Double-row harvesting and conveying device

By designing a double-row harvesting and conveying device and utilizing the adjustment devices of the clamping and conveying mechanism and the cutting mechanism, the problem of poor harvesting effect of existing harvesters under different planting densities and row spacings has been solved, achieving a highly efficient and adaptable harvesting effect.

CN223912968UActive Publication Date: 2026-02-17QINGDAO AGRI UNIV
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Patent Information

Application Number
CN202520981154.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-02-17
Estimated Expiration
2035-05-19

AI Technical Summary

Technical Problem

Existing harvesters have poor harvesting results when faced with chives with different planting densities and row spacing, and cannot effectively adapt to different planting conditions.

Method used

Design a double-row harvesting and conveying device, including two clamping and conveying mechanisms and a cutting mechanism. The spacing between the clamping and conveying mechanisms is adjusted by a first driving device, and the tension of the clamping belt is adjusted by an adjusting device and a screw spring assembly. Combined with a movable base and an electric push rod, it can achieve adaptive adjustment for different planting densities and row spacings.

Benefits of technology

It enables efficient harvesting of chives with different planting densities and row spacing, improves the applicability and working efficiency of the harvester, and reduces labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a double-row harvesting and conveying device which is installed on a harvester, can be used for orderly harvesting long and thin stalk leaf vegetables such as fragrant-flowered garlic and spinach and comprises two clamping and conveying mechanisms and two cutting mechanisms, the distance between the two clamping and conveying mechanisms is adjusted through a first driving device, and the first driving device is installed on a main body of the harvester. The first driving device is connected with one clamping and conveying mechanism, and the cutting mechanism is connected to the lower rear portion of the clamping and conveying mechanism. The clamping and conveying mechanism comprises two conveying parts arranged in parallel, and each conveying part comprises two belt supporting hubs, a clamping belt wound on the belt supporting hubs and an adjusting device located between the two belt supporting hubs. The adjusting device is used for adjusting tensioning of the clamping belts so as to adjust the distance between the clamping belts of the adjacent conveying components. The double-row harvesting and conveying device can be adjusted according to the planting density of each row of long and thin stalk leaf vegetables and planting gaps among multiple crops, and is high in applicability.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of harvester, concretely relates to a double -row harvesting conveying device for being applied to harvester. BACKGROUND

[0002] Traditional leek and other slender stem and leaf vegetables harvesting operations are generally carried out by manual operation of a knife, which is labor-intensive, requires more labor, and has low work efficiency. The existing harvester has replaced the traditional manual operation to some extent, reduced labor intensity, and improved work efficiency. However, the existing harvester has the problem of poor harvesting effect if the planting density of each row of leeks and the row spacing between multiple rows of leeks are different. SUMMARY

[0003] To solve the defects in the prior art, the utility model provides a double -row harvesting conveying device, which can be adjusted according to the planting density of each row of leeks and the row spacing between multiple rows of leeks, and has strong applicability. The scheme is as follows:

[0004] A double -row harvesting conveying device is installed on a harvester and includes two clamping conveying mechanisms and two cutting mechanisms. The spacing of the two clamping conveying mechanisms is adjusted by a first driving device, which is installed on the main body of the harvester. The first driving device is connected to one of the clamping conveying mechanisms. The cutting mechanism is connected to the lower rear part of the clamping conveying mechanism. The clamping conveying mechanism includes two parallel conveying components. The conveying component includes two belt support hubs, a clamping belt wound around the belt support hubs, and an adjusting device between the two belt support hubs. The adjusting device is used to adjust the tension of the clamping belt to adjust the distance between adjacent clamping belts.

[0005] Further, the double -row harvesting conveying device further includes a fixed base and a moving base. The two clamping conveying mechanisms are connected one-to-one to the fixed base and the moving base. The first driving device is connected to the moving base to drive the moving base to move. The moving base moves synchronously to drive the conveying component connected to the moving base to move. The conveying component further includes a belt line group support, a weeder, and a second driving device. The weeder is connected to one end of the belt line group support. The belt support hubs are connected to both ends of the belt line group support. The adjusting device is connected to the belt line group support. The second driving device is connected to one of the belt support hubs to drive the clamping belt to rotate along the belt support hub and the adjusting device.

[0006] Further, the adjusting device comprises two sets of tensioning wheel assemblies and screw spring assemblies; the tensioning wheel assembly is connected to the belt line set support and located between the two belt support hubs, the tensioning wheel assembly comprises two support wheels, the two ends of the two support wheels are respectively connected with connecting pieces, the connecting pieces are hinged to the belt line set support; the screw spring assembly is connected to the belt line set support and one support wheel respectively, and the angle between the tensioning wheel assembly and the belt line set support is changed by adjusting the spring force of the screw spring assembly.

[0007] Further, the belt line set support comprises two support plates arranged in parallel and a support column located between the two support plates, and the two ends of the belt support hub are respectively hinged to the two support plates.

[0008] The middle part of the connecting piece is hinged to the support plate, and the two ends of the connecting piece are respectively hinged to the support wheels.

[0009] Further, the screw spring assembly located at the lower part of the conveying component is not located at the same side as the screw spring assembly located at the upper part of the conveying component; the screw spring assembly located at the lower part of the conveying component is oppositely arranged with the screw spring assembly located at the lower part of the conveying component used in pairs, and the screw spring assembly located at the upper part of the conveying component is oppositely arranged with the screw spring assembly located at the upper part of the conveying component used in pairs.

[0010] Further, the connecting piece is a V-shaped plate, the tip of the V-shaped plate is hinged to the support plate through a pin shaft, and the two rod parts of the open end of the V-shaped plate are respectively connected to the ends of the support wheels.

[0011] Further, the cutting mechanism is located behind the reaping device and comprises a cutting support, a cutter and a third driving device, the cutting support is connected to the belt line set support, the third driving device is arranged on the cutting support, and the third driving device is connected to the cutter through a shaft coupling and used for driving the cutter to rotate.

[0012] Further, the first driving device is an electric push rod.

[0013] Further, the second driving device comprises a DC speed reduction motor.

[0014] Further, the third driving device is an electric motor.

[0015] Compared with the prior art, the advantages of the utility model are as follows:

[0016] The utility model discloses an embodiment through gather leek to the cutter position of prong, again be gathered to the conveying component, realize to leek quick neat cutting transmission, set up screw spring subassembly passes through adjusting the position of tension pulley assembly to adjust the clamping belt spacing, to adapt to different planting density leek row spacing harvesting after clamping transmission demand, set up mobile base and electric push rod, realize the distance of changing the belt line group between reach the purpose of harvesting different row spacing leek. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is whole structure side view schematic drawing of the double row harvesting conveying device of the utility model embodiment for a certain visual angle;

[0018] Figure 2 It is whole structure side view schematic drawing of the double row harvesting conveying device of the utility model embodiment;

[0019] Figure 3 It is whole structure side view schematic drawing of the double row harvesting conveying device of the utility model embodiment for another visual angle;

[0020] Figure 4 It is the structure schematic drawing of the connection of fixed base and mobile base of the utility model embodiment;

[0021] Figure 5 It is the structure schematic drawing of mobile base of the utility model embodiment;

[0022] Figure 6 It is the structure schematic drawing of clamping conveying mechanism of the utility model embodiment for a certain visual angle;

[0023] Figure 7 It is the structure schematic drawing of clamping conveying mechanism of the utility model embodiment for another visual angle;

[0024] Figure 8 It is the structure schematic drawing of clamping conveying mechanism of the utility model embodiment for still another visual angle;

[0025] Figure 9 It is the structure schematic drawing of cutting mechanism of the utility model embodiment.

[0026] In above each drawing: 10, clamping conveying mechanism;100, conveying component;110, belt line group support;111, support plate;112, support column;120, prong;130, belt support wheel hub;140, clamping belt;150, second driving device;160, adjusting device;161, tension pulley assembly;1611, support wheel;1612, connecting piece;162, screw spring subassembly;20, cutting mechanism;21, cutting support;22, cutter;23, third driving device;24, coupling;300, first driving device;410, fixed base;420, mobile base;430, sliding assembly. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present application, the specific embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0028] As shown in Figures 1-9 , the present application provides a double-row harvesting and conveying device, which is installed on a harvester and comprises two clamping and conveying mechanisms 10 and two cutting mechanisms 20. The spacing between the two clamping and conveying mechanisms 10 is adjusted by a first driving device 300, which is installed on the main body of the harvester and connected to one of the clamping and conveying mechanisms 10. The cutting mechanisms 20 are connected to the lower rear part of the clamping and conveying mechanisms 10.

[0029] Further, the double-row harvesting and conveying device further comprises a fixed base 410 and a movable base 420. The two clamping and conveying mechanisms 10 are connected to the fixed base 410 and the movable base 420 in a one-to-one manner. The first driving device 300 is connected to the movable base 420 to drive the movable base 420 to move, and the movement of the movable base 420 synchronously drives the conveying components 100 connected to the movable base 420 to move. In this way, the spacing between the multiple rows of leeks can be adaptively adjusted.

[0030] As shown in Figure 4 , 5 , specifically, the fixed base 410 is installed on the main body of the harvester, for example, by welding or bolted connection. In order to have a good guiding function when the movable base 420 moves, the movable base 420 is connected to the main body of the harvester through a sliding assembly 430. In this embodiment, the sliding assembly 430 is selected as a sliding rail and a sliding block, which are respectively fixed on the movable base 420 and the main body of the harvester by bolts. The upper ends of the fixed base 410 and the movable base 420 are installed with the conveying components 100.

[0031] In this embodiment, the first driving device 300 is an electric push rod, which is fixedly installed on the main body of the harvester, and the movable end of the electric push rod is connected to the movable base 420.

[0032] The clamping and conveying mechanism 10 comprises two conveying components 100 arranged in parallel. As shown in Figures 6-8 , specifically, the conveying component 100 comprises a belt line group support 110, a reed 120, a belt support hub 130, a clamping belt 140, a second driving device 150, and an adjusting device 160 for adjusting the tension of the clamping belt 140.

[0033] The whipper 120 is connected to one end of the belt line set support 110 by screws. The belt line set support 110 comprises two support plates 111 arranged in parallel and a support column 112 between the two support plates 111. The two ends of the belt support hub 130 are respectively hinged to the upper and lower support plates 111.

[0034] The two belt support hubs 130 are installed at the two ends of the belt line set support 110. The adjusting device 160 is located between the two belt support hubs 130 and is connected to the belt line set support 110. The clamped belt 140 is wound around the belt support hub 130. The second driving device 150 is connected to one of the belt support hubs 130 to drive the clamped belt 140 to rotate around the belt support hub 130 and the adjusting device 160. In this way, the planting density of each row of chives can be adjusted adaptively.

[0035] In this embodiment, the second driving device 150 is a DC speed reduction motor. The DC speed reduction motor is fixedly installed on the support plate 111 of the belt line set support 110. The output shaft of the DC speed reduction motor is connected to one end of the belt support hub 130 to drive the belt support hub 130 to rotate synchronously, thereby driving the clamped belt 140 to rotate.

[0036] Further, the adjusting device 160 comprises two sets of tensioner assemblies 161 and screw spring assemblies 162. The tensioner assemblies 161 are connected to the belt line set support 110 and are located between the two belt support hubs 130. The tensioner assembly 161 comprises two support wheels 1611. The two ends of the two support wheels 1611 are respectively connected to a connecting piece 1612. The connecting piece 1612 is hinged to the support plate 111 of the belt line set support 110. The screw spring assembly 162 is connected to the support plate 111 and one of the support wheels 1611. The spring force of the screw spring assembly 162 is adjusted to change the included angle between the tensioner assembly 161 and the belt line set support 110.

[0037] The screw spring assembly 162 is a purchased component. The rotating adjusting screw compresses or releases the spring force to achieve the adjusting effect. The tensioner assembly 161 is hinged to the nut column of the screw spring assembly 162.

[0038] Further, the middle part of the connecting piece 1612 is hinged to the support plate 111. The two ends of the connecting piece 1612 are respectively hinged to the support wheels 1611.

[0039] As shown in the drawings, Figure 7 In this embodiment, the connecting piece 1612 is a V-shaped plate. The tip of the V-shaped plate is hinged to the support plate 111 by a pin shaft. The two rod portions of the open end of the V-shaped plate are respectively connected to the end portions of the support wheels 1611.

[0040] As shown in the drawings, Figures 6-8As shown, in order to better adjust effect, the screw spring assembly 162 located at the lower part of the conveying component 100 is not on the same side with the screw spring assembly 162 located at the upper part of the conveying component 100; the screw spring assembly 162 located at the lower part of the conveying component 100 is oppositely arranged with the screw spring assembly 162 located at the lower part of the conveying component 100 used in pairs; the screw spring assembly 162 located at the upper part of the conveying component 100 is oppositely arranged with the screw spring assembly 162 located at the upper part of the conveying component 100 used in pairs.

[0041] As shown in the drawings, Figure 9 The cutting mechanism 20 is located at the rear of the harrow 120, and comprises a cutting support 21, a cutter 22 and a third driving device 23; the cutting support 21 is fixedly connected with the belt line group support 110 through screws; the cutter 22 is arranged at the bottom of the cutter 22 support; the third driving device 23 is fixed on the cutter 22 support through bolts; in this embodiment, the third driving device 23 is selected as a motor; the motor is connected with the cutter 22 through a shaft coupling 24 and is used for driving the cutter 22 to rotate; the shaft coupling 24 is selected as a 90° shaft coupling and is used for transmitting the horizontal motor power to the cutter 22 in the vertical direction.

[0042] The working principle of the double-row harvesting conveying device is introduced by taking leek harvesting as an example:

[0043] When the harvester moves forward, the leeks are gathered to the position of the cutter 22 by the harrow 120, so that the leeks can be cut in an orderly manner; the leeks harvested in the harvester moving forward are gathered and straightened to the clamping conveying mechanism 10; the second driving device 150 provides a transmission belt driving power source, drives the belt support hub 130 to rotate, thereby driving the clamping belt 140 to rotate and driving the harvested leeks to smoothly enter the next process. Before the harvester works, the stroke of the screw on the screw spring assembly 1621 on the nut column can be adjusted to change the distance between the support wheels 1611 of the tensioning wheel assembly 161, so as to control the width of the clamping belt opening, thereby changing the clamping degree and realizing adaptive adjustment according to the planting density of each row of leeks.

[0044] The above-mentioned embodiments of the utility model do not constitute the limitation to the protection scope of the utility model. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A dual row harvesting conveyor for mounting on a harvester, characterised in that, The double-row harvesting and conveying device comprises two clamping conveying mechanisms (10) and two cutting mechanisms (20), the distance between the two clamping conveying mechanisms (10) is adjusted by a first driving device (300) which is installed on the main body of the harvester and connected with one of the clamping conveying mechanisms (10), and the cutting mechanisms (20) are connected to the lower rear part of the clamping conveying mechanisms (10).

2. The twin row harvesting conveyor of claim 1, wherein, The double-row harvesting and conveying device further comprises a fixed base (410) and a movable base (420), the two clamping conveying mechanisms (10) are connected to the fixed base (410) and the movable base (420) respectively, the first driving device (300) is connected to the movable base (420) and used to drive the movable base (420) to move, and the movable base (420) moves synchronously to drive the conveying mechanisms (100) connected to the movable base (420) to move. The conveying mechanism (100) further comprises a belt line group support (110), a crop divaricator (120) and a second driving device (150), the crop divaricator (120) is connected to one end of the belt line group support (110), the belt support hubs (130) are connected to the two ends of the belt line group support (110), the adjusting device (160) is connected to the belt line group support (110), and the second driving device (150) is connected to one of the belt support hubs (130) and used to drive the clamping belt (140) to rotate along the belt support hub (130) and the adjusting device (160).

3. The twin row harvesting conveyor of claim 2, wherein, The adjusting device (160) comprises two sets of tensioning wheel assemblies (161) and a screw spring assembly (162), the tensioning wheel assemblies (161) are connected to the belt line group support (110) and located between the two belt support hubs (130), each tensioning wheel assembly (161) comprises two support wheels (1611), the two ends of each support wheel (1611) are connected with a connecting piece (1612), and the connecting piece (1612) is hinged to the belt line group support (110), the screw spring assembly (162) is connected to the belt line group support (110) and one support wheel (1611) respectively, and the angle between the tensioning wheel assembly (161) and the belt line group support (110) is changed by adjusting the spring force of the screw spring assembly (162).

4. The twin row harvesting conveyor of claim 3, wherein, The belt line group support (110) comprises two support plates (111) arranged in parallel and a support column (112) located between the two support plates (111), and the two ends of the belt support hub (130) are hinged to the two support plates (111) respectively. The middle part of the connecting piece (1612) is hinged with the support plate (111), and the two ends of the connecting piece (1612) are respectively hinged with the support wheels (1611).

5. The twin row harvesting conveyor of claim 3, wherein, The screw spring assembly (162) located at the lower part of the conveying component (100) is not on the same side as the screw spring assembly (162) located at the upper part of the conveying component (100); the screw spring assembly (162) located at the lower part of the conveying component (100) is oppositely arranged with the screw spring assembly (162) located at the lower part of the conveying component (100) used in pairs; and the screw spring assembly (162) located at the upper part of the conveying component (100) is oppositely arranged with the screw spring assembly (162) located at the upper part of the conveying component (100) used in pairs.

6. The twin row harvesting conveyor of claim 3, wherein, The connecting piece (1612) is a V-shaped plate, the tip of the V-shaped plate is hinged with the support plate (111) through a pin shaft, and the two rod parts of the open end of the V-shaped plate are respectively connected with the end parts of the support wheels (1611).

7. The twin row harvesting conveyor of claim 2, wherein, The cutting mechanism (20) is located at the rear of the duster (120) and comprises a cutting support (21), a cutter (22) and a third driving device (23); the cutting support (21) is connected with the belt line group support (110); the third driving device (23) is arranged on the cutting support (21); the third driving device (23) is connected with the cutter (22) through a shaft coupling (24) and is used for driving the cutter (22) to rotate.

8. The twin row harvesting conveyor of claim 1, wherein, The first driving device (300) is an electric push rod.

9. The twin row harvesting conveyor of claim 2, wherein, The second driving device (150) comprises a direct-current speed reduction motor.

10. The twin row harvesting conveyor of claim 7, wherein, The third driving device (23) is an electric motor. The third driving device (23) is an electric motor.