CN209845765U - Tea ridge trimming means - Google Patents

Abstract

The utility model provides a tea ridge trimming means, include: the pipe shell, the trimming cutter and the driving motor are arranged, the pipe shell is sleeved outside an output shaft of the driving motor, the top end of the pipe shell is detachably connected with a shell of the driving motor, and the trimming cutter is rotatably arranged inside the pipe shell. A plurality of trimming cuts which are spirally arranged are arranged on the side wall of the pipe shell, and a first blade part is arranged inside each trimming cut; the pruning shears comprise a spiral blade and a cutter shaft, the spiral blade is arranged on the side wall of the cutter shaft, and a second blade part is arranged at the outer side edge part of the spiral blade; one end of the cutter shaft is connected with an output shaft of the driving motor, and the other end of the cutter shaft is rotationally connected with the bottom end face of the tube shell; when the trimming knife rotates, the first blade part and the second blade part perform shearing movement. A tea ridge trimming means, can be nimble, multi-angle prune the tea tree, effectively promoted the work efficiency and the operating mass with pruned of tea tree.

Description

Tea ridge trimming means

Technical Field

The utility model belongs to the field of agricultural machinery, especially, relate to a tea ridge trimming means.

Background

Tea tree is a main economic crop in southeast of China, and branches need to be trimmed in the planting process of the tea tree. The crown can be adjusted by pruning the branches so that most nutrients in the tea tree are supplied to the growth of the lateral branches, and the tea tree has a larger picking area. Meanwhile, the height of the tea tree can be controlled through pruning, and the next-year picking work is facilitated. At present, tea growers generally adopt a pruning machine to prune tea trees.

Existing tea tree pruning machines can be broadly classified into two types, namely walking type and hand-held type. The walking trimmer achieves walking function through the carrier, physical consumption of operators is reduced, but due to the fact that planting density of tea trees is large, the walking trimmer is limited by the size of the device in the working process, and the walking trimmer cannot move between tea ridges flexibly, and therefore the walking trimmer is not suitable for tea gardens with dense planting. Although the hand-held trimmer has the advantage of flexible movement, the trimming range of the hand-held trimmer is limited by the trimming cutter, and branches can be trimmed only at a certain specific angle, so that the working time of an operator is greatly prolonged when the operator uses the hand-held trimmer to work, and the operator is overworked.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a tea ridge trimming means to realize the purpose of pruning the tea ridge of nimble, multi-angle.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a tea ridge pruning device comprises: the pipe shell is sleeved outside an output shaft of the driving motor, the top end of the pipe shell is detachably connected with a shell of the driving motor, and the trimming knife is rotatably arranged inside the pipe shell;

the side wall of the pipe shell is provided with a plurality of trimming cuts which are spirally arranged, the side wall of the trimming cuts close to the bottom end of the pipe shell is provided with a first blade part, and the cutting edge of the first blade part faces the top of the pipe shell;

the pruning shears comprise a spiral blade and a cutter shaft, the spiral blade is arranged on the side wall of the cutter shaft, and a second blade part is arranged at the outer side edge part of the spiral blade; one end of the cutter shaft is connected with an output shaft of the driving motor, and the other end of the cutter shaft is rotatably connected with the bottom end face of the tube shell; when the trimming knife rotates, the first blade part and the second blade part perform shearing movement.

Furthermore, a third edge part is arranged on the side wall of the trimming cut, the third edge part is perpendicular to the first edge part, and when the trimming knife rotates, shearing motion is carried out between the second edge part and the third edge part.

Furthermore, a discharge port is arranged on the bottom end face of the tube shell, and the discharge port is annularly arranged on the bottom end face of the tube shell.

Further, the pitch of the helical blade is greater than or equal to the axial width of any trim cut.

Further, the pitch of the helically arranged trim cut is greater than the pitch of the helical blade.

Further, the trimming device includes a supporting device, the supporting device includes: the connecting section, the supporting arm and the supporting bracket; the connecting section is vertically arranged on the end face of the driving motor far away from the output shaft, one end of the supporting arm is hinged with the connecting section through an adjusting mechanism, and the other end of the supporting arm is rotatably connected with the supporting bracket; the support bracket is provided with an arc-shaped accommodating groove for accommodating an upper arm of an operator, and the axis of the arc-shaped accommodating groove is parallel to the axis of the support arm.

Furthermore, the adjusting mechanism comprises an adjusting bolt and a locking nut, the locking nut is embedded into the connecting section, and the adjusting bolt penetrates through the supporting arm and then is connected with the locking nut.

Further, the supporting device comprises a handle, and the handle is arranged on the side wall of the driving motor and is vertical to the connecting section.

Compared with the prior art, a tea ridge trimming means have following advantage:

(1) a tea ridge trimming means, can be nimble, multi-angle prune the tea ridge. When carrying out pruning work, this device is handed to the operation workman to insert the tube between the gap on tea ridge, inside the pruning incision on the tube can be inserted to the branch of tea tree this moment, along with the rotation of helical blade, shearing motion between first cutting part and the second cutting part can cut off the branch, accomplishes the pruning work of tea tree. Because the pruning incision is the heliciform and arranges on the lateral wall of tube, and carries out the pruning sword of branch shearing work and be the heliciform blade, consequently this device has bigger branch pruning area, need not operating personnel when carrying out the tea tree pruning and adjust the angle of device according to the orientation of cutter, consequently can promote the work efficiency of tea tree pruning, reduces staff's physical demands.

(2) A tea ridge trimming means, can reduce the physical demands of operating personnel when using this device for a long time through strutting arrangement. When an operator holds the handle to control the device, the gravity center (the position of the driving motor) of the device is located below the forearm of the operator, and the supporting bracket can support the upper arm of the operator at the moment, so that the gravity is uniformly distributed on the whole arm, and the burden of the device on the forearm is reduced. In addition, because the connection section is articulated with the support arm, the shape of the support device can be adjusted according to the bending condition of the arm of the operator, and the influence of the support device on the movement of the operator is avoided.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a tea ridge pruning device according to an embodiment of the present invention;

fig. 2 is a schematic partial sectional view of a tea ridge pruning device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a tube shell according to an embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of a tube shell according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a trimming blade according to an embodiment of the present invention;

fig. 6 is an exploded view of a supporting device according to an embodiment of the present invention.

Description of reference numerals:

1-a pipe shell; 11-trimming the incision; 12-a first blade; 13-a third blade; 14-a discharge outlet; 2-driving the motor; 21-a battery slot; 22-a lithium battery; 31-a helical blade; 311-a second blade; 32-cutter shaft; 41-connecting section; 411-a first support sheet; 412-a second support sheet; 413-nut groove; 414-circular hole; 42-a support arm; 421-inserting hole; 43-a support bracket; 431-an arc-shaped accommodating groove; 432-connecting hole; 44-a grip; 45-adjusting the bolt; 46-locking nut.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A tea ridge pruning device, the structure of which can be schematically shown in figures 1 and 2, comprises: a housing 1, a trimmer and a drive motor 2. Driving motor 2 is the power component in this device for order about the pruning sword and rotate, be equipped with battery slot 21 on driving motor 2's lateral wall, install lithium cell 22 at the inside detachable of battery slot 21, through lithium cell 22 can provide the required electric energy of work for driving motor 2. The pipe 1 cover is established in driving motor 2's output shaft outside, realizes dismantling through connecting bolt between the top of pipe 1 and driving motor 2's the casing to be connected, is equipped with in pipe 1 inside the pruning sword, the one end of pruning sword links to each other with driving motor 2, the other end and 1 bottom surface rotatable coupling of pipe. When the device needs to be maintained, the tube shell 1 can be detached to expose the trimming cutter arranged in the tube shell, so that the operation of maintenance personnel is facilitated.

As shown in fig. 3 and 4, a plurality of pruning cuts 11 are provided on the secondary side wall of the housing 1 in a spiral arrangement, the pruning cuts 11 are used for accommodating tea tree branches to be pruned, and the spiral arrangement can lift the number of pruning cuts 1 on the side wall of the housing 1 and make the pruning cuts 11 face different directions. In the prior art, the blade of the hand-held trimmer faces towards a single direction, so that the angle of the trimmer needs to be adjusted when trimming is performed, so that the blade is perpendicular to the branch. However, the process of angle adjustment wastes more time, so that the working hours of tea tree trimming work are prolonged, and the physical burden of an operator is increased. In this embodiment, because all angles of the pipe case 1 are provided with the trimming cuts 11, when the branch contacts the pipe case 1, the branch can be embedded into the nearest trimming cut 11, and the position of the device does not need to be adjusted by an operator, so that the branch trimming operation can be realized.

In addition, a discharge opening 14 which is annularly arranged is further arranged on the bottom end face of the pipe shell 1, and the discharge opening 14 is used for discharging branch chips inside the pipe shell 1 out of the device, so that the accumulation of the chips inside the pipe shell 1 is avoided.

As shown in fig. 5, the trimming cutter includes a spiral blade 31 and a cutter shaft 32, one end of the cutter shaft 32 is connected to an output shaft of the driving motor 2, the other end is rotatably connected to the bottom surface of the case 1, and the spiral blade 31 is provided on a side wall of the cutter shaft 32. Specifically, a through hole is formed in the center of the bottom surface of the pipe shell 1, and the cutter shaft 32 is connected with the through hole through a bearing. When the driving motor 2 is started, the torque generated by the motor is transmitted to the cutter shaft 32 through the output shaft, so as to drive the trimming cutter to rotate. As the trimming blade rotates, the wickers inserted into the trimming cut 11 are cut off, and the wicker debris remaining inside the casing 1 moves towards the discharge opening 14 along with the rotation of the helical blade 31 and finally is discharged outside the casing 1.

In this embodiment, the cutting of the branches is performed by the cutting movement between the first edge part 12 and the second and third edge parts 311 and 13. Specifically, when the rotation direction of the spiral blade 13 is right-handed and the rotation direction is clockwise, the first blade 12 is arranged on the side wall of the trimming cut 11 close to the bottom end of the tube shell 1, and the cutting edge of the first blade faces the top of the tube shell 1; the second blade 311 is arranged at the outer edge of the helical blade 31, and the cutting edge of the second blade is in contact with the inner wall of the tube shell 1; the third blade portion 13 is provided on the right inner wall of the trimming cut 11 with its edge facing the left inner wall of the trimming cut 11.

When the trimming blade rotates, the second blade 311 disposed on the outer edge of the helical blade 31 moves toward the first blade 12 and the third blade 13. When the cutting edge of the second edge part 311 is staggered with the cutting edge of the first edge part 12 or the third edge part 13, a shearing force is generated at the staggered position, and the shearing force can shear the tea tree branches inserted into the pruning incision 11, so that the branches and the tree crowns are separated.

In the process of pruning the branches, if the branches are inserted into the pruning cut 11 in the radial line direction of the pipe shell 1, the branches falling off due to shearing enter the pipe shell 1 and are finally discharged to the outside through the discharge port 14; if the branches enter the trimming cut 11 in the tangential direction of the pipe shell 1, the branches falling off due to shearing directly fall on the ground, and only a small part of branch scraps enter the pipe shell 1 and are finally discharged to the outside through the discharge opening 14.

In order to improve the pruning effect of the device on the tea tree branches and ensure that the inside of any pruning incision 11 can be subjected to shearing movement with an effective cutting part, optionally, the thread pitch of the spiral blade 31 is greater than or equal to the axial width of any pruning incision 11.

In the shearing movement of the present apparatus, the second blade 311 provided on the screw blade 31 is an active blade, and the first blade 12 and the third blade 13 provided inside the trim notch 11 are both stationary blades, so that the shearing angle between the active blade and the stationary blade is determined by the pitch of the screw blade 31, and the smaller the shearing angle, the larger the local shearing force generated at the shearing position. When the pitch of the helical blade 31 is smaller than the axial width of the trimming cut 11, the shearing angle between the second blade 311 and the first blade 12 will be larger than 90 °, and at this time, the shearing process will cause excessive wear to the blades, which is not beneficial to the long-term operation of the device. Therefore, it is necessary to make the pitch of the screw blade 31 larger than or equal to the axial width of any trimming cut 11 so that the present device obtains a long service life.

Further, the relationship between the pitch of the arrangement of the trim cuts 11 and the pitch of the screw blade 31 affects the frequency of use of the second blade portion 311. If the pitch of the trimming cut 11 is smaller than the pitch of the screw blade 31, the same second blade 311 is continuously sheared, which causes the temperature of the second blade 311 to be too high, thereby reducing the service life thereof. To avoid this phenomenon, the pitch of the spirally arranged trimming cut 11 is greater than that of the spiral blade 31, so that the second blade part 311 of the same section intermittently enters into the shearing process, thereby prolonging the service life of the trimming cutter.

In this embodiment, the trimming device further comprises a supporting device, and the physical consumption of an operator when using the trimming device for a long time can be reduced through the supporting device, so that the weight of the trimming device is uniformly distributed on the whole arm. Specifically, the support device includes: a connecting section 41, a support arm 42 and a support bracket 43, the structure of which can be illustrated by fig. 6.

The connecting section 41 is vertically arranged on the end face of the driving motor 2 far away from the output shaft, one end of the supporting arm 42 is hinged with the connecting section 41 through an adjusting mechanism, and the other end of the supporting arm is rotatably connected with the supporting bracket 43. The support bracket 43 is provided with an arc-shaped accommodating groove 431 and a connecting hole 432, the connecting hole 432 is sleeved on the shaft neck of the support arm 42, and the arc-shaped accommodating groove 431 is sleeved on the upper arm of an operator.

As an example, the hinged connection between the connecting section 41 and the support arm 42 may be achieved by the following structure. Wherein the connection section 41 may include a first support plate 411 and a second support plate 412 that are parallel to each other, a circular hole 414 is formed on the first support plate 411, and a nut groove 413 is formed on the second support plate 412. The adjusting mechanism may include an adjusting bolt 45 and a lock nut 46, and an insertion hole 421 for receiving the adjusting bolt 45 is further provided on the support arm 42.

When the adjusting bolt is installed, one end of the supporting arm 42 with the insertion hole 421 is placed between the two supporting pieces, the locking nut 46 is embedded in the nut groove 413, and the adjusting bolt 45 sequentially passes through the round hole 414 and the insertion hole 421 and then is connected with the locking nut 46.

When the adjusting bolt 45 is tightened, the gap between the first supporting plate 411 and the second supporting plate 412 will be reduced, so that the rotation of the supporting arm 42 will be limited, and the shape of the supporting device will be fixed. When the arm of the operator is bent, in order to avoid the influence of the supporting device on the movement of the operator, the supporting arm 42 can recover the rotation capacity by loosening the adjusting bolt 45, and when the included angle between the connecting section 41 and the supporting arm 42 is the same as the included angle between the large arm and the small arm of the operator, the supporting arm 42 is locked by the adjusting mechanism again, so that the shape of the supporting device can be fixed.

As an optional implementation manner of this embodiment, the supporting device further includes a handle 44, the handle 44 is disposed on a side wall of the driving motor 2, and the handle 44 is perpendicular to the connecting section 41. When the device is operated, the handle 44 can facilitate the operator to grasp the device, and the moving path of the tube case 1 can be controlled conveniently.

The working process of the above scheme is explained as follows:

before working, checking the electric quantity of the lithium battery, and if the electric quantity is insufficient, replacing the battery in time to avoid work interruption caused by the electric quantity problem; if the electric quantity can meet the working requirement, the work can be started. Firstly, inlay the upper arm and inlay inside the arc holding tank, adjust the contained angle of support arm and linkage segment through adjustment mechanism for operator's arm is in under the gesture of a comfortable and be convenient for exert oneself, holds the handle at last, picks up this trimming means.

When the pruning operation is carried out, the pipe shell is firstly inserted into the gap of the tree crown of the tea tree, and then the driving motor is started, so that the pruning knife rotates. After the driving motor is started, an operator controls the moving route of the tube shell to trim the tea tree crown into a required shape.

The following explains the effects of the above scheme:

this embodiment provides a tea ridge trimming means, through the pruning scope that the pruning incision of spiral helicine pruning sword and spiral helicine arrangement had promoted the device for this device can be nimble, the branch to the tea tree of multi-angle is pruned. In addition, this device still passes through strutting arrangement with the even distribution of the weight of equipment to whole arm, has reduced the physical demands of operating personnel when using this device for a long time.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A tea ridge pruning device comprises: tube (1), pruning sword and driving motor (2), the output shaft outside at driving motor (2) is established to tube (1) cover, and the top of tube (1) can be dismantled with the casing of driving motor (2) and be connected, the rotatable setting of pruning sword is inside tube (1), its characterized in that:

a plurality of trimming cuts (11) which are spirally arranged are arranged on the side wall of the tube shell (1), a first blade part (12) is arranged on the side wall of each trimming cut (11) close to the bottom end of the tube shell (1), and the cutting edge of each first blade part (12) faces the top of the tube shell (1);

the pruning shear comprises a spiral blade (31) and a cutter shaft (32), the spiral blade (31) is arranged on the side wall of the cutter shaft (32), and a second blade part (311) is arranged at the outer side edge part of the spiral blade (31); one end of the cutter shaft (32) is connected with an output shaft of the driving motor (2), and the other end of the cutter shaft is rotatably connected with the bottom end face of the tube shell (1); when the trimming blade rotates, the first blade part (12) and the second blade part (311) perform shearing movement.

2. The tea ridge pruning device of claim 1, wherein: be equipped with third cutting part (13) on pruning incision (11) lateral wall, third cutting part (13) are perpendicular mutually with first cutting part (12), when the pruning sword rotated, carry out shearing movement between second cutting part (311) and third cutting part (13).

3. The tea ridge pruning device of claim 1, wherein: the device is characterized in that a discharge opening (14) is formed in the bottom end face of the tube shell (1), and the discharge opening (14) is annularly arranged on the bottom end face of the tube shell (1).

4. The tea ridge pruning device of claim 1, wherein: the pitch of the helical blade (31) is greater than or equal to the axial width of any trim cut (11).

5. The tea ridge pruning device of claim 4, wherein: the pitch of the helically arranged trimming cut (11) is greater than the pitch of the helical blade (31).

6. The tea ridge pruning device of claim 1, wherein: the trimming device comprises a support device, the support device comprising: a connecting section (41), a supporting arm (42) and a supporting bracket (43); the connecting section (41) is vertically arranged on the end face, far away from the output shaft, of the driving motor (2), one end of the supporting arm (42) is hinged with the connecting section (41) through an adjusting mechanism, and the other end of the supporting arm is rotatably connected with the supporting support (43); an arc-shaped accommodating groove (431) is formed in the supporting bracket (43), and the axis of the arc-shaped accommodating groove (431) is parallel to the axis of the supporting arm (42).

7. The tea ridge pruning device of claim 6, wherein: the adjusting mechanism comprises an adjusting bolt (45) and a locking nut (46), the locking nut (46) is embedded into the connecting section (41), and the adjusting bolt (45) penetrates through the supporting arm (42) and then is connected with the locking nut (46).

8. The tea ridge pruning device of claim 7, wherein: the supporting device comprises a handle (44), and the handle (44) is arranged on the side wall of the driving motor (2) and is perpendicular to the connecting section (41).