CN202144844U - Novel lock pin type synchronizer - Google Patents
Novel lock pin type synchronizer Download PDFInfo
- Publication number
- CN202144844U CN202144844U CN201120234206U CN201120234206U CN202144844U CN 202144844 U CN202144844 U CN 202144844U CN 201120234206 U CN201120234206 U CN 201120234206U CN 201120234206 U CN201120234206 U CN 201120234206U CN 202144844 U CN202144844 U CN 202144844U
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- CN
- China
- Prior art keywords
- tooth cover
- synchronizing ring
- lock pin
- synchronizer
- pair
- 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.)
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Abstract
The utility model discloses a novel lockpin formula synchronizer includes a pair of synchronizer ring, the tooth cover, the lockpin, the locating pin, steel ball and spring, the tooth cover is located between a pair of synchronizer ring, the locating pin passes tooth cover and both ends and contradicts with two synchronizer rings respectively, set up the constant head tank that is located the locating pin below in the tooth cover, the locating pin corresponds towards one side of constant head tank and has seted up the recess, the spring holding is in the positioning tank bottom, the one end holding of steel ball is in the recess, the other end and the spring of steel ball are contradicted, the lockpin passes tooth cover and both ends and fixes respectively in a pair of synchronizer ring, the lateral surface and the medial surface of at least. The utility model discloses a lockpin formula synchronous ware shift time short, shift light and fast and long service life.
Description
Technical field
The utility model relates to automobile gearbox, relates in particular to a kind of novel lock pin-type synchronizer.
Background technique
There is speed discrepancy in automotive transmission between shifting gear and the transmission shaft in shift process, need utilize the synchronizing ring in the synchronizer in this case, makes the synchronization of shifting gear and transmission shaft through friction.Pin-type synchronizer is because synchronously the friction diameter is big, synchronous effect good, low cost of manufacture, since coming out, has been widely used on the speed changer of motor bus of medium-sized, heavy truck and appropriate level.
Usually, pin-type synchronizer mainly comprises: two synchronizing ring, tooth cover, several lock pins, several locating studs, several steel balls and several springs.Tooth is sheathed between two synchronizing ring, and locating stud passes tooth cover and two ends and two synchronizing ring and conflicts, and lock pin passes the tooth cover and two ends are separately fixed in two synchronizing ring.Be provided with the locating slot of the below that is positioned at locating stud in the tooth cover, locating stud is provided with groove towards a side of locating slot.Spring is placed in the bottom of locating slot, and an end of steel ball is placed in the groove of locating stud and the other end is conflicted with spring is connected.Particularly, two synchronizing ring are socketed in respectively in high-grade gear and the low-grade gear.And each synchronizing ring all has conical outer side surface and circular inner side surface, and high-grade gear and low-grade gear all have the annular containing groove that holds synchronizing ring, and the inner ring surface of said containing groove is taper shape and outer ring surface is rounded.During assembling, the outer side surface of synchronizing ring contacts with the inner ring surface of gear, and the inner side surface of synchronizing ring contacts with the outer ring surface of gear.During work, the friction that produces between the taper outer side surface through synchronizing ring and the taper inner ring surface of gear, synchronous between transmission shaft of realizing being connected and the gear with synchronizing ring.
Yet; Be transformed into from third gear the process of second gear at automobile,, thereby need bigger frictional force during gear shift because this moment, the speed of a motor vehicle of shifting gears was lower; And the synchronizing ring in the existing pin-type synchronizer is that single conical surface friction is stressed; The friction torque that when gearshift, provides is not enough, thus enough frictional force can not be provided, thus cause automobile gearshift difficulty in the process of moving.
Therefore, be necessary to provide a kind of novel lock pin-type synchronizer to overcome the problems referred to above.
The model utility content
The purpose of the utility model provides short, the novel lock pin-type synchronizer brisk and that can effectively increase the service life of shifting gears of a kind of time of shifting gears.
To achieve these goals, the utility model provides a kind of lockpin-type automobile gearbox synchronizer to comprise a pair of synchronizing ring, tooth cover, lock pin, locating stud, steel ball and spring, and tooth is sheathed between a pair of synchronizing ring; Locating stud passes the tooth cover and conflict with two synchronizing ring respectively in two ends; Offer the locating slot that is positioned at the locating stud below in the tooth cover, locating stud offers groove towards a side correspondence of locating slot, and spring is placed in the locating slot bottom; One end of steel ball is placed in the groove; The other end of steel ball and spring are conflicted, and lock pin passes the tooth cover and two ends are separately fixed in a pair of synchronizing ring, and the outer side surface of at least one synchronizing ring and inner side surface are all tapered.
Preferably, offer oilhole on the synchronizing ring.Oilhole is used for the distribution of oil.
Preferably, rivet with a pair of synchronizing ring respectively at the two ends of lock pin.
Preferably, the cross section of groove is inversion V-type or trapezoidal.
Compared with prior art, be outer side surface and inner side surface owing to one of them synchronizing ring in the novel lock pin-type synchronizer of the utility model has two conical surfaces, thereby; Increased the area of contact of synchronizing ring and shifting gear; Thereby increased friction torque, realized that the gearshift time short, momentum reduces synchronously; Final feasible gearshift is smooth, brisk, and has effectively prolonged the working life of synchronizer.
Through following description and combine accompanying drawing, it is more clear that the utility model will become, and these accompanying drawings are used to explain the embodiment of the utility model.
Description of drawings
Fig. 1 is the structural representation of the novel lock pin-type synchronizer of the utility model.
Fig. 2 is the structural representation of synchronizing ring of the novel lock pin-type synchronizer of the utility model.
Fig. 3 is the sectional drawing of synchronizing ring shown in Figure 2.
Fig. 4 is the novel lock pin-type synchronizer of the utility model and the structural representation of three gear gears and two gear gear matched.
Fig. 5 is the structural representation of two gear gears shown in Fig. 4.
Fig. 6 is the sectional drawing of two gear gears shown in Figure 5.
Embodiment
With reference now to accompanying drawing, describe the embodiment of the utility model, the similar elements label is represented similar elements in the accompanying drawing.
As shown in Figure 1, present embodiment novel lock pin-type synchronizer 100 comprises two synchronizing ring 10 and 11, tooth cover 12, several lock pins 13, several locating studs 14, several steel balls 15 and several springs 16.Said tooth cover 12 is located between said synchronizing ring 10 and the said synchronizing ring 11, and the two ends of said tooth cover 12 are respectively equipped with mounting hole (not shown) and following mounting hole (not shown).Said upward mounting hole and two ends that said locating stud 14 passes said tooth cover 12 are connected with the top conflict of said synchronizing ring 10 and said synchronizing ring 11 respectively.Be provided with the locating slot 17 that is positioned at said locating stud 14 belows in the said tooth cover 12, said locating stud 14 is provided with towards a side correspondence of said locating slot 17 and is the groove 18 of being inverted V-type.Said spring 16 is placed in the bottom of said locating slot 17, and an end of said steel ball 15 is placed in the said groove 18, and the other end of said steel ball 15 is conflicted with said spring 16 and is connected.The two ends of said lock pin 13 are riveted on respectively in the said lockpin hole 19 of said synchronizing ring 10 and said synchronizing ring 11.
With reference to figure 1-3, the outer side surface 21 of said synchronizing ring 10 is all tapered with inner side surface 22.The outer side surface 20 of said synchronizing ring 11 is tapered.Particularly, all offer first oilhole 23 on said synchronizing ring 10 and the said synchronizing ring 11, be used for the distribution of oil.
With reference to figure 4-6, the both sides of the novel lock pin-type synchronizer of present embodiment are connected with two gear gears 30 with three gear gears 40 respectively.Wherein, two gear gears 30 are provided with the containing groove 34 of annular, and said containing groove 34 has the outer ring surface 31 of taper and the inner ring surface 32 of taper.And offer second oilhole 33 on the two gear gears 30, be used for the distribution of oil.When said synchronizing ring 10 cooperated with two gear gears 30, the taper outer side surface 21 of said synchronizing ring 10 and tapered inner side surfaces 22 contacted with the outer ring surface 31 of the taper inner ring surface 32 of two gear gears 30 and taper respectively and produce friction.
The utility model pin-type synchronizer is installed on the output shaft (not shown) of automobile gearbox through toothholder 50.Shift fork (not shown) is contained in the fork slot of said tooth cover 12.
Describe the working procedure of the utility model lockpin-type automobile gearbox synchronizer in detail below in conjunction with Fig. 1-6.The speed changer Joystick selects gear shifting rocking arm through drag-line mechanism pulling speed changer; The shift fork that the gearshift rocking arm drives on the declutch shift shaft moves; Tooth cover 12 moves to two gear gears 30 under the drive of shift fork vertically; Locating stud 14 drives synchronizing ring 10 before the elastic force that does not overcome spring 16 and moves to two gear gears 30 vertically with synchronizing ring 11, and the taper outer side surface 21 that makes synchronizing ring 10 and inner side surface 22 contact and produce friction with the taper outer ring surface 31 of the containing groove 34 of two gear gears 30 with inner ring surface 32 respectively.At this moment, tooth cover 12 and lock pin 13 are that relative rotation is done at the center with separately axis all, under the effect of friction torque, and tooth cover 12 and lock pin 13 mutual lockings.When synchronizing ring 10 and two gear gears 30 reach synchronization; Locking between tooth cover 12 and the lock pin 13 is removed; Locating stud 14 overcome spring 16 elastic force and down pressing steel balls 15 and the spline that drives tooth cover 12 and two gear gears 30 combine the tooth engagement, thereby the completion shift process.
By on can know since in the novel lock pin-type synchronizer 100 of the utility model one of them synchronizing ring 10 to have two conical surfaces be outer side surface 21 and inner side surface 22, thereby; Increased the area of contact of synchronizing ring 10 with shifting gear 30; Thereby increased friction torque, realized that the gearshift time short, momentum reduces synchronously; Final feasible gearshift is smooth, brisk, and has effectively prolonged the working life of synchronizer 100.
More than combine most preferred embodiment that the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to the essence of the utility model.
Claims (4)
1. a novel lock pin-type synchronizer comprises a pair of synchronizing ring (10,11), tooth cover (12), lock pin (13), locating stud (14), steel ball (15) and spring (16); Tooth cover (12) is located between a pair of synchronizing ring (10,11); Locating stud (14) passes tooth cover (12) and conflict with two synchronizing ring (10,11) respectively in two ends, offers the locating slot (17) that is positioned at locating stud (14) below in the tooth cover (12), and locating stud (14) offers groove (18) towards a side correspondence of locating slot (17); Spring (16) is placed in locating slot (17) bottom; One end of steel ball (15) is placed in the groove (18), and the other end of steel ball (15) and spring (16) are conflicted, and lock pin (13) passes tooth cover (12) and two ends are separately fixed in a pair of synchronizing ring (10,11); It is characterized in that the outer side surface of at least one synchronizing ring and inner side surface are all tapered.
2. novel lock pin-type synchronizer as claimed in claim 1 is characterized in that, offers first oilhole (23) on the synchronizing ring (10).
3. novel lock pin-type synchronizer as claimed in claim 2 is characterized in that, rivet with a pair of synchronizing ring (10,11) respectively at the two ends of lock pin (13).
4. like any described novel lock pin-type synchronizer among the claim 1-3, it is characterized in that the cross section of groove (18) is is inverted V-type or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120234206U CN202144844U (en) | 2011-07-05 | 2011-07-05 | Novel lock pin type synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120234206U CN202144844U (en) | 2011-07-05 | 2011-07-05 | Novel lock pin type synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202144844U true CN202144844U (en) | 2012-02-15 |
Family
ID=45580775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120234206U Expired - Lifetime CN202144844U (en) | 2011-07-05 | 2011-07-05 | Novel lock pin type synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202144844U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734402A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel 16-gear speed changing box with oblique gears, double middle shafts and lock ring type synchronizers |
| CN103089843A (en) * | 2012-10-11 | 2013-05-08 | 赵孝生 | Synchronizer for electric automobile |
| CN107630947A (en) * | 2017-10-31 | 2018-01-26 | 江苏追日汽车同步器有限公司 | A kind of self-positioning automobile synchronizer |
| CN109648034A (en) * | 2018-12-20 | 2019-04-19 | 赣州群星机械有限公司 | A kind of synchronizer assembly rivets the positioning device of built-in lock pin |
-
2011
- 2011-07-05 CN CN201120234206U patent/CN202144844U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734402A (en) * | 2012-06-27 | 2012-10-17 | 中国重汽集团济南动力有限公司 | Novel 16-gear speed changing box with oblique gears, double middle shafts and lock ring type synchronizers |
| CN102734402B (en) * | 2012-06-27 | 2015-11-25 | 中国重汽集团济南动力有限公司 | The two jack shaft pin-type synchronizer gearbox of novel 16 grades of helical teeth |
| CN103089843A (en) * | 2012-10-11 | 2013-05-08 | 赵孝生 | Synchronizer for electric automobile |
| CN107630947A (en) * | 2017-10-31 | 2018-01-26 | 江苏追日汽车同步器有限公司 | A kind of self-positioning automobile synchronizer |
| CN109648034A (en) * | 2018-12-20 | 2019-04-19 | 赣州群星机械有限公司 | A kind of synchronizer assembly rivets the positioning device of built-in lock pin |
| CN109648034B (en) * | 2018-12-20 | 2020-06-05 | 赣州群星机械有限公司 | Positioning device for riveting built-in lock pin of synchronizer assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130906 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130906 Address after: Shiyan City, Hubei province 442001 City Road No. 2 District zhangjiewan Patentee after: Dongfeng Commercial Vehicle Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic & Technological Development Zone, Hubei, Wuhan, China, No. 10 Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120215 |
|
| CX01 | Expiry of patent term |