CN202195039U - Novel spindle assembly structure with ball head and of double-countershaft gear box - Google Patents
Novel spindle assembly structure with ball head and of double-countershaft gear box Download PDFInfo
- Publication number
- CN202195039U CN202195039U CN2011202907458U CN201120290745U CN202195039U CN 202195039 U CN202195039 U CN 202195039U CN 2011202907458 U CN2011202907458 U CN 2011202907458U CN 201120290745 U CN201120290745 U CN 201120290745U CN 202195039 U CN202195039 U CN 202195039U
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- CN
- China
- Prior art keywords
- bulb
- ball head
- main shaft
- spindle
- planet carrier
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel spindle assembly structure with a ball head and of a double-countershaft gear box, which comprises a spindle, the ball head and a planetary frame assembly. Inner threads at the end of the spindle are connected with a ball head compression ring, a ball head base ring is arranged in the spindle on the inner side of the ball head compression ring, the ball head penetrates through the ball head compression ring to be arranged in the ball head base ring, and the other end of the ball head extends in an inner hole of the planetary frame assembly. The novel spindle assembly structure with the ball head and of the double-countershaft gear box has the advantages that an axial positioning structure of the ball head is an elastic support, the ball head flexibly rotate in the ball head base ring, spindle fluctuation is achieved under the condition of retaining spindle axial positioning, thereby effectively guaranteeing supporting rigidity of an output shaft, preventing whole vehicle factors from influencing normal operation in the gear box, and remarkably prolonging service life of an auxiliary box.
Description
Technical field
The utility model relates to a kind of main shaft dribbling head assembly structure of new type double countershaft gearbox.
Background technique
On U.S.'s two-pack shaft gearbox development history two kinds of structures are arranged, a kind of is that main shaft does not float, and early stage DANA company two-pack shaft gearbox main shaft does not float.Another kind is that main shaft floats, and main shaft does not float formerly, and Eaton's good fortune is reined in two-pack shaft gearbox main shaft and all floated.
It is to be fulcrum with the rear end that the characteristics of main shaft quick condition can be described as spindle centerline, and front end radial floating amount is a radius, and the past is to the rotating cone of aftershrinkage.Rear-end of spindle is connected transferring power with the output gear spline, and output gear is supported on the bearing inner race, and the quick condition of main shaft and odd-side are irrelevant.
Front-end of spindle floats, although do not float in the rear end, still has pivot angle.The rear-end of spindle pivot angle is very little, leans on the matching gap of main spindle multiple spline and fixed supported odd-side actuation gear internal spline to absorb.
Main shaft floats and is summarised as following 2 points:
(1) beginning of putting into gear: the structure upper sliding sleeve respectively keeps off the gear engagement increment with main shaft has 35 identical degree cone angles; When putting into gear for cone of friction is better fitted; Make suitable the floating of main shaft; Drive self-alignment between the sliding sleeve and the mainshaft gear conical surface, the big conical surface of 35 degree makes the phase friction surface play certain synchronous effect; Between sliding sleeve and main shaft, sideshake can make the process of putting into gear comparatively smooth between sliding sleeve and the mainshaft gear.
(2) put into gear after: because mainshaft gear is in unsteady working state, because sliding sleeve receives bigger moment of torsion and makes the bigger pressure of existence between the spline tooth side, combine closely in the spline tooth side after putting into gear; Because function of friction; The unsteady of mainshaft gear is delivered on the sliding sleeve, is delivered to then on the main shaft, and the sideshake of spline attachment portion can not absorb floating of mainshaft gear under the condition that frictional force can be born; Make not bearing radial force of main shaft, main shaft also should have certain floating.
It is the corrective measure that absorbs the mainshaft gear amount of floating Eaton's two-pack shaft gearbox improves the gearshift performance and puts into gear on DANA two-pack shaft gearbox basis after that main shaft floats, and is the development of the two floating axle gearboxes in Eton to DANA two-pack shaft gearbox.Main shaft floats and is more suitable for Eton two-pack axle 9 retainings and 10 retaining gearboxes, and its main-gear box floats through main shaft and mainly plays the effect of the centering of putting into gear owing to be the gearshift of slippage tooth cover.
In HW heavy type lorry transmission-gear box structure, the combination of main tank two-pack axle+odd-side planetary gear train is a kind of perfect scheme, and main tank two-pack axle construction is simple, and bearing capacity is strong; Odd-side planetary gear train compact structure, transmitting torque is big.Dual-gripper before and after the planetary gear train structure has effectively guaranteed the support stiffness of output shaft, has got rid of the influence of car load factor (for example transmission shaft is uneven) to gearbox inside proper functioning, the working life of obviously improving odd-side.
But dual-support structure before and after the odd-side planetary gear train adopts; Support before it and be positioned at the mesochite rear wall; Taken that rear-end of spindle is in the Support Position of housing in the traditional double countershaft gearbox, the main shaft axial positioning structure is axially fixed in the odd-side planet carrier assembly endoporus by bulb and realizes.Bulb is a rigid support at the axial positioning structure of odd-side, therefore, realizes under the main shaft axially locating situation that main shaft floats and just becomes a key and press for the problem of solution keeping.
Summary of the invention
Be technical deficiency more than solving, the utility model provides a kind of can keep the main shaft dribbling head assembly structure of the new type double countershaft gearbox that solves the unsteady problem of main shaft under the rear-end of spindle axially locating situation.
The utility model is realized through following measure:
The main shaft dribbling head assembly structure of a kind of new type double countershaft gearbox of the utility model comprises main shaft, ball
Head and planet carrier assembly, said spindle nose internal thread is connected with the bulb pressure ring, and the inboard main shaft set inside of said bulb pressure ring has the bulb seat ring, and said bulb passes the bulb pressure ring and places in the bulb seat ring, and the other end of bulb extends into the planet carrier assembly endoporus.
The above-mentioned bulb end that extends into the planet carrier assembly endoporus is with spacer, bulb bearing and fixing successively
Locking nut; Be provided with jump ring between the internal surface of said spacer and planet carrier assembly endoporus; Said bulb bearing is stuck between the internal surface and locking nut of planet carrier assembly endoporus, and main shaft and bulb are connected as one, and realizes the axially locating of main shaft through the axially locating bulb.Ball bearing, jump ring and locking nut limit moving axially of bulb in the planet carrier assembly endoporus.
In order to prevent the loosening of bulb pressure ring 1, above-mentioned main shaft end face evenly is provided with 4 and becomes 45 ° with axis
The deep gouge at angle, said bulb pressure ring outer are provided with the featheredge that is locked in the deep gouge.
The sphere of above-mentioned bulb race interior surface for matching with bulb guarantees that bulb rotates flexibly in the bulb seat ring.
The beneficial effect of the utility model is:
The axial positioning structure of bulb is an elastic support; Bulb rotates in the bulb seat ring flexibly; Under reservation main shaft axially locating situation, realized that main shaft floats; Effectively guaranteed the support stiffness of output shaft, got rid of of the influence of car load factor, obviously improved the working life of odd-side gearbox inside proper functioning.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Wherein, 1, bulb pressure ring; 2, bulb; 3, bulb seat ring; 4, main shaft; 5, planet carrier assembly; 6, spacer; 7, locking nut; 8, ball bearing; 9, jump ring; 10, deep gouge.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, main shaft 4 dribbling 2 assembly structure of the new type double countershaft gearbox of the utility model,
Comprise main shaft 4, bulb 2 and planet carrier assembly 5, main shaft 4 end internal threads are connected with bulb 2 pressure rings 1, are specially, and the outside thread of bulb 2 pressure rings 1 is screwed in the internal thread of main shaft 4.Bulb 2 pressure rings 1 inboard main shaft 4 set inside have bulb seat ring 3, and bulb 2 passes bulb 2 pressure rings 1 and places in the bulb seat ring 3, take suitable screw-down torque to guarantee that bulb 2 rotates flexibly in bulb seat ring 3.The other end of bulb 2 extends into planet carrier assembly 5 endoporus.
Prevent the loosening of bulb 2 pressure rings 1, above-mentioned main shaft 4 end faces evenly are provided with 4 and become 45 ° with axis
The deep gouge 10 at angle, said bulb 2 pressure rings 1 outer are provided with the featheredge that is locked in the deep gouge 10.The sphere of bulb seat ring 3 internal surfaces for matching with bulb 2 guarantees that bulb 2 rotates flexibly in bulb seat ring 3.
The foregoing description is said to be in order to specify this patent; Though describe through specific term in the literary composition; But can not limit the protection domain of this patent with this; The personage who is familiar with this technical field can change or revise it after the spirit of understanding this patent and principle and reach equivalent purpose, and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (4)
1. the main shaft of new type double countershaft gearbox dribbling head assembly structure; Comprise main shaft, bulb and planet carrier assembly; It is characterized in that: said spindle nose internal thread is connected with the bulb pressure ring; The inboard main shaft set inside of said bulb pressure ring has the bulb seat ring, and said bulb passes the bulb pressure ring and places in the bulb seat ring, and the other end of bulb extends into the planet carrier assembly endoporus.
2. according to the main shaft of the said new type double countershaft of claim 1 gearbox dribbling head assembly structure; It is characterized in that: the bulb end that extends into the planet carrier assembly endoporus is with spacer, bulb bearing and fixing locking nut successively; Be provided with jump ring between the internal surface of said spacer and planet carrier assembly endoporus, said bulb bearing is stuck between the internal surface and locking nut of planet carrier assembly endoporus.
3. according to the main shaft dribbling head assembly structure of the said new type double countershaft of claim 1 gearbox, it is characterized in that: said main shaft end face evenly is provided with 4 deep gouges that become 45 with axis, and said bulb pressure ring outer is provided with the featheredge that is locked in the deep gouge.
4. according to the main shaft dribbling head assembly structure of the said new type double countershaft of claim 1 gearbox, it is characterized in that: the sphere of said bulb race interior surface for matching with bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202907458U CN202195039U (en) | 2011-08-11 | 2011-08-11 | Novel spindle assembly structure with ball head and of double-countershaft gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202907458U CN202195039U (en) | 2011-08-11 | 2011-08-11 | Novel spindle assembly structure with ball head and of double-countershaft gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195039U true CN202195039U (en) | 2012-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202907458U Expired - Fee Related CN202195039U (en) | 2011-08-11 | 2011-08-11 | Novel spindle assembly structure with ball head and of double-countershaft gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808930A (en) * | 2012-08-08 | 2012-12-05 | 中国重汽集团济南动力有限公司 | Floating mechanism for spindle of transmission with double intermediate shafts |
| CN112879537A (en) * | 2021-01-13 | 2021-06-01 | 白银有色长通电线电缆有限责任公司 | Radial force balancing device of shaft |
-
2011
- 2011-08-11 CN CN2011202907458U patent/CN202195039U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808930A (en) * | 2012-08-08 | 2012-12-05 | 中国重汽集团济南动力有限公司 | Floating mechanism for spindle of transmission with double intermediate shafts |
| CN102808930B (en) * | 2012-08-08 | 2016-03-16 | 中国重汽集团济南动力有限公司 | Twin countershaft transmission main shaft relocation mechanism |
| CN112879537A (en) * | 2021-01-13 | 2021-06-01 | 白银有色长通电线电缆有限责任公司 | Radial force balancing device of shaft |
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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: 20120418 Termination date: 20140811 |
|
| EXPY | Termination of patent right or utility model |