CN206320199U - A kind of trunnion axis energy by ocean current generator shaft coupling of the frictional overload protection of band - Google Patents
A kind of trunnion axis energy by ocean current generator shaft coupling of the frictional overload protection of band Download PDFInfo
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- CN206320199U CN206320199U CN201720271012.7U CN201720271012U CN206320199U CN 206320199 U CN206320199 U CN 206320199U CN 201720271012 U CN201720271012 U CN 201720271012U CN 206320199 U CN206320199 U CN 206320199U
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Abstract
The utility model discloses a kind of trunnion axis energy by ocean current generator shaft coupling of the frictional overload protection of band; including input flange, brake disc, drive flange, power transmission shaft, insulating flange and output flange, overload protection arrangement is provided between the output flange and insulating flange.The trunnion axis energy by ocean current generator shaft coupling of the frictional overload protection of band of the present utility model; the moment of torsion that insulating flange end is passed over is transferred to output flange by the friction of friction plate; it is further transferred to generator; when the moment of torsion passed over when insulating flange end is excessive; the ring flange of friction plate and insulating flange, the surface of overload protection pressing plate can produce skidding; so that moment of torsion Transmission, so as to protect generating set to avoid being damaged because of high pulling torque.
Description
Technical field
The utility model is related to energy by ocean current technical field of power generation, and in particular to a kind of trunnion axis of the frictional overload protection of band
Energy by ocean current generator shaft coupling.
Background technology
With the increasingly consumption of traditional non-renewable energy resources, energy crisis is increasingly aggravated, and the exploitation of regenerative resource is enjoyed
Favor.In field of renewable energy, energy by ocean current is a kind of clean reproducible energy, China's energy by ocean current rich reserves, its exploitation
Exploitative potential is huge.For wave, the change of energy by ocean current is steady and regular, big with energy density, regular strong, accumulates
The advantages of reserve is big.The development that energy by ocean current generating is compared with wave energy is more ripe, and has scale development condition and commercialization hair
Exhibition prospect.
Trunnion axis energy by ocean current generator is due to installing in the seawater, and cost of installation and removal is huge, so needing
Non-maintaining function, it is desirable to which each parts have the high characteristic of long service life, reliability, generally requires each parts and possesses 20
The service life in year.
Trunnion axis energy by ocean current generator due to working in the seawater, so sealing seems especially important, generator shape one
As be cylinder, classification install；Personnel can not typically enter when installing and safeguarding, so units' installation mode is different from typically
Generating set.
Generally, an energy by ocean current generator, which includes a shaft coupling, is used for connection gear box high speed shaft and generator shaft,
Requirement of the energy by ocean current generating set to shaft coupling is harsher.The shaft coupling requirement of energy by ocean current generating set is in high speed, heavily loaded bar
Transmission device torsional vibration of shafting characteristic, compensation driving and driven axial direction caused by vibration, impact, radial direction and angle position are adjusted under part
Move, absorb the additional energy that shafting is produced by the fluctuation of external loading, and uninterrupted transmitting torque and motion.There is torsion simultaneously
Square limitation function, when unit is short-circuited or overloads, the moment of torsion on shaft coupling has exceeded the moment of torsion of setting, and torque limiter is just
Separation can be produced, voluntarily recovers to be coupled after overload condition disappears, so as to effectively prevent mechanical failure and expensive shutdown damage
Lose.The motor-field of motor is asymmetric in energy by ocean current power generation process, causes motor due to installation and motor quality itself
Magnetic field is asymmetric, magnetic pole skewness error, and when breaking down, can produce parasite current；Electric current is passed by shaft coupling
It can be burnt bearing and gear to gear-box, reduce the bearing of gear-box and the service life of gear, therefore the insulating properties of shaft coupling
It can be also an important indicator of energy by ocean current generating shaft coupling.In order to prevent parasite current by shaft coupling from generator amature stream
To gear-box and spindle unit, it is desirable to which the impedance of shaft coupling is more than 100M Ω, and can bear 2KV voltages.
Usually used shaft coupling is mainly diaphragm coupling and drum cog-wheel coupling in existing energy by ocean current electricity generation system
And plum coupling.
The ability that there is common diaphragm coupling compensation to misalign is strong, transmission efficiency, adapts to big wait of difference variation and dislikes
Bad environment, and can the safe operation under conditions of impact endurance test shock, simple in construction, small in volume, convenient disassembly, and energy
The advantages of enough accurately transmission rotating speeds.But, common diaphragm coupling does not simultaneously have insulation and overload protection function, and due to
Trunnion axis energy by ocean current electric generator structure is special, and common diaphragm coupling cannot be installed, because the environment in closing, people during assembling
Unit can not be entered.During longtime running, diaphragm can produce fretting damage, can reduction of service life.
Drum cog-wheel coupling radial dimension is small, and large carrying capacity can allow certain angular displacement, it is adaptable to heavily loaded biography
It is dynamic, but the shaft coupling does not possess insulation and overload protection function yet, and cannot install, because the ring in closing during assembling
Border, people can not enter unit.If removing spline lubrication, the life-span of shaft coupling will reduce, simultaneously as the vibration spline of axle
Fretting damage can be produced, can reduction of service life.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of shaft coupling suitable for trunnion axis energy by ocean current generator,
The setting angle of the shaft coupling is adjustable, with characteristics such as long lifespan, insulation, overload protection, bufferings.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows：A kind of frictional overload of band is protected
The trunnion axis energy by ocean current generator shaft coupling of shield,
At least include：
Input flange；
Brake disc, the brake disc is fixed on input flange；
Drive flange, one end of the drive flange is fixedly connected with input flange；
Power transmission shaft, spline couples between the power transmission shaft and drive flange；
Insulating flange, the insulating flange is fixedly connected with power transmission shaft；
Output flange, is provided with overload protection arrangement, the overload protection arrangement between the output flange and insulating flange
Overload protection pressing plate including ring-type, the overload protection pressing plate is sheathed on output flange and consolidated with the ring flange of insulating flange
Fixed connection, the ring flange of the output flange is located between the ring flange of insulating flange and overload protection pressing plate, the output method
Blue ring flange both sides ring flange provided with friction plate and respectively with insulating flange, overload protection pressing plate frictional connection.
Pass through bolts and nuts between a kind of preferred embodiment, the ring flange of the overload protection pressing plate and insulating flange
It is fixedly connected, elastic washer is provided between the nut and overload pressing plate.
A kind of preferred embodiment, is provided with shaft insulation, the two ends of the shaft insulation between the power transmission shaft and insulating flange
The end face being connected respectively with power transmission shaft and insulating flange is taper surface.
A kind of preferred embodiment, if being equipped with joint face between the shaft insulation and power transmission shaft and insulating flange
Dry screw.
A kind of preferred embodiment, one end that the drive flange is connected with power transmission shaft is connected with external splines one, described to pass
One end that moving axis is connected with drive flange is connected with external splines two, and the external splines one and external splines two are by with internal spline
Spline housing is connected.
A kind of preferred embodiment, the drive flange on spline housing with being also arranged with sealing shroud one, the sealing shroud one
Inner surface be tightly connected respectively between drive flange and the outer surface of spline housing；The power transmission shaft on spline housing with being also arranged
There is sealing shroud two, the inner surface of the sealing shroud two is tightly connected between power transmission shaft and the outer surface of spline housing respectively.
A kind of preferred embodiment, the inwall of the spline housing, the outer wall of external splines one, the outer wall of external splines two, sealing
The end face for covering one inwall, the inwall of sealing shroud two, the end face of drive flange and power transmission shaft encloses to form lubricating cavity jointly, institute
State and lubricant is filled with lubricating cavity.
A kind of preferred embodiment, is respectively equipped with along power transmission shaft between the spline housing and sealing shroud one, sealing shroud two
The elastomeric element for being compressed axially and mutually balancing.
Being extended radially outwardly in the middle part of a kind of preferred embodiment, the spline housing has the boss of ring-type, the boss two
The end face of side is relative with the end face of sealing shroud one, sealing shroud two respectively, along the circumferential direction uniform on the end face of the boss both sides
Provided with least two groups blind holes, every group of blind hole is included symmetrically and respectively for the blind hole of sealing shroud one, sealing shroud two, described blind
Compression spring is placed in hole.
The shaft coupling of the present embodiment, applied to trunnion axis energy by ocean current generating set, it is advantageous that：
(1) moment of torsion that insulating flange end is passed over is transferred to output flange by the friction of friction plate, further
Generator is transferred to, when the moment of torsion passed over when insulating flange end is excessive, the ring flange of friction plate and insulating flange, overload are protected
Shield pressing plate surface can produce skidding so that moment of torsion Transmission, thus protect generating set avoid because of high pulling torque by
Damage；
(2) shaft insulation is set between power transmission shaft and insulating flange, prevents that the parasite current of generator end from flowing to gearbox, from
And the service life of gearbox is effectively ensured；
(3) coupled between drive flange and power transmission shaft by spline, because spline connection is non-rigid connection, to gearbox
Certain cushioning effect is played in the vibrations and impact at end；
(4) external splines one, external splines two are the ulnar side gap between barreled tooth flank, and the internal spline of spline housing compared with gear drive
Greatly, it is allowed to which certain installation can be allowed by producing between the output shaft of certain angular displacement, i.e. gearbox and the power transmission shaft of shaft coupling
Angle, it is sufficient to compensation radial displacement and angular displacement caused by vibration, impact, more adapts to the changeable external environment condition in seabed；
(5) inwall of spline housing, the outer wall of external splines one, the outer wall of external splines two, the inwall of sealing shroud one, sealing shroud two
Inwall, the end face of the end face of drive flange and power transmission shaft enclose to form lubricating cavity jointly, add long-life in lubricating cavity
Lubricant, is lubricated for a long time to the engaging piece of spline, prevents that the site of engagement of spline from producing abrasion, the longevity is used so as to be lifted
Life；
(6) being compressed axially and mutually balancing along power transmission shaft is respectively equipped between spline housing and sealing shroud one, sealing shroud two
Elastomeric element, can effectively prevent that spline housing from producing the play of axial direction, it is to avoid the site of engagement of spline produces eccentric wear, so as to carry
Rise service life.
Brief description of the drawings
Fig. 1 is the connection diagram of the trunnion axis energy by ocean current generating set of embodiment one；
Fig. 2 is the structural representation of the shaft coupling of embodiment one；
Fig. 3 is the close-up schematic view in A portions shown in Fig. 2；
Fig. 4 is the connection diagram of the trunnion axis energy by ocean current generating set of embodiment two.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
In description of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", " interior ", " outer " etc.
The orientation or position relationship of instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model
Described with simplifying, rather than indicate or imply that the device or element of meaning there must be specific orientation, with specific orientation structure
Make and operate, therefore it is not intended that to limitation of the present utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, are integrally connected or detachably connected
Connect；It can be the connection of two element internals；Can be joined directly together, can also be indirectly connected to by intermediary, for this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
Fig. 1 is shown in the connection diagram of trunnion axis energy by ocean current generating set, frame 6 in fixed installation casing 5, casing
It is connected with gearbox 2, shaft coupling 3 and generator 4 in turn, wherein shaft coupling 3 is used to gearbox 2 and generator 4 being connected to one
Rise, the input shaft 7 of gearbox 2 extends to the outside of casing 5, the free end connection blade 1 of input shaft.Electricity generating principle is to pass through
The fluxion strap movable vane piece 1 of seawater rotates, and the moment of torsion of the rotation generation of blade 1 passes sequentially through gearbox and shaft coupling is transferred to generating
Machine, electric current is produced by generator.Emphasis is described in detail to the structure of shaft coupling below.
Embodiment one
The trunnion axis energy by ocean current generator of the frictional overload protection of band of the present embodiment with shaft coupling as shown in Figure 2 and Figure 3,
One end of input flange 10 is fixedly connected with the output end of gearbox 2, and the other end is fixedly connected with drive flange 30, wherein inputting
Brake disc 20 is connected with flange 10.The other end of drive flange 30 is coupled with power transmission shaft 40 by spline, is described in detail below
Spline draw bail.
Wherein drive flange 30 is fixedly connected with external splines 1, power transmission shaft 40 and driving method close to one end of power transmission shaft 40
Orchid 30 connection one end be connected with external splines 2 86, preferably, between external splines 1 and drive flange 30, external splines 2 86
Equal interference is connected between power transmission shaft 40, and passes through the transmitting torque of flat key 82.In the present embodiment, external splines 1 and external splines two
86 are linked together by spline housing 80.It is provided with spline housing 80 and matches what is be connected with external splines 1 and external splines 2 86 respectively
Internal spline is, it is necessary to which explanation, external splines 1 and external splines 2 86 are barreled tooth flank, respectively with external splines 1 and external splines two
There is backlash between the internal spline of 86 matching connections, for compensating the axial displacement caused by vibration, impact.
In the present embodiment, also including sealing shroud 1, the inside of sealing shroud 1 is shoulder hole, and wherein small diameter bore is arranged
In on drive flange 30, large diameter hole is sheathed on spline housing 80.The wherein interior table of the inner surface of large diameter hole and spline housing 80
Sealing ring 74 is provided between face, sealing ring 74 is provided between the inner surface of small diameter bore and the outer surface of drive flange 30, so that real
Now it is tightly connected.Preferably, sealing ring 74 is O-ring seal.Preferably, on the inwall of the small diameter bore of sealing shroud 1
Lightening grooves 72 provided with annular, the both sides of the lightening grooves 72 are sealed by sealing ring 74.
Accordingly, also including sealing shroud 2 71, the inside of sealing shroud 2 71 is shoulder hole, and wherein small diameter bore is sheathed on biography
On moving axis, large diameter hole is sheathed on spline housing, the appearance of the inner surface of the sealing shroud two respectively with power transmission shaft and spline housing
It is tightly connected between face.In the present embodiment, the inwall of the spline housing, the outer wall of external splines one, the outer wall of external splines two, sealing
The end face for covering one cascaded surface, the cascaded surface of sealing shroud two, the end face of drive flange and power transmission shaft encloses to form lubrication jointly
Chamber 83.It is hollow object, it is necessary to be filled in the drive flange end relative with power transmission shaft generally, due to drive flange and power transmission shaft
Vexed plug 73, to ensure the sealing of lubricating cavity 83.The long-life lubricant of addition in the lubricating cavity, 20 can be used by usually requiring that
The lubricant in year, is lubricated for a long time with the engaging piece to spline, reduces the site of engagement abrasion of spline, so as to lift shaft coupling
Service life.Preferably, lightening grooves 72 of the inwall of the small diameter bore of sealing shroud 2 71 provided with annular.
As the special feature of the present embodiment, edge is respectively equipped between spline housing 80 and sealing shroud 1, sealing shroud 2 71
The elastomeric element for being compressed axially and mutually balancing of power transmission shaft.A kind of preferred structure, the middle part of spline housing 80 is radially outward prolonged
The boss for having ring-type is stretched, the end face of the boss both sides is relative with the end face of sealing shroud 1, sealing shroud 2 71 respectively.Wherein boss
Along the circumferential direction be laid with least two groups blind holes 84 on the end face of both sides, every group of blind hole 84 include symmetrically and respectively for
The blind hole of sealing shroud 1, sealing shroud 2 71.Place compression spring 85 in blind hole, the free end of compression spring 85 respectively with sealing
The end contact of one 70, sealing shroud 2 71 is covered, for providing pretightning force, prevents that spline housing from producing the play of axial direction, even in shake
Certain axial float is generated under dynamic and percussion, due to the balanced action of symmetrical compression spring, spline can be made
The play of set recovers.
In order to prevent that the parasite current of generator end is transferred to zero, gear and bearing that gearbox is damaged in gearbox etc.
Provided with the shaft insulation being made up of organic non-metal insulating materials between insulating flange 50 and power transmission shaft 40 in part, the present embodiment
41.Wherein the two ends of shaft insulation 41 are taper surface with the end face that power transmission shaft and insulating flange are connected, and taper surface can increase company
Connect the surface area at place so that bonding strength is higher.In order to further increase the intensity of connection, shaft insulation 41 and power transmission shaft 40 and exhausted
Some screws 42 are equipped with joint face between lot or luck by which people are brought together orchid 50.
When system produces larger moment of torsion, in order to prevent that high pulling torque from causing to damage to generator, output flange 60 with
Overload protection arrangement is provided between insulating flange 50.In the present embodiment, overload protection arrangement includes the overload protection pressing plate of ring-type
51, the overload protection pressing plate 51 is sheathed on output flange 60 and is fixedly connected with the ring flange of insulating flange 50.Wherein export
The ring flange of flange 60 is located between the ring flange of insulating flange 50 and overload protection pressing plate 51, the ring flange two of output flange 60
Side is provided with friction plate 52 and ring flange respectively with insulating flange, the frictional connection of overload protection pressing plate 51.Transmit at insulating flange end
The moment of torsion passed over is transferred to output flange by the friction of friction plate, is further transferred to generator.When insulating flange end
When the moment of torsion passed over is excessive, the ring flange of friction plate 52 and insulating flange, the surface of overload protection pressing plate 51, which can be produced, to be beaten
Sliding phenomenon so that moment of torsion Transmission, so as to protect generating set to avoid being damaged because of high pulling torque.It should be noted that should
The kinematics and static friction coefficients comparison of friction plate is approached, it is to avoid overload produces larger impact when skidding.
Pass through bolts and nuts between the ring flange of a kind of preferred embodiment, overload protection pressing plate 51 and insulating flange 50
It is fixedly connected, elastic washer 53 is provided between the nut and overload pressing plate.When friction plate 52 produces abrasion, elastic washer 53
Bit shift compensation can be carried out, wherein elastic washer 53 also has function of the demarcation overload pressing plate to the pressure of friction plate, so as to demarcate
Overload torque, it is ensured that the reliability of connection, lifts the service life of shaft coupling.
In the present embodiment, interference is connected between input flange 10 and input shaft (output shaft of gearbox 2), and passes through flat key
82 transmitting torques.Interference is connected between output flange 60 and output shaft (input shaft of generator 4), and transmits torsion by flat key 82
Square.
Embodiment two
The structure of the trunnion axis energy by ocean current generator shaft coupling of the present embodiment is as shown in figure 4, the embodiment and embodiment
One difference is, between input flange 10 and input shaft (output shaft of gearbox 2) and output flange 60 (generates electricity with output shaft
The input shaft of machine 4) between connected mode it is different.Because interference connection is not easy in dismounting, the present embodiment, the He of input flange 10
The inwall of output flange 60 is provided with taper tensioner face, and also including the expansion sleeve 11 matched with taper tensioner face, the expansion sleeve 11 has
There is certain elasticity, the outer wall of expansion sleeve 11 is the inner conical surface matched with taper tensioner face, the end cap and input method of expansion sleeve 11
By the mode connects for screw axially screwed between orchid 10 or the end face of output flange 60, and extent control method can be screwed by screw
The blue bonding strength with axle.The structure is compared with the connected mode of flat key transmitting torque, and dismounting more facilitates, and connection more may be used
Lean on.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all not to limit the utility model
Any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in this practicality
Within new protection domain.
Claims (9)
1. the trunnion axis energy by ocean current generator shaft coupling of a kind of frictional overload protection of band, it is characterised in that at least include：
Input flange；
Brake disc, the brake disc is fixed on input flange；
Drive flange, one end of the drive flange is fixedly connected with input flange；
Power transmission shaft, spline couples between the power transmission shaft and drive flange；
Insulating flange, the insulating flange is fixedly connected with power transmission shaft；
Output flange, is provided with overload protection arrangement between the output flange and insulating flange, the overload protection arrangement includes
The overload protection pressing plate of ring-type, the overload protection pressing plate is sheathed on output flange and fixes company with the ring flange of insulating flange
Connect, the ring flange of the output flange is located between the ring flange of insulating flange and overload protection pressing plate, the output flange
Ring flange both sides are provided with friction plate and ring flange respectively with insulating flange, overload protection pressing plate frictional connection.
2. according to the shaft coupling described in claim 1, it is characterised in that the ring flange of the overload protection pressing plate and insulating flange
Between be fixedly connected by bolts and nuts, the nut and overload pressing plate between be provided with elastic washer.
3. according to the shaft coupling described in claim 1, it is characterised in that provided with insulation between the power transmission shaft and insulating flange
Axle, the end face that the two ends of the shaft insulation are connected with power transmission shaft and insulating flange respectively is taper surface.
4. according to the shaft coupling described in claim 3, it is characterised in that between the shaft insulation and power transmission shaft and insulating flange
Some screws are equipped with joint face.
5. according to the shaft coupling described in claim 1, it is characterised in that one end connection that the drive flange is connected with power transmission shaft
There is external splines one, one end that the power transmission shaft is connected with drive flange is connected with external splines two, the external splines one and external splines
Two are connected by the spline housing with internal spline.
6. according to the shaft coupling described in claim 5, it is characterised in that the drive flange on spline housing with being also arranged with sealing
Set one, the inner surface of the sealing shroud one is tightly connected between drive flange and the outer surface of spline housing respectively；The transmission
Also it is arranged with sealing shroud two on axle and spline housing, the outer surface of the inner surface of the sealing shroud two respectively with power transmission shaft and spline housing
Between be tightly connected.
7. according to the shaft coupling described in claim 6, it is characterised in that the inwall of the spline housing, the outer wall of external splines one, outer
The outer wall of spline two, the inwall of sealing shroud one, the inwall of sealing shroud two, the end face of drive flange and power transmission shaft end face it is common
Enclose to form lubricating cavity, lubricant is filled with the lubricating cavity.
8. according to the shaft coupling described in claim 6 or 7, it is characterised in that the spline housing and sealing shroud one, sealing shroud two it
Between be respectively equipped with the elastomeric element for being compressed axially and mutually balancing along power transmission shaft.
9. according to the shaft coupling described in claim 8, it is characterised in that being extended radially outwardly in the middle part of the spline housing has ring-type
Boss, the end face of the boss both sides is relative with the end face of sealing shroud one, sealing shroud two respectively, the end face of the boss both sides
On be along the circumferential direction laid with least two groups blind holes, every group of blind hole is included symmetrically and respectively for sealing shroud one, sealing
Compression spring is placed in the blind hole of set two, the blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271012.7U CN206320199U (en) | 2017-03-20 | 2017-03-20 | A kind of trunnion axis energy by ocean current generator shaft coupling of the frictional overload protection of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271012.7U CN206320199U (en) | 2017-03-20 | 2017-03-20 | A kind of trunnion axis energy by ocean current generator shaft coupling of the frictional overload protection of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320199U true CN206320199U (en) | 2017-07-11 |
Family
ID=59261045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720271012.7U Active CN206320199U (en) | 2017-03-20 | 2017-03-20 | A kind of trunnion axis energy by ocean current generator shaft coupling of the frictional overload protection of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320199U (en) |
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2017
- 2017-03-20 CN CN201720271012.7U patent/CN206320199U/en active Active
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