CN102011843A - Tenor-drum bevel-wheel shaft-controlled mechanical stepless speed changing device - Google Patents
Tenor-drum bevel-wheel shaft-controlled mechanical stepless speed changing device Download PDFInfo
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- CN102011843A CN102011843A CN200910195154XA CN200910195154A CN102011843A CN 102011843 A CN102011843 A CN 102011843A CN 200910195154X A CN200910195154X A CN 200910195154XA CN 200910195154 A CN200910195154 A CN 200910195154A CN 102011843 A CN102011843 A CN 102011843A
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Abstract
The invention belongs to a speed changing device in the filed of mechanical driving. A mechanical stepless speed changing device is characterized in that a power input shaft (1) and an output shaft (2) are a pair of tenor-drum bevel wheels which always keep mutual contact, and moreover, a larger ends and a small ends of the pair of tenor-drum bevel wheels are arranged oppositely, and axes of the pair of tenor-drum bevel wheels are positioned in the same plane; each tenor-drum bevel wheel is composed of circular shafts and a tenor-drum bevel body which are coaxial, wherein one shaft is a fixed shaft, and a bearing (3) of the shaft end of the shaft is fixed on a case; the other shaft is a variable shaft, and a bearing (3) of the shaft end of the shaft is restrained by a pre-tightening spring (4) and extra control force to enable an included angle of the axes of the two shafts to be varied; the power input shaft (1) and the output shaft (2) can be tenor-drum bevel wheels with the same or different specification; one shaft also can be a common bevel wheel or a cylindrical wheel; the shaft ends of the two shafts dispose suitable shaft-end bearings (3) and universal joint couplings (5). The invention has the advantages of fewer parts, simple structure, small impact on machinery and the like, and the stress state is superior to that of the traditional stepless speed changing device.
Description
(1) technical field
The invention belongs to mechanical transmission fields, particularly relate to a kind of mechanical stepless speed-changing device.
(2) background technique
In mechanical transmission fields, speed change all the time with the transmission symbiotic co-existence.
Step change transmission switches by clutch and gear, recently realizes speed change with different gears, and being in operation has the sudden change of speed unavoidably, instantaneous power interruption, causes and beat tooth and to the defectives such as impact of machinery easily.
Rigid mechanical stepless speed variator CVT (Continuously Variable Transmission) is based on the friction transferring power, realizes infinite variable speed by the radius of clean-up (direct-type or some indirection type CVT) that changes the input output wheel or the radius of clean-up (indirection type CVT) that changes breast wheel.
The V-type friction wheel CVT that automotive field extensively adopts at present, but then formed (shown in Figure 1A ∽ Fig. 1 C) by a pair of reducing V shaped wheel and metal driving belt.Have that part is few, volume is little, in light weight, higher advantages such as transmission efficiency are arranged, but also exist control to require high and defective such as component wear is big, being in operation very easily makes vehicle that the phenomenon of unsmooth, stall and unexpected speed change takes place.
Long conical CVT is as a kind of indirection type CVT technology, be by realizing infinite variable speed to controlling of the intermediate friction part between a pair of awl roller, the intermediate friction part can be friction wheel or friction band or even high elasticity steel loop band, can realize (as Fig. 2 A, shown in Fig. 2 B) by the mode of using the guide wheel guide rod to controlling then of middle friction member.Number of patent application 200910053161.6 " long-cone pulley shaft controlled mechanical electrodeless variable-speed device " discloses a kind of long conical CVT, and it then is to adopt spool (shown in Fig. 2 C) that the mode of control realizes to controlling of middle friction member.More original technology has had bigger improvement, and it is few to have parts, and structure such as more simplifies at characteristics.
Yet technological progress is endless, user of related domain and technician wish to have update, more simply, more desirable structure comes out; Wish to realize the purpose of same stepless change, but can make technical requirements and realize that cost reduces more.
(3) summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, speed change is easy, transmit reliable, the mechanical stepless speed-changing device that kinetic equation loss and component wear are little.
[technological scheme]
The objective of the invention is to be achieved through the following technical solutions.
In the drum cone pulley shaft controlled mechanical stepless speed-changing device, it is characterized in that: power input shaft and output shaft are that a pair of big small end disposes relatively, axis is in same plane and remain the middle drum type cone pulley that is in contact with one another with enough surface pressures; The drum type cone pulley is made up of the coaxial institute of circular shaft and middle drum type cone in described, and the outside normal direction of the bus of middle drum type cone is the arcuation of a projection; Wherein one is dead axle, and its axle end bearing and cabinet are fixed, and another axle is a flexible shaft, and its axle end bearing is subjected to preloading spring and adds the constraint of control force, and is radially removable, so that the angle of two axis is variable.
Described power input shaft and output shaft can be the middle bulging cone pulleys of same size, also can be the middle bulging cone pulleys of different size; One of them the axle in addition also can be common cone pulley or cylinder the wheel.
Axle end bearing and gimbal coupling that described power input shaft is suitable with the configuration of output shaft axle head.
Long conical CVT is by realizing infinite variable speed to controlling of the intermediate friction part between the awl roller (the intermediate friction part can be friction wheel or friction band or even high elasticity steel loop band) as a kind of indirection type CVT technology.Controlling then of middle friction member can be realized by the mode of using guide wheel guide rod even axle control.(as Fig. 2 A, shown in Fig. 2 B and Fig. 2 C)
The transmission of power in fact also can be realized by the direct contact of two cone pulleys behind the remodeling, and can omit medium tache (shown in Fig. 3 A ∽ Fig. 3 F).
Cone pulley is middle drum-type, as bullet cut.Because the effect of preloading spring, the drum cone pulley is remained be in contact with one another and enough surface pressures, the transmission of power can realize by special lubricating oil (traction fluid) formed anti-shearing oil film under surface pressure between cone pulley.The change of speed is regulated the diaxon angle by adding control force, thereby is changed its contact position, and the radius of clean-up that also promptly changes two cone pulleys realizes; Whole speed regulation process is stepless and level and smooth.
During practical application, input shaft can be fixed, only output shaft controlled just, the angular variation of output terminal axis then can adopt the connection gimbal coupling to solve.
During practical application, also can pass through preloading spring, input shaft and output shaft absolute presupposition a default velocity ratio position, when the need speed change, are only needed apply suitable manipulation force just to the flexible shaft two ends.
During practical application, middle bulging cone pulley, one of them axle that more can be by using different size even also can adopt common cone pulley or cylinder wheel is so that this device just has speedup or deceleration and has the angle of controlling and velocity ratio is the speciality of nonlinear change in speed-change process congenital before the speed change.
[beneficial effect]
Superiority of the present invention and beneficial effect find expression in: 1. parts are few, and structure is more simplified.2. not harsh to material requirements and designing requirement.Therefore realize that cost is low, easily processing, easy care maintenance.3. applied widely, to senior locomotive, or corresponding mechanical field all can adopt from simple rickshaw.4. control simple.Only be that the angle of diaxon is controlled, the velocity ratio that can realize ideal.5. component wear is little, and kinetic equation loss is low, the transmission efficiency height.6. force-bearing situation is better than existing stepless speed regulation, and gear range can exceed existing stepless speed-regulating device.7. speed change is level and smooth, and is more single because of controlling in when operation, can not make machinery that the phenomenon of unsmooth, stall and unexpected speed change takes place.8. when static, also can carry out the adjusting and the setting of velocity ratio when promptly rotating speed is zero.
(4) description of drawings
As Figure 1A ∽ Fig. 1 C is the extensively front view and the side view of the V shaped wheel stepless change CVT schematic representation of employing of motor field current; The moving direction of moving plate when wherein arrow is depicted as speed governing;
Fig. 2 A is long cone pulley stepless speed regulation principle schematic, adopts mobile friction wheel mode to carry out speed governing;
Fig. 2 B is long cone pulley stepless speed regulation principle schematic, adopts mobile friction band mode to carry out speed governing;
Fig. 2 C is the long cone pulley stepless speed regulation principle schematic of number of patent application 200910053161.6, thereby carries out speed governing for moving to rub to be with by the axle control, in change diaxon angle mode;
Fig. 3 A ∽ Fig. 3 C is the cone pulley shaft controlled stepless speed regulation principle schematic of drum among the present invention, and two cone pulleys adopt identical specification;
Fig. 3 D ∽ Fig. 3 F is the cone pulley shaft controlled stepless speed regulation principle schematic of drum among the present invention, and two cone pulleys adopt different specifications;
Fig. 4 is a kind of mode of execution of drum cone pulley shaft controlled mechanical stepless speed-regulating device among the present invention, and input shaft is a dead axle, and output shaft is a flexible shaft, and the two ends of flexible shaft are furnished with preloading spring, and by the outside outputting power of gimbal coupling;
Among the figure: 1-input shaft, 2-output shaft, 3-axle end bearing, 4-preloading spring, 5-gimbal coupling.
(5) embodiment
[embodiment] application on Motor Vehicle
Further describe structure of the present invention below in conjunction with accompanying drawing.
Middle drum cone pulley shaft controlled mechanical stepless speed-changing device is characterized in that: power input shaft 1 disposes for a pair of big small end is relative with output shaft 2, axis is in same plane and remain the middle drum type cone pulley that is in contact with one another with enough surface pressures; The drum type cone pulley is made up of the coaxial institute of circular shaft and middle drum type cone in described; Wherein one is dead axle, and its axle end bearing 3 is fixed with cabinet, and another axle is a flexible shaft, and its axle end bearing 3 is subjected to preloading spring 4 and adds the constraint of control force, so that the angle of two axis is variable.
Described power input shaft 1 and output shaft 2 can be the middle bulging cone pulleys of same size, also can be the middle bulging cone pulleys of different size; One of them axle even also can be common cone pulley or cylinder wheel makes this device in application with add more selection is arranged man-hour, to adapt to the needs of different speed change occasions.
Axle end bearing 3 and gimbal coupling 5 that described input shaft 1 is suitable with the configuration of output shaft 2 axle heads.
As shown in Figure 4, setting input shaft 1 is stationary axle, and output shaft 2 is a flexible shaft.Wherein, the two end axles bearing and the cabinet of input shaft 1 are fixed, the bearings at both ends 3 of output shaft 2 is a joint shaft bearing, bearing 3 outer ring supports are defined in the rail groove of cabinet both sides, allow it radially to move when controlled, then do not retrained when adding control by preloading spring 4, make input shaft 1 and output shaft 2 two in the drum cone pulley remained and be in contact with one another and enough surface pressures, be furnished with special lubricating oil (traction fluid) between cone pulley, the transmission of power then realizes by this traction fluid formed anti-shearing oil film under surface pressure, thereby makes the transmission of power effective and continuous.The change of speed by adjusting diaxon angle, thereby changes its contact position, and the radius of clean-up that also promptly changes two cone pulleys realizes; Whole speed regulation process is stepless and level and smooth.
One end of output shaft 2 (containing input shaft 1) adopt thrust-bearing when stoping transmission by the axial displacement that axial thrust load was caused, the other end then adopts free bearing to scurry a phenomenon to solve because of what the axis change caused.
The angular variation of output terminal axis then adopts connection gimbal coupling 5 to solve.
Default by to preloading spring 4 is when work is controlled (or can revert to automatically) big speed ratio deceleration regime as its default setting in the time of this device can being started.
When vehicle launch, this device is exported with high pulling torque big speed ratio (being deceleration regime), variation or driving requirement along with driving torque, control system can apply control force to the both ends or one end of output shaft 2, to change the angle of input and output shaft, thereby change the contact position (being the radius of clean-up of two-wheeled) of drum cone pulley in two, reach the purpose that changes velocity ratio; When adding control force when cancelling, because the effect of preloading spring 4, this device will recover its default default setting automatically.
During practical application, middle bulging cone pulley, one of them axle that more can be by using different size even also can adopt common cone pulley or cylinder wheel is so that this device just has speedup or deceleration and has the angle of controlling and velocity ratio is the speciality of nonlinear change in speed-change process congenital before the speed change.In addition, when static, this device also can carry out the adjusting and the setting of velocity ratio freely when promptly rotating speed was zero.
Claims (4)
1. middle bulging cone pulley shaft controlled mechanical stepless speed-changing device is characterized in that: power input shaft (1) disposes for a pair of big small end is relative with output shaft (2), axis is in same plane and the surface remains the middle drum type cone pulley that is in contact with one another; The drum type cone pulley is made up of the coaxial institute of circular shaft and middle drum type cone in described, and the outside normal direction of the bus of middle drum type cone is the arcuation of a projection; Wherein one is dead axle, and its axle end bearing (3) is fixed with cabinet, and another axle is a flexible shaft, and its axle end bearing (3) is radially removable, and the angle of two axis is variable.
2. drum cone pulley shaft controlled mechanical stepless speed-changing device in according to claim 1, it is characterized in that: described power input shaft (1) and output shaft (2) can be the middle bulging cone pulleys of same size, also can be the middle bulging cone pulleys of different size.
3. drum cone pulley shaft controlled mechanical stepless speed-changing device in according to claim 1 and 2 is characterized in that: axle also can be that bus is that the common cone pulley or the cylinder of straight line taken turns one of in described power input shaft (1) and the output shaft (2).
4. drum cone pulley shaft controlled mechanical stepless speed-changing device in according to claim 1, it is characterized in that: the axle end bearing of described flexible shaft (3) radially disposes preloading spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910195154XA CN102011843A (en) | 2009-09-04 | 2009-09-04 | Tenor-drum bevel-wheel shaft-controlled mechanical stepless speed changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910195154XA CN102011843A (en) | 2009-09-04 | 2009-09-04 | Tenor-drum bevel-wheel shaft-controlled mechanical stepless speed changing device |
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| Publication Number | Publication Date |
|---|---|
| CN102011843A true CN102011843A (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910195154XA Pending CN102011843A (en) | 2009-09-04 | 2009-09-04 | Tenor-drum bevel-wheel shaft-controlled mechanical stepless speed changing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587039A (en) * | 2019-09-20 | 2019-12-20 | 付国忠 | Industrial robot gear equipment |
| CN112332601A (en) * | 2020-10-20 | 2021-02-05 | 赵泽碧 | Transmission real-time control piece |
| CN112495219A (en) * | 2020-11-27 | 2021-03-16 | 吴念芝 | Equipment for uniformly stirring chemical raw materials and stepless speed regulation |
| CN112933509A (en) * | 2021-01-29 | 2021-06-11 | 上海寅生科技有限公司 | Convenient electrodeless counter weight mechanism of fitness equipment |
-
2009
- 2009-09-04 CN CN200910195154XA patent/CN102011843A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587039A (en) * | 2019-09-20 | 2019-12-20 | 付国忠 | Industrial robot gear equipment |
| CN110587039B (en) * | 2019-09-20 | 2020-08-04 | 佛山拓研精密机械有限公司 | Industrial robot gear equipment |
| CN112332601A (en) * | 2020-10-20 | 2021-02-05 | 赵泽碧 | Transmission real-time control piece |
| CN112495219A (en) * | 2020-11-27 | 2021-03-16 | 吴念芝 | Equipment for uniformly stirring chemical raw materials and stepless speed regulation |
| CN112933509A (en) * | 2021-01-29 | 2021-06-11 | 上海寅生科技有限公司 | Convenient electrodeless counter weight mechanism of fitness equipment |
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Application publication date: 20110413 |