A grass chopping knife and grass chopping machine for chopping grass

Abstract

The invention discloses a grass chopper and a grass chopper for chopping grass, and relates to the technical field of grass choppers, comprising a control conveying component, wherein a combined chopping component is arranged on the upper inner side of the control conveying component, and a rotation speed adjustment component located on the inner side of the control conveying component is arranged on the left side of the combined chopping component; the control conveying component comprises a grass chopper shell; a combined chopping component comprises an adjustment rod; a rotation speed adjustment component comprises a second support rod; and the grass chopper solves the problem that it is difficult to adjust the speed according to the dryness and wetness of straw and other grass materials during the chopping operation, thus facing different straw grass materials, it is difficult to chop, and the size cannot be adjusted according to the needs, and it is difficult to obtain grass materials of different lengths and sizes. At the same time, during the long-term chopping process of the grass chopper, some impurities of the grass materials will adhere to the grass chopper. If the grass chopper is not cleaned, it will rust and shorten the service life of the grass chopper.

Description

Technical Field

[0001] The invention relates to the technical field of grass cutters, and in particular to a grass cutting knife for cutting grass and a grass cutter. Background Art

[0002] With the development of agricultural mechanization, people gradually use lawn choppers to replace manual grass chopping, so as to make livestock feed from straw and forage. A lawn chopper is a mechanical equipment used to cut forage. Farms need to use forage to feed animals (cattle, sheep, etc.). Before feeding the forage to the animals, the forage needs to be chopped to facilitate the animals' eating and digestion. The grass chopper is particularly important in the lawn chopper.

[0003] In the Chinese authorization announcement number CN220755637U, a lawn shredder blade and a lawn shredder are disclosed, wherein the lawn shredder blade comprises a blade body, a blade spline shaft, a blade optical axis and a blade seat, wherein the blade spline shaft and the blade optical axis are connected at both ends of the blade body, and three blade seat groups are distributed on the blade body, the three blade seat groups are evenly distributed along the circumference of the blade body and differ by 120°, and each blade seat group comprises at least six blade seats; the lawn shredder comprises the aforementioned lawn shredder blade, which solves the problem of center of gravity offset and shortened life.

[0004] Compared with the above-mentioned lawn chopper, the following defects still exist: during the chopping operation of straw and other grass materials, it is difficult to adjust the speed according to the dryness and wetness of the straw, which leads to the problem of difficulty in chopping different straw and grass materials, and the size cannot be adjusted according to needs, and it is difficult to obtain grass materials of different lengths and sizes. At the same time, during the long-term chopping process of the grass chopper, some impurities of the grass will adhere to the grass chopper. If it is not cleaned, the grass chopper will rust, resulting in a shortened life. Summary of the invention

[0005] The purpose of the present invention is to provide a grass chopper and a grass chopper for chopping grass, so as to solve the following technical problems: during the chopping operation of straw and other grass materials, it is difficult to adjust the speed according to the dryness and wetness of the straw, so that different straw grass materials are difficult to chop, and the size cannot be adjusted according to needs, and it is difficult to obtain grass materials of different lengths and sizes. At the same time, during the long-term chopping process of the grass chopper, some impurities of the grass will adhere to the grass chopper. If it is not cleaned, the grass chopper will rust and shorten its service life.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A grass chopper for chopping grass, a control conveying assembly, a combined shredding assembly is arranged on the upper inner side of the control conveying assembly, and a rotation rate adjustment assembly located on the inner side of the control conveying assembly is arranged on the left side of the combined shredding assembly;

[0008] The control conveying assembly comprises a grass shredder housing, a support frame is installed at the lower part of the grass shredder housing, a linkage shaft roller is arranged on the inner side of the support frame, and a first conveyor belt and a second conveyor belt are arranged on the outer side of the linkage shaft roller from left to right;

[0009] A combined shredder assembly comprises an adjusting rod, a first support rod is arranged outside the right end of the adjusting rod, a movable connecting rod is arranged inside the lower side of the first support rod, a grass shredder body is arranged below the movable connecting rod, an external expansion frame is arranged at both left and right ends of the first support rod, and a brush head is arranged inside the lower end of the external expansion frame;

[0010] A rotation rate adjustment component; includes a second support rod, a first adjustment disk is arranged on the left side of the lower end of the second support rod, a second adjustment disk is arranged on the right side of the first adjustment disk, a third adjustment disk is arranged below the second adjustment disk, and a fourth adjustment disk is connected to the left end of the third adjustment disk.

[0011] As a further solution of the present invention: side baffles are provided at both the front and rear ends of the linkage shaft roller, and a receiving platform connected to the grass cutter shell is provided on the inner side of the linkage shaft roller and the second conveyor belt, and a groove is provided on the inner side of the receiving platform.

[0012] As a further solution of the present invention: the adjusting rod is connected to the first supporting rod by means of threads, and the movable connecting rod forms a snap-fit ​​lifting structure on the inner side of the first supporting rod.

[0013] As a further solution of the present invention: a first adjusting bolt is arranged on the front side of the upper inner end of the grass cutting blade body, and a second adjusting bolt is arranged on the rear side of the inner end of the first adjusting bolt. The first adjusting bolt passes through the grass cutting blade body and the movable connecting rod and the second adjusting bolt in sequence and are connected by threads.

[0014] As a further solution of the present invention: the left and right end surfaces of the grass cutter body are fitted with the brush head, and the brush head and the expansion frame are connected by bonding, and the longitudinal section of the grass cutter body is a triangle.

[0015] As a further solution of the present invention: a movable support rod connected to the lawn mower housing is disposed on the left side of the first adjusting disk and the right side of the second adjusting disk, and the movable support rod forms a snap-fit ​​sliding structure in the lawn mower housing.

[0016] As a further solution of the present invention: the second adjustment disk is connected to the third adjustment disk in an engaging manner, and can be engaged with the fourth adjustment disk when the first adjustment disk is moved, the right end of the third adjustment disk is fixedly installed with a first bevel gear disk, and a second bevel gear disk is arranged on the inner side of the right end of the first bevel gear disk, and a fixed rocker is arranged at the outer end of the second bevel gear disk.

[0017] As a further solution of the present invention: a movable sleeve rod is arranged on the outer side of the fixed rocker, a limiting groove body connected to the fixed rocker is opened on the inner side of the second support rod, and a limiting frame connected to the lawn mower housing is arranged on the outer side of the upper end of the movable sleeve rod.

[0018] As a further solution of the present invention: the first bevel gear disc and the second bevel gear disc are connected in a meshing manner, and the fixed rocker arm fixedly connected to the rear end of the second bevel gear disc forms a fitting sliding structure in the movable sleeve rod through a limiting groove, and the movable sleeve rod forms a nested lifting structure in the limiting frame.

[0019] A grass chopping knife for chopping grass, wherein a reserved hole groove is provided on the inner side of the upper end of the grass chopping knife body, and convex structures are provided on both the front and rear sides of the upper surface of the grass chopping knife body.

[0020] Beneficial effects of the present invention:

[0021] 1. The first adjusting disk and the second adjusting disk are both connected to the movable support rod through built-in bearings to form a rotating structure. When the motor is turned on to rotate the movable support rod, the second adjusting disk can drive the third adjusting disk to rotate. At this time, if the adjusting rod rotates to drive the second support rod to move to the right, the second adjusting disk can be disengaged from the meshing state with the third adjusting disk, so that the first adjusting disk is meshed and connected with the fourth adjusting disk, so as to achieve the function of speed regulation, which is convenient for speed adjustment according to needs;

[0022] At the same time, when the adjusting rod is rotated, the first support rod can be moved synchronously. Since the first adjusting bolt sequentially penetrates the grass-chopping blade body and the movable connecting rod and the second adjusting bolt for threaded connection, the grass-chopping blade body can be firmly connected and installed, and it is also convenient to perform lateral adjustment at the same time, so as to adjust the length of the straw according to the needs.

[0023] In addition, both left and right sides of the lower end of the first support rod are provided with an outward expansion frame, and the inner side of the outward expansion frame is bonded and connected with a brush head. When the grass shredder body as a whole moves up and down quickly, the impurities and dust adhering to the outer surface of the grass shredder body can be cleaned through the fitting connection between the left and right surfaces of the grass shredder body and the brush head, thereby avoiding the problem of rust caused by long-term use and affecting the service life;

[0024] 2. The first bevel gear disc and the second bevel gear disc are connected in a meshing manner, and the second bevel gear disc forms a fitting sliding structure in the movable sleeve rod through a limiting groove. When the second bevel gear disc rotates, the movable sleeve rod can perform a locking lifting movement in the limiting frame, so as to drive the grass shredder body to move and shred the straw grass material;

[0025] At the same time, a groove located on the inner side of the receiving platform is opened under the grass chopped blade body to protect the grass chopped blade body from damage. When the motor is turned on to rotate the linked shaft roller, the first conveyor belt and the second conveyor belt can be driven to transport the straw and forage stably, and the side baffles arranged at the front and rear ends of the linked shaft roller can prevent straw and other forage from falling. The speed adjustment can achieve stable and fast chopping, which effectively improves the practical effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the grass cutting knife body of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the front cross section of the present invention;

[0029] Figure 3 It is a schematic structural diagram of a side cross-section of the present invention;

[0030] Figure 4 The present invention Figure 3 The enlarged structural diagram at A in the middle;

[0031] Figure 5 It is a schematic diagram of the structure of the top cross section of the present invention;

[0032] Figure 6 It is a schematic diagram of the overall structure of the connection between the movable sleeve rod and the limiting frame of the present invention;

[0033] Figure 7 It is a schematic diagram of the overall structure of the connection between the movable connecting rod and the grass cutting knife body of the present invention.

[0034] In the figure: 1, control conveying assembly; 2, combined shredding assembly; 3, rotation rate adjustment assembly; 101, grass shredder housing; 102, support frame; 103, linkage shaft roller; 104, side baffle; 105, first conveyor belt; 106, receiving platform; 107, slot; 108, second conveyor belt; 201, adjustment rod; 202, first support rod; 203, movable connecting rod; 204, grass shredder body; 205, first Adjusting bolt; 206, second adjusting bolt; 207, outward expansion frame; 208, brush head; 301, second support rod; 302, first adjusting disk; 303, second adjusting disk; 304, movable support rod; 305, third adjusting disk; 306, fourth adjusting disk; 307, first bevel gear disk; 308, second bevel gear disk; 309, fixed rocker; 310, movable sleeve rod; 311, limit slot; 312, limit frame. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-7 As shown, the present invention is a grass chopper and a grass chopper for chopping grass.

[0037] Embodiment 1

[0038] See also Figure 1-Figure 5 and Figure 7The present invention provides a technical solution: a reserved hole groove is provided on the inner side of the upper end of the grass shredder body 204, and convex structures are provided on both the front and rear sides of the upper surface of the grass shredder body 204; a combined shredder assembly 2; comprising an adjusting rod 201, a first support rod 202 is provided on the outer side of the right end of the adjusting rod 201, a movable connecting rod 203 is provided on the lower side of the inner side of the first support rod 202, a grass shredder body 204 is provided below the movable connecting rod 203, an external expansion frame 207 is provided on both the left and right ends of the first support rod 202, and a brush head 208 is provided on the inner side of the lower end of the external expansion frame 207; a screw is used between the adjusting rod 201 and the first support rod 202 The grass chopping blade body 204 is connected in a threaded manner, and the movable connecting rod 203 forms a snap-fit ​​lifting structure on the inner side of the first support rod 202; a first adjusting bolt 205 is provided on the front side of the upper inner end of the grass chopping blade body 204, and a second adjusting bolt 206 is provided on the inner rear side of the first adjusting bolt 205, and the first adjusting bolt 205 passes through the grass chopping blade body 204 and the movable connecting rod 203 and the second adjusting bolt 206 in sequence, and are connected in a threaded manner; the left and right end surfaces of the grass chopping blade body 204 are both fitted with the brush head 208, and the brush head 208 is connected to the outer expansion frame 207 by bonding, and the longitudinal section of the grass chopping blade body 204 is a triangle.

[0039] Specifically, when the motor is turned on to rotate the adjustment rod 201, the first support rod 202 can be moved to the right end as a whole, so that the length of the straw can be adjusted according to the needs. At this time, the grass shredder body 204 is connected to the movable connecting rod 203, and the first adjustment bolt 205 is sequentially inserted into the grass shredder body 204 and the movable connecting rod 203 and the second adjustment bolt 206 are threadedly connected, so that the grass shredder body 204 can be stably installed at the lower end of the movable connecting rod 203, and the grass shredder body 204 can be stably installed at the lower end of the movable connecting rod 203. The protrusions arranged on the upper surfaces of the front and rear ends of 204 are engaged with the inner side of the lower end of the movable sleeve rod 310, and the left and right ends of the first support rod 202 are fixedly installed with an expansion frame 207, and the inner side of the lower end of the expansion frame 207 is provided with a brush head 208. When the grass chopping knife body 204 moves up and down, the brush head 208 can be used to clean dust and other impurities adhering to the outer surface of the grass chopping knife body 204, thereby avoiding the problem of rust and damage of the grass chopping knife body 204 due to long-term use, thereby improving the service life.

[0040] Embodiment 2

[0041] See also Figure 2 , Figure 3 , Figure 5 and Figure 6The present invention provides a technical solution: a rotation speed adjustment component 3; comprising a second support rod 301, a first adjustment disk 302 is arranged on the left side of the lower end of the second support rod 301, a second adjustment disk 303 is arranged on the right side of the first adjustment disk 302, a third adjustment disk 305 is arranged below the second adjustment disk 303, and a fourth adjustment disk 306 is connected to the left end of the third adjustment disk 305; a movable support rod 304 connected to the lawn mower housing 101 is arranged on the left side of the first adjustment disk 302 and the right side of the second adjustment disk 303, and the movable support rod 304 forms a snap-fit ​​sliding structure in the lawn mower housing 101; the second adjustment disk 303 and the third adjustment disk 305 are connected in a meshing manner, and when the first adjustment disk 302 is moved, it can be meshed and connected with the fourth adjustment disk 306; the third A first bevel gear disc 307 is fixedly installed on the right end of the adjusting disk 305, and a second bevel gear disc 308 is arranged on the inner side of the right end of the first bevel gear disc 307, and a fixed rocker 309 is arranged on the outer end of the second bevel gear disc 308; a movable sleeve rod 310 is arranged on the outer side of the fixed rocker arm 309, and a limiting groove body 311 connected to the fixed rocker arm 309 is opened on the inner side of the second support rod 301, and a limiting frame 312 connected to the grass cutter housing 101 is arranged on the outer side of the upper end of the movable sleeve rod 310; the first bevel gear disc 307 and the second bevel gear disc 308 are connected in a meshing manner, and the fixed rocker arm 309 fixedly connected to the rear end of the second bevel gear disc 308 forms a fitting sliding structure in the movable sleeve rod 310 through the limiting groove body 311, and the movable sleeve rod 310 forms a nested lifting structure in the limiting frame 312.

[0042] Specifically, when the motor is turned on to rotate the second adjustment disk 303, the meshing third adjustment disk 305 can be driven to move synchronously. At this time, the first bevel gear disk 307 fixedly connected to the right end of the third adjustment disk 305 drives the meshing second bevel gear disk 308 to move, so that the fixed rocker 309 provided at the inner end of the second bevel gear disk 308 slides in a fitting manner in the movable sleeve rod 310 through the limiting groove body 311, so that the movable sleeve rod 310 performs a nested lifting movement in the limiting frame 312, so that the grass cutting blade body 204 can cut straw, etc. During the grass chopping operation, when the adjusting rod 201 rotates and drives the second support rod 301 to move to the right as a whole, the second adjusting disk 303 can be disengaged from the meshing state with the third adjusting disk 305, so that the first adjusting disk 302 and the fourth adjusting disk 306 can be meshed and connected, thereby increasing the rotation rate and making the grass chopping knife body 204 chopping operation faster. The second adjusting disk 303 and the third adjusting disk 305 can be used in conjunction to reduce the rotation rate, and the first adjusting disk 302 and the fourth adjusting disk 306 can be used in conjunction to increase the rotation rate.

[0043] Embodiment 3

[0044] See also Figure 2 , Figure 3 ,and Figure 5 The present invention provides a technical solution: a control conveying component 1, a combined shredding component 2 is arranged on the upper side of the inner part of the control conveying component 1, and a rotation speed adjustment component 3 located on the inner side of the control conveying component 1 is arranged on the left side of the combined shredding component 2; the control conveying component 1; includes a grass chopper shell 101, a support frame 102 is installed at the lower part of the inner part of the grass chopper shell 101, a linkage shaft roller 103 is arranged on the inner side of the support frame 102, and a first conveyor belt 105 and a second conveyor belt 108 are respectively arranged on the outer side of the linkage shaft roller 103 from left to right; side baffles 104 are arranged at both the front and rear ends of the linkage shaft roller 103, and a receiving platform 106 connected to the grass chopper shell 101 is arranged on the inner side of the linkage shaft roller 103 and the second conveyor belt 108, and a groove 107 is opened on the inner side of the receiving platform 106.

[0045] Specifically, the first conveyor belt 105 and the second conveyor belt 108 are connected to the linkage roller 103 in a winding manner. When the motor is turned on to rotate the linkage roller 103, the first conveyor belt 105 and the second conveyor belt 108 can be driven to move synchronously, so that the straw and other grass materials placed on the upper surface can be stably transported. The speed can be adjusted according to actual needs to facilitate the length adjustment of the combined shredding component 2. The movement trajectory of the linkage roller 103 and the second conveyor belt 108 is from right to left. When the straw and other grass materials are input from the right, they move to the specified position, and the grass shredder body 204 moves to the right to shorten the shredding length. At this time, the rotation speed of the rotation speed adjustment component 3 is increased, otherwise the grass shredder body 204 moves to the left to increase the shredding length, and the rotation speed of the rotation speed adjustment component 3 is reduced (the rotation speed is adjusted faster for the wet straw state, and the rotation speed is adjusted slower for the dry straw state).

[0046] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A grass chopper for chopping grass, characterized in that: It comprises a control conveying assembly (1), a combined shredding assembly (2) is arranged on the upper inner side of the control conveying assembly (1), and a rotation rate adjustment assembly (3) located inside the control conveying assembly (1) is arranged on the left side of the combined shredding assembly (2); A control conveying assembly (1); comprising a grass shredder housing (101), a support frame (102) being installed at the lower part of the grass shredder housing (101), a linkage shaft roller (103) being arranged on the inner side of the support frame (102), and a first conveying belt (105) and a second conveying belt (108) being arranged on the outer side of the linkage shaft roller (103) from left to right; A combined shredder assembly (2); comprising an adjusting rod (201), a first support rod (202) being arranged on the outer side of the right end of the adjusting rod (201), a movable connecting rod (203) being arranged on the inner lower side of the first support rod (202), a grass shredder body (204) being arranged below the movable connecting rod (203), an external expansion frame (207) being arranged on both left and right ends of the first support rod (202), and a brush head (208) being arranged on the inner side of the lower end of the external expansion frame (207); A rotation rate adjustment component (3); comprising a second support rod (301), a first adjustment disk (302) being arranged on the left side of the lower end of the second support rod (301), a second adjustment disk (303) being arranged on the right side of the first adjustment disk (302), a third adjustment disk (305) being arranged below the second adjustment disk (303), and a fourth adjustment disk (306) being connected to the left end of the third adjustment disk (305).

2. A grass chopper for chopping grass according to claim 1, characterized in that: Side baffles (104) are provided at both the front and rear ends of the linkage roller (103), and a receiving platform (106) connected to the grass cutter housing (101) is provided on the inner side of the linkage roller (103) and the second conveyor belt (108), and a groove (107) is provided on the inner side of the receiving platform (106).

3. A grass chopper for chopping grass according to claim 1, characterized in that: The adjusting rod (201) and the first supporting rod (202) are connected in a threaded manner, and the movable connecting rod (203) forms a snap-fit ​​lifting structure on the inner side of the first supporting rod (202).

4. A grass chopper for chopping grass according to claim 1, characterized in that: A first adjusting bolt (205) is arranged on the front side of the upper end of the grass cutting blade body (204), and a second adjusting bolt (206) is arranged on the rear side of the first adjusting bolt (205). The first adjusting bolt (205) sequentially passes through the grass cutting blade body (204) and the movable connecting rod (203) and is connected to the second adjusting bolt (206) in a threaded manner.

5. A grass chopper for chopping grass according to claim 4, characterized in that: The left and right end surfaces of the grass-chopping blade body (204) are fitted with the brush head (208), and the brush head (208) and the expansion frame (207) are connected by bonding. The longitudinal section of the grass-chopping blade body (204) is a triangle.

6. A grass chopper for chopping grass according to claim 1, characterized in that: A movable support rod (304) connected to the lawn mower housing (101) is disposed on the left side of the first adjustment disk (302) and the right side of the second adjustment disk (303), and the movable support rod (304) forms a snap-fit ​​sliding structure in the lawn mower housing (101).

7. A grass chopper for chopping grass according to claim 6, characterized in that: The second adjustment disk (303) is connected to the third adjustment disk (305) in a meshing manner, and can be meshed with the fourth adjustment disk (306) when the first adjustment disk (302) is moved. The right end of the third adjustment disk (305) is fixedly mounted with a first bevel toothed disk (307), and the inner side of the right end of the first bevel toothed disk (307) is provided with a second bevel toothed disk (308), and the outer end of the second bevel toothed disk (308) is provided with a fixed rocker (309).

8. A grass chopper for chopping grass according to claim 7, characterized in that: A movable sleeve rod (310) is arranged on the outer side of the fixed rocker (309), a limiting groove (311) connected to the fixed rocker (309) is provided on the inner side of the second support rod (301), and a limiting frame (312) connected to the grass cutter housing (101) is arranged on the outer side of the upper end of the movable sleeve rod (310).

9. A grass chopper for chopping grass according to claim 7, characterized in that: The first bevel gear disc (307) and the second bevel gear disc (308) are connected in a meshing manner, and a fixed rocker (309) fixedly connected to the rear end of the second bevel gear disc (308) forms a fitting sliding structure in a movable sleeve rod (310) through a limiting groove body (311), and the movable sleeve rod (310) forms a nested lifting structure in a limiting frame (312).

10. A grass chopper for chopping grass, characterized in that: A reserved hole groove is provided on the inner side of the upper end of the grass-chopping blade body (204), and convex structures are provided on both the front and rear sides of the upper surface of the grass-chopping blade body (204).

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