CN106969137B - Gearbox lubrication circuit system - Google Patents
Gearbox lubrication circuit system Download PDFInfo
- Publication number
- CN106969137B CN106969137B CN201710364018.3A CN201710364018A CN106969137B CN 106969137 B CN106969137 B CN 106969137B CN 201710364018 A CN201710364018 A CN 201710364018A CN 106969137 B CN106969137 B CN 106969137B
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- Prior art keywords
- oil
- gearbox
- temperature
- control valve
- valve
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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
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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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
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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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
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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
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a gearbox lubrication loop system, which comprises a gearbox oil pan, a filter, a hydraulic pump, a gearbox control valve, a clutch and a radiator, wherein the hydraulic pump absorbs oil from the gearbox oil pan through the filter, an oil port P of the gearbox control valve is connected with the hydraulic pump, the gearbox control valve divides an oil path into two paths, one path supplies oil to the gearbox clutch through the valve, the other path flows to the radiator, the gearbox lubrication loop system further comprises a temperature control valve, the temperature control valve is arranged between the gearbox control valve and the radiator, the other path of the temperature control valve is directly communicated with a gearbox pipeline and is used for detecting the temperature of lubricating oil of a power shift gearbox, and when the temperature of the oil is lower than the set temperature, the temperature control valve enables the oil in the power shift gearbox not to circulate through the radiator but to flow back into the gearbox. In a low-temperature environment, the gear shifting quality of the power shift gearbox when the power shift gearbox is started is improved through the lubricating oil heat dissipation control system of the power shift gearbox.
Description
Technical Field
The invention relates to a gearbox lubrication circuit system, and belongs to the technical field of gearbox lubrication circuit systems.
Background
In the existing power shift gearbox lubricating oil heat dissipation system, a hydraulic pump sucks oil from a gearbox oil pan and supplies the oil to a gearbox control valve group through an oil filter, after the oil is distributed through the gearbox control valve group, the lubricating oil returns to the gearbox through a radiator, and a fan is directly connected with an engine and is arranged at the radiator. When the ambient temperature is low, the gearbox lubricating oil also needs to return to the gearbox through the radiator when the road roller starts, and the fan rotates all the time, so that the temperature of the gearbox lubricating oil rises slowly, and the starting and gear shifting quality of the gearbox is affected.
When the temperature changes, the viscosity of oil liquid in an actuating mechanism of the clutch of the power shift gearbox changes, so that the pressure loss in an oil return pipeline of the clutch changes; the temperature is reduced, the oil return amount is reduced, the combination speed of the clutch is reduced, and the gear shifting quality is poor when the power gear shifting gearbox is just started.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides a gearbox lubrication loop system, which can improve the gear shifting quality of a power shift gearbox when the power shift gearbox is started in a low-temperature environment through a power shift gearbox lubricating oil heat dissipation control system.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a gearbox lubrication circuit system, includes gearbox oil pan, filter, hydraulic pump, gearbox control valve, clutch, radiator, and the hydraulic pump is followed gearbox oil pan oil absorption through the filter, and gearbox control valve hydraulic fluid port P is connected with the hydraulic pump, and gearbox control valve divide into two way with the oil circuit, and the oil supply of way through the valve to gearbox clutch, the flow direction radiator of way, its characterized in that: the temperature control valve is arranged between the gearbox control valve and the radiator, and the other path of the temperature control valve is directly communicated with a gearbox pipeline and used for detecting the temperature of lubricating oil of the power shift gearbox, and when the temperature of the oil is lower than a set temperature, the temperature control valve enables the oil in the power shift gearbox not to circulate through the radiator any more, but directly flows back into the gearbox.
As a specific preferred scheme, the transmission lubrication circuit system is characterized in that: the temperature control valve is a temperature-saving valve; the hydraulic pump absorbs oil from the oil pan of the gearbox through the filter, the oil port P of the control valve of the gearbox is connected with the hydraulic pump, the control valve of the gearbox divides an oil way into two paths, one path supplies oil to the clutch of the gearbox through the valve, the other path flows to the oil port a of the temperature-saving valve, when the temperature of the oil is higher than the set temperature, the oil port a of the temperature-saving valve is communicated with the oil port b, the oil lubricates the gearbox through the oil port b of the temperature-saving valve and the radiator, when the temperature of the oil is lower than the set temperature, the oil is communicated with the oil port c of the temperature-saving valve, and the oil directly lubricates the gearbox.
Further, the transmission lubrication circuit system is characterized in that: the temperature range of the temperature control valve is-10 ℃ to 40 ℃.
More preferably, the lubrication circuit system for a gearbox is characterized in that: the temperature range of the temperature control valve is 20 ℃.
As another specific preferable scheme, the transmission lubrication circuit system is characterized in that: the temperature control valve is an electromagnetic valve and a controller, and a temperature sensor is arranged in the oil pan of the gearbox; the temperature sensor is connected with the controller; the hydraulic pump is connected with the hydraulic pump from the gearbox oil pan oil absorption through the filter, gearbox control valve hydraulic fluid port P is connected with the hydraulic pump, the gearbox control valve divide into two way with the oil circuit, the oil feeding is carried out to gearbox clutch through the valve all the way, the oil temperature in the gearbox oil pan is detected to the temperature sensor through the valve all the way, and the controller is given in the transmission, when oil temperature is greater than the settlement temperature, the controller control solenoid valve can not get the electricity, oil passes the solenoid valve left bit, the radiator is passed through and is lubricated for the gearbox, when oil temperature is less than the settlement temperature, the controller control solenoid valve gets the electricity, oil passes the solenoid valve right bit, directly lubricate for the gearbox.
Further, the transmission lubrication circuit system is characterized in that: the temperature range of the controller is-10-40 ℃.
More preferably, the lubrication circuit system for a gearbox is characterized in that: the controller sets the temperature range to 20 ℃.
The beneficial effects are that: according to the gearbox lubrication loop system provided by the invention, in a low-temperature environment, the gear shifting quality of the power shift gearbox when the power shift gearbox is started is improved through the power shift gearbox lubrication oil heat dissipation control system. And detecting the temperature of the lubricating oil in the power shift gearbox, and when the temperature of the lubricating oil is lower than the set temperature, directly flowing back into the gearbox instead of circulating the lubricating oil in the power shift gearbox through the radiator. Therefore, the temperature of oil in the gearbox can be quickly increased, and the starting and gear shifting quality is improved.
Drawings
Fig. 1 is a schematic structural view of embodiment 1;
fig. 2 is a schematic structural diagram of embodiment 2.
Detailed Description
The invention will be further described with reference to specific examples.
Example 1
As shown in fig. 1, a transmission lubrication circuit system includes a transmission oil pan 1, a filter 2, a hydraulic pump 3, a transmission control valve 4, a clutch 5, a radiator 6, and a throttle valve 71;
the hydraulic pump 3 absorbs oil from the oil pan 1 of the gearbox through the filter 2, the oil port P of the control valve 4 of the gearbox is connected with the hydraulic pump, the control valve 4 of the gearbox divides an oil path into two paths, one path supplies oil to the clutch 5 of the gearbox through the valve 42, the other path flows to the oil port a of the temperature-saving valve 71, when the temperature of the oil is higher than 20 ℃, the oil port a of the temperature-saving valve is communicated with the oil port b, the oil lubricates the gearbox through the oil port b of the temperature-saving valve and the radiator 6, and when the temperature of the oil is lower than 20 ℃, the oil is communicated through the oil port a of the temperature-saving valve and the oil port c, and the oil directly lubricates the gearbox.
The specific embodiment is as follows:
when the temperature of oil in the gearbox is higher than 20 ℃, the hydraulic pump 3 absorbs oil from the gearbox oil pan 1 through the filter 2 in the whole machine starting stage, the oil port P of the gearbox control valve 4 is connected with the hydraulic pump, the oil way is divided into two paths by the gearbox control valve 4, one path flows to the oil port a of the temperature-saving valve 71, because the temperature of the oil is higher than 20 ℃, the oil port a of the temperature-saving valve is communicated with the oil port b of the temperature-saving valve, the oil lubricates the gearbox through the oil port b of the temperature-saving valve and the radiator 6, and the other path supplies oil to the gearbox clutch 5 through the valve 42 to realize the combination of clutch, so that the whole machine starting gear shift is realized.
When the temperature of oil in the gearbox is lower than 20 ℃, the whole machine starts the stage, the hydraulic pump 3 absorbs oil from the gearbox oil pan 1 through the filter 2, the oil port P of the gearbox control valve 4 is connected with the hydraulic pump, the gearbox control valve 4 divides an oil path into two paths, one path flows to the oil port a of the temperature-saving valve 71, and as the temperature of the oil is lower than 20 ℃, the oil port a of the temperature-saving valve is communicated with the oil port c, the oil is recirculated, the gearbox is lubricated directly without passing through a radiator, so that the temperature of the oil can be quickly increased, and the other path supplies oil to the gearbox clutch 5 through the valve 42 to realize the combination of the clutch, thereby realizing the whole machine starting gear shifting. The oil temperature is reduced, the oil return amount is reduced, the combination speed of the clutch is reduced, the gear shifting quality is poor when the power shift gearbox is just started, and the lubricating loop does not pass through the radiator, so that the oil temperature can be rapidly increased, and the gear shifting quality is improved when the power shift gearbox is started.
In this embodiment, the temperature range of the throttle valve is-10 to 40 ℃.
Example 2
As shown in fig. 2, a transmission lubrication circuit system includes a transmission oil pan 1, a filter 2, a hydraulic pump 3, a transmission control valve 4, a clutch 5, a radiator 6, a solenoid valve 72, a controller 8, and a temperature sensor 9.
The hydraulic pump 3 absorbs oil from the oil pan 1 of the gearbox through the filter 2, an oil port P of the control valve 4 of the gearbox is connected with the hydraulic pump, the control valve 4 of the gearbox divides an oil path into two paths, one path supplies oil to the clutch 5 of the gearbox through the valve 42, the other path supplies lubrication flow to the gearbox through the valve 41, the temperature sensor 9 detects the temperature of oil in the oil pan 1 of the gearbox and transmits the information to the controller 8, when the temperature of the oil is higher than 20 ℃, the controller 8 sends out a command, the electromagnetic valve 72 is not electrified, the oil passes through the left position of the electromagnetic valve 72 and flows through the radiator 6 to lubricate the gearbox, when the temperature of the oil is lower than 20 ℃, the controller 8 sends out a command, the electromagnetic valve 72 is electrified, and the oil passes through the right position of the electromagnetic valve 72 to lubricate the gearbox directly.
The specific embodiment is as follows:
when the temperature of oil in the gearbox is higher than 20 ℃, the whole machine starts the stage, the hydraulic pump 3 absorbs oil from the gearbox oil pan 1 through the filter 2, the oil port P of the gearbox control valve 4 is connected with the hydraulic pump, the gearbox control valve 4 divides an oil path into two paths, one path carries out lubrication flow to the gearbox through the valve 41, the temperature sensor 9 detects the temperature of the oil in the gearbox oil pan 1 and transmits the information to the controller 8, the oil temperature is higher than 20 ℃, the controller 8 sends out a command, the electromagnetic valve 72 is not electrified, the oil passes through the left position of the electromagnetic valve 72 and lubricates the gearbox through the radiator 6, and the other path supplies oil to the gearbox clutch 5 through the valve 42 to realize the combination of clutch, thereby realizing the whole machine starting and gear shifting.
When the temperature of oil in the gearbox is lower than 20 ℃, the whole machine starts the stage, the hydraulic pump 3 absorbs oil from the gearbox oil pan 1 through the filter 2, the oil port P of the gearbox control valve 4 is connected with the hydraulic pump, the gearbox control valve 4 divides an oil path into two paths, one path carries out lubrication flow to the gearbox through the valve 41, the temperature sensor 9 detects the temperature of the oil in the gearbox oil pan 1 and transmits the information to the controller 8, the oil temperature is lower than 20 ℃, the controller 8 sends out a command, the electromagnetic valve 72 is electrified, the oil passes through the right position of the electromagnetic valve 72, the oil carries out small circulation and directly lubricates the gearbox, the radiator is not passed, thus the oil temperature can be rapidly lifted, the other path supplies oil to the gearbox clutch 5 through the valve 42, the combination of the clutch is realized, and the whole machine starts the gear shift is realized. The oil temperature is reduced, the oil return amount is reduced, the combination speed of the clutch is reduced, the gear shifting quality is poor when the power shift gearbox is just started, and the lubricating loop does not pass through the radiator, so that the oil temperature can be rapidly increased, and the gear shifting quality is improved when the power shift gearbox is started.
In this embodiment, the controller sets the temperature range to-10 ℃ to 40 ℃.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (5)
1. The transmission lubrication loop system comprises a transmission oil pan, a filter, a hydraulic pump, a transmission control valve, a clutch and a radiator, and is characterized in that the hydraulic pump absorbs oil from the transmission oil pan through the filter, an oil port P of the transmission control valve is connected with the hydraulic pump, the transmission control valve divides an oil path into two paths, one path supplies oil to the transmission clutch through the valve, the other path flows to the radiator, the transmission lubrication loop system further comprises a temperature control valve, the temperature control valve is arranged between the transmission control valve and the radiator, the other path of the temperature control valve is directly communicated with a transmission pipeline and is used for detecting the temperature of the lubrication oil of the power shift transmission, and when the temperature of the oil is lower than the set temperature, the temperature control valve enables the oil in the power shift transmission not to circulate through the radiator but to flow back into the transmission;
the temperature control valve is a temperature-saving valve; the hydraulic pump absorbs oil from the oil pan of the gearbox through a filter, an oil port P of a control valve of the gearbox is connected with the hydraulic pump, an oil way is divided into two paths by the control valve of the gearbox, one path supplies oil to a clutch of the gearbox through a valve, the other path flows to an oil port a of a temperature-saving valve, when the temperature of the oil is higher than a set temperature, the oil port a of the temperature-saving valve is communicated with an oil port b of the temperature-saving valve, the oil lubricates the gearbox through the oil port b of the temperature-saving valve and a radiator, and when the temperature of the oil is lower than the set temperature, the oil is communicated with an oil port c of the temperature-saving valve, and the oil directly lubricates the gearbox;
or the temperature control valve is an electromagnetic valve and a controller, and a temperature sensor is arranged in the oil pan of the gearbox; the temperature sensor is connected with the controller; the hydraulic pump is connected with the hydraulic pump from the gearbox oil pan oil absorption through the filter, gearbox control valve hydraulic fluid port P is connected with the hydraulic pump, the gearbox control valve divide into two way with the oil circuit, the oil feeding is carried out to gearbox clutch through the valve all the way, the oil temperature in the gearbox oil pan is detected to the temperature sensor through the valve all the way, and the controller is given in the transmission, when oil temperature is greater than the settlement temperature, the controller control solenoid valve can not get the electricity, oil passes the solenoid valve left bit, the radiator is passed through and is lubricated for the gearbox, when oil temperature is less than the settlement temperature, the controller control solenoid valve gets the electricity, oil passes the solenoid valve right bit, directly lubricate for the gearbox.
2. The transmission lubrication circuit system according to claim 1, wherein: the temperature range of the temperature control valve is-10 ℃ to 40 ℃.
3. The transmission lubrication circuit system according to claim 2, wherein: the temperature range of the temperature control valve is 20 ℃.
4. The transmission lubrication circuit system according to claim 1, wherein: the temperature range of the controller is-10-40 ℃.
5. The transmission lubrication circuit system according to claim 4, wherein: the controller sets the temperature range to 20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364018.3A CN106969137B (en) | 2017-05-22 | 2017-05-22 | Gearbox lubrication circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364018.3A CN106969137B (en) | 2017-05-22 | 2017-05-22 | Gearbox lubrication circuit system |
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| Publication Number | Publication Date |
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| CN106969137A CN106969137A (en) | 2017-07-21 |
| CN106969137B true CN106969137B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710364018.3A Active CN106969137B (en) | 2017-05-22 | 2017-05-22 | Gearbox lubrication circuit system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489758A (en) * | 2017-09-26 | 2017-12-19 | 中联重机股份有限公司 | A kind of transmission case lubrication and the common oil system of clutch power-assisted |
| CN108571583A (en) * | 2018-06-14 | 2018-09-25 | 格特拉克（江西）传动系统有限公司 | A kind of wet-type dual-clutch gear box casing oil circulation device |
| CN110469656B (en) * | 2019-07-12 | 2021-02-26 | 王昱生 | Oil circulating device and method of pressure changing device |
| CN112049922A (en) * | 2020-08-17 | 2020-12-08 | 东风越野车有限公司 | Oil cooling control device for transfer case of military vehicle |
| CN112196989A (en) * | 2020-11-16 | 2021-01-08 | 湘潭大学 | Automatic gearbox lubricating and cooling device and control method |
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| CN206738557U (en) * | 2017-05-22 | 2017-12-12 | 徐工集团工程机械股份有限公司 | A kind of gearbox lubrication circuit system |
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2017
- 2017-05-22 CN CN201710364018.3A patent/CN106969137B/en active Active
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| JP2009144876A (en) * | 2007-12-18 | 2009-07-02 | Nissan Motor Co Ltd | Lubricating oil control device for transmission |
| JP2010242862A (en) * | 2009-04-06 | 2010-10-28 | Toyota Motor Corp | Oil temperature control device for transmission |
| CN204828619U (en) * | 2015-08-20 | 2015-12-02 | 山推工程机械股份有限公司 | A steering system newly changes speed |
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| CN106969137A (en) | 2017-07-21 |
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