CN208777352U - A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle - Google Patents
A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle Download PDFInfo
- Publication number
- CN208777352U CN208777352U CN201821062230.0U CN201821062230U CN208777352U CN 208777352 U CN208777352 U CN 208777352U CN 201821062230 U CN201821062230 U CN 201821062230U CN 208777352 U CN208777352 U CN 208777352U
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- CN
- China
- Prior art keywords
- suction hose
- movable guard
- suction
- drag head
- automatic adjustment
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Abstract
What is involved is a kind of drag suction dredger drag heads for a kind of free floating suction dredge(r) drag head at automatic adjustment rotation of the utility model angle.A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle is made of movable guard, jet water spout, suction hose and hydraulic device；The suction hose top is arc-shaped, and pin hole is provided with below suction hose top, and middle part to the rear portion of suction hose is coniform siphunculus, and the diameter at rear portion is greater than the diameter at middle part；Movable guard and suction hose are flexibly connected by pin hole, the tail portion of movable guard is match with suction hose arc-shaped and is located in suction hose, the tail portion of movable guard is bent upwards, its side-looking direction is horizontal U-shaped, hydraulic device is connected with by shaft in the tail end of movable guard, the upper end of suction hose is provided with protrusion, and shaft is provided in protrusion, and the other end of hydraulic device is movably connected in the top of suction hose by shaft；Jet water spout is additionally provided with above suction hose.
Description
Technical field
What is involved is a kind of rake suctions for a kind of free floating suction dredge(r) drag head at automatic adjustment rotation of the utility model angle
It dredges drag head peculiar to vessel, specifically a kind of passive type dredger drag head.
Background technique
In Modern Port and navigation channel, in order to ensure the trouble-free operation of ship, need to safeguard navigation channel, it is common at present
Dredged using drag suction dredger, but existing drag suction dredger is in construction, can not be true because riverbed is uneven
Guarantor's movable guard is bonded with earth's surface, leads to effect decline of breaking ground, and the water of drag head sucking increases, and mud balance in drag head is caused to drop
It is low, it is directed at production efficiency decline.As can the movable guard of drag head can the rugged change of adjusted stream bed in time during dredging
Change, will effectively change above-mentioned phenomenon.
Drag head used in trailing suction hopper dredger is divided to two kinds by regulative mode at present: i.e. active drag head and passive drag head.
Active drag head is that hydraulic cylinder is installed between suction pipe and movable guard, control oil circuit is introduced, over the ground according to drag head
Angle and depth of dredging, to drag head movable guard, angle carries out manual adjustment over the ground.
Passive drag head is to be connected between suction pipe and movable guard with active pull rod, and movable guard is in the stroke range of pull rod
In free state, or by manually fixing pull rod according to digging is deep, so that movable guard can not rotate.The shortcomings that this regulative mode is
Precision is low, bad adaptability to the depth of water, it is difficult to grasp exact angle, and time-consuming.
Above two drag head all cannot in real time, automatically adjust drag head movable guard to the pressure of soil.Hydraulic oil is installed
The drag head of cylinder, it is necessary to be equipped with hydraulic power unit, decompressor, hydraulic oil connecting pipe, control and feedback system etc., above equipment knot
Once structure complexity system leaks, environmental pollution will be caused.The harbour service region higher and higher to environmental protection requirement, choosing
With not only safety but also reliably alternate device is imperative.It is therefore necessary to design the new product of one kind to meet actual use
Demand.
Summary of the invention
The utility model is in view of this, provide a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle, energy
It is enough that the excavation angle of drag head is automatically adjusted according to seabed situation, in the case where guaranteeing mining effect, substantially increase work effect
Rate, and the risk without hydraulic oil leakage, have good using effect.
A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle is by movable guard, jet water spout, suction hose and hydraulic
Device composition；The suction hose top is arc-shaped, pin hole is provided with below suction hose top, the middle part of suction hose is extremely
Rear portion is coniform siphunculus, and the diameter at rear portion is greater than the diameter at middle part；Movable guard and suction hose are flexibly connected by pin hole,
The tail portion of movable guard is match with suction hose arc-shaped and is located in suction hose that the tail portion of movable guard is bent upwards, side
Apparent direction is horizontal U-shaped, is connected with hydraulic device by shaft in the tail end of movable guard, the upper end of suction hose is provided with
Protrusion, is provided with shaft in protrusion, and the other end of hydraulic device is movably connected in the top of suction hose by shaft；It is absorbing water
Jet water spout is additionally provided with above pipe, the nozzle of jet water spout is located at the front end of suction hose nozzle, and is additionally provided on jet water spout
The end of branched pipe, branched pipe and hydraulic device connects, the seawater pressure for providing hydraulic power for hydraulic device, in jet water spout
Power is not less than 1MPa.
Rake teeth is additionally provided with below the movable guard, rake teeth is the protrusion of a row or multi-row equal length, for facilitating pick
Take the silt or mud in seabed.
The hydraulic device is the hydraulic stem of Marine fish, and hydraulic stem includes cylinder sleeve, tappet and piston, with branch
The high pressure sea water that pipe provides is working media；Cylinder sleeve, tappet and the piston is closed using 316L stainless steel, titanium alloy or Kazakhstan
Gold.
Water pump is connected on the jet water spout, seawater high pressure is pressed into jet water spout by water pump；The tail end of suction hose connects
There is sludge pipe, the seawater will be mixed with silt is discharged.
The branched pipe is the hose that can be bent, and hose is flexible metal protective sleeve pipe.
The bath bottom of the tube is additionally provided with guide protrusions, to be bonded seabed when jet water spout contacts seabed, and protects
Angle when card jet water spout and seabed contact is within the specified scope.
Wear-resistant friction layer is additionally provided in the guide protrusions.
The wear-resistant friction layer is detachable.
The wear-resistant friction layer is spheroidal graphite cast-iron, stainless steel or ceramics；Preferably wear-resistant ceramic when using ceramics is wear-resisting
Ceramics be using aluminum oxide or silicon carbide as primary raw material, using rare metal oxide as flux, 700 degree of high temperature of Jing Yiqian
Corundum ceramic made of roasting, then the product being composed respectively with specific rubber and organic/inorganic adhesive；Specific rubber is
Silicon rubber or fluorubber.
It is additionally provided with lifting lug above the movable guard, hoist cable is connected on lifting lug, facilitates hanged movable guard, bath
Pipe, suction hose and hydraulic device.
When in use, the free floating suction dredge(r) drag head that the utility model automatically adjusts rotation angle is put to sea bed,
Start water pump, water pump draws seawater, and raises the silt on sea bed, simultaneously by jet water spout nozzle to sea bed high speed ejection
Rake teeth excavates silt, the rubble on sea bed, and suction hose is blended with silt, the seawater of rubble is drawn and sucks on dredger
In storage silo, high pressure sea water is also endlessly pumped into hydraulic device by the branched pipe on jet water spout simultaneously, to guarantee to inhale
There is suitable angle between water pipe and movable guard；When encountering the barrier for being difficult to take, under the power traction of ship, outside
Power is more than the thrust of hydraulic device, and movable guard can stir upwards, so that the position is smoothly crossed, after external force disappearance, activity
Cover resets, and excavates to next location.
The utility model is skillfully constructed, structure is simple, easy to use, and work efficiency is high, and hydraulic oil leakage is not present
Danger, have good application and popularizations value.
Detailed description of the invention
The description provided by following accompanying drawings, can more intuitively understand the utility model, in which:
Fig. 1 is that a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle of the utility model is stretched in hydraulic device
Structural schematic diagram under exhibition state；
Fig. 2 is that a kind of automatic adjustment of the utility model rotates the free floating suction dredge(r) drag head at angle in hydraulic device pressure
Structural schematic diagram under contracting state.
Specific embodiment
Referring to attached drawing 1-2, a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle is by movable guard 1, jet water spout
2, suction hose 3 and hydraulic device 4 form；2 top of suction hose is arc-shaped, is provided with below 3 top of suction hose
Pin hole 5, middle part to the rear portion of suction hose 3 are coniform siphunculus, and the diameter at rear portion is greater than the diameter at middle part；Movable guard 1 and water suction
Pipe 3 is flexibly connected by pin hole 5, and the tail portion of movable guard 1 be match with suction hose 3 arc-shaped and is located at water suction 3 and manages
Interior, the tail portion of movable guard 1 is bent upwards, and side-looking direction is horizontal U-shaped, is connected in the tail end of movable guard 1 by 6 activity of shaft
It is connected to hydraulic device 4, the upper end of suction hose 3 is provided with protrusion 7, is provided with shaft 8, the other end of hydraulic device 4 in protrusion 7
The top of suction hose 3 is movably connected in by shaft 8；Jet water spout 2, the nozzle of jet water spout 2 are additionally provided in the top of suction hose 3
Positioned at the front end of 3 nozzle of suction hose, and branched pipe is additionally provided on jet water spout 2, the end of branched pipe and hydraulic device 4 connects
It connects, for providing hydraulic power for hydraulic device 4, the seawater pressure in jet water spout 2 is not less than 1MPa.
Rake teeth 9 is additionally provided with below the movable guard 1, rake teeth 9 is the protrusion of a row or multi-row equal length, for convenient
Pick takes the silt or mud in seabed.
The hydraulic device 4 is the hydraulic stem of Marine fish, and hydraulic stem includes cylinder sleeve, tappet and piston, to divide
The high pressure sea water that branch pipe provides is working media；Cylinder sleeve, tappet and the piston uses 316L stainless steel, titanium alloy or Kazakhstan
Alloy.
Water pump is connected on the jet water spout 2, seawater high pressure is pressed into jet water spout 2 by water pump；The tail end of suction hose 3 connects
It is connected to sludge pipe, the seawater will be mixed with silt is discharged.
The branched pipe is the hose that can be bent, and hose is flexible metal protective sleeve pipe.
2 bottom of jet water spout is additionally provided with guide protrusions 10, to be bonded seabed when jet water spout 2 contacts seabed,
And guarantee angle when jet water spout 2 and seabed contact within the specified scope.
Wear-resistant friction layer 11 is additionally provided in the guide protrusions 10.
The wear-resistant friction layer 11 is detachable.
The wear-resistant friction layer 11 is spheroidal graphite cast-iron, stainless steel or ceramics；Preferably wear-resistant ceramic when using ceramics, it is resistance to
Mill ceramics be using aluminum oxide or silicon carbide as primary raw material, it is 700 degree of Jing Yiqian high using rare metal oxide as flux
Corundum ceramic made of temperature roasting, then the product being composed respectively with specific rubber and organic/inorganic adhesive；Specific rubber
For silicon rubber or fluorubber.
Be additionally provided with lifting lug 12 above the movable guard 1, be connected with hoist cable on lifting lug 12, facilitate hanged movable guard 1,
Jet water spout 2, suction hose 3 and hydraulic device 4.
When in use, the free floating suction dredge(r) drag head that the utility model automatically adjusts rotation angle is put to sea bed,
Start water pump, water pump draws seawater, and raises the silt on sea bed, simultaneously by 2 nozzle of jet water spout to sea bed high speed ejection
Rake teeth 9 excavates silt, the rubble on sea bed, and suction hose 3 is blended with silt, the seawater of rubble is drawn and sucks on dredger
Storage silo in, high pressure sea water is also endlessly pumped into hydraulic device 4 by branched pipe on jet water spout 2 simultaneously, to protect
There is suitable angle between card suction hose 3 and movable guard 1；When encountering the barrier for being difficult to take, led in the power of ship
Under drawing, external force is more than the thrust of hydraulic device 4, and movable guard 1 can stir upwards, to smoothly cross the position, disappear in external force
After mistake, movable guard 1 resets, and excavates to next location.
Claims (8)
1. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle, it is characterised in that: by movable guard, jet water spout, suction
Water pipe and hydraulic device composition；The suction hose top is arc-shaped, and pin hole is provided with below suction hose top, is absorbed water
The middle part of pipe to rear portion is coniform siphunculus, and the diameter at rear portion is greater than the diameter at middle part；Movable guard and suction hose by pin hole into
Row is flexibly connected, and the tail portion of movable guard be match with suction hose arc-shaped and in suction hose, the tail portion of movable guard to
Upper bending, side-looking direction are horizontal U-shaped, are connected with hydraulic device, suction hose by shaft in the tail end of movable guard
Upper end be provided with protrusion, shaft is provided in protrusion, the other end of hydraulic device is movably connected in suction hose by shaft
Top；Jet water spout is additionally provided with above suction hose, the nozzle of jet water spout is located at the front end of suction hose nozzle, and is washing by water
Branched pipe is additionally provided on pipe, the end connection of branched pipe and hydraulic device is washed by water for providing hydraulic power for hydraulic device
Seawater pressure in pipe is not less than 1MPa；
Rake teeth is additionally provided with below the movable guard, rake teeth is the protrusion of a row or multi-row equal length.
2. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle according to claim 1, it is characterised in that:
The hydraulic device is the hydraulic stem of Marine fish, and hydraulic stem includes cylinder sleeve, tappet and piston, is provided with branched pipe
High pressure sea water is working media；Cylinder sleeve, tappet and the piston uses 316L stainless steel, titanium alloy or Hastelloy.
3. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle according to claim 1, it is characterised in that:
The branched pipe is the hose that can be bent, and hose is flexible metal protective sleeve pipe.
4. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle according to claim 1, it is characterised in that:
The bath bottom of the tube is additionally provided with guide protrusions, to be bonded seabed when jet water spout contacts seabed, and guarantees jet water spout
Angle when contacting with seabed is within the specified scope.
5. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle according to claim 4, it is characterised in that:
Wear-resistant friction layer is additionally provided in the guide protrusions.
6. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle according to claim 5, it is characterised in that:
The wear-resistant friction layer is detachable.
7. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle according to claim 5 or 6, feature exist
In: the wear-resistant friction layer is spheroidal graphite cast-iron, stainless steel or ceramics.
8. a kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle according to claim 1, it is characterised in that:
It is additionally provided with lifting lug above the movable guard, hoist cable is connected on lifting lug, facilitates hanged movable guard, jet water spout, suction hose
And hydraulic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062230.0U CN208777352U (en) | 2018-07-05 | 2018-07-05 | A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062230.0U CN208777352U (en) | 2018-07-05 | 2018-07-05 | A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208777352U true CN208777352U (en) | 2019-04-23 |
Family
ID=66153721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821062230.0U Withdrawn - After Issue CN208777352U (en) | 2018-07-05 | 2018-07-05 | A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN208777352U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824532A (en) * | 2018-07-05 | 2018-11-16 | 长江南京航道工程局 | A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle |
| CN110565722A (en) * | 2019-09-02 | 2019-12-13 | 武汉理工大学 | Movable double-reamer protection device for preventing slurry from diffusing |
| CN113175016A (en) * | 2021-04-26 | 2021-07-27 | 江苏省水利机械制造有限公司 | Composite underwater power dredging drag harrow |
| CN114753430A (en) * | 2022-05-26 | 2022-07-15 | 长江河湖建设有限公司 | Sediment removal device for hydraulic engineering |
-
2018
- 2018-07-05 CN CN201821062230.0U patent/CN208777352U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824532A (en) * | 2018-07-05 | 2018-11-16 | 长江南京航道工程局 | A kind of free floating suction dredge(r) drag head at automatic adjustment rotation angle |
| CN108824532B (en) * | 2018-07-05 | 2023-07-11 | 长江南京航道工程局 | Automatic adjust rotation angle's self-propelled trailing suction hopper dredger drag head |
| CN110565722A (en) * | 2019-09-02 | 2019-12-13 | 武汉理工大学 | Movable double-reamer protection device for preventing slurry from diffusing |
| CN110565722B (en) * | 2019-09-02 | 2021-12-21 | 武汉理工大学 | Movable double-reamer protection device for preventing slurry from diffusing |
| CN113175016A (en) * | 2021-04-26 | 2021-07-27 | 江苏省水利机械制造有限公司 | Composite underwater power dredging drag harrow |
| CN114753430A (en) * | 2022-05-26 | 2022-07-15 | 长江河湖建设有限公司 | Sediment removal device for hydraulic engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20230711 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190423 Effective date of abandoning: 20230711 |