CN201015259Y - Farmland Stone Picker - Google Patents

Abstract

The utility model discloses a farmland stone sorting machine, which comprises a frame, a ground wheel is mounted at the rear of the frame, a concave grid screen is mounted below the rotating shaft of the ground wheel, and a screw shaft is fixedly mounted on the synchronously rotating rotating shaft of the ground wheel. The auger stirrer is equipped with a cutter roller at the front of the frame, and the rotating shaft of the cutter roller is connected to the rotating shaft of the ground wheel. A coulter is installed on the frame between the knife roller and the ground wheel. The coulter It extends obliquely forward and downward to the bottom of the knife roller; the utility model has simple structure and reasonable design. When working, the soil in the field can be shoveled out and the stones can be collected, and the crushed soil can be returned to the field. The stones in the soil can be removed, and the soil can be further refined; the utility model can adjust the plowing depth and width according to the needs in practical application, and can be matched with a rotary tiller or used alone with a tractor.

Description

Farmland Stone Picker

technical field

The utility model relates to agricultural machinery, in particular to a farmland stone picking machine

Background technique

Before planting crops, it is necessary to plow the land and pick out the gravel in the soil. At present, the plowing has been mechanized by tractors, but the work of picking stones has to be done manually. The work of picking stones is very heavy and labor-intensive.

Utility model content

The purpose of the utility model is to provide a farmland stone sorting machine which can separate stones from the farmland and collect the stones.

The technical scheme of the utility model is: a farmland stone sorting machine, including a frame, a ground wheel is installed at the rear of the frame, and a concave grid screen is also equipped under the rotating shaft of the ground wheel, which is fixed on the synchronously rotating rotating shaft of the ground wheel Equipped with a screw auger stirring knife, a knife roller is installed at the front of the frame, the rotating shaft of the knife roller is connected to the rotating shaft of the ground wheel, and a coulter is installed on the frame between the knife roller and the ground wheel. The coulter extends obliquely forward and downward to below the knife roller.

The grid sieve is a semicircular structure composed of two half-arcs, the front and rear outer edges of the two half-arcs are hinged on the frame cross braces, a grid switch is arranged on the middle bottom edge of the two half-arcs, the plow The top of the knife is excessively connected with the outer edge of the front half arc of the grid screen.

The grid screen switch has two jaws forming jaws and a hinged handle. The lower ends of the two jaws are respectively connected to the middle bottom edges of the two semi-arc pieces of the grid screen.

A length-adjustable depth-of-cultivation regulator is connected between the frame and the coulter, and the depth-of-cultivation regulator is composed of an adjustment sleeve fixed on the frame, a depth-of-cultivation adjustment rod that is movable in the adjustment sleeve, and a screw-on The adjusting nuts on the depth of tillage adjusting rods at the two ends of the adjusting sleeve are formed, and the end of the depth of tillage adjusting rod away from the frame is hinged on the coulter.

The two ends of the rotating shaft of the knife roller are movably assembled in two arc-shaped grooves correspondingly arranged on both sides of the frame. arc.

A length-adjustable balance adjuster is connected between the two sides of the coulter and the rotating shafts at the two ends of the knife roller. The threads on the inner ends of the two connecting rods are opposite, and the outer ends of the two connecting rods are respectively hinged on the coulter and the knife roller.

The surface of the coulter is provided with a grid meshed with the teeth of the knife roller.

The top of the frame is provided with a protective cover, and the protective cover is provided with an observation window through which the grid screen can be observed.

The protective cover is connected with a soil scraper that can touch the knife roller teeth.

The utility model has simple structure and reasonable design. The stones in the field can be collected after shoveling out the soil in the field during work, and the crushed soil can be returned to the field, which not only separates the stones in the soil, but also makes the soil finer. In actual application, the utility model can adjust the tillage depth and width according to the needs, and can be matched with a rotary tiller, or can be used alone with a tractor.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a top view of the utility model after the upper protective cover is opened.

Detailed ways

As shown in Figure 1, Figure 2, and Figure 3, the front and rear of the frame 1 are provided with a knife roller 2 and a screw auger mixing knife 4 side by side, and the two ends of the rotating shaft of the knife roller 2 are movably assembled on both sides of the frame 1. In the provided arc-shaped groove 12, the spiral auger stirring blade 4 and the ground wheel 3 are coaxially rotated and assembled on the frame 1. In the vertical arc of the center of the circle, the rotating shaft of the knife roller 2 is connected with the rotating shaft of the ground wheel 3 through sprockets and chains arranged on both sides. Coulter 5 is arranged at the rear and lower part of knife roller 2, the upper end of coulter 5 is hinged on the upper part of frame 1, and the lower end obliquely extends to the lower front of knife roller 2. grid. The top of the frame 1 is provided with a protective cover 9 that can cover the knife roller 2 and the screw auger mixing knife 4. The upper side of the knife roller 2 is connected to the protective cover 9 with a scraper 10 that can touch the knife teeth of the knife roller 2. The bottom of the auger stirring knife 4 is provided with a semi-circumferential grid screen 11, and the inside of the grid screen 11 forms a stone collection bin 16, and the protective cover 9 is provided with an observation window 17 that can observe the inside of the stone collection bin 16, and the grid screen 11 is It is composed of two semi-arcs with a quarter of the circumference, the upper edges of the two half-arcs are hinged on the cross brace of the frame 1, and the inner edge of the middle of the two half-arcs is provided with a pincer-shaped grid switch 12 , the grid screen switch 12 has two pliers mouths forming jaws and pliers handles hinged together, the lower ends of the two pliers mouths are respectively connected to the inner edges of the two half arcs, and the pliers handles of the grid screen switch 12 can be pulled. Control the opening and closing of the two halves of the arc. A length-adjustable depth-of-cultivation regulator is connected between the coulter 5 and the frame 1. The depth-of-cultivation regulator is composed of an adjustment sleeve 7 fixed on the frame 1 and a depth-of-cultivation adjustment rod that is movably worn in the adjustment sleeve. 6. The adjustment nut 8 is screwed on the tillage depth adjustment rod 6 at both ends of the adjustment sleeve 7. The end of the tillage depth adjustment rod 6 far away from the frame 1 is hinged on the coulter 5. By twisting the adjustment nut 8, Adjustable plowing depth regulating rod 6 goes deep into the length in the adjustment sleeve 7 so as to adjust the distance between coulter 5 and frame 1 . A length-adjustable balance adjuster 18 is connected between the two sides of the coulter 5 and the rotating shafts at the two ends of the knife roller 2. The balance adjuster 18 is composed of two connecting rods that are screwed into the same nut and inserted into the nut. The threads on the inner ends of the two connecting rods inside are opposite, and the outer ends of the two connecting rods are respectively hinged on the coulter 5 and the knife roller 2.

The utility model needs to adjust the spacing of coulter 5 and frame 1 and the spacing of coulter 5 and cutter roller 2 before work, so that the rotational axis position of cutter roller 2 is fixed. The utility model is driven by a tractor when in use, and the ground wheel 3 drives the coaxial screw auger mixing knife 4 to rotate simultaneously when rotating, and the ground wheel 3 drives the knife roller 2 to rotate together through a chain and a sprocket wheel. When moving, the coulter 5 scoops up the soil mass and is chopped by the knife roller 2. When encountering stones that cannot be chopped, the knife roller 2 pushes them back into the stone collection bin. Stir in the middle to make the residual soil fall off and fall back to the field through the grid screen 11. During the rotation of the knife roller 2, the soil scraper 10 can scrape off the soil sticking to the knife roller 2, and the stones are blocked by the grid screen 11 and remain in the stone collection bin. Inside, when the tractor driver observes that the stone collection chamber is full of stones through the observation window, the on-board hydraulic mechanism will suspend the stone sorter after parking, and pull the pliers handle of the grid screen switch 12 to separate the two halves of the arc, and the collection Stone can fall in the dolly or the basket that realizes preparation in the stone storehouse 16, close grid screen 11 then, stone sorter is put down and recovers the working state of stone sorter, can continue to pick stone work.

Claims (9)

1. A farmland stone sorting machine, comprising a frame (1), the rear of the frame (1) is equipped with a ground wheel (3), and it is characterized in that: a concave grid screen is also equipped under the rotating shaft of the ground wheel (3) (11), on the synchronous rotation shaft of the ground wheel (3), the screw auger stirring knife (4) is fixedly installed, and the knife roller (2) is equipped at the front part of the frame (1), and the rotating shaft of the knife roller (2) It is driven and assembled with the rotating shaft of the ground wheel (3), and a coulter (5) is mounted on the frame (1) between the knife roller (2) and the ground wheel (3), and the coulter (5) is Stretch obliquely to below the cutter roller (2) before. 2. The farmland stone sorting machine according to claim 1, characterized in that: the grid screen (11) is a semicircular structure composed of two half arcs, and the front and rear outer edges of the two half arcs are hinged on the frame ( 1) On the cross brace, a grid screen switch (12) is arranged on the middle bottom edge of the two half arcs, and the top of the coulter (5) is excessively connected with the outer edge of the front half arc of the grid screen (11). 3. The farmland stone sorter according to claim 2, characterized in that: the grid screen switch (12) has two pliers mouths forming jaws and a pliers handle hinged together, the lower ends of the two pliers mouths are respectively connected to the The middle bottom edge of the two half-arc sheets of grid screen (11) is connected. 4. The farmland stone sorter according to claim 1, 2 or 3, characterized in that: a length-adjustable plowing depth regulator is connected between the frame (1) and the coulter (5), and the plowing depth The regulator is composed of an adjusting sleeve (7) fixed on the frame (1), a depth-of-cultivation adjusting rod (6) that is movable in the adjusting sleeve, and a depth-of-cultivation adjusting rod (6) that is screwed on both ends of the adjusting sleeve (7). 6) on the adjusting nut (8) constitutes, and the end of the tillage depth adjusting rod (6) away from the frame (1) is hinged on the coulter (5). 5. The farmland stone sorting machine according to claim 4, characterized in that: the two ends of the rotating shaft of the knife roller (2) are movably assembled in two arc-shaped grooves (12) correspondingly arranged on both sides of the frame (1) Inside, the circular arc where the two arc-shaped grooves (12) are located is a vertical circular arc centered on the axis of the spiral auger stirring knife (4). 6. The farmland stone sorter according to claim 5, characterized in that: a length-adjustable balance adjuster (18) is connected between the two sides of the coulter (5) and the shafts at both ends of the knife roller (2) , the balance adjuster (18) is made up of two connecting rods that are screwed into the same nut, the threads on the inner ends of the two connecting rods penetrating into the nut go in the opposite direction, and the outer ends of the two connecting rods They are respectively hinged on the coulter (5) and the knife roller (2). 7. The farmland stone sorter according to claim 6, characterized in that: the surface of the coulter (5) is provided with a grid meshing with the teeth of the knife roller (2). 8. The farmland stone sorter according to claim 7, characterized in that: the top of the frame (1) is provided with a protective cover (9), and the protective cover (9) is provided with an observable grid screen (11) observation window (17). 9. The farmland stone sorter according to claim 8, characterized in that: the protective cover (9) is connected with a soil scraper (10) that can touch the knife teeth of the knife roller (2).

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