CN103453085A - Gear case device - Google Patents
Gear case device Download PDFInfo
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- CN103453085A CN103453085A CN201210247849XA CN201210247849A CN103453085A CN 103453085 A CN103453085 A CN 103453085A CN 201210247849X A CN201210247849X A CN 201210247849XA CN 201210247849 A CN201210247849 A CN 201210247849A CN 103453085 A CN103453085 A CN 103453085A
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- gear
- synchronizer
- shaft
- box device
- input shaft
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Abstract
Disclosed is a gear case device. A synchronizer is fixed on a power input shaft and rotates with the power input shaft. An input gear is sleeved on the power input shaft in an idle form and can rotate optionally in relation to the power input shaft. An output gear is fixed on a power output shaft and rotates with the power output shaft. The input gear meshes with a first gear and a second gear. The output gear meshes with a third gear and a fourth gear. The first gear and the third gear are fixed on a first intermediate s haft and can rotate synchronously. The second gear and the fourth gear are fixed on a second intermediate shaft and can rotate synchronously. The synchronizer can be connected with the input gear or the output gear. The gear case device has the advantages that rotational inertia to be overcome in the synchronization process of the synchronizer can be reduced greatly, the lifetime of the synchronizer is prolonged, gear shifting force is reduced, the gear case device can be used independently and can also be used as a front auxiliary case or a rear auxiliary case for a multi-speed transmission.
Description
Technical field
The present invention relates to the gear transmission technology field, relate to particularly a kind of gear box device (gear graduation apparatus).
Background technique
Gear-shift transmission is the gear-box had more than a gear ratio, and it is for changing rotating speed and the moment of torsion of rotating power (power source can be motor, or other motors).Speed changer often is applied to vehicle, regulates output speed and the moment of torsion of motor.While working, can change the speed interval of vehicle, the gear shift namely be commonly called as under different gear ratios.
Select in order to obtain more gear, consider again effective control of cost and the utilization in space simultaneously, the application of two speed ratio speed changers and optimization just become very important.Two speed ratio speed changers not only can independent utility, before can also being attached to certain many gear speed-changings device or use afterwards, the gear number of many gear speed-changings device can be doubled like this.
Two speed ratio speed changers can use a plurality of jack shafts (claiming again countershaft) layout of transmitted power side by side, to the requirement of strength of every jack shaft and gear thereof, can reduce like this, shorten the axial dimension of speed changer simultaneously, thereby can effectively reduce size and the weight of gear-box integral body.But, if the gear engagement is undesirable, a gear will preferentially mesh than other gears, thereby bear most of load, so must improve its safety coefficient in actual design process, this has just reduced the superiority of many jack shafts mode, so two jack shafts only are set in conventional gear-box.
With reference to Fig. 1, in the twin countershaft transmission of existing patent, synchronizer 1100 is fixed on pto＝power take-off 1000, output gear 900 empty sets are on pto＝power take-off 1000, input gear 200 is connected with power input shaft 100, so synchronizer 1100 is in the process of synchronous output gear 900, need to additionally overcome two jack shafts 500 of odd-side, 600 with and upper all gears 300, 400, 700, 800 rotary inertia acting, this just requires gear shifting force to increase, thereby cause 1100 life-spans of synchronizer to descend, perhaps require the raising of synchronizer 1100 capacity, thereby synchronizer 1100 costs or volume have been had to requirements at the higher level.Note, in Fig. 1, arrow R100 illustrates input load, and R200 illustrates output loads.
Summary of the invention
Make the present invention for solving above-mentioned problems of the prior art.
Particularly, the present invention is that when synchronizer is synchronous, the required rotary inertia overcome is large in order to overcome in existing speed changer, and gear shifting force is large, the shortcomings such as the synchronizer life-span is low, and a kind of gear box device (sometimes also referred to as gear arrangement) that adopts brand-new synchronizer layout type is proposed.This device decrease gearshift rotary inertia, reduce gear shifting force, extends the synchronizer life-span, reduces costs.
For realizing at least one above-mentioned purpose, the present invention can adopt following scheme implementation.
A kind of gear box device, synchronizer is fixed on power input shaft, with described power input shaft, rotates; The input gear empty set, on described power input shaft, can rotate freely with respect to described power input shaft; Output gear is fixed on pto＝power take-off, with described pto＝power take-off, rotates.
Preferably, described input gear and the first gear and the engagement of the second gear, described output gear and the 3rd gear and the engagement of the 4th gear, described the first gear and described the 3rd gear are fixed on the first jack shaft and can synchronous rotaries, and described the second gear and described the 4th gear are fixed on the second jack shaft and can synchronous rotary.
Preferably, described synchronizer can be connected with described input gear or described output gear.
Described input gear can be common spur gear or helical gear, and preferably, described input gear is cylindrical gears, duplicate gear or herringbone gear.
Preferably, described power input shaft and described pto＝power take-off are on same axis, the axis of the axis of described the first jack shaft and described the second jack shaft is parallel with the axis of described pto＝power take-off, and three axis can be in same plane, certainly, three axis also can be in a plane.
Preferably, described input gear can, by being connected in conjunction with tooth of spline and described synchronizer, certainly, also can connect by other modes.
Preferably, the synchronous hub of described synchronizer is fixed on described power input shaft, and alternatively, described synchronizer is double-cone synchronizer, by spline, is fixed on described power input shaft, certainly, also can connect by other modes.
Preferably, described pto＝power take-off is connected with output flange by spline.
Preferably, to the bearing positioning supports shown in described power input shaft and/or described pto＝power take-off and/or described the first jack shaft and/or described second jack shaft employing Fig. 5.
Preferably, described gear box device can be attached to before certain speed changer or use afterwards, also can with the integrated use of the gear-box of other structure.
The present invention has following advantage: need the rotary inertia overcome in this device decrease synchronizer synchronizing process, increase the synchronizer life-span, reduce berth-changing strength; This device both can be used separately, also can be attached to before certain speed changer or use afterwards, also can with the integrated use of the gear-box of other structure.
The accompanying drawing explanation
Fig. 1 is the gear box device according to prior art.
Fig. 2 is the first structural representation according to gear box device of the present invention.
Fig. 3 is the second structural representation according to gear box device of the present invention.
Fig. 4 is the structural representation according to the embodiment 1 of gear box device of the present invention.
Fig. 5 is the structural representation according to the embodiment 2 of gear box device of the present invention.
Embodiment
Below with reference to Fig. 2 to Fig. 5, principle of the present invention and illustrative embodiments are described.
In the accompanying drawings, same or analogous parts are illustrated by identical reference character, and sometimes do not do repeat specification.In addition, the closely-related parts with the present invention only are shown in figure, though for not specifically illustrating in figure or illustrating but make the parts that illustrate, those skilled in the art is according to its technological know-how and instruction of the present invention, certainly can understand its concrete structure and do, and can make the arrangement identical or different with the present invention.
With reference to Fig. 2 to Fig. 3, the invention provides a kind of gear box device (sometimes also referred to as gear arrangement), synchronizer 11 is fixed on power input shaft (sometimes referred to as input shaft) 1, with 1 rotation of power input shaft; Input gear 2 empty sets, on power input shaft 10, can rotate freely with respect to power input shaft 1; Output gear 9 is fixed on pto＝power take-off (sometimes referred to as output shaft) 10, with pto＝power take-off 10 rotations.
In Fig. 3, input gear 2 is duplicate gear, certainly, the invention is not restricted to this.
This gear arrangement realizes that the approach of gear ratio is:
1, input load R1 drives input shaft 1, drive synchronizer 11 rotations, synchronizer 11 is connected with input gear 2, and by input gear 2 driven gears 3 and gear 4 rotations, gear 3,4 drives respectively axle 5,6 rotations at its place, thereby driven gear 7 and gear 8 rotations, finally drive output gear 9 rotations by gear 7 and gear 8, finally drives output shaft 10 by power stage (output loads R2);
2, input load drives input shaft 1, drives synchronizer 11 rotations, and synchronizer 11 is connected with output gear 9, and output gear 9 drives output shaft 10, output power.
The synchronous hub of synchronizer 11 is arranged on the structure on power input shaft 1, and while significantly having reduced gear shift, the rotary inertia that synchronizer 11 need to overcome, reduced berth-changing strength; Perhaps, maintain same handle power and the gear shift cycle, can adopt less synchronizer size, reduce the synchronizer cost, and speed changer overall dimensions and weight.
Speed changer after improvement, both input directly can be connected with load and use with directly connection of power source, output shaft, also can be combined with other gear-boxes or speed changer, use for example, before can being attached to certain speed changer or afterwards, also can be integrated in the transmission of other structure in a casing and use.
Below with reference to Fig. 4 and Fig. 5, embodiments of the invention 1 and 2 are described.
<embodiment 1 > (with reference to Fig. 4)
The example of herein enumerating be of the present invention one can be practical two speed ratio speed changer structures, it,, just in order to describe the present invention in detail, is a kind of application of the present invention, can not think to limit the present invention.
Have four axles in the speed changer of the present embodiment: input shaft 1,10, two jack shafts of output shaft 5,6.
Input shaft 1 is the input shaft of speed changer power.
The axis of two jack shafts 5,6 is parallel with the axis of output shaft 10, and three axis at grade.
Speed changer has two gear pairs: input gear secondary 2 and output gear wheel set 9.
Output gear wheel set 9: be arranged on respectively two gears 7,8 on two jack shafts 5,6 and drive together the gear 9 on output shaft 10 that is arranged on their engagements, and drive output shaft 10 and together rotate; Gear 7,8 on jack shaft 5,6 is connected by interference fit and jack shaft 5,6; Gear 9 on output shaft 10 also is connected by interference fit and output shaft 10.
A synchronizer 11 is arranged in speed changer.
What the present embodiment was used is a double-cone synchronizer, by spline joint on input shaft 1, by selecting be connected with output shaft 10 or be connected with input gear 2 in conjunction with tooth; Wherein with input gear 2, be connected in conjunction with tooth be empty set on input shaft 1, by spline, with input gear 2, be connected.
In speed changer, have seven places to use bearing:
Front bearing, input shaft: be a Biserial cylindrical roller bearing, limit the radial displacement of input shaft front end, and limit the axial displacement of input shaft 1 by the shaft shoulder.
Front bearing, output shaft: outer ring connects input shaft end endoporus, and inner ring connects output shaft front end cylindrical, limits their radial displacement and axial displacement.
Rear bearing, output shaft: a pair of cylindrical roller cone bearing, with aspectant mounting type, together be arranged on output shaft 10, limit its radial displacement and axial displacement.
Midship shaft bearing: two pairs of cylindrical roller cone bearings, be arranged on respectively the two ends of every jack shaft 5,6 with Back-to-back installation, limited radial displacement and the axial displacement of odd- side jack shaft 5,6.
In the present embodiment, on output shaft 10 also by spline joint an output flange.
Under this structure, no matter use which grade speed ratio of speed changer, all only need to overcome the rotary inertia of self and input shaft 1 in synchronizer 11 synchronizing processes, compare with conventional construction, significantly alleviated the burden of synchronizer.
<embodiment 2 > (with reference to Fig. 5)
The present invention also can be used as one and is attached to certain speed changer before or uses afterwards, also can be integrated in the transmission system of other structure in a casing and use, and Fig. 5 has provided the example as a post-modifier.
The many gear speed-changings device used in the present embodiment is many gear speed-changings of a pair of jack shaft device.
The output shaft of main tank X1 directly extends into odd-side X2 (the present invention), as the input shaft 1 of odd-side;
Two jack shaft ends of main tank are connected with two major axis 5,6 newly-increased in odd-side by spline, be used for transmitted power to power take-off, to meet other functions of automobile extra demand (such as dumping car tipping bucket, fire-fighting truck water spray, concrete mixer rotation, wagon truck refrigeration etc.) on power;
Other structures of main tank, in this not burdensome narration, are used before being attached to certain speed changer or afterwards, also can be integrated in the transmission of other structure in a casing and use, and structure is identical with embodiment 1 mentioned above.
In this structure, need the rotary inertia overcome in the synchronizer synchronizing process, with conventional construction, compare, only increased the rotary inertia of synchronizer synchronous hub, but exempted the rotary inertia of input gear pair, output gear wheel set and two jack shafts in the conventional construction, thereby alleviated significantly the gearshift burden of conventional construction synchronizer.
The above, with reference to the accompanying drawings of the preferred embodiment of the present invention, still, should be appreciated that above-mentioned explanation is only exemplary.Those skilled in the art can under the premise without departing from the spirit and scope of the present invention, make various modifications and variations to the present invention.Protection scope of the present invention is limited by the accompanying claims.
Claims (10)
1. a gear box device, is characterized in that, synchronizer is fixed on power input shaft, with described power input shaft, rotates; The input gear empty set, on described power input shaft, can rotate freely with respect to described power input shaft; Output gear is fixed on pto＝power take-off, with described pto＝power take-off, rotates.
2. gear box device according to claim 1, it is characterized in that, described input gear and the first gear and the engagement of the second gear, described output gear and the 3rd gear and the engagement of the 4th gear, described the first gear and described the 3rd gear are fixed on the first jack shaft and can synchronous rotaries, and described the second gear and described the 4th gear are fixed on the second jack shaft and can synchronous rotary.
3. gear box device according to claim 2, is characterized in that, described synchronizer can be connected with described input gear or described output gear.
4. according to the described gear box device of any one in claims 1 to 3, it is characterized in that, described input gear is cylindrical gears, duplicate gear or herringbone gear.
5. according to the described gear box device of any one in claims 1 to 3, it is characterized in that, described power input shaft and described pto＝power take-off are on same axis, the axis of the axis of described the first jack shaft and described the second jack shaft is parallel with the axis of described pto＝power take-off, and these three axis are in a plane, or not in a plane.
6. according to the described gear box device of any one in claims 1 to 3, it is characterized in that, described input gear is connected in conjunction with tooth with described synchronizer.
7. according to the described gear box device of any one in claims 1 to 3, it is characterized in that, the synchronous hub of described synchronizer is fixed on described power input shaft.
8. according to the described gear box device of any one in claims 1 to 3, it is characterized in that, described pto＝power take-off is connected with output flange.
9. according to the described gear box device of any one in claims 1 to 3, it is characterized in that, described power input shaft and/or described pto＝power take-off and/or described the first jack shaft and/or described the second jack shaft all have positioning bearing.
10. according to the described gear box device of any one in claims 1 to 3, it is characterized in that, described gear box device is used alone, or before being attached to certain speed changer, use afterwards, or use in a casing with the gear-box of other structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210247849XA CN103453085A (en) | 2012-06-01 | 2012-07-18 | Gear case device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220255922 | 2012-06-01 | ||
| CN201220255922.3 | 2012-06-01 | ||
| CN201210247849XA CN103453085A (en) | 2012-06-01 | 2012-07-18 | Gear case device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103453085A true CN103453085A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210247849XA Pending CN103453085A (en) | 2012-06-01 | 2012-07-18 | Gear case device |
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| CN (1) | CN103453085A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337903A (en) * | 2016-11-01 | 2017-01-18 | 简式国际汽车设计（北京）有限公司 | Gear speed reducing mechanism |
| CN106763542A (en) * | 2016-12-16 | 2017-05-31 | 中国石油天然气集团公司 | A kind of speed-changing gear box |
| CN108194581A (en) * | 2017-12-27 | 2018-06-22 | 合肥工业大学 | A kind of electric vehicle two being made of double helical spurgear keeps off speed change gear |
| CN109630616A (en) * | 2018-08-21 | 2019-04-16 | 常州赫尔格力狮传动技术有限公司 | The dotted line gear assembly of the double jackshaft unbalance loadings of solution with full centralized positioning |
| CN109630625A (en) * | 2018-08-21 | 2019-04-16 | 常州赫尔格力狮传动技术有限公司 | The speed changer for having both single, double jackshaft advantage with adaptive transmission device |
| CN109630617A (en) * | 2018-08-21 | 2019-04-16 | 常州赫尔格力狮传动技术有限公司 | The adaptive transmission device of the double jackshaft unbalance loadings of solution with full centralized positioning |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992008067A1 (en) * | 1990-11-01 | 1992-05-14 | Ab Volvo | Motor vehicle gearbox |
| US5697250A (en) * | 1996-07-22 | 1997-12-16 | New Venture Gear, Inc. | Compact manual transaxle |
| CN201198893Y (en) * | 2008-05-30 | 2009-02-25 | 陕西法士特齿轮有限责任公司 | Double-middle shaft helical teeth speed variator |
| CN201368182Y (en) * | 2008-12-02 | 2009-12-23 | 陕西法士特齿轮有限责任公司 | Oil-saving speed changer for automobile |
| CN201858345U (en) * | 2010-11-10 | 2011-06-08 | 中国第一汽车集团公司 | Novel double-intermediate shaft heavy type 10-gear transmission assembly |
-
2012
- 2012-07-18 CN CN201210247849XA patent/CN103453085A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992008067A1 (en) * | 1990-11-01 | 1992-05-14 | Ab Volvo | Motor vehicle gearbox |
| US5697250A (en) * | 1996-07-22 | 1997-12-16 | New Venture Gear, Inc. | Compact manual transaxle |
| CN201198893Y (en) * | 2008-05-30 | 2009-02-25 | 陕西法士特齿轮有限责任公司 | Double-middle shaft helical teeth speed variator |
| CN201368182Y (en) * | 2008-12-02 | 2009-12-23 | 陕西法士特齿轮有限责任公司 | Oil-saving speed changer for automobile |
| CN201858345U (en) * | 2010-11-10 | 2011-06-08 | 中国第一汽车集团公司 | Novel double-intermediate shaft heavy type 10-gear transmission assembly |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337903A (en) * | 2016-11-01 | 2017-01-18 | 简式国际汽车设计（北京）有限公司 | Gear speed reducing mechanism |
| CN106763542A (en) * | 2016-12-16 | 2017-05-31 | 中国石油天然气集团公司 | A kind of speed-changing gear box |
| CN108194581A (en) * | 2017-12-27 | 2018-06-22 | 合肥工业大学 | A kind of electric vehicle two being made of double helical spurgear keeps off speed change gear |
| CN109630616A (en) * | 2018-08-21 | 2019-04-16 | 常州赫尔格力狮传动技术有限公司 | The dotted line gear assembly of the double jackshaft unbalance loadings of solution with full centralized positioning |
| CN109630625A (en) * | 2018-08-21 | 2019-04-16 | 常州赫尔格力狮传动技术有限公司 | The speed changer for having both single, double jackshaft advantage with adaptive transmission device |
| CN109630617A (en) * | 2018-08-21 | 2019-04-16 | 常州赫尔格力狮传动技术有限公司 | The adaptive transmission device of the double jackshaft unbalance loadings of solution with full centralized positioning |
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Application publication date: 20131218 |