Crop seedling turning and drying device

Abstract

The present invention discloses a crop seedling turning and drying device, which includes two symmetrically installed turning rollers. In the front-to-back direction, the two turning rollers are arranged in a V-shaped configuration with a low center and high ends. Each turning roller has a plurality of guide rods extending backward. The guide rods extending from the two turning rollers are arranged symmetrically in pairs. The guide rods are curved. In the left-right direction, for all guide rods corresponding to the same turning roller, the rear ends are arranged in reverse order relative to the front ends. Based on the existing technology, the present invention rearranges the guide rods so that the rear ends of all guide rods corresponding to the same turning roller are arranged in reverse order relative to the front ends. This allows two adjacent guide rods to have an intersection in the top-down direction, and all intersections corresponding to the same turning roller are staggered. This effectively controls the landing posture and landing point of the crop after turning, improves the turning and drying effect and the spreading effect, and achieves a better seedling spreading effect.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, in particular to a device for turning and drying crop seedlings. Background Art

[0002] During the harvesting process of root and fruit crops, the crops need to be dug out with their roots, and after turning the vines, they need to be spread out in the field. After the roots are fully dried, they can be picked up and further harvested to prevent the root and fruit from getting moldy after harvest. In the prior art, patent CN103918396 B provides a vine and fruit laying device, which includes a fixed frame, on which laying brackets are symmetrically fixedly connected on both sides, and curved arc rod-shaped laying strips are evenly fixedly connected on the inner side of the laying brackets. The laying strips form a laying grate. After being fixed, the laying strips face upward relative to the arc portion of the laying brackets, and their free tail ends have a downward slope. In addition, evenly distributed star disks are fixedly welded to the rotating shaft, and the star disks can rotate synchronously with the rotating shaft. This solution has the following drawbacks: The left and right star disk arrays are arranged in a V-shape both in the top view and in the front-to-back direction, and the extended portions of the laying bars are straight and arranged in parallel, causing the laying bars to tilt downward and converge toward the center. During actual operation, after the crops are turned by the star disks, the laying bars have a limited role in maintaining the crop's posture, primarily confined to gathering the crops toward the center. Consequently, the turning effect is poor. Similar patents include CN212138391U, which also utilize a similar bar structure and achieve similar laying effects as the aforementioned prior art. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a crop seedling turning and laying device with good turning and laying effects.

[0004] Technical Solution: To achieve the above-mentioned purpose, the crop seedling turning and drying device of the present invention comprises two symmetrically mounted turning rollers. In the front-to-back direction, the two turning rollers are arranged in a V-shape with a lower middle and higher ends. Each turning roller has a plurality of guide rods extending rearward. The guide rods extending from the two turning rollers are arranged symmetrically in pairs.

[0005] The guide rod is in a curved shape; in the left-right direction, for all the guide rods corresponding to the same turning roller, the rear ends are arranged in reverse order relative to the front ends.

[0006] Furthermore, among all the guide rods corresponding to the same turning roller, the upper plurality of guide rods are retracted and extended from the outside to the inside, and the lower plurality of guide rods are expanded and extended from the inside to the outside.

[0007] Furthermore, the turning roller includes a central axis and a plurality of turning discs equidistantly arranged in the axial direction of the central axis, and a guide rod extends from the gap between every two turning discs.

[0008] Furthermore, the outer edge of the flip plate has a plurality of teeth arranged in a circular array.

[0009] Furthermore, it also includes a first side seat body located at one end of the flip roller and arranged vertically, and a lower rod body located below the central axis; the extension direction of the lower rod body is parallel to the extension direction of the central axis, and one end of the lower rod body is fixed to the first side seat body, and the other end of the lower rod body is fixed with a second side seat body arranged perpendicular to the central axis; a transmission shaft is fixed on the first side seat body, and the transmission shaft is connected to the central axis through a universal joint.

[0010] Furthermore, the rear side of each guide rod is connected to an arc tube.

[0011] Beneficial effects: The crop seedling turning and drying device of the present invention has the following beneficial effects:

[0012] (1) On the basis of the existing technology, by rearranging the guide rods, the rear ends of all the guide rods corresponding to the same turning roller are arranged in reverse order relative to the front ends, so that two adjacent guide rods have an intersection in the top view direction, and all the intersections corresponding to the same turning roller are staggered. In this way, the landing posture and landing point of the crops after turning can be effectively controlled, the turning and drying effect and the laying effect can be improved, and a better seedling laying effect can be achieved;

[0013] (2) Based on the existing technology, the left and right parts of the flip roller are made into independent installation structures, which are convenient for installation on the machine, and the transmission shaft is set on one side at a high position, which is convenient for power access and not easy to be entangled in debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a top view of the structure of the crop seedling turning and drying device;

[0015] Figure 2 This is a front view of the structure of the crop seedling turning and drying device;

[0016] Figure 3 This is a side view of the structure of the crop seedling turning and drying device;

[0017] Figure 4 A structural diagram of one set of turning rollers and their corresponding guide rods;

[0018] Figure 5 This is the installation structure diagram of the arc tube;

[0019] Figure 6This is a schematic diagram of the state of crops moving along the guide rod after turning the seedlings.

[0020] In the figure: 1- flip roller; 11- flip disk; 11a- tooth portion; 12- center axis; 2- guide rod; 21- first extension section; 22- inward extension section; 23- outward extension section; 3- mounting seat; 31- first side seat body; 32- lower rod body; 33- second side seat body; 4- transmission shaft; 5- universal joint; 6- arc tube. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 1-3 The crop seedling turning and drying device shown includes two symmetrically installed turning rollers 1, which are installed at an angle. In the front-to-back direction, the two turning rollers 1 are arranged in a V-shape with the middle being low and the two ends being high; each of the turning rollers 1 has multiple guide rods 2 extending backward, and since the turning rollers 1 are installed at an angle, all the corresponding guide rods 2 are staggered in the vertical direction; the guide rods 2 extending from the two turning rollers 1 are arranged symmetrically in pairs.

[0023] The guide rod 2 is curved in shape; in the left-right direction, for all the guide rods 2 corresponding to the same flip roller 1, the arrangement order of the rear ends relative to the front ends is in reverse order, and in the left-right direction, the guide rod 2 with the front end closer to the outside is installed at a higher position, so that two adjacent guide rods 2 have an intersection in the top view direction, and all the intersections corresponding to the same flip roller 1 are staggered in the front-to-back direction and the left-to-right direction.

[0024] Among all the guide rods 2 corresponding to the same flip roller 1, the upper multiple guide rods 2 are retracted and extended from the outside to the inside, and the lower multiple guide rods 2 are expanded and extended from the inside to the outside; in this way, the above-mentioned rear end is arranged in reverse order relative to the front end, and the intersection is staggered in the front and back directions.

[0025] In the present invention, Figure 4 As shown, each flip roller 1 corresponds to seven guide rods 2. When viewed from the side to the center, the seven guide rods 2 are sequentially designated L1, L2, L3, L4, L5, L6, and L7, with the front ends of the guide rods 2 serving as the reference. L1-L7 are also arranged in sequence vertically, with all seven rods arranged with the front higher and the back lower. When viewed from the side to the center, the rear ends of the seven guide rods 2 are arranged in sequence as L7, L6, L5, L4, L3, L2, and L1. When viewed from above, these seven guide rods form six intersections, labeled a, b, c, d, e, and f. From front to back, the four upper guide rods 2 converge and extend inward, while the three lower guide rods 2 expand and extend inward.

[0026] The turning rollers 1 are arranged horizontally from above. Each guide rod 2 has a first extension 21 at its front end, extending backward in the direction of delivery. The rear end of the first extension 21 is connected to either an inward-retracting extension 22 or an outward-expanding extension 23. This arrangement allows for controlled placement of crops after being flipped and thrown from various positions on the turning roller 1, ensuring orderly placement. After being flipped and thrown, the crops move along the first extension 21 in the direction of delivery before being dispersed and guided by the inward-retracting extension 22 or the outward-expanding extension 23.

[0027] Since the guide rods 2 are arranged in such a manner that the guide rods 2 at the side of the front end are located outside the guide rods 2 at the middle of the front end, two adjacent guide rods 2 form a step structure, such as Figure 6 As shown, after flipping, the roots of the crop can be hung on the guide rods 2 corresponding to the throwing position. The guide rods 2 above the guide rod 2 to which the crop is attached can restrict the lateral movement of the crop roots, allowing the crop to move steadily in an upside-down position until the crop reaches the top-down intersection of the two guide rods 2. The upper guide rod 2 then separates the crop from the lower guide rod 2, causing it to fall. Because all intersections are staggered in the front-to-back and left-to-right directions, the landing points of the crop thrown from each throwing position are different, ensuring uniform crop distribution. Since the crop moves in an upside-down position along the guide rods 2, which gradually tilt downward, the crop can be forced to gradually fall downward in an upside-down position and fall at the intersection. After falling, the roots of the crop face upward as much as possible, achieving an excellent drying effect.

[0028] The turning roller 1 includes a central axis 12 and a plurality of turning discs 11 arranged equidistantly in the axial direction of the central axis 12. A guide rod 2 extends between each two turning discs 11. The outer edge of the turning disc 11 has a plurality of teeth 11a arranged in a circumferential array.

[0029] The crop turning and drying device also includes a mounting base 3 independently provided for each turning roller 1, the mounting base 3 including a first side seat 31 located at one end of the turning roller 1 and arranged vertically, and a lower rod 32 located below the central axis 12; the extension direction of the lower rod 32 is parallel to the extension direction of the central axis 12, and one end of the lower rod 32 is fixed to the first side seat 31, and the other end of the lower rod 32 is fixed to a second side seat 33 arranged perpendicular to the central axis 12; a transmission shaft 4 is fixed to the first side seat 31, and the transmission shaft 4 is connected to the central axis 12 via a universal joint 5. With the above structural layout, the entire crop turning and drying device is composed of two independent left and right parts. At the same time, among the side seats on both sides of the mounting base 3, the first side seat 31 is arranged vertically, and the second side seat 33 is arranged perpendicular to the central axis 12. This reduces the difficulty of structural installation of the V-shaped layout and facilitates the connection of the transmission shaft 4 to the power source.

[0030] Preferably, the rear side of each guide rod 2 is connected to an arc tube 6, and the arc tube 6 is installed around the central axis 12. Figure 5 As shown, the arc tube 6 has an angle of more than 120° with respect to the central axis 12, one end of the arc tube 6 is placed below the central axis 12 and the other end is placed above the central axis, the lower end of the arc tube 6 is fixed to the lower rod body 32, and the guide rod 2 is fixed to the upper end of the arc tube 6; the arc tube 6 bypasses the front side of the central axis 12, and the distance between the arc tube 6 and the central axis 12 gradually increases on the extension line from the lower end to the upper end of the arc tube 6.

[0031] In the above structure, the curved tube 6, on the one hand, serves as a guide. After the reversing disc 11 turns the crop, the crop can move along the curved tube 6, break away from the reversing disc 11, and continue to move backward under the action of the guide rod 2. Because the distance between the curved tube 6 and the central axis 12 gradually increases along its extension path, it can ensure that the teeth 11a are fully in contact with the crop in the early stages of the reversing disc 11's action on the crop, and gradually separate from the teeth 11a in the later stages of the reversing disc 11's action on the crop. On the other hand, because the curved tube 6 has a large wrap angle with the central axis 12, it not only increases the number of teeth 11a that can act on the crop, but also prevents the crop from entering the gap between adjacent reversing discs 11, causing entanglement and the accumulation of debris in the gap.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A crop seedling turning and drying device, comprising two symmetrically mounted turning rollers (1), wherein in the front-to-back direction, the two turning rollers (1) are arranged in a V-shape with a lower middle portion and higher ends; a plurality of guide rods (2) are extended backward from each turning roller (1); the guide rods (2) extending from the two turning rollers (1) are arranged symmetrically in pairs; and the device is characterized in that: The guide rod (2) is curved; in the left-right direction, for all the guide rods (2) corresponding to the same turning roller (1), the rear ends are arranged in reverse order relative to the front ends; Each turning roller (1) corresponds to 7 guide rods (2). In the direction from the side to the middle when viewed from above, with the front end of the guide rod (2) as the standard, the 7 guide rods (2) are L1, L2, L3, L4, L5, L6, and L7 in order; the four upper guide rods (2) are contracted and extended from the outside to the inside, and the three lower guide rods (2) are expanded and extended from the inside to the outside; in the direction of viewing from above, the seven guide rods form 6 intersection points a, b, c, d, e, and f in order; among them, the 4 intersection points a, b, c, and d are arranged in the order of d, c, b, and a from the front to the back, and in the order of a, b, c, and d from the middle to the side; for the two intersection points f and e, point f is in front of point e, and point e is closer to the side than point f; Two adjacent guide rods (2) form a step structure, and after being turned over, the root of the crop can be hung on the guide rod (2) corresponding to the throwing position thereof, and the guide rod (2) adjacent to the upper side of the guide rod (2) to which the crop is hung can restrict the side of the root of the crop, so that the crop moves forward stably in an upside-down state until the crop moves to the top-view intersection position of the two guide rods (2), and the upper guide rod (2) separates the crop from the lower guide rod (2) to cause the crop to fall.

2. The crop seedling turning and drying device according to claim 1, characterized in that: The turning roller (1) comprises a central axis (12) and a plurality of turning discs (11) arranged equidistantly in the axial direction of the central axis (12), and a guide rod (2) extends between the gaps between every two turning discs (11).

3. The crop seedling turning and drying device according to claim 2, characterized in that: The outer edge of the turning disc (11) has a plurality of teeth (11a) arranged in a circumferential array.

4. The crop seedling turning and drying device according to claim 2, characterized in that: The invention also includes a first side seat (31) located at one end of the flip roller (1) and arranged vertically, and a lower rod (32) located below the central axis (12); the extension direction of the lower rod (32) is parallel to the extension direction of the central axis (12), and one end of the lower rod (32) is fixed to the first side seat (31), and the other end of the lower rod (32) is fixed with a second side seat (33) arranged perpendicular to the central axis (12); a transmission shaft (4) is fixed on the first side seat (31), and the transmission shaft (4) is connected to the central axis (12) through a universal joint (5).

5. The crop seedling turning and drying device according to claim 1, characterized in that: The rear side of each guide rod (2) is connected to an arc-shaped tube (6).

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