CN110044592A - Trailing suction hopper dredger hobboing cutter drag head pilot system - Google Patents
Trailing suction hopper dredger hobboing cutter drag head pilot system Download PDFInfo
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- CN110044592A CN110044592A CN201910294744.1A CN201910294744A CN110044592A CN 110044592 A CN110044592 A CN 110044592A CN 201910294744 A CN201910294744 A CN 201910294744A CN 110044592 A CN110044592 A CN 110044592A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0053—Cutting or drilling tools
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Abstract
The present invention provides a kind of trailing suction hopper dredger hobboing cutter drag head pilot system, belongs to dredging work experimental technique field.Trailing suction hopper dredger hobboing cutter drag head pilot system provided by the invention, including support frame, rake teeth, rake teeth roller, torque angular transducer, roller shaft coupling, motor shaft coupling, hydraulic motor, swinging frame, rotary joint, purlin vehicle, rake arms, high-pressure hydraulic pump, capture card, processing terminal；It can the parameters such as dynamometry torque, revolving speed, power and its matching properties, and judge the compliance of measurement result and match best construction parameter, complete rating test.The beneficial effects of the present invention are: effectively solve the problems, such as hobboing cutter drag head installation variety classes rake teeth to torque, revolving speed, power, the angle measuring multiple parameters of hobboing cutter under the cutting test and different operating conditions of a variety of soil properties, the relationship that rake teeth rolls revolving speed, transverse moving speed and soil property of constructing can be studied from test, Rule Summary provides reference to study efficient hobboing cutter drag head mining clay device.
Description
Technical field
The invention belongs to dredging work experimental technique fields, are related to a kind of trailing suction hopper dredger hobboing cutter drag head pilot system.
Background technique
Trailing suction hopper dredger is a kind of most popular ship type in dredging work field, and traditional drag head is that it is excavated under water
The capital equipment of the soil properties such as soil, sandstone.Traditional drag head is that entire row assembles rake teeth under movable guard, when operation rake teeth drag head from
In weight and the lower insertion soil of fulcrum bar of the spring pressure effect, broken soil then is pulled by rake arms.Tradition rake is found in engineering practice
When excavating the hard soil properties such as rock, the ability of breaking ground of rake teeth is restricted head, and rake teeth cutting power is insufficient, while excavating depth
Limited, dredger construction efficiency substantially reduces.
To solve the above-mentioned problems, drag head construction efficiency is improved, traditional drag head mining clay mode is improved, is proposed
Rake teeth, i.e., be mounted on roller by the design of hobboing cutter drag head, and when rake teeth mining clay does rotation and translation motion, increases rake teeth
Cut the cutting force of soil.For hobboing cutter drag head, the design speed of drag head, drum rotation speed, the size selection of torque are particularly important.
Currently, hobboing cutter drag head exists in practical trailing suction hopper dredger work progress excavates power mismatch, digging operation face
Out-of-flatness, is even difficult to use in certain construction operating condition operating environments, and reason is not yet have trailing suction hopper dredger hobboing cutter drag head
Construction parameter calibration experimental ability, fail to develop the pilot system of calibration hobboing cutter drag head construction parameter, i.e., can not be directed to
Operation soil property and trailing suction hopper dredger route speed propose efficient hobboing cutter drag head revolving speed, therefore carry out corresponding pilot system
Research it is most important.
Summary of the invention
It is an object of the present invention to overcome the deficiencies of the prior art and provide a kind of trailing suction hopper dredger hobboing cutter drag head test system
System, can the parameters such as dynamometry torque, revolving speed, power, angle and its matching properties, and by the design of experimental study hobboing cutter drag head
The drag head speed of a ship or plane, hobboing cutter revolving speed, torque select the matching relationship with operation soil property, provide ginseng to design efficient hobboing cutter drag head
It examines.
In order to achieve the above objectives, the present invention provides the following technical scheme that
A kind of trailing suction hopper dredger hobboing cutter drag head pilot system, including support frame, rake teeth, rake teeth roller, torque angle sensor
Device, roller shaft coupling, motor shaft coupling, hydraulic motor, swinging frame, rotary joint, purlin vehicle, rake arms, high-pressure hydraulic pump, capture card,
Processing terminal.
Hydraulic motor, torque angular transducer, rake teeth roller are sequentially arranged at below support frame, and the output of hydraulic motor
Axis passes through the input axis connection of motor shaft coupling and torque angular transducer, and the output shaft of torque angular transducer is joined by roller
Axis device is connect with one end of rake teeth roller；Several row's rake teeths are equipped on the outside of rake teeth roller, and rake teeth roller can be around its axis
Rotation, and rake teeth is driven to cut soil；The other end of rake teeth roller is connect by rotary joint with high-pressure hydraulic pump, and rake teeth roller
Surface it is axially disposed have a certain number of nozzles, high-pressure hydraulic pump inputs high pressure water into rake teeth roller and sprays through nozzle,
Reach the function of cleaning rake teeth and auxiliary cutting soil.
Further, support frame is mounted below swinging frame, and purlin vehicle is connect by rake arms with swinging frame, and swinging frame can be around it
Trunnion axis rotation, and whole device is driven to swing；Purlin vehicle bottom is equipped with pulley, can navigate by water on test platform wave current sink, wave
Flowing water trench bottom is equipped with test soil.
Further, swinging frame can be rotated around the trunnion axis of its own, driven entire pilot system to swing, be with vertical
0 °, rotational angle is 0 °~50 °.
Further, rake teeth roller is columnar structured, can be rotated around its own central axis, the surface edge of rake teeth roller
It is axially provided with a certain number of nozzles, high pressure water is sprayed by nozzle in work.
Further, the both ends of rake teeth roller are limited by bearing and bearing block, and the bearing block is fixedly mounted on support
Below frame.
Further, bearing is rolling bearing, and both ends have rubber seal, can work under water.
Further, rake teeth is to be similar to " L " type；And rake teeth has two kinds of patterns of narrow tooth and wide tooth, is mounted on rake teeth
On roller, setting angle can require to be adjusted according to system testing, and soft test soil or demand cutting depth are smaller, can
To select low-angle to install, soil property is slightly hard or cutting depth is larger, can choose wide-angle installation.
Further, roller shaft coupling can use yielding coupling, and there is flat key slot at both ends, connect rake teeth roller and torque
Sensor.
Further, motor shaft coupling can use yielding coupling, and there is flat key slot at both ends, connect hydraulic motor output shaft
And torque sensor.
Further, rotary joint can be around its own axis Arbitrary Rotation, and does not influence to harrow under working state of system
The rotation of dental roller.
Further, purlin vehicle is mobile by design speed on the wave current sink of test by the pulley of bottom.
Further, torque angular transducer is to fit together torque sensor and angular transducer, angular transducer
It covers on the output shaft on the right side of torque sensor, the receiver of angular transducer is attached on torque sensor；In the present invention, torque
Angular transducer is used to measure angle relatively vertical in the torque value, revolving speed and rake teeth rotation process of hobboing cutter.
Processing terminal includes drive module, measurement module and processing module；Drive module is to control hydraulic motor, swing
Frame, purlin turner are made；Measurement module obtains torque value, revolving speed and the rake teeth for the hobboing cutter that torque angular transducer measures by capture card
Relatively vertical angle-data in rotation process；Processing module is connect with measurement module, for calculate rake teeth cutting power and
Soil excavation amount, and according to soil excavation amount determine test compliance, and for design speed determine hobboing cutter best torque and
Optimum speed range.
Further, processing module calculates the power of rake teeth cutting according to the torque and revolving speed of hobboing cutter.
Further, processing module draws hobboing cutter gear hobbing path curves according to hobboing cutter gear hobbing Movement Locus Equation, determines
Soil excavation amount.Wherein, hobboing cutter gear hobbing Movement Locus Equation is specific as follows according to the Design of Rotation of the speed of a ship or plane and hobboing cutter:
xk=-x0-R·sin[wt+2π/z·(k-1)]
yk=-Rcos [wt+2 π/z (k-1)]
Wherein, x0Indicate horizontal displacement caused by the speed of a ship or plane, xkIndicate that kth row's (k=1~z) rake teeth moves in a forward direction
Horizontal distance, ykIndicate height of the kth row's rake teeth apart from mud face, R indicates the radius from rake teeth centre of the drum to rake teeth, w table
Show that the angular speed of rake teeth roller rotation, t indicate the time of movement, z indicates total number of rows of rake teeth on rake teeth roller section.
Further, hobboing cutter gear hobbing path curves are drawn according to hobboing cutter gear hobbing Movement Locus Equation, wherein abscissa table
Show the horizontal distance that rake teeth moves in a forward direction, ordinate indicates height of the kth row's rake teeth apart from mud face, different curve tables
Show the track of the rake teeth of different location on rake teeth roller.Failing the region being added to below multiple groups curve is the mud for failing to excavate
Soil amount, subtracting the soil amount for failing to excavate with the deep calculating total volume of digging can be obtained soil excavation amount.
In the present invention, select reamer around axis rolling circumference kinematic parameter and hobboing cutter horizontal shifting feed motion parameter for
The matching of calibrating parameters, circular motion parameter and feeding parameter is most important to the efficiency of hobboing cutter cutting soil, rolling circumference fortune
Dynamic parameter corresponds to revolving speed, and hobboing cutter horizontal shifting feed motion parameter corresponds to the speed of a ship or plane.The speed of a ship or plane is as known conditions, the same speed of a ship or plane
Lower different rotating speeds correspond to different power and soil excavation amount, and the speed of a ship or plane is fast, the low drag head that is likely to result in of revolving speed drags on mud face
Cross or soil excavation amount be insufficient, therefore using soil excavation amount as a performance assessment criteria, excavation amount need to reach a certain ratio with
On, it is only effective rotation cutting, can thus match to obtain calibration conclusion by the multi-group data of test data sheet: in a certain boat
Under fast a m/s, the revolving speed need >=b r/min of hobboing cutter can be only achieved the rotation excavation amount of certain proportion (%).Further, consider rake
The power of tooth cutting, i.e. optimum working efficiency, and then obtain the optimum speed of hobboing cutter.
Further, processing module determines test compliance according to soil excavation amount, that is, judges whether soil excavation amount reaches
Performance assessment criteria；And best torque and optimum speed are matched for design speed according to the power that soil excavation amount and rake teeth are cut
Range.
Compared with prior art, the beneficial effects of the present invention are: realize the design of hobboing cutter drag head, variety classes rake teeth
It is more to cut soil property torque, revolving speed, power, angle under different operating conditions for installation and replacement and angular adjustment, effectively solution hobboing cutter drag head
Parameter measurement problem, establishes rake teeth angle and thickness of cutting, the relationship of cutting force, and by the speed of a ship or plane, soil excavation amount and torque, turn
Speed, power match, summarize the different speed of a ship or plane, excavation amount and torque, revolving speed, power, angle regular relationship, to study efficient rolling
Blade harrow head mining clay device provides reference.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of traditional drag head；
Fig. 2 is the side view of pilot system provided by the invention；
Fig. 3 is the perspective view of hobboing cutter drag head provided by the invention；
Fig. 4 is the main view of hobboing cutter drag head provided by the invention；
Fig. 5 is the perspective view of support frame provided by the invention；
Fig. 6 is the sectional view of bearing block provided by the invention；
Fig. 7 is the outline drawing of rake teeth provided by the invention；
Fig. 8 is the perspective view of rake teeth roller provided by the invention；
Fig. 9 is the implementation flow chart of test method provided by the invention.
Figure 10 is hobboing cutter gear hobbing path curves figure provided by the invention；Abscissa indicates that rake teeth moves in a forward direction
Dynamic horizontal distance, ordinate indicate height of the kth row's rake teeth apart from mud face；Different curves indicate different location on rake teeth roller
Rake teeth track.
Numeral mark in figure:
Traditional drag head 100, movable guard 101, traditional rake teeth 102；
Support frame 1, hydraulic motor mounting base 1a, torque angular transducer mounting base 1b, bearing mounting base 1c, bearing block 2,
Elastic rubber circle 2a, bearing 3, rake teeth 4, rake teeth roller 5, torque angular transducer 6, roller shaft coupling 7, motor shaft coupling 8 are hydraulic
Motor 9, swinging frame 10, rotary joint 11, purlin vehicle 12, rake arms 13, pulley 14, test soil 15.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is the structural schematic diagram of traditional drag head, and traditional drag head 100 is that entire row assembles traditional rake teeth under movable guard 101
102, tradition rake teeth 102 is embedded in soil under drag head self weight and the effect of fulcrum bar of the spring pressure when operation, is then drawn by rake arms
Dynamic broken soil.In engineering practice, traditional drag head 100 is when excavating the hard soil properties such as rock, the ability of breaking ground of traditional rake teeth 102
It is restricted, rake teeth cutting power is insufficient, while excavating depth is limited, and dredger construction efficiency substantially reduces.
And the invention proposes hobboing cutter drag head testing programs, and rake teeth is mounted on roller, when rake teeth mining clay, which does, revolves
Turn and translational motion, increases the cutting force of rake teeth cutting soil, and have studied hobboing cutter drag head and cut soil property under different operating conditions
Torque, revolving speed, power, angle measuring multiple parameters problem draw hobboing cutter gear hobbing path curves, establish rake teeth angle and cutting
The relationship of thickness, cutting force, and by the speed of a ship or plane, soil excavation amount and torque, revolving speed, power match, summarize the different speed of a ship or plane, excavation amount
With torque, revolving speed, power, angle regular relationship, provide reference to study efficient hobboing cutter drag head mining clay device.
As shown in Fig. 2 to Fig. 8, a kind of trailing suction hopper dredger hobboing cutter drag head pilot system, including support frame 1, rake teeth 4, rake teeth
Roller 5, torque angular transducer 6, roller shaft coupling 7, motor shaft coupling 8, hydraulic motor 9, swinging frame 10, rotary joint 11,
Purlin vehicle 12, rake arms 13, high-pressure hydraulic pump, capture card, processing terminal.
Wherein, support frame 1, for installing the components of pilot system；Hydraulic motor 9 is horizontally arranged at the peace of support frame 1
It fills on seat board, provides power for pilot system；Motor shaft coupling 8 connects hydraulic motor 9 and torque angular transducer 6；Roller connection
Axis device 7 connects torque angular transducer 6 and rake teeth roller 5；It is fixed at the top of torque angular transducer 6 on support frame 1,
Trunnion axis is connect with hydraulic motor 9 and rake teeth roller 5 respectively by shaft coupling；The both ends of rake teeth roller 5 pass through bearing 3 and bearing
Seat 2 limits, the right end axis connection rotary joint 11 of rake teeth roller 5, and rake teeth 4 is installed on rake teeth roller 5, and rake teeth 4 is to be similar to " L "
Type, rake teeth roller 5 rotates when working around own axes, drives 4 cutting test soil 15 of rake teeth；Rotary joint 11 connects high pressure
Water pump, high-pressure hydraulic pump input high pressure water into rake teeth roller 5, and high pressure water sprays auxiliary cutting examination out of rake teeth roller 5 nozzle
Test soil 15；Support frame 1 is welded on swinging frame 10；Purlin vehicle 12 is connect by rake arms 13 with swinging frame 10, and vehicle 12 bottom in purlin is set
Pulley 14 is set to realize that entire pilot system is mobile by design speed on wave current sink.
Further, support frame 1 is the steel construction with certain bearing capacity, is fixed on swinging frame 10 using welding manner
On, hydraulic motor mounting base 1a, torque angular transducer mounting base 1b, bearing mounting base 1c, such as Fig. 4 are provided on support frame 1
It is shown；Wherein hydraulic motor mounting base 1a is for installing hydraulic motor 9, and torque angular transducer mounting base 1b is for installing torque
Angular transducer 6, bearing mounting base 1c is for installing rake teeth roller 5.
Further, swinging frame 10 can be rotated around trunnion axis, and entire pilot system is driven to swing, with it is vertical be 0 °, rotation
Angle is 0 °~50 °.
Further, the pulley 14 of 12 bottom of purlin vehicle can install two rows.
Further, the both ends of rake teeth roller 5 are limited by bearing 3 and bearing block 2, and the bearing block 2 is fixedly mounted on
1 lower section of support frame.
Further, bearing 3 is rolling bearing, and both ends have rubber seal, can work under water.
Further, flexible rubber circle 2a is set between bearing block 2 and bearing 3, plays sealing function.
Further, rake teeth 4 has two kinds of patterns of narrow tooth and wide tooth, is mounted on rake teeth roller 5, setting angle can basis
System testing requires to be adjusted.
Further, rake teeth roller 5 is columnar structured, can be rotated around its own central axis, 5 surface edge of rake teeth roller
A certain number of nozzles axially are provided with, spray high pressure water in nozzle in work.
Further, processing terminal includes drive module, measurement module and processing module；Drive module is to control hydraulic horse
It works up to 9, swinging frame 10 and purlin vehicle 12；Measurement module collects data by capture card；Torque angular transducer 6 can pass through nothing
It is relatively vertical in 4 rotation process of the torque value of line radiofrequency signal or electromagnetic pulse signal real-time measurement hobboing cutter, revolving speed and rake teeth
Angle, and transfer data to capture card real-time recorded data；Processing module is connect with measurement module, to calculate rake teeth cutting
Power and soil excavation amount, test compliance is determined according to soil excavation amount, and for design speed determine the best of hobboing cutter
Torque and optimum speed range.
The test method of trailing suction hopper dredger hobboing cutter drag head pilot system provided by the invention, as shown in figure 9, including following mistake
Journey:
(1) test soil, installation and debugging pilot system are laid in wave current sink；
(2) purlin vehicle 12 and swinging frame 10 are adjusted, so that rake teeth 4 is moved to scheduled position, the rake being mounted on rake teeth roller 5
Tooth 4 is contacted with the test soil in wave current sink；
(3) according to test soil property select torque angular transducer 6 gear, middle matter clay and it is following convenient for dredging soil adopt
With low torque gear, other soil use high torque gear, the setting driving speed of a ship or plane and rake teeth drum rotation speed；
Torque angular transducer 6 is provided with two grades, i.e. low torque shelves and high torque shelves, every grade of torque value tool that can be measured
There is certain range, torque value is directly related with soil property, therefore needs to choose according to soil property before starting measurement module
The measuring gear of torque angular transducer 6.
(4) start drive module and measurement module, purlin vehicle 12 is moved forward along wave current sink with the default speed of a ship or plane, passed through
Rake arms 13 drives the component installed on the swinging frame 10 and swinging frame 10 that are attached thereto to move forward with identical speed, with test mud
Effect of the rake teeth 4 of 15 contact of soil by frictional force drives the rotation of rake teeth 4 to advance, cuts so that rake teeth roller 5 is rotated around bearing 3
Cut test soil 15；
(5) it during the test of trailing suction hopper dredger hobboing cutter drag head pilot system advance cutting test soil 15, is fixed on
Torque angular transducer 6 on support frame 1 by radio frequency signal or electromagnetic pulse signal, acquire in real time hobboing cutter torque,
Relatively vertical angle in 4 rotation process of revolving speed and rake teeth, and these data are transferred to capture card record, corresponding boat
Speed also matches record simultaneously；
(6) starting processing module calculates the power and soil excavation amount of rake teeth cutting；
(6.1) power and record of rake teeth cutting are calculated according to the torque of hobboing cutter and revolving speed；
(6.2) hobboing cutter gear hobbing path curves are drawn according to hobboing cutter gear hobbing Movement Locus Equation, determines soil excavation amount；
Hobboing cutter gear hobbing Movement Locus Equation proposed by the present invention, specific as follows:
xk=-x0-R·sin[wt+2π/z·(k-1)]
yk=-Rcos [wt+2 π/z (k-1)]
Wherein, x0Indicate horizontal displacement caused by the speed of a ship or plane, xkIndicate that kth row's (k=1~z) rake teeth moves in a forward direction
Horizontal distance, ykIndicate height of the kth row's rake teeth apart from mud face, R indicates the radius from rake teeth centre of the drum to rake teeth, w table
Show that the angular speed of rake teeth roller rotation, t indicate the time of movement, z indicates total number of rows of rake teeth on rake teeth roller section.
According to the hobboing cutter gear hobbing path curves that above-mentioned hobboing cutter gear hobbing Movement Locus Equation is drawn, as shown in Figure 10,
In, abscissa indicates the horizontal distance that rake teeth moves in a forward direction, and ordinate indicates height of the kth row's rake teeth apart from mud face
Degree, different curves indicate the track of the rake teeth of different location on rake teeth roller.
Hobboing cutter gear hobbing Movement Locus Equation is related with the revolving speed of hobboing cutter and the speed of a ship or plane, can by hobboing cutter gear hobbing path curves
Intuitively to reflect: the revolving speed of hobboing cutter is bigger, and adjacent curve is nearlyr (seeming more intensive)；Revolving speed is smaller, and adjacent curve is remoter (to be seen
Get up more sparse)；The speed of a ship or plane is bigger, annular longer (the seeming more flat) of curve；The speed of a ship or plane is smaller, and the annular of curve is shorter (to be seen
Get up and more compress).Failing the region being added to below multiple groups curve is the soil amount for failing to excavate, and calculates total volume deeply with digging
Subtracting the soil amount for failing to excavate can be obtained soil excavation amount.
Referring to Fig.1 shown in 0, the small Delta Region below every toothrow curve be the toothrow dig less than soil, usually it is latter
Toothrow can dig up a part of previous toothrow and dig the soil not fallen；If the curve of last toothrow cannot cover under the first toothrow
The small triangle of side, then this part soil has no idea to dig up, and calculates the excavation ratio within the scope of excavating depth accordingly.
(7) adjustment one-parameter variation, i.e., adjust rake teeth drum rotation speed under the same driving speed of a ship or plane, completes one-parameter measurement,
Test compliance is determined according to soil excavation amount by processing module, that is, judges whether soil excavation amount reaches performance assessment criteria, if
Reach, test conjunction rule, irregularity is tested if being not achieved, in the case where rule are closed in test, continues multiple groups test, record is different
The combined hobboing cutter drag head speed of a ship or plane, torque, revolving speed, power, angle and soil excavation amount data, then by processing module according to soil
The power that excavation amount and rake teeth 4 are cut completes parameter calibration for design speed matching best torque and optimum speed range,
In the case where testing irregularity, returns to step (3) reset driving speed of a ship or plane and rake teeth drum rotation speed is tested.
In the present invention, parameter selected by the parameter calibration is that reamer is horizontal horizontal around axis rolling circumference kinematic parameter and hobboing cutter
It is moved into kinematic parameter, the matching of circular motion parameter and feeding parameter is most important to the efficiency of hobboing cutter cutting soil, rolls
Circular motion parameter corresponds to revolving speed；Hobboing cutter horizontal shifting feed motion parameter corresponds to the speed of a ship or plane, and the speed of a ship or plane is as known conditions, together
Different rotating speeds correspond to different power and soil excavation amount under one speed of a ship or plane, and the speed of a ship or plane is fast, the low drag head that is likely to result in of revolving speed is in mud
It is pulled through on face or soil excavation amount is insufficient, therefore using soil excavation amount as a performance assessment criteria, excavation amount needs to reach a certain
More than ratio, it is only effective rotation cutting, can thus match to obtain calibration conclusion by the multi-group data of test data sheet:
Under a certain speed of a ship or plane a m/s, the revolving speed need >=b r/min of hobboing cutter can be only achieved the rotation excavation amount of certain proportion (%).Further,
Consider the power of rake teeth cutting, i.e. optimum working efficiency, and then obtains the optimum speed of hobboing cutter.
In the present invention, hobboing cutter drag head system carries out parameter matching according to soil property and test planning, and speed on the ground, rake teeth excavate
Thickness, hob teeth thickness of cutting, cutter diameter and cutting layer thickness these parameters are test setup parameter, the equivalent speed of a ship or plane and meter
Calculating revolving speed is then the calibration conclusion matched by the multi-group data of test data sheet.Such as rake suction is carried out for lightweight clay to dredge
The design parameter selection of the experiment measurement module of ship hobboing cutter construction parameter is as follows:
Wherein, calculating revolving speed is the optimum speed that the test method provided through the invention determines, the equivalent speed of a ship or plane then passes through
Revolving speed is calculated to further calculate to obtain.
In the above-mentioned embodiment for carrying out the construction of trailing suction hopper dredger hobboing cutter for lightweight clay, traditional rake teeth thickness of cutting D1
It can achieve 160mm for 50mm, hobboing cutter drag head thickness of cutting D2 of the present invention；When traditional drag head speed on the ground V1 is 1.02m/s, protect
Hold excavation amount under the same conditions: equivalent speed of a ship or plane V2=is calculated in V1*D1=V2*D2, i.e. 1.02*50=V2*160
0.32m/s；The speed of a ship or plane is set using 0.32m/s as purlin vehicle, is carried out test, using test method provided by the invention, is passed through multiple groups
It is 64r/min that test matching, which obtains hobboing cutter optimum speed,.
In summary, the present invention can set the speed of a ship or plane and drum rotation speed；It can according to need replacement rake teeth；It may be implemented
Acquired in real time in cutting process rake teeth torque, revolving speed, power, angle-data (torque sensor be it is existing, be used for other field
And aspect)；It can be realized parameter matching, obtain rule, and optimum matching parameter is obtained by Con trolling index.
Foregoing description is only the description to present pre-ferred embodiments, is not any restriction to the scope of the invention.Appoint
Any change or modification what those skilled in the art makes according to the technology contents of the disclosure above should all regard
For equivalent effective embodiment, the range of technical solution of the present invention protection is belonged to.
Claims (8)
1. a kind of trailing suction hopper dredger hobboing cutter drag head pilot system, it is characterised in that: including support frame (1), rake teeth (4), rake teeth rolling
Cylinder (5), torque angular transducer (6), roller shaft coupling (7), motor shaft coupling (8), hydraulic motor (9), swinging frame (10), rotation
Adapter (11), purlin vehicle (12), rake arms (13), high-pressure hydraulic pump, capture card, processing terminal；
The hydraulic motor (9), torque angular transducer (6), rake teeth roller (5) are sequentially arranged at below support frame (1), and liquid
The output shaft of pressure motor (9) passes through the input axis connection of motor shaft coupling (8) and torque angular transducer (6)；The torque angle
Degree sensor (6) is used to measure angle relatively vertical in the torque value, revolving speed and rake teeth rotation process of hobboing cutter, and output shaft is logical
Roller shaft coupling (7) is crossed to connect with one end of rake teeth roller (5)；Several row's rake teeths are equipped on the outside of the rake teeth roller (5)
(4), and rake teeth roller (5) can be rotatable around its axis, and rake teeth (4) is driven to cut soil；The other end of the rake teeth roller (5)
Connect by rotary joint (11) with high-pressure hydraulic pump, and rake teeth roller (5) surface it is axially disposed have a certain number of nozzles,
High-pressure hydraulic pump inputs high pressure water into rake teeth roller (5) and sprays through the nozzle, reaches cleaning rake teeth and auxiliary cutting soil
Function；
Support frame as described above (1) is mounted below swinging frame (10), and the purlin vehicle (12) is connected by rake arms (13) and swinging frame (10)
It connects, the swinging frame (10) can rotate around its trunnion axis, and whole device is driven to swing；Purlin vehicle (12) bottom is equipped with cunning
It takes turns (14), can be navigated by water on test platform wave current sink, wave current bottom of gullet is equipped with test soil (15)；
The processing terminal includes drive module, measurement module and processing module；The drive module is to control hydraulic motor
(9), swinging frame (10), purlin vehicle (12) work；The measurement module is measured by capture card acquisition torque angular transducer (6)
Relatively vertical angle-data in the torque value of hobboing cutter, revolving speed and rake teeth (4) rotation process；The processing module and measurement module
Connection determines test compliance for calculating the power and soil excavation amount of rake teeth cutting, and according to soil excavation amount, and is directed to
Design speed determines the best torque and optimum speed range of hobboing cutter.
2. trailing suction hopper dredger hobboing cutter drag head pilot system according to claim 1, it is characterised in that: the rake teeth roller
(5) it to be columnar structured, can rotate around its own central axis.
3. trailing suction hopper dredger hobboing cutter drag head pilot system according to claim 1, it is characterised in that: the rake teeth roller
(5) both ends are limited by bearing (3) and bearing block (2), and the bearing block (2) is fixedly mounted below support frame (1).
4. trailing suction hopper dredger hobboing cutter drag head pilot system according to claim 3, it is characterised in that: the bearing (3) is
Rolling bearing, both ends have rubber seal, can work under water.
5. trailing suction hopper dredger hobboing cutter drag head pilot system according to claim 1, it is characterised in that: rake teeth (4) tool
There are two kinds of patterns of narrow tooth and wide tooth, and setting angle of the rake teeth (4) on rake teeth roller (5) is adjustable.
6. trailing suction hopper dredger hobboing cutter drag head pilot system according to claim 1, it is characterised in that: the torque angle passes
Sensor (6) is to fit together torque sensor and angular transducer, and angular transducer covers defeated on the right side of torque sensor
On shaft, the receiver of angular transducer is attached on torque sensor.
7. trailing suction hopper dredger hobboing cutter drag head pilot system according to claim 1, it is characterised in that: the roller shaft coupling
(7) and motor shaft coupling (8) is yielding coupling, and the both ends of the two are equipped with flat key slot.
8. trailing suction hopper dredger hobboing cutter drag head pilot system according to claim 1, it is characterised in that: the rotary joint
(11) rotation of rake teeth roller (5) can not be influenced under its own axis Arbitrary Rotation, working condition.
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| CN201910294744.1A CN110044592B (en) | 2019-04-12 | 2019-04-12 | Hob head test system of trailing suction hopper dredger |
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| CN110044592B CN110044592B (en) | 2020-09-29 |
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