CN202597649U - Auxiliary box synchronizer for gearbox - Google Patents
Auxiliary box synchronizer for gearbox Download PDFInfo
- Publication number
- CN202597649U CN202597649U CN 201220063357 CN201220063357U CN202597649U CN 202597649 U CN202597649 U CN 202597649U CN 201220063357 CN201220063357 CN 201220063357 CN 201220063357 U CN201220063357 U CN 201220063357U CN 202597649 U CN202597649 U CN 202597649U
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- low
- grade
- synchronizer
- synchronously
- gear
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Abstract
The utility model provides an auxiliary box synchronizer for a gearbox. The synchronizer comprises a synchronizer and a low-gear toothed wheel disposed on a main shaft, the gearbox synchronizer also comprises a low gear synchronizing conical disc disposed on the main shaft, and the low gear synchronizing conical disc and the synchronizer are respectively disposed at the two sides of the low-gear toothed wheel. The auxiliary box synchronizer for the gearbox is characterized in that, the synchronizer is disposed at one side of the a low-gear toothed wheel, the low gear synchronizing conical disc is disposed at the other side, the external friction conical surface of the low gear synchronizing conical disc and the internal friction conical surface of the low-gear toothed wheel are in mutual friction in synchronization, generating friction force.
Description
Technical field
The utility model relates to the automobile gearbox field, relates in particular to a kind of gearbox odd-side synchronizer.
Background technique
The gearbox of major-minor box structure has obtained widely using on heavy-duty car, and its odd-side is provided with synchronizer, and the odd-side synchronizer adopts lockpin-type more, on the structural configuration between high-grade gear and low-grade gear.At present, all on the market odd-side pin-type synchronizer top grade and low grades all have only a cone of friction.High-grade conical ring has an interior cone of friction, matches with high-grade actuation gear male cone (strobilus masculinus), and high-grade synchronously when being used for shift to a higher gear, low-grade conical ring has an external friction conical surface, matches with inner conical surface on the low-grade reduction gear, and is low-grade synchronously when being used for drag-down.
The mechanical structure of gearbox is synchronized rotary inertia when being synchronized rotary inertia much larger than shift to a higher gear when having determined drag-down, and therefore, drag-down compares high-grade much longer required lock in time.And the odd-side speed ratio is big more, and this situation is obvious more.But as far as the driver, gearshift is short more good more lock in time, and oversize driver of time is difficult to accept first, the lock in time of second shifting gears the oversize traffic safety that influences.Odd-side low-grade lock in time of a long persistent ailment that has become the heavy vehicle gearbox, the effort that each producer pays is for many years all wanted to address this problem, but the solution that never finds.
On the other hand, along with the development in market, many gear heavy duty gearbox overall ratios are increasing; The odd-side speed ratio is also increasing, and odd-side inertia is increasing, and this type of gearbox odd-side is more extended low-grade lock in time; Situation is more and more serious, presses for the solution of novelty.
The model utility content
In order to solve existing technical problem in the background technique; The utility model provides a kind of gearbox odd-side synchronizer; Through synchronizer being set in low-grade gear one side; Opposite side is provided with low-grade awl dish synchronously, and the interior cone of friction on the external friction conical surface of low-grade awl dish synchronously and the low-grade gear is in synchronous time mutual friction mutually, generation frictional force.
The technical solution of the utility model is: gearbox odd-side synchronizer; Said synchronizer comprises the synchronizer that is arranged on the main shaft, low-grade gear; Its special way is: described gearbox synchronizer also comprises the low-grade awl dish synchronously that is arranged on the main shaft, and said low grade awl dish and synchronizer synchronously is separately positioned on the both sides of low-grade gear.
Above-mentioned low-grade gear near low grade synchronously awl coil a side and be provided with interior cone of friction, said low grade awl dish synchronously is provided with the external friction conical surface, the interior cone of friction of said low-grade gear is adaptive with the external friction conical surface on the low-grade awl dish synchronously.
Above-mentioned low grade is fixedly connected between awl dish and the main shaft synchronously.
Above-mentioned low grade is connected through the connecting key key between awl dish and the main shaft synchronously.
Above-mentioned low-grade gear, low-grade awl dish are synchronously located through spline pad or jump ring near a side of synchronizer.
The opposite side of above-mentioned low-grade awl dish synchronously is through main shaft bearing inner ring location.
Above-mentioned low grade is Spielpassung between awl dish and the low-grade gear synchronously.
The keyway of connecting key is set on the above-mentioned main shaft.
The gearbox odd-side synchronizer of the utility model is mainly used in odd-side, is very suitable for odd-side large speed ratio, low grade long situation lock in time, even but the odd-side speed ratio is not long little, low-grade lock in time, also can use this programme;
The opposite side of the utility model synchromesh gear has increased a friction cone dish; Make full use of the confined space at low-grade gear rear portion,, thereby increased synchronous frictional force through the increase attrition surface; Improve the gearbox net synchronization capability, broken traditional mindset that adds cone of friction in a side;
Compare with existing technology, only increased a friction cone dish and a short flat key, the change of other parts is very little, so the cost increase is very little.
Description of drawings
Fig. 1 is the existing technology structural representation of the utility model;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the location schematic representation of the low and middle-grade synchronous awl dishes of the utility model;
Embodiment
Referring to Fig. 1, the gearbox odd-side synchronizer of the utility model is made up of main parts size such as the synchronizer that comprises high-grade conical ring assembly 1, sliding gear collar 2, low-grade conical ring 3, low-grade awl dish 4 synchronously, short flat key 5, main shaft 6, high-grade gear 7 and low-grade gears 8.Low-grade awl dish 4 synchronously is connected through short flat key 5 and output main shaft, and both rotating speeds are identical.Low-grade conical ring 3 and low-grade gear 8 are adaptive; Adaptive mode is that the front end of low-grade gear 8 is provided with inner conical surface; Low-grade conical ring 3 is adaptive through male cone (strobilus masculinus) and low-grade gear 8 on it, and the rear end of low-grade gear 8 also is provided with cone of friction, and low-grade awl dish 4 synchronously is conical surfaces with the surface of contact of low-grade gear 8.Be connected through lacking flat key 5 between low-grade awl dish 4 synchronously and the main shaft 6, ways of connecting also can adopt round key or square key.Reserve axial clearance between low-grade awl dish 4 synchronously and the low-grade gear 8; Purpose is that low-grade gear 8 can produce displacement to the direction of the synchronous conical ring 4 of low grade; Make low-grade gear 8 and low-grade conical ring 3 and low-grade awl dish 4 synchronously can both produce friction, short flat key 5 is arranged in the keyway on the main shaft 6 or short flat key 5 is connected through spline with main shaft.Spline pad 9 is arranged on low-grade awl synchronously and coils 4 left sides, and spline pad 9 also can be a jump ring, and low-grade awl synchronously coils 4 right sides through main shaft bearing inner ring 11 location, referring to Fig. 3.
The embodiment of the utility model is: when low grade was switched, the sliding gear collar 2 of synchronizer moved right from top grade, and at first, the top grade of sliding gear collar 2 combines tooth and high-grade gear 7 to throw off, and accomplishes the high-grade process of plucking of the first step, arrives neutral gear position; Second step was low-grade synchronizing process; Two conical surfaces of low-grade gear 8 rub with low-grade conical ring 3 and low-grade two cones of friction of awl dish 4 synchronously respectively mutually; Is zero until low-grade gear 8 with output main shaft 6, low-grade conical ring 3, the low-grade speed discrepancy of awl dish 4 synchronously, and synchronizing process finishes; In the 3rd step, sliding gear collar 2 continues to move right, and its low-grade tooth that combines combines shift into low gear with low-grade gear 8.
Claims (8)
1. gearbox odd-side synchronizer; Said synchronizer comprises the synchronizer that is arranged on the main shaft, low-grade gear; It is characterized in that: described gearbox synchronizer also comprises the low-grade awl dish synchronously that is arranged on the main shaft, and said low grade awl dish and synchronizer synchronously is separately positioned on the both sides of low-grade gear.
2. gearbox odd-side synchronizer according to claim 1; It is characterized in that: said low-grade gear near low grade synchronously awl coil a side and be provided with interior cone of friction; Said low grade awl dish synchronously is provided with the external friction conical surface, and the interior cone of friction of said low-grade gear is adaptive with the external friction conical surface on the low-grade awl dish synchronously.
3. gearbox odd-side synchronizer according to claim 1 and 2 is characterized in that: said low grade is fixedly connected between awl dish and the main shaft synchronously.
4. gearbox odd-side synchronizer according to claim 3 is characterized in that: said low grade is connected through the connecting key key between awl dish and the main shaft synchronously.
5. gearbox odd-side synchronizer according to claim 4 is characterized in that: said low-grade gear, low-grade awl dish are synchronously located through spline pad or jump ring near a side of synchronizer.
6. gearbox odd-side synchronizer according to claim 5 is characterized in that: the described low grade opposite side of awl dish is synchronously located through the main shaft bearing inner ring.
7. gearbox odd-side synchronizer according to claim 6 is characterized in that: said low grade is Spielpassung between awl dish and the low-grade gear synchronously.
8. gearbox odd-side synchronizer according to claim 7 is characterized in that: the keyway that connecting key is set on the said main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220063357 CN202597649U (en) | 2012-02-24 | 2012-02-24 | Auxiliary box synchronizer for gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220063357 CN202597649U (en) | 2012-02-24 | 2012-02-24 | Auxiliary box synchronizer for gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597649U true CN202597649U (en) | 2012-12-12 |
Family
ID=47315191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220063357 Expired - Fee Related CN202597649U (en) | 2012-02-24 | 2012-02-24 | Auxiliary box synchronizer for gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537284A (en) * | 2012-02-24 | 2012-07-04 | 陕西法士特齿轮有限责任公司 | Auxiliary box synchronizer of speed changing box |
| CN106763277A (en) * | 2016-12-15 | 2017-05-31 | 陕西法士特汽车传动集团有限责任公司 | Lockpin-type synchronizer having three pyramidal faces |
-
2012
- 2012-02-24 CN CN 201220063357 patent/CN202597649U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537284A (en) * | 2012-02-24 | 2012-07-04 | 陕西法士特齿轮有限责任公司 | Auxiliary box synchronizer of speed changing box |
| CN106763277A (en) * | 2016-12-15 | 2017-05-31 | 陕西法士特汽车传动集团有限责任公司 | Lockpin-type synchronizer having three pyramidal faces |
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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: 20121212 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |