CN102606713A - Gear reversing synchronizing device - Google Patents
Gear reversing synchronizing device Download PDFInfo
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- CN102606713A CN102606713A CN2012100905921A CN201210090592A CN102606713A CN 102606713 A CN102606713 A CN 102606713A CN 2012100905921 A CN2012100905921 A CN 2012100905921A CN 201210090592 A CN201210090592 A CN 201210090592A CN 102606713 A CN102606713 A CN 102606713A
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- sense power
- reverse gear
- radial hole
- gear
- ball
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Abstract
The invention discloses a gear reversing synchronizing device, which relates to the technical field of gear shifting devices of transmissions in motor vehicles and is designed for strengthening smoothness of gear engaging and reversing. The gear reversing synchronizing device comprises a gear shifting shaft and a shifting fork shaft which are adjacently arranged, a gear reversing force sensing block is fixedly arranged on the gear shifting shaft, a radial hole is disposed on the shifting fork shaft, a force sensing ball is arranged in the radial hole, a partial spherical surface of the force sensing ball is positioned on the outside of the radial hole, and the gear reversing force sensing block contacts with the force sensing ball and drives the shifting fork shaft to move via the force sensing ball in a gear engaging and reversing process. The gear reversing synchronizing device is applicable to motor vehicles.
Description
Technical field
The present invention relates to the gearshift of speed changer in the motor vehicle, relate in particular to a kind of reverse gear synchronizer.
Background technique
Now auto vendor produces manually keeps off a car economical and practically, and beautiful shape is small and exquisite, is the especially first-selected purchase vehicles of client women of a lot of clients.One of problem that but the comfort level of this manual vehicle special problem of being concerned about that also is client when buying, the smoothness when wherein the smoothness during engage a gear is especially hung reverse gear are clients to be concerned about.
Manually keeping off a car in the past hung reverse gear in the back of bringing to a halt, and driver regular meeting hears that gear beats the sound of tooth, if all be this situation for a long time, the noise of beating tooth that vehicle sends not only influences the mood of driver's driving, and the life-span of vehicle is reduced greatly; Owing to beat tooth, make the driver when hanging reverse gear, feel irregularity, and relatively require great effort, so the reverse gear synchronizer arises at the historic moment in addition.
Be illustrated in figure 1 as a kind of scheme of reverse gear synchronizer in the existing technology, the reverse gear synchronizer in this scheme comprises the reverse gear sense power piece 1 that is fixedly connected with shift shaft 2 and is limited in column sense power pin 9 on the declutch shift shaft 3 etc.When hanging reverse gear, shift shaft 2 drives reverse gear sense power piece 1 and is moved to the left, and reverse gear sense power piece 1 drives declutch shift shaft 3 through the sliding friction with column sense power pin 9 and is moved to the left also pre-hung gear synchronizer.The rotating speed of output gear when this moment, the gear synchronizer can mesh with the reduction idling with the output gear on the output shaft; Thereby reduce the rotating speed of the input gear that meshes with output gear; And then reduce and import the input shaft rotational speed that gear is connected; The rotating speed of the reverse gear input gear that therefore is connected with input shaft also reduces thereupon, makes the impact that produces when hanging reverse gear reduce.
But be the force of sliding friction that produces after said reverse gear sense power piece and the said column sense power pin contacts to the driving force of said declutch shift shaft effect in the existing technology; Because the surface friction drag of sliding friction is bigger; May there be catching phenomenon; Therefore make that the power when hanging reverse gear is bigger, the smoothness that reverses gear is hung in influence.
Summary of the invention
Embodiments of the invention provide a kind of reverse gear synchronizer, can strengthen the smoothness of hanging reverse gear.
For achieving the above object, embodiments of the invention adopt following technological scheme:
A kind of reverse gear synchronizer; The gearshift axle and the declutch shift shaft that comprise adjacent setting are installed with reverse gear sense power piece on the said gearshift axle, said declutch shift shaft is provided with radial hole; Be provided with sense power ball in the said radial hole, it is outside that the spherical calotte of said sense power ball is positioned at said radial hole; When hanging reverse gear, said reverse gear sense power piece contacts with said sense power ball and moves through the moving said declutch shift shaft of said sense power spherical zone.
Wherein, to be positioned at said radial hole outside for fewer than half spherical calotte of said sense power ball.
Be provided with the sense power spring that supports sense power ball in the said radial hole.
Further, be provided with the circular shell that holds said sense power ball in the said radial hole, the inner side surface of said circular shell upper end is provided with the inclined-plane to said circular shell inner inclination.
Wherein, it is inner that said sense power spring is contained in said circular shell; Or said sense power spring is located at said circular shell below.
Further, said radial hole is a through hole, and is equipped with pin along the radial direction of said radial hole in the bottom of said radial hole.
The lower end of said circular shell is provided with step, and said radial hole is the stepped shaft through hole that cooperates with said step.
Further, be provided with positioning seat between said sense power ball and the said sense power spring.
Wherein, the bottom of said positioning seat is provided with groove, and the upper end of said sense power spring is in the said groove.
The reverse gear synchronizer that the embodiment of the invention provides is provided with sense power ball in the radial hole in said declutch shift shaft, it is outside that the spherical calotte of said sense power ball is positioned at said radial hole; When hanging reverse gear; Said reverse gear sense power piece contacts with said sense power ball and through the moving said declutch shift shaft motion of said sense power spherical zone, and its beneficial effect that brings is, at said reverse gear sense power piece with after said sense power ball contacts; Said reverse gear sense power piece continues to move along the axial direction of said declutch shift shaft; Therefore driving said sense power ball does spinning motion, makes said reverse gear sense power piece and said sense power ball produce rolling frictional resistance, thereby drives said declutch shift shaft motion.Compare with sliding-frictional resistance, the sassafras resistance is less because the rolling that said reverse gear sense power piece and said sense power ball produce rubs, and therefore hangs the power that produces when reversing gear and reduces, and has strengthened the smoothness when hanging reverse gear.
Description of drawings
Fig. 1 is the structural representation of a kind of reverse gear synchronizer in the existing technology;
Fig. 2 is the structural representation of embodiment of the invention reverse gear synchronizer;
Fig. 3 is an improvement structural representation embodiment illustrated in fig. 2;
Fig. 4 is an a kind of improved structural representation embodiment illustrated in fig. 3;
Fig. 5 is an another kind of improved structural representation embodiment illustrated in fig. 3;
Fig. 6 is the enlarged diagram of A part among Fig. 5.
Reference character:
1-reverse gear sense power piece, the 2-axle of shifting gears, 3-declutch shift shaft, 30-radial hole, 4-sense power spring, 5-sense power ball, 6-circular shell, 60-step, 61-inclined-plane, 7-pin, 8-positioning seat, 80-groove, 9-column sense power pin
Embodiment
Below in conjunction with accompanying drawing the reverse gear synchronizer that the embodiment of the invention provides is described in detail.
As shown in Figure 2, be a specific embodiment of reverse gear synchronizer of the present invention.The synchronizer of reverse gear described in the present embodiment comprises the gearshift axle 2 and declutch shift shaft 3 of adjacent setting; Be installed with reverse gear sense power piece 1 on the said gearshift axle 2; Said declutch shift shaft 3 is provided with radial hole 30; Be provided with sense power ball 5 in the said radial hole 30, the spherical calotte of said sense power ball 5 is positioned at said radial hole 30 outsides; When hanging reverse gear, said reverse gear sense power piece 1 contacts with said sense power ball 5 and drives said declutch shift shaft 3 motions through said sense power ball 5.
The reverse gear synchronizer that the embodiment of the invention provides is provided with sense power ball 5 in the radial hole 30 in said declutch shift shaft 3, the spherical calotte of said sense power ball 5 is positioned at said radial hole 30 outsides; When hanging reverse gear; Said reverse gear sense power piece 1 contacts with said sense power ball 5 and drives said declutch shift shaft 3 motions through said sense power ball 5, and its beneficial effect that brings is to connect 5 after touch at said reverse gear sense power piece 1 with said sense power ball; Said reverse gear sense power piece 1 continues to move along the axial direction of said declutch shift shaft 3; Therefore driving said sense power ball 5 does spinning motion, makes said reverse gear sense power piece 1 and said sense power ball 5 produce rolling frictional resistance, thereby drives said declutch shift shaft 3 motions.Compare with sliding-frictional resistance, the sassafras resistance is less because the rolling that said reverse gear sense power piece 1 and said sense power ball 5 produce rubs, and therefore hangs the power that produces when reversing gear and reduces, the smoothness when having strengthened the extension reverse gear.
For example; Under state shown in Figure 2; Shift shaft 2 can be moved to the left with reverse gear sense power piece 1 simultaneously; The power of reverse gear sense afterwards piece 1 contact with sense power ball 5 and continues to be moved to the left along the axial direction of declutch shift shaft 3, so reverse gear sense power piece 1 can drive 5 rotations of sense power ball and be moved to the left through sense power ball 5 drive declutch shift shafts 3 simultaneously, can pre-hung gear synchronizer after declutch shift shaft 3 is moved to the left; Thereby input shaft rotational speed reduces when making idling through this gear synchronizer, and then makes the impact that produces when hanging reverse gear reduce.
Need to prove, can make fewer than half spherical calotte of said sense power ball 5 be positioned at said radial hole 30 outsides in embodiments of the present invention, can avoid feeling power ball 5 so preferably and in radial hole 30, scurry out.
As shown in Figure 3, be provided with the sense power spring 4 that supports sense power ball 5 in the said radial hole 30.Because reverse gear sense power piece 1 can bump when contacting with sense power ball 5; And the impact force that this collision brings is relatively large; May damage other associated components such as reverse gear sense power piece 1, sense power ball 5, thus sense power spring 4 be provided with in the lower end of sense power ball 5, when reverse gear sense power piece 1 collides with sense power ball 5; 1 pair of sense of reverse gear sense power piece power ball 5 produces active force straight down and compresses sense power spring 4; Make sense power spring 4 produce certain buffer function, and then reduce the striking force of 1 pair of sense of reverse gear sense power piece power ball 5, reduce damage other associated components such as reverse gear sense power piece 1, sense power balls 5.
Like Fig. 4 or shown in Figure 5, be provided with the circular shell 6 that holds said sense power ball 5 in the said radial hole 30; Can know that by Fig. 6 the inner side surface of said circular shell 6 upper ends is provided with the inclined-plane 61 to said circular shell 6 inner inclination.This is owing to can generation rock in the vehicle driving process; And the driver can drive declutch shift shaft 3 at the replacing gear and move back and forth; These all might cause feeling power ball 5 generation plaies and in radial hole 30, scurry out; When active force that sense power spring 4 produces straight up sense power ball 5 owing to be compressed, the inclined-plane 61 on the circular shell 6 can produce downward clamping force to sense power ball 5, and these two power interact and guaranteed that sense power ball 5 is clamped in the circular shell 6 and play can take place.
As shown in Figure 4; Said sense power spring 4 can be contained in said circular shell 6 inside; Feel the inside that power spring 4 and sense power ball 5 all are contained in circular shell 6 this moment, because circular shell 6 is parts independently, so can be so that the structure of circular shell 6 is improved; To adapt to different application requirements, for example the inclined-plane 61 to said circular shell 6 inner inclination can be set on the inner side surface of circular shell 6 upper ends.
Perhaps; As shown in Figure 5; Said sense power spring 4 can also be located at said circular shell 6 belows; The below of circular shell 6 will reserve bigger space sense power spring 4 is successfully packed in the radial hole 30 like this, can be because of the inner little and feasible sense power of the size spring 4 of circular shell 6 produce distortion during being installed to circular shell 6 time, has guaranteed to feel the smoothness of power spring 4 in the vertical direction movement process.
Can know that according to Fig. 4 or Fig. 5 radial hole described in the embodiment of the invention 30 is a through hole, and along said radial hole 30 radially be equipped with pin 7 in the bottom of said radial hole 30.Radial hole 30 being made as through hole here is the installation for the ease of circular shell 6, sense power ball 5 and sense power spring 4; Wherein erection sequence is: at first circular shell 6 is fixed on radial hole 30 inside; And then will feel power ball 5 and sense power spring 4 from the bottom of radial hole 30 radially hole 30 axially be installed in circular shell 6 inside successively; Then pin 7 is fixed on radial hole 30 bottoms, 7 pairs of senses of pin power spring 4 plays the support fixation effect; In addition, pin 7 can be a resilient key, guarantees that pin 7 can assemble smoothly.
As a kind of improvement; The lower end of circular shell described in the embodiment of the invention 6 is provided with step 60; Said radial hole 30 is the stepped shaft through hole that cooperates with said step 60, and referring to Fig. 4 or Fig. 5, circular shell 6 cooperates with declutch shift shaft 3 interior stepped shaft through holes; And be fixed in the declutch shift shaft 3 through step 60, guaranteed the steadiness of circular shell 6 in declutch shift shaft 3.Wherein, can be provided with tapped hole (not shown) on the step surface of step 60, circular shell 6 is fixed in the declutch shift shaft 3 through screw.
Improve as another kind, can know from Fig. 4 or Fig. 5 once more, be provided with positioning seat 8 between said sense power ball 5 and the said sense power spring 4.Before this improved, sense power ball 5 was that line contacts with sense power spring 4; After the improvement; Said sense power ball 5 and positioning seat 8 are to contact; Because the frictional force that the some contact is produced is littler than the frictional force that the line contact is produced; Therefore the sense power ball 5 after improving is little in the frictional force that time rotational receives, and this makes reverse gear sense power piece 1 reduce with the force of rolling friction that sense power ball 5 contacts generation, thereby has further improved the smoothness of hanging reverse gear.
Can know that referring to Fig. 6 the bottom of said positioning seat 8 is provided with groove 80, the upper end of said sense power spring 4 is in the said groove 80.Sense power spring 4 can not produced rock, and can be positioned at preferably in the radial hole 30, improve the steadiness of sense power spring 4.
The declutch shift shaft 3 that the embodiment of the invention provides is 1,2 retaining declutch shift shafts or 3,4 retaining declutch shift shafts.The hand-propelled vehicle that is primarily aimed at low and middle-end owing to the embodiment of the invention designs; So have only five gear; Wherein 1 retaining, 3 retainings, 5 retainings and 2 retainings, 4 retainings, R retaining (reverse gear) are designed to two rows, therefore consider preferred 1, the 2 retaining declutch shift shafts or 3 of declutch shift shaft, 4 retaining declutch shift shafts from the topology layout angle.
Here reverse gear synchronizer course of action is carried out brief account; When driver's extension reverses gear; Gearshift axle 2 connects reverse speed shift rods, and the reverse gear sense power piece 1 on the gearshift axle 2 moves to the top of the sense power ball 5 that is arranged in declutch shift shaft 3 simultaneously, and the shift fork on the reverse speed shift rod is stirred the reverse gear combined cover simultaneously and moved to reverse gear; Because the force of rolling friction that produces behind reverse gear sense power piece 1 and sense power ball 5 contact movements can drive declutch shift shaft 3 and produce motion; Make the synchronizer of 1,2 retainings combine or 3,4 synchronizers that keep off combine with fourth gear, when idling, reduced input shaft rotational speed in the speed changer, the reverse gear combined cover is combined with reverse gear stably with intermediate gear; Thereby reach the synchronous purpose of reverse gear, and enter into the reverse gear gear.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection domain with claim.
Claims (9)
1. reverse gear synchronizer comprises the gearshift axle and the declutch shift shaft of adjacent setting being installed with reverse gear sense power piece on the said gearshift axle; Said declutch shift shaft is provided with radial hole; It is characterized in that, be provided with sense power ball in the said radial hole, it is outside that the spherical calotte of said sense power ball is positioned at said radial hole; When hanging reverse gear, said reverse gear sense power piece contacts with said sense power ball and moves through the moving said declutch shift shaft of said sense power spherical zone.
2. reverse gear synchronizer according to claim 1 is characterized in that, it is outside that fewer than half spherical calotte of said sense power ball is positioned at said radial hole.
3. reverse gear synchronizer according to claim 2 is characterized in that, is provided with the sense power spring that supports sense power ball in the said radial hole.
4. reverse gear synchronizer according to claim 3 is characterized in that, is provided with the circular shell that holds said sense power ball in the said radial hole, and the inner side surface of said circular shell upper end is provided with the inclined-plane to said circular shell inner inclination.
5. reverse gear synchronizer according to claim 4 is characterized in that, it is inner that said sense power spring is contained in said circular shell; Or said sense power spring is located at said circular shell below.
6. according to claim 4 or 5 described reverse gear synchronizers, it is characterized in that said radial hole is a through hole, and along said radial hole radially be equipped with pin in the bottom of said radial hole.
7. reverse gear synchronizer according to claim 6 is characterized in that the lower end of said circular shell is provided with step, and said radial hole is the stepped shaft through hole that cooperates with said step.
8. reverse gear synchronizer according to claim 7 is characterized in that, is provided with positioning seat between said sense power ball and the said sense power spring.
9. reverse gear synchronizer according to claim 8 is characterized in that the bottom of said positioning seat is provided with groove, and the upper end of said sense power spring is in the said groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210090592.1A CN102606713B (en) | 2012-03-30 | 2012-03-30 | One is reversed gear synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210090592.1A CN102606713B (en) | 2012-03-30 | 2012-03-30 | One is reversed gear synchronizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606713A true CN102606713A (en) | 2012-07-25 |
| CN102606713B CN102606713B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210090592.1A Active CN102606713B (en) | 2012-03-30 | 2012-03-30 | One is reversed gear synchronizer |
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| CN (1) | CN102606713B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5887688A (en) * | 1994-06-01 | 1999-03-30 | Ina Walzlager Schaeffler Kg | Synchronizing device for manual transmissions |
| FR2853377B1 (en) * | 2003-04-03 | 2005-06-24 | Peugeot Citroen Automobiles Sa | SYNCHRONIZER OF GEARBOX, IN PARTICULAR FOR AUTOMOTIVE VEHICLES |
| KR20060071455A (en) * | 2004-12-22 | 2006-06-27 | 현대자동차주식회사 | Position sensor combination structure |
| CN101363514A (en) * | 2008-09-25 | 2009-02-11 | 上海汽车变速器有限公司 | Steel ball and spring block type synchronization device |
| EP2163778A2 (en) * | 2008-09-11 | 2010-03-17 | Oberlikon Graziano S.p.A. | Synchronizer for vehicule transmissions with pre-synchronizing device having spring-loaded balls. |
| CN101029683B (en) * | 2006-02-27 | 2011-04-13 | 协和合金株式会社 | Synchronizer device for transmission |
| CN201902536U (en) * | 2010-12-08 | 2011-07-20 | 东风汽车有限公司 | Sliding block type automobile gearbox synchronizer |
-
2012
- 2012-03-30 CN CN201210090592.1A patent/CN102606713B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5887688A (en) * | 1994-06-01 | 1999-03-30 | Ina Walzlager Schaeffler Kg | Synchronizing device for manual transmissions |
| FR2853377B1 (en) * | 2003-04-03 | 2005-06-24 | Peugeot Citroen Automobiles Sa | SYNCHRONIZER OF GEARBOX, IN PARTICULAR FOR AUTOMOTIVE VEHICLES |
| KR20060071455A (en) * | 2004-12-22 | 2006-06-27 | 현대자동차주식회사 | Position sensor combination structure |
| CN101029683B (en) * | 2006-02-27 | 2011-04-13 | 协和合金株式会社 | Synchronizer device for transmission |
| EP2163778A2 (en) * | 2008-09-11 | 2010-03-17 | Oberlikon Graziano S.p.A. | Synchronizer for vehicule transmissions with pre-synchronizing device having spring-loaded balls. |
| CN101363514A (en) * | 2008-09-25 | 2009-02-11 | 上海汽车变速器有限公司 | Steel ball and spring block type synchronization device |
| CN201902536U (en) * | 2010-12-08 | 2011-07-20 | 东风汽车有限公司 | Sliding block type automobile gearbox synchronizer |
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| Publication number | Publication date |
|---|---|
| CN102606713B (en) | 2016-01-20 |
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