CN2781743Y

CN2781743Y - Hand and electric weeder blade disk

Info

Publication number: CN2781743Y
Application number: CNU2005200711103U
Authority: CN
Inventors: 王建钢
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-20
Filing date: 2005-04-20
Publication date: 2006-05-24
Anticipated expiration: 2015-04-20

Abstract

The utility model relates to a cutter head of a hand-held electric grass cutter. The utility model is characterized in that the cutter head is composed of a head body, blades and torsion springs, wherein a center bore of the head body is connected with an output shaft of a motor for the grass cutter, blade shafts are distributed on the surface of the head body along a circumference direction, the end parts of the blades are hinged on the head body by the blade shafts, and cutter bodies of the utility model are spread around; the torsion springs are sheathed on the blade shafts and act on the blades and the head body so as to limit the free rotation of the blades. The utility model adopts the method of cutting grass by the blades instead of the method of removing the grass by nylon wires, has a low requirement to the rotational speed of the motor and can work normally at the rotational speed of 5000-6000r/min, the noise and the vibration of the utility model follow the low rotational speed to be reduced, and the utility model has simple structure and safe running.

Description

Hand electric mower cutterhead

Technical field

The utility model relates to a kind of cutterhead of mower, is specifically related to a kind of cutterhead of hand electric mower.

Background technology

Therefore the working method that traditional hand-held mower all adopts nylon wire to beat the grass, is also referred to as the hand-held mower.This kind mower structurally is to be made of motor, motor blower fan and actinobacillus device, during work, actinobacillus device and motor blower fan are by the driven by motor high speed rotating, actinobacillus device is emitted nylon wire with action of centrifugal force under high speed rotating, lash grass with the nylon wire that this high speed rotating throws away, grass is interrupted.

The smooth unwrapping wire of this mower and the dynamics that nylon wire is beaten the grass all will be guaranteed by high speed rotating, therefore, for satisfying the unwrapping wire requirement and the requirement of beating the grass, the machine operation rotating speed of this mower needs very high, generally will reach about 10000r/min, machine operation rotating speed height has just brought a series of problems such as noise is big, vibration is big, therefore be difficult to satisfy international requirement, sell to external.And, this mower complex structure, faults such as nylon wire jam take place in regular meeting when beating the grass, and make troubles for user's use.

Summary of the invention

The utility model provides a kind of hand electric mower cutterhead, from changing the angle of mowing principle, basic big, the problems such as vibration is big, easy break-down of noise that solve existing hand-held mower existence.

For achieving the above object, the technical solution adopted in the utility model is: a kind of hand electric mower cutterhead, constitute by disk body, blade and torsion spring, described disk body centre bore is connected with the output shaft of mower motor, disc surfaces along the circumferential direction is distributed with blade shaft, the end of described blade is hinged on the disk body by blade shaft, and its blade is to launching all around; Described torsion spring set is located on the blade shaft, and acts between blade and disk body, limits freely rotating of blade.

Related content in the technique scheme is explained as follows:

1, in the such scheme, is more compact structure, cutterhead can be combined with motor blower fan that concrete scheme is: disk body is provided with fan blade towards the one side of motor, and blade shaft along the circumferential direction distributes on the another side.

2, in the such scheme, after wearing and tearing, can change easily, can adopt detachable blade for blade, this blade end is provided with springhole, this springhole one end is big, an end is little, and blade shaft is located in this springhole, and the coordination hinge of blade by springhole and blade shaft is on disk body.

3, in the such scheme, can be according to client's the difference requirement and the size of power of motor, hinged two, three, four or more blade on disk body; Its blade also can be selected as required, adopts plastic blade or metal blade.

The utility model operation principle is: with the driven by motor cutterhead rotation of mower, its flared blade is rotation thereupon also, efficiently grass is cut off; Wherein, blade is to be hinged on the disk body, and utilizes a torsion spring that auxiliary torsion is provided, and makes blade have enough power that various grass are cut off, and when touching hard foreign matter, and blade overcomes torsion spring power turns back automatically and dodge, and has both protected blade, has improved safety again.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, because the utility model has adopted blade, rotating speed of motor is required to reduce, about 5000-6000r/min, get final product operate as normal, the noise of its generation and vibration are little, can reach international standard.

2, equally because the utility model has adopted blade, change traditional working method of beating the grass into mowing, make disconnected careless effect better, improved operating efficiency.

3, the utility model is simple in structure, and fault rate is low.

4, the utility model adopts detachable blade, can change easily behind blade abrasion, can adopt the blade of different materials simultaneously according to different needs.

5, owing to be hinged between blade of the present utility model and disk body, and between them, add torsion spring, so not only can be adapted to the finishing on different lawns, (direction that can adjust blade when blade is touched hard thing is automatically dodged hard thing also to have improved completeness, protected blade, also guaranteed operator's safety); And this torsion spring also makes blade can keep balance automatically in running up, and has reduced vibration.

Description of drawings

Accompanying drawing 1 is looked schematic diagram for the master of embodiment;

Accompanying drawing 2 is the schematic rear view of accompanying drawing 1;

Accompanying drawing 3 is looked the complete section schematic diagram for the left side of accompanying drawing 1;

Accompanying drawing 4 is the schematic diagram of embodiment when using in the hand electric mower.

In the above accompanying drawing: 1, disk body; 2, blade; 3, torsion spring; 4, motor; 5, blade shaft; 6, fan blade; 7, springhole; 8, hand electric mower; 9, torsion spring connecting hole; 10, convex tendon; 11, torsion spring connecting hole; 12, centre bore.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: shown in accompanying drawing 1～accompanying drawing 4, a kind of hand electric mower cutterhead, by a disk body 1, three blades 2 and three torsion springs 3 constitute, disk body 1 centre bore 12 is connected with the output shaft of mower motor 4, disk body 1 is provided with fan blade 6 towards the one side of motor 4, along the circumferential direction be distributed with three blade shafts 5 on the another side, three blades 2 are detachable blade, its end is provided with springhole 7, these springhole 7 one ends are big, one end is little, blade shaft 5 is located in this springhole 7, the coordination hinge of three outer blades 2 by springhole and 7 blade shafts 5 on disk body 1, its blade to around launch; Described three torsion springs 3 are set in respectively on three blade shafts 5, and act on 1 of blade 2 and disk body, freely the rotating of restriction blade 2.

Be equipped with torsion spring connecting hole 9 on the blade 2, disk body 1 is provided with a circle convex tendon 10, and also corresponding torsion spring 3 is provided with torsion spring connecting hole 11 on the convex tendon 10, and torsion spring 3 one ends are stuck on the blade 2 in the torsion spring connecting hole 9, the other end is stuck in the torsion spring connecting hole 11 on the convex tendon 10, acts on 1 of blade 2 and disk body with this.

The blade 2 concrete metal blades that adopt.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of hand electric mower cutterhead, it is characterized in that: this cutterhead is made of disk body [1], blade [2] and torsion spring [3], described disk body [1] centre bore [12] is connected with the output shaft of mower motor [4], disk body [1] surface along the circumferential direction is distributed with blade shaft [5], the end of described blade [2] is hinged on the disk body [1] by blade shaft [5], and its blade is to launching all around; Described torsion spring [3] is set on the blade shaft [5], and acts between blade [2] and disk body [1], limits freely rotating of blade [2].

2, hand electric mower cutterhead according to claim 1 is characterized in that: described disk body [1] is provided with fan blade [6] towards the one side of motor [4], and blade shaft [5] along the circumferential direction distributes on the another side.

3, hand electric mower cutterhead according to claim 1, it is characterized in that: described blade [2] is a detachable blade, its end is provided with springhole [7], these springhole [7] one ends are big, an end is little, blade shaft [5] is located in this springhole [7], and the coordination hinge of blade [2] by springhole and [7] blade shaft [5] is on disk body [1].

4, hand electric mower cutterhead according to claim 1 is characterized in that: be hinged with two, three or four blades [2] on the described disk body [1].