Double-roller grass chopping knife of grass chopper for herdsmen
By designing a sliding connection structure and a pushing mechanism for the double-roller grass shredder, the problems of existing grass shredders being unable to adjust length and prone to clogging were solved, thereby improving grass shredding efficiency and preventing clogging.
Patent Information
- Application Number
- CN202423061366.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing hay shredders cannot adjust the length of hay shreds as needed, resulting in poor shredding effect and easy clogging.
Design a double-roller grass shredder for herders, with first and second drive rollers each equipped with a slidably connected grass shredder blade. The grass shredding diameter can be changed by adjusting the gap between the two rollers, and a pushing mechanism is provided to prevent clogging.
It achieves the ability to adjust the crushing effect according to the length of the forage, improving crushing efficiency and effectively avoiding clogging.
Smart Images

Figure CN223758802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of forage shredding technology, specifically to a double-roller forage shredder for herders. Background Technology
[0002] Hay shredders, as agricultural machinery, are widely used in animal husbandry and horticulture. With the development of agricultural mechanization, hay shredders have evolved from simple manual operation to mechanized and automated production. The working principle of a hay shredder is typically to cut and pulverize hay using high-speed rotating blades or rollers. After the hay is fed into the shredder's inlet, it is struck and cut by the blades or rollers, thus breaking it into smaller particles or segments. This pulverized hay can be used for various purposes such as feed processing and composting.
[0003] For example, Chinese Patent Publication No. CN221228289U discloses a hay shredder, including: a shredding shell, both ends of which have through guide holes; it relies on the sliding of a sliding tray to slide the hay falling on it, so that the hay falls quickly when the sliding tray shakes, reducing the accumulation of hay. At the same time, the arc of the sliding tray is concentrically set with the crushing component and in contact with it. When the crushing component rotates, it can hook up the longer hay, so that the longer hay is crushed again and the longer hay will not clog the sliding tray. However, the hay shredder cannot be adjusted according to the required length of hay to be shredded, so that the hay shredding effect is poor, and some small particles will still fall into the tray and cause blockage when the hay is shredded. Utility Model Content
[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a double-roller grass shredder for herders.
[0005] The purpose of this utility model can be achieved through the following technical solution: a double-roller grass shredder for herdsmen, comprising a double-roller grass shredder body, wherein the double-roller grass shredder body includes a drive motor, and the drive motor is fixed to one side outside the upper housing, and the drive motor is used to drive the first transmission roller for transmission.
[0006] The first transmission roller has one end fixed to the output end of the drive motor, and the first grass shredder is slidably connected to the first grass shredder, which is used to shred the grass in a forward direction.
[0007] The second drive roller has a second grass-chopping blade slidably connected to it, and the second grass-chopping blade is used to chop the forage in the reverse direction.
[0008] As a further embodiment of this utility model: three sets of first slide rails are fixedly installed on the outer surface of the first transmission roller, and the first grass shredder slides on the first transmission roller through the first slide rails; three sets of second slide rails are fixedly installed on the outer surface of the second transmission roller, and the second grass shredder slides on the second transmission roller through the second slide rails.
[0009] As a further embodiment of this utility model: the double-roller grass shredder body also includes a second gear and a first gear. The first gear is fixed on the end of the first transmission roller away from the drive motor, and the second gear is fixed on the second transmission roller. The second gear and the first gear are meshed together, and the first gear and the second gear are on the same horizontal plane outside the upper housing.
[0010] As a further embodiment of this utility model: the first transmission roller and the second transmission roller are both connected through and rotatably to the two sides of the middle part of the upper box, and the second transmission roller is arranged in parallel with the first transmission roller.
[0011] As a further embodiment of this utility model, it also includes an upper box body, inside which a double-roller grass shredder body is provided. The upper box body is connected to a lower box body, and a pushing mechanism is provided in the lower box body. The pushing mechanism includes a push plate, which is disposed in the lower box body and fits against the lower surface of the lower box body. The push plate is used to push the material in the lower box body. Sliding blocks are fixedly connected to both sides of the push plate. The push plate slides on the guide column through the sliding blocks to achieve the pushing of material.
[0012] As a further embodiment of this utility model: the pushing mechanism also includes a handle, the handle is located outside the lower box, a connecting plate is fixedly connected to one side of the handle, and a pull rod is fixedly connected to both ends of the connecting plate away from the handle. The pull rod passes through and slides on one side of the lower box, the pull rod is moved by an auxiliary push plate, and the end of the pull rod away from the connecting plate is fixedly connected to the push plate.
[0013] As a further embodiment of this utility model: auxiliary sliding grooves are provided on both sides of the lower housing, the sliding block slides in the lower housing through the auxiliary sliding grooves, and the guide post is fixedly installed in the auxiliary sliding groove.
[0014] As a further embodiment of this utility model: support legs are fixedly connected to the lower outer surface of the lower box body, and four sets of support legs are provided. The support legs are used to support the lower box body. Protective baffles are provided on both sides of the lower box body. The protective baffles can effectively prevent grass fragments from entering the auxiliary chute.
[0015] The beneficial effects of this utility model are:
[0016] (1) This utility model allows the gap between the two grass-crushing blades to be adjusted according to the length of the grass being crushed, thereby changing the diameter of the grass being crushed and improving the effect of grass crushing.
[0017] (2) By pushing the handle, the handle extends forward with the connecting plate. The connecting plate moves along one side of the lower box with the pull rod. The pull rod pushes the push plate to push the crushed hay at the bottom of the lower box. The push plate moves along the guide column and the auxiliary slide along the guide column and the auxiliary slide, so that the pushing mechanism can push the crushed hay in the lower box out of the outlet, which can effectively avoid blockage. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] Figure 1 This is a three-dimensional structural diagram of the double-roller blades of a hay shredder for herders, according to this utility model. Figure 1 ;
[0020] Figure 2 This is a three-dimensional structural diagram of the double-roller blades of a hay shredder for herders, according to this utility model. Figure 2 ;
[0021] Figure 3 This is a cross-sectional structural diagram of the double-roller grass shredder of a grass shredder for herdsmen according to this utility model;
[0022] Figure 4 This is a three-dimensional structural diagram of the double-roller grass shredder body of this utility model;
[0023] Figure 5 This is a schematic diagram showing the disassembled structure of the components of the double-roller grass shredder body of this utility model;
[0024] Figure 6 This is a three-dimensional structural diagram of the material pushing mechanism of this utility model.
[0025] In the diagram: 1. Upper housing; 2. Lower housing; 3. Double roller grass shredder body; 4. Pushing mechanism; 5. Auxiliary chute; 6. Support leg; 7. Protective baffle; 301. Drive motor; 302. First transmission roller; 3021. First slide rail; 303. First grass shredder; 304. Second grass shredder; 306. First gear; 307. Second gear; 308. Second transmission roller; 3081. Second slide rail; 41. Connecting plate; 42. Pull rod; 43. Push plate; 44. Sliding block; 45. Guide column; 46. Handle. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1:
[0028] Please see Figures 1-6 As shown, this utility model is a double-roller grass shredder for herdsmen, characterized in that it includes a double-roller grass shredder body 3, the double-roller grass shredder body 3 includes a drive motor 301, and the drive motor 301 is fixed to one side of the outside of the upper housing 1. The drive motor 301 is used to drive the first transmission roller 302 for transmission.
[0029] The first transmission roller 302 has one end fixed to the output end of the drive motor 301. The first transmission roller 302 is slidably connected to the first grass shredder 303, and the first grass shredder 303 is used to shred the forage in a forward direction.
[0030] The second drive roller 308 is slidably connected to the second drive roller 308, and the second grass shredder 304 is used to shred the forage in the reverse direction.
[0031] In a preferred embodiment, three sets of first slide rails 3021 are fixedly installed on the outer surface of the first drive roller 302, and the first grass shredder 303 slides on the first drive roller 302 via the first slide rails 3021. Three sets of second slide rails 3081 are fixedly installed on the outer surface of the second drive roller 308, and the second grass shredder 304 slides on the second drive roller 308 via the second slide rails 3081.
[0032] In a preferred embodiment, the double-roller grass shredder body 3 also includes a second gear 307 and a first gear 306. The first gear 306 is fixed on the first transmission roller 302 at the end away from the drive motor 301, and the second gear 307 is fixed on the second transmission roller 308. The second gear 307 and the first gear 306 are meshed together, and the first gear 306 and the second gear 307 are on the same horizontal plane outside the upper housing 1.
[0033] In a preferred embodiment, the first drive roller 302 and the second drive roller 308 are both connected through and rotatably to the two sides of the middle part of the upper housing 1, and the second drive roller 308 and the first drive roller 302 are arranged in parallel.
[0034] It should be noted that the upper box 1 is equipped with a feed inlet to facilitate the input of hay. The first hay chopper 303 and the second hay chopper 304 rotate in opposite directions, which makes it easier to chop the hay. Both the first hay chopper 303 and the second hay chopper 304 are provided with multiple sets, which can be increased or decreased as needed. However, multiple sets are shown in the text.
[0035] In practical use, the operator moves the first shredder 303 and the second shredder 304 along the first slide rail 3021 and the second slide rail 3081 respectively, thereby adjusting the gap between the two shredders 303 and 304 according to the length of the shredded hay, thus changing the diameter of the shredded hay. A drive motor 301 is provided, and the output end of the drive motor 301 drives the first transmission roller 302 and the first slide rail 3021 to rotate. The first slide rail 3021 carries... The first grass shredder 303 rotates in the forward direction, and one side of the first drive roller 302 drives the first gear 306 to rotate in the forward direction. The first gear 306 drives the second gear 307 to rotate in the reverse direction. The second gear 307 drives the second drive roller 308 to rotate in the reverse direction along the upper housing 1. The second drive roller 308 drives the second slide rail 3081 to rotate. The second slide rail 3081 drives the second grass shredder 304 to rotate in the reverse direction. The speed and effect of grass shredding are increased by the opposite rotation of the first grass shredder 303 and the second grass shredder 304.
[0036] Example 2
[0037] As a preferred embodiment, it also includes an upper box 1, inside which a double-roller grass shredder body 3 is provided. The upper box 1 is connected to the lower box 2. The lower box 2 is provided with a pushing mechanism 4. The pushing mechanism 4 includes a push plate 43. The push plate 43 is disposed in the lower box 2 and is in contact with the lower surface of the lower box 2. The push plate 43 is used to push the material in the lower box 2. Sliding blocks 44 are fixedly connected to both sides of the push plate 43. The push plate 43 slides on the guide post 45 through the sliding blocks 44 to realize the pushing of material.
[0038] In a preferred embodiment, the pushing mechanism 4 also includes a handle 46, which is located outside the lower housing 2. A connecting plate 41 is fixedly connected to one side of the handle 46, and a pull rod 42 is fixedly connected to both ends of the connecting plate 41 away from the handle 46. The pull rod 42 passes through and slides on one side of the lower housing 2. The pull rod 42 is moved by an auxiliary push plate 43, and the end of the pull rod 42 away from the connecting plate 41 is fixedly connected to the push plate 43.
[0039] As a preferred embodiment, auxiliary sliding grooves 5 are provided on both sides of the lower housing 2, and the sliding block 44 slides in the lower housing 2 through the auxiliary sliding grooves 5. The guide post 45 is fixedly installed in the auxiliary sliding grooves 5.
[0040] As a preferred embodiment, support legs 6 are fixedly connected around the lower outer surface of the lower box 2, and four sets of support legs 6 are provided. The support legs 6 are used to support the lower box 2. Protective baffles 7 are provided on both sides inside the lower box 2. The protective baffles 7 can effectively prevent grass fragments from entering the auxiliary chute 5.
[0041] It should be noted that the push plate 43 is square and moves perpendicular to the lower box 2 when pushed. The protective baffle 7 is V-shaped and can guide the crushed hay, so that the hay falls along the center of the lower box 2. It can effectively protect the auxiliary slides 5 on both sides of the lower box 2.
[0042] In practical use, when the hay in the upper box 1 is crushed by the first hay shredder 303 and the second hay shredder 304 and falls into the lower box 2, push the handle 46. The handle 46 extends forward with the connecting plate 41. The connecting plate 41 moves along one side of the lower box 2 with the pull rod 42. The pull rod 42 pushes the crushed hay at the bottom of the lower box 2 with the push plate 43. The push plate 43 moves along the guide post 45 and the auxiliary slide 5 with the sliding block 44, so that the pushing mechanism 4 can push the crushed hay in the lower box 2 out of the outlet, which can effectively avoid blockage.
[0043] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A double roller grass cutting knife for a herder's grass chopper, characterized by comprising: Comprise; Double roller grass cutter body (3), the double roller grass cutter body (3) includes drive motor (301), and drive motor (301) is fixed to the side outside upper box (1), drive motor (301) is used to drive first transmission roller (302) transmission; First transmission roller (302), one end of first transmission roller (302) is fixedly connected to the output end of drive motor (301), first transmission roller (302) is slidably connected to first grass cutter (303), and first grass cutter (303) is used to forward twisting of pasture; Second transmission roller (308), the second transmission roller (308) is slidably connected with second grass cutter (304), and the second grass cutter (304) is used for reverse twisting of pasture; The outer surface of the first transmission roller (302) is fixedly installed with three groups of first sliding rails (3021), the first grass cutter (303) is slid on the first transmission roller (302) through the first sliding rail (3021), the outer surface of the second transmission roller (308) is fixedly installed with three groups of second sliding rails (3081), and the second grass cutter (304) is slid on the second transmission roller (308) through the second sliding rail (3081).
2. The double roller grass cutting knife of the herdsman's grass cutter according to claim 1, characterized in that, The double roller grass cutter body (3) further comprises a second gear (307) and a first gear (306), the first gear (306) is fixed to one end of the first transmission roller (302) away from the drive motor (301), the second gear (307) is fixed to the second transmission roller (308), and the second gear (307) is in meshing connection with the first gear (306), and the first gear (306) and the second gear (307) are in the same horizontal plane outside the upper box (1).
3. The double roller grass cutting knife of the herdsman's grass cutter according to claim 2, characterized in that, The first transmission roller (302) and the second transmission roller (308) are both rotatably connected to the two sides of the middle part of the upper box (1), and the second transmission roller (308) is parallel to the first transmission roller (302).
4. The double roller grass cutting knife of the herdsman's grass chopper according to claim 3, characterized in that, Further comprising an upper box (1), the upper box (1) is provided with a double roller grass cutter body (3) inside, the upper box (1) is connected with the lower box (2), the lower box (2) is provided with a pushing mechanism (4), the pushing mechanism (4) comprises a push plate (43), the push plate (43) is arranged in the lower box (2) and is attached to the lower surface in the lower box (2), the push plate (43) is used for pushing the material in the lower box (2), and the two sides of the push plate (43) are fixedly connected with sliding blocks (44), the push plate (43) is slid on the guide column (45) through the sliding block (44) to realize pushing.
5. The double roller grass cutting knife of the herdsman's grass chopper according to claim 4, characterized in that, The pushing mechanism (4) further comprises a handle (46) located outside the lower box body (2), one side of the handle (46) is fixedly connected with a connecting plate (41), both ends of the connecting plate (41) away from the handle (46) are fixedly connected with pull rods (42), the pull rods (42) penetrate and slide on one side of the lower box body (2), the pull rods (42) are moved by auxiliary push plates (43), and one end of the pull rods (42) away from the connecting plate (41) is fixedly connected with the push plates (43).
6. The double roller grass cutting knife of the herdsman's grass chopper according to claim 5, characterized in that, Both sides in the lower box body (2) are provided with auxiliary sliding grooves (5), the sliding blocks (44) slide in the lower box body (2) through the auxiliary sliding grooves (5), and the guide columns (45) are fixedly installed in the auxiliary sliding grooves (5).
7. The double roller grass cutting knife of the herdsman's grass chopper according to claim 6, characterized in that, The lower surface of the outer side of the lower box body (2) is fixedly connected with support legs (6), four groups of the support legs (6) are arranged, the support legs (6) are used for supporting the lower box body (2), both sides in the lower box body (2) are provided with protective baffles (7), and the protective baffles (7) can effectively prevent the chopped grass from entering the auxiliary sliding grooves (5).
Citation Information
Patent Citations
Forage grass smashing machine
CN221228289U