Sand collecting device and sand dredger
By designing the cutting and driving components of the sand collection device, the clogging problem of the sand collection device on complex riverbeds was solved, the sand concentration of the mortar and the sand suction efficiency were improved, the adaptability was enhanced, and the service life was extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN XINQIBIN TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2026-04-14
- Publication Date
- 2026-06-12
AI Technical Summary
Existing sand collection devices are prone to clogging when dealing with complex riverbeds, making it difficult to increase sand concentration. They also have poor adaptability and cannot effectively handle riverbeds with inconsistent or uneven upper sand and gravel layers.
Design a sand collection device, including a sand suction pipe, a cutting component and a driving component. The cutting component consists of a cylinder, an axial reamer and a circumferential reamer. The driving component drives the cylinder to rotate through a driving component and a transmission mechanism to ensure sealing. The cutting component can break up sand and gravel and increase the sand concentration.
It increases the sand concentration of the mortar, enhances the sand suction efficiency, is suitable for deep-water operations, extends the service life of the equipment, and improves the sand dredging efficiency of the dredger.
Smart Images
Figure CN122190327A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sand mining equipment technology, and in particular to a sand collection device and a sand dredger. Background Technology
[0002] A sand dredger is a combined device that uses a sand suction pump as its main component for sand extraction. The pump's suction force draws up river sand or sludge from underwater, which is then discharged to a designated location via an upper discharge pipe. The dredger mainly consists of a hull, a conveying system, and a sand collection device. During sand dredging, the collection device needs to penetrate into the sand layer to ensure the sand concentration. However, the sand layer contains rocks, aquatic plants, and tree roots, which can easily clog the pipes. The collected slurry also contains a significant amount of foreign matter, potentially causing the sand suction pump to shut down. Existing sand collection devices suffer from limited crushing methods, low efficiency, and limited applicability to specific working conditions. They cannot solve the problem of cutting and crushing difficult-to-cut and difficult-to-crush special sand and gravel on the riverbed, nor can they handle complex riverbed conditions. They are also poorly suited for riverbeds with uneven or irregularly shaped sand and gravel layers.
[0003] Therefore, a sand collection device and a sand dredger are needed to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide a sand collection device to solve the problems of insufficient sand concentration and difficulty in dealing with complex riverbed conditions in related technologies.
[0005] On one hand, the present invention provides a sand collecting device, the sand collecting device comprising: Sand suction pipe; A cutting assembly, comprising a cylinder, an axial reamer, and a circumferential reamer, wherein the cylinder is provided with a sand passage hole, a plurality of circumferential reamers are spaced apart circumferentially on the periphery of the cylinder, and a plurality of axial reamers are provided at one end of the cylinder away from the sand suction pipe; The driving assembly includes a driving component, a transmission mechanism, a first sealing structure, and a second sealing structure. The driving component is disposed on the sand suction pipe, and the transmission mechanism is connected between the sand suction pipe and the cylinder body so that the driving component can drive the cylinder body to rotate. The first sealing structure is sealed between the transmission mechanism and the sand suction pipe, and the second sealing structure is sealed between the transmission mechanism and the cylinder body.
[0006] As an optional technical solution, the transmission mechanism includes a first transmission component and a second transmission component. The first transmission component is connected to the output end of the drive component, and the second transmission component is fixedly connected to the cylinder. The first transmission component and the second transmission component are connected in a transmission manner. The transmission mechanism further includes a fixed ring and a sealing ring. The fixed ring abuts against the sand suction pipe, and the sealing ring is sandwiched between the second transmission component and the fixed ring.
[0007] As an optional technical solution, the transmission mechanism further includes a limiting elastic element, which is clamped between the fixed block and the sealing ring.
[0008] As an optional technical solution, the drive assembly further includes a drive box and a transmission box. The drive box is connected to the sand suction pipe. The drive box has a first chamber. The drive component and the first transmission component are both disposed in the first chamber. The transmission box is disposed on the outer periphery of the fixed block, the sealing ring, and the second transmission component. The outer peripheral wall of the fixed block, the outer peripheral wall of the sealing ring, the outer peripheral wall of the second transmission component, and the inner wall of the drive box enclose a second chamber. The first chamber and the second chamber communicate to form a low-pressure chamber.
[0009] As an optional technical solution, the first sealing structure includes a first sealing gasket, the transmission box and the fixing ring together form an assembly, and the first sealing gasket is sandwiched between the assembly and the sand suction pipe.
[0010] As an optional technical solution, the first transmission component is a first gear, and the second transmission component is a second gear; And / or, the drive unit includes a deep-water hydraulic motor.
[0011] As an optional technical solution, a first sealing element is provided between the fixing block and the sealing ring; And / or, a second seal is provided between the sealing ring and the second transmission member; And / or, a third sealing element is provided between the transmission box and the outer wall of the cylinder.
[0012] As an optional technical solution, the sand suction pipe includes a first pipe section and a second pipe section, the first pipe section and the second pipe section are arranged at an angle, and the first pipe section is connected to the cylinder.
[0013] The sand collection device provided by this invention has at least the following beneficial effects: The sand collection device provided by the present invention includes a sand suction pipe, a cutting assembly, and a driving assembly. The cutting assembly includes a cylinder, an axial reamer, and a circumferential reamer. The cylinder is provided with a sand passage hole. Multiple circumferential reamers are arranged at intervals along the circumference of the cylinder. At least some of the axial reamers are arranged at the end of the cylinder away from the sand suction pipe. The driving assembly includes a driving component, a transmission mechanism, a first sealing structure, and a second sealing structure. The driving component is disposed in the sand suction pipe. The transmission mechanism is connected between the sand suction pipe and the cylinder so that the driving component can drive the cylinder to rotate. The first sealing structure is sealed between the transmission mechanism and the sand suction pipe, and the second sealing structure is sealed between the transmission mechanism and the cylinder. When this sand collection device is in operation, the drive unit drives the cylinder to rotate through the transmission mechanism, causing multiple circumferential reamers located around the periphery of the cylinder and multiple axial reamers located at the end of the cylinder away from the sand suction pipe to rotate synchronously. The rotation of the axial and circumferential reamers can break up the sand and gravel, allowing the sand suction device to penetrate deeper into the sand and gravel layer, increasing the sand concentration of the slurry, and thus improving the sand suction efficiency. The drive unit can drive the cutting component to rotate through the transmission mechanism, and the first and second sealing structures can ensure the seal between the drive unit, the transmission mechanism, and the cutting component, thus making it suitable for sand collection operations in deeper water and extending its service life.
[0014] On the other hand, the present invention provides a sand dredger, including a hull, a sand conveying device, an adjusting device, a hydraulic system, and a sand collecting device as described in any of the above embodiments. The sand conveying device, the adjusting device, and the hydraulic system are all disposed on the hull. The sand conveying device is connected to a sand suction pipe for outputting the sand collected by the sand suction pipe. The adjusting device is connected to the sand suction pipe for adjusting the angle of the sand suction pipe. The hydraulic system is connected to a drive component for providing power to the drive component.
[0015] As an optional technical solution, the adjusting device includes a steel wire rope and a hydraulic motor. The output end of the hydraulic motor is connected to the steel wire rope, the steel wire rope is connected to the sand suction pipe, and the hydraulic motor is connected to the hydraulic system.
[0016] The sand dredger provided by this invention has at least the following beneficial effects: The sand dredger provided by this invention, by being equipped with the aforementioned sand collection device, can penetrate deep into the sand and gravel layer, thereby increasing the sand concentration of the sand and gravel, and thus improving the sand collection efficiency and ensuring the sand dredging efficiency of the sand dredger. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the sand collection device in an embodiment of the present invention; Figure 2 This is a cross-sectional view of the sand collection device in an embodiment of the present invention; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 for Figure 2 A magnified view of a section at point B in the middle; Figure 5 This is a schematic diagram of the meshing of the first and second gears in the sand collecting device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a portion of the structure of the sand collecting device cylinder in an embodiment of the present invention; Figure 7 This is a partial schematic diagram of the hydraulic pipeline of the driving component of the sand collecting device in an embodiment of the present invention; Figure 8 This is a schematic diagram of a portion of the drive mechanism of the sand collection device in an embodiment of the present invention; Figure 9 This is a schematic diagram of the hydraulic pipeline interface of a portion of the drive mechanism of the sand collection device in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the power valve block of the sand collection device in an embodiment of the present invention; Figure 11 This is a cross-sectional view of the power valve block of the sand collection device in an embodiment of the present invention; Figure 12 This is a schematic diagram of the connection between the jet valve seat and the jet cone tube of the sand collection device in an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the sand dredger in an embodiment of the present invention; Figure 14 This is a schematic diagram of a portion of the structure of a sand dredger in an embodiment of the present invention; Figure 15 This is a schematic diagram of sand dredging by a sand dredger in an embodiment of the present invention; Figure 16 This is a schematic diagram of the hydraulic system of the sand dredger in an embodiment of the present invention.
[0018] In the picture: 1. Sand collection device; 2. Hull; 3. Sand conveying device; 301. Sand conveying pipe; 302. Sand pump; 303. Sand discharge pipe; 4. Adjustment device; 401. Wire rope; 402. Adjustment hydraulic motor; 5. Hydraulic system; 501. Variable displacement piston pump; 502. Hydraulic oil source; 503. Support column; 10. Sand suction pipe; 11. First pipe section; 12. Second pipe section; 20. Cutting assembly; 21. Cylinder; 211. First hole; 212. Second hole; 213. Mounting base; 22. Axial reamer; 23. Circumferential reamer; 24. Helical reamer; 30. Drive assembly; 31. Drive component; 311. Pressure regulating valve; 312. Power valve block; 3121. Main oil inlet pipe; 3122. Main oil return pipe; 3123. Oil reservoir; 3124. Pressure regulating valve mounting port; 3125. Main oil inlet; 3126. Main oil return port; 313. Deep-water hydraulic motor; 3131. Hydraulic motor inlet pipe; 3132. Hydraulic motor return pipe; 3133. Protective seat; 314. Jet valve seat; 315. Jet cone tube; 316. Pressure Table; 321, First Gear; 322, Second Gear; 33, First Sealing Gasket; 34, Second Sealing Structure; 35, Retaining Ring; 36, Sealing Ring; 37, Limiting Elastic Component; 38, Drive Box; 381, First Chamber; 39, Transmission Box; 391, Second Chamber; 392, Body; 393, Sealing Flange; 3010, First Sealing Component; 3011, Second Sealing Component; 3012, Third Sealing Component; 3013, Needle Roller Bearing; 3014, Sealing Stationary Ring. Detailed Implementation
[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0023] like Figures 1 to 12 As shown, this embodiment provides a sand collecting device 1, which includes a sand suction pipe 10, a cutting assembly 20, and a driving assembly 30. The cutting assembly 20 includes a cylinder 21, an axial reamer 22, and a circumferential reamer 23. The cylinder 21 is provided with a sand passage hole. A plurality of circumferential reamers 23 are arranged circumferentially at intervals around the periphery of the cylinder 21. At least a portion of the axial reamers 22 are arranged at the end of the cylinder 21 away from the sand suction pipe 10. The driving assembly 30 includes a driving member 31, a transmission mechanism, a first sealing structure, and a second sealing structure 34. The driving member 31 is disposed on the sand suction pipe 10. The transmission mechanism is connected between the sand suction pipe 10 and the cylinder 21 so that the driving member 31 can drive the cylinder 21 to rotate. The first sealing structure is sealed between the transmission mechanism and the sand suction pipe 10, and the second sealing structure 34 is sealed between the transmission mechanism and the cylinder 21.
[0024] Specifically, in this embodiment, the cylinder 21 of the sand collecting device 1 is rotatably connected to the sand suction pipe 10 via the driving component 31. When suctioning sand, the sand suction pipe 10 drives the cylinder 21 to approach the sand layer. When collecting sand, the driving component 31 drives the cylinder 21 to rotate. Multiple circumferential cutters 23 around the cylinder 21 can cut off foreign objects such as branches and weeds. The axial cutter 22 at the end of the cylinder 21 away from the sand suction pipe 10 can excavate the sand layer and interlayer, and even remove tree roots and break up stones, thereby ensuring the smoothness of sand collection. Furthermore, the axial cutter 22 at the end of the cylinder 21 away from the sand suction pipe 10 can also help the sand collecting device 1 enter a deeper sand layer, further increasing the sand concentration of the mortar and improving the sand collection efficiency. The drive unit 31 is connected to the sand suction pipe 10 through the transmission mechanism, and is sealed between the transmission mechanism and the sand suction pipe 10 by setting a first sealing structure, and sealed between the transmission mechanism and the cylinder 21 by setting a second sealing structure 34. This can improve the overall sealing effect of the sand collection device 1, thereby making the sand collection device 1 suitable for use in deeper waters and improving the versatility of the sand collection device 1.
[0025] Optionally, such as Figure 6 As shown, a mounting base 213 is provided on the cylinder 21. The mounting base 213 is used to install the axial reamer 22 and the circumferential reamer 23, so that the axial reamer 22 and the circumferential reamer 23 can be easily disassembled and assembled after damage, thereby improving the convenience of use, reducing material waste, and lowering maintenance costs.
[0026] Optionally, in this embodiment, the driving component 31 includes a deep-water hydraulic motor 313. The deep-water hydraulic motor 313 is hydraulically driven, thus providing high safety. When the sand collection device 1 is used in a sand dredger, the deep-water hydraulic motor 313 is connected to the hydraulic system 5 of the sand dredger, ensuring the power input of the deep-water hydraulic motor 313. Further optionally, a protective seat 3133 is provided on the outer periphery of the deep-water hydraulic motor 313 to further improve the safety of the deep-water hydraulic motor 313 in use.
[0027] Optionally, in this embodiment, as Figures 7 to 12As shown, the drive unit 31 also includes a pressure regulating valve 311, a power valve block 312, a jet valve seat 314, a jet cone tube 315, and a pressure gauge 316. The hydraulic motor inlet pipe 3131 and the hydraulic motor return pipe 3132 of the deep-water hydraulic motor 313 are both connected to the hydraulic system 5 to provide power to the deep-water hydraulic motor 313. The power valve block 312 has a main oil inlet 3125 and a main oil return port 3126. The main oil inlet 3125 is connected to the hydraulic system 5 through the main oil inlet pipe 3121, and the main oil return port 3126 is connected to the hydraulic system 5 through the main oil return pipe 3122. The power valve block 312 is provided with an oil storage chamber 3123. The hydraulic oil of the hydraulic system 5 enters the oil storage chamber 3123 through the main oil inlet pipe 3121. The oil storage chamber 3123 is provided with an installation port for a pressure regulating valve 311 for installation. The pressure regulating valve 311 can regulate the oil level in the oil storage chamber 3123. The hydraulic oil pressure is reduced to low pressure. The cylinder 21 is equipped with ports A2 and B1, and the power valve block 312 is equipped with ports A1 and B2. The inlet pipe of the cylinder 21 connects to ports A1 and A2, and the return pipe of the cylinder 21 connects to ports B1 and B2. This ensures that the hydraulic oil in the power valve block 312 can connect to the low-pressure chamber of the oil storage chamber 3123 and the sand collection device 1, thereby allowing the low-pressure hydraulic oil to be output to the low-pressure chamber through the jet cone tube 315. This ensures that the hydraulic oil in the low-pressure chamber is higher than the external water pressure, ensuring a good seal. The high-pressure hydraulic oil flows back through the jet valve seat 314 and the jet cone tube 315. The internal tapered space formed by the jet valve seat 314 and the jet cone tube creates a vacuum during the high-pressure oil return process, thus attracting the low-pressure hydraulic oil into the return flow. The low-pressure hydraulic oil return port is equipped with a built-in hydraulic threaded cartridge valve (check valve), so that high-pressure hydraulic oil will not flow out from the low-pressure hydraulic oil return port when the oil circuit pressure is unstable. The specific structure and working principle of the jet cone tube 315 are existing technologies and will not be described in detail here.
[0028] Further optional, such as Figure 9 As shown, in this embodiment, the pressure regulating valve 311 is provided with oil port D1, the power valve block 312 is provided with oil port C1, the jet valve is provided with oil port C2 and oil port D2, the return oil pipe of the power valve block 312 is connected to oil port C1 and oil port C2, and the return oil pipe of the pressure regulating valve 311 is connected to oil port D1 and oil port D2, thereby ensuring the normal operation of the pressure regulating valve 311.
[0029] Alternatively, the pressure of the hydraulic oil in the low-pressure chamber can be set according to the depth of the sand collection device 1 when it is submerged in water. For example, when the water depth is 20 meters, the external pressure is 2 Bar, and the pressure is set to 2.5 Bar. No specific limitation is made here.
[0030] Optionally, in this embodiment, as Figure 4 and Figure 6As shown, one end of the cylinder 21 has an opening that communicates with the sand suction pipe 10. The sand passage holes on the cylinder 21 include first holes 211 and second holes 212. At least two sets of first holes 211 are opened along the circumference of the cylinder 21 on the outer peripheral wall of the cylinder 21. Each set of first holes 211 includes multiple first holes 211 spaced apart along the axial direction. Multiple second holes 212 are evenly opened at the end of the cylinder 21 away from the sand suction pipe 10. By providing the first holes 211 and second holes 212, the inner cavity of the cylinder 21 can be connected to the outside, thereby ensuring that the mortar smoothly enters the sand suction pipe 10. At the same time, it can prevent large stones and foreign objects from entering the sand suction pipe 10, thus playing a certain filtering role and improving the mortar quality. Further optionally, the first hole 211 is an oblong hole and the second hole 212 is a circular hole.
[0031] Optionally, in this embodiment, as Figure 2 and Figure 4 As shown, the axial reamer 22 also includes a spiral reamer 24, which is located in the middle of the end of the cylinder 21 away from the sand suction pipe 10. It can excavate sand layers, interlayers, and even remove tree roots and break stones, thereby increasing the insertion depth of the sand collection device 1 and thus improving the sand collection efficiency.
[0032] Furthermore, such as Figure 2 , Figure 3 and Figure 5 As shown, the transmission mechanism includes a first transmission component and a second transmission component. The first transmission component is connected to the output end of the drive component 31, and the second transmission component is fixedly connected to the cylinder 21. The first transmission component and the second transmission component are connected in a transmission manner. The transmission mechanism also includes a fixed ring 35 and a sealing ring 36. The fixed ring 35 abuts against the sand suction pipe 10, and the sealing ring 36 is sandwiched between the second transmission component and the fixed block 35.
[0033] Specifically, in this embodiment, by providing a fixing ring 35 and a sealing ring 36, the fixing ring 35 abuts against the sand suction pipe 10, and the sealing ring 36 is sandwiched between the second transmission member and the fixing ring 35, the position of the second transmission member can be limited, thereby improving the relative position of the first transmission member and the second transmission member, thus improving the transmission reliability and stability, and improving the safety and reliability of the sand collection operation.
[0034] Optionally, in this embodiment, as Figure 3 As shown, the fixing ring 35 is provided with a first insertion platform, and the sealing ring 36 is provided with a first insertion groove. The first insertion platform and the first insertion groove are inserted and matched. The side of the first insertion platform facing the inner wall of the first insertion groove is provided with a first sealing groove. A first sealing element 3010 is provided in the first sealing groove to seal the gap between the fixing ring 35 and the sealing ring 36, thereby ensuring the sealing effect between the fixing block 35 and the sealing ring 36.
[0035] Alternatively, the first seal 3010 may be an O-ring.
[0036] Optionally, such as Figure 3 As shown, in this embodiment, the sealing ring 36 is provided with a second insertion groove and a second insertion platform, and the second gear 322 is provided with a third insertion platform and a third insertion groove. The second insertion platform is inserted into the third insertion groove, and the third insertion platform is inserted into the second insertion groove. A second sealing element 3011 is provided between the bottom of the second insertion groove and the platform of the third insertion platform, thereby ensuring the sealing performance between the sealing ring 36 and the second transmission element, i.e., the second gear 322, and thus ensuring the sealing performance of the high-pressure chamber.
[0037] Alternatively, the second seal 3011 may be a polytetrafluoroethylene (PTFE) packing. PTFE has excellent corrosion resistance, a wide operating temperature range, a low coefficient of friction, and self-lubricating properties. It also has the advantages of being non-absorbent and non-adhesive, which can ensure the reliability and smoothness of the rotation of the second gear 322.
[0038] Furthermore, such as Figure 3 As shown, the transmission mechanism also includes a limiting elastic element 37, which is sandwiched between the fixed ring 35 and the sealing ring 36.
[0039] Specifically, in this embodiment, the limiting elastic member 37 is sandwiched between the fixed ring 35 and the sealing ring 36. The limiting elastic member 37 can provide a force that moves the fixed ring 35 and the sealing ring 36 away from each other, so that the sealing ring 36 always has a pressing effect on the second transmission member, thereby performing position compensation, which can improve the stability and reliability of the setting position of the sealing ring 36, and make the rotational mating surface of the fixed ring 35 and the second transmission member tightly fitted, thereby improving the reliability and stability of the transmission between the first transmission member and the second transmission member.
[0040] Optionally, in this embodiment, the limiting elastic element 37 is a compression spring. Multiple compression springs are provided and spaced apart along the circumference of the cylinder 21. This can enhance the wear compensation effect between the sealing ring 36 and the fixed ring 35. After the sealing ring 36 is worn, the rotating sealing mating surface between the fixed ring 35 and the second gear 322 can always be guaranteed to have good sealing performance.
[0041] Optionally, in this embodiment, as Figure 5As shown, the first transmission component is the first gear 321, and the second transmission component is the second gear 322. The first gear 321 is connected to the output end of the drive component 31, and the first gear 321 meshes with the second gear 322. The second gear 322 is fixedly connected to the cylinder 21. When the drive component 31 drives the first gear 321 to rotate, the second gear 322 rotates accordingly, thereby driving the cylinder 21 to rotate, which in turn drives the axial reamer 22 and the circumferential reamer 23 to rotate. Thus, the multiple circumferential reamers 23 can cut off foreign objects such as branches and weeds. The axial reamer 22 at the end of the cylinder 21 away from the sand suction pipe 10 can excavate sand layers and interlayers, and even remove tree roots and break up stones, thereby ensuring the smooth collection of sand.
[0042] Optionally, in this embodiment, as Figure 3 As shown, the output end of the deep-water hydraulic motor 313 includes an output shaft with a threaded hole along the axial direction. A first gear 321 is sleeved on the output shaft, and a washer is provided at the end of the first gear 321 away from the deep-water hydraulic motor 313. The locking bolt passes through the washer and is threadedly connected to the threaded hole, thereby connecting the first gear 321 to the output shaft. Optionally, the output shaft and the first gear 321 are connected by a key to ensure the synchronicity of the rotation of the output shaft and the first gear 321 and to ensure the effectiveness of power transmission.
[0043] Further optional, such as Figure 5 As shown, both the first gear 321 and the second gear 322 are helical gears. Helical gears have the advantages of good meshing performance, large overlap ratio and compact structure, which can improve transmission stability.
[0044] Furthermore, such as Figure 2 , Figure 3 and Figure 8 As shown, the drive assembly 30 also includes a drive box 38 and a transmission box 39. The drive box 38 is connected to the sand suction pipe 10. The drive box 38 has a first chamber 381. The drive component 31 and the first transmission component are both disposed in the first chamber 381. The transmission box 39 is disposed on the outer periphery of the fixing block 35, the sealing ring 36, and the second transmission component. The outer peripheral wall of the fixing block 35, the outer peripheral wall of the sealing ring 36, the outer peripheral wall of the second transmission component, and the inner wall of the drive box 38 enclose the second chamber 391. The first chamber 381 and the second chamber 391 communicate to form a low-pressure chamber.
[0045] Specifically, in this embodiment, such as Figure 2 and Figure 3As shown, a drive box 38 is provided, and the drive component 31 and the first gear 321 are both located in the first chamber 381. The transmission box 39 is located on the outer periphery of the fixed ring 35, the sealing ring 36, and the second gear 322. The outer peripheral walls of the fixed ring 35, the sealing ring 36, and the second transmission component, together with the inner wall of the drive box 38, form a second chamber 391. The first chamber 381 and the second chamber 391 are connected to form a low-pressure chamber. The low-pressure chamber as a whole forms a labyrinth mechanical seal, which improves the sealing effect. Furthermore, the low-pressure chamber is connected to the hydraulic system 5 of the sand dredger. When collecting sand, the hydraulic system 5 inputs hydraulic oil into the low-pressure chamber and ensures that the pressure of the hydraulic oil is higher than that of the water, which can prevent water from entering the low-pressure chamber, thereby ensuring the transmission stability and reliability of the first gear 321 and the second gear 322.
[0046] Optionally, in this embodiment, as Figure 2 and Figure 3 As shown, the transmission box 39 includes a body 392 and a sealing flange 393. One end of the body 392 is connected to the sand suction pipe 10 by bolts, and the other end is connected to the cylinder 21 by the sealing flange 393. Graphite packing is also provided between the body 392 and the cylinder 21, which can seal the gap between the body 392 and the cylinder 21. Because graphite packing has good temperature resistance, pressure resistance, self-lubrication and low coefficient of friction, and strong chemical stability, it can ensure the smooth rotation of the cylinder 21 and extend its service life.
[0047] Further optional, such as Figure 2 and Figure 3 As shown, a sealing stationary ring 3014 is also provided between the sealing flange 393 and the body 392 to further improve the sealing performance.
[0048] Optionally, a bearing is also provided between the cylinder 21 and the body 392 to ensure smooth rotation of the cylinder 21. Further optionally, the bearing is a needle roller bearing 3013.
[0049] Furthermore, such as Figure 2 and Figure 3 As shown, the first sealing structure includes a first sealing gasket 33, a transmission box 39 and a fixing block 35 forming an assembly, with the first sealing gasket 33 sandwiched between the assembly and the sand suction pipe 10.
[0050] Specifically, in this embodiment, the first sealing gasket 33 is a rubber sealing gasket, which is sandwiched between the body 392 and the fixing ring 35 of the transmission box 39 and the sand suction pipe 10, thereby ensuring good sealing performance between the body 392 and the fixing ring 35 of the transmission box 39 and the sand suction pipe 10, and thus ensuring the effectiveness of sand collection.
[0051] Furthermore, such as Figure 14As shown, the sand suction pipe 10 includes a first pipe section 11 and a second pipe section 12. The first pipe section 11 and the second pipe section 12 are arranged at an angle, and the first pipe section 11 is connected to the cylinder 21.
[0052] Specifically, in this embodiment, the first pipe section 11 is connected to the cylinder 21, and the first pipe section 11 and the second pipe section 12 are connected. This arrangement can increase the depth of the sand collecting device 1, thereby improving the sand collecting efficiency.
[0053] like Figures 13 to 16 As shown, this embodiment also provides a sand dredger, including a hull 2, a sand conveying device 3, an adjusting device 4, a hydraulic system 5, and the sand collecting device 1 described above. The sand conveying device 3, the adjusting device 4, and the hydraulic system 5 are all located on the hull 2. The sand conveying device 3 is connected to the sand suction pipe 10 and is used to output the slurry collected by the sand suction pipe 10. The adjusting device 4 is connected to the sand suction pipe 10 and is used to adjust the extension and angle of the sand suction pipe 10. The hydraulic system 5 is connected to the drive component 31 and is used to provide power to the drive component 31. By incorporating the aforementioned sand collecting device 1, the sand dredger can penetrate deep into the sand and gravel layer, increasing the sand concentration of the sand and gravel, thereby improving the sand collecting efficiency and ensuring the sand dredging efficiency of the dredger.
[0054] Specifically, in this embodiment, such as Figure 16 As shown, the hydraulic system 5 includes a hydraulic oil source 502 and a hydraulic pump. The hydraulic oil source 502 is connected to the hydraulic pump, and the main inlet pipe 3121 and the main return pipe 3122 are both connected to the hydraulic pump, thereby providing high-pressure hydraulic oil to the deep-water hydraulic motor 313. Optionally, the hydraulic oil source 502 is connected to the hull 2 via several support columns 503 to ensure the stability of the hydraulic system 5.
[0055] Optionally, in this embodiment, the hydraulic pump is a variable displacement piston pump 501. Furthermore, in this embodiment, the variable displacement piston pump 501 employs constant power control, allowing it to automatically adjust pressure and speed according to external load conditions during operation, thereby reducing the difficulty of manual labor.
[0056] Furthermore, such as Figure 14 As shown, the regulating device 4 includes a wire rope 401 and a regulating hydraulic motor 402. The output end of the regulating hydraulic motor 402 is connected to the wire rope 401, and the wire rope 401 is connected to the sand suction pipe 10. The hydraulic system 5 includes a hydraulic oil source 502 and a hydraulic pump. The drive component 31 and the hydraulic motor are both connected to the hydraulic pump.
[0057] Specifically, in this embodiment, the adjusting device 4 includes a wire rope 401 and an adjusting hydraulic motor 402. The output end of the adjusting hydraulic motor 402 is connected to the wire rope 401, the wire rope 401 is connected to the sand suction pipe 10, and the adjusting hydraulic motor 402 is connected to the hydraulic system 5.
[0058] Optionally, in this embodiment, the sand dredger also includes an electrical component, which mainly includes a PLC, control panel, alarm, and electrical box. Through programming, it offers both automated and manual operation modes. In automated operation, the program monitors the current of the motors of the slurry pump 302 and the variable displacement piston pump 501 to determine if the entire system is operating normally. If an abnormal operating state occurs, the current fluctuation will trigger the alarm, alerting manual intervention.
[0059] Optionally, in this embodiment, as Figure 14 As shown, the sand conveying device 3 includes a sand conveying pipe 301, a mortar pump 302, and a sand discharge pipe 303. The sand conveying pipe 301 and the sand suction pipe 10 are connected by a flexible connection structure. The mortar pump 302 is installed on the sand conveying pipe 301 to drive the mortar flow, and the sand discharge pipe 303 is used to discharge the mortar.
[0060] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this invention.
Claims
1. A sand collecting device, characterized in that, include: Suction pipe (10); The cutting assembly (20) includes a cylinder (21), an axial reamer (22), and a circumferential reamer (23). The cylinder (21) is provided with a sand passage hole. A plurality of circumferential reamers (23) are arranged circumferentially at intervals around the circumference of the cylinder (21). A plurality of axial reamers (22) are arranged at one end of the cylinder (21) away from the sand suction pipe (10). The drive assembly (30) includes a drive component (31), a transmission mechanism, a first sealing structure, and a second sealing structure (34). The drive component (31) is disposed on the sand suction pipe (10). The transmission mechanism is connected between the sand suction pipe (10) and the cylinder (21) so that the drive component (31) can drive the cylinder (21) to rotate. The first sealing structure is sealed between the transmission mechanism and the sand suction pipe (10), and the second sealing structure (34) is sealed between the transmission mechanism and the cylinder (21).
2. The sand collecting device according to claim 1, characterized in that, The transmission mechanism includes a first transmission component and a second transmission component. The first transmission component is connected to the output end of the drive component (31), and the second transmission component is fixedly connected to the cylinder (21). The first transmission component and the second transmission component are connected in a transmission manner. The transmission mechanism further includes a fixed ring (35) and a sealing ring (36). The fixed ring (35) abuts against the sand suction pipe (10), and the sealing ring (36) is sandwiched between the second transmission member and the fixed ring (35).
3. The sand collecting device according to claim 2, characterized in that, The transmission mechanism further includes a limiting elastic element (37), which is sandwiched between the fixing ring (35) and the sealing ring (36).
4. The sand collecting device according to claim 2, characterized in that, The drive assembly (30) further includes a drive box (38) and a transmission box (39). The drive box (38) is connected to the sand suction pipe (10). The drive box (38) has a first chamber (381). The drive member (31) and the first transmission member are both disposed in the first chamber (381). The transmission box (39) is disposed on the outer periphery of the fixing ring (35), the sealing ring (36) and the second transmission member. The outer peripheral wall of the fixing ring (35), the outer peripheral wall of the sealing ring (36), the outer peripheral wall of the second transmission member and the inner wall of the drive box (38) surround to form a second chamber (391). The first chamber (381) and the second chamber (391) communicate to form a low-pressure chamber.
5. The sand collecting device according to claim 2, characterized in that, The first sealing structure includes a first sealing gasket (33), the transmission box (39) and the fixing ring (35) together form an assembly, and the first sealing gasket (33) is sandwiched between the assembly and the sand suction pipe (10).
6. The sand collecting device according to claim 2, characterized in that, The first transmission component is a first gear (321), and the second transmission component is a second gear (322). And / or, the drive unit (31) includes a deep-water hydraulic motor (313).
7. The sand collecting device according to claim 2, characterized in that, A first sealing element (3010) is provided between the fixing ring (35) and the sealing ring (36). And / or, a second seal (3011) is provided between the sealing ring (36) and the second transmission member. And / or, a third seal (3012) is provided between the outer wall of the transmission box (39) and the cylinder (21).
8. The sand collecting device according to any one of claims 1-7, characterized in that, The sand suction pipe (10) includes a first pipe section (11) and a second pipe section (12), the first pipe section (11) and the second pipe section (12) are arranged at an angle, and the first pipe section (11) is connected to the cylinder (21).
9. A sand dredger, characterized in that, The device includes a hull (2), a sand conveying device (3), an adjusting device (4), a hydraulic system (5), and a sand collecting device as described in any one of claims 1-8. The sand conveying device (3), the adjusting device (4), and the hydraulic system (5) are all located on the hull (2). The sand conveying device (3) is connected to the sand suction pipe (10) and is used to output the slurry collected by the sand suction pipe (10). The adjusting device (4) is connected to the sand suction pipe (10) and is used to adjust the angle of the sand suction pipe (10). The hydraulic system (5) is connected to the driving component (31) and is used to provide power to the driving component (31).
10. The sand dredger according to claim 9, characterized in that, The regulating device (4) includes a wire rope (401) and a hydraulic motor. The output end of the hydraulic motor is connected to the wire rope (401), the wire rope (401) is connected to the sand suction pipe (10), and the hydraulic motor is connected to the hydraulic system (5).