CN206111710U - Electrohydraulic valve group and hydrodynamic transmission case - Google Patents
Electrohydraulic valve group and hydrodynamic transmission case Download PDFInfo
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- CN206111710U CN206111710U CN201621027248.8U CN201621027248U CN206111710U CN 206111710 U CN206111710 U CN 206111710U CN 201621027248 U CN201621027248 U CN 201621027248U CN 206111710 U CN206111710 U CN 206111710U
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Abstract
The utility model discloses an electrohydraulic valve group and hydrodynamic transmission case, electrohydraulic valve group includes: a valve body. The valve body include first valve body and with the second valve body of first valve body structure as an organic whole, first valve body has open end, first inner chamber and first closed end, the second valve body has the closed end of second, second inner chamber and the closed end of third, first inner chamber with the both sides of the total junction of first valve body and second valve body are arranged respectively in to the second inner chamber, and communicate each other, set up in the first case of intracavity in first, get electric back through the push rod drive the proportion electro -magnet that first case removed, set up in an elastomeric element of intracavity in first, set up in the second case and the third case of intracavity in the second, set up in the 2nd elastomeric element of intracavity in the second, the utility model relates to a hydrodynamic brake's bypass relief valve, hydrodynamic braking adjust accurately, can realize the infinitely variable control to the brake force size.
Description
Technical field
This utility model is related to a kind of electromagnetic valve group in current and hydraulic transmission gear box.
Background technology
Hydraulic braking is widely used on diesel locomotive, especially at present as a kind of auxiliary braking mode
Vehicle is travelled in regions such as mountain area, ramps, is uneconomic using Block brake, while hydraulic braking has when high speed is braked
Obvious superiority, which can avoid the loss of brake shoe, be a kind of not only economic but also mode of braking of safety.On existing diesel locomotive
Transmission case be generally equipped with hydraulic braking function, specifically, controlled on two torque-converters axles respectively by electronic-controlled installation
Torque-converters fill oil extraction to realize, and then unlocking vehicle braking mode, but the torque-converters in this mode fill oil extraction not by
Precise control, it is impossible to realize braking at a high speed, control accuracy is not high, and application has some limitations.
In last century the seventies, external diesel locomotive is equipped with special hydraulic brake, but the fluid power system of early stage
Dynamic device is configured without brake control valve, therefore hydraulic braking is adjusted according to constant power, and constant power braking mode refers to braking work
Rate is constant, and when speed is improved, especially high speed brake condition, brake force decline rapidly this mode, and braking effect is inadequate
Substantially.Diesel locomotive has installed hydraulic braking control valve additional afterwards, and hydraulic braking curve is changed to wait by constant power curve and is turned round by which
Square curve or brake force ascending curve so that the superiority of hydraulic braking is played, wait moment of torsion mode of braking to refer to braking
Moment of torsion is constant, but as brake control valve uses usual pressure control valve, adjusts oil-in, oil drain out by oil pressure
Size realizing the control of brake force, which can not realize the accurate step-less adjustment of brake force, and strong by locomotive adhesion, machinery
Degree, and the factor such as cooling capacity impact, brake force can not be too high, and in order to realize the control of maximum braking force, also needs
An additionally mounted filling limiting valve, complex structure is wanted to take up room larger.
The content of the invention
Proposition of this utility model for problem above, and develop a kind of accurate control, compact conformation and can be more preferable
Ground improves the electromagnetic valve group in current of locomotive hydraulic braking performance, while additionally providing a kind of hydraulic power with the electromagnetic valve group in current
Case.
Technological means of the present utility model are as follows：
A kind of electromagnetic valve group in current, including：
Valve body；The second valve body that the valve body is included the first valve body and is structure as a whole with first valve body；Described
One valve body has opening, first inner chamber and the first closed end；Second valve body has the second closed end, second inner chamber and the
Three closed ends；The first inner chamber and the second inner chamber are respectively placed in the two of the total junction of the first valve body and the second valve body
Side, and be interconnected；
The first valve element being arranged in the first inner chamber；
It is electric after the proportion electro-magnet of first valve element movement is driven by push rod；The proportion electro-magnet is arranged on
On the opening；
The first elastomeric element being arranged in the first inner chamber；Described first valve element the other end passes through first bullet
Property part connect first closed end；
Control oil oil-in and valve group oil-out on first valve body；
The second valve element being arranged in the second inner chamber and the 3rd valve element；Second valve element is nested to be arranged on described the
In the spool bore that three valve elements are opened up in the axial direction；
The second elastomeric element being arranged in the second inner chamber；3rd valve element is connected by second elastomeric element
Connect the 3rd closed end；
Along the first pressure hydraulic fluid port that the 3rd valve element axial direction is arranged；
Along the second pressure hydraulic fluid port that the 3rd valve element radial direction is arranged；The second pressure hydraulic fluid port and the described first pressure
Power hydraulic fluid port is connected；
And the valve group oil-in on second valve body；
In addition, the electromagnetic valve group in current also includes：
First row QI KOU and second exhaust port on first valve body；
Along the 3rd air vent that the first valve element axial direction is arranged；
The 4th air vent arranged along the first valve element radial direction and the 5th air vent；The second exhaust port,
Three air vents, the 4th air vent and the 5th air vent are interconnected；
In addition, the electromagnetic valve group in current also includes the 6th air vent on second valve body；
Further,
First spool end, between the first valve body and the first closed end, form the first grease chamber, first elastic
Part is placed in first grease chamber；
3rd spool end, between the second valve body and the 3rd closed end, form the second grease chamber, second elastic
Part is placed in second grease chamber；
First valve body is connected with the first grease chamber and the second grease chamber with offering on the total junction of the second valve body
Control oil the first oil-out；
Further, the 3rd valve element can be moved axially in the second inner chamber along second valve element；
Further,
First valve body and the total junction of the second valve body are provided with and are connected with first inner chamber and second inner chamber
Oil duct, outlet of the oil duct one end as the second valve body, entrance of the other end as the first valve body；
Second valve interior wall is provided with annular boss；
3rd valve element has the frustum structure on the inside of the annular boss；By changing the valve group oil-in
Pressure adjusting the gap between the annular boss and the frustum structure, and then adjust the outlet aperture of the second valve body；
Further, the entrance of first valve body is identical with the size of valve group oil-out, and is configured in same plane；
Further, the electromagnetic valve group in current includes the electronic control unit being connected with the proportion electro-magnet；When described
When electromagnetic valve group in current is applied to locomotive, the electronic control unit realizes locomotive by the electric current of the control proportion electro-magnet
Brake hard when retarding braking or high speed；
Further, second valve element is closed with the second of second valve body by the pressure oil being placed in second inner chamber
Close end and produce directly contact；The push rod is made using permeability magnetic material.
A kind of hydraulic transmission gear box, including the electromagnetic valve group in current described in any of the above-described.
The electromagnetic valve group in current provided as a result of above-mentioned technical proposal, this utility model and hydraulic transmission gear box, it is described electro-hydraulic
Valve group has advantages below compared with prior art：Used as the bypass eduction valve of hydraulic brake, hydraulic braking adjusts accurate, can
To realize the step-less adjustment to brake force size；Compact conformation, concrete structure is equivalent to the proportional solenoid for sharing a valve body
And hydraulic valve；Can avoid the 3rd valve element during pressure alteration that flutter phenomenon occurs；Locomotive fluid power can preferably be improved
Braking ability.
Description of the drawings
Fig. 1 is the structural representation of electromagnetic valve group in current described in the utility model；
In figure：1st, the first valve body, the 2, second valve body, 3, opening, 4, first inner chamber, the 5, first closed end, 6, second closes
Close end, 7, second inner chamber, the 8, the 3rd closed end, 9, total junction, the 10, first valve element, 11, push rod, 12, proportion electro-magnet,
13rd, the first elastomeric element, 14, the oily oil-in of control, 15, valve group oil-out, the 16, second valve element, the 17, the 3rd valve element, 18, valve element
Hole, the 19, second elastomeric element, 20, first pressure hydraulic fluid port, 21, second pressure hydraulic fluid port, 22, valve group oil-in, 23, first exhaust
Mouthful, 24, second exhaust port, the 25, the 3rd air vent, the 26, the 4th air vent, the 27, the 5th air vent, the 28, the 6th air vent, 29,
First grease chamber, the 30, second grease chamber, 31, control oily first oil-out, 32, oil duct, 33, annular boss, 34, frustum structure, 35,
Control oily second oil-out.
Specific embodiment
A kind of electromagnetic valve group in current as shown in Figure 1, including：Valve body；The valve body include the first valve body 1 and with first valve
The second valve body 2 that body 1 is structure as a whole；First valve body 1 has opening 3, first inner chamber 4 and the first closed end 5；It is described
Second valve body 2 has the second closed end 6, second inner chamber 7 and the 3rd closed end 8；The first inner chamber 4 and the second inner chamber 7
The both sides of the total junction 9 of the first valve body 1 and the second valve body 2 are respectively placed in, and are interconnected；It is arranged at the first inner chamber
The first valve element 10 in 4；It is electric after the proportion electro-magnet 12 of first valve element 10 movement is driven by push rod 11；The ratio
Example electric magnet 12 is arranged on the opening 3；The first elastomeric element 13 being arranged in the first inner chamber 4；Described first
10 the other end of valve element connects first closed end 5 by first elastomeric element 13；On first valve body 1
The oily oil-in 14 of control and valve group oil-out 15；The second valve element 16 and the 3rd valve element 17 being arranged in the second inner chamber 7；Institute
State in the 16 nested spool bore 18 for being opened up installed in the 3rd valve element 17 in the axial direction of the second valve element；It is arranged at described second
The second elastomeric element 19 in inner chamber 7；3rd valve element 17 connects the 3rd closure by second elastomeric element 19
End 8；Along the first pressure hydraulic fluid port 20 that 17 axial direction of the 3rd valve element is arranged；Arrange along 17 radial direction of the 3rd valve element
Second pressure hydraulic fluid port 21；The second pressure hydraulic fluid port 21 is connected with the first pressure hydraulic fluid port 20；And located at described the
Valve group oil-in 22 on two valve bodies 2；In addition, the electromagnetic valve group in current also includes：First exhaust on first valve body 1
Mouth 23 and second exhaust port 24；Along the 3rd air vent 25 that 10 axial direction of the first valve element is arranged；Along first valve element
The 4th air vent 26 and the 5th air vent 27 that 10 radial directions are arranged；The second exhaust port 24, the 3rd air vent the 25, the 4th
Air vent 26 and the 5th air vent 27 are interconnected；In addition, the electromagnetic valve group in current also includes on second valve body 2
Six air vents 28；Further, 10 end of the first valve element, form the first grease chamber between the first valve body 1 and the first closed end 5
29, first elastomeric element 13 is placed in first grease chamber 29；3rd valve element, 17 end, the second valve body 2 and the 3rd
The second grease chamber 30 is formed between closed end 8, second elastomeric element 19 is placed in second grease chamber 30；First valve body
1 with the control oil first that is connected with the first grease chamber 29 and the second grease chamber 30 offered on the total junction 9 of the second valve body 2 go out
Hydraulic fluid port 31；Further, the 3rd valve element 17 can carry out axial shifting along second valve element 16 in the second inner chamber 7
It is dynamic；Further, the total junction 9 of first valve body 1 and the second valve body 2 is provided with and first inner chamber 4 and second inner chamber 7
The oil duct 32 for connecting, outlet of 32 one end of oil duct as the second valve body 2, entrance of the other end as the first valve body 1；It is described
Second valve body, 2 inwall is provided with annular boss 33；3rd valve element 17 has the frustum on the inside of the annular boss 33
Structure 34；Adjusted between the annular boss 33 and the frustum structure 34 by changing the pressure of the valve group oil-in 22
Gap, and then adjust the second valve body 2 outlet aperture；Further, the entrance of first valve body 1 and valve group oil-out 15
Size it is identical, and be configured in same plane；Further, the electromagnetic valve group in current includes being connected with the proportion electro-magnet 12
Electronic control unit；When the electromagnetic valve group in current is applied to locomotive, the electronic control unit is by controlling the ratio electricity
The electric current of Magnet 12 is realizing brake hard during the retarding braking or high speed of locomotive；Further, second valve element 16 passes through
The pressure oil being placed in second inner chamber 7 produces directly contact with second closed end 6 of second valve body 2；The push rod 11 is adopted
Made with permeability magnetic material.First elastomeric element 13 and second elastomeric element 19 adopt compression spring；First is elastic
Part 13 is abutted against with 10 end of the first valve element；The proportion electro-magnet 12 is used to control 10 position of the first valve element；
After the proportion electro-magnet 12 must be electric, which passes through push rod 11 and promotes the first valve element 10 to produce displacement；The electromagnetic valve group in current is also wrapped
Include control the second oil-out 35 of oil that oily first oil-out 31 is connected is controlled with described, control oil 35 conduct of the second oil-out
Control oil pressure measuring point；When the electromagnetic valve group in current is applied to locomotive, the electronic control unit is by controlling the ratio electromagnetism
Realizing brake hard during the retarding braking or high speed of locomotive, specifically, the electronic control unit can be with root for the electric current of ferrum 12
Manipulate position to control the ratio according to the speed of locomotive, hydraulic transmission gear box oil temperature, the water temperature of chiller and drivers' cab handle
The electric current of example electric magnet 12.In actual applications, hydraulic braking power is subject to radiator heat-dissipation ability, chiller water temperature, liquid
Power transmission case oil temperature is limited, it is impossible to unlimited to increase, during locomotive brake, electronic control unit by controlled temperature extreme value, then
The size of brake force desired value is set according to hydraulic transmission gear box oil temperature, chiller water temperature, while brake force desired value is believed
The current signal of proportion electro-magnet 12 number is automatically converted to, the size of current of proportion electro-magnet 12 is adjusted.Driver also dependent on
Speed and travel conditions, manual operation drivers' cab handle position come the size of regulating brake force desired value, electronic control unit phase
12 size of current of proportion electro-magnet should be adjusted.
A kind of hydraulic transmission gear box, including the electromagnetic valve group in current described in any of the above-described.
Electromagnetic valve group in current described in the utility model is considered as including the proportional solenoid and hydraulic valve that share a valve body；Work as electricity
Liquid valve group as hydraulic transmission gear box ingredient when, which can play regulation fluid power as the bypass circulation of hydraulic brake
The effect of brake oil-filled quantity, specifically, the oil-filled quantity of hydraulic brake can be by the electromagnetic valve group in current according to Electronic Control list
The control signal that unit is given is automatically adjusting, and then changes the size of braking moment, compact conformation, easily controllable；This reality
With new in order to overcome in prior art with the raising of locomotive speed, what the braking moment of its hydraulic brake declined rapidly asks
Topic, when constant power braking Curve Transforming into grade moment of torsion braking curve or brake force ascending curve, can apply this practicality
The new electromagnetic valve group in current is used as hydraulic braking control valve.
Electromagnetic valve group in current described in the utility model is applied in hydraulic braking, when braking is just started, hydraulic brake is discharged
Pressure oil communicate with valve group oil-in 22, the second valve element 16 is acted against the second valve body 2 by the pressure oil into electromagnetic valve group in current
Second closed end 6, the second valve element 16 are maintained static, while proportion electro-magnet 12 obtains electric, proportion electro-magnet 12 is pushed away by push rod 11
Dynamic first valve element 10 is moved down, the oily oil-in 14 of control connect (in non-hydraulic braking operating mode, the oily oil-in 14 of control is disconnected,
The pressure being more than due to pressure oil oil pressure during hydraulic braking operating mode into electromagnetic valve group in current during non-hydraulic braking operating mode, therefore need control
Liquefaction pressure is balancing a part of active force, so the just connection only in hydraulic braking of the oily oil-in 14 of control), now the first valve
Core 10 is in certain under the pressure effect of the electromagnetic force, the elastic force of the first elastomeric element 13 and control oil of proportion electro-magnet 12
The balance of one position, with the increase of speed, the rotating speed of hydraulic brake is also increased, the pressure oil that hydraulic brake is discharged
Oil pressure and rotating speed square are directly proportional, and 22 pressure of valve group oil-in starts increase, moves, enter from second inner chamber 7 on the 3rd valve element 17
The pressure oil oil mass for entering first inner chamber 4 tails off, and adjusts 12 electric current of proportion electro-magnet by electronic control unit, changes ratio electromagnetism
The electromagnetic force of ferrum 12 so that the position of the first valve element 10 does not change, so 15 aperture of valve group oil-out is not with braking
The rising of device rotating speed and increase, although the flow velocity of pressure oil increases, but oil-filled degree is still higher compared with during constant power braking, so as to reality
Showed locomotive high velocity waits moment of torsion braking；If it is desired to bigger brake force is realized in high speed, the frustum knot of the 3rd valve element 17
The restriction effect of structure 34 becomes apparent from, and enters the oily fewer and feweri of first inner chamber 4 from second inner chamber 7, while scaling up electromagnetism
The electric current of ferrum 12, in the presence of electromagnetic force, the first valve element 10 is moved down so that 15 aperture of valve group oil-out diminishes therewith, returns to
The oil mass of hydraulic transmission gear box tails off, and then the oil-filled degree in hydraulic brake is increased, and so as to braking moment increases, defines braking
Power ascending curve, this brake force can make locomotive stable in a certain speed in descending, effectively reduce the loss of brake shoe；Work as system
When dynamic power increases to the maximum allowable power that chiller can bear, in order to prevent to chiller and hydraulic transmission gear box
Damage, it is necessary to terminate the continuation increase of brake force, now electronic control unit reduces the electric current of proportion electro-magnet 12, the first valve
Move on core 10,15 aperture of valve group oil-out becomes big, and oil extraction flow velocity increases, the oil-filled degree of hydraulic brake is reduced, and then brake force
It is rapid to decline, it is this to adjust the brake hard for being equally applicable to locomotive；In locomotive high speed brake hard, electronic control unit drop
Electric current that is low or directly cutting off proportion electro-magnet 12, moves on the first valve element 10, makes 15 aperture of valve group oil-out reach maximum, make
Dynamic device oil-filled quantity drastically declines, and brake force is reduced rapidly, improves the safety of vehicle traveling.
During use, electromagnetic valve group in current described in the utility model is fixed on the casing of hydraulic transmission gear box, and hydraulic brake goes out
Hydraulic fluid port is communicated with the valve group oil-in 22, and the valve group oil-out 15 is communicated with the oil sump of hydraulic transmission gear box, and hydraulic braking is opened
Begin, the pressure oil into valve group acts against the second valve element 16 second closed end 6 of the second valve body 2, the second valve element 16 equivalent to
One plunger, plays a part of to prevent the 3rd valve element 17 from axial float occurring in the course of the work, while increasing the second elastic
The lifting surface area of part 19 so that valve group reduces damping during pressure alteration and shakes；Proportion electro-magnet 12 obtains electric, control oil
Oil-in 14 is connected, and the first valve element 10 is in the electromagnetic force of proportion electro-magnet 12, the elastic force of the first elastomeric element 13 and control oil
Pressure effect it is lower keep balance, as hydraulic brake rotating speed is raised, pressure and the brake rotating speed of valve group oil-in 22
Square it is directly proportional, adjusts the electric current of proportion electro-magnet 12, the position of the first valve element 10 is constant, 22 pressure buildup of valve group oil-in,
Move on 3rd valve element 17, restriction effect increase, the oil mass into the first valve body 1 are reduced, and return to transmission case oil sump from the first valve body 1
Oil mass also accordingly reduce, braking intracavity oil-filled quantity increase, brake force are in rising trend, with the further raising of speed, make
Dynamic power constantly increases, and when the maximum brake power that chiller can bear is reached, electronic control unit reduces even to be cut
The electric current of disconnected proportion electro-magnet 12,15 aperture of valve group oil-out become big, and control oil pressure reduces, and the 3rd valve element 17 is moved down, more
Pressure oil enters the first valve body 1, and so as to return to fuel tank, brake force is reduced rapidly.
Compared with prior art, electromagnetic valve group in current described in the utility model has advantages below：
1st, electromagnetic valve group in current hydraulic braking described in the utility model adjusts accurate, it is possible to achieve the stepless-adjustment to brake force size
Section；Bypass eduction valve of the electromagnetic valve group in current as hydraulic brake, the size of current after changing proportion electro-magnet energization,
And then cause the first valve element to produce different axial displacements, the aperture size of valve group oil-out is adjusted, so as to realize the bypass
The oily Flow-rate adjustment in loop；In addition, the electric current consecutive variations by adjusting proportion electro-magnet, you can realize valve group oil-out aperture
Consecutive variations, and then realize the oily flow consecutive variations of the bypass circulation, so as to realize hydraulic brake braking intracavity
The consecutive variations of pressure change and brake force.
2nd, electromagnetic valve group in current compact conformation described in the utility model, concrete structure is equivalent to the ratio electromagnetism for sharing a valve body
Valve and hydraulic valve, proportional solenoid here and hydraulic valve cooperation and are adjusted, and realize the step-less adjustment of brake force.
3rd, electromagnetic valve group in current described in the utility model can avoid the 3rd valve element during pressure alteration that flutter phenomenon occurs；
The stability of hydraulic system is critically important, if in the course of the work, valve element occurs vibration, is kept not with the concentricity of valve body
It is good, then it is easy to the phenomenon such as stuck；There is in the second valve body of this utility model the second valve element and the 3rd valve element two-stage valve element,
When braking is just started, the second valve element is fixed on the second valve interior wall, and with the change of pressure, the 3rd valve element can only be along the
Two valve elements are moved up or down, and this structure can ensure the concentricity of the 3rd valve element and the second valve body well, while the
Three valve elements can bear a part of elastic force, increase effective lifting surface area of the second elastomeric element.
4th, electromagnetic valve group in current described in the utility model can preferably improve locomotive hydraulic braking performance；The electromagnetic valve group in current is not
But the step-less adjustment of brake force can be realized as needed, can be with when braking power reach maximum, electronic control unit
The electric current of proportion electro-magnet is reduced or directly cut off, and then causes valve group oil-out aperture to reach maximum, brake force is reduced rapidly；
Brake force is not only limited by maximum brake power, is also limited by hydraulic transmission gear box oil temperature and coolant water temperature, once fluid power
Transmission case oil temperature or coolant water temperature reach setting value, and hydraulic braking must be released, therefore can set hydraulic transmission gear box oil temperature actual value
It is or coolant water temperature actual value feeds back to electronic control unit and has of short duration delayed, has of short duration overloading to allow brake force, so favourable
Brake hard when vehicle high-speed.
5th, electromagnetic valve group in current described in the utility model is not only applicable to the hydraulic-braking system of diesel locomotive, to other vehicles
Hydraulic braking also has reference function.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any those familiar with the art in the technical scope that this utility model is disclosed, according to this practicality
New technical scheme and its inventive concept equivalent or change in addition, should all cover protection domain of the present utility model it
It is interior.
Claims (10)
1. a kind of electromagnetic valve group in current, it is characterised in that the electromagnetic valve group in current includes：
Valve body；The second valve body that the valve body is included the first valve body and is structure as a whole with first valve body；First valve
Body has opening, first inner chamber and the first closed end；There is second valve body the second closed end, second inner chamber and the 3rd to close
Close end；The first inner chamber and the second inner chamber are respectively placed in the both sides of the total junction of the first valve body and the second valve body,
And be interconnected；
The first valve element being arranged in the first inner chamber；
It is electric after the proportion electro-magnet of first valve element movement is driven by push rod；The proportion electro-magnet is arranged on described
On opening；
The first elastomeric element being arranged in the first inner chamber；Described first valve element the other end is by first elastic
Part connects first closed end；
Control oil oil-in and valve group oil-out on first valve body；
The second valve element being arranged in the second inner chamber and the 3rd valve element；Second valve element is nested to be arranged on the 3rd valve
In the spool bore that core is opened up in the axial direction；
The second elastomeric element being arranged in the second inner chamber；3rd valve element connects institute by second elastomeric element
State the 3rd closed end；
Along the first pressure hydraulic fluid port that the 3rd valve element axial direction is arranged；
Along the second pressure hydraulic fluid port that the 3rd valve element radial direction is arranged；The second pressure hydraulic fluid port and first pressure oil
Mouth is connected；
And the valve group oil-in on second valve body.
2. electromagnetic valve group in current according to claim 1, it is characterised in that the electromagnetic valve group in current also includes：
First row QI KOU and second exhaust port on first valve body；
Along the 3rd air vent that the first valve element axial direction is arranged；
The 4th air vent arranged along the first valve element radial direction and the 5th air vent；The second exhaust port, the 3rd row
QI KOU, the 4th air vent and the 5th air vent are interconnected.
3. electromagnetic valve group in current according to claim 1, it is characterised in that the electromagnetic valve group in current is also included located at second valve
The 6th air vent on body.
4. electromagnetic valve group in current according to claim 1, it is characterised in that
First spool end, the first grease chamber between the first valve body and the first closed end, is formed, first elastomeric element is put
In first grease chamber；
3rd spool end, the second grease chamber between the second valve body and the 3rd closed end, is formed, second elastomeric element is put
In second grease chamber；
First valve body with the control that is connected with the first grease chamber and the second grease chamber is offered on the total junction of the second valve body
The first oil-out of liquefaction.
5. electromagnetic valve group in current according to claim 1, it is characterised in that the 3rd valve element can exist along second valve element
Move axially in the second inner chamber.
6. electromagnetic valve group in current according to claim 1, it is characterised in that
First valve body is provided with the oil duct connected with first inner chamber and second inner chamber with the total junction of the second valve body,
Outlet of the oil duct one end as the second valve body, entrance of the other end as the first valve body；
Second valve interior wall is provided with annular boss；
3rd valve element has the frustum structure on the inside of the annular boss；By the pressure for changing the valve group oil-in
Power is adjusting the gap between the annular boss and the frustum structure, and then adjusts the outlet aperture of the second valve body.
7. electromagnetic valve group in current according to claim 6, it is characterised in that the entrance of first valve body and valve group oil-out
Size is identical, and is configured in same plane.
8. electromagnetic valve group in current according to claim 1, it is characterised in that the electromagnetic valve group in current includes and the proportion electro-magnet
The electronic control unit being connected；When the electromagnetic valve group in current is applied to locomotive, the electronic control unit is described by control
The electric current of proportion electro-magnet is realizing brake hard during the retarding braking or high speed of locomotive.
9. electromagnetic valve group in current according to claim 1, it is characterised in that second valve element is by being placed in second inner chamber
Pressure oil produces directly contact with the second closed end of second valve body；The push rod is made using permeability magnetic material.
10. a kind of hydraulic transmission gear box, it is characterised in that the hydraulic transmission gear box includes the electricity described in any one of claim 1 to 9
Liquid valve group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027248.8U CN206111710U (en) | 2016-08-31 | 2016-08-31 | Electrohydraulic valve group and hydrodynamic transmission case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027248.8U CN206111710U (en) | 2016-08-31 | 2016-08-31 | Electrohydraulic valve group and hydrodynamic transmission case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111710U true CN206111710U (en) | 2017-04-19 |
Family
ID=58518663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621027248.8U Withdrawn - After Issue CN206111710U (en) | 2016-08-31 | 2016-08-31 | Electrohydraulic valve group and hydrodynamic transmission case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438539A (en) * | 2016-08-31 | 2017-02-22 | 中车大连机车研究所有限公司 | Electro-hydraulic valve group and hydraulic transmission case |
| CN112413193A (en) * | 2020-11-18 | 2021-02-26 | 瑞立集团瑞安汽车零部件有限公司 | Based on commercial car AMT derailleur solenoid valve integrated device for assembly |
-
2016
- 2016-08-31 CN CN201621027248.8U patent/CN206111710U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438539A (en) * | 2016-08-31 | 2017-02-22 | 中车大连机车研究所有限公司 | Electro-hydraulic valve group and hydraulic transmission case |
| CN112413193A (en) * | 2020-11-18 | 2021-02-26 | 瑞立集团瑞安汽车零部件有限公司 | Based on commercial car AMT derailleur solenoid valve integrated device for assembly |
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Granted publication date: 20170419 Effective date of abandoning: 20180424 |
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