CN203892540U - Gear shifting mechanism - Google Patents
Gear shifting mechanism Download PDFInfo
- Publication number
- CN203892540U CN203892540U CN201420285119.3U CN201420285119U CN203892540U CN 203892540 U CN203892540 U CN 203892540U CN 201420285119 U CN201420285119 U CN 201420285119U CN 203892540 U CN203892540 U CN 203892540U
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- CN
- China
- Prior art keywords
- gear
- shaft
- forward gear
- shift fork
- shifting
- 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.)
- Withdrawn - After Issue
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model provides a gear shifting mechanism having the reverse gear braking function. The gear shifting mechanism comprises a gear shifting shaft, a forward gear shifter shaft, an R gear shifter shaft, an input shaft, an output shaft, a forward gear shifter mouth, a forward gear synchronizer, a first backward gear, a second backward gear and a forward gear, wherein the forward gear shifter shaft, the R gear shifter shaft, the input shaft and the output shaft are perpendicular to the gear shifting shaft, the gear shift shaft is connected with an interlocking plate, a pressure torsional spring, a shifting piece and a shifting finger in a sleeved mode in sequence, the gear shifting shaft and the forward gear shifter shaft are connected through the forward gear shifter mouth, and the forward gear shifter shaft is connected with a forward gear shifter in a sleeved mode. According to the gear shifting mechanism, deceleration and braking can be conducted on reverse gear straight teeth by means of the synchronizing function of the forward gear, a vehicle can be prevented from being put into the forward gear, and the problems that tooth collision occurs when a reserve gear synchronizer is not available and the high-gear force is large when a lever synchronizer is adopted are effectively solved.
Description
Technical field
The utility model relates to mechanical field, relates in particular to a kind of gearshift.
Background technique
At present for not having reverse gear synchronizer speed changer generally to adopt two schemes to solve the problem of putting into gear:
One, directly stop and put into gear; The deficiency of this mode of putting into gear is to reverse gear hang low into rate and beat tooth abnormal sound with speed changer.
Two, at high speed gear, use lever synchronizer, by the reverse rotating brake function of lever synchronizer, gear reversing function is braked; The deficiency of this scheme is: the lever quality of lever synchronizer is larger, when top gear is put into gear, due to centrifugal action, makes top gear gear shifting force increase (on general handle, gear shifting force increases 30 ~ 40N).
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of gearshift, comprising:
Shifting shaft (1); The forward gear declutch shift shaft (10) vertical with described shifting shaft (1), R keep off declutch shift shaft (12), input shaft (81) and output shaft (82); Forward gears shift fork mouth (9), forward gears synchronizer (6), the first reverse gear (71), the second reverse gear (72) and forward gears gear (83);
Described shifting shaft (1) is socketed with successively interlock board (2), presses torsion spring (3), plectrum (4), reversal means (5); Described shifting shaft (1) rotarily drives described plectrum (4), and described plectrum (4) matches with described forward gears shift fork mouth (9);
Between described shifting shaft (1) and described forward gear declutch shift shaft (10), by described forward gear shift fork mouth (9), be connected; On described forward gear declutch shift shaft (10), be socketed with forward gear shift fork (11); Described forward gears shift fork (11) is connected with described forward gears shift fork mouth (9); Described forward gears shift fork (11) matches with described forward gears synchronizer (6);
Described the first reverse gear (71), described forward gear synchronizer (6) are socketed in described input shaft (81) above successively with described forward gears gear (83), and described the second reverse gear (72) is socketed in described output shaft (82) above and is meshed with the first reverse gear (71).
Wherein, it is upper that a pin of described pressure torsion spring (3) rides over described reversal means (5), and it is upper that another pin rides over described plectrum (4), and described plectrum (4) pretension is resisted against in described reversal means (5); Described interlock board (2) is connected across described reversal means (5) two ends.
Wherein, described reversal means (5) extends to form limited location projection (50), described spacing preiection (50) has relative the first confined planes (51) and the second confined planes (52), described plectrum (4) comprises shifting block (43), described shifting block (43) has relative the first abutment facing (41) and the second abutment facing (42), one pin of described pressure torsion spring (3) rides on first confined planes (51) of described spacing preiection (50), one pin of described pressure torsion spring (3) rides on first abutment facing (41) of described shifting block (43), second confined planes (52) of described spacing preiection (50) and second abutment facing (42) of described shifting block (43) against.
Wherein, described forward gear shift fork mouth (9) has breach, and described plectrum (4), reversal means (5) and interlock board (2) are arranged in the breach of described forward gear shift fork mouth (9) and can move axially along described shifting shaft (1).
Wherein, described gearshift also comprises self-lock pin (14), is provided with the groove (102) of W type on described forward gear declutch shift shaft (10), and described self-lock pin (14) matches with the groove (102) of described W type.
Wherein, described plectrum (4) comprises shifting block (43), and described forward gear shift fork mouth (9) comprises jut (91), and described shifting block (43) matches with described jut (91).
Wherein, described reversal means (5) comprises finger (54), described forward gear shift fork mouth (9) offers groove (92), described groove (92) is positioned at a side of described jut (91), and described finger (54) is arranged in described groove (92) and matches with described forward gear declutch shift shaft (10) or R gear declutch shift shaft (12).
Wherein, the aperture position of described groove (92) extends to form limited location projection away from jut (91) described in a side direction of described jut (91).
Wherein, described the first reverse gear (71) and described the second reverse gear (72) are spur gear.
Implement the utility model, can be when extension reverses gear, the advance synchronizing function of gear of utilization is carried out reduction of speed braking to reverse gear straight gear, and don't can put into forward gear, and has effectively solved the large problem of top gear gear power when beating tooth and using lever synchronizer of putting into gear while reversing gear without synchronizer.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 provides a kind of overall structure schematic diagram of gearshift for the utility model;
Fig. 2 provides a kind of shifting shaft of gearshift and one of each part assembling schematic diagram on it for the utility model;
Fig. 3 provides a kind of shifting shaft of gearshift and the decomposing schematic representation of each part on it for the utility model;
Fig. 4 for the utility model a kind of shifting shaft of gearshift is provided and on it each part another assembling schematic diagram;
Fig. 5 provides a kind of structural representation of forward gear shift fork mouth of gearshift for the utility model;
Fig. 6 provides the schematic diagram of a kind of gearshift in changing the process of reversing gear for the utility model;
Fig. 7 provides the another schematic diagram of a kind of gearshift in changing the process of reversing gear for the utility model;
Fig. 8 provides the view from lock and forward gear fork axle of a kind of gearshift in changing the process of reversing gear for the utility model;
Fig. 9 provides the another view from lock and forward gear fork axle of a kind of gearshift in changing the process of reversing gear for the utility model;
Figure 10 provides a kind of gearshift at the schematic diagram returning while reversing gear room for the utility model;
Figure 11 provides the schematic diagram of a kind of gearshift when returning forward gear meta for the utility model;
Figure 12 provides the another schematic diagram of a kind of gearshift when returning forward gear meta for the utility model.
Embodiment
Referring to Fig. 1, a kind of gearshift that the utility model provides, comprising:
Shifting shaft 1, it is arranged on gear box casing and can rotates around self axis; Keep off declutch shift shaft 12, input shaft 81 and output shaft 82 with the vertical forward gear declutch shift shaft 10 of described shifting shaft 1, R; Forward gears shift fork mouth 9, forward gears synchronizer 6, the first reverse gear 71, the second reverse gears 72 and forward gears gears 83;
As shown in Figure 2, described shifting shaft 1 is socketed with successively interlock board 2, presses torsion spring 3, plectrum 4, reversal means 5; Described shifting shaft 1 rotarily drives described plectrum 4, and described plectrum 4 matches with described forward gears shift fork mouth 9;
Between described shifting shaft 1 and described forward gear declutch shift shaft 10, by forward gear shift fork mouth 9, be connected; On described forward gear declutch shift shaft 10, be socketed with forward gear shift fork 11; Described forward gears shift fork 11 is connected with described forward gears shift fork mouth 9; Described forward gears shift fork 11 matches with described forward gears synchronizer 6;
Described the first reverse gear 71, described forward gear synchronizer 6 are socketed on input shaft 81 successively with described forward gears gear 83, and the second reverse gear straight gear 72 is socketed on output shaft 82 and with the first reverse gear 71 and is meshed;
In changing the process of reversing gear, described shifting shaft 1 rotarily drives described plectrum 4, described plectrum 4 is stirred described forward gear shift fork mouth 9 moving axially along described forward gear declutch shift shaft 10, forward gear shift fork mouth (9) drives described forward gear shift fork 11 to stir described forward gear synchronizer 6 and moves axially and the forward gear gear 83 of the rotating speed of described forward gear synchronizer 6 and the shaftgear of described output shaft 82 engagement is synchronizeed along input shaft 81, the rotating speed of described output shaft 82 is zero, and described the first reverse gear straight gear 71 is realized to the braking of reversing gear.
In addition, described gearshift also comprises:
R keeps off shifting fork mechanism 13, and its empty set is kept off on declutch shift shaft 12 at described R, and along its axial upward sliding.
Be arranged on the reverse gear shaft 15 on gear box casing, on it, being set with can be along described reverse gear shaft 15 idle pulley 8 that reverses gear in axial sliding.
Wherein, on described forward gear declutch shift shaft 10, be provided with in groove 102(Fig. 1 of W type invisible, specifically as shown in Figure 8 and Figure 9); Described gearshift also comprises: be arranged on gear box casing the self-lock pin 14 coordinating with the groove 102 of the W type of described forward gear declutch shift shaft 10.
Referring to Fig. 3 and Fig. 4, reversal means 5 is fixedly mounted on shifting shaft 1 by hole 53, and described interlock board 2 is connected across the two ends of described reversal means 5; Described plectrum 4 pretensions are against in described reversal means 5; Concrete, described reversal means 5 extends to form limited location projection 50, and described spacing preiection 50 has the first relative confined planes 51 and the second confined planes 52; Described reversal means 5 also comprises finger 54; Described plectrum 4 comprises shifting block 43, described shifting block 43 has the first relative abutment facing 41 and the second abutment facing 42, one pin of described pressure torsion spring 3 rides on the first confined planes 51 of described spacing preiection 50, another pin of described pressure torsion spring 3 rides on the first abutment facing 41 of described shifting block 43, the second confined planes 52 of described spacing preiection 50 and the second abutment facing 42 of described shifting block 43 against.
Wherein, as shown in Figure 5, described forward gears shift fork mouth 9 has breach, and it comprises a jut 91 and groove 92, described groove 92 is positioned at a side of described jut 91, and described finger 54 is arranged in described groove 92 and matches with described forward gear declutch shift shaft 10 or R gear declutch shift shaft 12.The aperture position of this groove 92 extends to form limited location projection away from jut 91 described in a side direction of described jut 91.Described jut 91 matches with the shifting block 43 of paddle 4.
So structure moves axially described plectrum 4, reversal means 5, interlock board 2 in the breach of described forward gear shift fork mouth 9 along shifting shaft 1.
The working principle of the gearshift with the braking function that reverses gear that the utility model provides is as follows:
When choosing is reversed gear, described reversal means 5 is chosen the prong position of described R gear declutch shift shaft 12, and described plectrum 4 is chosen the position of described forward gear shift fork mouth 9, the shifting block 43 of described plectrum 4 and jut 91 Spielpassung of described forward gear shift fork mouth 9.
In changing the process of reversing gear, by shifting shaft 1, rotarily driving plectrum 4, to stir the forward gear shift fork mouth 9 motion 2 ~ 3mm(that moves upward concrete as Fig. 6, shown in Fig. 7, groove 92 Spielpassung on a pin 21 of interlock board 2 and forward gear shift fork mouth 9 now, forward gear shift fork mouth 9 can be moved upward), stir forward gear synchronizer 6 with the forward gear shift fork 11 of forward gear shift fork mouth 9 on same forward gears declutch shift shaft 10, now forward gear synchronizer 6 is started working, forward gear synchronizer 6 is moved axially and rotating speed and shifting gear 83 synchronization along input shaft 81, and this shifting gear 83 and output shaft 82 gear engagements, when vehicle stop state, output shaft 82 rotating speeds are zero, and forward gear synchronizer 6 and the first reverse gear straight gear 71 are all fixedly connected on input shaft 81, so it is 0 or extremely low that the first reverse gear spur gear 71 rotating speeds are braked.
Wherein, described the first reverse gear 71 and described the second reverse gear 72 are spur gear.
Forward gear synchronizer 6 synchronize with this shifting gear after the shifting block 43 of plectrum 4 cross the jut 91 of forward gear shift fork mouth 9, self-lock pin 14 and forward gear declutch shift shaft 10 are in state shown in Fig. 8, under the effect of spring-compressed power, forward gear declutch shift shaft 10 drives forward gear shift fork mouth 9 and forward gear synchronizer 6 to get back to the initial position shown in Fig. 9.And being rotated further shifting shaft 1, reversal means 5 is rotated further stirs R gear declutch shift shaft 12 and moves upward, and stirs the idle pulley 8 that reverses gear and hangs into reversing gear straight-tooth 7, as shown in figure 10 by connecting R gear shifting fork mechanism 13 thereon.
Returning while reversing gear room, the shifting block back side 44 of described plectrum 4 contacts with jut 91 tops of described forward gear shift fork mouth 9, the twisting force that overcomes described pressure torsion spring 3 rotates counterclockwise around described shifting shaft 1, as shown in figure 10, described reversal means 5 is got back to meta position under the drive of described shifting shaft 1.
When returning forward gear meta, the jut 91 of described forward gear shift fork mouth 9 is axially being avoided at the shifting block back side 44 of described plectrum 4, under the twisting force of described pressure torsion spring 3, around described shifting shaft 1, clockwise rotate, state is as shown in figure 11 got back at the shifting block back side 44 of described plectrum 4.Described reversal means 5 is got back to forward gear meta as shown in figure 11 under the drive of described shifting shaft 1.
Implement the utility model, can be when extension reverses gear, the advance synchronizing function of gear of utilization is carried out reduction of speed braking to reverse gear straight gear, and don't can put into forward gear, and has effectively solved the large problem of top gear gear power when beating tooth and using lever synchronizer of putting into gear while reversing gear without synchronizer.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. a gearshift, is characterized in that, comprising:
Shifting shaft (1); The forward gear declutch shift shaft (10) vertical with described shifting shaft (1), R keep off declutch shift shaft (12), input shaft (81) and output shaft (82); Forward gears shift fork mouth (9), forward gears synchronizer (6), the first reverse gear (71), the second reverse gear (72) and forward gears gear (83);
Described shifting shaft (1) is socketed with successively interlock board (2), presses torsion spring (3), plectrum (4), reversal means (5); Described shifting shaft (1) rotarily drives described plectrum (4), and described plectrum (4) matches with described forward gears shift fork mouth (9);
Between described shifting shaft (1) and described forward gear declutch shift shaft (10), by described forward gear shift fork mouth (9), be connected; On described forward gear declutch shift shaft (10), be socketed with forward gear shift fork (11); Described forward gears shift fork (11) is connected with described forward gears shift fork mouth (9); Described forward gears shift fork (11) matches with described forward gears synchronizer (6);
Described the first reverse gear (71), described forward gear synchronizer (6) are socketed in described input shaft (81) above successively with described forward gears gear (83), and described the second reverse gear (72) is socketed in described output shaft (82) above and is meshed with the first reverse gear (71).
2. gearshift as claimed in claim 1, is characterized in that, it is upper that a pin of described pressure torsion spring (3) rides over described reversal means (5), and it is upper that another pin rides over described plectrum (4), and described plectrum (4) pretension is resisted against in described reversal means (5); Described interlock board (2) is connected across described reversal means (5) two ends.
3. gearshift as claimed in claim 2, it is characterized in that, described reversal means (5) extends to form limited location projection (50), described spacing preiection (50) has relative the first confined planes (51) and the second confined planes (52), described plectrum (4) comprises shifting block (43), described shifting block (43) has relative the first abutment facing (41) and the second abutment facing (42), one pin of described pressure torsion spring (3) rides on first confined planes (51) of described spacing preiection (50), one pin of described pressure torsion spring (3) rides on first abutment facing (41) of described shifting block (43), second confined planes (52) of described spacing preiection (50) and second abutment facing (42) of described shifting block (43) against.
4. gearshift as claimed in claim 1, it is characterized in that, described forward gear shift fork mouth (9) has breach, and described plectrum (4), reversal means (5) and interlock board (2) are arranged in the breach of described forward gear shift fork mouth (9) and can move axially along described shifting shaft (1).
5. gearshift as claimed in claim 1, is characterized in that, described gearshift also comprises self-lock pin (14), is provided with the groove (102) of W type on described forward gear declutch shift shaft (10), and described self-lock pin (14) matches with the groove (102) of described W type.
6. gearshift as claimed in claim 1, is characterized in that, described plectrum (4) comprises shifting block (43), and described forward gear shift fork mouth (9) comprises jut (91), and described shifting block (43) matches with described jut (91).
7. gearshift as claimed in claim 6, it is characterized in that, described reversal means (5) comprises finger (54), described forward gear shift fork mouth (9) offers groove (92), described groove (92) is positioned at a side of described jut (91), and described finger (54) is arranged in described groove (92) and matches with described forward gear declutch shift shaft (10) or R gear declutch shift shaft (12).
8. gearshift as claimed in claim 7, is characterized in that, the aperture position of described groove (92) extends to form limited location projection away from jut (91) described in a side direction of described jut (91).
9. gearshift as claimed in claim 1, is characterized in that, described the first reverse gear (71) and described the second reverse gear (72) are spur gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285119.3U CN203892540U (en) | 2014-05-30 | 2014-05-30 | Gear shifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420285119.3U CN203892540U (en) | 2014-05-30 | 2014-05-30 | Gear shifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892540U true CN203892540U (en) | 2014-10-22 |
Family
ID=51718948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420285119.3U Withdrawn - After Issue CN203892540U (en) | 2014-05-30 | 2014-05-30 | Gear shifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276155A (en) * | 2014-05-30 | 2016-01-27 | 广州汽车集团股份有限公司 | Gearshift mechanism |
| CN105889499A (en) * | 2015-01-26 | 2016-08-24 | 舍弗勒技术股份两合公司 | Gear shifting tower assembly, prong frames and manual speed-changing system |
-
2014
- 2014-05-30 CN CN201420285119.3U patent/CN203892540U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276155A (en) * | 2014-05-30 | 2016-01-27 | 广州汽车集团股份有限公司 | Gearshift mechanism |
| CN105276155B (en) * | 2014-05-30 | 2018-09-28 | 广州汽车集团股份有限公司 | A kind of gearshift |
| CN105889499A (en) * | 2015-01-26 | 2016-08-24 | 舍弗勒技术股份两合公司 | Gear shifting tower assembly, prong frames and manual speed-changing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20180928 |