CN203264819U

CN203264819U - Cutting component of gardening cutting tool

Info

Publication number: CN203264819U
Application number: CN 201320185463
Authority: CN
Inventors: 孔钊; 卞小贤; 史建峰
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2013-04-12
Filing date: 2013-04-12
Publication date: 2013-11-06
Anticipated expiration: 2023-04-12

Abstract

The utility model discloses a cutting component of a gardening cutting tool. The cutting component comprises a cutter head stand and a blade, wherein the cutter head stand is provided with a rotating axis. The cutter head stand is provided with a mounting table on which the blade is arranged, the mounting table comprises a locating surface which is in contact with the blade, the locating surface and the rotating axis are parallel each other, and the locating surface comprises a horizontal surface which is in contact with a small part of the bottom surface of the blade. The cutting component of the gardening cutting tool is simple in manufacturing process, and low in cost.

Description

The cutting part of gardening cutting tool

Technical field

The utility model relates to a kind of cutting part of gardening cutting tool.

Background technology

Cutting tool in garden instrument as chipper, grass-mowing machine, hay mover etc., is nowadays used more and more widely.Chipper generally is divided into quick chipper and quiet chipper in the market.As its name suggests, quick chipper, 1480752B1 discloses as European patent EP, the rotary speed of its motor is than very fast, common motor speed is 4000 rev/mins, so smaller to the scrap rate of branch, be conducive to chip carrying, bury or other processing; But also brought simultaneously larger noise, and it carries out opposite direction to branch and vertically rive, the reverse impulse force to branch during cutting is larger, also causes the impulsive force of the hand of holding branch also larger.And quiet chipper discloses as world patent WO2009080424A1, and its motor speed is lower, be generally 400 rev/mins, so its noise that brings is smaller, but simultaneously also brought larger scrap rate, be unfavorable in chip carrying, bury or other processing.So all there is certain defective in the market this two class chippers.

In addition, the cutterhead support of the cutting part of chipper is generally made by a plurality of production processes in the market, such as mould manufacturing and boring etc., causes like this its production technology more complicated, and manufacturing cost is higher.

The utility model content

The purpose of this utility model is to provide a kind of cutting part of gardening cutting tool for defects of the prior art, and its manufacturing process is fairly simple, with low cost.

For realizing above-mentioned utility model purpose, the utility model has adopted following main technical schemes: a kind of cutting part of gardening cutting tool, comprise cutterhead support and blade, described cutterhead support has rotation, it is characterized in that: described cutterhead support is provided with erecting bed so that described blade to be installed, described erecting bed comprises and the contacted locating surface of described blade, described locating surface and described rotation are parallel to each other, and described locating surface comprises horizontal plane, and described horizontal plane contacts with the sub-fraction of the bottom surface of described blade.

In addition, the utility model also provides following attached technical scheme:

Described cutterhead support is formed in one.

Described locating surface also comprises vertical plane, and described vertical plane contacts with the side of described blade.

Described horizontal plane and described vertical plane are thin-and-long.

Described erecting bed also is provided with and the non-contacting inclined plane of described blade, and the Area Ratio on described horizontal plane and described inclined plane is roughly 1: 5.

Described cutterhead support is one-body molded U-shaped hole.

Described blade arranges screw hole, and described U-shaped hole and described screw hole interconnect by screw.

Described cutterhead support is collar plate shape.

The quantity of described erecting bed is a plurality of.

It is chipper for described gardening cutting tool.

Than prior art, the utility model has the advantage of: the cutterhead support of the cutting part of the utility model cutting tool is by arranging erecting bed, the locating surface matched with blade is set on erecting bed, and wherein the rotation of locating surface and cutterhead support is parallel to each other, and with blade between contact for small size, like this, when satisfying blade and being mounted to smoothly the cutterhead support, realized the one-shot forming of cutterhead support, need not following process, so manufacturing process is simple, with low cost.

Description of drawings

Fig. 1 is the stereogram corresponding to the utility model preferred embodiment cutting tool.

Fig. 2 is the three-dimensional installation diagram of the cutting part of cutting tool in Fig. 1.

Fig. 3 is the three-dimensional installation diagram of cutting tool when the another location of Fig. 2.

Plan view when Fig. 4 is the cutting part cutting branch of Fig. 2.

Fig. 5 is the part three-dimensional exploded view of the cutting part in Fig. 2.

Fig. 6 is the plan cross-sectional view of cutting part in Fig. 2.

Fig. 7 is the enlarged drawing of a circle in the figure.

Fig. 8 is every group of blade and its branch schematic cross-section when the cutting branch of the cutting part in Fig. 2.

Fig. 9 is the stereogram of the blade carrier of cutting tool in Fig. 1.

The specific embodiment

Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solutions of the utility model are done further nonrestrictive detailed description.

See figures.1.and.2, be chipper 10 in garden instrument corresponding to the cutting tool of the utility model preferred embodiment, it is used for the chopping of branch so that the transportation of the branch after chopping, bury or other processing, mainly comprises head part 12 and bracing frame 14.Interior the driver part (not shown) is set at head part 12, by the cutting part 1 of 12 high-speed driving of driver part, so that material to be cut branch 7 is shredded.

With further reference to Fig. 3 to Fig. 5, above-mentioned cutting part 1 comprises cutterhead support 3 and is arranged on several blade 5 on described cutterhead support 3.This cutterhead support 3 is roughly disc, and its center arranges axle sleeve 32 and is positioned at the rotation E of axle sleeve 32, and has periphery wall F, and this periphery wall F has the first diameter L1.Described cutterhead support 5 is formed in one, and is provided with the equal erecting bed 36 of a plurality of spacings so that corresponding blade 5 to be installed on the periphery wall F of cutterhead support 3.As shown in Figure 6 and Figure 7, each erecting bed 36 comprises that several locating surfaces 33 are to support above-mentioned blade 5.Described locating surface 33 comprises a vertical plane 37 and a pair of horizontal plane 38, described horizontal plane 38 and described vertical plane 37 are thin-and-long, contact with bottom surface and the side of described blade 5 respectively, this just contacts with the sub-fraction of the bottom surface 57 of described blade 5 to horizontal plane 38 like this, and vertical plane 37 and horizontal plane 38 all are parallel to each other with described rotation E.Also one-body molded between this is to horizontal plane 38 have an a pair of installing hole 39, and its shape is roughly U-shaped, is distributed in the inside and outside both sides of periphery wall F.And blade 5 arranges screw hole 54, and installing hole 39 interconnects by screw 56 with screw hole 54.In addition, erecting bed 36 also is provided with and the non-contacting inclined plane 53 of described blade 5, and corresponding to the utility model preferred embodiment, plane 38 is probably 1: 5 with the Area Ratio on inclined plane 53; Like this, be the contacting of facet area between blade 5 of the present utility model and cutterhead support 3, because if the area of plane that should contact is too large, depanning difficulty or do not go out mould in the time of can causing 3 depanning of cutterhead support is because need very large withdrawing pattern power; And if all make the inclined plane, depanning meeting ratio is easier to, but blade 5 will be installed also need the later stage machined, causes manufacturing cost to rise.So the way of contact of this small size has guaranteed the one-body molded smoothly of cutterhead support 5, need not following process, and is so manufacturing process is simple, with low cost.

As shown in Figure 8, above-mentioned much knives sheet 5 corresponding to the utility model preferred embodiment, is divided into two groups, and every group has 4 blade A, B, C and D, is arranged on successively on corresponding erecting bed 36.Each blade 5 has several tooth-like parts 52, and the circumference connecting line G of the crown 56 of described tooth-like part 52 has Second bobbin diameter L2, and the angle of crown 56 is the 30-40 degree.Above-mentioned material to be cut branch 7 has feeding axis H and amount of feeding P, and wherein feeding axis H is roughly vertical with described rotation E, and described amount of feeding P is roughly half of difference of described Second bobbin diameter L2 and described the first diameter L1.The facewidth of each tooth-like part 52 is for being made as W, and between the crown 56 of the adjacent blade in twos of above-mentioned every group of blade 5 along the rotation E mutual dislocation of described cutterhead support 3, this magnitude of misalignment is 1/4W, like this, when cutting, branch 7 relies on backgauge dish 9 to cut, and 4 of every group of blade of High Rotation Speed can cut sub-fraction A1, B1, C1 and the D1 of the cross section of branch 7 successively to blade A, B, C and D, thereby produces more tiny chip.Like this, by above-mentioned setting, cutting part 1 of the present utility model can not only make the scrap rate of branch more tiny, and the reverse impact power that the cutting part 1 of this cutter head type produces is smaller, so the noise that produces is lower, make the blade carrier 20 (Fig. 9) that cutting part 1 be used for to be installed of cutting tool of the present utility model can be one-body molded by plastic material, make and need not metal material, also need not subsequent tool, thereby also can save production cost.

It is to be noted; above-mentioned preferred embodiment only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow person skilled in the art scholar can understand content of the present utility model and implement 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, within all should being encompassed in protection domain of the present utility model.

Claims

1. the cutting part of a gardening cutting tool, comprise cutterhead support and blade, described cutterhead support has rotation, it is characterized in that: described cutterhead support is provided with erecting bed so that described blade to be installed, described erecting bed comprises and the contacted locating surface of described blade, described locating surface and described rotation are parallel to each other, and described locating surface comprises horizontal plane, and described horizontal plane contacts with the sub-fraction of the bottom surface of described blade.

2. the cutting part of gardening cutting tool as claimed in claim 1, it is characterized in that: described cutterhead support is formed in one.

3. the cutting part of gardening cutting tool as claimed in claim 2, it is characterized in that: described locating surface also comprises vertical plane, described vertical plane contacts with the side of described blade.

4. the cutting part of gardening cutting tool as claimed in claim 3, it is characterized in that: described horizontal plane and described vertical plane are thin-and-long.

5. the cutting part of gardening cutting tool as claimed in claim 1, it is characterized in that: described erecting bed also is provided with and the non-contacting inclined plane of described blade, and the Area Ratio on described horizontal plane and described inclined plane is roughly 1:5.

6. the cutting part of gardening cutting tool as claimed in claim 1 is characterized in that: described cutterhead support is one-body molded U-shaped hole.

7. the cutting part of gardening cutting tool as claimed in claim 6, it is characterized in that: described blade arranges screw hole, and described U-shaped hole and described screw hole interconnect by screw.

8. the cutting part of gardening cutting tool as claimed in claim 1, it is characterized in that: described cutterhead support is collar plate shape.

9. the cutting part of gardening cutting tool as claimed in claim 1, it is characterized in that: the quantity of described erecting bed is a plurality of.

10. as the cutting part of the described gardening cutting tool of claim 1-9 any one, it is characterized in that it is chipper.