CN203258004U - Stepless speed change device - Google Patents
Stepless speed change device Download PDFInfo
- Publication number
- CN203258004U CN203258004U CN 201320142881 CN201320142881U CN203258004U CN 203258004 U CN203258004 U CN 203258004U CN 201320142881 CN201320142881 CN 201320142881 CN 201320142881 U CN201320142881 U CN 201320142881U CN 203258004 U CN203258004 U CN 203258004U
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- CN
- China
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- shaft
- transmission shaft
- stepless speed
- direction rotating
- rotating shaft
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Abstract
The utility model provides a stepless speed change device which comprises a casing, a left hemisphere shaft, a right hemisphere shaft, a transmission shaft, a transmission shaft supporting frame, a direction rotating shaft and the like. The transmission shaft, the left hemisphere shaft and the right hemisphere shaft have the same outline curve, so that the transmission shaft, the left hemisphere shaft and the right hemisphere shaft always keep contact in the movement process. Power is input from the left hemisphere shaft, and the transmission shaft rotates around itself under the effect of friction force and drives the right hemisphere shaft to rotate so as to achieve power output. A transmission shaft support is driven by the direction rotating shaft to rotate a certain angle along with the direction rotating shaft in a space, so that the contact radiuses of the left end and the right end of the transmission shaft are changed, and change of transmission ratio is achieved. When the direction rotating shaft continuously rotates in the space, continuous change of the transmission ratio is achieved, and stepless speed adjustment is achieved at the output end of the right hemisphere shaft. The stepless speed change device is simple in structure and convenient to manufacture in a whole, can be installed in a small working space, can change transmission power by changing pressure of the transmission shaft, the left hemisphere shaft and the right hemisphere shaft and the length of the contact curve, and meets requirements of different power.
Description
Technical field
The present invention relates to stepless speed changes devices, applicable to the various machinery that gear ratio is arranged.
Background technique
At present, known stepless speed changes devices has the devices such as hydraulic automatic speed variator, CVT, and hydraulic automatic speed variator is comprised of fluid torque converter, planetary pinion and hydraulic control system, and the mode by fluid power transmission and Gear combination reaches variable-speed torque-converting; CVT adopts the ratchet of driving belt and variable groove width to carry out transmission of power, and when ratchet changed groove width, the contact radius of corresponding change driving wheel and follower upper driving band carried out speed change.These two kinds of stepless speed changes devicess have all that weight is large, complex structure, manufacturing is consuming time, cost is expensive, the limited characteristics of moment of torsion transmitted, and in productive life, some machinery or device need some stepless speed changes devicess with low cost, easy to manufacture, that requirements of installation space is little are installed, and CVT and hydraulic automatic speed variator are inapplicable to above-mentioned situation.
Summary of the invention
The purpose of this utility model is to provide a kind of stepless speed changes devices, and this device is applicable to require the machinery of stepless gear ratio.
The utility model adopts following technological scheme:
Stepless speed changes devices of the present utility model is comprised of housing, cap, left hemisphere axle, right half ball journal, transmission shaft, direction rotating shaft, drive axle support, flat key, bearing wheel flange, rubber pad, bearing cap and bearing.
The left hemisphere axle of described stepless speed changes devices and right half ball journal are installed on the housing, left hemisphere axle input power also drives the transmission shaft rotation, transmission shaft drives right half ball journal again and rotates and outputting power, change the angle of transmission shaft in the space by direction rotating shaft, realize the change of velocity ratio, when direction rotating shaft rotates continuously in the space, just realized the stepless change of this device.
Described stepless speed changes devices, the hollow spheres of left hemisphere axle and right half ball journal has identical radius, and its sphere center position overlaps.
Described stepless speed changes devices, its direction rotating shaft center line is by the centre of sphere of left and right half ball journal, and drive axle support is fixed on the direction rotating shaft, and transmission shaft is fixed on the drive axle support, and the rotation of direction rotating shaft turns over several angle with transmission shaft.
Described stepless speed changes devices, the hollow spheres profilogram of its end part of driving shaft profilogram and left hemisphere axle and right half ball journal coincide, and in movement process, transmission shaft remains that with the hollow spheres of left and right half ball journal line contacts; Between its bearing outer ring and the bearing cap rubber pad is installed, by the pretightening force adjusting transmission shaft of adjusting rubber pad and the pressure between the left and right hemisphere shaft hollow ball.
The beneficial effect of described stepless speed changes devices is: general structure is simple, and is easily manufactured, also can install at less working space, changes transmission shaft and namely satisfies different power requirementss from the pressure of half ball journal and the length of inter_curve.
Description of drawings
Fig. 1 is the sectional elevation view of the stepless speed changes devices of a mode of execution of the present utility model.
Fig. 2 is the plan view of the above-mentioned mode of execution of expression the utility model.
The drawing reference numeral explanation
1, housing, 2, cap, 3, the left hemisphere axle, 4, right half ball journal, 5, transmission shaft, 6, direction rotating shaft, 7, drive axle support, 8, flat key, 9, the bearing wheel flange, 10, rubber pad, 11, bearing cap, 12, angular contact bearing, 13, fixed block, 14, needle bearing
Embodiment
Below, based on description of drawings a kind of mode of execution of the present utility model.
Fig. 1 is the sectional elevation view that shows the stepless speed changes devices of a mode of execution of the present utility model.
As shown in Figure 1, a kind of stepless speed changes devices comprises housing 1, cap 2, left hemisphere axle 3, right half ball journal 4, transmission shaft 5, direction rotating shaft 6, drive axle support 7, flat key 8, bearing wheel flange 9, rubber pad 10, bearing cap 11, bearing 12, fixed block 13.
Such as Fig. 1, shown in Figure 2, left hemisphere axle 3 directly links to each other with bearing 12, bearing 12 is installed between housing 1 and the fixed block 13, bearing 12 outsides are equipped with rubber pad 10 and bearing cap 11, regulate the pretightening force that rubber pad 10 produces by the fixing bolt of bearing cap 11, produce the pressure that needs between left hemisphere axle 3 and the transmission shaft 5 thereby make, guarantee the two close contact in movement process; Placement and left hemisphere axle 3 between right half ball journal 4 and housing 1 and the fixed block 13 are similar; Direction rotating shaft 6 is installed on the housing 1, and drive axle support 7 is fixed on the direction rotating shaft 6 by flat key 8, and transmission shaft 5 is supported on the bearing 14, and bearing 14 is fixed on the drive axle support 7 by bearing wheel flange 9; Cap 2 is bolted on housing 1.
Left hemisphere axle 3 is passed to power in the external connection power source, and under the frictional force effect, left hemisphere axle 3 is with transmission shaft 5 motions, and transmission shaft 5 is with the right side half ball journal, 4 motions.
When transmission shaft 5 during at horizontal position, right half ball journal 4 is consistent with left hemisphere axle 3 rotational velocity, and velocity ratio is 1; When transmission shaft 5 rotated counterclockwise several angle with direction rotating shaft 6, the contact radius of left hemisphere axle 3 and transmission shaft 5 was greater than the contact radius of the right side half ball journal 4 with transmission shaft 5, and right half ball journal, 4 rotational velocity are high, and velocity ratio is less than 1; When transmission shaft 5 clockwise rotated several angle with direction rotating shaft 6, the contact radius of left hemisphere axle 3 and transmission shaft 5 was less than the contact radius of the right side half ball journal 4 with transmission shaft 5, and right half ball journal, 4 rotational velocity are low, and velocity ratio is greater than 1.
The distortion of mode of execution
In addition, the utility model is not limited to above-mentioned mode of execution, all details distortion that can realize the utility model function, improves and also is contained in the utility model.
For example; transmission shaft 5 is by bearing 14, drive axle support 7, bearing wheel flange 9; fit together with direction rotating shaft 6 and rotate; also can will form a whole after drive axle support 7, bearing wheel flange 9 and bearing 14 welding; transmission shaft 5 is rear with direction rotating shaft 6 rotations with this welding body assembling, and foregoing also is suitable for the utility model scope of patent protection.
Claims (5)
1. stepless speed changes devices, formed by housing, cap, left hemisphere axle, right half ball journal, transmission shaft, direction rotating shaft, drive axle support, flat key, bearing wheel flange, rubber pad, bearing cap, bearing, it is characterized in that left hemisphere axle and right half ball journal are installed on the housing, left hemisphere axle input power also drives the transmission shaft rotation, transmission shaft drives right half ball journal and rotates and outputting power, change the angle of transmission shaft in the space by direction rotating shaft, realize the change of velocity ratio, when during continuous rotational orientation rotating shaft, realizing the stepless change of this device in the space.
2. stepless speed changes devices according to claim 1 is characterized in that the hollow spheres of left hemisphere axle and right half ball journal has identical radius and the coincidence of its sphere center position.
3. stepless speed changes devices according to claim 1, it is characterized in that the direction rotating shaft center line is by the centre of sphere of left and right half ball journal, drive axle support is fixed on the direction rotating shaft, and transmission shaft is fixed on the drive axle support, and the rotation of direction rotating shaft turns over several angle with transmission shaft.
4. stepless speed changes devices according to claim 1 is characterized in that the end part of driving shaft profilogram matches with the profilogram of left hemisphere axle and right half ball journal respectively, and in movement process, transmission shaft remains that with left and right half ball journal line contacts.
5. stepless speed changes devices according to claim 1 is characterized in that between bearing and the bearing cap rubber pad being installed, and by regulating the pretightening force of rubber pad, regulates the pressure between transmission shaft and the left and right hemisphere shaft hollow ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142881 CN203258004U (en) | 2013-03-13 | 2013-03-13 | Stepless speed change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142881 CN203258004U (en) | 2013-03-13 | 2013-03-13 | Stepless speed change device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258004U true CN203258004U (en) | 2013-10-30 |
Family
ID=49470568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320142881 Expired - Fee Related CN203258004U (en) | 2013-03-13 | 2013-03-13 | Stepless speed change device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595314A (en) * | 2019-01-30 | 2019-04-09 | 济南大学 | Electric roller formula variable speed assembly for electric vehicle and its application method |
-
2013
- 2013-03-13 CN CN 201320142881 patent/CN203258004U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595314A (en) * | 2019-01-30 | 2019-04-09 | 济南大学 | Electric roller formula variable speed assembly for electric vehicle and its application method |
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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: 20131030 Termination date: 20140313 |