A foldable electric spike removal machine for wolfberry.

Abstract

This utility model discloses a foldable electric stubble trimmer, belonging to the field of agricultural and livestock machinery. It includes a main frame with two symmetrical longitudinal beams and a main ground wheel below. A short beam is connected to the upper rear of the longitudinal beams via a rear pin and a front pin. A sub-frame is hinged to the outer side of the short beam. The sub-frame has casters below and a liftable motor frame above, with several motors arranged horizontally on the motor frame. A wire rope trimming head is installed at the lower end of the motor shaft. A generator provides power to the main frame. The sub-frame can be folded 90° and secured with a locking pin. This device has a compact structure, is portable, has high efficiency for wide-area operation, can follow contours and adjust the stubble height, reducing damage to pastures caused by trampling.

Description

Technical Field

[0001] This utility model relates to the field of agricultural and livestock machinery technology, and in particular to a folding electric wolfberry ear-removing machine. Background Technology

[0002] Wolfsbane is an important forage grass in the grasslands of northern my country, widely distributed in livestock-intensive areas such as Northeast China, Inner Mongolia, Hebei, Shanxi, northern Shaanxi, Gansu, Tibet, and Xinjiang. Its mature caryopsis has hard tips and long awns, which can easily injure the mouths and tongues of cattle and sheep, causing them to be unable to eat or even die. The sharp seeds can also pierce animal hides, resulting in significant economic losses for herders. To eliminate these hazards, the upper 1 / 3 to 1 / 4 of the spikelet on the stem must be cut before the caryopsis matures. This operation needs to balance efficient weeding with preserving usable forage, placing high demands on mechanized equipment.

[0003] Existing spike removal machines for wolfberry mainly suffer from two types of technical bottlenecks: Traction-type spike removal machines: These rely on the rear output shaft of a tractor for drive, resulting in a long transmission path (requiring multiple stages of transmission via gears and chains), leading to high energy loss, complex structure, and susceptibility to malfunctions due to transmission component jamming and wear during field operations. They also have high maintenance costs and frequent downtime, making them unsuitable for large-scale continuous operations. Suspended spike removal machines: These typically have a working width of ≤2 meters, requiring multiple back-and-forth operations, resulting in low efficiency. Furthermore, the equipment is directly suspended under the power locomotive, causing frequent tire rolling over the grassland, which can lead to soil compaction and vegetation damage, violating grassland ecological protection requirements.

[0004] Furthermore, existing equipment generally suffers from inconvenient height adjustment, making it difficult to adapt to the varying heights of wolfberry plants at different growth stages, and easily resulting in stubble cuts that are too high (leaving residual ears) or too low (wasting forage). Therefore, developing a compact, low-failure, wide-area operation, and grassland-friendly de-earing device has become an urgent need for the mechanization upgrade of grassland animal husbandry. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a foldable electric wolf needle grass trimming machine. It uses several small electric motors to drive steel wire ropes to knock off the tips of the grass. It has a simple structure, low failure rate, wide working width when unfolded, high working efficiency, and a compact structure after folding, making it convenient for road transport.

[0006] This utility model is achieved through the following technical solution: a folding electric wolf needle grass trimming machine, which includes a main frame, the main frame including two symmetrical longitudinal beams, two symmetrical main wheels installed under the main frame, a short beam set at the upper rear of each of the two longitudinal beams, and two corresponding pin holes on both the longitudinal beams and the short beams. The short beams are connected to the longitudinal beams by a rear pin and a front pin passing through the pin holes; a sub-frame is hinged to the outer side of the two short beams, a caster wheel is set under the sub-frame, a liftable motor frame is set on the sub-frame, and several motors are arranged horizontally at equal intervals on the motor frame. The motor shaft extends vertically downwards, and a steel wire rope trimming head is installed at the lower end of the motor shaft.

[0007] Preferably, the sub-frame includes a front crossbeam and a rear crossbeam, with multiple pairs of corresponding vertical columns fixedly connected to both the front and rear crossbeams. The vertical columns are provided with multiple vertically arranged positioning holes. The front side of the motor frame is connected to multiple extension rods corresponding to the vertical columns. Each extension rod is provided with two sleeves that fit onto the vertical columns. The sleeves are provided with positioning holes. Positioning pins that pass through the sleeves and the positioning holes on the vertical columns install the motor frame at an appropriate height.

[0008] Preferably, a locking pin hole is provided at the front of the longitudinal beam, and a corresponding locking pin hole is provided on the front crossbeam. The subframe is rotated 90° forward with the front pin shaft as the axis, so that the longitudinal beam and the front crossbeam overlap vertically, and the locking pin is inserted into the locking pin hole of the longitudinal beam and the front crossbeam to achieve fixation.

[0009] Preferably, it also includes a generator that provides power to the motor. The generator is mounted on a fixed bracket on the upper part of the main frame and is connected to the motor via a cable to provide power.

[0010] Preferably, a flexible connecting rod, chain, or wire rope is connected between the front of the longitudinal beam and the outer side of the front crossbeam. The flexible connecting rod is then collected during folded transport.

[0011] The beneficial effects of this utility model are as follows:

[0012] (1) Simplified structure and low failure rate: The steel wire rope is directly driven by a small motor, eliminating the long-distance transmission mechanism such as gears and chains of traditional traction equipment. The number of mechanical parts is reduced by more than 50%, eliminating the potential for transmission jamming, wear and other faults, reducing the failure rate by 60%, and significantly reducing maintenance costs. It is suitable for large-scale continuous operation.

[0013] (2) High-efficiency wide-area operation: After the left and right auxiliary frames are unfolded, a wide working surface is formed. The width of a single operation can reach 5-8 meters (3-4 times that of the suspended equipment), reducing the number of round trips and increasing the working efficiency by more than 50%, significantly shortening the time for removing spikes from wolf needle grass.

[0014] (3) Foldable and portable with low transportation cost: The sub-frame can be folded 90° through the locking pin and pin shaft structure. After folding, the width of the whole machine is ≤2 meters, which meets the road transportation standards. The compact size makes it easy to transfer in the field and transport over long distances, saving more than 30% of transportation space and cost.

[0015] (4) Grassland ecological protection: The main ground wheel and universal wheel combination support structure is adopted, and the power locomotive does not need to directly roll the working area, avoiding soil compaction and vegetation damage, which meets the requirements of grassland ecological protection and reduces the grassland rolling area by more than 80% compared with traditional suspended equipment.

[0016] (5) Terrain adaptability and precise adjustment: The sub-frame and short beam are hinged together, which can swing up and down with the terrain to achieve contour operation and adapt to uneven grasslands with a slope of ≤15°; the motor frame adjusts the height of the vertical column through the positioning pin (adjustment range 0.3-1 meter) to accurately match the height of wolf needle grass at different growth stages (50-120 cm), with a stubble error of ≤2 cm, avoiding waste of forage or ear residue.

[0017] (6) Power autonomy and flexible adaptation: The main frame integrates a generator, which can be independently powered without relying on the power output of the tractor. It can be adapted to various models of tractors (power ≥ 50 horsepower). When working in the field, the cable length can cover the unfolded width of the sub-frame, and the power supply stability is strong. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention in its working state;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention in its folded transportation state;

[0020] Figure 3 This is a partial structural diagram of the connection between the main frame and the sub-frame of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the sub-frame, motor frame, and short beam of this utility model.

[0022] In the diagram, 1 is the main frame, 2 is the longitudinal beam, 3 is the main ground wheel, 4 is the short beam, 5 is the pin hole, 6 is the rear pin, 7 is the front pin, 8 is the auxiliary frame, 9 is the caster wheel, 10 is the motor frame, 11 is the motor, 12 is the wire rope trimming head, 13 is the front crossbeam, 14 is the rear crossbeam, 15 is the vertical column, 16 is the positioning hole, 17 is the extension rod, 18 is the sleeve, 19 is the positioning pin, 20 is the locking pin hole, 21 is the locking pin, 22 is the generator, and 23 is the iron chain. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, a folding electric wolfberry shearing machine includes a main frame 1, which includes two symmetrical longitudinal beams 2. Two symmetrical main wheels 3 are installed under the main frame 1. Short beams 4 are provided on the upper rear part of both longitudinal beams 2. Two corresponding pin holes 5 are provided on both longitudinal beams 2 and short beams 4. The short beams 4 are connected to the longitudinal beams 2 through rear pins 6 and front pins 7 passing through the pin holes 5. A sub-frame 8 is hinged to the outer side of the two short beams 4. Universal wheels 9 are provided under the sub-frame 8. A liftable motor frame 10 is provided on the sub-frame 8. Six motors 11 are arranged horizontally at equal intervals on each motor frame 10. The shafts of the motors 11 extend vertically downwards, and steel wire rope shearing heads 12 are installed at the lower end of the shafts of the motors 11. The sub-frame 8 includes a front crossbeam 13 and a rear crossbeam 14. Three pairs of corresponding vertical columns 15 are fixedly connected to both the front and rear crossbeams 13 and 14. Each vertical column 15 has ten vertically arranged positioning holes 16. The front of the motor frame 10 is connected to three extension rods 17 corresponding to the vertical columns 15. Each extension rod 17 has two sleeves 18 that fit onto the vertical columns 15. Positioning holes 16 are provided on the sleeves 18 and the positioning pins 19 passing through the sleeves 18 and the positioning holes 16 on the vertical columns 15, thus mounting the motor frame 10 at an appropriate height. A locking pin hole 20 is provided at the front of the longitudinal beam 2. A corresponding locking pin hole 20 is provided on the front crossbeam 13. The sub-frame 8 rotates forward 90° around the front pin shaft 7, causing the longitudinal beam 2 and the front crossbeam 13 to overlap vertically. The longitudinal beam 2 and the front crossbeam 13 are then fixed by inserting locking pins 21 into the locking pin holes 20 of the longitudinal beam 2 and the front crossbeam 13. It also includes a generator 22 installed on the upper part of the main frame 1 to provide power to the motor 11. The generator 22 is connected to the motor 11 via a cable to supply power. A chain 23 is connected between the front of the longitudinal beam 2 and the outer side of the front crossbeam 13 to collect the flexible connector when in the folded transport state.

[0025] The working principle and usage of this utility model are explained with reference to the accompanying drawings:

[0026] (1) Preparation for the assignment:

[0027] Adjust the height of the motor frame 10 according to the height of the wolf needle grass by using the positioning pin 19, so that the height of the wire rope beating head 12 from the ground is 1 / 3 to 1 / 4 of the height of the grass stem (to avoid cutting too high or too low).

[0028] Extend the auxiliary frame 8 to a horizontal position and secure it with iron chain 23 to ensure maximum working width (e.g., the total width after unfolding can reach 6-10 meters, significantly improving the coverage of a single operation).

[0029] Start generator 22, motor 11 drives wire rope grass cutting head 12 to rotate at high speed (about 2000-3000 r / min), forming a rotating cutting surface;

[0030] (2) Field operations:

[0031] The main frame 1 is pulled forward by a tractor or other power equipment. The main ground wheel 3 and the universal wheel 9 support the whole machine. The auxiliary frame 8 swings up and down with the terrain (contour function) to ensure that the hay head is always close to the height of the hay ears.

[0032] The steel wire rope threshing head 12 uses centrifugal force to strike the grass spikes, removing the mature parts of the caryopsis and preserving the usable forage in the lower and middle parts of the stalks. The operation eliminates the need for traditional gear and chain drives, reducing energy loss and potential points of failure.

[0033] (3) Folding transportation:

[0034] After the operation is completed, disconnect the iron chain 23 and rotate the auxiliary frame 8 forward 90° with the front pin 7 as the axis until the longitudinal beam 2 and the front cross beam 13 coincide.

[0035] Insert the locking pin 21 to secure the folded state, and fold up the casters 9 (or keep them in contact with the ground). The whole machine has a compact structure, making it easy to move to the next site.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A folding electric spike removal machine for wolfberry, comprising a main frame (1), characterized in that: The main frame (1) includes two symmetrical longitudinal beams (2). Symmetrical main wheels (3) are installed below the main frame (1). Short beams (4) are provided on the upper rear part of both longitudinal beams (2). Corresponding pin holes (5) are provided on both the longitudinal beams (2) and the short beams (4). The short beams (4) are connected to the longitudinal beams (2) through the rear pin (6) and the front pin (7) that pass through the pin holes (5). The two short beams (4) are hinged to the outer side of the auxiliary frame (8). Universal wheels (9) are provided below the auxiliary frame (8). A liftable motor frame (10) is provided on the auxiliary frame (8). Several motors (11) are arranged horizontally at equal intervals on the motor frame (10). The shaft of the motor (11) extends vertically downward, and a steel wire rope grass-beating head (12) is installed at its lower end.

2. The folding electric spike removal machine for wolfberry as described in claim 1, characterized in that: The subframe (8) includes a front crossbeam (13) and a rear crossbeam (14). Both the front crossbeam (13) and the rear crossbeam (14) are fixedly connected to a number of pairs of corresponding vertical columns (15). The vertical columns (15) are provided with a number of vertically arranged positioning holes (16). The front side of the motor frame (10) is connected to a number of extension rods (17) corresponding to the vertical columns (15). Each extension rod (17) is provided with a sleeve (18) that fits onto the vertical column (15). The sleeve (18) is provided with a positioning hole (16). A positioning pin (19) is inserted into the positioning hole (16) of the sleeve (18) and the vertical column (15) to fix the motor frame (10) at an appropriate height.

3. The folding electric spikelet remover for wolfberry as described in claim 1, characterized in that: The longitudinal beam (2) is provided with a locking pin hole (20) at the front. The front crossbeam (13) is provided with a locking pin hole (20) corresponding to the locking pin hole (20) of the longitudinal beam (2). The subframe (8) rotates forward 90° with the front pin shaft (7) as the axis, so that the longitudinal beam (2) and the front crossbeam (13) overlap vertically and are fixed by inserting the locking pin (21) into the locking pin hole (20).

4. The folding electric spikelet remover for wolfberry as described in claim 1, characterized in that: It also includes a generator (22), which is mounted on the upper part of the main frame (1) and connected to the motor (11) via a cable for power supply.

5. The folding electric spikelet remover for wolfberry as described in claim 1, characterized in that: The front part of the longitudinal beam (2) is connected to the outer side of the front crossbeam (13) by a flexible connector, which is a tie rod, wire rope or iron chain (23) that can be folded up for transportation.

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