A crushing and screening device for land reclamation

Abstract

The application discloses a crushing and screening device for land reclamation, belonging to the technical field of crushing and screening devices, which comprises a connecting piece, a material taking assembly and a screen cylinder; the material taking assembly comprises a cylinder body, the inside axis of the cylinder body is provided with a rotating shaft, the shaft body of the rotating shaft is provided with spiral blades, the end cover is provided with a motor and a transmission box, the motor drives the rotating shaft to rotate through an output end of the transmission box; the screen cylinder is rotationally connected with the cylinder body through a connecting disc; another output end of the transmission box drives a transmission rod to rotate through a shaft coupling, the rod body of the transmission rod is provided with rollers for driving the screen cylinder to rotate, the rod body of the transmission rod is also provided with crushing knives, and the discharge chute is provided with a cutting groove for the crushing knives to pass through. The application has a simple and ingenious structure, one power source can realize synchronous operation of soil taking, crushing and screening, solves the defects of complex structure and high cost of traditional multiple power sources, can realize soil taking operation at different depths, has wide applicability, is detachable as a whole, and is convenient for later maintenance and treatment.

Description

Technical Field

[0001] This invention relates to the field of crushing and screening equipment technology, specifically a crushing and screening equipment for land reclamation. Background Technology

[0002] In land consolidation, the quality of soil samples taken is often poor. Many imported soils contain high levels of gravel and debris such as tree roots. Rural construction land converted to arable land often contains building materials like bricks and tiles. Excessive gravel and weathered material from mine reclamation also contribute to the substandard quality of newly created arable land. In northern regions, some arable land has large amounts of calcareous nodules, which negatively impacts soil quality due to poor tillage. Soil crushing and sieving are crucial steps in land consolidation. Their main purpose is to break down large clods of soil into fine particles and remove impurities such as gravel and tree roots, thereby improving the quality of land cultivation and utilization efficiency.

[0003] Traditional crushing and screening operations often rely on manual labor or multiple independent devices to complete soil extraction, crushing, and screening. This not only results in high labor intensity and low efficiency but also complex equipment structures, large space requirements, and high maintenance costs. For example, some equipment uses separate motors to drive the material handling mechanism, crushing device, and screening device, leading to overall structural redundancy, high energy consumption, and poor coordination between components, affecting the continuity and stability of the entire machine's operation. Furthermore, existing equipment often struggles to achieve good material flow during crushing and screening, easily causing blockages or incomplete screening, thus reducing work efficiency.

[0004] Therefore, there is an urgent need for a compact, efficient, and integrated crushing and screening device that combines soil extraction, crushing, and screening to meet the higher requirements for equipment efficiency, energy saving, and ease of operation in the land remediation process. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a crushing and screening device for land remediation. The device has a simple and ingenious structure, and a single power source can realize the simultaneous operation of soil extraction, crushing and screening. It solves the drawbacks of complex structure and high cost when multiple power sources are used separately in the traditional method. It can realize soil extraction at different depths, has wide applicability, and is detachable for easy maintenance. It can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a crushing and screening device for land remediation, comprising a connector, a material receiving assembly, and a screen cylinder; the connector includes a fixed frame and a connecting frame, one side plate of the fixed frame is fixedly connected to the material receiving assembly, the other side plate of the fixed frame has a linear array of multiple through holes, one end of the connecting frame is provided with a connecting seat, and the other end of the connecting frame is pinned to the fixed frame by a pin shaft; the material receiving assembly includes a cylinder, the lower end of the cylinder is open and the upper end is provided with an end cover, the internal axis of the cylinder is provided with a rotating shaft, the shaft of the rotating shaft is provided with helical blades, the end cover is provided with a motor and a transmission box, the motor drives the rotating shaft to rotate through one output end of the transmission box; the screen cylinder is rotatably connected to the cylinder through a connecting plate, the connecting plate is provided with a material discharge port; the outer wall of the cylinder is provided with a discharge trough near the end cover; the other output end of the transmission box drives a transmission rod to rotate through a coupling, the shaft of the transmission rod is provided with rollers adapted to the screen cylinder, the shaft of the transmission rod is also provided with a crushing blade for cutting the soil in the discharge trough, and the discharge trough is provided with a cutting groove for the crushing blade to pass through.

[0007] Preferably, the connector further includes a hydraulic cylinder, the cylinder body end of which is hinged to the connecting frame, and the telescopic end of the hydraulic cylinder is pinned to the fixed frame through an ear seat and a pin shaft, with the pin shaft passing through the ear seat and a through hole; the fixed frame is fixedly connected to the cylinder of the material handling assembly.

[0008] Preferably, the transmission box includes a housing, inside which two bevel gears 1 and 2 are rotatably connected. The two bevel gears 1 are opposite to each other and spaced apart. The bevel gears 2 mesh with both bevel gears 1 for transmission. The output shaft of the motor is connected to one of the bevel gears 1, the other bevel gear 1 is connected to the rotating shaft, and the bevel gears 2 are connected to the transmission rod.

[0009] Preferably, the connecting plate is disposed on the outer wall of the cylinder, and the connecting plate is 40-60cm away from the lower opening of the cylinder. The connecting plate is rotatably connected to the outer wall of the cylinder through a bearing.

[0010] Preferably, the screen cylinder is movably clamped to the connecting plate, the outer edge of the connecting plate is provided with an annular clamping plate, the annular clamping plate is provided with an annular groove for the screen cylinder to be inserted, and the outer wall of the annular clamping plate is threaded with a plurality of locking bolts for locking the screen cylinder.

[0011] Preferably, the roller is provided with a groove that matches the end of the screen cylinder, and the roller is movably mounted on the transmission rod. The transmission rod is threaded with two locking nuts, which are located at both ends of the roller.

[0012] Preferably, the crushing blade is provided with multiple blades arranged in a circular array around the axis of the transmission rod, and the shaft of the transmission rod is also provided with a fixed plate. The crushing blade is connected to the fixed plate by a bolt and nut assembly.

[0013] Preferably, the cylinder and the spiral blades form a spiral hopper, and the spiral hopper is provided with multiple blades arranged in a spiral shape, with the blade edges facing the spirally rising soil.

[0014] Preferably, the end cap is connected to the cylinder by bolts.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The motor drives the rotating shaft and spiral blades to rotate through the transmission box, thereby realizing the soil extraction operation. Then, the soil is discharged into the screen cylinder through the discharge chute. At the same time, the motor drives the crushing blade and roller to rotate through the transmission box. The crushing blade rotates to cut and crush the soil in the discharge chute. The roller rotates to drive the screen cylinder to rotate, realizing the screening of the crushed soil. That is, one power source can realize the simultaneous operation of soil extraction, crushing and screening. The structure is simple and ingenious, solving the disadvantages of complex structure and high cost when multiple power sources operate separately in the traditional way.

[0017] (2) Agricultural machinery is connected by setting up connecting parts, that is, the connecting seat is connected to the agricultural machinery and can move. The connecting frame is connected to the through hole of the fixed frame by the pin shaft. The height of the material picking component can be adjusted according to the needs to achieve material picking operations at different depths. Moreover, the angle of the material picking component can be adjusted by the hydraulic cylinder to adjust the screening effect of the screen cylinder. With the help of the agricultural machinery to drive the movement, the land reclamation efficiency is higher and the application range is wider.

[0018] (3) The motor and transmission box are mounted on the end cover. The end cover is connected to the cylinder by bolts and can be disassembled. The transmission rod is connected to the transmission box by a coupling and can be disassembled. The screen cylinder and the connecting plate are clamped by locking bolts and can be disassembled. In addition, the crushing blade is connected to the fixed plate by bolts, and the roller is connected to the transmission rod by two locking nuts. This facilitates later maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 for Figure 2 A magnified schematic diagram of a local structure;

[0022] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A;

[0023] Figure 5 This is a partial structural diagram of the present invention;

[0024] Figure 6 This is a schematic diagram illustrating the usage state of the present invention.

[0025] In the diagram: 1 Connector, 1.1 Fixing frame, 1.2 Through hole, 1.3 Ear seat, 1.4 Hydraulic cylinder, 1.5 Connecting seat, 1.6 Connecting frame, 2 Material handling assembly, 2.1 Cylinder, 2.2 Blade, 2.3 Rotating shaft, 2.4 Spiral blade, 2.5 End cover, 2.6 Discharge chute, 2.7 Cutting groove, 3 Connecting disc, 3.1 Ring groove, 3.2 Bearing, 3.3 Discharge port, 3.4 Locking bolt, 4 Screen cylinder, 5 Roller, 5.1 Locking nut, 6 Crusher, 6.1 Fixing disc, 7 Transmission rod, 8 Motor, 9 Transmission box, 9.1 Box body, 9.2 Bevel gear one, 9.3 Bevel gear two. Detailed Implementation

[0026] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation.

[0027] Please see Figure 1-6 The present invention provides the following technical solutions:

[0028] Example 1: As Figure 1 and Figure 2As shown, a crushing and screening device for land remediation includes a connector 1, a material handling assembly 2, and a screen cylinder 4. The connector 1 includes a fixed frame 1.1 and a connecting frame 1.6. One side plate of the fixed frame 1.1 is fixedly connected to the material handling assembly 2. The other side plate of the fixed frame 1.1 has a linear array of multiple through holes 1.2. One end of the connecting frame 1.6 is provided with a connecting seat 1.5, and the other end of the connecting frame 1.6 is pinned to the fixed frame 1.1 via a pin. The material handling assembly 2 includes a cylinder 2.1. The lower end of the cylinder 2.1 is open, and the upper end is provided with an end cover 2.5. A rotating shaft 2.3 is provided on the internal axis of the cylinder 2.1. The shaft of the rotating shaft 2.3 is provided with spiral blades 2.4. The end cover 2.5 is provided with a motor 8 and a transmission box 9. The motor 8 is connected to the transmission box 9 via a transmission... The output drive shaft 2.3 rotates; the screen cylinder 4 is coaxially arranged outside the cylinder 2.1, and the screen cylinder 4 is rotatably connected to the cylinder 2.1 through the connecting plate 3. The connecting plate 3 is located on the outer wall of the cylinder 2.1 near the material inlet, and the connecting plate 3 is rotatably connected to the outer wall of the cylinder 2.1 through the bearing 3.2. The screen cylinder 4 and the connecting plate 3 are movably clamped together, and the connecting plate 3 has a discharge port 3.3; the outer wall of the cylinder 2.1 near the end cover 2.5 has a discharge trough 2.6; the other output end of the transmission box 9 drives the transmission rod 7 to rotate through the coupling. The rod body of the transmission rod 7 is provided with rollers 5 for driving the screen cylinder 4 to rotate, and the rod body of the transmission rod 7 is also provided with a crushing blade 6 for cutting the soil in the discharge trough 2.6. The discharge trough 2.6 has a cutting groove 2.7 for the crushing blade 6 to pass through;

[0029] It is understandable that the motor 8 outputs power to the transmission box 9, which has two output ends. One output end of the transmission box 9 drives the rotating shaft 2.3 to rotate, and the rotating shaft 2.3 drives the spiral blade 2.4 to rotate. The cylinder 2.1 contacts the soil, and the rotation of the spiral blade 2.4 realizes the excavation and material extraction of the soil, which is then discharged through the discharge chute 2.6. The other output end of the transmission box 9 drives the transmission rod 7 to rotate, and the transmission rod 7 drives the crushing blade 6 and roller 5 on it to rotate. When the crushing blade 6 rotates, it can enter the discharge chute 2.6 through the cutting groove 2.7 and cut and crush the soil in the discharge chute 2.6. The crushed soil enters the screen cylinder 4, and the roller 5 drives the screen cylinder 4 to rotate.

[0030] like Figure 6 As shown, it should be noted that the screen cylinder 4 is in an inclined state during use. The screen cylinder 4 rotates to screen the soil. Through the screening action of the screen cylinder 4, the fine soil is screened out through the small holes of the screen cylinder 4, while large, unbreakable debris, such as tree roots and stones, is discharged through the discharge port 3.3. This can remove the debris from the soil, thereby reducing the content of gravel and impurities in the soil and improving the soil's arability. Soil extraction, crushing and screening operations can be carried out simultaneously with a single power source. The structure is simple and ingenious, solving the drawbacks of complex structure and high cost when multiple power sources are used separately in traditional operations. It has the advantages of simple structure, convenient operation and high efficiency, and is suitable for crushing and screening operations in land remediation.

[0031] Specifically, such as Figure 3 As shown, the transmission box 9 includes a housing 9.1. Inside the housing 9.1, two bevel gears 9.2 and 9.3 are rotatably connected. The two bevel gears 9.2 are opposite to each other and spaced apart. The bevel gears 9.3 mesh with both bevel gears 9.2. The output shaft of the motor 8 is connected to one of the bevel gears 9.2, the other bevel gear 9.2 is connected to the rotating shaft 2.3, and the bevel gears 9.3 are connected to the transmission rod 7. The motor 8 drives one bevel gear 9.2 to rotate, which in turn drives the bevel gears 9.3 to rotate. The rotation of the bevel gears 9.3 then drives the other bevel gear 9.2 to rotate. That is, the transmission box 9 has one input end and two output ends.

[0032] Agricultural machinery is connected by connecting part 1, that is, connecting seat 1.5 is connected to agricultural machinery, which can move around, making land reclamation more efficient and wider in scope of use. Connecting frame 1.6 is connected to the through hole 1.2 of fixed frame 1.1 by pin shaft. The height of material picking component 2 can be adjusted according to needs to achieve material picking operations at different depths. That is, during the land reclamation process, the thickness of crushed and screened soil can be adjusted to comprehensively improve soil texture.

[0033] It should be noted that the connecting plate 3 is set on the outer wall of the cylinder 2.1, and the distance between the connecting plate 3 and the lower opening of the cylinder 2.1 is 40-60cm. That is, when the lower opening of the cylinder 2.1 enters the soil, the connecting plate 3 will not block it, leaving enough distance for soil extraction. The connecting plate 3 is rotatably connected to the outer wall of the cylinder 2.1 through the bearing 3.2.

[0034] Example 2: Unlike Example 1, the connecting component 1 also includes a hydraulic cylinder 1.4. The cylinder body end of the hydraulic cylinder 1.4 is hinged to the connecting frame 1.6. The telescopic end of the hydraulic cylinder 1.4 is pinned to the fixed frame 1.1 through the ear seat 1.3 and the pin shaft. The pin shaft passes through the ear seat 1.3 and the through hole 1.2. The telescopic end of the hydraulic cylinder 1.4 is connected to the through hole 1.2 through the ear seat 1.3 and the pin shaft for easy connection. The swing angle of the fixed frame 1.1 is changed by the hydraulic cylinder 1.4, thereby adjusting the tilt angle of the material picking component 2 and the screen cylinder 4, and adjusting the screening effect of the screen cylinder 4.

[0035] Example 3: As Figure 4 As shown, unlike embodiment 1, the screen cylinder 4 is movably clamped to the connecting plate 3. The outer edge of the connecting plate 3 is provided with an annular clamping plate. The annular clamping plate is provided with an annular groove 3.1 for the screen cylinder 4 to be inserted. The outer wall of the annular clamping plate is threaded with multiple locking bolts 3.4 for locking the screen cylinder 4, which facilitates the hidden rotation and fixation of the screen cylinder 4, facilitates later maintenance, and also facilitates the replacement of screen cylinders 4 with different mesh sizes according to actual needs.

[0036] Furthermore, such as Figure 3As shown, the roller 5 is provided with a groove that fits the end of the screen cylinder 4. The roller 5 is movably mounted on the transmission rod 7. The transmission rod 7 is threaded with two locking nuts 5.1, which are located at both ends of the roller 5, for easy installation and disassembly.

[0037] Example 4: Figure 3 As shown, unlike Embodiment 1, the crusher 6 is provided with multiple circular arrays arranged around the axis of the transmission rod 7, and the rod body of the transmission rod 7 is also provided with a fixing plate 6.1. The crusher 6 is connected to the fixing plate 6.1 by a bolt and nut assembly, which facilitates the installation and replacement of the crusher 6.

[0038] Furthermore, such as Figure 2 As shown, the cylinder 2.1 and the spiral blades 2.4 form a spiral hopper. The spiral hopper is equipped with multiple blades 2.2 arranged in a spiral shape. The cutting edges of the blades 2.2 face the spirally rising soil. When the spiral blades 2.4 rotate and excavate to retrieve material, the soil rises in a spiral shape and is cut by the blades 2.2 to achieve soil crushing pretreatment.

[0039] In addition, the end cover 2.5 is connected to the cylinder 2.1 by bolts. The cover plate 2.5 is removable. After the cover plate 2.5 is removed, the motor 8 and the transmission box 9 can be separated, which facilitates the disassembly and separation of the screen cylinder 4 and makes it convenient for later maintenance.

[0040] The parts of this invention not described in detail are prior art. It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to encompass all changes that fall within the meaning and scope of equivalents in the content of this invention.

Claims

1. A crushing and screening device for land reclamation, characterized by: Including connecting piece (1), take material subassembly (2) and screen cylinder (4), connecting piece (1) including fixed frame (1.1) and connecting frame (1.6), the side plate of fixed frame (1.1) is fixedly connected with take material subassembly (2), the plate body linear array of the other side plate of fixed frame (1.1) has multiple through holes (1.2), one end of connecting frame (1.6) is equipped with connecting seat (1.5), the other end of connecting frame (1.6) is connected with fixed frame (1.1) through pin shaft, take material subassembly (2) including cylinder body (2.1), the lower end opening of cylinder body (2.1), the upper end is equipped with end cover (2.5), the inside axis of cylinder body (2.1) is equipped with rotating shaft (2.3), the shaft body of rotating shaft (2.3) is equipped with spiral blade (2.4), end cover (2.5) is equipped with motor (8) and transmission box (9), motor (8) is driven rotating shaft (2.3) rotation through the output end of transmission box (9), screen cylinder (4) is rotatably connected with cylinder body (2.1) through connecting disc (3), connecting disc (3) is opened and has blanking hole (3.3), the outer wall of cylinder body (2.1) is equipped with discharge chute (2.6) near end cover (2.5), the other output end of transmission box (9) is driven transmission rod (7) rotation through shaft coupling, the rod body of transmission rod (7) is equipped with the gyro wheel (5) of with screen cylinder (4) adaptation, the rod body of transmission rod (7) is still equipped with the broken knife (6) for cutting the soil in discharge chute (2.6), discharge chute (2.6) is equipped with the cutting groove (2.7) for the broken knife (6) to pass through.

2. The crushing and screening device for land reclamation according to claim 1, characterized in that: Connecting piece (1) still includes hydraulic cylinder (1.4), the cylinder body end of hydraulic cylinder (1.4) is hinged with connecting frame (1.6), the telescopic end of hydraulic cylinder (1.4) is connected with fixed frame (1.1) through ear seat (1.3), pin shaft and pin joint, pin shaft passes through ear seat (1.3) and through hole (1.2), fixed frame (1.1) is fixedly connected with the cylinder body (2.1) of take material subassembly (2).

3. The crushing and screening device for land reclamation according to claim 1, characterized in that: Transmission box (9) including box body (9.1), two bevel gears one (9.2) and bevel gear two (9.3) are rotatably connected in box body (9.1), two bevel gears one (9.2) are oppositely and interval arranged, bevel gear two (9.3) is all engaged transmission with two bevel gears one (9.2), the output shaft of motor (8) is connected with one of bevel gears one (9.2) correspondingly, another bevel gear one (9.2) is connected with rotating shaft (2.3) correspondingly, bevel gear two (9.3) is connected with transmission rod (7) correspondingly.

4. The crushing and screening device for land reclamation according to claim 1, characterized in that: Connecting disc (3) is arranged in the outer wall of cylinder body (2.1), and the distance between connecting disc (3) and the lower end opening of cylinder body (2.1) is 40-60 cm, connecting disc (3) is rotatably connected with the outer wall of cylinder body (2.1) through bearing (3.2).

5. The crushing and screening device for land reclamation according to claim 1, characterized in that: Screen cylinder (4) is movably clamped with connecting disc (3), the outer edge of connecting disc (3) is provided with an annular clamping plate, the annular clamping plate is provided with an annular groove (3.1) for inserting the screen cylinder (4), and a plurality of locking bolts (3.4) are threadedly connected to the outer wall of the annular clamping plate for locking the screen cylinder (4).

6. The crushing and screening device for land reclamation according to claim 1, characterized in that: The roller (5) is provided with a wheel groove matched with the end of the screen cylinder (4), the roller (5) is movably sleeved on the transmission rod (7), the rod body of the transmission rod (7) is threadedly connected with two locking nuts (5.1), and the locking nuts (5.1) are located at two ends of the roller (5) respectively.

7. The crushing and screening device for land reclamation according to claim 1, characterized in that: The breaking blade (6) is provided with a plurality of circular arrays arranged around the axis of the transmission rod (7), the rod body of the transmission rod (7) is further provided with a fixing disc (6.1), and the breaking blade (6) is connected with the fixing disc (6.1) through a bolt-nut set.

8. The crushing and screening device for land reclamation according to claim 1, characterized in that: The cylinder body (2.1) and the spiral blade (2.4) form a spiral material bin, a plurality of blades (2.2) arranged in a spiral manner are arranged in the spiral material bin, and the cutting edges of the blades (2.2) are directed to the soil spirally rising.

9. The crushing and screening device for land reclamation according to claim 1, characterized in that: The end cover (2.5) is connected with the cylinder body (2.1) through bolts.

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