CN206380321U - A kind of cutter device - Google Patents

Abstract

The utility model discloses a kind of cutter device, the cutter device includes discoid rotary cutter, leads and cut plate；Lead and cut plate including guide rod plate and arc plate, groove is set on the inside of arc plate；Cutter and the concyclic heart of arc plate, and cutter part edge is in the groove of arc plate；Arc plate end connection guide plate, and guide rod plate and the cambered surface of arc plate are tangent；Cutter border is provided with sawtooth arranged side by side, the high 4mm of sawtooth, a width of 20mm of base；The angle that two sawtooth side relative to each other is formed is 60 °.The utility model cutter device is used to gather in crudefiber crop, can effectively solve boony fibre winding cutter and the flimsy problem of cutter, and waste of flax cut place flat smooth, be highly suitable for the scale harvesting of crudefiber crop.

Description

a cutting device

technical field

The utility model belongs to the field of agricultural mechanical devices, in particular to a cutting device.

Background technique

Jute, kenaf, and hemp belong to bast fiber crops. The fiber obtained after degumming is a natural textile raw material. It is widely used in clothing, carpets, handbags, shoes and hats, bedding, socks, ropes, packaging materials etc.

The harvesting method of hemp is time-consuming and labor-intensive manually. Although there are also mechanical harvesting of hemp crops, due to the bast fiber of the hemp stem, when using a cutting knife with a smooth blade, it is impossible to limit the position of the hemp stem, resulting in cutting slippage, hemp In addition, if hemp crops are planted in areas with complex terrain, raised soil, stones, sundries, etc. on the ground will cause irreparable damage to the cutting blade during the harvesting process.

In fact, if the blade of the cutting knife is replaced with a sawtooth structure, although the problem of fragility and slippage of the blade of the cutting knife is solved, a good harvesting effect cannot be achieved. This is mainly because hemp fibers are easily entangled on the sawtooth. And finally affect the cutting effect of the cutting knife, and even cause it to fail to work normally.

Utility model content

The purpose of the present utility model is to provide a cutting device, aiming at solving the problems existing in the existing cutting knives in the above-mentioned background technology.

The utility model is achieved in this way, a cutting device, the cutting device includes a disc-shaped rotary cutting knife, a cutting guide plate; the cutting guide plate includes a guide rod plate and an arc plate, and the inner side of the arc plate is the groove; among them,

The cutting knife and the circular arc plate have the same center of circle, and the edge of the cutting knife part is facing the groove of the arc plate; cut;

The circumference of the cutting knife is provided with juxtaposed sawtooth, and the sawtooth includes: a base connected to the main body of the cutting knife, a top seat away from the base, and a first cutting surface and a second cutting surface located at two opposite sides of the sawtooth. Surface; the cross-section of the top seat is a triangle, and the apex of the triangle is the intersection point of the first cutting surface and the second cutting surface, and the vertical length of the apex from the bottom edge of the triangle is 4mm; the width of the base is 20mm; The sides opposite to each other of the two saw teeth form an included angle of 60°.

Preferably, the cutting device further includes an intermediate shaft, a hollow support column and a hollow rotating arm; wherein,

The bottom end of the supporting column is fixed on the upper side of the center of the rotating arm, and the interior of the supporting column is connected with the interior of the rotating arm; gear, and the bottom end of the intermediate shaft extends into the rotating arm; the inner wall of the rotating arm is fixed with a main gear, and the end of the rotating arm is provided with a secondary gear; the main gear is engaged with the main gear to drive The rotating arm rotates; the secondary gear is connected with the auxiliary gear through a chain, and the central axis of the auxiliary gear protrudes from the lower side of the end of the rotating arm and is equipped with a cutting knife.

Preferably, the cutting device further includes a hydraulic motor, the hydraulic motor is installed on the top of the support column, and the braking end of the hydraulic motor is connected to the intermediate shaft.

The utility model discloses a cutting device. The cutting device comprises a disc-shaped rotary cutting knife and a cutting guide plate; The circular arc plates have the same center, and the edge of the cutting knife is located in the groove of the circular arc plate; the end of the circular arc plate is connected to the guide rod plate, and the guide rod plate is tangent to the arc surface of the circular arc plate; The sawtooth is 4mm high and 20mm wide at the base; the angle formed by the two opposite sides of the sawtooth is 60°.

Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects: the cutting device of the utility model effectively solves the problem that the hemp stalk fiber is wound around the cutting knife and the cutting knife is easily damaged, and the cutting place of the hemp stalk is smooth, which is very suitable for Large-scale harvesting operations for hemp crops.

Description of drawings

Fig. 1 is the structural representation of the cutting device of the present invention in a top view state;

Fig. 2 is the structural representation of cutting knife in the utility model cutting device;

Fig. 3 is a schematic structural view of part A in Fig. 2 in an enlarged state;

Fig. 4 is a schematic structural view of the cutting device of the present invention in a front view state, and the cutting guide plate is omitted in the figure;

Fig. 5 is a schematic diagram of the internal structure of Fig. 4 in a cross-sectional state;

FIG. 6 is a schematic structural view of part B in FIG. 5 in an enlarged state.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1 to 6, wherein, Fig. 1 is a schematic structural view of the cutting device of the present invention in a top view; Fig. 2 is a schematic structural view of the cutting knife in the cutting device of the present invention; Fig. 3 is a schematic view of part A in Fig. 2 Schematic diagram of the structure under the enlarged state; Fig. 4 is a schematic diagram of the structure of the cutting device of the present invention in a front view state, and the cutting guide plate is omitted in the figure; Fig. 5 is a schematic diagram of the internal structure of Fig. 4 in a cross-sectional state; Fig. 6 is a diagram Schematic diagram of the enlarged structure of part B in 5.

A cutting device, the cutting device includes a disc-shaped rotary cutting knife 1, a cutting guide plate 2; the cutting guide plate 2 includes a guide bar plate 2-1 and an arc plate 2-2, and the arc plate 2 The inner side of -2 is set as a groove; where,

The cutting knife 1 and the arc plate 2-2 have the same center, and the edge of the cutting knife 1 is facing the groove of the arc plate 2-2; the end of the arc plate 2-2 is connected to the guide rod plate 2 -1, and the guide rod plate 2-1 is tangent to the arc surface of the arc plate 2-2;

Said cutting knife 1 is provided with juxtaposed sawtooth 3, and said sawtooth 3 includes: a base connected to the main body of the cutting knife 1, a top seat away from the base, and a first cutting edge located on two opposite sides of the sawtooth 3. Surface 3-1 and second cutting surface 3-2; the section of the top seat is a triangle, and the apex of the triangle is the intersection point of the first cutting surface 3-1 and the second cutting surface 3-1, and the distance between the apex and The vertical length of the base of the triangle is 4 mm; the width of the base is 20 mm; the two sides of the sawtooth opposite each other form an included angle of 60°.

The cutting device of the utility model is especially used for harvesting hemp crops, which include ramie, jute, kenaf, hemp and other crops rich in bast fibers.

In the practical application process of the present utility model, the cutting knife 1 rotates rapidly, and at this moment, the trunk at the bottom of the hemp crop is placed in the feeding port formed between the guide bar plate 2-1 and the cutting knife 1, and the cutting knife 1 is relatively The feeding port rotates in reverse, the sawtooth 3 of the cutting knife 1 tightens the hemp rod in the feeding port, and the feeding port forms a limit and fixation effect on the hemp rod, at this time, the fast-rotating cutting knife 1 cuts the hemp rod , the debris generated after sawing is quickly thrown around the inner groove of the arc plate 2-2.

In the utility model, the focus of avoiding the hemp stalk fiber winding cutting knife 1 lies in the width between the tops of two adjacent sawtooths and the non-pointed structure of the tops. In the utility model, the sawtooth 3 is set in the shape of an equilateral triangle. Therefore, the width between the two adjacent sawtooth tops is 20mm equal to the width of the base of the sawtooth 3, and the non-pointed structure at the top can greatly avoid the problem that the fiber of the hemp stalk crops is entangled with the cutting knife 1. This is mainly manifested in that even if the hemp The rod fiber is not cut off, and during the rapid rotation of the cutting knife 1, the fiber will not be attached to or entangled on the top of the sawtooth 3 or between the two sawtooths. However, if the width is adjusted to other range values, or if the top end is set as a pointed structure, there will be a winding problem, which is far from the effect of the utility model. Correspondingly, in order to achieve the effect of cutting fibers quickly, in the cutting knife 1 of the present invention, the oblique setting of the first cutting surface 3-1 and the second cutting surface 3-2 is similar to the effect of a blade, which is sharper and less hemp. The cut is flat and smooth. In the utility model, due to the specific structure of the cutting knife 1, the problems of easy fiber entanglement and short service life of the existing cutting knife when harvesting hemp stalk crops are successfully solved.

In a further implementation process, in order to make the device of the present invention suitable for mechanized work, in the embodiment of the present invention, the cutting device further includes a middle shaft 4, a support column 5 with a hollow inside, and a rotating arm 6 with a hollow inside; in,

The bottom end of the supporting column 5 is fixed on the upper side of the center of the rotating arm 6, and the inside of the supporting column 5 is connected to the inside of the rotating arm 6; A main gear 7 and an auxiliary gear 8 are provided at the end, and the bottom end of the intermediate shaft 4 extends into the rotating arm 6; the inner wall of the rotating arm 6 is fixed with a main gear 9, and the end of the rotating arm 6 is provided with a secondary The secondary gear 10; the main gear 7 meshes with the main secondary gear 9 to drive the rotating arm 6 to rotate; the secondary gear 8 is connected to the secondary secondary gear 10 through a chain, and the central axis of the secondary secondary gear 10 is lowered from the end of the rotary arm 6 The side protrudes and installs the cutting knife 1.

In an embodiment of the present utility model, more specifically, the cutting device further includes a hydraulic motor, the hydraulic motor is installed on the top of the support column 5 , and the braking end of the hydraulic motor is connected to the top of the intermediate shaft 4 .

In the actual application process of the utility model, the hydraulic motor drives the intermediate shaft 4 to rotate, the main gear 7 at the bottom of the intermediate shaft 4 drives the main gear 9, and drives the rotating arm 6 to rotate, and the secondary gear 8 drives the secondary gear 10, and drives The cutting knife 1 rotates. Wherein, the rotating arm 6 rotates clockwise, while the cutting knife 1 rotates counterclockwise. When the cutting device moves forward, the cutting knife 1 completes the harvesting operation of the flakes of hemp stalk crops. Due to the drive of the hydraulic motor and the setting of the built-in support column 5 in the intermediate shaft 4, the problem of the entanglement of hemp sticks that is easy to occur in the existing chain transmission method is effectively avoided.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1. A cutting device, characterized in that, the cutting device comprises a disc-shaped rotary cutting knife and a cutting guide plate; the cutting guide plate comprises a guide bar plate and an arc plate, and the inside of the arc plate is set as a concave slot; among them, The cutting knife and the circular arc plate have the same center of circle, and the edge of the cutting knife part is facing the groove of the arc plate; cut; The circumference of the cutting knife is provided with juxtaposed sawtooth, and the sawtooth includes: a base connected to the main body of the cutting knife, a top seat away from the base, and a first cutting surface and a second cutting surface located at two opposite sides of the sawtooth. Surface; the cross-section of the top seat is a triangle, and the apex of the triangle is the intersection point of the first cutting surface and the second cutting surface, and the vertical length of the apex from the bottom edge of the triangle is 4mm; the width of the base is 20mm; The sides opposite to each other of the two saw teeth form an included angle of 60°. 2. The cutting device according to claim 1, characterized in that, the cutting device further comprises an intermediate shaft, a hollow support column and a rotating arm with a hollow interior; wherein, The bottom end of the supporting column is fixed on the upper side of the center of the rotating arm, and the interior of the supporting column is connected with the interior of the rotating arm; gear, and the bottom end of the intermediate shaft extends into the rotating arm; the inner wall of the rotating arm is fixed with a main gear, and the end of the rotating arm is provided with a secondary gear; the main gear is engaged with the main gear to drive The rotating arm rotates; the secondary gear is connected with the auxiliary gear through a chain, and the central axis of the auxiliary gear protrudes from the lower side of the end of the rotating arm and is equipped with a cutting knife. 3. The cutting device according to claim 2, characterized in that, the cutting device further comprises a hydraulic motor, the hydraulic motor is installed on the top of the support column, and the braking end of the hydraulic motor is connected to the intermediate shaft.