CN2540319Y - Power operation device of speed variator - Google Patents
Power operation device of speed variator Download PDFInfo
- Publication number
- CN2540319Y CN2540319Y CN 02207361 CN02207361U CN2540319Y CN 2540319 Y CN2540319 Y CN 2540319Y CN 02207361 CN02207361 CN 02207361 CN 02207361 U CN02207361 U CN 02207361U CN 2540319 Y CN2540319 Y CN 2540319Y
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- Prior art keywords
- piston
- cylinder
- connecting rod
- change
- spool
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Abstract
The utility model discloses a boost operator of vehicle speed changer, wherein a shift handle is connected with a steel cable with a lock pin, a connecting bar connected with the lock pin is fixed with the valve pin of a valve, the valve is arranged with air inlet and outlet tube, the air outlet tube is connected into the chamber of a piston cylinder, a piston is arranged between the air inlet and outlet of the piston cylinder, a spline of control shaft of the gear box is controlled by the valve to operate via the pushing of the piston to control the rotation and axial movement of the spline, to select and enter shift. The utility model has flexible operation with saved force.
Description
Technical field
The utility model discloses a kind of handling device of Automotive transmission, especially can provide power-assisted handling device.
Background technology
At present, the handling device of most of Automotive transmission all adopts direct coupled mode to implement to regulate, the handling device of this direct adjusting is that power is directly delivered on the change-speed box by the connecting rod that links to each other with joystick, and this device exists the defective of handling effort.
Technology contents
The purpose of this utility model provides the power-assisted handling device of a kind of manual dexterity, labour-saving change-speed box.
For achieving the above object, the technical solution adopted in the utility model is: a kind of power-assisted handling device of change-speed box, it is characterized in that: the lower end of gear shifting handle is connected with cable wire, its inner cable core that is provided with links to each other with an end of connecting rod, the other end of connecting rod extends in the valve body and is connected with spool in it, be connected with on the valve body into, bleeder line, above-mentioned bleeder line is connected in the chamber of piston-cylinder, be positioned at advancing of piston-cylinder, be provided with piston between the exhausr port, the piston rod that is connected on it constitutes the shift displacement action by connecting rod and by the spline fitted of transmission device and change-speed box.
In the technique scheme, as the controlled valve control of the spline of the actuating spindle of change speed gear box and be subjected to the promotion of piston rod and move, specifically it can be made axial rotation and move vertically, because of spline rotates is into shelves action, a bucket cylinder can only be controlled an action, and the piston rod that links to each other with rocking arm is only controlled its rotation; Spline can slide when mobile vertically to realize gear selecting.The utlity model has the characteristics of manual dexterity, labour-saving change-speed box.
Description of drawings
Fig. 1 is a schematic perspective view of the present utility model;
Fig. 2 is to use state stereogram;
Fig. 3 is a principle schematic of the present utility model;
The structural representation of Fig. 4 control cock;
Fig. 5 is the structural representation of piston-cylinder.
Fig. 6 is the structural representation of the utility model when hydraulic medium.
The specific embodiment
Embodiment 1
The lower end of gear shifting handle 24 is connected with cable wire 22, its inner cable core 23 that is provided with links to each other with an end of connecting rod 10, the other end of connecting rod 10 extends in the valve body 1 and is connected with spool 3 in it, be connected with inlet and outlet pipeline on the valve body 1, above-mentioned bleeder line is connected in the chamber of piston-cylinder 2, be provided with piston 12 between the inlet and outlet mouth of piston-cylinder 2, the piston rod 11 that is connected on it constitutes the shift displacement action by connecting rod 13 and by the spline fitted of transmission device and change-speed box.Described cable wire 22 is fixed on the car body by fixed support 20.
The lower end of gear shifting handle 24 is connected with two secondary cable wires 22, two secondary cable wires 22 connect one group of valve body 1 and piston-cylinder 2 assemblies respectively by its cable core 23 separately, wherein the piston 12 of a piston-cylinder 2 links to each other with rocking arm 21 by connecting rod 13; rocking arm 21 is fixed with spline 25 coaxial rotation, and the piston 12 of another piston-cylinder 2 is by connecting rod and spline 25 axial restraints.
Designed boss 8a, the 8b of spacing usefulness at spool 3 two, boss 8a, 8b place are provided with pull back spring 9a, 9b spool 3 middle parts axially are processed with balance hole 19.As shown in Figure 4, valve body 1 is provided with air extractor duct 5a, 5b, return-air mouth 6a, 6b, air extractor duct 7a, 7b, exhausr port 14a, 14b, admission port 15a, 15b, air extractor duct 16a, 16b, air intake 17a, 17 and return-air chamber 32a, 32b, as shown in Figure 4, piston-cylinder 2 is divided into two epitrochoidal chamber 42a, 42b by piston 12 with its inside, also is provided with check valve 18a, 18b between valve 1 and the piston-cylinder 2.
Below in conjunction with principle of work to structure further instruction of the present utility model.
Referring to Fig. 1,2,3,4,5, when manipulation cable core 23 is moved to the left, cable core 23 promotes spool 3 compression retracteding position spring 9a through connecting rod 10, spool 3 is done to left movement with respect to valve body 1, return-air mouth 6a is closed, when return-air mouth 6a had just closed, air extractor duct 5a just in time opened, and the switching of air extractor duct 5a and return-air mouth 6a is that finish size with spool 3 and valve body 1 is assurance synchronously.The aperture size of air extractor duct 5a is to be directly proportional with the size of the power that overcomes pull back spring 9a.At this moment, pressurized air is imported by gas piping, and through admission port 4, pressure chamber 31, air extractor duct 5a enters in the epitrochoidal chamber 42a that is separated by the piston in the bucket cylinder 2 12 through air hose to admission port 15a, have only return-air mouth 6a because of the outlet that communicates with epitrochoidal chamber 42a, blocked by spool 3.Therefore pressurized air promotes the thrust that piston 12 produces left in epitrochoidal chamber 42a.The size of thrust is decided by effective working area of piston, and this thrust acts on the change lever 21 through connecting rod 13, and change lever 21 is moved to the left.Because of valve body 1 is fixed on the change lever 21, so valve body 1 together moves to left with change lever 21.The power that acts on the pull back spring 9a is eliminated.This variation is delivered to through cable wire 22 on the gear shifting handle 24 of chaufeur, the power that chaufeur continues left for cable core 23.Continue above-mentioned action, arrive sync bit up to change lever 21.At this moment chaufeur is removed the power that acts on cable core 23, makes spool 3 get back to the position of center under the effect of pull back spring 9a.At this moment the pressurized air in the epitrochoidal chamber 42a arrives return-air chamber 32a through air extractor duct 16a cooled via return air mouth 6a.In the 32a of return-air chamber, be provided with air extractor duct 7a, air extractor duct 7a and exhausr port 14a are open in usual, can not close because of the action of spool 3, pressurized air one route exhausr port 14a exhaust to atmosphere, one route air extractor duct 7a enters the epitrochoidal chamber 42b in piston 12 left sides through check valve 18a, air intake 17a, stop piston 12 to be moved to the left, make the interior pressure of epitrochoidal chamber of piston 12 left and right sides reach consistent, and excess pressure is together discharged into the atmosphere through exhausr port 14a, 14b with the fastest speed.
When chaufeur is handled cable wire work to the right, its principle of work is as above-mentioned action left, no longer repeat at this, sway and move axially two aspects because of the action of the joystick on the change speed gear box is divided into, therefore, the operating control of actual installation on change speed gear box has two covers, only needing that it is installed in the appropriate location gets final product, when working because of the change speed gear box of different model, required actuating force difference, and axial motion is different with the required actuating force of swaying, and can select the different cylinder of coupling according to actual conditions.
Because of automobile air pressure instability in actual use, can before air inlet 4, add an air chamber of regulating through oil release valve, make input pressure chamber 31 after the high pressure air step-down, can guarantee simultaneously under the situation of car load air pressure shakiness for gearshift provides stable source of the gas, to guarantee the stable of driver's feel.
For preventing that overload situations from appearring in pull back spring 9a, 9b, designed boss 8a, the 8b of spacing usefulness at spool 3 two, all opened when moving valve core 3 makes air extractor duct and 5a or 5b, boss 8a or 8b just offset with valve body 1, prevent excessive compression pull back spring 9a, 9b, guarantee its service life.
Axially be processed with balance hole 19 at spool 3 middle parts, when being used for spool 3 work the pressure at spool 3 two ends equated.
For improving the manipulation feel of gear shift, can carry out appropriate design to the elastic force of pull back spring 9a, 9b, protect the elastic force of obviously feeling spring with the card operator.
Connecting portion at cable core 23 and connecting rod 10 can design one section play motion, and in order to the usefulness of adjustment is installed, other parts can not stayed play motion, to improve shift feel.
As mentioned above, when the operator to cable control the time, all actuating force compression retracteding position springs, thereby air extractor duct 7a or 7b are opened, and as can be seen from Figure 4, the aperture of air extractor duct 7a, 7b directly has influence on the aeration speed of epitrochoidal chamber 42a, 42b, when the operator handles cable wire with slower speed, aeration speed is also just slower, and the power that piston 12 acts on the gear shifting handle just increases with slower speed, till the gear in making change speed gear box reaches synchronously.As mentioned above,, air extractor duct 7a or 7b are opened fast, aeration speed is accelerated, make change lever 21 quick actions, enter required gear when the operator handles cable wire with fast speeds.So, operator's actuating force slightly become geometric ratio obtain act on the change speed gear box after amplifying, play the effect of reinforcement, gear shift.
For driver's traffic safety is improved, must make its action all in the process of driving a car easy and flexible as much as possible.As driver's gear shift fast time the, also corresponding shortening of shift time of the present utility model.Whether gear is entered or how long synchronous phase continues, the driver can feel, keeps good discriminability, in gearshift procedure, the driver can continue to feel that in change speed gear box to the feedback of gearshift procedure, the driver can at any time cut off ongoing gearshift procedure.
By strengthening designing and arranging gas port and air extractor duct 7a, 7b, can guarantee in gearshift procedure, to cut off when finishing, gearshift is not externally in release action power.
By the flexible axle cable control whole device is arranged flexibly in the design of car body.This device also can otherwise carry out appropriate design, as replacing flexible axle with a series of lever system, also can reach same effect.
The foregoing description 1 is suitable for the compressed-air controlled situation, the situation brief description of 2 pairs of liquid dielectrics of following examples.
When pilot control gear shifting handle 24, make the cable core 23 of cable wire 22 do being moved to the left when stretching out among Fig. 6, spool 3 is moved to the left, because of valve body 1 is mounted on the rocking arm 21,, liquid outlet 5a is opened so spool 3 has had relative displacement with valve body 1.At this moment hydraulic oil rises the pressure in the epitrochoidal chamber 42a by entering epitrochoidal chamber 42a through oil inlet 4, pressure chamber 31, oil outlet 5a, oil inlet 15a shown in the arrow among the figure, and piston 12 moves to left, and makes connecting rod 13 drive rocking arm 21 and moves to left.In the present embodiment, can open simultaneously when oil outlet 5a and return opening 6a work, the relation of the free area between two holes is the character that is inversely proportional to.Among Fig. 6, when oil outlet 5a is closed, return opening 6a standard-sized sheet.When oil outlet 5a standard-sized sheet (free area maximum), return opening 6a closes.Also its position can be done the design of other form, as, when oil outlet 5a opens a part (free area that has certain pressure oil to flow), return opening 6a return opening 6a begins closing movement etc.During real work, when the application force of chaufeur is big or fast, drives cable core 23 and move to left fast, make spool 3 Fast Compression pull back spring 9a left, boss 8a is pressed against on the valve body 1, at this moment oil outlet 5a opens fully, and return opening 6a closes.Hydraulic oil enters in the epitrochoidal chamber 42a with the fastest speed, and piston 12 moves to left.Hydraulic oil in the epitrochoidal chamber 42a reenters in the Hydraulic Pump through oil outlet 16b, return opening 6b, oil discharge outlet 14b under the effect of piston 12.Because of effective flow area maximum of oil outlet 5a at this moment, the hydraulic oil that enters in the epitrochoidal chamber 42a is the fastest, and return opening 6a closes, and does not have the return loss of oil, so gear shift at this moment is fastest.The size that cause acts on the berth-changing strength in the change-speed box is to be decided by the pressure of liquid and the working area of piston 12, so, only need appropriate design, effective working sections of the pressure of hydraulic oil and piston 12 just can accomplish to prevent that the pressure of connecting rod 13 outputs is excessive, causes the damage of transmission gear.
As mentioned above, when chaufeur was used on the gear shifting handle 24 with less masterpiece, pull back spring 9a will partly be compressed, and made return opening 6a can not close (having certain clearance that hydraulic oil is refluxed).So just be equivalent to make the pressure of the hydraulic oil in the epitrochoidal chamber 42a necessarily to be reduced, the power that so just causes output is less than maxim.Make gear shifting handle 24 with slower action movement.It is synchronous that gear slowly reaches.
Claims (3)
1. the power-assisted handling device of a change-speed box, it is characterized in that: the lower end of gear shifting handle (24) is connected with cable wire (22), its inner cable core (23) that is provided with links to each other with an end of connecting rod (10), the other end of connecting rod (10) extends in the valve body (1) and is connected with spool (3) in it, valve body is connected with on (1), bleeder line, above-mentioned bleeder line is connected in the chamber of piston-cylinder (2), be positioned at advancing of piston-cylinder (2), be provided with piston (12) between the exhausr port, the piston rod that is connected on it (11) constitutes the shift displacement action by connecting rod (13) and by the spline fitted of transmission device and change-speed box.
2. the power-assisted handling device of change-speed box according to claim 1, it is characterized in that: the lower end of gear shifting handle (24) is connected with two secondary cable wires (22), two secondary cable wires (22) connect one group of valve body (1) and piston-cylinder (2) assembly respectively by its cable core (23) separately, wherein the piston (12) of a piston-cylinder (2) links to each other with rocking arm (21) by connecting rod (13); rocking arm (21) is fixed with spline (25) coaxial rotation, and the piston (12) of another piston-cylinder (2) is by connecting rod and spline (25) axial restraint.
3. the power-assisted handling device of change-speed box according to claim 1, it is characterized in that: designed boss (8a), (8b) of spacing usefulness at spool (3) two, boss (8a), (8b) locate to be provided with pull back spring (9a), (9b) spool (3) middle part axially is processed with balance hole (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02207361 CN2540319Y (en) | 2002-03-06 | 2002-03-06 | Power operation device of speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02207361 CN2540319Y (en) | 2002-03-06 | 2002-03-06 | Power operation device of speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2540319Y true CN2540319Y (en) | 2003-03-19 |
Family
ID=33688370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02207361 Expired - Fee Related CN2540319Y (en) | 2002-03-06 | 2002-03-06 | Power operation device of speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2540319Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291892A (en) * | 2012-03-05 | 2013-09-11 | 本田技研工业株式会社 | Operation rope supporting structure of speed changer |
| CN103465781A (en) * | 2013-09-29 | 2013-12-25 | 山东时风（集团）有限责任公司 | Vehicle gear shifting boosting system |
| CN104964030A (en) * | 2015-06-03 | 2015-10-07 | 潍柴动力股份有限公司 | Speed change control mechanism and medium-pressure servo gear shifting power-assistance air cylinder thereof |
-
2002
- 2002-03-06 CN CN 02207361 patent/CN2540319Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291892A (en) * | 2012-03-05 | 2013-09-11 | 本田技研工业株式会社 | Operation rope supporting structure of speed changer |
| CN103291892B (en) * | 2012-03-05 | 2016-03-09 | 本田技研工业株式会社 | The bracing wire supporting structure of speed changer |
| CN103465781A (en) * | 2013-09-29 | 2013-12-25 | 山东时风（集团）有限责任公司 | Vehicle gear shifting boosting system |
| CN103465781B (en) * | 2013-09-29 | 2016-03-23 | 山东时风（集团）有限责任公司 | A kind of automobile-used shift force aid system |
| CN104964030A (en) * | 2015-06-03 | 2015-10-07 | 潍柴动力股份有限公司 | Speed change control mechanism and medium-pressure servo gear shifting power-assistance air cylinder thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |