CN105545993A - Spring braking device with breathing structure - Google Patents
Spring braking device with breathing structure Download PDFInfo
- Publication number
- CN105545993A CN105545993A CN201610035244.2A CN201610035244A CN105545993A CN 105545993 A CN105545993 A CN 105545993A CN 201610035244 A CN201610035244 A CN 201610035244A CN 105545993 A CN105545993 A CN 105545993A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- spring
- breathing structure
- brake chamber
- edge face
- 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
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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
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/08—Fluid pressure acting on a membrane-type actuator, e.g. for gas pressure
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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
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/12—Membrane or diaphragm types
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a spring braking device with a breathing structure. The spring braking device comprises a braking air chamber, a breathing opening communicated with the outside is formed in the braking air chamber, and a breathing structure used for keeping air pressure in the braking air chamber and outside air pressure to be balanced is arranged at the position, where the breathing opening is located, of the exterior of the braking air chamber; the breathing structure comprises an air exhaust device for exhausting air in the braking air chamber to outside; an air inlet device for feeding outside air to the braking air chamber is arranged on the air exhaust device; the service life of the braking air chamber and a travelling cavity is prolonged; and meanwhile the rusting probability of the braking device is decreased.
Description
[technical field]
The present invention relates to a kind of spring catcher with breathing structure.
[background technique]
Existing service brake mechanism, especially spring check mechanism, inside comprises a brake chamber, brake chamber is provided with pneumostome and directly communicates with ambient atmosphere, brake chamber operationally, when the air pressure of brake chamber raises or reduces, being vented and air inlet by pneumostome realization of brake chamber, because pneumostome of the prior art directly communicates with air, the rubbish in air and water is easily caused to flow into the inside of brake chamber, moisture content is emptying in time not, the early failue of the diaphragm in arrestment mechanism can be caused, after moisture content enters brake chamber in addition, the spring in brake chamber can be caused, the metal partss such as pad get rusty, hair fastener.
[summary of the invention]
Problem to be solved by this invention is just to provide a kind of spring catcher with breathing structure, extends the working life in brake chamber and driving chamber, also reduces the probability that braking device gets rusty simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of spring catcher with breathing structure, spring catcher comprises brake chamber, brake chamber is provided with the pneumostome communicated with the external world, the outside breathing structure be provided with at pneumostome place for keeping brake chamber internal air pressure and ambient pressure to balance each other of described brake chamber, described breathing structure comprises the venting gas appliance of the gas of brake chamber toward extraneous excretion, and described venting gas appliance is provided with the air inlet system of being supplied gas toward brake chamber by ambient atmos.
Preferably, described breathing structure comprises exhaust joint, and exhaust joint comprises two sections of diameters and to differ inner and outer tubes, and the diameter of interior pipe is less than outer tube diameter, and interior pipe is towards described pneumostome.
Preferably, described venting gas appliance comprises outlet valve, and outlet valve is located in described outer tube, and the interior edge face of outlet valve and the end face of interior pipe offset, and the exterior edge face of outlet valve are compressed with the first Returnning spring, are provided with exhaust port between the interior edge face of outlet valve and exterior edge face.
Preferably, the inwall of described outer tube is provided with snap ring, and described first Returnning spring is located between snap ring and the exterior edge face of outlet valve.
Preferably, described first Returnning spring is volute spring, and the larger end of diameter is towards the exterior edge face of outer tube.
Preferably, described outlet valve is provided with center hole, and described air inlet system comprises air inlet valve lever, and air inlet valve lever is through described center hole, and the inner of air inlet valve lever is provided with the limited ring offseted with the interior edge face of outlet valve, and the outer end of air inlet valve lever is compressed with the second Returnning spring.
Preferably, the outer end of air inlet valve lever is provided with annular convex ring, is provided with the second Returnning spring between annular convex ring and the exterior edge face of outlet valve.
Preferably, the exterior edge face of described air inlet valve lever is provided with the central blind hole of indent.
Preferably, described air inlet valve lever is through with inlet hole in radial direction, and inlet hole communicates with described central blind hole.
Preferably, via hole is through with between the inwall of described outer tube and outer wall.
Spring brake cylinder of the present invention, having installed one in the outside of brake chamber can the breathing structure of air inlet and exhaust, inside comprises a venting gas appliance separately for being discharged outward by the gas in brake chamber, with one separately for by inhalant for ambient atmos air inlet system, when the air pressure in brake chamber raises, gas in brake chamber is by venting gas appliance exhaust pressure relief, and during exhaust, air inlet system cuts out, when the air pressure of brake chamber reduces, air inlet system is opened, and ambient air enters brake chamber by air inlet system, and during air inlet, venting gas appliance cuts out, when whole braking device does not work, the air pressure of brake chamber and ambient pressure keep balancing, breathing equipment is whole is in shutoff device, now ambient air cannot enter in brake chamber, namely when braking device does not work, the moisture in the available protecting external world and dust enter in brake chamber, even if when braking device works, the independent air inlet system of breathing structure and independent venting gas appliance are relative to traditional structure directly communicated with the external world, also entering of moisture and dust can effectively be reduced, thus extend the working life of brake chamber, also reduce the probability that braking device gets rusty simultaneously.
In addition, the breathing structure in the present invention is mounted in brake chamber outside, installation for convenience detach.
These features of the present invention and advantage will embodiment below, exposure detailed in accompanying drawing.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of spring catcher of the prior art;
Fig. 2 is the structural representation of spring catcher of the present invention;
Fig. 3 is the enlarged diagram of breathing structure in spring catcher of the present invention.
[embodiment]
The technological scheme of accompanying drawing to the embodiment of the present invention below in conjunction with the embodiment of the present invention is explained and illustrated, but following embodiment is only the preferred embodiments of the present invention, and not all.Based on the embodiment in mode of execution, those skilled in the art under the prerequisite not making creative work obtain other embodiments, all belong to protection scope of the present invention.
With reference to Fig. 1, spring catcher of the prior art, comprise driving chamber 1 and brake chamber 2, diaphragm 10 is had between driving chamber 1 and brake chamber 2, driving chamber 1 is provided with driving chamber suction port, piston rod 22 is provided with in brake chamber 2, Compress Spring 23, brake chamber 2 is provided with the pneumostome 21 communicated with the external world, operationally, when the air pressure of brake chamber 2 raises or reduces, the pneumostome 21 that passes through of brake chamber 2 realizes exhaust and air inlet to brake chamber 2, pneumostome 21 of the prior art is the through holes be arranged on the cylinder body of brake chamber, directly communicates with air.
The present embodiment: on the basis of the spring catcher of prior art, the breathing structure 3 for keeping brake chamber 2 internal air pressure and ambient pressure to balance each other additionally has been installed additional at pneumostome 21 place of brake chamber 2 outside, described breathing structure 3 comprises the venting gas appliance of the gas of brake chamber 2 toward extraneous excretion, described venting gas appliance is provided with the air inlet system of being supplied gas toward brake chamber 2 by ambient atmos, when the air pressure in brake chamber 2 raises, gas in brake chamber 2 is by venting gas appliance exhaust pressure relief, during exhaust, air inlet system cuts out, when the air pressure of brake chamber 2 reduces, air inlet system is opened, and ambient air enters brake chamber 2 by air inlet system, and during air inlet, venting gas appliance cuts out, when the air pressure of brake chamber 2 and ambient pressure keep balancing, breathing equipment is whole is in shutoff device, now ambient air cannot enter in brake chamber 2, namely when braking device does not work, the moisture in the available protecting external world and dust enter in brake chamber 2, even if when braking device works, the independent air inlet system of breathing structure 3 and independent venting gas appliance are relative to traditional structure directly communicated with the external world, also entering of moisture and dust can effectively be reduced, thus extend the working life of brake chamber 2, also reduce the probability that braking device gets rusty simultaneously, in addition, it is outside that breathing structure 3 in the present embodiment is mounted in brake chamber 2, installation for convenience detach.
Breathing structure 3 in the present embodiment is concrete as shown in Figure 3, described breathing structure 3 comprises exhaust joint, for convenience of hereafter describing, defining in the present embodiment in exhaust joint towards pneumostome 21 side is inner side, be outside away from pneumostome 21 direction, exhaust joint comprises the interior pipe 31 and outer tube 32 that two sections of diameters differ, the diameter of interior pipe 31 is less than outer tube 32 diameter, interior pipe 31 is towards described pneumostome 21, in the present embodiment, the outer wall of cylinder block of brake chamber 2 is fixed with installation sleeve 24, the outer wall of described interior pipe 31 with stretch in the inner chamber of installation sleeve 24, and be filled between the outer wall of interior pipe 31 and the inwall of outer tube 32 with sealing material and realize sealing, described venting gas appliance comprises outlet valve 34, outlet valve 34 is located in described outer tube 32, the interior edge face of outlet valve 34 and the exterior edge face of interior pipe 31 offset, when not being vented, the interior edge face of outlet valve 34 and the exterior edge face of interior pipe 31 offset and seal, gas can not enter outer tube 32 from interior pipe 31, the exterior edge face of outlet valve 34 is compressed with the first Returnning spring 35, conveniently locate the first Returnning spring 35, the inwall of described outer tube 32 is provided with circular groove, circular groove is embedded with snap ring 36, described first Returnning spring 35 is located between the exterior edge face of snap ring 36 and outlet valve 34, exhaust port 341 is provided with between the interior edge face of outlet valve 34 and exterior edge face, during exhaust, air pressure in brake chamber 2 uprises, the compressive force promotion outlet valve 34 that air pressure overcomes the first Returnning spring 35 moves side outward, the interior edge face of outlet valve 34 is separated with the exterior edge face of interior pipe 31, gas is now discharged to outside outer tube 32 from exhaust port 341, when the air pressure in brake chamber 2 and ambient pressure balance, outlet valve 34 is again closed under the elastic force effect of the first Returnning spring 35.As preferably, described first Returnning spring 35 is volute spring, the larger end of diameter is towards the exterior edge face of outer tube 32, the feature of volute spring is that just to have started elastic force little, when be compressed to a certain amount of after compressive force increment obvious, use effect to be in the present embodiment that sensitivity is higher, as long as there is minute-pressure just can open, and open after can not open excessive, effectively prevent the large particle objects such as dust from entering.
Air inlet system in the present embodiment is located to be set directly on venting gas appliance, as shown in Figure 3, the present embodiment is provided with center hole on outlet valve 34, described air inlet system comprises air inlet valve lever 37, air inlet valve lever 37 is through described center hole, the inner of air inlet valve lever 37 is provided with the limited ring 371 offseted with the interior edge face of outlet valve 34, the diameter of limited ring 371 is greater than the diameter of center hole, under non-air-suction state, limited ring 371 is close to sealing with the interior edge face of outlet valve 34, the outer end of air inlet valve lever 37 is compressed with the second Returnning spring 38, conveniently location and installation second Returnning spring 38, the outer end of air inlet valve lever 37 is provided with the radial annular convex ring toward extension, second Returnning spring 38 is located between the exterior edge face of annular convex ring and outlet valve 34, when being vented, air inlet valve lever 37 follows outlet valve 34 entirety to move side outward, and the limited ring 371 of air inlet valve lever 37 and outlet valve 34 remain and are close to sealing, when the air pressure of brake chamber 2 is lower than ambient pressure, the compressive force that ambient pressure can overcome the second Returnning spring 38 promotes air inlet valve lever 37 toward medial movement, now limited ring 371 is separated with outlet valve 34, extraneous air can enter in brake chamber 2 from the space between limited ring 371 and outlet valve 34, when the air pressure of brake chamber 2 and ambient pressure balance, air inlet valve lever 37 again cuts out under the elastic force of the second Returnning spring 38, , in addition, in order to increase intake efficiency, the exterior edge face of described air inlet valve lever 37 is provided with the central blind hole 372 of indent, gas can enter central blind hole 372 to promote air inlet valve lever 37, increase the area of contact of gas and air inlet valve lever 37, simultaneously preferred, described air inlet valve lever 37 is through with inlet hole 373 in radial direction, inlet hole 373 communicates with described central blind hole 372, the gas entering central blind hole 372 can be entered in interior pipe 31 by inlet hole 373.In the present embodiment, air inlet system is directly arranged on venting gas appliance, and overall volume is little, and both mutual when workings do not disturb, and all work independently.
In addition, in order to increase breathing structure 3 entirety and extraneous degree of communicating in the present embodiment, being through with via hole 321 between the inwall of described outer tube 32 and outer wall, adding the efficiency of air inlet, exhaust.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and is familiar with this those skilled in the art and should be understood that and the present invention includes but the content being not limited to accompanying drawing and describing in embodiment above.Any amendment not departing from function and structure principle of the present invention all will comprise within the scope of the appended claims.
Claims (10)
1. the spring catcher with breathing structure, spring catcher comprises brake chamber, brake chamber is provided with the pneumostome communicated with the external world, it is characterized in that, the outside breathing structure be provided with at pneumostome place for keeping brake chamber internal air pressure and ambient pressure to balance each other of described brake chamber, described breathing structure comprises the venting gas appliance of the gas of brake chamber toward extraneous excretion, and described venting gas appliance is provided with the air inlet system of being supplied gas toward brake chamber by ambient atmos.
2. a kind of spring catcher with breathing structure as claimed in claim 1, it is characterized in that: described breathing structure comprises exhaust joint, exhaust joint comprises two sections of diameters and to differ inner and outer tubes, and the diameter of interior pipe is less than outer tube diameter, and interior pipe is towards described pneumostome.
3. a kind of spring catcher with breathing structure as claimed in claim 2, it is characterized in that: described venting gas appliance comprises outlet valve, outlet valve is located in described outer tube, the interior edge face of outlet valve and the end face of interior pipe offset, the exterior edge face of outlet valve is compressed with the first Returnning spring, between the interior edge face of outlet valve and exterior edge face, is provided with exhaust port.
4. a kind of spring catcher with breathing structure as claimed in claim 3, is characterized in that: the inwall of described outer tube is provided with snap ring, and described first Returnning spring is located between snap ring and the exterior edge face of outlet valve.
5. a kind of spring catcher with breathing structure as claimed in claim 3, it is characterized in that: described first Returnning spring is volute spring, the larger end of diameter is towards the exterior edge face of outer tube.
6. a kind of spring catcher with breathing structure as claimed in claim 3, it is characterized in that: described outlet valve is provided with center hole, described air inlet system comprises air inlet valve lever, air inlet valve lever is through described center hole, the inner of air inlet valve lever is provided with the limited ring offseted with the interior edge face of outlet valve, and the outer end of air inlet valve lever is compressed with the second Returnning spring.
7. a kind of spring catcher with breathing structure as claimed in claim 6, it is characterized in that: the outer end of air inlet valve lever is provided with annular convex ring, described second Returnning spring is located at the exterior edge face of annular convex ring and outlet valve.
8. a kind of spring catcher with breathing structure as claimed in claim 6, is characterized in that: the exterior edge face of described air inlet valve lever is provided with the central blind hole of indent.
9. a kind of spring catcher with breathing structure as claimed in claim 8, it is characterized in that: described air inlet valve lever is through with inlet hole in radial direction, inlet hole communicates with described central blind hole.
10. a kind of spring catcher with breathing structure as described in one of claim 2 ~ 9, is characterized in that: be through with via hole between the inwall of described outer tube and outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035244.2A CN105545993B (en) | 2016-01-19 | 2016-01-19 | A kind of spring catcher with breathing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035244.2A CN105545993B (en) | 2016-01-19 | 2016-01-19 | A kind of spring catcher with breathing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105545993A true CN105545993A (en) | 2016-05-04 |
| CN105545993B CN105545993B (en) | 2018-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035244.2A Active CN105545993B (en) | 2016-01-19 | 2016-01-19 | A kind of spring catcher with breathing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105545993B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884912A (en) * | 2017-03-08 | 2017-06-23 | 广西柳工机械股份有限公司 | Engineering machinery brake chamber |
| CN112064742A (en) * | 2020-09-27 | 2020-12-11 | 佛山市己阿已磁电设备有限公司 | Respirator for keeping air pressure of pipeline stable |
| CN114470668A (en) * | 2021-12-08 | 2022-05-13 | 黎明珠 | Breathe internal medicine with recovered physiotherapy device of pulmonary function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19946680C1 (en) * | 1999-09-29 | 2001-01-18 | Knorr Bremse Systeme | Pneumatically-operated disc brake for commercial vehicle has flange opening in brake saddle for provided with cover preventing ingress of dirt when pneumatic cylinder is not in place |
| CN2695747Y (en) * | 2004-04-30 | 2005-04-27 | 上海航天设备制造总厂 | Breathing vlave |
| WO2012164587A2 (en) * | 2011-05-26 | 2012-12-06 | Wabco India Limited | Internal breather valve for spring brake actuators |
| DE102012006090A1 (en) * | 2012-03-26 | 2013-09-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disk brake for commercial vehicles, has sealing element arranged between plunger and brake caliper for sealing opening, where plunger is secured by holding element and withdrawn against from brake caliper |
| TWM496705U (en) * | 2014-11-26 | 2015-03-01 | Lun Pin Entpr Co Ltd | Oil tank cover with pressure regulating valve and pressure regulating valve thereof |
| CN205533907U (en) * | 2016-01-19 | 2016-08-31 | 浙江万安科技股份有限公司 | Spring brake device of structure is breathed in area |
-
2016
- 2016-01-19 CN CN201610035244.2A patent/CN105545993B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19946680C1 (en) * | 1999-09-29 | 2001-01-18 | Knorr Bremse Systeme | Pneumatically-operated disc brake for commercial vehicle has flange opening in brake saddle for provided with cover preventing ingress of dirt when pneumatic cylinder is not in place |
| CN2695747Y (en) * | 2004-04-30 | 2005-04-27 | 上海航天设备制造总厂 | Breathing vlave |
| WO2012164587A2 (en) * | 2011-05-26 | 2012-12-06 | Wabco India Limited | Internal breather valve for spring brake actuators |
| DE102012006090A1 (en) * | 2012-03-26 | 2013-09-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Disk brake for commercial vehicles, has sealing element arranged between plunger and brake caliper for sealing opening, where plunger is secured by holding element and withdrawn against from brake caliper |
| TWM496705U (en) * | 2014-11-26 | 2015-03-01 | Lun Pin Entpr Co Ltd | Oil tank cover with pressure regulating valve and pressure regulating valve thereof |
| CN205533907U (en) * | 2016-01-19 | 2016-08-31 | 浙江万安科技股份有限公司 | Spring brake device of structure is breathed in area |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884912A (en) * | 2017-03-08 | 2017-06-23 | 广西柳工机械股份有限公司 | Engineering machinery brake chamber |
| CN112064742A (en) * | 2020-09-27 | 2020-12-11 | 佛山市己阿已磁电设备有限公司 | Respirator for keeping air pressure of pipeline stable |
| CN114470668A (en) * | 2021-12-08 | 2022-05-13 | 黎明珠 | Breathe internal medicine with recovered physiotherapy device of pulmonary function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105545993B (en) | 2018-08-03 |
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Denomination of invention: Spring braking device with breathing structure Effective date of registration: 20211222 Granted publication date: 20180803 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co., Ltd Pledgor: ZHEJIANG VIE SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021980015560 |
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