CN2277006Y - Stepless speed changing box - Google Patents
Stepless speed changing box Download PDFInfo
- Publication number
- CN2277006Y CN2277006Y CN 96220542 CN96220542U CN2277006Y CN 2277006 Y CN2277006 Y CN 2277006Y CN 96220542 CN96220542 CN 96220542 CN 96220542 U CN96220542 U CN 96220542U CN 2277006 Y CN2277006 Y CN 2277006Y
- Authority
- CN
- China
- Prior art keywords
- wheel
- drive wheel
- variable transmission
- infinitely variable
- arc
- 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 new stepless speed changing box, which is composed of a casing of the speed changing box, a driving arc wheel, a driven arc wheel, a transmission wheel, an operation rotating device, etc., wherein, the driving arcuate wheel and the driven arcuate wheel are arranged in the middle of the casing of the speed changing box; the rotating speed can be changed through adjusting the contact point of the transmission wheel and two arcuate wheels; stepless speed changing transmission in the field of mechanical transmission is successfully realized for the first time; the utility model overcomes the disadvantages that the transmission gear box carries out the speed changing needing parking or decelerating, the fabrication process is complicated, and the gear teeth are easy to damage causing the extinguishing of a motor. The utility model has the advantages of simple structure and large speed changing range; the utility model can be used for changing speed for automobiles and machining apparatus.
Description
The utility model relates to mechanical transmission fields, specifically a kind of stepless speed changes devices.
At present mostly used speed change gear is speed-changing gear box on process equipments such as transport facility such as automobile and various lathes, its manufacturing process complexity, the time-consuming material that takes, the operational site noise is big, damage the gear tooth during operation easily, must slow down or stop during speed change and can carry out, motor is easily flame-out and also have the slewing range restriction, and maintenance is also inconvenient when being out of order.
The purpose of this utility model is to overcome the deficiency of existing speed change gear, provides a kind of simple in structure, easy to maintenance, but the just novel infinitely variable transmission of direct change that need not stop, need not slow down when in operation process, needing speed change.
The technical solution of the utility model is such: symmetry is placed two measure-alike active arc wheels and passive arc wheel and is left the gap in gear box casing; Fixedly bobbin of one drive wheel is set in the middle of the two-wheeled, this fixedly the outer rim of bobbin be connected with gear box casing; Be equiped with between active arc wheel and passive arc wheel and they all contacted drive wheels, this drive wheel is connected on the drive wheel operation fixing frame, and fixing frame is installed in drive wheel fixedly on the bobbin.The drive wheel fixedly inboard of bobbin is equipped with somely to bearing support, and the end axle of drive wheel operation fixing frame is contained on this bearing support and can rotates; The end axle two ends of drive wheel operation fixing frame can also the identical bevel gear of plant bulk.
Initiatively the opposing side of arc wheel and passive arc wheel respectively has an annular groove, at the edge of annular groove spacing back-up ring is housed.
The wheel rim place of drive wheel can load onto high-intensity friction material; Profile of tooth or burr shape also can be processed in the wheel rim place of drive wheel, and lead, the friction material of device one deck high damping coefficient on the annular groove face of passive arc wheel.
On the transmission shaft of passive arc wheel, be connected with the set of gears speed reducer.
Compare with speed-changing gear box, the utlity model has following advantage:
1, need not slow down or stop, but direct change in the running, and slewing range is big, noise is little.
2, simple in structure, easy manufacturing, repairing easy accessibility.
3, component universality is good, is easy to realize mold, standardized production.
4, save raw material, saving machinery with oily, application prospect is extensive.
Below in conjunction with drawings and Examples the utility model is further elaborated.
Fig. 1 is the utility model structural representation.
Fig. 2 is for drive wheel is installed, schematic representation is rotated in operation.
Fig. 3 is main, passive arc wheel structural perspective.
The size that processing and fabricating is good (main finger ring connected in star, the edge of annular groove is equipped with spacing back-up ring 10, see Fig. 3) identical active arc wheel 3 and passive arc wheel 4 symmetries are placed on (see figure 1) in the gear box casing 1, and in two-wheeled, place fixedly bobbin 2 of a drive wheel, there are some spiral hole 19 in the outside of this bobbin 2 so that be connected and fixed with housing 1, three pairs of bearing support 16 (see figure 2)s are equipped with in the inboard, the end axle 8 that all has three drive wheels operation fixing frames 7 (wherein a ribbon gymnastics is made handle 18) of drive wheel 6 just is contained on these bearing supports respectively and can rotates, and intermesh between two measure-alike bevel gears 15 and adjacent two bevel gears (embodiment adopts and place three drive wheels in two arc wheels is in order to increase driving force) also is equipped with at end axle 8 two of each drive wheel operation fixing frame 7.Frictional force when the wheel rim place of drive wheel 6 has the senior bakelite friction plate material 5 of one deck with the increase transmission, thrust-bearing 20 all is equipped with in the outer end of main, passive arc wheel shaft, tighten the connecting bolt 19 of gear box casing 1 outside, then three drive wheels 6 just are pressed in the annular groove of main, passive arc wheel 3 and 4, and it can not be slided.
Allow the active arc wheel 3 that stretches out housing 1 connect the output shaft of power source (motor, motor) 14, convey the passive wheel shaft 11 that passive arc wheel 4 connects and connect a gear reduction case apparatus in the outside of gear box casing 1---passive wheel shaft 11 is connected with speed reduction gear box axle 12 in the speed reducer housing 13 by a pair of gear on it, the gear that does not wait by a pair of diameter is connected with another gear shaft 9 again, so that increase moment of torsion as output terminal.
When novel infinitely variable transmission is worked, after motor or motor 14 start, the active arc wheel 3 that then drives in the gear box casing 1 rotates, rotate around the power axle 17 that is fixed on the drive wheel operation fixing frame 7 with its drive wheel that closely contacts 6 simultaneously, because the impacting force the when friction plate material of drive wheel wheel rim is installed promptly drives passive arc wheel 4 and rotates in addition.
Rotating operation handle 18, then drive wheel rotates an angle simultaneously with drive wheel operation fixing frame 7, see Fig. 2, under the engagement of three pairs of bevel gears 15, each drive wheel all turns over identical angle, because what initiatively arc wheel 3 contacted with drive wheel 6 is an arc surface, during rotation on the diametric(al) of arc surface upper edge the linear velocity of every bit all different, the point of contact of drive wheel 6 and active arc wheel 3 is when AnchorPoint is near, because drive wheel 6 is far away from passive wheel shaft center with the arc surface point of contact of passive arc wheel 4, just can obtain lower rotating speed this moment, otherwise then can transmit high rotational speed; And when operation handle with sleeve 18 makes drive wheel 6 forward two cambered surface point midways to, be drive wheel 6 with the arc surface point of contact of arc wheel 3 initiatively to the distance of driving wheel central point with the arc surface point of contact of drive wheel 6 another sides and passive arc wheel 4 when the distance of driven wheel central point equates, on gearbox, realized the stepless change job requirement of not stopping or not slowing down thereby transmit the constant speed rotation at this moment.
The utility model has solved the stepless change problem in the friction driving first, is widely used in particularly requiring high-revolving mechanical device on the equipment such as automobile, lathe, and only needing just can increase rotating speed to the enlarged diameter of arc wheel exponentially.
Claims (8)
1, a kind of novel infinitely variable transmission is characterized in that:
1), symmetry is placed two measure-alike active arc wheels (3) and passive arc wheels (4) and is left the gap in gear box casing (1);
2), between active arc wheel (3) and passive arc wheel (4), be provided with fixedly bobbin (2) of drive wheel, fixedly the outer rim of bobbin (2) is connected with gear box casing (1);
3), be equiped with and they all contacted drive wheels (6) between active arc wheel (3) and passive arc wheel (4), this drive wheel (6) is connected on the drive wheel operation fixing frame (7), and this fixing frame (7) is installed in drive wheel fixedly on the bobbin (2).
2, novel infinitely variable transmission according to claim 1 it is characterized in that the opposing side of active arc wheel (3) and passive arc wheel (4) respectively has an annular groove, and the edge of annular groove is equipped with spacing back-up ring (10).
3, novel infinitely variable transmission according to claim 1 is characterized in that drive wheel fixedly is equipped with somely to bearing support (16) in the inboard of bobbin (2), and the end axle of drive wheel operation fixing frame (7) is contained in that bearing support (16) is gone up and is rotatable.
4, novel infinitely variable transmission according to claim 3 is characterized in that the identical bevel gear (15) of end axle two ends plant bulk of drive wheel operation fixing frame (7).
5, novel infinitely variable transmission according to claim 1 is characterized in that high-intensity friction material (5) is equipped with at the wheel rim place of drive wheel (6).
6, novel infinitely variable transmission according to claim 1 is characterized in that the wheel rim place of drive wheel (6) can be profile of tooth, and lead, the friction material of device one deck high damping coefficient on the annular groove face of passive arc wheel.
7, novel infinitely variable transmission according to claim 1, the wheel rim place that it is characterized in that drive wheel (6) is a burr shape.
8, novel infinitely variable transmission according to claim 1 is characterized in that being connected with the set of gears speed reducer on the transmission shaft (11) of passive arc wheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220542 CN2277006Y (en) | 1996-09-13 | 1996-09-13 | Stepless speed changing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220542 CN2277006Y (en) | 1996-09-13 | 1996-09-13 | Stepless speed changing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2277006Y true CN2277006Y (en) | 1998-03-25 |
Family
ID=33900794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96220542 Expired - Fee Related CN2277006Y (en) | 1996-09-13 | 1996-09-13 | Stepless speed changing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2277006Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333185C (en) * | 2003-07-28 | 2007-08-22 | 崔光彩 | Roller spherical face arc dish stepless speed variator |
| CN102678857A (en) * | 2012-06-08 | 2012-09-19 | 侯亚峰 | Infinitely variable transmission warped shaft variable speed combination structure |
-
1996
- 1996-09-13 CN CN 96220542 patent/CN2277006Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333185C (en) * | 2003-07-28 | 2007-08-22 | 崔光彩 | Roller spherical face arc dish stepless speed variator |
| CN102678857A (en) * | 2012-06-08 | 2012-09-19 | 侯亚峰 | Infinitely variable transmission warped shaft variable speed combination structure |
| CN102678857B (en) * | 2012-06-08 | 2015-06-17 | 侯亚峰 | Infinitely variable transmission warped shaft variable speed combination structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |