CN103968057A - Automatic transmission gear shifting mechanism - Google Patents
Automatic transmission gear shifting mechanism Download PDFInfo
- Publication number
- CN103968057A CN103968057A CN201410179549.1A CN201410179549A CN103968057A CN 103968057 A CN103968057 A CN 103968057A CN 201410179549 A CN201410179549 A CN 201410179549A CN 103968057 A CN103968057 A CN 103968057A
- Authority
- CN
- China
- Prior art keywords
- gear
- gear level
- electromagnet
- automatic transmission
- shift block
- Prior art date
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 238000006073 displacement reaction Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0217—Selector apparatus with electric switches or sensors not for gear or range selection, e.g. for controlling auxiliary devices
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
-
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0208—Selector apparatus with means for suppression of vibrations or reduction of noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention provides an automatic transmission gear shifting mechanism, and belongs to the technical field of automobiles. According to the technical scheme, the automatic transmission gear shifting mechanism comprises a PLC, a gear shifting block and at least two gear levers with shifting forks. The gear shifting block is located on the upper portions of the gear levers and fixedly connected with a transmission shell, each gear lever is provided with two electromagnets and a displacement sensor, the two electromagnets on the same gear lever are located on the two sides of the gear shifting block respectively, a magnet yoke and an electromagnetic coil of each electromagnet are fixed to the corresponding gear lever, an armature of each electromagnet is fixed to the gear shifting block, a buffer device is arranged between the gear shifting block and each gear lever, and the output end of each displacement sensor and the control ends of the electromagnets of each gear lever are connected with different I/O ports of the PLC. The electromagnets are utilized to drive the gear levers to move, the problems that a traditional automatic transmission gear shifting mechanism leaks easily and is sensitive to changes of oil temperature are avoided thoroughly, the buffer devices and a self-locking mechanism are used for improving positioning precision of the gear levers, and reliable operation of the gear shifting mechanism is guaranteed.
Description
Technical field
The present invention relates to the electric control mechanical type automatic speed variator gearshift that a kind of reliability is high and be convenient to keep in repair, belong to automobile technical field.
Background technique
Existing electric control mechanical type automatic speed variator is realized the switching of gear by the fluid power assisting agency of shifting gears, its gearshift comprises gear level, selector fork, motor (stepping motor and direct current motor), solenoid valve (general solenoid valve and high-speed electromagnetic valve), oil hydraulic cylinder, sensor and hydraulic tubing, the signal of electronic control unit receiving sensor collection solenoid valve, oil hydraulic cylinder being controlled according to best schedule in shift process, and then utilize hydraulic driving gear level to move, realize gearshift.This gearshift has the following disadvantages:
1, gearshift be take liquid as working medium, is easy to reveal, thereby speed changer is caused to harmful effect in working procedure.
2, hydraulic transmission process is more responsive to the variation of oil temperature, and for automotive transmission, and its oil temperature changes relatively more frequent and amplitude of variation greatly, has had a strong impact on the stability of gearshift.
3, Hydraulic Power Transmission System complex structure, requirement on machining accuracy is higher, and the diagnosis of its fault and maintenance are all more difficult.
Summary of the invention
The object of the invention is to the drawback for prior art, provide a kind of simple in structure, be convenient to maintenance, the reliable automatic transmission shift of working stability mechanism.
Problem of the present invention realizes with following technical proposals:
A kind of automatic transmission shift mechanism, formation comprises PLC, shift block and at least two gear levels with selector fork, described shift block is positioned at the top of gear level and is fixedly connected with case of transmission, on each gear level, be provided with two electromagnet and a displacement transducer, two electromagnet on same gear level lay respectively at the both sides of shift block, the yoke of each electromagnet and electromagnetic coil are fixed on corresponding gear level, its armature is fixed in shift block, between shift block and each gear level, be provided with damping device, different I/O port of the control termination PLC of the output terminal of displacement transducer and electromagnet.
Above-mentioned automatic transmission shift mechanism, described damping device comprises damp tube, sealed at both ends cylinder and is arranged on the piston of cylinder interior, described cylinder is parallel with corresponding gear level and be fixed in the yoke of an electromagnet on gear level, its inner piston is connected with shift block by piston rod, and two chambeies that cylinder is divided into by piston are communicated with by damp tube.
Above-mentioned automatic transmission shift mechanism, in formation, also comprise the self-locking mechanism corresponding with each gear level, described self-locking mechanism comprises steel ball and spring, the upper end of described spring is positioned at the vertical blind hole of shift block bottom, lower end is pressed in steel ball top on corresponding gear level, is provided with the locating slot corresponding with steel ball on gear level.
Above-mentioned automatic transmission shift mechanism, described displacement transducer adopts laser displacement sensor, and it is fixed in the yoke of an electromagnet of gear level, be positioned at the below of electromagnet corresponding with shift block.
Above-mentioned automatic transmission shift mechanism, is filled with antirust solution in the damp tube of described damping device and cylinder.
Above-mentioned automatic transmission shift mechanism, the quantity of the locating slot on each gear level is three.
The present invention utilizes solenoid actuated gear level to move, thoroughly avoided traditional automatic transmission shift mechanism easily to reveal and to the variation of oil temperature sensitive issue comparatively, damping device and self-locking mechanism, for improving the positioning precision of gear level, guarantee gearshift reliable operation.In addition, the present invention also has simple in structure, fault diagnosis and the advantage such as easy to maintenance.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of gear level;
Fig. 3 is the sectional view of this gearshift;
Fig. 4 is the gear layout plan of five speed transmissions;
Fig. 5 is the electrical schematic diagram of control system.
In figure, each label is: 1, shift block, 2, steel ball, 3, armature, 4, electromagnet, 5, the first gear level, 6, the second gear level, 7, the 3rd gear level, 8, selector fork, 9, locating slot, 10, displacement transducer, 11, spring, 12, damping device, 13, cylinder, 14, damp tube, 15, piston, PLC, programmable controller, KM1, one gear contactor coil, KM2, two gear contactor coils, KM3, three gear contactor coils, KM4, four gear contactor coils, KM5, five gear contactor coils, KM6, contactor coil reverses gear, L1, the first laser displacement sensor, L2, the second laser displacement sensor, L3, the 3rd laser displacement sensor.
Embodiment
Referring to Fig. 1-Fig. 5, the present invention is mainly by selector fork 8, gear level, electromagnet 4, shift block 1, PLC, self-locking mechanism, displacement transducer 10 and damping device 12 form, shift block 1 is fixed on case of transmission, in shift block 1, have rectangle groove and cylindrical groove, be respectively used to install PLC controller, armature 3 and self-locking mechanism (combination of steel ball 2 and spring 11), the cylinder 13 of damping device 12 is fixed in the yoke of electromagnet 4, the guide rod of cylinder 13 internal pistons 15 is fixed in shift block 1, a damping device 12 is installed on every gear level, on gear level, have three measure-alike uniformly-spaced locating slots of (spacing is N), the yoke of fixed electromagnet 4 on gear level, electromagnetic coil and displacement transducer 10 are housed in yoke, distance between yoke and shift block 1 is L, displacement transducer is used for gathering distance for L-N, tri-kinds of signals of L and L+N, every gear level can be realized the conversion between two gears and a neutral position.
Yoke on gear level is corresponding with the armature 3 in shift block 1, electromagnetic coil in yoke produces magnetic attraction armature 3 while switching on, yoke drives gear level and selector fork to move that (size of magnetic force can be controlled by electric current [strength under the effect of magnetic force, the magnetic force that electromagnet produces is enough to drive gear level fast moving), simultaneous displacement sensor is followed the tracks of and is gathered mobile displacement, realizes gearshift; Displacement transducer is laser displacement sensor, and the working principle of its auxiliary gearshift is: shift block 1 maintains static, and yoke and displacement transducer are followed gear level and moved left and right, and when speed changer does not need to shift gears, the distance between yoke and shift block 1 is L; When needs are changed to other gear by neutral, (same gear level), changes into L-N or L+N by the distance between yoke and shift block 1; When needs are changed to neutral by other gear, by the distance between yoke and shift block 1 for reverting to L.
Damping device 12 comprises damp tube 14, piston 15, cylinder 13, piston 15 is fixed in shift block 1 by piston rod, cylinder 13 is fixed in yoke, with gear level, move, piston 15 is divided into former and later two chambeies by cylinder 13, damp tube 14 is slender pipe, and its two ends connect respectively the front and back chamber of cylinder 13, in the chamber, front and back of cylinder 13, fills antirust solution body; During gearshift, gear level drives piston 15 to move, piston 15 is pressed onto another chamber by liquid from a chamber, under the effect of elongated damp tube, the travelling speed of antirust liquid has been received restriction, and then can slow down the travelling speed of piston rod, the gear level hypervelocity that buffering causes because electromagnetic force is excessive is mobile, simultaneously, after electromagnetic force disappears, gear level can stop rapidly moving, and guarantees stationarity and the accuracy of shift process.
When speed changer does not need to shift gears, electromagnet does not produce magnetic force, and the steel ball 2 in self-locking mechanism is stuck in the locating slot in neutral position on gear level under the effect of spring 11, the movement of restriction gear level; When needs are shifted gears, steel ball 2 Compress Springs 11 under the effect of magnetic force, make it to leave locating slot, at gear level, move after required displacement, magnetic force disappears, steel ball 2 is stuck in the locating slot of left end on gear level or right end position under the effect of spring 11, prevents side set or falls the phenomenon of gear, realizes accurately gearshift.
Take five speed transmissions as example (Figure 4 shows that gear layout plan), when speed changer changes I gear by neutral, electronic control unit sends shifting commands to PLC controller, PLC controller is controlled the first gear level 5 left end electromagnet energisings, electromagnet moment generation magnetic force, armature drives the first gear level 5 steadily to move to the right under the effect of magnetic buffer device 12, when the first gear level 5 moves a locating slot interval (N), the distance that displacement transducer on it collects between yoke and shift block 1 is L-N, displacement transducer by this signal feed back to PLC controller, PLC controller is controlled electromagnet power-off, magnetic force pop-off, steel ball 2 enters the locating slot of the first gear level 5 left ends, fix the position of the first gear level 5, realization changes to I gear, when speed changer need to change to II gear by I gear, PLC controller is controlled the first gear level 5 right-hand member electromagnet energisings, the first gear level 5 steadily moves left, when the first gear level 5 is moved to the left two locating slot spacing (2N), displacement transducer is by signal feed back to PLC controller, and PLC controls electromagnet power-off, magnetic force pop-off, steel ball 2 enters the locating slot of the first gear level 5 right-hand members, and fixedly the position of gear level, realizes and change to II gear, when speed changer need to change to III gear, PLC controls the first gear level 5 and gets back to neutral position, according to the control mode that is changed to I gear by neutral, the second gear level 6 is controlled simultaneously, realized and change to III gear, the mode of the implementation of other gear when realizing I, II, III and keep off is identical, II gear changes in the process of III gear, and the movement of the first gear level 5 and the second gear level 6 can be carried out simultaneously, and whole shift process saves the block selecting time.
Claims (6)
1.Yi Zhong automatic transmission shift mechanism, it is characterized in that, it comprises PLC, shift block (1) and at least two gear levels with selector fork (8), described shift block (1) is positioned at the top of gear level and is fixedly connected with case of transmission, on each gear level, be provided with two electromagnet (4) and a displacement transducer (10), two electromagnet (4) on same gear level lay respectively at the both sides of shift block (1), the yoke of each electromagnet (4) and electromagnetic coil are fixed on corresponding gear level, its armature (3) is fixed in shift block (1), different I/O port of the control termination PLC of the output terminal of displacement transducer (10) and electromagnet (4).
2. a kind of automatic transmission shift according to claim 1 mechanism, it is characterized in that, between shift block (1) and each gear level, set up damping device (12), described damping device (12) comprises damp tube (14), sealed at both ends cylinder (13) and be arranged on the inner piston (15) of cylinder (13), described cylinder (13) is parallel with corresponding gear level and be fixed in the yoke of the electromagnet (4) on gear level, its inner piston (15) is connected with shift block (1) by piston rod, two chambeies that cylinder (13) is divided into by piston (15) are communicated with by damp tube (14).
3. a kind of automatic transmission shift according to claim 1 and 2 mechanism, it is characterized in that, in formation, also comprise the self-locking mechanism corresponding with each gear level, described self-locking mechanism comprises steel ball (2) and spring (11), the upper end of described spring (11) is positioned at the vertical blind hole of shift block (1) bottom, lower end is pressed in steel ball (2) top on corresponding gear level, is provided with the locating slot (9) corresponding with steel ball (2) on gear level.
4. a kind of automatic transmission shift according to claim 3 mechanism, it is characterized in that, described displacement transducer (10) adopts laser displacement sensor, and it is fixed in the yoke of an electromagnet (4) of gear level, is positioned at the below of electromagnet (4) corresponding with shift block (1).
5. a kind of automatic transmission shift according to claim 4 mechanism, is characterized in that, in the damp tube (14) of described damping device (12) and cylinder (13), is filled with antirust solution.
6. a kind of automatic transmission shift according to claim 5 mechanism, is characterized in that, the quantity of the locating slot on each gear level (9) is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179549.1A CN103968057B (en) | 2014-04-30 | 2014-04-30 | A kind of automatic transmission shift mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179549.1A CN103968057B (en) | 2014-04-30 | 2014-04-30 | A kind of automatic transmission shift mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968057A true CN103968057A (en) | 2014-08-06 |
| CN103968057B CN103968057B (en) | 2016-06-01 |
Family
ID=51237910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410179549.1A Expired - Fee Related CN103968057B (en) | 2014-04-30 | 2014-04-30 | A kind of automatic transmission shift mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103968057B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504173A (en) * | 2017-08-17 | 2017-12-22 | 江苏大学 | A kind of electromagnetism boosting-type gearshift |
| CN114278725A (en) * | 2022-01-04 | 2022-04-05 | 东风德纳车桥有限公司 | Gear shifting position self-adaptive control method, gear shifting actuating mechanism and gear shifting device |
| CN114396356A (en) * | 2022-01-05 | 2022-04-26 | 中国大唐集团有限公司内蒙古分公司 | Impact-resistant electromagnetic speed change mechanism for yaw motor of wind turbine generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4337163B4 (en) * | 1992-11-05 | 2008-03-13 | Volkswagen Ag | Control device for the automatic and distance dependent circuit of an automatic transmission |
| CN102401116A (en) * | 2011-11-11 | 2012-04-04 | 联合汽车电子有限公司 | Quick gear-shifting mechanism omitting gear selecting process and use method thereof |
| CN202228656U (en) * | 2011-09-23 | 2012-05-23 | 孔凡鲁 | Gear selecting and shifting integrated device for manual transmission |
| CN202451814U (en) * | 2011-11-11 | 2012-09-26 | 联合汽车电子有限公司 | Quick shifting mechanism omitting gear selecting process |
| CN202719121U (en) * | 2012-03-19 | 2013-02-06 | 江苏铃高电动车有限公司 | Electromagnet automatic gear shifting device of electric vehicle |
-
2014
- 2014-04-30 CN CN201410179549.1A patent/CN103968057B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4337163B4 (en) * | 1992-11-05 | 2008-03-13 | Volkswagen Ag | Control device for the automatic and distance dependent circuit of an automatic transmission |
| CN202228656U (en) * | 2011-09-23 | 2012-05-23 | 孔凡鲁 | Gear selecting and shifting integrated device for manual transmission |
| CN102401116A (en) * | 2011-11-11 | 2012-04-04 | 联合汽车电子有限公司 | Quick gear-shifting mechanism omitting gear selecting process and use method thereof |
| CN202451814U (en) * | 2011-11-11 | 2012-09-26 | 联合汽车电子有限公司 | Quick shifting mechanism omitting gear selecting process |
| CN202719121U (en) * | 2012-03-19 | 2013-02-06 | 江苏铃高电动车有限公司 | Electromagnet automatic gear shifting device of electric vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504173A (en) * | 2017-08-17 | 2017-12-22 | 江苏大学 | A kind of electromagnetism boosting-type gearshift |
| CN114278725A (en) * | 2022-01-04 | 2022-04-05 | 东风德纳车桥有限公司 | Gear shifting position self-adaptive control method, gear shifting actuating mechanism and gear shifting device |
| CN114396356A (en) * | 2022-01-05 | 2022-04-26 | 中国大唐集团有限公司内蒙古分公司 | Impact-resistant electromagnetic speed change mechanism for yaw motor of wind turbine generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103968057B (en) | 2016-06-01 |
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Granted publication date: 20160601 |
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