CN104335715B - The proving installation of multi-disc friction pair in aircraft devices - Google Patents
The proving installation of multi-disc friction pair in aircraft devicesInfo
- Publication number
- CN104335715B CN104335715B CN200710082956.0A CN200710082956A CN104335715B CN 104335715 B CN104335715 B CN 104335715B CN 200710082956 A CN200710082956 A CN 200710082956A CN 104335715 B CN104335715 B CN 104335715B
- Authority
- CN
- China
- Prior art keywords
- friction
- spring
- output shaft
- friction pair
- input shaft
- 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.)
- Expired - Fee Related
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- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses the proving installation of multi-disc friction pair in a kind of aircraft devices, comprising: supporting seat [18] upper body center has coaxial input shaft [4] and output shaft [11]; Input shaft [4] is connected with the end cap [3] of housing left end with adjustment pad [2] by bearing; Output shaft [11] is connected with bearing door [12] by angular contact bearing [13]; Input shaft [4] is screwed by female spline [16] and bearing door [12] and links together; Be provided with one group ten springs [8] by equidistant circumference between compression plate [9] and spring compression dish [7], on the groove of female spline [16], cover has friction outer plate [15]; On the male splines of output shaft [11], cover has friction internal sheet [14], is coupled between output shaft [11] and female spline [16] by the moment of friction between friction internal sheet [14] and the friction pair that forms of outer plate [15].The invention solves measuring accuracy low, the problems such as fragile friction pair, achieve the beneficial effects such as measurement is accurate, convenient operation.
Description
Technical field
The present invention relates to the proving installation of aerospacecraft equipment, especially a kind of proving installation for multi-disc friction pair friction factor, break-in rate in testing flying vehicle friction energy-dissipating mechanism.
Background technology
Multi-disc friction pair is used for the friction energy-dissipating equipment of aircraft; its effect is power consumption, overload protection; because its performance and friction pair friction factor, break-in rate are closely related; therefore; to test performances such as its friction factor, break-in rates in a pre-installation; according to the pressure of actual test result adjustment energy consumption equipment, to guarantee the stability of output characteristics.
The measurement mechanism of multi-disc friction pair belongs to a kind of multi-plate friction clutch.
At present, the known power clutch for multi-disc friction pair measurement is made up of friction material, pressue device, housing etc., owing to adopting the bearing that rotates in a circumferential direction without radial location, the radial undulation caused because of load inertia and hold down gag is in addition larger, spring pressure is not easy to measure, measuring accuracy is low, and without radiating condition, easily damages friction pair; For clutch torque fluctuations during power clutch about 15%, if therefore these power clutches for measuring equipment time, mainly contain that inconvenience measured by spring force, outer load effect is large, precision is low, weak heat-dissipating, fragile friction pair, and the shortcoming such as clutch torque fluctuations is large.
Do not find explanation or the report of technology similar to the present invention at present, not yet collect similar data both at home and abroad yet.
Summary of the invention
Larger in order to solve above-mentioned prior art proving installation radial undulation, measuring accuracy is low, fragile friction pair, and clutch torque fluctuations is large etc. not enough, the object of the present invention is to provide the proving installation of multi-disc friction pair in a kind of aircraft devices, utilize the present invention, outer load effect can be reached little, measure accurately, convenient operation, good heat dissipation, the effect such as the clutch torque fluctuations of output is little.
In order to reach foregoing invention object, the present invention is to provide the proving installation of multi-disc friction pair in a kind of aircraft devices for technical scheme that its technical matters of solution adopts, and this device comprises:
Supporting seat, its bottom has been screwed dive key.The top of supporting seat is the housing that circumference has radiating groove, and casing center is provided with the coaxial input shaft in left and right and output shaft; Input shaft is connected with the end cap of housing left end with adjustment pad by bearing, by end cap positioning supports, realizes axial-rotation; Output shaft is connected with bearing door by angular contact bearing, is located and support rotation by bearing door.Input shaft is screwed by female spline and bearing door and links together, and is provided with pad, in order to fill gap between female spline and bearing door; Spring compression dish is by being positioned at the angular contact bearing location on input shaft; Be provided with pad between input shaft and angular contact bearing, the thickness of pad can adjust, for correction projectile spring force; Compression plate is installed on the opposite position of spring compression dish by clearance fit; Be provided with one group of ten spring by equidistant circumference between compression plate and spring compression dish, spring compression dish is pressed in this group spring on compression plate; The periphery of compression plate has lug, in order to indicate the compacted position of spring.Housing has the hole of measuring spring decrement, supporting seat has the scale of measuring spring decrement; The decrement accurately reading spring can be facilitated by the lug position on the measured hole on housing, the scale on supporting seat and compression plate periphery; Radial play between compression plate and spring compression dish coordinates location, ensures that ten springs are synchronized with the movement, thus, moving axially when locating and can facilitate spring pressure to adjust can be realized, and when moving, turned round by angular contact bearing prevention spring; On the groove of female spline, cover has friction outer plate; The maximum outside diameter place of output shaft is provided with male splines, and on the groove of male splines, cover has friction internal sheet, and friction internal sheet and friction outer plate are round-shaped, mutually alternately place by interior outer plate, and composition friction pair, is located by the baffle plate be installed on output shaft; Input shaft is connected by male splines and female spline, spring is after spring compression dish compresses, power is passed to and is arranged in the friction outer plate on female spline and the friction internal sheet on output shaft, resulting pressure acts on whole friction pair, now, spring force can be read by the scale on the corresponding supporting seat in the lug position outside compression plate.By the moment of friction coupling between friction internal sheet and the friction pair of friction outer plate composition between output shaft and female spline, when the load of output shaft exceedes some, the output shaft of this equipment stops the rotation, and input shaft continues to rotate, and just realizes the skidding between friction pair.When the friction pair consisted of friction internal sheet and friction outer plate skids, draw the slipping torque of this equipment; By the proportional relationship between above-mentioned slipping torque and multiple-piece friction factor, by simple division arithmetic, just calculate the friction factor of multi-disc friction pair.The spring force of above-mentioned friction pair, by regulating the thickness correction of pad, calculates spring pressure exactly by the scale be marked on supporting seat.
During test, input shaft is connected on drive motor, output shaft is connected on loader, read spring pressure F; Starter motor, is loaded by loader, until output shaft no longer rotates, now read the output torque of motor, this moment is slipping torque M, and the friction factor of the multi-disc friction pair now tested is M/ (F*C) (C is constant).
In aircraft devices of the present invention, the proving installation of multi-disc friction pair is owing to adopting technique scheme, and therefore, have a stable input, output torque critical value, when loading moment is greater than critical value, clutch coupling just starts clutch.
Can realize in the examination that multi-disc friction pair proving installation of the present invention is tested at space environmental simulation: rotating speed 6 ~ 3000rpm, driving torque≤5Nm; Rotating speed 6 ~ 15rpm, the torsion pass function of driving torque≤39Nm, when exceeding its respective impending motion moment, friction disc starts to skid, more operating mode is may be used for by changing different springs or adjusting spring force, play the effect of energy-dissipating clutch, the data fluctuations exporting clutch moment is less than 10%.Therefore, the beneficial effects such as the frictional behaviour of Measurement accuracy multi-disc friction pair, energy-dissipating clutch are achieved; Prove through using, the present invention can under the environment of vacuum ± 50 DEG C steady operation.Achieve outer load effect little, measure accurately, convenient operation, output the beneficial effects such as clutch torque fluctuations is little.
Accompanying drawing explanation
Fig. 1 is the outside drawing of multi-disc friction pair proving installation of the present invention;
Fig. 2 is the critical piece exploded view of multi-disc friction pair proving installation of the present invention;
Fig. 3 is the cut-open view of multi-disc friction pair proving installation of the present invention.
In figure: 1 is dive key; 2 is adjustment pad; 3 is end cap; 4 is input shaft; 5 is pad; 6 is angular contact bearing; 7 is spring compression dish; 8 is spring; 9 is compression plate; 10 is baffle plate; 11 is output shaft; 12 is bearing door; 13 is angular contact bearing; 14 is friction internal sheet; 15 is friction outer plate; 16 is female spline; 17 is pad; 18 is supporting seat.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described.
Fig. 1 is the outside drawing of multi-disc friction pair proving installation of the present invention; Fig. 2 is the critical piece exploded view of multi-disc friction pair proving installation of the present invention; Fig. 3 is the cut-open view of multi-disc friction pair proving installation of the present invention.As shown in the embodiment of Fig. 1 ~ 3, this device comprises:
Supporting seat 18, its bottom has been screwed dive key 1, mainly in order to axial translation during dismounting is convenient.The top of supporting seat 18 is the housing that circumference has radiating groove, and casing center is provided with the coaxial input shaft in left and right 4 and output shaft 11; Input shaft 4 is connected with the end cap 3 of housing left end with adjustment pad 2 by bearing, by end cap 3 positioning supports, realizes axial-rotation; Output shaft 11 is connected with bearing door 12 by angular contact bearing 13, is located and support rotation by bearing door 12.Input shaft 4 is screwed by female spline 16 and bearing door 12 and links together, and is provided with pad 17, in order to adjusting play between female spline 16 and bearing door 12; Spring compression dish 7 is located by the angular contact bearing 6 be positioned on input shaft 4; Be provided with pad 5 between input shaft 4 and angular contact bearing 6, the thickness of pad 5 can adjust, for correction projectile spring force; Compression plate 9 is installed on the opposite position of spring compression dish 7 by clearance fit; Be provided with one group of totally ten spring 8 by equidistant circumference between compression plate 9 and spring compression dish 7, spring compression dish 7 is pressed in this group spring on compression plate 9; The periphery of compression plate 9 has lug, in order to indicate the compacted position of spring.As shown in Figure 1, housing has the hole of measuring spring decrement, supporting seat 18 has the scale of measuring spring decrement; The decrement accurately reading spring can be facilitated by the lug position on the scale on the measured hole on housing, supporting seat 18 and compression plate 9 periphery; Radial play between compression plate 9 and spring compression dish 7 coordinates location, ensures that ten springs 8 are synchronized with the movement, thus, moving axially when locating and can facilitate spring pressure to adjust can be realized, and when moving, prevent spring 8 to be turned round by angular contact bearing 6; On the groove of female spline 16, cover has friction outer plate 15; The maximum outside diameter place of output shaft 11 is provided with male splines, and on the groove of male splines, cover has friction internal sheet 14, and friction internal sheet 14 and friction outer plate 15 are round-shaped, mutually alternately place by interior outer plate, and composition friction pair, is located by the baffle plate 10 be installed on output shaft 11; Input shaft 4 is connected by male splines and female spline 16, spring 8 is after spring compression dish 7 compresses, power is passed to and is arranged in the friction outer plate 15 on female spline 16 and the friction internal sheet 14 on output shaft 11, resulting pressure acts on whole friction pair, now, spring force can be read by the scale on the corresponding supporting seat 18 in the lug position outside compression plate 9.By the moment of friction coupling between friction internal sheet 14 and the friction pair of friction outer plate 15 composition between output shaft 11 and female spline 16, when the load of output shaft 11 exceedes some, the output shaft 11 of this equipment stops the rotation, and input shaft 4 continues to rotate, and just realizes the skidding between friction pair.When the friction pair consisted of friction internal sheet 14 and friction outer plate 15 skids, draw the slipping torque of this equipment; By the proportional relationship between above-mentioned slipping torque and multiple-piece friction factor, by simple division arithmetic, just calculate the friction factor of multi-disc friction pair.The spring force of above-mentioned friction pair, by regulating the thickness correction of pad 5, calculates spring pressure exactly by the scale be marked on supporting seat 18.
Below in conjunction with accompanying drawing, working condition of the present invention and course of action are described.
During test, input shaft 4 is connected on drive motor, output shaft 11 is connected on loader, read spring pressure F; Starter motor, is loaded by loader, until output shaft 11 no longer rotates, now read the output torque of motor, this moment is slipping torque M, and the friction factor of the multi-disc friction pair now tested is M/ (F*C) (C is constant).
Can be known by above-mentioned introduction, when output terminal does not apply loading moment, due to the rubbing action between friction disc, whole kinematic chain can get into smooth smoothly, when the spring 8 installed is little pressure, if the load >=5Nm applied, because between interior outside friction disc, friction force is not enough to overcome load, therefore the skidding that there will be between friction pair, namely multi-disc friction pair proving installation starts clutch.Otherwise, when filling the spring 8 of large pressure, as the load >=39Nm applied, there is friction slip.In above-mentioned two kinds of positive drive, input velocity range can at 0 ~ 3000rpm.
The present invention can also work like this: as in the occasion not allowing inverse transmission (output shaft inputs, and input shaft is fixed), can protect driving-chain.That is the driving-chain before input shaft does not allow to occur against the situation of transmission, and define input shaft by special device can not reverse transmission.At this moment when output shaft occurring the phenomenon of inverse transmission, its transmission energy consumes by the friction between interior outside friction disc, plays the effect of protection driving-chain.
As mentioned above, the present invention is by angular contact bearing 6 axial location spring compression dish 7, the clearance fit of spring compression dish 7 and compression plate 9 achieves the axial location of compression plate 9, ensures synchronism when 10 spring movement, is turned round by spring during bearing prevention motion; Spring compression dish 7 is pressed in one group of spring 8 on compression plate 9, and friction outer plate 15 is enclosed within female spline 16, and internal sheet 14 is enclosed within the male splines of output shaft, and internal sheet and outer plate are alternately put; Input shaft 4 is connected by male splines and female spline 16, and when the load of output shaft exceedes some, this equipment just realizes skidding.By slipping torque with the relation of multiple-piece friction factor, just accurately can draw the friction factor of multi-disc friction pair, and can dispel the heat by the radiating groove of housing and rule in time and accurately adjust spring pressure.
The present invention is by the work of Compress Spring, and in it, outside friction disc fits together, and device principal and subordinate part is in engagement state.Utilize the radial location and the bearing that rotates in a circumferential direction introduced, eliminate the output instability caused due to fraction jump when starting and skid.Accurately draw spring pressure by rule, when loading moment reaches certain numerical value, or when being greater than maximum output torque, this device starts clutch (skidding).In other words, the effect that friction pair is measured, can be accomplished again power consumption, protection driving-chain can be played.
Can realize in the examination that multi-disc friction pair proving installation of the present invention is tested at space environmental simulation: rotating speed 6 ~ 3000rpm, driving torque≤5Nm; Rotating speed 6 ~ 15rpm, the torsion pass function of driving torque≤39Nm, when exceeding its respective impending motion moment, friction disc starts to skid, more operating mode is may be used for by changing different springs or adjusting spring force, play the effect of energy-dissipating clutch, the data fluctuations exporting clutch moment is less than 10%.Therefore, the beneficial effects such as the frictional behaviour of Measurement accuracy multi-disc friction pair, energy-dissipating clutch are achieved; Prove through using, the present invention can Absorbable organic halogens work under the environment of vacuum ± 50 DEG C.
Although the present invention contacts a preferred embodiment of the present invention and is described, 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 (3)
1. the proving installation of multi-disc friction pair in an aircraft devices, it is characterized in that, this device comprises: supporting seat [18], dive key [1] has been screwed bottom it, its top is the housing that circumference has radiating groove, and casing center is provided with the coaxial input shaft in left and right [4] and output shaft [11]; Input shaft [4] is connected with the end cap [3] of housing left end with adjustment pad [2] by bearing; Output shaft [11] is connected with bearing door [12] by angular contact bearing [13]; Input shaft [4] is screwed by female spline [16] and bearing door [12] and links together, and arranges the second pad [17] between female spline [16] and bearing door [12]; Spring compression dish [7] is by being positioned at angular contact bearing [6] location on input shaft [4]; The first pad [5] is provided with between input shaft [4] and angular contact bearing [6]; Compression plate [9] is installed on the opposite position of spring compression dish [7] by clearance fit; Be provided with one group ten springs [8] by equidistant circumference between compression plate [9] and spring compression dish [7], spring compression dish [7] is pressed in this group spring on compression plate [9]; The periphery of compression plate [9] has lug; Housing has the hole of measuring spring decrement, supporting seat [18] has the scale of measuring spring decrement; On the groove of described female spline [16], cover has friction outer plate [15]; The maximum outside diameter place of output shaft [11] is provided with male splines, on the groove of male splines, cover has friction internal sheet [14], friction internal sheet [14] and friction outer plate [15] are for round-shaped, mutually alternately place by interior outer plate, composition friction pair, is located by the baffle plate [10] be installed on output shaft [11]; Input shaft [4] is connected by male splines and female spline [16]; Be coupled by the moment of friction between friction internal sheet [14] and friction outer plate [15] friction pair that forms between output shaft [11] and female spline [16].
2. the proving installation of multi-disc friction pair in aircraft devices according to claim 1, is characterized in that: the radial play between described compression plate [9] and spring compression dish [7] coordinates position assurance ten springs [8] to be synchronized with the movement.
3. the proving installation of multi-disc friction pair in aircraft devices according to claim 1, is characterized in that: the spring force of described friction pair is by the thickness correction of adjustment first pad [5]; The decrement of spring is read by the scale on the hole of measuring spring decrement on housing, the lug position of compression plate [9] and supporting seat [18].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710082956.0A CN104335715B (en) | 2007-11-15 | 2007-11-15 | The proving installation of multi-disc friction pair in aircraft devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710082956.0A CN104335715B (en) | 2007-11-15 | 2007-11-15 | The proving installation of multi-disc friction pair in aircraft devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104335715B true CN104335715B (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710082956.0A Expired - Fee Related CN104335715B (en) | 2007-11-15 | 2007-11-15 | The proving installation of multi-disc friction pair in aircraft devices |
Country Status (1)
| Country | Link |
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| CN (1) | CN104335715B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465225A (en) * | 2015-11-30 | 2016-04-06 | 上海宇航系统工程研究所 | Self-lock type engaging and disengaging device |
| CN108496524A (en) * | 2018-04-02 | 2018-09-07 | 张冠 | A method of low noise trimming is carried out to the vegetation on park lawn |
| CN108668607A (en) * | 2018-04-02 | 2018-10-19 | 张冠 | A kind of clutching device that control vehicle is advanced |
| CN113530994A (en) * | 2021-08-23 | 2021-10-22 | 厦门南超机械有限公司 | Friction seat type clutch |
-
2007
- 2007-11-15 CN CN200710082956.0A patent/CN104335715B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465225A (en) * | 2015-11-30 | 2016-04-06 | 上海宇航系统工程研究所 | Self-lock type engaging and disengaging device |
| CN105465225B (en) * | 2015-11-30 | 2017-09-12 | 上海宇航系统工程研究所 | A kind of self-locking clutch device |
| CN108496524A (en) * | 2018-04-02 | 2018-09-07 | 张冠 | A method of low noise trimming is carried out to the vegetation on park lawn |
| CN108668607A (en) * | 2018-04-02 | 2018-10-19 | 张冠 | A kind of clutching device that control vehicle is advanced |
| CN108496524B (en) * | 2018-04-02 | 2020-12-08 | 福建省富衢建筑工程有限公司 | Method for low-noise pruning of vegetation on park lawn |
| CN108668607B (en) * | 2018-04-02 | 2020-12-08 | 安徽骆氏电动车有限公司 | Clutch device for controlling vehicle to advance |
| CN113530994A (en) * | 2021-08-23 | 2021-10-22 | 厦门南超机械有限公司 | Friction seat type clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| CI01 | Correction of invention patent gazette |
Correction item: Patent agency|agent Correct: Shanghai space agency patent center 31107|Jin Jiashan Number: 05 Volume: 31 |
|
| CI03 | Correction of invention patent |
Correction item: Patent agency|agent Correct: Shanghai space agency patent center 31107|Jin Jiashan Number: 05 Page: The title page Volume: 31 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENT AGENCY; AGENT; FROM: NONE TO: SHANGHAI ACADEMY OF AEROSPACE INDUSTRY PATENT CENTER 31107; JIN JIASHAN |
|
| RECT | Rectification | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20171115 |