CN106438781A - Air brake device - Google Patents
Air brake device Download PDFInfo
- Publication number
- CN106438781A CN106438781A CN201611104933.0A CN201611104933A CN106438781A CN 106438781 A CN106438781 A CN 106438781A CN 201611104933 A CN201611104933 A CN 201611104933A CN 106438781 A CN106438781 A CN 106438781A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston
- little
- brake
- moving piston
- 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.)
- Granted
Links
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
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an air brake device which comprises a large cylinder component and a large cylinder component, wherein the small cylinder component comprises a small cylinder and a moving piston; the large cylinder component comprises a large cylinder and a brake piston; the small cylinder is in sealed communication with the large cylinder; a hole matched with the moving piston is formed in the rear end of the brake piston; a limiting mechanism for preventing the moving piston from further moving relative to the brake piston is arranged on the hole wall in the middle of the hole, so that the moving piston can be driven by the brake piston to move in the large cylinder. The air brake device is simple in air brake system, and the test equipment space can be also greatly reduced. As compressed air is adopted as brake power, the testing cost can be lowered.
Description
Technical field
The present invention relates to a kind of gas brake unit, it is mainly used in gas ejection or the braking of emission test device.
Background technology
Braking is most commonly used a kind of ways of deceleration in daily life, and the braking on ordinary meaning is all frictional damping
, frictional damping is to make moving object pass through the rubbing action between brake friction pair, and the kinetic energy of moving object is converted into heat energy
And distribute, so that a kind of mode of braking of moving object stop motion, for example, step on formula braking, drum brake, disc type system
Dynamic, wherein step on formula braking and be mainly used in way-train and lorry with drum brake, disc type brake is then widely used in arranging at a high speed
Car.In addition also have dynamic braking, mainly have resistive braking, hydraulic braking and regenerative braking etc., above-mentioned frictional damping mode exists
Braking distance is long, and dynamic braking mode can not directly bear the features such as brake at a high speed and make at a high speed it is impossible to meet catapult-launching gear short distance
Dynamic requirement, the gas mode of braking of present invention design utilizes movement parts Fast Compression air, forms gases at high pressure and realizes energy
The mode of braking of mode short distance fast transition, realizes the short distance to gas ejection test device high-speed motion part and brakes at a high speed.
Content of the invention
Present invention solves the technical problem that being：There is provided a kind of economic, efficient, gas brake unit of short distance, for gas
Body ejection or the braking of emission test device.
The gas brake unit of the present invention includes little cylinder assembly and big cylinder assembly, and described little cylinder assembly includes stingy
Cylinder and moving piston, described big cylinder assembly includes big cylinder and brake piston, and described little cylinder is with described big cylinder seal even
Logical, described brake piston rear end offers the hole with moving piston cooperation, and arranges restricted institute on the hole wall in the middle part of perforate
State moving piston further with respect to the position-limit mechanism of brake piston motion, thus described brake piston can be by described motion work
Plug drives and moves in described big cylinder.
It is arranged with little drag ring on the periphery wall of preferably described moving piston, offer aperture in moving piston front end, should
Aperture extends to the position being provided with described little drag ring, and the compressed gas in described little cylinder can be by aperture by little friction
Ring overlays on the inwall of described little cylinder, realizes frictional damping, described brake piston is provided with the aperture of same structure, and joins
It is equipped with the big drag ring equally with frictional damping function.
Preferably described big cylinder rear portion is provided with pressure gauge and relief valve.
Cushion pad and blind plate sealing are passed through in the rear end of preferably described big cylinder.
Preferably it is internally provided with bumper in described big cylinder rear end, using hold-down ring, described bumper is pressed on air
On the aft bulkhead of cylinder, described bumper and described hold-down ring all there is the hole that described moving piston can be made to pass through.
Preferably described big cylinder segmentation at described bumper, is provided with cylinder part and another part of described bumper
Cylinder body connected by flange seal.
The present invention compared with prior art has the beneficial effect that：
(1) present invention adopts compressed air as brake power, reduces the cost of test.
(2) the gas brakes that the present invention adopts is simple, is also declined to a great extent in testing equipment space.
Brief description
Accompanying drawing 1 is the system theory of constitution figure of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the technical scheme in present example is described in detail.
As shown in figure 1, gas brake unit of the present invention is by moving piston 1, little drag ring 2, little cylinder 3, bumper 4, pressure
Tight ring 5, bolt 6, position-limit mechanism 7, brake piston 8, mounting flange 9, big drag ring 10, big cylinder 11, pressure gauge 12, relief valve
13rd, the composition such as cushion pad 14, blind plate 15.Moving piston 1 high-speed motion in little cylinder 3 is little equipped with annular in the middle of moving piston 1
Drag ring 2, moving piston 1 front end has aperture, and aperture extends to little drag ring 2.Little cylinder 3 is connected with big cylinder 11, greatly
Bumper 4, big cylinder 11 segmentation at bumper 4 are installed in cylinder 11 rear end, are connected by mounting flange 9, bumper 4 and compression
Ring 5 is connected by bolt 6, and brake piston 8 is arranged in big cylinder 11, and brake piston 8 rear end has and moving piston 1 cooperation
Hole, and arrange position-limit mechanism 7 in tapping, brake piston 8 front end has aperture, and aperture extends to big drag ring 10, big cylinder
11 rear portions are provided with pressure gauge 12 and relief valve 13, and big cylinder 11 front end is provided with cushion pad 14, install blind plate before cushion pad 14
15, gas in big cylinder 11 is sealed.Moving piston 1 in little cylinder 3 to big cylinder 11 direction high-speed motion, with fortune
Piston 1 and the reduction of brake piston 8 spacing, the gas between moving piston 1 and brake piston 8 is compressed, and is compressed
Gas enters the aperture of moving piston 1 front end, compressed air and then the little drag ring 2 of compression, is allowed to deformation closer in little cylinder 3
Wall, the frictional force between moving piston 1 and little cylinder 3 increases, and realizes the first time braking of moving piston 1.Moving piston 1 continues
Continue and move to brake piston 8, and then enter limited after brake piston 8 rear end is contacted with position-limit mechanism 7, so far, moving piston 1
Be integrated with brake piston 8, and travel forward along big cylinder 11 together, moving piston 1 and brake piston 8 and cushion pad 14 it
Between gas compressed, and gradually form gases at high pressure, compressed air and then compress big drag ring 10, be allowed to deformation closer to big
Cylinder 11 internal face, the frictional force between brake piston 8 and big cylinder 11 increases, and realizes second braking of brake piston 8.With
The volume between brake piston 8 and cushion pad 14 reduces, and moving piston 1 is gradated as motion with the kinetic energy of brake piston 8
The potential energy of the gas between piston 1 and brake piston 8 and cushion pad 14 and interior energy, until moving piston 1 and brake piston 8 stop
And triggering relief valve 13, after relief valve 13 is opened, cylinder 11 compressed air greatly is released, and completes immobilization test.
Claims (6)
1. a kind of gas brake unit it is characterised in that：Including little cylinder assembly and big cylinder assembly, described little cylinder assembly bag
Include little cylinder and moving piston, described big cylinder assembly includes big cylinder and brake piston, described little cylinder and described big cylinder
Sealing connection, described brake piston rear end offers the hole with moving piston cooperation, and is provided with the hole wall in the middle part of perforate
Limit described moving piston further with respect to the position-limit mechanism of brake piston motion, thus described brake piston can be described
Moving piston drives and moves in described big cylinder.
2. gas brake unit according to claim 1 it is characterised in that：It is arranged with the periphery wall of described moving piston
Little drag ring, offers aperture in moving piston front end, and this aperture extends to the position being provided with described little drag ring, described little
Compressed gas in cylinder can be overlayed little drag ring on the inwall of described little cylinder by aperture, realizes frictional damping,
Described brake piston is provided with the aperture of same structure, and is configured with the big drag ring equally with frictional damping function.
3. gas brake unit according to claim 1 it is characterised in that：Described big cylinder rear portion be provided with pressure gauge and
Relief valve.
4. gas brake unit according to claim 1 it is characterised in that：The rear end of described big cylinder pass through cushion pad and
Blind plate sealing.
5. gas brake unit according to claim 1 it is characterised in that：It is internally provided with anti-in described big cylinder rear end
Hit pad, using hold-down ring, described bumper is pressed on the aft bulkhead of big cylinder, on described bumper and described hold-down ring
All there is the hole that described moving piston can be made to pass through.
6. gas brake unit according to claim 5 it is characterised in that：Described big cylinder is punished in described bumper
Section, the cylinder body of the cylinder part and another part that are provided with described bumper is connected by flange seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611104933.0A CN106438781B (en) | 2016-12-05 | 2016-12-05 | Gas brake apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611104933.0A CN106438781B (en) | 2016-12-05 | 2016-12-05 | Gas brake apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438781A true CN106438781A (en) | 2017-02-22 |
| CN106438781B CN106438781B (en) | 2019-03-15 |
Family
ID=58222749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611104933.0A Active CN106438781B (en) | 2016-12-05 | 2016-12-05 | Gas brake apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438781B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004060862A (en) * | 2002-07-31 | 2004-02-26 | Nabco Ltd | Spring brake cylinder and brake caliper device equipped with the same |
| CN103062254A (en) * | 2011-10-20 | 2013-04-24 | 北京谊安医疗***股份有限公司 | Pneumatic braking mechanism |
| CN103821846A (en) * | 2014-03-04 | 2014-05-28 | 北京航空航天大学 | Small aircraft braking system |
| CN206468721U (en) * | 2016-12-05 | 2017-09-05 | 中国航天空气动力技术研究院 | Gas brake apparatus |
-
2016
- 2016-12-05 CN CN201611104933.0A patent/CN106438781B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004060862A (en) * | 2002-07-31 | 2004-02-26 | Nabco Ltd | Spring brake cylinder and brake caliper device equipped with the same |
| CN103062254A (en) * | 2011-10-20 | 2013-04-24 | 北京谊安医疗***股份有限公司 | Pneumatic braking mechanism |
| CN103821846A (en) * | 2014-03-04 | 2014-05-28 | 北京航空航天大学 | Small aircraft braking system |
| CN206468721U (en) * | 2016-12-05 | 2017-09-05 | 中国航天空气动力技术研究院 | Gas brake apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438781B (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106402210B (en) | A kind of brake caliper assy and automobile | |
| CN106812838A (en) | Parking type caliper | |
| CN101943232B (en) | Caliper disc brake for rear axle of electric drive car for mine | |
| CN110550063B (en) | Multistage buffering energy-absorbing device | |
| CN206468721U (en) | Gas brake apparatus | |
| CN202451495U (en) | Pneumatic cylinder applied to automobile crash test | |
| CN106438781A (en) | Air brake device | |
| CN207660658U (en) | Camshaft and engine suitable for engine braking | |
| CN104859619A (en) | Shock absorbing and braking system and method of automobile | |
| KR20130102924A (en) | Brake for vehicle | |
| CN205192760U (en) | Bump test auxiliary brake device | |
| CN101992739B (en) | Gas drive friction self-locking collision energy-absorbing device | |
| CN207916865U (en) | A kind of railway locomotive, vehicle traction buffer unit | |
| CN203496881U (en) | Vacuum booster assembly with BA valve | |
| CN207809409U (en) | A kind of novel elastic clay core for drawing buffer unit | |
| KR102056581B1 (en) | Brake for vehicle | |
| CN103925318B (en) | Normally closed parking brake | |
| CN211820472U (en) | Transfer case with hydraulic spring brake | |
| CN2745817Y (en) | Quick releasing valve of automobile brake air chamber | |
| CN206513742U (en) | A kind of trackless equipment brakes | |
| CN214248092U (en) | Pneumatic brake | |
| CN203601254U (en) | Automobile vacuum booster | |
| CN217814681U (en) | High-sealing brake piston assembly | |
| CN205047701U (en) | Vehicle anticollision buffer protection device with automatic brake function | |
| CN219432318U (en) | Normally open brake for mining transportation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |