CN210630226U

CN210630226U - Weeder and drive assembly thereof

Info

Publication number: CN210630226U
Application number: CN201920502860.3U
Authority: CN
Inventors: 魏敏
Original assignee: Changzhou Luonai Erde Machinery Technology Co ltd
Current assignee: Changzhou Luonai Erde Machinery Technology Co ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-05-29
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a weeding machine and a driving component thereof, wherein the weeding machine driving component comprises a shell, a motor controller, a motor, a battery and a clutch, wherein the motor controller, the motor and the battery are fixed in the shell; the clutch is fixed on an output shaft of the motor; the battery, the motor controller and the motor are electrically connected in sequence; the motor controller controls the rotation speed of the motor. The utility model discloses a weeder can be reequiped by traditional petrol weeder conveniently fast and come, can also install the clutch additional at the gasoline engine simultaneously to conveniently carry out the switching of power supply, solved traditional gasoline engine and polluted seriously, change whole weeder problem with high costs, convenient to use, energy-concerving and environment-protective satisfies the use of weeder under the multiple condition.

Description

Weeder and drive assembly thereof

Technical Field

The utility model relates to a sanitation instrument especially relates to a weeder and drive assembly thereof.

Background

The weeding machine is a mechanical tool for trimming lawns, vegetations and the like, the output speed of the blade is greatly increased by utilizing the high-speed rotation of the engine, the operation time of weeding workers is saved, and a large amount of manpower resources are reduced. Most of traditional weeders are driven by gasoline engines or diesel engines, the noise is high, the pollution is serious, but the cost is high when the weeder is updated, and a convenient and cheap solution is needed, so that a driving component of the weeder capable of being conveniently and quickly modified and the weeder using the motor are needed to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a weeder that can make things convenient for quick repacking and drive assembly thereof.

Realize the utility model discloses the technical scheme of purpose is: a drive assembly of a weeding machine comprises a shell, a motor controller, a motor, a battery and a clutch, wherein the motor controller, the motor and the battery are fixed in the shell; the clutch is fixed on an output shaft of the motor; the battery, the motor controller and the motor are electrically connected in sequence; the motor controller controls the rotation speed of the motor.

The shell comprises a front shell and a rear shell fixedly connected with the front shell; the motor is fixed in the front shell, and the motor controller and the battery are both fixed in the rear shell.

The battery is preferably a lithium battery.

And the outer side surfaces of the front shell and the rear shell are provided with uniformly distributed radiating fins.

The front shell is provided with a plurality of ventilation through holes.

The rear shell is provided with a joint; the connector is electrically connected with the motor controller.

A bearing seat is arranged behind the motor; a fixing pad is arranged in front of the motor; the bearing seat and the fixing pad are both fixedly connected with the shell; the inner ring of the bearing seat is fixedly connected with an output shaft of the motor; the fixed pad is fixedly connected with a stator of the motor.

A plurality of bulges extending along the axial direction are arranged on the inner side surface of the shell; the bearing seat and the fixing pad are respectively fixed on the front end and the rear end of the plurality of bulges.

The motor is an outer rotor motor.

The clutch comprises a throwing block fixing seat, a throwing block and a spring; the center of the swinging block fixing seat is fixedly connected with an output shaft of the motor; the two throwing blocks are arranged in a centrosymmetric mode; the one end of two flail blocks all rotates with the flail block fixing base to be connected, and the lateral surface of the other end of two flail blocks all is equipped with the arc friction disc, and the middle part of two flail blocks is passed through spring 43 and is connected.

A weeder comprises a weeder driving component and a weeder rod; the structure of the driving assembly of the weeding machine is consistent with that of the driving assembly of the weeding machine; the weeding rod is provided with a quick connector, a friction disc and a control handle; the weeding machine driving assembly is fixedly connected with the quick coupler; the friction disc is in a cylindrical shape with one open end, and a clutch of the driving assembly of the weeding machine extends into the friction disc to be matched with the friction disc to transfer kinetic energy; the control handle is electrically connected with a motor controller of the weeding machine driving assembly and used for sending an opening and closing control signal to the motor controller.

The quick connector comprises a fixed seat and a friction disc matched with the clutch; when the weeding machine driving assembly rotates, the swinging block of the clutch is opened to be in contact with the side wall of the friction disc cylinder, so that the weeding machine is driven.

The weeding part comprises a steering gear and a blade fixedly connected with the steering gear; the steering gear comprises a first transmission gear and a second transmission gear which are meshed with each other and have trapezoidal sections; the first transmission gear is driven to drive the second transmission gear, so that the blade is driven to rotate.

The control handle comprises a bent rod, a first handle and a second handle, wherein the first handle and the second handle are arranged at two ends of the bent rod; the middle part of the bent rod is fixedly connected with the weeding rod; a switch is arranged on the second handle; the switch is electrically connected with the motor controller.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

(1) the utility model discloses a weeder can be reequiped by traditional petrol weeder conveniently fast and come, can also install the clutch additional at the gasoline engine simultaneously to conveniently carry out the switching of power supply, solved traditional gasoline engine and polluted seriously, change whole weeder problem with high costs, convenient to use, energy-concerving and environment-protective satisfies the use of weeder under the multiple condition.

(2) The utility model discloses a weeder drive assembly casing divides into preceding shell and backshell, is convenient for install inside components and parts.

(3) The utility model discloses a be equipped with heat radiation fins on the weeder drive assembly casing, strengthened drive division's heat dispersion, prolonged life.

(4) The utility model discloses a be equipped with ventilative through-hole on the weeder drive assembly casing, further strengthened drive division's heat dispersion, prolonged life.

(5) The utility model discloses a be equipped with the joint on the weeder drive assembly casing, be convenient for open with handle control motor and stop and operating speed.

(6) The utility model discloses an inner circle of weeder drive assembly's bearing frame and the output shaft fixed connection of motor, the stator fixed connection of fixed bolster and motor makes the motor installation more stable.

(7) The utility model discloses an inboard is equipped with many along axially extended archs in the casing, and bearing frame and fixed bolster are fixed respectively on both ends around many archs, and it is very convenient to install.

(8) The utility model discloses an external rotor electric machine is used to the motor, compact structure, and occupation space is little.

(9) The utility model discloses a clutch of weeder drive assembly is under the drive of motor, because the effect of centrifugal force, gets rid of the piece and opens, and with friction disk contact transmission kinetic energy, during the stall, get rid of the piece because the tightening force effect of spring is closed, and transmission effect is good.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic structural view of the driving assembly of the weeding machine of the present invention.

Fig. 2 is a schematic view of the housing structure of the driving assembly of the weeding machine of the present invention.

Fig. 3 is a schematic cross-sectional view of the front shell structure of the present invention.

Fig. 4 is an electrical schematic diagram of the present invention, in which the housing is not shown.

Fig. 5 is a schematic structural view of the weed removing rod of the present invention.

Fig. 6 is an enlarged view of fig. 5 at a.

Fig. 7 is a schematic view of the internal structure of the weeding part of the present invention.

Fig. 8 is a schematic diagram of a state in which the gasoline engine and the motor are interchanged in embodiment 1 of the present invention.

The reference numbers in the drawings are as follows:

the heat dissipation structure comprises a shell 1, a front shell 11, a rear shell 12, a bulge 13, a joint 14, heat dissipation fins 15 and a ventilation through hole 16;

a motor controller 2;

the motor 3, the bearing seat 31 and the fixing pad 32;

the clutch 4, a swinging block fixing seat 41, a swinging block 42 and a spring 43;

the quick connector 5 and the fixed seat 51;

a friction disk 6;

the weeding portion 7, the steering gear 71, the blade 72, the first transmission gear 711, and the second transmission gear 712;

a control handle 8, a bent rod 81, a first handle 82 and a second handle 83.

Detailed Description

(example 1)

Referring to fig. 1 to 8, the weeding machine of the present embodiment includes a weeding machine drive unit and a weeding rod. The drive assembly for a weeding machine comprises a housing 1, a motor controller 2, a motor 3 and a battery fixed in the housing 1, and a clutch 4. The weeding rod is provided with a quick connector 5, a friction disc 6 and a control handle 8.

The clutch 4 is fixed to an output shaft of the motor 3. The battery, the motor controller 2 and the motor 3 are electrically connected in sequence. The motor controller 2 controls the rotation speed of the motor 3. The driving component of the weeding machine is fixedly connected with the quick coupler 5. The friction disc 6 is in a cylindrical shape with one open end, and the clutch 4 of the driving assembly of the weeding machine extends into the friction disc 6 to be matched with the friction disc 6 to transmit kinetic energy. The control handle 8 is electrically connected with the motor controller 2 of the weeding machine driving assembly and used for sending an on-off control signal to the motor controller 2.

For convenience of use, avoiding the trouble of replacing the battery, the battery is preferably a rechargeable battery, such as a lithium battery.

For ease of installation, the housing 1 includes a front shell 11 and a rear shell 12 fixedly connected to the front shell 11. The motor 3 is fixed in the front housing 11 and the motor controller 2 and battery are both fixed in the rear housing 12.

In order to facilitate heat dissipation, the outer side surfaces of the front shell 11 and the rear shell 12 are provided with uniformly distributed heat dissipation fins 15, and the front shell 11 is provided with a plurality of ventilation through holes 16.

In order to facilitate the adjustment of the motor start-stop and the operation speed on the handle, the rear shell 12 is provided with a joint 14. The connector 14 is electrically connected to the motor controller 2.

In order to enhance the power, the motor 3 is an external rotor motor.

In order to facilitate fixing and enhance the connection stability of the motor 3, a bearing seat 31 is arranged behind the motor 3. A fixing pad 32 is arranged in front of the motor 3. The bearing seat 31 and the fixing pad 32 are fixedly connected with the housing 1. The bearing housing 31 is rotatably connected to an output shaft of the motor 3. The fixing pad 32 is fixedly connected with the outer rotor of the motor 3.

For easy fixing and removal, the housing 1 is provided on its inner side with a plurality of axially extending projections 13. The bearing seat 31 and the fixing pad 32 are fixedly connected with the protrusion 13.

The clutch 4 comprises a throw block fixing seat 41, a throw block 42 and a spring 43. The center of the swinging block fixing seat 41 is fixedly connected with an output shaft of the motor 3. The slinger 42 is provided in two, and the two slingers 42 are arranged in a centrosymmetric manner. One end of each of the two throwing blocks 42 is rotatably connected with the throwing block fixing seat 41, the outer side faces of the other ends of the two throwing blocks 42 are respectively provided with an arc-shaped friction plate 421, and the middle parts of the two throwing blocks 42 are connected through a spring 43. When the motor 3 drives the clutch 4 to rotate, the swinging block 42 is opened due to the action of centrifugal force and contacts with the friction disc 6 to transmit kinetic energy, and when the rotation is stopped, the swinging block 42 is closed due to the action of the tightening force of the spring 43.

In order to facilitate the rotation of the throwing block 42, a convex mounting seat 411 is arranged on the front end face of the throwing block fixing seat 41, and the throwing block 42 is mounted on the mounting seat 411.

To facilitate installation and replacement of the drive assembly, the quick coupler 5 includes a fixed seat 51 and a friction disc 6 that cooperates with the clutch 4. The quick coupler 5 is fixedly connected, preferably by bolts, to the drive assembly of the weeding machine.

To facilitate mowing, the weeding portion 7 is at a proper angle, and the weeding portion 7 includes a steering gear 71 and a blade 72 fixedly connected to the steering gear 71. The steering gear includes a first gear tooth 711 and a second gear tooth 712 having trapezoidal cross sections that mesh with each other. By driving the first driving gear 711, the second driving gear 712 is driven, thereby driving the blade 72 to rotate.

To facilitate control of the driving portion of the weeding machine, the control handle 8 includes a bent rod 81 and a first handle 82 and a second handle 83 provided at both ends of the bent rod 81. The middle part of the bent rod 81 is fixedly connected with the weeding rod. The second handle 82 is provided with a switch. The switch 82 is electrically connected to the motor controller 2.

The working principle of the weeding machine of the embodiment is as follows: when the motor rotates, the throwing block 42 is subjected to centrifugal force to expand outwards to contact with the wall of the friction disc 6, so that the friction disc 6 is driven to rotate, and the blade 72 is driven to rotate to weed. The utility model has the advantages that only need take off original gasoline engine, install quick-operation joint 5 and friction disk 6 additional at the weeder pole, install weeder drive assembly and can change for motor drive fast, energy-concerving and environment-protective, simultaneously under necessary circumstances, need use the gasoline engine, only need install clutch 4 additional on the output shaft of gasoline engine, can reuse the gasoline engine drive. As shown in fig. 8, the present embodiment upgrades the conventional gasoline weeder to an energy-saving and environment-friendly electric weeder by applying the quick coupler 5, the friction disc 6 and the clutch 4, and simultaneously can rapidly switch two modes of motor driving and gasoline engine driving.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A drive assembly for a weeding machine, characterized in that: comprises a shell (1), a motor controller (2), a motor (3), a battery and a clutch (4), wherein the motor controller, the motor and the battery are fixed in the shell (1); the clutch (4) is fixed on an output shaft of the motor (3); the battery, the motor controller (2) and the motor (3) are electrically connected in sequence; the motor controller (2) controls the rotating speed of the motor (3).

2. A drive assembly for a weeding machine according to claim 1, wherein: the shell (1) comprises a front shell (11) and a rear shell (12) fixedly connected with the front shell (11); the motor (3) is fixed in the front shell (11), and the motor controller (2) and the battery are both fixed in the rear shell (12).

3. A drive assembly for a weeding machine according to claim 2, wherein: and the outer side surfaces of the front shell (11) and the rear shell (12) are provided with uniformly distributed radiating fins (15).

4. A drive assembly for a weeding machine according to claim 2, wherein: the front shell (11) is provided with a plurality of ventilation through holes (16).

5. A drive assembly for a weeding machine according to claim 2, wherein: the rear shell (12) is provided with a joint (14); the joint (14) is electrically connected with the motor controller (2).

6. A drive assembly for a weeding machine according to claim 2, wherein: a bearing seat (31) is arranged behind the motor (3); a fixing pad (32) is arranged in front of the motor (3); the bearing seat (31) and the fixing pad (32) are fixedly connected with the shell (1); the inner ring of the bearing seat (31) is fixedly connected with the output shaft of the motor (3); the fixed pad (32) is fixedly connected with a stator of the motor (3).

7. A drive assembly for a weeding machine according to claim 6, wherein: a plurality of protrusions (13) extending along the axial direction are arranged on the inner side surface of the shell (1); the bearing seat (31) and the fixing pad (32) are respectively fixed on the front end and the rear end of the plurality of bulges (13).

8. A drive assembly for a weeding machine according to claim 1, wherein: the motor (3) is an outer rotor motor.

9. A drive assembly for a weeding machine according to claim 1, wherein: the clutch (4) comprises a throwing block fixing seat (41), a throwing block (42) and a spring (43); the center of the swinging block fixing seat (41) is fixedly connected with an output shaft of the motor (3); the two throwing blocks (42) are arranged, and the two throwing blocks (42) are arranged in a central symmetry mode; one end of each throwing block (42) is rotatably connected with the throwing block fixing seat (41), the outer side face of the other end of each throwing block (42) is provided with an arc-shaped friction plate (421), and the middle parts of the two throwing blocks (42) are connected through a spring (43).

10. A weeding machine, characterized in that: comprises a weeder driving component and a weeder rod; the structure of the drive assembly of the weeding machine is identical to that of the drive assembly of the weeding machine of one of claims 1 to 9; the weeding rod is provided with a quick connector (5), a friction disc (6) and a control handle (8); the weeding machine driving assembly is fixedly connected with the quick connector (5); the friction disc (6) is in a cylindrical shape with one open end, and a clutch (4) of the driving assembly of the weeding machine extends into the friction disc (6) to be matched with the friction disc (6) to transmit kinetic energy; the control handle (8) is electrically connected with the motor controller (2) of the weeding machine driving assembly and used for sending an opening and closing control signal to the motor controller (2).