CN206141528U - A distribution valve for controlling volume room is aerifyd and is alleviated position and braking position conversion - Google Patents
A distribution valve for controlling volume room is aerifyd and is alleviated position and braking position conversion Download PDFInfo
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- CN206141528U CN206141528U CN201621228451.1U CN201621228451U CN206141528U CN 206141528 U CN206141528 U CN 206141528U CN 201621228451 U CN201621228451 U CN 201621228451U CN 206141528 U CN206141528 U CN 206141528U
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- main valve
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Abstract
The utility model discloses a distribution valve for controlling volume room is aerifyd and is alleviated position and braking position conversion, including valve body set one -tenth be provided with the main valve cover in valve body set becomes and cup joint the master control cover in the main valve cover, the main valve cover becomes fixed connection with valve body set, the master control cover reciprocates for the main valve cover under the control of valve body set one -tenth inner piston pole the main valve is sheathe in to be provided with and is aerifyd route R1c with the volume room exhaust channel R1p and the volume room of volume room R1 intercommunication respectively. The utility model discloses be divided into two volume room route, sheathe the volume room exhaust channel and the volume room that set up respectively with volume room intercommunication in at the main valve and aerify the route to cut off, cut apart, communicate corresponding route at cylindric main valve cover with rubber seal between the master control cover through installing, and replaced the sealed knot in the metal plane of former guiding valve, graduating valve and slide valve seat, the expert, disconnected and sealed that has realized each route, aerifing, exhausting of messenger's volume room is controllable in order, can not be disorderly.
Description
Technical field
This utility model belongs to rail transit rolling stock air damping distributing valve technical field, more particularly to a kind of to use
Alleviate the distributing valve of position and retarder location conversion in control chamber volume inflation.
Background technology
At present, the main control mechanism in rail transit rolling stock air damping distributing valve is guiding valve, graduating valve and cunning
Valve seat, by the relative movement of guiding valve and graduating valve, and using the metal flat sealing knot between guiding valve, graduating valve and slide valve seat
Structure realizing each path is interconnected on slide valve seat, guiding valve and graduating valve control, so as to realize the braking of distributing valve, alleviation,
The effect propeties such as pressurize.
In the structure of existing distributing valve, chamber volume inflation alleviates position with the conversion of retarder location to be arranged by slide valve seat
One path is with the charge, exhaust path arranged on guiding valve corresponding respectively to be connected to realize, and in actual use, due to guiding valve
On charge, exhaust path very close to, and between slide valve seat and guiding valve using metal flat sealing structure, therefore, charge, exhaust
Easily there is the phenomenon for leaking in metallic sealing section between path, so as to affect normal inflation, the degassing function of chamber volume.
Utility model content
Goal of the invention of the present utility model is：For above-mentioned problem, there is provided a kind of to make filling for chamber volume
Gas, aerofluxuss are controllable in order, and the distribution for controlling chamber volume inflation alleviation position and retarder location conversion of stable and reliable operation
Valve.
What the technical solution of the utility model was realized in：One kind alleviates position and retarder location for controlling chamber volume inflation
The distributing valve of conversion, including valve body composition, it is characterised in that：Main valve housing is provided with valve body composition and be socketed in master
Master control set in valve pocket, the main valve housing is fixedly connected with valve body composition, and the master control is enclosed within the control that valve body constitutes inner piston rod
Move up and down relative to main valve housing under system, the chamber volume aerofluxuss for connecting with chamber volume R1 respectively are provided with the main valve housing and are led to
Road R1p and chamber volume gas fill port R1c, the chamber volume exhaust channel R1p puts the chamber volume aerofluxuss of setting by master control
Annular groove D2 is connected with the exhaust channel D1 on main valve housing, and chamber volume gas fill port R1c puts the volume of setting by master control
Room gasing ring groove G4 is connected with the gas fill port G3 one end inside master control set, and the gas fill port G3 other end is interior with piston rod
Portion's communication, lower chamber G1 of the internal path and valve body composition inner carrier composition of the piston rod is connected, the piston
Lower chamber G1 of composition is connected with work reservoir, and between the main valve housing and master control set rubber seal is provided with, described
Rubber seal is separately positioned on chamber volume aerofluxuss annular groove D2 tops, chamber volume gasing ring groove G4 lower sections and chamber volume air exhaust loop
It is described when distributing valve alleviates position in inflation by moving up and down that master control covers between groove D2 and chamber volume gasing ring groove G4
Chamber volume exhaust channel R1p is opened and chamber volume gas fill port R1c is closed, when distributing valve is in retarder location, the chamber volume
Gas fill port R1c is opened and chamber volume exhaust channel R1p is closed.
It is described in the utility model for controlling the distributing valve that the conversion of position and retarder location is alleviated in chamber volume inflation, it is from filling
During gas alleviation position switches to retarder location, the master control puts corresponding rubber seal and first closes chamber volume exhaust channel
After R1p, then chamber volume gas fill port R1c is opened by corresponding rubber seal；Cut position is alleviated from retarder location to inflation
During changing, the master control puts corresponding rubber seal and first closes after chamber volume gas fill port R1c, then by corresponding
Rubber seal opens chamber volume exhaust channel R1p.
This utility model is divided into two in chamber volume path, and the chamber volume connected with chamber volume is respectively provided with main valve housing
Exhaust channel and chamber volume gas fill port, and by the rubber seal between columned main valve housing and master control set
To separate, split, connect respective channels, and the metal flat sealing knot of former guiding valve, graduating valve and slide valve seat is instead of, realized
The switching and sealing of each path, makes the inflation of chamber volume, aerofluxuss controllable in order, will not be disorderly, not only substantially increases distributing valve
Function reliability, effectively extend the repair and maintenance cycle of distributing valve, and manufacturing process is simple, it is low to operator's skill set requirements,
Labor intensity is little.
Description of the drawings
Fig. 1 is structural representation of this utility model when position is alleviated in inflation.
Fig. 2 is the internal enlarged drawing of valve body composition in Fig. 1.
Fig. 3 is structural representation of this utility model in retarder location.
Fig. 4 is the internal enlarged drawing of valve body composition in Fig. 3.
Labelling in figure：1 is valve body composition, and 2 is main valve housing, and 3 is master control set, and 4 is piston rod, and 4a leads to for the inside of piston rod
Road, 5 are piston composition, and 6 is rubber seal, and 7 is master control inner sleeve, and 8 is stabiliser bar, and 9 is graduating set.
Specific embodiment
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain
This utility model, is not used to limit this utility model.
As Figure 1-4, it is a kind of to alleviate the distributing valve that position is changed with retarder location, including valve body for controlling chamber volume inflation
Composition 1, in the interior master control set 3 for being provided with main valve housing 2 and being socketed in main valve housing 2 of valve body composition 1, the main valve housing 2
It is fixedly connected with valve body composition 1, the master control set 3 is in the case where valve body constitutes the control of 1 inner piston rod 4 relative to main valve housing about 2
It is mobile, the chamber volume exhaust channel R1p and chamber volume inflation for connecting with chamber volume R1 respectively is provided with the main valve housing 2
On the chamber volume aerofluxuss annular groove D2 and main valve housing 2 of path R1c, the chamber volume exhaust channel R1p by setting on master control set 3
Exhaust channel D1 is connected, chamber volume gasing ring groove G4 and master control of chamber volume gas fill port R1c by setting on master control set 3
Gas fill port G3 one end connection inside set 3, the gas fill port G3 other end is connected with internal path 4a of piston rod 4, institute
Internal path 4a and valve body for stating piston rod 4 constitutes lower chamber G1 of 1 inner carrier composition 5 and connects, under the piston composition 5
Portion chamber G1 is connected with work reservoir, and between the main valve housing 2 and master control set 3 rubber seal 6 is provided with, and the rubber is close
Seal 6 is separately positioned on chamber volume aerofluxuss annular groove D2 tops, chamber volume gasing ring groove G4 lower sections and chamber volume aerofluxuss annular groove D2
Between chamber volume gasing ring groove G4, by moving up and down for master control set 3, when distributing valve alleviates position in inflation, the appearance
Product room exhaust channel R1p is opened and chamber volume gas fill port R1c is closed, and when distributing valve is in retarder location, the chamber volume is filled
Gas path R1c is opened and chamber volume exhaust channel R1p is closed.
Wherein, during from inflation alleviation position to retarder location switching, corresponding rubber seal on the master control set 3
6 first close after chamber volume exhaust channel R1p, then are opened chamber volume gas fill port R1c by corresponding rubber seal 6；
During alleviating position switching to inflation from retarder location, corresponding rubber seal 6 is first closed chamber volume and is filled on the master control set 3
After gas path R1c, then chamber volume exhaust channel R1p is opened by corresponding rubber seal 6.
Operation principle of the present utility model is：
As illustrated in fig. 1 and 2, it is schematic diagram of this utility model in inflation alleviation position.
A, just inflation.
When Train line charging, pressure air Jing train pipes, arm wait until this distributing valve, then, there is Jing paths L1 all the way
5 upper chamber is constituted to piston, piston composition 5 is moved down, and piston composition 5 drives master control inner sleeve 7 while passing through by piston rod 4
Shoulder promotes master control set 3 to move down together on piston rod 4, until till main valve body is encountered in 5 lower ends of piston composition.At this moment, piston set
Alleviate position in inflation into 5, piston rod 4, master control inner sleeve 7, master control set 3.Train tube pressure air is distinguished through different paths
To reservoirs such as work reservoir, auxiliary reservoirs（Room）Inflation, makes the reservoirs such as work reservoir, auxiliary reservoir（Room）It is charged to level pressure（Such as 500kPa
Or 600kPa）, it is used for deceleration or stopping brake during train operation.
Work reservoir inflation：Train tube pressure air → L2 → main valve housing correspondence path → master control set L8 → master control set G2 →
Lower chamber G1 → work the reservoir of piston composition.
Auxiliary reservoir is inflated：Train tube pressure air → charging portion（By the control of work reservoir）→ auxiliary reservoir.
What relaying encapsulating valve upside F2 and the auxiliary reservoir of relay was always connected, auxiliary reservoir pressure air is in relaying encapsulating
Upside is waited, and is that next step braking action is got ready.
Train tube pressure air → L4 → main valve housing correspondence path → master control set L5 → master control set L6, when being to brake next time
Play first stage local reduction to get ready.
B, reinflated and alleviation.
Train pipe passes through decompression, after being braked train, when again to Train line charging, and due to train pipe supercharging,
Destroy piston and constitute pressure balance of 5 both sides in service lap, when the pressure difference that piston constitutes 5 both sides produce to
It is living when lower active force and piston constitute 5 gravity sums and exceeded master control and put the frictional resistance of rubber seal and main valve inner room
The drive master control inner sleeve of plug composition 5, master control set move down into together inflation and alleviate position.At this moment, work the reservoirs such as reservoir, auxiliary reservoir（Room）
Obtain reinflated, chamber volume and brake cylinder exhaust（Alleviate）, brake is in relieved state.
All paths when above-mentioned " just inflating ", also all have when reinflated.
Chamber volume is alleviated：Chamber volume pressure air → R1 → main valve housing R1p → master control set D2 → D1 → air.
Relay relays the pressure air → R3 → valve body internal passage → chamber volume → R1 → main valve housing R1p of piston cavity of resorption
→ master control covers D2 → D1 → air.
Because this valve is two pressure equalizing system valve, so chamber volume is once drained together with the pressure air of relaying piston cavity of resorption,
Their pressure drops to zero.
Checking cylinder is alleviated：The logical checking cylinders of relaying piston upper chamber Z3, cavity of resorption R3 leads to chamber volume.Because chamber volume is alleviated, destruction
The original pressure balances in relaying piston both sides, brake-cylinder pressure moves down relaying piston, relay the upper end of piston rod from
Relaying encapsulating valve is driven, then brake-cylinder pressure air → valve body internal passage → Z1 → relaying piston rod D4 → D3 → air.System
Dynamic cylinder pressure enters air, and brake forms relieved state.Meanwhile, relay piston upper chamber Z3 pressure air by shrinkage cavity C2 with
And the pressure air Jing Z1 → relaying piston rod D4 → D3 → air in the lump of relaying encapsulating valve epicoele Z2.
As can be seen here, checking cylinder pressure is controlled by volume chamber pressure.Because volume chamber pressure is once alleviated to zero, therefore braking
Cylinder pressure is also correspondingly once alleviated to zero, and brake obtains complete incidence graph.
As shown in Figures 3 and 4, it is schematic diagram of this utility model in retarder location.
After first stage local reduction, 5 pressure at both sides difference is anxious to be increased to promote piston to constitute, and then piston composition 5 passes through piston
Bar 4, stabiliser bar 8, graduating 9 promote master control set to overcome the frictional resistance between main valve housing, move up further to retarder location.Due to
Master control set 3 there occurs change with the relative position of main valve housing 2, and the Ju2 holes on master control set 3 are staggered with Ju1 holes, therefore have cut off row
Car pipe subtracts the path of room with office, and first stage local reduction's effect terminates.Meanwhile, master control set 3 on a some holes respectively with main valve
Corresponding aperture connection on set 2, defines following path, further produces braking action.
A, train tube pressure air → L4 → main valve housing correspondence path → master control set L5 → master control set L3 → valve inner is dark
Road → office subtracts restriction valve（Opening）→ checking cylinder.So, make each vehicle by this valve of this car by a part of train pipe pressure
The office that power air Jing is opened subtracts restriction valve and introduces checking cylinder, here it is the effect of second stage local reduction.
When checking cylinder pressure increases to 50～70kPa, the office of making subtracts restriction valve and closes, and this path is cut off, second stage
Local reduction's effect stops.Even if the effect stopping of second stage local reduction can ensure the little decompression amount of last vehicle of train vehicle train pipe
When also have certain brake force.
B, chamber volume inflation：Work reservoir pressure air → G1 → G3 → G4 → R1c → R1 → chamber volume.
C, checking cylinder inflation：Chamber volume is connected always with relaying piston cavity of resorption, so chamber volume pressure air → valve
In vivo portion's secret tunnel → R3, promotes and is moved on relaying piston, relaying piston rod, and relaying piston rod backs down relaying encapsulating valve.
The relaying encapsulating valve → Z1 → valve inner secret tunnel → checking cylinder of auxiliary reservoir pressure air → F2 → back down.Then,
Checking cylinder pressure continues to increase.Meanwhile, brake-cylinder pressure air enters all the way relaying encapsulating valve upside Z2, and another path contracting is stifled
C2 enters relaying piston upper chamber.The effect of the stifled C2 of contracting makes the boosting of relaying piston upper chamber synchronous with checking cylinder boosting.
Substantially occur simultaneously to the aeration of chamber volume with work reservoir because second stage local reduction acts on
, i.e., train tube pressure air is entered after checking cylinder, and and then, auxiliary reservoir pressure air also begins to enter checking cylinder, so
Initial 50～the 70kPa of pressure of checking cylinder is, from pressure air of both train pipe and auxiliary reservoir, and to reach this pressure
After strong, office subtracts restriction valve and closes, and then train pipe stops being inflated to checking cylinder, and only auxiliary reservoir is inflated to checking cylinder, as
Checking cylinder continues to inflate, and rises to great pressure, also relevant with the train pipe pressure reduction size of driver control.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit this utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (2)
1. it is a kind of to alleviate the distributing valve that position is changed with retarder location, including valve body composition for controlling chamber volume inflation（1）, its feature
It is：In valve body composition（1）Inside it is provided with main valve housing（2）And it is socketed in main valve housing（2）Interior master control set（3）, it is described
Main valve housing（2）With valve body composition（1）It is fixedly connected, the master control set（3）In valve body composition（1）Inner piston rod（4）Control under
Relative to main valve housing（2）Move up and down, in the main valve housing（2）On be provided with the chamber volume aerofluxuss for connecting with chamber volume R1 respectively
Path R1p and chamber volume gas fill port R1c, the chamber volume exhaust channel R1p passes through master control set（3）The chamber volume of upper setting
Aerofluxuss annular groove D2 and main valve housing（2）On exhaust channel D1 connection, chamber volume gas fill port R1c pass through master control set（3）On
The chamber volume gasing ring groove G4 of setting and master control set（3）Internal gas fill port G3 one end connection, gas fill port G3 is another
End and piston rod（4）Internal path（4a）Connection, the piston rod（4）Internal path（4a）With valve body composition（1）Interior work
Plug composition（5）The connection of lower chamber G1, piston composition（5）Lower chamber G1 with work reservoir connect, in the master
Valve pocket（2）With master control set（3）Between be provided with rubber seal（6）, the rubber seal（6）It is separately positioned on chamber volume row
Between compression D2 tops, chamber volume gasing ring groove G4 lower sections and chamber volume aerofluxuss annular groove D2 and chamber volume gasing ring groove G4,
By master control set（3）Move up and down, when distributing valve alleviates position in inflation, the chamber volume exhaust channel R1p open and
Chamber volume gas fill port R1c is closed, and when distributing valve is in retarder location, chamber volume gas fill port R1c is opened and chamber volume
Exhaust channel R1p is closed.
2. it is according to claim 1 to alleviate the distributing valve that position is changed with retarder location, its feature for controlling chamber volume inflation
It is：During from inflation alleviation position to retarder location switching, the master control set（3）Upper corresponding rubber seal（6）First
After closing chamber volume exhaust channel R1p, then by corresponding rubber seal（6）Chamber volume gas fill port R1c is opened；From
During retarder location alleviates position switching to inflation, the master control set（3）Upper corresponding rubber seal（6）First close chamber volume
After gas fill port R1c, then by corresponding rubber seal（6）Chamber volume exhaust channel R1p is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228451.1U CN206141528U (en) | 2016-11-16 | 2016-11-16 | A distribution valve for controlling volume room is aerifyd and is alleviated position and braking position conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228451.1U CN206141528U (en) | 2016-11-16 | 2016-11-16 | A distribution valve for controlling volume room is aerifyd and is alleviated position and braking position conversion |
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| Publication Number | Publication Date |
|---|---|
| CN206141528U true CN206141528U (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621228451.1U Active CN206141528U (en) | 2016-11-16 | 2016-11-16 | A distribution valve for controlling volume room is aerifyd and is alleviated position and braking position conversion |
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| CN (1) | CN206141528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347340A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Distribution valve used for controlling conversion of air inflation release position and brake position in volume room |
| CN111071288A (en) * | 2019-12-27 | 2020-04-28 | 中车长江车辆有限公司 | Railway parking brake control valve |
-
2016
- 2016-11-16 CN CN201621228451.1U patent/CN206141528U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347340A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Distribution valve used for controlling conversion of air inflation release position and brake position in volume room |
| CN111071288A (en) * | 2019-12-27 | 2020-04-28 | 中车长江车辆有限公司 | Railway parking brake control valve |
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