CN1375644A - Centrifugal moment-limiting ball shaft coupling - Google Patents
Centrifugal moment-limiting ball shaft coupling Download PDFInfo
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- CN1375644A CN1375644A CN 01108396 CN01108396A CN1375644A CN 1375644 A CN1375644 A CN 1375644A CN 01108396 CN01108396 CN 01108396 CN 01108396 A CN01108396 A CN 01108396A CN 1375644 A CN1375644 A CN 1375644A
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- wheel
- star
- limiting ball
- ball shaft
- centrifugal moment
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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
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
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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
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
- F16D37/02—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The centrifugal range line type steel ball shaft coupling is characterized by that several dampers are mounted on the star-wheel shaft body between star-wheel blades, said damper structure comprises 4-6 brake blocks which are respectively fixed on the star-wheel shaft by means of disk springs, also can be formed from 4-12 tile-shaped permanent magnet blocks, leakage-proof gaskets positioned between them and external protective plate which are fixed on the star-wheel shaft body by means of fasteners. Said shaft coupling possesses resonable structure, good flexible starting property, small wear, long service life and other advantages.
Description
The present invention relates to a kind of mechanical power transmission device, especially the friction torque of utilizing the centrifugal body of steel ball to be produced when rotated between a kind of prime mover (motor, turbo machine, Reciprocating engine etc., below only explain with motor) and the load is come the structure improvement of a kind of flexible soft start coupling of transmitted power.
Applicant had once been applied for the utility model patent (patent No. 93211884.4) of " moment-limiting ball shaft coupling " by name in 1993.It mainly is that impeller is connected with prime mover main shaft, the driving link of forming transmitted power, load and coupling halfbody, left and right side cover, friction shell, glands etc. are linked into one, become ball coupling by kinetoplast, a steel ball prose style free from parallelism and red lead powder are distributed in the fan-shaped cavity that friction shell and impeller blade cut apart.Prime mover drives steel ball and throws to friction shell inwall and produce friction torque during work, when its during greater than the load resistive torque, drive and rotated by kinetoplast, realize the transmission of power.But still exist following shortcoming: 1. because square being directly proportional of the size of friction torque and input speed, and centrifugal working machine is as the same, so zero load soft start and coordination performance are relatively poor during transmission; 2. drive mechanism is single concentric transmission, the drive mechanism of the transmission of no band brake wheel and gear, sprocket wheel or belt pulley of parallel-axis type and so on; 3. sliding/friction merit loss height in the start-up course, the friction pair wearing and tearing are big, and the life-span is short; 4. can only the single speed transmission, can not with the supporting use of variable-pole multi-speed motor, use value is lower, practical field is narrow applies limitedly, technological achievement transforms slower; 5. installation, dismounting structurally do not have integrity, and it is inconvenient to install, use, safeguard.In addition, the powder in the friction pair infiltrates the inner chamber of bearing easily, causes the flexibility of coupling to connect inefficacy, deficiencies such as transmission performance destruction.
Goal of the invention of the present invention provides a kind of rational in infrastructure, and the soft start performance is good, and it is little to wear and tear, the centrifugal moment-limiting ball shaft coupling of long service life.
It is wider that another goal of the invention of the present invention provides a kind of applicability, and the reliability height uses, centrifugal moment-limiting ball shaft coupling easy to maintenance.
Goal of the invention of the present invention mainly is achieved by following technical proposals: be provided with several resistances and close device on the interlobate star-wheel axis body of star-wheel.Wherein, described star wheel series is made of star-wheel axis body and star-wheel blade provided thereon.Described resistance is closed the structure of device and can be adjusted accordingly according to the works such as working condition of institute's through-put power, rotating speed and working machine effect.For example, described resistance is closed device and can be fixed on the star-wheel axis body through the dish spring respectively by 4-6 shoe brake piece and constitute.Also can and be located at anti-leakage field pad therebetween and the fastening piece that watt shape permanent magnets and star-wheel axis body fix constituted by 4-12 piece watt shape permanent magnets; And outside described watt of shape permanent magnets, be provided with backplate.
In order to make the present invention can be applicable to occasions such as variable-pole multi-speed motor better, be provided with bearing between described star-wheel axis body and the auxilliary impeller; And between described auxilliary impeller and star-wheel blade, be provided with multi-disc friction clutch.Usually, when the power of working machine was big, described multi-disc friction clutch can adopt pneumatic transmission controlling mechanism to realize its clutch; For lower-powered working machine, then adopt the electromagnetic type clutch controller.
The present invention also can make the drive sprocket axle and the transmission configuration neatly of passive wheel shaft that are not in same axle center (as parallel to each other) by band drive wheel (as belt pulley or sprocket wheel etc.) except doing the concentric shafts transmission.At this moment, described right lid and friction shell can be made one, and its periphery is provided with the band driving groove.Also can make one with the friction shell by the right lid of described part, and be fixed with the band drive wheel in the one side.The former is applicable to the transmission of major diameter band drive wheel, and drive wheel and friction shell are united two into one, and makes structure more compact, reasonable; The latter then is applicable to the transmission of minor diameter band drive wheel.
In addition, at the other infrared rays detection device that skids that is provided with of described working machine, the wheel trolley of its detecting head contacts with the working machine rotating shaft.When the present invention in when work, skid just in case take place to transship, when the rotating speed of working machine is lower than rated speed 20% when above, this detection device promptly sends guard sign and cutoff command.
In order to overcome prior art infeasible in integral installation or dismounting, can cover on a described left side and be provided with auxiliary hole.Described auxiliary hole is uniform four apertures and center hole, uses corresponding with it special tool by this auxiliary hole, carries out integral installation or dismounting; Inboard at described left side lid is provided with annular slot, and an end of described star-wheel places in it.Like this, the side clearance of each fan-shaped cavity of star-wheel blade and the end of spider gear shaft are not directly linked up, and be tortuous shape, thereby avoid the Pb in the fan-shaped cavity
2O
5Powder directly enters in the interior bearing of star-wheel.
Cover on described friction shell and the right side and to be provided with 6-12 groove.So that take out the nylon pin, and has the effect of heat radiation and loss of weight.Cover on the described right side and to be provided with the sealing felt collar, and be provided with dust retaining ring, invade in the bearing with further blocks dust in the left side of bearing.
Described driven axle land can be halfbody (or band brake wheel halfbody) or is the passive belt drive wheel.
Therefore, the centrifugal moment-limiting ball shaft coupling that the present invention proposes has following advantage: 1) No Load Start, can change the fully loaded and big inertia heavy load starting of on-load into No Load Start, and can use the small capacity motor under near its operating point, to work.Desirable coefficient of reserve power is 1 during type selecting, and starting secondary power is zero, thereby the comparable original decline 1-2 seat No. of electric motor power, and economize on electricity reaches 10%-20%.Shorten starting time, reduce to start average current and electric motor overheating amount.The loss of start-up course work of slipping is low, wearing and tearing are little, and the life-span is long, 2) flexible connect soft, flexibility and rigid joint conversion sensitivity, the soft start performance is good.Can satisfy the usage requirement of the frequent alternately clockwise and anticlockwise of heavy duty operation working machine, fully loaded just changeing anxious counter-rotating rotation direction change steadily quick, the transition slyness, transmission system does not have shock and vibration.3) prevent overload, the protection motor exempts from stall and burns, and avoids serious accident to cause working machine to damage.4) load Multipoint Drive can be coordinated the evenly load distribution and the Synchronous Transmission of each motor.5) be applied to centrifugal working machine transmission, can realize that on-load is fully loaded to start, and compared originally, inrush current is little by 30%, starting time short 75-90%, start-up course is economized on electricity more than 70%, start-up course does not have impact to electrical network.Start effect and be better than plain ball coupling and fluid coupling.6) can satisfy the two speed transmissions requirement of variable-pole multi-speed motor.7) practical, commercial Application is extensive.Driving type can be concentric shafts, band brake wheel concentric shafts, parallel axes band (key, tooth) wheel transmission etc.Can horizontal transmission, inclination transmission and vertical transmission.Can satisfy the usage requirement of any kind working machine under any operating mode and environment.8) compare with load limiting type of constant filling fluid coupling, except that performance was identical, it was good also to have unloaded soft start performance, simple and reliable for structure, volume is little, light weight, price is low, the transmission efficiency height, and the transmission speed ratio weighing apparatus is fixed constant, mesh power (3-5500kw) and input speed (500-3000r/min) have a wide reach, easy accessibility, and working service is simple, expense is low, long service life, steel ball are once changed the number of starts and are reached 10000-40000 time, and advantage such as the kind of drive is various.
Accompanying drawing 1 is a kind of side view that partly cuts open of the present invention;
Accompanying drawing 2 is A-A sectional views of accompanying drawing 1;
Accompanying drawing 3 is partial sectional views that device is closed in a kind of resistance among the present invention;
Accompanying drawing 4 is partial side views that device is closed in a kind of resistance among the present invention;
Accompanying drawing 5 is partial sectional views that device is closed in the another kind resistance among the present invention;
Accompanying drawing 6 is another kind of sectional structure schematic representation of belt leather belt wheel of the present invention;
Accompanying drawing 7 is the third structural representations that partly cut open of belt leather belt wheel of the present invention;
Accompanying drawing 8 is the 4th kind of sectional structure schematic representation of the present invention;
Accompanying drawing 9 is the rotating speed of the present invention and motor and several working machines commonly used and the relation curve schematic representation between torque.
Below by embodiment, and in conjunction with the accompanying drawings, the present invention is done to describe further.
Embodiment 1: the endoporus of star-wheel 12 connects with motor main shaft, and the periphery of star-wheel 12 is provided with bearing 13, is equipped with right lid 20 on it; Be provided with felt collar 18 in the right lid 20, be provided with dust retaining ring 19 therebetween, at the bearing 13 other back-up rings 14 that are provided with; Be provided with perigone 17 in the outside of right side lid 20 and by the overload that sheet spring, bullet pad, screw the are formed alarm 16 that skids; When overload is skidded, the sheet spring promptly with perigone 17 on the inclined-plane produce sliding friction and send sound (machinery for need clockwise and anticlockwise alternate run is not then established), make operator's processing of in time shutting down.On the axle of left side lid 5 and be provided with bearing 13 between the star-wheel bearing hole, its outer dust retaining ring 19 that is provided with the L type; The arranged outside of covering 5 central parts on a left side has shrouding 25, with the intrusion of dust protection.Star-wheel 12 between left side lid 5 and the right lid 20 is provided with resistance and closes device 8.Wherein, to close device 8 be to be individually fixed on the star-wheel 12 through dish spring 81 respectively by 6 shoe brake pieces 82 and to constitute (referring to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 5) in described resistance.Promptly be a kind of band butterfly spring brake shoe formula, be used for 2 utmost points and 4 very big type electric motor drive, and can be supporting with the working machine of any kind.
Close the centrifugal body 9 of steel ball and a certain proportion of Pb of the arranged outside Φ 4mm-Φ 6mm of device 8 in described resistance
2O
5Powder, and be distributed in six fan-shaped cavities 40 that are separated into by star-wheel blade 4.In the arranged outside of six fan-shaped cavities the friction shell 22 of circular many grooves is arranged, twist on it and being provided with reinforced plug 7, with the usefulness of the wear extent of the quantity of adjusting the centrifugal body 9 of steel ball according to the needs of operation or the centrifugal body 9 of sampling Detection steel ball.Internal surface and the centrifugal body 9 of steel ball of the cavity 40 that is surrounded by friction shell 22, left side lid 5, right lid 20 and star-wheel 12 constitute friction pair, and the mechanical energy that motor is imported changes friction torque M into
F, and realize multinomial transmission performance with this.
Left side lid 5 is provided with auxiliary hole 27, so that pass through the special tool in insertion process hole, beats (pressure) star-wheel 12 axis bodies and roof pressure electric machine main shaft, can implement integral installation and dismantlement work.And the halfbody 1 that links to each other with the load main shaft (or the halfbody of band brake wheel, figure is slightly) be arranged at left 5 the left side of covering, and be assembled into one by 6-12 stretchy nylon pin 24 and fastening piece 3, constitute the present invention's driven off by shaft a kind of structural type with one heart.In addition, also friction shell 22 can be made integral circular shape (place offers skewed slot at the nylon pin, and in order to ejecting pin, figure slightly), the structure and the function of friction shell and Brake drum be united two into one, to satisfy the usage requirement of narrow occasion between motor and the load.
Embodiment 2: device 8 is closed in described resistance also can and be located at the anti-leakage field pad of being made by non-magnet material 84 of its below with 12 pieces watts of shape permanent magnets 83, is fixed on by fastening piece 80 on the axis body of star-wheel 12; And be provided with backplate 85 described watt of shape permanent magnets 83 peripheries.Described backplate 85 can adopt steel plate to make, and makes it have the effect (referring to accompanying drawing 3 and accompanying drawing 4) of uniform magnetic field and protection permanent magnets 83.It mainly is applicable to the 4 extremely middle-size and small-size and very big average-sized motor transmissions of 6-10.
Embodiment 3: accompanying drawing 6 and accompanying drawing 7 are structural representations of another kind of derivation type of the present invention.It mainly is the friction shell 22 in embodiment's 1 right assembly, right lid 20 to be fused with the structure of being with drive wheel 6, function be one, and halfbody 1 is changed on the driven axle that the passive belt drive wheel is installed in driving shaft parallels.Wherein, when the diameter of employed band drive wheel was big, the periphery of the shell 22 that can directly rub was provided with band driving groove 10, and right Gai Yuqi is united two into one, and a left side is covered 5 and is fixed in the one side by fastening piece 3, in be provided with to hinder and close device 8 and the centrifugal body 9 of steel ball; When the diameter of employed band drive wheel hour, described band drive wheel 6 is arranged at a side, and by fastening piece both is fixed into one.Other structure and embodiment 1 are similar.
Embodiment 4: referring to accompanying drawing 8, it is to have set up an auxilliary impeller 29 on embodiment 1 basis, and magnetic patch formula resistance is housed in auxilliary impeller 29 closes device 8.Be provided with bearing 13 between auxilliary impeller and the star-wheel axis body, be provided with axle sleeve 51 and black box 52 on the right side of bearing.Between auxilliary impeller and star-wheel blade, be provided with multiplate clutch 28.The size of the concrete structure of clutch institute's transmitted power and different according to the present invention.In low power occasion, can pass through both positive and negative polarity slip ring 53, make external low tension power supply with power delivery to electromagnetism multi-disc friction clutch 28; In more powerful use occasion, then external source of the gas is by swivel joint gas control multi-disc friction clutch 28.Other structure and embodiment 1 are similar.When through-put power during at the high speed level work, multi-disc friction clutch 28 is disengaged condition under electromagnetism (or pneumatic) control action, and realizes the power transmission of high rotating speed operating mode.When the rotating speed of motor when slow speed turbine stage is worked, this clutch is in jointing state, at this moment, star-wheel 12 and auxilliary impeller 29 synchronous workings are to realize the power transmission under the slow-speed of revolution.
By the rotation of motor band star-wheel, the centrifugal body of steel ball is subjected to centrifugal force and resistance to close the device effect under star-wheel drives and presses to friction shell and left and right lid inwall, and the generation friction torque is come transmitted power when work in the present invention.As friction torque M
FGreater than load resistive torque M
LThe time, just steadily drag the load stable state of moving reliably and travel at the uniform speed; Or starting load and accelerate to working speed and enter operating conditions.Otherwise the load speed that is moving is descended even stall (overload is skidded); Or can not starting load and keep its former state of rest, and the No Load Start motor describes every performance of the present invention in detail below in conjunction with accompanying drawing 9.
One. about unloaded soft start performance.Can the condition that realize the unloaded soft start of motor be that the external characteristics figure of coupling and working machine must have intersection point, the rotation speed n that it is corresponding
tClaim load to start critical speed of rotation.Work as motor speed n during startup
d≤ n
tThe time, M
F＜M
L, load keeps original static state, the then approximate band of the motor star-wheel No Load Start that takes the lead in, and skid and at n in the flexible connection place of coupling
tThe time slippage maximum.Work as n
d＞n
tThe time, M
F＞M
L, motor begins to drag load and entered for second step start up period, and it starts additional torque M
F-M
LJust determined the angular acceleration that load starts, the flexible connection place of coupling slippage reduces until fully synchronously, is connected by flexibility and changes rigid joint into, and then motor and load rise to steady running condition together with common rotating speed.Therefore, n
tBigger, unloaded soft start performance just better.And n
tHeight have a direct impact with the external characteristics that coupling and working machine cooperate.The external characteristics functional expression M of plain ball coupling (power saving safety coupling of former moment-limiting ball shaft coupling ex hoc genus anne)
F=f (n
2), its figure is the second-degree parabola OA by the right angled coordinates initial point
1F; And the working machine type has centrifugal type M
L=f (n
2), etc. slope type M
L=f (n), weighing apparatus torque type M
L=constant, weighing apparatus power-type M
L=f (n
-1) etc.With centrifugal working machine is example, and its external characteristics figure is one and passes through O on the y coordinate of right angled coordinates
2The second-degree parabola O of point
2A
1K, when it cooperated with the plain ball coupling, both external characteristics intersection points were A
1, the torque M that this point is corresponding
L1And rotation speed n
T1All very low.Like this, not only the take the lead in rotating speed gradient of No Load Start of motor is little, weak effect, and entered for second step and drag load when starting, (be M owing to start additional torque
F1-M
L1) very little, thereby spin out the load start-up course, postpone working machine and drop into steady-state operation.
After the present invention is provided with resistance and closes device, in start-up course, can make the centrifugal body of steel ball stand the double action that the device resistance is closed in centrifugal force and resistance, thereby change and improve the external characteristics figure of plain ball coupling, reach n
tThe good effect of unloaded soft start performance that increases substantially.Device is closed in resistance for the magnetic patch formula, and permanent magnets is adsorbed total steel ball on it, at motor n
d=(0.2-0.25) n
kBefore, the suffered centrifugal force of the centrifugal body of steel ball is less than the adsorption force of magnetic patch, and friction shell inwall does not have steel ball and exists, so M
F=0.Along with n
dIncreasing the suffered centrifugal force of the centrifugal body of steel ball be adsorbed on the magnetic patch overcomes residue active force behind the magnetic force and makes steel ball pursue grain to break away from a magnetic patch and fly to the friction shell, at this moment the centroid radius and the quality that are attached to the centrifugal body of steel ball on the magnetic patch reduce gradually, the centrifugal force that needs higher rotating speed to produce just can overcome magnetic force and fly away from by steel ball, to n
d=(0.8-0.9) n
kShi Gangqiu just can all close with the friction shell joint, and its external characteristics figure is improved as curve O
1A
2BF, and make former intersection point A
1Be promoted to A
2Point, and that the BF section still keeps original figure is constant.Device is closed in this resistance because coupling body when working under declared working condition point, the suffered centrifugal force of the centrifugal body of steel ball nearly 80 times to magnetic force, so magnetic force is to stable state transmission did not influence.Device is closed in resistance to band butterfly spring brake shoe formula, has at first reduced the loading of the centrifugal body of steel ball, the friction torque M that it is produced under centrifugal action
FAll the time less than the resistive torque M of load
LMultilayer butterfly spring is attached to the brake shoe pressure on the star-wheel axle housing under the effect of fastening piece pretightening force, and distribution radius leaves path increment in the centrifugal body of brake shoe outer radius and steel ball.When the motor start-up rotation speed n
d=0.7n
kThe time, brake shoe is outwards upheld at centrifugal action lower compression butterfly spring, path increment during to δ brake shoe contact with steel ball, but the residue active force is zero after centrifugal force and the butterfly spring compressive force balance, friction torque at this moment only is that steel ball produces.Work as n
d＞0.7n
kAfter, brake shoe just has the residue active force that increases gradually and puts on the friction shell by steel ball, and at this moment the friction torque of coupling is the summation of steel ball and brake shoe friction torque.Device is closed in this resistance can be improved as curve OCA with former external characteristics figure
3F, thus make intersection point A
1Be promoted to higher A
3The point.
Two. about the overload protection performance.The present invention matches with motor, makes the intersection point of both external characteristics figures be designed to the safety limit square value [M of overload protection of the present invention
F] limit.This point is between motor peak torque M
mWith nominal torque M
kBetween somewhere F point, corresponding rotating speed is n
L, the present invention had both possessed the motor overload protection performance like this, can bring into play it again and allow the characteristics that overload in short-term.When motor is worked under declared working condition, torque M
kAnd rotation speed n
k, the design friction torque M that the present invention at this moment possesses
s=kM
k, torque reserve coefficient k＞1, the present invention be rigid joint can be steadily transmitted power reliably, and guarantee that the transmission speed ratio weighing apparatus is fixed constant.When motor output torque with the load resistive torque by M
kIncrease to [M
F] time, rotating speed is then by n
kReduce to n slightly
L, friction torque of the present invention is then by M
sPlunge to [M
F], the torque reserve coefficient is reduced to k=1, and " slippage " trend just appears in the place at the F point, and begins to change into flexible the connection by rigid joint.This overload is skidded and is made motor and load throw off and unlikelyly cause the overload stall to burn and damage.Because the long-pending value of the speed pressure that skids of overload is very big, the unmanned processing of skidding for a long time can cause friction pair to cross that thermal annealing lost efficacy and " the flexible connection " destruction and the motor stall is burnt.For guaranteeing the safety of the present invention and working machine, when supporting with IV～VI class working machine or be in frequent serious long-term overlond running operating mode and the remote auto controlling filed fashionable, the infrared rays detection device that skids can be set to be monitored, when overload is skidded when making the working machine rotating speed be lower than its rated speed 20%, just output signal, alarm and parking.The thermal annealing of crossing that stretchy nylon pin of the present invention can prevent also that transshipping skids to be caused lost efficacy, and when overload is skidded when making body temperature rise to 175 ℃, the nylon pin just can soften to be cut off and stop.The overload of the setting of the present invention sound that impacts that the sheet spring of alarm buzzer skids and sends in overload that skids also can remind operator on the scene in time to shut down processing in addition.
Three. about coordinating multimachine load distribution performance.Essence is the extension of No Load Start and overload protection performance, and just it designs at [M with the intersection point of motor external characteristics figure
F] somewhere, below of limit F.Coordination performance can solve the sequence starting of Multipoint Drive simple and reliablely, three difficult problems of symmetrical load Synchronous Transmission and overload protection.
Claims (10)
1. centrifugal moment-limiting ball shaft coupling, comprise the star-wheel that is provided with blade that links to each other with prime mover, with be located at its outer and with about the friction shell that links to each other of lid and place therebetween the centrifugal body of steel ball, be provided with the driven axle land in the one side, it is characterized in that being provided with several resistances on the axis body of the star-wheel (12) between star-wheel blade (4) closes device (8).
2. centrifugal moment-limiting ball shaft coupling as claimed in claim 1 is characterized in that described resistance closes device system and be fixed on the axis body of star-wheel (12) and constitute through dish spring (81) respectively by 4-6 shoe brake piece (82).
3. centrifugal moment-limiting ball shaft coupling as claimed in claim 1, it is characterized in that described resistance closes device system by 4-12 piece watt shape permanent magnets (83) and fastening piece (3) formation being located at anti-leakage field pad (84) therebetween and will watt shape permanent magnets (83) fixing with the axis body of star-wheel (12); And outside described watt of shape permanent magnets (83), be provided with backplate (85).
4. centrifugal moment-limiting ball shaft coupling as claimed in claim 1 is characterized in that being provided with bearing (13) between the axis body of described star-wheel (12) and the auxilliary impeller (29); And between described auxilliary impeller (29) and star-wheel blade (4), be provided with multi-disc friction clutch (28).
5. as claim 1 or 2 or 3 or 4 described centrifugal moment-limiting ball shaft couplings, it is characterized in that (20) are covered on the described right side and friction shell (22) is made one, and its periphery is provided with band driving groove (10).
6. as claim 1 or 2 or 3 or 4 described centrifugal moment-limiting ball shaft couplings, it is characterized in that (20) are covered on the described part right side and friction shell (22) is made one, and be fixed with band drive wheel (6) in the one side.
7. as claim 1 or 2 or 3 or 4 described centrifugal moment-limiting ball shaft couplings, it is characterized in that the wheel trolley of its detecting head contacts with the working machine rotating shaft at the other infrared rays detection device that skids that is provided with of described working machine.
8. as claim 1 or 2 or 3 or 4 described centrifugal moment-limiting ball shaft couplings, it is characterized in that described left side lid (5) is provided with auxiliary hole (27); The inboard of described left side lid (5) is provided with annular slot (2), and an end of described star-wheel (12) places in it.
9. as claim 1 or 2 or 3 or 4 described centrifugal moment-limiting ball shaft couplings, it is characterized in that on described friction shell (22) He Yougai (20), being provided with a plurality of grooves (33).
10. as claim 1 or 2 or 3 or 4 described centrifugal moment-limiting ball shaft couplings, it is characterized in that on described right lid (20), being provided with sealing felt collar (18), and be provided with dust retaining ring (19) in the left side of bearing (13).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011083964A CN1182333C (en) | 2001-03-16 | 2001-03-16 | Centrifugal moment-limiting ball shaft coupling |
| PCT/CN2002/000160 WO2002075173A1 (en) | 2001-03-16 | 2002-03-14 | A moment-limited centrifugal ball coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011083964A CN1182333C (en) | 2001-03-16 | 2001-03-16 | Centrifugal moment-limiting ball shaft coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1375644A true CN1375644A (en) | 2002-10-23 |
| CN1182333C CN1182333C (en) | 2004-12-29 |
Family
ID=4657217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011083964A Expired - Fee Related CN1182333C (en) | 2001-03-16 | 2001-03-16 | Centrifugal moment-limiting ball shaft coupling |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1182333C (en) |
| WO (1) | WO2002075173A1 (en) |
Cited By (6)
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| WO2004106764A1 (en) * | 2003-05-29 | 2004-12-09 | Zhongyuan Hong | Mechanical soft-actuated coupling |
| CN104358802A (en) * | 2014-10-27 | 2015-02-18 | 辽宁工程技术大学 | Vertical shaft coupling type steel ball medium clutch |
| CN106160582A (en) * | 2016-08-30 | 2016-11-23 | 魏稼丰 | The centrifugal soft initiator of precompressed enhancement mode |
| CN106195059A (en) * | 2016-08-31 | 2016-12-07 | 德阳立达基础件有限公司 | A kind of soft start steel-ball type safety coupling and structure computation method thereof |
| CN108799370A (en) * | 2018-07-27 | 2018-11-13 | 逄增志 | A kind of automatic aligning shaft coupling and its electromagnetic brake |
| CN109158941A (en) * | 2017-10-25 | 2019-01-08 | 杭州富阳锦丰纸业有限公司 | It is a kind of for building the torque limiter of electric drilling device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107612259B (en) * | 2017-10-31 | 2023-08-04 | 天津昊野科技有限公司 | Oil-resistant high-power-density high-speed permanent magnet synchronous motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2910160A (en) * | 1955-11-12 | 1959-10-27 | Meder Max | Centrifugal force coupling |
| GB885432A (en) * | 1959-08-11 | 1961-12-28 | Max Meder | Improvements in or relating to centrifugal clutches |
| US3190422A (en) * | 1961-04-07 | 1965-06-22 | Daimler Benz Ag | Centrifugal clutch with vibration damper |
| CN1023339C (en) * | 1988-12-17 | 1993-12-29 | 北京科技大学 | Power saving safety coupling |
| CN2157354Y (en) * | 1993-04-30 | 1994-02-23 | 洪中元 | Moment limit ball coupling |
-
2001
- 2001-03-16 CN CNB011083964A patent/CN1182333C/en not_active Expired - Fee Related
-
2002
- 2002-03-14 WO PCT/CN2002/000160 patent/WO2002075173A1/en not_active Application Discontinuation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004106764A1 (en) * | 2003-05-29 | 2004-12-09 | Zhongyuan Hong | Mechanical soft-actuated coupling |
| CN104358802A (en) * | 2014-10-27 | 2015-02-18 | 辽宁工程技术大学 | Vertical shaft coupling type steel ball medium clutch |
| CN104358802B (en) * | 2014-10-27 | 2017-03-22 | 辽宁工程技术大学 | vertical shaft coupling type steel ball medium clutch |
| CN106160582A (en) * | 2016-08-30 | 2016-11-23 | 魏稼丰 | The centrifugal soft initiator of precompressed enhancement mode |
| CN106160582B (en) * | 2016-08-30 | 2019-01-08 | 魏稼丰 | The enhanced centrifugal soft activator of precompressed |
| CN106195059A (en) * | 2016-08-31 | 2016-12-07 | 德阳立达基础件有限公司 | A kind of soft start steel-ball type safety coupling and structure computation method thereof |
| CN106195059B (en) * | 2016-08-31 | 2018-04-24 | 德阳立达基础件有限公司 | A kind of soft start steel-ball type safety coupling and its structure computation method |
| CN109158941A (en) * | 2017-10-25 | 2019-01-08 | 杭州富阳锦丰纸业有限公司 | It is a kind of for building the torque limiter of electric drilling device |
| CN109158941B (en) * | 2017-10-25 | 2020-07-31 | 杭州富阳通讯塑料厂 | Torque limiter for electric drill equipment for building |
| CN108799370A (en) * | 2018-07-27 | 2018-11-13 | 逄增志 | A kind of automatic aligning shaft coupling and its electromagnetic brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1182333C (en) | 2004-12-29 |
| WO2002075173A1 (en) | 2002-09-26 |
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