An adjustable stone collecting and soil loosening mechanical arm structure for a stone picking machine

Abstract

The present invention discloses an adjustable stone collecting and soil loosening mechanical arm structure for a stone picking machine, comprising a mechanical arm body, a drive unit protective shell provided on the left side of the mechanical arm body, a drive unit installed inside the drive unit protective shell, the drive unit connected to a rotating roller via a driving member, and a swing mechanism for loosening soil and collecting stones provided on the outer side of the rotating roller, and a fixed roller provided on the inner side of the rotating roller. The present invention can throw stones farther inward through the swing mechanism, which can reduce the hidden danger of repeated stone throwing by the blades on the one hand, and improve the efficiency of stone throwing and collecting on the other hand, and at the same time, can also throw up stones in the gaps between the spiral blades, thereby increasing the range of stone throwing and collecting by the blades, reducing the number of times the stone picking machine picks up stones in the field, thereby reducing the energy consumption of the stone picking machine, saving costs, and improving the efficiency of the mechanical arm in collecting stones in the field.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural field operation equipment, in particular to an adjustable stone collecting and soil loosening mechanical arm structure for a stone picking machine. Background Art

[0002] The stone picker is an agricultural equipment used for field operations. It throws and collects stones on the soil. It mainly operates through the mechanical arms on the left and right sides. When not in use, the mechanical arms can be retracted upwards by the drive of the hydraulic cylinder. When in use, the mechanical arms are also lowered by the drive of the hydraulic cylinder, and the stone collecting blades are inserted into the soil. Then, the driving element drives the rotating roller to rotate, so that the blades can not only loosen the soil in the field, but also transfer the stones on the soil to the center, and collect them in the stone collection box in the middle.

[0003] However, the stone collecting mechanism under the existing mechanical arm still has defects when in use. Since the mechanical arm itself is two or three meters long, and the blades for collecting the stones are spirally distributed on the outside of the rotating roller, and the stone picker is moving, the spirally distributed blades have a certain spacing. The blades not only rotate to throw stones, but also cooperate with the stone picker to move slowly. At this time, when the blades are rotating to throw stones, due to the spacing between the blades, the blades cannot increase the range of stones on the walking track of the field stone picker to throw stones to the middle to collect them, thereby causing the stone picker to need to walk back and forth many times to throw and collect stones in the field, thereby seriously reducing the efficiency of the stone picker in collecting stones;

[0004] Therefore, it is necessary to provide a kind of stone picking machine with an adjustable stone collecting and loosening soil mechanical arm structure to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable stone collecting and loosening mechanical arm structure for a stone picker, so as to solve the problem raised in the above background technology that the blades cannot increase the range of stones on the walking track of the field stone picker and throw them to the middle to collect them due to the spacing between the blades. The technical solution of the present invention is aimed at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an adjustable stone collecting and soil loosening mechanical arm structure for a stone picking machine, comprising a mechanical arm body, a drive part protective shell is provided on the left side of the mechanical arm body, and a drive unit is installed inside the drive part protective shell, the drive unit is connected to a rotating roller through a driving member, and a swinging mechanism for loosening soil and collecting stones is provided on the outside of the rotating roller, and a fixed roller is provided on the inside of the rotating roller.

[0007] In a further embodiment, the rotating roller is located below the robot arm body, and the fixed roller is connected to the robot arm body and the driving part protective shell.

[0008] In a further embodiment, the swing mechanism includes a circular plate spirally distributed on the outside of the rotating roller through a shaft, and a guide rod is installed on one side of the outer ring of the circular plate, and a blade is provided on the other side of the outer ring of the circular plate.

[0009] In a further embodiment, the circular plate and the rotating roller are a seamless sliding structure.

[0010] In a further embodiment, a soil loosening portion is provided below the blade, and a stone throwing portion is connected above the blade.

[0011] In a further embodiment, a sliding groove is provided on the outer side of the fixed roller, and the sliding groove is transitionally connected to a guide groove.

[0012] In a further embodiment, the angle between the guide groove and the sliding groove is no greater than 50°, and both the guide groove and the sliding groove form a sliding structure with the guide rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention is provided with blades, and the circular plate, the guide rod, the blades, the loosening part and the stone throwing part rotate around the fixed cylinder at the same time under the action of the rotation of the rotating roller. During the rotation process, the blades can effectively make the loosening part loosen the field soil evenly, thereby increasing the usability of the stone picking machine mechanical arm;

[0015] The present invention is provided with a swing mechanism, a slide groove and a guide groove. When the blade rotates, it can drive the guide rod to rotate in coordination with the sliding of the slide groove. When the guide rod passes through the guide groove, it can effectively drive the guide rod to swing to one side, thereby making the circular plate connected to one end of the guide rod rotate around the intermediate shaft, and then can effectively drive the blade connected to one side of the circular plate and the stone throwing part to swing toward the front side of the stone collecting box at the center of the stone picking machine. The blades under the existing mechanical arm are not provided with a swing mechanism, but are only spirally distributed on the outside of the rotating cylinder and then slowly transported to the center by rotation. Compared with the effect of the present application, such an effect has two defects;

[0016] First, the spirally distributed blades throw stones far away from the stone collecting box in the middle of the stone picker during walking and rotating, resulting in low efficiency. The blades close to the stone collecting box have to repeatedly transmit force to the stones thrown to the center, which seriously reduces the service life of the blades during long-term use. Second, there is a large distance between the spirally distributed blades. During the walking and rotating stone throwing process, there are always gaps, and the blades cannot throw the stones in the gaps to the center. As a result, the stone picker has to walk repeatedly in the field several times to pick up all the stones in the field.

[0017] To sum up, the structure provided by the present invention can throw stones farther inward, which can reduce the hidden dangers of repeated stone throwing by the blades on the one hand, and improve the efficiency of stone throwing and stone collection on the other hand. At the same time, the stones in the gaps between the spiral blades can be thrown up, thereby increasing the range of stone throwing and stone collection by the blades, reducing the number of times the stone picker picks up stones in the field, thereby reducing the energy consumption of the stone picker, saving costs, and improving the efficiency of the mechanical arm in collecting stones in the field. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a preferred embodiment of the adjustable stone collecting and soil loosening mechanical arm structure for a stone picking machine provided by the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the installation structure of the driving unit and the rotating roller;

[0020] Figure 3 for Figure 1 Schematic diagram of the installation structure of the rotating roller and the fixed roller;

[0021] Figure 4 for Figure 1 Schematic diagram of the shape and structure of the blade shown;

[0022] Figure 5 for Figure 3 The schematic diagram of the structure of the transition connection between the chute and the guide groove is shown;

[0023] Figure 6 for Figure 3 The schematic diagram of the structure of the blade swing riprap shown;

[0024] Figure 7 for Figure 6 The enlarged structural diagram of point A is shown.

[0025] In the figure: 1. Robot arm body; 2. Drive unit protective shell; 3. Drive unit; 4. Rotating roller; 5. Swing mechanism; 501. Circular plate; 502. Guide rod; 503. Blade; 503a. Soil loosening unit; 503b. Stone throwing unit; 6. Fixed roller; 601. Slide; 602. Guide groove. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-7 , the present invention provides an embodiment: an adjustable stone collecting and loosening mechanical arm structure for a stone picking machine, including a mechanical arm body 1, a driving part protective shell 2, a driving unit 3, a rotating roller 4, a swinging mechanism 5, a circular plate 501, a guide rod 502, a blade 503, a loosening part 503a, a stone throwing part 503b, a fixed roller 6, a slide 601 and a guide groove 602, a driving part protective shell 2 is provided on the left side of the mechanical arm body 1, and the driving unit 3 is installed inside the driving part protective shell 2, the driving unit 3 is connected to the rotating roller 4 through a driving member, and a swinging mechanism 5 for loosening soil and collecting stones is provided on the outside of the rotating roller 4, and a fixed roller 6 is provided on the inside of the rotating roller 4. Example 1

[0028] See also Figure 1-4 , the rotating roller 4 is located below the mechanical arm body 1, the fixed roller 6 is connected to the mechanical arm body 1 and the driving part protective shell 2, the swing mechanism 5 includes a circular plate 501 spirally distributed on the outside of the rotating roller 4 through an axis rod, and a guide rod 502 is installed on one side of the outer ring of the circular plate 501, and a blade 503 is provided on the other side of the outer ring of the circular plate 501. The circular plate 501 and the rotating roller 4 are a seamless sliding structure, a loosening part 503a is provided below the blade 503, and a stone throwing part 503b is connected above the blade 503. First, under the drive of the left and right hydraulic cylinders on the stone picking machine, the corresponding mechanical arm body 1 is lowered, and the blade 503 below the outer side of the rotating roller 4 is partially inserted into the soil. After that, the stone picking machine starts to move. At this time, the driving unit 3 in the driving part protective shell 2 drives the rotating roller 4, and at the same time drives the blade 503 to rotate around the center of the rotating roller 4 under the sliding action of the guide rod 502 and the slide 601, so that the loosening part 503a of the blade 503 can effectively loosen the field soil; Example 2

[0029] See also Figure 5-7, which is different from Example 1: a loosening portion 503a is provided below the blade 503, and a stone-throwing portion 503b is connected above the blade 503, a slide groove 601 is provided on the outside of the fixed roller 6, and the slide groove 601 is transitionally connected to a guide groove 602, the angle between the guide groove 602 and the slide groove 601 is not greater than 50 degrees, and the guide groove 602 and the slide groove 601 both form a sliding structure with the guide rod 502, when the rotation position of the blade 503 is located below the front side of the rotating roller 4, because the guide groove 602 transitions to the side of the slide groove 601, and the angle between the guide groove 602 and the center of the slide groove 601 is not greater than 50 degrees, when the stone-throwing portion 503b of the blade 503 is on the upper surface of the soil, the guide rod 502 can be guided to slide through the guide groove 602, as shown in FIG. Figure 5 As shown, under the action of the special setting of the guide groove 602, the guide rod 502 can swing toward the center position of the front side of the stone picker, thereby driving the blade 503 and the stone throwing part 503b to swing to one side around the center of the circular plate 501, and then under the action of the rapid swing of the stone throwing part 503b, the stones above the soil can be effectively thrown to the front of the stone collecting box in the middle of the stone picker.

[0030] Working principle: When in use, Figure 1-4 As shown, first, the corresponding mechanical arm body 1 is lowered by the drive of the left and right hydraulic cylinders on the stone picker, and the blade 503 below the outer side of the rotating roller 4 is partially inserted into the soil. After that, the stone picker starts to move. At this time, the driving unit 3 in the driving part protection shell 2 drives the rotating roller 4, and at the same time drives the blade 503 to rotate around the center of the rotating roller 4 under the action of the sliding of the guide rod 502 and the slide 601, so that the loosening part 503a of the blade 503 can effectively loosen the field soil;

[0031] like Figure 5-7 As shown, when the blade 503 is rotated to the lower front side of the rotating roller 4, since the guide groove 602 transitions to the side of the slide groove 601 and the angle between the guide groove 602 and the center of the slide groove 601 is not greater than 50 degrees, when the stone-throwing portion 503b of the blade 503 is on the upper surface of the soil, the guide groove 602 can guide the guide rod 502 to slide, as shown in FIG. Figure 5As shown, under the action of the special setting of the guide groove 602, the guide rod 502 can swing toward the center position of the front side of the stone picker, thereby driving the blade 503 and the stone throwing part 503b to swing to one side around the center of the circular plate 501, and then under the action of the rapid swing of the stone throwing part 503b, the stones above the soil can be effectively thrown to the front of the stone collecting box in the middle of the stone picker, and finally, as the stone picker moves, the stones in front of the stone collecting box are filtered and collected. For the principle of collecting stones by the stone collecting box of the stone picker, please refer to the stone picker structure disclosed in authorization number CN207639101U. The application document introduces in detail the principle of filtering and collecting stones by the collecting box in the middle of the stone picker. The above is the working process of this case, thereby completing a series of tasks.

[0032] Any content not described in detail in this specification is prior art known to those skilled in the art. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "connected" are to be understood broadly, meaning, for example, fixedly connected, detachably connected, or integrally connected; mechanically connected, electrically connected; directly connected, or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention on a case-by-case basis.

[0033] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An adjustable stone collecting and soil loosening mechanical arm structure for a stone picking machine, comprising a mechanical arm body (1), characterized in that: A drive unit protection shell (2) is provided on the left side of the robot arm body (1), and a drive unit (3) is installed inside the drive unit protection shell (2), the drive unit (3) is connected to a rotating roller (4) through a driving member, and a swing mechanism (5) for loosening soil and collecting stones is provided on the outside of the rotating roller (4), and a fixed roller (6) is provided on the inside of the rotating roller (4); The swing mechanism (5) comprises a circular plate (501) spirally distributed on the outside of the rotating roller (4) via a shaft, and a guide rod (502) is installed on one side of the outer ring of the circular plate (501), and a blade (503) is provided on the other side of the outer ring of the circular plate (501); The circular plate (501) and the rotating roller (4) form a seamless sliding structure; A soil loosening portion (503a) is provided below the blade (503), and a stone throwing portion (503b) is connected above the blade (503); The rotating roller (4) is located below the robot arm body (1), and the fixed roller (6) is connected to the robot arm body (1) and the driving part protective shell (2); A sliding groove (601) is provided on the outer side of the fixed roller (6), and the sliding groove (601) is transitionally connected to a guide groove (602); The angle between the guide groove (602) and the slide groove (601) is no greater than 50°, and the guide groove (602) and the slide groove (601) both form a sliding structure with the guide rod (502); When the blade (503) is rotated and located below the front side of the rotating roller (4), since the guide groove (602) transitions to a position on one side of the chute (601), and the angle between the guide groove (602) and the center of the chute (601) is not greater than 50 degrees, when the stone throwing portion (503b) of the blade (503) is located on the upper surface of the soil, the guide groove (602) can guide the guide rod (502) to slide. Under the action of the special setting of the guide groove (602), the guide rod (502) can be swung toward the center position of the front side of the stone picking machine, thereby driving the blade (503) and the stone throwing portion (503b) to swing toward one side around the center of the circular plate (501). Then, under the action of the rapid swing of the stone throwing portion (503b), the stones above the soil can be effectively thrown toward the front of the stone collecting box in the middle of the stone picking machine.

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