Straw rubbing and cutting integrated rubbing device
The integrated straw shredding and shredding device solves the problem of poor shredding effect of existing straw shredding equipment by using end cutters, spiral conveying, and rubbing rib separation, thereby improving the shredding rate and utilization rate. It is suitable for multiple application scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU UNIV
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-26
AI Technical Summary
Existing straw shredding equipment suffers from poor shredding effect, low shredding rate, large size, and complex structure, making it difficult to apply in various scenarios.
Design an integrated straw shredding and crushing device. The device cuts the straw with an end cutter, conveys and crushes it with a spiral conveyor blade, and combines a peeling wall blade, a rubbing rib, and a splitting serrated blade to achieve the separation and crushing of the straw's outer layer, forming a uniform filamentous material.
It improves the filamentation rate and utilization rate of straw, achieves uniform filamentation of straw, and has a compact structure, making it suitable for multiple application scenarios.
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Figure CN224402283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straw processing technology, and in particular to an integrated straw shredding and crushing device. Background Technology
[0002] Straw is widely used in industry, animal husbandry, and agriculture. For example, it's used in the production of composite boards in industry and in the daily feed of ruminants in animal husbandry. Furthermore, returning straw to the field in agriculture can prevent soil erosion by wind and water. However, the primary step in applying straw to various industries is to uniformly shred it to meet the common requirements of these applications. Currently, hammer mill shredders are the main type of straw shredder. While continuous improvements have increased the shredding rate of crushed straw to 50%–80%, the uneven shredding scale after impact by the hammers does not significantly improve the uniformity of shredding or the utilization rate of shredded straw. Moreover, most current shredders are large, occupy a lot of space, and have complex structures, making them unsuitable for straw shredding in various specific scenarios.
[0003] Therefore, scholars both domestically and internationally have conducted extensive research on straw filamentization methods from different perspectives. Currently, some researchers have found that first crushing the straw to separate the cortex and pith can effectively improve the processing efficiency of straw shredders and increase the filamentization rate and utilization rate. Among existing technologies, a patent with publication number CN111937606A, entitled "An Adjustable Shredder for Forage," is disclosed. This patent uses a cylindrical shredder and a rotating hammer shredding mechanism to crush and shred forage. During operation, the chopped forage is fed into the shredder's inlet, but this only achieves rubbing, resulting in poor filamentization. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] In view of the problems existing in the above and / or existing integrated straw shredding and crushing devices, this utility model is proposed.
[0006] Therefore, the problem that this utility model aims to solve is that it can only knead materials and the kneading effect is not good. This utility model can sequentially realize the cutting, rolling and kneading of straw and conveying, and the kneading effect is good.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an integrated straw shredding and crushing device, comprising,
[0008] Main frame;
[0009] The shearing and kneading assembly includes a kneading drum fixedly connected to the main frame. The head of the kneading drum has a feed inlet. A main shaft is rotatably connected inside the kneading drum. A transmission sleeve is fixedly connected to the main shaft. Several peeling wall blades are arranged around the outer periphery of the transmission sleeve. Spiral conveying blades are provided around the outer periphery of the peeling wall blades. An end blade is fixedly connected to the upper end of the peeling wall blades and is located at the head end of the spiral conveying blades. A discharge port is opened on the outer periphery of the kneading drum at the end away from the feed inlet.
[0010] The discharge baffle is connected to the outside of the kneading drum and can block the discharge port.
[0011] As a preferred embodiment of the integrated straw shredding and kneading device of this utility model, wherein: a rotating shaft is rotatably connected to the main shaft at the end of the bark-cutting blade, a transmission shaft has a connecting hole, the main shaft passes upward through the connecting hole and is connected to the transmission sleeve, a connecting sleeve is fixedly connected to the rotating shaft, and a number of kneading ribs are arranged at intervals on the outer periphery of the connecting sleeve.
[0012] As a preferred embodiment of the integrated straw shredding and kneading device of this utility model, a number of kneading ribs are arranged on the inner wall of the kneading cylinder at the end of the bark-cutting blade, with two adjacent kneading ribs arranged close together, and the outer side of the kneading ribs can rotate against the outer side of the kneading ribs.
[0013] As a preferred embodiment of the integrated straw shredding and kneading device of this utility model, a plurality of connecting seats are arranged at intervals in the axial direction on the outer periphery of the connecting sleeve between two adjacent kneading strips, and a serrated cutting knife is connected to the connecting seat.
[0014] As a preferred embodiment of the integrated straw shredding and kneading device of this utility model, the outer side of the kneading cylinder is fixedly connected to a discharge hopper, and a sliding groove is opened at one end of the discharge hopper relative to the kneading cylinder. The outer side of the discharge baffle can be slidably connected to the discharge hopper through the outer side of the sliding groove, and the inner side of the discharge baffle can slide along the outer side of the kneading cylinder.
[0015] As a preferred embodiment of the integrated straw shredding and kneading device of this utility model, the upper side of the kneading cylinder is fixedly connected to a feed hopper with an upward opening, the opening covering the feed inlet.
[0016] As a preferred embodiment of the integrated straw shredding and shredding device of this utility model, wherein: any two serrated cutting blades spaced apart in the axial direction are staggered in the circumferential direction.
[0017] As a preferred embodiment of the integrated straw shredding and kneading device of this utility model, it further includes a transmission assembly, which includes a transmission motor fixedly connected to the main frame, an output shaft connected to the transmission motor, a transmission box fixedly connected to the main frame, a first transmission shaft and a second transmission shaft connected to the transmission box, a first drive wheel connected to the first transmission shaft, a second drive wheel connected to the second transmission shaft, a first driven wheel connected to one end of the main shaft extending out of the kneading cylinder, a second driven wheel connected to a connecting sleeve extending out of the kneading cylinder, the first drive wheel being connected to the first driven wheel via a first transmission belt, and the second drive wheel being connected to the second driven wheel via a second transmission belt.
[0018] The beneficial effects of this utility model are as follows: First, the fed straw is cut by the end cutter. The cut straw enters the conveying section and is conveyed downward by the spiral conveying blades. During the conveying process, the straw is shredded and compressed by the axially variable diameter cutting blade. Finally, the combination of the kneading ribs and kneading tendons, as well as the combined setting of the cutting saw blades, separates the pith and husk of the crushed straw, kneads and disperses it, and shears and disperses it into filamentous material. When it is time to discharge, the discharge baffle is pulled outward, and the shredded straw is pushed by the kneading tendons through the discharge port into the discharge hopper and discharged, thus achieving uniform shredding of the straw. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0020] Figure 1 This is a front view of an integrated straw shearing, crushing, and shredding device.
[0021] Figure 2 This is a three-dimensional structural diagram of an integrated straw shredding and crushing device.
[0022] Figure 3 This is a top view of the connecting sleeve, kneading ribs, and the kneading ribs connected together in the integrated straw shredding and kneading device.
[0023] Figure 4 This is a front view of the connecting sleeve, kneading ribs, kneading ribs, and rotating shaft connected together in an integrated straw shredding and kneading device.
[0024] Figure 5 A three-dimensional structural diagram of the kneading drum in an integrated straw shredding and kneading device.
[0025] Figure 6This is a three-dimensional structural diagram of the integrated straw shearing, crushing, and shredding device, showing the connection between the transmission sleeve, spiral transmission blades, and bark-cutting blades.
[0026] In the diagram: 100 Main frame, 200 Transmission assembly, 201 Transmission motor, 202 Output shaft, 203 Transmission box, 204 First transmission shaft, 206 Second driving wheel, 207 First transmission belt, 208 Second transmission belt, 209 First driven wheel, 210 Second driven wheel, 300 Shearing and kneading assembly, 301 Kneading drum, 3011 Feed inlet, 3012 Kneading ribs, 3013 Discharge outlet, 302 Main shaft, 303 Rotating shaft, 304 Transmission sleeve, 305 Spiral transmission blade, 306 Peeling wall knife, 307 Cutting serrated knife, 308 Kneading ribs, 309 Connecting seat, 310 End knife, 311 Connecting sleeve, 400 Discharge hopper, 500 Feed hopper, 501 Opening, 600 Discharge baffle. Detailed Implementation
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0030] Example 1: Refer to Figure 1 This is the first embodiment of the present invention, which provides an integrated straw cutting, shredding and shredding device that can cut, shred and transport straw.
[0031] An integrated straw shearing, milling, and shredding device includes a main frame 100. A shearing, milling, and shredding assembly 300 is connected to the main frame 100 for cutting straw, shredding and shredding the cut straw, and conveying the straw. The shearing, milling, and shredding assembly 300 includes a shredding cylinder 301 fixedly connected to the main frame 100. The head of the shredding cylinder 301 has a feed inlet 3011. A feed hopper 500 with an upward-facing opening 501 is fixedly connected to the upper side of the shredding cylinder 301, covering the feed inlet 3011. A main shaft 302 is rotatably connected inside the shredding cylinder 301. A transmission sleeve 304 is fixedly connected to the main shaft 302. The transmission sleeve 304 is conical, and its outer diameter gradually increases from the feed inlet 3011 towards the end of the shaving blade 306. A plurality of peeling blades 306 are arranged on the outer periphery of the transmission sleeve 304. Spiral conveying blades 305 are provided on the outer periphery of the peeling blades 306. An end blade 310 is fixedly connected to the upper end of the peeling blades 306 and is provided at the head end of the spiral conveying blades 305. A discharge port 3013 is opened on the outer periphery of the end of the kneading cylinder 301 away from the feed port 3011. A discharge baffle 600 that can block the discharge port 3013 is connected to the outer side of the kneading cylinder 301. A discharge hopper 400 is fixedly connected to the outer side of the kneading cylinder 301. A sliding groove is opened at one end of the discharge hopper 400 relative to the kneading cylinder 301. The outer side of the discharge baffle 600 can be slidably connected to the discharge hopper 400 through the outer side of the sliding groove. The inner side of the discharge baffle 600 can slide along the outer side of the kneading cylinder 301.
[0032] During operation, the main shaft 302 rotates, which drives the spiral conveyor blades 305, end cutter 310, and several bark-cutting blades 306 to rotate via the transmission sleeve 304. The straw is put into the feed hopper 500. The end cutter 310 at the head first cuts the straw into segments. The cut straw is then conveyed downwards by the spiral conveyor blades 305. The cut straw is rolled, rolled, and cut into fibers by the rolling and rolling area formed by the inner side of the shredding drum and the conical transmission sleeve 304. The area of the rolling and rolling area gradually decreases from the front end to the rear end, so that each straw in the group of cut straw segments can be rolled, rolled, and cut into fibers evenly. During the rolling and rolling process, the bark-cutting blades cut the straw along the axial direction. The pre-treated straw enters the subsequent processing area under the action of the spiral conveyor blades 305. After processing, the discharge baffle 600 is loosened and pulled out, exposing the discharge port 3013. The processed material enters the discharge hopper 400.
[0033] Specifically, it also includes a transmission assembly 200, which includes a transmission motor 201 fixedly connected to the main frame 100. The transmission motor 201 is connected to an output shaft 202. The main frame 100 is fixedly connected to a transmission box 203. On the transmission box 203, a first drive wheel is connected to the first transmission shaft 204. The first drive wheel is connected to a first driven wheel 209 via a first transmission belt 207. The first driven wheel 209 is connected to the main shaft 302 extending to the left of the kneading drum 301.
[0034] The power transmission between the output shaft 202 and the first drive shaft 204 is provided by the transmission structure inside the transmission box 203 (which is prior art and not an improvement of this application). During operation, the transmission motor 201 is activated, the output shaft 202 rotates, which drives the first drive shaft 204 to rotate. The first drive shaft 204 drives the first driving wheel to rotate. The first driving wheel drives the first driven wheel 209 to rotate via the first transmission belt 207. The first driven wheel 209 drives the main shaft 302 to rotate, thereby realizing the active rotation of the main shaft 302.
[0035] Example 2: Refer to Figures 1-5 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0036] Specifically, a rotating shaft 303 is rotatably connected to the main shaft 302 at the end of the peeling blade 306. A connecting hole is opened at the center of the rotating shaft 303. The main shaft 302 passes upward through the connecting hole and connects to the transmission sleeve 304. A connecting sleeve 311 is fixedly connected to the rotating shaft 303. A first driven wheel 209 is connected to one end of the main shaft 302 extending out of the kneading drum 301. A second transmission shaft is also connected to the transmission box 203. A second driving wheel 206 is connected to the second transmission shaft. A second driven wheel 210 is connected to the connecting sleeve 311 extending out of the kneading drum 301. The second driving wheel 206 is connected to the second driven wheel 210 via a second transmission belt 208. The connecting sleeve 311 is arranged with... The device has several kneading ribs 308 spaced apart. Several kneading ribs 3012 are arranged on the inner wall of the kneading cylinder 301 at the end of the peeling blade 306. Two adjacent kneading ribs 3012 are arranged close together. The outer side of the kneading ribs 308 can rotate against the outer side of the kneading ribs 3012. Several connecting seats 309 spaced apart in the axial direction are arranged on the outer periphery of the connecting sleeve 311 between two adjacent kneading ribs 308. A slicing serrated blade 307 is connected to the connecting seat 309. Any two slicing serrated blades 307 spaced apart in the axial direction are staggered in the circumferential direction. Preferably, the several slicing serrated blades 307 between two adjacent kneading ribs 308 are arranged in a spiral.
[0037] After preliminary processing, the straw enters the kneading cylinder 301 below the transmission sleeve 304 under the action of the spiral conveyor blades 305. The straw collides continuously in the kneading space formed by the cutting saw blades 307 and the kneading cylinder 301, and the outer skin of the straw is peeled off with the help of the cutting saw blades 307. The straw that is not completely filamentized is further kneaded into filaments by the cooperation of the kneading ribs 308 and the kneading spurs 3012. When the discharge baffle 600 moves out and the discharge port 3013 is opened, the filamentized material is discharged from the discharge port 3013 into the discharge hopper 400 under the push of the kneading ribs 308.
[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A straw shredding and shredding device integrating shearing, shredding, and shredding, characterized in that: include, Main frame; The shearing and kneading assembly includes a kneading drum fixedly connected to the main frame. The head of the kneading drum has a feed inlet. A main shaft is rotatably connected inside the kneading drum. A transmission sleeve is fixedly connected to the main shaft. Several peeling wall blades are arranged around the outer periphery of the transmission sleeve. Spiral conveying blades are provided around the outer periphery of the peeling wall blades. An end blade is fixedly connected to the upper end of the peeling wall blades and is located at the head end of the spiral conveying blades. A discharge port is opened on the outer periphery of the kneading drum at the end away from the feed inlet. The discharge baffle is connected to the outside of the kneading drum and can block the discharge port.
2. The integrated straw shearing, milling, and shredding device as described in claim 1, characterized in that: A rotating shaft is rotatably connected to the main shaft at the end of the shaving blade. The transmission shaft has a connecting hole. The main shaft passes through the connecting hole and connects to the transmission sleeve. A connecting sleeve is fixedly connected to the rotating shaft. Several kneading ribs are arranged at intervals on the outer periphery of the connecting sleeve.
3. The integrated straw shearing, milling, and shredding device as described in claim 2, characterized in that: The inner wall of the kneading cylinder at the end of the peeling knife is provided with several kneading ribs arranged close together, and the outer side of the kneading ribs can rotate against the outer side of the kneading ribs.
4. The integrated straw shredding and pulverizing device as described in claim 2 or 3, characterized in that: Several connecting seats are arranged at intervals in the axial direction on the outer periphery of the connecting sleeve between two adjacent kneading ribs, and a slitting saw blade is connected to the connecting seat.
5. The integrated straw shearing, milling, and shredding device as described in any one of claims 1 to 3, characterized in that: A discharge hopper is fixedly connected to the outside of the kneading drum. A sliding groove is opened at one end of the discharge hopper relative to the kneading drum. The outer side of the discharge baffle can be slidably connected to the discharge hopper through the outer side of the sliding groove, and the inner side of the discharge baffle can slide along the outer side of the kneading drum.
6. The integrated straw shearing, milling, and shredding device as described in any one of claims 1 to 3, characterized in that: The upper side of the kneading drum is fixedly connected to a feed hopper with an upward opening that covers the feed inlet.
7. The integrated straw shearing, milling, and shredding device as described in claim 4, characterized in that: Two cleaving saw blades spaced apart in the axial direction are staggered in the circumferential direction.
8. The integrated straw shearing, milling, and shredding device as described in any one of claims 1 to 3, characterized in that: It also includes a transmission assembly, which includes a transmission motor fixedly connected to the main frame, an output shaft connected to the transmission motor, a transmission box fixedly connected to the main frame, a first transmission shaft and a second transmission shaft connected to the transmission box, a first drive wheel connected to the first transmission shaft, a second drive wheel connected to the second transmission shaft, a first driven wheel connected to one end of the main shaft extending out of the kneading drum, and a second driven wheel connected to a connecting sleeve extending out of the kneading drum. The first drive wheel is connected to the first driven wheel via a first transmission belt, and the second drive wheel is connected to the second driven wheel via a second transmission belt.