CN210610324U

CN210610324U - Houttuynia cordata rhizome harvesting device

Info

Publication number: CN210610324U
Application number: CN201921447734.9U
Authority: CN
Inventors: 杨学峰; 杨洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-05-26
Anticipated expiration: 2029-09-02

Abstract

The utility model provides a heartleaf houttuynia herb rhizome harvesting device, it includes the skeleton, plough dark stop gear, conveying mechanism and separating mechanism, is connected through the front end of ploughing dark stop gear and skeleton, is connected with conveying mechanism behind the position of ploughing dark stop gear, is connected with separating mechanism behind the position of conveying mechanism, shovels the degree of depth into soil through ploughing dark stop gear control skeleton front end coulter, carries the heartleaf houttuynia herb rhizome of mixing in soil to separating mechanism through conveying mechanism, separates soil and heartleaf houttuynia herb rhizome through separating mechanism. The utility model overcomes former houttuyniae adopts the manual work to excavate the rhizome inefficiency, and intensity of labour is high, causes rhizome large tracts of land damage, cracked problem easily, has simple structure, and the separation of limit pears soil limit, results efficiently, and low in labor strength is difficult for hindering and the rhizome, avoids the rhizome large tracts of land cracked, easy operation convenient characteristics.

Description

Houttuynia cordata rhizome harvesting device

Technical Field

The utility model belongs to the technical field of the agricultural machinery, a heartleaf houttuynia herb rhizome harvesting device is related to.

Background

The houttuynia cordata has edible and medicinal values, leaves of the houttuynia cordata are located on the upper portion of soil, roots of the houttuynia cordata are located in the soil, the leaves can be used for making tea, the roots of the houttuynia cordata can be eaten, the houttuynia cordata mainly grows in sandy and softer soil, the roots of the houttuynia cordata are located below 20-50 parts of a soil surface, the leaves on the upper layer of the soil surface are firstly cut off during harvesting, then the roots of the houttuynia cordata in the soil are manually excavated, and then a plow harrow is used for separation, so that the houttuynia cordata:

1. the labor intensity is high and the harvesting efficiency is low by depending on manual excavation and plough rake separation;

2. in the excavation process, large-area rootstock damage and fragmentation are easily caused.

Disclosure of Invention

The utility model aims to solve the technical problem that a heartleaf houttuynia herb rhizome harvesting device is provided, moreover, the steam generator is simple in structure, adopt the dark stop gear of plough to be connected with the front end of skeleton, be connected with conveying mechanism behind the dark stop gear of plough, be connected with separating mechanism behind the conveying mechanism, the dark stop gear of plough controls the degree of depth that soil was shoveled into to skeleton front end coulter, conveying mechanism carries the heartleaf houttuynia herb rhizome to the separating mechanism who mixes in soil, separating mechanism separates soil and heartleaf houttuynia herb rhizome, the separation of limit pears soil limit, harvest efficiency is high, low in labor strength, be difficult for hindering the rhizome, avoid the rhizome large tracts of land fracture, and easy operation is convenient.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a houttuynia cordata rhizome harvesting device comprises a framework, a plough depth limiting mechanism, a conveying mechanism and a separating mechanism; the plough depth limiting mechanism is positioned at the front end of the framework and connected with the framework, the conveying mechanism is positioned behind the plough depth limiting mechanism and connected with the framework, the separating mechanism is positioned behind the conveying mechanism and connected with the framework, and the conveying mechanism and the separating mechanism are in transmission connection with each other; the conveyer belt of conveying mechanism and the separating screen of separating mechanism incline to the upside backward along the skeleton, and one end of separating screen is located the below of conveyer belt.

The frame is a hollow frame structure, an inclined coulter is arranged at the front end, and a connecting plate is arranged at the rear end.

The plough depth limiting mechanism comprises a support connected with the framework and a limiting roller in sliding fit with the support.

And one side or two sides of the bracket are provided with cutting devices with adjustable heights.

The limiting idler wheel comprises a connecting shaft penetrating through the hollow idler wheel, an openable cover plate is arranged on the hollow idler wheel, and the connecting shaft is in sliding fit with the support.

The conveying mechanism comprises a conveying belt matched with a front shaft and a rear shaft, and the front shaft and the rear shaft are connected with the framework.

The conveyer belt is matched with the shaft wheels at the two ends of the front shaft and the rear shaft, and is connected with a bent plate.

And anti-hitting sliding blocks are arranged at two ends of the front shaft and used for shifting the bent plate on the conveying belt during rotation.

The separating mechanism comprises a separating screen connected with the front separating shaft and the rear separating shaft and a power shaft connected with the rear separating shaft through a belt.

The rear separation shaft is a vibration shaft.

A houttuynia cordata rhizome harvesting device comprises a framework, a plough depth limiting mechanism, a conveying mechanism and a separating mechanism; the plough depth limiting mechanism is positioned at the front end of the framework and connected with the framework, the conveying mechanism is positioned behind the plough depth limiting mechanism and connected with the framework, the separating mechanism is positioned behind the conveying mechanism and connected with the framework, and the conveying mechanism and the separating mechanism are in transmission connection with each other; the conveyer belt of conveying mechanism and the separating screen of separating mechanism incline to the upside backward along the skeleton, and one end of separating screen is located the below of conveyer belt. Simple structure, be connected with the front end of skeleton through plough dark stop gear, be connected with conveying mechanism behind the dark stop gear of plough, be connected with separating mechanism behind the conveying mechanism, the degree of depth of shoveling into soil through plough dark stop gear control skeleton front end coulter, carry the houttuynia cordata rhizome to the separating mechanism of mixing in soil through conveying mechanism, separate soil and houttuynia cordata rhizome through separating mechanism, the soil limit separation of limit pear, it is efficient to harvest, low in labor strength, the rhizome is difficult for hindering, avoid the rhizome large tracts of land cracked, easy operation is convenient.

In the preferred scheme, the framework is a hollow framework structure, an inclined coulter is arranged at the front end, and a connecting plate is arranged at the rear end. Simple structure, during the use, the connecting plate of skeleton rear end is used for being connected with propulsion equipment, and the output shaft that runs through the connecting plate is connected with propulsion equipment's driving medium, relies on the driving medium to drive the output shaft rotatory, and the coulter of skeleton front end relies on propulsion equipment's thrust to go deep into soil.

In the preferred scheme, plough dark stop gear includes the support of being connected with the skeleton, with support sliding fit's spacing gyro wheel. Simple structure, during the use, spacing gyro wheel and soil top layer contact, at the in-process that propulsion unit gos forward, spacing gyro wheel and soil contact roll, the degree of depth that the restriction coulter gos deep into soil avoid the coulter to lead to propulsion unit to be obstructed more deeply more than the pears.

In a preferred solution, the cutting device with adjustable height is arranged on one or both sides of the support. Simple structure, during the use, cutting device is used for cutting off the rhizome of houttuyniae, avoids its winding to influence on the coulter and carries, when the houttuyniae was planted and is adopted single ridge to plant, one side set up cutting device can, when adopting many ridges to plant, both sides set up cutting device, cut off the houttuyniae rhizome of planting both sides in the ground simultaneously, when gyration results once more, the cutting vestige of one side and the cutting vestige coincidence of original one side avoid causing the rhizome cracked by a large scale, damaged.

In a preferred scheme, the limiting idler wheel comprises a connecting shaft penetrating through the hollow idler wheel, an openable cover plate is arranged on the hollow idler wheel, and the connecting shaft is in sliding fit with the support. The structure is simple, and when the device is used, the connecting shaft penetrating through the hollow roller can slide along the sliding groove on the bracket, so that the height difference between the device and the coulter is adjusted, and the depth of the coulter penetrating into soil is limited.

In a preferred scheme, the conveying mechanism comprises a conveying belt with a front shaft and a rear shaft matched with each other, and the front shaft and the rear shaft are connected with the framework. Simple structure, during the use, conveying mechanism's rear axle is connected with the output shaft belt on the connecting plate, perhaps, is connected with separating mechanism's preceding separating axle belt, relies on output shaft or preceding separating axle drive conveyer belt to rotate, and the soil that plows out mixed heartleaf houttuynia herb rhizome by the conveyer belt moves backward to separating mechanism.

In the preferred scheme, the conveyer belt is matched with shaft wheels at two ends of the front shaft and the rear shaft, and a bent plate is connected with the conveyer belt. The structure is simple, when in use, the conveyer belt rotates around the front shaft and the rear shaft, and the bent plate on the conveyer belt scrapes the ploughed soil to move backwards.

In the preferred scheme, the anti-hitting sliding blocks are arranged at the two ends of the front shaft, and the bent plates on the conveying belt are poked during rotation. Simple structure, during the use, the conveyer belt bent plate bears soil, and overweight soil arouses the conveyer belt easily to skid, stirs the bent plate when the anti-skidding piece at front axle both ends is rotatory along with the axis body, can avoid skidding.

In a preferred scheme, the separating mechanism comprises a separating screen connected with a front separating shaft and a rear separating shaft, and a power shaft connected with a belt of the rear separating shaft. Simple structure, during the use, the soil that mixes the houttuynia cordata enters into the separation sieve, and the separation axle is rotatory before the drive of power shaft back separation axle drives, and the separation sieve rotates around preceding separation axle and back separation axle, and the soil falls from the separation sieve, and the houttuynia cordata rhizome rearward movement separates with soil.

In a preferred embodiment, the rear release shaft is a vibration shaft. Simple structure, during the use, the back separation axle that adopts the vibration axle produces centrifugal action at rotatory in-process with the eccentric block in the vibration wheel of vibration axle, and vibration axle vibration drives the separation sieve and vibrates at rotatory in-process, and its filters the effect of dividing the sieve better.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic top view of fig. 2.

Fig. 5 is a rear view of fig. 2.

In the figure: the device comprises a framework 1, a coulter 11, a connecting plate 12, a plough depth limiting mechanism 2, a support 21, a limiting roller 22, a cutting device 23, a conveying mechanism 3, a front shaft 31, a rear shaft 32, a conveying belt 33, a separating mechanism 4, a front separating shaft 41, a rear separating shaft 42, a separating screen 43 and a power shaft 44.

Detailed Description

As shown in fig. 1-5, a houttuynia cordata rhizome harvesting device comprises a framework 1, a plough depth limiting mechanism 2, a conveying mechanism 3 and a separating mechanism 4; the plough depth limiting mechanism 2 is positioned at the front end of the framework 1 and connected with the framework, the conveying mechanism 3 is positioned behind the plough depth limiting mechanism 2 and connected with the framework 1, the separating mechanism 4 is positioned behind the conveying mechanism 3 and connected with the framework 1, and the conveying mechanism 3 and the separating mechanism 4 are in transmission connection with each other; the conveying belt 33 of the conveying mechanism 3 and the separating screen 43 of the separating mechanism 4 are inclined to the rear upper side along the framework 1, and one end of the separating screen 43 is positioned below the conveying belt 33. Simple structure, be connected with the front end of skeleton 1 through plough dark stop gear 2, be connected with conveying mechanism 3 after being located plough dark stop gear 2, be connected with separating mechanism 4 after being located conveying mechanism 3, shovel into the degree of depth of soil through plough dark stop gear 2 control skeleton 1 front end coulter 11, carry the heartleaf houttuynia herb rhizome of mixing in soil to separating mechanism 4 through conveying mechanism 3, separate soil and heartleaf houttuynia herb rhizome through separating mechanism 4, the separation of limit pears soil limit, it is efficient to harvest, low in labor strength, be difficult for hindering the rhizome, avoid the rhizome large tracts of land cracked, easy operation is convenient.

In a preferable scheme, the framework 1 is a hollow frame structure, an inclined coulter 11 is arranged at the front end, and a connecting plate 12 is arranged at the rear end. Simple structure, during the use, connecting plate 12 at skeleton 1 rear end is used for being connected with propulsion equipment, and the output shaft that runs through connecting plate 12 is connected with propulsion equipment's driving medium, relies on the driving medium to drive the output shaft rotatory, and coulter 11 at skeleton 1 front end relies on propulsion equipment's thrust to go deep into soil.

Preferably, the coulter 11 is a plate with a slope in an inclined structure, and the front end of the plate is provided with a cutting edge to reduce the resistance between the coulter and soil.

Preferably, the connecting plate 12 is a bent plate with a groove-shaped structure, an output shaft is arranged on the bent plate, and the connecting plate 12 is connected with the propelling device during the installation process.

Preferably, propulsion equipment is the tracked vehicle, and the track has increased the contact surface with the soil top layer, avoids skidding because of soil moisture is too big.

In a preferred scheme, the plough depth limiting mechanism 2 comprises a bracket 21 connected with the framework 1 and a limiting roller 22 in sliding fit with the bracket 21. Simple structure, during the use, spacing gyro wheel 22 and the contact of soil top layer, at the in-process that propulsion plant gos forward, spacing gyro wheel 22 rolls with the contact of soil, and the degree of depth that restriction coulter 11 gos deep into soil avoids coulter 11 to lead to propulsion plant to be obstructed more deeply more than pears.

In a preferred scheme, one side or two sides of the bracket 21 are provided with cutting devices 23 with adjustable heights. Simple structure, during the use, cutting device 23 is used for cutting off the rhizome of houttuyniae, avoids its winding to influence on 11 coulters and carries, when the houttuyniae was planted and is adopted single ridge to plant, one side set up cutting device 23 can, when adopting many ridges to plant, both sides set up cutting device 23, cut off the houttuyniae rhizome of planting both sides in the ground simultaneously, when propulsion equipment gyration results once more, demolish cutting device 23 of one of them side, avoid causing the rhizome large tracts of land cracked, damaged.

Preferably, the cutting device 23 comprises a cutting blade connected with a support arm, the support arm is in sliding fit with the support frame 21 of the plough depth limiting mechanism 2, the locking screw is locked, the height of the support arm connected with the support frame 21 can be adjusted according to the planting depth of the houttuynia cordata, so that the depth of the cutting blade penetrating into the soil can be adjusted, when in use, the cutting blade penetrates into the soil, and the cutting blade is pushed to rotate around the support arm to advance and cut the rootstalk of the houttuynia cordata in the soil by means of the thrust of the.

In a preferred scheme, the limiting roller 22 comprises a connecting shaft penetrating through the hollow roller, an openable cover plate is arranged on the hollow roller, and the connecting shaft is in sliding fit with the bracket 21. The structure is simple, when in use, the connecting shaft penetrating through the hollow roller can slide along the sliding groove on the bracket 21, thereby adjusting the height difference with the coulter 11 and limiting the depth of the coulter 11 penetrating into soil.

Preferably, when the flatness of the surface layer of the planting soil is large, the cover plate can be opened, iron sand is poured into the hollow roller, the locking nut for locking the connecting shaft is loosened, the hollow roller is in contact with the surface layer of the soil by the dead weight of the hollow roller after the iron sand is poured, the hollow roller freely rolls on the uneven surface layer of the soil, and the depth of the coulter 11 penetrating into the soil is automatically limited.

In a preferred scheme, the conveying mechanism 3 comprises a conveying belt 33 with a front shaft 31 and a rear shaft 32 matched, and the front shaft 31 and the rear shaft 32 are connected with the framework 1. The structure is simple, when in use, the rear shaft 32 of the conveying mechanism 3 is connected with an output shaft belt on the connecting plate 12 or connected with a front separating shaft 41 belt of the separating mechanism 4, the conveying belt 33 is driven to rotate by the output shaft or the front separating shaft 41, and soil which is ploughed out and mixed with the roots and stems of the houttuynia cordata is conveyed by the conveying belt 33 and moves backwards to the separating mechanism 4.

Preferably, baffles are provided on both sides of the conveyor belt 33 to prevent soil from falling sideways during transport.

Preferably, a multi-stage gearbox is arranged between the rear shaft 32 and the output shaft on the connecting plate 12, the gearbox is connected with the output shaft and the rear shaft 32 in a chain mode, the rotating speed of the conveying mechanism 3 is controlled through the multi-stage gearbox, when soil on the conveying belt 33 is excessively accumulated and the soil on the separating mechanism 4 is not separated, the position can be switched to a neutral position, and after the soil on the separating mechanism 4 is separated, gear switching is carried out.

In a preferred scheme, the conveying belt 33 is matched with shaft wheels at two ends of the front shaft 31 and the rear shaft 32, and a bent plate is connected with the conveying belt 33. The structure is simple, when in use, the conveyer belt 33 rotates around the front shaft 31 and the rear shaft 32, and the bent plate on the conveyer belt 33 scrapes the ploughed soil to move backwards.

Preferably, the distance between the bent plates connected with the conveying belt 33 is adjusted according to the looseness of the soil, the looser the soil is, the smaller the distance between the bent plates is, and the situation that the soil mixed with the houttuynia cordata falls from the distance between the bent plates before never entering the separating mechanism 4 to cause harvest omission is avoided.

In a preferred scheme, anti-hitting sliding blocks are arranged at two ends of the front shaft 31, and the bent plates on the conveying belt 33 are poked when the front shaft rotates. Simple structure, during the use, conveyer belt 33 bent plate bears soil, and overweight soil arouses conveyer belt 33 easily to skid, stirs the bent plate when the anti-skidding piece at front axle 31 both ends is rotatory along with the axis body, can avoid skidding.

In a preferred embodiment, the separating mechanism 4 comprises a separating screen 43 connected to the front separating shaft 41 and the rear separating shaft 42, and a power shaft 44 belt-connected to the rear separating shaft 42. Simple structure, during the use, the soil that mixes the houttuynia cordata enters into separation sieve 43, and separation axle 42 drives preceding separation axle 41 rotation after power shaft 44 drives, and separation sieve 43 rotates around preceding separation axle 41 and back separation axle 42, and the soil falls from separation sieve 43 whereabouts, and the houttuynia cordata rhizome moves backward and is separated with the soil.

Preferably, the separating screen 43 is a hollow net formed by connecting a soft wire rope to a circular rod, the circular rod is connected to a belt, and the mesh of the circular rod is used for filtering soil, and the roots and stems of each houttuynia cordata are twisted into a ball shape, so that the houttuynia cordata cannot easily fall from the mesh.

Preferably, the power shaft 44 is connected to a speed reducer belt or chain of the propulsion apparatus, or to an output shaft belt that extends through the connecting plate 12.

Preferably, baffles are provided on both sides of the separating screen 43 to prevent soil from falling sideways during transport.

Preferably, a sliding plate inclined to one side is arranged between the rear part of the separating screen 43 and the connecting plate 12 to receive the houttuynia cordata roots falling from the separating screen 43, and the houttuynia cordata roots enter the sliding plate with a groove-shaped structure and then slide to one side of the propelling device to be prevented from being crushed by the sliding plate.

In a preferred embodiment, the rear separation shaft 42 is a vibration shaft. Simple structure, during the use, the back separating shaft 42 that adopts the vibration axle produces centrifugal action with the eccentric block in the vibration wheel of vibration axle at rotatory in-process, and vibration axle vibration drives the in-process vibration of separation sieve 43 at rotatory, and its filters the effect of dividing the sieve better.

Preferably, a multi-stage gearbox is arranged between the rear separating shaft 42 and the power shaft 44, the multi-stage gearbox is connected with the power shaft 44 through a chain, when the multi-stage gearbox is used, gears are changed according to hardness of soil, and when the gears are changed, the rotating speed of the rear separating shaft 42 is changed, so that the vibration frequency of the separating screen 43 is changed, and screening efficiency is improved.

When the heartleaf houttuynia herb rhizome harvesting device is installed and used, the plough depth limiting mechanism 2 is connected with the front end of the framework 1, the conveying mechanism 3 is connected behind the plough depth limiting mechanism 2, the separating mechanism 4 is connected behind the conveying mechanism 3, the plough depth limiting mechanism 2 controls the depth of shoveling the plough knife 11 at the front end of the framework 1 into soil, the conveying mechanism 3 conveys the heartleaf houttuynia herb rhizome mixed in the soil to the separating mechanism 4, the separating mechanism 4 separates the soil and the heartleaf houttuynia herb, the soil and the soil are separated while the pear is used, the harvesting efficiency is high, the labor intensity is low, the rhizome is not easy to be damaged, the large-area rhizome fragmentation is avoided, and the operation is simple and convenient.

When the soil pushing device is used, the connecting plate 12 at the rear end of the framework 1 is used for being connected with pushing equipment, an output shaft penetrating through the connecting plate 12 is connected with a transmission piece of the pushing equipment, the transmission piece drives the output shaft to rotate, and the coulter 11 at the front end of the framework 1 penetrates into soil by means of the pushing force of the pushing equipment.

When the device is used, the limiting idler wheel 22 is in contact with the surface layer of soil, and in the advancing process of the propelling device, the limiting idler wheel 22 is in contact with the soil to roll, so that the depth of the coulter 11 penetrating into the soil is limited, and the situation that the propelling device is blocked due to the fact that the coulter 11 is deeper than a pear is avoided.

During the use, cutting device 23 is used for cutting off the rhizome of houttuyniae, avoids its winding to influence the transport on coulter 11, if the houttuyniae is planted and adopts single ridge when planting, one side set up cutting device 23 can, if adopt many ridges to plant, both sides set up cutting device 23, cut off the houttuyniae rhizome of both sides in planting the ground simultaneously, when gyration results once more, the cutting vestige of one side wherein coincides with the cutting vestige of original one side, avoid causing the rhizome large tracts of land cracked, damaged.

When the device is used, the connecting shaft penetrating through the hollow roller can slide along the sliding groove on the bracket 21, so that the height difference between the device and the coulter 11 is adjusted, and the depth of the coulter 11 penetrating into soil is limited.

When in use, the rear shaft 32 of the conveying mechanism 3 is connected with an output shaft belt on the connecting plate 12 or connected with a front separating shaft 41 belt of the separating mechanism 4, the conveying belt 33 is driven to rotate by the output shaft or the front separating shaft 41, and soil which is plowed out of the roots and stems of the houttuynia cordata is conveyed by the conveying belt 33 and moves backwards to the separating mechanism 4.

In use, the belt 33 rotates about the front and rear axles 31, 32 and the plough scrapes soil rearward on the belt 33.

During the use, conveyer belt 33 bent plate bears soil, and overweight soil arouses conveyer belt 33 easily to skid, stirs the bent plate when the anti-skidding piece at front axle 31 both ends is rotatory along with the axis body, can avoid skidding.

When the houttuynia cordata thunb-mixed soil is used, the soil mixed with the houttuynia cordata thunb enters the separating sieve 43, the rear separating shaft 42 is driven by the power shaft 44 to drive the front separating shaft 41 to rotate, the separating sieve 43 rotates around the front separating shaft 41 and the rear separating shaft 42, the soil falls down from the separating sieve 43, and the roots and stems of the houttuynia cordata thunb move backwards to be separated from the soil.

When the vibrating screen is used, the rear separating shaft 42 adopting the vibrating shaft generates a centrifugal effect with an eccentric block in a vibrating wheel of the vibrating shaft in the rotating process, the vibrating shaft vibrates to drive the separating screen 43 to vibrate in the rotating process, and the filtering and screening effects are better.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a heartleaf houttuynia herb rhizome harvesting device which characterized by: the device comprises a framework (1), a plough depth limiting mechanism (2), a conveying mechanism (3) and a separating mechanism (4); the plough depth limiting mechanism (2) is positioned at the front end of the framework (1) and connected with the framework, the conveying mechanism (3) is positioned behind the plough depth limiting mechanism (2) and connected with the framework (1), the separating mechanism (4) is positioned behind the conveying mechanism (3) and connected with the framework (1), and the conveying mechanism (3) and the separating mechanism (4) are in transmission connection with each other; the conveying belt (33) of the conveying mechanism (3) and the separating screen (43) of the separating mechanism (4) incline backwards and upwards along the framework (1), and one end of the separating screen (43) is positioned below the conveying belt (33).

2. The houttuynia cordata rhizome harvesting device of claim 1, wherein: the framework (1) is of a hollow frame structure, an inclined coulter (11) is arranged at the front end, and a connecting plate (12) is arranged at the rear end.

3. The houttuynia cordata rhizome harvesting device of claim 1, wherein: the plough depth limiting mechanism (2) comprises a support (21) connected with the framework (1) and a limiting roller (22) in sliding fit with the support (21).

4. The houttuynia cordata rhizome harvesting device of claim 3, wherein: one side or two sides of the bracket (21) are provided with cutting devices (23) with adjustable height.

5. The houttuynia cordata rhizome harvesting device of claim 3, wherein: the limiting idler wheel (22) comprises a connecting shaft penetrating through the hollow idler wheel, an openable cover plate is arranged on the hollow idler wheel, and the connecting shaft is in sliding fit with the support (21).

6. The houttuynia cordata rhizome harvesting device of claim 1, wherein: conveying mechanism (3) are including preceding axle (31) and rear axle (32) complex conveyer belt (33), and preceding axle (31) and rear axle (32) are connected with skeleton (1).

7. The houttuynia cordata rhizome harvesting device of claim 6, wherein: the conveyer belt (33) is matched with shaft wheels at two ends of the front shaft (31) and the rear shaft (32), and a bent plate is connected with the conveyer belt (33).

8. The houttuynia cordata rhizome harvesting device of claim 7, wherein: and anti-hitting sliding blocks are arranged at two ends of the front shaft (31) and used for poking the bent plate on the conveying belt (33) during rotation.

9. The houttuynia cordata rhizome harvesting device of claim 1, wherein: the separating mechanism (4) comprises a separating screen (43) connected with the front separating shaft (41) and the rear separating shaft (42) and a power shaft (44) connected with the rear separating shaft (42) through a belt.

10. The houttuynia cordata rhizome harvesting device of claim 9, wherein: the rear release shaft (42) is a vibration shaft.