CN1696419A

CN1696419A - Dredging head in vibratin mode and application apparatus

Info

Publication number: CN1696419A
Application number: CN 200510082931
Authority: CN
Inventors: 孙孝庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-07
Filing date: 2005-07-07
Publication date: 2005-11-16
Anticipated expiration: 2025-07-07
Also published as: CN100354482C

Abstract

The present invention discloses a vibration type dredging head and a deep-water dredging boat using said dredging head. Said vibration type adredging head includes rigid central sediment-discharging pipe, motor, delay contrifugal clutch, eccentric block exciting device and cutter disk rotating mechanism, and the dredging boat includes boat body, tower frame, hanging mechanism, sand stone pump, vibration type dredging head and control device.

Description

A kind of vibrating type dredging head and application apparatus thereof

Technical field

The present invention relates to a kind of vibrating type dredging head, and the deepwater dredging equipment and the dredger that this deepwater dredging equipment is installed that use this dredging head.

Background technology

Existing dredging head only has spinfunction usually, relies on its revolving force to make water-bed bed mud or deposit fragmentation during work, utilizes pump that mud mixture is extracted out then, to finish the dredging to the bottom.Because this dredging head relies on its revolving force to come work merely, thereby not only energy consumption is big during work, and at the bottom of the production efficiency.

In addition, at present the dredging plant that uses generally only is suitable for using in than the shallow water territory, and along with constantly the building up of massive water projects, presses for the dredging plant that can construct in deep water, to guarantee the normal operation of these water conservancy projectss.

Summary of the invention

At the problem that prior art exists, the purpose of this invention is to provide a kind of production efficiency height, the low vibrating type dredging head of work energy consumption.Further aim of the present invention provides the above-mentioned vibrating type dredging head of a kind of application, is suitable for the deepwater dredging ship in the operation of deep water waters.

For achieving the above object, vibrating type dredging head of the present invention comprises rigid central deslagging pipe, motor, time-delay centrifugal clutch, eccentric block vibration exciter, bite disc spins mechanism; Be fixed with a mating face and the perpendicular flange of its axis on the described deslagging pipe pipe shaft; Motor and deslagging pipe fix, and wherein motor housing one end and flange are airtight fixing, and the hollow core shaft of described motor is sleeved on outside the deslagging pipe, and and the deslagging tube outer surface between leave the gap; Described time-delay centrifugal clutch comprises cover for seat, cover for seat is provided with several damping oil cylinders, this damping oil cylinder is circumferentially uniform along cover for seat, the damping oil cylinder end cap is fixed on the end of cylinder sleeve, the brake pad surface is a circular arc circumferentially, and be made into integration with piston rod, piston rod passes the damping oil cylinder end cap and reseting pressuring spring is connected with piston, and fix with pressing plate and piston, with the radially reciprocating motion of piston along cover for seat, the damping oil cylinder piston is provided with the damping hole that is communicated with its two working chamber, and cover for seat is sleeved on motor mandrel away from flange one end, and can rotate around center deslagging pipe with motor mandrel; Described eccentric block vibration exciter comprises housing and central hollow axle, hollow shaft is fixed in the housing inner chamber by bearing is rotatable, hollow shaft one end is equipped with the driven member of time-delay centrifugal clutch, be fixed with eccentric block on the hollow shaft, eccentric block vibration exciter is fixed on the described motor housing by its housing, shell end and motor housing are tightly connected fixing away from described flange one end, hollow shaft is rotatable to be sleeved on outside the deslagging pipe of described center, the driven member of its end clutch is coated on described centrifugal clutch radial outside, and clutch driven member inside diameter surface is provided with the friction engageable surface that matches with described brake pad; Described smear metal cutterhead rotating mechanism comprises adapter sleeve, conical support member and smear metal cutterhead, conical support member is sleeved on the external surface of described eccentric block vibration exciter housing, housing is provided with conical support member axially is limited to position limiting structure on the housing, be provided with rubbing surface between adapter sleeve and the conical support member, and gapped; Adapter sleeve can be done eccentric rotation around housing, the smear metal cutterhead is fixed on the adapter sleeve, is positioned at described housing and described deslagging pipe front end, and and the two end between leave the gap, it is provided with the smear metal cutter head that extends vertically, has on the smear metal cutterhead from its front to the through hole of deslagging pipe port.

Further, the structure of clamping motor rotor is arranged on the described motor hollow core shaft, the structure of clamping motor stator is arranged in the motor housing, the motor winding solidifies with solventfree resin; The motor hollow core shaft has the extension of its stator of axial protrusion and rotor end-face away from described flange one end, and the cover for seat in the described time-delay centrifugal clutch is sleeved on this extension, and circumferentially fixing by key and motor hollow core shaft.

Further, also be provided with the connecting hole that has one way valve on the piston of described damping oil cylinder, under this connecting hole effect, when piston when resetting near described cover for seat axle center one side, damping oil cylinder two working chamber undampeds are connected.

Further, described adapter sleeve comprises overcoat and interior cover, and inside and outside cover can slide to axial, and circumferentially fixing, and inner surface of inner race and described conical support member external surface constitute described rubbing surface.

Further, described overcoat and described interior cover constitute by two parts vertically, wherein two overcoat opposite ends are provided with adpting flange, two overcoat far-ends are provided with the limiting structure that matches with two interior cover far-ends, and two overcoats are limited to its radially inboard by the interconnective while of its adpting flange with two interior covers, by changing the axial spacing of two overcoats, can adjust the axial spacings of cover in two, inner surface of inner race is a taper seat, in two the mutual mirrors of taper seat of cover to; Corresponding with cover in two, described housing be provided with respectively with two in the circular cone supporting surface that is complementary of the taper seats of cover, by this circular cone supporting surface, overcoat and in be enclosed within on the housing and axially limited; Described smear metal cutterhead is discoid, and its center is provided with a through hole, and the smear metal cutterhead is fixed on outer the putting near described deslagging pipe front end.

Further, described rigid central deslagging pipe also is provided with flexible coupling away from the other end of described smear metal cutterhead, and rigid central deslagging pipe links to each other with the pipeline in its downstream by this joint.

A kind of deepwater dredging ship of using above-mentioned vibrating type dredging head, this deepwater dredging ship comprises hull, pylon, hitch, gravel pump, vibrating type dredging head, control device; Pylon is fixed on the hull, pylon is provided with vertical guide rail, hitch is installed on the vertical guide rail, hitch is provided with or is connected with the manipulation device that it is moved up and down along vertical guide rail, gravel pump is fixed on the hitch, place, input port, gravel pump lower end is equipped with the rigid conduit section of extending downwards, rigid conduit section lower end is connected by the flexible coupling of a flexible coupling with vibrating type dredging head upper end, and be connected with perpendicular rigid deslagging pipe watertight, and dredging head is suspended in the below, control device control hitch, the work of gravel pump and dredging head.

Further, described gravel pump is suspended on the described hitch by a perpendicular rigid connecting rod, and hitch is provided with swing mechanism, and this swing mechanism links to each other with the perpendicular rigid connecting rod, and can drive the perpendicular rigid connecting rod around its axis rotary oscillation.

Further, described swing mechanism is made of oil cylinder, fork, and fork one end links to each other with the oil cylinder piston bar, and its other end links to each other with the perpendicular rigid connecting rod; Or constitute by oil cylinder, tooth bar, gear, its middle gear is installed on the perpendicular rigid connecting rod, and tooth bar links to each other with the piston rod of oil cylinder.

Further, described manipulation device is by hydraulic motor or motor-driven transmission mechanism, this transmission mechanism also comprises gear, the tooth bar power train that is arranged between described hitch and the described frame, and the work by power train realizes described hitch moving up and down along described vertical guide rail.

Further, described manipulation device comprises pulley system and hoisting mechanism, and wherein hoisting mechanism is installed on the described hull, and described hitch is hung on pylon by pulley system and hoisting mechanism.

Further, also comprise a permanent tensile machine in the described manipulation device, an end of the coiling rope in this perseverance tensile machine and the described hoisting mechanism links to each other, and makes the hanging force that acts on the described hitch constant by this perseverance tensile machine.

Further, described permanent tensile machine is made of a constant pressure oil cylinder.

Further, described flexible coupling comprises flange, flange seat, gland, bolt, the ring-shaped rubber pad, be inter-connected via a bolt joint fixing between flange seat and the gland, the flange upper edge circumferentially is evenly equipped with several circular holes, corresponding with it, flange seat and gland inner surface are provided with several axial circular holes, flange and flange seat are separately fixed at the end of two rigid conduits to be connected, flange by gland by spiral-lock in flange seat, all be pressed with the ring-shaped rubber pad between the axial inner surface of flange two sides and flange seat and gland, bolt passes the circular hole on rubber pad and the flange one by one and is fixed on flange seat, in the circular hole that is provided with in the gland, the diameter of bolt also respectively is provided with a spacer ring less than the internal diameter of circular hole on the flange between the circular hole on each bolt and the flange.

Further, place, input port, described gravel pump lower end is equipped with the some rigid conduit sections that are interconnected, these some rigid conduit lower ends are positioned on the same horizontal plane, and be the center of circle along equiblibrium mass distribution circumferentially and radially with the center vertical line of input port, gravel pump lower end, be provided with rigid support at its lower end between each rigid conduit section.

Because vibrating type dredging head of the present invention is applied with vibration force and shearing force simultaneously on bed mud when working, only make bed mud part or local liquefaction by vibration, thereby greatly reduce the resistance of bed mud, under the cutting of smear metal cutterhead, the bed mud major part is siphoned away by gravel pump with bulk, soft bed mud around dredging head, under the influence of vibration and current, can form and cave in, the silt that caves in is siphoned away by gravel pump immediately, therefore not only improves dredging efficient, and has reduced energy consumption.In addition, also reduced in the dredging process secondary pollution to water body.

Deepwater dredging ship of the present invention utilizes pylon to be provided with vertical guide rail, can adjust dredging depth easily, by changing the length of deslagging pipe between hitch and the gravel pump, can adjust the working depth of dredger by a larger margin; By the dredging head of varying number is set, can conveniently adjust the production capacity of dredger below gravel pump; By swing mechanism is set, can further adjust the working method of dredging head, to satisfy the needs that different compactness bed muds are dredged on hitch; After particularly permanent tensile machine being set in manipulation device, can feed automatically in the dredging; When hull fluctuated with stormy waves, the height and position of hitch on frame changed thereupon, thereby made the working depth of dredging head in bed mud keep stable, thereby wind and wave resistance interference capability when having improved the dredger operation.

Description of drawings

Fig. 1 is a vibrating type dredging head structural representation of the present invention;

Fig. 2 be among Fig. 1 A to view;

Fig. 3 is a B-B sectional view among Fig. 1;

Track schematic diagram when Fig. 4 works for the vibrating type dredging head;

Fig. 5 is a deepwater dredging ship structural representation of the present invention;

Fig. 6 is a dredging part connection diagram in Fig. 4 dredger;

Fig. 7 be among Fig. 5 C to partial view;

Fig. 8 is an E portion zoomed-in view among Fig. 5;

Fig. 9 is a D-D sectional view among Fig. 5;

Figure 10 is a dredging head movement locus schematic diagram;

Dredging head and rigid conduit 15 axial-movement track schematic diagrames when Figure 11 is vibration;

The movement locus schematic diagram of any on cutting cutterhead when Figure 12 is vibration;

Figure 13 surveys schematic diagram for the axle of this constant voltage control hitch device.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, vibrating type dredging head of the present invention comprises rigid central deslagging pipe 3, motor 5, time-delay centrifugal clutch 6, eccentric block vibration exciter 7, bite disc spins mechanism 9; Be fixed with a flange 4 on deslagging pipe 3 pipe shafts; Motor 5 fixes with deslagging pipe 3, wherein motor 5 shells, 51 1 ends and flange 4 are airtight fixing, motor 5 hollow core shaft 54 are sleeved on outside the deslagging pipe 3, and and deslagging pipe 3 external surfaces between leave the gap, the structure that clamping motor rotor 52 is arranged on the motor hollow core shaft 54, the structure that clamping motor stator 53 is arranged in the motor housing 51, the motor winding solidifies with solventfree resin; Time-delay centrifugal clutch 6 comprises cover for seat 62, cover for seat 62 is provided with several damping oil cylinders 63, this damping oil cylinder 63 is circumferentially uniform along cover for seat 62, wherein cylinder sleeve 631 is made into integration with cover for seat 62, damping oil cylinder end cap 632 is fixed on the end of cylinder sleeve 631, brake pad 634 surfaces are circular arc circumferentially, are made into integration with piston rod.Piston rod passes damping oil cylinder end cap 632 and reseting pressuring spring 636 is connected with piston 633, and fix with pressing plate 635 and piston 633, make brake pad 634 with the radially reciprocating motion of piston 633 along cover for seat 62, damping oil cylinder piston 633 is provided with damping hole 638 that is communicated with its two working chamber and the through hole 637 that has one way valve, under through hole 637 effects, when piston 633 under the effect of reseting pressuring spring 636, when resetting near cover for seat 62 axle center one side, two working chamber undampeds of damping oil cylinder 63 are connected, cover for seat 62 is sleeved on motor shaft 54 and axially protrudes on the extension of its stator and rotor end-face away from flange 4 one ends, and circumferentially fixing, and can be with axle 54 around 3 rotations of deslagging pipe by key 61 and motor shaft 54; Eccentric block vibration exciter 7 comprises housing 80 and central hollow axle 74, hollow shaft 74 is by two bearings 81 and support set 73 rotatable being fixed in housing 80 inner chambers, and by

chuck

79,82 and bearing 78 and housing 80 axial restraints, housing 80 1 ends and motor housing 51 1 ends are tightly connected fixing, chuck 82 is fixed deslagging pipe 3 ends and housing 80 other ends simultaneously, hollow shaft 74 is sleeved on outside the deslagging pipe 3, its upper end is set with the driven member 72 of a clutch 6, this driven member 72 is circumferentially fixing by key 77 and hollow shaft 74, driven member 72 is coated on the radial outside of time-delay centrifugal clutch 6, its inner surface is provided with the friction engageable surface 71 that matches with brake pad 634, is fixed with eccentric block 75 on the hollow shaft 74; Bite disc spins mechanism 9 comprises adapter sleeve, conical support member and smear metal cutterhead, wherein adapter sleeve comprises overcoat 95,98 and interior cover 97,

overcoat

95,98 and interior cover 97 constitute by two parts vertically, two overcoats 95 wherein, 98 opposite ends are provided with adpting flange, two overcoat far-ends are provided with the ring-type Ka Tai that matches with cover 97 far-ends in two, the radially inboard surface configuration of this Ka Tai is a hexagon, be complementary with it, cover 97 far-ends are provided with the radially outer edge shape and are similarly hexagonal collar flange 93 in two, two

overcoats

95,98 by the interconnective while of its adpting flange, two interior covers 97 are limited to its radially inboard, and match by flange 93 and overcoat remote card platform, and the two can be moved to axial, circumferentially fixing, interior cover 97 inner surfaces are taper seat, and the mutual mirror of taper seat of two interior covers 97 is to configuration; Corresponding with cover 97 in two, housing 80 be provided with two respectively with two in the conical support member 94 that is complementary of cover 97 taper seat, the shaft shoulder 76 of this two conical support member 94 by being provided with on housing 80 external surfaces, support spacer 96, platen 83 is clamped and fixed on the housing 80, while overcoat 95,98 match with two conical support members 94 by cover in two 97 is installed on the housing 80, axial length by changing spacer 92 is to adjust two

overcoats

95,98 axial spacing makes to overlap between 97 inner surfaces and two conical support set 94 external surfaces in two and leaves suitable radial clearance; Smear metal cutterhead 10 is discoid, is fixed on overcoat 98 ends by adapter sleeve 103, is the center of circle with its center on the smear metal cutterhead 10, is provided with several smear metal cutter heads 101, and smear metal cutterhead center is provided with a through hole 102.

Rigid central deslagging pipe 3 upper ends also are provided with flexible coupling 1, rigid central deslagging pipe 3 links to each other with the rigid conduit 15 in its downstream by this joint 1, joint 1, and flange 4 and deslagging pipe 3 between also be provided with and strengthen gusset 2, on the gusset 2 outward flange dishes motor cable plug 11 is arranged.

During work, dredging head is vertically suspended in midair on above it the pipeline 15 that is rigidly connected, and the pipeline 15 that is rigidly connected with it is circumferentially fixing.After connecting power supply, motor hollow core shaft 54 relative its

shells

51 and 3 rotations of deslagging pipe, and drive is installed in time-delay centrifugal clutch 6 rotations on its extension, piston rod in the damping oil cylinder 63 of centrifugal clutch moves to radial outside together with its brake pad 634 and piston 633 overcome stage clip 636 under action of centrifugal force pressure, and brake pad 634 is pressed on the friction engageable surface 71 in the clutch driven member 72, damping hole 638 on the piston 633 makes brake pad 634 move with slower speed to friction engageable surface 71, make the start-up time of engaging time hysteresis motor, at this moment between the section in a motor can be bordering on zero load startup; Along with brake pad 634 and friction engageable surface 71 are bonded with each other, clutch driven member 72 drives hollow shaft 74 rotations in the eccentric block vibration exciter 7, eccentric block 75 on the hollow shaft 74 is in rotation, the radial disbalance power of its generation drives whole dredging head and makes the high energy rate forging hammer pendular motion, dredging head axis and rigid conduit 15 axial-movement track schematic diagrames when Figure 11 has provided vibration; Owing to leave radial clearance between interior cover 97 inner surfaces in the bite disc spins mechanism 9 and conical support set 94 external surfaces on the housing 80, therefore, at two

overcoats

95,98 when cover 97 makes the hammer pendular motions with two conical support sets 94 in together with two, under the effect of the frictional force that produces on the contact surface of interior cover 97 and support set 94, in cover 97 around support set 94 low speed rotation, when cover 97 is made the hammer pendular motion with whole dredging head promptly, around the rotation of the axle center of deslagging pipe 3, and drive two

overcoats

95,98 and smear metal cutterhead 10 together rotates; The movement locus schematic diagram of cutting cutterhead when Fig. 4 has provided vibration, the G circle is depicted as housing 80 external surfaces among the figure, and the F circle is depicted as two overcoats, 95,98 external surfaces, and the axis of housing 80 is moving along the H circular pendulum, when overcoat 95,98 is made the hammer pendular motion with housing 80, rotate around housing 80 along the direction of arrow; The movement locus schematic diagram of any on cutting cutterhead when Figure 12 has provided vibration.

As Fig. 5, shown in Figure 6, deepwater dredging ship of the present invention comprises hull 25, frame 24, hitch 23, gravel pump 20, vibrating type dredging head 14, control device etc.Pylon 24 is installed on the hull 25, vertically hold up during work, but level is fallen during transition, and pylon 24 is provided with by two vertical guide rails that longitudinal moment type pipe constitutes forming pylon; Hitch 23 can slide up and down along vertical guide rail, and the hoisting mechanism 27 that is provided with on the assembly pulley 242 that is provided with of the pulley 241 that is provided with by its suspension centre place and pylon 24 tops and the hull 25 links to each other, wire rope 271 on the hoisting mechanism 27 is walked around assembly pulley 242, pulley 241, and link to each other with the piston rod 29 of oil cylinder 28 after walking around assembly pulley 242 once more, oil cylinder 28 links to each other with the standard constant voltage control device (not shown) of an outsourcing, under the control of this constant voltage control device, the pulling force that makes progress that oil cylinder 28 is provided to hitch 23 keeps constant, and under this state, piston rod 29 can stretch automatically with the variation that acts on the downward load on the suspension arrangement 23, and Figure 13 is this constant voltage control hitch schematic representation of apparatus.Gravel pump 20 is fixed on hitch 23 belows by rigidity connecting rod 22, place, input port, gravel pump 20 lower end is equipped with three rigid conduit sections 18 of extending downwards, these three rigid conduit section 18 lower ends are positioned at same plane, each rigid conduit section 18 lower end all is hung with a vibrating type dredging head 14 by a flexible coupling 16, flexible coupling 16 is connected rigid conduit section 18 lower ends with perpendicular rigid efferent duct 15 watertights of dredging head 14 upper ends, rigidity efferent duct 15 is connected by flexible coupling 1 watertight with center deslagging pipe 3 in the dredging head 14, gravel pump 20 outputs link to each other with gravel pump 26 on being arranged on hull 25 by pipeline 21, and gravel pump 26 outputs are connected to output channel 261.

As shown in Figure 7, also be provided with swing mechanism on the support 234 of hitch 23, this swing mechanism is made of gear 231, tooth bar 233, oil cylinder 232, its middle gear 231 is coaxial fixing with rigidity connecting rod 22, tooth bar 233 links to each other with the piston rod of oil cylinder 232, by stretching of oil cylinder piston bar, drive tooth bar 233 and move back and forth, and back and forth rotate by gear 231 driving rigidity connecting rods 22.

As shown in Figure 8, flexible coupling 16 comprises flange 164, flange seat 161, gland 166, bolt 162, ring-shaped rubber pad 163, interconnect fixing by bolt 162 between flange seat 161 and the gland 166, there are several circular holes in the circumferentially equal portion in flange 164 upper edges, corresponding with it, flange 164 and flange seat 161 are separately fixed at two rigid conduits 15 to be connected, 18 end, flange 164 by gland 166 by spiral-lock in flange seat 161, all be pressed with ring-shaped rubber pad 163 between flange 164 two sides and flange seat 161 and the gland 166 axial inner surfaces, bolt 162 passes the circular hole on rubber pad 163 and the flange 164 one by one, bolt 162 diameters also respectively are provided with a spacer ring 165 less than the internal diameter of circular hole on the flange 164 between the circular hole on each bolt 162 and the flange 164.

As shown in Figure 9, the lower end of three rigid conduit sections 18 at place, input port, gravel pump 20 lower end distributes with equilateral triangle in same horizontal plane.

25 also are provided with hoisting mechanism 30 on the hull, partly mention with entry by 30 pairs of dredgings that are made of gravel pump, dredging head and pipeline of this hoisting mechanism and operate; Pylon 24, hoisting mechanism 30 and hoisting mechanism 27 can move front and back on the track of square body 25 axis, to satisfy the requirement of different operating modes; The operation (not shown) be holded up and be set level to pylon 24 can with oil cylinder.

During work, at first by handling hoisting mechanism 27, make 14 dives of vibrating type dredging head to appropriate depth, and locking hoisting mechanism 27, adjust the pulling force of oil cylinder 28, make the gravity of dredging part and the support force of water-bed bed mud and the pulling force of oil cylinder 28 reach balance, the motor 5 that starts on gravel pump 20, the dredging head by maneuver control device is worked then, carries out dredging operation.Wherein, dredging head 14 is by orbiting motion shown in Figure 10, the movement locus of dredging head 14 and rigid conduit 15 axis as shown in figure 11, the movement locus schematic diagram of any on the cutting cutterhead during then for vibration shown in Figure 12.

Water-bed bed mud is under the cutting of the vibration of dredging head 14 and dredging head end smear metal cutterhead, and partial liquefaction also forms the mud that has certain clod and sandstone, and soft bed mud can form under the influence of vibration and current and cave in around dredging head; The quarrel slurry that gravel pump 20 forms the dredging head end sucks and flows to its downstream gravel pump 26, and mud is finally drained into the stockyard by gravel pump 26, thereby realizes the dredging operation to the bottom.For more solid bed mud, in dredging head 14 work, by handling the swing mechanism on the hitch 23, make rigidity connecting rod 22 drive gravel pump 20 reciprocal rotary oscillations, and make reciprocal rotary oscillation around the vertical center line of gravel pump 20 by rigid conduit 18,15 drive dredging heads 14.After on the hitch 23 swing mechanism being set, can strengthen the dredging work area of dredging head 14, to improve the production efficiency of dredger, adapt to the bed mud dredging of different compactnesss.Because vibration is violent during dredging head 14 work, like this after between rigid conduit 18 and the rigid conduit 15 and between between rigid conduit 15 and the dredging head 14 flexible coupling being set, can effectively reduce vibration on the dredging head to the transmission of gravel pump, endanger to prevent that vibration from producing gravel pump 20, hitch 23 and hull 25, and energy-conservation.

After applying permanent pulling force upwards on the hitch 23, when hull 25 when fluctuate in the bottom relatively with water level fluctuation, oil cylinder 28 is flexible by its piston rod 28, can adjust in real time the position of hitch 23 relative pylons 24, thereby make dredging head 14 act on constant pressure on the bed mud, to guarantee dredging head 14 stable at water-bed dredging depth.When hull 25 rose, under dredging head 14 actions of gravity, oil cylinder piston bar 28 was protruding, reaches balance until dredging head gravity, bed mud support force, oil cylinder pulling force; When hull 25 descended, the pulling force that dredging head 14 acts on the wire rope 271 diminished, and oil cylinder piston bar 28 is regained, and reaches balance once more until dredging head gravity, bed mud support force, oil cylinder pulling force.

When the dredging part of being made up of gravel pump, dredging head and pipeline thereof need not worked under permanent state of tension, hitch 23 also can reached by hydraulic motor under the driving of the drive unit that is made of gear, tooth bar power train, along moving up and down of described vertical guide rail, wherein the gear in the drive unit, tooth bar power train are arranged between hitch 23 and the frame 24.

The swing mechanism of the setting on the above-mentioned hitch 23 also can be made of hydraulic motor, also can be made of with the drive unit that connecting rod that links to each other and fork constitute hydraulic motor or motor or oil cylinder.

According to the needs to different production capacity, input port, above-mentioned gravel pump 20 lower end place can be connected to, the rigid conduit section 18 of varying numbers such as five, seven.By middle one, the periphery is that square distributes when the quantity of rigid conduit section 18 is five; In the time of seven, be that regular hexagon distributes by one of centre, periphery.

Claims

1. a vibrating type dredging head is characterized in that, comprises rigid central deslagging pipe, motor, time-delay centrifugal clutch, eccentric block vibration exciter, bite disc spins mechanism; Be fixed with a mating face and the perpendicular flange of its axis on the deslagging pipe pipe shaft of described center; Described motor and described deslagging pipe fix, and wherein motor housing one end and described flange are airtight fixing, and the motor hollow core shaft is sleeved on outside the deslagging pipe, and and the deslagging tube outer surface between leave the gap; Described time-delay centrifugal clutch comprises cover for seat, cover for seat is provided with several damping oil cylinders, this damping oil cylinder is circumferentially uniform along cover for seat, the damping oil cylinder end cap is fixed on the end of cylinder sleeve, the brake pad surface is a circular arc circumferentially, and be made into integration with piston rod, piston rod passes the damping oil cylinder end cap and reseting pressuring spring is connected with piston, and fix with pressing plate and piston, with the radially reciprocating motion of piston along cover for seat, cover for seat is sleeved on outside the described deslagging pipe, and one end and described motor mandrel fix away from described flange one end, and can rotate around the deslagging pipe with mandrel; Described eccentric block vibration exciter comprises housing and central hollow axle, and hollow shaft is fixed in the housing inner chamber by bearing is rotatable, and hollow shaft one end has the driven member of the centrifugal clutch of delaying time, and is fixed with eccentric block on the hollow shaft; Eccentric block vibration exciter is fixed on the described motor housing by its housing, shell end and motor housing are tightly connected fixing away from described flange one end, hollow shaft is rotatable to be sleeved on outside the described deslagging pipe, the driven member of clutch is coated on described centrifugal clutch radial outside, and clutch driven member footpath inner surface is provided with the friction engageable surface that matches with described brake pad; Described smear metal cutterhead rotating mechanism comprises adapter sleeve, conical support member and smear metal cutterhead, conical support member is sleeved on the external surface of the housing in the described eccentric block vibration exciter, housing is provided with conical support member axially is limited to position limiting structure on the housing, adapter sleeve is sleeved on outside the conical support member, be provided with rubbing surface between adapter sleeve and the conical support member, and it is gapped, adapter sleeve can be done eccentric rotation around housing, the smear metal cutterhead is fixed on the adapter sleeve, be positioned at described housing and described deslagging pipe front end, and and the two end between leave the gap, it is provided with the smear metal cutter head that extends vertically, and the smear metal cutterhead has from its front to the through hole of deslagging pipe port.

2. vibrating type dredging head as claimed in claim 1 is characterized in that, the structure of clamping motor rotor is arranged on the described motor hollow core shaft, and the structure of clamping motor stator is arranged in the motor housing, and the motor winding solidifies with solventfree resin; The motor hollow core shaft has the extension of its stator of axial protrusion and rotor end-face away from described flange one end, and the cover for seat in the described time-delay centrifugal clutch is sleeved on this extension, and circumferentially fixing by key and motor hollow core shaft.

3. vibrating type dredging head as claimed in claim 2, it is characterized in that, also be provided with the connecting hole that has one way valve on the piston of described damped cylinder, under this connecting hole effect, when piston when resetting near described cover for seat axle center one side, damped cylinder two working chamber undampeds are connected.

4. vibrating type dredging head as claimed in claim 3 is characterized in that, described adapter sleeve comprises overcoat and interior cover, and inside and outside cover can slide to axial, and circumferentially fixing, and inner surface of inner race and described conical supports external surface constitute described rubbing surface.

5. vibrating type dredging head as claimed in claim 4, it is characterized in that, described overcoat and described interior cover constitute by two parts vertically, wherein two overcoat opposite ends are provided with adpting flange, two overcoat far-ends are provided with the limiting structure that matches with cover far-end in two, two overcoats are by the interconnective while of its adpting flange, two interior covers are limited to its radially inboard, by changing the axial spacing of two overcoats, can adjust the axial spacing of two interior covers, inner surface of inner race is a taper seat, in two the mutual mirrors of taper seat of cover to; Corresponding with cover in two, described housing be provided with respectively with two in the circular cone supporting surface that is complementary of the taper seats of cover, by this circular cone supporting surface, overcoat and in be enclosed within on the housing and axially limited; Described smear metal cutterhead is discoid, and its center is provided with a through hole, and the smear metal cutterhead is fixed on outer the putting near described deslagging pipe front end.

6. vibrating type dredging head as claimed in claim 5 is characterized in that, described rigid central deslagging pipe also is provided with flexible coupling away from the other end of described smear metal cutterhead, and center deslagging pipe links to each other with the pipeline in its downstream by this joint.

7. a deepwater dredging ship is characterized in that, comprises hull, pylon, hitch, gravel pump, vibrating type dredging head, control device; Pylon is fixed on the hull, pylon is provided with vertical guide rail, hitch is installed on the vertical guide rail, hitch is provided with or is connected with the manipulation device that it is moved up and down along vertical guide rail, gravel pump is fixed on the hitch, place, input port, gravel pump lower end is equipped with the rigid conduit section of extending downwards, the rigid pipe section lower end is connected by the flexible coupling of a flexible coupling with vibrating type dredging head upper end, and be connected with perpendicular rigid deslagging pipe watertight, and dredging head is suspended in the below, control device control hitch, the work of gravel pump and dredging head.

8. deepwater dredging ship as claimed in claim 7, it is characterized in that, described gravel pump is suspended on the described hitch by a perpendicular rigid connecting rod, hitch is provided with swing mechanism, this swing mechanism links to each other with the perpendicular rigid connecting rod, and can drive the perpendicular rigid connecting rod around its axis rotary oscillation.

9. deepwater dredging ship as claimed in claim 8 is characterized in that described swing mechanism is made of oil cylinder, fork, and fork one end links to each other with the oil cylinder piston bar, and its other end links to each other with the perpendicular rigid connecting rod; Or constitute by oil cylinder, tooth bar, gear, its middle gear is installed on the perpendicular rigid connecting rod, and tooth bar links to each other with the piston rod of oil cylinder.

10. deepwater dredging ship as claimed in claim 9, it is characterized in that, described manipulation device is by hydraulic motor or motor-driven transmission mechanism, this transmission mechanism also comprises gear, the tooth bar power train that is arranged between described hitch and the described pylon, and the work by power train realizes described hitch moving up and down along described vertical guide rail.

11. deepwater dredging ship as claimed in claim 9 is characterized in that described manipulation device comprises pulley system and hoisting mechanism, wherein hoisting mechanism is installed on the described hull, and described hitch is hung on pylon by pulley system and hoisting mechanism.

12. deepwater dredging ship as claimed in claim 11, it is characterized in that, also comprise a permanent tensile machine in the described manipulation device, an end of the coiling rope in this perseverance tensile machine and the described hoisting mechanism links to each other, and makes the hanging force that acts on the described hitch constant by this perseverance tensile machine.

13. deepwater dredging ship as claimed in claim 12 is characterized in that, described permanent tensile machine is the constant oil cylinder of an oil pressure.

14. as the described deepwater dredging ship of claim 7 to 12, it is characterized in that, described flexible coupling comprises flange, flange seat, gland, bolt, the ring-shaped rubber pad, be inter-connected via a bolt joint fixing between flange seat and the gland, the flange upper edge circumferentially is evenly equipped with several circular holes, corresponding with it, flange seat and gland inner surface are provided with several axial circular holes, flange and flange seat are separately fixed at the end of two rigid conduits to be connected, flange by gland by spiral-lock in flange seat, all be pressed with the ring-shaped rubber pad between the axial inner surface of flange two sides and flange seat and gland, bolt passes the circular hole on rubber pad and the flange one by one and is fixed on flange seat, in the circular hole that is provided with in the gland, the diameter of bolt also respectively is provided with a spacer ring less than the internal diameter of circular hole on the flange between the circular hole on each bolt and the flange.

15. deepwater dredging ship as claimed in claim 14, it is characterized in that, place, input port, described gravel pump lower end is equipped with the some rigid conduit sections that are interconnected, these some rigid conduit lower ends are positioned on the same horizontal plane, and be the center of circle along equiblibrium mass distribution circumferentially and radially with the center vertical line of input port, gravel pump lower end, be provided with rigid support at its lower end between each rigid conduit section.