CN102943902B - Air pressure anti-lock braking system (ABS) regulating valve - Google Patents
Air pressure anti-lock braking system (ABS) regulating valve Download PDFInfo
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- CN102943902B CN102943902B CN201210518970.1A CN201210518970A CN102943902B CN 102943902 B CN102943902 B CN 102943902B CN 201210518970 A CN201210518970 A CN 201210518970A CN 102943902 B CN102943902 B CN 102943902B
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Abstract
The invention discloses an air pressure anti-lock braking system (ABS) regulating valve. The air pressure ABS regulating valve comprises an outer shell, wherein an inlet valve seat and an exhaust valve seat are arranged in the outer shell; an inlet channel is positioned on the inlet valve seat; an outlet channel and a pressure reducing exhaust channel are arranged on the exhaust valve seat; a valve core assembly is installed between the inlet valve seat and the exhaust valve seat; the inlet channel of the inlet valve seat is communicated with the outlet channel of the exhaust valve seat by a gas circuit of the valve core assembly; the valve core assembly comprises a valve core body and an electromagnetic coil sleeved to the valve core body; the electromagnetic coil is provided with two working currents; when the small current is charged to the electromagnetic coil, induction electromagnetic force is generated by the whole outer circumferential surface of the valve core and the gas flow in the inlet channel of the inlet valve seat is reduced till the inlet channel is closed; and when the large current is charged to the electromagnetic coil, the valve core body in the valve core assembly is moved towards the inlet valve seat continuously, and a cylindrical pin on the valve core body compresses an external spring so that a gap between the valve core body and the inlet valve seat is zero, an internal spring is recovered to an initial compression state to open a pressure relief valve port, and the outlet channel is communicated with the pressure reducing exhaust channel, thereby realizing the pressure reduction.
Description
Technical field
The present invention relates to modulating valve, especially a kind of air pressure ABS modulating valve using for, motorbus skidding.
Background technique
Air pressure ABS regulator apply valve in, motorbus, existing air pressure ABS modulating valve general structure is mainly taked segmentation spool, each spool is equipped with Special electromagnetic coil, the motion of sub-control valve core.
Air pressure ABS modulating valve working principle schematic diagram as existing in Fig. 1, arranges normally open solenoid valve a in air inlet gas circuit, in the air inlet gas circuit between normally open solenoid valve a and braking clamp c, be also provided with disappointing branch road, and this disappointing branch road is communicated with ambient atmosphere by normally closed solenoid valve b.This normally open solenoid valve a and normally closed solenoid valve b are equipped with respectively Special electromagnetic coil, the motion of sub-control valve core.
Adopt this control structure, make air pressure ABS modulating valve volume and weight all larger, inconvenience and cost are installed high.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of volume little, the air pressure ABS modulating valve using for, motorbus skidding of compact structure.
To achieve these goals, the technical solution used in the present invention is as follows:
Air pressure ABS modulating valve, it is characterized in that, comprise frame, this frame inside is provided with inlet valve seat and delivery valve seat, described inlet valve seat is installed and is equipped with gas-entered passageway, described delivery valve seat is provided with outlet passageway and step-down exhaust passage, between described inlet valve seat and delivery valve seat, Spool assembly is installed, and the gas-entered passageway of described inlet valve seat is communicated with by the gas circuit of Spool assembly and the outlet passageway of described delivery valve seat;
Described Spool assembly comprises valve core and is sleeved on the electromagnetic coil on this valve core, the straight pin that central shaft with this valve core intersects vertically is installed on this valve core inwall, at this valve core inner chamber, spring spool is installed, this spring spool is between described inlet valve seat and straight pin, described spring spool front end is provided with for blocking or open the occluding body of described inlet valve seat intake valve port, in the position near described inlet valve seat intake valve port, be installed with guide ring, the front portion of described spring spool is through this guide ring, between this guide ring and described straight pin, be provided with the outer spring being sleeved on described spring spool, this outer spring precompression,
In described spring spool, installation sleeve is equipped with the valve rod of inner spring, on this valve rod, be provided with the via hole that described straight pin passes, the diameter of this via hole is greater than the diameter of described straight pin, and the front end of described valve rod is for blocking or open the pressure release valve port of described delivery valve seat, described inner spring precompression.
Described occluding body is a steel ball, and the diameter of this steel ball is greater than the diameter of described intake valve port.
Described valve rod front end is frustoconic shape, and the diameter of described pressure release valve port is greater than described frustoconic shape point diameter, is less than described frustoconic shape rear end diameter.
On described inlet valve seat, be provided with the outlet valve between described Spool assembly gas circuit and ambient atmosphere.
Described inlet valve seat, delivery valve seat and Spool assembly all adopt the sealing of O type circle.
On described spring spool, be also set with packing ring, this packing ring is between described outer spring and described straight pin.
The relief opening of described step-down exhaust passage is surrounded jointly by dust ring and delivery valve seat, at this relief opening, is provided with for dustproof dust protection rubber sheet.
Good effect of the present invention is:
Under original state, electromagnetic coil no electric circuit.Spool assembly has with the inner side end of inlet valve seat and delivery valve seat the displacement distance equating, all precompression of inner spring and outer spring.The gas-entered passageway of inlet valve seat and the outlet passageway of delivery valve seat are opening state, and the step-down exhaust passage of delivery valve seat is sealed under the effect of valve rod, and this is pressure-increasning state.
Electromagnetic coil arranges two operating currents, when the logical little electric current of electromagnetic coil, whole spool outer round surface produces influence electricity magnetic force, under the driving of electromagnetic force, valve core integral body moves to inlet valve seat direction, the gas-entered passageway gas flow of inlet valve seat reduces, until the intake valve port of inlet valve seat gas-entered passageway is closed completely.But under the preloading spring power effect due to inner spring, valve rod front end does not depart from the pressure release valve port of delivery valve seat step-down exhaust passage, the pressure release valve port of delivery valve seat step-down exhaust passage is still in closed condition, the intake valve port at spool two ends and pressure release valve port be all in closed condition, i.e. packing state.
In improving electromagnetic coil after size of current, electromagnetic force increases, now the valve core in Spool assembly continues to move to inlet valve seat direction, the straight pin compression outer spring on valve core, and making the gap between valve core and inlet valve seat is zero, and inner spring returns to initial compressed state, pressure release valve port is opened, outlet passageway and step-down exhaust passage are communicated with, and carry out exhaust, and the pressure drop in Spool assembly is to identical with external atmosphere pressure, thereby realize step-down, be step-down state (exhaust condition).
After electromagnetic coil power-off, Spool assembly returns to original state, keeps the valve port of inlet valve seat to open, and the valve port of delivery valve seat is closed.
To sum up by normally open solenoid valve and normally closed solenoid valve function synthesized to spool, use same electromagnetic coil, realize to control the function of the boosting of brake gas circuit, maintenance and step-down, spool adopts dual spring design, make solenoid valve volume minor structure compact, also save production cost simultaneously.
Electromagnetic coil adopts two kinds of big or small Current Control, makes to control more simple.
In the course of the work, if the pressure in Spool assembly is excessive, by outlet valve, carry out exhaust pressure relief, make modulating valve work have the set pressure numerical value of a maximum, use safety.
Packing ring between outer spring and straight pin makes outer spring stressed evenly, and working stability is reliable.
Dust protection rubber sheet can prevent that extraneous dust etc. from entering in spool.
Accompanying drawing explanation
Fig. 1 is existing air pressure ABS modulating valve working principle schematic diagram;
Fig. 2 is air pressure ABS modulating valve overall structure schematic diagram of the present invention;
Fig. 3 is the structural representation of Spool assembly.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
As shown in Figure 2, air pressure ABS modulating valve, comprise frame 5, these frame 5 inside are provided with inlet valve seat 1 and delivery valve seat 9, described inlet valve seat 1 is installed and is equipped with gas-entered passageway, described delivery valve seat 9 is provided with outlet passageway and step-down exhaust passage, between described inlet valve seat 1 and delivery valve seat 9, Spool assembly 4 is installed, and the gas-entered passageway of described inlet valve seat 1 is communicated with the outlet passageway of described delivery valve seat 9 by the gas circuit of Spool assembly 4;
As shown in Figure 3, Spool assembly 4 comprises valve core 12 and is sleeved on the electromagnetic coil 2 on this valve core 12, the straight pin 19 that central shaft with this valve core 12 intersects vertically is installed on these valve core 12 inwalls, at these valve core 12 inner chambers, spring spool 17 is installed, this spring spool 17 is between described inlet valve seat 1 and straight pin 19, described spring spool 17 front ends are provided with for blocking or open the occluding body 20 of described intake valve port 21, in the position near described inlet valve seat 1 intake valve port 21, be installed with guide ring 14, the front portion of described spring spool 17 is through this guide ring 14, between this guide ring 14 and described straight pin 19, be provided with the outer spring 16 being sleeved on described spring spool 17, these outer spring 16 precompression,
The interior installation sleeve of described spring spool 17 is equipped with the valve rod 18 of inner spring 15, on this valve rod 18, be provided with the via hole 23 that described straight pin 19 passes, the diameter of this via hole 23 is greater than the diameter of described straight pin 19, the front end of described valve rod 18 is for blocking or open the pressure release valve port 22 of described delivery valve seat 9, described inner spring 15 precompression.
Under original state, electromagnetic coil no electric circuit.Spool assembly 4 has with the inner side end of inlet valve seat and delivery valve seat the displacement distance equating, all precompression of inner spring and outer spring.The outlet passageway of the gas-entered passageway of inlet valve seat 1 and delivery valve seat 9 is opening state, and the step-down exhaust passage of delivery valve seat 9 is sealed under the effect of valve rod 18, and this is pressure-increasning state.
Electromagnetic coil arranges two operating currents, when the logical little electric current of electromagnetic coil, whole spool outer round surface produces influence electricity magnetic force, under the driving of electromagnetic force, valve core 12 integral body move to inlet valve seat 1 direction, the gas-entered passageway gas flow of inlet valve seat 1 reduces, until the intake valve port of inlet valve seat 1 gas-entered passageway is closed completely.But under the preloading spring power effect due to inner spring, valve rod front end does not depart from the pressure release valve port of delivery valve seat 9 step-down exhaust passages, the pressure release valve port of delivery valve seat 9 step-down exhaust passages is still in closed condition, the intake valve port at spool two ends and pressure release valve port be all in closed condition, i.e. packing state.
In improving electromagnetic coil after size of current, electromagnetic force increases, now the valve core in Spool assembly continues to move to inlet valve seat 1 direction, straight pin compression outer spring on valve core, making the gap between valve core and inlet valve seat 1 is zero, and inner spring returns to initial compressed state, pressure release valve port is opened, outlet passageway and step-down exhaust passage are communicated with, carry out exhaust, pressure drop in Spool assembly 4 is to identical with external atmosphere pressure, thereby realize step-down, be step-down state (exhaust condition).
After electromagnetic coil power-off, Spool assembly 4 returns to original state, keeps the valve port of inlet valve seat 1 to open, and the valve port of delivery valve seat 9 is closed.
To sum up by normally open solenoid valve and normally closed solenoid valve function synthesized to spool, use same electromagnetic coil, realize to control the function of the boosting of brake gas circuit, maintenance and step-down, spool adopts dual spring design, make solenoid valve volume minor structure compact, also save production cost simultaneously.
Electromagnetic coil adopts two kinds of big or small Current Control, makes to control more simple.
Occluding body 20 is a steel ball, the diameter of this steel ball is greater than the diameter of described intake valve port 21, valve rod 18 front ends are frustoconic shape, the diameter of described pressure release valve port 22 is greater than described frustoconic shape point diameter, be less than described frustoconic shape rear end diameter, whole Spool assembly 4 is all to adopt metallic material to make, and in spring spool 17 and the reciprocal motion of valve rod 18 are clashed into, can not be damaged, and is beneficial to permanent use.
On inlet valve seat 1, be provided with the outlet valve 3 between described Spool assembly 4 gas circuits and ambient atmosphere.The effect of outlet valve 3 is in the course of the work, if the pressure in Spool assembly 4 is excessive, by outlet valve 3, carries out exhaust pressure relief, makes modulating valve use safety.
Described inlet valve seat 1, delivery valve seat 9 all adopt 10 sealings of O type circle with Spool assembly 4.
Packing ring 13 between outer spring 16 and straight pin 19 makes outer spring stressed evenly, and working stability is reliable.
The relief opening of described step-down exhaust passage with surrounding, is provided with dust protection rubber sheet 7 at this relief opening by dust ring 6 delivery valve seats 9, and this sheet rubber 7 can prevent that extraneous dust etc. from entering in spool.
The above embodiment of the present invention is to be only explanation example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make on the basis of the above description other multi-form variation and changes.Here cannot give all mode of executions exhaustive.Every still row in protection scope of the present invention of apparent variation that technological scheme of the present invention amplifies out or change that belong to.
Claims (7)
1. air pressure ABS modulating valve, it is characterized in that, comprise frame (5), this frame (5) inside is provided with inlet valve seat (1) and delivery valve seat (9), described inlet valve seat (1) is provided with gas-entered passageway, described delivery valve seat (9) is provided with outlet passageway and step-down exhaust passage, between described inlet valve seat (1) and delivery valve seat (9), Spool assembly (4) is installed, the gas-entered passageway of described inlet valve seat (1) is communicated with the outlet passageway of described delivery valve seat (9) by the gas circuit of Spool assembly (4);
Described Spool assembly (4) comprises valve core (12) and is sleeved on the electromagnetic coil (2) on this valve core (12), the straight pin (19) that central shaft with this valve core (12) intersects vertically is installed on this valve core (12) inwall, at this valve core (12) inner chamber, spring spool (17) is installed, this spring spool (17) is positioned between described inlet valve seat (1) and straight pin (19), described spring spool (17) left end is provided with the occluding body (20) of the intake valve port (21) for blocking or open described inlet valve seat (1), position at the intake valve port (21) near described inlet valve seat (1) is installed with guide ring (14), the front portion of described spring spool (17) is through this guide ring (14), between this guide ring (14) and described straight pin (19), be provided with the outer spring (16) being sleeved on described spring spool (17), this outer spring (16) precompression,
The interior installation sleeve of described spring spool (17) is equipped with the valve rod (18) of inner spring (15), on this valve rod (18), be provided with the via hole (23) that described straight pin (19) passes, the diameter of this via hole (23) is greater than the diameter of described straight pin (19), the right-hand member of described valve rod (18) is used for blocking or opening the pressure release valve port (22) of described delivery valve seat (9), described inner spring (15) precompression.
2. air pressure ABS modulating valve according to claim 1, is characterized in that, described occluding body (20) is a steel ball, and the diameter of this steel ball is greater than the diameter of described intake valve port (21).
3. air pressure ABS modulating valve according to claim 1, is characterized in that, described valve rod (18) front end is frustoconic shape, and the diameter of described pressure release valve port (22) is greater than described frustoconic shape point diameter, is less than described frustoconic shape rear end diameter.
4. air pressure ABS modulating valve according to claim 1 and 2, is characterized in that, is provided with the outlet valve (3) being positioned between described Spool assembly (4) gas circuit and ambient atmosphere on described inlet valve seat (1).
5. air pressure ABS modulating valve according to claim 4, is characterized in that, described inlet valve seat (1), delivery valve seat (9) all adopt O type circle (10) sealing with Spool assembly (4).
6. air pressure ABS modulating valve according to claim 1, is characterized in that, is also set with packing ring (13) on described spring spool (17), and this packing ring (13) is positioned between described outer spring (16) and described straight pin (19).
7. air pressure ABS modulating valve according to claim 1, is characterized in that, the relief opening of described step-down exhaust passage is surrounded jointly by dust ring (6) and delivery valve seat (9), at this relief opening, is provided with for dustproof dust protection rubber sheet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518970.1A CN102943902B (en) | 2012-12-06 | 2012-12-06 | Air pressure anti-lock braking system (ABS) regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518970.1A CN102943902B (en) | 2012-12-06 | 2012-12-06 | Air pressure anti-lock braking system (ABS) regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN102943902A CN102943902A (en) | 2013-02-27 |
| CN102943902B true CN102943902B (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210518970.1A Active CN102943902B (en) | 2012-12-06 | 2012-12-06 | Air pressure anti-lock braking system (ABS) regulating valve |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500818B (en) * | 2014-12-26 | 2017-01-25 | 西安航天远征流体控制股份有限公司 | Balance type electromagnetic valve with mechanical valve position indicator and manual operating device |
| CN109780271A (en) * | 2019-03-06 | 2019-05-21 | 上海舒井汽车系统科技有限公司 | A kind of M/W shape memory alloy wire control air valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096222Y (en) * | 2007-10-16 | 2008-08-06 | 万向集团公司 | ABS normally closed solenoid valve structure |
| CN201326805Y (en) * | 2008-12-17 | 2009-10-14 | 中国航天科技集团公司第六研究院第十一研究所 | Normally-open solenoid valve used in anti-lock braking system of automobile |
| CN202215826U (en) * | 2011-09-13 | 2012-05-09 | 罗达莱克斯阀门(上海)有限公司 | Pilot-operated type, large-flow and low-power dedicated electromagnetic valve for high pressure gases |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100465811B1 (en) * | 2002-04-24 | 2005-01-13 | 현대모비스 주식회사 | Anti-Lock Brake Equipment Solenoid Valve |
| JP4235515B2 (en) * | 2003-09-12 | 2009-03-11 | 株式会社テージーケー | Constant differential pressure valve |
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2012
- 2012-12-06 CN CN201210518970.1A patent/CN102943902B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096222Y (en) * | 2007-10-16 | 2008-08-06 | 万向集团公司 | ABS normally closed solenoid valve structure |
| CN201326805Y (en) * | 2008-12-17 | 2009-10-14 | 中国航天科技集团公司第六研究院第十一研究所 | Normally-open solenoid valve used in anti-lock braking system of automobile |
| CN202215826U (en) * | 2011-09-13 | 2012-05-09 | 罗达莱克斯阀门(上海)有限公司 | Pilot-operated type, large-flow and low-power dedicated electromagnetic valve for high pressure gases |
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| CN102943902A (en) | 2013-02-27 |
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