Auxiliary grass crushing mechanism of crushing knife and crushing device

Abstract

The utility model discloses an auxiliary grass crushing mechanism and crushing device of broken knife, including fixed part and grass crushing work part, the grass crushing work part is connected with fixed part, the grass crushing work part is bent to fixed part, the grass crushing work part includes support body no.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, specifically relating to an auxiliary grass-chopping mechanism and crushing device for a grass-chopping blade. Background Technology

[0002] In farmland cultivation, soil breaking and tilling are usually accomplished by crushing devices. Among them, the crushing blades in the crushing device are the core working components, and their performance and service life directly determine the working effect and efficiency of the rotary tiller.

[0003] When tilling hard soil such as dry land, the breaker blades encounter great resistance when entering the soil, resulting in poor soil penetration and even easy damage to the breaker blades. Frequent replacement of the breaker blades leads to a significant waste of costs.

[0004] Currently, the existing grass shredder connects the grass shreds to the front end of the blade. When the existing grass shredder is working, it is simultaneously shredding grass. When the grass shreds encounter high resistance, they will exert corresponding resistance on the front end of the blade. The grass shreds and the blade pull on each other, which can cause the blade to deform due to the increased resistance, making it difficult for the blade to penetrate the soil effectively.

[0005] To address this, our company has developed an auxiliary grass-chopping mechanism and device for the shredder, which improves the soil penetration and grass-chopping effect of the shredder. Utility Model Content

[0006] To address the above problems, this utility model designs an auxiliary grass-chopping mechanism for a grass-chopping blade, including a fixing part and a grass-chopping working part. The grass-chopping working part is connected to the fixing part and bends toward the fixing part. The grass-chopping working part includes a support body and a first cutting part is provided on the support body.

[0007] The crushing blade includes a connecting part and a crushing working part, and the fixing part is connected to the connecting part;

[0008] The fixing part is provided with a plurality of connecting holes 1, and the connecting part is provided with a plurality of connecting holes 3, the connecting holes 1 and the connecting holes 3 cooperate with each other.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: By connecting the grass-chopping working part and the fixing part, the overall strength and stability of the grass-chopping mechanism can be improved; by bending the grass-chopping working part to one side, it can cut weeds from two directions, reducing the resistance of the grass-chopping mechanism and improving the grass-chopping effect; the support body supports the first cutting part, enabling the first cutting part to chop grass efficiently; by connecting the fixing part and the connecting part of the crushing blade, when the grass-chopping working part of the grass-chopping mechanism encounters resistance, the resistance is transmitted to the crushing blade. The connecting part of the shredder avoids mutual interference between the working parts of the shredder mechanism and the shredder blade. At the same time, it can support the shredder mechanism and the shredder blade during rotary tillage, improve the strength of the shredder mechanism and the shredder blade during operation, prevent the shredder blade from deforming as a whole, and improve the shredding effect of the shredder blade. The fixing part is provided with several connecting holes 1 and several connecting holes 3. The connecting holes 1 and connecting holes 3 are interconnected, which can make the shredder blade and the shredder mechanism reinforce each other, improve the shredding effect of the shredder blade and the shredder mechanism as shown in the figure.

[0010] Furthermore, the blade of the first cutting part is bent; preferably, the included angle of the bend of the grass-chopping working part is greater than or equal to 90°.

[0011] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the blade of the first cutting part is bent, which enables the first cutting part to cut weeds in both horizontal and vertical directions, thereby reducing the resistance to cutting weeds and requiring less effort compared to cutting weeds in one direction, thus improving the weed shredding effect; the included angle of the bending of the weed shredding working part is greater than or equal to 90°, which enables the angle of contact between the weeds and soil when the weed shredding working part rotates during rotary tillage to be less than or equal to 90°, thereby reducing the resistance of the weed shredding working part in shredding weeds and entering the soil.

[0012] Furthermore, the fixing part is provided with a plurality of connection holes;

[0013] Preferably, the fixing part is plate-shaped.

[0014] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by providing several connection holes on the fixing part, it is possible to achieve simple connection with the crushing device; by making the fixing part plate-shaped, the strength of the straw crushing mechanism can be increased, and the stability of the straw crushing mechanism during operation can be improved.

[0015] Furthermore, the front end of the support body is provided with a rearwardly inclined guide portion, and a buffer portion is connected between the guide portion and the first cutting portion.

[0016] Preferably, the included angle between the guide portion and the buffer portion is 60°-180°.

[0017] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting a rearward inclined guide part at the front end of the support body one, the resistance of the first mechanism can be reduced, the buffer part one can reduce the wear of the guide part, which is conducive to improving the grass shredding effect. By setting the included angle between the guide part and the buffer part one at 60°-180°, the tip of the grass shredding mechanism can have a long service life and a good shredding effect after being subjected to force.

[0018] Furthermore, the fixing part and the connecting part of the crusher are arranged in parallel, and the fixing part and the connecting part are tightly fitted together;

[0019] Preferably, the width of the fixing part is not wider than the width of the connecting part.

[0020] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting the fixing part parallel to the connecting part and tightly fitting the fixing part to the connecting part, the shredder and the grass-chopping mechanism support each other, which can improve the strength of the shredder and the grass-chopping mechanism; by ensuring that the width of the fixing part is not greater than the width of the shredder connecting part, the strength of the shredder and the grass-chopping mechanism can be improved while avoiding the grass-chopping mechanism from affecting the soil penetration effect of the shredder.

[0021] Furthermore, the connecting portion includes a first side and a second side disposed opposite to each other, and a blade back is formed between the first side and the second side of the connecting portion;

[0022] The shredding working part of the shredder bends towards the back of the connecting part and then towards the first or second side of the connecting part. The side of the shredding working part away from the fixing part does not exceed the bending point of the shredder towards the back of the connecting part.

[0023] Preferably, the grass-chopping working part is connected to the first side or the second side of the connecting part, and the orientation of the end of the grass-chopping working part is the same as or opposite to the orientation of the crushing working part when it bends again;

[0024] Preferably, the crushing working part is provided with a first crushing part on the side opposite to the back of the blade, and the first crushing part and the first cutting part are oriented in the same direction.

[0025] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by ensuring that the side of the grass-chopping working part away from the fixed part does not exceed the bend of the blade from the back of the crushing blade to the connecting part, it is possible to avoid the grass-chopping work being located on the bent part of the crushing blade, thus avoiding affecting the crushing work of the crushing blade and preventing the bent part of the crushing blade from bending when the grass-chopping resistance is high; by connecting the grass-chopping working part to the first or second side of the connecting part, the orientation of the end of the grass-chopping working part is the same as or opposite to the orientation of the crushing working part when it bends again, which can meet different crushing needs and improve the working efficiency of the crushing device.

[0026] Furthermore, the grass-chopping work section is connected to grass-chopping blocks; the grass-chopping blocks include a second support body, the second support body is provided with a second cutting part, and the end of the second support body away from the grass-chopping work section is provided with a second buffer part.

[0027] Preferably, the cutting edge of the second cutting part is straight.

[0028] Preferably, the orientation of the second cutting portion is the same as that of the first cutting portion.

[0029] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting grass shredders on the grass shredding working part, the grass shredding effect of the grass shredding mechanism can be improved; by having the second cutting part of the grass shredding working part oriented in the same direction as the first cutting part, the resistance of the grass shredding mechanism can be reduced, and the grass shredding mechanism can shred grass better.

[0030] Furthermore, a crushing device includes the aforementioned auxiliary grass-chopping mechanism for the crushing blade;

[0031] It includes a blade cylinder, on which a plurality of shredding blade groups are provided, each shredding blade group comprising a plurality of shredding blades, and the grass-shredding mechanism is provided on at least one shredding blade.

[0032] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by connecting the fixed part of the crushing mechanism with the connecting part of the crushing blade, when the crushing working part of the crushing mechanism encounters resistance, the resistance is transmitted to the connecting part of the crushing blade and then to the blade cylinder, thus avoiding mutual interference between the working parts of the crushing mechanism and the crushing blade. At the same time, during rotary tillage, the crushing mechanism and the crushing blade can support each other, improving the strength of the crushing mechanism and the crushing blade during operation, preventing the overall deformation of the crushing blade, and improving the crushing effect of the crushing blade.

[0033] Furthermore, a plurality of cutter discs are connected to the cutter cylinder, and the cutter discs are connected to the connecting part of the crushing blade;

[0034] The cutter head is provided with several connecting holes 2, and fixing bolts are provided in connecting holes 1, 2 and 3.

[0035] Preferably, the cutter head is one of a triangular cutter head, a square cutter head, or a pentagonal cutter head.

[0036] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by connecting several cutter discs to the cutter cylinder, several crushing blades can be installed on the cutter discs to form several crushing blade groups. By setting a second connection hole on the cutter disc and a third connection hole on the crushing blade, and setting fixing bolts in the first, second and third connection holes, the crushing blades are installed on the cutter discs, and the grass-chopping mechanism is installed on the crushing blades. By using a cutter disc that is one of a triangular cutter disc, a square cutter disc, or a pentagonal cutter disc, different numbers of crushing blades can be installed on the cutter disc, thereby achieving different crushing effects.

[0037] Furthermore, the crushing working part extends outward along the radial direction of the cutter cylinder, the crushing working part bends radially along the cutter cylinder and then bends axially along the cutter cylinder, the end of the grass-chopping working part bends radially along the cutter cylinder, and the distance from the radial bend of the grass-chopping working part to the axis of the cutter cylinder is less than the distance from the radial bend of the crushing working part to the axis of the cutter cylinder.

[0038] The first crushing part is located on the side opposite to the radial bend of the crushing working part, and the first crushing part and the first cutting part have the same orientation.

[0039] Preferably, the connecting part of the crusher blade is arranged perpendicular to the blade barrel.

[0040] Preferably, the second support body is provided with a second buffer part at the end away from the end connected to the crushing working part.

[0041] More preferably, the crushing working part is provided with crushed grass blocks, and the angle between the crushed grass blocks and the connecting part is greater than or equal to 90°.

[0042] More preferably, the grass shreds are disposed on the shredders at both ends of the blade cylinder, and the grass shreds of the spaced-apart shredders face opposite directions.

[0043] The beneficial effects of adopting the above-mentioned further technical solution are as follows: By bending the end of the grass-chopping working part radially towards the cutter cylinder, the distance from the bend of the grass-chopping working part to the axis of the cutter cylinder is less than the distance from the radial bend of the crushing working part towards the axis of the cutter cylinder. This avoids the grass-chopping working part of the grass-chopping mechanism being located on the bent part of the crushing blade, thus avoiding affecting the crushing work of the crushing blade and preventing the bent part of the crushing blade from bending when the grass-chopping resistance is high. By having the first crushing part and the first cutting part facing the same direction, the crushing working part can efficiently cut the weeds between the gaps of the crushing blade. When the end of the grass-chopping working part faces the same direction as the bending direction of the crushing working part, the crushing efficiency can be improved. The radial cutting area of ​​the shredder and grass-chopping blades enables the shredder to quickly penetrate the soil and cut rapidly. When the end of the grass-chopping working part faces the opposite direction to the bending direction of the shredder working part, the axial cutting area of ​​the shredder and grass-chopping mechanism is increased, allowing for large-area axial cutting of weeds and preventing weeds from tangling on the blade cylinder. By setting the connecting part of the shredder perpendicular to the blade cylinder, the stability of the shredder during operation is improved while enhancing the rotary tillage effect. By setting the connecting part parallel to the fixing part, with the width of the fixing part not exceeding the width of the connecting part of the shredder, the strength of the shredder and grass-chopping mechanism is improved while preventing the grass-chopping mechanism from affecting the penetration effect of the shredder into the soil. By incorporating grass shreds on the shredding section, the weeds in the gaps between the shredding blades can be cut, thus achieving different grass-shredding effects in conjunction with the grass-shredding mechanism. The second support body supports the second cutting section, enabling it to effectively cut the weeds. The second buffer section cushions the force exerted by the grass shreds on the weeds, improving the lifespan of the grass shreds. The straight blade of the second cutting section achieves a different grass-shredding effect compared to a bent blade. The angle between the grass shreds and the connecting part being greater than or equal to 90° reduces the resistance between the grass shreds and the weeds and their penetration into the soil. The shredding blades with grass shreds are positioned at both ends of the blade cylinder, facilitating the installation of the shredding blades at both ends. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the grass-chopping mechanism in Example 1;

[0045] Figure 2 This is a schematic diagram of the structure of the grass-chopping mechanism and the shredder in Example 1;

[0046] Figure 3 This is a schematic diagram of the cutter head structure;

[0047] Figure 4 This is a schematic diagram of the structure of the shredding device with a grass-shredding mechanism in Example 1;

[0048] Figure 5 This is a schematic diagram of the grass shreds structure in Example 2;

[0049] Figure 6This is a schematic diagram of the structure of the shredding device with a grass-shredding mechanism in Example 2;

[0050] The diagram shows the following markings: 1. Grass chopping mechanism; 11. Fixing part; 12. Grass chopping working part; 121. Support body one; 122. First cutting part; 13. Connecting hole one; 14. Guide part; 15. Buffer part one; 2. Cutter cylinder; 3. Crushing blade assembly; 31. Crushing blade; 311. Connecting part; 312. Crushing working part; 313. Connecting hole three; 314. First crushing part; 315. First side; 316. Second side; 317. Blade back; 4. Cutter disc; 41. Connecting hole two; 5. Fixing bolt; 6. Grass shreds; 61. Support body two; 62. Second cutting part; 63. Buffer part two. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.

[0052] This embodiment provides Example 1.

[0053] Please see Figures 1-4An auxiliary grass-chopping mechanism for a grass-chopping blade includes a fixing part 11 and a grass-chopping working part 12. The grass-chopping working part 12 is connected to the fixing part 11 and is bent toward the fixing part 11. The grass-chopping working part 12 includes a support body 121, on which a first cutting part 122 is provided. The grass-chopping blade 31 includes a connecting part 311 and a grass-chopping working part 312. The fixing part 11 is connected to the connecting part 311. The fixing part 11 is provided with a plurality of connecting holes 13, and the connecting part 311 is provided with a plurality of connecting holes 313, which cooperate with each other. By connecting the shredding section 12 to the fixing section 11, the overall strength and stability of the shredding mechanism 1 can be improved. By bending the shredding section 12 to one side, it can cut weeds from two directions, reducing the resistance and improving the shredding effect. The support body 121 supports the first cutting section 122, enabling it to shred weeds efficiently. The fixing section 11 connects to the connecting section 311 of the shredder 31, so that when the shredding section 12 encounters resistance, the resistance is transferred to the connecting section 311 of the shredder 31, preventing... The working parts of the grass-chopping mechanism 1 and the shredder 31 influence each other. At the same time, during rotary tillage, the grass-chopping mechanism 1 and the shredder 31 can support each other, improving the strength of the grass-chopping mechanism 1 and the shredder 31 during operation, preventing the shredder 31 from deforming as a whole, and improving the shredding effect of the shredder 31. The fixing part 11 is provided with several connecting holes 13, and the connecting part 311 is provided with several connecting holes 313. The connecting holes 13 and the connecting holes 313 are interconnected, which enables the shredder 31 and the grass-chopping mechanism 1 to act as reinforcing ribs for each other, improving the grass-chopping effect of the shredder 31 and the grass-chopping mechanism 1 as shown in the figure.

[0054] The blade of the first cutting section 122 is bent; preferably, the included angle of the bend of the grass-chopping working section 12 is greater than or equal to 90°. The bent blade of the first cutting section 122 allows it to cut weeds in both horizontal and vertical directions, reducing resistance to cutting weeds and requiring less effort compared to cutting weeds in one direction, thus improving the grass-chopping effect. Furthermore, the included angle of the bend of the grass-chopping working section 12 is greater than or equal to 90°, ensuring that the angle of contact between the grass-chopping working section 12 and the weeds and soil during rotary tillage is less than or equal to 90°, further reducing resistance to grass chopping and soil penetration.

[0055] The fixing part 11 is provided with a plurality of connecting holes 13; preferably, the fixing part 11 is plate-shaped. By providing a plurality of connecting holes 13 on the fixing part 11, it is possible to achieve simple connection with the crushing device. The plate-shaped fixing part 11 can increase the strength of the grass crushing mechanism 1 and improve the stability of the grass crushing mechanism 1 during operation.

[0056] The front end of the support body 121 is provided with a rearwardly inclined guide portion 14, and a buffer portion 15 is connected between the guide portion 14 and the first cutting portion 122; preferably, the included angle between the guide portion 14 and the buffer portion 15 is 60°-180°. By providing a rearwardly inclined guide portion 14 at the front end of the support body 121, the resistance encountered by the grass-chopping mechanism 1 can be reduced, and the buffer portion 15 can reduce the wear encountered by the guide portion 14, which is beneficial to improving the grass-chopping effect. The included angle between the guide portion 14 and the buffer portion 15 is 60°-180°, which can extend the service life of the tip of the grass-chopping mechanism 1 after being subjected to force and improve the crushing effect.

[0057] The fixing part 11 is arranged parallel to the connecting part 311 of the breaker blade 31, and the fixing part 11 and the connecting part 311 are tightly fitted together; more preferably, the width of the fixing part 11 is not wider than the width of the connecting part 311. By arranging the fixing part 11 parallel to the connecting part 311 and tightly fitting together, the breaker blade 31 and the grass-chopping mechanism 1 support each other, which can improve the strength of the breaker blade 31 and the grass-chopping mechanism 1; by ensuring that the width of the fixing part 11 is not greater than the width of the connecting part 311 of the breaker blade 31, the strength of the breaker blade 31 and the grass-chopping mechanism 1 can be improved while preventing the grass-chopping mechanism 1 from affecting the soil penetration effect of the breaker blade 31.

[0058] The connecting portion 311 includes a first side 315 and a second side 316 disposed opposite to each other, and a blade back 317 is formed between the first side 315 and the second side 316 of the connecting portion 311; the crushing working portion 312 of the crushing blade 31 bends toward the blade back 317 of the connecting portion 311 and then bends toward the first side 315 or the second side 316 of the connecting portion 311, and the side of the grass-chopping working portion 12 away from the fixing portion 11 does not exceed the bending point of the crushing blade 31 toward the blade back 317 of the connecting portion 311; preferably, the grass-chopping working portion 12 is connected to the first side 315 or the second side 316 of the connecting portion 311, and the orientation of the end of the grass-chopping working portion 12 is the same as or opposite to the orientation of the crushing working portion 312 bending again; more preferably, a first crushing portion 314 is provided on the side of the crushing working portion 312 that is opposite to the bending point of the blade back 317, and the first crushing portion 314 has the same orientation as the first cutting portion 122. By ensuring that the side of the grass-chopping working part 12 away from the fixing part 11 does not exceed the bend of the blade 31 from the back of the blade 317 of the connecting part 311, the grass-chopping work of the grass chopped pieces 6 can be prevented from being located on the bent part of the blade 31, thus avoiding affecting the crushing work of the blade 31 and preventing the bent part of the blade 31 from bending when the grass-chopping resistance is high. By connecting the grass-chopping working part 12 to the first side 315 or the second side 316 of the connecting part 311, the orientation of the end of the grass-chopping working part 12 is the same as or opposite to the orientation of the blade 312 when it bends again, which can meet different crushing needs and improve the working efficiency of the crushing device.

[0059] Furthermore, the grass-chopping work section 12 is connected to grass-chopping blocks 6; the grass-chopping blocks 6 include a second support body 61, a second cutting part 62 is provided on the second support body 61, and a second buffer part 63 is provided at the end of the second support body 61 away from the grass-chopping work section 12.

[0060] Preferably, the blade of the second cutting part 62 is straight.

[0061] Preferably, the orientation of the second cutting portion 62 is the same as that of the first cutting portion 122.

[0062] By providing grass-chopping blocks 6 on the grass-chopping working section 12, the grass-chopping effect of the grass-chopping mechanism 1 can be improved. By having the second cutting section 62 of the grass-chopping working section 12 oriented in the same direction as the first cutting section 122, the resistance of the grass-chopping mechanism 1 in chopping grass can be reduced, enabling the grass-chopping mechanism 1 to chop grass better.

[0063] A shredding device includes an auxiliary shredding mechanism for shredding blades as described above; it includes a blade cylinder 2, on which a plurality of shredding blade groups 3 are arranged, each shredding blade group 3 including a plurality of shredding blades 31, and a shredding mechanism 1 disposed on at least one shredding blade 31. Each shredding blade 31 includes a connecting portion 311 and a shredding working portion 312. The shredding mechanism is connected to the connecting portion 311 of the shredding blade 31 by a fixing portion 11, so that when the shredding working portion 12 of the shredding mechanism 1 encounters resistance, the resistance is transmitted to the connecting portion 311 of the shredding blade 31 and then to the blade cylinder 2. This prevents the working portions of the shredding mechanism 1 and the shredding blade 31 from interfering with each other. Simultaneously, during rotary tillage, the shredding mechanism 1 and the shredding blade 31 can support each other, improving the strength of the shredding mechanism 1 and the shredding blade 31 during operation, preventing overall deformation of the shredding blade 31, and improving the shredding effect of the shredding blade 31.

[0064] The cutter cylinder 2 is connected to several cutter discs 4, and the cutter discs 4 are connected to the connecting parts 311 of the crushing blades 31. Several connecting holes 41 are provided on the cutter discs 4, and fixing bolts 5 are installed in the connecting holes 13, 41, and 313. Preferably, the cutter disc 4 is one of a triangular cutter disc 4, a square cutter disc 4, or a pentagonal cutter disc 4. By connecting several cutter discs 4 to the cutter cylinder 2, several crushing blades 31 can be installed on the cutter discs 4 to form several crushing blade groups 3. The cutter disc 4 is provided with a second connection hole 41 and the crushing blade 31 is provided with a third connection hole 313. Fixing bolts 5 are provided in the first connection hole 13, the second connection hole 41 and the third connection hole 313, so that the crushing blade 31 can be installed on the cutter disc 4 and the grass shredding mechanism 1 can be installed on the crushing blade 31. By using a cutter disc 4 that is one of a triangular cutter disc 4, a square cutter disc 4, or a pentagonal cutter disc 4, different numbers of crushing blades 31 can be installed on the cutter disc 4 to achieve different crushing effects.

[0065] This embodiment provides Example 2.

[0066] The content that is the same as in Example 1 will not be repeated here; the different aspects of this example compared to Example 1 are as follows, please refer to [link / reference]. Figures 5-6

[0067] The shredding section 312 is connected to shredded grass 6, which includes a second support body 61. A second cutting section 62 is provided on the second support body 61, and a second buffer section 63 is provided at the end of the second support body 61 away from the connection with the shredding section 312. The shredded grass 6 and the shredding mechanism 1 are not located on the same shredding blade 31. Preferably, the blade of the second cutting section 62 is straight. More preferably, the angle between the shredded grass 6 and the connecting section 311 is greater than or equal to 90°. More preferably, the shredded grass 6 is located on the shredding blades 31 at both ends of the blade cylinder 2, and the shredded grass 6 on the spaced-apart shredding blades 31 face opposite directions. By providing grass shreds 6 on the shredding working part 312, weeds in the gaps between the shredding blades 31 can be cut, thereby achieving different grass shredding effects in conjunction with the grass shredding mechanism 1. The second support body 61 can support the second cutting part 62, enabling the second cutting part 62 to effectively cut the weeds. The second buffer part 63 buffers the force on the grass shreds 6 when cutting weeds, improving the service life of the grass shreds 6. The blade of the second cutting part 62 is straight, which can achieve a different grass shredding effect than a bent blade. The angle between the grass shreds 6 and the connecting part 311 is greater than or equal to 90°, which can reduce the resistance of the grass shreds 6 in contact with weeds and in the soil. The shredding blades 31 with grass shreds 6 are set at both ends of the blade cylinder 2, which can facilitate the installation of the shredding blades 31 at both ends.

[0068] The crushing working part 312 extends radially outward along the cutter cylinder 2. The crushing working part 312 bends radially along the cutter cylinder 2 and then bends axially along the cutter cylinder 2. The end of the grass-chopping working part 12 bends radially towards the cutter cylinder 2. The distance from the radial bend of the grass-chopping working part 12 to the axis of the cutter cylinder 2 is less than the distance from the radial bend of the crushing working part 312 to the axis of the cutter cylinder 2. The first crushing part 314 is located on the side opposite to the radial bend of the crushing working part 312, and the first crushing part 314 faces the same direction as the first cutting part 122. Preferably, the connecting part 311 of the crushing blade 31 is perpendicular to the cutter cylinder 2. More preferably, a buffer part 63 is provided at the end of the support body 2 61 away from the end connected to the crushing working part 312. More preferably, grass clumps 6 are provided on the crushing working part 312, and the angle between the grass clumps 6 and the connecting part 311 is greater than or equal to 90°. More preferably, the grass shreds 6 are disposed on the shredders 31 at both ends of the blade cylinder, and the grass shreds 6 of the spaced-apart shredders 31 face opposite directions. By bending the end of the grass shredder 12 radially toward the blade cylinder 2, the distance from the bend of the grass shredder 12 to the axis of the blade cylinder 2 is less than the distance from the radial bend of the shredder 312 to the axis of the blade cylinder 2. This avoids the grass shredder 12 of the grass shredder mechanism 1 being located on the bent portion of the shredder 31, thus avoiding affecting the shredding work of the shredder 31 and preventing the bent portion of the shredder 31 from bending when the grass shredding resistance is high. By having the first shredder 314 and the first cutting portion 122 face the same direction, the shredder 312 can efficiently cut the weeds between the gaps of the shredder 31. When the end of the grass shredder 12 faces the same direction as the bending direction of the shredder 312, the efficiency of the shredder 31 and the grass shredder blade can be improved. The radial cutting area enables the shredder to quickly penetrate the soil and cut quickly. When the end of the shredder 312 faces the opposite direction to the bending direction of the shredder 312, the axial cutting area of ​​the shredder 31 and the shredder mechanism 1 can be increased, allowing for large-area axial cutting of weeds and preventing weeds from getting tangled in the blade cylinder 2. The connection part 311 of the shredder 31 is set perpendicular to the blade cylinder 2, which can improve the rotary tillage effect while simultaneously improving the stability of the shredder during operation. The connection part 311 is set parallel to the fixing part 11, and the width of the fixing part 11 is not greater than the width of the connection part 311 of the shredder 31, which can improve the strength of the shredder 31 and the shredder mechanism 1 while preventing the shredder mechanism 1 from affecting the penetration effect of the shredder 31 into the soil.

[0069] 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. An auxiliary grass-shredding mechanism for a grass-shredding blade, characterized in that: It includes a fixing part (11) and a grass-chopping work part (12). The grass-chopping work part (12) is connected to the fixing part (11). The grass-chopping work part (12) bends toward the fixing part (11). The grass-chopping work part (12) includes a support body (121). A first cutting part (122) is provided on the support body (121). The crushing blade (31) includes a connecting part (311) and a crushing working part (312), and the fixing part (11) is connected to the connecting part (311); The fixing part (11) is provided with a plurality of connecting holes 1 (13), and the connecting part (311) is provided with a plurality of connecting holes 3 (313), and the connecting holes 1 (13) and the connecting holes 3 (313) cooperate with each other.

2. The auxiliary grass-chopping mechanism of the shredder according to claim 1, characterized in that: The blade of the first cutting part (122) is bent.

3. The auxiliary grass-chopping mechanism of the shredder according to claim 1, characterized in that: The included angle of the bending of the grass-shredding work section (12) is greater than or equal to 90°.

4. The auxiliary grass-chopping mechanism of the shredder according to claim 1, characterized in that: The fixing part (11) is plate-shaped.

5. The auxiliary grass-chopping mechanism of the shredder according to claim 1, characterized in that: The front end of the support body (121) is provided with a rearwardly inclined guide (14), and a buffer part (15) is connected between the guide (14) and the first cutting part (122).

6. The auxiliary grass-chopping mechanism of the shredder according to claim 5, characterized in that: The included angle between the guide part (14) and the buffer part (15) is 60°-180°.

7. The auxiliary grass-chopping mechanism of the shredder according to claim 1, characterized in that: The fixing part (11) and the connecting part (311) of the crusher (31) are arranged in parallel, and the fixing part (11) and the connecting part (311) are closely fitted.

8. The auxiliary grass-chopping mechanism of the shredder according to claim 7, characterized in that: The width of the fixing part (11) is not wider than the width of the connecting part (311).

9. The auxiliary grass-chopping mechanism of the shredder according to claim 1, characterized in that: The connecting part (311) includes a first side (315) and a second side (316) disposed opposite to each other, and a blade back (317) is formed between the first side (315) and the second side (316) of the connecting part (311). The crushing working part (312) of the crusher (31) bends toward the back of the blade (317) of the connecting part (311) and then bends toward the first or second side of the connecting part (311). The side of the straw-chopping working part (12) away from the fixing part (11) does not exceed the bend of the crusher (31) toward the back of the blade (317) of the connecting part (311).

10. The auxiliary grass-chopping mechanism of the shredder according to claim 9, characterized in that: The grass-chopping work section (12) is connected to the first side (315) or the second side (316) of the connecting part (311), and the orientation of the end of the grass-chopping work section (12) is the same as or opposite to the orientation of the crushing work section (312) when it bends again.

11. The auxiliary grass-chopping mechanism of the shredder according to claim 10, characterized in that: The crushing working part (312) is provided with a first crushing part (314) on the side opposite to the back of the blade (317), and the first crushing part (314) and the first cutting part (122) are oriented in the same direction.

12. The auxiliary grass-chopping mechanism of the shredder according to claim 1, characterized in that: The shredding section (12) is connected to shredded grass blocks (6). The grass shreds (6) include a second support body (61), a second cutting part (62) is provided on the second support body (61), and a second buffer part (63) is provided at the end of the second support body (61) away from the grass shredding work part (12).

13. The auxiliary grass-chopping mechanism of the shredder according to claim 12, characterized in that: The blade of the second cutting part (62) is straight.

14. The auxiliary grass-chopping mechanism of the shredder according to claim 12, characterized in that: The orientation of the second cutting portion (62) is the same as that of the first cutting portion (122).

15. A crushing device, characterized in that: Includes the auxiliary grass-chopping mechanism for the shredder as described in any one of claims 1-14; It includes a blade cylinder (2), on which a plurality of shredding blade groups (3) are provided, and the shredding blade groups (3) include a plurality of shredding blades (31). The grass-shredding mechanism (1) is provided on at least one shredding blade (31).

16. The crushing device according to claim 15, characterized in that: The cutter cylinder (2) is connected to a plurality of cutter discs (4), and the cutter discs (4) are connected to the connecting part (311) of the crushing blade (31); The cutter head (4) is provided with several connecting holes 2 (41), and fixing bolts (5) are provided in the connecting holes 1 (13), 2 (41) and 3 (313).

17. The crushing device according to claim 16, characterized in that: The cutter head (4) is one of a triangular cutter head, a square cutter head, or a pentagonal cutter head.

18. The crushing device according to claim 15, characterized in that: The crushing working part (312) extends radially outward along the cutter tube (2). The crushing working part (312) bends radially along the cutter tube (2) and then bends axially along the cutter tube (2). The end of the grass-chopping working part (12) bends radially along the cutter tube (2). The distance from the radial bend of the grass-chopping working part (12) to the axis of the cutter tube (2) is less than the distance from the radial bend of the crushing working part (312) to the axis of the cutter tube (2). The first crushing part (314) is disposed on the opposite side of the radial bend of the crushing working part (312), and the first crushing part (314) and the first cutting part (122) are oriented in the same direction.

19. The crushing device according to claim 15, characterized in that: The connecting part (311) of the crusher (31) is arranged perpendicularly to the blade cylinder (2).

20. The crushing device according to claim 15, characterized in that: The second support (61) is provided with a second buffer (63) at the end away from the end connected to the crushing working part (312).

21. The crushing device according to claim 15, characterized in that: The crushing working part (312) is provided with grass shreds (6), and the angle between the grass shreds (6) and the connecting part (311) is greater than or equal to 90°.

22. The crushing device according to claim 21, characterized in that: The grass shreds (6) are placed on the shredders (31) at both ends of the blade cylinder (2), and the grass shreds (6) of the shredders (31) are arranged at intervals with their orientations opposite.

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