Reamer head for dredging ship

Abstract

The utility model relates to a reamer head for a dredger, which comprises a fixed support and a reamer rotating in the fixed support, the side edge of the fixed support is movably connected with a connecting frame, one side of the fixed support is fixedly connected with a supporting frame, the bottom of the supporting frame is rotatably connected with a rotating shaft through a rotating piece, and the rotating shaft is fixedly connected with the connecting frame. The surface of the rotating shaft is connected with a spline housing in a sliding mode, and the surface of the rotating shaft is fixedly connected with a driving air cylinder. According to the reamer head for the desilting ship, through the arrangement of the pressing plate, when stones exist, the pressing plate is pressed above the stones and cannot continue to descend, the situation that the stones at the bottom affect a reamer can be prevented, and small stones can float upwards along gaps of the pressing plate, so that normal work cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of reamer heads, in particular to a reamer head for dredging ships. Background Art

[0002] In traditional underwater dredging operations, the suction head of the dredging ship directly enters the underwater bottom silt to disturb the water body and silt, and then sucks the turbid water body full of silt. The silt sucked ashore enters the sedimentation tank for sedimentation treatment to increase the solid content, and the upper clean water is returned. The precipitated silt enters the conditioning tank for conditioning with added drugs, and is filtered and dehydrated by a filter press to form a mud cake.

[0003] According to the patent number CN206928352U, when a spiral reamer head with a baffle is used, when there are large stones in the riverbed, the reamer is likely to collide with the stones, causing damage to the reamer. It can only be used in areas with a relatively flat riverbed and not much gravel. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a reamer head for a dredging ship, which solves the above-mentioned problems.

[0005] To achieve the above purpose, the utility model is implemented through the following technical scheme: a dredging ship reamer head comprises a fixed bracket and a reamer rotating in the fixed bracket, the side of the fixed bracket is movably connected with a connecting bracket, one side of the fixed bracket is fixedly connected with a supporting bracket, the bottom of the supporting bracket is rotatably connected with a rotating shaft through a rotating member, the surface of the rotating shaft is slidably connected with a spline sleeve, the surface of the rotating shaft is fixedly connected with a driving cylinder, one end of the driving cylinder piston rod is fixedly connected to one side of the connecting bracket, the bottom of the connecting bracket is fixedly connected with a pressure plate, the inner cavity of the pressure plate is provided with a mesh area, one end of the reamer transmission shaft is fixed with a spline shaft that penetrates and extends to the outside of the fixed bracket, the bottom of the supporting bracket is fixedly connected with a transverse cylinder that is fixedly connected with a moving end and the surface of the spline sleeve, the spline sleeve and the spline shaft are coaxial, and when in use, the fixed The fixed bracket is lowered into the water, and the pressure plate at the bottom of the connecting frame contacts the silt. Then the silt enters the top of the pressure plate and contacts the reamer to disturb it. Through the setting of the pressure plate, when there are stones, the pressure plate is pressed on the top of the stone and cannot continue to descend, which can prevent the bottom stones from affecting the reamer, and small stones can float up through the gaps in the pressure plate without affecting normal operation. When the pressure plate is not needed after shutdown, the spline shaft and the spline sleeve are aligned, and the transverse cylinder is started to drive the spline sleeve to connect with the spline shaft. At this time, the reamer, spline shaft, spline sleeve and rotating shaft form a transmission structure, and the connecting frame is driven downward by the driving cylinder, leaving enough distance between the pressure plate and the fixed bracket. Then the reamer rotates to drive the rotating shaft to rotate, and drives the connecting frame and the pressure plate to rotate to the side of the fixed bracket, so that the pressure plate can be raised to prevent it from being squeezed and damaged when placed below.

[0006] As a further solution of the utility model: a fixed frame is fixedly connected to the surface of the fixed bracket, a vibration motor is fixedly connected to the inner cavity of the fixed frame, the bottom of the fixed frame is covered with a rubber sheathing sleeve abutting against the vibration end of the vibration motor, the surface of the rubber sheathing sleeve abuts against the top of the connecting frame, and when in use, the vibration of the vibration motor drives the connecting frame to vibrate, driving the pressure plate to vibrate downward continuously and press into the silt, which can provide protection without affecting its normal descent, and through the setting of the rubber sheathing sleeve, it can play a sealing role while ensuring the effective transmission of the vibration effect.

[0007] As a further solution of the utility model: the mesh areas are evenly distributed in the inner cavity of the pressure plate, and reinforcing ribs are arranged between the mesh areas. The strength of the pressure plate is supported by the arrangement of the reinforcing ribs to prevent curvature in the middle of the mesh area, which would affect the normal extrusion effect.

[0008] As a further solution of the utility model: the bottom of the fixed bracket is fixedly connected with a limit block abutting against the top of the pressing plate. The setting of the limit block can prevent the reamer from contacting the pressing plate and causing damage to the pressing plate.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The utility model, through the setting of the pressure plate, when there is a stone, the pressure plate is pressed on the top of the stone and cannot continue to fall, which can prevent the bottom stone from affecting the reamer, and the small stone can float up along the gap of the pressure plate without affecting the normal work.

[0011] 2. When the utility model is in use, the vibration of the vibration motor drives the connecting frame to vibrate, and drives the pressure plate to vibrate downward continuously, pressing into the silt, which can provide protection without affecting its normal descent, and the setting of the rubber sheath can ensure the effective transmission of the vibration effect while playing a sealing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A;

[0014] Figure 3 It is a structural side view of the utility model;

[0015] Figure 4 It is a structural side view of the utility model in a flipped state;

[0016] Figure 5 It is a structural schematic diagram of the pressing plate of the utility model.

[0017] In the figure: 1. fixed bracket; 2. reamer; 3. connecting frame; 4. pressure plate; 5. rotating shaft; 6. transverse cylinder; 7. spline sleeve; 8. support frame; 9. spline shaft; 10. fixed frame; 11. rubber covering sleeve; 12. vibration motor; 13. driving cylinder; 14. mesh area. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] See also Figure 1-5The utility model provides a technical solution: a reamer head for dredging ships, comprising a fixed bracket 1 and a reamer 2 rotating in the fixed bracket 1, a connecting bracket 3 is movably connected to the side of the fixed bracket 1, a support bracket 8 is fixedly connected to one side of the fixed bracket 1, a rotating shaft 5 is rotatably connected to the bottom of the support bracket 8 through a rotating member, a spline sleeve 7 is slidably connected to the surface of the rotating shaft 5, a driving cylinder 13 is fixedly connected to the surface of the rotating shaft 5, one end of the piston rod of the driving cylinder 13 is fixedly connected to one side of the connecting bracket 3, a pressing plate 4 is fixedly connected to the bottom of the connecting bracket 3, a mesh area 14 is provided in the inner cavity of the pressing plate 4, a spline shaft 9 penetrating through and extending to the outside of the fixed bracket 1 is fixedly connected to one end of the transmission shaft of the reamer 2, a transverse cylinder 6 which is fixedly connected to the surface of the spline sleeve 7 with a moving end at the bottom of the support bracket 8, the spline sleeve 7 and the spline shaft 9 are coaxial, when in use, the fixed bracket 1 is lowered into the water, and the connecting bracket 3 is used to connect the fixed bracket 1 to the water. The pressure plate 4 at the bottom comes into contact with the silt, and then the silt enters the top of the pressure plate 4 and comes into contact with the reamer 2 to disturb it. Through the setting of the pressure plate 4, when there are stones, the pressure plate 4 is pressed on the top of the stone and cannot continue to fall, which can prevent the bottom stones from affecting the reamer 2, and small stones can float up along the gap of the pressure plate 4 without affecting normal operation. When the pressure plate 4 is no longer needed after shutdown, the spline shaft 9 is aligned with the spline sleeve 7, and the transverse cylinder 6 is started to drive the spline sleeve 7 to connect with the spline shaft 9. At this time, the reamer 2, the spline shaft 9, the spline sleeve 7 and the rotating shaft 5 form a transmission structure, and the connecting frame 3 is driven downward by the driving cylinder 13, and a sufficient distance is reserved between the pressure plate 4 and the fixed bracket 1. Then the reamer 2 rotates to drive the rotating shaft 5 to rotate, and drives the connecting frame 3 and the pressure plate 4 to rotate to the side of the fixed bracket 1, so that the pressure plate 4 can be lifted to prevent it from being squeezed and damaged when placed below.

[0020] A fixed frame 10 is fixedly connected to the surface of the fixed bracket 1, a vibration motor 12 is fixedly connected to the inner cavity of the fixed frame 10, and a rubber sheath 11 is coated on the bottom of the fixed frame 10 and abuts against the vibration end of the vibration motor 12. The surface of the rubber sheath 11 abuts against the top of the connecting frame 3. When in use, the vibration of the vibration motor 12 drives the connecting frame 3 to vibrate, and drives the pressure plate 4 to vibrate downward continuously and press into the silt, which can provide protection without affecting its normal descent, and the provision of the rubber sheath 11 can ensure effective transmission of the vibration effect while playing a sealing role.

[0021] The mesh areas 14 are evenly distributed in the inner cavity of the pressing plate 4, and reinforcing ribs are arranged between the mesh areas 14. The strength of the pressing plate 4 is supported by the arrangement of the reinforcing ribs to prevent the middle part of the mesh area 14 from generating curvature and affecting the normal extrusion effect.

[0022] A limit block abutting against the top of the pressing plate 4 is fixedly connected to the bottom of the fixed bracket 1. The setting of the limit block can prevent the reamer 2 from contacting the pressing plate 4 and causing damage to the pressing plate 4.

[0023] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A reamer head for a dredging vessel, comprising a fixed support (1) and a reamer (2) rotating in the fixed support (1), characterized in that: The side of the fixed bracket (1) is movably connected to a connecting bracket (3), one side of the fixed bracket (1) is fixedly connected to a supporting bracket (8), the bottom of the supporting bracket (8) is rotatably connected to a rotating shaft (5) through a rotating member, the surface of the rotating shaft (5) is slidably connected to a spline sleeve (7), the surface of the rotating shaft (5) is fixedly connected to a driving cylinder (13), one end of the piston rod of the driving cylinder (13) is fixedly connected to one side of the connecting bracket (3), the bottom of the connecting bracket (3) is fixedly connected to a pressure plate (4), the inner cavity of the pressure plate (4) is provided with a mesh area (14), one end of the transmission shaft of the reamer (2) is fixedly connected to a spline shaft (9) that penetrates and extends to the outside of the fixed bracket (1), the bottom of the supporting bracket (8) is fixedly connected to a transverse cylinder (6) whose moving end is fixedly connected to the surface of the spline sleeve (7), and the spline sleeve (7) and the spline shaft (9) are coaxial.

2. The reamer head for dredging ship according to claim 1, characterized in that: A fixed frame (10) is fixedly connected to the surface of the fixed bracket (1), a vibration motor (12) is fixedly connected to the inner cavity of the fixed frame (10), the bottom of the fixed frame (10) is covered with a rubber sheath (11) abutting against the vibration end of the vibration motor (12), and the surface of the rubber sheath (11) abuts against the top of the connecting frame (3).

3. The reamer head for dredging ship according to claim 1, characterized in that: The mesh areas (14) are evenly distributed in the inner cavity of the pressing plate (4), and reinforcing ribs are arranged between the mesh areas (14).

4. The reamer head for dredging ship according to claim 1, characterized in that: The bottom of the fixed bracket (1) is fixedly connected to a limiting block which abuts against the top of the pressing plate (4).

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