CN103322187B - The device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift - Google Patents
The device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift Download PDFInfo
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- CN103322187B CN103322187B CN201310265135.6A CN201310265135A CN103322187B CN 103322187 B CN103322187 B CN 103322187B CN 201310265135 A CN201310265135 A CN 201310265135A CN 103322187 B CN103322187 B CN 103322187B
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Abstract
The invention discloses the device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift, belong to automatic gear-box technical field, the device that the pneumatic AMT shifters berth-changing strength control is buffered with gear shift, can realize gear shifting force control and gear shift buffering of the electric-controlled pneumatic type AMT gear-shifting actuating mechanisms in gearshift procedure.The device is made up of housing, piston, sealing pellet, orifice plug, baffle plate, spring and pressure regulation screw plug etc..It is equipped with housing left part in orifice plug and baffle plate, housing and piston is housed, the side-to-side movement of piston can drives gear shift shifting block to realize gear shift and pluck shelves action.The device can be widely used in the design of the electric-controlled pneumatic type AMT gear-shifting actuating mechanisms of various vehicles.
Description
Technical field
The invention belongs to automatic gear-box technical field, the electric-controlled pneumatic type for being related to mechanical automatic gearbox (AMT) is changed
Gear mechanism berth-changing strength controls the device buffered with gear shift.The present invention is performed suitable for various electric-controlled pneumatic type AMT compressed-air shifting
In mechanism design.
Background technology
With the development of auto industry, mechanical automatic gearbox (AMT) turns into current China's gearbox automatic technology
During the important directions of advance, the automatic improving of the especially domestic manual transmission largely equipped on heavy load truck,
Play very important effect.
Automatic speed changer for machine be on the basis of traditional fixed shaft transmission and clutch, application electric technology and from
Dynamic speed change is theoretical, with electronic control unit (TCU) for core, controls the separation of clutch and engagement, choosing to change by execution system
Gear operation and the regulation of engine throttle, to realize the automatic manipulation of starting, gearshift.
Electric-controlled pneumatic type AMT has obtained increasing attention, domestic main traction engine by the low advantage of its cost
Manufacturer is all being directed to pneumatic AMT research and development and application.But it is due to the compressibility of gas and the original of cost control
Cause, present main flow producer is all selecting switch valve as kickdown valve is selected, because switch valve only has two kinds of operating modes of open and close, nothing
Pressure and speed are adjusted method, cause pneumatic AMT to there is shifting shock all the time big, and noise is big and the synchromesh unit life-span
Low critical defect, the serious high volume applications for limiting pneumatic AMT.
The content of the invention
Present invention solves the technical problem that being to provide the dress that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift
Put, gear shifting force control and gear shift buffering of the electric-controlled pneumatic type AMT gear-shifting actuating mechanisms in gearshift procedure can be realized.Can be extensive
Applied to various vehicles electric-controlled pneumatic type AMT gear-shifting actuating mechanisms design in.
The technical scheme is that：A kind of pneumatic AMT shifters berth-changing strength control and gear shift buffer unit, its feature
It is, the device is made up of housing, piston, sealing pellet, orifice plug, baffle plate, pressure regulation screw plug and spring etc.；Fill and live in housing
Plug, has a stepped hole in piston, installation pressure regulation screw plug, the bullet successively from left to right positioned at the macropore in left side in the piston step hole
Spring, sealing pellet, the inner left wall of macropore have screw thread to be used to install pressure regulation screw plug；The aperture positioned at right side in piston step hole is made
For steam vent E；A bleeder port F is opened on the macropore inwall in piston step hole, for connecting piston step hole and enclosure interior space；
Steam vent D is located in housing sidewall, and when the side wall of piston moves to the location of steam vent D to the left, piston side wall can
Cover steam vent D；A bleeder port A is disposed with the end wall of housing, bleeder port A is a stepped bore, the right-hand member shape of stepped bore
Into a discouraged space C, orifice plug and baffle plate are installed successively in the space C that loses heart, orifice plug can be in baffle plate and bleeder port A left end platforms
Side-to-side movement in cavity between rank；There is a through hole B at orifice plug center.
The solution have the advantages that：
The device of the present invention is made up of housing, piston, sealing pellet, spring and adjustment screw plug etc..Can be synchronous in gearshift
During ensure required maximum gear shifting force by sealing the open and close of pellet, overcome the excessive gearshift brought of gear shifting force
Synchronizer is damaged, while by the configuration for hole site of losing heart on housing, impact and gearshift when reduction gear shift is synchronous to synchronizer
To the impact of gear shift sliding sleeve during completion.
The pneumatic AMT shifters berth-changing strength control of the present invention is simple with gear shift buffer unit principle, and compact conformation can be square
Realizing just is buffered during pneumatic AMT gearshifts to the control and gear shift of berth-changing strength.The device overcomes pneumatic AMT can not be to gear shifting force
Control and the defect that can not realize gear shift buffering, can greatly improve gearbox shifting synchronizer, synchronous ring, sliding sleeve and gear shift shifting block
Life-span.The device can be widely used in various pneumatic AMT system design.
The present invention is by the structure design to gear shifting cylinder, and the control and gear shift for realizing shifter berth-changing strength are buffered,
An effective solution is provided from engineering actual angle for pneumatic AMT shift mechanism designs.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram that pneumatic AMT shifters berth-changing strength controls to buffer with gear shift；
Fig. 2 is Fig. 1 partial enlarged drawing.
Wherein, the bullet of 6. pressure regulation screw plug of the piston 3. of 1. housing 2. sealing pellet 4. orifice plug, 5. baffle plate 7.
Spring.
Embodiment
The pneumatic AMT shifters berth-changing strength control of the present invention is with gear shift buffer unit by housing 1, piston 2, sealing pellet
3rd, orifice plug 4, baffle plate 5, pressure regulation screw plug 6 and spring 7 etc. are constituted, as shown in figure 1, being equipped with piston 2, the left and right of piston in housing 1
Motion can drive gear shift shifting block to realize gear shift and pluck shelves action.Piston 2 is to have a stepped hole, piston step in cylinder, piston 2
Pressure regulation screw plug 6, spring 7, sealing pellet 3, the inner left wall of macropore are installed in hole successively from left to right in the macropore in left side
There is screw thread to be used to pressure regulation screw plug 6 be installed；The aperture positioned at right side in piston step hole is as steam vent E, and piston is left in housing
Right motion；A bleeder port F is opened on the inwall in piston step hole, for connecting piston step hole and enclosure interior space；Steam vent D
On the side wall of housing 1, when piston side wall moves to the location of steam vent D to the left, piston can cover steam vent D,
Piston enters buffer stage.
As shown in Fig. 2 being disposed with a bleeder port A on the end wall of housing, bleeder port A is the hole of a stepped bore, i.e. left end
Diameter is small, and the diameter in right-hand member hole is big, and right-hand member hole forms in a discouraged space C, the space C that loses heart and installs orifice plug 4 and baffle plate successively
5, side-to-side movement in the cavity that orifice plug 4 can be between baffle plate 5 and bleeder port A left end steps；There is a through hole at the center of orifice plug 4
There is passage on B, baffle plate 5.
During piston to dextrad left movement, orifice plug 4 built-in the bleeder port A of left end is under the promotion of intracavitary air pressure, motion
Onto bleeder port A left end ladders, most of bleeder port is closed, speed of losing heart reduction.
When right-hand member of the piston movement in steam vent D, bleeder port A and steam vent D lose heart simultaneously, and piston movement speed is fast,
When piston portion covers 1 side wall upper air-vent D of housing, left end bleeder port A and right-hand member steam vent D parts are lost heart simultaneously, piston
Movement velocity is reduced, and can so reduce impact during gear shift synchronization, when piston all covers 1 side wall upper air-vent D of housing, only
There is left end bleeder port A losing heart, piston movement speed is very low, can so reduce the impact to gear shift sliding sleeve.
Pressure regulation screw plug 6, spring 7 and sealing pellet 3 are sequentially arranged from left to right in internal piston, it is smaller in gear shifting force
When, under spring force, the steam vent E of closed piston right-hand member, when berth-changing strength is more than setting value, seals bullet to sealing pellet
Son is pushed to left end, and the steam vent E of piston right-hand member is communicated with the bleeder port F in the middle part of piston, gear shifting force reduction.By adjusting pressure regulation
The predeterminable maximum gear shifting force of screw plug.
This pneumatic AMT shifters berth-changing strength control is realized as follows with gear shift buffer unit function：
A) realization of berth-changing strength control
Gear shift gas pressure acts on the right-hand member of piston 2 when gear shift works, and makes piston 2 in housing 1 to left movement, if
Gear shift simultaneous force is more than setting value (being produced by spring force), and the pressure of the right-hand member of piston 2 will be too high, and air pressure is pushed away by steam vent E
The compression spring 7 of dynamic sealing pellet 3 is communicated to left movement, steam vent E with bleeder port F, and gas is passed through into steam vent D and bleeder port A
Exclude, the pressure reduction of the right-hand member of piston 2.When the pressure drop of the right-hand member of piston 2 is low to less than gear shift simultaneous force setting value, bullet is sealed
Son 3 is moved right in the presence of spring 7, cut-out steam vent E and bleeder port F connection, and steam vent E is closed.
B) realization of gear shift buffering
When gear shift works, gear shift gas pressure acts on the right-hand member of piston 2, makes piston 2 in housing 1 to left movement, living
Plug 2 compresses left end gas and produces pressure, and orifice plug 4 moves to discouraged space C left end, will let out under the promotion of intracavitary air pressure
Stomata A cascaded surface is largely closed, and only retains the central through hole B of orifice plug 4 discouraged area.When piston movement is in steam vent
During D right-hand member, steam vent D and bleeder port A, lose heart simultaneously, piston movement speed is fast.It is synchronous that gear shift sliding sleeve will move to gearshift
During device, steam vent D position is moved in piston 2, part overlaid steam vent D, bleeder port A and portion discharge hole D lose heart simultaneously,
The flow that loses heart reduces, piston movement speed reduction, can so reduce impact during gear shift synchronization.Piston 2 continues complete to left movement
When portion covers steam vent D, only bleeder port A is losing heart, and piston movement speed is very low, can so reduce and gear shift sliding sleeve is rushed
Hit.
When plucking shelves work, the left end that grade gas pressure acts on orifice plug 4 by bleeder port A is plucked, orifice plug 4 is promoted to the right
The position of baffle plate 5 is moved to, bleeder port A is fully open, gas enters a left side for the inner carrier 2 of housing 1 quickly through discouraged space C
End, promotes piston quickly to move right, when piston 2 moves to bleeder port D right-hand members, speed further increases, and quickly finishes
Shelves action is plucked, shift time is reduced.
Claims (1)
1. the device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift, it is characterised in that the device is main by shell
Body (1), piston (2), sealing pellet (3), orifice plug (4), baffle plate (5), pressure regulation screw plug (6) and spring (7) composition；Housing (1)
Middle dress piston (2), have a stepped hole in piston (2), and the piston step hole is pacified successively from left to right in the macropore in left side
Pressure screw plug (6), spring (7), sealing pellet (3) are debug, the inner left wall of macropore has screw thread to be used to install pressure regulation screw plug (6)；It is living
The aperture positioned at right side of plug stepped hole is used as steam vent E；A bleeder port F is opened on the macropore inwall in piston step hole, for even
Logical piston step hole and enclosure interior space；Steam vent D is located on the wall of housing (1) side, when the side wall row of moving to the left of piston
During the location of stomata D, piston side wall can cover steam vent D；A bleeder port A, bleeder port A are disposed with the end wall of housing
For a stepped bore, the right-hand member of stepped bore is formed in a discouraged space C, the space C that loses heart installs orifice plug (4) and baffle plate successively
(5) side-to-side movement in the cavity that, orifice plug (4) can be between baffle plate (5) and bleeder port A left end steps；Orifice plug (4) center
There is a through hole B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310265135.6A CN103322187B (en) | 2013-06-27 | 2013-06-27 | The device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310265135.6A CN103322187B (en) | 2013-06-27 | 2013-06-27 | The device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103322187A CN103322187A (en) | 2013-09-25 |
| CN103322187B true CN103322187B (en) | 2017-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310265135.6A Expired - Fee Related CN103322187B (en) | 2013-06-27 | 2013-06-27 | The device that a kind of pneumatic AMT shifters berth-changing strength control is buffered with gear shift |
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| Country | Link |
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| CN (1) | CN103322187B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882807B (en) * | 2017-10-25 | 2024-06-11 | 中国第一汽车股份有限公司 | Synchronizer gear shifting cylinder and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182840A (en) * | 1996-01-29 | 1998-05-27 | 洪时伟 | Friction clutch and technological design |
| CN1274809A (en) * | 1999-05-19 | 2000-11-29 | 欧阳抗美 | Combined buffer valve |
| EP1614937A2 (en) * | 2004-07-08 | 2006-01-11 | Hoerbiger Automatisierungstechnik Holding GmbH | Gear shifting device for a vehicle transmission and valve assembly therefore |
| JP2012007675A (en) * | 2010-06-24 | 2012-01-12 | Kanzaki Kokyukoki Manufacturing Co Ltd | Hydraulic continuously-variable transmission |
| CN202469070U (en) * | 2012-02-29 | 2012-10-03 | 盐城市步高汽配制造有限公司 | Pneumatic valve for gear shifting of medium and heavy-duty truck |
| CN202531817U (en) * | 2012-04-11 | 2012-11-14 | 浙江海宏液压科技股份有限公司 | Buffer device of forklift control shift valve |
| CN202790487U (en) * | 2012-08-31 | 2013-03-13 | 东风汽车公司 | Gear selection and shift actuating mechanism for automated mechanical transmission |
-
2013
- 2013-06-27 CN CN201310265135.6A patent/CN103322187B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182840A (en) * | 1996-01-29 | 1998-05-27 | 洪时伟 | Friction clutch and technological design |
| CN1274809A (en) * | 1999-05-19 | 2000-11-29 | 欧阳抗美 | Combined buffer valve |
| EP1614937A2 (en) * | 2004-07-08 | 2006-01-11 | Hoerbiger Automatisierungstechnik Holding GmbH | Gear shifting device for a vehicle transmission and valve assembly therefore |
| JP2012007675A (en) * | 2010-06-24 | 2012-01-12 | Kanzaki Kokyukoki Manufacturing Co Ltd | Hydraulic continuously-variable transmission |
| CN202469070U (en) * | 2012-02-29 | 2012-10-03 | 盐城市步高汽配制造有限公司 | Pneumatic valve for gear shifting of medium and heavy-duty truck |
| CN202531817U (en) * | 2012-04-11 | 2012-11-14 | 浙江海宏液压科技股份有限公司 | Buffer device of forklift control shift valve |
| CN202790487U (en) * | 2012-08-31 | 2013-03-13 | 东风汽车公司 | Gear selection and shift actuating mechanism for automated mechanical transmission |
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| Publication number | Publication date |
|---|---|
| CN103322187A (en) | 2013-09-25 |
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