structure, which reduces the resistance of the first crushing part 111 in contact with straw and soil, improves the efficiency of straw cutting, and avoids soil accumulating on the straw. This allows the first crushing part 111 to quickly crush the straw and soil, improving the straw crushing efficiency and facilitating its return to the field. The first crushing part 111 is mounted on the support body 112, enhancing its strength. The support body 112 is an arc-shaped plate, which helps improve the mechanical strength of the first crushing mechanism 1. The connection between the arc-shaped plate and the straight plate allows the first crushing mechanism 1 to form a straight blade structure. The first crushing part 111 is located on the outer arc of the support body 112, and its arc shape reduces the resistance of the first crushing part 111 in contact with soil and straw, allowing it to quickly crush the straw and soil, thus improving the crushing effect of the first crushing mechanism 1.

[0044] Furthermore, the second crushing mechanism 2 includes a second support body 22, and the second crushing part 21 is disposed on the second support body 22; preferably, the second crushing mechanism 2 is disposed perpendicular to the working part 11. By disposing of the second crushing part 21 on the second support body 22, the strength of the second crushing mechanism 2 can be enhanced. By disposing of the second crushing mechanism 2 perpendicular to the working part 11, the transverse crushing area on both sides of the working part 11 can be increased, thereby improving the crushing efficiency of straw and soil.

[0045] Furthermore, the second crushing mechanisms 2 on both sides of the working part 11 are staggered; more preferably, the edge of the second crushing part 21 is located below the first crushing part 111. By staggering the second crushing mechanisms 2 on both sides of the working part 11, the difference in contact time between the two second crushing mechanisms 2 and the soil can be reduced, thus reducing rotary tillage resistance. By having the edge of the second crushing part 21 located below the first crushing part 111, the operation of the first crushing part 111 and the second crushing part 21 can be made to work without interference, thereby improving crushing efficiency.

[0046] Furthermore, the front end of the working part 11 is connected to a rearwardly inclined guide part 113, and a buffer part 114 is connected between the guide part 113 and the first crushing part 111; preferably, the included angle between the guide part 113 and the buffer part 114 is 60°-180°. By providing a rearwardly inclined guide part 113 at the front end of the working part 11, the resistance experienced by the first mechanism can be reduced, and the buffer part 114 can reduce the wear experienced by the guide part 113, which is beneficial to improving the crushing effect. The included angle between the guide part 113 and the buffer part 114 is 60°-180°, which can extend the service life of the tip of the first crushing mechanism 1 after being subjected to force and improve the crushing effect.

[0047] Furthermore, the connecting portion 12 is provided with a mounting hole 121 and a limiting notch 123. The limiting notch 123 is located on one side of the connecting portion 12 that connects to the inner arc of the support body 112. The mounting hole 121 connects the double-edged blade to the mechanical device, and the limiting notch 123 absorbs the reaction force received by the crushing device, improving the stability of the connection between the double-edged blade and the mechanical device.

[0048] Furthermore, the length of the working part 11 is 580mm-650mm, and the length of the connecting part 12 is 500mm-550mm. The 580mm-650mm length of the working part 11 and the 500mm-550mm length of the connecting part 12 make the double-edged blade durable and less prone to bending, thus enabling high crushing efficiency.

[0049] A crushing device includes a cutter cylinder 3 with a plurality of double-edged blades arranged at intervals on the cutter cylinder 3. Stabilizing discs 4 are located at both ends of the cutter cylinder 3, and an anti-winding mechanism 5 is provided between the stabilizing discs 4. The cutter cylinder 3 rotates due to the spaced-apart double-edged blades, causing the double-edged blades to till around the cylinder 3. The stabilizing discs 4 at both ends of the cutter cylinder 3 improve the stability of the crushing device and prevent excessive resistance when the double-edged blades are in contact with the ground, thus enhancing the overall stability of the crushing device.

[0050] Furthermore, the first crushing mechanism 1 of the double-edged blade is arranged perpendicularly to the blade cylinder 3; preferably, the first crushing part 111 is arranged perpendicularly to the blade cylinder 3, and the second crushing part 21 is arranged parallel to the blade cylinder 3. By arranging the first crushing mechanism 1 perpendicularly to the blade cylinder 3, the first crushing mechanism 1 can make vertical contact with the straw or soil, reducing the resistance between the first crushing mechanism 1 and the straw and soil, and preventing soil entrapment. By arranging the first crushing part 111 perpendicularly to the blade cylinder 3 and the second crushing part 21 parallel to the blade cylinder 3, the first crushing mechanism 1 makes vertical contact with the straw, enabling rapid cutting of laterally growing straw, while the second crushing part 21 makes lateral contact with the straw, enabling rapid cutting of longitudinally growing straw, thus improving straw crushing efficiency and facilitating straw return to the field.

[0051] Furthermore, the distance from the tip of the buffer section 114 connected to the first crushing section 111 to the axis of the cutter barrel 3 is 170mm-220mm, the distance from the connection point of the connecting section 12 and the working section 11 to the axis of the cutter barrel 3 is 80mm-120mm, and the closest distance from the second crushing section 21 to the axis of the cutter barrel 3 is 70mm-110mm. With the distance from the tip to the axis of the cutter barrel 3 being 170mm-220mm, the distance from the connection point of the connecting section 12 and the working section 11 to the axis of the cutter barrel 3 being 80mm-120mm, and the closest distance from the second crushing section 21 to the axis of the cutter barrel 3 being 70mm-110mm, the double-edged blade can work stably on the cutter barrel 3, improving the crushing efficiency of straw and soil, and facilitating straw return to the field.

[0052] Example 2:

[0053] like Figure 4 As shown: The content that is the same as in Example 1 will not be repeated; the differences between this embodiment and Example 1 are as follows:

[0054] The working part bends toward the side facing the first or second crushing part; preferably, the bending height is h, where h is 20-35mm. By bending the working part toward the side facing the first or second crushing part, the crushing area of ​​the crushing part can be increased, thereby increasing the efficiency of crushing straw.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A double-edged knife, characterized in that, It includes a first crushing mechanism (1) and a second crushing mechanism (2). The first crushing mechanism (1) includes a working part (11) and a connecting part (12), which are integrally formed. The first crushing mechanism (1) bends to one side, and the second crushing mechanism (2) is arranged on both sides of the working part (11). The working part (11) includes a first crushing part (111), which is arranged on the side opposite to the bending direction. The second crushing mechanism (2) includes a second crushing part (21).

2. The double-edged knife according to claim 1, characterized in that, The working part (11) and the connecting part (12) are located on the same plane; The working part (11) also includes a support body (112), and the first crushing part (111) is disposed on the support body (112); The support body (112) is an arc-shaped plate, and the connecting part (12) is a vertical plate or an L-shaped plate, and the arc-shaped plate and the vertical plate are connected; The first crushing part (111) is disposed on the outer arc of the support body (112), and the first crushing part (111) is arc-shaped.

3. The double-edged knife according to claim 2, characterized in that, The second crushing mechanism (2) includes a second support body (22), and the second crushing part (21) is disposed on the second support body (22); The second crushing mechanism (2) is set perpendicular to the working part (11).

4. The double-edged knife according to claim 3, characterized in that, The second crushing mechanisms (2) on both sides of the working part (11) are staggered; The maximum width of the second crushing mechanism (2) is not greater than the width of the first crushing mechanism (1).

5. The double-edged knife according to claim 1, characterized in that, The front end of the working part (11) is connected to a rearwardly inclined guide part (113), and a buffer part (114) is connected between the guide part (113) and the first crushing part (111). The included angle between the guide part (113) and the buffer part (114) is 60°-180°; The connecting part (12) is provided with a mounting hole (121) and a limiting notch (122), and the limiting notch (122) is located on one side of the connecting part (12) which is connected to the inner arc of the support body (112).

6. The double-edged knife according to claim 1, characterized in that, The length of the working part (11) is 580mm-650mm, and the length of the connecting part (12) is 500mm-550mm.

7. The double-edged knife according to claim 1, characterized in that, The working part bends toward the side toward which the first crushing part or the second crushing part is facing; The bending height is h, and h is 20-35 mm.

8. A crushing device, characterized in that, Includes the double-edged knife as described in any one of claims 1-7; The crushing device also includes a cutter cylinder (3), on which a number of double-edged blades are provided. The double-edged blades are arranged at intervals on the cutter cylinder (3). Stabilizing discs (4) are provided at both ends of the cutter cylinder (3), and an anti-winding mechanism (5) is provided between the stabilizing discs (4).

9. The crushing device according to claim 8, characterized in that, The first crushing mechanism (1) of the double-edged blade is arranged perpendicularly to the blade cylinder (3); The first crushing section (111) is arranged perpendicularly to the cutter barrel (3), and the second crushing section (21) is arranged parallel to the cutter barrel (3).

10. The crushing device according to claim 9, characterized in that, The distance from the tip of the buffer part (114) connected to the first crushing part (111) to the axis of the cutter barrel (3) is 170mm-220mm, the distance from the connection point of the connecting part (12) and the working part (11) to the axis of the cutter barrel (3) is 80mm-120mm, and the closest distance from the second crushing part (21) to the axis of the cutter barrel (3) is 70mm-110mm.

Images