CN113859212A - Explosion-proof pure electric SUV full hydraulic braking system with multiple safety guarantees - Google Patents
Explosion-proof pure electric SUV full hydraulic braking system with multiple safety guarantees Download PDFInfo
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- CN113859212A CN113859212A CN202111346204.7A CN202111346204A CN113859212A CN 113859212 A CN113859212 A CN 113859212A CN 202111346204 A CN202111346204 A CN 202111346204A CN 113859212 A CN113859212 A CN 113859212A
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- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000009977 dual effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
- B60T13/161—Systems with master cylinder
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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
- B60T15/025—Electrically controlled valves
- B60T15/028—Electrically controlled valves in hydraulic systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses an explosion-proof pure electric SUV full hydraulic brake system with multiple safety guarantees, which mainly comprises a double pump, an oil tank, an oil filter, a double-loop liquid charging valve, an energy accumulator, a double-loop foot valve, a handle valve, a front wheel wet brake and a rear wheel wet brake; the full hydraulic braking system further comprises a two-position three-way ball valve, the two-position three-way ball valve is located between an SW port of the double-loop liquid charging valve and an oil inlet of the handle valve, and the other port of the two-position three-way ball valve is connected with an oil pumping loop in parallel and connected with an oil tank. And a two-position three-way ball valve is also connected in series in the parking oil path and is used for connecting a manual oil pumping loop in parallel, and the manual brake mode is released by changing the oil path of the switching ball valve. The mine underground command vehicle braking system is clear in principle and high in safety, can be effectively suitable for design of a braking system of a mine underground command vehicle, and compared with the existing market braking principle, a plurality of failure safety guarantee measures are added, so that the mine underground braking safety of the vehicle can be effectively guaranteed.
Description
Technical Field
The invention belongs to an automobile braking system, and particularly relates to an explosion-proof pure electric SUV full hydraulic braking system with multiple safety guarantees.
Background
At present, along with the continuous expansion of mining industry, the matched explosion-proof trackless rubber-tyred vehicle is widely applied, and most of the explosion-proof trackless rubber-tyred vehicles are reformed based on vehicle types such as pickup trucks or light trucks. At present, most vehicles adopt a full hydraulic brake system and a wet brake, and the whole system belongs to a full closed type and can be used in a severe mine environment.
Problems and disadvantages of the prior art:
the braking system is also an important part in mine running, and is related to the life safety of personnel in the vehicle and workers in the mine, and the problems that the vehicle in the market cannot provide high-pressure oil when an oil pump fails, the vehicle is out of control when the whole vehicle is powered off and the like are not effectively solved.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an explosion-proof all-electric SUV full hydraulic brake system with multiple safety guarantees, wherein a power-off protection device and a brake loop for breaking high voltage and manually releasing brake are added to the brake system, and a wet brake adopts a multifunctional brake integrating traveling and parking, so as to satisfy fail-safe type.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an explosion-proof pure electric SUV full hydraulic brake system with multiple safety guarantees mainly comprises a double pump, an oil tank, an oil filter, a double-loop liquid charging valve, an energy accumulator, a double-loop foot valve, a handle valve, a front wheel wet brake and a rear wheel wet brake;
the oil filter oil outlet is communicated with an oil inlet of a double-loop liquid charging valve, two oil outlets of the double-loop liquid charging valve are connected to two energy accumulators, the energy accumulators are communicated with the oil inlet of a double-loop foot valve, and the energy accumulators are conveyed to service oil cavity oil inlets of a front wheel wet brake and a rear wheel wet brake through the oil outlets of the double-loop foot valve;
and an SW port of the double-loop liquid filling valve is communicated with an oil inlet of the handle valve and is conveyed to a parking oil cavity of the rear wheel wet brake through an oil outlet of the handle valve.
The further technology of the invention is as follows:
preferably, overflow valves are arranged on oil paths of the oil outlet of the duplex pump and the oil inlet of the oil filter.
Preferably, the overflow valve, the double-loop liquid filling valve, the double-loop foot valve and the handle valve are all provided with oil return ports, and the oil return ports are communicated with an oil return port of the oil tank.
Preferably, the full hydraulic braking system further comprises a two-position three-way ball valve, the two-position three-way ball valve is located between the SW port of the double-loop liquid charging valve and the oil inlet of the handle valve, and the other port of the two-position three-way ball valve is connected with an oil pumping loop in parallel to be connected with an oil tank.
Preferably, a hand oil pump is arranged on the oil pumping loop.
Preferably, a pressure gauge is arranged on an oil path between the oil outlet of the double-loop foot valve and the oil inlet of the service oil cavity of the front wheel wet brake and the oil inlet of the rear wheel wet brake.
Preferably, an electromagnetic valve is arranged on an oil path between an oil outlet of the handle valve and a parking oil chamber of the rear wheel wet brake.
The invention has the following technical effects:
the mine underground command vehicle braking system is clear in principle and high in safety, can be effectively suitable for design of a braking system of a mine underground command vehicle, and compared with the existing market braking principle, a plurality of failure safety guarantee measures are added, so that the mine underground braking safety of the vehicle can be effectively guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic diagram of a full hydraulic braking principle of a whole vehicle;
FIG. 2 is an enlarged schematic view of a dual circuit prefill valve;
FIG. 3 is an enlarged schematic view of a dual circuit foot valve;
FIG. 4 is an enlarged schematic view of the handle valve and solenoid valve;
the designations in the above figures illustrate: 1-a tandem pump; 2-oil filter; 3-an overflow valve; 4-a dual circuit prefill valve; 5-an accumulator; 6-double loop foot valve; 7-a handle valve; 8-two-position three-way ball valve; 9-a hand oil pump; 10-an electromagnetic valve; 11-a fuel tank; 13-pressure gauge; 15-front wheel wet brake; 16-rear wheel wet brake.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the invention provides an explosion-proof pure electric SUV full hydraulic brake system with multiple safety guarantees, which is modified by taking an SUV model as a platform, and the comfort of the whole vehicle is far superior to that of most models in the market.
The hydraulic brake system mainly comprises a double pump 1, an oil tank 11, an oil filter 2, a double-loop liquid charging valve 4, an energy accumulator 5, a double-loop foot valve 6, a handle valve 7, a front wheel wet brake 15 and a rear wheel wet brake 16;
an oil inlet of one pump head of the dual pump 1 is connected with an oil outlet of an oil tank 11, an oil outlet of the dual pump 1 is connected with an oil inlet of an oil filter 2, an oil outlet of the oil filter 2 is communicated with an oil inlet P of a dual-circuit liquid charging valve 4, two oil outlets A1 and A2 of the dual-circuit liquid charging valve 4 are connected to two energy accumulators 5, the energy accumulators 5 are communicated with oil inlets P1 and P2 of a dual-circuit foot valve 6, and are conveyed to service oil cavity oil inlets of a front wheel wet brake 15 and a rear wheel wet brake 16 through oil outlets A1 and A2 of the dual-circuit foot valve 6;
and an SW port of the double-loop liquid charging valve 4 is communicated with an oil inlet P of the handle valve 7 and is conveyed to a parking oil cavity of a rear wheel wet brake 16 through an oil outlet A of the handle valve 7.
The oil outlets A1 and A2 of the double-loop foot valve 6 are transmitted to service oil cavity oil inlets of a front wheel wet brake 15 and a rear wheel wet brake 16, and service braking is finally realized; besides, the SW port of the dual-circuit liquid charging valve 4 is communicated with the P port of the handle valve 7, and is conveyed to the parking oil cavity of the rear axle wet brake 16 through the A port of the handle valve 7 to jack the spring, so that parking release is realized.
And an overflow valve 3 is arranged on an oil path between the oil outlet of the duplex pump 1 and the oil inlet of the oil filter 2.
The overflow valve 3, the double-loop liquid filling valve 4, the double-loop foot valve 6 and the handle valve 7 are all provided with oil return ports T which are communicated with an oil return port of the oil tank 11.
The full hydraulic braking system further comprises a two-position three-way ball valve 8, the two-position three-way ball valve 8 is located between the SW port of the double-loop liquid charging valve 4 and the oil inlet P of the handle valve 7, and the other port of the two-position three-way ball valve 8 is connected with an oil pumping loop in parallel to be connected with an oil tank 11.
And a two-position three-way ball valve 8 is also connected in series in the parking oil path and is used for connecting a manual oil pumping loop in parallel, and the manual brake mode is released by changing the oil path of the switching ball valve.
And an electromagnetic valve 10 is arranged on an oil path between an oil outlet of the handle valve 7 and a parking oil chamber of the rear wheel wet brake 16. The electromagnetic valve is also a three-way electromagnetic valve and plays a role in switching oil ways.
And a hand oil pump 9 is arranged on the oil pumping loop.
And a pressure gauge 13 is arranged on an oil path between an oil outlet of the double-loop foot valve 6 and oil inlets of a driving oil cavity of the front wheel wet brake 15 and the rear wheel wet brake 16.
When the whole vehicle is in different vehicle conditions, the working process of the braking system is as follows:
when the whole vehicle runs under normal working conditions, the port 1 and the port 3 of the two-position three-way ball valve 8 are normally open, and the port 1 and the port 2 of the two-position three-way ball valve 8 are also communicated because the electromagnetic valve 10 is in an electrified state. At the moment, a driver can open and conduct the port P and the port A of the double-loop foot valve 6 by stepping on the foot brake, high-pressure oil stored in the energy accumulator 5 is conveyed to the brake, the piston is pushed to press a static friction plate, service braking is achieved, and pedal-released braking is relieved; when the handle valve 7 is pulled up, the port A of the handle valve 7 is communicated with the port T of the oil return port, high-pressure oil in the parking oil cavity is discharged back to the oil tank 11, parking braking is formed by the restoring force of the original spring, the spring is jacked open by the high-pressure oil in a normal running state, and the hand brake is released.
When the whole vehicle is in a pressure loss state and wheels are locked, the high-pressure oil stored in the energy accumulator 5 can be used for carrying out 7-10 times of service braking and multiple times of parking braking release; if the high-pressure oil in the energy accumulator 5 is consumed, the oil can be pumped manually by using the manual oil pump 9 by switching the two-position three-way ball valve 8 so as to relieve the locking.
If the vehicle is in a driving process, a power failure fault normally occurs, at the moment, the solenoid valve 8 is switched off due to power failure and oil circuit change, the port 2 of the solenoid valve 8 is disconnected, the port 81 and the port 3 of the oil return port of the solenoid valve are simultaneously switched on, the high-pressure oil in the parking process unloads the oil return tank, the wheels are locked for parking, the vehicle stops running, and the risk that the driver has untimely response and brake delay accidents is reduced. The brake system is safer and more reliable than the existing brake system in the market.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the present invention, features are not necessarily present in isolation, but are interleaved with each other unless explicitly stated or limited. The foregoing shows and describes the principles, essential features, and advantages of the invention. Those skilled in the art should appreciate that the present invention is not limited to the above-described embodiments, and the above-described embodiments and descriptions are only preferred examples of the present invention, and are not intended to limit the present invention to the only choice. The invention may be further modified and optimized within the spirit and scope of the appended claims, all changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. The utility model provides an explosion-proof pure electric SUV full hydraulic braking system of many safety guarantee which characterized in that: the hydraulic brake system mainly comprises a double pump (1), an oil tank (11), an oil filter (2), a double-loop liquid charging valve (4), an energy accumulator (5), a double-loop foot valve (6), a handle valve (7), a front wheel wet brake (15) and a rear wheel wet brake (16);
an oil inlet of one pump head of the dual pump (1) is connected with an oil outlet of an oil tank (11), an oil outlet of the dual pump (1) is connected with an oil inlet of an oil filter (2), an oil outlet of the oil filter (2) is communicated with an oil inlet of a dual-loop liquid charging valve (4), two oil outlets of the dual-loop liquid charging valve (4) are connected to two energy accumulators (5), the energy accumulators (5) are communicated with oil inlets of dual-loop foot valves (6), and the oil outlets of the dual-loop foot valves (6) are conveyed to service oil inlets of a front wheel wet brake (15) and a rear wheel wet brake (16);
an SW port of the double-loop liquid charging valve (4) is communicated with an oil inlet of the handle valve (7) and is conveyed to a parking oil cavity of the rear wheel wet brake (16) through an oil outlet of the handle valve (7).
2. The full hydraulic braking system of the explosion-proof electric SUV with multiple safety guarantees as claimed in claim 1, wherein: and overflow valves (3) are arranged on oil paths of the oil outlet of the duplex pump (1) and the oil inlet of the oil receiving filter (2).
3. The full hydraulic braking system of the explosion-proof electric SUV with multiple safety guarantees as claimed in claim 2, wherein: the overflow valve (3), the double-loop liquid filling valve (4), the double-loop foot valve (6) and the handle valve (7) are all provided with oil return ports which are communicated with an oil return port of the oil tank (11).
4. The full hydraulic braking system of the explosion-proof electric SUV with multiple safety guarantees as claimed in claim 1, wherein: the full hydraulic braking system further comprises a two-position three-way ball valve (8), the two-position three-way ball valve (8) is located between an SW opening of the double-loop liquid charging valve (4) and an oil inlet of the handle valve (7), and the other opening of the two-position three-way ball valve (8) is connected with an oil pumping loop in parallel to be connected with an oil tank (11).
5. The full hydraulic braking system of the explosion-proof electric SUV with multiple safety guarantees as claimed in claim 1, wherein: and a hand oil pump (9) is arranged on the oil pumping loop.
6. The full hydraulic braking system of the explosion-proof electric SUV with multiple safety guarantees as claimed in claim 1, wherein: and a pressure gauge (13) is arranged on an oil path between an oil outlet of the double-loop foot valve (6) and oil inlets of a running oil cavity of the front wheel wet brake (15) and the rear wheel wet brake (16).
7. The full hydraulic braking system of the explosion-proof electric SUV with multiple safety guarantees as claimed in claim 1, wherein: an electromagnetic valve (10) is arranged on an oil path between an oil outlet of the handle valve (7) and a parking oil chamber of the rear wheel wet brake (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346204.7A CN113859212A (en) | 2021-11-15 | 2021-11-15 | Explosion-proof pure electric SUV full hydraulic braking system with multiple safety guarantees |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346204.7A CN113859212A (en) | 2021-11-15 | 2021-11-15 | Explosion-proof pure electric SUV full hydraulic braking system with multiple safety guarantees |
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| Publication Number | Publication Date |
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| CN113859212A true CN113859212A (en) | 2021-12-31 |
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| CN202111346204.7A Pending CN113859212A (en) | 2021-11-15 | 2021-11-15 | Explosion-proof pure electric SUV full hydraulic braking system with multiple safety guarantees |
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| CN212839072U (en) * | 2020-06-13 | 2021-03-30 | 天津同力重工有限公司 | Oil circuit system for wet brake of underground locomotive |
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2021
- 2021-11-15 CN CN202111346204.7A patent/CN113859212A/en active Pending
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| CN102120447A (en) * | 2011-03-04 | 2011-07-13 | 安徽合力股份有限公司 | Forklift hydraulic system matched with multi-functional wet brakes |
| CN102514562A (en) * | 2011-12-03 | 2012-06-27 | 中国煤炭科工集团太原研究院 | Double-tube fully-hydraulic braking device with closed wet-type multi-disc brakes for coal mine explosion-proof vehicle |
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