CN209600481U - The high gas flow electropneumatic valve of motor drive for commerial vehicle - Google Patents
The high gas flow electropneumatic valve of motor drive for commerial vehicle Download PDFInfo
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- CN209600481U CN209600481U CN201920262384.2U CN201920262384U CN209600481U CN 209600481 U CN209600481 U CN 209600481U CN 201920262384 U CN201920262384 U CN 201920262384U CN 209600481 U CN209600481 U CN 209600481U
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- high gas
- motor drive
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Abstract
Disclosed by the utility model is the high gas flow electropneumatic valve of the motor drive for commerial vehicle, including valve gear, the valve gear has at least one entrance, outlet and exhaust outlet, including at least one inlet valve seat and at least one delivery valve seat, wherein delivery valve seat is opened and closed by piston, inlet valve seat is closed and is opened by the sealing element moved by piston, the position of the piston is the pressure by being applied on the piston by electromechanical assembly, contact force and the balance of spring force are limited, it is characterized in that, the electromechanical assembly includes electric rotating motivation and mechanical driving device, the rotary motion of the motor is converted into the linear compression of the spring by the mechanical driving device.Main electric control braking function only is achieved that with single electromechanical assembly, therefore advantageous in cost；And the stability of maximum braking force, controllability and safe condition when parking has promotion, improves emergency brake performance.
Description
Technical field
The utility model relates to electropneumatic valves, in particular to are used for the high gas flow electropneumatic valve of commerial vehicle.
Background technique
Current electropneumatic valve is usually the combination of solenoid valve and high gas flow valve.By adjusting in main control piston
Solenoid valve establish stress level, the then opening and closing of main control piston control high gas flow valve seat, thus for pneumatic system
Dynamic room provides adequately inflatable and deflatable.
Cost-efficient solenoid valve only has there are two discrete state (opening or closing), and it is multiple that this is set to partial pressure
Miscellaneous control problem.In addition, any additional operating mode requires to integrate additional solenoid valve, which increase this electronic gas
The cost of dynamic valve.
US2893415 (A): the utility model is disclosed from formula relay valve is ground, and can amplify the air-flow of pneumatic actuator.
DE4227084 (A1): the utility model discloses valve gear, executes by the way that the operation of high gas flow relay valve is pneumatic
Device, wherein the control pressure of relay valve is adjusted by electropneumatic magnet valve.
EP2239174 (A2): the utility model discloses bistable valve, wherein operation piston is deferred to by motor operation
Linear actuator position, only provide two stable states.
EP3118077 (A1): the utility model disclose a kind of motor operation being integrated in relay valve from lock machine
Structure, by control pressure operation, but piston motion is limited by this locking.
From text disclosed in US2893415 (A) it is found that relay valve can be provided for pneumatic actuator it is enough
Air mass flow, such as running brake or parking brake.
In the end of last century, automobile pneumatic system is improved by electronic control, and where it is proposed solenoid valves to solve
Certainly, by adjusting the control pressure of high gas flow valve come the pressure of adjustment actuating mechanism, as described in DE4227084 (A1),
It in this pressure regulator, needs to integrate multiple solenoid valves, ties it mutually with the multiple electronic power grade electronics connected are needed
It closes, competence exertion function appropriate.This is because these solenoid valves usually only two discrete states, and only one is discrete
State can be stablized under unpowered state.
Although above-mentioned limit can be overcome using technology in so-called proportion magnetic valve and bistable electromagnetic valve
System, but the at high cost or robustness of this valve is inadequate.In prior art EP2239174(A2), a kind of solution is provided
Certainly scheme, with ensure to realize it is multiple be not powered on stable state, to generate the control pressure for parking braking relay valve.The solution
Certainly scheme moves piston using motor and self-locking mechanism between two end positions, and inflation is distributed under two end positions
And deflation status.The shortcomings that solution, is that its output pressure only has there are two discrete value.The setting of median can only lead to
Valve is overregulated to realize, due to the latching characteristics of transmission device, this purpose that do not apply uses additional solenoid valve
The intermediate pressure of input is arranged.In addition, the deficiency of air of output is directly to operate pneumatic actuator；Relay valve is controlled by output
System.
In prior art EP3118077(A1), motor is used to influence the operation of relay valve.The self-locking mechanism of motor
Limit the movement of relay valve piston.The disadvantages of this solution is that motor is unable to the output pressure of adjusting relay valve, needs
Additional solenoid valve generates the adjusting pressure for controlling servo valve piston.
Utility model content
In view of technical problem present in background technique, the technical issues of the utility model is solved, is intended to provide a kind of use
In the high gas flow electropneumatic valve of the motor drive of commerial vehicle.
In order to solve the above technical problems, the utility model adopts the following technical solutions: being used for the motor of commerial vehicle
The high gas flow electropneumatic valve of driving, including valve gear, the valve gear have at least one entrance, outlet and exhaust outlet, packet
At least one inlet valve seat and at least one delivery valve seat are included, wherein delivery valve seat is opened and closed by piston, and inlet valve seat is logical
It crosses and is closed and opened by the sealing element that piston moves, the position of the piston is by being applied on the piston by electromechanical assembly
Pressure, the balance of contact force and spring force limited, which is characterized in that the electromechanical assembly includes electric rotating motivation and machinery
The rotary motion of the motor is converted into the linear compression of the spring by transmission device, the mechanical driving device.
The mechanical driving device is screw rod or cam or crank or sliding slot or rack gear.
The mechanical driving device drives by transmission ratio element by the motor
The transmission ratio element is worm gear and/or spur gear and/or helical gear and/or planetary gear and/or cycloid gear
At least one of.
It further include the sensor for measuring the position of at least one transmission components.
The mechanical driving device is moved to piston in the state that motor is not powered on additional springs mutual cooperation
The end position of one restriction.
The mechanical driving device is locked as locking mechanism to prevent the movement as caused by additional springs.
The locking mechanism is discharged by motor drive additional springs.
The locking mechanism is discharged by electromagnetic actuator.
The beneficial effects of the utility model are: only main electric control braking function is achieved that with single electromechanical assembly, because
It is advantageous in this cost；And the stability of maximum braking force, controllability and safe condition when parking has promotion, improves
Emergency brake performance.
Detailed description of the invention
Fig. 1 is valve gear hydraulic control system configuration figure in the utility model；
Fig. 2 is the electropneumatic valve structural schematic diagram of embodiment 1；
Fig. 3 is the electropneumatic valve structural schematic diagram of embodiment 2；
Fig. 4 is the electropneumatic valve structural schematic diagram of embodiment 3；
Fig. 5 is the completely open structural schematic diagram of inlet valve seat of electropneumatic valve in Fig. 4；
Fig. 6 is the electropneumatic valve structural schematic diagram of embodiment 4；
Fig. 7 is locking mechanism structural schematic diagram under unlocked state；
Fig. 8 is locking mechanism structural schematic diagram when mechanical driving device opposite direction moves.
Specific embodiment
As shown in Figure 1, valve gear I passes through pressure provided by air accumulator III, to control the booster brake of commerial vehicle
II。
Embodiment 1: as shown in Fig. 2, valve gear I has entrance 1, outlet 2 and exhaust outlet 3, they have enough cross
Section is to operate the booster brake II of the commerial vehicle with enough air flow powers.Valve gear I further include at least one into
Air valve seat 11 and at least one delivery valve seat 31, wherein delivery valve seat 31 is opened and closed by piston 32, and inlet valve seat 11 passes through
Opened and closed by the mobile sealing element 30 that piston 32 drives, the path of air-flow by shell and mobile sealing element 30 be formed by into
It air valve seat 11 and is formed by delivery valve seat 31 by piston 32 and mobile sealing element 30 and is controlled.
The position of the piston 32 is the pressure, contact force and spring 33 by being applied on the piston by electromechanical assembly
The balance of power is limited.
In the present embodiment, inlet valve seat 11 keeps normally closed by second spring 34.The opening of inlet valve seat 11 passes through shifting
Dynamic seal 30 resists the movement of second spring 34 to solve, which passes through the contact between piston 32 and mobile sealing element 30
Power generates.According to contact existing between piston 32 and mobile sealing element 30 or being not present, delivery valve seat 31 passes through piston 32
Movement and close and open.
The position of piston 32 is limited by the balance of the power acted on piston 32.
Following power acts on piston 32:
Contact force between piston 32 and mobile sealing element 30；
The pressure on 32 surface 32' of piston relevant to 2 pressure of output；
Pressure on the surface 32'' opposite with surface 32' positioned at piston 32 relevant to 2 pressure of output；
Control the spring force of the compression of spring 33；
Frictional force and damping force.
The electromechanical assembly includes electric rotating motivation 60 and mechanical driving device 80, and the mechanical driving device 80 will be described
The rotary motion of motor 60 is converted into the linear compression of the spring 33, and the rotation of motor 60 can compress and release spring
33.That is, the dynamic balance of piston 32 can be broken by motor 60, thus by changing at least one above-mentioned control force
It can realize upcoming dynamic balance (in addition to the power of spring 33).The increase that spring 33 compresses, piston 32 is towards opening
The direction of inlet valve seat 11 is mobile, the reduction of the compression of spring 33, and piston 32 is mobile towards the direction for opening delivery valve seat 31.With
This mode, as long as providing the dynamic balance of piston 32, the variation of the compression of spring 33 will change 3 pressure of exhaust outlet.As a result,
3 pressure of exhaust outlet is proportional to the compression of spring 33, and then the compression of spring 33 is proportional to the position of motor 60, including by
Lag caused by the prestressing force of second spring 34 and friction.
The compression of spring 33 can be adjusted by motor 60 by mechanical transmission mechanism 80, and mechanical transmission mechanism 80 will be electronic
The rotary motion of machine 60 is converted into 33 linear movement of spring.In the present embodiment, the mechanical driving device can be screw rod or
Cam or crank or sliding slot or rack gear.
Embodiment 2: as shown in figure 3, motor 60 can be connected to mechanical transmissioning machine by ratio transmission device 90,91
Structure 80.The ratio transmission device 90,91 can be worm gear or spur gear or helical gear or planetary gear or cycloid gear.
Embodiment 3: as shown in figure 4, mechanical transmission mechanism 80 or ratio transmission device 90,91 or motor 60 is any
Element can be connect with additional springs 100, and when motor 60 is not powered on, mechanical transmission mechanism 80 is moved to by additional springs 100
The settling position of restriction.The settling position of the restriction can be mechanical transmission mechanism 80 and make the delivery valve seat 31 of valve gear I complete
Fully opened position.
As shown in figure 5, the settling position of above-mentioned restriction is also possible to the inlet valve seat that mechanical transmission mechanism 80 makes valve gear I
11 completely open positions.
Embodiment 4: as shown in fig. 6, valve gear I further includes one or more locking mechanisms 110, the mechanical driving device
80 are locked as locking mechanism 110 to prevent the movement as caused by additional springs 100, to inhibit mechanical transmission mechanism 80 at one
Or the movement in multiple defined positions.
Once mechanical transmission mechanism 80 is moved to another position, locking mechanism 110 is controlled by electromagnetic actuator 111 and is carried out
Release.
As shown in fig. 7, locking mechanism 110 is bistable mechanism.It is acted on by electric rotating motivation 60, makes mechanical driving device
80 continue to rotate certain angle in the compression directions of additional springs 100, and then locking mechanism 110 is made to be moved to unlocked state.In
In unlocked state, as shown in figure 8, moving by 80 opposite direction of mechanical driving device, it is again at the hammerlock of locking mechanism 110
Position appropriate.
Claims (9)
1. the high gas flow electropneumatic valve of the motor drive for commerial vehicle, including valve gear (I), the valve gear (I)
With at least one entrance (1), outlet (2) and exhaust outlet (3), including at least one inlet valve seat (11) and at least one exhaust
Valve seat (31), wherein delivery valve seat (31) is opened and closed by piston (32), and inlet valve seat (11) passes through mobile by piston (32)
Sealing element (30) close and open, the position of the piston (32) is the pressure by being applied on the piston by electromechanical assembly
The balance of power, contact force and spring (33) power is limited, which is characterized in that the electromechanical assembly include electric rotating motivation (60) and
The rotary motion of the motor (60) is converted into the spring by mechanical driving device (80), the mechanical driving device (80)
(33) linear compression.
2. the high gas flow electropneumatic valve of the motor drive according to claim 1 for commerial vehicle, feature exist
In the mechanical driving device (80) is screw rod or cam or crank or sliding slot or rack gear.
3. the high gas flow electropneumatic valve of the motor drive according to claim 1 for commerial vehicle, feature exist
In the mechanical driving device (80) is driven by the motor (60) by transmission ratio element (90,91).
4. the high gas flow electropneumatic valve of the motor drive according to claim 3 for commerial vehicle, feature exist
In the transmission ratio element (90,91) is worm gear and/or spur gear and/or helical gear and/or planetary gear and/or cycloid tooth
At least one of wheel.
5. the high gas flow electropneumatic valve of the motor drive according to claim 1 for commerial vehicle, feature exist
In further including the sensor (72) for measuring the position of at least one transmission device (80) element.
6. the high gas flow electropneumatic valve of the motor drive according to claim 1 for commerial vehicle, feature exist
In the mechanical driving device (80) and additional springs (100) mutual cooperation are not powered on piston (32) in motor (60)
State is moved to the end position of a restriction.
7. the high gas flow electropneumatic valve of the motor drive according to claim 6 for commerial vehicle, feature exist
In, including one or more locking mechanisms (110), the mechanical driving device (80) is by locking mechanism (110) locking to prevent
The movement caused by additional springs (100).
8. the high gas flow electropneumatic valve of the motor drive according to claim 7 for commerial vehicle, feature exist
In the locking mechanism (110) discharges the operation of additional springs (100) by motor (60).
9. the high gas flow electropneumatic valve of the motor drive according to claim 7 for commerial vehicle, feature exist
In the locking mechanism (110) is discharged by electromagnetic actuator (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920262384.2U CN209600481U (en) | 2019-03-01 | 2019-03-01 | The high gas flow electropneumatic valve of motor drive for commerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920262384.2U CN209600481U (en) | 2019-03-01 | 2019-03-01 | The high gas flow electropneumatic valve of motor drive for commerial vehicle |
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| Publication Number | Publication Date |
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| CN209600481U true CN209600481U (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920262384.2U Active CN209600481U (en) | 2019-03-01 | 2019-03-01 | The high gas flow electropneumatic valve of motor drive for commerial vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760659A (en) * | 2019-03-01 | 2019-05-17 | 浙江力邦合信智能制动系统股份有限公司 | The high gas flow electropneumatic valve of motor drive for commerial vehicle |
-
2019
- 2019-03-01 CN CN201920262384.2U patent/CN209600481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760659A (en) * | 2019-03-01 | 2019-05-17 | 浙江力邦合信智能制动系统股份有限公司 | The high gas flow electropneumatic valve of motor drive for commerial vehicle |
| CN109760659B (en) * | 2019-03-01 | 2023-12-26 | 浙江力邦合信智能制动系统股份有限公司 | Motor-driven high-airflow electro-pneumatic valve for commercial vehicles |
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