CN203717712U - Stop mechanism for synchronizer of gearbox, related synchronizer and vehicle - Google Patents
Stop mechanism for synchronizer of gearbox, related synchronizer and vehicle Download PDFInfo
- Publication number
- CN203717712U CN203717712U CN201420127955.9U CN201420127955U CN203717712U CN 203717712 U CN203717712 U CN 203717712U CN 201420127955 U CN201420127955 U CN 201420127955U CN 203717712 U CN203717712 U CN 203717712U
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- Prior art keywords
- gear
- stop mechanism
- spline
- live axle
- spline housing
- 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 - Lifetime
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- 230000013011 mating Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to a stop mechanism for a synchronizer of a gearbox. The synchronizer comprises a first gear and a second gear, wherein the first gear and the second gear are opposite to each other and are separately arranged on a driving shaft in a sleeved mode. The portion, between the first gear and the second gear, of the driving shaft is sleeved with a splined hub. The splined hub can carry out translational movement in the axial direction of the driving shaft so as to be meshed with a first spline on the first gear or a second spline on the second gear, and therefore the first gear or the second gear can rotate along with the driving shaft. The stop mechanism is characterized in that the stop mechanism is arranged on the portion, making contact with the driving shaft, of the splined hub, and the stop mechanism is provided with a structure which stops the translational movement of the splined hub in the axial direction when the splined hub is meshed with either the first spline or the second spline. According to the stop mechanism, the position keeping of the splined hub is improved, so that a machine operates more stably. The utility model further relates to the synchronizer of the gearbox with the stop mechanism and a vehicle with the stop mechanism.
Description
Technical field
The utility model relates to machine, especially engineering machinery, for example wheel loader.More specifically, the utility model relates to the synchronizer of machine speed changer.
Background technique
Synchronizer is such as the component parts in the gearbox of the machine of vehicle, and it is for making when the gear shift output shaft of gearbox and input shaft synchronous, to realize gear shift stably.
Chinese utility model patent CN202768748U discloses a kind of synchronizer, this synchronizer comprises axle, is fixed on the splined hub on this axle and is sleeved on the clutch collar in this splined hub, this synchronizer also comprises the left and right gear of the both sides that are arranged on described splined hub, described clutch collar can engage with left and right spline ring and the left and right lock ring of described left and right gear under the effect of shift fork, to realize gear shift.
But, the problem that known synchronizer exists is, due to the larger gap (this gap may be caused by a variety of causes) of spline structure, clutch collar likely moves and throws off with the spline of respective gears in the running of machine, thereby causes the unstable of machine gear.
Model utility content
The stop mechanism that the utility model is intended to by a kind of synchronizer is provided solves above-mentioned the problems of the prior art.
On the one hand, the utility model provides a kind of stop mechanism of the synchronizer for gearbox, this synchronizer comprises toward each other and is sleeved on dividually the first gear and the second gear on live axle, between described the first gear and the second gear, on this live axle, be set with spline housing, this spline housing can be along the axial direction translation of live axle in case with the first gear on the first spline or with the second gear on the second spline engagement, make thus this first gear or this second gear rotate together with this live axle, it is characterized in that, this stop mechanism is arranged on the position that described spline housing contacts with described live axle, and there is the structure that has stoped the translation vertically of this spline housing when described spline housing when in the first spline and the second spline one engages.Like this, this stop mechanism has at spline housing and when with the position of the first or second spline engagement, has worked and the structure that stops in the axial direction or fix this spline housing.
This stop mechanism improved the position of spline housing kept in the case of significantly not changing the structure of synchronizer parts, solved spline housing may with gear on the spline problem of throwing off, make thus the operation of machine more stable.
Stop mechanism of the present utility model has following favourable feature:
-this stop mechanism comprises the blocked part that can stretch out or regain with respect to the mating face between spline housing and live axle, and this blocked part is configured as with the corresponding surface on spline housing and fits, to stop the translation of this spline;
The blocked part of-this stop mechanism and the correspondence of this spline housing surface are the inclined-plane of shape complementarity;
-described live axle has the hole vertical with the axial direction of this live axle, and described stop mechanism comprises the spring being placed in this hole and the stopper posts being promoted to outside by this spring, and described blocked part is formed on the outer end side surface place of this stopper posts;
-described hole is the through hole that runs through described live axle, and described stop mechanism comprises two stopper posts that are placed in these through hole two ends.
On the other hand, the utility model provides a kind of synchronizer of gearbox, and this synchronizer comprises stop mechanism as above.
On the one hand, the utility model relates to a kind of vehicle again, and this vehicle comprises synchronizer as above.Preferably, this vehicle is engineering machinery, especially wheel loader.
Brief description of the drawings
Describe with reference to the accompanying drawings preferred embodiment of the present utility model in detail, in the accompanying drawings:
Fig. 1 illustrates the example machine that is suitable for using stop mechanism of the present utility model;
Fig. 2 illustrates the synchronizer with stop mechanism of the present utility model with sectional view, wherein spline housing does not engage the spline of any gear;
Fig. 3 illustrates the synchronizer with stop mechanism of the present utility model with sectional view, wherein the spline engagement of spline housing and the second gear; And
Fig. 4 is the partial enlarged drawing of Fig. 3, is wherein shown specifically coordinating of stop mechanism and spline housing.
Embodiment
Fig. 1 illustrates the example machine 100 that can use stop mechanism of the present utility model.This machine is for example engineering machinery, especially wheel loader.The gearbox 120 that this machine 100 can comprise motor 110 and be connected with the output terminal of this motor 110, this gearbox 120 can comprise synchronizer.Machine 100 can be any machine of carrying out the operation in the fields such as industry, agricultural, mining.
Referring to Fig. 2, the sectional view of the device of example synchronization shown in it 130, this synchronizer 130 can comprise the first gear 12 and the second gear 22, described the first and second gears 12 can be sleeved on this live axle 10 in the mode separating on rotating with live axle 10 by for example sliding bearing with 22, and wherein statement " separates on rotating with live axle 10 " and refers to that gear does not rotate along with the rotation of live axle 10.As shown in Figure 2, the first gear 12 and the second gear 22 can separate by jut or the spline part 41 of this live axle 10 location of turning up the soil toward each other and for example on live axle 10.On the end sections respect to one another of described the first gear 12 and the second gear 22, can be formed with respectively the first spline 13 and the second spline 23.
As can be as seen from Figure 2, synchronizer 130 can comprise the spline housing 31 being positioned between the first gear 12 and the second gear 22.This spline housing 31 can be sleeved on live axle 10, and engages with the radially outstanding spline part 41 of this live axle 10.In a known way, this spline housing 31 is mounted to and can be operated by shift fork 61 by user and along the axial direction translation of live axle 10, to engage with the first spline 13 of the first gear 12 or the second spline 23 of the second gear 22, make thus the first gear 12 or the second gear 22 rotate together with this live axle 10.
According to the utility model, synchronizer 130 comprises the stop mechanism 50 of the described spline part 41 in the position that is arranged on described spline housing 31 and contacts with described live axle 10-be-locate, and this stop mechanism 50 can be configured to stop this spline housing 31 translation vertically when in the first spline 13 and the second spline 23 one engages when spline housing 31.
Especially, this stop mechanism 50 can comprise the blocked part that can stretch out or regain with respect to the mating face between spline housing 31 and live axle 10, and this blocked part is preferably shaped to the corresponding surface laminating of spline housing 31 to stop the axial translation of this spline housing 31.
In the preferred embodiment shown in Fig. 3 and Fig. 4, the blocked part of described stop mechanism 50 can be by stretching out and the inclined-plane regained forms with respect to the radially-outer surface of live axle 10, and this inclined-plane can have and the shape that is formed on inclined-plane 32 complementations in the side direction portion of spline housing 31.
Still, referring to Fig. 4, according to the preferred embodiment shown in figure, described stop mechanism 50 can comprise the stopper posts 53 that can stretch out or regain with respect to the radially-outer surface of live axle 10.For this reason, this stopper posts 53 can be placed in that spline part 41 places of live axle 10 form with the axial direction of this live axle 10 vertically-that is along in the hole 51 of the radial direction-extension of this live axle 10, and outwards promoted along described radial direction by the spring 52 being placed in same hole 51.Like this, when spline part 41 places of spline housing 31 in live axle 10 and while not engaging the spline of any gear, this stopper posts 53 is pushed and is retracted in described hole 51 by spline housing 31, or slightly stretch out from described hole 51 in case with corresponding recess spline housing 31-if any-engage that this spline housing 31 is held in place better; In the time that spline housing 31 moves joint the first spline 13 of the first gear 12 or the second spline 23 of the second gear 22 by translation, this stopper posts 53 is radially released by spring 52, thereby against the side direction portion of spline housing 31 to this spline housing 31 is remained on and the position of the spline engagement of gear.
As previously described, the radial outer end portion of this stopper posts 53 may be constructed to inclined-plane, to can be conducive at spline housing 31 on the one hand the movement of this spline housing 31 during to engaging position translation, can fit and this spline housing 31 is held in place with the backstop inclined-plane 32 of this spline housing behind engaging position at spline housing 31 on the other hand.
According to the preferred embodiment shown in Fig. 4, described hole 51 can be the through hole that radially runs through live axle 10, and can lay respectively a stopper posts 53 at the radially two ends of this through hole that is two stopper posts 53 are set altogether.
In the embodiment shown in fig. 4, two stopper posts 53 share springs 52, but, also it is contemplated that and a spring 52 is set respectively for each backstop 53.In this case, as the replacement scheme of through hole 51, it is contemplated that in live axle 10 and form along two relative disconnected blind holes of diameter, and in each blind hole, lay a stopper posts 53 and a spring 52.
According to the unshowned mode of execution of one, can in live axle 10, only form a blind hole, and in this blind hole, lay a stopper posts 53 and a spring being associated 52.
In addition, other extended and retract members, the combination that for example elastomeric post comes the rigidity stopper posts 53 shown in alternate figures and spring 52 can be set in hole 52.
Certainly, stop mechanism of the present utility model is not limited to the embodiment shown in figure.For example, it is contemplated that the form that the blocked part of stop mechanism is configured to flexible or flexible jut, this jut is arranged on spline part 41 surfaces of live axle 10, and can work as spline housing 31 from the translation vertically of described spline part 41 to stretch so that against the side direction portion of this spline housing 31 the first or second spline of engagement the first or second gear, thereby this spline housing 31 is remained on to its engaging position.
As the replacement scheme of embodiment shown in figure, it is contemplated that and on spline housing 31, arrange parts extended and that retract, for example flexible or flexible stopper posts or projection, and these parts are engaged with the counterpart, for example recess or the groove that are arranged on live axle 10 in the time that spline housing 31 moves to the position of the first or second spline 13,23 of engagement the first or second gear, to stop this spline housing 31-in the situation that-translation again that for example do not apply external force by shift fork 61.
Industrial usability
Synchronizer 130 work with stop mechanism 50 of the present utility model are as follows:
When spline housing 31 is not during with the spline engagement of any gear, live axle 10 drives the spline housing 31 engaging with this spline part to rotate by the spline part 41 on this live axle in rotating;
In the time of needs first gear engagement position, make spline housing 31 to right translation so that the first spline 13 on engagement the first gear 12 by shift fork 61, make thus the first gear 12 rotate together with live axle 10, to realize the first gear, wherein, when spline housing 31 moves to while engaging with the first spline 13, fit to this spline housing 31 is remained on to its engaging position in stopper posts 53 inclined-planes, right side of stop mechanism 50 and the backstop inclined-plane, left side 32 of spline housing 31;
In the time that needs engage the second gear, make spline housing 31 to left so that the second spline 23 on engagement the second gear 22 by shift fork 61, make thus the second gear 22 rotate together with live axle 10, to realize the second gear, wherein, when spline housing 31 moves to while engaging with the second spline 23, fit to this spline housing 31 is remained on to its engaging position in the backstop inclined-plane, right side 32 of the inclined-plane, left side of the stopper posts 53 of stop mechanism 50 and spline housing 31.
The utility model is not limited to embodiment described herein, but comprises any amendment and the modification that can be expected according to present disclosure by those skilled in the art.
Claims (9)
1. the stop mechanism for the synchronizer of gearbox, this synchronizer comprises toward each other and is sleeved on dividually the first gear and the second gear on live axle, between described the first gear and the second gear, on this live axle, be set with spline housing, this spline housing can be along the axial direction translation of live axle in case with the first gear on the first spline or with the second gear on the second spline engagement, make thus this first gear or this second gear rotate together with this live axle, it is characterized in that, this stop mechanism is arranged on the position that described spline housing contacts with described live axle, and there is the structure that has stoped the translation vertically of this spline housing when described spline housing when in the first spline and the second spline one engages.
2. stop mechanism according to claim 1, it is characterized in that, this stop mechanism comprises the blocked part that can stretch out or regain with respect to the mating face between spline housing and live axle, and this blocked part is configured as with the corresponding surface laminating on spline housing to stop the axial translation of this spline housing.
3. stop mechanism according to claim 2, is characterized in that, the blocked part of this stop mechanism and the correspondence of this spline housing surface are the inclined-plane of shape complementarity.
4. according to the stop mechanism described in claim 2 or 3, it is characterized in that, described live axle has the hole vertical with the axial direction of this live axle, described stop mechanism comprises the spring being placed in this hole and the stopper posts being promoted to outside by this spring, and described blocked part is formed on the outer end side surface place of this stopper posts.
5. stop mechanism according to claim 4, is characterized in that, described hole is the through hole that runs through described live axle, and described stop mechanism comprises two stopper posts that are placed in these through hole two ends.
6. a synchronizer for gearbox, is characterized in that, this synchronizer comprises according to the stop mechanism one of aforementioned claim Suo Shu.
7. a vehicle, is characterized in that, this vehicle comprises synchronizer according to claim 6.
8. vehicle according to claim 7, is characterized in that, this vehicle is engineering machinery.
9. vehicle according to claim 8, is characterized in that, this vehicle is wheel loader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127955.9U CN203717712U (en) | 2014-03-20 | 2014-03-20 | Stop mechanism for synchronizer of gearbox, related synchronizer and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127955.9U CN203717712U (en) | 2014-03-20 | 2014-03-20 | Stop mechanism for synchronizer of gearbox, related synchronizer and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717712U true CN203717712U (en) | 2014-07-16 |
Family
ID=51156867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420127955.9U Expired - Lifetime CN203717712U (en) | 2014-03-20 | 2014-03-20 | Stop mechanism for synchronizer of gearbox, related synchronizer and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717712U (en) |
-
2014
- 2014-03-20 CN CN201420127955.9U patent/CN203717712U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |