Negative pressure type straw soil and impurity removing machine

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a negative pressure type straw soil and impurity removing machine which comprises a box body, a roller, a fan and a stripping assembly. A feeding hole is formed in the bottom surface of the box body, a dust removal hole is formed in the end surface, and a straw outlet is formed in the side surface; the roller is rotationally mounted in the box body, screen holes are formed in the wall of the roller, and one end of the roller is communicated with the dust removal opening; an air suction opening of the fan is communicated with the dust removal opening of the box body; the stripping assembly is installed at the straw outlet of the box body and used for stripping the straw from the surface of the roller. By means of the closed roller structure and the integrated negative pressure adsorption system, the problems that in the operation process of traditional equipment, flying dust pollution is serious, and the working environment is severe are solved, meanwhile, the impurity separation efficiency is optimized, and straw cleaning treatment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a negative pressure straw removal and impurity removal machine. Background Technology

[0002] Most common straw removal and impurity removal machines currently use a combination of a vibrating screen and a blower. The specific components include a vibrating screen, a blower, and a cyclone separator. The pulverized straw is placed on the vibrating screen; the screen's movement causes the dust and dirt in the straw to fall through the screen holes and into the lower part of the screen surface. The straw on the screen surface is then sucked into the cyclone separator by the blower. Due to the difference in specific gravity between straw and impurities, heavier impurities cannot be lifted by the blower and are ultimately output from the screen surface, completing the impurity removal process. The vibrating of the screen is achieved through a specific mechanical transmission device, and the blower's suction force needs to be sufficient to ensure that the straw can be effectively removed.

[0003] The aforementioned processing method causes friction and collisions between the straw and the screen surface during the shaking of the sieve, resulting in a large amount of dust being stirred up and causing serious pollution to the working environment. When the straw falls into the cyclone separator, dust is also generated due to airflow and the movement of the straw; this dust is difficult to collect completely, further exacerbating environmental pollution. Moreover, this method poses a threat to the health of workers; long-term exposure to such an environment may lead to respiratory diseases and other health problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model embodiment is to provide a negative pressure straw soil and impurity removal machine. Through a closed drum structure and an integrated negative pressure adsorption system, it solves the problems of severe dust pollution and harsh working environment during the operation of traditional equipment, while optimizing the impurity separation efficiency and achieving clean straw treatment.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A negative pressure straw desoiling and impurity removal machine includes: a box body, a roller, a fan, and a stripping assembly; the bottom surface of the box body is provided with a feed inlet, the end face is provided with a dust removal port, and the side is provided with a straw outlet; the roller is rotatably installed inside the box body, the roller wall has sieve holes, and one end of the roller is connected to the dust removal port; the air intake of the fan is connected to the dust removal port of the box body; the stripping assembly is installed at the straw outlet of the box body and is used to strip the straw from the surface of the roller.

[0007] Optionally, the feed inlet faces the tangential direction of the drum, the dust removal port is aligned with the center of the drum, and the straw outlet is arranged radially along the drum.

[0008] Optionally, a conveyor belt is provided on the lower side of the box, and the feed inlet of the box is located on the upper side of the tail end of the conveyor belt.

[0009] Optionally, the roller includes a frame, a central shaft, and a screen, with the central shaft mounted at the center of the frame and the screen covering the outer circumferential surface of the frame.

[0010] Optionally, bearing seats are installed at both ends of the housing, and the two ends of the central shaft of the roller are respectively installed on the bearing seats.

[0011] Optionally, the peeling assembly includes two peeling rollers, the axes of which are parallel and both are parallel to the axis of the drum.

[0012] Optionally, the stripping roller includes a first stripping roller and a second stripping roller, wherein the first stripping roller is located on one side of the straw outlet and is tangent to the drum, and the second stripping roller is located on the other side of the straw outlet.

[0013] Optionally, the first stripping roller is a fixed roller, and the second stripping roller is a floating roller.

[0014] Optionally, the end face of the box is provided with a fixing plate, the fixing plate is provided with a sliding groove, and a spring, a swing frame and a rotating shaft are installed. The end of the floating roller passes through the sliding groove and is installed on the swing frame. The other end of the swing frame is connected to the rotating shaft. A support rod extends from the middle of the swing frame, and one end of the support rod is connected to the spring.

[0015] Optionally, reinforcing bars are arranged on the outer circumferential surface of the stripping roller.

[0016] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0017] This utility model discloses a negative pressure straw soil and impurity removal machine, comprising a housing, a drum, a fan, and a stripping assembly. The housing serves as the supporting frame for the entire device. The feed inlet of the housing is located at the bottom for sucking in straw material, while the dust removal port is located on the end face and communicates with the inside of the drum to discharge dust. The straw outlet is located on the side for outputting purified straw. The drum forms a negative pressure adsorption surface through the screen holes in the drum wall. The suction force generated by the fan causes the straw to be adsorbed onto the outer surface of the drum, while dust enters the inside of the drum through the screen holes and is extracted. The stripping assembly is located at the straw outlet and mechanically peels the straw off the surface of the drum. This structure, through the synergistic effect of closed negative pressure adsorption and mechanical stripping, avoids the dust problem caused by traditional open screening, achieving clean operation.

[0018] Additional advantages of this invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. Furthermore, the spacing or dimensions between components are exaggerated to show their positions; the schematic diagrams are for illustrative purposes only.

[0020] Figure 1 This is a perspective view of the soil and debris removal machine provided in this embodiment of the utility model;

[0021] Figure 2 This is a side view of the soil and debris removal machine provided in this embodiment of the utility model;

[0022] Figure 3 This is a front sectional view of the soil and debris removal machine provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the roller provided in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the roller installed inside the box according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the peeling roller arrangement of the box body provided in this embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the installation of the peeling assembly provided in an embodiment of this utility model;

[0027] Figure 8 This is a schematic diagram of the floating roller installation provided in an embodiment of the present invention;

[0028] In the diagram: 1. Conveyor belt; 2. Box body; 21. Feed inlet; 22. Dust removal port; 23. Straw outlet; 3. Fan; 4. Bag dust collector; 5. Roller; 51. Central shaft; 52. Frame; 53. Screen; 6. Stripping assembly; 61. Fixed roller; 62. Floating roller; 63. Spring; 64. Slide chute; 65. Swing frame; 66. Rotating shaft; 67. Fixed plate; Detailed Implementation

[0029] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] like Figure 1 , Figure 2, Figure 3 As shown, this embodiment proposes a negative pressure straw soil and impurity removal machine, including: a housing 2, a roller 5, a fan 3, and a stripping assembly 6; the bottom surface of the housing 2 is provided with a feed inlet 21, the end surface is provided with a dust removal port 22, and the side surface is provided with a straw outlet 23 (e.g., ...). Figure 6 (as shown); the roller 5 is rotatably installed inside the box 2, the roller 5 has sieve holes on its cylinder wall, and one end of the roller 5 is connected to the dust removal port 22; the air intake of the fan 3 is connected to the dust removal port 22 of the box 2; the stripping assembly 6 is installed at the straw outlet 23 of the box 2 and is used to strip the straw from the surface of the roller 5.

[0031] The feed inlet 21 on the bottom of the housing 2 is used for inputting straw, the dust collection port 22 on the end face is used for collecting dust, and the straw outlet 23 on the side is used for discharging clean straw. The roller 5 is rotatably installed inside the housing 2. The sieve holes on the roller wall allow fine impurities such as dust to pass through. One end of the roller 5 is connected to the dust collection port 22. This structural design allows dust to be effectively guided to the dust collection port 22 during the rotation of the roller 5. The suction port of the blower 3 is connected to the dust collection port 22 of the housing 2. Through the suction action of the blower 3, dust is drawn out from inside the roller 5, thus achieving dust collection and treatment. The stripping assembly 6 is installed at the straw outlet 23 of the housing 2. Its function is to strip the straw adsorbed on the outer surface of the roller 5, ensuring that the straw can be smoothly discharged from the housing 2, completing the entire process of soil and impurity removal.

[0032] The feed inlet 21 faces the tangential direction of the drum 5, the dust removal port 22 is aligned with the center of the drum 5, and the straw outlet 23 is arranged radially along the drum 5.

[0033] The feed inlet 21 faces the tangential direction of the drum 5. This design allows the straw to move along the tangential direction of the drum 5 when entering the housing 2, thereby generating a tangential force on the surface of the drum 5. This helps the straw to be evenly distributed on the surface of the drum 5, improving the impurity removal effect. The dust removal port 22 is aligned with the center of the drum 5, ensuring that dust can be smoothly extracted along the axial direction of the drum 5, avoiding the formation of eddies or dead corners inside the drum 5, and improving the suction efficiency of the blower 3. The straw outlet 23 is arranged radially along the drum 5, allowing the stripped straw to be discharged directly along the radial direction of the drum 5, reducing secondary collisions and dust during the discharge process, further reducing environmental pollution. This layout optimizes the airflow distribution and material movement path, improving the impurity separation effect.

[0034] The impurity removal machine also includes a conveyor belt 1, which is arranged on the lower side of the housing 2, with the feed inlet 21 of the housing 2 located on the upper side of the tail end of the conveyor belt 1. This layout allows straw to be directly transported to the feed inlet 21 via the conveyor belt 1 without manual intervention, improving the automation level of the equipment. Simultaneously, the position design of the conveyor belt 1 also considers its connection with the feed inlet 21 of the housing 2, ensuring that the straw can smoothly enter the housing 2 to begin the soil and impurity removal process. The linkage between the conveyor belt 1 and the negative pressure adsorption system ensures that the material smoothly enters the housing 2 and is adsorbed by the roller 5, reducing the risk of blockage and improving processing efficiency.

[0035] like Figure 4 As shown, the roller 5 includes a frame 52, a central shaft 51, and a screen 53. The central shaft 51 is installed at the center of the frame 52, and the screen 53 covers the outer circumferential surface of the frame 52. The outer surfaces of both ends of the roller 5 are sealed to the side walls of the housing 2.

[0036] The frame 52, as the main structure of the drum 5, provides sufficient strength and rigidity to withstand the impact of the straw and its own rotational force. The installation of the central shaft 51 ensures that the drum 5 can rotate stably, while the screen 53 plays the role of screening and filtering. The screen holes on it allow fine impurities such as dust to pass through, while blocking larger straws, so that the straw can form a uniform layer on the surface of the drum 5, which is beneficial to subsequent impurity removal operations.

[0037] like Figure 5 , Figure 7 As shown, bearing seats are installed at both ends of the housing 2, and the two ends of the central shaft 51 of the roller 5 are respectively installed on the bearing seats. The bearing seats provide stable support for the rotation of the roller 5, ensuring the concentricity and stability of the roller 5 during rotation, reducing vibration and wear of the equipment, and improving the service life and reliability of the equipment.

[0038] The stripping assembly 6 includes two stripping rollers with parallel axes, both parallel to the axis of the drum 5. The stripping assembly 6 includes two stripping rollers parallel to the axis of the drum 5, forming a compression channel between the two rollers. When the drum 5 rotates the straw to the straw outlet 23, the stripping rollers scrape the straw off the surface of the drum 5 by rotating in the opposite direction. The rotation of the drum 5 and the rotation of the stripping rollers are powered by the same force and connected to each other via sprockets and chains of different diameters, allowing for adjustment of their rotational speeds according to different types of straw.

[0039] The stripping roller includes a first stripping roller and a second stripping roller. The first stripping roller is located on one side of the straw outlet 23 and is tangent to the drum 5 but has a certain gap. The second stripping roller is located on the other side of the straw outlet 23.

[0040] As drum 5 rotates, the first stripping roller approaches the surface of drum 5 to perform initial stripping of the straw. The second stripping roller is located on the other side of the outlet, forming a squeezing gap to perform secondary stripping of the remaining straw. The design of placing the two rollers on opposite sides of the outlet creates a "stripping-clamping" synergistic effect, improving stripping efficiency and reducing straw residue on the surface of drum 5.

[0041] like Figure 6 As shown, the first stripping roller is a fixed roller 61, and the second stripping roller is a floating roller 62. The design of the fixed roller 61 ensures the stability of its position during the stripping process, and can continuously apply a stable force to the straw on the surface of the roller 5. The design of the second stripping roller as a floating roller 62 can automatically adjust the pressure and angle between the stripping roller and the roller 5 according to the accumulation of straw and the rotation state of the roller 5, making the stripping process more adaptable to different working conditions, improving the flexibility and adaptability of the equipment, and avoiding problems such as incomplete stripping or equipment damage caused by too much or too little straw accumulation.

[0042] like Figure 7 , Figure 8 As shown, a fixing plate 67 is provided on the end face of the box 2. A sliding groove 64 is provided on the fixing plate 67, and a spring 63, a swing frame 65 and a rotating shaft 66 are installed thereon. The end of the floating roller 62 passes through the sliding groove 64 and is installed on the swing frame 65. The other end of the swing frame 65 is connected to the rotating shaft 66. A support rod extends from the middle of the swing frame 65, and one end of the support rod is connected to the spring 63.

[0043] The floating roller 62, under the action of the spring 63, can move and oscillate along the groove 64 to achieve adaptive peeling of straw from the surface of the roller 5. When there is a large accumulation of straw, the floating roller 62, under the elastic force of the spring 63, can move away from the roller 5 to reduce the peeling force and avoid straw breakage or equipment damage due to excessive peeling force. When there is a small accumulation of straw, the floating roller 62, under the tension of the spring 63, moves closer to the roller 5 to increase the peeling force and ensure that the straw can be completely peeled off. At the same time, the setting of the rotating shaft 66 and the swing frame 65 also provides stable support and guidance for the swing of the floating roller 62, ensuring the movement trajectory and stability of the floating roller 62.

[0044] The outer circumferential surface of the stripping roller is provided with steel bars, which are arranged axially or spirally. The steel bars increase the gripping force when in contact with the straw, so that the stripping roller can more effectively peel the straw off the surface of the roller 5 during rotation.

[0045] Work process:

[0046] The crushed straw is placed into the conveyor belt 1. When the straw is conveyed to the bottom of the feed inlet 21, it is adsorbed onto the outer surface of the drum 5 by the suction of the fan 3. Fine impurities such as dust are sucked into the inside of the drum 5 and conveyed to the bag filter 4 through the outlet of the fan 3. The straw falls into the collection box of the bag filter 4. The straw adsorbed on the outer surface of the drum 5 is carried to the straw outlet 23 as the drum 5 rotates. The stripping roller peels the straw off the outer surface of the drum 5. Impurities with a higher specific gravity cannot be sucked in and are thrown out by the conveyor belt 1, thus achieving the purpose of removing soil and impurities.

[0047] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A negative pressure type straw soil and impurity removing machine, characterized in that, The utility model relates to a straw stripping device, which comprises a box, a roller, a fan and a stripping assembly. The bottom of the box is provided with a feeding port, the end face is provided with a dust removal port, and the side face is provided with a straw outlet. The roller is rotatably installed in the box, the barrel wall of the roller is provided with sieve holes, and one end of the roller is communicated with the dust removal port. The suction port of the fan is communicated with the dust removal port of the box. The stripping assembly is installed at the straw outlet of the box and is used for stripping the straw from the surface of the roller. The feeding port is directed to the tangent direction of the roller, the dust removal port is aligned with the center of the roller, and the straw outlet is arranged along the radial direction of the roller.

2. The negative pressure type straw soil and impurity removing machine according to claim 1, wherein The lower side of the box is provided with a conveying belt, and the feeding port of the box is located on the upper side of the tail end of the conveying belt.

3. The negative pressure type straw soil and impurity removing machine according to claim 1, wherein The roller comprises a barrel frame, a center shaft and a sieve net, the center shaft is installed at the center of the barrel frame, and the sieve net is wrapped on the outer circumferential surface of the barrel frame.

4. The negative pressure type straw soil and impurity removing machine according to claim 1, wherein Both ends of the center shaft of the roller are installed on the bearing seats.

5. The negative pressure type straw soil and impurity removing machine according to claim 4, characterized in that, The stripping assembly comprises two stripping rollers, the axes of the two stripping rollers are parallel, and the axes of the two stripping rollers are parallel to the axis of the roller.

6. The negative pressure type straw soil and impurity removing machine according to claim 1, wherein The stripping rollers comprise a first stripping roller and a second stripping roller, the first stripping roller is located on one side of the straw outlet and is tangent to the roller, and the second stripping roller is located on the other side of the straw outlet.

7. The negative pressure type straw soil and impurity removing machine according to claim 6, characterized in that, The first stripping roller is a fixed roller, and the second stripping roller is a floating roller.

8. The negative pressure type straw soil and impurity removing machine according to claim 7, characterized in that, The end face of the box is provided with a fixed plate, the fixed plate is provided with a sliding groove, and the fixed plate is provided with a spring, a swing frame and a rotating shaft, the end portion of the floating roller penetrates through the sliding groove and is installed on the swing frame, the other end of the swing frame is connected with the rotating shaft, the middle portion of the swing frame extends a supporting rod, and one end of the supporting rod is connected with the spring.

9. The negative pressure type straw soil and impurity removing machine according to claim 8, characterized in that, The outer circumferential surface of the stripping roller is arranged with a reinforcing bar.

10. The negative pressure type straw soil and impurity removing machine according to claim 6, wherein ​

Images