Stone picking machine

Abstract

The utility model discloses a stone picking machine, which belongs to the field of agricultural machinery and comprises a front traction tie bar, the rear side of the front traction tie bar is fixedly connected with a frame main body, a screening chain system is arranged in the frame main body, and the left side and the right side of the frame main body are fixedly connected with eccentric wheel bearing sleeves. A second bearing is fixedly connected into the eccentric wheel bearing sleeve, a main shaft is fixedly connected into the second bearing and located in the frame body, vibration eccentric blocks are arranged at the left end and the right end of the main shaft, and eccentric wheels and vibration wheels are arranged on the left sides and the right sides of the vibration eccentric blocks respectively. The vibrating eccentric blocks arranged at the two ends of the main shaft are matched with the screening chain system, so that the vibrating eccentric blocks drive the eccentric wheels and the vibrating wheels to rotate, the self-rotating roller generates secondary shaking, and soil structures with high soil humidity, many weeds and the like are screened conveniently; and moreover, soil and stones can be shaken and separated in the conveying and screening process, so that a better screening effect is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a stone-picking machine. Background Technology

[0002] A stone picker is a specialized piece of machinery used in farmland, construction sites, and other similar environments. It is primarily used to remove stones, gravel, and other debris from the surface or shallow soil. Traditional stone removal methods rely mainly on manual picking or simple mechanical sieving, which suffers from low efficiency, high labor intensity, and severe soil damage. Early mechanical stone pickers used chain or roller structures, which, while achieving initial picking, had poor stone separation and easily mixed in large amounts of soil. In recent years, intelligent technologies have been gradually applied to stone picking equipment, such as photoelectric sensor sorting and automatic stone collection systems, further improving stone identification accuracy and collection efficiency. Modern stone pickers have evolved towards high efficiency, low energy consumption, and automation, becoming an indispensable soil treatment equipment in modern agriculture and engineering construction.

[0003] However, mechanical stone sorting machines use chain or roller structures and rely solely on rotation and the gravity of the soil clods for screening. Moreover, the soil-stone separation distance is short during the screening process, resulting in a high soil loss rate in the hopper. If the soil has high moisture content or a lot of weeds, the soil separation effect is poor. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing equipment is difficult to achieve the same results as mechanical stone pickers that use chain or roller structures to screen only by rotation and the gravity of the soil blocks themselves. Moreover, the soil-stone separation distance is short during the screening process, the soil loss rate in the hopper is high, and the soil structure separation effect is poor if the screened soil has high moisture content and a lot of weeds.

[0005] The technical solution adopted to solve the above-mentioned technical problems is to provide a stone-picking machine.

[0006] Furthermore, it includes a front traction bar, the rear side of which is fixedly connected to a frame body. The frame body has a screening chain system inside. Eccentric wheel bearings are fixedly connected to the left and right sides of the frame body. A second bearing is fixedly connected inside the eccentric wheel bearing. A main shaft is fixedly connected inside the second bearing. The main shaft is located inside the frame body. Vibration eccentric blocks are provided at both ends of the main shaft. An eccentric wheel and a vibration wheel are respectively provided on the left and right sides of the vibration eccentric blocks.

[0007] The above technical solution uses the vibrating eccentric blocks set at both ends of the main shaft to cooperate with the screening chain system, so that the vibrating eccentric blocks drive the eccentric wheel and the vibrating wheel to rotate, and the rotating drum generates secondary shaking, which is convenient for screening soil structures with high soil moisture and many weeds. Moreover, it can make the soil and stones shake and separate during the conveying and screening process to achieve better screening effect.

[0008] Furthermore, the vibration eccentric block and the screening chain system are correspondingly arranged, a soil-inserting shovel is fixedly connected to the bottom front side of the frame body, a hydraulic adjustment is fixedly connected above the soil-inserting shovel, the hydraulic adjustment is fixedly connected to the frame body, and the hydraulic adjustment is correspondingly arranged to the soil-inserting shovel.

[0009] The above technical solution allows for the hydraulic adjustment of the height of the shovel, which is used to excavate or scrape soil containing stones from the surface or underground soil and rocks. The chain-link structure is often used in complex terrain operations due to its high bending strength.

[0010] Furthermore, a transition output shaft is provided above the front traction lever, and a drive shaft is fixedly connected to the rear end of the transition output shaft. A gearbox is fixedly connected to the rear end of the drive shaft. The bottom of the gearbox is fixedly connected to the frame body, and the gearbox and the screening chain system are correspondingly arranged.

[0011] Through the above technical solution, the tractor provides power through the universal joint assembly or hydraulic system, pulls the front traction lever to move the stone picker, and transmits the power to the gearbox through the transition output shaft and drive shaft.

[0012] Furthermore, a main drive wheel is provided on the right side of the frame body, a shaking system is provided in the middle of the right side of the frame body, and an active drive wheel is provided on the rear right side of the frame body. The shaking system and the active drive wheel are both configured to correspond to the screening chain system. A chain is rotatably connected between the main drive wheel, the shaking system, and the active drive wheel. A tire system is provided below the frame body. A passive drive wheel is provided inside the frame body. The passive drive wheel is configured to correspond to the screening chain system. A deviation wheel system is provided inside the frame body.

[0013] With the above technical solution, the main drive wheel, the shaking system, and the active drive wheel are all rotatably connected by chains. With the cooperation of the chains, the main drive wheel drives the shaking system and the active drive wheel to rotate. The shaking system drives the self-rotating drum set inside the frame body to shake, so as to separate the soil and stones. The active drive wheel drives the screening chain system to rotate, so that the stones are conveyed to the hopper through the self-rotating drum.

[0014] Furthermore, a synchronous shaft is provided horizontally inside the main frame body. A stone-dissolving tooth main board is fixedly connected to both sides of the synchronous shaft. A stone-dissolving tooth main shaft is rotatably connected to the bottom of the stone-dissolving tooth main board. A drive wheel is fixedly connected to the left end of the stone-dissolving tooth main shaft. A first bearing is fixedly connected to the right end of the stone-dissolving tooth main shaft. A limit wheel is provided above the first bearing and the drive wheel. The limit wheel is correspondingly set to the main frame body. Several stone-dissolving teeth are provided on the outside of the stone-dissolving tooth main shaft.

[0015] Through the above technical solution, the drive wheel drives the stone-discarding teeth set on the main shaft of the stone-discarding tooth to dig or scrape up stones in the soil, and through the cooperation of the first bearing and the limit wheel, the main shaft of the stone-discarding tooth and the stone-discarding teeth slide on the frame body so as to discard stones of different sizes.

[0016] Furthermore, a main frame is fixedly connected to the rear side of the main frame body, and a hopper is provided inside the main frame. A cylinder mounting bracket is fixedly connected to the top of the left and right sides of the hopper. A hydraulic unloading cylinder is fixedly connected inside the cylinder mounting bracket. The hydraulic unloading cylinder is fixedly connected to the main frame. Unloading limit brackets are fixedly connected to the left and right sides of the bottom rear side of the hopper. Limit bearings are provided inside the unloading limit brackets. The unloading limit brackets, limit bearings and main frame are correspondingly arranged.

[0017] Through the above technical solution, the silo adopts a sloping design to increase its capacity. During unloading, the silo is tilted by a hydraulic unloading cylinder installed on the cylinder mounting frame, and the unloading limit frame and limit bearing cooperate to complete the tilting of the silo.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model sets a main shaft inside the frame body, and sets eccentric wheel bearing sleeves and second bearings at both ends of the main shaft to fix the applicable main shaft and facilitate its rotation. The vibrating eccentric blocks set at both ends of the main shaft cooperate with the screening chain system to make the vibrating eccentric blocks drive the eccentric wheel and vibrating wheel to rotate, and make the rotating drum generate secondary vibration, which is convenient for screening soil structures with high soil moisture and many weeds. Moreover, it can make the soil and stones shake and separate during the conveying and screening process to achieve better screening effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the stone-picking machine of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the main shaft part of the stone picking machine of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the vibrating eccentric block part of the stone picking machine of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the hopper part of the stone picking machine of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the main shaft of the stone-picking machine of this utility model.

[0025] Reference numerals: 1. Front traction bar; 2. Hydraulic adjustment; 3. Frame body; 4. Transition output shaft; 5. Drive shaft; 6. Gearbox; 7. Screening chain system; 8. Hopper; 9. Main frame; 10. Hydraulic unloading cylinder; 11. Active drive wheel; 12. Tire system; 13. Chain; 14. Vibration system; 15. Main drive wheel; 16. Offset wheel system; 17. Passive drive wheel; 18. Soil entry shovel; 19. First bearing; 20. Main shaft; 21. Second bearing; 22. Vibration eccentric block; 23. Vibration wheel; 24. Eccentric wheel bearing sleeve; 25. Eccentric wheel; 26. Cylinder mounting bracket; 27. Unloading limit bracket; 28. Limit bearing; 29. ​​Synchronous shaft; 30. Stone-discarding tooth main plate; 31. Limit wheel; 32. Drive wheel; 33. Stone-discarding tooth main shaft; 34. Stone-discarding tooth. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] like Figures 1-5 As shown, the stone-picking machine includes a front traction lever 1, with a frame body 3 fixedly connected to the rear side of the front traction lever 1. A screening chain system 7 is installed inside the frame body 3, which drives a rotating drum to separate soil and stones. Eccentric wheel bearing sleeves 24 are fixedly connected to the left and right sides of the frame body 3. A second bearing 21 is fixedly connected inside the eccentric wheel bearing sleeve 24, and a main shaft 20 is fixedly connected inside the second bearing 21. The main shaft 20 is located inside the frame body 3, and vibrating eccentric blocks 22 are provided at both ends of the main shaft 20. The vibrating eccentric blocks 22 drive a vibrating wheel 23 and an eccentric wheel 25 to rotate, causing the vibrating wheel 23 and the eccentric wheel 25 to abut against the interior of the frame body 3. The rotating drum is designed to generate secondary vibration. Eccentric wheels 25 and vibrating wheels 23 are respectively provided on the left and right sides of the vibrating eccentric block 22. The vibrating eccentric block 22 and the screening chain system 7 are correspondingly set. A transition output shaft 4 is provided above the front traction lever 1. A drive shaft 5 is fixedly connected to the rear end of the transition output shaft 4. A gearbox 6 is fixedly connected to the rear end of the drive shaft 5. The bottom of the gearbox 6 is fixedly connected to the frame body 3. The gearbox 6 and the screening chain system 7 are correspondingly set. An entry shovel 18 is fixedly connected to the front bottom of the frame body 3. A hydraulic adjustment 2 is fixedly connected to the top of the entry shovel 18. The hydraulic adjustment 2 and the frame body 3 are fixedly connected. The hydraulic adjustment 2 and the entry shovel 18 are correspondingly set.

[0028] The frame body 3 has a main drive wheel 15 on its right side, a vibration system 14 in the middle of the right side of the frame body 3, and an active drive wheel 11 on the rear right side of the frame body 3. Both the vibration system 14 and the active drive wheel 11 are correspondingly configured with the screening chain system 7. A chain 13 rotatably connects the main drive wheel 15, the vibration system 14, and the active drive wheel 11. A tire system 12 is located below the frame body 3. A passive drive wheel 17 is located inside the frame body 3, correspondingly configured with the screening chain system 7. An offset wheel system is located inside the frame body 3. The frame body 3 has a horizontally arranged synchronous shaft 29 inside. Both sides of the synchronous shaft 29 are fixedly connected to the stone-dispelling tooth main board 30. The bottom of the stone-dispelling tooth main board 30 is rotatably connected to the stone-dispelling tooth spindle 33. The left end of the stone-dispelling tooth spindle 33 is fixedly connected to the drive wheel 32. The right end of the stone-dispelling tooth spindle 33 is fixedly connected to the first bearing 19. The first bearing 19 and the drive wheel 32 are provided with a limit wheel 31. The limit wheel 31 is correspondingly set with the frame body 3. The outside of the stone-dispelling tooth spindle 33 is provided with several stone-dispelling teeth 34. The stone-dispelling teeth 34 are used to dispel the separated stones.

[0029] The main frame 9 is fixedly connected to the rear side of the main frame 3. The main frame 9 has a hopper 8 inside, which is used to store the separated stones. The top of the left and right sides of the hopper 8 is fixedly connected to the cylinder mounting bracket 26. The cylinder mounting bracket 26 is fixedly connected to the hydraulic unloading cylinder 10 inside. The hydraulic unloading cylinder 10 is used to help the hopper 8 unload materials. The hydraulic unloading cylinder 10 is fixedly connected to the main frame 9. The bottom left and right sides of the rear side of the hopper 8 are fixedly connected to the unloading limit bracket 27. The unloading limit bracket 27 is equipped with a limit bearing 28 inside. The unloading limit bracket 27, the limit bearing 28 and the main frame 9 are set accordingly.

[0030] The working principle of this embodiment is as follows: The tractor provides power through the universal joint assembly or hydraulic system, pulls the front traction lever 1 to move the stone picker, and adjusts the height of the soil entry shovel 18 through the hydraulic adjustment 2. The soil entry shovel 18 digs or scrapes up soil containing stones from the surface or underground soil and stones. The power is transmitted to the gearbox 6 through the transition output shaft 4 and the drive shaft 5. The gearbox 6 drives the screening chain system 7 and the main drive wheel 15 to run. Thus, the mutual cooperation of the chain 13 and the drive wheel 11 causes the self-rotating drum set inside the frame body 3 to perform stone picking. The drive wheel 32 drives the stone picking teeth 34 set on the stone picking tooth main shaft 33 to pick up or scrape up stones in the soil. Through the cooperation of the first bearing 19 and the limit wheel 31, the stone picking tooth main shaft 33 and the stone picking teeth 34 slide on the frame body 3 so as to pick up stones of different sizes.

[0031] A vibration system 14 is installed on the frame body 3. The vibration system 14 drives the rotating drum inside the frame body 3 to vibrate, separating the soil and stones. The stones are conveyed to the hopper 8 through the rotating drum, while the soil falls naturally. In addition, a main shaft 20 is installed inside the frame body 3. Vibrating eccentric blocks 22 and screening chain system 7 are correspondingly set at both ends of the main shaft 20. The screening chain system 7 drives the vibrating eccentric blocks 22, vibrating wheels 23 and eccentric wheels 25 to rotate. The vibrating wheels 23 and eccentric wheels 25 abut against the rotating drum inside the frame body 3, causing secondary vibration. During the rotation of the rotating drum, stones are separated from the soil and conveyed upwards. For soil structures with high moisture content and many weeds, the addition of a secondary vibration device makes the soil and stones vibrate and separate during the screening process, achieving a good screening effect.

[0032] After separation, the stones enter the hopper 8 through the conveying mechanism. The hopper 8 adopts a sloping design to increase its capacity. During unloading, the hydraulic unloading cylinder 10 is installed on the cylinder mounting frame 26, and the hopper 8 is tilted to complete the dumping with the cooperation of the unloading limit frame 27 and the limit bearing 28.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A stone-picking machine, including a front traction lever (1), characterized in that: The rear side of the front traction bar (1) is fixedly connected to the frame body (3). The frame body (3) is equipped with a screening chain system (7). The left and right sides of the frame body (3) are fixedly connected to the eccentric wheel bearing sleeve (24). The eccentric wheel bearing sleeve (24) is fixedly connected to the inside of the eccentric wheel bearing sleeve (24). The second bearing (21) is fixedly connected to the inside of the second bearing (21). The main shaft (20) is fixedly connected to the inside of the second bearing (21). The main shaft (20) is located inside the frame body (3). Vibration eccentric blocks (22) are provided at both ends of the main shaft (20). Eccentric wheels (25) and vibration wheels (23) are provided on the left and right sides of the vibration eccentric blocks (22).

2. The stone-picking machine according to claim 1, characterized in that, The vibration eccentric block (22) and the screening chain system (7) are respectively set. The bottom front side of the frame body (3) is fixedly connected to the soil shovel (18). The upper part of the soil shovel (18) is fixedly connected to the hydraulic adjustment (2). The hydraulic adjustment (2) and the frame body (3) are fixedly connected. The hydraulic adjustment (2) and the soil shovel (18) are respectively set.

3. The stone-picking machine according to claim 1, characterized in that, A transition output shaft (4) is provided above the front traction bar (1). A transmission shaft (5) is fixedly connected to the rear end of the transition output shaft (4). A gearbox (6) is fixedly connected to the rear end of the transmission shaft (5). The bottom of the gearbox (6) is fixedly connected to the frame body (3). The gearbox (6) and the screening chain system (7) are set accordingly.

4. The stone-picking machine according to claim 1, characterized in that, The frame body (3) is provided with a main drive wheel (15) on the right side, a shaking system (14) is provided in the middle of the right side of the frame body (3), and an active drive wheel (11) is provided on the rear right side of the frame body (3). The shaking system (14) and the active drive wheel (11) are both set to correspond with the screening chain system (7). The main drive wheel (15), the shaking system (14), and the active drive wheel (11) are all rotatably connected by a chain (13). The frame body (3) is provided with a tire system (12) below it. The frame body (3) is provided with a passive drive wheel (17) inside it. The passive drive wheel (17) is set to correspond with the screening chain system (7). The frame body (3) is provided with a deflection wheel system (16) inside it.

5. The stone-picking machine according to claim 1, characterized in that, The frame body (3) has a synchronous shaft (29) arranged horizontally inside. Both sides of the synchronous shaft (29) are fixedly connected to the stone-picking tooth main board (30). The bottom of the stone-picking tooth main board (30) is rotatably connected to the stone-picking tooth spindle (33). The left end of the stone-picking tooth spindle (33) is fixedly connected to the drive wheel (32). The right end of the stone-picking tooth spindle (33) is fixedly connected to the first bearing (19). The first bearing (19) and the drive wheel (32) are provided with a limiting wheel (31). The limiting wheel (31) and the frame body (3) are correspondingly arranged. The outside of the stone-picking tooth spindle (33) is provided with several stone-picking teeth (34).

6. The stone-picking machine according to claim 1, characterized in that, The main frame (9) is fixedly connected to the rear side of the main frame (3). The main frame (9) is equipped with a hopper (8). The top of the left and right sides of the hopper (8) is fixedly connected to a cylinder mounting bracket (26). The cylinder mounting bracket (26) is fixedly connected to a hydraulic unloading cylinder (10). The hydraulic unloading cylinder (10) is fixedly connected to the main frame (9). The bottom left and right sides of the rear side of the hopper (8) are fixedly connected to unloading limit brackets (27). The unloading limit bracket (27) is equipped with a limit bearing (28). The unloading limit bracket (27), the limit bearing (28), and the main frame (9) are correspondingly arranged.

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