Straw hammering and cutting integrated pulverizing device

Abstract

The present application relates to the technical field of breaking, and specifically discloses a straw hammering and cutting integrated crushing device, which comprises a shell, a feeding unit for feeding straw into the shell, a pushing unit arranged above the feeding unit and comprising a sliding rod and a sleeve plate rotatably installed on the sliding rod, a counterweight pressing plate installed at the lower end of the sleeve plate, and a transmission unit arranged in the shell and used for driving the pushing unit to cyclically move, wherein the specific trajectory movement of the sliding rod in the circulating slide realizes the periodic lifting and pressing of the counterweight pressing plate and the separation of the pressing plate from the straw; during the pushing stroke, the counterweight pressing plate compacts and pushes the straw, so that the straw can smoothly enter the guide channel; during the resetting stroke, the pressing plate is automatically lifted and separated from the straw, thereby effectively avoiding the problem that the straw in the guide channel is pulled out during the resetting stroke, and ensuring the continuous and stable feeding of the material.

Description

Technical Field

[0001] This invention relates to the field of crushing technology, and more specifically, to a straw hammer-crushing integrated crushing device. Background Technology

[0002] To achieve the resource utilization of straw, it is necessary to crush the straw. Existing crushing devices usually have a conveyor belt at the inlet to feed the straw into the interlocking rollers inside the device for initial crushing, and the straw is pushed to the subsequent cutting and crushing zone by the interlocking action of the rollers. However, due to the limited friction between the conveyor belt and the straw, the straw is prone to slipping on the conveyor belt during the process of entering the interlocking zone of the rollers, which leads to obstruction of feeding. As a result, long straw cannot enter the interlocking zone of the rollers smoothly, and even long straw may back up, affecting the smoothness of straw crushing. Summary of the Invention

[0003] To overcome the above-mentioned technical problems, the present invention proposes a straw hammer-chopping and crushing integrated device.

[0004] The objective of this invention can be achieved through the following technical solutions: A straw hammer-chopping and pulverizing device includes: The shell has a cover on top, and the two ends of the cover are respectively provided with a feed bin and a discharge bin; The feeding unit, located inside the feeding hopper, is used to transport straw into the casing; The pushing unit is located above the feeding unit and includes a slide rod and a sleeve plate rotatably mounted on the slide rod. A counterweight plate is installed at the lower end of the sleeve plate. A transmission unit, which is disposed inside a housing, includes a transmission shaft rotatably mounted on the inner wall of the housing and a circulation slide fixed to the inner wall of the housing. The slide rod is slidably embedded in the circulation slide. A crank is fixedly connected to the transmission shaft. A connecting rod journal is fixed to the end of the crank away from the transmission shaft. A connecting rod is hinged between the connecting rod journal and the slide rod. The guiding unit, located at the output end of the feeding unit, is used to guide the straw on the feeding unit into the housing. The extrusion unit is movably positioned directly above the conveying unit and is adapted to the conveying unit.

[0005] As a further aspect of the present invention: the feeding unit includes two sets of conveying rollers rotatably mounted inside the housing, a conveyor belt connecting the two sets of conveying rollers, a first motor mounted at the bottom of the housing, and a first transmission belt connecting the first motor to one of the sets of conveying rollers.

[0006] As a further aspect of the present invention: the circulating slide includes an ascending slide, a descending slide, a pushing slide, and a transition slide connected in sequence from end to end. The transition slide is located on the side close to the guiding unit. The height of the ascending slide gradually increases at the end away from the transition slide. The pushing slide is parallel to the conveying direction of the feeding unit.

[0007] As a further embodiment of the present invention: a one-way gate is rotatably installed at the connection between the pushing slide and the rising slide, and a limiting block adapted to the one-way gate is provided at the top of the pushing slide.

[0008] As a further aspect of the present invention: the connecting rod includes a first rod body hinged to the connecting rod journal and a second rod body hinged to the slide rod, wherein a rod sleeve is slidably sleeved at one end of the first rod body and the second rod body that are close to each other, and a first spring is provided inside the rod sleeve that abuts against the first rod body and the second rod body.

[0009] As a further aspect of the present invention: the guiding unit includes a guiding roller rotatably mounted in the housing, the guiding roller and the conveying roller being connected by a second transmission belt, and the transmission shaft and the guiding roller being connected by a third transmission belt.

[0010] As a further aspect of the present invention: the extrusion unit includes two sets of lifting guide rods that are vertically slidably mounted on the cover, a push block is provided at the lower end of the lifting guide rod, a second spring is provided between the push block and the cover, a connecting rod is fixedly connected between the two push blocks, and an extrusion roller is rotatably mounted on the connecting rod; a cam adapted to the push block is provided on the transmission shaft; The extrusion roller has several annular protrusions axially arranged on it, and the guide roller has several annular grooves axially arranged on it to match the annular protrusions.

[0011] As a further aspect of the present invention: the discharge bin includes a first discharge cover adapted to the cutting unit and a second discharge cover adapted to the hammer cutting unit, wherein the first discharge cover is provided with a connecting plate on the side facing the conveying unit.

[0012] As a further aspect of the present invention: the cutting unit includes a first rotating shaft rotatably mounted inside the housing, a mounting bracket fixed on the first rotating shaft, and a plurality of cutting components arranged circumferentially on the mounting bracket; The cutting component includes a plate fixed on a mounting frame. One side of the plate is provided with a blade adapted to a connecting plate, and the other side of the plate is provided with rake teeth. The connecting plate is provided with grooves corresponding to the rake teeth.

[0013] As a further aspect of the present invention: the hammer cutting unit includes a second rotating shaft rotatably mounted inside the housing, a plurality of partition disks are axially arranged on the second rotating shaft, a plurality of mounting shafts are circumferentially fixed between adjacent partition disks, and a plurality of hammer blades are rotatably mounted on the mounting shafts.

[0014] The beneficial effects of this invention are: This invention achieves the periodic lifting and lowering of the counterweight platen for pressing and releasing materials through the specific trajectory movement of the slide bar within the circulating slide. During the pushing stroke (the slide bar slides towards the drive shaft), the counterweight platen compacts and pushes the straw, ensuring that the straw smoothly enters the conveying channel. During the resetting stroke (the slide bar slides away from the drive shaft and rises), the platen automatically lifts and detaches from the straw, effectively avoiding the problem of pulling out straw that has already entered the conveying channel during resetting, thus ensuring continuous and stable material conveying that only goes in and does not go out. The counterweight plate is rotatably connected to the slide bar via a sleeve plate. Its own weight allows it to hang down naturally and fit tightly against the surface of the straw pile when it descends. This allows the counterweight plate to adapt to straw materials of different thicknesses or uneven stacking, providing continuous and effective downward pressure to compact the loose straw and push it stably into the crushing area. This helps to improve the processing efficiency and effect of the subsequent crushing unit and reduce the risk of clogging. The transmission unit works precisely with the pushing and feeding units. The rotational motion of the crank is converted into the sliding motion of the slide bar in the fixed circulating slide through the connecting rod, driving the pressure plate to complete the continuous cycle of "pressing down-pushing-lifting-resetting". Combined with the continuous feeding of the feeding unit, it realizes efficient, automated and continuous operation of the entire process of straw from conveying, compacting and pushing to crushing. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram from another perspective of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a cross-sectional view from another perspective of the present invention; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is a schematic diagram of the structure of the feeding unit and the transmission unit in this invention; Figure 7 This is a schematic diagram of the transmission unit in this invention; Figure 8 This is a schematic diagram of the circulating slide in this invention; Figure 9This is a schematic diagram of the connecting rod in this invention; Figure 10 This is a schematic diagram of the structure of the guiding unit and the extrusion unit in this invention; Figure 11 This is a schematic diagram of the structure of the cutting unit and the hammer cutting unit in this invention; Figure 12 for Figure 12 Enlarged view of point A in the middle.

[0017] In the picture: 100. Shell; 110. Cover; 120. Feed hopper; 130. Discharge hopper; 131. First discharge hood; 132. Second discharge hood; 133. Connecting plate; 134. Gear groove; 200, Feeding unit; 210, Conveying roller; 220, Conveying belt; 230, First motor; 240, First transmission belt; 250, Second transmission belt; 300. Pushing unit; 310. Slide bar; 320. Sleeve plate; 330. Counterweight pressure plate; 400. Transmission unit; 410. Drive shaft; 420. Crank; 430. Circulating slide; 431. Rising slide; 432. Falling slide; 433. Pushing slide; 434. Transition slide; 435. One-way gate; 436. Limiting block; 440. Connecting rod; 441. First rod body; 442. Second rod body; 443. Rod sleeve; 444. First spring; 450. Cam; 460. Third transmission belt; 470. Connecting rod journal; 500. Conveying unit; 510. Conveying roller; 520. Annular groove; 600, Extrusion unit; 610, Lifting guide rod; 620, Push block; 630, Second spring; 640, Connecting rod; 650, Extrusion roller; 660, Annular convex rib; 700, Segmentation unit; 710, First rotating shaft; 720, Mounting bracket; 730, Cutting component; 731, Plate; 732, Blade; 733, Rake teeth; 800, Hammer cutting unit; 810, Second rotating shaft; 820, Separator plate; 830, Mounting shaft; 840, Hammer cutting blade; 850, Second motor; 860, Fourth transmission belt; 870, Fifth transmission belt. Detailed Implementation

[0018] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0019] Please see Figures 1 to 4 This invention discloses a straw hammer-chopping integrated crushing device, comprising a housing 100, a feeding unit 200, a pushing unit 300, a transmission unit 400, a guiding unit 500, and an extrusion unit 600. A cover 110 is provided above the housing 100, and a feeding bin 120 and a discharging bin 130 are respectively provided at both ends of the cover 110. The feeding unit 200 is disposed in the feeding bin 120 and is used to convey straw into the housing 100. Please see Figure 5 and Figure 6 The pushing unit 300 is disposed above the feeding unit 200 and includes a slide rod 310 and a sleeve plate 320 rotatably mounted on the slide rod 310. A counterweight plate 330 is installed at the lower end of the sleeve plate 320. The transmission unit 400 is disposed inside the housing 100 and includes a transmission shaft 410 rotatably mounted on the inner wall of the housing 100 and a circulation slide 430 fixed to the inner wall of the housing 100. The slide rod 310 is slidably embedded in the circulation slide 430. A crank 420 is fixedly connected to the transmission shaft 410. A connecting rod journal 470 is fixed at the end of the crank 420 away from the transmission shaft 410. A connecting rod 440 is hinged between the connecting rod journal 470 and the slide rod 310. The guiding unit 500 is disposed at the output end of the feeding unit 200 and is used to guide the straw on the feeding unit 200 into the housing 100; the extrusion unit 600 is movably disposed directly above the guiding unit 500 and is adapted to the guiding unit 500. Specifically, straw is placed on the feeding unit 200, which transports the straw into the housing 100 for crushing. During the straw transport process, the drive shaft 410 drives the crank 420 and connecting rod journal 470 to rotate circumferentially. This, in turn, causes the slide bar 310 to slide along the circulating slide rail 430 under the action of the connecting rod 440. When the slide bar 310 slides along the circulating slide rail 430 toward the drive shaft 410, the counterweight plate 330 presses down on the straw in the feeding unit 200, thus pressing the feeding unit 200... The straw is pushed into the conveying channel between the conveying unit 500 and the extrusion unit 600 to ensure that the straw can enter the conveying channel smoothly. Then, when the slide bar 310 slides along the circulating slide 430 to the side away from the drive shaft 410 (i.e., the reset stage), the slide bar 310 gradually rises, thereby causing the counterweight plate 330 below to detach from the straw, preventing the straw that has entered the conveying channel from being pulled out. When the slide bar 310 slides and resets, it falls again, so that the counterweight plate 330 presses on the straw again. This process is repeated to achieve continuous pushing of straw.

[0020] It should be noted that the present invention achieves the periodic lifting and lowering of the counterweight platen 330 for pressing and releasing material by the specific trajectory movement of the slide bar 310 within the circulating slide 430; during the pushing stroke (the slide bar 310 slides towards one side of the drive shaft 410), the counterweight platen 330 compacts and pushes the straw, ensuring that the straw smoothly enters the guide channel; during the reset stroke (the slide bar 310 slides away from the drive shaft 410 and rises), the platen automatically lifts and detaches from the straw, effectively avoiding the problem of pulling out the straw that has entered the guide channel during the reset, thus ensuring continuous and stable material conveying that only goes in and does not go out. The counterweight plate 330 is rotatably connected to the slide bar 310 via the sleeve plate 320. Its own weight allows it to hang down naturally and fit tightly against the surface of the straw pile when it descends. This allows the counterweight plate 330 to adapt to straw materials of different thicknesses or uneven stacking, providing continuous and effective downward pressure to compact the loose straw and push it stably into the crushing area. This helps to improve the processing efficiency and effect of the subsequent crushing unit and reduce the risk of clogging. The transmission unit 400 is precisely coordinated with the pushing unit 300 and the feeding unit 200. The rotational motion of the crank 420 is converted into the cyclic sliding of the slide bar 310 in the fixed circulating slide 430 through the connecting rod 440, driving the pressure plate to complete the continuous cyclic action of "pressing down-pushing-lifting-resetting". Combined with the continuous feeding of the feeding unit 200, it realizes the efficient, automated and continuous operation of the entire process of straw from conveying, compacting and pushing to crushing.

[0021] In one embodiment, please refer to Figure 4 and Figure 5The feeding unit 200 includes two sets of conveying rollers 210 rotatably mounted inside the housing 100, and a conveyor belt 220 is connected between the two sets of conveying rollers 210. A first motor 230 is installed at the bottom of the housing 100, and a first transmission belt 240 is connected between the first motor 230 and one of the sets of conveying rollers 210. Specifically, under the transmission action of the first transmission belt 240, the first motor 230 drives the conveyor roller 210 to rotate, thereby driving the conveyor belt 220 to transport the straw into the shell 100.

[0022] Further, please refer to Figure 7 and Figure 8 The circulating chute 430 includes an ascending chute 431, a descending chute 432, a pushing chute 433, and a transition chute 434 connected in sequence. The transition chute 434 is located on the side closer to the guiding unit 500. The height of the end of the ascending chute 431 away from the transition chute 434 gradually increases. The pushing chute 433 is parallel to the conveying direction of the feeding unit 200. Specifically, in the initial state, the slide bar 310 is located at the junction of the falling slide 432 and the pushing slide 433. At this time, the counterweight plate 330 is pressing on the straw on the conveyor belt 220. The connecting rod 440 pulls the slide bar 310 horizontally along the pushing slide 433 towards the transition slide 434, thereby driving the counterweight plate 330 to push the straw on the conveyor belt 220 towards the guiding unit 500, so that the straw can smoothly enter the guiding channel. Until the slide bar 310 reaches the transition slide 434, the connecting rod 440 pushes the slide bar 310 into the rising slide 431. During the sliding process, the height of the slide bar 310 gradually increases. This causes the lower counterweight plate 330 to gradually detach from the straw on the conveyor belt 220, preventing the straw that has entered the guide channel from being pulled out. Until the slide bar 310 moves to the junction of the rising slide 431 and the falling slide 432, the counterweight plate 330 returns to its initial position directly above. Then, under the gravity of the counterweight plate 330, the slide bar 310 automatically slides down along the falling slide 432, thereby resetting the counterweight plate 330 and pressing it onto the straw again. Then, the connecting rod 440 pulls the slide bar 310 again to slide along the pushing slide 433 toward the guide unit 500, which drives the counterweight plate 330 to push the straw again.

[0023] It should be noted that the four-section partition design of the circulating slide 430 strictly limits the movement trajectory of the slide bar 310: the pushing slide 433 (horizontal section) ensures that the counterweight plate 330 pushes the straw horizontally along the direction of the conveyor belt 220, avoiding deviation; the rising slide 431 (incline section) forcibly lifts the slide bar 310 after pushing, so that the plate is accurately separated from the straw surface; the falling slide 432 (vertical section) uses the counterweight plate 330's own weight to achieve automatic reset, avoiding mechanism jamming; the above structure blocks the contact between the counterweight plate 330 and the material during the reset stroke, fundamentally preventing the straw that has been sent into the guide channel from being pulled out.

[0024] Furthermore, please refer to Figure 8 In order to ensure that the slide bar 310 can smoothly enter the rising slide 431 from the transition slide 434 during the reset process, a one-way gate 435 is rotatably installed at the connection between the push slide 433 and the rising slide 431, and a limit block 436 adapted to the one-way gate 435 is provided at the top of the push slide 433. Specifically, when the slide bar 310 slides horizontally along the pusher slide 433 to the transition slide 434, it can flip the one-way gate 435 upward and lift it up, so that the slide bar 310 can pass smoothly under the one-way gate 435 and reach the transition slide 434. Then, the one-way gate 435 separates from the slide bar 310 and automatically flips downward and resets under the action of gravity. When the slide bar 310 resets, due to the restriction of the one-way gate 435, the one-way gate 435 blocks the connection between the pusher slide 433 and the transition slide 434, forcing the slide bar 310 to only move upward along the guide of the one-way gate 435 to the rising slide 431, thereby restricting the one-way circular movement path of the slide bar 310 and ensuring that the counterweight plate 330 can always be separated from the straw on the conveyor belt 220 during the reset process.

[0025] It should be noted that the coordinated design of the one-way gate 435 and the limiting block 436 forms a one-way path guide at the junction of the pushing slide 433 and the transition slide 434. During the pushing stroke, when the slide rod 310 slides along the pushing slide 433, it lifts the one-way gate 435 and passes through the transition slide 434 without resistance. During the reset stroke, when the slide rod 310 returns, the one-way gate 435 is reset by gravity and then held in place by the limiting block 436, completely blocking the entrance of the pushing slide 433. This forces the slide rod 310 to move only along the inclined rising slide 431, thereby preventing the slide rod 310 from reversing back to the pushing slide 433 and completely avoiding the risk of the counterweight plate 330 coming into contact with the straw due to incorrect path during the reset phase. The operation of the one-way gate 435 relies entirely on gravity and mechanical limiting. After disengaging from the slide bar 310, it automatically droops down and is locked in a horizontal position by the limiting block 436, forming a rigid isolation barrier. It is only pushed open by the positive thrust of the slide bar 310, without the need for an additional drive mechanism, ensuring absolute physical isolation between the slide bar 310 and the pusher slide 433 during the reset stroke, thus blocking the possibility of material backflow from the source. The forced path constraint of the one-way gate 435 ensures that the slide bar 310 is guided to the rising slide 431 during the reset phase, so that the counterweight plate 330 will not come into contact with the pushed straw at all during the entire reset process, eliminating the possibility of pulling or interfering with the feeding of the conveyor belt 220.

[0026] Additionally, please see Figure 7 and Figure 9 To prevent the slide bar 310 from interfering with the transmission unit 400 during its cyclic movement along the circulating slide rail 430, the connecting rod 440 includes a first rod body 441 hinged to the connecting rod journal 470 and a second rod body 442 hinged to the slide bar 310. A rod sleeve 443 is slidably sleeved at one end of the first rod body 441 and the second rod body 442 that are close to each other. A first spring 444 is provided inside the rod sleeve 443 that abuts against the first rod body 441 and the second rod body 442. Specifically, the connecting rod 440 is configured as a three-section structure, with a certain range of extension and retraction between the first rod 441 and the second rod 442, so that the entire connecting rod 440 can be extended and retracted to a certain length. When the slide bar 310 falls back from the falling slide 432, the connecting rod 440 can adaptively extend and retract, thereby effectively preventing the slide bar 310 from getting stuck.

[0027] It is worth noting that the connecting rod 440 adopts a three-section telescopic design, with an internal first spring 444 providing elastic resistance. When the slide rod 310 falls rapidly back down along the falling slide 432, its instantaneous motion trajectory may deviate from the rotation trajectory of the crank 420 driven by the transmission shaft 410. At this time, the first spring 444 is compressed and contracted, allowing the first rod 441 and the second rod 442 to slide relative to each other in the rod sleeve 443, actively absorbing the displacement difference and preventing the connecting rod 440 from jamming or deforming due to instantaneous trajectory misalignment. The telescopic structure enables the connecting rod 440 to have adaptive length. During the falling and resetting phase of the slide bar 310, the spring buffer mechanism dynamically adjusts the effective length of the connecting rod 440 to match the fixed rotation of the transmission unit 400 and the variable speed movement of the slide bar 310. During the pushing / lifting phase, the first spring 444 extends to restore the connecting rod 440 to its rigid state, ensuring efficient power transmission. This structure eliminates the strong coupling constraint between the transmission trajectory and the slide rail trajectory, improving the system's tolerance to dynamic errors.

[0028] In yet another embodiment, please refer to Figure 1 and Figure 10The guiding unit 500 includes a guiding roller 510 rotatably mounted in the housing 100. The guiding roller 510 and the conveying roller 210 are connected by a second transmission belt 250. The transmission shaft 410 and the guiding roller 510 are connected by a third transmission belt 460. Specifically, when the first motor 230 drives the conveying roller 210 to rotate, under the transmission action of the second transmission belt 250, it can synchronously drive the guide roller 510 to move in the same direction as the conveying roller 210, thereby ensuring the synchronicity of straw conveying and guiding. Similarly, under the transmission action of the third transmission belt 460, the guide roller 510 can synchronously drive the transmission shaft 410 to rotate, thereby driving the pushing unit 300 to push materials in a cycle.

[0029] Further, please refer to Figure 5 , Figure 6 and Figure 10 The extrusion unit 600 includes two sets of lifting guide rods 610 vertically slidably mounted on the cover 110. A push block 620 is provided at the lower end of the lifting guide rod 610. A second spring 630 is provided between the push block 620 and the cover 110. A connecting rod 640 is fixedly connected between the two push blocks 620. An extrusion roller 650 is rotatably mounted on the connecting rod 640. A cam 450 adapted to the push block 620 is provided on the transmission shaft 410. Specifically, in the initial state, due to the elastic force of the second spring 630, the squeezing roller 650 can always press against the guide roller 510, thereby pressing the straw into the guide channel. The squeezing roller 650 can be passively rotated when the guide roller 510 rotates, thereby smoothly feeding the straw in the guide channel into the shell 100 for crushing. The cam 450 is driven to rotate by the drive shaft 410. The cam 450 periodically lifts the push block 620. When the pushing unit 300 pushes the straw into the guide channel, the cam 450 just lifts the push block 620 upward, so that the extrusion roller 650 and the guide roller 510 are briefly separated, which facilitates the straw to enter the guide channel. After the pushing unit 300 finishes pushing, the protrusion of the cam 450 separates from the push block 620, and the extrusion roller 650 falls down again to extrude the straw, which increases the friction between the straw and the guide roller 510 and ensures the stability of the guide process.

[0030] It is worth noting that, under default conditions, the second spring 630 pushes the extrusion roller 650 to press tightly against the straw on the surface of the guide roller 510, increasing friction to prevent slippage and ensuring that the straw is stably introduced into the crushing zone; when the straw thickness fluctuates, the lifting guide rod 610 is pulled by the top push block 620 to compress the second spring 630, and the extrusion roller 650 rises adaptively to avoid hard extrusion that could cause the straw to break or become blocked. The mechanical linkage between the cam 450 and the pushing unit 300 decouples key actions; when the slide bar 310 pushes the straw to the conveying channel along the pushing slide 433, the cam 450 protrusion pushes the push block 620, forcing the extrusion roller 650 to rise, actively making room for feeding and eliminating the interference of the extrusion roller 650 on the pushing; when the pushing is completed, the cam 450 protrusion disengages from the push block 620, and the second spring 630 drives the extrusion roller 650 to press down instantly, immediately compacting the straw and enhancing the conveying friction.

[0031] Furthermore, please refer to Figure 10 In order to improve the straw conveying effect of the extrusion roller 650 and the guide roller 510, the extrusion roller 650 is provided with a number of annular protrusions 660 in the axial direction, and the guide roller 510 is provided with a number of annular grooves 520 that are adapted to the annular protrusions 660 in the axial direction. Specifically, the interlocking of the annular convex 660 and the corresponding annular groove 520 increases the gripping effect on the straw and prevents the straw from slipping on the guide roller 510.

[0032] When the straw enters between the guide roller 510 and the extrusion roller 650, it is forcibly embedded in the annular groove 520. At the same time, it is subjected to the radial pressing action of the annular convex 660 above, which increases the contact area and engagement depth between the straw and the roller surface. This fundamentally eliminates the relative sliding between the straw and the surface of the guide roller 510. The straw is laterally limited by the annular convex 660 in the annular groove 520 and cannot move laterally, ensuring that the straw is accurately and linearly conveyed along the axis of the guide roller 510, avoiding blockage or uneven crushing caused by deviation. The annular groove 520 actively accommodates debris during rotation, preventing it from accumulating on the roller surface. The engagement between the annular convex 660 and the annular groove 520 generates a shearing action, peeling the sticky straw off the roller surface, effectively inhibiting the accumulation of debris and maintaining the cleanliness of the roller surface.

[0033] In further embodiments, please refer to Figure 11 The discharge bin 130 includes a first discharge cover 131 adapted to the cutting unit 700 and a second discharge cover 132 adapted to the hammer cutting unit 800. The first discharge cover 131 is provided with a connecting plate 133 on the side facing the guide and conveying unit 500. Specifically, with the cooperation of the conveying unit 500 and the extrusion unit 600, the straw is fed into the first discharge hood 131 through the conveying channel. The straw is then cut into segments by the cutting unit 700. Subsequently, the cutting unit 700 pushes the straw segments from the first discharge hood 131 into the second discharge hood 132, where the straw segments are crushed by the hammer cutting unit 800.

[0034] Further, please refer to Figure 11The cutting unit 700 includes a first rotating shaft 710 rotatably mounted inside the housing 100, a mounting bracket 720 fixed on the first rotating shaft 710, and a plurality of cutting pieces 730 arranged circumferentially on the mounting bracket 720. Please see Figure 12 The cutting component 730 includes a plate 731 fixed on the mounting bracket 720. One side of the plate 731 is provided with a blade 732 adapted to the connecting plate 133, and the other side of the plate 731 is provided with a rake tooth 733. The connecting plate 133 is provided with a tooth groove 134 corresponding to the rake tooth 733. Specifically, the first rotating shaft 710 drives the cutting component 730 on the mounting frame 720 to rotate, which can cut the straw into segments. When the straw enters the first discharge hood 131 through the guide channel, the straw is laid flat on the connecting plate 133. When the blade 732 passes through the connecting plate 133, the straw is cut into segments by the shearing action between the blade 732 and the end of the connecting plate 133. Then, the rake teeth 733 pass through the tooth groove 134 and push the straw segments that fall into the first discharge hood 131 circumferentially toward the second discharge hood 132 to avoid the accumulation of straw segments in the first discharge hood 131.

[0035] It should be noted that the blade 732 and the end of the connecting plate 133 form a dynamic shearing pair, which efficiently cuts the straw laid flat on the connecting plate 133 under the drive of the first rotating shaft 710; the rake teeth 733 and the tooth groove 134 precisely mesh, and after cutting, the straw segments are immediately circumferentially moved to the second discharge hood 132, completing the cutting and discharge simultaneously, fundamentally avoiding the accumulation of straw segments in the first discharge hood 131; The hard contact between the blade 732 and the connecting plate 133 achieves instantaneous cutting, ensuring a smooth cut. When cutting hard knots or foreign objects, the plate 731 can slightly deflect elastically to buffer the impact and protect the blade 732, reducing the risk of chipping. The rake teeth 733 generate a centrifugal projection effect as the mounting frame 720 rotates at high speed, actively throwing the straw segments towards the second discharge hood 132. The groove 134 provides an interference-free passage path for the rake teeth 733, while restricting the straw segments from rolling back, forming a one-way flow channel.

[0036] Furthermore, please refer to Figure 11 The hammer cutting unit 800 includes a second rotating shaft 810 rotatably mounted inside the housing 100. A plurality of partition disks 820 are axially arranged on the second rotating shaft 810. A plurality of mounting shafts 830 are circumferentially fixed between adjacent partition disks 820. A plurality of hammer blades 840 are rotatably mounted on the mounting shafts 830. Specifically, the second rotating shaft 810 drives each mounting shaft 830 to rotate circumferentially. By continuously changing the rotation speed of the second rotating shaft 810, the centrifugal force on the hammer slice 840 on the mounting shaft 830 changes continuously. This allows the hammer slice 840 to rotate circumferentially relative to the second rotating shaft 810 while also rotating circumferentially around the corresponding mounting shaft 830. The irregular movement of the hammer slice 840 is used to hammer and cut the straw segments.

[0037] It should be noted that by actively adjusting the rotation speed of the second rotating shaft 810, the centrifugal force on the hammer blade 840 changes periodically; the hammer blade 840 simultaneously generates "revolution" (rotating around the second rotating shaft 810) and "rotation" (rotating around the mounting shaft 830), forming an irregular three-dimensional motion trajectory, breaking through the single striking mode of traditional fixed-axis hammer blades, and effectively improving the all-round crushing effect of straw segments through multi-angle and variable vector hammering and cutting; Under high centrifugal force, the hammer blade 840 extends outward significantly, applying high-intensity hammering to the straw and breaking up coarse and hard nodules; under low centrifugal force, the hammer blade 840 partially swings back, flexibly cutting the fragments to avoid over-crushing; the superposition of the rotation and revolution of the hammer blade 840 generates high-frequency micro-displacement, preventing straw fibers from entangled in the mounting shaft 830; the oscillation of the hammer blade 840 during speed changes creates a periodic swinging effect, actively detaching adhering debris, effectively inhibiting material adhesion and shaft jamming, and maintaining the long-term unobstructed flow of the crushing chamber.

[0038] Additionally, please see Figure 1 and Figure 2 A second motor 850 is installed below the housing 100. A fourth transmission belt 860 is connected between the second motor 850 and the second rotating shaft 810. A fifth transmission belt 870 is connected between the second rotating shaft 810 and the first rotating shaft 710. The second rotating shaft 810 can drive the cutting unit 700 and the hammer cutting unit 800 to move synchronously.

[0039] The specific embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A straw hammer-chopping and pulverizing device, characterized in that, include: The housing (100) has a cover (110) on its top, and the two ends of the cover (110) are respectively provided with a feed bin (120) and a discharge bin (130). A feeding unit (200) is provided inside the feeding bin (120) for conveying straw into the housing (100); The pushing unit (300) is located above the feeding unit (200) and includes a slide rod (310) and a sleeve plate (320) rotatably mounted on the slide rod (310). A counterweight plate (330) is installed at the lower end of the sleeve plate (320). A transmission unit (400) is disposed within a housing (100) and includes a transmission shaft (410) rotatably mounted on the inner wall of the housing (100) and a circulation slide (430) fixed to the inner wall of the housing (100). The slide rod (310) is slidably embedded in the circulation slide (430). A crank (420) is fixedly connected to the transmission shaft (410). A connecting rod journal (470) is fixed to one end of the crank (420) away from the transmission shaft (410). A connecting rod (440) is hinged between the connecting rod journal (470) and the slide rod (310). A guiding unit (500) is provided at the output end of the feeding unit (200) and is used to guide the straw on the feeding unit (200) into the housing (100); The extrusion unit (600) is movably disposed directly above the conveying unit (500) and adapted to the conveying unit (500); The feeding unit (200) includes two sets of conveying rollers (210) rotatably mounted inside the housing (100), and a conveyor belt (220) is connected between the two sets of conveying rollers (210). A first motor (230) is installed at the bottom of the housing (100), and a first transmission belt (240) is connected between the first motor (230) and one of the sets of conveying rollers (210). The circulating chute (430) includes an ascending chute (431), a descending chute (432), a pushing chute (433), and a transition chute (434) connected end to end. The transition chute (434) is located on the side closer to the guiding unit (500). The height of the ascending chute (431) gradually increases at the end away from the transition chute (434). The pushing chute (433) is parallel to the conveying direction of the feeding unit (200). A one-way gate (435) is rotatably installed at the connection between the pusher slide (433) and the riser slide (431), and a limit block (436) adapted to the one-way gate (435) is provided on the top of the pusher slide (433).

2. The straw hammer-chopping and pulverizing device according to claim 1, characterized in that, The connecting rod (440) includes a first rod body (441) hinged to the connecting rod journal (470) and a second rod body (442) hinged to the slide rod (310). A rod sleeve (443) is slidably sleeved at one end of the first rod body (441) and the second rod body (442) that are close to each other. A first spring (444) is provided inside the rod sleeve (443) that abuts against the first rod body (441) and the second rod body (442).

3. The straw hammer-chopping and pulverizing device according to claim 1, characterized in that, The guiding unit (500) includes a guiding roller (510) rotatably mounted in the housing (100), the guiding roller (510) and the conveying roller (210) being connected by a second transmission belt (250), and the transmission shaft (410) and the guiding roller (510) being connected by a third transmission belt (460).

4. The straw hammer-chopping and pulverizing device according to claim 3, characterized in that, The extrusion unit (600) includes two sets of lifting guide rods (610) that are vertically slidably mounted on the cover (110). A push block (620) is provided at the lower end of the lifting guide rod (610). A second spring (630) is provided between the push block (620) and the cover (110). A connecting rod (640) is fixedly connected between the two push blocks (620). An extrusion roller (650) is rotatably mounted on the connecting rod (640). A cam (450) adapted to the push block (620) is provided on the transmission shaft (410). The extrusion roller (650) is provided with a plurality of annular protrusions (660) axially, and the guide roller (510) is provided with a plurality of annular grooves (520) that are adapted to the annular protrusions (660).

5. The straw hammer-chopping and pulverizing device according to claim 1, characterized in that, The discharge hopper (130) includes a first discharge cover (131) adapted to the cutting unit (700) and a second discharge cover (132) adapted to the hammer cutting unit (800). The first discharge cover (131) has a connecting plate (133) on the side facing the conveying unit (500).

6. The straw hammer-chopping and pulverizing device according to claim 5, characterized in that, The cutting unit (700) includes a first rotating shaft (710) rotatably mounted inside the housing (100), and a mounting bracket (720) is fixed on the first rotating shaft (710). The mounting bracket (720) is circumferentially provided with a plurality of cutting parts (730). The cutting component (730) includes a plate (731) fixed on the mounting bracket (720). One side of the plate (731) is provided with a blade (732) adapted to the connecting plate (133), and the other side of the plate (731) is provided with a rake tooth (733). The connecting plate (133) is provided with a tooth groove (134) corresponding to the rake tooth (733).

7. The straw hammer-chopping and pulverizing device according to claim 5, characterized in that, The hammer cutting unit (800) includes a second rotating shaft (810) rotatably mounted in the housing (100). A plurality of partition disks (820) are axially arranged on the second rotating shaft (810). A plurality of mounting shafts (830) are circumferentially fixed between adjacent partition disks (820). A plurality of hammer blades (840) are rotatably mounted on the mounting shafts (830).

Images