Straw returning-to-field integrated equipment and using method thereof
By designing a transmission component to drive the scraper to rotate and clean small pieces of straw, and by using an arc-shaped water baffle and an electromagnet to control the direction of water spraying, the problem of nozzle clogging in the straw crushing and returning device was solved, achieving long-term normal operation and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENYANG AGRI UNIV
- Filing Date
- 2026-03-09
- Publication Date
- 2026-05-05
AI Technical Summary
In existing straw crushing and returning devices, the crushed straw pieces tend to adhere to the connecting pipes and nozzles after inertial flight, causing nozzle blockage and affecting the normal operation of the device.
Design a straw return-to-field integrated device, including a transmission component that drives a scraper to rotate, scraping off small pieces of straw attached to the outer surface of the water outlet pipe, and cleaning blockages through water spray holes. Combined with an arc-shaped water baffle and an electromagnet to control the direction of water spray, it achieves cleaning and dust suppression functions.
This effectively avoids clogging of the water spray holes, ensuring that the device can still work normally after long-term use, and preventing environmental pollution and harm to human health.
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Figure CN121970594A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of straw crushing and returning to the field technology, specifically to an integrated straw returning equipment and its usage method. Background Technology
[0002] Returning straw to the field increases soil organic matter content by supplementing organic materials, promoting the formation of soil aggregates, making the soil loose and porous, reducing bulk density, and coordinating water, fertilizer, air, and heat. Simultaneously, the decomposition of straw continuously releases nutrients and stimulates microbial activity, accelerating nutrient cycling, thereby improving soil structure, enriching soil fertility, and promoting crop root development. During the straw return process, a crushing device is needed to crush the straw into small pieces, and a water spraying device is used to spray water onto these small pieces of straw and soil, thus suppressing dust, preventing environmental pollution, and avoiding harm to human health. For example, Chinese utility model patent application number "CN202420711347.6" provides a novel auxiliary device for a straw crushing and returning machine. In this device, a crushing mechanism is used to crush the straw, and a water outlet pipe delivers water to a connecting pipe and a spray head to wet the crushed straw pieces and soil.
[0003] The drawback of this device is that after the shredded straw is wetted, it continues to fly a distance in the air due to inertia, thus adhering to the connecting pipe and the nozzle. With prolonged use, more and more small pieces of straw accumulate on the connecting pipe and the nozzle, eventually clogging the nozzle orifice and causing the device to malfunction. Summary of the Invention
[0004] The purpose of this invention is to provide an integrated straw return device and its usage method. The transmission component can drive the scraper to rotate together, and the scraper can clean off the small pieces of straw attached to the outer surface of the water outlet pipe, avoiding clogging of the dust suppression spray holes and ensuring that the invention can still work normally after long-term use.
[0005] To achieve the above objectives, the present invention provides the following technical solution: In the first technical solution, a straw returning equipment includes: a frame, the frame including a support plate; a crushing component disposed at the front end of the bottom surface of the support plate; a baffle disposed at the rear end of the bottom surface of the support plate; a water outlet pipe disposed between the crushing component and the baffle, the side wall of the water outlet pipe near the crushing component having a plurality of dust suppression spray holes; a cleaning component, the cleaning component including a transmission component and a scraper, the transmission component being disposed at the bottom of the water outlet pipe and rotatably connected to the water outlet pipe, the scraper abutting against the outer surface of the water outlet pipe, the bottom of the scraper being fixedly connected to the transmission component; and a water supply component, the water outlet pipe being connected to the water outlet end of the water supply component.
[0006] In the first technical solution, preferably, the baffle is an arc-shaped plate, the concave surface of the baffle is located on the side close to the crushing component, and the lengths of both the bearing plate and the baffle are greater than the length of the crushing component.
[0007] In the first technical solution, preferably, it further includes: a positioning component, wherein the bearing plate is provided with an arc-shaped guide groove at one end near the baffle, the top of the water outlet pipe extends through the arc-shaped guide groove to the top of the bearing plate and is connected to the output end of the positioning component; two water spray pipes are respectively provided at both ends of the baffle, the positions of the water spray pipes correspond to those of the transmission component, and the water spray pipes are connected to the water outlet end of the water supply component.
[0008] In the first technical solution, preferably, there is a gap between the water outlet pipe and the baffle, and a plurality of cleaning spray holes are provided on the side wall of the water outlet pipe near the baffle.
[0009] In the first technical solution, preferably, it further includes a water spray switching assembly, which includes: an arc-shaped baffle plate disposed inside the water outlet pipe and capable of sliding along the inner wall of the water outlet pipe; the top of the transmission member extending into the water outlet pipe and fixedly connected to the bottom of the arc-shaped baffle plate; when the arc-shaped baffle plate moves to the side closer to the baffle, the arc-shaped baffle plate can cover all the cleaning water spray holes; when the arc-shaped baffle plate moves to the side closer to the crushing component, the arc-shaped baffle plate can cover all the dust suppression water spray holes; two arc-shaped metal plates, both disposed above the support plate and both fixedly connected to the top of the arc-shaped baffle plate; the two metal plates have different heights; the dust suppression water spray holes and the cleaning water spray holes are both disposed below the support plate; and two electromagnets, respectively fixedly disposed on both sides of the outer surface of the water outlet pipe, with the positions of the two electromagnets corresponding to the positions of the two arc-shaped metal plates.
[0010] In the first technical solution, preferably, the transmission component includes: a rotating shaft, the middle part of which is rotatably connected to the center of the bottom surface of the water outlet pipe; a drive disc, disposed inside the water outlet pipe, the top of the rotating shaft and the bottom of the arc-shaped baffle plate being fixedly connected to the drive disc; and a plurality of water receiving bowls, all fixedly disposed at the bottom of the rotating shaft and radially distributed, each of the water receiving bowls having a scraper on its top.
[0011] In the first technical solution, preferably, in the width extension direction of the arc-shaped water baffle, both ends of the arc-shaped water baffle are provided with cutting bevels, and two adjacent cutting bevels together form a V-shaped structure.
[0012] In the second technical solution, a method of using an integrated straw returning equipment, employing the integrated straw returning equipment as described in the first technical solution, includes the following steps: Step 1: Moving the vehicle frame across the field; Step 2: The crushing component operates, crushing the straw into small pieces and throwing them towards the baffle; Step 3: The water supply component operates, sending water into the water outlet pipe, where the water sprays out from the dust suppression spray holes, wetting the crushed straw and the field to suppress dust, and the wet straw pieces fall downwards into the field after colliding with the baffle; Step 4: The adjusting component... Step 5: The water outlet pipe is moved to one end of the baffle. The water supply component sends water into the spray pipe near the transmission component. The water in the spray pipe sprays towards the transmission component. The transmission component rotates after being impacted by the water, and drives the scraper to rotate as well. The scraper scrapes off the small pieces of straw attached to the outer surface of the water outlet pipe. Step 6: The positioning component drives the water outlet pipe to move back and forth between the two ends of the baffle. The water supply component sends water into the water outlet pipe. The water in the water outlet pipe sprays out from the cleaning spray hole, washing away the small pieces of straw attached to the side wall of the baffle.
[0013] Compared with the prior art, the beneficial effects of the present invention are: (i) When the present invention is in use, the transmission component can drive the scraper to rotate together. The scraper can clean off the small pieces of straw attached to the outer surface of the water outlet pipe, avoid clogging of the dust suppression spray hole, and ensure that the present invention can still work normally after long-term use.
[0014] (ii) When the present invention is in use, after the water outlet pipe moves to one end of the arc-shaped guide groove and the outer surface is cleaned, the adjustment component works. The adjustment motor drives the water outlet pipe to move back and forth between the two ends of the baffle through the adjustment slant rod. The first water pump sends water into the water outlet pipe, and the water in the water outlet pipe sprays out from the cleaning spray hole to wash away the small pieces of straw attached to the side wall of the baffle.
[0015] (III) In this invention, the water spray switching assembly includes an arc-shaped baffle plate, two arc-shaped metal plates, and two electromagnets. When the arc-shaped baffle plate moves to the side closer to the baffle plate, the cleaning water spray holes are blocked, and only the dust suppression water spray holes can spray water outward. When the arc-shaped baffle plate moves to the side closer to the crushing assembly, the dust suppression water spray holes are blocked, and only the cleaning water spray holes can spray water outward. Attached Figure Description
[0016] Figure 1 This is an isometric view of the invention when the cleaning components are not in operation. Figure 2 This is a side sectional view of the present invention; Figure 3 An isometric view of the invention when the cleaning components are in operation; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is an axonometric view of the vehicle frame in this invention; Figure 6 This is an isometric view of the crushing component in this invention; Figure 7 This is an isometric view of the baffle and water spray pipe in this invention; Figure 8 This is an isometric view of the water outlet pipe and the adjustment assembly in this invention; Figure 9 This is an isometric view of the cleaning component and the water spray switching component in this invention; Figure 10 for Figure 9 Axonometric view at point B; Figure 11 for Figure 9 Axonometric view at point C; Figure 12 This is an isometric view of the water supply component in this invention.
[0017] The reference numerals in the figures include: 1-Frame, 11-Bearing plate, 111-Arc-shaped guide groove, 12-Bearing frame, 13-Handle, 14-Wheel, 2-Crushing assembly, 21-Guide frame, 22-Drive motor, 23-Connecting shaft, 24-Crushing blade, 3-Baffle, 4-Water outlet pipe, 41-Dust suppression spray hole, 42-Cleaning spray hole, 5-Cleaning assembly, 51-Transmission component, 511-Rotating shaft, 512-Drive disc, 513-Water receiving bowl, 52-Scraper, 6-Water supply assembly, 61-Water tank, 62-First water pump, 63-Second water pump, 7-Adjustment assembly, 71-Adjustment motor, 72-Adjustment slant bar, 8-Water spray pipe, 9-Water spray switching assembly, 91-Arc-shaped baffle, 911-Cutting bevel, 92-Arc-shaped metal plate, 93-Electromagnet. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Example 1
[0020] Please see Figure 1-12This invention provides a technical solution: an integrated straw returning device, comprising a frame 1, a crushing component 2, a baffle 3, a water outlet pipe 4, a cleaning component 5, and a water supply component 6. In this embodiment, the frame 1 includes a support plate 11, a support frame 12, a handle 13, and wheels 14. The crushing component 2 includes a guide frame 21, two drive motors 22, two connecting shafts 23, and several crushing blades 24. The side wall of the water outlet pipe 4 is provided with several dust suppression spray holes 41. The cleaning component 5 includes a transmission component 51 and a scraper 52. The water supply component 6 includes a water tank 61 and a first water pump 62. In use, the operator can move the frame 1 across the field using the handle 13 and wheels 14. The crushing component 2 then operates; the guide frame 21 guides the straw to the position of the crushing blades 24. The two drive motors 22 respectively drive the two connecting shafts 23 to rotate, thereby driving the several crushing blades 24 to rotate, crushing the straw into small pieces and throwing them towards the baffle 3. Next, the water supply component 6 operates, with the first water pump 62 pumping water from the water tank 61 into the outlet pipe 4. Water from the outlet pipe 4 sprays out from the dust suppression spray holes 41, wetting the pulverized straw and the field, thus suppressing dust. The wet straw pieces collide with the baffle 3 and fall into the field. As more and more straw pieces adhere to the outer surface of the outlet pipe 4, the operator drives the transmission component 51 to rotate. The transmission component 51 drives the scraper 52 to rotate as well. The scraper 52 cleans away the straw pieces adhering to the outer surface of the outlet pipe 4, preventing the dust suppression spray holes 41 from clogging and ensuring that the invention continues to function normally even after prolonged use.
[0021] Example 2
[0022] Based on Example 1, please refer to Figure 1-8 and Figure 12The baffle 3 is an arc-shaped plate. Even if small pieces of straw collide with the middle of the baffle 3 and fly to both sides, the arc-shaped structure of the baffle 3 can still block the small pieces of straw, further preventing the small pieces of straw from polluting the environment and harming human health. The invention also includes an adjusting component 7 and two water spray pipes 8. The adjusting component 7 can move the water outlet pipe 4 and the cleaning component 5 together to a position close to the water spray pipe 8. The water supply component 6 can send water into the water spray pipe 8. After the water is sprayed out from the water spray pipe 8, it can drive the cleaning component 5 to rotate. In this embodiment, the support plate 11 is provided with an arc-shaped guide groove 111, and the middle part of the water outlet pipe 4 is located in the arc-shaped guide groove 111. The water supply component 6 also includes two second water pumps 63, which are respectively located on both sides of the water tank 61. The positioning assembly 7 includes a positioning motor 71 and a positioning lever 72. The two ends of the positioning lever 72 are connected to the water outlet pipe 4 and the output end of the positioning motor 71, respectively. Two spray pipes 8 are respectively located at both ends of the baffle 3. When it is necessary to clean the small sections on the side wall of the water outlet pipe 4, the positioning motor 71 operates, driving the positioning lever 72 to rotate, which in turn drives the water outlet pipe 4 to slide along the inner wall of the arc-shaped guide groove 111 until the water outlet pipe 4 moves to either end of the arc-shaped guide groove 111. Finally, the positioning motor 71 stops operating. At this time, the cleaning assembly 5 moves to the position corresponding to the spray pipe 8. Next, the second water pump 63 on the side near the water outlet pipe 4 operates, pumping water into the spray pipe 8 on the side near the water outlet pipe 4. The spray pipe 8 sprays water onto the transmission component 51, and the water flow drives the transmission component 51 to rotate, which in turn drives the scraper 52 to rotate, cleaning away the small sections of straw attached to the outer surface of the water outlet pipe 4. Since both the baffle 3 and the arc-shaped guide groove 111 are arc-shaped, the water sprayed from the water pipe 8 will be blocked by the guide frame 21 after passing through the transmission component 51. Therefore, the crushing blade 24 will not be wetted by water, thus extending the service life of the crushing component 2.
[0023] Example 3
[0024] Based on Example 2, please refer to Figure 1-8 and Figure 12 There is a gap between the water outlet pipe 4 and the baffle 3. Several cleaning spray holes 42 are provided on the side wall of the water outlet pipe 4 near the baffle 3. Since the wet straw pieces will not only adhere to the water outlet pipe 4, but also to the baffle 3, the baffle 3 needs to be cleaned regularly to prevent the straw pieces on the baffle 3 from obstructing the movement of the water outlet pipe 4. When the water outlet pipe 4 moves to one end of the arc-shaped guide groove 111 and the outer surface is cleaned, the adjustment component 7 works. The adjustment motor 71 drives the water outlet pipe 4 to move back and forth between the two ends of the baffle 3 through the adjustment inclined rod 72. The first water pump 62 sends water into the water outlet pipe 4, and the water in the water outlet pipe 4 is sprayed out from the cleaning spray holes 42 to wash away the straw pieces attached to the side wall of the baffle 3.
[0025] Example 4
[0026] Based on Example 3, please refer to Figure 1-12 The invention also includes a water spray switching component 9. During the straw return process, the water outlet pipe 4 remains stationary, the dust suppression spray hole 41 needs to spray water, while the cleaning spray hole 42 does not. During the cleaning baffle 3 process, the water outlet pipe 4 moves back and forth, the cleaning spray hole 42 needs to spray water, while the dust suppression spray hole 41 does not. Therefore, the water outlet pipe 4 needs to be able to control the direction of water spraying. The water spray switching component 9 includes an arc-shaped baffle plate 91, two arc-shaped metal plates 92, and two electromagnets 93. The arc-shaped baffle plate 91 is located inside the water outlet pipe 4 and is connected to the top of the transmission component 51. The two electromagnets 93 are not on the same side. When the arc-shaped baffle plate 91 moves to the side closer to the baffle 3, the cleaning spray hole 42 is blocked, and only the dust suppression spray hole 41 can spray water outward. When the arc-shaped baffle plate 91 moves to the side closer to the crushing component 2, the dust suppression spray hole 41 is blocked, and only the cleaning spray hole 42 can spray water outward.
[0027] Please see Figure 1-12 During the process of cleaning the small straw pieces on the outer wall of the water outlet pipe 4, neither of the two electromagnets 93 is working. At this time, the arc-shaped baffle 91 can rotate together with the transmission component 51, and drive the two arc-shaped metal plates 92 to rotate together. When straw needs to be returned to the field, the transmission component 51 drives the arc-shaped baffle 91 to rotate continuously, but the top electromagnet 93 is working. At this time, the top arc-shaped metal plate 92 is attracted, and the arc-shaped baffle 91 stays on the side near the baffle 3, and the cleaning spray hole 42 is blocked. When the baffle 3 needs to be cleaned, the transmission component 51 drives the arc-shaped baffle 91 to rotate continuously, but the bottom electromagnet 93 is working. At this time, the bottom arc-shaped metal plate 92 is attracted, and the arc-shaped baffle 91 stays on the side near the crushing component 2, and the dust suppression spray hole 41 is blocked.
[0028] Example 5
[0029] Based on Example 4, please refer to Figure 1-12 The transmission component 51 includes a rotating shaft 511, a drive disc 512, and several water collection bowls 513. The top of the rotating shaft 511 and the bottom of the arc-shaped baffle 91 are fixedly connected to the drive disc 512. Several water collection bowls 513 are fixedly installed at the bottom of the rotating shaft 511, and each water collection bowl 513 has a scraper 52 on its top. When the water outlet pipe 4 moves along the inner wall of the arc-shaped guide groove 111 to one end of the arc-shaped guide groove 111, the position of the water collection bowl 513 corresponds to the position of the water outlet of the spray pipe 8. When the spray pipe 8 sprays water outward, the water flow pushes the water collection bowl 513 to move, and the water collection bowl 513 drives the rotating shaft 511 to rotate, which in turn drives the drive disc 512, the arc-shaped baffle 91, and the scraper 52 to rotate. Since there are several scrapers 52, several scrapers 52 can slide along the outer surface of the water outlet pipe 4 at the same time, quickly cleaning away the small pieces of straw attached to the outer surface of the water outlet pipe 4.
[0030] Please see Figure 1-12 Along the width extension direction of the arc-shaped baffle 91, both ends of the arc-shaped baffle 91 are provided with cutting bevels 911, and two adjacent cutting bevels 911 together form a V-shaped structure. Therefore, during the rotation of the arc-shaped baffle 91, the water in the outlet pipe 4 can flow along the cutting bevels 911, reducing the resistance encountered by the arc-shaped baffle 91 during rotation.
[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A straw return-to-field integrated device, characterized in that, include: The vehicle frame includes a load-bearing plate; A crushing component is located at the front end of the bottom surface of the support plate; A baffle is provided at the rear end of the bottom surface of the bearing plate; A water outlet pipe is provided between the crushing component and the baffle, and a number of dust suppression spray holes are provided on the side wall of the water outlet pipe near the crushing component. A cleaning assembly, comprising a transmission component and a scraper, wherein the transmission component is disposed at the bottom of the water outlet pipe and is rotatably connected to the water outlet pipe, the scraper abuts against the outer surface of the water outlet pipe, and the bottom of the scraper is fixedly connected to the transmission component; A water supply assembly, wherein the water outlet pipe is connected to the water outlet end of the water supply assembly.
2. The straw returning equipment according to claim 1, characterized in that, The baffle is an arc-shaped plate, and the concave surface of the baffle is located on the side close to the crushing component. The lengths of both the bearing plate and the baffle are greater than the length of the crushing component.
3. The straw returning equipment according to claim 2, characterized in that, Also includes: The adjustment component has an arc-shaped guide groove at one end of the support plate near the baffle. The top of the water outlet pipe extends through the arc-shaped guide groove to the top of the support plate and is connected to the output end of the adjustment component. Two water spray pipes are respectively located at both ends of the baffle. The positions of the water spray pipes correspond to those of the transmission component, and the water spray pipes are connected to the outlet of the water supply assembly.
4. The straw returning equipment according to claim 3, characterized in that, There is a gap between the water outlet pipe and the baffle, and several cleaning spray holes are provided on the side wall of the water outlet pipe near the baffle.
5. The straw returning equipment according to claim 4, characterized in that, It also includes a water spray switching component, which includes: An arc-shaped baffle is disposed inside the water outlet pipe and can slide along the inner wall of the water outlet pipe. The top of the transmission component extends into the water outlet pipe and is fixedly connected to the bottom of the arc-shaped baffle. When the arc-shaped baffle moves to the side close to the baffle, the arc-shaped baffle can cover all the cleaning spray holes. When the arc-shaped baffle moves to the side close to the crushing component, the arc-shaped baffle can cover all the dust suppression spray holes. Two arc-shaped metal plates are both located above the support plate and are fixedly connected to the top of the arc-shaped water baffle. The two metal plates are at different heights. The dust suppression spray holes and the cleaning spray holes are both located below the support plate. Two electromagnets are fixedly installed on both sides of the outer surface of the water outlet pipe, and the positions of the two electromagnets correspond to the positions of the two arc-shaped metal plates.
6. The straw returning-to-field integrated equipment according to claim 5, characterized in that, The transmission component includes: A rotating shaft, the middle part of which is rotatably connected to the center of the bottom surface of the water outlet pipe; A drive disc is located inside the water outlet pipe, and the top of the rotating shaft and the bottom of the arc-shaped baffle are both fixedly connected to the drive disc. Several water collection bowls are fixedly installed at the bottom of the rotating shaft and are arranged radially. Each water collection bowl is provided with a scraper on its top.
7. The straw returning-to-field integrated equipment according to claim 5, characterized in that, Along the width extension direction of the arc-shaped water baffle, both ends of the arc-shaped water baffle are provided with cutting bevels, and two adjacent cutting bevels together form a V-shaped structure.
8. A method of using an integrated straw return equipment, comprising using the integrated straw return equipment as described in claim 4, characterized in that, Includes the following steps: Step 1: Move the vehicle frame across the field; Step 2: The crushing component operates, crushing the straw into small pieces and throwing them towards the baffle. Step 3: The water supply component operates, sending water into the water outlet pipe. The water in the water outlet pipe sprays out from the dust suppression spray hole, wetting the crushed straw and the field, thus suppressing dust. The wet straw pieces collide with the baffle and fall down into the field. Step 4: The adjustment component moves the water outlet pipe to one end of the baffle. The water supply component sends water into the spray pipe near the transmission component. The water in the spray pipe sprays towards the transmission component. The transmission component can rotate after being hit by the water, and drives the scraper to rotate together. The scraper scrapes off the small pieces of straw attached to the outer surface of the water outlet pipe. Step 5: The adjustment component drives the water outlet pipe to move back and forth between the two ends of the baffle. The water supply component sends water into the water outlet pipe, and the water in the water outlet pipe is sprayed out from the cleaning spray hole to wash away the small pieces of straw attached to the side wall of the baffle.
Citation Information
Patent Citations
Novel straw smashing and returning machine auxiliary device
CN223053477U