CN110848285A - Power gear shifting gearbox and gearbox control system - Google Patents
Power gear shifting gearbox and gearbox control system Download PDFInfo
- Publication number
- CN110848285A CN110848285A CN201911277376.6A CN201911277376A CN110848285A CN 110848285 A CN110848285 A CN 110848285A CN 201911277376 A CN201911277376 A CN 201911277376A CN 110848285 A CN110848285 A CN 110848285A
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- Prior art keywords
- hydraulic
- gearbox
- oil
- clutch
- valve group
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- 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.)
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims abstract description 15
- 239000010687 lubricating oil Substances 0.000 claims abstract 2
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000001050 lubricating effect Effects 0.000 claims description 8
- 239000010721 machine oil Substances 0.000 claims description 6
- 239000010705 motor oil Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims 1
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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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
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0287—Hydraulic circuits combining clutch actuation and other hydraulic systems
- F16D2048/029—Hydraulic circuits combining clutch actuation with clutch lubrication or cooling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a power gear shifting gearbox, which comprises a gearbox body, wherein a first shaft and a second shaft are installed in the gearbox body, five oil holes are formed in the second shaft along the axial direction, the four oil holes are respectively communicated with four wet clutches, and the other oil hole is used as a lubricating oil channel and is connected with an external hydraulic oil input pipeline. When the tractor is loaded, the gears can be replaced without stepping on the clutch in the advancing process, the whole control system can accurately control hydraulic oil, and the stability of a hydraulic system is ensured, so that the gears of the clutch can be combined more stably, the impact of the tractor in the gear shifting driving process is greatly reduced, oil ducts for hydraulic control and lubrication are arranged in the gearbox body and the shaft, and the space distribution is reasonable.
Description
Technical Field
The invention relates to the technical field of gearboxes, in particular to a power gear shifting gearbox and a gearbox control system.
Background
China is a big agricultural country in the world and needs to support the problem that 13 hundred million people eat rice orally, and grains are a source of human life. With the continuous improvement of the degree of agricultural mechanization, the proportion of tractors with multiple functions in agricultural machinery reaches more than 70 percent, so the tractors are key important equipment in agricultural production. The tractor has wide working face, can cultivate land, harrow land, ditch, sow, reap and transport, and has the function of covering all field operations of agricultural production. The tractor has a very severe working environment, and is not only suitable for various field operations in plain, but also suitable for field operations in mountainous areas and hills and paddy field operations. Particularly, in clay areas in the middle and downstream of Yangtze river, most tractors work under an overload state when the tractors work in rain or after rain.
The gearbox is an important part on the tractor, and can change the transmission ratio and enlarge the torque and the rotating speed of a driving wheel. With the development of modern science and technology, the gearbox is also upgraded, and the control is more and more convenient from the original manual gearbox to the current stepless gearbox from the synchronizer-free gearbox to the synchronizer-containing gearbox. The existing tractor gearbox is unstable in gear shifting, a hydraulic system of the gearbox is not stable enough, and the gearbox is enabled to shift gears and is greatly impacted.
Disclosure of Invention
The present invention aims to provide a powershift gearbox and a gearbox control system to solve the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a power gearbox of shifting, includes the gearbox box, installs primary shaft and secondary shaft in the gearbox box, all install four gears of intermeshing on the spline of primary shaft and secondary shaft, install four wet clutch on the secondary shaft, the secondary shaft is inside to be provided with five oilholes along axial direction, and wherein four oilholes respectively with four wet clutch intercommunication, another the oilhole is as lubricated oil duct and outside hydraulic oil input pipe connection.
The utility model provides a power gearbox control system that shifts, above-mentioned gearbox, it still includes suction filter, gear pump, pressure boost filter, valves, clutch electrohydraulic valve group, lubricating system choke valve, fender booster unit and machine oil radiator, suction filter one end with the hydraulic oil exit linkage of gearbox box, the suction filter other end is connected with the gear pump intercommunication, and the gear pump other end is connected with pressure boost filter, and the pressure boost filter other end is connected with the valves, and the valves still is connected with clutch electrohydraulic valve group, lubricating system choke valve and machine oil radiator, and the valves advances to be connected with gearbox box hydraulic oil through the machine oil radiator, clutch electrohydraulic valve group still is connected with hydraulic booster unit.
Preferably, the control valve group consists of an overflow valve, a safety valve, a cold start valve and a radiator valve which are communicated with each other, and the other end of the radiator valve is respectively connected with the engine oil radiator and the lubricating system throttle valve.
Preferably, the clutch electrohydraulic valve group is composed of four electrohydraulic valves.
Preferably, the hydraulic booster device is composed of four hydraulic boosters, and the four hydraulic boosters are respectively connected with four electro-hydraulic valves.
Preferably, a clutch pressure sensor is installed at the connecting position of the hydraulic booster and the four electro-hydraulic valves.
Preferably, a control pressure sensor is arranged between the clutch electro-hydraulic valve group and the control valve group.
Preferably, a blockage sensor is mounted on the pressure filter.
Preferably, a temperature sensor and a vent plug are further mounted on the gearbox body.
Compared with the prior art, the invention has the beneficial effects that:
when the invention is in load, the gear can be changed without stepping on the clutch in the advancing process.
Whole control system can accurate control hydraulic oil, has guaranteed hydraulic system's stability to can make the clutch gear combine more steadily, the tractor shifts the process impact nature of traveling and reduces greatly.
The hydraulic control and lubrication oil ducts are arranged in the gearbox body and the shaft, and the space distribution is reasonable.
Drawings
FIG. 1 is a coupling diagram of a powershift transmission control system according to the present invention;
FIG. 2 is a block diagram of a powershift transmission of the present invention.
In the figure: the system comprises a transmission case 1, a first shaft 2, a second shaft 3, a gear 4, a wet clutch 5, a suction filter 6, a temperature sensor 7, a vent plug 8, a gear pump 9, a booster filter 10, an overflow valve 11, a safety valve 12, a cold start valve 13, a radiator valve 14, a lubrication system throttle valve 15, a clutch electro-hydraulic valve 16, a control pressure sensor 17, a clutch pressure sensor 18, a hydraulic booster 19, an engine oil radiator 20 and a blockage sensor 21.
Detailed Description
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.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a power gearbox of shifting, including gearbox housing 1, install primary shaft 2 and secondary shaft 3 in the gearbox housing, all install four gears 4 of intermeshing on the spline of primary shaft 2 and secondary shaft 3, install four wet clutch 5 on the secondary shaft 3, the inside five oilholes that are provided with along axial direction of secondary shaft 3, wherein four oilholes communicate with four wet clutch 5 respectively, another oilhole is connected with outside hydraulic oil input pipeline as lubricated oil duct, the separation and the combination of wet clutch are controlled through lubricated oil duct and the inside oilhole of secondary shaft to outside hydraulic oil.
Referring to fig. 2, a power shift gearbox control system, the above gearbox, it still includes suction filter 6, gear pump 9, pressure boost filter 10, the control valve group, clutch electrohydraulic valve group 16, lubricating system choke valve 15, fender booster unit and engine oil radiator 20, suction filter 6 one end and the hydraulic oil outlet connection of gearbox housing 1, suction filter 6 other end and gear pump 9 intercommunication are connected, the gear pump 9 other end is connected with pressure boost filter 10, the pressure boost filter 10 other end is connected with the control valve group, the control valve group still with clutch electrohydraulic valve group 16, lubricating system choke valve 15 and engine oil radiator 20 are connected, the control valve group is connected with gearbox housing 1 hydraulic oil through engine oil radiator 20, clutch electrohydraulic valve group 16 still is connected with hydraulic booster unit.
In this embodiment, the control valve group is composed of an overflow valve 11, a safety valve 12, a cold start valve 13, and a radiator valve 14 that are communicated with each other, and the other end of the radiator valve 14 is connected to an oil radiator 20 and a lubrication system throttle 15, respectively.
In this embodiment, the clutch electrohydraulic valve group 16 is composed of four electrohydraulic valves.
In the present embodiment, the hydraulic booster 19 is composed of four hydraulic boosters, and the four hydraulic boosters are connected to four electrohydraulic valves, respectively.
In this embodiment, the connection positions of the hydraulic booster and the four electrohydraulic valves are both provided with clutch pressure sensors 19 for determining whether the pressure of the hydraulic oil flowing through is normal.
In this embodiment, a control pressure sensor 17 is installed between the clutch electrohydraulic valve group 16 and the control valve group, so that whether the pressure of the hydraulic oil flowing through is normal can be judged.
In this embodiment, the pressure filter 10 is provided with a clogging sensor 21.
In this embodiment, the gearbox housing 1 is further provided with a temperature sensor 7 and a vent plug 8, and the temperature sensor 7 can display the temperature of hydraulic oil inside the gearbox housing 1.
The working principle is as follows: the gear pump 9 obtains hydraulic oil from the gearbox body 1 through the suction type coarse filter 6, supplies the hydraulic oil to an overflow valve 11 of a control system through a pressurizing filter 10 after purification treatment, and supplies the hydraulic oil to a clutch electro-hydraulic valve 16 used for opening a hydraulic clutch at each gear. When the electrohydraulic clutch valve 16 is open, all of the oil is supplied to the open hydraulic clutch, and when it is closed, hydraulic oil flows out of the clutch into the transmission housing 1. After the gear is opened, or when the gear is in a neutral position, the oil flow enters and lubricates various parts of the gearbox housing 1 through the overflow valve 11, is further cooled through the oil radiator 20, and finally overflows into the gearbox housing 1 for circulation and sedimentation. A pressure sensor in the gearbox control system can indicate the temperature by whether the system is working properly or not and a temperature sensor 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a power gearbox of shifting, includes the gearbox box, installs primary shaft and secondary shaft in the gearbox box, all install four gears of intermeshing on the spline of primary shaft and secondary shaft, install four wet clutch, its characterized in that on the secondary shaft: five oil holes are formed in the second shaft along the axial direction, wherein four oil holes are respectively communicated with four wet clutches, and the other oil hole is used as a lubricating oil passage and is connected with an external hydraulic oil input pipeline.
2. A powershift transmission control system, comprising the transmission of claim, wherein: it still includes suction filter, gear pump, pressure boost filter, control valve group, clutch electrohydraulic valve group, lubricating system choke valve, fender booster unit and machine oil radiator, suction filter one end with the hydraulic oil exit linkage of gearbox box, the suction filter other end is connected with the gear pump intercommunication, and the gear pump other end is connected with pressure boost filter, and the pressure boost filter other end is connected with the control valve group, and the control valve group still is connected with clutch electrohydraulic valve group, lubricating system choke valve and machine oil radiator, and the control valve group advances to be connected with gearbox box hydraulic oil through machine oil radiator, clutch electrohydraulic valve group still is connected with hydraulic booster unit.
3. The powershift transmission control system of claim 2, wherein: the control valve group consists of an overflow valve, a safety valve, a cold start valve and a radiator valve which are communicated with each other, and the other end of the radiator valve is respectively connected with an engine oil radiator and a lubricating system throttle valve.
4. The powershift transmission control system of claim 2, wherein: the clutch electrohydraulic valve group is composed of four electrohydraulic valves.
5. The powershift transmission control system of claim 2, wherein: the hydraulic booster device is composed of four hydraulic boosters, and the four hydraulic boosters are respectively connected with four electro-hydraulic valves.
6. The powershift transmission control system of claim 5, wherein: and clutch pressure sensors are arranged at the connecting positions of the hydraulic booster and the four electro-hydraulic valves.
7. The powershift transmission control system of claim 2, wherein: and a control pressure sensor is arranged between the clutch electro-hydraulic valve group and the control valve group.
8. The powershift transmission control system of claim 2, wherein: and a blockage sensor is arranged on the pressurizing filter.
9. The powershift transmission control system of claim 2, wherein: and the gearbox body is also provided with a temperature sensor and a ventilation plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277376.6A CN110848285A (en) | 2019-12-13 | 2019-12-13 | Power gear shifting gearbox and gearbox control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277376.6A CN110848285A (en) | 2019-12-13 | 2019-12-13 | Power gear shifting gearbox and gearbox control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110848285A true CN110848285A (en) | 2020-02-28 |
Family
ID=69608954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911277376.6A Withdrawn CN110848285A (en) | 2019-12-13 | 2019-12-13 | Power gear shifting gearbox and gearbox control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110848285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151516A (en) * | 2020-09-08 | 2022-03-08 | 杭州前进齿轮箱集团股份有限公司 | Gearbox of crawler carrier vehicle for agriculture and forestry |
-
2019
- 2019-12-13 CN CN201911277376.6A patent/CN110848285A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151516A (en) * | 2020-09-08 | 2022-03-08 | 杭州前进齿轮箱集团股份有限公司 | Gearbox of crawler carrier vehicle for agriculture and forestry |
| CN114151516B (en) * | 2020-09-08 | 2024-04-12 | 杭州前进齿轮箱集团股份有限公司 | Agricultural and forestry crawler belt transport vehicle gearbox |
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| 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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200401 Address after: 271209 Guodu Town Industrial Park, Xintai City, Tai'an City, Shandong Province Applicant after: TAI'AN TAISHAN GUOTAI TRACTORS Co.,Ltd. Address before: 271209 fruit industry park, Xintai, Shandong, Tai'an Applicant before: Yang Xuedong |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200228 |