CN207598896U - Hydraulic gear-shifting system - Google Patents
Hydraulic gear-shifting system Download PDFInfo
- Publication number
- CN207598896U CN207598896U CN201721678063.8U CN201721678063U CN207598896U CN 207598896 U CN207598896 U CN 207598896U CN 201721678063 U CN201721678063 U CN 201721678063U CN 207598896 U CN207598896 U CN 207598896U
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- port
- solenoid valve
- brake
- clutch
- valve
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Abstract
The utility model is related to hydraulic gear-shifting systems, including working connection, the working connection is equipped with shift module, the shift module includes several brakes and clutch, the working connection is equipped with several big flow single flow solenoid valves for controlling the brake and the clutch respectively, the solenoid valve includes electromagnetic coil and valve body, changes the movement of valve body inner spool described in the controlled current flow system of electromagnetic coil, and then the hydraulic oil of application valve body output different pressures.The brake and clutch of hydraulic gear-shifting system can be connected directly by solenoid valve with working connection, solenoid valve can be by adjusting the movement of valve body inner spool described in the current control of electromagnetic coil, and then realize different hydraulic pressure outputs, so that solenoid valve not only can be directly connected on the larger working connection of oil pressure, the brake pressure demand different with clutch is adapted to, while decreases the quantity of solenoid valve and control valve in hydraulic system.
Description
Technical field
The utility model is related to hydraulic gear-shifting systems.
Background technology
As people require shift quality higher and higher, the dynamic power shift gear box application in engineering machinery at home
Also it is more and more universal.The key property of dynamic power shift gear box is exactly shift gears stationarity and rapidity, is delayed mainly by hydraulic gear-shifting
Valve control shift clutch is rushed to ensure.In the prior art, the control of clutch or brake not only needs control valve control of shifting gears
Liquefaction road, it is also necessary to which solenoid valve control is shifted gears control valve, causes control system component more and system complex.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of controls that can not only realize clutch and brake
System, while system is simplified, save the hydraulic gear-shifting system of control element.
In order to solve the above technical problems, the technical solution of the utility model is：Hydraulic gear-shifting system, including working connection, institute
Working connection is stated equipped with shift module, the shift module includes several brakes and clutch, and the working connection is equipped with number
A big flow single flow solenoid valve for controlling the brake and the clutch respectively, the solenoid valve include electromagnetic coil and
Valve body changes the movement of valve body inner spool described in the controlled current flow system of electromagnetic coil, and then application valve body exports different pressures
Hydraulic oil.
As preferred technical solution, the valve body is equipped with first and adjusts port, the second adjusting port, normally opened port and overflow
Flow port；Under the electromagnetic coil off-position, the second adjusting port is in opening, and described first is adjusted at port
In closed state；When the electromagnetic coil is powered, described first, which adjusts port and described second, adjusts port aperture size with institute
The size of current adjustment of electromagnetic coil is stated, realizes the different pressure output of the normally open end oral fluid pressure oil.
As preferred technical solution, the shift module includes the first brake B1, second brake B2, third braking
Device B3, first clutch C1 and second clutch C2, the solenoid valve include the first electromagnetism for controlling the first brake B1
Valve B1_cv；Control the second solenoid valve B2_cv of the second brake B2；Control the third electromagnetism of the third brake B3
Valve B3_cv；Control the 4th solenoid valve C1_cv of the first clutch C1；Control the 5th electromagnetism of the second clutch C2
Valve C2_cv；
Wherein, the second adjusting port of the first solenoid valve B1_cv is connected with the working connection, and first, which adjusts port, connects
Oil-piping is taken back, normally opened port is connected with the first brake B1；
The first adjusting port of the 5th solenoid valve C2_cv is connected with the working connection, and the second adjusting port connects back to
Oil-piping, normally opened port are connected with the second clutch C2；
The second of the third solenoid valve B3_cv adjusts port and includes first port and second port, first port and institute
Working connection connection is stated, second port is connected with the first adjusting port of second solenoid valve B2_cv；First adjusting port connects back to oil
Pipeline, normally opened port are connected with the first brake B3；
The second adjusting port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the described first braking
Device B2 is connected；
The first adjusting port of the 4th solenoid valve C1_cv is connected with the working connection, and the second adjusting port connects back to
Oil-piping, normally opened port are connected with the second clutch C1.
As preferred technical solution, pressure maintaining valve is provided on the working connection, the pressure maintaining valve is mechanical valve, described steady
The oil inlet end of pressure valve is connected with the second port of the third solenoid valve B3_cv.
By adopting the above-described technical solution, hydraulic system uses big flow single flow solenoid valve, since solenoid valve can lead to
Overregulate the oil pressure of the current control valve body output hydraulic pressure oil of electromagnetic coil so that brake and clutch can directly pass through electromagnetism
Valve is connected with working connection, is not only adapted to the brake pressure demand different with clutch, while decrease hydraulic system
The quantity of middle solenoid valve and control valve.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the shift logic figure of the utility model；
Fig. 2 is the schematic diagram of solenoid valve in the utility model embodiment；
Fig. 3 is the hydraulic system principle figure of the utility model.
Specific embodiment
As shown in Figures 2 and 3, the connection of hydraulic gear-shifting system working connection g, the working connection g are connected with pump oil module.Also wrap
Shift module is included, the shift module includes several brakes and clutch, and the working connection g controls institute respectively equipped with several
The big flow single flow solenoid valve of brake and the clutch is stated, the solenoid valve includes electromagnetic coil 2 and valve body 1, changes
The movement of 1 inner spool of valve body described in the controlled current flow system of electromagnetic coil 2, and then realize different hydraulic pressure outputs.The valve body 1
Port 3, second, which is adjusted, equipped with first adjusts port 4, normally opened port 5 and overflow port 6, under 2 off-position of electromagnetic coil,
The second adjusting port 4 is in opening, and the first adjusting port 3 is closed, and the electromagnetic coil 2 is logical
Electricity, described first, which adjusts port 3 and described second, adjusts size of current adjustment of the 4 aperture size of port with the electromagnetic coil 2.
After electromagnetic coil 2 is powered, electromagnetic coil 2 gives spool thrust so that spool is moved relative to valve body 1, due to the first adjusting port 3
The area that the sectional area of corresponding spool adjusts the spool corresponding to port 4 from second is different, and the first tune after spool movement
Also difference, above-mentioned two difference have realized the output to normally opened port 5 to the aperture of section port 3 and second adjusting port 4 jointly
The pressure of hydraulic oil be adjusted.
Brake and clutch are directly controlled by solenoid valve, solenoid valve have pressure adjusting function, can directly with
Working connection g is connected, and the quantity of hydraulic valve is not only reduced, while also simplify the oil circuit of hydraulic system, convenient for shifting system
Arrangement.
The shift module include the first brake B1, second brake B2, third brake B3, first clutch C1 and
Second clutch C2, the solenoid valve include the first solenoid valve B1_cv for controlling the first brake B1；Control described second
The second solenoid valve B2_cv of brake B2；Control the third solenoid valve B3_cv of the third brake B3；Control described first
The 4th solenoid valve C1_cv of clutch C1；Control the 5th solenoid valve C2_cv of the second clutch C2；Wherein, described first
The second adjusting port of solenoid valve B1_cv connect with the working connection, and first, which adjusts port, connects back to oil-piping, normally opened port and
The first brake B1 connections；The first adjusting port of the 5th solenoid valve C2_cv is connected with the working connection, and second adjusts
Port connection oil returning tube is saved, normally opened port is connected with the second clutch C2；The second of the third solenoid valve B3_cv is adjusted
It saves port and includes first port and second port, first port is connected with the working connection, second port and second solenoid valve B2_
The first of cv adjusts port connection；First adjusting port connects back to oil-piping, and normally opened port is connected with the first brake B3；
The second adjusting port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port is connected with the first brake B2；
The first adjusting port of the 4th solenoid valve C1_cv is connected with the working connection, and the second adjusting port connects back to oil-piping, often
It is ported to be connected with the second clutch C1.
Such as Fig. 1, the shift logic of hydraulic gear-shifting system, speed changer is in when reversing gear, second brake B2 and the second clutch
Device C2 is acted；In driving process, when speed changer is in a gear, the first brake B1 and second brake B2 actions；At speed changer
When two keep off, the first brake B1 and third brake B3 actions；Speed changer be in three gear when, the first brake B1 and second from
Clutch device C2 is acted；When speed changer is in four gears, the first brake B1 and first clutch device C1 actions；Speed changer is in five gears
When, first clutch C1 and second clutch device C2 are acted；When speed changer is in six gears, third brake B3 and first clutch
Device C1 is acted.
In order to which oil pressure on working connection is maintained to stablize, ensure the stabilization of brake and clutch operating, set on the working connection
It is equipped with pressure maintaining valve 7, the pressure maintaining valve 7 is mechanical valve, the of the oil inlet end of the pressure maintaining valve 7 and the third solenoid valve B3_cv
Two-port netwerk connects.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. hydraulic gear-shifting system, it is characterised in that：Including working connection, the working connection is equipped with shift module, the gearshift mould
Block includes several brakes and clutch, and the working connection is equipped with the several brake and clutches of controlling respectively
Big flow single flow solenoid valve, the solenoid valve is including electromagnetic coil and valve body, described in the controlled current flow system for changing electromagnetic coil
The movement of valve body inner spool, and then the hydraulic oil of application valve body output different pressures.
2. hydraulic gear-shifting system as described in claim 1, it is characterised in that：The valve body is equipped with first and adjusts port, second
Adjust port, normally opened port and overflow port；Under the electromagnetic coil off-position, the second adjusting port is in opening state
State, the first adjusting port are closed；When the electromagnetic coil is powered, described first adjusts port and described second
It adjusts port aperture size to adjust with the size of current of the electromagnetic coil, realizes the different pressure of the normally open end oral fluid pressure oil
Output.
3. hydraulic gear-shifting system as claimed in claim 2, it is characterised in that：The shift module include the first brake B1,
Second brake B2, third brake B3, first clutch C1 and second clutch C2, the solenoid valve include controlling described the
The first solenoid valve B1_cv of one brake B1；Control the second solenoid valve B2_cv of the second brake B2；Control described
The third solenoid valve B3_cv of three brake B3；Control the 4th solenoid valve C1_cv of the first clutch C1；Control described
The 5th solenoid valve C2_cv of two clutch C2；
Wherein, the second adjusting port of the first solenoid valve B1_cv is connected with the working connection, and the first adjusting port connects back to
Oil-piping, normally opened port are connected with the first brake B1；
The first adjusting port of the 5th solenoid valve C2_cv is connected with the working connection, and the second adjusting port connects back to oil pipe
Road, normally opened port are connected with the second clutch C2；
The second of the third solenoid valve B3_cv adjusts port and includes first port and second port, first port and the master
Oil communication, second port are connected with the first adjusting port of second solenoid valve B2_cv；First adjusting port connects back to oil pipe
Road, normally opened port are connected with the first brake B3；
The second adjusting port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the first brake B2
Connection；
The first adjusting port of the 4th solenoid valve C1_cv is connected with the working connection, and the second adjusting port connects back to oil pipe
Road, normally opened port are connected with the second clutch C1.
4. hydraulic gear-shifting system as claimed in claim 3, it is characterised in that：Pressure maintaining valve is provided on the working connection, it is described steady
Pressure valve is mechanical valve, and the oil inlet end of the pressure maintaining valve is connected with the second port of the third solenoid valve B3_cv.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678063.8U CN207598896U (en) | 2017-12-06 | 2017-12-06 | Hydraulic gear-shifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678063.8U CN207598896U (en) | 2017-12-06 | 2017-12-06 | Hydraulic gear-shifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598896U true CN207598896U (en) | 2018-07-10 |
Family
ID=62762281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721678063.8U Withdrawn - After Issue CN207598896U (en) | 2017-12-06 | 2017-12-06 | Hydraulic gear-shifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816539A (en) * | 2017-12-06 | 2018-03-20 | 盛瑞传动股份有限公司 | Hydraulic gear-shifting system |
-
2017
- 2017-12-06 CN CN201721678063.8U patent/CN207598896U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816539A (en) * | 2017-12-06 | 2018-03-20 | 盛瑞传动股份有限公司 | Hydraulic gear-shifting system |
| CN107816539B (en) * | 2017-12-06 | 2023-01-13 | 盛瑞传动股份有限公司 | Hydraulic gear shifting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180710 Effective date of abandoning: 20230113 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180710 Effective date of abandoning: 20230113 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |