CN106638749A - Rotary-cut type movable drag of drag suction dredger - Google Patents
Rotary-cut type movable drag of drag suction dredger Download PDFInfo
- Publication number
- CN106638749A CN106638749A CN201610892633.7A CN201610892633A CN106638749A CN 106638749 A CN106638749 A CN 106638749A CN 201610892633 A CN201610892633 A CN 201610892633A CN 106638749 A CN106638749 A CN 106638749A
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- Prior art keywords
- rotary
- drag
- reamer
- shaft
- toothholder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000008878 coupling Effects 0.000 claims abstract description 24
- 238000010168 coupling process Methods 0.000 claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000008859 change Effects 0.000 claims description 32
- 238000005520 cutting process Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 8
- 241000239290 Araneae Species 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000000515 tooth Anatomy 0.000 description 26
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Details Of Gearings (AREA)
- Harvester Elements (AREA)
Abstract
The invention provides a rotary-cut type movable drag of a drag suction dredger. The rotary-cut type movable drag comprises a movable cover and a driving device; a reamer and fixed drag teeth are arranged in the movable cover; a guide plate is arranged above the reamer; the reamer comprises a first reamer part and a second reamer; a middle supporting frame is arranged between the first reamer part and the second reamer part; the first reamer part and the second reamer part comprise square shafts and tooth holder trays; tooth holders are fixedly arranged at the peripheries of the tooth holder trays; rotary-cut drag teeth are detachably connected with the tooth holders; the driving device comprises a motor, a universal coupling and a gearbox body; the universal coupling is fixedly connected with a connecting shaft; the connecting shaft is in transmission connection with the gearbox body; a transmission shaft is arranged at the lower end of the gearbox body; a transmission flange is arranged between the transmission shaft and one square shaft; and an oil seal is arranged at a connection part of the gearbox body and the transmission shaft. The rotary-cut type movable drag has the beneficial effects that with the adoption of the rotary-cut drag teeth and the sectional type reamer, the mechanical strength of a rotary-cut type movable drag can be improved significantly, and with the combination of the design and the gear reduction design of the gearbox body, the dredging operation efficiency of the rotary-cut type movable drag can be improved substantially.
Description
Technical field
The present invention relates to dredging plant technical field, more particularly, to a kind of rotary-cutting type flexible harrow of drag suction dredger
Head.
Background technology
In dredging industry, the drag head structure of rake suction ship, with directly affecting, is not only related to the Dredging performance of drag head
Rake inhales the production efficiency of ship, also concerns the job safety that rake inhales ship.At present, rake inhales ship when dredging operation is carried out, its speed of a ship or plane
Size directly governs the mechanical loose effect of drag head, rake teeth to Dredged marerial.Although, when the speed of a ship or plane of rake suction ship is higher, navigation
Smoothness is preferable, but this speed of a ship or plane can cause excessive drag force to drag head, when firm barrier is run into just easily
Cause the damage of drag head.When the drag force suffered by drag head exceedes the greatest limit that drag head can bear in itself, easily cause rake
The major accidents such as head breakdown.However, when the speed of a ship or plane that rake inhales ship is slower, the break ground performance of ability of rake teeth can be restricted, if
Dredged marerial soft or hard can cause to dredge bottom rugged situation when uneven, cause dredging efficiency very low.
As can be seen here, a kind of rotary-cutting type activity drag head of drag suction dredger how is worked out, can be by tying to drag head
Structure is optimized, and then improves the dredging efficiency of drag head, is current those skilled in the art's problem demanding prompt solution.
The content of the invention
In order to solve the above problems, the invention provides a kind of rotary-cutting type activity drag head of drag suction dredger.
A kind of rotary-cutting type activity drag head of drag suction dredger of the present invention, including movable guard and driving means, the activity
Reamer is provided with cover and the row positioned at the reamer rear fixes rake teeth, be provided with deflector above the reamer, its feature
It is：The reamer includes the first reamer and the second reamer that structure is identical and coaxial line is arranged, first reamer and described
Intermediate support beam is installed, first reamer and second reamer include the side with gearing between the second reamer
Axle and the toothholder disk being placed on the outside of the square shaft, the toothholder disk periphery is fixed with toothholder, is detachably connected on the toothholder
There is rotary-cut rake teeth；
The driving means include ten thousand that the motor of the top for being located at the movable guard is fixedly connected with the motor two ends
To shaft coupling and gearbox body, the motor is double dredging motors lifted one's head, and the gearbox body is gear shift casing,
The Hooks coupling universal coupling is fixedly connected with connecting shaft, and the connecting shaft is connected with the gearbox body, the gearbox body
Lower end power transmission shaft is installed, drive flange, the gearbox body and institute are provided between the power transmission shaft and the square shaft
The connecting portion for stating power transmission shaft is provided with oil sealing.
Further, be from top to bottom disposed with the gearbox body one-level main shaft, two stage speed change main shaft and
Three-stage speed change gear axle, leads between the one-level main shaft, the two stage speed change main shaft and the three-stage speed change gear axle
Cross gear drive connection.
Further, the universal shaft coupling device is universal coupling with spider.
Further, the surrounding of the rotary-cut rake teeth offers cutting edge.
Further, the toothholder and the end face of the toothholder disk are in 9.5-10.5 ° of angle, and are dislocatedly distributed in the tooth
On the excircle of attic base.
Further, the connection shaft end is connected with gearbox body, and the connecting shaft outside is provided with connection shaft flange
Lid, the end of the connecting shaft blind flange is fixedly connected with the gearbox body.
Further, it is fixedly connected by bonded mode between the rotary-cut rake teeth and the toothholder.
Further, the excircle middle setting of the toothholder disk has Rope cutter.
Further, the end face center position of the toothholder disk offers square hole, the square hole according to perpendicular according to
It is secondary in -30 °, 0 °, 30 ° of angles and be divided into three kinds, according to this sequentially make the toothholder disk successively cycle arrangement in the square shaft
On, and be welded and fixed with the square shaft.
Further, the processing preparation method of the toothholder disk is casting.
The rotary-cutting type activity drag head of a kind of drag suction dredger of the present invention, compared with prior art with advantages below：
First, adopt single fixed rake teeth in the rotary-cutting type activity drag head of the drag suction dredger and driven by the motor
The mode that dynamic rotary-cut rake teeth combines carries out dredging operation.The fixed rake teeth plays a part of leveling dredging bottom surface；And institute
State rotary-cut rake teeth to be evenly distributed on two square shafts, improve the intensity of the reamer, reduce the square shaft and occur to break
The risk of damage.Oil sealing is adopted between the gearbox body and the power transmission shaft, the sealing property of the gearbox body is improve, can
Effectively prevent oil leak.Can make to exist between the connecting shaft and the gearbox body using Hooks coupling universal coupling certain
Angle, makes installation operation more flexible, while because without pinpoint requirement, so be avoided that because installation site has error and
The motor is caused to damage, i.e. the design has certain protective effect to the motor.The gearbox body adopts gear
Slow down, the ways of deceleration has the advantages that transmission efficiency, consume energy low, superior performance.In sum, the rotary-cut rake teeth, point
The setting of reamer described in segmentation is obviously improved the mechanical strength and job safety performance of the drag head, and the design combines the change
The The gear deceleration of fast casing is designed to promote the dredging operation efficiency of the drag head further to improve.
Second, in the one-level main shaft, the two stage speed change in the rotary-cutting type activity drag head of the drag suction dredger
Between main shaft and the three-stage speed change gear axle arrange gear carry out deceleration can be with the effectively save gear and the one-level
The installing space of main shaft, the two stage speed change main shaft and the three-stage speed change gear axle, and The gear deceleration has transmission
The characteristics of torque is big.Additionally, this is designed with three-level deceleration, power can be made more smoothly to pass to the square shaft, make institute
State square shaft and possess bigger output torque, and then improve dredging efficiency.
3rd, universal shaft coupling device is universal-joint-pin type universal shaft coupling described in the rotary-cutting type activity drag head of the drag suction dredger
Device.The design allows maximum interaxial angle to be less than or equal to 15 °, with the situation for preventing the motor from stall occur, so the design
There is good defencive function to motor.
Description of the drawings
Fig. 1 is the left view of the present invention；
Fig. 2 is profile of the present invention along line A-A；
Fig. 3 is the structural representation of rotary-cut rake teeth in the present invention；
Fig. 4 is the structural representation of toothholder disk in the present invention.
In figure：
1- motors, 2- Hooks coupling universal couplings, 3- connecting shaft blind flanges, 4- gearbox bodys, 5- one-level speed change driving gears, 6- mono-
Level speed change internal gear, 7- two stage speed change driving gears, 8- one-level main shafts, 9- bearing (ball) covers, 10- sliding bearings, 11- speed changes
Case lid, 12- two stage speed change driven gears, 13- two stage speed change main shafts, 14- three-step gear shift driving gears, 15- three-stage speed change gears
Axle, 16- sealing rubber pads, 17- oil sealings, 18- drive flanges, 19- toothholder disks, 20- rotary-cut rake teeths, 21- square shafts, in the middle of 22-
Bracing frame, 23- fixes rake teeth.
Specific embodiment
In order to be better understood from the present invention, the present invention is further retouched with reference to specific embodiments and the drawings
State.
As shown in Figure 1-2, the rotary-cutting type activity drag head of a kind of drag suction dredger, including movable guard and driving means, it is living
Reamer is provided with dynamic cover and the row positioned at reamer rear fixes rake teeth 23, deflector is provided with above reamer.Reamer includes knot
Structure is identical and coaxial line is arranged the first reamer and the second reamer, between the first reamer and the second reamer intermediate support beam is provided with
22.First reamer and the second reamer include the square shaft 21 with gearing and are placed on the toothholder disk 19 in the outside of square shaft 21.Tooth
The periphery of attic base 19 is fixed with toothholder, and rotary-cut rake teeth 20 is removably connected with toothholder.
Driving means include the Hooks coupling universal coupling 2 that the motor 1 of the top for being located at movable guard is fixedly connected with the two ends of motor 1
And gearbox body 4.Wherein, motor 1 is double dredging motors lifted one's head, and can dive deep 30m, belong to VFC motor, power
For 320KW.Universal shaft coupling device 2 is universal coupling with spider.Gearbox body 4 is gear shift casing.
Hooks coupling universal coupling 2 is fixedly connected with connecting shaft, and connecting shaft is connected with gearbox body 4, the lower end of gearbox body 4
Power transmission shaft is installed, the connecting portion of drive flange 18, gearbox body 4 and power transmission shaft is provided between power transmission shaft and square shaft 21
It is provided with oil sealing 17.It is bolted to connection between gearbox body 4 and gear shift cover 11, in gearbox body 4 and gear shift cover
Sealing rubber pad 16 is provided between 11 contact end face.
It is provided with gearbox body 4 and be from top to bottom disposed with one-level main shaft 8, two stage speed change main shaft 13 and three-level
Change gear shaft 15.One-level main shaft 8, two stage speed change main shaft 13 and three-stage speed change gear axle 15 are near the end of gear shift cover 11
End is separately installed with sliding bearing 10, and the end of sliding bearing 10 is fixedly installed bearing (ball) cover 9.
Connecting shaft is engaged with one-level main shaft 8 by one-level speed change driving gear 5 and with one-level speed change driving gear 5
One-level speed change internal gear 6 realizes power transmission；One-level main shaft 8 passes through two stage speed change driving gear with two stage speed change main shaft 13
7 and the two stage speed change driven gear 12 that engages with two stage speed change driving gear 7 realize power transmission；Two stage speed change main shaft 13 and three
Level change gear shaft 15 enters action edge transmission by three-step gear shift driving gear 14.
The design makes gearbox body 4 realize totally-enclosed immersion oil splash lubrication three-level deceleration, and speed reducing ratio is 18.8, final
Output torque is about 30000Nm.
Connection shaft end is connected with gearbox body 4, and connecting shaft outside is provided with connecting shaft blind flange 3, connecting shaft blind flange 3
End be fixedly connected with gearbox body 4.This is mainly designed to improve the torsional strength of connecting shaft, and connecting shaft blind flange
3 have certain support, protective effect for connecting shaft.
As shown in figure 3, the surrounding of rotary-cut rake teeth 20 offers cutting edge, so dissection can be produced to excavating thing,
Beneficial to detent torque is reduced, can be with reducing energy consumption ratio.Rotary-cut rake teeth 20 makes it be more suitable for excavating hard using plough configuration design
Soil and plate are husky.
As shown in Fig. 4 and Fig. 1, toothholder disk 19 is processed for forging type, has the advantages that structural integrity is strong.Toothholder
End face with toothholder disk 19 is in 9.5-10.5 ° of angle, and is dislocatedly distributed on the excircle of toothholder disk 19.The design can make strand
The unit excavated area increase of knife.
Additionally, the spacing between adjacent rotary-cut rake teeth 20 is larger, this provides facility for the assembly and disassembly of rotary-cut rake teeth 20.
In order to further reduce the assembling between rotary-cut rake teeth 20 and toothholder, dismantlement work amount, by the rotary-cut rake teeth 20 and the tooth
It is fixedly connected by bonded mode between seat.
The end face center position of toothholder disk 19 offers square hole, and square hole is according to being in successively -30 °, 0 °, 30 ° with perpendicular
Angle and be divided into three kinds, successively cycle arrangement on square shaft 21, and is welded with square shaft 21 sequentially to make toothholder disk 19 according to this
It is fixed.The design can make rotary-cut rake teeth 20 realize the central axis Spiral distribution along square shaft 21, cut so as to realize that reamer is progressive
The function of cutting.It is then to improve the torsional strength and bending rigidity of reamer using welding structure.
Hinder it to carry out normal excavation and dredge work to prevent reamer from being wound by debris such as fishing nets, so in toothholder
The excircle middle setting of disk 19 has Rope cutter.
Embodiments of the invention have been described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.All impartial changes made according to the scope of the invention and improvement etc., all should
Still belong within this patent covering scope.
Claims (10)
1. the rotary-cutting type activity drag head of a kind of drag suction dredger, including movable guard and driving means are provided with the movable guard
Reamer and the row positioned at the reamer rear fix rake teeth (23), and above the reamer deflector is provided with, it is characterised in that：
The reamer includes the first reamer and the second reamer that structure is identical and coaxial line is arranged, and first reamer and described second twist
Intermediate support beam (22) is installed, first reamer and second reamer include the square shaft with gearing between knife
(21) and the toothholder disk (19) that is placed on the outside of the square shaft (21), toothholder disk (19) periphery is fixed with toothholder, the tooth
Rotary-cut rake teeth (20) is removably connected with seat；
The driving means include that the motor (1) of the top for being located at the movable guard is fixedly connected with the motor (1) two ends
Hooks coupling universal coupling (2) and gearbox body (4), the motor (1) is double dredging motor lifted one's head, the gearbox body (4)
For gear shift casing, the Hooks coupling universal coupling (2) is fixedly connected with connecting shaft, the connecting shaft and the gearbox body (4)
It is connected, the lower end of the gearbox body (4) is provided with power transmission shaft, is provided between the power transmission shaft and the square shaft (21)
Drive flange (18), the gearbox body (4) is provided with oil sealing (17) with the connecting portion of the power transmission shaft.
2. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The gearbox body
(4) one-level main shaft (8), two stage speed change main shaft (13) and three-stage speed change gear axle (15) are from top to bottom disposed with,
The one-level main shaft (8), between the two stage speed change main shaft (13) and the three-stage speed change gear axle (15) pass through tooth
Wheel is connected.
3. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The universal connecting shaft
Device (2) is universal coupling with spider.
4. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The rotary-cut rake teeth
(20) surrounding offers cutting edge.
5. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The toothholder and institute
The end face of toothholder disk (19) is stated in 9.5-10.5 ° of angle, and is dislocatedly distributed on the excircle of the toothholder disk (19).
6. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The connecting shaft end
End is connected with gearbox body (4), and the connecting shaft outside is provided with connecting shaft blind flange (3), the connecting shaft blind flange (3)
End is fixedly connected with the gearbox body (4).
7. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The rotary-cut rake teeth
(20) it is fixedly connected by bonded mode between the toothholder.
8. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The toothholder disk
(19) excircle middle setting has Rope cutter.
9. drag suction dredger according to claim 1 rotary-cutting type activity drag head, it is characterised in that：The toothholder disk
(19) end face center position offers square hole, the square hole according to perpendicular successively in -30 °, 0 °, 30 ° of angles and divide
For three kinds, according to this sequentially make the toothholder disk (19) successively cycle arrangement on the square shaft (21), and with the square shaft
(21) it is welded and fixed.
10. the rotary-cutting type activity drag head of the drag suction dredger according to any one in claim 1-9, its feature exists
In：The processing preparation method of the toothholder disk (19) is casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892633.7A CN106638749B (en) | 2016-10-13 | 2016-10-13 | Rotary cutting type movable drag head of trailing suction hopper dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892633.7A CN106638749B (en) | 2016-10-13 | 2016-10-13 | Rotary cutting type movable drag head of trailing suction hopper dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106638749A true CN106638749A (en) | 2017-05-10 |
| CN106638749B CN106638749B (en) | 2022-08-12 |
Family
ID=58856955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610892633.7A Expired - Fee Related CN106638749B (en) | 2016-10-13 | 2016-10-13 | Rotary cutting type movable drag head of trailing suction hopper dredger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106638749B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797686A (en) * | 2018-06-27 | 2018-11-13 | 安徽佳明环保科技股份有限公司 | A kind of drag head device for inhaling ship for silt rake |
| CN110044592A (en) * | 2019-04-12 | 2019-07-23 | 中交疏浚技术装备国家工程研究中心有限公司 | Trailing suction hopper dredger hobboing cutter drag head pilot system |
| CN110044593A (en) * | 2019-04-12 | 2019-07-23 | 中交疏浚技术装备国家工程研究中心有限公司 | Trailing suction hopper dredger hobboing cutter drag head test method |
| CN111749297A (en) * | 2020-07-29 | 2020-10-09 | 中交天津航道局有限公司 | But environmental protection silt remover of horizontal swing operation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201062365Y (en) * | 2006-08-08 | 2008-05-21 | 南通市清淤疏浚机械有限公司 | Rotary cutter of small-sized rotary-cutting sucker type underwater dredging machine |
| CN201067005Y (en) * | 2007-06-29 | 2008-06-04 | 杨树彦 | Stubble cutter |
| CN102330443A (en) * | 2011-07-14 | 2012-01-25 | 中交天津港航勘察设计研究院有限公司 | Clay drag head for drag suction dredger |
| EP2878188A1 (en) * | 2013-12-02 | 2015-06-03 | Kuhn-Audureau S.A. | Device for fastering a knive on the rotor of a hedge and grass cutter |
-
2016
- 2016-10-13 CN CN201610892633.7A patent/CN106638749B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201062365Y (en) * | 2006-08-08 | 2008-05-21 | 南通市清淤疏浚机械有限公司 | Rotary cutter of small-sized rotary-cutting sucker type underwater dredging machine |
| CN201067005Y (en) * | 2007-06-29 | 2008-06-04 | 杨树彦 | Stubble cutter |
| CN102330443A (en) * | 2011-07-14 | 2012-01-25 | 中交天津港航勘察设计研究院有限公司 | Clay drag head for drag suction dredger |
| EP2878188A1 (en) * | 2013-12-02 | 2015-06-03 | Kuhn-Audureau S.A. | Device for fastering a knive on the rotor of a hedge and grass cutter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797686A (en) * | 2018-06-27 | 2018-11-13 | 安徽佳明环保科技股份有限公司 | A kind of drag head device for inhaling ship for silt rake |
| CN108797686B (en) * | 2018-06-27 | 2020-10-30 | 安徽佳明环保科技股份有限公司 | Drag head device for silt drag suction ship |
| CN110044592A (en) * | 2019-04-12 | 2019-07-23 | 中交疏浚技术装备国家工程研究中心有限公司 | Trailing suction hopper dredger hobboing cutter drag head pilot system |
| CN110044593A (en) * | 2019-04-12 | 2019-07-23 | 中交疏浚技术装备国家工程研究中心有限公司 | Trailing suction hopper dredger hobboing cutter drag head test method |
| CN111749297A (en) * | 2020-07-29 | 2020-10-09 | 中交天津航道局有限公司 | But environmental protection silt remover of horizontal swing operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106638749B (en) | 2022-08-12 |
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Granted publication date: 20220812 |