CN106740797B - A kind of adjustable relay valve - Google Patents
A kind of adjustable relay valve Download PDFInfo
- Publication number
- CN106740797B CN106740797B CN201611248330.8A CN201611248330A CN106740797B CN 106740797 B CN106740797 B CN 106740797B CN 201611248330 A CN201611248330 A CN 201611248330A CN 106740797 B CN106740797 B CN 106740797B
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- spring
- return spring
- stiffness factor
- ring rotation
- rotation piece
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to relay valves, disclose a kind of adjustable relay valve, including valve body (1), piston (2) are installed in valve body (1), sliding valve core (3) is equipped with the mounting groove (31) of annular, ring rotation piece (5) are installed in mounting groove (31), it further include return spring (4), the upper end of return spring (4) is fixed on ring rotation piece (5), the lower part of valve body (1) is equipped with helicla flute (6), and controller (7) controls the depth that return spring (4) screw in helicla flute (6).The present invention drives return spring to rotate by ring rotation piece, design in conjunction with helicla flute screw in return spring can in helicla flute during rotation, to reach the function of control return spring effective length, which has the function that freely to control brake sensitivity by adjustable return spring.
Description
Technical field
The present invention relates to relay valves, more particularly to a kind of adjustable relay valve.
Background technique
The safety of running car and the reliability of braking system are closely related.And Pneumatic braking system is with its reliability
Height, fast response time, manufacturing cost be low, using it is pollution-free the advantages that and obtained on Medium or severe type cargo vehicle and motorbus
It is widely used.Existing Pneumatic braking system is mainly provided with two sets of independent brake apparatus, i.e. holding brake device and driving
Brake apparatus.When service brake, driver controls two-chamber main brake valve by foot pedal, the high pressure gas warp in gascollecting cap cylinder
It crosses two-chamber main brake valve to be sent to respectively in each checking cylinder of the forward and backward bridge of vehicle, high pressure gas pushes braking cylinder working, each checking cylinder
Push rod stretch out drive brake drum realize service brake.When parking, park brake switch, cutoff high air accumulator and rear axle are closed
Gas circuit between checking cylinder, meanwhile, the high pressure gas in rear axle checking cylinder is discharged into atmosphere, and energy-stored spring is released through push rod drive
Brake drum realizes parking braking.When releasing parking, park brake switch is opened, the high pressure gas of gascollecting cap cylinder passes through parking system
Dynamic switch enters in rear axle checking cylinder, and the pressure compressed energy-storage spring generated using high pressure gas drives pusher retracted checking cylinder
In, the braking effect of rear axle checking cylinder releases.
The Medium or severe type cargo vehicle and motorbus for being mounted with Pneumatic braking system are in the process of moving because of brake component
Abrasion and the influence of surrounding enviroment inevitably will appear freeze blocking, system element ponding of cryogenic system pipeline ponding and freeze hair
The failures such as card, high/low temperature system failure gas leakage be easy to cause vehicle braking air pressure reduction, to cause the safe thing of major motor vehicle
Therefore therefore existing Pneumatic braking system there are biggish security risks.
Summary of the invention
The shortcomings that present invention is in relay valve in the prior art without regulatory function, provides a kind of adjustable relay valve.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
A kind of adjustable relay valve, including valve body are equipped with piston in valve body and valve inner are divided into upper gas by piston
Room and lower chamber, the sliding valve core for being equipped in valve body below piston and being pushed by piston, lower chamber be equipped with gas vent, with
The first port of gas receiver connection and the second port that connect with arrester, the upper and lower displacement of sliding valve core control gas vent, the
Connection between Single port and second port, the outer surface of sliding valve core are equipped with the mounting groove of annular, are equipped with control in mounting groove
Chamber processed is equipped with controller and the gear by controller control rotation in control chamber, is equipped in mounting groove around slide-valve mandrel
The ring rotation piece of line rotation, the inner ring surface of ring rotation piece are equipped with the annular rack cooperated with gear, further include being set in cunning
Return spring outside movable valve plug, the upper end of return spring are fixed on ring rotation on piece, and the lower part of valve body is equipped with and return spring
With the helicla flute that can be screwed in for return spring lower end is merged, controller passes sequentially through gear, ring rotation piece drives return spring
Rotate and control the depth that return spring screws in helicla flute.Return spring is driven to rotate by ring rotation piece, in conjunction with
The design of helicla flute screw in return spring can in helicla flute during rotation, so that it is effectively long to reach control return spring
The function of degree, when the effective spring length degree of return spring shortens, return spring weakens the support force of sliding valve core, lives at this time
Plug can push sliding valve core to move down by lesser downward force, to realize the effect for adjusting brake susceptibility, the design
Have the function that freely to control brake sensitivity by adjustable return spring.
Preferably, control chamber is also equipped with receiver, power supply and the micromotor with moving gear rotation, receiver is received
Extraneous control signal is simultaneously sent to controller, and controller is logical according to the control signal control power supply and micromotor received
Disconnected and micromotor positive and negative rotation.It is rotated by the mating band moving gear of receiver, power supply, micromotor and controller, knot
Structure is reasonable, is convenient for user's remote control operation.
Preferably, ring rotation piece is made of symmetrical two semicircle arcs, two semicircle arcs are corresponded to each other
Magnet is equipped on the contact surface of connection, two semicircle arcs are mutually adsorbed by magnet and form ring rotation piece.Pass through two
The setting of a semicircle arcs, makes ring rotation piece detachable structure, facilitates the installation and removal of ring rotation piece.
Preferably, return spring is the spring that stiffness factor can be changed.The spring of variable stiffness factor realizes return spring
Variable element adjust, realize accurate adjustment to stiffness factor.
Preferably, the stiffness factor at return spring both ends is small, the stiffness factor of return spring interlude is big.Due to adjusting
During the return spring length of section, the lower end of return spring is mainly adjusted generally within fixed effect is played in helicla flute
Section control is that the interlude of return spring stretches out the length of helicla flute, therefore the lesser stiffness factor in both ends and centre are biggish
The setting of stiffness factor keeps the adjustment of interlude more accurate, avoids mistuning of the user in adjustment process, makes brake system
The change of sensitivity of system is excessive, to cause danger.
Preferably, return spring includes end to end first spring, second spring and the third from top to bottom arranged
The stiffness factor of spring, the first spring, second spring and third spring is different.
Preferably, the stiffness factor of second spring is 2.5-3.5 times of the stiffness factor of the first spring.First spring
The stiffness factor that stiffness factor is less than second spring is the modification needed during installation for the ease of return spring, in order to avoid return bullet
The upper part toughness of spring is excessive to be caused to be difficult to install.
Preferably, the stiffness factor of second spring is 4.5-5 times of the stiffness factor of third spring.Third spring protrudes into
In helicla flute, effect that is fixed and guiding second spring to screw in helicla flute, therefore the third bullet of smaller stiffness factor are primarily served
Spring has stronger deformability, guarantees the smooth rotation in helicla flute of third spring, third spring is avoided to be engaging in helicla flute
Adjusting that is interior and influencing return spring.
Preferably, being equipped with antirust coat outside the first spring, second spring and third spring.
Preferably, the depth of helicla flute is identical as the sum of second spring and the length of third spring.Guarantee the first spring
It is always positioned at outside helicla flute, guarantees the groundwork state of relay valve.
The present invention has significant technical effect: being driven back by ring rotation piece due to using above technical scheme
Position spring rotates, and the design in conjunction with helicla flute screw in return spring can in helicla flute during rotation, thus
The function of reaching control return spring effective length, when the effective spring length degree of return spring shortens, return spring is to sliding
The support force of spool weakens, and piston can push sliding valve core to move down by lesser downward force at this time, to realize adjusting
The effect of brake susceptibility, the design have the function that freely to control brake sensitivity by adjustable return spring.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the partial sectional view of Fig. 1.
Fig. 3 is the structural schematic diagram of the semicircle arcs of Fig. 1.
The toponym that each number designation is referred in attached drawing is as follows: 1-valve body, 2-pistons, 3-sliding valve cores, 4-
Return spring, 5-ring rotation pieces, 6-helicla flutes, 7-controllers, 8-gears, 9-receivers, 10-power supplys, on 11-
Gas chamber, 12-lower chambers, 13-micromotors, 31-mounting grooves, the 41-the first spring, 42-second springs, 43-third bullets
Spring, 51-annular racks, 52-semicircle arcs, 521-contact surfaces, 522-magnet, 121-gas vents, 122-first ends
Mouth, 123-second ports.
Specific embodiment
Present invention is further described in detail with embodiment with reference to the accompanying drawing.
Embodiment 1
A kind of adjustable relay valve, including valve body 1 are equipped with piston 2 in valve body 1 and will be divided into inside valve body 1 by piston 2
Upper chamber 11 and lower chamber 12 are equipped in valve body 1 positioned at the sliding valve core 3 piston 2 lower section and pushed by piston 2, lower chamber
12 are equipped with gas vent 121, the first port 122 connecting with gas receiver and the second port 123 connecting with arrester, sliding valve core
3 upper and lower displacement controls the connection between gas vent 121, first port 122 and second port 123, the outer surface of sliding valve core 3
It is equipped with the mounting groove 31 of annular, control chamber is equipped in mounting groove 31, controller 7 is installed in control chamber and is controlled by controller 7
The gear 8 of rotation is made, the ring rotation piece 5 around the rotation of 3 axis of sliding valve core is installed in mounting groove 31, ring rotation piece 5
Inner ring surface is equipped with the annular rack 51 cooperated with gear 8, further includes the return spring 4 being set in outside sliding valve core 3, return spring
4 upper end is fixed on ring rotation piece 5, and the lower part of valve body 1 is equipped with return spring 4 with merge can be for 4 lower end of return spring
The helicla flute 6 of screw-in, controller 7 passes sequentially through gear 8, ring rotation piece 5 drives return spring 4 to rotate and controls return spring
4 screw in the depth of helicla flute 6.
Control chamber is also equipped with receiver 9, power supply 10 and the micromotor 13 rotated with moving gear 8, and receiver 9 receives outer
The control signal on boundary is simultaneously sent to controller 7, and controller 7 is according to the control signal control power supply 10 and micromotor 13 received
On-off and micromotor 13 positive and negative rotation.
Ring rotation piece 5 is made of symmetrical two semicircle arcs 52, and two semicircle arcs 52 correspond to each other connection
Contact surface 521 on be equipped with magnet 522, two semicircle arcs 52 form ring rotation piece by the mutually absorption of magnet 522
5。
Return spring 4 is the spring that stiffness factor can be changed.
The stiffness factor at 4 both ends of return spring is big, and the stiffness factor of 4 interlude of return spring is small.
Return spring 4 includes end to end first spring 41, second spring 42 and the third spring from top to bottom arranged
43, the stiffness factor of the first spring 41, second spring 42 and third spring 43 is different.
The stiffness factor of second spring 42 is 2.5-3.5 times of the stiffness factor of the first spring 41.
The stiffness factor of second spring 42 is 4.5-5 times of the stiffness factor of third spring 43.
Antirust coat is equipped with outside first spring 41, second spring 42 and third spring 43.
The depth of helicla flute 6 is identical as the sum of second spring 42 and the length of third spring 43.
When brake sensitivity needs to adjust, user thinks that receiver 9 sends control signal by remote control, and receiver 9 will
Control signal sends controller 7 to, and controller 7 is positive and negative according to the power supply of the control signal control power supply 10 and micromotor 13
Turn, the rotation driven gear 8 of micromotor 13 rotates, and gear 8 drives ring rotation piece 5 by annular rack 51 engaged therewith
Rotation, the return spring 4 being fixed on ring rotation piece 5 at this time also and then rotate, since the lower part of valve body 1 is equipped with helicla flute 6,
Therefore the return spring 4 in rotation deeply or can rise from valve body 1 along helicla flute 6, so that adjusting return spring 4 stretches out valve body
Effective spring length degree outside 1, when stretch out valve body 1 outside 4 length of return spring shorten when, return spring 4 for sliding valve core 3 to
On thrust decay, need the brake of stepping on of low-force to achieve that braking purpose, to increase the sensitivity of brake.
In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to equalization made by scope of the present invention patent
Variation and modification, shall all be covered by the patent of the invention.
Claims (8)
1. a kind of adjustable relay valve, including valve body (1), valve body (1) is interior to be equipped with piston (2) and passes through piston (2) for valve body (1)
Inside is divided into upper chamber (11) and lower chamber (12), is equipped in valve body (1) below piston (2) and is pushed by piston (2)
Sliding valve core (3), lower chamber (12) is equipped with gas vent (121), the first port (122) that connect with gas receiver and and arrester
The upper and lower displacement of the second port (123) of connection, sliding valve core (3) controls gas vent (121), first port (122) and second
Connection between port (123), it is characterised in that: the outer surface of sliding valve core (3) is equipped with the mounting groove (31) of annular, installation
It is equipped with control chamber in slot (31), controller (7) and the gear (8) by controller (7) control rotation, installation are installed in control chamber
Ring rotation piece (5) around the rotation of sliding valve core (3) axis is installed, ring rotation piece (5) is by symmetrical two in slot (31)
Semicircle arcs (52) composition, two semicircle arcs (52), which correspond to each other, is equipped with magnet on the contact surface (521) connected
(522), two semicircle arcs (52) are formed ring rotation piece (5) by magnet (522) mutually absorption, ring rotation piece (5)
Inner ring surface be equipped with the annular rack (51) that cooperates with gear (8), further include being set in the return spring of sliding valve core (3) outside
(4), the upper end of return spring (4) is fixed on ring rotation piece (5), and the lower part of valve body (1) is equipped with to be cooperated with return spring (4)
And the helicla flute (6) that can be screwed in for return spring (4) lower end, controller (7) pass sequentially through gear (8), ring rotation piece (5) band
Dynamic return spring (4) rotate and control the depth that return spring (4) screw in helicla flute (6).
2. a kind of adjustable relay valve according to claim 1, it is characterised in that: control chamber is also equipped with receiver (9), electricity
Source (10) and the micromotor (13) rotated with moving gear (8), receiver (9) receive extraneous control signal and are simultaneously sent to control
Device (7), controller (7) is according to the control signal control power supply (10) received and the on-off and micro electric of micromotor (13)
The positive and negative rotation of machine (13).
3. a kind of adjustable relay valve according to claim 1, it is characterised in that: return spring (4) is variable for stiffness factor
Spring.
4. a kind of adjustable relay valve according to claim 1 or 3, it is characterised in that: the stiffness system at return spring (4) both ends
Number is big, and the stiffness factor of return spring (4) interlude is small.
5. a kind of adjustable relay valve according to claim 4, it is characterised in that: return spring (4) includes from top to bottom arranging
End to end first spring (41), second spring (42) and the third spring (43) of column, the first spring (41), second spring
(42) and the stiffness factor of third spring (43) is different.
6. a kind of adjustable relay valve according to claim 5, it is characterised in that: the stiffness factor of second spring (42) is the
2.5-3.5 times of the stiffness factor of one spring (41).
7. a kind of adjustable relay valve according to claim 5, it is characterised in that: the stiffness factor of second spring (42) is
4.5-5 times of the stiffness factor of three springs (43).
8. a kind of adjustable relay valve according to claim 5, it is characterised in that: the depth and second spring of helicla flute (6)
(42) and the sum of the length of third spring (43) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248330.8A CN106740797B (en) | 2016-12-29 | 2016-12-29 | A kind of adjustable relay valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248330.8A CN106740797B (en) | 2016-12-29 | 2016-12-29 | A kind of adjustable relay valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106740797A CN106740797A (en) | 2017-05-31 |
| CN106740797B true CN106740797B (en) | 2019-02-15 |
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ID=58929371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611248330.8A Active CN106740797B (en) | 2016-12-29 | 2016-12-29 | A kind of adjustable relay valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106740797B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI651226B (en) * | 2017-12-01 | 2019-02-21 | 財團法人車輛研究測試中心 | Pneumatic brake relay valve |
| CN109955842B (en) * | 2017-12-25 | 2020-06-16 | 财团法人车辆研究测试中心 | Air pressure brake relay valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203230893U (en) * | 2013-04-27 | 2013-10-09 | 河北华北石油荣盛机械制造有限公司 | Electric-manual pressure regulating valve |
| CN205186133U (en) * | 2015-05-27 | 2016-04-27 | 葛小林 | Brake brake pressure governing valve |
| CN103925400B (en) * | 2014-05-07 | 2016-08-24 | 西安交通大学 | A kind of servomotor directly drives the diaphragm type pneumatic proportional pressure-reducing valve of ball-screw |
| CN205769262U (en) * | 2016-06-28 | 2016-12-07 | 浙江万安科技股份有限公司 | A kind of Car Relay Valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080034910A1 (en) * | 2006-08-09 | 2008-02-14 | Roline Eric A | Dynamic adjustment of a steering system yoke |
| JP2014137005A (en) * | 2013-01-16 | 2014-07-28 | Denso Corp | Valve device |
-
2016
- 2016-12-29 CN CN201611248330.8A patent/CN106740797B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203230893U (en) * | 2013-04-27 | 2013-10-09 | 河北华北石油荣盛机械制造有限公司 | Electric-manual pressure regulating valve |
| CN103925400B (en) * | 2014-05-07 | 2016-08-24 | 西安交通大学 | A kind of servomotor directly drives the diaphragm type pneumatic proportional pressure-reducing valve of ball-screw |
| CN205186133U (en) * | 2015-05-27 | 2016-04-27 | 葛小林 | Brake brake pressure governing valve |
| CN205769262U (en) * | 2016-06-28 | 2016-12-07 | 浙江万安科技股份有限公司 | A kind of Car Relay Valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106740797A (en) | 2017-05-31 |
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