CN201911018U - Combined disc type no-tillage anti-blocking device - Google Patents

Abstract

The utility model discloses a combined disc type no-tillage anti-blocking device, which belongs to the technical field of agricultural machinery. The device adopts the combined anti-blocking of passive disc, toggle knife and active disc knife. The active disc knife and toggle knife are installed in the middle of the ditching shovel handle, and the left passive disc and active disc are arranged in front of the opener. Right passive disc. During operation, the left passive disc and the right passive disc cut or poke the straw on both sides in front of the opener, and the knife swings up and down on the ground surface, so that the ground surface is not cut off by the left passive disc and the right passive disc Or the stalks that are pulled apart are stirred up, and the active disc knife rotating at high speed cuts the stalks, which plays the role of preventing blockage. The utility model has strong anti-blocking ability, small amount of soil disturbance and low power consumption, and the matching use with the no-tillage seeder is beneficial to the further popularization of the protective tillage technology in the northern regions of our country. The utility model is suitable for wheat and corn no-tillage seeders.

Description

A combined disc type no-tillage anti-blocking device

technical field

The utility model belongs to the technical field of agricultural machinery, in particular to a combined disc type no-tillage anti-blocking device.

Background technique

Conservation tillage is an advanced agricultural farming technology that implements no-tillage and less-tillage on farmland, covers the surface with crop straw, reduces wind erosion and water erosion, and improves soil fertility and drought resistance. At present, my country's no-tillage planters are far from meeting the actual production needs of popularizing conservation tillage technology in terms of industrial scale, variety, and quality. For row sowing, the row spacing is about 15-20cm. The upper crop for sowing wheat in twice-cropped areas is generally corn, and the amount of corn stalks is large, which is very easy to cause blockage.

At present, no-tillage seeders are generally equipped with various anti-blocking devices before the openers, mainly including passive anti-blocking devices and power-driven anti-blocking devices.

Patent No. 98218325.9 "Gear-tooth anti-blocking device for no-tillage mulching seeder", the two weeding discs of the device move together with the tool, and the straw on both sides of the grain divider is pushed back to remove the straw blockage. The device is simple in structure, low in manufacturing cost, and has good anti-blocking effect under certain conditions, but its anti-blocking effect is not ideal when the surface coverage is large, especially when the straw is wet or not crushed Wheat straw is easy to entangle and block the opener, affecting the passability of the seeder.

Patent No. 98218324.0 "Band-shaped crushing and anti-blocking device for no-tillage seeder", this device uses the principle of crushing knife to clear the way and directional weeding, and completes the seeding while cutting the straw, which solves the problem of direct sowing under the condition of high straw coverage in the wheat field The problem that the planter is often blocked when corn. However, the speed is as high as 1800 rpm, and the power consumption is large. Due to the high speed, the vibration of the machine tool is caused, the safety performance is poor, and the dust problem caused by the high speed during the operation is also very prominent.

Utility model content

The purpose of this utility model is to overcome the problems in the prior art that the passive anti-blocking effect is poor, the power-driven anti-blocking soil disturbance is large, and the power consumption is large. Combined anti-blocking with the active disc knife to provide a combined disc-type no-tillage anti-blocking device, which is characterized in that the ditching shovel handle 7 is a convex structure, and the middle part of the ditching shovel handle is convex to the right section, the ditch opener 1 is fixed on the front plane of the lower end of the ditching handle 7, in the middle of the convex section of the ditching handle 7, the power shaft 6 is perpendicular to the convex surface of the ditching handle 7 and the ditching The shovel handle 7 is rotationally connected, the pulley 8 is fixedly connected to the power shaft 6 on the right side of the ditching shovel handle 7, the active disc cutter 5 is fixedly connected to the power shaft 6 on the left side of the ditching shovel handle 7, and the eccentric wheel 12 The left side of the active disc cutter 5 is fixed on the power shaft 6, and the short arm end of the fork-shaped toggle knife 3 is on the right side of the active disc cutter 5 and is connected to the ditching shovel handle 7 below the power shaft 6. Hingedly connected, the long arm end of the fork-shaped toggle knife 3 is hinged with one end of the connecting rod 9 on the left side of the active disc cutter 5, and the other end of the connecting rod 9 is hinged with the eccentric wheel 12, and the eccentric wheel 12, the connecting rod 9 and the The toggle knife 3 constitutes a crank connecting rod movement mechanism. When the eccentric wheel 12 rotates, the toggle knife 3 swings up and down. The active disc knife 5, the centerline of the toggle knife 3 and the centerline of the ditch opener 1 are in the same plane. The support frame 11 of π shape is affixed on the ditching shovel handle 7 below the active disc cutter 5, and the two arms of the support frame 11 are forward and downwardly inclined, and the left arm and the right arm of the support frame 11 are connected with the active disc cutter. The plane where 5 is located is left-right symmetrical, and the left passive disc 2 and the right passive disc 4 are left-right symmetrical on both sides in front of the opener 1, respectively connected with the left arm and the right arm of the support frame 11 by pin shafts, and the left passive disc 2 and the front space of the right passive disc 4 is smaller than the back space, the angle between the two is 50°～60°, the front space is not less than 100mm, and the fertilizer pipe 10 is fixedly connected to the ditch behind the ditch opener 1. On the lower end rear plane of shovel handle 7.

The active disc cutter 5 is notched, and the number of notched teeth is 30-40, which are evenly distributed on the circumference of the disc cutter.

The knife body of described toggle knife 3 is sharp angle type, and the angle of sharp angle is 10 °～15 °.

Both the left passive disc 2 and the right passive disc 4 are spherical, and their convex surfaces are placed on the support frame 11 opposite to each other.

The beneficial effect of the utility model is that the combined operation of the passive disc, the active disc knife and the dial knife is adopted; Then use the active disc knife to cut, the soil disturbance is small, and the power consumption is low. Therefore the supporting use of the utility model and the no-tillage planter is conducive to the further popularization of the conservation tillage technology in the northern regions of our country.

Description of drawings

Fig. 1 is the front view of the combined disc type no-tillage anti-blocking device;

Fig. 2 is the top view of the combined disc type no-tillage anti-blocking device;

Fig. 3 is a left view of the combined disc type no-tillage anti-blocking device;

Figure 4 is a schematic diagram of the toggle knife.

In the figure, 1 is the ditch opener, 2 is the left passive disc, 3 is the toggle knife, 4 is the right passive disc, 5 is the active disc knife, 6 is the power shaft, 7 is the ditching shovel handle, 8 is the Belt wheel, 9 is connecting rod, and 10 is fat pipe, and 11 is bracing frame, and 12 is eccentric wheel.

Detailed ways

Below in conjunction with accompanying drawing and embodiment concrete structure of the utility model and working process are further described.

Figure 1, Figure 2 and Figure 3 are the front view, top view and left view of the combined disc-type no-tillage anti-blocking device of the embodiment, respectively. As shown in FIG. 3 , the ditching shovel handle 7 is a convex structure. The middle part of the ditching shovel handle is a rightward convex section, and the opener 1 is fixedly connected to the front plane of the lower end of the ditching shovel handle 7. In the middle part of the convex section of the ditching shovel handle 7, the power shaft 6 is perpendicular to the opening The convex surface of the ditching handle 7 is rotationally connected with the ditching handle 7, the belt pulley 8 is fixedly connected to the power shaft 6 on the right side of the ditching handle 7, and the notched active disc cutter 5 is connected to the ditching handle. The left side of 7 is affixed on the power shaft 6, and active disc cutter 5 has 40 notch teeth that are evenly distributed. The eccentric wheel 12 is affixed on the power shaft 6 on the left side of the driving disc knife 5, and the short arm end of the fork-shaped toggle knife 3 is on the right side of the driving disc knife 5 and is connected with the ditching shovel below the power shaft 6. Handle 7 is hingedly connected, and the long arm end of fork-shaped toggle knife 3 is hinged with connecting rod 9 one ends on the left side of active disc cutter 5, and the other end of connecting rod 9 is hinged with eccentric wheel 12, and eccentric wheel 12, connecting rod 9 and the toggle knife 3 constitute a link kinematic mechanism, and the toggle knife 3 swings up and down when the eccentric wheel 12 rotates. The centerlines of the active disc cutter 5, the toggle cutter 3 and the opener 1 are in the same plane. The support frame 11 of π shape is affixed on the ditching shovel handle 7 below the active disc cutter 5, and the two arms of the support frame 11 are forward and downwardly inclined, and the left arm and the right arm of the support frame 11 are connected with the active disc cutter. The plane where 5 is located is left-right symmetrical. As shown in Figure 2, the spherical left passive disc 2 and the right passive disc 4 are left and right symmetrical on both sides in front of the opener 1, and the convex surfaces are opposite to each other. , the front spacing of the left passive disc 2 and the right passive disc 4 is smaller than the rear spacing, the angle between the two is 60°, and the front spacing is 100mm. The left passive disc 2 and the right passive disc 4 rely on the self gravity of the implement to enter the soil, thereby cutting off and pushing aside the stalks of the sowing belt. The fertilizer pipe 10 is affixed on the lower end rear plane of the ditching shovel handle 7 at the back of the ditch opener 1 .

The structure of the toggle knife 3 is as shown in Figure 4. The blade angle of the sharp angle type is 13°, and the rear is a fork structure, the right side is a short arm, and the left side is a long arm.

During operation, the tractor pulls the combined disc-type no-tillage anti-blocking device, the opener ditches, and the left passive disc 2 and the right passive disc 4 cut or push away the straw on both sides in front of the opener 1 . The power output shaft of the tractor transmits the power to the gearbox through the universal joint, and then transmits the power to the pulley 8 through the power transmission belt on the gearbox. The pulley 8 drives the power shaft 6 to move, thereby driving the active disc cutter 5 to rotate at a high speed. Effectively cut off the stalks and sundries in front of the ditch opener 1 to prevent blockage; at the same time, the eccentric wheel 12 moves synchronously with the power shaft 6, so that the toggle knife 3 moves up and down on the ground surface, so that the ground surface is not blocked. The stalks cut and poked apart by the passive disc 2 or the passive disc 4 are stirred up, and the active disc knife 5 cuts the stalks to prevent blocking.

The utility model is suitable for wheat and corn no-tillage seeders.

Claims (4)

1. one kind is made up disc type zero-tillage anti-blocking device, it is characterized in that, trench digging spade (7) is a convex structure, trench digging spade middle part is a convex shaped section to the right, plough (1) is fixed on the frontal plane of lower end of trench digging spade (7), convex shaped section middle part at trench digging spade (7), line shaft (6) is rotationally connected with trench digging spade (7) perpendicular to the convex of trench digging spade (7), belt wheel (8) is fixed on the line shaft (6) on the right side of trench digging spade (7), initiatively cutting disc (5) is fixed on the line shaft (6) in the left side of trench digging spade (7), eccentric wheel (12) is fixed on the line shaft (6) in the left side of active cutting disc (5), the galianconism end of stirring cutter (3) of fork-shaped is articulated and connected with trench digging spade (7) on the right side of active cutting disc (5) and below line shaft (6), the long arm end of stirring cutter (3) of fork-shaped is hinged at the left side and connecting rod (9) one ends of active cutting disc (5), the other end of connecting rod (9) and eccentric wheel (12) are hinged, eccentric wheel (12), connecting rod (9) and stir cutter (3) and constitute crank rod movement mechanism, eccentric wheel (12) made when rotating to be stirred cutter (3) and swings up and down, active cutting disc (5), the center line of stirring the center line of cutter (3) and plough (1) is in same plane, the bracing frame of π shape (11) is being fixed in below the active cutting disc (5) on the trench digging spade (7), two arms of bracing frame (11) are also downward-sloping forward, the left arm of bracing frame (11) and right arm are left-right symmetry with active cutting disc (5) plane, place, left side driven disk (2) and right driven disk (4) use the left arm and the right arm of bearing pin and bracing frame (11) to be rotationally connected respectively in the both sides, the place ahead of plough (1) left-right symmetry, the spacing of the front of left side driven disk (2) and right driven disk (4) is less than the spacing of back, both angles are 50 °～60 °, the spacing of front is not less than 100mm, and fertilizer pipe (10) is fixed on the lower end back plane of trench digging spade (7) in the back of plough (1).

2. a kind of combination disc type zero-tillage anti-blocking device according to claim 1 is characterized in that described active cutting disc (5) is the breach type, and the breach number of teeth is 30～40, is evenly distributed on the circumference of cutting disc.

3. a kind of combination disc type zero-tillage anti-blocking device according to claim 1 is characterized in that the described blade of stirring cutter (3) is the wedge angle type, and the angle of wedge angle is 10 °～15 °.

4. a kind of combination disc type zero-tillage anti-blocking device according to claim 1 is characterized in that described left driven disk (2) and right driven disk (4) are sphere shape, and convex surface is opposite on the bracing frame (11) mutually.

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