CN102537284A - Auxiliary box synchronizer of speed changing box - Google Patents
Auxiliary box synchronizer of speed changing box Download PDFInfo
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- CN102537284A CN102537284A CN2012100440159A CN201210044015A CN102537284A CN 102537284 A CN102537284 A CN 102537284A CN 2012100440159 A CN2012100440159 A CN 2012100440159A CN 201210044015 A CN201210044015 A CN 201210044015A CN 102537284 A CN102537284 A CN 102537284A
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Abstract
The invention discloses an auxiliary box synchronizer of a speed changing box, wherein the synchronizer comprises a synchronization device arranged on a main shaft, a low-grade gear and a low-grade synchronous conical disk arranged on the main shaft, wherein the low-grade synchronous conical disk and the synchronization device are respectively arranged at two sides of the low-grade gear. According to the auxiliary box synchronizer of the speed changing box provided by the invention, through the arrangement of the synchronization device at one side of the low-grade gear and the low-grade synchronous conical disk at the other side of the low-grade gear, an outer friction conical surface of the low-grade synchronous conical disk and an inner friction conical surface on the low-grade gear are mutually frictional in synchronization, and friction force is generated.
Description
Technical field
The present invention relates to the automobile gearbox field, relate 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.
Summary of the invention
In order to solve existing technical problem in the background technique; The present invention proposes 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.
Technical solution of the present invention 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 said low grade interior cone of friction of awl dish synchronously 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 or spline connects.
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.
Gearbox odd-side synchronizer of the present invention 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 synchromesh gear of the present invention 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 an existing technology structural representation of the present invention;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the location schematic representation of the low and middle-grade synchronous awl dishes of the present invention;
Embodiment
Referring to Fig. 1, gearbox odd-side synchronizer of the present invention 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.
Embodiment of the present invention 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 said low grade interior cone of friction of awl dish synchronously 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 or spline connects.
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 |
|---|---|---|---|
| CN2012100440159A CN102537284A (en) | 2012-02-24 | 2012-02-24 | Auxiliary box synchronizer of speed changing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100440159A CN102537284A (en) | 2012-02-24 | 2012-02-24 | Auxiliary box synchronizer of speed changing box |
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| Publication Number | Publication Date |
|---|---|
| CN102537284A true CN102537284A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100440159A Pending CN102537284A (en) | 2012-02-24 | 2012-02-24 | Auxiliary box synchronizer of speed changing box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994212A (en) * | 2014-05-13 | 2014-08-20 | 陕西法士特齿轮有限责任公司 | System and method for monitoring range gear transmission gear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188194A (en) * | 1998-02-20 | 1998-07-22 | 李蕴藻 | Load gear driving conical surface friction speed variator |
| US20070289835A1 (en) * | 2006-06-20 | 2007-12-20 | Aisin Ai Co., Ltd. | Synchronizer mechanism for transmission |
| US20080081726A1 (en) * | 2006-09-30 | 2008-04-03 | Aisin Ai Co., Ltd | Transfer device having planetary gear-type speed change mechanism |
| EP1936223A2 (en) * | 2006-12-22 | 2008-06-25 | Sulzer Euroflamm Germany GmbH | Synchronizer ring |
| CN101956810A (en) * | 2010-10-19 | 2011-01-26 | 泰州市海博汽车科技有限公司 | Automobile synchronizer capable of reducing shifting power |
| CN202597649U (en) * | 2012-02-24 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Auxiliary box synchronizer for gearbox |
-
2012
- 2012-02-24 CN CN2012100440159A patent/CN102537284A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188194A (en) * | 1998-02-20 | 1998-07-22 | 李蕴藻 | Load gear driving conical surface friction speed variator |
| US20070289835A1 (en) * | 2006-06-20 | 2007-12-20 | Aisin Ai Co., Ltd. | Synchronizer mechanism for transmission |
| US20080081726A1 (en) * | 2006-09-30 | 2008-04-03 | Aisin Ai Co., Ltd | Transfer device having planetary gear-type speed change mechanism |
| EP1936223A2 (en) * | 2006-12-22 | 2008-06-25 | Sulzer Euroflamm Germany GmbH | Synchronizer ring |
| CN101956810A (en) * | 2010-10-19 | 2011-01-26 | 泰州市海博汽车科技有限公司 | Automobile synchronizer capable of reducing shifting power |
| CN202597649U (en) * | 2012-02-24 | 2012-12-12 | 陕西法士特齿轮有限责任公司 | Auxiliary box synchronizer for gearbox |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994212A (en) * | 2014-05-13 | 2014-08-20 | 陕西法士特齿轮有限责任公司 | System and method for monitoring range gear transmission gear |
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Application publication date: 20120704 |