CN107448505A - It is a kind of without control at a high speed triggering and can low speed keep clutch - Google Patents
It is a kind of without control at a high speed triggering and can low speed keep clutch Download PDFInfo
- Publication number
- CN107448505A CN107448505A CN201710653728.8A CN201710653728A CN107448505A CN 107448505 A CN107448505 A CN 107448505A CN 201710653728 A CN201710653728 A CN 201710653728A CN 107448505 A CN107448505 A CN 107448505A
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- China
- Prior art keywords
- output shaft
- fixture block
- input shaft
- centrifugation
- neck
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/16—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with clutching members having interengaging parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
- F16D47/02—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a coupling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
It is a kind of without control at a high speed triggering and can low speed keep clutch, mainly including input shaft, output shaft and centrifugation fixture block.The present invention, can also normal work in the case where no outside resources supply and control；When input shaft overspeed operation, the connection of output shaft and input shaft is realized automatically, and stable drive can transmit big torque；Especially after completing to connect, when input shaft rotating speed is by being reduced at a high speed low speed, or even stalling, stable connection hold mode is still at；And have the advantages that simple in construction, reliability is high, maintainability is good, cost is cheap.
Description
Technical field
The present invention relates to mechanical field, more particularly to realize the clutch of two rotating shaft rotary motion transmission.
Background technology
With the increase of skyscraper quantity, the quantity of towed elevator quickly increases, but skyscraper is in fire etc.
Show evacuating personnel problem day in emergency circumstances and protrude." one kind has fire power-off to disclosed ZL201210346849.5
The elevator of self-operating life-saving functions ", it is proposed that damping unit realization is connected to the limiting operation of car by clutch, also can be same
Step solves car accident stall and rushed to summit and fall the solution of problem.Under scene used above, clutch is proposed
Functional performance requires as follows：It can be interrupted in elevator device externally fed, during elevator transmission system overspeed operation, realize damping dress
The automatic connection with elevator transmission system is put, and transmits big torque, and especially requires the high reliability of connection；Passing through clutch
During connecting damping unit and afterwards, it is desirable to flexible connection is realized, without to including elevator transmission system and resistance
The driving-chain of Buddhist nun's device produces rigid shock；Especially after completing to connect, when input shaft rotating speed is by hundreds of rpms of high speed,
When being reduced to tens rpms of low speed, stable connection status is still at；Best clutch is without externally fed
Or control can just work, so as to reduce system composition complexity, reliability is improved, and energy is non-maintaining, cost is cheap.
But the clutch of the maneuverability pattern such as existing machinery, air pressure, hydraulic pressure, electromagnetism, magnetorheological, complicated, cost
It is high, extra executing agency is especially required to, and after the triggering work of daily or clutch, it is necessary to clutch is given
With energy resource supply；This causes such clutch daily need consumed energy and economy is not good enough, or energy is needed during emergency
Source ensures less reliable in place.For existing, it is not necessary to which energy resource supply is required to defeated with regard to workable centrifugal clutch
Enter axle at high speed could steady operation, but input shaft rotating speed reduction after, generally can disconnect automatically, the characteristic will
So that the connection of damping unit and elevator transmission system is off and on, the reliability of system is reduced, and then is difficult to ensure elevator
Security when system emergency is run.
The content of the invention
The invention provides it is a kind of without control at a high speed triggering and can the clutch that keeps of low speed, its alternative construction is：Described
Clutch includes input shaft, output shaft, centrifugation fixture block, bearing and housing；Described input shaft is in above clutch, described defeated
Enter axle middle part to be rotatably connected with housing realization by upper bearing (metal), be equipped with the slotted eye opened up on the input shaft lower semisection
Fixture block is centrifuged, the input shaft lower end is realized with output shaft by inner bearing and is rotatably connected, and is opened on the upper semisection of the output shaft
Provided with the neck to match with centrifugation fixture block, neck can be a variety of counterbores such as rectangle, circle, ellipse, polygon
Or through hole configuration, the middle part of the output shaft is realized by lower bearing with housing to be rotatably connected, the housing and output shaft
Position corresponding to upper neck offers reset hole, and the housing is realized by screw with housing and is fastenedly connected.
It is preferred that the clutch is in the case where no outside resources supply and control, can also normal work；It is described
Centrifugation fixture block is assemblied on input shaft by magnetic attraction, and when input shaft rotating speed is higher than setting value, centrifugation fixture block is transported to periphery
Move and enter the neck of output shaft, realize the connection of input shaft and output shaft；The centrifugation fixture block is maintained at by magnetic attraction
In the neck of output shaft so that even if follow-up input shaft rotating speed is greatly lowered, or when stopping the rotation, can still realize defeated
Enter being reliably connected between axle and output shaft, and the torque that can be transmitted can not be influenceed by rotating speed and direction of rotation.When from
Heart fixture block is permeability magnetic material or chimeric permeability magnetic material, and input shaft and output shaft entirety or local action region magnetize or are fitted together to permanent magnetism
During body so that centrifugation fixture block can be assemblied on input shaft by magnetic attraction, or can be inhaled after entering output shaft neck
It is attached in it；Or when centrifugation fixture block by itself magnetization or is fitted together to permanent magnet band and is magnetic, input shaft and output shaft it is overall or
When local action region is permeability magnetic material or chimeric permanent magnet so that centrifugation fixture block can be assemblied in input shaft by magnetic attraction
On, or can be adsorbed after entering output shaft neck in it.
It is preferred that the clutch is in the case where no outside resources supply and control, can be with normal work；It is described from
Heart fixture block is assemblied on input shaft by spring force, when input shaft rotating speed is higher than setting value, centrifugation fixture block to peripheric movement simultaneously
Into the neck of output shaft, the connection of input shaft and output shaft is realized；The centrifugation fixture block is maintained at output by magnetic attraction
In the neck of axle so that even if follow-up input shaft rotating speed is greatly lowered, or when stopping the rotation, can still realize input shaft
Being reliably connected between output shaft, and the torque that can be transmitted can not be influenceed by rotating speed and direction of rotation.When centrifugation blocks
Block is permeability magnetic material or chimeric permeability magnetic material, and output shaft entirety or local action region magnetize or are fitted together to permanent magnet so that centrifugation
Fixture block can be adsorbed in it after entering output shaft neck；Or when centrifugation fixture block by itself magnetization or is fitted together to permanent magnet band
It is magnetic, output shaft entirety or local action region are permeability magnetic material or chimeric permanent magnet so that centrifugation fixture block enters output
It can be adsorbed after axle neck in it.The centrifugation fixture block is entered in the neck of output shaft, realizes input shaft and output shaft
During connection, the spring force that the magnetic attraction between fixture block and output shaft is more than between centrifugation fixture block and input shaft is centrifuged, then subsequently
Even if input shaft stops the rotation, clutch also can still keep the connection of input shaft and output shaft；Or the centrifugation fixture block
Enter in the neck of output shaft, when realizing the connection of input shaft and output shaft, centrifuge the magnetic attachment between fixture block and output shaft
Power with the centrifugal force of centrifugation fixture block and frictional force etc. under setting speed, it is necessary to make a concerted effort between ability equilibrium centrifugation fixture block and input shaft
Spring force, then when input shaft drops to the slow-speed of revolution of setting by high rotating speed, centrifugation fixture block will reset under spring force, from
And realize the disconnection of input shaft and output shaft.
It is preferred that fixture block either input shaft or output shaft are centrifuged, using the material system of flexible deformable shock-resistant function
Make or be designed with shock-damping structure, the shock-damping structure of ordinary elasticity shaft coupling is such as designed with input shaft or output shaft so that from
Clutch has the function of elastic-like shaft coupling concurrently in connection again；Or fixture block either input shaft or output shaft are centrifuged,
The material of flexible deformable shock-resistant function, such as mating surface in centrifugation fixture block driving contact are added in the mating surface of driving contact
Upper parcel or added rubber so that when the static output shaft of input shaft drive rotates, due to flexible deformable shock-resistant
The cushioning effect of functional material, so as to avoid the rigid shock to driving-chain；And driving-chain in itself be provided with yielding coupling or
Person is resistant to the occasion of impact, centrifuges fixture block either input shaft or output shaft, then need not use or add and be flexible
The material or design shock-damping structure of deformable shock-resistant function.
It is preferred that clutch housing position corresponding with neck on output shaft offers reset hole, for promote from
Heart fixture block resets and realizes input shaft and the disconnection of output shaft.Confirming that elevator device state is normal, it is necessary to disconnect input shaft
During with the connection of output shaft, the centrifugation fixture block being partially in output shaft neck can be pushed back completely manually by reset hole
To the slotted eye of input shaft, so as to realize the reset of centrifugation fixture block, the disconnection of input shaft and output shaft.
It is preferred that the clutch is configured with the centrifugation fixture block no less than one and the neck of pairing, and it is more when being disposed with
During individual centrifugation fixture block, the connection reliability of input shaft and output shaft when input shaft rotating speed is higher than setting value, can be improved.
The present invention is allowed to compared with prior art due to using above technical scheme, can clutch without it is extraneous electrically
Liquid equal energy source supplies, it is not necessary to can normal work in the case of instruction or programme-control；It is automatic real when input shaft overspeed operation
The connection of existing output shaft and input shaft, and transmit big torque；And steady biography can be realized under the occasion and design point of needs
It is dynamic, avoid rigid shock；Especially after completing to connect, when input shaft rotating speed is by being reduced at a high speed low speed, or even stopping operating,
Still it is at stable connection hold mode；And there is simple in construction, reliability is high, maintainability is good, cost is cheap etc.
Advantage.
Brief description of the drawings
Fig. 1 is that input shaft of the present invention is off structural representation with output shaft；
Fig. 2 is that input shaft of the present invention is in connection status schematic diagram with output shaft；
Fig. 3 is that the present invention makes pto input shaft using magnetic or permeability magnetic material and centrifugation blocks fast schematic diagram.
Symbol description：
1- input shafts 2- centrifuges fixture block 3- upper bearing (metal)s
4- screw 5- reset holes 6- connection keepers
7- neck 8- inner bearing 9- lower bearings
10- output shaft 11- housing 12- original positions keeper
13- housings
Embodiment
Referring to the accompanying drawing for showing the embodiment of the present invention, the present invention is described in more detail.However, the present invention can be with
Many multi-forms are realized, and should not be construed as being limited by the embodiment of this proposition.On the contrary, propose the embodiment be in order to
Reach abundant and complete disclosure, and those skilled in the art is understood the present invention completely.In accompanying drawing, risen to be clear
See, may be exaggerated the size and relative size in layer and region.
In embodiment, 2 pieces of the centrifugation card is assemblied on input shaft 1 by magnetic attraction, when 1 turn of input shaft
When speed is higher than setting value, centrifugation fixture block 2 is to peripheric movement and enters the neck 7 of output shaft 10, realizes input shaft 1 and output shaft 10
Connection；The centrifugation fixture block 2 is maintained in the neck 7 of output shaft 10 by magnetic attraction so that subsequently the rotating speed of input shaft 1 is
When making to be greatly lowered, or stopping the rotation, being reliably connected between input shaft 1 and output shaft 10, and institute can be still realized
The torque that can be transmitted can not be influenceed by rotating speed and direction of rotation.When centrifugation fixture block 2 is permeability magnetic material or chimeric permeability magnetic material,
When input shaft 1 and the entirety of output shaft 2 or local action region magnetize or are fitted together to permanent magnet so that centrifugation fixture block 2 can be by magnetic
Attraction is assemblied on input shaft 1, or can be adsorbed after entering the neck 7 of output shaft 2 in it；Or when centrifugation fixture block 2
Magnetize by itself or be fitted together to permanent magnet band and be magnetic, input shaft 1 and the entirety of output shaft 2 or local action region are permeability magnetic material
Or during chimeric permanent magnet so that centrifugation fixture block 2 can be assemblied on input shaft 1 by magnetic attraction, or enter output shaft 2
It can be adsorbed after neck 7 in it.
With reference to shown in figure 1, the invention provides it is a kind of without control at a high speed triggering and can low speed keep clutch, specifically,
In the present embodiment, input shaft 1 is in above clutch, and the middle part of input shaft 1 is realized by upper bearing (metal) 3 and housing 13 to rotate
Connect, centrifugation fixture block 2 is equipped with the slotted eye opened up on the lower semisection of input shaft 1, the lower end of input shaft 1 passes through inner bearing 8 and output
Axle 10 realizes rotatable connection, and the neck 7 to match with centrifugation fixture block 2 is offered on the upper semisection of output shaft 10, output shaft 10
Realize and be rotatably connected that housing 11 opens up with 7 corresponding position of neck on output shaft 10 with housing 11 by lower bearing 9 in middle part
There is reset hole 5, housing 11 is realized by screw 4 with housing 13 and is fastenedly connected.
In the present embodiment, to cause observation more directly perceived, the fixture block 2 of setting centrifugation for the time being is only permeability magnetic material or in it
Portion is fitted together to permeability magnetic material, and is provided with the keeper in situ 12 of magnetic close to the central axis direction of input shaft 1 in centrifugation fixture block 2,
And by magnetic attraction caused by keeper 12 in situ, centrifugation fixture block 2 is adsorbed into assembling on input shaft 1, and work as input shaft 1
When rotating speed is less than setting value, input shaft 1 will not be connected by centrifugation fixture block 2 with output shaft 10；When the rotating speed of input shaft 1 is higher than setting value
When, centrifugation fixture block 2 moves out under the action of the centrifugal force, into the neck 7 of output shaft 10 so as to realizing input shaft 1 and output shaft
10 connection；And the neck 7 that centrifugation fixture block 2 matches by output shaft 10 with centrifugation fixture block 2, the connection on the right side of neck 7 are protected
Gripping member 6, caused magnetic attraction, centrifugation fixture block 2 is adsorbed in the neck 7 of output shaft 10, so that follow-up input shaft 1
Even if rotating speed is greatly lowered, or even during stalling, can still realize being reliably connected between input shaft 1 and output shaft 10, such as
Shown in Fig. 2, and the transmission from input shaft 1 to the torque of output shaft 10 no longer can be influenceed by rotating speed and direction of rotation.
Again for example, in specific implementation process, centrifugation fixture block 2 is assemblied on input shaft 1 by magnetic attraction, and absorption exists
In the neck 7 of output shaft 10, be using centrifugation fixture block 2 by itself magnetization or when being fitted together to the mode band such as permanent magnet and being magnetic, then it is defeated
Enter axle 1 and the entirety of output shaft 10 or local action region for permeability magnetic material or chimeric permanent magnet it is achieved that clutch will be caused
Device overall structure has the advantages of more succinct, as shown in Figure 3.
Certainly, in another specific embodiment, the keeper in situ 12 shown in Fig. 1 with magnetic attraction can be replaced
For the keeper in situ 12 with certain spring tension, it can equally ensure that centrifuge fixture block 2 is less than setting value in the rotating speed of input shaft 1
When, input shaft 1 will not be connected by centrifugation fixture block 2 with output shaft 10；When the rotating speed of input shaft 1 is higher than setting value, centrifugation fixture block 2 exists
Under centrifugal action, the spring tension of keeper 12 in situ is overcome to move out, it is defeated so as to realize into the neck 7 of output shaft 10
Enter the connection of axle 1 and output shaft 10.Similar, when centrifugation fixture block 2 is permeability magnetic material or chimeric permeability magnetic material, output shaft 10 is overall
Or local action region magnetizes or is fitted together to permanent magnet so that centrifugation fixture block 2 can be adsorbed at it after entering the neck 7 of output shaft 10
It is interior；Or be magnetic when centrifugation fixture block 2 magnetizes by itself or is fitted together to permanent magnet band, the entirety of output shaft 10 or local action region
For permeability magnetic material or chimeric permanent magnet so that centrifugation fixture block 2 can be adsorbed in it after entering the neck 7 of output shaft 10.When from
Magnetic attraction between heart fixture block 2 and output shaft 10, more than the spring of keeper 12 in situ between centrifugation fixture block 2 and input shaft 1
Pulling force, even if then follow-up input shaft 1 stops the rotation, clutch also can still keep the connection of input shaft 1 and output shaft 10.When
Centrifuge and connect magnetic attraction caused by keeper 6 between fixture block 2 and output shaft 10, it is necessary to centrifuging fixture block 2 under setting speed
Centrifugal force and frictional force etc. make a concerted effort could be between equilibrium centrifugation fixture block 2 and input shaft 1 spring tension, then when 1 turn of input shaft
During the slow-speed of revolution of the speed by dropping to setting at a high speed, centrifugation fixture block 2 will keeper 12 in the original location spring tension effect it is lower reset, so as to
Realize the disconnection of input shaft 1 and output shaft 10.
In the embodiment above, fixture block 2 either input shaft 1 or output shaft 10 are centrifuged, using flexible deformable shock-resistant
The material of function makes or is designed with shock-damping structure, and as shown in Figure 3 sets on the middle circle shell of column of input shaft 1 or output shaft 10
It can also block in respect of the damping configuration of ordinary elasticity shaft coupling, or transmitting low-force square occasion by the use of polyurethane as centrifugation
The making base material of block 2 so that clutch has the function of elastic-like shaft coupling concurrently in connection again；Or centrifugation fixture block 2 or
Person's input shaft 1 or output shaft 10, the material of flexible deformable shock-resistant function is wrapped up, added in the mating surface of driving contact
Material, such as rubber, polyurethane, PVC, nylon plastic(s)；Can drives static output shaft 10 to do in the input shaft 1 of high speed rotation
During rotary motion, due to the cushioning effect of flexible deformable shock-resistant functional material, avoid producing larger rigid shock.Such as
Centrifugation fixture block 2 is made using the material of flexible deformable shock-resistant function or is designed with shock-damping structure, or centrifugation fixture block 2 with
The material of flexible deformable shock-resistant function is added in the centrifugation mating surface of fixture block 2 of the driving contact of 10 neck of output shaft 7, or it is defeated
Enter the material that flexible deformable shock-resistant function is added in the mating surface of input shaft 1 of the axle 1 with centrifuging the driving contact of fixture block 2, or
The neck 7 of output shaft 10 in the mating surface of 10 neck of output shaft 7 of the centrifugation driving contact of fixture block 2 with adding flexible deformable shock-resistant work(
Material of energy etc., and the matched combined of any of the above design, it is possible to rotated at a high speed in input shaft 1, centrifugation fixture block 2 enters defeated
When the neck 7 of shaft 10, input shaft 1 drive the static output shaft 10 to rotate, due to flexible deformable shock-resistant function material
The cushioning effect of material, so as to avoid rigid shock.And yielding coupling is provided with itself in outside driving-chain or is resistant to rush
The occasion hit, fixture block 2 either input shaft 1 or output shaft 10 are centrifuged, then need not use or add flexible deformable shock-resistant
The material of function designs shock-damping structure, then clutch has the advantages of simple in construction, cost is less expensive.
In the embodiment above, clutch housing 11 offers reset hole 5 with 7 corresponding position of neck on output shaft 10,
For promoting centrifugation fixture block 2 to reset and realizing the disconnection of input shaft 1 and output shaft 10.Confirming that elevator device state is normal,
When needing to disconnect the connection of input shaft 1 and output shaft 10, the neck 7 of output shaft 10 can will be partially in by reset hole 5 manually
Interior centrifugation fixture block 2 pushes back in the slotted eye of input shaft 1 completely, so as to realize the reset of centrifugation fixture block 2, input shaft 1 and output
The disconnection of axle 10.
In the embodiment above, clutch is configured with the centrifugation fixture block 2 no less than one, and blocks when being disposed with multiple centrifugations
During block 2, the connection reliability of input shaft 1 and output shaft 10 when the rotating speed of input shaft 1 is higher than setting value, can be improved.Such as clutch
Two be arranged symmetrically, three or four centrifugation fixture blocks 2 are provided with the input shaft 1 of device so that clutch is in the rotating speed of input shaft 1
During higher than setting value, if having one centrifugation fixture block 2 enter in the neck 7 of output shaft 10, it is possible to realize input shaft 1 with it is defeated
The connection of shaft 10.
The present invention is allowed to compared with prior art due to using above technical scheme, can clutch without it is extraneous electrically
Liquid equal energy source supplies, it is not necessary to can normal work in the case of instruction or programme-control；It is automatic real when input shaft overspeed operation
The connection of existing output shaft and input shaft, and transmit big torque；And steady biography can be realized under the occasion and design point of needs
It is dynamic, avoid rigid shock；Especially after completing to connect, when input shaft rotating speed is by being reduced at a high speed low speed, or even stopping operating,
Still it is at stable connection hold mode；And there is simple in construction, reliability is high, maintainability is good, cost is cheap etc.
Advantage.
Below in conjunction with the accompanying drawings to the present invention it is a kind of without control at a high speed triggering and can low speed keep clutch the course of work and
Principle is described.
With reference to figure 1, consider that centrifugation fixture block 2 is assemblied in situation on input shaft 1 by magnetic attraction, when the rotating speed of input shaft 1 is low
When setting value, the centrifugal force of centrifugation fixture block 2 is not enough to overcome the magnetic attraction between centrifugation fixture block 2 and input shaft 1, without
Move out and then be connected input shaft 1 with output shaft 10；When the rotating speed of input shaft 1 is higher than setting value, centrifugation fixture block 2 is centrifuging
Overcome other external force under power effect and move out, into the neck 7 of output shaft 10 so as to realizing input shaft 1 and output shaft 10
Connection；Because the fixture block 2 that such as centrifuges in design makes or is designed with damping using the material of flexible deformable shock-resistant function
Structure so that rotated at a high speed in input shaft 1, centrifugation fixture block 2 enters the neck 7 of output shaft 10, and input shaft 1 drives static output shaft
10 when rotating, due to the cushioning effect of flexible deformable shock-resistant functional material, so as to avoid producing larger rigidity
Impact；And centrifugation fixture block 2 is by the magnetic attraction between centrifugation fixture block 2 and output shaft 10 so that centrifugation fixture block 2, which adsorbs, to be exported
In the neck 7 of axle 10, even if so as to which the follow-up rotating speed of input shaft 1 is greatly lowered, or even during stalling, it can still realize input shaft
Being reliably connected between 1 and output shaft 10, as shown in Fig. 2 and from input shaft 1 to the transmission of the torque of output shaft 10 can no longer by
Rotating speed and the influence of direction of rotation.Set task is completed in elevator device, confirms that elevator device state is normal, it is necessary to disconnect defeated
When entering the connection of axle 1 and output shaft 10, it is only necessary to using implements such as common poles, by reset hole 5, will be partially in manually defeated
Centrifugation fixture block 2 in the neck 7 of shaft 10 pushes back in the slotted eye of input shaft 1 completely, it becomes possible to the reset of centrifugation fixture block 2 is realized,
The disconnection of input shaft 1 and output shaft 10, as shown in Figure 1.
With reference to figure 1, consider that centrifugation fixture block 2 is assemblied in situation on input shaft 1 by spring tension, there is certain spring tension
Keeper in situ 12, can equally ensure centrifuge fixture block 2 when the rotating speed of input shaft 1 be less than setting value, centrifugation fixture block 2 will not general
Input shaft 1 is connected with output shaft 10；When the rotating speed of input shaft 1 is higher than setting value, centrifugation fixture block 2 under the action of the centrifugal force, overcomes
The spring tension of keeper 12 in situ moves out, into the neck 7 of output shaft 10 so as to realizing input shaft 1 and output shaft 10
Connection, as shown in Figure 2；And because the fixture block 2 that such as centrifuges in design is made using the material of flexible deformable shock-resistant function
Or it is designed with shock-damping structure so that rotated at a high speed in input shaft 1, centrifugation fixture block 2 enters the neck 7 of output shaft 10, and input shaft 1 drives
When static output shaft 10 rotates, due to the cushioning effect of flexible deformable shock-resistant functional material, so as to avoid producing
Raw larger rigid shock.Magnetic attraction between centrifugation fixture block 2 and output shaft 10, more than centrifugation fixture block 2 and input shaft 1 it
Between keeper 12 in situ spring tension, even if then follow-up input shaft 1 stops the rotation, clutch also can still keep input shaft
1 with the connection of output shaft 10.When centrifugation fixture block 2 and output shaft 10 between connect keeper 6 caused by magnetic attraction, it is necessary to
The spring that centrifugal force and frictional force of fixture block 2 etc. are made a concerted effort between ability equilibrium centrifugation fixture block 2 and input shaft 1 is centrifuged under setting speed
Pulling force, then when the slow-speed of revolution of the rotating speed of input shaft 1 by dropping to setting at a high speed, centrifugation fixture block 2 is by the spring of keeper 12 in the original location
Resetted under pulling force effect, so as to realize the disconnection of input shaft 1 and output shaft 10, as shown in Figure 1.
In summary, the invention provides it is a kind of without control at a high speed triggering and can low speed keep clutch, can be in clutch
Device supplies without extraneous electric gas/liquid pressure equal energy source, it is not necessary to can normal work in the case of instruction or programme-control；When input shaft exceeds the speed limit
During operating, the connection of output shaft and input shaft is realized automatically, and transmits big torque；And the energy under the occasion and design point of needs
It is enough to realize steady transmission, avoid rigid shock；Especially after completing to connect, when input shaft rotating speed by being reduced to low speed at a high speed,
Still it is at stable connection hold mode；And there is simple in construction, reliability is high, maintainability is good, cost is cheap etc.
Advantage.
Although the present invention is illustrated using some preferred embodiments, but it is to be understood that this is not meant to the present invention
It will be limited to above example.On the contrary, the present invention is by including may be embodied in this hair being defined by the appended claims
Make and changing and modifications within bright spirit and scope.
Claims (9)
1. it is a kind of without control at a high speed triggering and can low speed keep clutch, mainly including input shaft, output shaft and centrifugation fixture block, its
It is characterised by：The clutch, can also normal work in the case where no outside resources supply and control；The output shaft
Neck is provided with, when input shaft rotating speed is higher than setting value, centrifugation fixture block is to peripheric movement and enters the neck of output shaft, realizes
The connection of input shaft and output shaft；The centrifugation fixture block is maintained in the neck of output shaft by magnetic attraction so that follow-up defeated
Even if enter rotating speed to be greatly lowered, or even stop the rotation, reliably connecting between input shaft and output shaft can be still realized
Connect, and the torque that can be transmitted can not be influenceed by rotating speed and direction of rotation.
2. it is according to claim 1 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：Centrifugation
Fixture block either input shaft or output shaft, shock-damping structure is made or is designed with using the material of flexible deformable shock-resistant function,
So that clutch has the function of elastic-like shaft coupling concurrently in connection again.
3. it is according to claim 1 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：It is described
Centrifugation fixture block is assemblied on input shaft by magnetic attraction, and centrifugation fixture block is permeability magnetic material or chimeric permeability magnetic material, input shaft and
Output shaft entirety or the magnetization of local action region are fitted together to permanent magnet so that centrifugation fixture block can be assemblied in defeated by magnetic attraction
Enter on axle, or can be adsorbed after entering output shaft neck in it；Or centrifugation fixture block by itself magnetization or is fitted together to forever
Magnet band is magnetic, and input shaft and output shaft entirety or local action region are permeability magnetic material or chimeric permanent magnet so that centrifugation
Fixture block can be assemblied on input shaft by magnetic attraction, or can be adsorbed after entering output shaft neck in it.
4. it is according to claim 1 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：It is described
Centrifugation fixture block is assemblied on input shaft by spring force, and centrifugation fixture block is permeability magnetic material or chimeric permeability magnetic material, and output shaft is overall
Or local action region magnetizes or is fitted together to permanent magnet so that centrifugation fixture block can be adsorbed in it after entering output shaft neck；
Or centrifugation fixture block by itself magnetization or is fitted together to permanent magnet band and is magnetic, output shaft entirety or local action region are magnetic conduction material
Material or chimeric permanent magnet so that centrifugation fixture block can be adsorbed in it after entering output shaft neck.
5. it is according to claim 4 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：It is described
Centrifugation fixture block is entered in the neck of output shaft, when realizing the connection of input shaft and output shaft, is centrifuged between fixture block and output shaft
Magnetic attraction be more than centrifugation fixture block and input shaft between spring force, even if then follow-up input shaft stops the rotation, clutch
The connection of input shaft and output shaft can still be kept.
6. it is according to claim 4 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：It is described
Centrifugation fixture block is entered in the neck of output shaft, when realizing the connection of input shaft and output shaft, is centrifuged between fixture block and output shaft
Magnetic attraction, it is necessary to the centrifugal force that fixture block is centrifuged under setting speed and frictional force etc. make a concerted effort could equilibrium centrifugation fixture block with it is defeated
Enter the spring force between axle, then when input shaft drops to the slow-speed of revolution of setting by high rotating speed, centrifugation fixture block will be in spring-force driven dual
Lower reset, so as to realize the disconnection of input shaft and output shaft.
7. it is according to claim 1 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：Centrifugation
Fixture block either input shaft or output shaft, the material of flexible deformable shock-resistant function is added in the mating surface of driving contact,
During so that input shaft driving the static output shaft to rotate, the rigid shock to driving-chain is avoided；And in driving-chain in itself
Provided with yielding coupling or the occasion impacted is resistant to, fixture block either input shaft or output shaft is centrifuged, then need not adopt
With or add flexible deformable shock-resistant function material or design shock-damping structure.
8. it is according to claim 1 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：Housing
Position corresponding with neck on output shaft offers reset hole, for promoting centrifugation fixture block to reset and realizing input shaft and output shaft
Disconnection.
9. it is according to claim 1 it is a kind of without control at a high speed triggering and can low speed keep clutch, it is characterised in that：It is described
Clutch is configured with the centrifugation fixture block no less than one, and when being disposed with multiple centrifugation fixture blocks, can be in input shaft rotating speed height
When setting value, the connection reliability of input shaft and output shaft is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653728.8A CN107448505A (en) | 2017-08-02 | 2017-08-02 | It is a kind of without control at a high speed triggering and can low speed keep clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710653728.8A CN107448505A (en) | 2017-08-02 | 2017-08-02 | It is a kind of without control at a high speed triggering and can low speed keep clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107448505A true CN107448505A (en) | 2017-12-08 |
Family
ID=60490225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710653728.8A Withdrawn CN107448505A (en) | 2017-08-02 | 2017-08-02 | It is a kind of without control at a high speed triggering and can low speed keep clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107448505A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506371A (en) * | 2018-04-25 | 2018-09-07 | 张微 | A kind of interruption that new-energy automobile uses acceleration clutch |
| CN108506367A (en) * | 2018-04-11 | 2018-09-07 | 陈学琴 | Flexible controllable clutch |
| CN110266177A (en) * | 2019-06-22 | 2019-09-20 | 石愈超 | A kind of magnetic shaft coupling |
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| CN110266177A (en) * | 2019-06-22 | 2019-09-20 | 石愈超 | A kind of magnetic shaft coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180205 Address after: 201100 Shanghai Minhang Bao Cheng Lu Nong 1 158 Room 601 No. Applicant after: Shanghai Yi excellent Elevator Safety Technology Co. Ltd. Address before: 201100 Shanghai Minhang Bao Cheng Lu Nong 1 158 Room 601 No. Applicant before: Tang Shuren Applicant before: Zhao Keshun Applicant before: Zhao Jing |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171208 |