Mechanical recovery device for residual mulching film on surface soil

Abstract

The invention discloses a mechanical recovery device for residual mulching films on surface soil, which comprises a main body frame, a sealing cover is hinged to one end of the main body frame, a soil compaction roller is arranged at the other end of the main body frame, a film beating rod is arranged above the soil compaction roller, a residual film recovery bin is arranged below the soil compaction roller, a film stripping roller is arranged on the film beating rod, and a residual film recovery roller is arranged between the residual film recovery bin and the soil compaction roller. A speed change mechanism is arranged between the residual film recovery roller and the soil compaction roller, the film removing roller is connected with the speed change mechanism through a transmission mechanism, and the residual film recovery roller is connected with the speed change mechanism through the transmission mechanism; the device is dragged by walking equipment, a residual film recovery blade is arranged on the residual film recovery roller, the matched blade size and distance are selected according to the depth of soil containing residual mulching films and the size of the residual mulching films, then residual film recovery of surface soil is completed, the film removal roller brushes the blade face of the residual film recovery blade through a brush rotating at a high speed, and the residual film recovery roller is driven by the walking equipment. And the mulching film fragments are separated from the residual film recovery roller, and the film beating rod can eject off the mulching film fragments attached to the brush of the demolding roller.

Description

Technical Field

[0001] The invention relates to a recovery device, in particular to a mechanical recovery device for residual ground film on surface soil. Background Art

[0002] In northern my country, due to the low temperature and little rainfall in early spring, soil moisture conservation and heat preservation of farmland are important guarantees for increasing crop yields and incomes, and large-scale mulch film covering farmland is still the main way to conserve soil moisture and keep it moist. The main component of the mulch film used in farmland is polyethylene, a white or black film. Domestic mulch films are generally thin, mostly less than 0.1mm, with low tensile strength. Although mulch films play a significant role in increasing crop yields and incomes, with the large-scale use of mulch films and their non-degradability, in crop-producing areas where mulch films are intensively used and have low recycling rates, due to the cumulative effect over the years, there are a large number of residual mulch film fragments of varying diameters in the depth range of 0 to 35 cm on the soil surface, and the adverse consequences are gradually becoming prominent. First, it destroys the soil structure, affects the growth of soil microorganisms, hinders plants from absorbing water, nutrients and root growth, and leads to reduced crop yields; second, the residual mulch film will continue to move with farming, destroying the environment and causing a large amount of plastic waste, etc. Summary of the invention

[0003] The present invention provides a mechanical recovery device for residual ground film on surface soil, which is used to overcome the defects of the conventional ground film recovery method in the prior art, such as rough working mode and low ground film recovery rate.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention discloses a mechanical recovery device for residual ground film in surface soil, comprising a main frame, a sealing cover is hingedly connected at one end of the main frame, a film beating rod is fixedly connected at the top, a residual film recovery bin is arranged at the bottom, a film stripping roller is connected to the film beating rod, a soil compacting roller is arranged at the other end of the main frame, a residual film recovery roller is arranged between the residual film recovery bin and the soil compacting roller, the residual film recovery roller consists of a steel cylinder and residual film recovery blades distributed on its outer diameter, a speed change mechanism is arranged between the residual film recovery roller and the soil compacting roller, the film stripping roller is connected to the speed change mechanism through a transmission mechanism, and the residual film recovery roller is connected to the speed change mechanism through a transmission mechanism.

[0006] Furthermore, the residual film recovery blade is a 3-5 mm thick steel plate cut into a double arc tangent shape and welded to the outer wall of the steel cylinder in a spiral line. The blade tip is inserted into the broken film in the soil and removed from the surface soil to achieve residual film recovery.

[0007] Furthermore, the soil compaction roller is connected by steel bars to form a cylindrical cage structure, the outer diameter of which is consistent with the outer diameter of the steel tube of the residual film recovery roller, and is used for crushing and compacting the soil clods on the soil surface.

[0008] Furthermore, the outer wall of the film stripping roller is densely planted with hard nylon bristles, the length of which is greater than 2 / 3 of the length of the blade, and is used to separate the ground film fragments from the residual film recovery roller.

[0009] Furthermore, the film-beating rod is composed of 4 to 5 steel round rods and is used to bounce off the film fragments attached to the brush of the demoulding roller.

[0010] Furthermore, a film-blocking curtain is provided on the outer wall of the residual film recovery bin. The film-blocking curtain is a curtain-shaped hard nylon bristle, which is used to prevent the fallen ground film fragments from falling out of the residual film recovery bin.

[0011] Furthermore, the transmission mechanism is composed of a transmission sprocket and a transmission chain. The transmission sprocket is composed of 4 sprockets, and the transmission chain is composed of 2 chains, which are used to realize the transmission of power from the residual film recovery roller to the film stripping roller.

[0012] Furthermore, the speed changing mechanism includes a large gear and a small gear meshing with each other, the large gear is coaxially arranged with the transmission sprocket on the opposite side of the residual film recovery roller, and the small gear is coaxially arranged with the transmission sprocket on the opposite side of the demolding roller, so that the rotation speed of the demolding roller is 3 to 5 times higher than that of the residual film recovery roller.

[0013] The beneficial effects achieved by the present invention are as follows: the device is towed by a walking device, and a plurality of residual film recovery blades are provided on the residual film recovery roller. The appropriate blade size and spacing are selected according to the depth of the soil containing residual film and the size of the residual film. The residual film recovery of the surface soil is completed through one or more operations. The demolding roller uses a high-speed rotating brush to brush the blade surface of the residual film recovery blade to separate the film fragments from the residual film recovery roller, and the film beating rod is used to bounce off the film fragments attached to the brush of the demolding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 .

[0017] In the figure: 1. residual film recovery roller; 2. soil compaction roller; 3. film stripping roller; 4. film beating rod; 5. film blocking curtain; 6. speed change mechanism; 7. transmission sprocket; 8. transmission chain; 9. residual film recovery bin; 10. main frame; 11. sealing cover. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] Example 1

[0020] like Figures 1-2 As shown, a mechanical recovery device for residual film in surface soil comprises a main frame 10, one end of the main frame 10 is hinged with a sealing cover 11, a film beating rod 4 is fixedly connected to the top, a residual film recovery bin 9 is provided below, a film beating rod 4 is connected to a film stripping roller 3, the other end of the main frame 10 is provided with a soil compacting roller 2, a residual film recovery roller 1 is provided between the residual film recovery bin 9 and the soil compacting roller 2, the residual film recovery roller 1 is composed of a steel cylinder and residual film recovery blades distributed on its outer diameter, a speed change mechanism 6 is provided between the residual film recovery roller 1 and the soil compacting roller 2, the film stripping roller 3 is connected to the speed change mechanism 6 through a transmission mechanism, and the residual film recovery roller 1 is connected to the speed change mechanism 6 through a transmission mechanism.

[0021] The residual film recovery roller 1 is fixed on the main frame 10 and rotates driven by the walking machinery. It is composed of a steel cylinder with a certain diameter and thickness and a residual film recovery blade. The blade is cut from a 3-5mm thick steel plate into a double arc tangent shape and welded to the outer wall of the steel cylinder in a spiral line. When the residual film recovery roller 1 rotates, the blade will penetrate into the surface soil under pressure, and use the tip of the blade to insert the broken film in the soil and take it away from the surface soil, thereby achieving the purpose of residual film recovery.

[0022] The soil compaction roller 2 is fixed on the main frame 10 and rotates under the drive of the walking machine. It is connected by steel bars of a certain diameter to form a cylindrical cage structure, and its outer diameter is consistent with the outer diameter of the steel cylinder of the residual film recovery roller 1, so as to achieve the crushing and compaction of the soil surface clods.

[0023] The demoulding roller 3 is fixed on the main frame 10, and rotates rapidly under the drive of the residual film recovery roller 1, the transmission gear 7, the transmission rack 8 and the speed change mechanism 6. The main structure is that hard nylon bristles of a certain length and diameter are densely planted on the surface of the steel cylinder, and the length of the bristles is greater than 2 / 3 of the length of the blade. Through the transmission mechanism and the speed change mechanism 6, the speed of the demoulding roller is made greater than 3-5 times the speed of the residual film recovery roller 1, and the high-speed rotating brush is used to brush the blade surface of the residual film recovery roller 1 to achieve the purpose of separating the ground film fragments from the residual film recovery roller.

[0024] The film-beating rod 4 is composed of 4 to 5 steel round rods and is fixed on the main frame 10 in a manner of gradually approaching the demoulding roller 3 from bottom to top, so as to achieve the purpose of dropping the ground film fragments attached to the brush of the demoulding roller.

[0025] The film-blocking curtain 5 is formed into a curtain shape by densely packing hard nylon bristles and fixed on the main frame 10 to prevent the fallen ground film fragments from falling out of the residual film recovery bin 9 and to ensure that the blade of the residual film recovery roller can rotate smoothly.

[0026] The speed changing mechanism 6 includes a large gear and a small gear meshing with each other. The large gear is coaxially arranged with the transmission sprocket 7 on the opposite side of the residual film recovery roller 1, and the small gear is coaxially arranged with the transmission sprocket 7 on the opposite side of the demolding roller 3, so that the rotation speed of the demolding roller 3 is 3 to 5 times greater than that of the residual film recovery roller 1.

[0027] The transmission mechanism consists of a transmission sprocket 7 and a transmission chain 8.

[0028] The transmission sprocket 7 is composed of four sprockets, which realize the transmission of power from the residual film recovery roller 1 to the film stripping roller 3.

[0029] The transmission chain 8 is composed of two chains, which realizes the transmission of power from the residual film recovery roller 1 to the film stripping roller 3.

[0030] The residual film recovery bin 9 is fixed on the main frame 10 and can be freely moved in and out through a slide rail, so as to facilitate the collection and cleaning of residual film fragments.

[0031] The main frame 10 is welded from steel square tubes to achieve the connection and fixation of various parts of the mechanical device and can be connected to the walking machine.

[0032] The sealing cover 11 is fixed on the main frame 10 to shield and seal the residual film from overflowing during the recovery process.

[0033] It should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein by equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. The terms used in the description of this application are only for describing specific implementations, and are not intended to limit the exemplary implementations according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and devices should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0035] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

Claims

1. A mechanical recovery device for residual mulch film on the surface soil, characterized in that: It comprises a main frame, one end of which is hinged with a sealing cover, and the other end of which is provided with a soil compacting roller, a film beating rod is fixedly connected to the upper part thereof, a residual film recovery bin is provided at the lower part thereof, a film stripping roller is provided on the film beating rod, a residual film recovery roller is provided between the residual film recovery bin and the soil compacting roller, the residual film recovery roller consists of a steel cylinder and residual film recovery blades distributed on its outer diameter, a speed changing mechanism is provided between the residual film recovery roller and the soil compacting roller, the film stripping roller is connected to the speed changing mechanism through a transmission mechanism, and the residual film recovery roller is connected to the speed changing mechanism through a transmission mechanism.

2. The mechanical recovery device for residual mulch film on the surface soil according to claim 1 is characterized in that: The residual film recovery blade is a 3-5 mm thick steel plate cut into a double arc tangent shape, welded to the outer wall of the steel cylinder in a spiral line manner, and the blade tip is used to insert the broken ground film in the soil and remove it from the surface soil to achieve residual film recovery.

3. The mechanical recovery device for residual mulch film on the surface soil according to claim 1, characterized in that: The soil compacting roller is connected by steel bars to form a cylindrical cage structure, the outer diameter of which is consistent with the outer diameter of the steel cylinder of the residual film recovery roller, and is used for crushing and compacting soil lumps on the soil surface.

4. The mechanical recovery device for residual mulch film on the surface soil according to claim 1, characterized in that: The outer wall of the film stripping roller is densely planted with hard nylon bristles, the length of which is greater than 2 / 3 of the length of the blade, and is used to separate the ground film fragments from the residual film recovery roller.

5. The mechanical recovery device for residual mulch film on the surface soil according to claim 1, characterized in that: The film beating rod is composed of 4 to 5 steel round rods and is used to bounce off the film fragments attached to the brush of the demoulding roller.

6. The mechanical recovery device for residual mulch film on the surface soil according to claim 1, characterized in that: The outer wall of the residual film recovery bin is provided with a film blocking curtain, which is a curtain-shaped hard nylon bristle and is used to prevent the fallen ground film fragments from falling out of the residual film recovery bin.

7. The mechanical recovery device for residual mulch film on the surface soil according to claim 1 is characterized in that: The transmission mechanism is composed of a transmission sprocket and a transmission chain. The transmission sprocket is composed of 4 sprockets and the transmission chain is composed of 2 chains, which are used to transmit power from the residual film recovery roller to the film stripping roller.

8. The mechanical recovery device for residual mulch film on the surface soil according to claim 7, characterized in that: The speed changing mechanism includes a large gear and a small gear meshing with each other. The large gear is coaxially arranged with the transmission sprocket on the opposite side of the residual film recovery roller, and the small gear is coaxially arranged with the transmission sprocket on the opposite side of the demolding roller, so that the rotation speed of the demolding roller is 3 to 5 times higher than that of the residual film recovery roller.

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