CN202646609U - Three-position driving gear for automotive transmissions - Google Patents
Three-position driving gear for automotive transmissions Download PDFInfo
- Publication number
- CN202646609U CN202646609U CN 201220319634 CN201220319634U CN202646609U CN 202646609 U CN202646609 U CN 202646609U CN 201220319634 CN201220319634 CN 201220319634 CN 201220319634 U CN201220319634 U CN 201220319634U CN 202646609 U CN202646609 U CN 202646609U
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- gear
- tooth
- driving gear
- transmission
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 43
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model provides a three-position driving gear for automotive transmissions, which belongs to the technical field of automotive parts. The three-position driving gear solves the problem that in the practical application of the conventional gear, the engagement sleeve of the synchronizer is often excessively fed, as a result, the outer teeth are rubbed by the engagement sleeve, and the engagement sleeve even directly enters the area of the outer teeth to cause the damage of the engagement sleeve and the outer teeth. The three-position driving gear comprises a gear body, wherein the periphery of the gear body is provided with outer teeth and engagement teeth, and a check ring is arranged between the outer teeth and the engagement teeth. The check ring can prevent the engagement sleeve of the synchronizer from being excessively fed under the push of acting force so as not to cause the abrasion between the engagement sleeve and the outer teeth, consequently, potential safety hazards existing in the three-position driving gear are eliminated, and the service life of the three-position driving gear is prolonged.
Description
Technical field
The utility model belongs to technical field of automobile parts, particularly a kind of active three-range transmission of automotive transmission.
Background technique
Automotive transmission is the speed change gear that a cover is used for the actual travel speed of coordination engine speed and wheel, can bring into play like this optimum performance of motor.In vehicle traveling process, speed changer passes to live axle to the power of motor with suitable moment of torsion and rotating speed by the transforming gear of gear transmission and speed changing structure, to adapt to automobile requirement to tractive force and travelling speed under different road conditions.
Generally comprise input shaft, output shaft, jack shaft on the speed changer, be set in gear and synchronizer on input shaft, jack shaft and the output shaft.The shaft axis of input shaft and output shaft is on same straight line but be not connected to each other the shaft axis of jack shaft and the axis parallel of input shaft.Be arranged with the driven gear of each gear at input shaft; Movable sheath is provided with the driving gear of each gear on output shaft; Synchronizer is installed on the output shaft and between driving gear, synchronizer under the effect of shift fork can with adjacent gear in conjunction with tooth in conjunction with or separate.The clutch connecting engine is passed in the one end connection of input shaft, be set in the engagement of gear on the input shaft and the gear on the jack shaft and with the power transmission of motor to jack shaft, gear on the jack shaft and the driving gear that is set on the output shaft mesh, when needs are selected which gear of which speed changer, stir shift fork with the driving gear combination of synchronizer and corresponding gear, the driving gear that is movably set on the output shaft given transmission of power by gear on the jack shaft, driving gear is given transmission of power on the synchronizer that fixes with output shaft, synchronizer drives output shaft rotation, then output shaft with transmission of power to live axle.So just finished power by the whole process of starting to pass to output shaft.
The active three-range transmission general activity of existing automotive transmission is set on the output shaft.Generally comprise the gear body as joining the active three-range transmission that magnificent auto parts machinery factory produces and sell by the Yuhuan county on the market, the outer circumferential face of gear body have for the external gear of the engagement of the gear on jack shaft and transferring power and be used for being combined with synchronizer in conjunction with tooth, the gear body closely has for the friction frustum that cooperates with synchronizer in conjunction with the end face of tooth.The transmission that the driving gear of this structure can be finished power can be combined preferably with synchronizer simultaneously.Synchronizer generally comprises clutch collar and synchronous lock ring, when synchronous lock ring inner conical surface with after friction frustum male cone (strobilus masculinus) contacts, effect lower gear rotating speed in friction torque reduces rapidly (or rising) to equating with synchronous lock ring rotating speed, both synchronous rotaries, gear is zero with respect to the rotating speed of synchronous lock ring, thereby also simultaneously disappearance of moment of inertia, at this moment under the promotion of active force, clutch collar engages with the synchrolock annular gear in the clear, and further with finish gearshift procedure in conjunction with indented joint.And this gear tends to occur cause combined cover and the outer gear teeth to rub owing to the excessive feeding of the combined cover of synchronizer in practical application, even combined cover directly enters outer gear teeth zone, cause the damage of combined cover and the outer gear teeth, so just brought danger to speed changer.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of active three-range transmission of automotive transmission, and this gear can prevent that the combined cover of synchronizer from causing wearing and tearing with the outer tooth contact of active three-range transmission.
The purpose of this utility model can realize by following technical proposal: a kind of active three-range transmission of automotive transmission, it is movably set on the output shaft, described gear comprise have on gear body, the gear body outer peripheral surface for engagement and the transmission outer gear teeth of power and tool on gear body outer peripheral surface in conjunction with tooth, closely has the friction frustum in conjunction with the end face of tooth at the gear body, it is characterized in that the described outer gear teeth and in conjunction with having back-up ring between the tooth.
Back-up ring is located at the outer gear teeth and in conjunction with between the tooth, the clutch collar that back-up ring prevents synchronizer is excessively feeding and cause clutch collar and the outer gear teeth to cause wearing and tearing under the promotion of active force, eliminate the initiatively potential safety hazard of three-range transmission existence, prolonged the initiatively working life of three-range transmission.
In the active three-range transmission of above-mentioned automotive transmission, described back-up ring ringwise, the outside diameter of back-up ring is greater than the tooth top diameter of a circle in conjunction with tooth.
In the time of the excessive feeding of clutch collar, back-up ring stops clutch collar, back-up ring ringwise, the clutch collar barrier force that is subject to back-up ring everywhere evenly distributes like this, has prolonged the working life of back-up ring.
In the active three-range transmission of above-mentioned automotive transmission, have annular boss with the axis hole coaxial inner conductor on the described gear body with on the end face of friction frustum homonymy, described annular boss outside diameter is less than the interior circular diameter of friction frustum.
Boss increases axis hole along inner circle wall vertically and the area of contact between the axle, can increase like this master gear at slide rotational stabilization when rotating of axle, avoids driving wheel to swing back and forth towards axial direction in rotation, prolongs the working life of driving wheel.
Compared with prior art, the active three-range transmission of a kind of automotive transmission of the utility model has the following advantages:
1, active three-range transmission of the present utility model comprises the gear body, have the outer gear teeth on the outer circumferential face of gear body and in conjunction with tooth, the gear teeth and in conjunction with having back-up ring between the tooth outside, the clutch collar that back-up ring prevents synchronizer is excessively feeding and cause clutch collar and the outer gear teeth to cause wearing and tearing under the promotion of active force, eliminate the initiatively potential safety hazard of three-range transmission existence, prolonged the initiatively working life of three-range transmission.
2, has annular boss with the axis hole coaxial inner conductor on the described gear body with on the end face of friction frustum homonymy, boss increases axis hole along inner circle wall vertically and the area of contact between the axle, avoid driving wheel in rotation, to swing back and forth towards axial direction, prolong the working life of driving wheel.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1, body; 2, back-up ring; 3, the outer gear teeth.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
See also Fig. 1, a kind of active three-range transmission of automotive transmission, it is movably set on the output shaft, described gear comprise have on gear body 1, gear body 1 outer peripheral surface for engagement and the transmission outer gear teeth 3 of power and tool on gear body 1 outer peripheral surface in conjunction with tooth, closely has the friction frustum in conjunction with the end face of tooth at gear body 1, the described outer gear teeth 3 and in conjunction with having back-up ring 2 between the tooth.Described back-up ring 2 ringwise, the outside diameter of back-up ring 2 is greater than the tooth top diameter of a circle in conjunction with tooth.Have annular boss with the axis hole coaxial inner conductor on the described gear body 1 with on the end face of friction frustum homonymy, described annular boss outside diameter is less than the interior circular diameter of friction frustum.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (3)
1. the active three-range transmission of an automotive transmission, it is movably set on the output shaft, described gear comprise have on gear body (1), gear body (1) outer peripheral surface for engagement and the transmission outer gear teeth (3) of power and tool on gear body (1) outer peripheral surface in conjunction with tooth, closely has the friction frustum in conjunction with the end face of tooth at gear body (1), it is characterized in that the described outer gear teeth (3) and in conjunction with having back-up ring (2) between the tooth.
2. the active three-range transmission of automotive transmission according to claim 1 is characterized in that, described back-up ring (2) ringwise, the outside diameter of back-up ring (2) is greater than the tooth top diameter of a circle in conjunction with tooth.
3. the active three-range transmission of automotive transmission according to claim 1, it is characterized in that, have the annular boss with the axis hole coaxial inner conductor on the upper end face with friction frustum homonymy of described gear body (1), described annular boss outside diameter is less than the interior circular diameter of friction frustum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319634 CN202646609U (en) | 2012-06-30 | 2012-06-30 | Three-position driving gear for automotive transmissions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319634 CN202646609U (en) | 2012-06-30 | 2012-06-30 | Three-position driving gear for automotive transmissions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646609U true CN202646609U (en) | 2013-01-02 |
Family
ID=47415719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319634 Expired - Fee Related CN202646609U (en) | 2012-06-30 | 2012-06-30 | Three-position driving gear for automotive transmissions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646609U (en) |
-
2012
- 2012-06-30 CN CN 201220319634 patent/CN202646609U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |