Long environment-friendly reamer pulley hoisting equipment

Abstract

The utility model discloses long environment-friendly reamer pulley hoisting equipment. The long environment-friendly reamer pulley hoisting equipment comprises a base, an inclined frame, a hoisting frame and a reamer mechanism, wherein the base is fixedly arranged on a deck of a ship body; the inclined frame is welded and arranged at the top of the base, the hoisting frame is in hoisting connection with the end part of the inclined frame through a steel wire rope, and the reamer mechanism is welded and arranged at the end part of the hoisting frame. According to the utility model, the steel wire rope is respectively wound on two groups of wheel bodies with different rotation directions of the welding frame and the main pulley, so that friction between the same cambered surface of the steel wire rope and the wheel bodies in the hoisting process is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of cutter suction dredgers, specifically relating to a long, environmentally friendly cutter pulley lifting device. Background Technology

[0002] A cutter suction dredger uses a rotating cutter head to loosen soil from the riverbed or seabed, mix it with cement to form slurry, which is then sucked into the pump body through a suction pipe and transported to the discharge area through a discharge pipe. During operation, dredging, conveying, and unloading are all integrated into a single process, resulting in high production efficiency. It is suitable for dredging in inland rivers and lakes with low waves and currents, as well as coastal ports. It is particularly suitable for dredging sand, sandy loam, and silt. With a toothed cutter head, it can dredge clay, but the efficiency is lower.

[0003] Domestic utility model patent application number 202222569885.X discloses a cutter head reversing device for a cutter suction dredger, including a base, a cutter head bracket, a motor, a gearbox, a drive shaft, a driven shaft, and a coupling. The base is placed on the ship's deck or on land and in a maintenance workshop. The cutter head bracket is hinged to the base on both sides via the drive shaft and the driven shaft. The output end of the motor is connected to the input end of the gearbox, and the output end of the gearbox is connected to the drive shaft via the coupling, so that the motor drives the drive shaft to rotate through the gearbox, and the drive shaft drives the cutter head bracket to rotate, realizing the conversion of the cutter head bracket between horizontal and vertical states. This utility model has a simple structure, low manufacturing cost, is economical and practical, reusable, easy to transport, and widely applicable. It is mainly used for converting the cutter head of a cutter suction dredger between horizontal and side-mounted positions. Compared with the traditional method of changing the position by lifting with wire rope, it has the advantages of low safety risk, quick cutter head reversal, low labor intensity, and fewer personnel required. Existing cutter suction dredgers are divided into cutter suction dredgers and trailing suction hopper dredgers. In a trailing suction hopper dredger, the cutter head is located on both sides of the hull and is lifted by a pulley system to suction out silt. High-strength steel wire ropes are used during lifting. However, in actual use, because one end of the wire rope is constantly submerged in water and there is friction between it and the pulleys, prolonged use of multiple pulleys in the same winding direction can easily cause wear on the same arc surface of the wire rope. This affects the service life of the wire rope and also impacts the stability and safety of the lifting equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a long environmentally friendly cutter pulley lifting device, including a base fixedly installed on the deck of a ship, an inclined frame welded to the top of the base, a lifting frame connected to the end of the inclined frame by a steel wire rope, and a cutter mechanism welded to the end of the lifting frame.

[0005] The lifting frame is lifted by steel wire rope, thereby enabling the cutter head mechanism to excavate and cut the sludge layer.

[0006] As a further preferred technical solution of this utility model, the base is fixedly installed to the ship's deck through mounting plates fixedly installed on both sides, and a support frame is welded and installed at one end of the base at the bottom of the inclined frame, and the bottom of the support frame is fixedly installed to the ship's deck.

[0007] The bottom of the inclined frame is supported and fixed by a support frame to ensure the stability of the inclined frame during the lifting process.

[0008] As a further preferred technical solution of this utility model, a wire rope wheel and a spare wheel are installed at both ends of the inner side of the inclined frame, and a drive motor is fixedly installed at the top of the base at the position of the wire rope wheel, and the output end of the drive motor passes through the inclined frame and is connected to the wire rope wheel and the spare wheel.

[0009] The wire rope wheel at the top of the base is driven by a drive motor to rotate, so that the wire rope wheel can wind up the wire rope, thereby achieving the lifting effect of the cutter head.

[0010] As a further preferred technical solution of this utility model; three sets of pulley frames are welded and installed on the lifting frame, and a positioning frame is welded and installed at the bottom of the pulley frame and welded to the bottom of the lifting frame. Two sets of welding frames are welded and installed on both sides of the positioning frame, and a side pulley is rotatably installed between the welding frames. An installation groove is opened on the pulley frame, and a main pulley is rotatably installed on the installation groove.

[0011] During the lifting process, friction occurs between the arc surface of the wire rope in a certain direction and the wheel body. The same arc surface of the wire rope will suffer greater wear in the same direction of the pulley, thus affecting its service life. By winding the wire rope around the welding frame and the main pulley, which are two sets of wheels with different rotation directions, friction between the same arc surface of the wire rope and the wheel body is avoided during the lifting process.

[0012] As a further preferred technical solution of this utility model; a curved groove is provided around the outer ring of the pulley frame at the top position of the side pulley, and through openings are provided on the pulley frame at both ends of the top of the main pulley, which are in line with the curved groove. Multiple sets of wire rope grooves are provided on the main pulley, and the bottom of the positioning frame is provided with a groove that is the same as the curved groove.

[0013] The wire rope is wound onto a wire rope pulley driven by a drive motor, and is arranged downwards from the wire rope pulley at the top of the inclined frame. The wire rope winds along the curved groove from the outside of the side pulley, and winds along the groove at the bottom of the positioning frame to another set of side pulleys, and then is arranged from the curved groove to the through-hole position. It passes through multiple sets of wire rope grooves on the main pulley through one through-hole, and then exits through another through-hole, actively winding onto the spare pulley on one side of the wire rope pulley.

[0014] As a further preferred technical solution of this utility model, the auger mechanism includes an auger body, an outer cover frame fixedly installed outside the auger body, a positioning roller welded to the top of the outer cover frame, and a tilting frame rotatably installed outside the positioning roller. The top of the tilting frame is connected to the top of the outer cover frame by two sets of tilting connecting rods. A sludge suction pipe is installed through the top of the outer cover frame, and a sludge discharge pipe for discharging sewage is connected to the top of the sludge suction pipe. The sludge discharge pipe is positioned between the pulley frame and the lifting frame.

[0015] The cutter body is driven by a hydraulic transmission device, which agitates the bottom silt layer. The agitated silt is then discharged into a silt storage tank on the hull through a sludge discharge pipe via a sludge pump on the hull. The flip-connecting rod makes it easier for the cutter body to fit more closely to the silt layer during agitation. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. The lifting height varies at different locations, ensuring that the lifting frame is tilted on both sides of the hull, while the bottom of the cutter mechanism contacts the silt layer for winch operation. The wire rope is positioned using curved grooves, and multiple sets of winding wheels enhance the fixing method between the wire rope and the cutter mechanism, ensuring the stability of the cutter mechanism during lifting.

[0018] 2. During the lifting process, friction occurs between the arc surface of the wire rope in one direction and the pulley. This friction, occurring on the same arc surface in the same pulley direction, causes significant wear and affects the rope's lifespan. By winding the wire rope around two sets of pulleys with different rotation directions—one on the welding frame and the other on the main pulley—friction between the same arc surface and the pulley is prevented during lifting. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0021] Figure 3This is a schematic diagram of the auger mechanism of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the pulley frame of this utility model.

[0023] In the diagram: 1. Base; 11. Mounting plate; 12. Inclined frame; 13. Wire rope pulley; 14. Spare pulley; 15. Support frame; 2. Drive motor; 3. Sludge discharge pipe; 4. Lifting frame; 41. Pulley frame; 42. Curved groove; 43. Welding frame; 44. Side pulley; 45. Positioning frame; 46. Mounting slot; 47. Main pulley; 48. Wire rope groove; 49. Through-hole; 5. Auger mechanism; 51. Auger body; 52. Outer cover frame; 53. Positioning roller; 54. Tilting frame; 55. Tilting connecting rod; 56. Sludge suction pipe. Detailed Implementation

[0024] This specific embodiment is a long, environmentally friendly cutter pulley lifting device.

[0025] Existing cutter suction dredgers are divided into cutter suction dredgers and trailing suction hopper dredgers. In a trailing suction hopper dredger, the cutter head is located on both sides of the hull and is lifted by a pulley system to suction out silt. High-strength steel wire ropes are used during lifting. However, in actual use, because one end of the wire rope is constantly submerged in water and there is friction between it and the pulleys, prolonged use of multiple pulleys in the same winding direction can easily cause wear on the same arc surface of the wire rope. This affects the service life of the wire rope and also impacts the stability and safety of the lifting equipment.

[0026] Its structural diagram is as follows Figures 1-4 As shown, a long, environmentally friendly cutter pulley lifting device includes a base 1 fixedly installed on the deck of a ship and an inclined frame 12 welded to the top of the base 1. The base 1 is fixedly installed to the deck of the ship via mounting plates 11 fixedly installed on both sides. A support frame 15 is welded to one end of the base 1 at the bottom of the inclined frame 12, and the bottom of the support frame 15 is fixedly installed to the deck of the ship. The support frame 15 supports and fixes the bottom of the inclined frame 12, ensuring the stability of the inclined frame 12 during lifting. Wire rope pulleys 13 and spare pulleys 14 are installed at both ends of the inner side of the inclined frame 12. A drive motor 2 is fixedly installed at the top of the base 1 at the position of the wire rope pulley 13, and the output end of the drive motor 2 passes through the inclined frame 12 and is connected to the wire rope pulley 13 and the spare pulley 14. The drive motor 2 drives the wire rope pulley 13 at the top of the base 1 to rotate, causing the wire rope pulley 13 to wind up the wire rope, achieving the lifting effect of the cutter.

[0027] It also includes a lifting frame 4 that is suspended from the end of the inclined frame 12 by a steel wire rope. Three sets of pulley frames 41 are welded and installed on the lifting frame 4. A positioning frame 45, welded to the bottom of the pulley frame 41 and attached to the bottom of the lifting frame 4, is welded and installed on both sides of the positioning frame 45. A side pulley 44 is rotatably installed between the welding frames 43. An installation groove 46 is provided on the pulley frame 41, and a main pulley 47 is rotatably installed in the installation groove 46. During the lifting process of the steel wire rope, friction occurs between the arc surface of its outer surface in one direction and the wheel body. The same pulley direction will cause greater wear on the same arc surface of the steel wire rope, thus affecting its service life. By winding the steel wire rope around the welding frame 43 and the main pulley 47, which have different rotation directions, friction between the same arc surface of the steel wire rope and the wheel body is avoided during lifting. A curved groove 42 is provided around the outer edge of the pulley frame 41 at the top position of the side pulley 44. The pulley frame 41 has through openings 49 at both ends of the top of the main pulley 47, corresponding to the curved grooves 42. The main pulley 47 has multiple sets of wire rope grooves 48. The bottom of the positioning frame 45 has a groove identical to the curved groove 42. The wire rope is wound onto the wire rope wheel 13 driven by the drive motor 2, and arranged downwards from the wire rope wheel 13 at the top of the inclined frame 12. The wire rope winds along the curved groove 42 from the outside of the side pulley 44, and winds along the groove at the bottom of the positioning frame 45 to another set of side pulleys 44, then is arranged from the curved groove 42 to the through opening 49. The wire rope passes through the multiple sets of wire rope grooves 48 on the main pulley 47 through one through opening 49, and then exits through another through opening 49, actively winding onto the spare wheel 14 on one side of the wire rope wheel 13. The lifting height varies at different locations, ensuring that the lifting frame 4 is tilted on both sides of the hull, while the bottom of the cutter mechanism 5 contacts the silt layer for winch operation. The wire rope is positioned using curved grooves 42, and multiple sets of winding wheels enhance the fixing method between the wire rope and the cutter mechanism 5, ensuring the stability of the cutter mechanism 5 during lifting.

[0028] It also includes a cutter mechanism 5 welded to the end of the lifting frame 4. The cutter mechanism 5 includes a cutter body 51, an outer cover 52 fixedly installed outside the cutter body 51, a positioning roller 53 welded to the top of the outer cover 52, and a tilting frame 54 rotatably installed outside the positioning roller 53. The top of the tilting frame 54 is connected to the top of the outer cover 52 by two sets of tilting connecting rods 55. A sludge suction pipe 56 is installed through the top of the outer cover 52, and a sludge discharge pipe 3 for discharging sewage is connected to the top of the sludge suction pipe 56. The sludge discharge pipe 3 is positioned between the pulley frame 41 and the lifting frame 4. The cutter body 51 is driven by a hydraulic transmission device to agitate the bottom sludge layer. The agitated sludge is discharged into a sludge storage tank on the hull through the sludge discharge pipe 3 via a sewage pump on the hull. The tilting connecting rods 55 facilitate the cutter body 51 to fit more closely to the sludge layer during agitation.

[0029] The vessel is moved to the location where river silt treatment is needed. The wire rope, driven by the drive motor 2, is wound onto the wire rope pulley 13, which is arranged downwards from the top of the inclined frame 12. The wire rope winds along the curved groove 42 from the outside of the side pulley 44, and then winds along the groove at the bottom of the positioning frame 45 to another set of side pulleys 44. It is then arranged from the curved groove 42 to the through-hole 49. The wire rope passes through multiple sets of wire rope grooves 48 on the main pulley 47 through one through-hole 49, and then exits through another through-hole 49, actively winding onto the spare pulley 14 on one side of the wire rope pulley 13. The lifting frame 4 is lifted, bringing the cutter body 51 into contact with the silt layer. The cutter body 51 is driven by a hydraulic transmission device, causing it to agitate the bottom silt layer. The agitated silt is discharged through the sludge pump on the hull and into the sludge storage tank on the hull via the sludge discharge pipe 3.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A long, environmentally friendly auger pulley lifting device, characterized in that, It includes a base (1) fixedly installed on the deck of the ship, an inclined frame (12) welded to the top of the base (1), a lifting frame (4) connected to the end of the inclined frame (12) by a wire rope, and a auger mechanism (5) welded to the end of the lifting frame (4).

2. The long environmentally friendly auger pulley lifting device according to claim 1, characterized in that: The base (1) is fixedly installed to the ship's deck by mounting plates (11) fixedly installed on both sides. The bottom of the inclined frame (12) is welded to a support frame (15) at one end of the base (1), and the bottom of the support frame (15) is fixedly installed to the ship's deck.

3. The long environmentally friendly auger pulley lifting device according to claim 2, characterized in that: Both ends of the inclined frame (12) are equipped with wire rope wheels (13) and spare wheels (14). The top of the base (1) is fixedly installed with a drive motor (2) at the position of the wire rope wheel (13). The output end of the drive motor (2) passes through the inclined frame (12) and is connected to the wire rope wheel (13) and the spare wheel (14).

4. The long environmentally friendly auger pulley lifting device according to claim 3, characterized in that: Three sets of pulley frames (41) are welded and installed on the lifting frame (4). A positioning frame (45) is welded and installed at the bottom of the pulley frame (41) and is welded and installed at the bottom of the lifting frame (4). Two sets of welding frames (43) are welded and installed on both sides of the positioning frame (45). A side pulley (44) is rotatably installed between the welding frames (43). An installation groove (46) is opened on the pulley frame (41), and a main pulley (47) is rotatably installed on the installation groove (46).

5. A long, environmentally friendly auger pulley lifting device according to claim 4, characterized in that: A curved groove (42) is provided around the outside of the pulley frame (41) at the top of the side pulley (44). A through opening (49) is provided on the pulley frame (41) at both ends of the top of the main pulley (47) to match the curved groove (42). Multiple sets of wire rope grooves (48) are provided on the main pulley (47). The bottom of the positioning frame (45) is provided with a groove that is the same as the curved groove (42).

6. The long environmentally friendly auger pulley lifting device according to claim 5, characterized in that: The auger mechanism (5) includes an auger body (51), an outer cover (52) fixedly installed outside the auger body (51), a positioning roller (53) welded to the top of the outer cover (52), and a flipping frame (54) rotatably installed outside the positioning roller (53). The top of the flipping frame (54) is connected to the top of the outer cover (52) by two sets of flipping connecting rods (55). A sludge suction pipe (56) is installed through the top of the outer cover (52), and a sludge discharge pipe (3) for discharging sewage is installed at the top of the sludge suction pipe (56). The sludge discharge pipe (3) is positioned between the pulley frame (41) and the lifting frame (4).

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