CN201278635Y - Active circular knife type zero-tillage anti-blocking unit - Google Patents

Abstract

The utility model discloses an active disc-knife-type no-tillage blocking-prevention unit which is applied to an no-tillage sowing machine, belonging to the technical field of the agricultural machine. The technical proposal of the unit comprises a stander (4), a colterboot assembly (1) connected with the stander (4), a disc-knife assembly (2) and a parallel four-bar linkage (3). The utility model is characterized in that the disc-knife assembly (2) is provided with an active disc knife (5) which rotates along the reverse direction with high speed and is embedded between the colterboot assemblies (1). The utility model is capable of effectively cutting off straw and stubble, thus preventing the colterboot from blocking; the utility model is suitable for the operation in different areas, and has the advantages of raw material saving and low cost, and facilitates the further popularization of the conservation tillage.

Description

An active disc knife type no-tillage anti-blocking unit body

technical field

The utility model relates to an active disc knife type no-tillage anti-blocking unit body applied to a seeder, which belongs to the technical field of agricultural machinery.

technical background

Conservation tillage technology is an agricultural revolution combining agricultural machinery and agronomy. It has been demonstrated and applied in 10 provinces including Shanxi, Hebei, and Inner Mongolia. Practice has proved that conservation tillage has significant economic, social and ecological benefits such as preserving moisture, increasing soil fertility, reducing water and wind erosion, suppressing sandstorms, reducing operating procedures, reducing operating costs, and increasing farmers' income. Corn no-tillage planters have basically matured in China, while wheat no-tillage planters, especially in areas with two crops a year, sow wheat before the stubble is corn, and it has been a lot of problems to solve the problem of large amount of straw, anti-blocking, breaking stubble into the soil, etc. The problem that scholars concentrate on researching. It can be seen that the core of the implementation and application of conservation tillage technology in the double-cropping area is the wheat no-tillage planter, and the anti-blocking of the wheat no-tillage planter and the cutting of corn stalks are its key technologies.

At present, the research on anti-blocking technology of no-tillage seeding equipment at home and abroad mainly focuses on passive anti-blocking devices and power-driven anti-blocking devices. Although various passive anti-blocking devices are simple in structure and low in cost, they have poor adaptability to the amount of straw coverage, and it is still difficult to solve the problem of blockage when the amount of straw coverage is large. For example, the shovel-type stubble breaker is only suitable for sowing hard stubble in wheat fields; the double-disc stubble cutter has poor grass cutting effect, and long straws are easy to hang on the stubble breaker and ripper, causing blockage. Large or crushed straw land operations. The active anti-blocking devices currently researched generally use high-speed rotating knife or hammer claw cutters, which have poor stability, high power consumption, high speed, and some even higher speeds. Due to high-speed rotation, safety and security during operation The problem of dust is becoming more and more prominent.

Contents of the invention

The purpose of this utility model is to provide an active disc knife type no-tillage anti-blocking unit body. The no-tillage seeder configured with this unit body cuts off straw and root stubble through the active disc knife, thereby preventing the ditch opener from being blocked; Opens up topsoil, thereby reducing the amount of soil broken for opener no-till operations.

The technical scheme adopted in order to achieve this purpose includes: frame 4, opener assembly 1 connected with frame 4, disc cutter assembly 2 and parallel four-bar mechanism 3, it is characterized in that, described The disc cutter assembly 2 has a reverse active disc cutter 5 rotating at high speed.

In the above-mentioned active disc knife type no-tillage anti-blocking unit body, the disc knife 5 is embedded between the opener assemblies 1 .

In the above-mentioned active disc knife type no-tillage anti-blocking unit body, the parallel four-bar mechanism 3 includes the connecting rod 9 connecting the disc knife 5, the fixing bolt 10 fixing the connecting rod 9, the long bolt 11, and the Compression spring 12 and adjusting nut 13 on it. According to the situation of the working surface of the disc cutter 5, the disc cutter 5 can float up and down around the fixing bolt 10, and the size of the compression spring 12 is determined by the adjusting nut 10, so that the gap between the disc cutter 5 and the ground can be adjusted.

In the above-mentioned active disc knife type no-tillage anti-blocking unit body, the opener assembly 1 includes a left ditching tip 15 and a right ditching tip 18, which are fixed to the ditching opener by small bolts 16. Seat 17. In order to facilitate the adjustment of the gap between the left ditch tip 15, the right ditch tip 18 and the disc cutter 5, a chute 14 is provided on the ditching seat 17, so as to realize the gap between the disc cutter 5 and the ditching tip. Adjustable clearance.

In the above-mentioned active disc knife type no-tillage anti-blocking unit body, the disc knife assembly 2 includes a square shaft 6, a disc knife 5 installed on the square shaft 6, a bearing 7 and a bearing seat 8, and the power passes through The square shaft 6 is input to realize the continuous reverse high-speed rotation of the disc cutter.

The utility model has the following advantages:

1. The disc knife is embedded between the left and right ditching blade tips of the ditching opener, thus effectively preventing ditching from clogging.

2. The parallel four-bar mechanism can not only control the ground clearance of the disc cutter, but also can effectively increase the penetration of the disc cutter by adjusting the compression spring.

3. The shovel tip of the opener adopts a left and right combined sliding type, which is not only conducive to positioning with the disc cutter, but also facilitates replacement.

4. Power-driven anti-blocking is adopted, and the anti-blocking effect is more obvious by adjusting the speed.

5. The square shafts between the unit bodies are connected by couplings, which can realize the adjustable sowing row spacing and are suitable for operations in different regions.

6. Saving raw materials and reducing costs; it is beneficial to promote the further promotion of conservation tillage.

Description of drawings

Fig. 1 is a front view of an active disc knife type no-tillage anti-blocking unit body of the present invention;

Fig. 2 is A-A sectional view of Fig. 1;

Fig. 3 is a left view of an active disc knife type no-tillage anti-blocking unit body of the utility model;

Fig. 4 is the partial enlarged view of I among Fig. 1;

FIG. 5 is a partially enlarged view of II in FIG. 3 .

In the figure: 1. Ditch opener assembly, 2. Disc cutter assembly, 3. Parallel four-bar mechanism, 4. Rack, 5. Disc cutter, 6. Square shaft, 7. Bearing, 8. Bearing seat , 9, connecting rod, 10, fixing bolt, 11 long bolt, 12, compression spring, 13, adjusting nut, 14, chute, 15, left ditching tip, 16, small bolt, 17, opener seat, 18. Right ditching shovel tip.

Detailed ways

The concrete structure of the present utility model is described below in conjunction with accompanying drawing:

As shown in Figure 1, Figure 2, and Figure 3, the active disc knife type no-tillage anti-blocking unit is mainly composed of a ditch opener assembly 1, a disc knife assembly 2, a parallel four-bar mechanism 3, and a frame 4. . The disc cutter assembly is mainly composed of disc cutter 5, square shaft 6, bearing 7, bearing seat 8, etc.; the parallel four-bar mechanism is mainly composed of connecting rod 9, fixing bolt 10, long bolt 11, compression spring 12, adjusting nut 13 and so on.

Among them, the disc cutter 5, the bearing 7, the bearing seat 8, etc. in the disc cutter assembly 2 are assembled on the power input square shaft 6;

By adjusting the adjusting nut 13 of the parallel four-bar mechanism 3, the length of the compression spring 12 is changed, so that the gap between the disc knife 5 and the ground can be adjusted.

Fig. 4 and Fig. 5 show the structure schematic diagram of the ditch opener assembly 1 of the active disc knife type no-tillage anti-blocking unit body. Ditching shovel tip 18, small bolt 16 and ditch opener seat 17, etc.;

Wherein the left ditching shovel tip 15 and the right ditching shovel tip 18 in the opener assembly 1 are fixed on the opener seat 17 by small bolts 16;

Wherein the opener seat in the opener assembly 1 is provided with a chute 14, and the left ditching blade tip 15 and the right ditching blade tip 18 can slide left and right in the chute 14 and be fixed.

During operation, the power is transmitted to the gearbox through the universal joint, and the power is transmitted to the square shaft through a pair of large sprockets on the side of the gearbox. Effectively remove the choked soil, broken straw and weeds on the front side of the opener when opening the ditch, and play a role in preventing blockage.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modification or equivalent replacement of the technical solutions without departing from the spirit and scope of the technical solutions of the present utility model, all of which shall be covered by the scope of the claims of the present utility model.

Claims (5)

1. An active disc cutter type no-tillage anti-blocking unit body, comprising a frame (4), a ditch opener assembly (1) connected to the frame (4), a disc cutter assembly (2) and The parallel four-bar mechanism (3) is characterized in that the disc cutter assembly (2) has an active disc cutter (5) that rotates in the opposite direction at high speed. 2. The active disc knife type no-tillage anti-blocking unit according to claim 1, characterized in that the disc knife (5) is embedded between the opener assembly (1). 3. The active disc knife type no-tillage anti-blocking unit body according to claim 1, characterized in that the parallel four-bar mechanism (3) includes a connecting rod (9) connected to the disc knife (5), The fixing bolt (10) of fixing connecting rod (9), the long bolt (11), the compression spring (12) and the adjustment nut (13) that are enclosed within on the long bolt (11). 4. The active disc knife type no-tillage anti-blocking unit according to claim 1, 2 or 3, characterized in that, the opener assembly (1) includes a left ditching blade tip (15), Right ditch opener shovel tip (18), they are fixed on the ditch opener seat (17) by small bolt (16); The ditch opener seat (17) is provided with chute (14). 5. The active disc knife type no-tillage anti-blocking unit according to claim 4, characterized in that, the disc knife assembly (2) includes a square shaft (6), which is installed on the square shaft (6) Disc cutter (5), bearing (7) and bearing seat (8) on the top, power is input by square shaft (6).

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