CN108253120A - A kind of heavy truck temperature of transmission self-regulation cooling system - Google Patents
A kind of heavy truck temperature of transmission self-regulation cooling system Download PDFInfo
- Publication number
- CN108253120A CN108253120A CN201711229574.6A CN201711229574A CN108253120A CN 108253120 A CN108253120 A CN 108253120A CN 201711229574 A CN201711229574 A CN 201711229574A CN 108253120 A CN108253120 A CN 108253120A
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- China
- Prior art keywords
- temperature
- hydraulic fluid
- fluid port
- speed changer
- cooling system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of heavy truck temperature of transmission self-regulation cooling systems, including temperature-sensing valve, speed changer and cooler, there are four hydraulic fluid ports for the temperature-sensing valve setting, two hydraulic fluid ports of side distinguish pipeline and are connected with transmission oil pump assembly oil outlet and low pressure oil return opening, and pipeline is connected the both sides hydraulic fluid port of opposite side with cooler oil inlet and outlet respectively.The present invention system can when speed changer operating temperature as possible close to optimum working temperature.This temperature of transmission self-regulation cooling system, makes speed changer adapt to different operating modes, improves transmission duty efficiency.
Description
Technical field
The present invention relates to field of automobile, specifically a kind of heavy truck temperature of transmission self-regulation cooling system
System.
Background technology
With the continuous improvement of highway transportation condition, the proportion that Automobile Transportation accounts for entire communications and transportation increasingly improves, big ton
Transport vehicle, container tractor, the crane of position require bigger for the driving torque of speed changer, and range of speeds requirement is wider,
Performance is more reliable, and cost requirement is lower.In order to realize the purpose, for current double countershaft mechanical speed changes
Input torque is required for device if it exceeds 2200Nm, then the length of axis will increase, and cost increases, and reliability also reduces.
So, the requirement to heavy truck speed changer air cooling system is higher and higher.
Heavy truck speed changer air cooling system greatly improves speed changer the bad working environments high temperature the phenomenon that.But when change
When fast device operating mode improves, air cooling system is lower when causing gearbox oil temperature ratio withouyt cooling system, leads to speed changer not
Its optimum temperature operating point can be operated in.The air cooling system used at present, cooling system work help speed changer cooling.But
When ambient temperature is low, such cooling makes that speed changer internal temperature is relatively low, and oil viscosity is higher, speed changer it is relatively low in
Optimum temperature working range is too big.
Invention content
Of the existing technology to solve the problems, such as, the present invention provides a kind of heavy truck temperature of transmission self-regulation cooling systems
System, matches temperature-sensing valve with heavy truck speed changer air cooling system for the program when this patent is main.It obtains a kind of heavy
Card temperature of transmission self-regulation cooling system.
To achieve the above object, the present invention uses following technical scheme：
A kind of heavy truck temperature of transmission self-regulation cooling system, including temperature-sensing valve, speed changer and cooler, the temperature control
There are four hydraulic fluid port, the two hydraulic fluid ports difference pipelines and transmission oil pump assembly oil outlet and low pressure oil return opening phase of side for valve setting
Even, pipeline is connected the both sides hydraulic fluid port of opposite side with cooler oil inlet and outlet respectively.
The temperature sensing material for spool to be driven to move is provided in temperature-sensing valve.
Four hydraulic fluid ports are respectively hydraulic fluid port O, hydraulic fluid port P, hydraulic fluid port B and hydraulic fluid port A；Hydraulic fluid port P and hydraulic fluid port O are total with transmission oil pump respectively
It is connected into oil outlet with low pressure oil return opening, hydraulic fluid port A and hydraulic fluid port B are connected respectively with cooler oil inlet and outlet；Hydraulic fluid port O and hydraulic fluid port B phases
To setting, hydraulic fluid port P is oppositely arranged with hydraulic fluid port A, and four hydraulic fluid ports are connected with valve chamber.
When gearbox oil temperature is less than set temperature, temperature-sensing valve is closed, and Spool assembly blocks B or A mouthfuls of hydraulic fluid port,
Hydraulic fluid port P is connected with hydraulic fluid port O；When gearbox oil temperature be higher than set temperature when, temperature-sensing valve in the open state, hydraulic fluid port O with oil
Mouth B is connected, and hydraulic fluid port P is connected with hydraulic fluid port A, and hydraulic fluid port P is not connected with hydraulic fluid port O in valve.
When gearbox oil temperature is between the maximum temperature and minimum temperature of setting, temperature-sensing valve is in semi-open state, oil
Mouthful P, hydraulic fluid port A, hydraulic fluid port B, hydraulic fluid port O, be interconnected, and pass through Spool assembly can adjust between discharge relation.
The hydraulic fluid port of temperature-sensing valve is threadedly coupled with pipeline.
Temperature-sensing valve is mounted on case of transmission.
Compared with prior art, the present invention it has the following advantages：
The present invention automatically controls cooling system oil circuit break-make by increasing temperature-sensing valve, according to oil liquid temperature：Less than best work
When making temperature t (t can be a regional value), cooling system is disconnected, fluid is made to be returned directly to speed changer without cooling system；
During higher than operating temperature t, fluid is made to return to speed changer after cooling system.Speed changer operating temperature is as possible when so, it is possible
Close to optimum working temperature.This temperature of transmission self-regulation cooling system, makes speed changer adapt to different operating modes, improves speed changer
Working efficiency.
Further, its inner spool of the temperature-sensing valve of use is equipped with temperature sensing material, and spool moving displacement is directly related with temperature,
It controls it, can be very easily reequiped on existing vehicle without electric signal.
Description of the drawings
Fig. 1 speed changer cooling system schematic diagrams；
Fig. 2 installs the speed changer cooling system schematic diagram of temperature-sensing valve additional；
Fig. 3 installs the speed changer cooling system installation diagram of temperature-sensing valve additional；
Wherein, 1- speed changers 2- oil pump assys 3- cooler 4- temperature-sensing valves.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
If Fig. 1 is speed changer cooling system schematic diagram.Under low temperature environment, vehicle underloading, the operating mode of flat pavement running, speed change
The heat that the work of device 1 generates largely is taken away by fluid to dissipate through subcooler 3, and speed changer after-heat is insufficient to allow speed changer
Temperature is increased to expectation operating temperature.
If Fig. 2 is the systematic schematic diagram after increasing cooling system temperature-sensing valve 4, when oil temperature is less than working oil temperature it is expected,
Transmission fluid effectively makes the heat generated during work be close to even reach for heating transmission fluid without cooling
It is expected working oil temperature to speed changer.If generated, heat is more, and thermostatic valve core is influenced to open corresponding oil circuit by oil temperature so that cold
But device 3 works normally, and radiates, and constantly looks for oil temperature equalization point.
Such as the cooling system installation diagram that Fig. 3 is installation temperature-sensing valve.Pipeline arrangement is adjusted with specific reference to different automobile types.This
A kind of heavy truck temperature of transmission self-regulation cooling system of invention, including temperature-sensing valve 4, speed changer 1 and cooler 3, the temperature
Controlling the setting of valve 4, there are four hydraulic fluid port, two hydraulic fluid ports difference pipeline and 1 oil pump assy of speed changer, 2 oil outlet and the low pressure oil returns of side
Mouth is connected, and pipeline is connected the both sides hydraulic fluid port of opposite side with 3 oil inlet and outlet of cooler respectively.It is provided with to drive in temperature-sensing valve 4
The temperature sensing material of movable valve plug movement.
Four hydraulic fluid ports are respectively hydraulic fluid port O, hydraulic fluid port P, hydraulic fluid port B and hydraulic fluid port A；Hydraulic fluid port P and hydraulic fluid port O respectively with 1 oil pump of speed changer
2 oil outlet of assembly is connected with low pressure oil return opening, and hydraulic fluid port A and hydraulic fluid port B are connected respectively with 3 oil inlet and outlet of cooler；Hydraulic fluid port O and hydraulic fluid port
B is oppositely arranged, and hydraulic fluid port P is oppositely arranged with hydraulic fluid port A, and four hydraulic fluid ports are connected with valve chamber.When temperature-sensing valve 4 is closed,
Spool assembly blocks hydraulic fluid port B, and hydraulic fluid port P is connected with hydraulic fluid port O, and transmission gear oil is without the direct oil return of cooler；At temperature-sensing valve 4
When opening state, hydraulic fluid port O is connected with hydraulic fluid port B, and hydraulic fluid port P and hydraulic fluid port O are not attached to lead to, and transmission gear oil is returned through subcooler
Oil, the hydraulic fluid port of temperature-sensing valve 4 are threadedly coupled with pipeline.
The present invention operation principle be：
Actual working oil temperature t0 constantly changes with operating mode, it is expected working oil temperature in a temperature range [t1, t2],
1) temperature-sensing valve is operated in right position in .t0≤t1, Fig. 2.The fluid that oil pump assy 2 pumps out all flows through temperature-sensing valve 4
Hydraulic fluid port P, hydraulic fluid port O, then flow back to speed changer 1.
2) temperature-sensing valve is operated in middle position in .t1 ＜ t0≤t2, Fig. 2, which varies with temperature and change.Oil temperature
During raising, the flow of hydraulic fluid port P to hydraulic fluid port O reduces, and the flow increase of hydraulic fluid port P to hydraulic fluid port A flows through the increase of 3 flow of cooler, heat dissipation
Ability enhances, and oil temperature has reduction trend, until reaching a certain equilibrium temperature；When oil temperature reduces similarly.
3) temperature-sensing valve is operated in left position (shown position) in .t0 ＞ t2, Fig. 2, spool be moved to thoroughly close from hydraulic fluid port P to
The channel of hydraulic fluid port O, thoroughly opens the channel of hydraulic fluid port P to hydraulic fluid port A, and all fluid are flowed through from temperature-sensing valve hydraulic fluid port P, hydraulic fluid port A, cooler
3rd, hydraulic fluid port B, hydraulic fluid port O, are eventually returned to speed changer.
More than, only presently preferred embodiments of the present invention is not limited only to the practical range of the present invention, all according to the scope of the invention
The equivalence changes done of content and modification, all should be the technology scope of the present invention.
Claims (5)
- The cooling system 1. a kind of heavy truck temperature of transmission is self-regulated, which is characterized in that including temperature-sensing valve (4), speed changer (1) and cold But device (3), there are four hydraulic fluid port, two of which hydraulic fluid port passes through pipeline and speed changer (1) oil pump respectively for the temperature-sensing valve (4) setting Assembly (2) oil outlet is connected with low pressure oil return opening, and another two hydraulic fluid port is connected respectively by pipeline with cooler (3) oil inlet and outlet It connects.
- 2. the heavy truck temperature of transmission self-regulation cooling system according to claims 1, which is characterized in that temperature-sensing valve (4) Inside it is provided with the temperature sensing material for spool to be driven to move.
- 3. the heavy truck temperature of transmission self-regulation cooling system according to claims 1, which is characterized in that four hydraulic fluid ports point It Wei not hydraulic fluid port O, hydraulic fluid port P, hydraulic fluid port B and hydraulic fluid port A；Hydraulic fluid port P and hydraulic fluid port O respectively with speed changer (1) oil pump assy (2) oil outlet and low It pushes back hydraulic fluid port to be connected, hydraulic fluid port A and hydraulic fluid port B are connected respectively with cooler (3) oil inlet and outlet.
- 4. the heavy truck temperature of transmission self-regulation cooling system according to claims 1, which is characterized in that temperature-sensing valve (4) Hydraulic fluid port be threadedly coupled with pipeline.
- 5. the heavy truck temperature of transmission self-regulation cooling system according to claims 1, which is characterized in that temperature-sensing valve (4) On speed changer (1) housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229574.6A CN108253120A (en) | 2017-11-29 | 2017-11-29 | A kind of heavy truck temperature of transmission self-regulation cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711229574.6A CN108253120A (en) | 2017-11-29 | 2017-11-29 | A kind of heavy truck temperature of transmission self-regulation cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108253120A true CN108253120A (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711229574.6A Pending CN108253120A (en) | 2017-11-29 | 2017-11-29 | A kind of heavy truck temperature of transmission self-regulation cooling system |
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| CN (1) | CN108253120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916163A (en) * | 2018-09-26 | 2018-11-30 | 浙江杭钻能源装备有限公司 | Oil tank cooling system and its cooling control method |
| CN113464586A (en) * | 2021-07-28 | 2021-10-01 | 潍柴动力股份有限公司 | Wet clutch protection system and method based on hydraulic mechanical continuously variable transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312997A (en) * | 2011-09-08 | 2012-01-11 | 浙江三花汽车零部件股份有限公司 | Vehicle gear box temperature regulator |
| CN103574265A (en) * | 2012-08-07 | 2014-02-12 | 浙江三花汽车零部件有限公司 | Temperature regulator for heat exchange loop |
| CN103573958A (en) * | 2012-08-07 | 2014-02-12 | 浙江三花汽车零部件有限公司 | Thermostat component for heat exchange loop |
| CN104279306A (en) * | 2014-10-11 | 2015-01-14 | 奇瑞汽车股份有限公司 | Hybrid power automobile gearbox unit cooling system and cooling method |
| CN106704686A (en) * | 2015-11-12 | 2017-05-24 | 浙江三花汽车零部件有限公司 | Temperature control valve and gearbox temperature control system |
| CN207935408U (en) * | 2017-11-29 | 2018-10-02 | 西安法士特汽车传动有限公司 | A kind of heavy truck temperature of transmission self-regulation cooling system |
-
2017
- 2017-11-29 CN CN201711229574.6A patent/CN108253120A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312997A (en) * | 2011-09-08 | 2012-01-11 | 浙江三花汽车零部件股份有限公司 | Vehicle gear box temperature regulator |
| CN103574265A (en) * | 2012-08-07 | 2014-02-12 | 浙江三花汽车零部件有限公司 | Temperature regulator for heat exchange loop |
| CN103573958A (en) * | 2012-08-07 | 2014-02-12 | 浙江三花汽车零部件有限公司 | Thermostat component for heat exchange loop |
| CN104279306A (en) * | 2014-10-11 | 2015-01-14 | 奇瑞汽车股份有限公司 | Hybrid power automobile gearbox unit cooling system and cooling method |
| CN106704686A (en) * | 2015-11-12 | 2017-05-24 | 浙江三花汽车零部件有限公司 | Temperature control valve and gearbox temperature control system |
| CN207935408U (en) * | 2017-11-29 | 2018-10-02 | 西安法士特汽车传动有限公司 | A kind of heavy truck temperature of transmission self-regulation cooling system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916163A (en) * | 2018-09-26 | 2018-11-30 | 浙江杭钻能源装备有限公司 | Oil tank cooling system and its cooling control method |
| CN108916163B (en) * | 2018-09-26 | 2023-08-22 | 浙江杭钻能源装备有限公司 | Oil tank cooling system and cooling control method thereof |
| CN113464586A (en) * | 2021-07-28 | 2021-10-01 | 潍柴动力股份有限公司 | Wet clutch protection system and method based on hydraulic mechanical continuously variable transmission |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180706 |
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| RJ01 | Rejection of invention patent application after publication |