CN212554067U

CN212554067U - Mulberry stem cutting mechanism and hand-held mulberry leaf picking device

Info

Publication number: CN212554067U
Application number: CN202021007749.6U
Authority: CN
Inventors: 覃朝兵; 林澎; 潘宇倩; 梁航; 范才枝; 朱治均; 覃祖业; 莫耀杰; 丁振华
Original assignee: Liuzhou Yuanjixing Industrial Technology Co ltd; Lushan College of Guangxi University of Science and Technology
Current assignee: Liuzhou Yuanjixing Industrial Technology Co ltd; Lushan College of Guangxi University of Science and Technology
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-02-19
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to the field of agricultural machinery, specifically disclose a mulberry leaf stalk cutting mechanism, including deciding the knife pouch, moving knife pouch, positioning gear, drive gear and drive shaft: a plurality of positioning gears are arranged, uniformly arranged around the outer circumference of the movable cutter sleeve and meshed with the transmission teeth on the movable cutter sleeve; two transmission gears are arranged and are meshed with the transmission teeth; the end part of the driving shaft is connected with a driving gear in a transmission way, and the driving gear is meshed with the two transmission gears. The utility model discloses still a device is picked to hand-held type mulberry leaf, including the casing, and above-mentioned arbitrary mulberry leaf stalk cutting mechanism, mulberry leaf stalk cutting mechanism installs in the casing, is provided with the third opening that corresponds with first opening on the casing. The utility model discloses a device is picked to mulberry leaf stalk cutting mechanism and hand-held type mulberry leaf shakes during the use and small in noise, has ensured the stability of equipment use to improve the security of equipment use, prolonged the life of equipment.

Description

Mulberry stem cutting mechanism and hand-held mulberry leaf picking device

Technical Field

The utility model relates to the field of agricultural machinery, especially, relate to a device is picked to mulberry leaf stalk cutting mechanism and hand-held type mulberry leaf.

Background

In recent years, silkworm production has become an important agricultural industry in some areas of our country. With the growth of silkworm industry in China, the silkworm industry needs to be guaranteed by sufficient manpower and material resources. Especially, in the mulberry leaf picking link, most of the mulberry leaves are still manually picked, so that the cultivation cost is greatly increased, and the development scale of the mulberry silkworm industry is restricted. Although some devices for picking mulberry leaves are disclosed in the market, the vibration and noise generated by the devices in the using process are large, the stability of the devices is poor, the using safety of the devices is affected, and the service life of the devices is shortened.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide a device is picked to mulberry leaf stalk cutting mechanism and hand-held type mulberry leaf, vibrations and small in noise during the use have ensured the stability of equipment use to improve the security of equipment use, prolonged the life of equipment.

In order to realize the purpose, the utility model discloses a technical scheme be: a mulberry leaf stalk cutting mechanism comprises:

the fixed cutter sleeve comprises a first sleeve of a hollow cylinder structure, a first opening is formed in one side of the first sleeve along the axis direction of the first sleeve, and a plurality of fixed blades are uniformly distributed on the upper end face of the first sleeve around the axis of the first sleeve;

the movable cutter sleeve comprises a second sleeve with a hollow cylinder structure, the second sleeve is rotatably sleeved outside the first sleeve, one side of the second sleeve is provided with a second opening along the axis direction, the second opening can correspond to the first opening to form an inlet for enabling the mulberry to enter the first sleeve, the upper end face of the second sleeve is uniformly provided with a plurality of movable blades matched with the fixed blades around the axis, and the outer circumferential surface of the second sleeve is also provided with transmission teeth around the outer circumferential surface;

a plurality of positioning gears are arranged, uniformly arranged around the outer circumference of the movable cutter sleeve and meshed with the transmission teeth;

two transmission gears are arranged and are meshed with the transmission teeth, and the distance between the two transmission teeth is larger than the width of the second opening, so that when one of the transmission gears is meshed with the transmission teeth on one side edge of the second opening, the other transmission gear can be meshed with the transmission teeth on the other side edge of the second opening;

and the end part of the driving shaft is connected with a driving gear in a transmission way, and the driving gear is meshed with the two transmission gears.

Preferably, the tool bit further comprises a resetting device, and the resetting device can drive the movable knife sleeve to rotate so that the second opening corresponds to the first opening.

Preferably, the reset device is a reset handle fixedly arranged on the end part of the driving gear, which is back to the driving shaft.

Preferably, the width of the second opening is smaller than the width of the first opening.

Preferably, the ratchet gear further comprises a ratchet wheel and a return spring, the end portion of the driving shaft is provided with a spline hole, one end of the ratchet wheel is provided with an outer spline shaft matched with the spline hole, the other end of the ratchet wheel is provided with a first ratchet surface, the return spring is arranged in the spline hole, the ratchet wheel is in splicing fit with the spline hole through the outer spline shaft, the end portion of the ratchet wheel is elastically connected with the return spring, and one end, facing the driving shaft, of the driving gear is provided with a second ratchet surface matched with the first ratchet.

Preferably, a guide shaft is convexly arranged at the center of the first ratchet surface, and a guide hole which is in running fit with the guide shaft is arranged in the middle of the second ratchet surface.

The utility model also discloses a device is picked to hand-held type mulberry leaf, including the casing, and the aforesaid is arbitrary mulberry leaf stalk cutting mechanism, mulberry leaf stalk cutting mechanism installs in the casing, and driving shaft connection has its pivoted actuating mechanism of drive, is provided with the third opening that corresponds with first opening on the casing.

Preferably, the shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably and fixedly connected in a screw connection or a buckle connection mode.

Preferably, the fixed cutter sleeve is fixedly connected with the shell, the positioning gear and the transmission gear are rotatably arranged in the shell through a rotating shaft, and bearings are arranged at two ends of the rotating shaft.

Preferably, the upper shell is provided with a mounting hole for enabling the end part of the driving shaft to extend out of the shell, and the reset handle is provided with a rubber wafer for covering the mounting hole.

The beneficial effects are that: compared with the prior art, the mulberry leaf stalk cutting mechanism and the hand-held mulberry leaf picking device of the utility model enable mulberry branches to enter the first sleeve through the second opening and the first opening by corresponding the second opening to the first opening, then drive the driving gear to rotate through the driving mechanism, the driving gear transmits power to the movable knife sleeve through the driving gear, the movable knife sleeve can rotate relative to the fixed knife sleeve, thereby the movable knife blade rotates relative to the fixed knife blade, so as to cut the leaf stalks on the mulberry branches in the first sleeve, and then complete the picking operation of mulberry leaves, through being provided with a plurality of positioning gears to be meshed with the outer circumferential surface of the movable knife sleeve for positioning, the swing generated when the movable knife sleeve rotates can be reduced, the stability of the movement of the movable knife sleeve is improved, and further the stability of the whole transmission chain is improved, the vibration and noise generated in the use process are reduced, the stability of the equipment use is ensured, thereby improving the safety of the equipment use and prolonging the service life of the equipment.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic structural view of a mulberry leaf stalk cutting mechanism of the present invention;

FIG. 2 is a schematic view of the connection structure of the driving shaft and the driving gear in FIG. 1;

FIG. 3 is a schematic view of the driving gear and the ratchet 29 shown in FIG. 1;

FIG. 4 is a schematic structural view of the hand-held mulberry leaf picking device of the present invention;

fig. 5 is an exploded view of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, a mulberry stalk cutting mechanism comprises a fixed cutter sleeve 1, a movable cutter sleeve 5, a positioning gear 10, a transmission gear 11 and a driving shaft 12, specifically:

the fixed cutter sleeve 1 comprises a first sleeve 2 with a hollow cylinder structure, a first opening 3 is formed in one side of the first sleeve 2 along the axis direction of the first sleeve, two ends of the first opening 3 penetrate through two ends of the first sleeve 2, a plurality of fixed blades 4 are uniformly distributed on the upper end face of the first sleeve 2 around the axis of the first sleeve 2, and the fixed blades 4 extend along the axis direction of the first sleeve 2;

the movable cutter sleeve 5 comprises a second sleeve 6 with a hollow cylinder structure, the inner diameter of the second sleeve 6 is equal to or slightly larger than the outer diameter of the first sleeve 2, so that the second sleeve 6 can be rotatably sleeved outside the first sleeve 2, one side of the second sleeve 6 is provided with a second opening 7 along the axial direction, two ends of the second opening 7 are also penetrated to two ends of the second sleeve, and, during rotation of the second sleeve with respect to the first sleeve 2, the second opening 7 can correspond to the first opening 3, so as to form an inlet for the mulberry to enter the first sleeve 2, a plurality of movable blades 8 which are matched with the fixed blades 4 are uniformly distributed on the upper end surface of the second sleeve 6 around the axis of the second sleeve, preferably, the number of the movable blades 8 is the same as that of the fixed blades 4, the fixed blades 4 can be respectively and one-to-one corresponding, and the outer circumferential surface of the second sleeve 6 is also provided with transmission teeth 9 in a surrounding manner;

a plurality of positioning gears 10 are arranged, the plurality of positioning gears 10 are uniformly arranged around the outer circumference of the movable knife pouch 5 and are all meshed with the transmission teeth 9, so that the movable knife pouch 5 is limited in multiple points, and the swing generated in the rotating process of the movable knife pouch 5 is reduced;

two transmission gears 11 are arranged and are both meshed with the transmission teeth 9, and the distance between the two transmission teeth 9 is greater than the width of the second opening 7, so that when one of the transmission gears 11 is meshed with the transmission teeth 9 on one side edge of the second opening 7, the other transmission gear 11 can be meshed with the transmission teeth 9 on the other side edge of the second opening 7, therefore, when the second opening 7 rotates to the two transmission gears 11, at least one transmission gear 11 can transmit power to the movable cutter sleeve 5, and the movable cutter sleeve 5 can be ensured to complete continuous rotation;

the end of the driving shaft 12 is connected with a driving gear 13 in a transmission manner, the driving gear 13 is arranged between the two transmission gears 11 and is meshed with the two transmission gears 11, preferably, the driving gear 13 can be arranged on a gear shaft, and the gear shaft is matched with the driving shaft 12 in a transmission manner.

When the mulberry leaf stalk cutting mechanism of the utility model is used, the second opening 7 is corresponding to the first opening 3, the mulberry branch can enter the first sleeve 2 through the second opening 7 and the first opening 3, then the power input driving shaft 12 is driven by the driving mechanism to drive the driving gear 13 to rotate, the driving gear 13 transmits the power to the movable knife sleeve 5 through the transmission gear 11, the movable knife sleeve 5 can rotate relative to the fixed knife sleeve 1, thereby the movable blade 8 can be matched with the fixed blade 4 in a rotating way to cut the leaf stalks on the mulberry branch, thereby the picking operation of mulberry leaves is completed, the swing generated when the movable knife sleeve 5 rotates can be reduced through the meshing positioning of the outer circumferential surface of the movable knife sleeve 5 by the plurality of positioning gears 10, the stability of the motion of the movable knife sleeve 5 is improved, the stability of the whole transmission chain is further improved, the vibration and noise generated in the using process are reduced, the stability of the equipment use is ensured, thereby improving the safety of the equipment use and prolonging the service life of the equipment. It should be noted that the driving mechanism in the present invention is prior art, and reference may be specifically made to the driving assembly structure in the chinese patent with publication number CN108142094A, and the driving mechanism is not an improvement point in the present application, and therefore, too many details are not described.

In one of them preferred embodiment, the utility model discloses a mulberry leaf stalk cutting mechanism can also include resetting means 14, resetting means 14 can drive and move sword cover 5 and rotate to make second opening 7 correspond with first opening 3, after the completion is to the cutting of a mulberry branch mulberry leaf, need take out the ramulus mori from first sleeve pipe 2, put into another mulberry branch again, because move sword cover 5 stall back second opening 7's position is random, consequently need rotate and move sword cover 5, it corresponds with first opening 3 to make second opening 7 on the sword cover 5, through being provided with resetting means 14, can reset moving sword cover 5 to the initial position, thereby make second opening 7 correspond with first opening 3, in order to put new mulberry branch again.

Specifically, the reset device 14 may be a reset handle fixedly installed on an end portion of the driving gear 13 facing away from the driving shaft 12, and the driving gear 13 may be rotated by rotating the reset handle, so as to drive the movable knife pouch 5 to rotate to the initial position.

Further, the width of the second opening 7 may be smaller than that of the first opening 3, so that when the movable knife holder 5 is reset by the reset handle, the second opening 7 on the movable knife holder 5 can be more easily rotated to a position corresponding to the first opening 3.

As shown in fig. 2, in another preferred embodiment, the mulberry stalk cutting mechanism of the present invention further comprises a ratchet wheel 29 and a return spring 18, the end of the driving shaft 12 is provided with a spline hole 15, one end of the ratchet wheel 29 is provided with an external spline shaft 16 engaged with the spline hole 15, the other end is provided with a first ratchet surface 17, the return spring 18 is installed in the spline hole 15, the ratchet wheel 29 is engaged with the spline hole 15 through the external spline shaft 16, and the end thereof is elastically connected with the return spring 18, one end of the driving gear 13 facing the driving shaft 12 is provided with a second ratchet surface 19 engaged with the first ratchet surface 17, after the driving mechanism inputs power, the driving shaft 12 drives the ratchet wheel 29 to rotate in forward direction, so that the first ratchet surface 17 can be engaged with the second ratchet surface 19 to drive the driving gear 13 to rotate, when the movable knife sleeve 5 needs to be reset, the driving gear 13 can be driven to rotate in direction through, therefore, the second ratchet surface 19 can rotate relative to the first ratchet surface 17, so that the driving gear 13 cannot drive the driving shaft 12 to rotate in the rotating process, and the reset spring 18 is arranged, after the movable knife sleeve 5 rotates to the reset position, under the elastic force of the reset spring 18, the elastic force can be provided for the ratchet wheel 29, so that the ratchet wheel 29 moves towards the driving gear 13, and the first ratchet surface 17 can be kept in a stable clamping state with the first ratchet surface 17.

As shown in fig. 3, more preferably, the center of the first ratchet surface 17 is convexly provided with a guide shaft 20, the middle of the second ratchet surface 19 is provided with a guide hole 21 which is rotatably matched with the guide shaft 20, and the guide shaft 20 is matched with the guide hole 21, so that the stability of the connection between the ratchet wheel 29 and the driving gear 13 can be improved, and the guide function can be achieved, and the movable knife pouch 5 can ensure that the ratchet wheel 29 and the driving gear 13 move to the clamping state after being reset.

As shown in fig. 1 to 5, the utility model also discloses a device is picked to hand-held type mulberry leaf, including casing 22, and above-mentioned arbitrary mulberry leaf stalk cutting mechanism, mulberry leaf stalk cutting mechanism installs in casing 22, is provided with the third opening 23 that corresponds with first opening 3 on the casing 22, and drive shaft 12 is connected with its pivoted actuating mechanism of drive.

When the hand-held mulberry leaf picking device is used, the second opening 7 corresponds to the first opening 3, mulberry branches can pass through the third opening 23, the second opening 7 and the first opening 3 to enter the first sleeve 2, then the power input driving shaft 12 drives the driving gear 13 to rotate through the driving mechanism, the driving gear 13 transmits power to the movable knife sleeve 5 through the driving gear 11, the movable knife sleeve 5 can rotate relative to the fixed knife sleeve 1, so that the movable knife blade 8 can be matched with the fixed knife blade 4 in a rotating way to cut leaf stalks on the mulberry branches, thereby completing the picking operation of the mulberry leaves, the swing generated when the movable knife sleeve 5 rotates can be reduced through the meshing positioning of the plurality of positioning gears 10 and the outer circumferential surface of the movable knife sleeve 5, the motion stability of the movable knife sleeve 5 is improved, the stability of the whole transmission chain is further improved, the vibration and noise generated in the using process are reduced, the stability of equipment use has been ensured to improve the security of equipment use, prolonged the life of equipment, and whole device is small, and light in weight can hand and use, and it is more convenient to use.

Further, casing 22 is including can going up casing 24 and casing 25, goes up casing 24 and casing 25 and can dismantle fixed connection through the mode of screw connection or buckle connection, and casing 22 adopts the mode of dismantling the connection, and the dismouting of being convenient for is convenient for repair.

In one preferred embodiment, the stationary cutter sleeve 1 may be fixedly connected to the housing 22 through a screw, the positioning gear 10 and the transmission gear 11 are rotatably mounted in the housing 22 through a rotating shaft 26, and bearings 27 are mounted at two ends of the rotating shaft 26, so that the rotation of the positioning gear 10 and the transmission gear 11 is more stable and smooth by providing the rotating shaft 26 and the bearings 27, thereby improving the stability of the movement of the whole mechanism and further reducing the generation of noise and vibration.

Further, go up the casing 24 and be provided with the mounting hole that makes the tip of drive shaft 12 stretch out the casing 22 outside, reset handle facial make-up is equipped with and is used for covering the rubber disk 28 who establishes the mounting hole, and rubber disk 28 is fixed to be installed on the handle that resets, can year reset handle and rotate together, through being provided with rubber disk 28, can place inside dust debris gets into casing 22 through the clearance between drive shaft 12 and the mounting hole.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. A mulberry leaf stalk cutting mechanism is characterized by comprising:

the cutter fixing sleeve (1) comprises a first sleeve (2) of a hollow cylinder structure, a first opening (3) is formed in one side of the first sleeve (2) along the axis direction of the first sleeve, and a plurality of fixed blades (4) are uniformly distributed on the upper end face of the first sleeve (2) around the axis of the first sleeve;

the movable cutter sleeve (5) comprises a second sleeve (6) of a hollow cylinder structure, the second sleeve (6) is rotatably sleeved outside the first sleeve (2), one side of the second sleeve (6) is provided with a second opening (7) along the axis direction, the second opening (7) can correspond to the first opening (3) to form an inlet for enabling a mulberry tree to enter the first sleeve (2), the upper end face of the second sleeve (6) is uniformly provided with a plurality of movable blades (8) matched with the fixed blades (4) around the axis, and the outer circumferential surface of the second sleeve (6) is also provided with transmission teeth (9) around the outer circumferential surface;

a plurality of positioning gears (10) are arranged, and the plurality of positioning gears (10) are uniformly arranged around the outer circumference of the movable cutter sleeve (5) and are all meshed with the transmission teeth (9);

two transmission gears (11) are arranged and are meshed with the transmission teeth (9), the distance between the two transmission teeth (9) is larger than the width of the second opening (7), so that when one of the transmission gears (11) is meshed with the transmission teeth (9) on one side edge of the second opening (7), the other transmission gear (11) can be meshed with the transmission teeth (9) on the other side edge of the second opening (7);

and the end part of the driving shaft (12) is connected with a driving gear (13) in a transmission way, and the driving gear (13) is meshed with the two transmission gears (11).

2. The mulberry stem cutting mechanism according to claim 1, further comprising a reset device (14), wherein the reset device (14) can drive the movable cutter sleeve (5) to rotate so that the second opening (7) corresponds to the first opening (3).

3. The mulberry stem cutting mechanism according to claim 2, wherein the reset device (14) is a reset handle fixedly arranged on the end of the driving gear (13) opposite to the driving shaft (12).

4. A mulberry stem cutting mechanism according to claim 1, wherein the width of the second opening (7) is smaller than the width of the first opening (3).

5. The mulberry leaf stalk cutting mechanism according to claim 1, further comprising a ratchet wheel (29) and a return spring (18), wherein the end of the driving shaft (12) is provided with a spline hole (15), one end of the ratchet wheel (29) is provided with an external spline shaft (16) matched with the spline hole (15), the other end of the ratchet wheel is provided with a first ratchet surface (17), the return spring (18) is arranged in the spline hole (15), the ratchet wheel (29) is in inserted fit with the spline hole (15) through the external spline shaft (16) and is elastically connected with the return spring (18), and one end of the driving gear (13) facing the driving shaft (12) is provided with a second ratchet surface (19) matched with the first ratchet surface (17).

6. The mulberry stem cutting mechanism according to claim 5, wherein the first ratchet surface (17) is provided with a guide shaft (20) at the center thereof, and the second ratchet surface (19) is provided with a guide hole (21) at the middle thereof for rotatably fitting with the guide shaft (20).

7. A hand-held mulberry leaf picking device is characterized by comprising a shell (22) and a mulberry leaf stalk cutting mechanism as claimed in any one of claims 1 to 6, wherein the mulberry leaf stalk cutting mechanism is arranged in the shell (22), a driving mechanism for driving the mulberry leaf stalk cutting mechanism to rotate is connected to a driving shaft (12), and a third opening (23) corresponding to the first opening (3) is arranged on the shell (22).

8. The hand-held mulberry leaf picking device according to claim 7, wherein the housing (22) comprises an upper housing (24) and a lower housing (25), and the upper housing (24) and the lower housing (25) are detachably and fixedly connected through a screw connection or a snap connection.

9. The hand-held mulberry leaf picking device according to claim 8, wherein the cutter fixing sleeve (1) is fixedly connected with the housing (22), the positioning gear (10) and the transmission gear (11) are both rotatably mounted in the housing (22) through a rotating shaft (26), and bearings (27) are mounted at both ends of the rotating shaft (26).

10. The hand-held mulberry leaf picking device according to claim 9, wherein the upper housing (24) is provided with a mounting hole for the end of the driving shaft (12) to extend outside the housing (22), and the reset handle is provided with a rubber disc (28) for covering the mounting hole.