A detachable cutter head structure for channel dredging

Abstract

The utility model is suitable for the technical field of waterway dredging and provides a detachable reamer head structure for waterway dredging, which comprises a shell, an installation rod is arranged in the mounting hole of the shell, one end of the installation rod is fixedly installed with a reamer head body for waterway dredging, a rotating shaft is rotatably installed on the shell, one end of the rotating shaft is fixedly installed with a spline shaft, a spline sleeve is arranged on the spline shaft, one side of the spline sleeve is fixedly connected with one end of the installation rod, a protective shell is fixedly installed on the outer wall of the shell, an inner wall of the protective shell is fixedly installed with a driving motor, and an output shaft of the driving motor is fixedly connected with one end of the rotating shaft. The detachable reamer head structure for waterway dredging provided by the scheme solves the technical problem that the reamer head for waterway dredging needs to be manually removed by workers for a large number of bolts during maintenance or replacement, which is time-consuming, labor-consuming and labor-intensive.

Description

Technical Field

[0001] This utility model belongs to the field of waterway dredging technology, and in particular relates to a detachable cutter head structure for waterway dredging. Background Technology

[0002] Channel dredging is the operation of removing underwater sediment from waterways using dredgers and other tools. Its purpose is to develop and maintain waterway dimensions to ensure navigational capacity. The cutter head used in channel dredging is the core working device of a cutter suction dredger, essentially a "giant drill bit" or "rotating cutter" for underwater operations. It is directly responsible for cutting, breaking, and loosening the sediment, clay, gravel, and even soft rock at the bottom of the waterway, mixing it with water to form slurry, thus preparing for subsequent pumping and discharge.

[0003] However, existing cutter heads are usually fixed to the drive unit with a large number of bolts. When maintaining the cutter head or replacing it with another size, workers need to use tools to remove the bolts one by one, which is time-consuming, labor-intensive and labor-intensive. Utility Model Content

[0004] To address the technical problem that maintenance or replacement of existing cutter heads for waterway dredging requires manual removal of a large number of bolts, which is time-consuming, labor-intensive, and physically demanding, this utility model provides a detachable cutter head structure for waterway dredging.

[0005] This utility model is implemented as follows: a detachable cutter head structure for waterway dredging includes: a housing, a mounting rod disposed in a mounting hole of the housing, and a cutter head body for waterway dredging fixedly mounted at one end of the mounting rod; a rotating shaft rotatably mounted on the housing, a splined shaft fixedly mounted at one end of the rotating shaft, a splined sleeve disposed on the splined shaft, one side of the splined sleeve being fixedly connected to one end of the mounting rod; a protective shell fixedly mounted on the outer wall of the housing, a drive motor fixedly mounted on the inner wall of the protective shell, the output shaft of the drive motor being fixedly connected to one end of the rotating shaft; and a disassembly mechanism assembled on the housing for replacing the cutter head body.

[0006] Preferably, the disassembly mechanism includes: a horizontal plate fixedly installed on the inner wall of the housing, the horizontal plate having a sliding groove, a bidirectional screw rotatably installed on the inner wall of the sliding groove, a slider threaded onto the bidirectional screw, the slider being slidably connected to the inner wall of the sliding groove, a bracket fixedly installed on the slider, a positioning plate fixedly installed on the bracket, the positioning plate being adapted to an annular groove on the mounting rod; a mounting shell fixedly installed on the inner wall of the housing, a connecting rod rotatably installed on the mounting shell, the connecting rod being rotatably connected to the horizontal plate, one end of the connecting rod extending into the interior of the sliding groove and fixedly installed with a first bevel gear; and a second bevel gear fixedly sleeved on the bidirectional screw, the second bevel gear meshing with the first bevel gear.

[0007] Preferably, the inner wall of the mounting hole is provided with a first ball bearing, which contacts the mounting rod.

[0008] Preferably, the positioning plate is arc-shaped and the bracket is L-shaped.

[0009] Preferably, the positioning plate is provided with a second ball bearing, which is in contact with the inner wall of the annular groove.

[0010] Preferably, an mounting plate is fixedly installed on the outer wall of the protective shell, and the mounting plate has through holes for mounting bolts.

[0011] Preferably, the bidirectional screw is made of stainless steel, and the housing is cylindrical.

[0012] Compared with related technologies, the detachable cutter head structure for channel dredging provided by this utility model has the following advantages: In this design, the use of a drive motor enables the rotating shaft to rotate the spline shaft. The spline shaft, through the spline sleeve, drives the mounting rod to rotate on the housing. The mounting rod, in turn, drives the cutter head body to rotate, allowing the cutter head body to cut, crush, and loosen silt, clay, and gravel at the bottom of the waterway. This design is convenient to use. The disassembly mechanism allows for quick release of the mounting rod and, conversely, quick repositioning. Once the mounting rod is released, the cutter head body can be manually pulled to remove the mounting rod connected to it from the mounting hole. This completes the removal of the cutter head body. During the removal process, the spline sleeve connected to the mounting rod separates from the spline shaft, making disassembly quick and easy. This effectively reduces the labor intensity for workers during disassembly and provides good performance. Attached Figure Description

[0013] Figure 1This is a cross-sectional view of a detachable cutter head structure for channel dredging provided by this utility model; Figure 2 for Figure 1 An enlarged structural diagram of part A shown in the figure; Figure 3 for Figure 1 An enlarged structural diagram of part B shown in the figure; Figure 4 This is a side view of the slider, bracket, and positioning plate in this utility model.

[0014] Reference numerals: 1. Housing; 2. Mounting hole; 3. Mounting rod; 4. Auger head body; 5. Rotating shaft; 6. Splined shaft; 7. Splined sleeve; 8. Protective shell; 9. Drive motor; 10. Horizontal plate; 11. Bidirectional screw; 12. Slider; 13. Bracket; 14. Positioning plate; 15. Annular groove; 16. Mounting shell; 17. Connecting rod; 18. Servo motor; 19. First bevel gear; 20. Second bevel gear; 21. First ball bearing; 22. Second ball bearing. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0017] This utility model embodiment provides a detachable cutter head structure for waterway dredging, such as Figure 1-4As shown, the detachable cutter head structure for channel dredging includes: a housing 1, a mounting rod 3 disposed in a mounting hole 2 of the housing 1, and a cutter head body 4 for channel dredging fixedly mounted at one end of the mounting rod 3; a rotating shaft 5 rotatably mounted on the housing 1, a splined shaft 6 fixedly mounted at one end of the rotating shaft 5, a splined sleeve 7 disposed on the splined shaft 6, one side of the splined sleeve 7 being fixedly connected to one end of the mounting rod 3; a protective shell 8 fixedly mounted on the outer wall of the housing 1, a drive motor 9 fixedly mounted on the inner wall of the protective shell 8, and the output shaft of the drive motor 9 being fixedly connected to one end of the rotating shaft 5; and a disassembly mechanism assembled on the housing 1 for replacing the cutter head body 4.

[0018] In this design, when the cutter head body 4 is needed to cut, crush, and loosen silt, clay, and gravel at the bottom of the channel, the device is first installed on the dredger. Then, the drive motor 9 is started to rotate the shaft 5. The shaft 5 then rotates the spline shaft 6, which in turn rotates the mounting rod 3 on the housing 1 via the spline sleeve 7. The mounting rod 3 then rotates the cutter head body 4, allowing it to cut, crush, and loosen silt, clay, and gravel at the bottom of the channel. This method is relatively convenient. When maintenance or replacement of the cutter head body 4 is required, the cutter head body needs to be... 4. Dismantle the auger head. When dismantling, first activate the dismantling mechanism to quickly release the fixing of the mounting rod 3. After releasing the fixing, pull the auger head body 4 by hand so that the mounting rod 3 connected to the auger head body 4 can be slowly pulled out from the mounting hole 2. During the pulling process, the spline sleeve 7 connected to the mounting rod 3 will separate from the spline shaft 6. When the mounting rod 3 and the spline sleeve 7 are pulled out from the mounting hole 2, the dismantling of the auger head body 4 is completed. The dismantling is relatively convenient and quick, which can effectively reduce the labor intensity of workers during the dismantling process. The effect is good. By using the opposite method, the installation of the auger head body 4 can also be completed quickly.

[0019] In a further preferred embodiment of this utility model, the disassembly mechanism includes: a horizontal plate 10 fixedly installed on the inner wall of the housing 1, the horizontal plate 10 having a sliding groove, a bidirectional screw 11 rotatably installed on the inner wall of the sliding groove, a slider 12 threadedly installed on the bidirectional screw 11, the slider 12 being slidably connected to the inner wall of the sliding groove, a bracket 13 fixedly installed on the slider 12, a positioning plate 14 fixedly installed on the bracket 13, the positioning plate 14 being adapted to the annular groove 15 on the mounting rod 3; a mounting shell 16 fixedly installed on the inner wall of the housing 1, a connecting rod 17 rotatably installed on the mounting shell 16, the connecting rod 17 being rotatably connected to the horizontal plate 10, one end of the connecting rod 17 extending into the interior of the sliding groove and fixedly installed with a first bevel gear 19; and a second bevel gear 20 fixedly sleeved on the bidirectional screw 11, the second bevel gear 20 meshing with the first bevel gear 19.

[0020] In this embodiment, when the auger head body 4 needs to be removed, the servo motor 18 is started to drive the connecting rod 17 to rotate. The connecting rod 17 will drive the first bevel gear 19 to rotate. The first bevel gear 19 will drive the bidirectional screw 11 to rotate through the second bevel gear 20. The bidirectional screw 11 will drive the slider 12 to slide in the sliding groove. The slider 12 will drive the bracket 13 to move. The bracket 13 will drive the positioning plate 14 to move until the positioning plate 14 disengages from the annular groove 15 on the mounting rod 3. After disengagement, the mounting rod 3 can be pulled out of the housing 1, thereby realizing the removal of the auger head body 4 for maintenance and replacement. When the mounting rod 3 on the auger head body 4 after maintenance or replacement is inserted into the mounting hole 2 of the housing 1, the spline sleeve 7 connected to the mounting rod 3 will dock with the spline shaft 6. Next, the servo motor 18 is started to drive the connecting rod 17 to reverse. The connecting rod 17 will drive the first bevel gear 19 to reverse, and the first bevel gear 19 will drive the bidirectional screw 11 to reverse through the second bevel gear 20. The bidirectional screw 11 will drive the slider 12 to move in the opposite direction, so that the positioning plate 14 can be locked on the annular groove 15 of the mounting rod 3, thereby fixing the position of the mounting rod 3 and completing the installation of the auger head body 4. The installation and disassembly are relatively convenient and quick.

[0021] In a further preferred embodiment of the present invention, a first ball bearing 21 is provided on the inner wall of the mounting hole 2, and the first ball bearing 21 is in contact with the mounting rod 3.

[0022] In this embodiment, the use of the first ball bearing 21 can prevent friction between the mounting hole 2 and the mounting rod 3, thereby reducing wear between them.

[0023] In a further preferred embodiment of the present invention, the positioning plate 14 is configured as an arc shape, and the bracket 13 is configured as an L shape.

[0024] In this embodiment, the arc-shaped positioning plate 14 can better hold the annular groove 15 on the mounting rod 3, thereby ensuring the stability of the mounting rod 3 during use.

[0025] In a further preferred embodiment of the present invention, a second ball bearing 22 is provided on the positioning plate 14, and the second ball bearing 22 is in contact with the inner wall of the annular groove 15.

[0026] In this embodiment, the use of the second ball bearing 22 can reduce the friction between the positioning plate 14 and the annular groove 15, thereby reducing wear.

[0027] In a further preferred embodiment of the present invention, an mounting plate is fixedly installed on the outer wall of the protective shell 8, and the mounting plate has through holes for mounting bolts.

[0028] In this embodiment, the through holes on the mounting plate allow workers to easily install the device onto the dredging vessel using bolts.

[0029] In a further preferred embodiment of this utility model, the bidirectional screw 11 is made of stainless steel, and the housing 1 is cylindrical.

[0030] In this embodiment, the bidirectional screw 11 made of stainless steel has good corrosion resistance and durability, and a good service life.

[0031] In summary, compared with related technologies, this solution utilizes a drive motor 9, which enables the rotating shaft 5 to drive the spline shaft 6 to rotate. The spline shaft 6, through the spline sleeve 7, drives the mounting rod 3 to rotate on the housing 1. The mounting rod 3 then drives the cutter head body 4 to rotate, allowing the cutter head body 4 to cut, crush, and loosen mud, clay, and gravel at the bottom of the waterway. This method is relatively convenient to use. The disassembly mechanism allows for quick release of the mounting rod 3 and, conversely, quick fixation of the mounting rod 3. Once the mounting rod 3 is released, the cutter head body 4 can be manually pulled, allowing the mounting rod 3 connected to it to be pulled out from the mounting hole 2. After removal, the disassembly of the cutter head body 4 is complete. During the removal process, the spline sleeve 7 connected to the mounting rod 3 separates from the spline shaft 6, making disassembly convenient and quick. This effectively reduces the labor intensity for workers during disassembly and provides better performance.

[0032] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A detachable cutter head structure for waterway dredging, characterized in that, include: The housing (1) has a mounting rod (3) installed in the mounting hole (2) of the housing (1), and a cutter head body (4) for dredging is fixedly installed at one end of the mounting rod (3). Rotary shaft (5) is mounted on the housing (1). A spline shaft (6) is fixedly mounted on one end of the rotating shaft (5). A spline sleeve (7) is provided on the spline shaft (6). One side of the spline sleeve (7) is fixedly connected to one end of the mounting rod (3). A protective shell (8) is fixedly installed on the outer wall of the housing (1), and a drive motor (9) is fixedly installed on the inner wall of the protective shell (8). The output shaft of the drive motor (9) is fixedly connected to one end of the rotating shaft (5). A disassembly mechanism for replacing the cutter head body (4) is mounted on the housing (1).

2. The detachable cutter head structure for channel dredging as described in claim 1, characterized in that, The disassembly mechanism includes: A horizontal plate (10) is fixedly installed on the inner wall of the housing (1). A sliding groove is provided on the horizontal plate (10). A double-acting screw (11) is rotatably installed on the inner wall of the sliding groove. A slider (12) is threaded on the double-acting screw (11). The slider (12) is slidably connected to the inner wall of the sliding groove. A bracket (13) is fixedly installed on the slider (12). A positioning plate (14) is fixedly installed on the bracket (13). The positioning plate (14) is adapted to the annular groove (15) on the mounting rod (3). A mounting shell (16) is fixedly installed on the inner wall of the housing (1). A connecting rod (17) is rotatably installed on the mounting shell (16). The connecting rod (17) is rotatably connected to the horizontal plate (10). One end of the connecting rod (17) extends into the interior of the sliding groove and is fixedly installed with a first bevel gear (19). A second bevel gear (20) is fixedly sleeved on the bidirectional screw (11), and the second bevel gear (20) meshes with the first bevel gear (19).

3. The detachable cutter head structure for channel dredging as described in claim 1, characterized in that, The inner wall of the mounting hole (2) is provided with a first ball (21), which is in contact with the mounting rod (3).

4. The detachable cutter head structure for channel dredging as described in claim 2, characterized in that, The positioning plate (14) is set to an arc shape, and the bracket (13) is set to an L shape.

5. The detachable cutter head structure for channel dredging as described in claim 2, characterized in that, The positioning plate (14) is provided with a second ball (22), which is in contact with the inner wall of the annular groove (15).

6. The detachable cutter head structure for channel dredging as described in claim 1, characterized in that, The outer wall of the protective shell (8) is fixedly fitted with an installation plate, and the installation plate has through holes for installing bolts.

7. The detachable cutter head structure for channel dredging as described in claim 2, characterized in that, The bidirectional screw (11) is made of stainless steel, and the housing (1) is cylindrical.

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