Self-propelled vibrating screen and stone picking machine

Abstract

The utility model provides a kind of self-propelled vibrating screen divides conveying integrated stone picker, it is specifically related to the technical field of stone picker, it is characterized by: two groups of travelling wheels are equipped in the bottom of machine body, for dragging machine body whole operation, machine body front end is obliquely equipped with conveying frame, conveying frame is equipped with conveyor belt, the upper and lower sides of conveyor belt are equipped with driving gear, driving gear is equipped with chain outside, chain drives conveyor belt to run, conveying frame side is equipped with sieve box, sieve box two sides are penetrated by transmission shaft, transmission shaft surface is equipped with multiple screening rods, sieve box bottom is equipped with sieve plate, sieve plate below is equipped with material grading conveyor device;The utility model is driven by the cooperation of the bottom of machine body two groups of travelling wheels, breaks away from the dependence of traditional equipment on external traction power of tractor, realizes independent travel and operation synchronous control, combines the flow guiding effect of front bulldozing shovel and the linkage structure of conveyor belt and sieve box, so that material collection, lifting, screening form continuous operation.

Description

Technical Field

[0001] This utility model relates to the field of stone picking machine technology, specifically to a self-propelled vibrating screening and conveying integrated stone picking machine. Background Technology

[0002] In agricultural cultivation and land preparation, the screening and removal of gravel and debris is a crucial step affecting operational efficiency and soil quality. Traditional stone-picking machines rely heavily on external power sources such as tractors, resulting in poor mobility and a cumbersome overall process due to the separation of the screening device from the conveying structure. Existing technologies often employ fixed screens or single vibrating structures for the screening mechanism, leading to low screening efficiency and clogging issues, particularly noticeable incomplete screening of clayey soils or materials mixed with gravel. Furthermore, the screened gravel and debris typically require secondary manual sorting or grading by multiple machines, increasing labor intensity and reducing operational continuity.

[0003] To address the aforementioned issues, it is necessary to design an integrated device that combines self-propelled drive, high-efficiency screening, and automatic grading and conveying to improve screening accuracy and operational smoothness while reducing maintenance complexity. Utility Model Content

[0004] The purpose of this utility model is to provide a self-propelled vibrating screening and conveying integrated stone picking machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-propelled vibrating screening and conveying integrated stone picking machine, comprising a machine body, traveling wheels, and a material grading and conveying device, characterized in that: two sets of traveling wheels are provided on both sides of the bottom of the machine body for driving the overall operation of the machine body; a conveying frame is inclined at the front end of the machine body; a conveyor belt is provided inside the conveyor frame; drive gears are provided on the upper and lower sides of the conveyor belt; a chain is sleeved on the outside of the drive gears; the chain drives the conveyor belt to run; a screen box is provided on one side of the conveyor frame; a drive shaft passes through both sides of the screen box; multiple screening rods are provided on the surface of the drive shaft; a screen plate is provided at the bottom of the screen box; and a material grading and conveying device is provided below the screen plate.

[0006] The material grading and conveying device includes a main material conveyor belt and a secondary material conveyor belt. The secondary material conveyor belt is located directly below the screen plate and is used to convey the screened crushed stone and slag. Its end is located directly above the crushed stone and slag collection box. The main material conveyor belt is located on one side of the screen plate and its end is located directly above the crushed stone and slag collection box.

[0007] Preferably, the bottom front end of the conveyor frame is equipped with a bulldozer blade to facilitate the stable entry of crushed stone onto the conveyor belt.

[0008] Preferably, the end of the conveyor belt is connected to a transmission plate, and the other end of the transmission plate is connected to one side of the screen box. The conveyor belt transports the crushed stone into the screen box through the transmission plate.

[0009] Preferably, the screening rod is a cylindrical long rod, which is arranged in a ring on the surface of the transmission shaft and rotates in a circular motion to perform screening, and the end of the screening rod is in contact with the screen plate.

[0010] Preferably, the sieve plate is semi-arc-shaped, which facilitates better screening of the crushed stone by the screening rod.

[0011] Preferably, the crushed stone collection box has a door on one side surface, the bottom of the door is hinged to the surface of the machine body, and two telescopic shafts are fixedly connected to the top two sides of the door, with the other end of the telescopic shafts fixed to the surface of the machine body.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model, through the coordinated drive design of two sets of walking wheels at the bottom of the machine body, gets rid of the dependence of traditional equipment on external traction power such as tractors, realizes autonomous movement and synchronous control of operation. Combined with the guiding effect of the front bulldozer blade and the linkage structure of the conveyor belt and screen box, the material collection, lifting and screening form a continuous operation flow, which reduces power loss compared with traditional split equipment.

[0014] 2. This utility model uses a cylindrical screening rod assembly driven by a transmission shaft and a semi-arc screen plate to screen in tandem, forming a dynamic screening space. The circular motion of the screening rod generates high-frequency vibration waves, which effectively break up soil clumps. The design of the screen rod end and the screen plate fits together to form a self-cleaning interface, avoiding the clogging of screen holes common in traditional flat screens. The semi-arc screen plate matches the material throwing trajectory, which greatly improves the screening efficiency.

[0015] 3. This utility model achieves the following by using the cross layout of the auxiliary material conveyor belt and the main material conveyor belt: the undersized crushed slag is directly introduced into the crushed stone collection box via the auxiliary material conveyor belt, and can be reused as roadbed filler; the qualified stone material on the screen is accurately diverted to the special crushed stone collection box via the main conveyor belt. The dual-channel design keeps the material mixing rate within a suitable range, which greatly improves the efficiency compared to manual sorting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the opening of the compartment door of this utility model.

[0018] Figure 3 This is a schematic cross-sectional view of the present invention.

[0019] The components in the attached diagram are labeled as follows: 1: Machine body, 2: Wheels, 3: Conveyor frame, 4: Conveyor belt, 5: Drive gear, 6: Chain, 7: Bulldozer blade, 8: Transmission plate, 9: Screen box, 10: Drive shaft, 11: Screening rod, 12: Screen plate, 131: Main material conveyor belt, 132: Secondary material conveyor belt, 133: Crushed stone collection box, 134: Crushed stone slag collection box, 14: Door, 15: Telescopic shaft Detailed Implementation

[0020] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0021] like Figure 1-3 As shown, this embodiment provides a self-propelled vibrating screening and conveying integrated stone picking machine, including a machine body 1, traveling wheels 2, a screen box 9, and a material grading and conveying device. The machine body 1 adopts an all-steel welded frame, with two sets of hydraulically driven traveling wheels 2 symmetrically installed on both sides of the bottom. The surface of the wheels is provided with anti-slip texture. The forward, turning, and parking functions are realized by independent motor drive, eliminating the dependence on external traction. The front end of the machine body 1 is inclined and fixed to the conveyor frame 3 through a hinge mechanism, with an inclination angle of 30°-45°. A high-strength rubber conveyor belt 4 is embedded in the conveyor frame 3, with anti-slip ridges evenly distributed on the belt surface. The upper and lower ends of the conveyor belt 4 are driven by the drive gear 5 and the chain, respectively. The gear set meshes with the chain 6 to form a closed-loop transmission system to ensure that the conveyor belt 4 runs at a constant linear speed.

[0022] A bulldozer blade 7 is welded to the front bottom of the conveyor frame 3. The blade has a V-shaped opening and is made of wear-resistant alloy. During operation, it is embedded 5-10cm below the ground to guide the surface gravel and soil mixture to the conveyor belt 4. The end of the conveyor belt 4 is seamlessly connected to the side wall of the screen box 9 via a transmission plate 8. The transmission plate 8 is made of corrugated steel plate and uses its own rotation to make the material slide into the screen box 9.

[0023] A drive shaft 10 is installed through both sides of the screen box 9. Multiple sets of cylindrical screening rods 11 arranged in a ring array are welded to the surface of the drive shaft 10. The diameter of the rods extends to the surface of the screen plate 12 and maintains a gap of 1-2mm. The screen plate 12 adopts a semi-arc steel screen, and the mesh size is set according to the requirements of crushed stone grading. The arc radius of the screen plate 12 matches the rotation trajectory of the screening rods 11. A vibration motor is installed at the bottom of the screen box 9 to drive the screen plate 12 to generate high-frequency micro-amplitude vibration.

[0024] The material grading and conveying device includes a main material conveyor belt 131 and a secondary material conveyor belt 132. The secondary material conveyor belt 132 is arranged parallel to the screen plate 12 directly below it and adopts a mesh belt structure to receive the undersize slag and convey it to the rear-mounted crushed stone collection box 134. The main material conveyor belt 131 is arranged at an angle on the outlet side of the screen box 9 and has a transverse baffle on its belt surface to guide the qualified stone material on the screen into the crushed stone collection box 133. The two conveyor belts are driven independently by variable frequency motors and the speed is adjustable to adapt to different working conditions. The crushed stone collection box 134 has a door 14 on its side wall. The door 14 is hinged to the box body by a bottom hinge and connected to electric telescopic shafts 15 on both sides of the top to realize automatic unloading of slag.

[0025] Working principle: During operation, the traveling wheels 2 drive the machine body forward at a constant speed. The bulldozer blade 7 scoops up the surface mixture and guides it to the conveyor belt 4. The conveyor belt 4 lifts the material to the inlet of the screen box 9, and after being driven by the transmission plate 8, it falls evenly into the screen box 9. The transmission shaft 10 is driven by a reduction motor, which drives the screening rod 11 to make a circular motion. When the screening rod 11 rotates, it forms a screening separation with the screen plate 12, generating high-frequency vibration waves, which effectively breaks up soil clumps. The end of the screening rod 11 and the screen plate 12... 2. The clearance fit scrapes away the debris clogging the mesh during rotation; qualified stone slides along the screen surface into the main material conveyor belt 131 under the action of centrifugal force, while the debris falls through the mesh into the auxiliary material conveyor belt 132. The graded stone is collected and stored in the crushed stone collection box 133 by the main material conveyor belt 131, and the debris is introduced into the slag box 134 by the auxiliary material conveyor belt 132. When the slag box is full, the telescopic shaft 15 extends and opens the box door 14 to achieve lateral unloading. The whole process does not require machine shutdown intervention.

[0026] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A self-propelled vibrating screening and conveying integrated stone picking machine, comprising a machine body (1), wheels (2), a screen box (9), and a material grading and conveying device, characterized in that: The machine body (1) has two sets of walking wheels (2) on both sides of the bottom for dragging the machine body (1) to run. The front end of the machine body (1) is inclined with a conveyor frame (3). The conveyor frame (3) is equipped with a conveyor belt (4). The upper and lower sides of the conveyor belt (4) are equipped with drive gears (5). The drive gears (5) are fitted with chains (6) on the outside. The chains (6) drive the conveyor belt (4) to run. The conveyor frame (3) has a screen box (9) on one side. The screen box (9) is penetrated by a drive shaft (10) on both sides. The drive shaft (10) is equipped with multiple screening rods (11) on its surface. The bottom of the screen box (9) is equipped with a screen plate (12). The screen plate (12) is equipped with a material grading and conveying device below it. The material grading and conveying device includes a main material conveyor belt (131) and a secondary material conveyor belt (132). The secondary material conveyor belt (132) is located directly below the screen plate (12) and is used to convey the screened crushed stone slag. Its end is located directly above the crushed stone slag collection box (134). The main material conveyor belt (131) is located on one side of the screen plate (12) and its end is located directly above the crushed stone collection box (133).

2. The self-propelled vibrating screening and conveying integrated stone-picking machine as described in claim 1, characterized in that: The bottom front end of the conveyor frame (3) is equipped with a bulldozer blade (7) to facilitate the stable entry of crushed stone onto the conveyor belt (4).

3. The self-propelled vibrating screening and conveying integrated stone-picking machine as described in claim 1, characterized in that: The conveyor belt is connected to a transmission plate at one end, and the other end of the transmission plate is connected to one side of the screen box. The conveyor belt transports the crushed stone into the screen box through the transmission plate.

4. The self-propelled vibrating screening and conveying integrated stone-picking machine as described in claim 1, characterized in that: The screening rod (11) is a cylindrical long rod, which is arranged in a ring on the surface of the transmission shaft (10) and rotates in a circular motion to perform screening. The end of the screening rod (11) is in contact with the screen plate (12).

5. The self-propelled vibrating screening and conveying integrated stone-picking machine as described in claim 1, characterized in that: The sieve plate (12) is semi-arc-shaped, which makes it easier for the screening rod (11) to screen the gravel.

6. The self-propelled vibrating screening and conveying integrated stone-picking machine as described in claim 1, characterized in that: The crushed stone collection box has a door (14) on one side surface. The bottom of the door (14) is hinged to the surface of the machine body (1) by a hinge. Two telescopic shafts (15) are fixedly connected to the top two sides of the door. The other end of the telescopic shafts (15) is fixed to the surface of the machine body (1).

Images