A sled depth control stone picker

Abstract

The application discloses a slide depth-limiting stone picking machine and a working method thereof, and belongs to farmland preparation agricultural machines. The stone picking machine comprises a frame, the frame is provided with a three-point suspension upper pin shaft and a three-point suspension lower pin shaft, and the bottom of the frame is symmetrically provided with a left slide and a right slide; a corner gear box is fixed on the frame, a soil breaking claw is arranged at the front edge of a front-end soil shovel plate, a stone conveying chain plate mechanism is arranged at the middle part, and a stone storage box provided with a switch handle is arranged at the rear part. When working, a tractor provides power, the slide is in close contact with the ground to limit the depth, the soil breaking shovel lifts the stones, and the chain plate conveys the stones to the stone storage box. The application solves the problems of unstable stone picking depth and easy stone missing and sticking on the slope, is suitable for mountain farmland preparation, and has high working efficiency.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology for farmland preparation, and is particularly suitable for skid-mountain and slope farmland operations with limited depth stone picking. Background Technology

[0002] The soil in mountainous farmland is mixed with a large number of stones, requiring manual stone removal before sowing, which is labor-intensive and inefficient. Existing stone removal equipment mostly adopts a wheeled depth-limited structure, which is prone to slipping and getting stuck when traveling on uneven slopes and gravelly areas, and the depth of penetration into the soil is unstable. In addition, the soil-shoveling and soil-breaking structure of traditional stone removal machines is prone to getting stuck with stones, stone conveying is prone to side leakage, and the unloading operation of the stone storage box is inconvenient, making it difficult to adapt to tractor-assisted operation on small mountain plots. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a skid-driven depth-limiting stone picking machine. It adopts a combination of left and right skids to achieve stable depth limitation, is equipped with a three-point suspension and tractor power input, and has a soil breaking and shoveling structure combined with chain conveyor. It integrates stone collection and storage, and has a stable working depth on slopes, making it less prone to stone jamming and leakage.

[0004] The present invention relates to a skid-mounted depth-limited stone-picking machine, comprising a frame; a three-point suspension upper pin shaft is provided on the upper part of the frame, and a three-point suspension lower pin shaft is provided on the lower part of the frame; a tractor is connected to the frame via the three-point suspension upper and lower pin shafts; a rotary gearbox is fixedly installed on the frame, with a tractor drive shaft splined shaft connected to the input end of the rotary gearbox, and a rotary gearbox output power pulley installed at the output end of the rotary gearbox; a soil-shoveling plate is provided at the front of the frame, with soil-breaking claws fixed at the bottom of the soil-shoveling plate; a stone-carrying chain plate mechanism is installed in the middle of the frame, the stone-carrying chain plate mechanism including a stone-carrying chain plate drive wheel, a stone-carrying chain plate bottom wheel, a stone-carrying chain plate pulley, and a stone-carrying chain plate arranged around it; the rotary gearbox output power pulley drives the stone-carrying chain plate pulley via a transmission V-belt; A stone storage box is installed at the rear of the frame, and a steel plate door handle for the stone storage box is installed on the stone storage box; a left baffle plate and a right baffle plate are respectively installed on the left and right sides of the shovel plate; a left sliding skid and a right sliding skid are installed on the bottom sides of the frame to slide close to the ground and limit the depth of the shovel plate into the soil.

[0005] Furthermore: the left and right sliding skids are symmetrically arranged on both sides of the bottom of the frame. Furthermore: the soil-breaking claw is located at the front edge of the shovel plate, used to break through the soil layer, turn over the stones, and feed them into the stone conveying chain plate. Furthermore: the left and right baffle plates prevent stones from falling from both sides of the stone conveying chain plate. Furthermore: the stone storage box is controlled by a handle on the steel plate door of the storage box to open the door and unload the stones. Attached Figure Description

[0006] Figure 1 is a front view of the skid-mounted depth-limited stone picking machine of the present invention; Figure 2 is a top view of the skid-mounted depth-limited stone picking machine of the present invention; the reference numerals in the figures are as follows: 1: angle gearbox, 2: output power pulley of angle gearbox, 3: spline shaft connecting to tractor drive shaft, 4: upper pin of three-point suspension, 5: frame, 6: lower pin of three-point suspension, 7: right skid, 8: soil scraper, 9: soil breaking claw, 10: bottom wheel of stone transport chain plate, 11: steel plate door switch handle of stone storage box, 12: stone storage box, 13: pulley of stone transport chain plate, 14: drive wheel of stone transport chain plate, 15: stone transport chain plate, 16: transmission V-belt, 17: left skid, 18: left baffle plate, 19: right baffle plate. Detailed Implementation

[0007] The invention will now be described in detail with reference to the accompanying drawings. This invention relates to a skid-mounted stone-collecting machine with a depth limit. The frame 5 is connected to the rear of a tractor via a three-point suspension upper pin 4 and a three-point suspension lower pin 6. The tractor's power take-off shaft is connected to the tractor's drive shaft and splined shaft 3, transmitting power to a rotary gearbox 1. The rotary gearbox 1 drives the output power pulley 2 to rotate, which in turn drives the stone-carrying chain pulley 13 via a transmission V-belt 16, causing the stone-carrying chain drive wheel 14 to rotate. The stone-carrying chain 15 surrounds the drive wheel 14 and the bottom wheel 10, with the drive wheel 14 driving the stone-carrying chain 15 in a cyclical motion. A left skid 17 and a right skid 7 are installed at the bottom of the frame. During operation, the left skid 17 and right skid 7 slide close to the ground, limiting the depth of the shovel plate 8 in the soil, maintaining a stable working depth even on sloping or uneven ground. The front edge of the shovel plate 8 is fixed with a soil-breaking claw 9. When moving forward, the soil-breaking claw breaks through the surface soil, and the soil and stones are lifted by the shovel plate. The stones are transported to the stone conveyor chain plate 15. The left baffle plate 18 and the right baffle plate 19 block the stones to prevent them from slipping off the sides of the chain plate. The stone conveyor chain plate 15 is supported by the bottom wheel 10 and smoothly transports the stones backward, which fall into the stone storage box 12 at the rear. After the stone storage box 12 is full, the machine stops, and the steel plate door switch handle 11 of the stone storage box is pulled to open the box door, completing the unloading of the stones.

Claims

1. A skid-mounted, depth-limited stone-picking machine, characterized in that: The machine includes a frame; the upper part of the frame is equipped with a three-point suspension upper pin shaft, and the lower part of the frame is equipped with a three-point suspension lower pin shaft; the frame is used to attach a tractor via the three-point suspension upper and lower pin shafts; a rotary gearbox is fixed on the frame, the input end of the rotary gearbox is connected to a splined shaft of the tractor drive shaft, and the output end of the rotary gearbox is equipped with a rotary gearbox output power pulley; a shovel plate is provided at the front of the frame, and a soil-breaking claw is fixed at the bottom of the shovel plate; a stone-carrying chain plate mechanism is installed in the middle of the frame, the stone-carrying chain plate mechanism includes a stone-carrying chain plate drive wheel, a stone-carrying chain plate bottom wheel, a stone-carrying chain plate pulley, and stone-carrying chain plates arranged around it; the rotary gearbox output power pulley drives the stone-carrying chain plate pulley via a transmission V-belt; a stone storage box is provided at the rear of the frame, and a stone storage box steel plate door switch handle is installed on the stone storage box; a left baffle plate and a right baffle plate are respectively provided on the left and right sides of the shovel plate; a left skid and a right skid plate are installed on the bottom sides of the frame.

2. The skid-mounted depth-limited stone-picking machine according to claim 1, characterized in that: The left and right skids are symmetrically arranged on both sides of the bottom of the frame.

3. The skid-mounted depth-limited stone-picking machine according to claim 1, characterized in that: The soil-breaking claw is fixedly installed on the front edge of the soil-shoveling plate.

4. The skid-mounted depth-limited stone-picking machine according to claim 1, characterized in that: The left and right baffle plates are respectively located on the left and right sides of the shovel plate.

5. A method for farmland stone-picking operation using a skid-mounted depth-limiting stone-picking machine as described in any one of claims 1 to 4, characterized in that, The process includes the following steps: S1. Connect the frame to the rear of the tractor via the three-point suspension upper and lower pins. Connect the tractor's power take-off shaft to the tractor's drive shaft and spline shaft. S2. The tractor moves forward, with the left and right skids sliding close to the ground to limit the depth of the shovel blades. The soil-breaking claws break through the soil layer, and the shovel blades scoop up the soil and stones. S3. The angle gearbox transmits power, which drives the stone-carrying chain plate to circulate through the transmission V-belt. Under the constraint of the left and right baffle plates, the stones are transported backward by the stone-carrying chain plate and fall into the stone storage box. S4. After the stone storage box is full of stones, the tractor stops moving and the handle of the steel plate door of the stone storage box is turned on to open the box door for unloading.

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