CN102700536A - Air booster pump of braking system of engineering machine - Google Patents
Air booster pump of braking system of engineering machine Download PDFInfo
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- CN102700536A CN102700536A CN2012100630702A CN201210063070A CN102700536A CN 102700536 A CN102700536 A CN 102700536A CN 2012100630702 A CN2012100630702 A CN 2012100630702A CN 201210063070 A CN201210063070 A CN 201210063070A CN 102700536 A CN102700536 A CN 102700536A
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- air
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- booster pump
- connection cover
- arc
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Abstract
The invention discloses an air booster pump of a braking system of an engineering machine. The air booster pump comprises a cylinder block, a connecting cover, and a plurality of vent grooves disposed on the connecting cover. The vent grooves are disposed on the surface of a stopping opening jointed with the cylinder block on the connecting cover. When the connecting cover is connected with the cylinder block in assembly, interior and exterior of a cavity are communicated. Each arc vent groove is in a structure that a planar recess is formed on an end face of the stopping opening of the connecting cover and an arc recess is formed on an outer circle of the stopping opening of the connecting cover. Due to the fact that a filtration vent opening is large in size, air flow is low in flow speed, dust and water molecules in the air cannot be sucked into the inner cavity of the cylinder block easily during instant work, and the inner surface of the cylinder block is protected. Rectangular felt strips are used as filtration materials, so that the dust and the water molecules in the air can be isolated on surfaces of the felt strips. By the air booster pump which is delicate in braking, reliability of products is enhanced, service life of the products is prolonged, and stability and safety of braking performance of the products are guaranteed.
Description
Technical field
The invention belongs to the technical field of construction machinery and equipment, relate to the brake system in the construction machinery and equipment.More particularly, the present invention relates to a kind of construction machinery and equipment brake system air booster pump.
Background technology
The air booster pump is mainly used in all kinds of construction machinery and equipment brakings such as loader, excavating machine, roller, fork truck, and is afterburning with pressurized air control, attainment brake hydraulic pressure.
Because the work condition environment of construction machinery and equipment is abominable, braking failure often takes place in the industrial wheeled equipment that causes being partly with the dry type brake system, and the air booster pump of the main braking element of conduct is the element that is easy to initiating failure.Therefore, braking element air booster pump dustproof and waterproof structure Design is related to reliability of products and service life.
Referring to the Fig. 1 to Fig. 6 in the accompanying drawing: at present, also there are some defectives in the air booster pump of prior art:
Dustproof filter vent (i.e. respirator 6 among the figure) adopts 3/8, and " threaded connection formula structure is screwed in (i.e. connection cover 1 among the figure) on the end cap, and its breathing area is 42mm
2When booster pump was worked in moment; The air-flow velocity that filters vent is big; Operation field koniology and hydrone are prone to be inhaled into air-flow the inner chamber of cylinder block 4, cause the frequent movement of cylinder surfaces corrosion and product and wear and tear, thereby influence the in-use performance of product;
Adopt the PEF filter screen, strainability is poor, and during work, most dust and hydrone get into the cylinder block inner chamber with air-flow in the air;
Adopt 3/8 joint type filter type to be screwed on the connection cover 1,, in carrying, be prone to bump fracture because of the material material of joint screw thread is a bakelite, have with machinery vibration thread looseness, cause easily to come off;
Product is little because of the dustproof filter breathing area, and during the product emergency braking, when pipeline air pressure reached 250kPa, the flex point air-resistance phenomenon appearred stagnating in air-flow, and then slowly rose.
Summary of the invention
The present invention provides a kind of construction machinery and equipment brake system air booster pump, its objective is the enhancing reliability of products, prolongs the service life of product, guarantees the stable and safety of product deceleration and stopping performance.
To achieve these goals, the technical scheme taked of the present invention is:
Construction machinery and equipment brake system air booster pump provided by the present invention comprises cylinder block, connection cover, on described connection cover, establishes a plurality of air channels; Described air channel is located on the seam surface that combines with cylinder block on the said connection cover, after the assembling of described connection cover and cylinder block is connected, makes the inside and outside connection of cavity; Described air channel is the groove of arc, and its structure is the depression that on the depression that forms the plane on the seam end face of connection cover, seam cylindrical at connection cover, forms arc.
On the seam cylindrical of described connection cover, establish the felt groove of annular, and in described felt groove, inlay rectangle felt bar.
The quantity of described air channel is four.
Described air channel is of a size of: arc-shaped slot length is 50mm on the described seam cylindrical; The arc-shaped slot length of air channel bottom is 40mm.
The cup depth on the plane of described air channel, the cup depth of arc are 2mm.
The present invention adopts technique scheme, has solved the technological knotty problem of prior art like product.When air booster pump of the present invention was worked in moment, because it is big to filter the vent area, air-flow velocity was little, and koniology and hydrone are difficult for being inhaled into the cylinder block inner chamber with air-flow, have protected the cylinder block inside face; Adopt rectangle felt bar as filter material, during work, koniology and hydrone are isolated on the felt bar surface, are difficult for getting into the cylinder block inner chamber, guarantee the cleanliness level of cylinder block inside face; When the product brake off, be in when air-breathing, can pollutantss such as dust, sand in the operation field air and hydrone be isolated on the surface of rectangle felt bar; When the product emergency braking is in when venting, can be with entering in the air attached to pollutants such as the lip-deep dust of felt bar, sand and hydrone; The dustproof filter breathing area is big, and air-resistance phenomenon when having overcome emergency braking, pipeline air-flow do not have the flex point of stagnation air-resistance phenomenon, and air-flow is smooth, and braking is sensitive.Saved respirator, structure further obtains simplifying; Strengthen reliability of products, prolonged the service life of product, guaranteed the stable and safety of product deceleration and stopping performance.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this specification sheets and the figure is made brief description:
Fig. 1 is the scheme drawing of the said structure of this specification sheets background technology part;
Fig. 2 looks the full section scheme drawing for the left side of structure shown in Figure 1;
Fig. 3 is the structural representation of the respirator among Fig. 1;
Fig. 4 is the connection cover structural representation among Fig. 1;
Fig. 5 is the A-A cross-sectional schematic of structure shown in Figure 4;
Fig. 6 looks scheme drawing for the left side of structure shown in Figure 5;
Fig. 7 is a contour structures scheme drawing of the present invention;
Fig. 8 looks the full section scheme drawing for the left side of structure shown in Figure 7;
Fig. 9 is the connection cover structural representation among Fig. 7;
Figure 10 is the A-A cross-sectional schematic of structure shown in Figure 7;
Figure 11 looks scheme drawing for the left side of structure shown in Figure 10.
Be labeled as among the figure:
1, connection cover, 2, air channel, 3, rectangle felt bar, 4, cylinder block, 5, the felt groove, 6, respirator, 7, O-ring seals, 8, seal groove.
The specific embodiment
Contrast accompanying drawing below, through the description to embodiment, specific embodiments of the invention is done further detailed explanation, to help those skilled in the art inventive concept of the present invention, technical scheme is had more complete, accurate and deep understanding.
Structure of the present invention like Fig. 7 and Fig. 8 expression for a kind of construction machinery and equipment brake system air booster pump, comprises cylinder block 4, connection cover 1.This booster pump is mainly used in all kinds of construction machinery and equipment brakings such as loader, excavating machine, roller, fork truck, and is afterburning with pressurized air control, attainment brake hydraulic pressure.Wherein, the structure of connection cover 1 is referring to Fig. 9, Figure 10 and Figure 11.
In order to solve the problem that exists at the described present known technology of this specification sheets background technology part and to overcome its defective; Realize that the service life, the assurance product deceleration and stopping performance that strengthen reliability of products, prolong product are stablized and the goal of the invention of safety, the technical scheme that the present invention takes is:
Shown in the connection cover structural representation of Figure 11, construction machinery and equipment brake system air booster pump provided by the present invention is established a plurality of air channels 2 on described connection cover 1; On the seam surface that described air channel 2 is located on the said connection cover 1 with cylinder block 4 combines; After 4 assemblings of described connection cover 1 and cylinder block are connected, make the inside and outside connection of cavity; Described air channel 2 is the groove of arc, and its structure is the depression that on the depression that forms the plane on the seam end face of connection cover 1, seam cylindrical at connection cover 1, forms arc.
Said structure is actually outside seam, forms a bending on the lateral cross section of air channel 2, and is promptly inside from outer radial, and then axially feeds cylinder block 4 inner chambers.Originally need carry out the leak free position, and realize the function of ventilation, and save respirator, in fact its structure is simplified.
" threaded connection formula structure is screwed on the connection cover the general employing 3/8 of dustproof filter vent of the prior art, little (the about 42mm of vent area
2), when booster pump was worked in moment, the air-flow velocity that filters vent was big, and koniology and hydrone are inhaled into the cylinder block inner chamber with air-flow easily, cause the cylinder surfaces corrosion.And through the booster pump provided by the present invention after the above-mentioned technological improvement, its dustproof filter mode is in connection cover 1 and cylinder block 4 end face junctions, establishes a plurality of air channels 2, and (breathing area is 320mm to increase the filtration breathing area
2), when working in moment, because it is big to filter the vent area, air-flow velocity is little, and koniology and hydrone are difficult for being inhaled into the cylinder block inner chamber with air-flow, have protected the cylinder block inside face.
Technique scheme has solved the technological knotty problem of prior art like product, has strengthened reliability of products, has prolonged the service life of product, has guaranteed the stable and safety of product deceleration and stopping performance.
But strengthen in order to solve the vent area; And guarantee to have the performance of good airflow filtering again; Shown in figure 10: the measure that the present invention takes is: on the seam cylindrical of described connection cover 1, establish the felt groove 5 of annular, and in described felt groove 5, inlay rectangle felt bar 3.
What the filtration of prior art adopted is the PEF filter screen, and during work, most dust and hydrone get into the cylinder block inner chamber with air-flow in the air.And the present invention selects dustproof good filter material: what it was selected for use is that rectangle felt bar 3 is as filter material; During work; Koniology and hydrone are isolated on the surface of rectangle felt bar 3, can not get into cylinder block 4 inner chambers, guarantee the cleanliness level of the inside face of cylinder block 4.
In the prior art,, in transportation, be prone to bump fracture, cause thread looseness to come off with the machinery vibration sometimes because of the material material of joint screw thread is a bakelite.And the present invention adopts advanced filtration, is in connection cover 1 and cylinder block 4 end face junctions, opens a plurality of air channels 2 on connection cover 1 inner end surface; Rectangle felt bar 3 is looped around in the peripheral groove (felt groove 5) that end cap cooperates with cylinder block 4; When cylinder block 4 was connected with connection cover 1, rectangle felt bar 3 was fastened to cylinder block (4) endoporus seam R place, can not produce to come off; Reliable and stable, good filtration effect.
The quantity of the above-described air channel 2 of the present invention is four.Adopt four air channels 2 to increase the area of vent, and can not cause influence strainability.
Described air channel 2 is of a size of: arc-shaped slot length is 50mm on the described seam cylindrical; The arc-shaped slot length of air channel 2 bottoms is 40mm.
The cup depth on the plane of described air channel 2, the cup depth of arc are 2mm.The width that has promptly formed groove is 2mm.
The vent area of prior art is 42mm
2, and in the present invention, four air channels 2 of the internal orifice 40mm of connection cover 1 lip-deep air channel 2, collar extension 50mm, wide 2mm, its acting aperture area are 40mm * 2mm * 4 (four grooves), breathing area is 320mm
2, its breathing area reaches 7.5 times of original area.
When the product brake off, be in when air-breathing, can pollutantss such as dust, sand in the operation field air and hydrone be isolated on the surface of rectangle felt bar 3; When the product emergency braking is in when venting, can be with entering in the air attached to pollutants such as rectangle felt bar 3 lip-deep dusts, sand and hydrone.
The prior art like product is little because of the dustproof filter breathing area, and during the product emergency braking, when pipeline air pressure reached 250kPa, the flex point air-resistance phenomenon appearred stagnating in air-flow, and then slowly rose.
And product braking of the present invention is quick.Because product of the present invention is because of the dustproof filter breathing area is big, the air-resistance phenomenon when having overcome emergency braking, pipeline air-flow do not have the flex point of stagnation air-resistance phenomenon, and air-flow is smooth, and braking is sensitive.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (5)
1. a construction machinery and equipment brake system air booster pump comprises cylinder block (4), connection cover (1), it is characterized in that: on described connection cover (1), establish a plurality of air channels (2); Described air channel (2) is located on the seam surface that said connection cover (1) is gone up with cylinder block (4) combines, described connection cover (1) and cylinder block (4) assemble be connected after, make connection inside and outside the cavity; Described air channel (2) is the groove of arc, and its structure is the depression that forms arc in the depression that forms the plane on the seam end face of connection cover (1), on the seam cylindrical of connection cover (1).
2. according to the described construction machinery and equipment brake system air of claim 1 booster pump, it is characterized in that: on the seam cylindrical of described connection cover (1), establish the felt groove (5) of annular, and in described felt groove (5), inlay rectangle felt bar (3).
3. according to the described construction machinery and equipment brake system air of claim 1 booster pump, it is characterized in that: the quantity of described air channel (2) is four.
4. according to the described construction machinery and equipment brake system air of claim 1 booster pump, it is characterized in that: described air channel (2) is of a size of: arc-shaped slot length is 50mm on the described seam cylindrical; The arc-shaped slot length of air channel (2) bottom is 40mm.
5. according to the described construction machinery and equipment brake system air of claim 1 booster pump, it is characterized in that: the cup depth on the plane of described air channel (2), the cup depth of arc are 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210063070.2A CN102700536B (en) | 2012-03-12 | 2012-03-12 | Air booster pump of braking system of engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210063070.2A CN102700536B (en) | 2012-03-12 | 2012-03-12 | Air booster pump of braking system of engineering machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102700536A true CN102700536A (en) | 2012-10-03 |
| CN102700536B CN102700536B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210063070.2A Active CN102700536B (en) | 2012-03-12 | 2012-03-12 | Air booster pump of braking system of engineering machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1442602A (en) * | 2002-06-25 | 2003-09-17 | 姚平 | Rotary piston machine |
| CN201009880Y (en) * | 2007-03-15 | 2008-01-23 | 芜湖盛力制动有限责任公司 | Air enforcing pump |
| CN201228619Y (en) * | 2008-06-14 | 2009-04-29 | 芜湖盛力制动有限责任公司 | Air enforcing pump |
| CN201696329U (en) * | 2010-06-10 | 2011-01-05 | 李正奇 | Distributor for ultrahigh pressure liquid ring isothermal compressor |
| RU2441992C1 (en) * | 2010-10-18 | 2012-02-10 | Владимир Степанович Григорчук | Rotary diesel engine |
| CN102359594A (en) * | 2011-09-09 | 2012-02-22 | 湖南远扬煤机制造有限公司 | Rotating shaft backflow type seal housing |
| CN202541511U (en) * | 2012-03-12 | 2012-11-21 | 芜湖盛力科技股份有限公司 | Air booster of engineering mechanical brake system |
-
2012
- 2012-03-12 CN CN201210063070.2A patent/CN102700536B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442602A (en) * | 2002-06-25 | 2003-09-17 | 姚平 | Rotary piston machine |
| CN201009880Y (en) * | 2007-03-15 | 2008-01-23 | 芜湖盛力制动有限责任公司 | Air enforcing pump |
| CN201228619Y (en) * | 2008-06-14 | 2009-04-29 | 芜湖盛力制动有限责任公司 | Air enforcing pump |
| CN201696329U (en) * | 2010-06-10 | 2011-01-05 | 李正奇 | Distributor for ultrahigh pressure liquid ring isothermal compressor |
| RU2441992C1 (en) * | 2010-10-18 | 2012-02-10 | Владимир Степанович Григорчук | Rotary diesel engine |
| CN102359594A (en) * | 2011-09-09 | 2012-02-22 | 湖南远扬煤机制造有限公司 | Rotating shaft backflow type seal housing |
| CN202541511U (en) * | 2012-03-12 | 2012-11-21 | 芜湖盛力科技股份有限公司 | Air booster of engineering mechanical brake system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102700536B (en) | 2015-04-22 |
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