KR20200048017A - Bulbous plant harvesting apparatus for multi-purpose agriculture electronic vehicle - Google Patents

Abstract

The present invention relates to a bulbous plant harvesting apparatus for a multi-functional agricultural electromotive vehicle and, more specifically, to a bulbous plant harvesting apparatus for a multi-functional agricultural electromotive vehicle, which is connected to the multi-functional agricultural electromotive vehicle outputting power of a power motor to be lifted and lowered so the height of the bulbous plant harvesting apparatus can be adjusted, and is operated by driving of the power motor. The bulbous plant harvesting apparatus for a multi-functional agricultural electromotive vehicle according to the present invention, which is towed by being connected to the multi-functional agricultural electromotive vehicle making a caterpillar track receive a rotational force of a driving motor to drive the vehicle body, comprises: a lifting and lowering connection means provided at the front side or the rear side of the multi-functional agricultural electromotive vehicle; a bulb digger for digging the bulbous plant; a transferring conveyor for transferring the dug bulb; and a transportation trailer towed by being connected to the bulb digger to stack the bulb transferred by the transferring conveyor.

Description

BULBOUS PLANT HARVESTING APPARATUS FOR MULTI-PURPOSE AGRICULTURE ELECTRONIC VEHICLE}

The present invention relates to a bulb crop device for a multi-functional agricultural electric vehicle, and more specifically, to a multi-functional agricultural electric vehicle that outputs the power of the power motor, is connected to a multi-functional agricultural electric vehicle so that the height can be adjusted while being operated by driving the power motor. The present invention relates to a bulb crop harvesting device for a vehicle.

In general, electric vehicles are actively being developed as a new means of transportation that effectively utilizes surplus power in connection with energy conservation as well as solving pollution problems such as noise and exhaust gases of automobiles. Recently, Korean Patent Registration No. 10-1324012 (Agricultural electric vehicles, 2013.10.25) or Republic of Korea Patent Publication No. 10-2014-0136072 (agricultural electric vehicles, 2014.11.28), such as electric vehicles or electric tractors are being developed for agriculture.

However, in the case of a conventional agricultural electric vehicle, the development of an electric vehicle for farming and harvesting is still insufficient due to the development and development of transportation and loading.

On the other hand, bulbous crops are underground crops that grow in the ground. Potatoes, sweet potatoes, onions, garlic, carrots, etc. have been harvested manually by manpower, but must be harvested by digging the ground manually by manpower. Therefore, the consumption of time and expenses is large, which is not only unproductive, but also uneconomical.

Recently, in order to solve the above-mentioned conventional problems, the Republic of Korea Registered Patent No. 10-0868277 (the bulb crop harvester, 2008.11.05) or the Republic of Korea Utility Model No. 20-0472380 (excavator for harvesting the root crop, 2014.04.16) As shown in the above, by harvesting bulbous crops mechanically, bulbous crop harvesting devices have been proposed and widely used to increase productivity and minimize the consumption of manpower, thereby enabling economical harvesting.

However, the conventional bulb crop harvesting devices as described above are mostly connected to the rear of the tractor for traction and operated by receiving power from the tractor to harvest the crop.

Republic of Korea Registered Patent No. 10-1324012 (2013.10.25): electric vehicle for agriculture Republic of Korea Patent Publication No. 10-2014-0136072 (2014.11.28): electric vehicle for agriculture Republic of Korea Registered Patent No. 10-0868277 (2008.11.05): bulb crop harvester Republic of Korea Utility Model No. 20-0472380 (2014.04.16): Excavator for harvesting bulbous crops

The present invention was devised by recognizing the above points, and an object of the present invention is to connect a multi-function agricultural electric vehicle that outputs the power of a power motor so as to be able to elevate, and to be able to adjust the height while operating by driving the power motor. It is intended to provide a bulb crop harvesting device for an electric vehicle.

In order to achieve the above object, the power transmission device for a multi-functional agricultural electric vehicle according to the present invention is a bulbous crop for a multi-functional agricultural electric vehicle that is driven by a caterpillar connected to a multi-functional agricultural electric vehicle that drives a vehicle body by receiving the rotational force of a driving motor. In the harvesting device, the front or rear of the multi-functional agricultural electric vehicle is provided with a lifting connecting means, a bulb mining machine for excavating bulbous crops, a transport conveyor for transporting mined bulbs, and transported by the transport conveyor It is characterized in that it is configured to be equipped with a transport trailer to be connected to the bulb mining machine to load the bulb.

In addition, in the multi-functional agricultural electric vehicle bulb crop harvesting device according to the present invention, the bulb mining machine is provided between the support plates provided on both sides of the width direction so that the bottom surface of the sliding portion provided at the bottom slides against the ground, and between the support plates. An excavation blade provided downwardly inclined in front of the driving direction, a plurality of soil removal rollers arranged at the rear of the excavation blade and rotatably supported at both ends of the support plate and the soil removal roller so as to rotate It characterized in that it comprises a power transmission unit for transmitting the power output from the vehicle.

In addition, the bulb crop harvesting device for a multi-functional agricultural electric vehicle according to the present invention is characterized in that a blade portion protruding outward is formed on the outer circumference of the soil removal roller.

In addition, the multi-functional agricultural electric vehicle bulb crop harvesting device according to the present invention is provided with a vehicle power transmission device provided to transmit the power of the drive motor to the caterpillar in the multifunctional agricultural electric vehicle, wherein the vehicle power transmission device, the A drive sprocket rotatably mounted on a track support frame provided on each side of each of the vehicle bodies in engagement with a caterpillar chain, and located between the drive motor and the drive sprocket, one end connected to the rotation shaft of the drive motor, the other end Is provided with a universal joint connected to the drive sprocket, a spline boss is formed at each of the other ends of the drive sprocket and the universal joint, and the other ends of the drive sprocket and the universal joint are connected to each other by inserting a spline shaft into the spline boss. Characterized by being do.

In addition, in the multi-functional agricultural electric vehicle bulb crop harvesting device according to the present invention, a spline boss is formed at one end of the universal joint, a spline portion is formed at a distal end of the rotation shaft of the drive motor, and the rotation shaft of the drive motor and the universal joint The other end of the drive shaft is characterized in that it is connected to each other by inserting the spline boss of the universal joint to the spline boss of the universal joint.

In addition, in the multi-functional agricultural electric vehicle bulb crop harvesting device according to the present invention, bearing shafts are formed to protrude on both sides of the drive sprocket, and the drive sprockets are driven sprockets on each of a pair of bearing blocks coupled to the track support frame. It characterized in that the bearing shaft of the shaft is rotatably mounted to the track support frame.

In addition, in the multi-functional agricultural electric vehicle bulb crop harvesting device according to the present invention, each of the bearing blocks has a bearing insert hole formed in the center, a block body coupled to the track support frame, and a thrust inserted into the bearing insert hole A bearing and a bearing support cap coupled to the block body to support the outer ring of the thrust bearing by inserting a support end at one side of the bearing insertion hole into the bearing insertion hole are included.

In addition, the bulb crop harvesting device for a multi-purpose agricultural electric vehicle according to the present invention is provided with an orbital tensioning device that maintains an infinite orbital tension at a front end or a rear end of the orbital support frame, wherein the orbital tensioning device comprises: It is characterized in that it is configured to be provided with an orbital support roller rotatably mounted to the hydraulic cylinder to support the caterpillar, and a hydraulic cylinder mounted to be stretched forward and backward in front and rear ends.

By the above configuration, the bulb crop harvesting device for a multi-functional agricultural electric vehicle according to the present invention is connected to a multi-functional agricultural electric vehicle that outputs the power of the power motor so that it can be elevated and adjusted, and it is possible to adjust the height while operating by driving the power motor. Have

1 is a side view showing a state in which a bulb crop harvesting device for a multifunctional agricultural electric vehicle according to a temporary example of the present invention is connected to a multifunctional agricultural electric vehicle.
2 is a side view showing a multifunctional agricultural electric vehicle to which a bulb crop harvesting device for a multifunctional agricultural electric vehicle according to an embodiment of the present invention is connected
3 is a plan view showing a multifunctional agricultural electric vehicle to which a bulb crop harvesting device for a multifunctional agricultural electric vehicle according to an embodiment of the present invention is connected
Figure 4 is a front view showing a power transmission device provided in a multi-functional agricultural electric vehicle to which a bulb crop harvesting device for a multi-functional agricultural electric vehicle according to an embodiment of the present invention is connected
Figure 5 is a cross-sectional view showing in detail a portion of the power transmission device provided in the multi-functional agricultural electric vehicle is connected to a multi-functional agricultural electric vehicle bulb crop harvesting device according to an embodiment of the present invention
Figure 6 is a side view conceptually showing the track tension device and its operation of the multifunctional agricultural electric vehicle to which the bulb crop harvesting device for the multifunctional agricultural electric vehicle according to an embodiment of the present invention is connected.
7 is a side view showing a bulb crop harvesting device for a multi-functional agricultural electric vehicle according to an embodiment of the present invention

Hereinafter, a bulb crop harvesting device for a multi-functional agricultural electric vehicle according to the present invention will be described in more detail with reference to an embodiment shown in the drawings.

1 is a side view showing a state where a multi-functional agricultural electric vehicle bulb crop harvesting device according to a temporary example of the present invention is connected to a multi-functional agricultural electric vehicle, and FIG. 2 is a multi-functional agricultural electric vehicle bulb crop according to an embodiment of the present invention A side view showing a multifunctional agricultural electric vehicle to which the harvesting device is connected, and FIG. 3 is a plan view showing a multifunctional agricultural electric vehicle to which a bulb crop harvesting device for a multifunctional agricultural electric vehicle according to an embodiment of the present invention is connected, and FIG. 4 A front view showing a power transmission device provided in a multifunctional agricultural electric vehicle to which a bulb crop harvesting device for a multifunctional agricultural electric vehicle according to an embodiment of the present invention is connected, and FIG. 5 shows a bulb for a multifunctional agricultural electric vehicle according to an embodiment of the present invention Power transmission device provided in the multi-functional agricultural electric vehicle to which the crop harvesting device is connected A cross-sectional view showing a part in detail, Figure 6 is a side view conceptually showing the track tension device and its operation of a multi-functional agricultural electric vehicle to which a bulb crop harvesting device for a multi-functional agricultural electric vehicle according to an embodiment of the present invention is connected, 7 is a side view showing a bulb crop harvesting device for a multi-functional agricultural electric vehicle according to an embodiment of the present invention.

The bulb crop harvesting device 30 for a multi-functional agricultural electric vehicle according to the present invention is movably connected up and down by a lifting connecting means 6 to a multi-functional agricultural electric vehicle 1, and towed to the multi-functional agricultural electric vehicle 1 It is characterized in that it is operated by receiving the output of a power motor (not shown in the drawing) from the multi-functional agricultural electric vehicle 1.

The multifunctional agricultural electric vehicle 1 to which the bulb crop harvesting device 30 for a multifunctional agricultural electric vehicle according to the present invention is connected is provided with a power transmission device 10 and a track tensioning device 20.

In the power transmission device 10, the power of the driving motor 11 is transferred to the caterpillar 5 in the multi-functional agricultural electric vehicle 1 in which the caterpillar 5 receives the rotational force of the driving motor 11 to drive the vehicle body. It is a device equipped to deliver.

The multi-functional agricultural electric vehicle 1 is configured to be capable of driving with a car body having a substantially rectangular outline and a caterpillar 5 mounted on the left and right sides of the car body.

Referring to the drawings, the vehicle body frame of the multi-functional agricultural electric vehicle 1 is connected to each other and the vehicle body frame 2 is disposed to cross the vertical and horizontal structures are formed, the vehicle body frame 2 is connected to the front and rear directions on both sides of the connected structure As long as the track support frame 3 is disposed, the vehicle body frame 2 has a structure attached to both sides of the connected structure.

The plurality of track support rollers 4 for supporting the caterpillar 5 are arranged in a circle along the caterpillar 5 inside the caterpillar 5 so as to be rotatable on the track support frame 3 It is mounted. The caterpillar 50 is supported by the orbit support roller 4 and rotated.

On the other hand, a drive sprocket 15 coupled to a chain (not shown in the figure) of the caterpillar 5 to transmit a rotational force for rotationally driving the caterpillar 5 to the rear end of the track support frame 3 ) Is mounted, and a track tensioning device 20 is installed at the front end of the track support frame 3 to keep the caterpillar 5 tightly maintained. A part of the plurality of track support rollers 4 is mounted on the track tensioning device 20 to support the track 5 so that tension is maintained in the track 5.

Referring to the drawings, the multi-functional agricultural electric vehicle power transmission device 10 includes a drive motor 11, a brake disc 12, a universal joint 13, a spline shaft 14, a drive sprocket 15 and a bearing block ( 16) is provided and configured.

The driving motor 11 is configured to generate a rotational force for driving the multi-function agricultural electric vehicle 1, and the rotational force generated is to rotate the caterpillar 5. In the drawing, the driving motor 11 is shown in an embodiment provided with one corresponding to each of the left and right caterpillars 5 in the rear position of the vehicle body, respectively.

The brake disk 12 is coupled to the rotating shaft 111 of the drive motor 11, and a spline portion for engaging the spline boss 131 of the universal joint 13 at the distal end of the rotating shaft 111. 112 is formed.

The rotation shaft 111 of the drive motor 11 and the universal joint 13 are connected to each other by inserting the rotation shaft spline portion 112 of the drive motor 11 into the spline boss 131 of the universal joint 13. .

The brake disk 12 is to configure a brake device for braking of a vehicle together with a brake block (not shown in the figure). In the present invention, the brake disk 12 is a rotating shaft 111 of the drive motor 11 ).

The universal joint 13 is interposed between the drive motors 11 and the drive sprockets 15 to connect them. That is, the universal joint 13 is located between the drive motor 11 and the drive sprocket 15, one end is connected to the rotation shaft 111 of the drive motor 11, the other end is the drive sprocket 15 Is connected to. As described above, the universal joint 13 connecting the drive motor 11 and the drive sprocket 15 is applied to the shaft connecting the drive motor 11 and the drive sprocket 15 even when a torsion occurs in the vehicle body. It is to absorb bending shock.

Particularly, the present invention is composed of a spline joint structure in which the connection between the universal joint 13 and the rotating shaft 111 of the drive motor 11 and the connection between the universal joint 13 and the drive sprocket 15 are formed. It is characterized by being configured to have a structure that is easily decomposed. In addition, since the universal joint 13 connected by a spline joint structure and the rotation shaft 111 of the drive motor 11, as well as between the universal joint 13 and the drive sprocket 15, is a structure capable of relatively sliding in the axial direction. Even if an impact is applied in the axial direction, the impact is absorbed by sliding.

For the spline joint structure, spline shafts 131 and 132 are formed at both ends of the universal joint 13 to engage and engage a spline shaft. One end of the universal joint 13 is inserted into the spline portion 112 formed at the end of the rotation shaft 111 of the drive motor 11 in the spline boss 131 formed at one end thereof, the rotation axis of the drive motor 11 ( 111). In addition, the other end of the universal joint 13 is a spline shaft 132 connected to the drive sprocket 15, the other end of which is inserted into the spline boss 151 of the drive sprocket 15 in the spline boss 132 formed on the other end ( One end of 14) is inserted and connected to the drive sprocket 15.

The spline shaft 14 is a shaft member for connecting the universal joint 13 and the drive sprocket 15, the spline boss 132 formed on the other end of the universal joint 13 on the outer surface and the drive sprocket 15 ) Has a shape in which a spline for engaging the spline boss 151 formed in) is formed. The drive sprocket 15 and the other end of the universal joint 13 are connected to each other by inserting a spline shaft 14 into each spline boss 132,151.

Since the universal joint 13 and the driving sprocket 15 have a structure connected to each other by the spline shaft 14, the universal joint 13 and the driving sprocket 15 are relatively movable in the axial direction. It is possible to absorb an axial shock.

The drive sprocket 15 is configured to rotate the caterpillar 5 by receiving the rotational force of the drive motor 11. The drive sprocket 15 is rotatably mounted on the track support frame 3 provided on each side of the vehicle body so as to mesh with the chain of the caterpillar 5. Referring to the drawings, a bearing block 16 is coupled to a rear end of the track support frame 3, and the drive sprocket 15 is axially supported by the bearing block 16 and rotatably installed.

To support the shaft of the drive sprocket 15, bearing shafts 152a and 152b are formed to protrude on both sides of the drive sprocket 15, penetrate the center of the bearing shafts 152a and 152b, and spline shaft 14 ) Is inserted to form a spline boss 151 for coupling. In the drive sprocket 15, bearing shafts 152a and 152b of the drive sprocket 15 are axially supported on each of the pair of bearing blocks 16 coupled to the track support frame 3, and the track support frame ( It is rotatably mounted on 3). In addition, the spline boss 151 of the drive sprocket 15 has one end inserted into the spline boss 132 formed at the other end of the universal joint 13 and the other end of the spline shaft 14 coupled thereto is inserted and coupled. do.

The bearing block 16 is configured to rotationally support the drive sprocket 15. That is, bearing shafts 152a and 152b protrude from both sides of the driving sprocket 15, and the driving sprocket 15 is a pair of bearing blocks 16 coupled to the track support frame 3, respectively. The bearing shafts 152a and 152b of the drive sprocket 15 are axially supported to be rotatably mounted on the track support frame 3.

Referring to the drawings, the bearing block 16 has a structure provided with a block body 161, a thrust bearing 162, and bearing support caps 163,164.

The block body 161 is a structure for being coupled to the track support frame 3 and the thrust bearing 162 to be coupled. In the upper body block body 161, a bearing insertion hole 161a is formed in which the outer ring of the thrust bearing 162 is pressed and coupled.

The thrust bearing 162 is a configuration for the drive sprocket 15 to be rotationally supported, and the outer ring is press-fitted into the bearing insertion hole 161a of the block body 161, and the drive sprocket 15 is an inner ring. The bearing shafts 152a and 152b are press-fit and coupled. As described above, the multi-functional agricultural electric vehicle 1 not only has a torsional impact on the vehicle body due to the driving environment of the rough terrain, but also repeatedly applies an axial impact to the drive sprocket 15 through the caterpillar 5. , This leads to an axial impact being applied between the drive sprocket 15 and the bearing block 16. The present invention is provided with bearing blocks 16 on both sides of the drive sprocket 15 to withstand such an axial impact, and each of the bearing blocks 16 is equipped with a thrust bearing 162 suitable for axial load. It has a structure. In addition, the thrust bearing 162 has a structure coupled to the pair of bearing blocks 16 in opposite directions so as to have resistance to axial impacts in opposite directions.

The bearing support caps 163 and 164 are configured to support the outer ring of the thrust bearing 162 press-fitted into the bearing insertion hole 161a of the block body 161 so as not to deviate from the bearing insertion hole 161a. . Referring to the drawings, the bearing support caps 163 and 164 are formed with protruding support ends 163a and 163b inserted into the bearing insertion hole 161a to support the bearing in the state where the outer ring of the thrust bearing 162 is supported. Located on one side of the insertion hole (161a) is coupled to the block body (161). The bearing blocks 16 are located on both sides of the drive sprocket 15, and in the case of a bearing block 16 disposed between the drive sprocket 15 and the universal joint 13, the bearing support cap A through hole 163a for passing the shaft is formed at 163.

The track tensioning device 20 has a constant external force to the track 5 so that the track 5 supported by the track support roller 4 provided in the track support frame 3 is pulled tightly and the tension is maintained. It is a configuration for adding. Referring to the drawings, the track tensioning device 20 is configured to be provided with a hydraulic cylinder 21 and a roller mounting bracket 22 is installed in the front end of the track support frame (3).

The hydraulic cylinder 21 is configured to form a force in a direction T in which the caterpillar 5 is pulled taut by the pressure of hydraulic oil. Referring to the drawings, the hydraulic cylinder 21 is inserted into the cylinder case 211 coupled to the front end of the track support frame 3, and the cylinder case 211 to emerge from the cylinder case 211 It consists of a cylinder rod (212). When hydraulic oil is injected into the cylinder case 211, the cylinder rod 212 advances forward with the pressure of the hydraulic oil, thereby applying a force in a direction T in which the caterpillar 5 is pulled tight. When the caterpillar 5 is to be separated, when the hydraulic oil filled in the cylinder case 211 is discharged, the cylinder rod 212 is reversed, and accordingly, the caterpillar 5 is loosened, and removal from the orbital support roller 4 is performed. It becomes possible.

The roller mounting bracket 22 is configured to provide a structure for the track support roller 4 for supporting the caterpillar 5 to be rotationally supported. Referring to the drawings, the roller mounting bracket 22 is coupled to the front end of the cylinder rod 212, and has a structure in which the track support roller 4 is rotatably mounted above and below it.

The bulb crop harvesting device 30 is for harvesting by harvesting bulbous crops cultivated in the ground, and is composed of a bulb miner 31, a transport conveyor 32, and a transport trailer 33.

Referring to the drawings, the bulb mining machine 31, the transport conveyor 32, and the transport trailer 33 of the bulb crop harvesting device 30 are connected in order to be hung on the multifunctional agricultural electric vehicle 1 .

The bulb mining machine 3 is a device that is connected to the multifunctional agricultural electric vehicle 1 and is pulled by the multifunctional agricultural electric vehicle 1 to mine and remove the dirt by driving the bulb P while driving. Referring to FIGS. 1 and 7 in which the bulb miner 31 is illustrated, the bulb miner 31 includes support plates 311 provided on both sides in the width direction so that the bottom faces down against the ground and slides. Between the support plates 311, the excavation blade 312 is provided to be inclined downward in front of the driving direction M, and both ends are rotated on the support plate 311 to be rotated by being arranged behind the excavation blade 312. It comprises a plurality of soil removal rollers 313 supported, and a power transmission unit 314 for transmitting power output from the power motor of the multi-functional agricultural electric vehicle 1 so that the soil removal rollers 313 are rotated. do. The power transmission unit 314 includes a connection joint 314a connected to a power motor of the multi-functional agricultural electric vehicle 1, and a gearbox 314b that decelerates rotation and changes direction input from the connection joint 314a. ), A drive chain 314c connected to transfer the output of the gearbox 314b to the digging blade 313, and a connecting chain 314d connecting them so that a plurality of digging blades 313 rotate at the same time, A transmission chain 314e for transmitting the rotational force transmitted by the electric chain 314d to the transfer conveyor 32 is provided.

The lower portion of the support plate 311 of the bulb mining machine 31 is provided with a sliding portion so as to make contact with the ground of the arable land S so that the bulb of the bulb mining machine 31 is made.

The bulb mining machine 31 configured as described above is connected to the multifunctional agricultural electric vehicle 1 so as to be vertically elevated by the elevating connecting means 6 of the multifunctional agricultural electric vehicle 1, and the multifunctional agricultural electric vehicle (1) towed by. The elevating connecting means 6 for connecting the bulb mining machine 31 to the multifunctional agricultural electric vehicle 1 is a connecting link portion to which the connecting portion 315 provided in front of the bulb mining machine 31 is connected ( 6a) and a lifting cylinder 6b for operating in a direction in which the bulb mining machine 31 connected to the connecting link portion 6a is lifted and lowered is provided. The connecting link portion 6a is formed in a four-section link structure, and the bulb mining machine 31 connected to the connecting link portion 6a is connected to the multi-functional agricultural electric vehicle 1 so as to be able to move up and down, and the multi-function When the lifting cylinder 6b is extended by hydraulic power supplied from a hydraulic unit (not shown in the drawing) provided in the agricultural electric vehicle 1, a bulb mining machine 31 connected to the connecting link portion 6a When it is lifted upward, and the lifting cylinder 6b is reduced, the bulb mining machine 31 is lowered downward.

The bulb mining machine 31 removes the soil arranged at the rear by mining the bulb P while the excavation blade 312 digs the ground of the arable land S as it is towed by the multifunctional agricultural electric vehicle 1 It is sent to the roller 313. The bulb P introduced into the upper portion of the dirt removing roller 313 is moved backward by the rotation of the dirt removing roller 313, so that dirt is removed and falls into a gap between the dirt removing rollers 313. The protruding blade portion 313a is formed on the outer circumference of the soil removal roller 313 so that smooth removal of the soil and smooth movement of the bulb P are performed, and of the bulb P rolling over the soil removal roller 313 The dirt on the surface can be scraped off.

The transport conveyor 32 is a device that is connected to the rear of the bulb miner 31 and transports the bulb P mined in the bulb miner 31 to the transport trailer 33. A transport trailer 33 for transport is connected and towed to the rear of the transport conveyor 32.

The transport conveyor 33 is a device connected to the rear of the transport conveyor 32 so as to load and transport the bulb P transferred by the transport conveyor 32.

The drawing and the bulb crop harvesting device for a multi-functional agricultural electric vehicle described above are only one embodiment for carrying out the present invention and should not be interpreted as limiting the technical spirit of the present invention. The protection scope of the present invention is defined only by the matters described in the following claims, and the improved and modified embodiments without departing from the gist of the present invention are apparent to those skilled in the art to which the present invention pertains. It will be said that it belongs to the protection scope of the present invention.

1 Multi-functional agricultural electric vehicle
2 body frame
3 track support frame
4 track support roller
5 caterpillar
6 Elevator connection means
6a connection link
6b lifting cylinder
10 Power transmission
11 Drive motor
111 axis of rotation
112 spline section
12 brake discs
13 Universal joint
131,132 spline boss
14 spline shaft
15 drive sprocket
151 spline boss
152a, 152b bearing shaft
16 bearing blocks
161 block
161a bearing insertion hole
162 thrust bearing
163,164 bearing support cap
163a, 164a support
163b through hole
20 track tension device
21 hydraulic cylinder
211 cylinder case
212 cylinder rod
22 Roller mounting bracket
30 bulb crop harvesting device
31 bulb mining machine
311 support plate
312 digging blades
313 dirt removal roller
313a blade
314 Power Transmission
315 connection
32 Conveyor
33 haul trailers

Claims (3)

In the bulb crop harvesting device for a multi-functional agricultural electric vehicle to be connected and towed by a caterpillar is connected to a multi-functional agricultural electric vehicle to drive the vehicle body by receiving the rotational force of the drive motor,
The multi-function agricultural electric vehicle is provided with a lifting connecting means in the front or rear,
A bulb mining machine for excavating bulbous crops,
A transport conveyor for transporting mined bulbs,
A multi-functional agricultural electric vehicle bulb crop harvesting device comprising a transport trailer connected to the bulb miner and towed to load the bulbs transferred by the transfer conveyor. According to claim 1,
The bulb mining machine includes support plates provided on both sides in the width direction so that the bottom surface of the sliding portion provided at the bottom faces against the ground and slides,
An excavation blade provided downwardly inclined in front of the driving direction between the support plates,
A plurality of soil removal rollers arranged at the rear of the excavation blades so that both ends thereof are rotatably supported by the support plate;
A multi-functional agricultural electric vehicle bulb crop harvesting device comprising a power transmission unit for transmitting power output from the driving vehicle so that the soil removal roller is rotated. According to claim 2,
A bulb crop harvesting device for a multi-functional agricultural electric vehicle, characterized in that a blade portion protruding outward is formed on an outer circumference of the soil removal roller.

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