A hay cutter with anti-blocking structure

Abstract

The utility model provides a hay cutter with prevent blocking structure relates to hay cutter field. This kind of hay cutter with prevent blocking structure includes hay cutter box and the feed conveyor belt of setting in the front side of hay cutter box, the front side and the bottom of hay cutter box are all provided with opening, the feed roller group is movably installed in the front of hay cutter box, the feed roller group includes upper feed roller and lower feed roller, the cutter holder is movably installed in the rear of hay cutter box, the cutter holder's outside fixed mounting has hay cutter, the feed assembly is located in the cutter holder below in hay cutter box, the left side of hay cutter box is provided with transmission assembly. This kind of hay cutter with prevent blocking structure realizes the transmission through the cooperation of synchronous pulley three, synchronous pulley four and synchronous belt two of cutter holder and rotating shaft, drives the rake material pole on the sleeve ring outside rotating shaft to rotate, and the blocked material that accumulates in hay cutter unloading position is raked down, to effectively avoid the blockage, ensure the stable operation of hay cutting operation.

Description

Technical Field

[0001] This utility model relates to a chaff cutter, specifically a chaff cutter with an anti-clogging structure, and belongs to the field of chaff cutter technology. Background Technology

[0002] A chaff cutter is an agricultural machine that uses corn stalks, wheat straw, rice straw, and other agricultural materials as feed. It pulverizes these materials through chopping and cutting to produce feed suitable for livestock such as cattle, sheep, horses, and deer.

[0003] The existing patent authorization announcement number CN221615631U discloses a silage chopper. The silage can be cut by rotating the chaff cutter connected to the support rod. The cut silage enters the guide box. The second drive component is activated, which causes the rotating rod fixedly connected to the output end of the second drive component to rotate. This causes the spiral blades fixedly connected to the rotating rod to rotate, thereby transporting the cut silage from the guide box to the discharge port. The stirring rod rotates with the rotating rod during the silage transport process.

[0004] When the above-mentioned patent is used, the silage after cutting falls from the chopping box into the guide box. The connection space is small, and when the feeding speed exceeds the motor load or the discharge port is not smooth, the silage will accumulate and block, making it inconvenient to clear and place quickly and effectively, and it is not convenient to use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a chaff cutter with an anti-clogging structure to solve the above-mentioned problems. In the prior art, the connection between the cut silage and the feed box is small, and when the feeding speed exceeds the motor load or the discharge port is not smooth, the silage will accumulate and block, making it inconvenient to quickly and effectively clear and place the silage, and making it not convenient to use.

[0007] (II) Technical Solution

[0008] This utility model is achieved through the following technical solution: a chaff cutter with an anti-clogging structure, comprising a chaff cutter box and a feeding conveyor belt disposed in front of the chaff cutter box. The chaff cutter box has openings on its front and bottom sides. A feeding roller assembly is movably installed at the front of the chaff cutter box, the feeding roller assembly including an upper feeding roller and a lower feeding roller. A cutter holder is movably installed at the rear of the chaff cutter box, and chaff cutters are fixedly installed on the outside of the cutter holder. A material feeding assembly is disposed inside the chaff cutter box below the cutter holder. A transmission assembly is disposed on the left side of the chaff cutter box, and a limit assembly is disposed on the top of the feeding conveyor belt. The material feeding assembly includes a rotating shaft rotatably installed inside the chaff cutter box. Multiple collars are movably installed on the outside of the rotating shaft along its length. Each collar is fixedly connected to a rake rod. The collars are threaded with fixing bolts that penetrate the collar and the rotating shaft. The cutter holder and the feed assembly are connected by a transmission assembly. The transmission assembly drives the rotating shaft in the feed assembly to rotate, which in turn causes the collars to rotate with the rake rods. During rotation, the rake rods can promptly rake away and transport the grass accumulated under the cutter holder, effectively preventing grass from clogging under the cutter holder and ensuring the normal operation of the chaff cutter. The collars are movably connected to the rotating shaft and fixed by fixing bolts, which allows for easy replacement of the rake rods when they are damaged.

[0009] Preferably, the transmission assembly includes a motor fixedly installed on the right side of the chaff cutter box and connected to the upper feed roller. The motor model can be Y2-132M-4. Meshing transmission gears are fixedly installed on the left ends of the upper and lower feed rollers, respectively. Synchronous pulley two and synchronous pulley one are fixedly installed on the left ends of the upper feed roller and the cutter holder, respectively. A synchronous belt one is movably installed on the outside of synchronous pulley two and synchronous pulley one. Synchronous pulley three and synchronous pulley four are fixedly installed on the left ends of the cutter holder and the rotating shaft, respectively. After the externally mounted synchronous belt motor starts, its power is transmitted to synchronous pulley two through the upper feed roller. Synchronous pulley two drives synchronous pulley one to rotate via synchronous belt one. Synchronous pulley one is installed at the left end of the cutter holder, which enables the cutter holder to start working. Synchronous pulley three at the left end of the cutter holder drives synchronous pulley four to rotate via synchronous belt two. Since synchronous pulley four is installed at the left end of the shaft, it drives the shaft to rotate, causing the collar to rotate with the rake rod, so that the grass is raked during cutting, preventing the grass from clogging under the cutter holder and ensuring the stable operation of the grass cutter.

[0010] Preferably, the rear side of the chaff cutter box is provided with a straight groove corresponding to the rake rod. The straight groove allows the rake rod to extend smoothly outside the chaff cutter box during rotation, ensuring the rake rod's rake range while avoiding obstruction, thus enabling better rake operation of the forage. The dimensions of the straight groove are precisely designed to ensure the free rotation of the rake rod while preventing excessive leakage of forage from the straight groove, ensuring a clean working environment for the chaff cutter.

[0011] Preferably, the first and third synchronous pulleys are located at the left end of the tool holder in a staggered manner. This staggered arrangement can make full use of the space at the left end of the tool holder, making the overall structure more compact and reasonable, avoiding mutual interference between components, and ensuring the stability and smoothness of the first and third synchronous pulleys when driving other components to rotate.

[0012] Preferably, the size of the second synchronous pulley is larger than that of the first synchronous pulley, and the size of the third synchronous pulley is larger than that of the fourth synchronous pulley, so as to achieve different transmission ratios, thereby better controlling the rotation speed of the shaft to adapt to different needs of forage cutting and raking, ensuring that the forage can be processed efficiently and stably in the chaff cutter. The relatively large size of the second and third synchronous pulleys allows them to provide stronger torque when transmitting power, which helps to drive the connected components to operate stably, reducing possible jamming or malfunctions due to insufficient power, and further improving the overall reliability and working efficiency of the chaff cutter.

[0013] Preferably, the guillotine cutters are arranged in a ring at equal intervals outside the cutter holder, which allows the guillotine cutters to cut materials evenly during operation, ensuring the uniformity and consistency of the cutting effect. The ring at equal intervals also facilitates the installation, adjustment and maintenance of the guillotine cutters. When a guillotine cutter is damaged or needs adjustment, it can be easily and quickly disassembled and reassembled without significantly affecting the normal operation of other guillotine cutters.

[0014] Preferably, the limiting component includes a stand fixedly installed on the top of the feeding conveyor belt and located in front of the chaff cutter box. Slide grooves are provided on both the left and right sides of the stand. A slider is slidably installed inside the slide groove, and a limiting rod is movably installed between the sliders. The side of the stand is provided with markings corresponding to the slide grooves. These markings accurately display the position of the slider within the slide groove, thereby accurately obtaining the height of the material lifting the limiting rod. This helps determine the height of the material entering the chaff cutter box, preventing excessive chaff from causing blockage and ensuring that a suitable amount of chaff continuously enters the chaff cutter box for cutting.

[0015] Preferably, the limiting rod is made of hollow plastic, which reduces the overall weight of the limiting rod, making the slider slide more smoothly in the groove and easier to be lifted. The plastic material also has good corrosion resistance, which can resist the erosion of moisture and chemicals that may be contained in the hay, thereby extending the service life of the limiting rod and reducing the replacement frequency and maintenance costs.

[0016] This utility model provides a chaff cutter with an anti-clogging structure, which has the following beneficial effects:

[0017] 1. This chaff cutter with an anti-clogging structure achieves transmission between the upper feed roller and the cutter holder through the cooperation of synchronous pulley one, synchronous pulley two, and synchronous belt one, driving the cutter holder to rotate. The cutter holder and the rotating shaft achieve transmission through the cooperation of synchronous pulley three, synchronous pulley four, and synchronous belt two, driving the rake rod on the outer collar of the rotating shaft to rotate, rakeing the clogging material accumulated at the discharge position of the chaff box downwards, thereby effectively avoiding clogging and ensuring the stable operation of the chaff cutting operation.

[0018] 2. This type of chaff cutter with an anti-clogging structure transports material onto the feeding conveyor belt into the chaff box. The material pushes against the limit rod, causing the slider to slide up the chaff groove. By observing the height position of the slider on the marked scale, the thickness of the material can be judged, which facilitates the matching and adjustment of the conveying speed and cutting speed, ensuring stable chaff cutting and effectively avoiding blockage caused by excessive feeding. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the chaff cutter box of this utility model;

[0021] Figure 3 This is a schematic diagram of the material feeding assembly of this utility model;

[0022] Figure 4 This is an exploded view of the transmission component of this utility model;

[0023] Figure 5 This is a schematic diagram of the limiting component of this utility model.

[0024] [Explanation of Key Component Symbols]

[0025] 1. Chopping box; 2. Feed conveyor belt; 3. Feed roller assembly; 31. Upper feed roller; 32. Lower feed roller; 4. Cutter holder; 5. Chopper; 6. Feeding assembly; 61. Rotating shaft; 62. Collar; 63. Rake rod; 64. Fixing bolt; 7. Transmission assembly; 71. Motor; 72. Transmission gear; 73. Synchronous pulley one; 74. Synchronous pulley two; 75. Synchronous belt one; 76. Synchronous pulley three; 77. Synchronous pulley four; 78. Synchronous belt two; 8. Limiting assembly; 81. Frame; 82. Slide groove; 83. Sliding block; 84. Limiting rod; 85. Marking scale. Detailed Implementation

[0026] This utility model embodiment provides a chaff cutter with an anti-clogging structure.

[0027] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes a chaff cutter box 1 and a feeding conveyor belt 2 located at the front of the chaff cutter box 1. The chaff cutter box 1 has openings at both the front and bottom. A feeding roller assembly 3 is movably installed at the front of the chaff cutter box 1. The feeding roller assembly 3 includes an upper feeding roller 31 and a lower feeding roller 32. A cutter holder 4 is movably installed at the rear of the chaff cutter box 1. A chaff cutter 5 is fixedly installed on the outside of the cutter holder 4. A feed conveyor assembly 6 is located below the cutter holder 4 inside the chaff cutter box 1. A transmission assembly is located on the left side of the chaff cutter box 1. Component 7, the top of the feeding conveyor belt 2 is provided with a limit component 8; the feeding assembly 6 includes a rotating shaft 61 rotatably installed inside the chaff box 1, and multiple collars 62 are movably installed on the outside of the rotating shaft 61 along the length direction of the rotating shaft 61. The outside of each collar 62 is fixedly connected with a rake rod 63. The outside of the collar 62 is threaded with a fixing bolt 64 that penetrates the collar 62 and the rotating shaft 61. The cutter holder 4 and the feeding assembly 6 are connected by transmission component 7.

[0028] The transmission assembly 7 includes a motor 71 fixedly installed on the right side of the chaff box 1 and connected to the upper feed roller 31. The left ends of the upper feed roller 31 and the lower feed roller 32 are respectively fixedly installed with meshing transmission gears 72. The left ends of the upper feed roller 31 and the cutter holder 4 are respectively fixedly installed with synchronous pulley 2 74 and synchronous pulley 1 73. Synchronous belt 1 75 is movably installed on the outside of synchronous pulley 2 74 and synchronous pulley 1 73. The left ends of the cutter holder 4 and the rotating shaft 61 are respectively fixedly installed with synchronous pulley 3 76 and synchronous pulley 4 77. Synchronous belt 2 78 is movably installed on the outside of synchronous pulley 3 76 and synchronous pulley 4 77.

[0029] The rear side of the chaff cutter box 1 has a straight groove corresponding to the rake rod 63.

[0030] Synchronous pulley 1 73 and synchronous pulley 3 76 are located at the left end of the tool holder 4 and are staggered.

[0031] The size of synchronous pulley 2 (74) is larger than that of synchronous pulley 1 (73), and the size of synchronous pulley 3 (76) is larger than that of synchronous pulley 4 (77).

[0032] The guillotine 5 is located outside the tool holder 4 and is arranged in a ring at equal intervals.

[0033] In use, this invention works as follows: The motor 71 drives the connected upper feed roller 31 to rotate. When the upper feed roller 31 rotates, it achieves transmission through the cooperation of synchronous pulley 73, synchronous pulley 74, and synchronous belt 75 at the end of the cutter holder 4, thereby driving the cutter holder 4 to rotate. The rotation of the cutter holder 4 drives the external chaff cutter 5 to rotate rapidly, cutting the material entering the chaff box 1. The cut material slides down the inner wall of the chaff box 1 and is discharged. The cutter holder 4 is connected to the synchronous pulleys 76 and 77 at the end of the rotating shaft 61 through synchronous belt 78, thereby driving the outer collar 62 of the rotating shaft 61 to rotate. When the collar 62 rotates, it drives the rake rod 63 to rotate, rakeing downwards the clogging material accumulated at the discharge position of the chaff box 1, effectively preventing blockage and ensuring stable operation of the chaff cutting operation.

[0034] Example 2, please refer to again Figure 1 , Figure 2 and Figure 5 The limiting component 8 includes a stand 81 fixedly installed on the top of the feeding conveyor belt 2 and located in front of the chaff box 1. The stand 81 has grooves 82 on both the left and right sides. A slider 83 is slidably installed inside the groove 82. A limiting rod 84 is movably installed between the sliders 83. The side of the stand 81 is provided with marking scales 85 corresponding to the grooves 82.

[0035] The limit rod 84 is made of hollow plastic.

[0036] In use, the material is conveyed into the chaff box 1 on the feeding conveyor belt 2. The material is pushed against the limiting rod 84 at the rear, which drives the sliders 83 at both ends to slide upward along the slide groove 82. By observing the height position of the slider 83 on the marked scale 85, the thickness of the material can be judged, which facilitates the matching and adjustment of the conveying speed and the cutting speed, ensuring the stable chaff cutting and effectively avoiding the problem of blockage caused by excessive feeding.

[0037] Working principle: When in use, the material is placed on the feeding conveyor belt 2 and conveyed into the chaff box 1 by the feeding conveyor belt 2. The rear of the material abuts against the limit rod 84, which drives the sliders 83 at both ends to slide upward along the slide groove 82. By observing the height position of the slider 83 on the marked scale 85, the thickness of the material can be judged, which makes it convenient to match and adjust the conveying speed and cutting speed to ensure stable chaff cutting and effectively avoid blockage caused by excessive feeding.

[0038] The upper feed roller 31, connected to the motor 71, rotates synchronously with the lower feed roller 32 via a transmission gear 72 meshing at their ends, pushing the material into the chaff cutter box 1. As the upper feed roller 31 rotates, it is driven by a synchronous belt 75 through synchronous pulleys 74 and 73 at the end of the cutter holder 4, which in turn drives the cutter holder 4 to rotate. The rotation of the cutter holder 4 causes the external chaff cutter 5 to rotate rapidly, cutting the material entering the chaff cutter box 1. The material slides down into the chaff box 1 and is discharged. A conveyor belt at the bottom of the chaff box 1 carries the material. During the rotation of the cutter holder 4, the cutter holder 4 and the synchronous pulleys 76 and 77 at the end of the rotating shaft 61 work together with the synchronous belt 78 to achieve transmission, which in turn drives the collar 62 outside the rotating shaft 61 to rotate. When the collar 62 rotates, it drives the rake rod 63 to rotate, rakeing the material that is piled up and blocked at the discharge position inside the chaff box 1 downwards, thus effectively avoiding blockage and ensuring the stable operation of chaff cutting.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A chaff cutter with an anti-clogging structure, comprising a chaff cutter box (1) and a feeding conveyor belt (2) disposed in front of the chaff cutter box (1), characterized in that: The front and bottom of the chaff cutter box (1) are provided with openings. A feeding roller group (3) is movably installed in the front of the chaff cutter box (1). The feeding roller group (3) includes an upper feeding roller (31) and a lower feeding roller (32). A cutter holder (4) is movably installed in the rear of the chaff cutter box (1). A chaff cutter (5) is fixedly installed on the outside of the cutter holder (4). A material feeding assembly (6) is provided in the chaff cutter box (1) below the cutter holder (4). A transmission assembly (7) is provided on the left side of the chaff cutter box (1). A limit assembly (8) is provided on the top of the feeding conveyor belt (2). The feed feeding assembly (6) includes a rotating shaft (61) rotatably installed inside the chaff box (1). Multiple collars (62) are movably installed on the outside of the rotating shaft (61) along the length direction of the rotating shaft (61). A rake rod (63) is fixedly connected to the outside of each collar (62). A fixing bolt (64) penetrating the collar (62) and the rotating shaft (61) is installed on the external thread of the collar (62). The cutter holder (4) and the feed feeding assembly (6) are connected by a transmission assembly (7).

2. A chaff cutter with an anti-clogging structure according to claim 1, characterized in that: The transmission assembly (7) includes a motor (71) fixedly installed on the right side of the chaff box (1) and connected to the upper feed roller (31). The left ends of the upper feed roller (31) and the lower feed roller (32) are respectively fixedly installed with meshing transmission gears (72). The left ends of the upper feed roller (31) and the cutter holder (4) are respectively fixedly installed with synchronous pulley two (74) and synchronous pulley one (73). Synchronous belt one (75) is movably installed on the outside of synchronous pulley two (74) and synchronous pulley one (73). The left ends of the cutter holder (4) and the rotating shaft (61) are respectively fixedly installed with synchronous pulley three (76) and synchronous pulley four (77). Synchronous belt two (78) is movably installed on the outside of synchronous pulley three (76) and synchronous pulley four (77).

3. A chaff cutter with an anti-clogging structure according to claim 1, characterized in that: The rear side of the chaff cutter box (1) has a straight slot corresponding to the rake rod (63).

4. A chaff cutter with an anti-clogging structure according to claim 2, characterized in that: The first synchronous pulley (73) and the third synchronous pulley (76) are located at the left end of the tool holder (4) and are staggered.

5. A chaff cutter with an anti-clogging structure according to claim 2, characterized in that: The size of the second synchronous pulley (74) is larger than that of the first synchronous pulley (73), and the size of the third synchronous pulley (76) is larger than that of the fourth synchronous pulley (77).

6. A chaff cutter with an anti-clogging structure according to claim 1, characterized in that: The guillotine (5) is located outside the tool holder (4) and is arranged in a ring at equal intervals.

7. A chaff cutter with an anti-clogging structure according to claim 1, characterized in that: The limiting component (8) includes a stand (81) fixedly installed on the top of the feeding conveyor belt (2) and located in front of the chaff box (1). The stand (81) has grooves (82) on both the left and right sides. A slider (83) is slidably installed inside the groove (82). A limiting rod (84) is movably installed between the sliders (83). The side of the stand (81) is provided with marking scales (85) corresponding to the grooves (82).

8. A chaff cutter with an anti-clogging structure according to claim 7, characterized in that: The limiting rod (84) is made of hollow plastic.

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