CN208474211U - A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system - Google Patents
A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system Download PDFInfo
- Publication number
- CN208474211U CN208474211U CN201820703002.0U CN201820703002U CN208474211U CN 208474211 U CN208474211 U CN 208474211U CN 201820703002 U CN201820703002 U CN 201820703002U CN 208474211 U CN208474211 U CN 208474211U
- Authority
- CN
- China
- Prior art keywords
- hydraulic fluid
- fluid port
- directional control
- pilot operated
- operated directional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of Full-hydraulic braking apparatus filling liquid valve group and its control system, including valve body, check valve is installed on valve body, sequence valve, accumulator, 2/2-way pilot operated directional control valve, two-bit triplet pilot operated directional control valve, first hydraulic fluid port P and two-bit triplet pilot operated directional control valve hydraulic fluid port I, two-bit triplet pilot operated directional control valve hydraulic fluid port IV communicates, two-bit triplet pilot operated directional control valve hydraulic fluid port II is communicated with check valve hydraulic fluid port I, two-bit triplet pilot operated directional control valve hydraulic fluid port III and third hydraulic fluid port A, sequence valve hydraulic fluid port I, 2/2-way pilot operated directional control valve hydraulic fluid port III communicates, two-bit triplet pilot operated directional control valve hydraulic fluid port V and sequence valve hydraulic fluid port II, 2/2-way pilot operated directional control valve hydraulic fluid port I, accumulator hydraulic fluid port I communicates, second hydraulic fluid port T is communicated with check valve hydraulic fluid port II, sequence valve hydraulic fluid port III and the 4th hydraulic fluid port T1, 2/2-way pilot operated directional control valve hydraulic fluid port II, 2/2-way pilot operated directional control valve hydraulic fluid port IV communicate.The utility model has the function of that the accumulation of energy of system low-voltage automatic liquid feeding, high pressure automatic deloading and wide area pressure are kept.
Description
Technical field
The utility model relates to wheeled vehicle braking system technical fields, and in particular to a kind of Full-hydraulic braking apparatus filling liquid valve group
And its control system.
Background technique
With car speed, vehicle load be continuously increased and braking system reliability, stability requirement constantly mention
It rises, tradition machinery braking, gas are braked, gas-liquid brake system has been unable to satisfy stopping power, the need of intelligent brake, brake accuracy
It asks, is gradually substituted by brake fluid system, the core component accumulation of energy control valve group of brake fluid system mainly relies on import at present,
And it is high to use the domestic part of high pressure kicks accumulation of energy to be lost, and source component long-time high-pressure work causes the service life to decline.Therefore,
A kind of Full-hydraulic braking apparatus filling liquid valve group is badly in need of in this field, to realize the accumulation of energy of braking system low pressure automatic liquid feeding, high pressure automatic deloading
And the functions such as wide area pressure holding.
Utility model content
To solve above-mentioned the deficiencies in the prior art, the utility model provide a kind of Full-hydraulic braking apparatus filling liquid valve group and
Its control system has the function of the accumulation of energy of system low-voltage automatic liquid feeding, high pressure automatic deloading and the holding of wide area pressure etc., unloads simultaneously
Lotus pressure can be adjusted freely according to demand with pressure hold in range.
The purpose of this utility model is realized by following technological means:
A kind of Full-hydraulic braking apparatus filling liquid valve group, including it is provided with the first hydraulic fluid port P, the second hydraulic fluid port T, third hydraulic fluid port A, the 4th oil
The valve body of mouthful T1 is equipped with check valve on valve body, sequence valve, accumulator, 2/2-way pilot operated directional control valve, two-bit triplet hydraulic control are changed
To valve, the first hydraulic fluid port P is communicated with two-bit triplet pilot operated directional control valve hydraulic fluid port I, two-bit triplet pilot operated directional control valve hydraulic fluid port IV, two-bit triplet
Pilot operated directional control valve hydraulic fluid port II is communicated with check valve hydraulic fluid port I, two-bit triplet pilot operated directional control valve hydraulic fluid port III and third hydraulic fluid port A, sequence valve
Hydraulic fluid port I, 2/2-way pilot operated directional control valve hydraulic fluid port III communicate, two-bit triplet pilot operated directional control valve hydraulic fluid port V and sequence valve hydraulic fluid port II, two
Two logical pilot operated directional control valve hydraulic fluid ports I of position, accumulator hydraulic fluid port I communicate, and the second hydraulic fluid port T is communicated with check valve hydraulic fluid port II, sequence valve hydraulic fluid port
III and the 4th hydraulic fluid port T1, 2/2-way pilot operated directional control valve hydraulic fluid port II, 2/2-way pilot operated directional control valve hydraulic fluid port IV communicate.
The check valve is spring pre-profiling check valve.
The 2/2-way pilot operated directional control valve is low-leak type cone valve or the slide valve with sealing.
The two-bit triplet pilot operated directional control valve is the slide valve or type pilot cone valve of low-leak type band sealing.
The utility model also provides a kind of control system of Full-hydraulic braking apparatus filling liquid valve group, uses full liquid as described above
Suppress dynamic filling liquid valve group.
Compared with prior art, the beneficial effects of the utility model are as follows:
1. the utility model has the accumulation of energy of low pressure automatic liquid feeding, when braking system energy-storage pressure is lower than maximum working pressure
Automatic energy accumulating is carried out, removes external signal control from, improves system reliability；
2. having high pressure automatic deloading, when energy-storage pressure reaches maximum working pressure (MWP), filling liquid supplies oil sources automatic deloading,
Energy loss caused by high pressure kicks, system oil temperature is avoided to increase the defect to radiate again, while improving the use of dynamical element
Service life；
3. having wide area pressure to keep, minimum operating pressure and highest work pressure can be maintained at by meeting energy storage equipment oil pressure
Between power, and it is avoided that supply oil sources overflow；
4. having minimum operating pressure adjustable with maximum working pressure, meet the function and performance need of different equipments and system
It asks.
Detailed description of the invention
Fig. 1 is the principles of the present invention schematic diagram.
Fig. 2 is the schematic illustration of the control system of the utility model.
Wherein, 1 is check valve；2 be sequence valve；3 be accumulator；4 be 2/2-way pilot operated directional control valve；5 be two-bit triplet
Pilot operated directional control valve；6 be valve body；7 safety valves；8 hydraulic pumps；9 control valves；10 accumulators II.
Specific embodiment
As shown in Figure 1, a kind of Full-hydraulic braking apparatus filling liquid valve group, including it is provided with the first hydraulic fluid port P, the second hydraulic fluid port T, third oil
The valve body 6 of mouthful A, the 4th hydraulic fluid port T1 are equipped with check valve 1, sequence valve 2, accumulator 3,2/2-way pilot operated directional control valve on valve body 6
4, two-bit triplet pilot operated directional control valve 5, the first hydraulic fluid port P and 5 hydraulic fluid port I of two-bit triplet pilot operated directional control valve, two-bit triplet pilot operated directional control valve 5
Hydraulic fluid port IV communicates, and 5 hydraulic fluid port II of two-bit triplet pilot operated directional control valve is communicated with 1 hydraulic fluid port I of check valve, 5 oil of two-bit triplet pilot operated directional control valve
Mouth III is communicated with third hydraulic fluid port A, 2 hydraulic fluid port I of sequence valve, 4 hydraulic fluid port III of 2/2-way pilot operated directional control valve, two-bit triplet pilot operated directional control valve
5 hydraulic fluid ports V are communicated with 2 hydraulic fluid port II of sequence valve, 4 hydraulic fluid port I of 2/2-way pilot operated directional control valve, 3 hydraulic fluid port I of accumulator, the second hydraulic fluid port T with
1 hydraulic fluid port II of check valve communicates, 2 hydraulic fluid port III of sequence valve and the 4th hydraulic fluid port T1, 4 hydraulic fluid port of 2/2-way pilot operated directional control valve II, two two
Logical 4 hydraulic fluid port IV of pilot operated directional control valve communicates.Setting 2/2-way pilot operated directional control valve 4 in advance, so that when energy-storage pressure is more than two two
After logical pilot operated directional control valve 4 sets pressure, 2/2-way pilot operated directional control valve 4 commutates and works in oil level.
Preferably, the check valve 1 is spring pre-profiling check valve.
Preferably, the 2/2-way pilot operated directional control valve 4 is low-leak type cone valve or the slide valve with sealing.
Preferably, the two-bit triplet pilot operated directional control valve 5 is the slide valve or type pilot cone valve of low-leak type band sealing.
The utility model also provides a kind of control system of Full-hydraulic braking apparatus filling liquid valve group, uses full liquid as described above
Dynamic filling liquid valve group is suppressed, has the function of hydraulic energy-accumulating.
A kind of control system of Full-hydraulic braking apparatus filling liquid valve group is as shown in Fig. 2, the first hydraulic fluid port P on valve body 6 and hydraulic pump 8
Actuator port, the connection of 7 oil inlet of safety valve, the second hydraulic fluid port T and the 4th hydraulic fluid port T1It is connected to respectively with fuel tank, third hydraulic fluid port A and storage
It can II 10 actuator port of device, the connection of 9 oil inlet of control valve.System of the control system of Full-hydraulic braking apparatus filling liquid valve group in addition to Fig. 2
Structure can also be that other include the connection structure of Full-hydraulic braking apparatus filling liquid valve group.
The course of work of the utility model is as follows:
As shown in Figure 1 and Figure 2, when initial launch, hydraulic pump output hydraulic pressure oil enters two-bit triplet hydraulic control through the first hydraulic fluid port P
5 hydraulic fluid port I of reversal valve and hydraulic fluid port IV flow out into 1 hydraulic fluid port I of check valve from 5 hydraulic fluid port II of two-bit triplet pilot operated directional control valve, due to list
It is acted on to the spring pre-tightening of valve 1, the pressure oil active force for acting on 5 hydraulic fluid port IV of two-bit triplet pilot operated directional control valve overcomes two-bit triplet liquid
The spring force at control 5 hydraulic fluid port of reversal valve, V end makes two-bit triplet pilot operated directional control valve 5 commutate, and works in left position (by hydraulic control), liquid
Pressure oil is connected to hydraulic oil from 5 hydraulic fluid port I of two-bit triplet pilot operated directional control valve from 5 hydraulic fluid port III of two-bit triplet pilot operated directional control valve, hydraulic oil
Entering accumulator from 5 hydraulic fluid port III of two-bit triplet pilot operated directional control valve, third hydraulic fluid port A and realizes filling liquid accumulation of energy, energy-storage pressure gradually rises,
After energy-storage pressure is more than that 2/2-way pilot operated directional control valve 4 sets pressure, 2/2-way pilot operated directional control valve 4 commutates and works in oil
Position, 5 hydraulic fluid port V of two-bit triplet pilot operated directional control valve and the 4th hydraulic fluid port T1It is obstructed with fuel tank, continue to increase with supercharging pressure, when
Energy-storage pressure is more than after sequence valve 2 sets pressure, and hydraulic oil enters two three by 2 hydraulic fluid port I of sequence valve, 2 hydraulic fluid port II of sequence valve
Logical 5 hydraulic fluid port V of pilot operated directional control valve, 3 hydraulic fluid port I of accumulator, 5 hydraulic fluid port of two-bit triplet pilot operated directional control valve, V hydraulic action and two three
When the resultant force of logical 5 hydraulic fluid port of pilot operated directional control valve, V spring force is greater than 5 IV hydraulic action of hydraulic fluid port of two-bit triplet pilot operated directional control valve, two
Threeway pilot operated directional control valve 5 commutates and works in right position, and hydraulic pump output hydraulic pressure oil is from the first hydraulic fluid port P, two-bit triplet liquid controlled reversing
5 hydraulic fluid port I of valve, 5 hydraulic fluid port II of two-bit triplet pilot operated directional control valve, 1 hydraulic fluid port I of check valve, 1 hydraulic fluid port II of check valve, the second hydraulic fluid port T enter oil
Case realizes the direct off-load of hydraulic pump output hydraulic pressure, while 3 liquid storage pressure oils of accumulator can supplement two-bit triplet pilot operated directional control valve
The leakage of 5 hydraulic fluid ports V and 2/2-way pilot operated directional control valve 4, to guarantee that 5 long-time of two-bit triplet pilot operated directional control valve is maintained at right position
Work, to realize high pressure automatic deloading and the function that wide area pressure is kept.
When accumulator is because using pressure reduction, when connection accumulator, the first hydraulic fluid port P, 4 hydraulic fluid port of 2/2-way pilot operated directional control valve
When 3 hydraulic fluid pressure is lower than balance 4 hydraulic fluid port of 2/2-way pilot operated directional control valve, IV end spring force, 2/2-way pilot operated directional control valve 4
It commutates and works in left position, 4 hydraulic fluid port I of 2/2-way pilot operated directional control valve is connected to 4 hydraulic fluid port II of 2/2-way pilot operated directional control valve, simultaneously
It is logical to be connected to 5 hydraulic fluid port V of two-bit triplet pilot operated directional control valve, 3 hydraulic fluid port I of accumulator, the hydraulic oil of 4 hydraulic fluid port I of 2/2-way pilot operated directional control valve
4 hydraulic fluid port I of 2/2-way pilot operated directional control valve, 4 hydraulic fluid port II of 2/2-way pilot operated directional control valve are crossed into fuel tank, from the first hydraulic fluid port P, two
5 hydraulic fluid port I of threeway pilot operated directional control valve, 5 hydraulic fluid port II of two-bit triplet pilot operated directional control valve enter the hydraulic oil of check valve 1 in 1 bullet of check valve
The spring force that 5 hydraulic fluid port of two-bit triplet pilot operated directional control valve, V end is overcome under the effect of spring pretightning force, changes two-bit triplet pilot operated directional control valve 5
To work in left position, it is connected to the first hydraulic fluid port P and third hydraulic fluid port A, filling liquid accumulation of energy again is carried out, to realize low pressure automatic liquid feeding accumulation of energy
Function, system by principles above iterative cycles work.
Claims (5)
1. a kind of Full-hydraulic braking apparatus filling liquid valve group, it is characterised in that: including being provided with the first hydraulic fluid port P, the second hydraulic fluid port T, third oil
Mouth A, the 4th hydraulic fluid port T1Valve body (6), check valve (1), sequence valve (2), accumulator (3), 2/2-way are installed on valve body (6)
Pilot operated directional control valve (4), two-bit triplet pilot operated directional control valve (5), the first hydraulic fluid port P and two-bit triplet pilot operated directional control valve (5) hydraulic fluid port I, two
Position threeway pilot operated directional control valve (5) hydraulic fluid port IV communicates, two-bit triplet pilot operated directional control valve (5) hydraulic fluid port II and I phase of check valve (1) hydraulic fluid port
It is logical, two-bit triplet pilot operated directional control valve (5) hydraulic fluid port III and third hydraulic fluid port A, sequence valve (2) hydraulic fluid port I, 2/2-way pilot operated directional control valve
(4) hydraulic fluid port III communicates, two-bit triplet pilot operated directional control valve (5) hydraulic fluid port V and sequence valve (2) hydraulic fluid port II, 2/2-way pilot operated directional control valve
(4) hydraulic fluid port I, accumulator (3) hydraulic fluid port I communicate, and the second hydraulic fluid port T is communicated with check valve (1) hydraulic fluid port II, sequence valve (2) hydraulic fluid port III with
4th hydraulic fluid port T1, 2/2-way pilot operated directional control valve (4) hydraulic fluid port II, 2/2-way pilot operated directional control valve (4) hydraulic fluid port IV communicate.
2. Full-hydraulic braking apparatus filling liquid valve group according to claim 1, it is characterised in that: the check valve (1) is that spring is pre-
Die mould check valve.
3. Full-hydraulic braking apparatus filling liquid valve group according to claim 1, it is characterised in that: the 2/2-way pilot operated directional control valve
It (4) is low-leak type cone valve or the slide valve with sealing.
4. Full-hydraulic braking apparatus filling liquid valve group according to claim 1, it is characterised in that: the two-bit triplet pilot operated directional control valve
It (5) is the slide valve or type pilot cone valve of the sealing of low-leak type band.
5. the control system of Full-hydraulic braking apparatus filling liquid valve group according to claim 1, it is characterised in that: it is used such as right
It is required that Full-hydraulic braking apparatus filling liquid valve group described in any one of 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820703002.0U CN208474211U (en) | 2018-05-11 | 2018-05-11 | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820703002.0U CN208474211U (en) | 2018-05-11 | 2018-05-11 | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474211U true CN208474211U (en) | 2019-02-05 |
Family
ID=65221394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820703002.0U Active CN208474211U (en) | 2018-05-11 | 2018-05-11 | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533537A (en) * | 2018-05-11 | 2018-09-14 | 郑州宇通重工有限公司 | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system |
| CN110513472A (en) * | 2019-09-24 | 2019-11-29 | 洛阳智能农业装备研究院有限公司 | A kind of agricultural machinery automatic transmission control oil sources block |
-
2018
- 2018-05-11 CN CN201820703002.0U patent/CN208474211U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533537A (en) * | 2018-05-11 | 2018-09-14 | 郑州宇通重工有限公司 | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system |
| CN110513472A (en) * | 2019-09-24 | 2019-11-29 | 洛阳智能农业装备研究院有限公司 | A kind of agricultural machinery automatic transmission control oil sources block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103883338B (en) | A kind of hydraulic support column self-boosting system containing hydraulic intensifier | |
| CN201786795U (en) | Hydraulic pressure stop valve | |
| CN201779083U (en) | Hydraulic control system | |
| CN208474211U (en) | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system | |
| CN104029721B (en) | Loader hydraulic transfer | |
| CN108533537A (en) | A kind of Full-hydraulic braking apparatus filling liquid valve group and its control system | |
| CN105757016A (en) | Hydraulic control system of supercharging device | |
| CN102748506B (en) | Electro-hydraulic pilot control switch valve bank | |
| CN201671899U (en) | Hydraulic overflow buffer circuit for mechanical arm | |
| CN201513403U (en) | Multistage cylinder integrated control hydraulic valve group | |
| CN201799552U (en) | Hydraulic system for proportional overflow pressure relief for hydraulic forging press | |
| CN102536924A (en) | Single-hydraulic cylinder single-acting hydraulic system of supercharger | |
| CN204113788U (en) | The Embedded shunting relief valve of a kind of shuttle valve | |
| CN103836019A (en) | Fast-charging hydraulic shift valve | |
| CN203614481U (en) | Stacked liquid-control unidirectional valve | |
| CN105422539A (en) | Two-circuit multi-way directional valve and in-parallel installation method of two-circuit multi-way directional valve with oil cylinders | |
| CN210423203U (en) | Hydraulic pressure maintaining and self-unloading energy-saving valve group | |
| CN103912534A (en) | Constant-difference overflow valve with unloading function | |
| CN211550114U (en) | Pressurizing hydraulic system | |
| CN104712798A (en) | Combined pressure relief valve | |
| CN101979868A (en) | Spindle brake device for wind power generation hydraulic system | |
| CN108266413B (en) | Asymmetric electro-hydrostatic actuator based on pressure selection valve | |
| CN220816099U (en) | Energy-saving integrated oil source block system | |
| CN201201584Y (en) | Pressure control valve of buffer air inlet system for automobile | |
| CN204476902U (en) | A kind of load-sensitive valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |