CN206728597U - A kind of grass-smashing reamer - Google Patents

Abstract

The utility model discloses a kind of grass-smashing reamer, including：Cutter hub, cutter hub include rear end and front end, and rear end is handle of a knife, and front end is cutting portion；The both sides of cutting portion are provided with the first cutting edge and the second cutting edge；First cutting edge and the second cutting edge are to be tilted from a surface of cutter hub to another surface, form an inclined plane；Shape has angle between inclined plane and the surface of cutter hub, and the angle is 10 15 °.The utility model reduces the cutting resistance of grass-smashing reamer cutting edge, therefore, is easier to shred millet straw when carrying out millet straw chopping, chopping result is good, improves the field effect of millet straw.

Description

A kind of grass-smashing reamer

Technical field

Harvester equipment technical field is the utility model is related to, espespecially a kind of grass-smashing reamer.

Background technology

In order to reduce cost, use manpower and material resources sparingly, environmental pollution and reach increasing that environmental protection, reduction crop straw burning are brought Add soil fertility, improve the purpose of resources, broken careless returning mechanism is commonly provided with harvester, and grass-smashing reamer is total Into the main function components for being broken careless returning mechanism, grass-smashing reamer blade is the important component of grass-smashing reamer assembly.

The grass-smashing reamer blade of existing grass-smashing reamer assembly is respectively provided with bilateral cutting edge, and the basil of this bilateral cutting edge is big, leads Cause not shredding millet straw completely because grass-smashing reamer shearing force is little during broken careless returning to the field, cause millet straw field effect poor；Again Because the millet straw having is softer and the branch of the upper part of general millet straw is more and more fluffy, when chopping result is bad, this The upper part branch of a little softer millet straws and millet straw is easily wrapped on grass-smashing reamer handle of a knife or cutter shaft, when winding is serious When, staff must often suspend harvester and carry out relevant treatment, then be operated again, this can undoubtedly reduce staff Operating efficiency, to the particularly time in busy farming season be eager harvest achievement people bring very big inconvenience.

In summary, the applicant is directed to studying a kind of good grass-smashing reamer of chopping result.

The content of the invention

The purpose of this utility model is to provide a kind of grass-smashing reamer, reduces the cutting resistance of grass-smashing reamer cutting edge, therefore, is entering It is easier to shred millet straw when row millet straw is shredded, chopping result is good, improves the field effect of millet straw.

The technical scheme that the utility model is provided is as follows：

A kind of grass-smashing reamer, including：

Cutter hub, the cutter hub include rear end and front end, and the rear end is handle of a knife, and the front end is cutting portion；

The both sides of the cutting portion are provided with the first cutting edge and the second cutting edge；

First cutting edge and second cutting edge are to be tilted from a surface of the cutter hub to another surface, form one Inclined plane；

Shape has angle between the surface of the inclined plane and the cutter hub, and the angle is 10-15 °.

In the technical program, because the basil of grass-smashing reamer is small, therefore the cutting resistance of cutting edge is small, when carrying out millet straw chopping Easily millet straw is shredded, chopping result is good, improves the field effect of millet straw；It is also greatly reduced because of millet straw chopping result not Good caused grass-smashing reamer handle of a knife and cutter shaft twine careless probability, therefore also reduce and restart energy waste caused by machine. Because the shearing force of grass-smashing reamer is larger, therefore in actual applications, the cutting edge of grass-smashing reamer is less likely to occur to wear the linear of rust, The service life of grass-smashing reamer is improved, so as to add the reliability of returning mechanism in harvester, and reduces the whole of harvester Machine load.It is easy to process because grass-smashing reamer cutting edge is unilateral cutting edge, reduce the processing cost of grass-smashing reamer.

It is further preferred that the thickness range of the cutter hub is 3-5mm.

In the technical program, the thickness of cutter hub is also smaller while angle is less than normal, therefore cutting edge is more thin, and cutting edge is more It is sharp, further such that when carrying out millet straw chopping, cutting edge is easier to shred millet straw, and chopping result is more preferable, improves The field effect of millet straw.

It is further preferred that the width range of the cutter hub is 40-60mm.

In the technical program, the thickness of grass-smashing reamer is smaller, and cutter hub is wide, and according to geometrical principle, therefore cutting edge is wider, cutting edge mill It is larger to damage surplus, processing is more convenient, and the service life of grass-smashing reamer is also improved while reducing production cost.

It is further preferred that the width range of the inclined plane is 10-20mm.

In the technical program, cutting edge is wider, therefore cutting edge wear allowance is larger, and processing is more convenient, reduces production cost While also improve the service life of grass-smashing reamer.

It is further preferred that first cutting edge and second cutting edge are arranged in parallel；Or；First cutting edge with Second cutting edge is oppositely arranged.

The inclined plane is in line shape structure, arcuate structure or zigzag structure.

In the technical program, according to the distribution situation of the upper undershoot for the millet straw for being actually needed chopping and its soft or hard degree and Chopping result selects the planform of cutting edge (i.e. inclined plane) so that grass-smashing reamer has corresponding relation, Jin Erti with millet straw The utilization ratio of high grass-smashing reamer.

It is further preferred that the connecting hole for connecting is provided with the handle of a knife.

In the technical program, the setting of connecting hole can make grass-smashing reamer and returning mechanism is detachable links together, When needing that the grass-smashing reamer on returning mechanism is repaired or replaced, grass-smashing reamer can be removed from returning mechanism, and carry out Associative operation.

By grass-smashing reamer provided by the utility model, following at least one beneficial effect can be brought：

1. in the utility model, because the basil of grass-smashing reamer is small, therefore cutting resistance is small, more hold when carrying out millet straw chopping Easily millet straw is shredded, chopping result is good, improves the field effect of millet straw；It is also greatly reduced because of the bad institute of millet straw chopping result Caused grass-smashing reamer handle of a knife and cutter shaft twine careless probability, therefore also reduce and restart energy waste caused by machine.Due to The shearing force of grass-smashing reamer is larger, therefore in actual applications, the cutting edge of grass-smashing reamer is less likely to occur to wear the linear of rust, improves The service life of grass-smashing reamer, so as to add the reliability of returning mechanism in harvester, and the complete machine for reducing harvester is born Lotus.It is easy to process because grass-smashing reamer cutting edge is unilateral cutting edge, reduce the processing cost of grass-smashing reamer.

2. in the utility model, the thickness of grass-smashing reamer is smaller, but cutting edge is wider, therefore cutting edge wear allowance is larger, processing It is more convenient, the service life of grass-smashing reamer is also improved while reducing production cost.

Brief description of the drawings

Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to a kind of above-mentioned spy of grass-smashing reamer Property, technical characteristic, advantage and its implementation are further described.

Fig. 1 is a kind of main view schematic diagram of embodiment of the present utility model；

Fig. 2 is Fig. 1 right view structural representation.

Drawing reference numeral explanation：

100. cutting portion, 110. first cutting edges, 120. second cutting edges, 130. upper surfaces, 140. lower surfaces, 200. handle of a knifes, 210. connecting hole.

Embodiment

In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, accompanying drawing will be compareed below Illustrate specific embodiment of the present utility model.It should be evident that drawings in the following description are only of the present utility model one A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these Accompanying drawing obtains other accompanying drawings, and obtains other embodiments.

To make simplified form, the part related to the utility model is only schematically show in each figure, they are not Represent its practical structures as product.In addition, so that simplified form readily appreciates, there is identical structure or work(in some figures The part of energy, only symbolically depicts one of those, or only marked one of those.Herein, during description with Left and right in figure is left and right, is upper and lower with upper and lower in scheming, not fully represents actual conditions.

In embodiment one, as illustrated in fig. 1 and 2, a kind of grass-smashing reamer, including cutter hub (not indicated in figure), the rear end of cutter hub For handle of a knife 200, front end is cutting portion 100；The both sides of cutting portion 100 are provided with the first cutting edge 110 and the second cutting edge 120；First sword Mouth 110 is that the first inclined plane (i.e. the first cutting edge 110) formed is tilted from the upper surface 130 of cutter hub to its lower surface 140；Second Cutting edge 120 is that the second inclined plane (i.e. the second cutting edge 120) formed is tilted from the lower surface 140 of cutter hub to upper surface 130；First The angle α that inclined plane and lower surface 140 are formed is 10-15 °, and the angle β of the second inclined plane and the formation of upper surface 130 is 10- 15°.Because α and β span are smaller, therefore the cutting resistance of cutting edge (i.e. the first cutting edge 110 and the second cutting edge 120) is small, It is easier to shred millet straw when carrying out millet straw chopping, chopping result is good, improves the field effect of millet straw；It is also greatly reduced The handle of a knife 200 of grass-smashing reamer caused by millet straw chopping result is bad and the cutter shaft for installing grass-smashing reamer twine careless probability； It is thus also avoided that because shutdown processing is wrapped in the workload of millet straw on handle of a knife 200 and cutter shaft, reduces and restart machine and made Into energy waste.Because the shearing force of grass-smashing reamer is larger, therefore in actual applications, the cutting edge of grass-smashing reamer is less likely to occur to grind The linear of rust is damaged, the service life of grass-smashing reamer is improved, so as to add the reliability of returning mechanism in harvester, and reduces The complete machine load of harvester.It is easy to process because grass-smashing reamer cutting edge is unilateral cutting edge, reduce the processing cost of grass-smashing reamer. What deserves to be explained is the first cutting edge 110 and the second cutting edge 120 also can be to be tilted from the upper surface 130 of cutter hub to lower surface 140 And formed inclined plane or from the inclined plane that upper surface 130 tilts and formed on the lower surface 140 of cutter hub.

In embodiment two, as illustrated in fig. 1 and 2, on the basis of embodiment one, the thickness c of cutter hub is 3-5mm, thickness c For the distance between cutter hub upper surface 130 and lower surface 140 length.The cutter hub while basil (i.e. angle α and angle β) is less than normal Thickness c is also smaller, therefore cutting edge is more thin, and cutting edge is more sharp, further such that when carrying out millet straw chopping, cutting edge is more Easily millet straw is shredded, and chopping result is more preferable, improves the field effect of millet straw.The width b of cutter hub is 40-60mm, width b For the distance length of cutter hub or so.The basil of grass-smashing reamer is smaller, and the thickness c of cutter hub is smaller, and the width b of cutter hub is wider, according to several What principle, therefore the width (i.e. the width a2 of the width a1 of the first cutting edge 110 and the second cutting edge 120) of cutting edge is wider, cutting edge mill It is larger to damage surplus, processing is more convenient, and the service life of grass-smashing reamer is also improved while reducing production cost.Preferably first The width a2 scopes of the width a1 of cutting edge 110 and the second cutting edge 120 are 10-20mm.

In embodiment three, as illustrated in fig. 1 and 2, on the basis of embodiment one or two, the first cutting edge 110 and the second sword Mouth 120 is arranged in parallel, i.e. the first cutting edge 110 is the inclination being formed slopely from the upper surface 130 of cutter hub to lower surface 140 Face, the second cutting edge 120 are the inclined plane being formed slopely from the lower surface 140 of cutter hub to upper surface 130；Or first cutting edge 110 be The inclined plane being formed slopely from the upper surface 130 of cutter hub to lower surface 140, the first cutting edge 110 be from the lower surface 140 of cutter hub to The inclined plane that upper surface 130 is formed slopely, the second cutting edge 120 are what is be formed slopely from the upper surface 130 of cutter hub to lower surface 140 Inclined plane.Certainly, the first cutting edge 110 and the second cutting edge 120 can also be oppositely arranged, i.e. the first cutting edge 110 and the second cutting edge 120 It is that the upper surface 130 of cutter hub tilts the inclined plane formed to lower surface 140；Or it is the lower surface 140 of cutter hub to upper surface 130 tilt the inclined plane formed.And the inclined plane for forming cutting edge is rectilinear structure, arcuate structure or zigzag structure；Certainly The structure for forming inclined plane of the inclined plane of the first cutting edge 110 with forming the second cutting edge 120 may be the same or different.In practical application In, by the way that the cutting edge on cutter shaft to be arranged to different shape designs, improve and the corresponding of different millet straw types is cut, improve The selectivity of grass-smashing reamer, for example during softer millet straw to be shredded, blade can be arranged to zigzag structure；It is and to be shredded During harder millet straw, blade can be arranged to rectilinear structure shape.

In example IV, as illustrated in fig. 1 and 2, it is provided with and is used on the basis of embodiment one, two or three, at handle of a knife 200 The connecting hole 210 being connected with cutter shaft.The setting of connecting hole 210 can make grass-smashing reamer and returning mechanism it is detachable be connected to one Rise, when needing that the grass-smashing reamer on returning mechanism is repaired or replaced, grass-smashing reamer can be removed from returning mechanism, gone forward side by side Row associative operation.

It should be noted that above-described embodiment can independent assortment as needed.Described above is only of the present utility model Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (7)

1. A kind of 1. grass-smashing reamer, it is characterised in that including：

   Cutter hub, the cutter hub include rear end and front end, and the rear end is handle of a knife, and the front end is cutting portion；

   The both sides of the cutting portion are provided with the first cutting edge and the second cutting edge；

   First cutting edge and second cutting edge are to be tilted from a surface of the cutter hub to another surface, form one and tilt Face；

   Shape has angle between the surface of the inclined plane and the cutter hub, and the angle is 10-15 °.
2. 2. grass-smashing reamer according to claim 1, it is characterised in that：

   The thickness range of the cutter hub is 3-5mm.
3. 3. grass-smashing reamer according to claim 1, it is characterised in that：

   The width range of the cutter hub is 40-60mm.
4. 4. grass-smashing reamer according to claim 1, it is characterised in that：

   The width range of the inclined plane is 10-20mm.
5. 5. grass-smashing reamer according to claim 1, it is characterised in that：

   First cutting edge and second cutting edge are arranged in parallel；

   Or；

   First cutting edge is oppositely arranged with second cutting edge.
6. 6. according to the grass-smashing reamer described in claim 1-5 any one, it is characterised in that：

   The inclined plane is in line shape structure, arcuate structure or zigzag structure.
7. 7. according to the grass-smashing reamer described in claim 1-5 any one, it is characterised in that：

   The connecting hole for connecting is provided with the handle of a knife.