CN102529930B - Air boost pump of engineering mechanical braking system - Google Patents
Air boost pump of engineering mechanical braking system Download PDFInfo
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- CN102529930B CN102529930B CN201110454007.7A CN201110454007A CN102529930B CN 102529930 B CN102529930 B CN 102529930B CN 201110454007 A CN201110454007 A CN 201110454007A CN 102529930 B CN102529930 B CN 102529930B
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- air
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- foot brake
- filter core
- brake valves
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Abstract
Air boost pump of engineering mechanical braking system, belongs to mechanical braking sytem field.By having established one article of induction tract i.e. the 4th pipeline between booster pump and foot brake valves more, when unclamping foot brake valves, outside is not directly discharged to after those air refluxed get back to foot brake valves, but by this pipeline flow into booster pump, due to pull back spring band take offence piston return time required supplementary air air chamber one district in.Without the need to carrying out gas make-up from outside in whole breathing cyclic process, directly being completed by pump body, forming the enclosed inner circulating air system for the distribution of commodities, the dust like this, moisture and aggressive fume would not enter in cylinder from breathing valve.And being provided with detouchable cleaning device before air compressor to foot brake valves, cleaning device is provided with filtering net for carrying out filtration cleaning to the gas in circulating system, can remain the clean of gas.
Description
Technical field
The present invention relates to a kind of braking system of engineering machinery, particularly relate to a kind of air boost pump of engineering mechanical braking system.
Background technology
Existing air boosting pump is that pressurized air enters in booster pump when slamming foot brake valves, and pressurized air promotes piston, drives hydraulic piston through push rod, makes braking liquid convertor turbocharge more than ten doubly, drives brake clamp to brake thus.And the air of the air in other end cylinder after gas piston compression is discharged by breathing valve, when unclamping foot brake valves, the pressurized air in booster pump is directly discharged after being back to foot brake valves, to be taken offence piston return by pull back spring band, vital qi is formed in other end cylinder after return, the air of outside also enters cylinder by breathing valve thereupon, when booster pump has used a large amount of dust, (as bulldozer during the tight bad working environment of moisture or aggressive fume, load wagon and various construction machinery and equipment) these dusts, moisture or aggressive fume can enter cylinder thus, and be back to foot brake valves, the sealing property of heavy corrosion and destruction gas piston and foot brake valves, the service life of element part and service efficiency is caused to reduce, damage 70% through the pneumatic part of investigation and analysis booster pump results from above-mentioned drawback.
Certainly the enclosed space cycle also having a kind of booster pump of mechanical system to design, a kind of Novel air intensifier pump disclosed in Chinese patent literature CN201747560U, comprise booster pump air chamber 1 and booster pump air chamber 2, lubricating cup, it is connected with lubricating cup vacuum chamber by booster pump air chamber 2, form the structure of an Inner eycle thus, though this kind of structure design can reduce external dust to a certain extent and moisture enters lubricating cup, but the source of the gas filtered that air compressor provides still has foreign material and brings lubricating cup into, so the design of structure to a certain degree can only ensure that the circulation of booster pump inside brake liquid is unimpeded, and afterburning pump chamber 1 inevitably needs to exhale and air-breathing from outside, so still extraneous dust can not be solved, moisture and aggressive fume are on the impact of booster pump.
Summary of the invention
In order to the air boosting pump solving existing braking system of engineering machinery easily sucks dust, moisture and aggressive fume, and affect service life and the performance of booster pump, it is simple that the present invention aims to provide a kind of structure, dust, moisture and aggressive fume effectively can be avoided to enter air boosting pump inside, improve the air boost pump of engineering mechanical braking system of air boosting pump service life and performance.
For reaching goal of the invention the technical solution used in the present invention be:
Air boost pump of engineering mechanical braking system, comprise booster pump body, air compressor, foot brake valves, hydraulic actuating cylinder, brake clamp, described booster pump body comprises air chamber, be arranged at the gas piston assembly in air chamber, push rod, described air chamber is divided into air chamber first district and air chamber second district by described gas piston assembly, described push rod one end is connected with gas piston assembly, the other end is connected with the hydraulic piston assembly be arranged in hydraulic actuating cylinder, described hydraulic actuating cylinder and brake clamp are by the first pipeline communication, described air compressor is communicated with by second pipe with foot brake valves, described foot brake valves has detent channel and exhaust passage, the detent channel of described foot brake valves is communicated with air chamber first district by the 3rd pipeline and forms braking function, the exhaust passage of described foot brake valves is communicated with air chamber second district by the 4th pipeline and forms air suction function, air chamber two district also arranges the 5th pipeline for exhaling, 5th pipeline is provided with outlet valve.Described booster pump by second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline formed one exhale, air-breathing internal circulation system.
One as the technical program is improved, and is provided with detouchable cleaning device before described air compressor to foot brake valves, and described cleaning device is provided with filtering net.
As the further improvement of the technical program, described fil comprises the housing of upper opening, described housing holds inner chamber around one, hold bottom wall of inner cavity protrusion and be provided with connecting portion, described connecting portion has and the through hole holding inner chamber and communicate, filter core is provided with in described accommodation inner chamber, filter core support, filter core cap, described filter core one end and accommodation bottom wall of inner cavity are offseted and are sealed by the first seal ring with accommodation bottom wall of inner cavity, the other end and filter core support one end are offseted and are sealed by the second seal ring with filter core support one end, described filter core cap detouchable is installed on described shell nozzle place, its end is provided with and the through hole holding inner chamber and communicate, the described filter core support other end and filter core cap offset and itself and filter core cap are sealed by the 3rd seal ring.
Improving further again as the technical program, described first pipeline, second pipe, the 3rd pipeline, the 4th pipeline are the flexible pipe that outside is surrounded by bonding braid.
Improving further again as the technical program, described first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline are connected by adaptor union with between booster pump body, air compressor, foot brake valves, hydraulic actuating cylinder, brake clamp.
Technical conceive of the present invention is: established one article of induction tract i.e. the 4th pipeline between booster pump and foot brake valves more, when unclamping foot brake valves, outside is not directly discharged to after those air refluxed get back to foot brake valves, but by this pipeline flow into booster pump, due to pull back spring band take offence piston return time required supplementary air air chamber two district in supplement.Without the need to carrying out gas make-up from outside in whole breathing cyclic process, directly being completed by pump body, forming the enclosed inner circulating air system for the distribution of commodities, the dust like this, moisture and aggressive fume would not enter in cylinder from breathing valve.And being provided with detouchable cleaning device before air compressor to foot brake valves, cleaning device is provided with filtering net for carrying out filtration cleaning to the gas in circulating system, can remain the clean of gas.
The invention has the beneficial effects as follows compared to existing technology: can effectively avoid dust, moisture and aggressive fume to enter air boosting pump inside, improve air boosting pump service life and performance.
Accompanying drawing explanation
Fig. 1 is a kind of mechanical braking sytem air boosting pump of the present invention external structure schematic diagram;
Fig. 2 is a kind of mechanical braking sytem air boosting pump of the present invention work structuring schematic diagram;
Fig. 3 is cleaner structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described, but does not limit the invention to these detailed description of the invention.One skilled in the art would recognize that all alternativess, improvement project and the equivalents that present invention encompasses and may comprise in Claims scope.
See Fig. 1-Fig. 3, a kind of air boost pump of engineering mechanical braking system, comprises booster pump body 1, air compressor 2, foot brake valves 3, hydraulic actuating cylinder 4, brake clamp 5.Described air boosting pump body 1 is provided with air chamber 11, the gas piston assembly 111 suitable with it is provided with in air chamber 11, described gas piston assembly 111 can free motion in air chamber 11 under gas push, air chamber 11 is divided into the first district 112 by described gas piston assembly 111, second district 113, described foot brake valves 3 is provided with detent channel and exhaust passage, the detent channel of described foot brake valves 3 is communicated with air chamber second district 112 by the 3rd pipeline 6 and forms braking function, the exhaust passage of described foot brake valves is communicated with air chamber second district 113 by the 4th pipeline 7 and forms air suction function, air chamber two district 113 also arranges the 5th pipeline 8 for exhaling, 5th pipeline is provided with outlet valve 13.
Be provided with a push rod 114 in described air chamber 11, this push rod 114 one end is connected with gas piston assembly 111, and the other end is connected with hydraulic piston assembly 41.What hydraulic piston assembly 41 was suitable arranges in hydraulic actuating cylinder 4, and hydraulic actuating cylinder 4 is connected by the first pipeline 9 with brake clamp 5, and the hydraulic oil of its inside can provide brake power under the effect of hydraulic piston assembly 41 brake clamp 5.Described foot brake valves 3 is communicated with by second pipe 10 with air compressor 2, described air compressor is the engine installation for gas-circulating system, removable cleaning device 21 is provided with between itself and foot brake valves 3, described cleaning device 21 is provided with filtering net 22, and the gas of air compressor 2 just can filter through cleaning device 21.Like this, the filtering net 22 only needing cleaned at regular intervals or change in cleaning device 21, just can ensure the quality of inner loop gas.
Described fil 21 comprises the housing 210 of upper opening, described housing 210 holds inner chamber 211 around one, hold inner chamber 211 diapire protrusion and be provided with connecting portion 212, described connecting portion 212 has and the through hole holding inner chamber and communicate, filter core 213, filter core support 214, filter core cap 215 is provided with in described accommodation inner chamber 211, described filter core 213 one end is offseted with accommodation inner chamber 211 diapire and is sealed by the first seal ring 216 with accommodation diapire 211, and the other end and filter core support 214 one end offset and seal 217 with filter core support 214 one end by the second seal ring; Described filter core cap 215 detouchable is installed on described housing 210 opening part, and its end is provided with and the through hole holding inner chamber 211 and communicate, and described filter core support 214 other end and filter core cap 215 offset and itself and filter core cap 215 are sealed by the 3rd seal ring 218.
Described first pipeline 9, second pipe 10, the 3rd pipeline 6, the 4th pipeline 7 are the outside flexible pipe being surrounded by bonding braid, and it is connected by adaptor union with between booster pump body 1, air compressor 2, foot brake valves 3, hydraulic actuating cylinder 4, brake clamp 5.
When stepping on foot brake valves 3, the pressure gas that air compressor 2 provides enters air chamber first district 112 by the 3rd pipeline 6, and promote gas piston assembly 111 and drive push rod 114 to air chamber second district 113 1 lateral movement, (pressure gas that its process produces is exhaled by the expiration in air chamber second district 113 and the 5th pipeline 8/is discharged.) the Sports band hydrodynamic pressure piston assembly 41 of push rod 114, hydraulic oil is under hydraulic piston assembly 41 acts on, and action is in brake clamp 5, and brake clamp 5 completes braking maneuver.When unclamping foot brake valves 3, air chamber first district 112 gas is back to foot brake valves 3 by the 3rd pipeline 6, enter/suck air chamber second district 113 by exhaust passage the 4th pipeline 7 of foot brake valves 3, with the vacuum produced during supplementary gas piston assembly 111 return, expiration five pipeline 8 of remaining gas through air chamber second district 113 is exhaled/is discharged.Again during action, pressure gas is provided again by air compressor 2, circulation like this, without the need to directly carrying out gas compensation from outside in whole breathing cyclic process, gas compensation can directly complete in air boosting pump inside, form the inner circulating air system for the distribution of commodities closed, the dust of outside would not enter in cylinder from breathing valve like this.And between air compressor 2 to foot brake valves 3, being provided with detouchable cleaning device 21, cleaning device 21 is provided with filtering net 22 for carrying out filtration cleaning to the gas in circulating system, can remain the cleanliness level of gas.Thus can effectively avoid dust, moisture and aggressive fume to enter air boosting pump inside, improve air boosting pump service life and performance.
Claims (3)
1. air boost pump of engineering mechanical braking system, comprise booster pump body, air compressor, foot brake valves, hydraulic actuating cylinder, brake clamp, described booster pump body comprises air chamber, be arranged at the gas piston assembly in air chamber, push rod, described air chamber is divided into air chamber first district and air chamber second district by described gas piston assembly, described push rod one end is connected with gas piston assembly, the other end is connected with the hydraulic piston assembly be arranged in hydraulic actuating cylinder, described hydraulic actuating cylinder and brake clamp are by the first pipeline communication, described air compressor is communicated with by second pipe with foot brake valves, it is characterized in that: described foot brake valves has detent channel and exhaust passage, the detent channel of described foot brake valves is communicated with air chamber first district by the 3rd pipeline and forms braking function, the exhaust passage of described foot brake valves is communicated with air chamber second district by the 4th pipeline and forms air suction function, air chamber second district also arranges the 5th pipeline for exhaling and is provided with outlet valve, described booster pump by second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline formed one exhale, air-breathing internal circulation system, also be provided with removable cleaning device between described air compressor to foot brake valves, in described cleaning device, be provided with filtering net, described cleaning device comprises the housing of upper opening, described housing holds inner chamber around one, hold bottom wall of inner cavity protrusion and be provided with connecting portion, described connecting portion has and the through hole holding inner chamber and communicate, filter core is provided with in described accommodation inner chamber, filter core support, filter core cap, described filter core one end and accommodation bottom wall of inner cavity are offseted and are sealed by the first seal ring with accommodation bottom wall of inner cavity, the other end and filter core support one end are offseted and are sealed by the second seal ring with filter core support one end, described filter core cap detouchable is installed on described shell nozzle place, its end is provided with and the through hole holding inner chamber and communicate, the described filter core support other end and filter core cap offset and itself and filter core cap are sealed by the 3rd seal ring.
2. air boost pump of engineering mechanical braking system as claimed in claim 1, is characterized in that: described first pipeline, second pipe, the 3rd pipeline, the 4th pipeline are the flexible pipe that outside is surrounded by bonding braid.
3. air boost pump of engineering mechanical braking system as claimed in claim 2, is characterized in that: described first pipeline, second pipe, the 3rd pipeline, the 4th pipeline are connected by adaptor union with between booster pump body, air compressor, foot brake valves, hydraulic actuating cylinder, brake clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454007.7A CN102529930B (en) | 2011-12-30 | 2011-12-30 | Air boost pump of engineering mechanical braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110454007.7A CN102529930B (en) | 2011-12-30 | 2011-12-30 | Air boost pump of engineering mechanical braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102529930A CN102529930A (en) | 2012-07-04 |
| CN102529930B true CN102529930B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110454007.7A Expired - Fee Related CN102529930B (en) | 2011-12-30 | 2011-12-30 | Air boost pump of engineering mechanical braking system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554506B (en) * | 2017-08-14 | 2020-06-16 | 厦门金利业科技有限公司 | Anti-blocking anti-high-temperature failure booster pump |
| CN108916269A (en) * | 2018-08-17 | 2018-11-30 | 长兴微羽智能科技有限公司 | A kind of disk brake for car having anti-slip function |
| CN108916268A (en) * | 2018-08-17 | 2018-11-30 | 长兴微羽智能科技有限公司 | A kind of disk brake for car |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202608759U (en) * | 2011-12-30 | 2012-12-19 | 晋江市升泰机械配件有限公司 | Air booster pump of engineering mechanical brake system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0891203A (en) * | 1994-09-28 | 1996-04-09 | Hino Motors Ltd | Vehicular brake device |
| CN201120888Y (en) * | 2007-11-29 | 2008-09-24 | 徐勇 | Air boosting pump |
| CN201300835Y (en) * | 2008-09-22 | 2009-09-02 | 厦门厦工小型机械有限公司 | Pneumatic control device of arrester |
| CN201500483U (en) * | 2009-05-07 | 2010-06-09 | 宁波市博尔法液压有限公司 | Return oil filter |
| CN201454278U (en) * | 2009-07-02 | 2010-05-12 | 石建伟 | Air cleaner filter element |
| CN201559637U (en) * | 2009-11-27 | 2010-08-25 | 烟台市东汽农业装备有限公司 | Wheeled tractor brake system adopting caliper disc brake structure |
| CN201786495U (en) * | 2010-07-21 | 2011-04-06 | 北汽福田汽车股份有限公司 | Air filter |
| CN201784612U (en) * | 2010-08-24 | 2011-04-06 | 上海奕洁汽车科技有限公司 | High-pressure booster |
| CN102022309B (en) * | 2010-12-02 | 2012-09-05 | 芜湖盛力制动有限责任公司 | Booster pump for engineering mechanical brake system |
-
2011
- 2011-12-30 CN CN201110454007.7A patent/CN102529930B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202608759U (en) * | 2011-12-30 | 2012-12-19 | 晋江市升泰机械配件有限公司 | Air booster pump of engineering mechanical brake system |
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| CN102529930A (en) | 2012-07-04 |
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| ASS | Succession or assignment of patent right |
Owner name: FUJIAN XINTAI MACHINERY CO., LTD. Free format text: FORMER OWNER: JINJIANG SHENGTAI MACHINERY FITTINGS CO., LTD. Effective date: 20140120 |
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Free format text: CORRECT: ADDRESS; FROM: 362200 QUANZHOU, FUJIAN PROVINCE TO: 362235 QUANZHOU, FUJIAN PROVINCE |
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Effective date of registration: 20140120 Address after: 362235, Fujian, Jinjiang province Yonghe Town, British pier, Shanghai Hang Village Applicant after: FUJIAN XINTAI MACHINERY CO., LTD. Address before: 362200, Fujian, Quanzhou province Jinjiang Yonghe Town British pier Industrial Zone Applicant before: Jinjiang Shengtai Machinery Fittings Co.,Ltd. |
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Granted publication date: 20150812 Termination date: 20191230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |