CN109854649B - External circulation cooling system of wet brake - Google Patents
External circulation cooling system of wet brake Download PDFInfo
- Publication number
- CN109854649B CN109854649B CN201910073318.5A CN201910073318A CN109854649B CN 109854649 B CN109854649 B CN 109854649B CN 201910073318 A CN201910073318 A CN 201910073318A CN 109854649 B CN109854649 B CN 109854649B
- Authority
- CN
- China
- Prior art keywords
- brake
- oil
- cooler
- cooling
- engine
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention provides an external circulation cooling system of a wet brake, which is used for cooling the brake and comprises an oil tank, an oil pump and a cooler, wherein an engine flywheel is used as a power source, an air cooling motor of the cooler is powered by a vehicle-mounted power supply, the oil pump conveys oil in the oil tank to the cooler for cooling, the oil enters the brake for cooling, and oil in the brake flows back to the oil tank to form a circulation loop. The oil pump takes power from the engine flywheel, works along with the change of the engine rotating speed, the lowest rotating speed of the engine is the idling rotating speed, the condition of extremely low rotating speed cannot occur, and the oil pump still continues to work under the condition that the vehicle is not flamed out and stopped, so that the external circulation system can realize continuous circulation when the engine is started; the cooler is powered by a vehicle-mounted power supply, the fan can work after the vehicle is powered on, and the rotating speed is stable and is not influenced by the running speed of the vehicle; the electronic fan can also adjust the rotating speed of the fan along with the temperature of the brake, so that the temperature stability of the brake is ensured.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to an automobile brake cooling system, in particular to an external circulation cooling system of an automobile wet brake.
[ background of the invention ]
The operating principle of existing automotive wet brake braking systems is to utilize the mutual friction between a non-rotating element connected to the vehicle body (or frame) and a rotating element connected to the wheel (or drive shaft) to resist the wheel's rotation or tendency to rotate. When a driver steps on a brake pedal to enable a piston to compress brake fluid, a wheel cylinder piston presses a brake shoe to a brake drum under the action of hydraulic pressure to form friction force, and the friction force enables the brake drum to reduce the rotation speed or keep the brake drum still.
When the brake works, the temperature of the brake is increased by heat generated by friction of the brake block, and the temperature of the brake is continuously increased due to the closed brake oil cavity of the brake, so that the braking performance is attenuated when the temperature is too high, and the driving safety is influenced.
It is known from the search of the related art that, in the existing external circulation cooling system, the power source is taken from the main reducer of the drive axle, and the oil pump and the fan of the radiator are driven to work through the rotation of the gear of the main reducer, so that the flowing of the external circulation system and the cooling function of the radiator are realized. However, this solution has some drawbacks. Firstly, the power source of the external circulation system is taken from the main reducer of the drive axle, because the rotating speed of the drive axle is correspondingly changed along with the start-up and stop of the vehicle in the running process of the vehicle, the external circulation system stops working in the state that the rotating speed of the drive axle is extremely low and stopped, and the brake can not be continuously cooled, secondly, the fan of the radiator takes power from the gear of the main reducer of the drive axle, and the rotating speed of the drive axle is continuously changed, so that the fan can not work at a stable rotating speed, and the cooling effect is influenced. Finally, in the prior art, power is taken from a main speed reducer gear of a drive axle, a transmission device needs to be added in an axle housing, the machining process is complex, and the implementation cost is high.
Therefore, the existing external circulation cooling technology can not continuously and stably cool the brake, and the cost is high.
[ summary of the invention ]
The invention aims to: in order to overcome the defects of the prior art, the wet brake external circulation cooling system is capable of continuously and stably cooling the brake and is low in cost.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a wet brake extrinsic cycle cooling system for lower the temperature for the stopper, wet brake extrinsic cycle cooling system includes oil tank, oil pump and cooler, the oil pump is installed in engine flywheel's power of getting mouth, utilizes engine flywheel is as the power supply, the cooler is by vehicle mounted power supply power, the oil pump will oil in the oil tank is carried extremely the cooler cooling, reentrant the stopper gives the stopper cooling, the oil reflux in the stopper goes into the oil tank forms circulation circuit.
Further, the cooler is a fan.
Further, the cooler is an electronic fan, the electronic fan comprises a temperature sensor and a fan, the temperature sensor is electrically connected with the fan, the temperature sensor detects the temperature in the brake, and the rotating speed of the fan is controlled according to the temperature in the brake.
Furthermore, the thermal power of the cooler is 10-15KW, namely when the maximum flow does not exceed 200L/min, the temperature of the oil can be reduced by more than 40 ℃.
Further, the piping at the cooler is in the form of a bellows.
Further, the wet brake external circulation cooling system further comprises a first filter, the first filter is located between the oil tank and the oil pump, and the first filter removes impurities of oil in the oil tank to prevent the impurities from entering the cooler.
Further, the wet brake external circulation cooling system further comprises a second filter, the second filter is located between the brake and the oil tank, and the second filter filters oil in the brake to ensure the cleanliness of the oil in the oil tank.
Further, the brake is provided with a cooling cavity and a braking cavity, the braking cavity is not communicated with the cooling cavity, the cooler is communicated with the cooling cavity, and the cooling cavity is communicated with the second filter.
Furthermore, the power take-off port of the engine flywheel is one of a power take-off port shared by an engine inflating pump interface, an engine power steering pump interface, an engine inflating pump and an engine power steering pump.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
firstly, the oil pump takes power from an engine flywheel, works along with the change of the engine speed, the situation of extremely low speed cannot occur because the lowest engine speed is the idle speed, and the oil pump still continues to work under the condition that a vehicle is not shut down and stopped, so that the external circulation system can realize continuous circulation when the engine is started.
And secondly, the cooler fan is powered by a vehicle-mounted power supply, and can work after the vehicle is powered on, and the rotating speed is stable and is not influenced by the running speed of the vehicle.
In addition, if the electronic fan is adopted, the speed of the fan can be adjusted along with the temperature of the brake, and the temperature stability of the brake is ensured.
[ description of the drawings ]
FIG. 1 is a schematic diagram of an external recirculating cooling system for a wet brake according to the present invention;
fig. 2 is a schematic diagram of an internal structure of a brake of the external circulation cooling system of the wet brake of fig. 1.
In the figure: 10. an oil tank; 20. a first filter; 30. an oil pump; 40. a cooler; 50. a brake; 51. a brake chamber; 52. a cooling chamber; 53. a lubrication chamber; 54. a seal member; 60. a second filter.
[ detailed description ] embodiments
The present invention will be further described with reference to the following examples.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, the external circulation cooling system of a wet brake of the present invention includes an oil tank 10, a first filter 20, an oil pump 30, a cooler 40, a brake 50, and a second filter 60.
The brake 50 is provided with a brake chamber 51, a cooling chamber 52, a lubrication chamber 53 and includes a seal 54. The brake chamber 51 is not communicated with the cooling chamber 52. Seal 54 is located between cooling cavity 52 and lubrication cavity 53 and acts as a spacer. The cooling cavity 52 is sealed to realize oil circulation cooling.
The oil tank 10 is communicated with the first filter 20 through a pipeline, the first filter 20 is communicated with the oil pump 30 through a pipeline, the oil pump 30 is communicated with the cooling cavity 52 of the brake 50 through a pipeline, the pipeline between the oil pump 30 and the cooling cavity 52 is in a corrugated pipe shape, and the cooler 40 is located on one side of the corrugated pipe shape and used for cooling oil in the corrugated pipe shape. The cooling chamber 52 communicates with a second filter 60 through a conduit. The second filter 60 communicates with the tank 10 through a pipe, and the tank 10, the first filter 20, the oil pump 30, the brake 50, and the second filter 60 form a circulation circuit.
The oil pump 30 is attached to a power take-off port of an engine flywheel, and uses the engine flywheel as a power source. The power take-off port of the engine flywheel is one of a power take-off port shared by an engine inflating pump interface, an engine power steering pump interface, an engine inflating pump and an engine power steering pump. The oil pump 30 operates with the change of the engine speed, the lowest engine speed is the idling speed, the situation that the speed is extremely low cannot occur, and the oil pump 30 still continues to operate in the state that the vehicle is not shut down and stopped, so that the external circulation system can realize continuous circulation when the engine is started.
The cooler 40 is powered by an onboard power supply. In the present embodiment, the cooler 40 is a fan. The cooler 40 may also be an electronic fan including a temperature sensor electrically connected to the fan and a fan, the temperature sensor detecting the temperature in the brake 50 and controlling the rotation speed of the fan according to the temperature in the brake 50. A branch is connected to the fan from a main line of a vehicle chassis circuit, namely the fan is directly powered by a vehicle-mounted direct current power supply, and when the vehicle power supply is started, the fan starts to work at a certain rotating speed, so that the heat dissipation effect of the cooler 40 is stable. The temperature sensor is used for monitoring the temperature of the brake 50 or the temperature of brake oil liquid, the temperature sensor transmits the real-time temperature of the brake 50 or the brake oil liquid to the controller, the controller identifies that the temperature is higher than the standard allowable temperature of the brake 50, and then the rotation speed signal is transmitted to the electronic fan according to the temperature, so that the rotation speed control of the electronic fan is realized, and the temperature of the brake 50 is not higher than the allowable temperature.
The thermal power of the cooler is 10-15KW, namely when the maximum flow does not exceed 200L/min, the temperature of the oil can be reduced by more than 40 ℃. Preferably, the thermal power of the cooler 40 is 13KW, namely when the maximum flow does not exceed 180L/min, the temperature of the oil can be reduced by more than 40 ℃. The output volume of the gear pump adopted by the external circulation cooling system is 20ml/r, the power source is a flywheel of the power generator, and the rotating speed of the engine does not exceed 4000r/min generally, so the maximum flow of the system does not exceed 80L, and the maximum flow requirement of the cooler is met.
The first filter 20 removes impurities from the oil in the tank 10 to prevent the impurities from entering the cooler 40. Since the axle brake 50 brakes by friction of the brake pads, the oil in the brake 50 is easily contaminated by impurities generated by friction, and the second filter 60 filters the oil in the brake 50 to ensure the cleanliness of the oil in the oil tank 10.
This patent utilizes the engine flywheel as the power supply of outer circulation system oil pump 30, adopts on-vehicle power supply to supply power for cooler 40 fan, compares with the prior art following beneficial effect:
1. the oil pump 30 takes power from an engine flywheel and works along with the change of the engine speed, because the lowest engine speed is the idle speed, the situation that the speed is extremely low cannot occur, and the oil pump still continues to work under the condition that the vehicle is not shut down and stopped, so that the external circulation system can realize continuous circulation when the engine is started.
2. The fan of the cooler 40 is powered by the vehicle power supply, and the fan can work after the vehicle is powered on, and the rotating speed is stable and is not influenced by the running speed of the vehicle.
3. The cooler 40 adopts an electronic fan to adjust the speed of the fan along with the temperature of the brake 50, so as to ensure the temperature stability of the brake 50.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a wet brake extrinsic cycle cooling system for cooling down brake, its characterized in that: the wet brake external circulation cooling system comprises an oil tank, an oil pump and a cooler, wherein the oil pump is installed at a power take-off port of an engine flywheel and utilizes the engine flywheel as a power source, the cooler is powered by an on-board power supply, the oil pump conveys oil in the oil tank to the cooler for cooling, then the oil enters the brake for cooling, and the oil in the brake flows into the oil tank to form a circulation loop; the wet brake external circulation cooling system comprises a brake, a cooler, a second filter and a cooling cavity, wherein the brake is provided with the cooling cavity and the brake cavity, the brake cavity is not communicated with the cooling cavity, the cooler is communicated with the cooling cavity, the second filter is positioned between the brake and an oil tank, the second filter filters oil in the brake to ensure the cleanliness of the oil in the oil tank, and the cooling cavity is communicated with the second filter; the power take-off port of the engine flywheel is one of a power take-off port shared by an engine inflating pump interface, an engine steering power-assisted pump interface, an engine inflating pump and an engine steering power-assisted pump; still include the sealing member, the sealing member is located between cooling chamber and the lubrication chamber and play the interval effect, the cooling chamber is sealed realizes turbulent circulation cooling.
2. The wet brake external circulation cooling system of claim 1, wherein: the cooler is a fan.
3. The wet brake external circulation cooling system of claim 2, wherein: the cooler is an electronic fan, the electronic fan comprises a temperature sensor and a fan, the temperature sensor is electrically connected with the fan, the temperature sensor detects the temperature in the brake, and the rotating speed of the fan is controlled according to the temperature in the brake.
4. The wet brake external circulation cooling system of claim 1, wherein: the thermal power of the cooler is 10-15KW, namely when the maximum flow does not exceed 200L/min, the temperature of the oil can be reduced by more than 40 ℃.
5. The wet brake external circulation cooling system of claim 1, wherein: the piping at the cooler is in the form of a bellows.
6. The wet brake external circulation cooling system of claim 1, wherein: the wet brake external circulation cooling system further comprises a first filter, wherein the first filter is located between the oil tank and the oil pump, and the first filter removes impurities of oil in the oil tank to prevent the impurities from entering the cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073318.5A CN109854649B (en) | 2019-01-25 | 2019-01-25 | External circulation cooling system of wet brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073318.5A CN109854649B (en) | 2019-01-25 | 2019-01-25 | External circulation cooling system of wet brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854649A CN109854649A (en) | 2019-06-07 |
| CN109854649B true CN109854649B (en) | 2021-03-09 |
Family
ID=66896119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910073318.5A Expired - Fee Related CN109854649B (en) | 2019-01-25 | 2019-01-25 | External circulation cooling system of wet brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109854649B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525399A (en) * | 2019-10-11 | 2019-12-03 | 徐州徐工矿业机械有限公司 | A kind of vehicle automatic retarding control system |
| CN111365388A (en) * | 2020-05-28 | 2020-07-03 | 莱州亚通重型装备有限公司 | Cooling system of wet brake |
| CN112009446B (en) * | 2020-09-24 | 2024-01-26 | 吉林大学青岛汽车研究院 | Wet type multi-disc type traveling and parking integrated braking system and application method thereof |
| CN117685315B (en) * | 2024-02-02 | 2024-05-10 | 浙江万里扬股份有限公司杭州分公司 | Power takeoff structure of AMT transmission supporting driving power take-off |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203114404U (en) * | 2013-03-18 | 2013-08-07 | 安徽合力股份有限公司 | Forklift engine cooling system utilizing static hydraulic pressure to drive fan |
| CN203431078U (en) * | 2013-08-20 | 2014-02-12 | 重庆交通大学 | Outer circulating cooling device of motor vehicle wet brake |
| CN105757144A (en) * | 2016-03-24 | 2016-07-13 | 西安科技大学 | Wet multi-disc decompression brake |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4553800B2 (en) * | 2005-06-10 | 2010-09-29 | 株式会社小松製作所 | Cooling fan drive device |
| GB0614939D0 (en) * | 2006-07-27 | 2006-09-06 | Arternis Intelligent Power Ltd | Digital hydraulic system for driving a fan |
| JP2011184911A (en) * | 2010-03-08 | 2011-09-22 | Kcm:Kk | Driving circuit for cooling fan |
| CN102345725A (en) * | 2011-09-29 | 2012-02-08 | 天津山河装备开发有限公司 | Transmission gear cooling system of wheel-mounted crane |
| CN202484159U (en) * | 2012-03-23 | 2012-10-10 | 安徽合力股份有限公司 | Cooling system of driving bridge for container reach stacker |
| JP2014163356A (en) * | 2013-02-27 | 2014-09-08 | Iseki & Co Ltd | Mover part structure of service vehicle |
| CN204716820U (en) * | 2015-05-13 | 2015-10-21 | 山东交通学院 | A kind of hydrodynamic retarder with holding braking function |
| CN204942160U (en) * | 2015-08-04 | 2016-01-06 | 中冶京诚（湘潭）矿山装备有限公司 | A kind of electric power wheel self-discharging vehicle and hydraulic cooling system thereof |
| CN206429463U (en) * | 2017-01-25 | 2017-08-22 | 徐工集团工程机械股份有限公司科技分公司 | Hydraulic fan drive system |
| CN108082151B (en) * | 2017-12-14 | 2021-01-12 | 广西柳工机械股份有限公司 | Wet-type bridge braking and external cooling circulation system |
-
2019
- 2019-01-25 CN CN201910073318.5A patent/CN109854649B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203114404U (en) * | 2013-03-18 | 2013-08-07 | 安徽合力股份有限公司 | Forklift engine cooling system utilizing static hydraulic pressure to drive fan |
| CN203431078U (en) * | 2013-08-20 | 2014-02-12 | 重庆交通大学 | Outer circulating cooling device of motor vehicle wet brake |
| CN105757144A (en) * | 2016-03-24 | 2016-07-13 | 西安科技大学 | Wet multi-disc decompression brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109854649A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109854649B (en) | External circulation cooling system of wet brake | |
| US3934644A (en) | Remote engine water cooler | |
| CN102927167B (en) | Based on independent type hydraulic retarder and the controlling method thereof of magnetic flow liquid | |
| CN104832567A (en) | Hydraulic retarder with holding braking function | |
| CN204279390U (en) | A kind of complemental brake system | |
| CN209410036U (en) | The commercial automobile-used integrated form air braking system of new energy and its vehicle | |
| CN108238044B (en) | Energy-saving electric air compressor and steering oil pump control system | |
| CN104632438A (en) | Integrated type commercial electronic control diesel engine starting, stopping and auxiliary braking system and method | |
| CN113525315A (en) | Hydraulic retarder control system | |
| CN102774272B (en) | A kind of Integral automobile cooling mechanism | |
| GB1459886A (en) | Motor vehicle braking systems | |
| CN204716820U (en) | A kind of hydrodynamic retarder with holding braking function | |
| CN102092377B (en) | Active intrusive retarding system | |
| CN209510976U (en) | A kind of electrodynamic type wet brake external circulation cooling system and vehicle | |
| CN203500340U (en) | Engine oil medium type hydraulic retarder | |
| CN204736838U (en) | In put serial -type hydraulic and delay quick -mounting and put | |
| CN105202170B (en) | A kind of vehicle main retarder heat dissipating method and its device | |
| CN106090075A (en) | A kind of gasoline is depressed merges connection Retarder device | |
| CN209414029U (en) | Used in new energy vehicles self-loopa cools down power generator | |
| CN108973671A (en) | Vehicle and its auxiliary system | |
| CN209818600U (en) | Integrated wet brake external circulation cooling system for vehicle | |
| CN101565038B (en) | Speed retarder of proportional valve control pump type medium and low power vehicle | |
| CN101456409A (en) | Vehicle energy recovery apparatus and method | |
| CN205714394U (en) | novel hybrid power assembly cooling system | |
| CN205890450U (en) | Engineering vehicle with air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210309 Termination date: 20220125 |