阅读说明：本技术 一种用于农业作业的小型除草机 (Small-sized weeder for agricultural operation ) 是由 程俊 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种用于农业作业的小型除草机,其包括机体(1)、电机(2)、蓄电池组(3)、鼓风机(4)、收集箱(5)、切割轮(6)、收集罩(7)、扶手(8),鼓风机包括壳体、离心式叶轮,叶轮包括后板(41)、前板(42)、叶片组,叶片组连接于后板与前板之间,其特征在于：所述叶片组包括多个长叶片(43)、中叶片(44)、短叶片(45),多个长叶片、中叶片、短叶片沿周向交错布置；所述多个长叶片、中叶片、短叶片的数量比为1:2:1。其能够显著增大鼓风机风量,降低草料聚集、阻塞的风险。(The invention discloses a small-sized weeder for agricultural operation, which comprises a machine body (1), a motor (2), a storage battery (3), a blower (4), a collecting box (5), a cutting wheel (6), a collecting cover (7) and a handrail (8), wherein the blower comprises a shell and a centrifugal impeller, the impeller comprises a rear plate (41), a front plate (42) and a blade group, and the blade group is connected between the rear plate and the front plate, and the small-sized weeder is characterized in that: the blade group comprises a plurality of long blades (43), middle blades (44) and short blades (45), and the long blades, the middle blades and the short blades are arranged in a staggered mode along the circumferential direction; the number ratio of the long blades, the middle blades and the short blades is 1:2: 1. The air volume of the air blower can be remarkably increased, and the risk of forage accumulation and blockage is reduced.)

1. The utility model provides a small-size weeder for agricultural operation, it includes organism (1), motor (2), storage battery (3), air-blower (4), collecting box (5), cutting wheel (6), collect cover (7), handrail (8), be provided with the motor on the organism, storage battery, the air-blower, the collecting box, the handrail, be connected with the cutting wheel in the pivot of motor, the motor is connected with storage battery and/or the motor passes through power connection and is used for connecting the commercial power, the lower extreme of air-blower is connected with and collects the cover, it is used for collecting the forage that the cutting wheel cut down to collect the cover, the upper end or the side of air-blower are connected with the collecting box, the air-blower includes the casing, centrifugal impeller, the impeller includes back plate (41), front bezel (42), the blading, blading connects between: the blade group comprises a plurality of long blades (43), middle blades (44) and short blades (45), and the long blades, the middle blades and the short blades are arranged in a staggered mode along the circumferential direction.

2. A mini-tiller for use in agricultural operations as defined in claim 1, wherein said plurality of long blades, medium blades, and short blades are provided in a number ratio of 1:2: 1.

3. A small weeding member for agricultural work according to claim 2, wherein the radially outer portion of the back plate (41) has an inclined portion (46) at an angle of 15-25 ° to the longitudinal line.

4. A mini-tiller for use in agricultural operations, as claimed in claim 3, wherein said inclined portion (46) has a radial length Y, said front plate (42) has a radial length X, and the edge of said long blade (43) on the side thereof adjacent to said front plate has a radial length P, X < P < Y.

5. A mini-tiller for use in agricultural operations as defined in claim 4, wherein X = (0.35-0.5) Y, P = (0.68-0.84) Y.

6. A miniature weeding machine for agricultural operations as claimed in claim 4, wherein the edge of the center blade (44) on the side close to the back plate has a radial length Y.

7. A small size weeding machine for agricultural operations as claimed in claim 2, wherein the radially inner edges of said plurality of long blades (43) have serrations (47) that are obliquely arranged with respect to the rotation axis of the impeller.

Technical Field

The invention relates to the technical field of small agricultural operation machinery, in particular to a small weeding machine for agricultural operation.

Background

Small-sized weeders are commonly used for agricultural work, inter-plant weeding work and the like, and are mainly used for weeding work of small-area grasslands, gardens, inter-plant weeds and the like. However, the existing small-sized weeder has the problems of small air volume and easy aggregation of forage when the forage is collected.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a small weeder for agricultural operation, wherein when a blower of the small weeder for agricultural operation collects forage, the area of an outlet of an impeller and the working efficiency of blades at the outlet of the impeller can be increased through the design of an impeller structure, so that the air volume of the blower is remarkably increased; can carry out certain cutting/crushing to inhaling the forage through the design of this sawtooth portion to reduce forage gathering, obstructed risk.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a small-size weeder for agricultural operation, it includes organism (1), motor (2), storage battery (3), air-blower (4), collecting box (5), cutting wheel (6), collect cover (7), handrail (8), be provided with the motor on the organism, storage battery, the air-blower, the collecting box, the handrail, be connected with the cutting wheel in the pivot of motor, the motor is connected with storage battery and/or the motor passes through power connection and is used for connecting the commercial power, the lower extreme of air-blower is connected with and collects the cover, it is used for collecting the forage that the cutting wheel cut down to collect the cover, the upper end or the side of air-blower are connected with the collecting box, the air-blower includes the casing, centrifugal impeller, the impeller includes back plate (41), front bezel (42), the blading, blading connects between: the blade group comprises a plurality of long blades (43), middle blades (44) and short blades (45), and the long blades, the middle blades and the short blades are arranged in a staggered mode along the circumferential direction.

Further, the number ratio of the plurality of long blades, the plurality of medium blades and the plurality of short blades is 1:2: 1.

Further, the radially outer portion of the back plate (41) has an inclined portion (46) having an angle of 15-25 ° with the longitudinal line.

Further, the inclined portion (46) has a radial length Y, the front plate (42) has a radial length X, and the edge of the long blade (43) on the side close to the front plate has a radial length P, X < P < Y.

Further, X = (0.35-0.5) Y, P = (0.68-0.84) Y.

Further, the edge of the middle blade (44) on the side close to the back plate has a radial length Y.

Further, the radially inner edges of the plurality of long blades (43) have serrations (47) that are disposed obliquely with respect to the rotational axis of the impeller.

When the air blower of the small-sized weeder for agricultural operation collects forage, the area of the outlet of the impeller and the working efficiency of the blades at the outlet of the impeller can be increased through the design of the impeller structure, so that the air volume of the air blower is remarkably increased; can carry out certain cutting/crushing to inhaling the forage through the design of this sawtooth portion to reduce forage gathering, obstructed risk.

Drawings

FIG. 1 is a schematic view of a small-sized weeder for agricultural work according to the present invention;

FIG. 2 is a schematic view of the blower impeller configuration of the present invention;

fig. 3 is a schematic view of the structure of the blower impeller of the present invention.

In the figure: machine body 1, motor 2, battery pack 3, blower 4, collecting box 5, cutter/cutter wheel 6, collecting cover 7, handrail 8, rear plate 41, front plate 42, long blade 43, middle blade 44, short blade 45, inclined part 46, saw-toothed part 47.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, a small-sized weeder for agricultural operation comprises a machine body 1, a motor 2, a storage battery 3, a blower 4, a collecting box 5, a cutting knife/cutting wheel 6, a collecting cover 7 and a handrail 8, wherein the machine body 1 is provided with the motor 2, the storage battery 3, the blower 4, the collecting box 5 and the handrail 8, a rotating shaft of the motor 2 is connected with the cutting knife/cutting wheel 6, the motor 2 is connected with the storage battery 3 and/or the motor 2 is connected with a mains supply through a power supply connector, the lower end of the blower 4 is connected with the collecting cover 7, the collecting cover 7 is used for collecting forage cut by the cutting knife/cutting wheel 6, the upper end or the side edge of the blower 4 is connected with the collecting box 5, the blower 4 comprises a shell and a centrifugal impeller, the impeller comprises a rear plate 41, a front plate 42 and a blade, the method is characterized in that: the blade group comprises a plurality of long blades 43, middle blades 44 and short blades 45, and the long blades 43, the middle blades 44 and the short blades 45 are uniformly arranged in a staggered mode along the circumferential direction.

The plurality of long blades 43, middle blades 44, and short blades 45 have different radial lengths, and the number ratio of the plurality of long blades 43, middle blades 44, and short blades 45 is 1:2: 1.

The radially outer portion of the back plate 41 has an inclined portion 46, the angle between the inclined portion 46 and the longitudinal/vertical line being 15-25 °, preferably 20 °; the inclined portion 46 has a radial length Y, the front plate 42 has a radial length X, the edge of the long blade 43 on the side close to the front plate 42 has a radial length P, X < P < Y; when the air blower collects forage, the area of the outlet of the impeller and the working efficiency of the blades at the outlet of the impeller can be increased through the design of the impeller structure, so that the air volume of the air blower is remarkably increased. Further, X = (0.35-0.5) Y, preferably 0.42; p = (0.68-0.84) Y, preferably 0.76. The edge of the middle vane 44 on the side close to the backplate 41 has a radial length Y.

The radially inner edges of the plurality of long blades 43 have serrations 47, the serrations 47 being arranged obliquely with respect to the axis of rotation of the impeller, and the serrations being designed to cut/pulverize the sucked fodder to a certain extent, thereby reducing the risk of the fodder accumulating and clogging.

When the air blower of the small-sized weeder for agricultural operation collects forage, the area of the outlet of the impeller and the working efficiency of the blades at the outlet of the impeller can be increased through the design of the impeller structure, so that the air volume of the air blower is remarkably increased; can carry out certain cutting/crushing to inhaling the forage through the design of this sawtooth portion to reduce forage gathering, obstructed risk.

The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.