CN205780783U - A kind of transmission gear oil air cooling system - Google Patents
A kind of transmission gear oil air cooling system Download PDFInfo
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- CN205780783U CN205780783U CN201620524611.0U CN201620524611U CN205780783U CN 205780783 U CN205780783 U CN 205780783U CN 201620524611 U CN201620524611 U CN 201620524611U CN 205780783 U CN205780783 U CN 205780783U
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- gear oil
- radiator
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Abstract
This utility model provides a kind of transmission gear oil air cooling system, and system includes cooling system and regulation bypass；Described cooling system includes that oil pump and radiator, oil pump, radiator and case of transmission are in turn connected to form cooling circuit；Cooling circuit arranges the protection branch road connected with case of transmission, and protection branch road is provided with relief valve；Described regulation bypass is arranged in parallel with described radiator, and hydraulic valve is installed in regulation bypass；Hydraulic valve is electric-controlled type or hand-adjusting type.By such mode can effectively by transmission oil temperature control within zone of reasonableness, it is ensured that lubrication that variator is good and higher transmission efficiency.The service life of variator can be extended, especially pronounced under the great Ferry Status of difference variation.
Description
[technical field]
This utility model belongs to change speed gear box technical field, especially a kind of transmission gear oil air cooling system.
[background technology]
Transmission gear oil air cooling system, the accreditation and the parent that increasingly receive users look at.But air cooling system can be deposited
In such a problem: under cold and light duty, this highest gearbox oil temperature is cooled the lower of system fall, thus leads
Cause variator is inefficient.In order to solve this problem, the mode of general employing is: when ambient temperature is more cold, pull down cooling
System；When ambient temperature is higher, install cooling system.But this mode is unfavorable for that user uses, especially through region temperature
The long-distance vehicle that differs greatly of degree, and the vehicle of the big transport of height above sea level difference.
[utility model content]
In order to solve the problems referred to above, this utility model one transmission gear oil air cooling system, can be had by such mode
Effect by transmission oil temperature control within zone of reasonableness, it is ensured that lubrication that variator is good and higher transmission efficiency.Change can be extended
The service life of speed device, especially pronounced under the great Ferry Status of difference variation.
The purpose of this utility model is achieved through the following technical solutions:
A kind of transmission gear oil air cooling system, including cooling system and regulation bypass；
Described cooling system includes that oil pump and radiator, oil pump, radiator and case of transmission are in turn connected to form cooling circuit；
Cooling circuit arranges the protection branch road connected with case of transmission, and protection branch road is provided with relief valve；
Described regulation bypass is arranged in parallel with described radiator, and hydraulic valve is installed in regulation bypass；Hydraulic valve is electric-controlled type or hands
Mode.
Described hydraulic valve is ratio solenoid directional control valve, and described ratio solenoid directional control valve connects vehicle control device, vehicle control device with
Connect for measuring the oil temperature sensor of case of transmission internal gear oil temperature；Controlled by the aperture of regulation ratio solenoid directional control valve
The flow of regulation bypass.
Described hydraulic valve is adjustable throttle valve；Flow by the aperture control and regulation bypass of regulation adjustable throttle valve.
Described hydraulic valve is hand-operated direction valve；By controlling the flow of the on or off control and regulation bypass of hand-operated direction valve.
Described hydraulic valve is stop valve；By controlling the flow of the on or off control and regulation bypass of stop valve.
The control method of a kind of transmission gear oil air cooling system, comprises the following steps:
Oil pump is oil suction from case of transmission, is sent into by pressure oil in radiator, and the gear oil through radiator cooling returns to variator
Housing realizes the cooling to gear oil；Radiator is arranged in parallel hydraulic valve, by the flow of regulation hydraulic valve control and regulation bypass,
Realize the Flow-rate adjustment to the gear oil flowing through radiator, and then realize the regulation to case of transmission middle gear oil temperature.
As further improvement of the utility model, specifically include following steps:
When gear oil oil temperature is low, hydraulic valve aperture tunes up or turns on, and makes fluid major part through hydraulic valve, radiator cooling effect
Weakening, oil temperature is gone up；During oil temperature height, hydraulic valve aperture is turned down or ends, and makes fluid major part cool down through radiator, radiator
Effect strengthens, and oil temperature reduces.
As further improvement of the utility model, hydraulic valve adoption rate solenoid directional control valve, regulating step particularly as follows:
Oil temperature sensor gathers case of transmission internal gear oil temperature signal, when gearbox oil temperature is less than T1Time, oil temperature sensor
It is transferred to the current signal i of vehicle control device1Less than preset value i1min, vehicle control device increases output to the electricity of ratio solenoid directional control valve
Stream i2So that it is aperture tunes up；Operative gear oil flows through ratio solenoid directional control valve, and the gear oil flow flowing through radiator reduces, cold
But declines；
When gearbox oil temperature is higher than T2Time, oil temperature sensor is transferred to the current signal i of vehicle control device1More than preset value i1max,
Vehicle control device reduces output to the electric current i of ratio solenoid directional control valve2So that it is its aperture is turned down；Flow through the stream of ratio solenoid directional control valve
Amount reduces, and the gear oil flow flowing through radiator increases, and cooling effect strengthens；T2More than T1。
Relative to prior art, this utility model has the following technical effect that
This utility model uses hydraulic valve to improve transmission gear oil air cooling system.Hydraulic valve is in parallel closing with radiator
System, it is only necessary to being configured regulation bypass in parallel, simple in construction, when oil temperature is low, hydraulic valve aperture tunes up, and makes more fluid pass through
Hydraulic valve, radiator cooling effect weakens, and oil temperature is gone up；During oil temperature height, hydraulic valve aperture is turned down, makes more fluid through heat radiation
Device, radiator cooling effect strengthens, and oil temperature reduces.By such mode can effectively by transmission oil temperature control at zone of reasonableness
Within, it is ensured that lubrication that variator is good and higher transmission efficiency.The service life of variator can be extended, in difference variation pole
Under big Ferry Status especially pronounced.
Further, adoption rate solenoid directional control valve can be accurately controlled the temperature of gear oil, real-time monitored and judgement, controls ratio
The aperture of solenoid directional control valve realizes controlling the flow restriction control of bypass.
Control method of the present utility model is adjusted by hydraulic valve, simple to operate, and control mode can be in conjunction with the feelings of reality car
Condition selects, and adaptability is good.
[accompanying drawing explanation]
Fig. 1 former cooling system schematic diagram；
Fig. 2 a uses the cooling system schematic diagram of ratio solenoid directional control valve；
Fig. 2 b uses the cooling system schematic diagram of adjustable throttle valve；
Fig. 2 c uses the cooling system schematic diagram of hand-operated direction valve；
Fig. 2 d uses the cooling system schematic diagram of stop valve；
Fig. 3 cooling system regulates visual dish；
Wherein, 1. oil pump；2 relief valve；3. radiator；4. case of transmission；5-1. ratio solenoid directional control valve；5-2. it is adjustable
Choke valve；5-3. hand-operated direction valve；5-4. stop valve；6. vehicle control device；7. oil temperature sensor；5-2-1. throttle valve adjustment handle；
5-2-2. ambient temperature indicates；5-2-3. load-carrying percentage ratio.
[detailed description of the invention]
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings, but protection domain of the present utility model is not limited to
The following stated.
This utility model one transmission gear oil air cooling system, including cooling system and regulation bypass；
Described cooling system includes that oil pump 1 and radiator 3, oil pump 1, radiator 3 are in turn connected to form with case of transmission 4
Cooling circuit；Cooling circuit arranges the protection branch road connected with case of transmission 4, and protection branch road is provided with relief valve 2；
Described regulation bypass is arranged in parallel with described radiator 3, and hydraulic valve is installed in regulation bypass.
Hydraulic valve is selected from ratio solenoid directional control valve 5-1, adjustable throttle valve 5-2, hand-operated direction valve 5-3 or stop valve 5-4, institute
The ratio solenoid directional control valve 5-1 that states connects vehicle control device 6, vehicle control device 6 be used for measuring case of transmission 4 internal gear
The oil temperature sensor 7 of oil temperature connects.
It is illustrated in figure 1 cooling system schematic diagram.Work process is as follows: oil pump 1 continues oil suction from case of transmission 4, will pressure
Power oil is sent in radiator 3, in overcooled gear oil returns to case of transmission 4.Thus realize the refrigerating function to gear oil.
Cooling system principle after this utility model improves is:
As a example by Fig. 2 a, ratio solenoid directional control valve 5-1 is normal off electromagnetic valve.When ratio solenoid directional control valve 5-1 is in left position, its
The same Fig. 1 of work process；When because being affected by operating mode, when gearbox oil temperature is less than 70 DEG C, oil temperature sensor 7 is transferred to vehicle control device
The current signal i of 61Less than preset value i1min, vehicle control device 6 increases output to the electric current i of ratio solenoid directional control valve 5-12, make
Its displacement to the right is moved.Operative gear oil flows through ratio solenoid directional control valve 5-1, and the gear oil flow flowing through radiator 3 reduces, cold
But declines, variator cooling is slowed down until oil temperature is gone up.When being affected by operating mode, when gearbox oil temperature is higher than 90 DEG C, oil temperature
Sensor 7 is transferred to the current signal i of vehicle control device 61More than preset value i1max, vehicle control device 6 reduces output to ratio electricity
The electric current i of magnetic reversal valve 5-12So that it is move to left dislocation.The flow flowing through ratio solenoid directional control valve 5-1 reduces, and flows through heat radiation
The gear oil flow of device 3 increases, and cooling effect strengthens, and variator heats up and slows down until oil temperature reduces.(the transmission in view of oil temperature
Needing the regular hour, vehicle control device 6 compares the output current value i of oil temperature oil temperature sensor 71With preset value i1minOr i1max
Interval time and electric current i2Increase and decrease amount resets after being required for carrying out verification experimental verification.)
As shown in Figure 2 b, it is possible to use cooling system is improved by adjustable throttle valve 5-2.If using automatically controlled mode,
Its principle is similar with Fig. 2 a；But in present most vehicle, gearbox oil temperature is not monitored, it is considered to cost and can
By property, it is possible to use the mode of hand adjustment, but if needing to be limited to oil temperature a certain temperature range, relatively difficult.Because this needs
The parking wanting driver's variable interval adjusts throttle valve opening, and it is to be appreciated that the concrete numerical value of current oil temperature.Use to improve user
Convenience, make a mark outside choke valve, from ambient temperature, two factor regulation for reference choke valves of load-carrying, such as Fig. 3
Shown in.Such as Fig. 3, ambient temperature is the highest, and load-carrying is the heaviest, and handle rotates to the right, and throttle valve opening is the least, cooling system effect
The strongest；Ambient temperature is the lowest, and load-carrying is the lightest, and handle rotates to the left, and throttle valve opening is the biggest, and cooling system effect is the most weak.Aobvious
So, if needing to control well oil temperature, the number of times needing parking to adjust can compare frequently.
In order to reduce this operation frequently, as long as oil temperature can be in more rational operating temperature range, such as 60 DEG C～120 DEG C.
Hand-operated direction valve 5-3 or stop valve 5-4 can also be used cooling system to be improved, as shown in Fig. 2 c, Fig. 2 d.Due to valve
Caused by performance own, the only effect of on or off oil circuit, and do not regulate the ability of aperture size.Therefore oil temperature is wayward
In a narrower scope.This scheme advantage is that cost is relatively low, easy to operate.As Fig. 2 c has only to regulation ambient temperature
During less than a certain temperature (such as 0 DEG C), manual operation conducting oil circuit, fluid all flows through hand-operated direction valve 5-3, cooling system
Effect is reduced to the most weak, and oil temperature rises；When ambient temperature is higher than this temperature, manual operation stop valve 5-4 blocks oil circuit, and fluid is complete
Portion flows through radiator 3, and cooling system effect increases to the strongest, and oil temperature reduces.Fig. 2 d principle is with Fig. 2 c.
Although being described embodiment of the present utility model above in association with accompanying drawing, but this utility model is not limited to above-mentioned
Specific embodiments, above-mentioned specific embodiments the most schematic, guiding rather than restrictive.This area
Those of ordinary skill is under the enlightenment of this specification, in the case of without departing from this utility model scope of the claimed protection, also
Can be to make a variety of forms, these belong to the row of this utility model protection.
Claims (6)
1. a transmission gear oil air cooling system, it is characterised in that include cooling system and regulation bypass；
Described cooling system includes oil pump (1) and radiator (3), oil pump (1), radiator (3) and case of transmission (4)
It is in turn connected to form cooling circuit；Cooling circuit is provided with the protection branch road connected with case of transmission (4), and protection branch road sets
It is equipped with relief valve (2)；
Described regulation bypass is arranged in parallel with described radiator (3), and hydraulic valve is installed in regulation bypass.
A kind of transmission gear oil air cooling system the most according to claim 1, it is characterised in that hydraulic valve is electric-controlled type
Or hand-adjusting type.
A kind of transmission gear oil air cooling system the most according to claim 1, it is characterised in that described hydraulic valve is
Ratio solenoid directional control valve (5-1), described ratio solenoid directional control valve (5-1) connects vehicle control device (6), vehicle control device (6)
It is connected with the oil temperature sensor (7) being used for measuring case of transmission (4) internal gear oil temperature；By regulation ratio electromagnetic switch
The flow of the aperture control and regulation bypass of valve (5-1).
A kind of transmission gear oil air cooling system the most according to claim 1, it is characterised in that described hydraulic valve is
Adjustable throttle valve (5-2)；Flow by the aperture control and regulation bypass of regulation adjustable throttle valve (5-2).
A kind of transmission gear oil air cooling system the most according to claim 1, it is characterised in that described hydraulic valve is
Hand-operated direction valve (5-3)；By controlling the flow of the on or off control and regulation bypass of hand-operated direction valve (5-3).
A kind of transmission gear oil air cooling system the most according to claim 1, it is characterised in that described hydraulic valve is
Stop valve (5-4)；By controlling the flow of the on or off control and regulation bypass of stop valve (5-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620524611.0U CN205780783U (en) | 2016-06-01 | 2016-06-01 | A kind of transmission gear oil air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620524611.0U CN205780783U (en) | 2016-06-01 | 2016-06-01 | A kind of transmission gear oil air cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780783U true CN205780783U (en) | 2016-12-07 |
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ID=58136361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620524611.0U Active CN205780783U (en) | 2016-06-01 | 2016-06-01 | A kind of transmission gear oil air cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840800A (en) * | 2016-06-01 | 2016-08-10 | 陕西法士特齿轮有限责任公司 | Transmission gear oil air-cooled cooling system and adjusting method |
| CN106969137A (en) * | 2017-05-22 | 2017-07-21 | 徐工集团工程机械股份有限公司 | A kind of gearbox lubrication circuit system |
-
2016
- 2016-06-01 CN CN201620524611.0U patent/CN205780783U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840800A (en) * | 2016-06-01 | 2016-08-10 | 陕西法士特齿轮有限责任公司 | Transmission gear oil air-cooled cooling system and adjusting method |
| CN106969137A (en) * | 2017-05-22 | 2017-07-21 | 徐工集团工程机械股份有限公司 | A kind of gearbox lubrication circuit system |
| CN106969137B (en) * | 2017-05-22 | 2023-10-20 | 徐工集团工程机械股份有限公司 | Gearbox lubrication circuit system |
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