CN203836091U - Gear shifting gearbox - Google Patents
Gear shifting gearbox Download PDFInfo
- Publication number
- CN203836091U CN203836091U CN201420022620.0U CN201420022620U CN203836091U CN 203836091 U CN203836091 U CN 203836091U CN 201420022620 U CN201420022620 U CN 201420022620U CN 203836091 U CN203836091 U CN 203836091U
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- Prior art keywords
- gear
- driving wheel
- gear train
- shaft
- shifting fork
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- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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Abstract
The utility model discloses a gear shifting gearbox. The gear shifting gearbox comprises an input shaft, an output shaft and a gear set provided with a driving gear and a driven gear meshed with the driving gear. The driving gear of the gear set is arranged on the input shaft, the driven gear of the gear set is arranged on a gear shaft, and the output shaft is provided with a first gear meshed with the gear shaft. The gear shifting gearbox further comprises at least two shifting fork mechanism assemblies and at least three gear sets different in speed ratio. Driving wheels of the at least three gear sets are arranged in the axial extending direction of the input shaft, and driven wheels of the gear sets are arranged in the axial extending direction of the gear shaft. One shifting fork mechanism assembly is arranged between every two adjacent driving wheels, and at least one shifting fork mechanism assembly can be meshed with the driving wheels of the two adjacent gear sets. Different speed ratios can be switched through the gear shifting gearbox, and the changing range of the speed ratios is enlarged.
Description
Technical field
The utility model relates to industrial gearbox technical field, particularly relates to a kind of power shift gear case.
Background technique
In the process of automobile making and production, need automobile associated components to detect, in order to meet the realize demand of car test bench under different rotating speeds, power shift gear case need to be set, to realize the conversion between different rotating speeds.
In existing car test bench, power shift gear case comprises input shaft and output shaft and two shifting fork mechanism assemblies, two gear trains that speed ratio is different, two shifting fork mechanism assemblies are meshed with two driving gears respectively, by controlling shifting fork mechanism assembly, can guarantee that different gear trains rotates, and then can make output shaft export different rotating speeds.
But, because power shift gear case can only be exported two different rotating speeds, when needs are tested under various rotating speed, due to the restriction of the output speed of power shift gear case, and cause experiment effect undesirable.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of power shift gear case, can realize the conversion of car test bench between different speed ratios, expands the excursion of speed ratio.
The utility model provides a kind of power shift gear case, comprise input shaft, output shaft and be provided with driving wheel and the gear train of the follower that is meshed with driving wheel, the driving wheel of gear train is arranged at input shaft, the follower of described gear train is arranged at gear shaft, output shaft is provided with the first gear being meshed with described gear shaft, also comprise all not identical gear trains of at least two shifting fork mechanism assemblies and at least three speed ratios, the driving wheel of at least three described gear trains extends axially direction setting along described input shaft, the follower of described gear train extends axially direction setting along described gear shaft, described shifting fork mechanism assembly is arranged between adjacent described driving wheel, and wherein described at least one, shifting fork mechanism assembly can be meshed with the driving wheel of adjacent two described gear trains.
Preferably, comprise the first gear train, the second gear train and the 3rd gear train, between the driving wheel of the driving wheel of described the first gear train and described the second gear train, be provided with the first shifting fork mechanism assembly, described the first shifting fork mechanism can be meshed with the driving wheel of described the first gear train; Between the driving wheel of the driving wheel of described the second gear train and described the 3rd gear train, be provided with the second shifting fork mechanism assembly, described the second shifting fork mechanism assembly can be meshed respectively with the driving wheel of described the second gear and the driving wheel of described the 3rd gear.
Preferably, described shifting fork mechanism assembly comprises that connecting rod, slide block and the shift fork part being connected with described slide block, described shift fork part are connected with described connecting rod, and control piece is connected with described connecting rod, and described slide block is provided with the external splines being meshed with described driving wheel; Described slide block is arranged at described input shaft and described slide block can slide along described input shaft.
Preferably, between the driving wheel of described external splines and described gear train for slight interference is connected.
Preferably, also comprise rolling bearing, the driving wheel of described gear train is all connected with described input shaft by described rolling bearing.
Preferably, described the first gear train is angular gear group, and described the second gear is angular gear group, and described the 3rd gear is straight-tooth gear group.
Preferably, between described the first gear and described gear shaft for interference is connected.
Preferably, the end of described output shaft is provided with the first rolling bearing, and described the first rolling bearing is for being connected with the casing of described power shift gear case; The end of described input shaft is provided with the second rolling bearing, and described the second rolling bearing is for being connected with the casing of described power shift gear case; The end of described gear shaft is provided with the 3rd rolling bearing, and described the 3rd rolling bearing is for being connected with the casing of described power shift gear case.
The utility model provides a kind of power shift gear case, comprise input shaft, output shaft and be provided with driving wheel and the gear train of the follower that is meshed with driving wheel, output shaft is provided with the gear being meshed with gear shaft, comprise all not identical gear trains of at least two shifting fork mechanism assemblies and at least three speed ratios, the driving wheel of at least three gear trains extends axially direction setting along input shaft, and the follower of gear train extends axially direction setting along gear shaft; Shifting fork mechanism assembly is arranged between adjacent driving wheel, and wherein at least one shifting fork mechanism assembly can be meshed with the driving wheel of adjacent two gear trains.So arrange, by controlling shifting fork mechanism assembly, be meshed from different driving wheels, the follower being meshed with this driving wheel can rotate by driven gear axle, in the process of rotating at gear shaft, can drive the gear that is arranged at output shaft to rotate, and then drive output shaft rotation.Owing to being provided with all different gear trains of at least three speed ratios, therefore by controlling shifting fork mechanism assembly, can make at least three different rotating speeds of output shaft output, only exporting two different rotating speeds from prior art compares, power shift gear case provided by the utility model can be exported at least three different rotating speeds, can realize the conversion of car test bench between different speed ratios, expand the excursion of speed ratio.
Accompanying drawing explanation
Fig. 1 provides the structural representation of power shift gear case in a kind of embodiment for the utility model;
Wherein, in Fig. 1:
Input shaft 1, output shaft 2, the first gear 2a, gear shaft 3, the driving wheel 4a of the first gear train, the driving wheel 5a of the follower 4b of the first gear train, the second gear train, the driving wheel 6a of the follower 5b of the second gear train, the 3rd gear train, the follower 6b of the 3rd gear train, the first shifting fork mechanism assembly 7, the second shifting fork mechanism assembly 8, rolling bearing 9, the first rolling bearing 10, the second rolling bearing 11, the 3rd rolling bearing 13.
Embodiment
Core of the present utility model is to provide a kind of power shift gear case, can realize the conversion between different speed ratios, expands the excursion of speed ratio.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1, Fig. 1 provides the structural representation of power shift gear case in a kind of embodiment for the utility model.
In this embodiment, power shift gear case comprises input shaft 1, output shaft 2, the first gear train, the second gear train and the 3rd gear train, wherein, three gear trains comprise driving wheel and the follower being meshed with driving wheel, the driving wheel of above-mentioned three gear trains is arranged at input shaft 1 and extends axially direction setting along input shaft 1, the follower of three gear trains is arranged at gear shaft 3, and output shaft 2 is provided with the first gear 2a being meshed with gear shaft 3; In addition, also be provided with the first shifting fork mechanism assembly 7 and the second shifting fork mechanism assembly 8, the first shifting fork mechanism assembly 7 is arranged between the driving wheel 4a of the first gear train and the driving wheel 5a of the second gear train and the first shifting fork mechanism assembly 7 can be meshed with the driving wheel 4a of the first gear train, and the second shifting fork mechanism assembly 8 is arranged between the driving wheel 5a of the second gear train and the driving wheel 6a of the 3rd gear train and the second shifting fork mechanism assembly 8 can be meshed respectively with the driving wheel 5a of the second gear train and the driving wheel 6a of the 3rd gear train.
So arrange, after the first pull-fork assembly slides into the driving wheel 4a of the first gear train and is meshed with the driving wheel 4a of the first gear train, the driving wheel 4a of the first gear train drives with the follower 4b of the first gear train and rotates, the follower 4b of the first gear train can rotate by driven gear axle 3, the first gear 2a that gear shaft 3 rotations and then drive are meshed with gear shaft 3 rotates, and output shaft 2 rotates, while shifting gears when needs are changed the rotating speed of output, the first shifting fork mechanism assembly 7 need to be slid between the driving wheel 4a of the first gear train and the driving wheel 5a of the second gear train, and the second shifting fork mechanism assembly 8 is slid into the driving wheel 5a of the second gear train and the second shifting fork mechanism assembly 8 is meshed with the driving wheel 5a of the second gear train, now the driving wheel 5a of the second gear train drives the follower 5b of the second gear train to rotate, the follower 5b driven gear axle 3 of the second gear train rotates, and then the first gear 2a is rotated, under the drive of the first gear 2a, output shaft 2 rotates, in the time need to again carrying out the conversion of speed, the second pull-fork assembly slides into the driving wheel 6a of the 3rd gear train and is meshed with the driving wheel 6a of the 3rd gear train, under the drive of the driving wheel 6a of the 3rd gear train, the follower 6b driven gear axle 3 of the 3rd gear train rotates, and then drives output shaft 2 to rotate.Because the speed ratio of the first gear train, the second gear train and the 3rd gear train is all not identical, therefore by changing shifting fork mechanism assembly, be meshed from the driving wheel of different gear train, can realize output shaft 2 rotates with different rotating speeds, and then can realize the conversion between different speed ratios, expand the excursion of speed ratio.
It should be noted that, in this embodiment, be provided with the first gear train, the second gear train and the 3rd gear train are that example describes the working procedure that output shaft 2 is changed between three different rotating speeds in detail, certainly, do not get rid of gear train and shifting fork mechanism assembly that other numbers are set according to actual Production requirement yet, shifting fork mechanism assembly is arranged between the driving wheel of adjacent gear train, and have at least a shifting fork mechanism assembly to be meshed with two adjacent driving wheels, when four groups of gear trains are set, three shifting fork mechanism assemblies need to be set, and one of them shifting fork mechanism assembly can be meshed with two adjacent driving wheels.
Also it should be noted that, in this embodiment, when rotating, gear shaft 3 can drive three followers that are arranged at gear shaft 3 to rotate, because follower is meshed with driving wheel, for avoiding other follower rotation to impact the rotating speed of output shaft 2, the follower of inoperative and the rotation between driving wheel are idle running, first gear train of take is in running order to be elaborated as example, after the first pull-fork assembly slides into the driving wheel 4a of the first gear train and is meshed with the driving wheel 4a of the first gear train, the driving wheel 4a of the first gear train drives with the follower 4b of the first gear train and rotates, now the first gear train is in running order, the second gear train and the 3rd gear train are in off working state, but because rotating, gear shaft 3 can drive the follower 5b of the second gear train and the follower 6b of the 3rd gear train to rotate, for fear of the rotating speed of output shaft 2 is impacted, rotation between the gear of the gear of the second gear train and the 3rd gear train is idle running, and then can not impact the rotating speed of output shaft 2.
In this embodiment, the first shifting fork mechanism assembly 7 and the second shifting fork mechanism assembly 8 include connecting rod, slide block and shift fork part, wherein one end of connecting rod is connected with shift fork part, the other end is connected with controlling rod, shift fork part is connected with slide block and slide block is provided with the external splines for being meshed with driving wheel, and slide block is arranged at input shaft 1 and slide block can slide along input shaft 1.Work people is by operation control piece, control piece drivening rod action, and because connecting rod is connected with shift fork part and shift fork part is connected with slide block, so can be along input shaft 1 slip, until the external splines of slide block is meshed with driving wheel at the drive bottom slide block of connecting rod.By connecting rod is set, can guarantee the stability that slide block slides.In addition, between the external splines of slide block and driving wheel, for slight interference is connected, with this, can guarantee the steadiness being connected between external splines and driving wheel, between the gear that is simultaneously arranged at output shaft 2 and gear shaft 3, for interference is connected, with this, guarantee the steadiness that both connect.
It should be noted that, in this embodiment, connecting rod in the first shifting fork structure assembly is all connected with same control piece with the connecting rod in the second shifting fork mechanism assembly 8, by change control piece movement direction, can control corresponding connecting rod and move, and then can guarantee the continuity of gearshift action.Certainly, do not get rid of the set-up mode that adopts other yet, as two control pieces are set, these two control pieces are connected with the connecting rod of the second shifting fork structure assembly with the connecting rod of the first shifting fork structure assembly respectively, so by controlling different control pieces, can realize the conversion between gear.
Also it should be noted that, in this embodiment, adopt slide block to be meshed with the driving wheel of gear train, certainly, also can adopt according to actual PRODUCTION STATUS other assembly, as adopted bearing, end at bearing arranges spline, to guarantee that bearing is meshed with moving gear.
What also need to further illustrate is, in this embodiment, between the external splines of slide block and driving wheel for slight interference is connected, between the gear that is arranged at output shaft 2 and gear shaft 3 for interference is connected, certainly, yet do not get rid of according to actual Production requirement and adopt other forms of Placement.
Further in scheme, for the steadiness that guarantees that driving wheel is connected with input shaft 1, also comprise the driving wheel 4a of rolling bearing 9, the first gear trains, the driving wheel 6a of the driving wheel 5a of the second gear train and the 3rd gear train is connected with input shaft 1 by rolling bearing 9 respectively.By rolling bearing 9 is set, can guarantee the steadiness that three driving wheels are connected with input shaft 1.
In addition, in this embodiment, be also provided with the first rolling bearing 10, the second rolling bearing 11 and the 3rd rolling bearing 13, wherein the end of output shaft 2 is provided with the first rolling bearing 10, the first rolling bearings 10 and is connected with the casing of power shift gear case; The end of input shaft 1 is provided with the second rolling bearing 11, the second rolling bearings 11 and is connected with the casing of power shift gear case; The end of gear shaft 3 is provided with the 3rd rolling bearing 13, the three rolling bearings 13 for being connected with the casing of power shift gear case.So, by the first rolling bearing 10, the second rolling bearing 11 and the 3rd rolling bearing 13 are set, the steadiness that input shaft 1, output shaft 2 and gear shaft 3 are connected with casing can be guaranteed, the noise that input shaft 1 and output shaft 2 produce in rotation process can be reduced.
Further, in scheme, the first gear train and the second gear train are angular gear group, and the 3rd gear train is straight-tooth gear group, certainly, also do not get rid of and according to actual Production requirement, adopt other gear train.
Above a kind of power shift gear case provided by the utility model is described in detail.Applied specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation is just for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. a power shift gear case, comprise input shaft (1), output shaft (2) and be provided with driving wheel and the gear train of the follower that is meshed with driving wheel, the driving wheel of gear train is arranged at input shaft (1), it is characterized in that, the follower of described gear train is arranged at gear shaft (3), and output shaft (2) is provided with the first gear (2a) being meshed with described gear shaft (3); Also comprise all not identical gear trains of at least two shifting fork mechanism assemblies and at least three speed ratios, the driving wheel of at least three described gear trains extends axially direction setting along described input shaft (1), and the follower of described gear train extends axially direction setting along described gear shaft (3); Described shifting fork mechanism assembly is arranged between adjacent described driving wheel, and wherein described at least one, shifting fork mechanism assembly can be meshed with the driving wheel of adjacent two described gear trains.
2. power shift gear case according to claim 1, it is characterized in that, comprise the first gear train, the second gear train and the 3rd gear train, between the driving wheel (5a) of the driving wheel of described the first gear train (4a) and described the second gear train, be provided with the first shifting fork mechanism assembly (7), described the first shifting fork mechanism can be meshed with the driving wheel (4a) of described the first gear train; Between the driving wheel (6a) of the driving wheel of described the second gear train (5a) and described the 3rd gear train, be provided with the second shifting fork mechanism assembly (8), described the second shifting fork mechanism assembly (8) can be meshed respectively with the driving wheel of described the second gear and the driving wheel of described the 3rd gear.
3. power shift gear case according to claim 2, it is characterized in that, described shifting fork mechanism assembly comprises connecting rod, slide block and the shift fork part being connected with described slide block, described shift fork part is connected with described connecting rod, control piece is connected with described connecting rod, and described slide block is provided with the external splines being meshed with described driving wheel; Described slide block is arranged at described input shaft (1) and described slide block can slide along described input shaft (1).
4. power shift gear case according to claim 3, is characterized in that, between the driving wheel of described external splines and described gear train for slight interference is connected.
5. according to the power shift gear case described in arbitrary of claim 1 to 4, it is characterized in that, also comprise rolling bearing (9), the driving wheel of described gear train is all connected with described input shaft (1) by described rolling bearing (9).
6. power shift gear case according to claim 2, is characterized in that, described the first gear train is angular gear group, and described the second gear is angular gear group, and described the 3rd gear is straight-tooth gear group.
7. power shift gear case according to claim 1, is characterized in that, between described the first gear (2a) and described gear shaft (3) for interference is connected.
8. power shift gear case according to claim 7, is characterized in that, the end of described output shaft (2) is provided with the first rolling bearing (10), and described the first rolling bearing (10) is for being connected with the casing of described power shift gear case; The end of described input shaft (1) is provided with the second rolling bearing (11), and described the second rolling bearing (11) is for being connected with the casing of described power shift gear case; The end of described gear shaft (3) is provided with the 3rd rolling bearing (13), and described the 3rd rolling bearing (13) is for being connected with the casing of described power shift gear case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022620.0U CN203836091U (en) | 2014-01-14 | 2014-01-14 | Gear shifting gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022620.0U CN203836091U (en) | 2014-01-14 | 2014-01-14 | Gear shifting gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836091U true CN203836091U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420022620.0U Expired - Lifetime CN203836091U (en) | 2014-01-14 | 2014-01-14 | Gear shifting gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443432A (en) * | 2018-06-11 | 2018-08-24 | 江苏赫夫特齿轮制造有限公司 | Uniaxial drive twin shaft exports three speed ratio speed reducers |
-
2014
- 2014-01-14 CN CN201420022620.0U patent/CN203836091U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443432A (en) * | 2018-06-11 | 2018-08-24 | 江苏赫夫特齿轮制造有限公司 | Uniaxial drive twin shaft exports three speed ratio speed reducers |
| CN108443432B (en) * | 2018-06-11 | 2023-12-26 | 江苏赫夫特齿轮制造有限公司 | Single-shaft input double-shaft output three-speed ratio speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 400039 floor 7, building D3, Erlang international student entrepreneurship Park, No. 71 and No. 71-1, Kecheng Road, Jiulongpo District, Chongqing Patentee after: CHONGQING YONG JIN HEAVY MACHINERY COMPLETE EQUIPMENT CO.,LTD. Address before: 404000 No. 139-53, Keyuan 3rd Street, Jiulongpo District, Chongqing Patentee before: CHONGQING YONG JIN HEAVY MACHINERY COMPLETE EQUIPMENT CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |