CN109005689B

CN109005689B - Land leveler

Info

Publication number: CN109005689B
Application number: CN201810752157.8A
Authority: CN
Inventors: 徐剑敏
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2018-07-10
Filing date: 2018-07-10
Publication date: 2020-08-18
Anticipated expiration: 2038-07-10
Also published as: CN109005689A

Abstract

The invention discloses a land leveler, comprising: frame and driver's cabin, be equipped with support arm and regulating arm on the frame front end, support arm one end is articulated with the frame, and the support arm middle part is passed through hydraulic stem and connected to the frame, and the other end is connected with the scraper bowl, wherein, the bottom front end of scraper bowl has horizontal shovel portion, be provided with a plurality of fixed plate in the horizontal shovel portion, be equipped with the forming relieved tooth on the fixed plate, the forming relieved tooth includes preceding forming relieved tooth and a pair of side forming relieved tooth, preceding forming relieved tooth sets up on the outer terminal surface of fixed plate, a pair of side forming relieved tooth sets up respectively the both sides of fixed plate, the bottom surface of side forming relieved tooth with the bottom surface of preceding forming relieved tooth all can keep level with ground. Due to the adoption of the structure, the leveling effect of the leveling device is good.

Description

Land leveler

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a land leveler.

Background

Agricultural operation needs to carry out the leveling to the soil to the operation of ploughing is more favorable to farmland irrigation.

Chinese patent CN201320022505.9 discloses a land leveler, including frame and driver's cabin, be equipped with support arm and regulating arm on the frame front end, support arm one end is articulated with the frame, and the support arm middle part is passed through hydraulic stem and connected to the frame, and the other end is connected with the scraper bowl, hydraulic stem and connected to the frame are passed through to the one end of regulating arm, and the regulating arm middle part is articulated with the frame, and the other end is connected with the scraper bowl.

The grader provided by the above patent document has a certain problem in the structure of the bucket, and can not crush the large clods on the land and can not level the land effectively, so that a technician is urgently needed to improve the structure.

Disclosure of Invention

In view of this, the invention provides a grader with good leveling effect.

In order to achieve the purpose, the invention provides the following technical scheme:

a grader, comprising: frame and driver's cabin, be equipped with support arm and regulating arm on the frame front end, support arm one end is articulated with the frame, and the support arm middle part is passed through hydraulic stem and connected to the frame, and the other end is connected with the scraper bowl, wherein, the bottom front end of scraper bowl has horizontal shovel portion, be provided with a plurality of fixed plate in the horizontal shovel portion, be equipped with the forming relieved tooth on the fixed plate, the forming relieved tooth includes:

the front relieving teeth are arranged on the outer end face of the fixed plate;

the pair of side relieving teeth are respectively arranged on two sides of the fixed plate, and the bottom surfaces of the side relieving teeth and the bottom surface of the front relieving tooth can be leveled with the ground.

Furthermore, the front relieved tooth is a triangular frustum pyramid, the flat side surface of the front relieved tooth is perpendicular to the two bottom surfaces of the front relieved tooth, the flat side surface is connected with the outer end surface of the fixed plate, and a blade part is formed between the two inclined side surfaces of the front relieved tooth.

Further, the side forming relieved tooth includes continuous fixed part and extension, the fixed part is fixed on the side of fixed plate, the free end of extension extends to the side forming relieved tooth on another forming relieved tooth, the inboard of extension is equipped with a plurality of dogtooths, forms first tooth's socket between the adjacent dogtooth, forms the second tooth's socket between dogtooth and the fixed part.

Furthermore, the convex tooth is provided with a shovel blade, the upper end face of the shovel blade is provided with an upper concave arc face, the upper concave arc face is in transition connection with the outer side face of the convex tooth through an inclined blade face, the lower end face of the shovel blade is provided with a convex arc face and a lower concave arc face, one end of the lower concave arc face is connected with the convex arc face, and the other end of the lower concave arc face is connected with the inner side face of the convex tooth.

Furthermore, a front edge surface is arranged on the side surface of the shovel edge, the front edge surface is connected with the convex arc surface, and an edge top is formed between the front edge surface and the upper concave arc surface.

Further, the fixed plate comprises a fixed portion and a connecting portion, the fixed portion is fixed to the horizontal shovel portion, the front shovel tooth is arranged on the lower portion of the outer end face of the connecting portion, and the side shovel tooth is arranged on the lower portion of the corresponding side face of the connecting portion.

Furthermore, the angle of the edge inclination angle of the upper concave cambered surface is 15-20 degrees.

Further, the angle of the first relief angle of the leading edge surface is 1.5 ° to 2 °.

Further, the angle of the secondary relief angle of the leading edge facet is 40 ° to 45 °.

The technical scheme can show that the invention has the advantages that:

1. be provided with a plurality of fixed plate on the horizontal shovel portion of scraper bowl the front shovel tooth of installation on the outer terminal surface of fixed plate has further improved the soil cutting ability of leveler when the level land operation, in addition, front shovel tooth is a triangular terrace, the structural design of this triangular terrace, the front shovel tooth of being convenient for cuts in the soil in front smoothly for harder soil caking is cut, in order under the same thrust effect, obtain higher operating efficiency and soil cutting ability, set up the cutting part that forms an slope between two oblique sides of front shovel tooth, resistance when this cutting part has reduced the soil cutting, do benefit to front shovel tooth and cut soil block and caking smoothly, two oblique sides make the cutting plane of soil block more smooth when sliding along the oblique side, be difficult for gluing on the oblique side.

2. A pair of side shovel tooth sets up the both sides at the fixed plate respectively, the relative preceding forming relieved tooth of side shovel tooth, both sides to this preceding forming relieved tooth are the arc and outwards extend, extend forward simultaneously, can be under the dual function of side shovel tooth and preceding forming relieved tooth like this, cut soil block and caking, a plurality of edges are the arc, separate the setting, make soil block and caking by progressive cutting, when the bottom front end of relative scraper bowl cuts, the resistance of cutting has been reduced, the progressive cutting of a plurality of edges, make under the same thrust, obtain higher operating efficiency and soil cutting ability, and then make the side shovel tooth insert the soil block more easily, the cutting of the soil block of being convenient for, make land leveling speed accelerate.

3. Form first tooth's socket between the adjacent dogtooth, the formation of first tooth's socket is favorable to the cutting plane of soil block and the flash relief face's of dogtooth quick separation, reduces the cutting resistance between the cutting plane of soil block and the dogtooth face, can obtain the quick cutting ability, and in addition, the outside of extension is the arc setting for when breaking away from the upper surface of extension, the easy fracture that produces of cutting plane of soil block does benefit to the breakage of soil block.

4. Be equipped with the concave arc face on the up end of shovel sword, go up through oblique cutting surface transitional coupling between the lateral surface of concave arc face and dogtooth, go up the setting of concave arc face and oblique cutting surface, the cutting plane that does benefit to the clod moves backward, reduce the friction between the up end of cutting plane and shovel sword, reduce the cutting resistance, the setting of convex arc face does benefit to fracture between cutting plane and the ground, reduce the cutting resistance, the setting of concave cambered surface, reduce the lower terminal surface of shovel sword and level the resistance between the ground.

5. The angle of the edge inclination angle a of the upper concave cambered surface is 15-20 degrees, the backward movement of the cutting surface of the soil block is facilitated, the strength of the shoveling edge is enhanced, the angle of the first back angle b of the front edge surface is 1.5-2 degrees, the shoveling edge is sharper, the angle of the second back angle c of the front edge surface is 40-45 degrees, smooth cutting is facilitated, the cutting efficiency is improved, and the ground can rapidly obtain better flatness.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:

fig. 1 is a schematic structural view of a bucket of the present invention.

FIG. 2 is a partial top view of the horizontal scoop and tooth of the present invention.

Fig. 3 is a sectional view taken along a-a of fig. 2.

FIG. 4 is a top view of the front tooth of the present invention.

FIG. 5 is a schematic view of the side relieved tooth of the present invention.

Fig. 6 is a sectional view taken along line B-B of fig. 5.

Labeled as: the cutting tool comprises a bucket 1, a horizontal shovel part 11, a shovel tooth 2, a front shovel tooth 21, a flat side surface 211, a slant side surface 212, a blade part 213, a side shovel tooth 22, a fixing part 221, an extending part 222, a convex tooth 223, a slant blade surface 2231, a shovel blade 224, a blade top 2241, an upper concave arc surface 2242, a front blade surface 2243, a convex arc surface 2244, a lower concave arc surface 2245, a first tooth groove 225, a second tooth groove 226, a fixing plate 3, a fixing part 31, a connecting part 32, a blade inclination angle a, a first relief angle b and a second relief angle c.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-6, a grader as in fig. 1 includes: frame and driver's cabin, be equipped with support arm and regulating arm on the frame front end, support arm one end is articulated with the frame, and the support arm middle part is passed through hydraulic stem and connected to the frame, and the other end is connected with scraper bowl 1, as shown in fig. 1, fig. 2 and fig. 3, the bottom front end of scraper bowl 1 has horizontal shovel portion 11, be provided with a plurality of fixed plate 3 on the horizontal shovel portion 11, be equipped with forming relieved tooth 2 on the fixed plate 3, forming relieved tooth 2 includes: preceding forming relieved tooth 21 and a pair of side forming relieved tooth 22, preceding forming relieved tooth 21 sets up on the outer terminal surface of fixed plate 3, preceding forming relieved tooth 21's setting has further improved the soil cutting ability of grader when the level land operation, and a pair of side forming relieved tooth 22 sets up respectively the both sides of fixed plate 3, the bottom surface of side forming relieved tooth 22 with the bottom surface of preceding forming relieved tooth 21 all can keep level with ground, and a plurality of side forming relieved tooth 22 are the arc, separate the setting for soil block and caking are by progressive cutting, when cutting the bottom front end of relative scraper bowl 1, have reduced the resistance of cutting, under side forming relieved tooth 22 and preceding forming relieved tooth 21's dual function, cut soil block and caking.

As shown in fig. 3, the fixing plate 3 includes a fixing portion 31 and a connecting portion 32, the fixing portion 31 is fixed to the horizontal shovel portion 11, the front tooth 21 is disposed at a lower portion of an outer end surface of the connecting portion 32, and the side tooth 22 is disposed at a lower portion of a corresponding side surface of the connecting portion 32.

As shown in fig. 4, the front tooth 21 is a triangular frustum, the flat side surface 211 of the front tooth 21 is perpendicular to the two bottom surfaces of the front tooth 21, the flat side surface 211 is connected to the outer end surface of the fixing plate 3, and a blade portion 213 is formed between the two inclined side surfaces 212 of the front tooth 21, the triangular frustum is designed to facilitate the front tooth 21 to smoothly cut into the front land, so that harder soil lumps are cut, in order to obtain higher work efficiency and soil cutting capability under the same thrust, the blade portion 213 reduces resistance during soil cutting, and facilitates the front tooth 21 to smoothly cut into soil lumps and lumps, and the two inclined side surfaces 212 make the cutting surface of the soil lumps more smooth when sliding along the inclined side surfaces 212, and are not easily adhered to the inclined side surfaces 212.

As shown in fig. 5, the side tine 22 includes a fixing portion 221 and an extending portion 222, the fixing portion 221 is fixed on a side surface of the fixing plate 3, a free end of the extending portion 222 extends toward the side tine 22 on the other tine 2, an outer side of the extending portion 222 is arranged in an arc shape, so that when a cutting surface of a soil block is separated from an upper surface of the extending portion 222, the cutting surface is easily broken, and the soil block is conveniently broken, the inner side of the extending portion 222 is provided with a plurality of tines 223, and the plurality of tines 223 progressively cut, so that under the same thrust, higher work efficiency and soil cutting capability are obtained, the progressive cutting reduces the binding capability of the soil block, and further the side tine 22 is more easily inserted into the soil block, so that the cutting of the soil block is facilitated, the soil leveling speed is increased, and the plurality of tines 223 are arranged, so as to facilitate cutting off residual straw in animal manure.

As shown in fig. 5, a first tooth groove 225 is formed between adjacent convex teeth 223, a second tooth groove 226 is formed between the convex teeth 223 and the fixing part 221, and the formation of the first tooth groove 225 is beneficial to the quick separation of the cutting surface of the soil block and the convex teeth 223, reduces the cutting resistance between the cutting surface of the soil block and the convex teeth 223, and can obtain the quick cutting capability.

As shown in fig. 6, be equipped with shovel blade 224 on the convex tooth 223, be equipped with concave cambered surface 2242 on the up end of shovel blade 224, go up concave cambered surface 2242 with through sloping blade surface 2231 transitional coupling between the lateral surface of convex tooth 223, go up concave cambered surface 2242 and sloping blade surface 2231's setting, do benefit to the cutting plane backward movement of clod, reduce the friction between the cutting plane and the up end of shovel blade 224, reduce the cutting resistance, be equipped with convex cambered surface 2244 and concave cambered surface 2245 on the lower terminal surface of shovel blade 224, concave cambered surface 2245's one end with convex cambered surface 2244 links to each other, concave cambered surface 2245's the other end with convex tooth 223's medial surface links to each other, convex cambered surface 2244's setting does benefit to the fracture between cutting plane and the ground, reduces the cutting resistance, concave cambered surface 2245's setting has reduced the lower terminal surface of shovel blade 224 and has leveled the resistance between the ground.

A front edge surface 2243 is arranged on the side surface of the shovel edge 224, the front edge surface 2243 is connected with the convex arc surface 2244, and an edge top 2241 is formed between the front edge surface 2243 and the upper concave arc surface 2242.

Preferably, the angle of the blade inclination angle a of the upper concave arc surface 2242 is 15-20 degrees, which is beneficial to backward movement of the cutting surface of the soil block and enhances the strength of the shovel blade 224.

As shown in fig. 6, in this embodiment, the angle of the blade inclination angle a of the concave arc surface 2242 is 16 °, and the strength of the cutting blade 224 is the highest.

Preferably, the angle of the first relief angle b of the front edge surface 2243 is 1.5 ° to 2 °, so that the cutting edge 224 is sharper.

As shown in fig. 6, in this embodiment, the angle of first relief angle b of front blade surface 2243 is 1.75 °, and cutting edge 224 is sharpest.

Preferably, the angle of the second back angle c of the front blade surface 2243 is 40-45 degrees, so that smooth cutting is facilitated, the cutting efficiency is improved, and the ground can rapidly obtain better flatness.

As shown in fig. 6, in this embodiment, the angle of the second relief angle c of the front blade surface 2243 is 44 °, and the ground surface has the highest flatness.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grader, comprising: frame and driver's cabin, be equipped with support arm and regulating arm on the frame front end, support arm one end is articulated with the frame, and the support arm middle part is passed through hydraulic stem and connected to the frame, and the other end is connected with scraper bowl (1), its characterized in that, the bottom front end of scraper bowl (1) has horizontal shovel portion (11), be provided with a plurality of fixed plate (3) on horizontal shovel portion (11), be equipped with forming relieved tooth (2) on fixed plate (3), forming relieved tooth (2) include:

the front relieving teeth (21) are arranged on the outer end face of the fixing plate (3);

the side shovel teeth (22) are arranged on two sides of the fixing plate (3) respectively, the bottom surfaces of the side shovel teeth (22) and the front shovel teeth (21) are both leveled with the ground, each side shovel tooth (22) comprises a fixing portion (221) and an extending portion (222) which are connected, each fixing portion (221) is fixed to the side face of the fixing plate (3), the suspended end of each extending portion (222) extends towards the corresponding side shovel tooth (22) on the other shovel tooth (2), a plurality of protruding teeth (223) are arranged on the inner side of each extending portion (222), a first tooth groove (225) is formed between every two adjacent protruding teeth (223), and a second tooth groove (226) is formed between each protruding tooth (223) and the fixing portion (221).

2. The grader according to claim 1, wherein the front blade (21) is a triangular prism, the flat side surface (211) of the front blade (21) is perpendicular to the two bottom surfaces of the front blade (21), the flat side surface (211) is connected to the outer end surface of the fixing plate (3), and a blade (213) is formed between the two inclined side surfaces (212) of the front blade (21).

3. The land leveler of claim 1, wherein a shovel blade (224) is arranged on the convex tooth (223), an upper concave arc surface (2242) is arranged on the upper end surface of the shovel blade (224), the upper concave arc surface (2242) is in transitional connection with the outer side surface of the convex tooth (223) through an inclined blade surface (2231), a convex arc surface (2244) and a concave arc surface (2245) are arranged on the lower end surface of the shovel blade (224), one end of the concave arc surface (2245) is connected with the convex arc surface (2244), and the other end of the concave arc surface (2245) is connected with the inner side surface of the convex tooth (223).

4. A grader according to claim 3 wherein said blade (224) is flanked by a front edge face (2243), said front edge face (2243) being connected to said convex arc face (2244), said front edge face (2243) forming a cutting edge tip (2241) with said concave arc face (2242).

5. The grader according to claim 1, wherein the fixing plate (3) includes a fixing portion (31) and a connecting portion (32), the fixing portion (31) is fixed to the horizontal blade portion (11), the front blade (21) is provided at a lower portion of an outer end surface of the connecting portion (32), and the side blade (22) is provided at a lower portion of a corresponding side surface of the connecting portion (32).

6. A grader according to claim 3 wherein the angle of the blade inclination (a) of the upwardly concave cambered surface (2242) is 15 ° to 20 °.

7. A grader according to claim 4 wherein the angle of the first relief angle (b) of the front facet (2243) is 1.5 ° to 2 °.

8. A grader according to claim 4 wherein the angle of the secondary relief angle (c) of the front blade face (2243) is 40 ° to 45 °.