CN105474794B - There is the friction clutch of the two-way different moment of unidirectional elastic torsion function - Google Patents
There is the friction clutch of the two-way different moment of unidirectional elastic torsion functionInfo
- Publication number
- CN105474794B CN105474794B CN201010034629.XA CN201010034629A CN105474794B CN 105474794 B CN105474794 B CN 105474794B CN 201010034629 A CN201010034629 A CN 201010034629A CN 105474794 B CN105474794 B CN 105474794B
- Authority
- CN
- China
- Prior art keywords
- gear
- clutch
- spring
- compression plate
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007906 compression Methods 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000003032 molecular docking Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 230000003139 buffering Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses a kind of friction clutch with the two-way different moment of unidirectional elastic torsion function, this friction clutch adopts the work of Compress Spring, and in it, outside friction disc fits together, and clutch principal and subordinate part is in jointing state; Utilize the difference of compression plate and steel ball wrapping angle in suitable, counter clockwise direction, when loading moment reaches certain numerical value, or when being greater than maximum output torque, this clutch just starts clutch (skidding); Add plane nest coil spring in one rotational direction, at this direction clutch, load first must overcome the moment of nest coil spring, is twisted completely, the beginning clutch of clutch at nest coil spring in fixed stroke range.This device can play positive and negative both direction torsion pass, can accomplish again the effect of shock absorbing load, power consumption, protection Transmitted chains; The present invention can realize the braking of the different moment of positive and negative both direction, is particularly useful for the operating mode needing positive and negative both direction slipping torque, as dynamo-electric hybrid type docking mechanism.<pb pnum="1" />
Description
Technical field
The present invention relates to a kind of friction clutch device; the braking of the different moment of positive and negative both direction can be realized; be particularly useful for the operating mode needing positive and negative both direction slipping torque; as dynamo-electric hybrid type docking mechanism; or other has the device of braking, buffering energy-consumption functional requirement, play a part to protect Transmitted chains.
Background technique
At present, known friction clutch is made up of friction material, pressurization device etc., and general steel ball clutch adopts steel ball-ramp structure to reach the object of overload clutch.These two kinds common clutches can only provide the clutch under single operating mode.So under positive and negative two kinds of operating modes, when needing different clutch moment, existing this clutch is helpless.
Summary of the invention
For the above-mentioned deficiency of prior art; technical problem to be solved by this invention proposes a kind of moment of torsion that can transmit positive and negative both direction and need; and the energy in certain direction when aircraft cushions can be consumed, play the friction clutch of protection motor and Transmitted chains effect simultaneously.
The present invention is the technological scheme that its technical problem of solution adopts: a kind of friction clutch with the two-way different moment of unidirectional elastic torsion function, comprise screw, bearing, sleeve, gear, cam disk, cam sleeve, plane nest coil spring, barrel, bayonet lock, baffle plate, gear compression plate, axle, internal sheet, outer plate, retainer, steel ball, compression plate, spring compression dish, stage clip, spring holder, fastening nut and bearing door etc., the compression plate of this clutch is gear interface, gear compression plate is through bearing and bearings, and there are between compression plate four equal-sized steel balls, steel ball is in the wedge shape cavity of two compression plates formation, the synchronism of ball motion is ensured by retainer, compression plate is by being fixed on the spring compression with precompression on spring compression dish, spring is fixed by spring holder, and spring holder is located by bearing, through fastening nut Regulation spring pressure, outer plate is set in inside the inner spline groove of gear compression plate, outer plate and internal sheet interval are placed, and internal sheet is enclosed within the spline of axle, be pressed on block after combination is placed at internal sheet and outer plate interval, block is fixed by screws on axle, flat key on axle connects cam sleeve, and cam sleeve has groove, and plane nest coil spring is set in the groove of cam sleeve, and one end of plane nest coil spring is fixed on barrel by bayonet lock, and barrel is connected with gear screw, and gear is output terminal, cam sleeve has the protruding block of several angle, gear interior edge face also has protruding block, joint transmission between protruding block and two cam disks.
The present invention is by the work of Compress Spring, and in it, outside friction disc (internal sheet, outer plate) fits together, and clutch principal and subordinate part is in jointing state.Utilize the difference of compression plate and steel ball wrapping angle in suitable, counter clockwise direction, thus when input torque one timing, the axial pressure of compression plate to steel ball just there is difference.So same input torque is when forward and reverse input, different output torques can be obtained.When loading moment reaches certain numerical value, or when being greater than maximum output torque, this clutch just starts clutch (skidding).Wherein, (on T1 direction as shown in Figure 2) adds plane nest coil spring in one rotational direction, at this direction clutch, load first must overcome the moment (T as shown in Figure 2) of nest coil spring, (T≤T1) is completely twisted in fixed stroke range at nest coil spring, the beginning clutch of clutch, now moment is (T1).So this device can play positive and negative both direction torsion pass (T1 and T2 as shown in Figure 2), the effect of shock absorbing load, power consumption, protection Transmitted chains can be accomplished again.In addition, the present invention adopts pure mechanical structure, and therefore its structure is simple, and reliability is high.
Accompanying drawing explanation
Fig. 1 is the structural drawing that the present invention has the friction clutch of the two-way different moment of unisexuality elastic torsion function.
Fig. 2 is the torque factor figure that the present invention has the friction clutch of the two-way different moment of unisexuality elastic torsion function.
Fig. 3 is the mould dress external form figure that the present invention has the friction clutch of the two-way different moment of unisexuality elastic torsion function.
Wherein: 1 is screw; 2 is bearing; 3 is sleeve; 4 is gear; 5 is cam disk; 6 is cam sleeve; 7 is screw; 8 is plane nest coil spring; 9 is barrel; 10 is bayonet lock; 11 is screw; 12 is baffle plate; 13 is bearing; 14 is bearing; 15 is gear compression plate; 16 is axle; 17 is internal sheet; 18 is outer plate; 19 is retainer; 20 is steel ball; 21 is compression plate; 22 is spring compression dish; 23 for having the spring of precompression; 24 is spring holder; 25 is fastening nut; 26 is block; 27 is pad; 28 is flat key; 29 is bearing door.
Embodiment
Below in conjunction with the drawings and specific embodiments, set forth the present invention further.These embodiments are interpreted as only being not used in for illustration of the present invention limiting the scope of the invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalence changes and modification fall into the scope of the claims in the present invention equally.
As shown in figs. 1 and 3, the friction clutch of the two-way different moment of unidirectional elastic torsion function that what the preferred embodiment of the present invention provided have, comprise screw, bearing, sleeve, gear, cam disk, cam sleeve, plane nest coil spring, barrel, bayonet lock, baffle plate, gear compression plate, axle, spring sheet (internal sheet, outer plate), retainer, steel ball, compression plate, spring compression dish, stage clip, spring holder, fastening nut, the compositions such as bearing door, the gear compression plate 15 of this clutch is meshed by other carry-on gears, gear compression plate 15 supports through bearing 13 and bearing 14, and between compression plate 21, have four equal-sized steel balls 20, steel ball 20 is in the wedge shape cavity of two compression plates formation, the synchronism that ball moves is ensured by retainer 19.Compression plate 21 is compressed by the spring 23 with precompression be fixed on spring compression dish 22.Spring 23 is fixed by spring holder 24, and spring holder 24 is located by bearing, through fastening nut 25 Regulation spring pressure.Outer plate 18 is enclosed within inside the inner spline groove of gear compression plate 15.Outer plate 18 and internal sheet 17 interval are placed, and internal sheet 17 is enclosed within the spline of axle 16.Be pressed on block 26 after interior outer plate combination, block 26 is fixed by screws on axle 16.Flat key 28 on axle 16 connects cam sleeve 6, fluted on cam sleeve 6, plane nest coil spring 8 is a set of to be inserted in the groove of cam sleeve 6, and one end of plane nest coil spring 8 is fixed on barrel 9 by bayonet lock 10, barrel 9 is connected with gear 4 screw, and gear 4 is output terminal.
In the present embodiment, internal sheet 17 and outer plate 18 pairing material are that powder metallurgy sintered copper base is to stainless steel.As shown in Figure 1, the positive pressure of internal sheet 17 and outer plate 18 comes from 8 uniform springs 23.The Placement of internal sheet 17, outer plate 18 and output shaft 16 and internal spline is spline form.The compression plate 21 of steel ball 20 and band wedge surface adopts different materials, prevents vacuum cold welding, and by steel ball-wedge surface effect, utilizes the frictional force torsion pass of internal sheet 17 and outer plate 18, and wedge surface adopts two angle pairing, therefore can realize the different torsion passes of transmitting both direction.Moment values and spring, the wedge surface angle of the positive and negative both direction transmitted have specific mathematical relationship.
Cam sleeve 6 has a projection, gear interior edge face also has a projection, axle is between which gone back empty set two cam disks 5, stationary barrel 9, swing pinion 4, the relative movement by gear 4 and barrel 9 realizes spring initial torque as shown in Figure 2, realizes especially by screw 7.Like this, when axle 16 (from looking at from left to right) rotates clockwise, gear 4 is turned round, when two cam disks 5 revolve the skidding of outer plate in realization completely by plane nest coil spring during large carrying; And axle 16 is when being rotated counterclockwise, between cam disk and cam sleeve, be close to as being rigidly connected between gear 4 projection, be realize T2 slipping torque as shown in Figure 2 by large load.
The present embodiment adopt there is differing tilt angles plane when clockwise and anticlockwise and ball tangent; At this moment, horizontal component and the spring force acting in conjunction of steel ball transmitting force is utilized, as the positive pressure of friction pair; Because the tilt angle in tangent plane is different, its horizontal component is also different, then also different to the positive pressure of friction pair from spring force acting in conjunction, and different positive pressure, at the end face of friction pair, forms the slipping torque that friction pair is different.
Setting is input as positive drive from gear compression plate 15, is input as inverse transmission from gear 4 end; Eye left from the right of Fig. 1, clockwise direction is forward transmission, is counterclockwise reversing drive.When giving the driving of gear compression plate 15 direction, can be known by above-mentioned introduction, when output terminal does not apply loading moment, due to the rubbing action between friction plate, whole kinematic chain can get into smooth smoothly, if the load applied, first coil spring is turned round (buffering), when two cam disks 5 revolve the skidding T1 of outer plate in realization completely.Otherwise, during gear compression plate 15 reverse direction actuation, as the load >=T2Nm applied, there is friction slip (see Fig. 2).In above-mentioned two kinds of positive drive, input speed scope can at 0 ~ 3000rpm.
The present invention can also work like this: as in the occasion not allowing inverse transmission, can protect Transmitted chains.That is the Transmitted chains before gear compression plate 15 does not allow to occur against the situation of transmission, and define gear compression plate 15 by special device can not reverse transmission.At this moment, when output shaft occurring the phenomenon of inverse transmission, its transmission energy, by first consuming part energy by the friction after plane nest coil spring (energy storage) buffering again between interior outside friction disc, plays the effect of protection Transmitted chains.
Although contact a preferred embodiment of the present invention is described by the present invention, should be appreciated that this and do not mean that the present invention will be confined to this embodiment.On the contrary, the present invention substitutes to comprise in the spirit and scope of the present invention that can be included in and be limited by appending claims all, changes and equivalent.
Claims (1)
1. one kind has the friction clutch of the two-way different moment of unidirectional elastic torsion function, it is characterized in that, comprise screw, bearing, sleeve, gear, cam disk, cam sleeve, plane nest coil spring, barrel, bayonet lock, baffle plate, block, gear compression plate, axle, internal sheet, outer plate, retainer, steel ball, compression plate, spring compression dish, stage clip, spring holder, fastening nut and bearing door, the gear compression plate of this clutch is gear, by the input realizing moving that is meshed with carry-on gear, gear compression plate is by two bearings, there are between gear compression plate and compression plate four equal-sized steel balls, steel ball is in the wedge shape cavity of gear compression plate and compression plate formation, the synchronism of steel ball motion is ensured by retainer, compression plate is by being fixed on the spring compression with precompression on spring compression dish, spring is fixed by spring holder, and spring holder is located by bearing, through fastening nut Regulation spring pressure, outer plate is enclosed within inside the inner spline groove of gear compression plate, outer plate and internal sheet interval are placed, and internal sheet is enclosed within the spline of axle, be pressed on block after combination is placed at internal sheet and outer plate interval, block is fixed by screws on axle, flat key on axle connects cam sleeve, and cam sleeve has groove, and plane nest coil spring is set in the groove of cam sleeve, and one end of plane nest coil spring is fixed on barrel by bayonet lock, and barrel is connected with gear screw, and gear is output terminal, cam sleeve has the protruding block of several angle, gear interior edge face also has protruding block, gear, realizes rotating joint transmission by protruding block between cam sleeve and two cam disks.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105474794B true CN105474794B (en) | 2014-11-12 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120239A (en) * | 2017-03-10 | 2017-09-01 | 利恩传动设备（常州）有限公司 | Wind-driven generator |
| CN110963434A (en) * | 2019-12-31 | 2020-04-07 | 徐州科源液压股份有限公司 | Brake for lifting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120239A (en) * | 2017-03-10 | 2017-09-01 | 利恩传动设备（常州）有限公司 | Wind-driven generator |
| CN110963434A (en) * | 2019-12-31 | 2020-04-07 | 徐州科源液压股份有限公司 | Brake for lifting |
| CN110963434B (en) * | 2019-12-31 | 2021-01-29 | 徐州科源液压股份有限公司 | Brake for lifting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted |