CN208919453U - A kind of regulating valve diaphragm unit used for rail vehicle and regulating valve - Google Patents
A kind of regulating valve diaphragm unit used for rail vehicle and regulating valve Download PDFInfo
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- CN208919453U CN208919453U CN201821549862.XU CN201821549862U CN208919453U CN 208919453 U CN208919453 U CN 208919453U CN 201821549862 U CN201821549862 U CN 201821549862U CN 208919453 U CN208919453 U CN 208919453U
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- diaphragm
- regulating valve
- rail vehicle
- diaphragm unit
- unit used
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Abstract
The utility model discloses a kind of regulating valve diaphragm unit used for rail vehicle and regulating valve, is related to regulating valve technical field.The diaphragm unit includes diaphragm, and the diaphragm is disc-shaped, and the diaphragm is made of low temperature resistant silicon rubber, and the diaphragm is equipped with annular protrusion close to edge.Diaphragm in diaphragm unit is made of low temperature resistant silicon rubber, and the low temperature resistant temperature of diaphragm is down to -50 DEG C, improves the resistance to low temperature of diaphragm unit, and annular protrusion is arranged close to edge in diaphragm, guarantees the sealing effect of diaphragm unit under cryogenic.
Description
Technical field
The utility model relates to regulating valve technical fields, and in particular to a kind of regulating valve diaphragm unit used for rail vehicle and tune
Save valve.
Background technique
Regulating valve is mainly used on railway locomotive, and effect is that higher air pressure is adjusted to requirement
Pressure, and the pressure after reconciling is kept to stablize, to guarantee that pneumatic actuator normally works by regulated procedure, adjust
Valve can control the opening of throttle orifice, during the work time dynamic voltage adjustment.Diaphragm unit is needed as the significant components in regulating valve
High leakproofness, and diaphragm unit is mostly nitrile rubber in regulating valve at present, resistance to low temperature is poor, causes diaphragm unit low
Temperature state seal performance is not high, regulating valve low temperature high failure rate.
In view of the above drawbacks, the utility model creator obtains originally practical new finally by prolonged research and practice
Type.
Utility model content
To solve above-mentioned technological deficiency, the technical solution adopted in the utility model is, provides a kind of tune used for rail vehicle
Valve film component is saved, the diaphragm unit includes diaphragm, and the diaphragm is disc-shaped, and the diaphragm uses low temperature resistant silicon rubber system
At the diaphragm is equipped with annular protrusion close to edge, and the annular protrusion and the diaphragm are concentric.
Preferably, the annular protrusion is an integral structure with the diaphragm.
Preferably, the diaphragm unit further includes film core assembly, the diaphragm has a centre bore, and the film core assembly is worn
Cross the centre bore.
Preferably, the film core assembly includes diaphragm support and film core, a through-hole, institute are equipped at the diaphragm support center
Film core is stated across the through-hole, the diaphragm support is made of low temperature resistant silicon rubber.
Preferably, the diaphragm support side wall be equipped with card slot, the bayonet slot ring around the diaphragm support lateral wall one week,
The edge of the diaphragm towards the centre bore is clamped to the card slot.
Preferably, the diaphragm and the diaphragm support are interference fitted.
Preferably, the film core is made of aluminum alloy materials, the diaphragm support and the film core are interference fitted.
Preferably, the thickness of the diaphragm is within the scope of 0.43-0.47mm.
Preferably, the side of the diaphragm is equipped with pressing plate, the edge setting chamfering or fillet of the pressing plate.
Preferably, a kind of regulating valve, the regulating valve includes any of the above-described adjusting valve film group used for rail vehicle
Part.
Compared with the prior art the utility model has the beneficial effects that:
1, regulating valve diaphragm unit used for rail vehicle provided by the utility model, the diaphragm in diaphragm unit is using low temperature resistant
Silicon rubber is made, and the low temperature resistant temperature of diaphragm is down to -50 DEG C, the resistance to low temperature of diaphragm unit is improved, guarantees in low temperature
Under the conditions of diaphragm unit sealing effect.
2, convex annular is arranged close to edge in diaphragm in regulating valve diaphragm unit used for rail vehicle provided by the utility model
It rises, enhances the sealing effect of diaphragm.
3, regulating valve diaphragm unit used for rail vehicle provided by the utility model will be arranged at the platen edge of diaphragm unit
Chamfering or fillet, processing is more convenient, prevents diaphragm unit pressing plate during elastic deformation from generating to diaphragm or other component
Damage.
Detailed description of the invention
It, below will be to institute in embodiment description in order to illustrate more clearly of the technical solution in various embodiments of the utility model
Attached drawing to be used is needed to be briefly described.
Fig. 1 is the diaphragm schematic diagram of the utility model；
Fig. 2 is the regulating valve cross-sectional view of the utility model；
Fig. 3 is the mold core modular construction cross-sectional view of the utility model；
Fig. 4 is the centre bore schematic diagram of the utility model；
Fig. 5 is the pressing plate schematic diagram of the utility model；
Fig. 6 is the mold core modular construction cross-sectional view that the utility model is equipped with pressing plate；
Fig. 7 is the regulating valve side view of the utility model.
Description of symbols:
1- upper valve body component, 2- pressure spring, 3- diaphragm unit, 31- diaphragm, 311- annular protrusion, 312- centre bore,
32- mold core component, 321- diaphragm support, 3211- card slot, 322- film core, 33- pressing plate, the first briquetting of 331-, 332- second are pressed
Block, 4- core assembly, 5- lower valve body component, 6- handwheel, 7- mounting plate, 8- pressure gauge, 9- spring base.
Specific embodiment
Below in conjunction with attached drawing, the above and other technical features and advantages of the present invention are described in more detail.
Embodiment 1
A kind of regulating valve diaphragm unit used for rail vehicle, referring to Fig.1 shown in-Fig. 2, diaphragm unit 3 is arranged in upper valve body group
Between part 1 and lower valve body component 5, specifically, the upper end of diaphragm unit 3 connects pressure spring 2, the lower end connection of diaphragm unit 3
Core assembly 4, diaphragm unit 3 carry out isolating seal to upper valve body component 1 and lower valve body component 5, and diaphragm unit 3 includes diaphragm
31, diaphragm 31 is disc-shaped, and the diaphragm 31 of disc-shaped is made of low temperature resistant silicon rubber, and low temperature resistant temperature is reduced to -50 DEG C,
The resistance to low temperature for improving diaphragm unit guarantees the sealing effect in diaphragm unit under cryogenic.Diaphragm 31 has bullet
Property, can deformation occurs in above-below direction to adjust the air pressure of efferent duct or hydraulic.
The edge of diaphragm 31 is located between 5 junction of upper valve body component 1 and lower valve body component, and diaphragm 31 plays sealing and makees
With being equipped with annular protrusion 311 close to edge in diaphragm 31, the downside of diaphragm 31 is arranged in annular protrusion 311 in the present embodiment
On face, the setting of annular protrusion 311 in diaphragm 31 close to edge, but not limited to this face may also be arranged on the upper side of diaphragm 31,
Or the top and bottom of diaphragm 31 are respectively provided with annular protrusion 311, annular protrusion 311 is an integral structure with diaphragm 31, preferably,
Annular protrusion 311 and diaphragm 31 are integrally formed, and annular protrusion 311 is around diaphragm 31 close to the outer ring one week at edge, i.e. convex annular
Rise 311 concentric with diaphragm 31, the setting of annular protrusion 311 increases film in upper valve body component 1 and 5 junction of lower valve body component
The sealing effect and intensity of piece 31.
Preferably, the thickness of diaphragm 31 within the scope of 0.43-0.47, increases 0- on the basis of existing 31 thickness of diaphragm
0.04mm increases the sealing effect of diaphragm 31.
Embodiment 2
On the basis of the above embodiments, in conjunction with shown in Fig. 1-Fig. 3,31 ring set of diaphragm is in film core assembly 32 for the present embodiment
On, mold core component 32 and diaphragm 31 collectively form diaphragm unit 3, and diaphragm 31 has a centre bore 312, and film core assembly 32 passes through
Centre bore 312, mold core component 32 include diaphragm support 321 and film core 322, and diaphragm support 321 is made of low temperature resistant silicon rubber,
Mold core 322 is made of aluminium alloy, and as shown in connection with fig. 4, film core 322 consists of three parts, and top is cylindrical structure, and middle part is
Diameter is less than the cylindrical structure on top, and bottom end is circular platform type structure, and three parts, which are fixedly connected, constitutes film core 322, diaphragm support
There is through-hole, the shape of the through-hole and film core 322 of diaphragm support 321 matches, and film core 322 passes through diaphragm support at 321 center
The through-hole of disk 321, diaphragm support 321 and film core 322 are interference fitted.
In conjunction with shown in Fig. 3 and Fig. 4, the lateral wall of diaphragm support 321 is equipped with a circle card slot 3211, and card slot 3211 is used for
Engage diaphragm 31, the edge of centre bore 312 is inserted into card slot 3211, and diaphragm 31 is fixed in card slot 3211, realizes diaphragm
Pallet 321 is fixedly connected with diaphragm 31, and diaphragm 31 and diaphragm support 321 are interference fitted, and guarantees diaphragm 31 and diaphragm support
Leakproofness between 321.
Embodiment 3
The difference of the present embodiment and above-described embodiment is, in conjunction with shown in Fig. 5-Fig. 6, the side of diaphragm 31 is equipped with pressing plate
33, it shields to diaphragm, pressing plate 33 includes the first pressing plate 331 and the second pressing plate 332, and the second pressing plate 332 is arranged in diaphragm
The upside of the second pressing plate 332 is arranged in 31 upside, the first pressing plate 331, and the second pressing plate 332 is fitted closely with diaphragm 31, and first
It is in sealing contact between pressing plate 331 and the second pressing plate 332, specifically, the first pressing plate 331 and the second pressing plate 332 all have through-hole, and
First pressing plate 331 and the equal ring set of the second pressing plate 332 are in the card slot 3211 of diaphragm support 321, the first pressing plate 331 and the second pressing plate
332 fit closely with diaphragm support 321, improve the leakproofness of diaphragm unit 3.
Preferably, the edge of the first pressing plate 331 and the second pressing plate 332 is provided with chamfering or fillet, makes the first pressure
Plate 331 processed with the second pressing plate 332 it is more convenient, be also prevented from diaphragm unit 3 during elastic deformation pressing plate 33 to diaphragm 31
Or other component generates damage.
Embodiment 4
The present embodiment provides a kind of regulating valves, including diaphragm unit 3 described in any of the above-described embodiment.
Embodiment 5
The present embodiment is on the basis of embodiment 4, in conjunction with shown in Fig. 2 and Fig. 7, the regulating valve of the present embodiment further include: on
Valve component 1, pressure spring 2, core assembly 4, lower valve body component 5, handwheel 6, mounting plate 7, pressure gauge 8, spring base 9, upper valve
Body component 1 connect formation with lower valve body component 5 and adjusts valve body, and adjusting valve body has cavity, in cavity from top to bottom successively
Pressure spring 2, diaphragm unit 3, core assembly 4 and spring base 9 are set, and 2 upper end of pressure spring is equipped with handwheel 6, and 6 ring set of handwheel exists
On the outside of the upper end of upper valve body component 1, rotation handwheel 6 can realize the contraction and stretching of pressure spring 2, and diaphragm unit 3 is arranged upper
The junction of valve component 1 and lower valve body component 5, seals；The left and right ends of lower valve body component 5 are connected separately with installation
Plate 7, two mounting plates 7 and lower valve body component 5 respectively constitute air inlet pipe and escape pipe, and the rear side of lower valve body component 5 is connected with pressure
Power table 8 is equipped with reset spring between core assembly 4 and spring base 9.
The working principle of regulating valve are as follows: rotate clockwise handwheel 6, handwheel 6 compresses pressure spring 2, and pushes diaphragm unit 3
It moves down, diaphragm unit 3 pushes core assembly 4 to move down again, and air intake valve is opened, then admission pressure throttles through air intake valve and drops
Pressure.Feedback hole is equipped between outlet valve and diaphragm unit 3, part output gas flow enters at diaphragm unit 3 through feedback hole,
A upward thrust is generated on diaphragm unit 3, deformation occurs upwards under thrust for diaphragm unit 3, drives core assembly 4
It moves up, reduces outlet valve aperture, output pressure reduces, and negative feedback is played, when upward thrust and pressure spring 2
When spring force balances each other, output pressure is just stable in certain value.
If input pressure fluctuates, if input pressure instantaneously increases, then output pressure is also increased, and makees in negative-feedback
Increased with the thrust on diaphragm unit 3, destroy original dynamic balance state, diaphragm unit 3 moves up, and compresses pressure regulation upwards
Spring 2 has instantaneous overflow from the overflow hole in regulating valve, and moves up core assembly 4 by the effect of reset spring and atmospheric pressure,
Outlet valve aperture reduces, and throttling action increases, and so that output pressure is returned drop, until new balance.
If input pressure is constant, when output flow changes, by pushing away in the overflow effect and diaphragm unit 3 of overflow hole
Movement is used, and diaphragm unit 3 is subjected to displacement upwards, and core assembly 4 moves up, and has remained to pressure stabilization function.
The above is only the preferred embodiment of the present invention, is merely illustrative for the utility model, and
It is unrestricted.Those skilled in the art understand that can be to it in the spirit and scope defined by the utility model claims
Many changes, modifications, and even equivalents are carried out, but all will fall within the protection scope of the utility model.
Claims (10)
1. a kind of regulating valve diaphragm unit used for rail vehicle, which is characterized in that the diaphragm unit includes diaphragm (31), the film
Piece (31) is disc-shaped, and the diaphragm (31) is made of low temperature resistant silicon rubber, and the diaphragm (31) is equipped with ring close to edge
Shape protrusion (311), the annular protrusion (311) and the diaphragm (31) are concentric.
2. regulating valve diaphragm unit used for rail vehicle as described in claim 1, which is characterized in that the annular protrusion (311)
It is an integral structure with the diaphragm (31).
3. regulating valve diaphragm unit used for rail vehicle as described in claim 1, which is characterized in that the diaphragm unit further includes
Film core assembly (32), the diaphragm (31) have a centre bore (312), and the film core assembly (32) passes through the centre bore
(312)。
4. regulating valve diaphragm unit used for rail vehicle as claimed in claim 3, which is characterized in that film core assembly (32) packet
Diaphragm support (321) and film core (322) are included, are equipped with a through-hole at diaphragm support (321) center, the film core (322) is worn
The through-hole is crossed, the diaphragm support (321) is made of low temperature resistant silicon rubber.
5. regulating valve diaphragm unit used for rail vehicle as claimed in claim 4, which is characterized in that the diaphragm support (321)
Side wall is equipped with card slot (3211), and the card slot (3211) surround the diaphragm support (321) lateral wall one week, the diaphragm
(31) it is clamped towards the edge of the centre bore (312) to the card slot (3211).
6. regulating valve diaphragm unit used for rail vehicle as claimed in claim 5, which is characterized in that the diaphragm (31) with it is described
Diaphragm support (321) interference fit.
7. the regulating valve diaphragm unit used for rail vehicle as described in claim 4-6 is any, which is characterized in that the film core
(322) it is made of aluminum alloy materials, the diaphragm support (321) and the film core (322) are interference fitted.
8. regulating valve diaphragm unit used for rail vehicle as described in claim 1, which is characterized in that the thickness of the diaphragm (31)
Within the scope of 0.43-0.47mm.
9. regulating valve diaphragm unit used for rail vehicle as described in claim 1, which is characterized in that the side of the diaphragm (31)
Equipped with pressing plate (33), the edge setting chamfering or fillet of the pressing plate (33).
10. a kind of regulating valve, which is characterized in that the regulating valve includes any tune used for rail vehicle of claim 1-9
Save valve film component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821549862.XU CN208919453U (en) | 2018-09-21 | 2018-09-21 | A kind of regulating valve diaphragm unit used for rail vehicle and regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821549862.XU CN208919453U (en) | 2018-09-21 | 2018-09-21 | A kind of regulating valve diaphragm unit used for rail vehicle and regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208919453U true CN208919453U (en) | 2019-05-31 |
Family
ID=66706683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821549862.XU Active CN208919453U (en) | 2018-09-21 | 2018-09-21 | A kind of regulating valve diaphragm unit used for rail vehicle and regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208919453U (en) |
-
2018
- 2018-09-21 CN CN201821549862.XU patent/CN208919453U/en active Active
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