CN108914876B - A kind of dredging plant experimental rig - Google Patents
A kind of dredging plant experimental rig Download PDFInfo
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- CN108914876B CN108914876B CN201811085094.1A CN201811085094A CN108914876B CN 108914876 B CN108914876 B CN 108914876B CN 201811085094 A CN201811085094 A CN 201811085094A CN 108914876 B CN108914876 B CN 108914876B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/02—Hydraulic models
Abstract
The present invention relates to a kind of dredging plant experimental rigs, including mobile mechanism, braced frame, rabbling mechanism, sink and control device, the mobile mechanism connect with braced frame, drive the movement of braced frame, rabbling mechanism is fixed in the braced frame, the rabbling mechanism includes driving mechanism, regulating mechanism and stirring blade, the stirring blade is connect with driving mechanism, the rotation of driving mechanism driving stirring blade, liquid-solid two-phase body in sink is stirred, the stirring blade is connect with regulating mechanism, regulating mechanism adjusts position and the stirring angle of stirring blade, the mobile mechanism and driving mechanism are connect with control device, the control of receiving control device, experimental rig structure of the invention is simple, it is easy to operate, optimal processing parameter of the dredging plant under different operating conditions can be obtained, for improving dredging efficiency, it is energy saving , drop low cost aspect play a significant role, have good actual effect.
Description
Technical field
The present invention relates to training of channel technical fields, and in particular to a kind of dredging plant experimental rig.
Background technique
" irrigation channel irrigation " is the major way of northern area field irrigation, such as: Yellow River irrigation, the irrigated area Meng He.But it is related
Big (the Yellow River mean sediment concentration 6.7kg/m of silt content of river3), silt easily deposits, and causes water conservancy channel capacity to reduce, influences irrigated area
Draw/use water, improve the planting cost of crops indirectly and constrains the adjustment of agricultural structure.
Carrying out dredging to shoal materials using mechanical equipment is effective means, has developed in succession twist suction both at home and abroad, rake is inhaled
Formula is large-scale desilting equipment and Amphibious type, amphibious strand suction, long-armed self-propulsion type, waterpipe, helix drum submersible type, the rotation of representative
The wheeled underwater equal middle-size and small-size desilting equipment for representative.But above equipment, based on mechanical structure, power is big, energy consumption is high and it is big to need
Area puts sandy ground.Currently, carrying the silt of suspension to downstream using River Sediment Carrying Capacity, it is considered the dredging of water conservancy channel
Feasible program.By the stirring of mechanical equipment, the silt of deposition is stirred into dispersion, makes it in suspension, passes through the drive of water flow
Effect, can effectively realize the dredging of channel.Wherein, solid reaches is called from minimum mixing speed needed for the suspended state of bottom completely
Critical solid suspension revolving speed.Therefore, how to realize that the suspended state of silt is current urgent problem at lower power.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, providing a kind of dredging plant experimental rig, lead to
It crosses and simulates specific dredging plant operating condition, adjust dredging plant revolving speed, obtain the changed power of dredging plant, can accurately obtain thin
The power changing rule and operation optimal parameter of equipment are dredged, dredging practical for guidance, raising efficiency, energy saving, reduction are dredged
Dredging cost etc. has vital effect.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of dredging plant experimental rig, including mobile mechanism, braced frame, rabbling mechanism, sink and control device,
The mobile mechanism connect with braced frame, drives the movement of braced frame, and rabbling mechanism, institute are fixed in the braced frame
Stating rabbling mechanism includes driving mechanism, regulating mechanism and stirring blade, and the stirring blade is connect with driving mechanism, driving mechanism driving
The rotation of stirring blade is stirred the liquid-solid two-phase body in sink, and the stirring blade is connect with regulating mechanism, regulating mechanism tune
The position and stirring angle, the mobile mechanism and driving mechanism for saving stirring blade are connect with control device, receiving control device
Control.
Further, the mobile mechanism is fixed on pedestal, including mobile motor, the output shaft of the mobile motor with
Lead screw connection, is equipped with screw on the lead screw, is additionally provided with directive slide track on the pedestal, for the movement to braced frame into
Row guiding.
Further, the braced frame includes the telescoping tube of upper bracket and multiple adjustable in length, the telescoping tube
Upper end is fixed on the bottom face of upper bracket, and the lower end surface of one of telescoping tube is fixedly connected with screw, remaining telescoping tube
Lower end surface be fixed with sliding block, the sliding block, which is arranged, to be installed on directive slide track.
Further, the regulating mechanism includes rotating turret and angle scale, and the rotating turret two sides are fixedly connected with optical axis,
The optical axis is rotatablely connected by vertical bearing and braced frame, is fixed with expansion bracket, the expansion bracket one on the rotating turret
End is fixedly connected with bogie, and the other end and transmission axis connection, the end part of driving shaft are fixed with stirring blade, and the angle scale is solid
Due in braced frame, the optical axis passes through angle disk center, and angle scale is fixedly connected by fastener with rotating turret.
Further, the expansion bracket be L-type, the first pars contractilis and the second pars contractilis including adjustable in length, first
Pars contractilis one end is fixedly connected with rotating turret, and the other end is vertical with one end of the second pars contractilis to be connect, the second pars contractilis it is another
End and transmission axis connection.
Further, the angle scale is equipped with the sliding slot of arc, and the center of circle of the sliding slot and the center of circle of angle scale are concentric,
The fastener uses two threaded rods, and threaded rod passes through sliding slot and is tightened on rotating turret, and nut has been screwed on threaded rod, described
Nut compresses angle scale, and the fixation of rotating turret and angle scale is realized by the frictional force of nut and angle scale.
Further, the angle scale is equipped with graduation mark, convenient accurately to be controlled the rotational angle of rotating turret.
Further, the driving mechanism includes stirring motor and retarder, and the stirring motor is fixed on rotating turret,
The output shaft of stirring motor is the input shaft of retarder, and the output shaft of retarder, which is not installed by constant velocity cardan joint with transmission shaft, to be stirred
Mix one end connection of knife.
Further, the stirring blade includes the endless knife that the circular shear blade being sequentially distributed and multiple diameters are sequentially increased
Piece, circular shear blade and annular blade form pyramidal structure, and the circular shear blade is fixedly connected with transmission shaft, circular shear blade and annular
Blade is connected as one by the evenly distributed connection sheet of the circumferencial direction along stirring blade pyramidal structure.
Further, the control device is installed in control cabinet, and the control device includes controller, the controller
The work of driving mechanism and mobile mechanism is controlled, machine governor and power measurement instruments are also equipped in the control cabinet, to drive
Motivation structure and mobile mechanism carry out accurate control and the power of Real-time Feedback driving mechanism and mobile mechanism.
Beneficial effects of the present invention:
Experimental rig of the invention, structure is simple, easy to adjust, by adjusting telescoping tube, the height of adjustable stirring blade
Degree is adjusted the angle of stirring blade, can obtain dredging power of agitator parameter under different operating conditions, and simulate by rotating rotating turret
The operating condition of dredging plant under different operating conditions, experimental rig through the invention, it is available difference operating conditions under, dredging plant
Optimal processing parameter, for improve dredging efficiency, it is energy saving, drop low cost aspect play a significant role, have good
Actual effect.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the restriction to the application for explaining the application.
Fig. 1 is overall structure top view of the present invention；
Fig. 2 is overall structure main view of the present invention；
Fig. 3 is braced frame side view of the present invention；
Fig. 4 is braced frame main view of the present invention；
Fig. 5 is braced frame top view of the present invention；
Fig. 6 is braced frame perspective view of the present invention；
Fig. 7 is rabbling mechanism main view of the present invention；
Fig. 8 is rabbling mechanism side view of the present invention；
Fig. 9 is rabbling mechanism top view of the present invention；
Figure 10 is angle scale structural schematic diagram of the present invention；
Figure 11 is enlarged drawing at the A in Fig. 9 of the present invention；
Figure 12 is stirring blade main view of the present invention；
Figure 13 is stirring blade side view of the present invention；
Figure 14 is stirring blade perspective view of the present invention；
Wherein, 1. mobile motor, 2. pedestals, 3. lead screws, 4. screws, 5. sliding rails, 6. sinks, 7. braced frames, 7-1.
One support rod, 7-2. second support bar, 7-3. telescoping tube, 8. control devices, 9. rotating turrets, 10. angle scales, 10-1. sliding slot,
10-2. fixing bolt, 10-3. fixture nut, 10-4. threaded rod, 10-5. fastening nut, 11. optical axises, 12. vertical bearings, 13.
Expansion bracket, 14. transmission shafts, 15. stirring blades, 15-1. circular shear blade, 15-2. annular blade, 15-3. connection sheet, 16. stirring electricity
Machine, 17. retarders, 18. constant velocity cardan joints.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In order to facilitate narration, if there is "upper", "lower", " left side " " right side " printed words in the present invention, only expression and attached drawing itself
Upper and lower, left and right direction it is consistent, not to structure rise restriction effect, it is only for convenient for description the present invention and simplification retouch
It states, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, and be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
As background technique is introduced, how existing dredging plant realizes the suspended state of silt at lower power
It is current urgent problem, in view of the above-mentioned problems, present applicant proposes a kind of dredging plant experimental rigs.
In a kind of exemplary embodiment of the application, as represented in figures 1 through 14, a kind of dredging plant experimental rig, including it is solid
Due to the mobile mechanism on pedestal, the mobile mechanism connect with braced frame, drives the movement of braced frame, the support frame
Frame is connected with rabbling mechanism and regulating mechanism, and the rabbling mechanism includes driving mechanism and stirring blade, the stirring blade and driving
Mechanism connection, driving mechanism drives the rotation of stirring blade, to liquid-solid two-phase body (water, mud in the sink 6 being fixed on pedestal
It is husky) it is stirred, the stirring blade is connect with regulating mechanism, and regulating mechanism adjusts position and the stirring angle of stirring blade, described
Mobile mechanism and driving mechanism are connect with control device 8, and the control of receiving control device works.
The mobile mechanism includes mobile motor 1, and the mobile motor is fixed on pedestal 2 by attachment base, the shifting
The output shaft of dynamic motor is connected with lead screw 3 by shaft coupling, and screw 4, the screw and braced frame 7 are equipped on the lead screw
Connection, drives the movement of braced frame, the mobile mechanism further includes the guiding for being fixed on pedestal and being distributed in lead screw two sides
Sliding rail 5.
The braced frame includes upper bracket, and the upper bracket includes two first support bar 7-1 disposed in parallel,
Second support bar 7-2 disposed in parallel is fixed between first support bar described in two, the both ends of the first support bar
Bottom surface is equipped with telescoping tube 7-3, and the bottom surface in the middle part of one of first support bar is equipped with telescoping tube, and the telescoping tube includes solid
Determine part and telescopic section, the adjustment hole that ten corresponding diameters are 6mm be equipped on the fixed part and telescopic section,
Distance is 10mm between adjacent adjustment hole, in use, insertion adjusts bolt in different adjustment holes, can carry out pars contractilis and stretch out admittedly
Determine the adjusting of minister's degree, and then adjust the length of telescoping tube, the pars contractilis bottom end of the telescoping tube in the middle part of first support bar is solid
It is scheduled on screw, screw can drive the movement of braced frame along moving for lead screw, the telescoping tube positioned at first support bar both ends
The bottom end of pars contractilis is fixed with sliding block 7-4, and the sliding block, which is arranged, to be installed on directive slide track, fortune of the directive slide track to braced frame
It is dynamic to be oriented to.
The regulating mechanism includes rotating turret 9 and angle scale 10, and the rotating turret and braced frame are rotatablely connected, angle scale
It is fixedly connected with braced frame, the rotating turret control stirring blade turns an angle, and angle scale is used to realize rotational angle
Fixation after accurately control and realization rotating turret turn an angle, rotating turret can be by fastener and angle after turning an angle
Scale is fixedly connected.
The rotating turret is rectangular frame structure, the fixed company of the frame of the rotating turret two sides and one end of optical axis 11
It connects, the optical axis other end and vertical bearing 12 are rotatablely connected, and the vertical bearing is fixed on the bottom surface of second support bar, institute
State rotating turret and be located at the expansion bracket 13 for being fixed with L-type on the frame of stirring blade side, the expansion bracket of L-type include the first pars contractilis and
Second pars contractilis, the first pars contractilis and the second pars contractilis vertically connect, and the first pars contractilis and the second pars contractilis include fixed part
Point and telescopic section, two fixed parts vertically connect, be inserted into telescopic section in fixed part, fixed part and flexible
Part is equipped with the adjustment hole that ten diameters are 6mm, and the distance between adjustment hole is 10mm, and different adjustment is inserted into bolt in hole,
The length of telescopic section insertion fixed part is adjusted, adjusting method is identical as the adjusting method of telescoping tube, the first pars contractilis
The end of telescopic section is bolted to connection with rotating turret, and the end of the telescopic section of the second pars contractilis is fixed with axis of usheing to seat
It holds, passing through in the rolling bearing units has transmission shaft 14, and described transmission shaft one end passes through the rolling bearing units, and the other end is fixed with
Stirring blade 15, the expansion bracket of the L-type are installed at the non-center position of rotating turret frame, avoid the peace of expansion bracket, transmission shaft
Holding position is generated with the position of the lead screw of mobile mechanism and is overlapped.
The center of the angle scale, which passes through, optical axis, there are two the angle scale is set, is symmetrically distributed in the two sides of rotating turret,
On optical axis shaft part between second support bar and rotating turret, the cunning there are two symmetrical arc is set on the angle scale
Slot 10-1, the center of circle of two sliding slots and the center of circle of angle scale are concentric, and passing through in one of sliding slot has fixing bolt 10-2, described
Fixing bolt passes through second support bar and sliding slot, is screwed on the fixing bolt there are three fixture nut 10-3, one of them is solid
The nuts for determining nut and bolt compresses second support bar, realizes that bolt is fixed in second support bar, other two fixes spiral shell
Mother is located at the two sides of angle scale, and compresses angle scale, realizes fixation of the angle scale on bolt, and then realizes angle scale second
Fixation on support rod.
The fastener is two threaded rod 10-4 and fastening nut 10-5, and threaded rod described in two is each passed through described
Two sliding slots, and be tightened on rotating turret, fastening nut screwed on bolt thread bar, the fastening nut compresses angle
Disk realizes being fixedly connected for angle scale and rotating turret using the frictional force between angle scale and fixture nut.
Graduation mark is indicated on the angle scale, is equipped with 0 °, 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, 80 °, 90 ° of marks
Ruler realizes the accurate control of rotating turret rotational angle.
The driving mechanism uses stirring motor 16 and retarder 17, and the output shaft of the stirring motor is the defeated of retarder
Enter axis, the output shaft of the retarder is connect by one end that constant velocity cardan joint 18 does not install stirring blade with transmission shaft, stirring electricity
The power of machine passes to stirring blade by constant velocity cardan joint and transmission shaft, drives the rotation of stirring blade, setting constant velocity cardan joint can
Realize the three-dimensional transmission of power.
The stirring blade includes the annular blade 15-2 that the circular shear blade 15-1 being sequentially distributed and three diameters are sequentially increased,
Pyramidal structure is formed, the circular shear blade is welded and fixed with end part of driving shaft to be connect, and circular shear blade and annular blade pass through edge and stir
The evenly distributed four connection sheet 15-3 of circumferencial direction for mixing knife pyramidal structure are connected as one.The stirring blade uses taper-
Engraved structure, it is ensured that the resistance of water when dredging effect, and reducing rotation.
The control device is installed in control cabinet, and the control device includes controller, the controller control driving
The work of mechanism and mobile mechanism is also equipped with machine governor and power measurement instruments in the control cabinet, to driving mechanism and
Mobile mechanism carries out accurate control and the power of Real-time Feedback driving mechanism and mobile mechanism.
When the present invention makes, sink, expansion bracket, telescoping tube, upper bracket, stirring blade use 304 stainless steels, remaining material
Select 45# steel to be made, on the one hand can meet correlated performance requirement, on the other hand can reduce rack cost of manufacture, bolt, nut,
Bearing etc. selects the universal standards such as GB/T 70.1-2008, GB-T 152.4-88, GB/T 7810-1995, sink cross sectional shape
For the trapezoidal of 30:1, the corresponding stirring blade for configuring 30:1, the driving angle of constant velocity cardan joint passes through adjusting no more than 45 °
Expansion bracket, adjusting the center of stirring blade away from the level of stirring motor axis center, vertical range is respectively 520mm and 300mm.
The present invention is tested after it is stablized in use, according in practical shoal materials/water ratio addition screw clamp,
Fastening nut is unclamped, rotating turret is adjusted, slides threaded rod in sliding slot, be adjusted to stirring blade axis and be horizontally oriented, i.e.,
Stirring angle is 0 °, then screws fastening nut, is fixed on bogie on angle scale, adjusts telescoping tube, adjusts stirring blade
Upper and lower position makes stirring blade top be in water/silt boundary position, starts mobile motor and stirring motor, rabbling mechanism are moving
It can be moved along sink under the driving of motivation structure, the movement speed of mobile mechanism selects practical dredging plant speed, and simulated sediment dredging is set
Standby movement, movement speed are controlled by control device, stirring blade under the driving of stirring motor to the water in sink into
Row stirring, the revolving speed of stirring motor is adjusted by control device, since 50 turns, obtains the power of stirring motor simultaneously every 10 turns
Record, after silt is in suspended state, it is believed that reach the optimum speed of stirring motor, as dredging plant is stirred at 0 °
Angle, stirring blade top are in the optimal processing parameter under water/silt boundary operating condition.
Different stirring angles and different stirrings can be obtained in the upper and lower position that stirring angle and stirring blade are adjusted using identical method
The optimum speed of stirring motor is dredged to get the optimal processing parameter arrived under different operating conditions for improving under the operating condition of cutter position
Dredge efficiency, it is energy saving, drop low cost aspect play a significant role, have good actual effect.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (9)
1. a kind of dredging plant experimental rig, which is characterized in that including mobile mechanism, braced frame, rabbling mechanism, sink and
Control device, the mobile mechanism connect with braced frame, drive the movement of braced frame, are fixed with and stir in the braced frame
Mechanism is mixed, the rabbling mechanism includes driving mechanism, regulating mechanism and stirring blade, and the stirring blade is connect with driving mechanism, is driven
Motivation structure drives the rotation of stirring blade, is stirred to the solid-liquid two-phase mixture in sink, and the stirring blade is connect with regulating mechanism,
Regulating mechanism adjusts the position of stirring blade and stirring angle, the mobile mechanism and driving mechanism are connect with control device, receives
The control of control device；
The regulating mechanism includes rotating turret and angle scale, and the rotating turret two sides are fixedly connected with optical axis, and the optical axis passes through
Vertical bearing and braced frame are rotatablely connected, and are fixed with expansion bracket one end, the expansion bracket other end and transmission shaft on the rotating turret
Connection, the end part of driving shaft are fixed with stirring blade, and the angle scale is fixed in braced frame, and the optical axis passes through angle scale
Center, angle scale are fixedly connected by fastener with rotating turret.
2. a kind of dredging plant experimental rig as described in claim 1, which is characterized in that bottom is fixed in the mobile mechanism
On seat, including mobile motor, the output shaft of the mobile motor are connect with lead screw, and screw, the bottom are equipped on the lead screw
It is additionally provided with directive slide track on seat, is oriented to for the movement to braced frame.
3. a kind of dredging plant experimental rig as claimed in claim 2, which is characterized in that the braced frame includes top
The telescoping tube of bracket and multiple adjustable in length, the telescoping tube upper end are fixed on the bottom face of upper bracket, one of them
The lower end surface of telescoping tube is fixedly connected with screw, and the lower end surface of remaining telescoping tube is fixed with sliding block, and the sliding block, which is arranged, to be installed on
On directive slide track.
4. a kind of dredging plant experimental rig as described in claim 1, which is characterized in that the expansion bracket is L-type, including
The first pars contractilis and the second pars contractilis of adjustable in length, first pars contractilis one end are fixedly connected with rotating turret, the other end and
One end of two pars contractilis vertically connects, the other end and transmission axis connection of the second pars contractilis.
5. a kind of dredging plant experimental rig as described in claim 1, which is characterized in that the angle scale is equipped with arc
Sliding slot, the center of circle of the sliding slot and the center of circle of angle scale are concentric, the fastener use two threaded rods, threaded rod pass through slide
Slot is tightened on rotating turret, and nut has been screwed on threaded rod, and the nut compresses angle scale.
6. a kind of dredging plant experimental rig as described in claim 1, which is characterized in that the angle scale is equipped with scale
Line.
7. a kind of dredging plant experimental rig as described in claim 1, which is characterized in that the driving mechanism includes stirring
Motor and retarder, the stirring motor are fixed on rotating turret, and the output shaft of stirring motor is the input shaft of retarder, are slowed down
The output shaft of device is connect by one end that constant velocity cardan joint does not install stirring blade with transmission shaft.
8. a kind of dredging plant experimental rig as described in claim 1, which is characterized in that the stirring blade includes successively dividing
The annular blade that the circular shear blade of cloth and multiple diameters are sequentially increased, circular shear blade and annular blade form pyramidal structure, described
Circular shear blade is fixedly connected with transmission shaft, and circular shear blade and annular blade are uniform by the circumferencial direction along stirring blade pyramidal structure
The connection sheet of arrangement is connected as one.
9. a kind of dredging plant experimental rig as described in claim 1, which is characterized in that the control device is installed on control
In cabinet processed, the control device includes controller, the work of the controller control driving mechanism and mobile mechanism, the control
It is also equipped with machine governor and power measurement instruments in cabinet, accurate control and Real-time Feedback are carried out to driving mechanism and mobile mechanism
The power of driving mechanism and mobile mechanism.
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| CN201811085094.1A CN108914876B (en) | 2018-09-18 | 2018-09-18 | A kind of dredging plant experimental rig |
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| CN201811085094.1A CN108914876B (en) | 2018-09-18 | 2018-09-18 | A kind of dredging plant experimental rig |
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| CN108914876B true CN108914876B (en) | 2019-07-26 |
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| CN110396977A (en) * | 2019-03-05 | 2019-11-01 | 中船第九设计研究院工程有限公司 | A kind of Dredging Process tank system of test |
| CN110331754A (en) * | 2019-06-25 | 2019-10-15 | 武汉理工大学 | Drag head construction simulation experimental rig |
| CN113668450B (en) * | 2021-10-25 | 2022-02-11 | 交通运输部天津水运工程科学研究所 | Centrifugal model test device for simulating channel dredging and simulation method thereof |
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| JP2007217991A (en) * | 2006-02-17 | 2007-08-30 | Koichi Harada | Dredging device and dredging method |
| CN105672390B (en) * | 2016-01-20 | 2018-06-26 | 浙江水利水电学院 | A kind of river chain-bucket dredger and its Dredging Construction method |
| CN205875072U (en) * | 2016-07-12 | 2017-01-11 | 武汉理工大学 | With dredge experiment power device complex mobile device |
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