Potato harvester

Abstract

The potato harvester comprises a rack, a connecting mechanism, a harvesting mechanism and a vibrating mechanism, walking wheels are arranged at the rear end of the rack, the harvesting mechanism comprises a harvesting shovel and a screen, the harvesting shovel is connected to the front end of the bottom of the rack, the screen is hinged to the rear end of the bottom of the rack and communicates with the harvesting shovel, and the vibrating mechanism comprises a driving part and a connecting part. The first end of the connecting part is fixedly connected with the screen, the second end of the connecting part is hinged to the driving part, and the driving part is movably arranged in the vertical direction. In this way, the harvester is dragged by the tractor to move, the harvesting shovel shovels and collects potato crops and remains in the screen along with the movement, part of soil falls to the ground through the screen along with jolting in the advancing process, the synchronous driving part moves in the vertical direction to drive the connecting part to vertically move, and the connecting part and the screen are fixed to synchronously drive the screen to vibrate up and down in a small amplitude mode. Therefore, residual and accumulated soil on the potato crops and the screen is further vibrated off, the screen is prevented from being blocked by the soil, and the harvesting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural harvesting equipment, in particular to a potato harvester. Background Art

[0002] Potatoes mainly include sweet potatoes, potatoes, yams, taro, sweet potatoes, etc. They are usually crops grown in the fields and are an indispensable part of our daily diet.

[0003] The traditional method of harvesting potato crops manually requires a large amount of manpower and has high labor intensity. In addition, the harvesting speed is slow, the efficiency is low, and the time is long, and it is easy to miss the best harvesting period. In the prior art, a mechanized harvester is set up to shovel the potato crops, but there will still be a lot of soil residue on the shoveled potato crops. Although a screen is set up, the excessive soil will accumulate and cause the screen holes to be blocked, thereby affecting the harvesting effect and reducing the harvesting efficiency.

[0004] In view of this, it is necessary to propose a potato harvester to solve or at least alleviate the above-mentioned defects. Summary of the invention

[0005] The main purpose of the present invention is to provide a potato harvester to solve the problem that soil easily remains on the potato crops harvested by the potato harvester in the prior art, thereby affecting the harvesting effect.

[0006] To achieve the above-mentioned object, the present invention provides a potato harvester, comprising a frame, a connecting mechanism, a harvesting mechanism and a vibration mechanism; wherein:

[0007] The rear end of the frame is provided with a walking wheel, and the connecting mechanism is connected to the front end of the frame for connecting with an external tractor;

[0008] The harvesting mechanism comprises a harvesting shovel and a screen, wherein the harvesting shovel is connected to the bottom front end of the frame, and the screen is hinged to the bottom rear end of the frame and is connected to the harvesting shovel;

[0009] The vibration mechanism comprises a driving part and a connecting part, wherein a first end of the connecting part is fixedly connected to the screen, a second end of the connecting part is hinged to the driving part, and the driving part is movably arranged in the vertical direction.

[0010] Preferably, the driving part includes a driving assembly, an eccentric wheel, a tie rod assembly and a spherical bearing. The eccentric wheel is sleeved on the driving end of the driving assembly. The front end of the driving assembly is also convexly provided with an input shaft for connecting to an external tractor. The bottom end of the tie rod assembly is connected to the eccentric wheel, the bottom end of the spherical bearing is connected to the top end of the tie rod assembly, and the top end of the spherical bearing is hinged to the second end of the connecting part through a pin shaft.

[0011] Preferably, the connecting part includes a vibrating screen and two crank arms arranged relatively to each other along the width direction of the frame, the bottom end of the crank arm is on the vibrating screen, the top end of the joint bearing is hinged between the top ends of the two crank arms through a pin shaft, and there is a gap between the top end of the joint bearing and the two crank arms, and the vibrating screen hoop is arranged on the screen.

[0012] Preferably, the screen includes an arc-shaped bracket, an arc-shaped bar and a plurality of longitudinal bars, the arc-shaped bracket is hinged to the bottom end of the frame, the plurality of longitudinal bars are arranged at intervals along the circumference of the arc-shaped bracket to enclose and form a harvesting space, and the arc-shaped bar is correspondingly connected to the bottom of the plurality of longitudinal bars.

[0013] Preferably, the harvesting shovel is arranged to be inclined downward from the rear end toward the front end.

[0014] Preferably, both sides of the harvesting shovel are inclined and recessed toward the center.

[0015] Preferably, it also includes a shield connected to the frame and covering the driving part and the crank arm.

[0016] Preferably, the running wheels are arranged to be adjustably vertically.

[0017] Preferably, the distance between two adjacent longitudinal strips is 3 cm to 4 cm.

[0018] Preferably, the harvesting shovel is inclined downward from the rear end toward the front end at an angle of 8° to 10°.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The potato harvester provided by the present invention comprises a frame, a connecting mechanism, a harvesting mechanism and a vibrating mechanism, wherein the rear end of the frame has a walking wheel, the connecting mechanism is connected to the front end of the frame for connecting with an external tractor, the harvesting mechanism comprises a harvesting shovel and a screen, the harvesting shovel is connected to the bottom front end of the frame, the screen is hinged to the bottom rear end of the frame and is connected to the harvesting shovel, the vibrating mechanism comprises a driving part and a connecting part, the first end of the connecting part is fixedly connected to the screen, the second end of the connecting part is hinged to the driving part, and the driving part is vertically movably arranged. In this way, the harvester is dragged by the tractor to move, the harvesting shovel collects the potato crops and leaves them in the screen as it moves, and part of the soil falls to the ground through the screen as it bumps during the journey, and the synchronous driving part moves vertically to drive the connecting part to move vertically, and the connecting part is fixed to the screen to synchronously drive the screen to vibrate slightly up and down, thereby further shaking off the soil remaining and accumulated on the potato crops and on the screen, so as to avoid the soil blocking the screen and improve the harvesting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of one embodiment of the present invention after removing the frame and the shield;

[0023] Figure 2 It is a three-dimensional schematic diagram of the overall structure of one embodiment of the present invention;

[0024] Figure 3 It is a schematic elevation diagram of the overall structure in one embodiment of the present invention;

[0025] Figure 4 It is a three-dimensional schematic diagram of the overall structure after removing the protective cover in one embodiment of the present invention.

[0026] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

[0027] Description of Figure Numbers:

[0028] 10. Vibration mechanism; 110. Drive unit; 111. Drive assembly; 112. Eccentric wheel; 113. Tie rod assembly; 114. Spherical bearing; 115. Input shaft; 120. Connecting unit; 121. Vibrating screen; 122. Crank arm; 20. Harvesting mechanism; 210. Harvesting shovel; 220. Screen; 221. Arc bracket; 222. Arc bar; 223. Longitudinal bar; 30. Connecting mechanism; 40. Frame; 410. Travel wheel; 420. Protective cover. DETAILED DESCRIPTION

[0029] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Please see attached Figure 1-4 In one embodiment of the present invention, a potato harvester is provided, which includes a frame 40, a connecting mechanism 30, a harvesting mechanism 20 and a vibration mechanism 10. First of all, it should be noted that the longitudinal direction in this application refers to the length direction along the frame 40 (along the front and rear ends of the whole machine), and the transverse direction refers to the width direction along the frame 40; the front end refers to the travel direction of the whole machine, and the rear end refers to the tail of the travel direction of the whole machine. For details, please refer to the markings in the attached drawings; which is different from the prior art in which a mechanized harvester is set to shovel potato crops, but there will still be a lot of soil residue on the shoveled potato crops. Although a screen is set, excessive soil will accumulate and cause the screen holes to be blocked, thereby affecting the harvesting effect and reducing the harvesting efficiency. The present application solves the above-mentioned defects in the prior art by setting a potato harvester, as follows:

[0034] The rear end of the frame 40 is provided with a walking wheel 410, and the connecting mechanism 30 is connected to the front end of the frame 40 for connection with an external tractor; the harvesting mechanism 20 includes a harvesting shovel 210 and a screen 220, the harvesting shovel 210 is connected to the bottom front end of the frame 40, the screen 220 is hinged to the bottom rear end of the frame 40 and is connected to the harvesting shovel 210; the vibration mechanism 10 includes a driving part 110 and a connecting part 120, the first end of the connecting part 120 is fixedly connected to the screen 220, the second end of the connecting part 120 is hinged to the driving part 110, and the driving part 110 is movably arranged in the vertical direction.

[0035] Specifically, the potato harvester in the present application includes a frame 40, a connecting mechanism 30, a harvesting mechanism 20 and a vibration mechanism 10. The frame 40 is used for installing other components and serving as the bearing body of the whole machine. The connecting mechanism 30 is used for connecting to an external tractor, so that the tractor is used as a traction force and cooperates with the walking wheel 410 at the rear end of the frame 40 to pull the whole machine to move. Therefore, the connecting mechanism 30 is connected to the front end of the frame 40, and it can usually adopt a three-point suspension seat for easy connection. This is a common structure for connecting with a tractor, so it will not be described in detail here; the harvesting mechanism 20 is used to harvest potato crops during the travel process to achieve the purpose of automated harvesting. , which specifically includes a harvesting shovel 210 and a screen 220. During the moving process, the harvesting shovel 210 scoops up the potato crops in the soil, so the harvesting shovel 210 needs to be connected to the bottom front end of the frame 40 for scooping, and the screen 220 is connected to the bottom rear end of the frame 40 and communicated with the harvesting shovel 210, so that as the scooped crops accumulate, they are gradually retained in the screen 220. During the moving process, the vibration caused by the bumps can shake part of the soil off the screen 220 to the ground; and the vibration mechanism 10 is used to further vibrate the soil on the screen 220 to avoid the accumulation of soil on the screen 220 and the blocking of the screen 220 by soil.

[0036] Among them, the vibration mechanism 10 includes a driving part 110 and a connecting part 120, the connecting part 120 is used to connect with the screen 220, and the driving part 110 is used to drive the connecting part 120 to move, thereby synchronously driving the screen 220 to move to achieve the purpose of vibration. Therefore, the driving part 110 is movably arranged vertically, and in order to avoid rigid damage when the screen 220 moves, one end of the screen 220 is hinged to the frame 40, so as to ensure that it can adapt to small displacements of the connection during vibration to avoid damage caused by frequent amplitude.

[0037] As a preferred embodiment of the present invention, the driving part 110 includes a driving component 111, an eccentric wheel 112, a tie rod assembly 113 and a spherical bearing 114. The eccentric wheel 112 is sleeved on the driving end of the driving component 111. The front end of the driving component 111 is also convexly provided with an input shaft 115 for connecting to an external tractor. The bottom end of the tie rod assembly 113 is connected to the eccentric wheel 112. The bottom end of the spherical bearing 114 is connected to the top end of the tie rod assembly 113. The top end of the spherical bearing 114 is hinged to the second end of the connecting part 120 through a pin shaft.

[0038] It should be noted that the drive assembly 111 can adopt a gearbox, and its external front end has an input shaft 115, and the input shaft 115 is used to connect with the output shaft of the tractor, so that the tractor can achieve the purpose of traction by pulling the input shaft 115 in addition to being fixed to the connecting mechanism 30, and the interior of the drive assembly 111 itself has a driving end (rotating driving shaft) for the eccentric wheel 112 to be installed and connected. Since the eccentric wheel 112 will perform eccentric rotation when rotating, it cooperates with the pull rod assembly 113 extending vertically to convert the circular motion into vertical linear motion, and the The pull rod assembly 113 is connected to the connecting part 120 through the joint bearing 114 and the pin shaft. In this way, when the driving assembly 111 drives the eccentric wheel 112 to rotate, the eccentric wheel 112 makes an eccentric circular rotation, and the pull rod assembly 113 connected to the eccentric wheel 112 follows the rotation. The vertical displacement change is the largest in the process of the eccentric wheel 112 moving from the top end of the circumference to the bottom end of the circumference. In this way, the second end of the connecting part 120 is pulled vertically by the pull rod assembly 113 and the joint bearing 114, thereby driving the connecting part 120 and the screen 220 to move vertically at the same time to achieve vibration.

[0039] As a preferred embodiment of the present invention, the connecting portion 120 includes a vibrating screen 121 and two crank arms 122 arranged relatively along the width direction of the frame 40, the bottom end of the crank arm 122 is on the vibrating screen 121, the top end of the joint bearing 114 is hinged between the top ends of the two crank arms 122 through a pin, and there is a gap between the top end of the joint bearing 114 and the two crank arms 122, and the vibrating screen 121 is hooped on the screen 220.

[0040] It should be noted that the vibrating screen 121 is used to connect with the screen 220, and its hoop is arranged outside the screen 220 to ensure uniform force, thereby ensuring the effect of uniform distribution of vibration. The crank arm 122 is used to connect with the driving part 110, and it is arranged in two so that the joint bearing 114 can be connected between the two crank arms 122 after the pin shaft passes through. It is worth mentioning that since the eccentric wheel 112 will also have horizontal displacement when performing eccentric circular motion, although the horizontal displacement is limited and reduced under the cooperation of the pull rod assembly 113, a gap is set between the top of the joint bearing 114 and the two crank arms 122 to reserve some horizontal offset space, thereby improving the adaptability of the connection, reducing rigid damage, and extending the service life of the equipment.

[0041] As a preferred embodiment of the present invention, the screen 220 includes an arc-shaped bracket 221, an arc-shaped bar 222 and a plurality of longitudinal bars 223. The arc-shaped bracket 221 is hinged to the bottom end of the frame 40. The plurality of longitudinal bars 223 are arranged at intervals along the circumference of the arc-shaped bracket 221 to enclose and form a harvesting space. The arc-shaped bar 222 is correspondingly connected to the bottom of the plurality of longitudinal bars 223.

[0042] It is worth mentioning that the arc-shaped bracket 221 is used for installation and connection with the frame 40, which is hinged to the bottom end of the frame 40 to ensure that there can be slight amplitude changes during vibration. Multiple longitudinal bars 223 are arranged at intervals along the circumference of the arc-shaped bracket 221 to form an arc-shaped receiving space, which is convenient for collecting potato crops without falling from both sides, and the soil falls through the gap between the two longitudinal bars 223. The arc-shaped bar 222 is used to strengthen the lateral connection between the multiple longitudinal bars 223 to improve the structural integrity. It is arranged in an arc shape to match the layout of the multiple longitudinal bars 223, so that it can be connected to the bottom of the multiple longitudinal bars 223.

[0043] As a preferred embodiment of the present invention, the harvesting shovel 210 is tilted downward from the rear end toward the front end.

[0044] It is noteworthy that the front end is tilted downward to form an inclination with the soil surface, thereby facilitating shoveling of the soil to harvest the potato crops and improving shoveling efficiency.

[0045] Furthermore, both sides of the harvesting shovel 210 are inclined and recessed toward the center.

[0046] It should be noted that the two sides are inclined and recessed toward the center so that the harvesting shovel 210 forms a space that gathers toward the center, which is convenient for the centralized storage of the shoveled potato crops. After the quantity is stacked, they are pushed and stacked and then retained backward in the screen 220.

[0047] Furthermore, a protective cover 420 is included, and the protective cover 420 is connected to the frame 40 and covers the outside of the driving part 110 and the crank arm 122 .

[0048] It should be understood that the shield 420 is used to protect the driving unit 110 and the crank arm 122 from being exposed to the outside for a long time, thereby increasing the service life of the components.

[0049] Furthermore, the running wheels 410 are vertically adjustable.

[0050] It should be noted that the depth limiting wheel is formed in this way, which has wide adaptability and is easy to adjust, so that the height can be adjusted in real time according to the soil surface conditions, thereby improving the environmental adaptability of the whole machine.

[0051] Furthermore, the distance between two adjacent longitudinal strips 223 is 3 cm to 4 cm.

[0052] It should be noted that the spacing between two adjacent longitudinal bars 223 can be determined according to the size of the potato crops to prevent the potato crops from falling from the interval, while also ensuring sufficient clearance for shaking off the soil. Preferably, it can be set to 3 cm to 4 cm, and technicians in this field can set it according to actual conditions.

[0053] Furthermore, the harvesting shovel 210 is inclined downward from the rear end to the front end at an angle of 8° to 10°.

[0054] It can be understood that the angle of the harvesting shovel 210 tilting downward from the rear end toward the front end is suitable for the best shoveling angle with the soil surface, ensuring that the potato crops will not slide to the ground while ensuring convenient shoveling. Preferably, it can be set to 8° to 10°, and technical personnel in this field can choose according to their needs.

[0055] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A potato harvester, characterized in that: It includes a frame, a connecting mechanism, a harvesting mechanism and a vibrating mechanism; wherein, The rear end of the frame is provided with a walking wheel, and the connecting mechanism is connected to the front end of the frame for connecting with an external tractor; The harvesting mechanism comprises a harvesting shovel and a screen, wherein the harvesting shovel is connected to the bottom front end of the frame, and the screen is hinged to the bottom rear end of the frame and is connected to the harvesting shovel; The vibration mechanism comprises a driving part and a connecting part, wherein a first end of the connecting part is fixedly connected to the screen, a second end of the connecting part is hinged to the driving part, and the driving part is movably arranged in the vertical direction.

2. The potato harvester according to claim 1, characterized in that: The driving part includes a driving assembly, an eccentric wheel, a tie rod assembly and a spherical bearing. The eccentric wheel is sleeved on the driving end of the driving assembly. The front end of the driving assembly is also convexly provided with an input shaft for connecting to an external tractor. The bottom end of the tie rod assembly is connected to the eccentric wheel, the bottom end of the spherical bearing is connected to the top end of the tie rod assembly, and the top end of the spherical bearing is hinged to the second end of the connecting part through a pin shaft.

3. The potato harvester according to claim 2, characterized in that: The connecting part includes a vibrating screen and two crank arms arranged relatively along the width direction of the frame, the bottom end of the crank arm is on the vibrating screen, the top end of the joint bearing is hinged between the top ends of the two crank arms through a pin shaft, and there is a gap between the top end of the joint bearing and the two crank arms, and the vibrating screen hoop is arranged on the screen.

4. The potato harvester according to claim 1, characterized in that: The screen includes an arc-shaped bracket, an arc-shaped bar and a plurality of longitudinal bars, wherein the arc-shaped bracket is hinged to the bottom end of the frame, and the plurality of longitudinal bars are arranged at intervals along the circumference of the arc-shaped bracket to enclose and form a harvesting space, and the arc-shaped bar is correspondingly connected to the bottom of the plurality of longitudinal bars.

5. The potato harvester according to claim 1, characterized in that: The harvesting shovel is arranged to be inclined downward from the rear end toward the front end.

6. The potato harvester according to claim 5, characterized in that: The two sides of the harvesting shovel are arranged to be concave and inclined toward the center.

7. The potato harvester according to claim 3, characterized in that: It also includes a shield, which is connected to the frame and covers the driving part and the crank arm.

8. The potato harvester according to claim 1, characterized in that: The running wheels are arranged to be adjustably vertically.

9. The potato harvester according to claim 4, characterized in that: The distance between two adjacent longitudinal strips is 3 cm to 4 cm.

10. The potato harvester according to claim 5, characterized in that: The harvesting shovel is inclined downward from the rear end to the front end at an angle of 8° to 10°.

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