Dredging ship hinge head

Abstract

The utility model discloses a dredger hinge head which comprises a large ring and a hub, the large ring is fixedly connected with the hub through a plurality of sets of cutter arms, a plurality of cutter teeth are arranged on the outer side edges of the cutter arms, and a hinge head support is arranged on the lower side of the large ring. The utility model has the beneficial effects that: (1) by reducing the number of the cutter arms and increasing the width of the cutter arms and the distance between the cutter arms, the resistance of rotary cutting of sludge by the reaming head can be reduced, the passing rate of vegetation is increased, and vegetation winding is reduced; (2) the circumferential teeth are arranged on the large ring, so that the ground breaking capacity of the reaming head is improved, and the resistance of the cutter arm to rotationally cut sludge is further reduced; and (3) a grating cover is arranged outside the large ring, so that the probability that the vegetation winds the hinge head is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the reservoir dredging equipment technical field especially relates to a dredging ship hinge. BACKGROUND

[0002] Underwater dredging often adopts grab dredging, pump suction dredging, ordinary cutter suction dredging, bucket wheel dredging and other dredging and dredging methods. Cutter suction dredging is relatively mature, especially in coastal areas and areas rich in water. The silt in these areas is generally loose, low in sand content, and has little change in geological conditions. Cutter suction dredging method has high dredging efficiency. In the dredging construction of reservoirs in cold and arid areas, when the conventional cutter suction dredging technology is directly introduced, due to the special hydrogeological conditions and construction conditions of the area, the reservoir silt has the characteristics of complex accumulation composition such as multiple rock layers, hard quality, relatively high density, high sand content, etc. At the same time, the vegetation is lush, the rhizome is thick and strong, and the conventional cutter suction dredging equipment, especially the cutter head of the cutter suction ship, is easy to be entangled with vegetation, the soil breaking capacity is weakened, and it cannot run efficiently, which needs to spend a lot of time to clean the cutter head, resulting in low dredging efficiency, high cost of cutter suction dredging, and causing great waste of resources. SUMMARY

[0003] In view of the problems in the prior art that the hinge is easy to be entangled with vegetation, the soil breaking capacity is weakened, and it cannot run efficiently, which needs to spend a lot of time to clean the cutter head, resulting in low dredging efficiency, high cost of cutter suction dredging, and causing great waste of resources, the utility model provides a dredging ship hinge, which comprises a large ring and a hub, the large ring is fixedly connected with the hub through a plurality of groups of cutter arms, a plurality of cutter teeth are arranged on the outer side of the cutter arm, and a hinge support is arranged on the lower side of the large ring.

[0004] As a preferred scheme, the top of the hub is provided with a taper head.

[0005] As a preferred scheme, the taper head is a triangular pyramid structure.

[0006] As a preferred scheme, a plurality of circumferential teeth are arranged on the outer side of the large ring.

[0007] As a preferred scheme, the large ring is rotatably connected with the hinge support, and an ear seat is fixedly arranged on the side wall of the hinge support.

[0008] As a preferred scheme, the ear seat is fixedly connected with the ear plate on the grid cover through bolts.

[0009] As a preferred scheme, a tie bar is arranged between the upper part and the lower part of the grid cover.

[0010] The utility model has the advantages of:

[0011] (1) by reducing the number of arms, increase the width of the arm and the spacing between the arm, can reduce the resistance of the rotary cutting of the head silt, increase the passing rate of vegetation, reduce the vegetation winding;

[0012] (2) the ring is provided with a ring tooth, the ring tooth and the ring are arranged at a specific angle, which increases the soil breaking capacity of the head, further reduces the resistance of the rotary cutting of the arm silt;

[0013] (3) the outer part of the ring is provided with a grid cover, which further reduces the probability of winding the head of the vegetation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model.

[0015] Figure 2 It is the whole structure schematic diagram of the utility model without grid cover.

[0016] Figure 3 It is the whole front view of the utility model.

[0017] Figure 4 It is the whole structure schematic diagram of the grid cover in the utility model.

[0018] In the drawing: 1, ring; 2, hub; 3, arm; 4, cone; 5, cutter; 6, ring tooth; 7, head support; 8, ear seat; 9, grid cover; 10, reinforcing bar; 11, bolt; 12, ear plate. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail according to the drawings and specific embodiments.

[0020] EMBODIMENT

[0021] As Figures 1-4 The dredging ship head shown in the drawing, including ring 1 and hub 2, ring 1 is fixedly connected with hub 2 through three groups of arms 3, the outside of arm 3 is provided with a plurality of cutter 5, the lower side of ring 1 is provided with head support 7.

[0022] Further, the top of hub 2 is provided with cone 4.

[0023] Further, the cone is a triangular pyramid structure.

[0024] Further, a plurality of ring teeth 6 are arranged on the outside of ring 1.

[0025] Further, ring 1 is rotatably connected with head support 7, ear seat 8 is fixedly arranged on the side wall of head support 7.

[0026] Further, the ear seat 8 is fixedly connected with the lug plate 12 on the grille cover 9 through the bolt 11.

[0027] Further, the lug 10 is arranged between the upper part and the lower part of the grille cover 9, so as to increase the strength of the grille cover 9, balance the stress of the whole grille cover 9, and reduce the probability of damage of the grille cover 9 in the process of breaking the soil.

[0028] Further, the cutter arm 3 is in a spiral structure, the bottom width of the cutter arm 3 is B, the value range of B is 450-550 mm, the top width is b, the value range of b is 190-230 mm, so as to ensure that the cutter arm 3 and the large ring 1 have sufficient connection strength, and prevent the cutter arm 3 from being damaged due to the vegetation or the soil.

[0029] Further, the curvature radius of the cutter arm 3 is 200-1050 mm, and the included angle is γ, the value range of γ is 70-72°, so that the cutter arm 3 matched with the cutter tooth 5 can quickly cut the vegetation or break the soil.

[0030] Further, the opening between the cutter arms 3 is W, the value range of W is 280-320 mm, so as to ensure that the cutter arms 3 have sufficient spacing for passing through the vegetation.

[0031] Further, the maximum thickness of the cutter arm 3 is 60 mm, so as to ensure sufficient strength of the cutter arm 3 and prolong the service life of the cutter arm 3.

[0032] Further, the included angle between the circumferential tooth 6 and the large ring 1 is θ, the value range of θ is 30-40°, and the arrangement direction is the same as that of the cutter tooth 5, so that the circumferential tooth 6 can break the soil at the angle.

[0033] In the use process of the above-mentioned reamer head, the reamer head support 7 is installed on the suction pipeline of the suction dredger, the transmission shaft is in transmission connection with the wheel hub 2, the suction dredger starts to break and suck the silt layer, the grille cover 9 prevents the vegetation above the reamer head from being entangled with the reamer head, meanwhile, the width of the cutter arm 3 is wide enough, so that the vegetation is not easy to be entangled on the cutter arm 3, thereby reducing the probability of entanglement of the vegetation on the reamer head, meanwhile, the widened cutter arm 3 is easier to clean, the taper head 4 arranged on the wheel hub 2 is in a triangular pyramid shape, so as to increase the soil breaking capacity of the reamer head under water, so as to adapt to the hard silt in the terrain of the water-cold-arid region, the circumferential tooth 6 further enhances the soil breaking capacity of the reamer head, so that the soil breaking effect is more comprehensive and thorough.

Claims

1. A dredging vessel swivel head, characterized in that, Including big ring (1) and hub (2), big ring (1) is fixedly connected with hub (2) through several groups of cutter arm (3), and the outside of cutter arm (3) is provided with several cutter teeth (5), and the lower side of big ring (1) is provided with a hinge bracket (7); The outside of the big ring (1) is provided with a plurality of circumferential teeth (6); The big ring (1) is rotatably connected with the hinge bracket (7), and the side wall of the hinge bracket (7) is fixedly provided with an ear seat (8), and the ear seat (8) is fixedly connected with an ear plate (12) on the grille cover (9) through a bolt (11).

2. A dredging vessel swivel head according to claim 1, characterized in that The top of the hub (2) is provided with a taper head (4).

3. A dredging vessel swivel head according to claim 2, characterized in that The taper head (4) is a triangular pyramid structure.

4. A dredging vessel swivel head according to claim 1, characterized in that The upper part and the lower part of the grille cover (9) are provided with a tie bar (10).

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