Agricultural straw crushing device

Abstract

The present invention relates to the technical field of crushing devices, and discloses an agricultural straw crushing device, including a frame, on which a debris removal and cleaning mechanism is arranged, and the debris removal and cleaning mechanism includes a guide rail, a linear motor, a telescopic rod, a connecting block, a track groove, a grab assembly, a first spring, a movable frame, a first rotating rod, a stirring rod, and a pressure rod; the guide rail is fixedly mounted on the inner wall of the frame, the linear motor is arranged on the guide rail, and the telescopic rod is fixedly connected to the bottom of the linear motor. The present invention can drive the straw to move along the track groove into the water by arranging the guide rail, the linear motor, the telescopic rod, the connecting block and the grab assembly to clean the straw, and at the same time, the wave section of the track groove can make the straw shake up and down when cleaning in the water, so as to shake off impurities such as soil and stones attached to the straw, and avoid the impurities such as soil and stones from causing subsequent crushing rollers to be blocked, thereby improving the stability of straw crushing.

Description

Technical Field

[0001] The invention relates to the technical field of crushing devices, in particular to an agricultural straw crushing device. Background Art

[0002] Straw is the remaining stem and leaf part of crops after they are mature and threshed. It can be used to feed livestock, make fertilizer, and be woven into some daily use tools. The most widely used of them is feeding livestock. When feeding livestock with straw, in order to make full use of it, the straw needs to be crushed.

[0003] According to a Chinese patent with the announcement number "CN213880985U", a straw crushing device for agricultural production is disclosed, including a crushing box, a feed pipe is fixed near the top of a section of the outer wall of the crushing box, and the feed pipe is inclined, connecting rods are fixed to the inner walls on both sides of the crushing box, and a bidirectional motor is fixed between the connecting rods, the top outer wall of the bidirectional motor is rotatably connected to a first rotating rod, and the outer wall of the first rotating rod is fixed with three cutting blades, the bottom outer wall of the bidirectional motor is rotatably connected to a second rotating rod, and the outer wall of the second rotating rod is fixed with multiple fixed rods, and one end of the bottom outer wall of the multiple fixed rods is rotatably connected to a rotating rod, and the outer wall of the rotating rod is fixed with multiple crushing blades. The rotating drum provided in the utility model can crush the straw entering the device into a flat state for subsequent cutting and crushing, and the grab bar on the rotating drum can assist in feeding, and at the same time, the straw is ensured to be completely crushed through the dual measures of cutting first and then crushing.

[0004] When the above patent is in use, since impurities such as soil and stones are often present in the straw, it is easy to cause the crusher to be blocked, thereby affecting the crushing effect. Therefore, an agricultural straw crushing device is proposed to solve the above problem. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an agricultural straw crushing device in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an agricultural straw crushing device, comprising a frame, the frame is provided with a debris removal and cleaning mechanism, the debris removal and cleaning mechanism comprises a guide rail, a linear motor, a telescopic rod, a connecting block, a track groove, a grabbing assembly, a first spring, a movable frame, a first rotating rod, a stirring rod, and a pressure rod;

[0007] The guide rail is installed on the inner wall of the frame, the linear motor is arranged on the guide rail, the telescopic rod is arranged below the linear motor, the connecting block is connected to the bottom of the movable end of the telescopic rod, the track groove is opened on the inner wall of the frame, and one end of the connecting block is slidably connected to the inner wall of the track groove through a slider, the track groove has a wavy section, and the grabbing assembly is arranged on the connecting block;

[0008] The first spring is fixedly connected to the bottom of the inner wall of the frame, the movable frame is connected to the top of the first spring, the first rotating rod is rotatably connected to the inner wall of the frame through a bearing, the stirring rod is arranged on the outer wall of the first rotating rod, the pressing rod is arranged at the bottom of the connecting block, and the pressing rod presses the bottom of the inner wall of the movable frame;

[0009] The grab assembly includes a fixed frame, an electric push rod, and a clamping plate. The fixed frame is fixedly connected to the connecting block. The electric push rod is fixedly installed on the top of the fixed frame, and the movable end of the electric push rod passes through the top of the fixed frame. The clamping plate is fixedly connected to the bottom of the movable end of the electric push rod.

[0010] The outer wall fixed sleeve of the first rotating rod is provided with a gear, the side of the movable frame is provided with a rack, and the gear is meshingly connected with the rack, the inner wall of the frame is fixedly connected with a filter plate, the inner wall of the frame is fixedly connected with a fixed plate, a knocking rod is provided on the fixed plate, and the knocking rod movably passes through the bottom of the fixed plate, the bottom of the knocking rod is fixedly connected with a bottom plate, the top of the knocking rod is provided with an elastic block, and the elastic block contacts the bottom of the filter plate, the knocking rod is sleeved with a second spring, the two ends of the second spring are respectively fixedly connected to the fixed plate and the knocking rod, and the stirring rod drives the knocking rod to knock on the bottom of the filter plate.

[0011] Preferably, the impurity removal and cleaning mechanism also includes a driving motor, a second rotating rod, and a rolling roller. The driving motor is fixedly mounted on the back of the frame through a mounting plate, one end of the second rotating rod is fixedly connected to the output end of the driving motor, and the other end of the second rotating rod passes through the back of the frame through a bearing, and the rolling roller is fixedly sleeved on the second rotating rod.

[0012] Preferably, a placement plate is fixedly connected to the inner wall of the frame, and a groove is provided in the middle of the placement plate, and the clamping plate is slidably connected to the inner wall of the groove.

[0013] Preferably, a cutting mechanism is provided on the frame, and the cutting mechanism includes a movable groove, a limiting rod, a movable rod, a third spring, a cutting knife, an eccentric wheel, and an L-shaped rod. The movable groove is opened on the front and rear sides of the frame, the limiting rod is fixedly connected to the inner wall of the movable groove, the movable rod is movably sleeved on the outer wall of the limiting rod and is slidably connected to the inner wall of the movable groove, the third spring is sleeved on the limiting rod, and the third spring is located below the movable rod, the cutting knife is arranged at the bottom of the movable rod, the eccentric wheel is sleeved on the outer wall of the second rotating rod, one end of the L-shaped rod and the top of the knocking rod of the movable rod are provided with an elastic block, and the elastic block contacts the bottom of the filter plate, and the L-shaped rod contacts the bottom of the eccentric wheel.

[0014] Preferably, a dehumidification mechanism is provided on the frame, and the dehumidification mechanism includes a hot air blower, an air outlet pipe, a blanking plate, a horizontal plate, and a fourth spring. The hot air blower is fixedly installed on the top of the frame, one end of the air outlet pipe is connected to the output end of the hot air blower, and the other end of the air outlet pipe passes through the top of the frame, one end of the blanking plate is hinged to the inner wall of the frame, the horizontal plate is fixedly connected to the inner wall of the frame, and both ends of the fourth spring are respectively fixedly connected to the top of the horizontal plate and the bottom of the blanking plate.

[0015] Preferably, a crushing roller is rotatably connected to the inner wall of the frame, and there are two crushing rollers, the two crushing rollers are transmission connected via a gear set, and the crushing roller on the left is transmission connected to the second rotating rod via a pulley.

[0016] Preferably, a notch is opened on the right side of the frame, a collecting box is arranged at the bottom of the inner wall of the frame, and the collecting box is located directly below the two crushing rollers.

[0017] The present invention adopts the above technical solution to bring the following beneficial effects:

[0018] 1. The agricultural straw crushing device can drive the straw to move along the track groove into the water by setting a guide rail, a linear motor, a telescopic rod, a connecting block and a grabbing assembly to clean the straw. At the same time, the wave section of the track groove can make the straw shake up and down when cleaning in the water, so as to shake off impurities such as soil and stones attached to the straw, avoid the subsequent crushing rollers being blocked by impurities such as soil and stones, thereby improving the stability of straw crushing.

[0019] 2. The agricultural straw crushing device, by arranging a pressure rod, a movable frame, a first rotating rod, a gear, a rack and a stirring rod, can drive the water to flow when the straw is cleaned, thereby increasing the contact area between the water and the straw, making the straw cleaned more thoroughly and further reducing the influence of impurities on subsequent straw crushing.

[0020] 3. The agricultural straw crushing device can knock the bottom of the filter plate by setting a fixed plate, a knocking rod, a bottom plate and a second spring to shake off excess moisture on the straw. The driving motor and the second rotating rod can drive the rolling roller to rotate, thereby squeezing the cleaned straw to squeeze out excess moisture from the straw. At the same time, the straw can also be flattened to facilitate subsequent cutting of the straw.

[0021] 4. The agricultural straw crushing device, by arranging a third spring, an eccentric wheel, an L-shaped rod and a moving rod, can drive the cutting knife to move up and down when the second rotating rod rotates, so as to cut the squeezed straw into segments, reduce the overall length of the straw, and avoid the straw being too long and entangled on the crushing roller, causing the rear crushing roller to be blocked, thereby further improving the stability of crushing.

[0022] 5. The agricultural straw crushing device can more effectively guide the cut straw to the top of the crushing roller for crushing by arranging the transverse plate, the fourth spring and the discharge plate. The cut straw can be dried by arranging the hot air blower and the air outlet pipe to further remove the moisture of the straw, so that the straw is sufficiently dry, and the straw humidity is prevented from being too high and adhering to the crushing roller, causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front schematic diagram of the present invention;

[0024] Figure 2 It is a first front cross-sectional view of the present invention;

[0025] Figure 3 is a second front cross-sectional view of the present invention;

[0026] Figure 4 It is a schematic diagram of the back side of the present invention;

[0027] Figure 5 It is a side schematic diagram of the present invention;

[0028] Figure 6 This is an enlarged view of point A of the present invention;

[0029] Figure 7 It is an enlarged view of B of the present invention;

[0030] Figure 8 It is an enlarged view of point C of the present invention.

[0031] In the figure: 1, frame; 2, impurity removal and cleaning mechanism; 201, guide rail; 202, linear motor; 203, telescopic rod; 204, connecting block; 205, track groove; 206, grab assembly; 2061, fixed frame; 2062, electric push rod; 2063, clamping plate; 207, first spring; 208, movable frame; 209, first rotating rod; 210, stirring rod; 211, filter plate; 212, fixed plate; 213, knocking rod; 214, bottom plate; 215, second Spring; 216, driving motor; 217, second rotating rod; 218, crushing roller; 219, pressure rod; 3, cutting mechanism; 301, moving groove; 302, limiting rod; 303, moving rod; 304, third spring; 305, cutting knife; 306, eccentric wheel; 307, L-shaped rod; 4, dehumidification mechanism; 401, hot air blower; 402, air outlet pipe; 403, unloading plate; 404, horizontal plate; 405, fourth spring; 5, placement plate; 6, crushing roller; 7, collection box. DETAILED DESCRIPTION

[0032] 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.

[0033] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0036] See also Figure 1-8 , one embodiment of the present invention is: an agricultural straw crushing device, comprising a frame 1, a debris removal and cleaning mechanism 2 is arranged on the frame 1, and the debris removal and cleaning mechanism 2 comprises a guide rail 201, a linear motor 202, a telescopic rod 203, a connecting block 204, a track groove 205, a grab assembly 206, a first spring 207, a movable frame 208, a first rotating rod 209, a stirring rod 210, and a pressure rod 219;

[0037] The guide rail 201 is installed on the inner wall of the frame 1, the linear motor 202 is arranged on the guide rail 201, the telescopic rod 203 is arranged below the linear motor 202, the connecting block 204 is connected to the bottom of the movable end of the telescopic rod 203, the track groove 205 is opened on the inner wall of the frame 1, and one end of the connecting block 204 is slidably connected to the inner wall of the track groove 205 through a slider, the track groove 205 has a wave section, and the grabbing component 206 is arranged on the connecting block 204;

[0038] The first spring 207 is fixedly connected to the bottom of the inner wall of the frame 1, the movable frame 208 is connected to the top of the first spring 207, the first rotating rod 209 is rotatably connected to the inner wall of the frame 1 through a bearing, the stirring rod 210 is arranged on the outer wall of the first rotating rod 209, and the pressing rod 219 is arranged at the bottom of the connecting block 204, and the pressing rod 219 squeezes the bottom of the inner wall of the movable frame 208;

[0039] The grab assembly 206 includes a fixed frame 2061, an electric push rod 2062, and a clamping plate 2063. The fixed frame 2061 is fixedly connected to the connecting block 204. The electric push rod 2062 is fixedly installed on the top of the fixed frame 2061, and the movable end of the electric push rod 2062 passes through the top of the fixed frame 2061. The clamping plate 2063 is fixedly connected to the bottom of the movable end of the electric push rod 2062.

[0040] The outer wall of the first rotating rod 209 is fixedly sleeved with a gear, the side of the movable frame 208 is provided with a rack, and the gear is meshed with the rack, the inner wall of the frame 1 is fixedly connected with a filter plate 211, the inner wall of the frame 1 is fixedly connected with a fixed plate 212, a knocking rod 213 is provided on the fixed plate 212, and the knocking rod 213 moves through the bottom of the fixed plate 212, the bottom of the knocking rod 213 is fixedly connected with a bottom plate 214, the top of the knocking rod 213 is provided with an elastic block, and the elastic block contacts the bottom of the filter plate 211, the knocking rod 213 is sleeved with a second spring 215, the two ends of the second spring 215 are respectively fixedly connected to the fixed plate 212 and the knocking rod 213, and the stirring rod 210 drives the knocking rod 213 to knock on the bottom of the filter plate 211.

[0041] The impurity removal and cleaning mechanism 2 also includes a driving motor 216, a second rotating rod 217, and a rolling roller 218. The driving motor 216 is fixedly installed on the back of the frame 1 through a mounting plate, one end of the second rotating rod 217 is fixedly connected to the output end of the driving motor 216, and the other end of the second rotating rod 217 passes through the back of the frame 1 through a bearing, and the rolling roller 218 is fixedly sleeved on the second rotating rod 217.

[0042] The inner wall of the frame 1 is fixedly connected with a placement plate 5 , and a groove is provided in the middle of the placement plate 5 , and the clamping plate 2063 is slidably connected with the inner wall of the groove.

[0043] The frame 1 is provided with a cutting mechanism 3, which includes a moving groove 301, a limiting rod 302, a moving rod 303, a third spring 304, a cutting knife 305, an eccentric wheel 306, and an L-shaped rod 307. The moving groove 301 is arranged at the front and rear sides of the frame 1, the limiting rod 302 is fixedly connected to the inner wall of the moving groove 301, the moving rod 303 is movably sleeved on the outer wall of the limiting rod 302 and is slidably connected to the inner wall of the moving groove 301, the third spring 304 is sleeved on the limiting rod 302, and the third spring 304 is below the moving rod 303, the cutting knife 305 is arranged at the bottom of the moving rod 303, the eccentric wheel 306 is sleeved on the outer wall of the second rotating rod 217, one end of the L-shaped rod 307 and the top of the knocking rod 213 of the moving rod 303 are provided with an elastic block, and the elastic block contacts the bottom of the filter plate 211, and the L-shaped rod 307 contacts the bottom of the eccentric wheel 306.

[0044] Working principle: Pour clean water into the frame 1 to make the water level exceed the top of the movable frame 208, place the straw through the fixed frame 2061 on the placement plate 5, start the electric push rod 2062 to drive the clamping plate 2063 to rise, so as to clamp the straw, and then start the linear motor 202 after clamping. The linear motor 202 drives the straw to move to the right, and under the action of the track groove 205 and the connecting block 204, the straw will be driven to move along the track groove 205, and the straw will be completely immersed in water to clean the straw. The wave section in the middle of 05 drives the straw to swing up and down, thereby shaking off impurities such as soil and stones on the straw. At the same time, when the straw passes through the wave section, it drives the pressure rod 219 to move up and down, thereby reciprocatingly squeezing the bottom of the inner wall of the movable frame 208, so that the movable frame 208 moves up and down under the action of the first spring 207, thereby driving the first rotating rod 209 to swing back and forth through the gear and rack, and then driving the stirring rod 210 to rotate, stirring the water inside the frame 1, thereby increasing the contact area between water and straw, and better cleaning the surface of the straw. Cleaning is completed The straw will continue to move to the filter plate 211 through the track groove 205, and the second rotating rod 217 will be driven to rotate by starting the driving motor 216, thereby driving the rolling roller 218 to rotate, squeezing the straw and squeezing out the water attached to the straw. When one end of the straw touches the rolling roller 218, the electric push rod 2062 is started to drive the clamping plate 2063 to descend, loosening the straw, and the linear motor 202 moves to the left to reset. When the connecting block 204 passes through the wave groove again, the movable frame 208 will move up and down again, so that the stirring rod 210 on the right side is Under the action of the second spring 215, the knocking rod 213 is driven to knock on the bottom of the filter plate 211, so that the moisture squeezed on the straw is shaken off, and the straw will move to the right under the action of the rolling roller 218. At the same time, the rotation of the second rotating rod 217 will drive the eccentric wheel 306 to rotate, thereby driving the L-shaped rod 307 to move up and down under the action of the third spring 304. The up and down movement of the L-shaped rod 307 will drive the moving rod 303 to move up and down, thereby driving the cutting knife 305 to move up and down, cutting the squeezed straw into sections to avoid the straw being too long and causing subsequent crushing and blockage.

[0045] See also Figure 1-8 On the basis of the above embodiment, in another embodiment of the present invention, preferably, a dehumidification mechanism 4 is provided on the frame 1, and the dehumidification mechanism 4 includes a hot air blower 401, an air outlet pipe 402, a blanking plate 403, a horizontal plate 404, and a fourth spring 405. The hot air blower 401 is fixedly installed on the top of the frame 1, one end of the air outlet pipe 402 is connected to the output end of the hot air blower 401, and the other end of the air outlet pipe 402 passes through the top of the frame 1, one end of the blanking plate 403 is hinged on the inner wall of the frame 1, and the horizontal plate 404 is fixedly connected to the inner wall of the frame 1, and the two ends of the fourth spring 405 are respectively fixedly connected to the top of the horizontal plate 404 and the bottom of the blanking plate 403.

[0046] A crushing roller 6 is rotatably connected to the inner wall of the frame 1, and there are two crushing rollers 6. The two crushing rollers 6 are connected by a gear set, and the crushing roller 6 on the left is connected by a pulley to the second rotating rod 217.

[0047] A notch is provided on the right side of the frame 1 , and a collecting box 7 is provided at the bottom of the inner wall of the frame 1 , and the collecting box 7 is located directly below the two crushing rollers 6 .

[0048] Working principle: the cut straw will slide along the inclined surface of the filter plate 211 to the feed plate 403, and by starting the hot air blower 401, the hot air will be blown onto the cut straw through the air outlet pipe 402, and the straw will be further dried to make it dry enough. At the same time, the hot air blown onto the feed plate 403 will drive the feed plate 403 to shake under the action of the fourth spring 405, so that the dried straw will fall along the feed plate 403 more effectively onto the two crushing rollers 6 for crushing, and the crushed straw will fall into the collection box 7 for collection.

[0049] The present invention provides an agricultural straw crushing device. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. An agricultural straw crushing device, comprising a frame (1), characterized in that: The frame (1) is provided with a debris removal and cleaning mechanism (2), the debris removal and cleaning mechanism (2) comprising a guide rail (201), a linear motor (202), a telescopic rod (203), a connecting block (204), a track groove (205), a grabbing assembly (206), a first spring (207), a movable frame (208), a first rotating rod (209), a stirring rod (210), and a pressure rod (219); The guide rail (201) is mounted on the inner wall of the frame (1); the linear motor (202) is arranged on the guide rail (201); the telescopic rod (203) is arranged below the linear motor (202); the connecting block (204) is connected to the bottom of the movable end of the telescopic rod (203); the track groove (205) is opened on the inner wall of the frame (1); one end of the connecting block (204) is slidably connected to the inner wall of the track groove (205) via a slider; the track groove (205) has a wavy section; and the grabbing component (206) is arranged on the connecting block (204); The first spring (207) is fixedly connected to the bottom of the inner wall of the frame (1); the movable frame (208) is connected to the top of the first spring (207); the first rotating rod (209) is rotatably connected to the inner wall of the frame (1) via a bearing; the stirring rod (210) is arranged on the outer wall of the first rotating rod (209); the pressing rod (219) is arranged at the bottom of the connecting block (204); and the pressing rod (219) presses the bottom of the inner wall of the movable frame (208); The grabbing assembly (206) comprises a fixed frame (2061), an electric push rod (2062), and a clamping plate (2063); the fixed frame (2061) is fixedly connected to the connecting block (204); the electric push rod (2062) is fixedly mounted on the top of the fixed frame (2061), and the movable end of the electric push rod (2062) passes through the top of the fixed frame (2061); and the clamping plate (2063) is fixedly connected to the bottom of the movable end of the electric push rod (2062); The outer wall of the first rotating rod (209) is fixedly sleeved with a gear, the side of the movable frame (208) is provided with a rack, and the gear is meshed with the rack, the inner wall of the frame (1) is fixedly connected with a filter plate (211), the inner wall of the frame (1) is fixedly connected with a fixed plate (212), a knocking rod (213) is provided on the fixed plate (212), and the knocking rod (213) movably passes through the bottom of the fixed plate (212), and the knocking rod (213) is connected to the inner wall of the frame (1). 3) a bottom plate (214) is fixedly connected to the bottom, an elastic block is arranged on the top of the knocking rod (213), and the elastic block contacts the bottom of the filter plate (211), a second spring (215) is sleeved on the knocking rod (213), and two ends of the second spring (215) are respectively fixedly connected to the fixed plate (212) and the knocking rod (213), and the stirring rod (210) drives the knocking rod (213) to knock the bottom of the filter plate (211).

2. The agricultural straw crushing device according to claim 1, characterized in that: The impurity removal and cleaning mechanism (2) further comprises a driving motor (216), a second rotating rod (217), and a rolling roller (218); the driving motor (216) is fixedly mounted on the back of the frame (1) via a mounting plate; one end of the second rotating rod (217) is fixedly connected to the output end of the driving motor (216), and the other end of the second rotating rod (217) passes through the back of the frame (1) via a bearing; and the rolling roller (218) is fixedly sleeved on the second rotating rod (217).

3. The agricultural straw crushing device according to claim 2, characterized in that: A placement plate (5) is fixedly connected to the inner wall of the frame (1), and a groove is provided in the middle of the placement plate (5), and the clamping plate (2063) is slidably connected to the inner wall of the groove.

4. The agricultural straw crushing device according to claim 3, characterized in that: The frame (1) is provided with a cutting mechanism (3), the cutting mechanism (3) comprising a moving groove (301), a limiting rod (302), a moving rod (303), a third spring (304), a cutting knife (305), an eccentric wheel (306), and an L-shaped rod (307); the moving groove (301) is provided at the front and rear sides of the frame (1); the limiting rod (302) is fixedly connected to the inner wall of the moving groove (301); the moving rod (303) is movably sleeved on the outer wall of the limiting rod (302) and is slidably connected to the inner wall of the moving groove (301). The third spring (304) is sleeved on the limit rod (302), and the third spring (304) is located below the moving rod (303); the cutting knife (305) is arranged at the bottom of the moving rod (303); the eccentric wheel (306) is sleeved on the outer wall of the second rotating rod (217); one end of the L-shaped rod (307) and the top of the knocking rod (213) of the moving rod (303) are provided with an elastic block, and the elastic block contacts the bottom of the filter plate (211), and the L-shaped rod (307) contacts the bottom of the eccentric wheel (306).

5. The agricultural straw crushing device according to claim 4, characterized in that: The frame (1) is provided with a dehumidification mechanism (4), the dehumidification mechanism (4) comprising a hot air blower (401), an air outlet pipe (402), a blanking plate (403), a transverse plate (404), and a fourth spring (405); the hot air blower (401) is fixedly mounted on the top of the frame (1); one end of the air outlet pipe (402) is connected to the output end of the hot air blower (401), and the other end of the air outlet pipe (402) passes through the top of the frame (1); one end of the blanking plate (403) is hinged on the inner wall of the frame (1); the transverse plate (404) is fixedly connected to the inner wall of the frame (1); and two ends of the fourth spring (405) are respectively fixedly connected to the top of the transverse plate (404) and the bottom of the blanking plate (403).

6. The agricultural straw crushing device according to claim 5, characterized in that: A crushing roller (6) is rotatably connected to the inner wall of the frame (1), and the number of the crushing rollers (6) is two. The two crushing rollers (6) are transmission-connected via a gear set, and the crushing roller (6) on the left side is transmission-connected to the second rotating rod (217) via a pulley.

7. The agricultural straw crushing device according to claim 6, characterized in that: A notch is provided on the right side of the frame (1), and a collecting box (7) is provided at the bottom of the inner wall of the frame (1), and the collecting box (7) is located directly below the two crushing rollers (6).

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