CN111713241A

CN111713241A - Chinese yam harvesting device, equipment and method

Info

Publication number: CN111713241A
Application number: CN202010603862.9A
Authority: CN
Inventors: 杨硕林; 李震; 宋卫海; 邸志峰; 李曰阳; 赵志桓
Original assignee: Shandong Agriculture and Engineering University
Current assignee: Lichuan Binxinhuang Traditional Chinese Medicine Co.,Ltd.
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-09-29
Anticipated expiration: 2040-06-29
Also published as: CN111713241B

Abstract

The utility model provides a chinese yam harvesting apparatus, equipment and method, relate to agricultural harvesting equipment field, including the tube-shape storehouse body, including the telescopic link, the telescopic link passes through the ball pivot and cooperates with the support, through the contained angle of swing regulation and support around the ball pivot center, telescopic link one end cooperation has flexible actuating mechanism, the other end is the output, coaxial cooperation has the tube-shape excavation groove, flexible actuating mechanism passes through the telescopic link and drives the excavation groove action, change the vertical interval of excavation groove and support, realize digging chinese yam and the whole of the soil body around it, take out, need not to excavate in advance, make a small amount of soil body parcel chinese yam, scatter and take out on the ground, and can realize the quick of chinese yam, harmless excavation.

Description

Chinese yam harvesting device, equipment and method

Technical Field

The disclosure relates to the field of agricultural harvesting equipment, in particular to a Chinese yam harvesting device, Chinese yam harvesting equipment and a Chinese yam harvesting method.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The yam is generally harvested when the leaves wither, or harvested in spring after winter. The traditional harvesting mode adopts manpower to dig and harvest, a ditch with the depth of 70cm-80cm is dug along a planting ridge from one end of a planting area, then Chinese yams are dug out in sequence, in addition, the damage needs to be avoided, and the soil needs to be removed; just because have the demand of avoiding the damage when digging to the chinese yam, rely on the manual cooperation spade to operate more at present, digging one by one and get, consuming time is longer, and in addition, the planting ground of chinese yam is the sandy soil ground of bonding form generally, consumes time hard more when the operation.

The mode that current mechanized excavation chinese yam was mutually supported through grip block and results shovel realizes the results, especially to long rhizome class crop, can carry out convenient excavation to long rhizome class crop to, can reduce the damage to the crop to a certain extent.

The inventor finds that certain defects still exist when the yam is harvested by the existing mechanical equipment, on one hand, deep ditches need to be dug on two sides of a yam planting ridge, good digging can be achieved by matching with the equipment, preparation operation before receiving the yam still exists, the area between two lines of the yam is not flat, the early preparation work is not convenient to complete, and the problem of large workload still exists; on the other hand, the harvesting device driven by the transmission chain is easily buried by soil brought out by the excavating mechanism, the operation of the transmission mechanism is interfered, the transmission is failed, and long-time work is difficult to carry out.

Disclosure of Invention

The purpose of the disclosure is to provide a yam harvesting device, equipment and method aiming at the defects in the prior art, so that the yam and the soil around the yam are integrally excavated and taken out without excavating in advance, a small amount of soil wraps the yam and is scattered on the ground for taking out, and the yam can be quickly and nondestructively excavated.

The first purpose of the present disclosure is to provide a chinese yam harvesting apparatus, adopt following technical scheme:

including the telescopic link, the telescopic link passes through ball pivot and support cooperation, adjusts the contained angle with the support through the swing around ball pivot center, and telescopic link one end cooperation has flexible actuating mechanism, and the other end is the output, and coaxial cooperation has the tube-shape to excavate the groove, and flexible actuating mechanism passes through the telescopic link and drives the excavation tank action, changes the vertical interval of excavation tank and support.

The second purpose of this disclosure is to provide a chinese yam harvesting apparatus, include as above chinese yam harvesting apparatus to chinese yam harvesting apparatus installs on running gear, bears the weight of chinese yam harvesting apparatus by running gear and removes.

A third object of the present disclosure is to provide a yam harvesting method, which utilizes the yam harvesting apparatus as described above, and comprises the following steps:

the yam harvesting device adjusts the working position through the travelling mechanism, so that the digging groove faces to a yam planting area;

the telescopic driving mechanism enables the digging groove to fall through the telescopic rod and gradually penetrate into soil around the Chinese yam, so that the whole Chinese yam is positioned in the digging groove;

the telescopic rod swings around the center of the spherical hinge, so that soil body wrapped with Chinese yam in the excavating groove is separated from external soil body, and the excavating groove is driven to be lifted above the ground integrally;

adjusting the working position to be outside the yam planting area, releasing the soil body wrapped with the yams in the digging groove, and harvesting the next yam planting area.

Compared with the prior art, the utility model has the advantages and positive effects that:

(1) the Chinese yam and the soil around the Chinese yam are integrally taken out by penetrating into the soil of the Chinese yam planting area, so that a large amount of soil around the Chinese yam is prevented from being excavated, the Chinese yam is protected by the taken-out soil, the Chinese yam is prevented from being damaged during harvesting and scattering after being taken out to the bottom surface, the Chinese yam is exposed to realize harvesting, and the harvesting speed of the Chinese yam is improved;

(2) the travelling mechanism can travel across the yam planting ridges, and the areas among the yam ridges are used as travelling spaces and travelling paths, so that the excavating groove is always positioned above the yam planting areas; the driving mechanism is integrally arranged above the digging groove and the planting area, so that the interference of a soil body on the driving mechanism in the digging process can be avoided, the stacking height of the soil body is reduced due to no need of turning a large amount of soil, and the influence on the stable running of the running mechanism caused by the falling of the soil body from the planting ridges to the ridge rows is avoided;

(3) the longitudinal movement of the excavating groove is driven by the telescopic driving mechanism to realize excavation and taking out, the soil body in the excavating groove can be separated from the external soil body by the swinging action of the telescopic rod, the excavating groove can be ensured to take out the soil body wrapped with the Chinese yam from the soil, and the soil body wrapped with the Chinese yam in the lifting process is prevented from falling off from the excavating groove by matching with the small opening structure at the end part of the excavating groove, so that good excavation and taking out effects are realized;

(4) the second shaft of the telescopic rod can limit the rotation of the second shaft by matching the inserting plate groove with the fixed plate, and the fixed plate can swing along the inserting plate groove, so that the requirement of excavating the groove is met, and meanwhile, the axial reciprocating motion can be carried out under the action of driving the telescopic mechanism, and the falling and lifting requirements in the excavating process are met;

(5) after the soil body wrapping the Chinese yam is taken out of the excavation groove, the vibration exciter is utilized to vibrate the telescopic rod, so that the soil body falls off from the ground at a certain height, the soil body falls on the ground to be dispersed and expose the Chinese yam inside, the vibration exciter can also avoid the adhesion accumulation of the soil body in the excavation groove, after excavation at every time, the soil body in the excavation groove is completely emptied, and good operation in the next excavation position is guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.

Fig. 1 is a schematic view of the cooperation of a yam harvesting device and a traveling mechanism in

embodiments

1, 2 and 3 of the present disclosure;

FIG. 2 is a schematic view of a traction device used with a yam harvesting apparatus according to

embodiments

1, 2 and 3 of the disclosure;

fig. 3 is a schematic view of the cooperation between the telescopic rod and the spherical hinge in the harvesting device according to

embodiments

1, 2 and 3 of the present disclosure;

fig. 4 is a schematic structural view of an excavation tank in

embodiments

1, 2, and 3 of the present disclosure;

fig. 5 is a schematic view of the telescopic rod swinging around the spherical hinge in

embodiments

1, 2 and 3 of the present disclosure;

fig. 6 is a schematic view of yams in soil before digging in

embodiments

1, 2 and 3 of the present disclosure;

fig. 7 is a schematic view of a yam harvesting device in a planting area in

embodiments

1, 2, and 3 of the present disclosure;

FIG. 8 is a view taken along line A of FIG. 1;

fig. 9 is a flow chart of the working process of the yam harvesting device in

embodiments

1, 2 and 3 of the present disclosure.

In the figure, 1, a walking side box, 2, a swinging ball, 3, a swinging cylinder, 3-1, a cylinder support, 3-2, a cylinder action shaft, 4, a control panel, 4-1, a main starting switch, 4-2, a main closing switch, 4-3, a motor switch, 4-4, a cylinder switch, 4-5, a vibration exciter switch, 5, a power cabin, 6, a power supply box, 7, an asynchronous motor, 7-1, a motor connecting shaft, 8, a flat frame plate, 9, a working outer shaft, 9-1, a threaded inner hole, 10, a balance weight, 11, an extension length, 12, a working inner shaft, 13, a travelling wheel, 14, Chinese yam, 15, planting soil, 16, a digging groove, 16-1, a digging tooth, 16-2, a groove plate inner angle, 17, a soil groove column, 18, a vibration exciter, 18-1, a vibration exciting shaft, 18-2, a vibration exciting leather pad, 19. the automatic Chinese yam planting machine comprises a traction device, 20 return springs, 21 motor fixing plates, 22 motor frame plates, 23 sliding bearings, 24 sliding sleeves, 25 swing angles, 26 Chinese yam planting areas, 27 Chinese yam depths, 28 planting intervals, 29 planting ditches, 30 walking ditches, 31 spacing positions, 32 control circuits, 33 inner shaft fixing plates and 34 inserting plate grooves.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate that the directions of movement are consistent with those of the figures themselves, and are not limiting in structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present disclosure.

As introduced in the background art, the mechanical yam harvesting equipment in the prior art has many defects, and still has the problems of large workload and short continuous working time; in order to solve the problems, the present disclosure provides a yam harvesting device, a device and a method.

Example 1

In an exemplary embodiment of the present disclosure, as shown in fig. 1 to 3, a yam harvesting apparatus is provided.

Mainly comprises a bracket, a telescopic rod arranged on the bracket through a spherical hinge, a telescopic driving mechanism, an excavating groove 16, a swinging driving mechanism and a vibration exciter 18;

the spherical hinge is matched with the flat frame plate, the vibration exciter and the swing driving mechanism are all installed on the support, and the support is suitable for the arrangement of the positions of the elements to support and restrain the elements.

The telescopic rod is matched with the support through the spherical hinge, an included angle between the telescopic rod and the support is adjusted through swinging around the center of the spherical hinge, one end of the telescopic rod is matched with the telescopic driving mechanism, the other end of the telescopic rod is an output end, the telescopic driving mechanism is coaxially matched with the cylindrical excavating groove, the telescopic driving mechanism drives the excavating groove to act through the telescopic rod, and the vertical distance between the excavating groove and the support is changed;

the telescopic link is matched with a swing driving mechanism, and the output end of the swing driving mechanism is hinged on the telescopic link rod, so that the telescopic link and the telescopic driving mechanism are driven to swing around the center of the spherical hinge together.

Through the swing of telescopic link, can drive terminal excavation tank and swing around ball pivot center, utilize the swing action of telescopic link to make the soil body in the excavation tank can break away from outside soil body, guarantee that the excavation tank can take out the soil body that the parcel has chinese yam 14 from the soil of excavation tank outside.

The telescopic rod comprises a first shaft and a second shaft which are coaxially arranged, one end of the first shaft penetrates through the spherical hinge and then is matched with the telescopic driving mechanism, the other end of the first shaft is matched with one end of the second shaft through threads, and one end, far away from the first shaft, of the second shaft is connected with the excavating groove;

in the embodiment, the first shaft is used as a working outer shaft, one end of the first shaft is connected with the telescopic driving mechanism, the other end of the first shaft is provided with a threaded inner hole 9-1, the second shaft is used as a working inner shaft, one end of the second shaft is connected with the excavating groove, the other end of the second shaft is provided with a threaded rod, the threaded rod is matched with the threaded inner hole 9-1 to form a threaded transmission mechanism, and when the outer shaft rotates, the second shaft can be driven to reciprocate along the axial direction.

The second shaft is provided with rectangular through holes, the second shaft side circumferential surface buses are distributed along the second shaft side circumferential surface to form inserting plate grooves 34, fixing plates capable of sliding relative to the inserting plate grooves along the axial direction of the second shaft are matched in the inserting plate grooves 34, and the fixing plates are installed on the support; upon rotation of the outer shaft, rotation of the inner shaft is constrained by the plate slots 34, thereby causing relative rotation with respect to the outer shaft such that the inner shaft moves axially with the plate slots 34.

The vibration exciter is installed on the support, and the output of vibration exciter is arranged towards the telescopic link, and at the during operation, vibration exciter output intermittent type striking telescopic link realizes the vibration to the telescopic link.

For the excavating groove, one axial end of the excavating groove is opened, the other end of the excavating groove is plugged and connected with a telescopic rod, and the inner diameter of the opening of the excavating groove is smaller than the inner diameters of other axial positions;

the end part small opening structure of the digging groove avoids the soil body wrapped with Chinese yam from falling off from the digging groove in the lifting process, thereby realizing good digging and taking-out effects.

The Chinese yam and the soil around the Chinese yam are integrally taken out by penetrating into the soil of the Chinese yam planting area, so that a large amount of soil around the Chinese yam is prevented from being excavated, the Chinese yam is protected by the taken-out soil, the Chinese yam is prevented from being damaged during harvesting, the Chinese yam is scattered after being taken out of the bottom surface, the Chinese yam is exposed, the harvesting is realized, and the harvesting speed of the Chinese yam is increased.

Specifically, in the present embodiment, the detailed configuration of each part is as follows, with reference to the drawings.

The swing driving mechanism is arranged on the rack, corresponds to an external power cabin and comprises a swing cylinder and a return spring, and the telescopic driving mechanism comprises an asynchronous motor 7 and a motor fixing plate 21;

the outer portion of one side of the power compartment is fixedly provided with a swing cylinder 3 through a cylinder support 3-1, wherein the swing cylinder is connected with a cylinder action shaft through a sliding bearing in a hole groove of a wall plate of the power compartment, the other end of the cylinder action shaft 3-2 is connected to the end portion of the other end of a motor fixing plate 21, the upper end portion of an asynchronous motor is fixed in the middle of the motor fixing plate 21, the end portion of the other end of the motor fixing plate 21 is connected with a return spring 20, and the other end of the return spring.

Asynchronous machine upper end is fixed in the middle of motor fixed plate 21, motor fixed plate 21 other end tip is connected with return spring, the return spring other end is fixed the interior terminal surface of nacelle guarantees that devices such as asynchronous machine can in time return after receiving pendulum power.

The spherical hinge is in a structure that a swing ball is matched with a flat frame plate, a plurality of motor frame plates 22 are welded on the outer end face of the motor fixing plate 21, and the other ends of the motor frame plates 22 are fixedly welded on the end face of the swing ball, so that the asynchronous motor and the swing ball move synchronously;

a sliding sleeve 24 which can be lubricated and rotated is arranged at the matching position of the flat frame plate and the swinging ball, and a sliding bearing 23 is arranged at the position of a motor connecting shaft and swinging ball connecting matching hole groove;

a threaded inner hole is formed in the length position of the matched connection between the motor connecting shaft and the working inner shaft, the lower part of the working inner shaft penetrates through the inner shaft fixing plate, and a penetrating type inserting plate groove 34 is formed in the working inner shaft;

of course, it is understood that the distance between the working outer shaft and the working inner shaft is screw-adjustable to be the extension length 11D1, the digging groove can be deep into the planting soil 15 to the depth 27D2 of the yam, and the extension length 11D1 can be configured to be 2 times the depth D2 of the yam, thereby securing the digging effect thereof.

The inner shaft fixing plate is installed in the inserting plate groove 34 in a matched mode in a sliding clearance fit mode, and the inner shaft fixing plate is identical to the inserting plate groove 34 in size in width;

in the length dimension, the plug plate groove 34 is larger than the inner shaft fixing plate, and the length of the plug plate groove 34 is set according to the extension length 11D 1.

Because the working inner shaft is limited by the inner shaft fixing plate in the rotating direction, the working inner shaft just slides up and down in the inserting plate groove 34, and finally the working inner shaft drives the excavating groove to move down.

The second shaft of telescopic link passes through picture peg groove 34 cooperation fixed plate and can prescribe a limit to the rotation of second shaft to the fixed plate can be followed the swing of picture peg groove 34, when satisfying the excavation tank demand, can carry out axial reciprocating motion under drive telescopic machanism's effect, satisfies the whereabouts and the promotion demand of excavating the in-process.

The vibration exciter 18 is horizontally arranged on a walking side box outside one side, the end face of the vibration exciter is connected with a vibration exciting shaft 18-1, the other end of the vibration exciting shaft is provided with a vibration exciting leather pad 18-2, and the horizontal installation height of the vibration exciter is ensured to be in contact with a working outer shaft.

After the soil body wrapping the Chinese yam is taken out of the excavation groove, the vibration exciter is utilized to vibrate the telescopic rod, so that the soil body falls off from the ground at a certain height, the soil body falls on the ground to be dispersed and expose the Chinese yam inside, the vibration exciter can also avoid the adhesion accumulation of the soil body in the excavation groove, after excavation at every time, the soil body in the excavation groove is completely emptied, and good operation in the next excavation position is guaranteed.

For the digging groove 16, in the embodiment, the bottom end surface of the digging groove is uniformly provided with digging teeth 16-1, and the digging groove is provided with a groove plate inner angle 16-2 smaller than 90 degrees, and in the embodiment, the groove plate inner angle is about 89 degrees, so that the opening of the digging groove is smaller than the diameter of other positions;

the minimum diameter of the groove digging plate is equal to the approximate circular Chinese yam planting area Dmax, and the swing ball can generate a certain swing angle in the side direction along the inserting plate groove 34 under the action of the swing cylinder;

the swing angle 25 is set according to the soil adhesion degree, generally 30-40 degrees, and the soil groove column 17 is guaranteed to be separated from the broken planting soil in time.

Example 2

In another exemplary embodiment of the present disclosure, as shown in fig. 1-3, a yam harvesting apparatus is provided.

The Chinese yam harvesting device is characterized by comprising the Chinese yam harvesting device in the embodiment 1, wherein the Chinese yam harvesting device is arranged on a travelling mechanism, and the travelling mechanism and the Chinese yam harvesting device are driven by a traction device 19 to move.

In this embodiment, the walking mechanism includes a walking side box 1, the two sides of the walking side box 1 are distributed, a flat frame plate 8 is arranged on a middle fixing frame at the top, and a swinging ball 2 is arranged in a central slot hole of the flat frame plate 8;

a power cabin 5 is erected on the top end face of the walking side box, an asynchronous motor 7 is installed in the power cabin, the end of the asynchronous motor is connected with a motor connecting shaft 7-1, the other end of the motor connecting shaft is connected with a working outer shaft 9, and the other end of the working outer shaft 9 is fixedly connected to the outer end face of the excavating groove through a working inner shaft 12;

the digging groove can deeply penetrate into planting soil to dig out a soil groove column 17 containing Chinese yams, four corners of the bottom end parts of the walking side boxes on two sides are respectively provided with a walking wheel 13, a balance weight 10 is respectively arranged in the cavity of the walking side boxes on two sides, and a vibration exciter is fixedly arranged on the balance weight of the walking side box on one side;

a power supply box 6 for providing electric energy is arranged in the power cabin, a control panel 4 is arranged at the outer end of the power cabin, the control panel is provided with a main starting switch 4-1, a main closing switch 4-2, a motor switch 4-3, an air cylinder switch 4-4 and a vibration exciter switch 4-5 which are sequentially sequenced, and the power supply box is controlled by a control circuit 32 at a specific time;

the control process is realized through the control panel 4 and the control circuit 32, and the electric energy supply device is the power supply box 6.

The walking side case walks in walking ditch 30 through the walking wheel, the in-process the work outer axle or the central line of the interior axle of work keeps planting 29 within ranges in the ditch, evenly plant yam planting area 26 in the planting ditch, set up to spaced position 31 between the yam planting area 26, its intermediate separation distance is planting interval D0.

The whole walking device can realize stepping walking control according to the planting distance 28 of the Chinese yam carrying area, the realization mode can be controlled by installing a programming controller in the device, and the swing ball and the inserting plate groove are coaxially arranged to ensure the consistency of the swing angle.

The configuration of the yam harvesting device is the same as that in embodiment 1, and the description is omitted.

Example 3

In another exemplary embodiment of the present disclosure, a yam harvesting method is provided.

The yam harvesting device disclosed in example 2 is utilized to work, and specifically comprises the following steps:

When the telescopic rod swings, the telescopic rod swings back and forth relative to the center of the spherical hinge, and soil body wrapped with Chinese yam is positioned in the digging groove and does not fall off;

the digging groove releases the soil body wrapped with the Chinese yam between two adjacent Chinese yam planting areas, and the released soil body scatters to expose the Chinese yam.

The yam harvesting process is described in detail with reference to the structure of the yam harvesting device disclosed in the accompanying drawings 1-9 and the embodiment 2:

the whole harvesting equipment runs under the traction of the traction device 19 after the main starting switch 4-1 is pressed;

in the device, the walking side box 1 walks in a walking groove 30 through walking wheels 13, and the central line of the working outer shaft 9 or the working inner shaft 12 is kept in the range of a planting groove 29 in the process;

when the Chinese yam planting field walking to the digging groove 16 is over against the first Chinese yam planting field 26, a motor switch 4-3 is started, an asynchronous motor 7 rotates forwards, rotational kinetic energy is transmitted to a working outer shaft 9 through a motor connecting shaft 7-1, the working inner shaft 12 is limited in the rotating direction by an inner shaft fixing plate 33 due to a threaded inner hole 9-1 arranged inside the working outer shaft 9, but the working inner shaft 12 just slides up and down in a plug plate groove 34, and finally the working inner shaft 12 drives the digging groove 16 to move downwards to contact with planting soil 15 and go deep downwards;

the minimum diameter of the digging groove 16 is equal to the approximate circular yam planting area 26Dmax, the whole yam planting area 26 is contained, the distance between the working outer shaft 9 and the working inner shaft 12 which can be adjusted by screw threads is the extension length 11D1, the depth of the digging groove 16 which can penetrate into the planting soil 15 is the yam depth 27D2, the extension length 11D1 is 2 times of the yam depth 27D2, and the penetration depth is guaranteed to be larger than the maximum length of the yam-the yam depth 27D 2;

when the depth reaches a specified depth, a soil groove column 17 appears in the excavating groove 16, the motor switch 4-3 is closed, and the asynchronous motor 7 stops rotating forwards;

starting the cylinder switch 4-4, the cylinder action shaft 3-2 rapidly extends to push the motor fixing plate 21 to swing, and due to the matching of the motor connecting shaft 7-1 and the swing ball 2, the asynchronous motor 7, the motor connecting shaft 7-1, the excavating groove 16 and the like also generate the same swing angle under the swing angle 25 of the swing ball 2, so that the soil groove column 17 in the excavating groove 16 is separated from the planting soil 15;

digging teeth 16-1 are uniformly arranged on the bottom end face of the digging groove 16, the digging groove 16 is provided with a groove plate inner angle 16-2 smaller than 90 degrees and about 89 degrees, and the digging groove 16 is ensured to be deeply inserted and separated soil groove columns 17 are temporarily fixed in the digging groove 16;

at the moment, a motor switch 4-3 is started, an asynchronous motor 7 rotates reversely, and structures such as an excavating groove 16 move upwards under the action of a working inner shaft 12 in a threaded inner hole 9-1 until the excavating groove 16 drives a soil groove column 17 to rise and separate from planting soil 15 by a certain height;

the main starting switch 4-1 is turned on again, the device moves forward, after the device reaches the spacing position 31 of the planting ditch 29, the vibration exciter switch 4-5 is pressed down, the vibration exciting leather pad 18-2 of the vibration exciting shaft 18-1 rapidly vibrates the working outer shaft 9, and the soil trench column 17 in the excavating trench 16 is suddenly dropped off by the vibration force;

the Chinese yam screening device falls on the spacing position 31 of the planting ditch 29 for the planting personnel to screen the Chinese yam 14, and can also fall on a roller and the like in a corresponding transmission screening mechanism which is arranged in a matched way to carry out automatic screening and collection on the Chinese yam;

then the device advances to the next yam planting area 26, and the operation is performed in the same way, and the operation is circulated in sequence.

The travelling mechanism can travel across the yam planting ridges, and the areas among the yam ridges are used as travelling spaces and travelling paths, so that the excavating groove is always positioned above the yam planting areas; the whole driving mechanism is arranged above the digging groove and the planting area, so that interference of a soil body to the driving mechanism in the digging process can be avoided, the stacking height of the soil body is reduced due to no need of turning a large amount of soil, and the soil body is prevented from sliding from the planting ridges to the ridge rows to influence the stable running of the running mechanism.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. The utility model provides a chinese yam harvesting apparatus, its characterized in that, includes the telescopic link, and the telescopic link passes through ball pivot and support cooperation, through the swing regulation around ball pivot center and the contained angle of support, telescopic link one end cooperation has flexible actuating mechanism, and the other end is the output, and coaxial cooperation has the tube-shape excavation groove, and flexible actuating mechanism passes through the telescopic link and drives the excavation groove action, changes the vertical interval of excavation groove and support.

2. The yam harvesting device of claim 1, wherein the telescoping rod comprises a first shaft and a second shaft arranged coaxially, one end of the first shaft passes through the ball joint and then engages the telescopic driving mechanism, the other end engages one end of the second shaft through a screw thread, and the end of the second shaft remote from the first shaft is connected to the digging groove.

3. The yam harvesting device as claimed in claim 2, wherein the second shaft is provided with rectangular through holes, and the rectangular through holes are distributed along the generatrix of the circumferential surface of the second shaft side to form a plug board groove, a fixing plate capable of sliding relative to the plug board groove along the axial direction of the second shaft is fitted in the plug board groove, and the fixing plate is mounted on the bracket.

4. The yam harvesting device as claimed in claim 1, wherein the support is provided with a vibration exciter, and the output end of the vibration exciter faces the telescopic rod.

5. The yam harvesting device of claim 1, wherein the telescopic rod is coupled with a swing driving mechanism, and an output end of the swing driving mechanism is hinged to the telescopic rod to drive the telescopic rod and the telescopic driving mechanism to swing together around the center of the spherical hinge.

6. The yam harvesting device of claim 1, wherein one end of the digging groove is open in the axial direction, the other end of the digging groove is blocked and connected with the telescopic rod, and the inner diameter of the opening of the digging groove is smaller than the inner diameter of other positions in the axial direction.

7. A yam harvesting apparatus, comprising a travelling mechanism and a yam harvesting device as claimed in any one of claims 1 to 6 mounted on the travelling mechanism.

8. A yam harvesting method, characterized in that the yam harvesting equipment as claimed in claim 7 is used, and the following steps are adopted:

9. The yam harvesting method of claim 8, wherein the telescopic rod swings back and forth relative to the center of the spherical hinge when swinging, and the soil body wrapped with yams is not dropped off in the digging groove.

10. The yam harvesting method of claim 8, wherein the digging groove releases soil mass wrapped with yams between two adjacent yam planting areas, and the released soil mass scatters to expose yams.