CN202946572U - United locating structure of gear wheels and synchronizer - Google Patents
United locating structure of gear wheels and synchronizer Download PDFInfo
- Publication number
- CN202946572U CN202946572U CN 201220633922 CN201220633922U CN202946572U CN 202946572 U CN202946572 U CN 202946572U CN 201220633922 CN201220633922 CN 201220633922 CN 201220633922 U CN201220633922 U CN 201220633922U CN 202946572 U CN202946572 U CN 202946572U
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- China
- Prior art keywords
- synchronizer
- gear
- gear wheel
- locating
- spline
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Abstract
The utility model discloses a united locating structure of gear wheels and a synchronizer. The united locating structure comprises a shaft, a first gear wheel, a second gear wheel and the synchronizer, wherein the first gear wheel, the second gear wheel and the synchronizer are installed on the shaft. The first gear wheel and the second gear wheel are installed at two sides of the synchronizer, a first spline pad axially locating the first gear wheel and the synchronizer is installed between the first gear wheel and the synchronizer, and a second spline pad axially locating the second gear wheel and the synchronizer is installed between the second gear wheel and the synchronizer. Compared with the prior art, the united locating structure has the advantages that locating accuracy of the synchronizer is improved, and the tolerance accumulation contribution value of the locating component is reduced to 0.08 (locating is conducted through the spline pads) from 0.2 (locating is conducted through check rings); an external spline on a synchronizer combination gear ring, machined in a gear shaping mode, is changed into an internal spline machined in a gear broaching mode, and therefore machining efficiency of parts can be improved greatly; and centering performance of the center of a synchronizer gear sleeve and the center of a selector fork is improved, and one-sided abrasion of the synchronizer, caused by accumulated tolerance, is reduced.
Description
Technical field
The utility model relates to the speed changer technical field, particularly the co-located structure of a kind of gear and synchronizer.
Background technique
Synchronizer is a kind of important synchronizer in two jack shaft synchronizer speed variators.Synchronizer general stop ring that adopts on two axles is realized axial location-independent, and gear is to pad existing axially locating by spline.The axial dimension coherence of gear and synchronizer a little less than.
The dimensional chain of location-independent is comparatively simple, but has following shortcoming, 1), the stop ring of positioning synchronous device is because processing method limits, its tolerance is larger, and is unfavorable to the synchronizer location accuracy; 2), the time must open stop ring with Circlip tongs in assembling, torsional deformation happens occasionally, and is difficult for assembling; 3), synchronizer is the gear shaping processes in conjunction with gear ring external splines and gear inner spline, work efficiency is low.
The model utility content
The purpose of this utility model is to provide the co-located structure of a kind of gear and synchronizer, cancels the location stop ring of synchronizer, and synchromesh gear hub and gear are located with a kind of spline pad; To solve the problems of the technologies described above.
To achieve these goals, the utility model adopts following technological scheme:
The co-located structure of a kind of gear and synchronizer comprises axle and the first gear, the second gear, the synchronizer that are installed on axle; Described the first gear and the second gear are installed on synchronizer both sides; Be provided with the first spline pad that the first gear and synchronizer is carried out axially locating between described the first gear and synchronizer; Be provided with the second spline pad that the second gear and synchronizer is carried out axially locating between described the second gear and synchronizer.
The utility model further improves and is: synchronizer both sides first in conjunction with gear ring and second in conjunction with gear ring respectively by the external splines connection of internal spline with corresponding the first gear and the second gear.
The utility model further improves and is: described axle is provided with the hex key that prevents that the first spline pad and the second spline pad circumferencial direction from rotating.
With respect to prior art, the utlity model has following advantage:
(1) Location accuracy of synchronizer improves, and the tolerance stack contribution margin of locating element is from 0.2(stop ring location) be reduced to 0.08(spline pad location);
(2) change synchronizer into draw tooth internal spline in conjunction with the external splines of Gear Shaping on gear ring, can improve to a great extent the part work efficiency;
(3) centering at synchronizer gear sleeve center and engage a gear shift fork center improves, and has reduced the one-sided eccentric wear of synchronizer that cumulative limit brings.
Description of drawings
Fig. 1 is common gear and synchronizer location-independent schematic diagram;
Fig. 2 is structural representation of the present utility model.
Embodiment
Describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
Figure 1 shows that common gear and synchronizer position structure.Synchronizer 10 is realized location-independent by the first stop ring 7 and the second stop ring 9 on axle 21, the 3rd gear 1 and the 4th gear 5 are to realize independently axial and circumferential registration by the 3rd spline pad 6, the 4th spline pad 8 and hex key 22 on axle 21, and the effect of hex key 22 is to prevent that the 3rd spline pad 6 and the 4th spline pad 8 circumferencial directions from rotating.The 3rd of synchronizer 10 both sides connect with corresponding the 3rd gear 1 and the internal spline of the 4th gear 5 by external splines respectively in conjunction with gear ring 4 in conjunction with gear ring 2 and the 4th.Engage a gear shift fork 3 is in the tooth of synchronizer 10 cover, and speed changer is positioned at the center of neutral gear and shift fork 3 should be with the center superposition of synchronizer 10 time, and the friction pair of synchronizer 10 can eccentric wear.But can't grinding due to stop ring, the tolerance of the first stop ring 7 and the second stop ring 9 is larger, causes the axially locating tolerance of synchronizer 10 on axle 21 larger.The center of synchronizer 10 with respect to the center of shift fork 3 towards certain lateral deviation from the time, certain side friction pair of synchronizer 10 may produce friction, and the degree that produces friction between shift fork and synchronizer also can strengthen, these are all disadvantageous.
Shown in Figure 2 is structural representation of the present utility model.Synchronizer 20 is realized axially locating by the first spline pad 17 and the second spline pad 19 on axle 22, hex key 24 prevents that spline pad circumferencial direction from rotating.In addition, the first spline pad 17 and the second spline pad 19 have also carried out axially locating to the first gear 11 and the second gear 15 respectively.Be that synchronizer 20, gear 11 and gear 15 carry out co-located by the first spline pad 17 and the second spline pad 19.First of synchronizer 20 both sides connect with corresponding the first gear 11 and the external splines of the second gear 15 by internal spline respectively in conjunction with gear ring 14 in conjunction with gear ring 12 and second.Engage a gear shift fork 13 is in the tooth cover of synchronizer 20.Because the first spline pad 17 and the second spline pad 19 can adopt grinding, it is very little that tolerance can be controlled, thus shift fork 13 just can improve with respect to the centering of synchronizer 20, thereby reduce the eccentric wear of synchronizer 20.
On the other hand, than conventional construction shown in Figure 1, structure shown in Figure 2 has been cancelled two stop rings, can reduce costs.Simultaneously, first on synchronizer 20 has been designed to internal spline in conjunction with gear ring 12 and second in conjunction with gear ring 14, can adopt and draw tooth processing, than the 3rd having improved to a great extent work efficiency in conjunction with gear ring 2 and the 4th gear shaping in conjunction with gear ring 4 in Fig. 1.
Although the above is described the utility model by reference to the accompanying drawings; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, can also make a lot of forms, within these all belong to protection of the present utility model.
Claims (3)
1. the co-located structure of a gear and synchronizer, is characterized in that, comprises axle (22) and be installed on the first gear (11), the second gear (15), synchronizer (20) on axle (22); Described the first gear (11) and the second gear (15) are installed on synchronizer (20) both sides; Be provided with the first spline pad (17) that the first gear (11) and synchronizer (20) is carried out axially locating between described the first gear (11) and synchronizer (20); Be provided with the second spline pad (19) that the second gear (15) and synchronizer (20) is carried out axially locating between described the second gear (15) and synchronizer (20).
2. the co-located structure of gear according to claim 1 and synchronizer, it is characterized in that, first of synchronizer (20) both sides connect with corresponding the first gear (11) and the external splines of the second gear (15) by internal spline respectively in conjunction with gear ring (14) in conjunction with gear ring (12) and second.
3. the co-located structure of gear according to claim 1 and synchronizer, is characterized in that, described axle (22) is provided with the hex key (24) that prevents that the first spline pad (17) and the second spline pad (19) circumferencial direction from rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633922 CN202946572U (en) | 2012-11-26 | 2012-11-26 | United locating structure of gear wheels and synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220633922 CN202946572U (en) | 2012-11-26 | 2012-11-26 | United locating structure of gear wheels and synchronizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946572U true CN202946572U (en) | 2013-05-22 |
Family
ID=48422277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220633922 Expired - Lifetime CN202946572U (en) | 2012-11-26 | 2012-11-26 | United locating structure of gear wheels and synchronizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946572U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758887A (en) * | 2014-01-18 | 2014-04-30 | 赵良红 | Built-in clutch and gear shifting control mechanism thereof |
| CN104455066B (en) * | 2013-09-25 | 2017-02-08 | 中国重汽集团济南动力有限公司 | Locating structure of dual-countershaft heavy gearbox synchronizer |
| WO2022257418A1 (en) * | 2021-07-30 | 2022-12-15 | 浙江联宜电机有限公司 | Double-clutch reduction gearbox |
-
2012
- 2012-11-26 CN CN 201220633922 patent/CN202946572U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455066B (en) * | 2013-09-25 | 2017-02-08 | 中国重汽集团济南动力有限公司 | Locating structure of dual-countershaft heavy gearbox synchronizer |
| CN103758887A (en) * | 2014-01-18 | 2014-04-30 | 赵良红 | Built-in clutch and gear shifting control mechanism thereof |
| CN103758887B (en) * | 2014-01-18 | 2016-01-06 | 赵良红 | Built-in synchronizer and selector device thereof |
| WO2022257418A1 (en) * | 2021-07-30 | 2022-12-15 | 浙江联宜电机有限公司 | Double-clutch reduction gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BAOJI FAST GEAR Co.,Ltd. Assignor: SHAANXI FAST GEAR Co.,Ltd. Contract record no.: 2014610000073 Denomination of utility model: United locating structure of gear wheels and synchronizer Granted publication date: 20130522 License type: Exclusive License Record date: 20140423 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |