KR100252651B1 - Machine for harvesting root crops - Google Patents

Abstract

The root crop harvester has a gas, a pair of crawlers that support and move the gas, and an engine that drives the crawler. An excavator conveyor is installed at the front of the body at the center of the body and inclined downward. An excavator blade is then installed in front of the front end of the excavator conveyor to harvest the harvest from the pavement. Behind the excavator conveyor, a sorting conveyor is placed to receive the harvested harvest from the excavator conveyor and transport it. The sorting operation is performed on the opposite side of the sorting conveyor.

Description

Root Harvester

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root crop harvester, and more particularly, to a harvester for packaging and harvesting root crops such as sweet potatoes, potatoes, onions, chard, taro taran, and carrots.

Conventionally, harvesters of root crops, potato harvesters, modern harvesters, potato excavators, etc. have been used. The excavator blades are installed on passenger tractors and walking tractors, respectively, and the link-rod chain conveyors are mounted on the tails of the excavators. -The load chain conveyor has been used by vibrating.

These harvesters and excavators are very large in size, making them suitable for large scale pavement.

On the other hand, passenger tractors or walking tractors having excavator blades and conveyors have been developed to be suitable for small scale pavement. Such a machine operates to extract root vegetables from the packages and release them to the packages. Therefore, a work administration was needed to separate the picked root vegetables from the field and sort them out. In addition, since the tractor is equipped with mechanical elements such as blades and conveyors, there is a problem that not only the operation of the tractor is not good during harvesting and screening root vegetables, but also in particular, that it is not good for driving.

(Summary of invention)

It is an object of the present invention to provide a harvester of root vegetables that eliminates the above problems.

According to the invention there is a body, which has a pair of crawlers that can be supported and driven, an engine capable of driving the crawler as a driving clutch, from the center of the body to the front of the body It is made up of the vertically excavated excavator conveyor, which is inclined downward, to excavate the excavator blades in front of the front end of the excavator conveyor, so that it can pick up the root vegetables from the package, and the excavator conveyor can be picked up and transported from the excavator conveyor. A sorting conveyor is installed at the rear, and as a work clutch, a power transmission system capable of shifting the power of the engine in the sorting conveyor, and a sorting space on the opposite side of the sorting conveyor are installed to perform sorting work on the extracted root vegetables. To provide a root crop harvester.

Another object and effect in the present invention will be described in detail with reference to the accompanying drawings.

(Detailed Description by Example)

1 to 3, the potato harvester 1 of the present invention has a gas 2, and a pair of crawlers 3 are disposed below the gas 2 on the opposite side of the moving gas. The engine 4 was installed in the base 2, and the fuel tank 4a was installed above the engine. The engine 4 is provided with a generator and an oil pump which can be driven by the engine (not shown). A control unit 5 was installed at the rear of the engine 4 for operating the harvester 1, and a cockpit and work seat 6 was installed adjacent to the control unit 5.

In the front of the base 2, the excavator / conveyor apparatus 7 which removed the potato from the package and conveyed it to the harvester 1 was installed. The excavator / conveyor device 7 consists of a frame 8 inclined downward, with the excavator blade 9 mounted at the tip of the frame 8 between the engines on the opposite side of the frame 8. Rotating portion 10a of the inclined upper end portion and rotating portion 10d of the inclined lower portion are installed to be rotatable sideways, and an infinite belt conveyor 10 is provided between the rotating portions 10a and 10d. have.

In FIG. 4, the conveyor 10 consists of a plurality of link rods 10b. Each of the rods 10b is covered with an elastic cylinder 10c made of an elastic material such as rubber, and rotation is freely installed therefrom. A circular gap 10e is formed between the cylinder 10c and the rod 10b so that the cylinder 10c vibrates during operation of the conveyor. Rotation is freely provided in the shaft of the rotating part 10a of the inclined upper end so that the front end of the conveyor 10 may hinge upward with respect to the shaft of the said frame 8 of the conveyor 10. As shown in FIG. The axis of the rotating part 10a of the inclined upper end is continuously connected to the output shaft 4c of the engine 4 by the transmission 4d which varies in stages. In addition, a pair of hydraulic cylinders are provided between the left and right molds 8 which can adjust the inclination angle of the base 2 and the excavator / conveyor apparatus 7, ie, adjust the drilling depth.

A pair of brackets 12 are provided in the frame 8 on the left and right side and protrude forward of the conveyor 10. A follower 13 is installed on the bracket 12 to allow it to follow the ridges of the package during the harvester operation. The said follower 13 is comprised by the pair of running wheels 14 (running wheels) which are indirectly inclined along the fragrance | failure surface layer of the cropping object.

The suspension follower 13 is composed of an up and down adjustment mechanism 15 and a left and right adjustment mechanism 16, respectively, these mechanisms 15 and 16, respectively, the upper and lower parts and the left and right portions of the wheel 14, the excavator 7 It is made as an elastic member to adjust the correspondence. The axis of each wheel 14 is inclined inward to the horizontal plane as in toe-in and also inclined outward to the vertical plane as in camber angle.

At the rear of the excavator / conveyor device 7, a sorting conveyor device 18 is provided to sort out the potatoes supplied from the conveyor 10. The sorting conveyor device 18 is composed of an upper endless flat portion conveyor 18a.

In FIG. 5, a supply conveyor 18A is provided in the sorting conveyor apparatus 18, and the sorting conveyor 18B is continuously installed in the rear of the supply conveyor 18A. The speed of the feed conveyor 18A in this embodiment is configured faster than the sorting conveyor 18B.

On the opposite side of the sorting conveyor apparatus 18, it was installed so that the sorting work of potatoes could be performed. When the driver's seat 6 at the rear of the control unit 5 sorts the potatoes fed to the conveyor 18a, the driver at the seat 6 performs the sorting operation of the conveyor 18a. It is located on one side of the side. A working seat 19 is installed on the opposite side of the seat 6 in the form of a backless chair. The control unit tread plate 5a is installed at the lower portion of the control unit 5 corresponding to the seat 6, and the tread plate 21 and the stepping plate 20 for sorting work are installed in the respective seats 6 and 19. The treads 20 and 21 can be folded when not in use in the gas. On the side of the excavator / conveyor device 7 the harvested conveyed by the conveyor 10 is provided with an auxiliary work seat 17 so as to be separated from the gas so that the operator can select in advance. Each of the seats 6, 17 and 19 is slid with the shaft 6b and free to rotate about the backrest 6a of the chair, in order to free adjustment from it to the side. In addition, the chair height is also freely adjusted.

In FIG. 1 (b), a rake-shaped sieve is provided at the rear end of the sorting conveyor apparatus 18 and protrudes below it. The root vegetables discharged from the sorting conveyor apparatus 18 are dropped into the package through the rake-shaped body line 23.

In addition, at the rear of the sorting conveyor device 18, a rack 24 is provided above the body line 23. In FIG. 2, a container 42, such as a basket, is installed in the rack 24 during the sorting operation to include sorted potatoes.

The rack 24 is composed of a base 24c, a pair of left and right side frames 24a, and a rear frame 24b. Each frame is attached to the base 24c with a toggle spring 25 so as to rotate. In FIG. 6, when the rack 24 is used, the molds 24a and 24b stand perpendicular to the base 24c and are held in position by the spring 25. There is also a container 42 installed in the rack 24 which prevents the harvest from falling during excavation and sorting. As shown in Fig. 1 (b), the mold is spaced outward and is held in position by the spring 25 described above. In addition, the container 42 can be easily taken out from the rack. In FIG. 7, the rack 24 is folded when not in use.

The control unit 5 has an adjustment lever 26, a moving clutch lever and a clutch lever to operate the conveyor 10. The clutch lever 22 is provided adjacent to the worker's seat 19 on the opposite side of the body, and effectively connects the clutch lever to the control unit 5. The clutch lever is also operated on the other side of the body. Speed control of the conveyor 10 is various. Where the adjustment lever 26 is located, the steering wheel 27 is installed as shown in FIG.

Referring to Fig. 9, the operating part of the crawler 3 will be described. The crawler operation part is provided in the front part of the base 2, and consists of the operation part 29, the transmission apparatus 28, and the brake apparatus 35. As shown in FIG. The operation unit 29 is composed of a tight arm 36 which holds the gear 36a and the pair of cams 37. The shaft 27a of the handle 27 holds a gear 27b that can be engaged with the gear 36a. The pair of rods 32b, which are respectively connected to the clutch arms 32a of the transmission 28, are connected to the ends opposite to the tight arms 36.

The cam 37 is engaged with a pair of cam followers 38 that are freely rotatably installed on the brake rod 35b which is engaged with the brake arm 35a of the brake device 35.

In FIG. 10, the transmission device 28 includes an input shaft 30b connected to the engine 4 via a belt and pulley device 46, a transmission gear device 31, a pair of side clutches 32c, and a differential 33. In FIG. It consists of a hydraulic continuously variable transmission (30). The transmission gear device 31 has three gears 31a, 31b, and 31c. The gear 31a is provided in the input shaft 30a, and the gear 31b and 31c are rotatably provided in the said shaft 30a. The pair of clutches 32d formed on the opposite side of the gear 31g provided to be slidably on the shaft 30b are provided to selectively engage with any of the gears 31e and 31f. Further, by operating the clutch 32d described above, a low speed and a high speed can be selected. Each side clutch 32c has a clutch arm 32a. The side clutch 32c described above is connected to the crawler 3 as a gear 33a and a roller drive shaft 34. The differential 33 is provided between the roller drive shafts 34. The brake device 35 is effectively connected to the case of the differential 33 and is also connected to the brake arm 35a. The side clutch 32c described above is used for driving in the straight direction.

When the harvester rotates, one side of the side clutch 32c corresponding to the inside of the rotating crawler is separated, and the differential case of the differential 33 is braked by the brake device 35. As the differential case is braked, the crawler and the separated corresponding clutch are reversed by the operation of the differential 33. Therefore, it can be rotated into the center of the opposing claw without accompanying the propulsion of the harvester. By adjusting the braking of the differential case, the speed of the separated crawler can be varied. That is, slowing down the crawler, stopping, driving in reverse, and the like.

When not using the harvester 1, the excavator / conveyor device 7 is folded inward toward its center, in order to reduce its length, as shown by the dashed line in FIG. 2. Thus, the harvester can be easily transported by truck to enter a warehouse in a small space.

Figure 11 shows a variant of the work seat. The tides 6A and 19A are used in place of the seats 6 and 19. The seat can be used while the operator is standing or sitting.

In FIG. 12 (a), the seats 6A and 19A are composed of a seat portion 6b and a backrest 6a installed to be able to rotate over the seat portion 6b. The backrest 6a rotates under the seating portion 6b to make a plane with the seating portion to form a large seat. If the backrest 6a is fixed upward, the seat portion 6A is used in the line state as shown in Fig. 12 (b).

Figure 13 shows another variant of the seat described above. The seats 6B and 19B are composed of a seating portion 6c which can rotate about an axis provided on the leg of the seating portion. The seating portion 6c is rotatable in the upper and flat portions for use as a normal seat or as a backrest. The operator uses the seat 6B in the standing position as shown in Fig. 13 (b).

The strut holder 39 (FIG. 1 (a) and 11) is installed in the base roll 2 which meshes with the metal column 40a of the parasol 40 as shown in FIG. 40) to shade the driver or operator during harvesting. In addition, a fan 41, which is operated by a power source generated by the generator, is attached to the post to allow the worker to blow wind. Other electrical equipment, such as a radio, can be attached to the post 40a.

Explain the operation of the potato harvester.

In order to harvest the root vegetables such as potatoes by the harvester 1, the running wheel 14 of the follower 13 contacts the inclined portion of the corresponding ridge, and the excavator blade 9 of the excavator / conveyor device 7 Position it up the ridge. The depth of the blade (9) is adjusted by the hydraulic cylinder (11). The engine 4 drives the crawler 3 and moves forward along the ridge of the harvester 1. The blade 9 harvests the harvest with the soil around the harvest and the harvest and the soil are transported inward by the conveyor 10 described above. While the harvest is supplied to the conveyor 10, the soil is separated from the harvest by the vibration of the conveyor 10, and the rod 10a is caused by the wave of the elastic cylinder 10c of the rod 10a. ) In between. The harvest is preselected by the operator in the assistant's seat 17. In this way, vines, stems, leaves, large soils, stones, etc., other than potatoes, are removed from the harvest.

The harvest is then fed to the conveyor 18a of the sorting conveyor apparatus 18 so that the harvest can be sorted by the operator at the seats 6 and 19. The worker sorts the harvest while the harvest is being fed, and the sorted harvests are put in a container 42 in the rack 24. Remaining soil, impurities and unselected crops fall to the pavement at the end of the conveyor 18a through the sieve 23. First, the fallen harvest is exposed on the soil because the soil falls on the pavement and then the harvest falls. Thus, the harvest can be easily picked up from the package.

During harvesting, the running wheel 14 rolls along both sides of the ridge so that the gas 2 is automatically guided along the ridge. When the harvester 1 reaches the end of the ridge, the driver makes an operation to change its driving direction. In addition, the driver may serve as a worker who can sort the harvest. Thus, the number of workers is reduced to a minimum.

In order to change the direction of the harvester 1, the handle 27 is operated at a large angle. The harvester 1 is installed together with a transmission device 28 including a hydraulic continuously variable transmission 30, a speed transmission gear device 31, a differential 33 and a brake device 35 for operating the crawler 3. Therefore, it is possible to rotate the harvester at the minimum angle described above.

The speed of the conveyor 10 is changed by the transmission 4d. By combining the speed control of the crawler 3 in order to effectively harvest the small-scale package, the operating speed of the conveyor 10 can be controlled independently of the condition of the package and the product of the planted product. Can be.

The control unit 5 and the clutch lever 22 are provided on the opposite side of the body 2 to stop the operation of the harvester and the harvesting operation in the case where the other side is urgent.

The conveyor 18a described above uses a flat belt so as not to injure his fingers while the worker sorts the harvest. If a feed conveyor 18A and a sorting conveyor 18B having different speeds are used, the harvest does not fall into the space below the end of the conveyor 10, and the harvest supplied from the conveyor 10 is described above. It is smoothly transferred to the conveyor 18A. So the harvest does not go bad while being transported from it.

15 to 18 showing a second embodiment of a potato harvester are indicated by the same reference numerals as described in FIGS. 1 to 4 shown in the first embodiment and are the same as the first embodiment.

In the potato harvester 1A of the second embodiment, the engine 4 is installed in the body 2 opposite the control 5. As shown in FIG. 18, the excavator conveyor apparatus 7 holds a conveyor 50 of a slat conveyor having a plurality of slats connected by a link chain at a predetermined distance. The pair of hydraulic cylinders 52 are provided so that the excavator / conveyor device 7 can be changed in the folded state and the operating state. The transmission 28 is exposed at the front part in the center of the body.

The assistant operator's seat 17 is provided adjacent to the control unit 5 and has a step 17a and a safety rail 17c installed separately from the body. The pair of safety rails 53 are provided adjacent to the work seats 6 and 19 along the opposite sides of the conveyor 18a described above. In addition, the safety rail 53 may be used for the reinforcement of the base 2. It is very convenient for the worker to hold the safety rail when stepping on or down the tread plates 20a and 21a. The side U-shaped bar 56 is connected to both ends of the safety rail 53 above the conveyor 50. The lamp 57 is attached to the side bar 56. In FIG. 18, the arm 48 is connected to the bar 56, and the parasol 40 is connected to the arm 48 by a prop holder 49 so as to rotate.

A space 54 is provided in the lower portion of the sorting conveyor apparatus 18 to release soil and impurities in the package. The rack 44 is attached to the rear of the sorting conveyor apparatus 18 described above in the base 2. Many containers are installed in the rack 44. The rack can be folded when not in use and can be positioned up and down. A rack portion is provided in the tread plates 20a and 21a, respectively, and projects out from them, and a container is provided in the rack portion.

The potato harvester 1A of the second embodiment is operated in the same way as in the first embodiment.

The conveyor 18a of the sorting conveyor apparatus 18 may be replaced with a conveyor having various forms independently of the harvest or the growing conditions of the harvest. Since the conveyor 18a in the embodiment is a flat belt, the entire amount of the yield supplied through the conveyor 50 is supplied to the conveyor 18a.

In FIG. 18, the conveyor 18b consists of a series of rods forming an endless belt. So, during feeding, soil or small root vegetables fall between the rods.

FIG. 20 shows that a number of side bars of a rope conveyor 18c having a plurality of ropes pulled in the longitudinal direction of the conveyor are attached to all other ropes at a predetermined distance. During feeding, soil, stems, leaves and small potatoes fall through the ropes and bars.

In FIG. 21, the roller conveyor 18d is composed of seven tapered rollers arranged in the longitudinal direction of the conveyor 18d. The large diameter of the tapered roller is arranged in front of the conveyor. Soil, stems, leaves and small potatoes fall between the tapered sections of the rollers.

22 and 23 show an example in which the sorting device is further modified in the harvester 1A. The sorting conveyor device 18 is composed of a first sorting conveyor 18e, a second sorting conveyor 18f separately installed, and a connecting plate 45 for arbitrating the first conveyor and the second conveyor. The first conveyor 18e has the same structure as the conveyor 18b described above, and the second conveyor 18f has the same structure as the conveyor 18c described above. The container 43 installed in the rack 44 is disposed at the rear end of the conveyor 18f.

The harvest fed from the conveyor 50 to the conveyor 18e is picked by hand by the operator at the seats 6 and 19 described above to release a mixture other than potatoes. The small potato falls through the conveyor 18e and enters a container installed in the space 54. Potatoes larger than the medium size remain in the conveyor 18e and are passed through the plate 45 to the conveyor 18f and automatically enter the container 43.

In a variant, the operator in the seat 19 can be reduced because the potatoes automatically enter the container.

According to the present invention, in potato harvesters used for small scale operation, harvester operating systems such as engines, controls, transmissions are installed at the front of the gas, with the driver and operator located at their rear. Thus, the above-mentioned gas improves the balance, running, steering and stability of the gas during the harvesting operation.

Since the speed of the crawler and excavator conveyors varies independently of the conditions of the harvest and the packaging, the harvest is accurately picked up and transported. Therefore, workability and workability density are improved.

The sorting conveyor is installed at the rear of the excavator conveyor and can be replaced regardless of the harvest. Thus, even if there are only a few workers, the harvest can be properly selected.

The potato harvester in the present invention can be usefully used for collecting cans, bottles, chips, etc. discarded on the beach.

The present invention has been described in detail as in the above examples. However, the scope of the present invention is not limited to the Examples.

1 (a) and 1 (b) are an overall plan view showing a potato harvester according to the present invention.

2 is a side view of a potato harvester.

3 is a front view of a potato harvester.

4 is a partially enlarged sectional view of an excavator conveyor apparatus.

5 is a side view showing a modification of the sorting conveyor apparatus.

6 is an enlarged side view showing a rack in a container.

7 is a side view showing a bent state of the rack.

8 is a plan view showing the deformation of the control lever in the control portion.

9 is a perspective view showing the harvesting control system.

10 is a schematic plan view showing a transmission of the harvester.

11 is a plan view showing an example of a harvester having a modified workbench seat for sorting.

12 (a) and 12 (b) are explanatory views showing the use of a modified work seat.

13 (a) and 13 (b) are explanatory diagrams showing another variant of the work seat.

14 is a schematic side view of a harvester with added adjustments.

15 is a plan view showing a second embodiment of the harvester according to the present invention.

16 is a side view of a second embodiment.

17 is a schematic rear view of the second embodiment.

18 is a perspective view of a second embodiment.

19 is a plan view showing a modification of the selection conveyor of the second embodiment.

20 is a plan view showing another variant of the sorting conveyor.

Figure 21 is a plan view showing more variants of the sorting conveyor.

22 is a plan view showing a variation of the second embodiment.

23 is a side view of the deformation.

* Explanation of symbols for main parts of the drawings

(1): root crop harvester (2): gas

(3) Crawler (4) Engine part (engine, generator, hydraulic motor)

(4a): fuel tank (4b): belt motor

(4c): Output shaft (4d): Transmission

(5): control unit (5a): control unit tread

(6): cockpit and work seat (7): excavator conveyor system

(8): frame (9): excavator blade

(10): excavator conveyor (10a): rotating part of the inclined upper end

(10b): link rod (10c): elastic cylinder

(10d): Rotating portion of the inclined upper end (11): Hydraulic cylinder

(12): Bracket (13): Follower

14: wheel 15: up and down adjustment mechanism

(16): Left and right adjusting device (17): Assistant worker's seat

(18): sorting conveyor device (18a): upper endless flat conveyor

(18A): Supply Conveyor (18B): Sorting Conveyor

19: operator seat 20: tread

(21): stepping board for sorting worker

Claims (25)

In a root vegetable harvester having a gas, a pair of crawlers for moving and supporting the gas, and an engine for driving the crawler through a first power transmission system, An excavator conveyor installed vertically at the front of the gas at the center of the gas and inclined downward; Excavator blades installed in front of the excavator conveyor's tip to harvest harvest from the package; A sorting conveyor device disposed at the rear of the excavator conveyor to receive the harvest from the excavator conveyor and transport it; A second power transmission system for transmitting power of the engine to a conveyor through a work clutch; And A root vegetable harvester, characterized in that it comprises a sorting space which is installed on opposite sides of the sorting conveyor device for performing the sorting operation of the harvested harvest. The root vegetable harvester according to claim 1, further comprising a transmission for continuously and stepwise changing the speed of the excavator conveyor. The root vegetable harvester according to claim 1, wherein the sorting conveyor device is an upper flat conveyor. The root vegetable harvester according to claim 1, wherein the sorting conveyor device includes a feed conveyor and a sorting conveyor, wherein the speed of the feed conveyor is faster than the speed of the sorting conveyor. The root vegetable harvester according to claim 1, further comprising a rake-shaped sieve installed at the rear end of the sorting conveyor apparatus. According to claim 1, further comprising a control unit installed on one side of the aircraft, the rear of the control unit is provided with a working seat and a stepping plate on both opposite sides of the aircraft, the working seat adjacent to the control unit to the operator of the harvester Root harvester adapted for use by The apparatus of claim 1, further comprising a cockpit and a control unit installed at one side of the body, wherein the sorting space includes a work seat and a stepping plate of the seat, the cockpit being used as a work seat and rotating about its center. Root crop harvester, characterized in that the height and side position can be adjusted. The root vegetable harvester according to claim 1, wherein the excavator conveyor and the excavator blade are integrally formed by a mold, and the integral structure is installed to be freely rotatable to the gas. The root vegetable harvester according to claim 1, wherein at the rear end of the conveyor, the excavator conveyor is installed on the gas so as to be free to rotate. The root vegetable harvester according to claim 1, wherein the front part of the excavator conveyor is free to rotate with respect to the remaining part. The root vegetable harvester according to claim 1, wherein the excavator conveyor is formed of an endless belt consisting of a series of rods. The root crop harvester of Claim 1 which consists of the ridge tracing device installed in front of the said excavator conveyor in order to follow the ridge of a package. The said engine and said 1st power transmission system are arrange | positioned at the front part of the said crawler, The said sorting space and the harvesting container are arrange | positioned at the rear part of the said crawler. Root crop harvester. The crawler of claim 1, wherein the first power transmission system brakes a pair of side clutches for selectively transmitting engine power to a crawler, differentials disposed between both axles of the crawler, and cases of the differentials. Root harvester, characterized in that for controlling the speed of, the brake device is a corresponding clutch of the crawler is separated. The root vegetable harvester according to claim 1, further comprising a space formed between the sorting spaces below the sorting conveyor device. The root vegetable harvester according to claim 1, further comprising an assistant worker's seat on one side of the sorting conveyor device. The root vegetable harvester according to claim 1, wherein the sorting conveyor device is replaced with another type of conveyor. The root vegetable harvester according to claim 1, further comprising a safety rail installed adjacent to the sorting space and used as a reinforcing member of the gas. 8. The root vegetable harvester according to claim 7, wherein the stepping plate is accommodated inside the gas when the stepping plate is not used. 8. The root vegetable harvester according to claim 7, wherein a clutch lever is further provided on the opposite side of the cockpit, whereby the traveling clutch and the working clutch can be operated on both sides of the sorting conveyor apparatus. The root vegetable harvester according to claim 11, wherein the elastic cylinder is installed on each of the rods so as to freely rotate. 13. The apparatus of claim 12, wherein the follower includes a pair of running wheels rolling along opposite slopes of the corresponding ridges, wherein each of the pair of running wheels is up, down, and left and right with respect to the excavator conveyor. Root harvester, characterized in that installed so as to enable adjustment. The root crop harvester according to claim 12, wherein the axle of each of the runner wheels is inclined inward in the horizontal plane and inclined outward in the vertical plane. 18. The root vegetable harvester according to claim 17, wherein the other forms of the conveyor include a flat top conveyor, a rod conveyor consisting of a series of rods, a rope conveyor consisting of a plurality of ropes, and a tape roller conveyor. The root vegetable harvester according to claim 1, wherein a subsidiary conveyor is provided at the rear of the sorting conveyor.