Crop leaf harvester

Abstract

The invention discloses a crop leaf harvester which comprises an air inlet channel, and the air inlet channel comprises an air inlet end allowing air to enter; the device further comprises a collecting channel, the collecting channel comprises a shearing end provided with a shearing device and a collecting end provided with a collecting device and communicated with the shearing end, and the air inlet channel is connected to the middle of the collecting channel and communicated with gas of the collecting channel. And therefore, wind power flows to the collecting device from the air inlet channel through the collecting channel, and negative pressure is generated at the shearing end. The crop leaf harvester provided by the invention can efficiently and accurately collect crop leaves.

Description

Technical Field

[0001] The present application relates to crop harvesting equipment, and in particular to a crop leaf harvester. Background Art

[0002] Under existing technology, the harvesting of crops, such as tea leaves and mugwort, requires precise picking of leaves. Currently, most of the work is done manually, which is not only time-consuming and labor-intensive, but also very inefficient.

[0003] Therefore, providing a solution for efficiently and accurately collecting crop leaves has become a technical problem that needs to be solved in the field. Summary of the invention

[0004] In view of this, the present application proposes a crop leaf harvester that can efficiently and accurately collect crop leaves.

[0005] The crop leaf harvester according to the technical solution of the present application includes: an air inlet channel, which includes an air inlet end for allowing air to enter; and a collecting channel, which includes a shearing end provided with a shearing device and a collecting end provided with a collecting device and communicated with the shearing end, wherein the air inlet channel is connected to the middle part of the collecting channel and is in gas communication with the collecting channel, so that wind flows from the air inlet channel through the collecting channel to the collecting device and generates negative pressure at the shearing end.

[0006] Preferably, a boost mechanism is provided in the middle of the collecting channel, and the boost mechanism includes a boost air passage for increasing the airflow pressure, and the boost air passage is downstream of the airflow passing through the air intake end and upstream of the airflow passing through the collecting end.

[0007] Preferably, the boosting mechanism comprises a large-diameter tube and a small-diameter tube, and the boosting airway is arranged between the large-diameter tube and the small-diameter tube; the diameter of the large-diameter tube is larger than the diameter of the small-diameter tube, and the diameter at the boosting airway is smaller than or equal to the diameter of the small-diameter tube.

[0008] Preferably, the large-diameter tube is a conical tube having a conical through hole, and the front portion of the large diameter is fixedly connected to the inner wall of the shearing end;

[0009] The small-diameter tube has a through hole, and the rear portion is fixedly connected to the interior of the collecting end;

[0010] The rear part of the large-diameter tube and the front part of the small-diameter tube are arranged in a non-contact manner, and the air path between the parts that overlap each other without contact in space becomes the boost air path; the connection position between the large-diameter tube and the shear end is located between the through vent of the air inlet channel and the collecting channel and the shear end.

[0011] Preferably, the crop leaf harvester comprises a lower shell and an upper shell, wherein the lower shell is arranged at an angle to the upper shell.

[0012] Preferably, the shearing device comprises a shearing blade assembly and a shearing power assembly, wherein the shearing blade assembly is fixedly arranged at the front end of the upper shell, and the movement trajectory surrounds the collecting channel.

[0013] Preferably, the shear blade assembly comprises a rotating blade, the rotating blade comprises a cylindrical fixed portion and a rotating blade tooth, the rotating blade tooth comprises an annular rotating cutting edge, and the projection of the rotating cutting edge is consistent with the shape of the fixed portion; and / or

[0014] The shear blade assembly further comprises a shear blade, and the shear blade is sleeved on the circumference of the rotating blade;

[0015] The shearing blade comprises a cylindrical shearing fixing portion and shearing teeth, wherein the shearing teeth comprise an annular shearing edge, and the projection of the shearing edge is consistent with the shape of the shearing fixing portion.

[0016] Preferably, the shear blade is stationary or rotates in the opposite direction to the rotating blade;

[0017] The rotating blade teeth are evenly distributed on the fixing portion in the circumferential direction, and the rotating blade teeth are triangular saw teeth; or the shearing blade teeth are evenly distributed on the shear fixing portion in the circumferential direction, and the shearing blade teeth are triangular saw teeth;

[0018] Preferably, the rotating blade teeth and the shearing blade teeth are both annular toothed cutters, and the tooth shapes and sizes are different.

[0019] Preferably, the shearing power assembly comprises a motor, a transmission gear and a meshing gear fixed to the upper shell, the transmission gear is fixedly connected to the output shaft of the motor, and the meshing gear is fixedly connected to the fixing portion.

[0020] Preferably, a blowing device is provided inside the lower shell, the blowing device comprises a power source and an air supply component, and the air supply component is rotatably electrically connected to the power source; or

[0021] The lower end surface of the lower shell is sealed, and a plurality of air inlet holes are arranged on the circumferential shell wall at the lower part of the lower shell.

[0022] The crop leaf harvester according to the technical solution of the present application realizes an integrated harvesting design, so that after the machine has picked the required crop leaves, the crop leaves can be collected accurately and quickly.

[0023] The present invention adopts a shearing mechanism with relative rotational motion, making the shearing action sharper; since the toothed knife is a circular toothed knife, the 360-degree cutting area without dead angles enables the toothed knife to only cover the crops to be harvested, and the crops can be successfully picked regardless of the growth state of the stems.

[0024] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a structural front view of the crop leaf harvester of the present application;

[0027] Figure 2 This is a left side view of the structure of the crop leaf harvester of the present application;

[0028] Figure 3 A top view of the structure of the crop leaf harvester of the present application;

[0029] Figure 4 A partial cross-sectional view of the crop leaf harvester of the present application;

[0030] Figure 5 A three-dimensional diagram of the crop leaf harvester of the present application.

[0031] Description of the drawings: 10-air inlet channel; 11-air inlet end; 20-collecting channel; 21-cutting end; 22-collecting end; 1-lower shell; 2-upper shell; 3-cutting device; 31-cutting blade assembly; 311-rotating blade; 3111-fixing part; 3112-rotating blade teeth; 312-cutting blade; 3121-cutting fixing part; 3122-cutting blade teeth; 32-cutting power assembly; 321-motor; 322-transmission gear; 323-driving gear; 324-motor; 325-transmission gear; 326-driving gear; 41-power source; 42-air supply assembly; 5-boosting structure; 51-large-diameter pipe; 52-small-diameter pipe; 53-boosting mechanism; DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods. Obviously, the drawings described below are only some implementation methods of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with specific implementation methods.

[0034] First specific embodiment

[0035] like Figure 1 A crop leaf harvester is shown, comprising:

[0036] An air inlet passage 10, the air inlet passage 10 comprising an air inlet end 11 for allowing air to enter;

[0037] The collecting channel 20 includes a shearing end 21 provided with a shearing device 3 and a collecting end 22 provided with a collecting device and communicating with the shearing end 21. The air inlet channel 10 is connected to the middle of the collecting channel 20 and is in gas communication with the collecting channel 20, so that wind flows from the air inlet channel 10 through the collecting channel 20 to the collecting device and generates negative pressure at the shearing end 21.

[0038] The crop leaf harvester of this embodiment discharges the wind in the air inlet channel 10 through the collecting end 22 of the collecting channel 20, so that the shearing end 21 generates negative pressure, which facilitates the crop leaves sheared by the shearing end 21 to be sucked into the collecting device of the collecting end 22, thereby achieving the purpose of quickly collecting the crop leaves.

[0039] Second specific embodiment

[0040] The difference between this embodiment and embodiment one is that a boost mechanism 5 is arranged in the middle of the collecting channel 20, and the boost mechanism 5 includes a boost air passage 53 for increasing the air flow pressure, and the boost air passage 53 is downstream of the air flow passing through the intake end 11 and upstream of the air flow passing through the collecting end 22.

[0041] In order to increase the negative pressure value of the shear end 21 of the collection channel 20 and improve the suction force of absorbing crop leaves, a booster mechanism 5 is added. The setting of the booster mechanism 5 forms a booster channel 53, which can greatly improve the collection capacity of crop leaves.

[0042] Third specific embodiment

[0043] This embodiment provides a specific structure of the boosting mechanism in embodiment 2: the boosting mechanism 5 includes a large-diameter tube 51 and a small-diameter tube 52, and a boosting air duct 53 is arranged between the large-diameter tube 51 and the small-diameter tube 52; the diameter of the large-diameter tube 51 is larger than the diameter of the small-diameter tube 52, and the diameter at the boosting air duct 53 is smaller than or equal to the diameter of the small-diameter tube 52.

[0044] The boosting mechanism 5 in this embodiment restricts the shape of the boosting channel 53 to form a bell-mouth shape with a reduced diameter, thereby further increasing the negative pressure and further improving the collection capacity of the crop leaves.

[0045] Fourth specific embodiment

[0046] The difference between this embodiment and the third embodiment is that the large-diameter tube 51 is a conical tube with a conical through hole, and the front part of the large-diameter tube 51 is fixedly connected to the inner wall of the shear end 21;

[0047] The small-diameter tube 52 has a through hole, and the rear portion is fixedly connected to the interior of the collecting end 22;

[0048] The rear part of the large-diameter tube 51 and the front part of the small-diameter tube 52 are arranged in a non-contact manner, and the air path between the parts that overlap with each other in space without contact becomes a pressurized air path 53; the connection position of the large-diameter tube 51 and the shear end 21 is located between the through vent of the air inlet channel 10 and the collecting channel 20 and the shear end 21.

[0049] This embodiment further limits the shapes of the large-diameter tube 51 and the small-diameter tube 52 and the structure of the connection portion between the two on the basis of the third embodiment. The pressurized air path 53 formed by the air path between the parts of the two that overlap without contacting each other in space reduces the cross-sectional area of ​​the air path for air flow, thereby further increasing the negative pressure value and improving the collection capacity of crop leaves.

[0050] Fifth specific embodiment

[0051] The difference between this embodiment and the first embodiment is that:

[0052] The crop leaf harvester comprises a lower shell 1 and an upper shell 2 , wherein the lower shell 1 and the upper shell 2 are arranged at an angle.

[0053] The angle setting between the lower shell 1 and the upper shell 2 can make it easier for users to grasp and reduce labor intensity.

[0054] Sixth Specific Embodiment

[0055] As attached Figure 2-4 As shown, the difference between this embodiment and the first or fifth embodiment is that a specific structure of a shearing device 3 is provided:

[0056] The shearing device 3 comprises a shearing blade assembly 31 and a shearing power assembly 32 . The shearing blade assembly 31 is fixedly arranged at the front end of the upper shell 2 , and its movement track surrounds the collecting channel 20 .

[0057] The shear blade assembly 31 includes a rotating blade 311, which includes a cylindrical fixing portion 3111 and a rotating blade tooth 3112, wherein the rotating blade tooth 3112 includes an annular rotating cutting edge, and the projection of the rotating cutting edge is consistent with the shape of the fixing portion 3111;

[0058] The shear blade assembly 31 further includes a shear blade 312, which is sleeved on the circumference of the rotating blade 311;

[0059] The shearing blade 312 includes a cylindrical shearing fixing portion 3121 and a shearing tooth 3122 . The shearing tooth 3122 includes an annular shearing edge. The projection of the shearing edge is consistent with the shape of the shearing fixing portion 3121 .

[0060] The shearing device 3 disclosed in this embodiment is a structure that realizes the shearing function through the relative movement of the rotating blade 311 and the shearing blade 312. The specific tooth shapes of the rotating blade 311 and the shearing blade 312 are not limited. What is important is that the projection of the rotating blade edge is consistent with the shape of the fixing part 3111; the projection of the shearing blade edge is consistent with the shape of the shearing fixing part 3121, both of which are circular. This ensures that the shearing function can be realized through relative rotational movement between the rotating blade 311 and the shearing blade 312. This structure has a fast shearing speed, a controllable shearing range, and is not easy to damage. It is safer than the linear shearing structure under the prior art. When shearing the petioles and stems of crops, the petioles and stems can be located in the spatial range within the circular shearing trajectory. The blades of the circular shearing trajectory only act on the petioles and stems, and will not cause damage to the leaves and fruits.

[0061] Seventh specific embodiment

[0062] The difference between this specific embodiment and the sixth specific embodiment is that:

[0063] The shear blade 312 is stationary or rotates in the opposite direction to the rotating blade 311;

[0064] The rotating blade teeth 3112 are evenly distributed on the fixed portion 3111 in the circumferential direction, and the rotating blade teeth 3112 are triangular saw teeth; or

[0065] The shearing teeth 3122 are evenly distributed on the shearing fixing portion 3121 in the circumferential direction, and the shearing teeth 3122 are triangular saw teeth;

[0066] Preferably, the rotating blade teeth 3112 and the shearing blade teeth 3122 are both circular ring-shaped toothed cutters, and the tooth shapes and sizes are different.

[0067] In this specific embodiment, preferably, the number of teeth of the shearing teeth 3122 is set to 63, the tooth height is 5 mm, the tooth angle is 60°, the diameter is 80 mm, the height is 40 mm, and the thickness is 0.6 mm; the number of teeth of the rotating teeth 3112 is set to 84, the tooth height is 3 mm, the tooth angle is 60°, the diameter is 80 mm, the height is 40 mm, and the thickness is 0.6 mm.

[0068] Eighth Specific Embodiment

[0069] This embodiment provides a specific structure of a shearing power assembly 32 in a crop leaf harvester: it includes a motor 321 fixed to the upper shell 2, a transmission gear 322 and a meshing gear 323, the transmission gear 322 is fixedly connected to the output shaft of the motor 321, and the meshing gear 323 is fixedly connected to the fixing part 3111.

[0070] The motor 321 drives the gear transmission, thereby linking the rotating blade teeth 3112 on the fixing part 3111 to rotate, thereby achieving the purpose of shearing.

[0071] Preferably, another motor and a transmission device can be fixed on the upper housing 2 to drive the shear blade 312 to rotate, and the rotation direction is set to be opposite to the rotation direction of the rotating blade 311. Such a design can further increase the relative rotation speed between the shear blade 312 and the rotating blade 311, and further improve the shearing ability of the crop leaf harvester on petioles and stems.

[0072] Ninth Specific Embodiment

[0073] This embodiment discloses a specific arrangement of the blowing device 4. The blowing device 4 is arranged inside the lower housing 1. The blowing device 4 includes a power source 41 and an air supply assembly 42. The air supply assembly 42 is rotatably electrically connected to the power source 41; or

[0074] The lower end surface of the lower shell 1 is sealed, and a plurality of air inlet holes are arranged on the circumferential shell wall at the lower part of the lower shell 1 .

[0075] The blowing device 4 is added to further increase the air intake of the air intake channel 10, and the ultimate purpose is to increase the negative pressure value of the shear end 21 of the collecting channel 20 and improve the suction force of absorbing the crop leaves.

[0076] The crop leaf harvester of the present application has a shearing mechanism with relative rotational motion, which makes the shearing action sharper. Since the toothed knife is a circular toothed knife, the 360-degree cutting area without dead angles allows the toothed knife to be successfully picked by simply covering the crops to be harvested regardless of the growth state of the stems. A boost mechanism 5 is provided in the air inlet channel 10, which forms a trumpet shape with a reduced diameter by limiting the cross-sectional area of ​​the boost channel 53, thereby further increasing the negative pressure value of the airflow at the shearing end 21, enhancing the wind force at the rear of the collection channel 20, and further improving the crop leaf collection capacity of the crop leaf harvester of the present application.

[0077] The preferred embodiments of the present application are described in detail above; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0078] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0079] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A crop leaf harvester, characterized in that: The crop leaf harvester comprises: An air inlet passage (10), the air inlet passage (10) comprising an air inlet end (11) for allowing air to enter; A collecting channel (20), the collecting channel (20) comprising a shearing end (21) provided with a shearing device (3) and a collecting end (22) provided with a collecting device and communicating with the shearing end (21), the air inlet channel (10) being connected to the middle of the collecting channel (20) and communicating with the air of the collecting channel (20), so that wind flows from the air inlet channel (10) through the collecting channel (20) to the collecting device and generates negative pressure at the shearing end (21).

2. The crop leaf harvester according to claim 1, characterized in that: A boost mechanism (5) is disposed in the middle of the collecting channel (20), and the boost mechanism (5) includes a boost air passage (53) for increasing the air flow pressure, and the boost air passage (53) is downstream of the air flow passing through the air inlet end (11) and upstream of the air flow passing through the collecting end (22).

3. The crop leaf harvester according to claim 2, characterized in that: The pressurizing mechanism (5) comprises a large-diameter tube (51) and a small-diameter tube (52), and the pressurizing airway (53) is arranged between the large-diameter tube (51) and the small-diameter tube (52); the diameter of the large-diameter tube (51) is larger than the diameter of the small-diameter tube (52), and the diameter of the pressurizing airway (53) is smaller than or equal to the diameter of the small-diameter tube (52).

4. The crop leaf harvester according to claim 3, characterized in that: The large-diameter tube (51) is a conical tube having a conical through hole, and the front portion with a large diameter is fixedly connected to the inner wall of the shearing end (21); The small-diameter tube (52) has a through hole, and the rear portion is fixedly connected to the interior of the collecting end (22); The rear portion of the large-diameter tube (51) and the front portion of the small-diameter tube (52) are arranged in a non-contact manner, and the air path between the parts that overlap each other without contact in space becomes the boost air path (53); the connection position between the large-diameter tube (51) and the shear end (21) is located between the through vent of the air inlet channel (10) and the collection channel (20) and the shear end (21).

5. The crop leaf harvester according to claim 1, characterized in that: The crop leaf harvester comprises a lower shell (1) and an upper shell (2), wherein the lower shell (1) and the upper shell (2) are arranged at an angle.

6. The crop leaf harvester according to claim 1 or 5, characterized in that: The shearing device (3) comprises a shearing blade assembly (31) and a shearing power assembly (32); the shearing blade assembly (31) is fixedly arranged at the front end of the upper shell (2), and its movement trajectory surrounds the collecting channel (20).

7. The crop leaf harvester according to claim 6, characterized in that: The shear blade assembly (31) comprises a rotating blade (311), the rotating blade (311) comprises a cylindrical fixed portion (3111) and a rotating blade tooth (3112), the rotating blade tooth (3112) comprises an annular rotating cutting edge, and the projection of the rotating cutting edge is consistent with the shape of the fixed portion (3111); and / or The shear blade assembly (31) further comprises a shear blade (312), wherein the shear blade (312) is sleeved on the circumference of the rotating blade (311); The shearing blade (312) comprises a cylindrical shearing fixing portion (3121) and a shearing tooth (3122), wherein the shearing tooth (3122) comprises an annular shearing edge, and the projection of the shearing edge is consistent with the shape of the shearing fixing portion (3121).

8. The crop leaf harvester according to claim 7, characterized in that: The shear blade (312) is stationary or rotates in the opposite direction to the rotating blade (311); The rotating blade teeth (3112) are evenly distributed on the fixing portion (3111) in the circumferential direction, and the rotating blade teeth (3112) are triangular saw teeth; or The shearing blade teeth (3122) are evenly distributed on the shearing fixing portion (3121) in the circumferential direction, and the shearing blade teeth (3122) are triangular saw teeth; Preferably, the rotating blade teeth (3112) and the shearing blade teeth (3122) are both circular ring-shaped toothed cutters, and the tooth shapes and sizes are different.

9. The crop leaf harvester according to claim 1, 4, 5 or 8, characterized in that: The shearing power assembly (32) comprises a motor (321) fixed to the upper shell (2), a transmission gear (322) and a meshing gear (323), wherein the transmission gear (322) is fixedly connected to the output shaft of the motor (321), and the meshing gear (323) is fixedly connected to the fixing portion (3111).

10. The crop leaf harvester according to claim 1 or 9, characterized in that: The lower shell (1) is provided with a blowing device (4) inside, the blowing device (4) comprises a power source (41) and an air supply component (42), and the air supply component (42) is rotatably electrically connected to the power source (41); or The lower end surface of the lower shell (1) is sealed, and a plurality of air inlet holes are arranged on the circumferential shell wall at the lower part of the lower shell (1).

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