CN105909697A - Non-frictional brake - Google Patents
Non-frictional brake Download PDFInfo
- Publication number
- CN105909697A CN105909697A CN201610452394.3A CN201610452394A CN105909697A CN 105909697 A CN105909697 A CN 105909697A CN 201610452394 A CN201610452394 A CN 201610452394A CN 105909697 A CN105909697 A CN 105909697A
- Authority
- CN
- China
- Prior art keywords
- brake
- displacement pump
- friction
- pump
- resistance
- 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.)
- Pending
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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
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/06—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a pump circulating fluid, braking being effected by throttling of the circulation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A non-frictional brake is mainly based on the working principle of a displacement pump instead of a brake means based on friction, the displacement pump is utilized reversely, in other words, resistance becoming larger gradually is generated for a rotating shaft by adjusting the outlet flow of the displacement pump, the generated resistance is the minimum when the outlet flow is maximum, and the generated resistance is the maximum when the outlet flow is zero. By means of the non-frictional brake, the problem that a conventional brake with friction force as brake force is abraded under long-time friction or a friction plate material fails due to generation of local high temperature is solved, and the non-frictional brake is particularly suitable for the long-term frequent braking process and the long-operation-period process in which quick-wear parts cannot be frequently replaced; and the non-frictional brake can be applied to the field of automobile retarders, tyre brakes of aircraft landing gears, automobile limited slip differentials and the like, and is also suitable for being applied to the occasions where braking force needs to be provided frequently and variable braking force needs to be provided.
Description
Technical field
The present invention relates to a kind of braking equipment, the most not non-friction brake with friction as brake tool, this brake is particularly well-suited to
The most regular braking and need long-term operation and can not often change the process of consumable accessory, may be used for that automobile is slow, undercarriage tire
The fields such as braking, automobile limited-slip differential, also being adapted for other needs often braking and provides the place application of variable braking force.
Background technology
The brake of prior art, based on frictional damping, in its work process, by compressing the object of two relative motioies to produce enough
Big frictional force, makes the speed of related movement of the object of relative motion reduce or keep geo-stationary, this mode of braking with frictional force as brake force
It is used widely in various fields, but, there is friction just to have abrasion, have friction will produce heat, continuous print frictional damping, friction can be made
The heat produced cannot be taken away in time, thus produces localized hyperthermia, causes friction plate material to lose efficacy, ultimately results in brake failure.
Non-friction brake, is to utilize other power in addition to frictional force, the object of two relative motioies is produced inhibition indirectly so that it is
Produce negative acceleration, thus be gradually lowered speed of related movement, until it reaches a certain minimum speed or geo-stationary, reach to brake the mesh of reduction of speed
's.
Along with the development of auto industry, automobile retarder increasingly comes into one's own, primarily to the automobile brake that solution long and steep downgrade brings is asked
Topic, if automobile is fitted without retarding device, during long and steep downgrade, or uses stick shift engine braking to carry out regulation speed, or with stopping
Car carrys out regulation speed, it is true that use brake regulation speed, the situation of brake failure and car crash often occurs, is mounted with that automobile is slow
Device, such issues that just can be readily solved.
Another promising application of non-model control braking, it is simply that be applied on the wheel of military secret undercarriage, traditional friction stopping device, because flying
Machine speed landing, makes to be chronically between friction plate and frictional disk the Frotteurism of relative motion, produces amount of heat and cannot scatter and disappear, and makes friction plate high
Temperature lost efficacy, and uses resistant to elevated temperatures brake material, can not solve this problem well, according to non-model control brake unit, is continuously carrying
For, in the case of brake force, localized contact high temperature also will not be produced, thus is greatly prolonged the service life of brake.
Non-model control braking can also be applied in limited-slip differential field, makes differential mechanism can only produce slip relatively in the velocity interval that certain is narrower,
If beyond certain limit, just produce bigger active force, made antero posterior axis or the equidirectional rotation of left and right wheels, played the effect that limit is sliding.
Summary of the invention
It is an object of the invention to find a kind of can the brake of the work of high capacity for a long time, this brake will not be damaged because of working long hours
Bad, it is also possible to according to technique needs, provide the variable braking force differed in size, this brake to be especially suitable for continuous continual system according to certain rules
Dynamic process.
The non-friction brake of the present invention mainly utilizes the operation principle of displacement pump, and displacement pump is reversely used, i.e. by volume adjusted pump outlet flow
The size of amount, thus rotary shaft is produced ascending resistance, when rate of discharge maximum, the resistance of generation is minimum, when rate of discharge is zero,
The resistance produced is maximum.
The non-friction brake of the present invention can utilize any type of displacement pump principle, including but not limited to gear pump, plunger displacement pump, spiral shell
Bar pump etc..
Beneficial effect: use the non-friction brake of foregoing invention, it will
1., long-time nothing abrasion is made to provide brake force to be possibly realized；
2., realize being similar to the brake component of ABS (brake anti-blocking) function and the anti-lock function of tumbler；
3., the constant resisting force being applied on tumbler can be made or by given rule change, as constant by the way of adjusting rate of discharge
Brake force or the brake force persistently changed by certain rule.
Accompanying drawing explanation
Fig. 1 is the brakes schematic diagram of non-friction brake of the present invention composition；
Fig. 2 is a kind of way of realization of non-friction brake of the present invention, internal tooth engagement type non-friction brake outside drawing；
Fig. 3 is a kind of way of realization of non-friction brake of the present invention, internal tooth engagement type non-friction brake longitudinal sectional view；
Fig. 4 is a kind of way of realization of non-friction brake of the present invention, internal tooth engagement type non-friction brake transverse sectional view.
Detailed description of the invention
The friction braking system that Fig. 1 is made up of non-friction brake, is mainly formed by with lower part: hydraulic oil container 1, hydraulic oil inlet pipeline
2, hydraulic oil outlet pipeline 5, tire or other rotary part 3, electromagnetic proportional valve and controller 6, non-friction brake 7.
In Fig. 1 when tire or other rotary part 3 rotate, the gear extrusion hydraulic oil within non-friction brake 7 by entrance to output flow,
When electromagnetic proportional valve and controller 6 standard-sized sheet, the most do not produce brake force, when electromagnetic proportional valve and controller 6 reduce aperture on request, make stream
Through non-friction brake 7 hydraulic oil flow reduce, pressure raise so that the rotary speed of non-friction brake 7 is limited, to tire or its
Its rotary part 3 produces resistance, produces braking effect.
Fig. 3 is a kind of way of realization of non-friction brake of the present invention, and internal tooth engagement type non-friction brake longitudinal sectional view, mainly by with bottom
Be grouped into: rotation case 1, end cap 2, floating plate 3, fixing axle 4, oil-in 5, thrust bearing 6, ring gear 7, external gear 8, sealing ring 9,
Pivot pin 10, oil-out 11, oil guiding hole 12, oil guiding hole 13, cavity 14 etc..
This non-friction brake is divided into two parts, standing part and rotating part.
Rotation case 1 is affixed with the rotatable parts in non-model control brakes, such as the tire in Fig. 1 or other rotatable parts 3, end cap 2 with turn
Dynamic shell 1 is fastened as a whole with bolt, sealing ring 9, thrust bearing 6 are collectively forming outside rotation airtight cavity 14, and this is the braking of this non-model control
The rotating part of device；
Fixing axle 4 forms standing part with floating plate 3 by pivot pin 10, and it is provided with external gear 8；External gear 8 is meshed with ring gear 7.
Fig. 4 is a kind of way of realization of non-friction brake of the present invention, internal tooth engagement type non-friction brake transverse sectional view, corresponding with Fig. 3,
Rotation case 1, ring gear 7, external gear 8, fixing axle 4, oil guiding hole 12.
Fixing axle 4 in Fig. 3 is fixture, firm with other external equipment together with, fixing axle 4 has oil-in 5 and oil-out 11,
Oil-in 5 and oil-out 11 form the runner of hydraulic oil by oil guiding hole 12 and oil guiding hole 13 with cavity respectively.
When rotation case 1 rotates, ring gear 7 drives the external gear 8 being engaged with to rotate, and the hydraulic oil in extrusion chamber makes hydraulic oil edge
The direction flowing of oil-in 5 → oil guiding hole, 13 → cavity, 14 → oil guiding hole, 12 → oil-out 10.
When braking, electromagnetic proportional valve 6 reduces aperture by instruction, limits flow, causes hydraulic fluid flow rate to reduce, cavity 14 pressure
Raise, ring gear 7 and external gear 8 are produced retardation, thus rotary part is produced brake force.
Claims (4)
1. a non-friction brake, it is characterised in that mainly utilize the operation principle of displacement pump, displacement pump is reversely used, i.e. by regulation
The size of displacement pump rate of discharge, thus rotary shaft is produced ascending resistance, when rate of discharge maximum, the resistance of generation is minimum, when going out
When mouth flow is zero, the resistance of generation is maximum.
2. displacement pump as claimed in claim 1, it is characterised in that be the pump utilizing the change of pumping cylinder internal volume to carry out pumped (conveying) medium, including past
Multiple pump and impeller pump, include but not limited to gear pump, plunger displacement pump, screw pump etc..
3. displacement pump outlet as claimed in claim 1 can separately connect container, it is also possible to not connecing container, outlet is directly connected with entrance.
4. medium as claimed in claim 2, can be any form, include but not limited to hydraulic oil, grease etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452394.3A CN105909697A (en) | 2016-06-16 | 2016-06-16 | Non-frictional brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452394.3A CN105909697A (en) | 2016-06-16 | 2016-06-16 | Non-frictional brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105909697A true CN105909697A (en) | 2016-08-31 |
Family
ID=56758224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610452394.3A Pending CN105909697A (en) | 2016-06-16 | 2016-06-16 | Non-frictional brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105909697A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021174496A1 (en) * | 2020-03-02 | 2021-09-10 | 任峰 | Magnetorheological fluid retarder and control method therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB768791A (en) * | 1955-04-20 | 1957-02-20 | Robert Gallay | Fluid-pressure braking device for motor-vehicles |
| US5558187A (en) * | 1995-06-07 | 1996-09-24 | Aberle; David H. | Brake apparatus for a rotating shaft |
| CN101061327A (en) * | 2004-09-01 | 2007-10-24 | 安全降落技术有限公司 | Flow controller for closed fluid circuit system |
| CN101842276A (en) * | 2007-09-04 | 2010-09-22 | 技术源于思维有限公司 | Hydrostatic braking system |
| CN102281923A (en) * | 2008-09-19 | 2011-12-14 | 安全降落技术有限公司 | fall protection system |
-
2016
- 2016-06-16 CN CN201610452394.3A patent/CN105909697A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB768791A (en) * | 1955-04-20 | 1957-02-20 | Robert Gallay | Fluid-pressure braking device for motor-vehicles |
| US5558187A (en) * | 1995-06-07 | 1996-09-24 | Aberle; David H. | Brake apparatus for a rotating shaft |
| CN101061327A (en) * | 2004-09-01 | 2007-10-24 | 安全降落技术有限公司 | Flow controller for closed fluid circuit system |
| CN101842276A (en) * | 2007-09-04 | 2010-09-22 | 技术源于思维有限公司 | Hydrostatic braking system |
| CN102281923A (en) * | 2008-09-19 | 2011-12-14 | 安全降落技术有限公司 | fall protection system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021174496A1 (en) * | 2020-03-02 | 2021-09-10 | 任峰 | Magnetorheological fluid retarder and control method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160831 |
|
| WD01 | Invention patent application deemed withdrawn after publication |