CN208587466U - A kind of cone Belt-type Adjustable-speed Drive device - Google Patents
A kind of cone Belt-type Adjustable-speed Drive device Download PDFInfo
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- CN208587466U CN208587466U CN201821131119.2U CN201821131119U CN208587466U CN 208587466 U CN208587466 U CN 208587466U CN 201821131119 U CN201821131119 U CN 201821131119U CN 208587466 U CN208587466 U CN 208587466U
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Abstract
The utility model discloses a kind of cone Belt-type Adjustable-speed Drive devices, including a center cone pulley and the first side cone pulley and second side cone pulley that are arranged in center cone pulley two sides, the first side cone pulley and second side cone pulley pass through spline respectively and are socketed in the first side axle and the second side axle；It is socketed with the transmission belt chain of annular between center cone pulley and the first side cone pulley and second side cone pulley conical surface, forms contact frictional drive face；The cone Belt-type Adjustable-speed Drive device of the utility model is driven using the band chain between side cone pulley and center cone pulley, and gearing friction face increases to four faces, and higher torque can be transmitted in using the range of speeds；When transmission belt chain is moved along the conical surface is axially consecutive, the corresponding radius of the conical surface with chain side also consecutive variations, transmission ratio also can correspondingly stepless variation, to realize variable speed；It is simple with structure, compact, reliable performance, advantage at low cost.
Description
Technical field
The utility model relates to a kind of transmission device, in particular to a kind of cone Belt-type Adjustable-speed Drive device belongs to biography
Dynamic apparatus field.
Background technique
Well known stepless transmission transmission is usually divided to towed and frictional two kinds of forms, and towed transmission passes through contact surface
Between liquid medium molecular force transmit power；Friction-type drive transmits power by the frictional force of contact surface.Towed transmission nothing
Grade speed changer typical case draws ring type stepless transmission with being exactly, its advantage is that can with arranged in series multiple groups bail, transmitting
Torque is big, high-efficient, but the disadvantage is that device thermic load is high, liquid medium physicochemical properties are required it is very high, transmitting revolving speed compared with
Low, gearbox is bulky.Friction type stepless speed changer typical case passes through axial tune with being exactly metal V variable v-belt drive
V-belt groove width is saved, the radius of driving wheel and driven wheel V with practical contact surface is controlled, continuously adjusts transmission ratio to realize.Gold
It is compact-sized to belong to V variable v-belt drive, easy to control, energy high-speed drive, but its component is more, structure is complicated, and cannot transmit
Excessively high torque, it is anxious to accelerate and be easy to skid when transmitting large torque, therefore it is chiefly used in the gear of smaller displacement engine；Separately
Outside, metal tape machining accuracy and compression control require high, and cost is difficult to control.
Utility model content
The utility model proposes a kind of cone Belt-type Adjustable-speed Drive devices, solve stepless transmission in the prior art
Structure is complicated existing for transmission device, be easy skidding, metal tape machining accuracy and compression control require high caused cost difficult
The problem of to control.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of cone Belt-type Adjustable-speed Drive device of the utility model, including center cone pulley and it is arranged in center
The the first side cone pulley and second side cone pulley of cone pulley two sides, first side cone pulley and second side cone pulley are socketed in by spline respectively
In first side axle and the second side axle, and first side cone pulley and second side cone pulley can be slided axially, so as to adjust it
Conical surface gap between the cone pulley of center；It is socketed between the center cone pulley and the first side cone pulley and second side cone pulley conical surface
There is the transmission belt chain of annular, forms contact frictional drive face.
As a kind of optimal technical scheme of the utility model, first side axle and the second side axle are along center cone wheel axle center
Line is arranged symmetrically in the two sides of center cone pulley.
As a kind of optimal technical scheme of the utility model, first side axle and the second side axle with center cone wheel shaft
Axial line it is all parallel.
As a kind of optimal technical scheme of the utility model, the center cone pulley and the first side cone pulley and second side cone pulley
Cone-apex angle be equal.
As a kind of optimal technical scheme of the utility model, the center cone pulley and the first side cone pulley and second side cone pulley
It is positioned opposite, form equidistant conical surface gap.
As a kind of optimal technical scheme of the utility model, first side axle and the second side axle and center cone pulley are all
It is mounted on same rigid box by bearing.
As a kind of optimal technical scheme of the utility model, one end of first side axle and the second side axle is equipped with dynamic
Power synchronizes input gear.
As a kind of optimal technical scheme of the utility model, center cone pulley one end is equipped with power output gear.
As a kind of optimal technical scheme of the utility model, the first side cone pulley and second side cone pulley also adjust machine with pressure
Structure is connected, and pressure regulating mechanism includes the first spring, the first pre-load nut, second spring and the second pre-load nut.
As a kind of optimal technical scheme of the utility model, first side cone pulley and second side cone pulley and the first side axle
And second matched respectively by spline between side axle, first side cone pulley and second side cone pulley and the first side axle and second side
It can slide axially between axis, pressure regulating mechanism can apply an axial thrust by big end to small end with opposite side cone pulley, from
And compress the transmission belt chain between the first side cone pulley and second side cone pulley and the center cone pulley conical surface.
The utility model beneficial effect achieved is: the cone Belt-type Adjustable-speed Drive device of the utility model utilizes side
Band chain between cone pulley and center cone pulley is driven, and gearing friction face increases to four faces, can be using in the range of speeds
Transmit higher torque；When transmission belt chain is moved along the conical surface is axially consecutive, the corresponding radius of the conical surface with chain side also connects
Continuous variation, transmission ratio also can correspondingly stepless variation, to realize variable speed；It is simple with structure, compact, reliable performance,
Advantage at low cost.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of the schematic diagram of the section structure of cone Belt-type Adjustable-speed Drive device of the utility model；
Fig. 2 is a kind of three-dimensional structure diagram of embodiment with bilateral cone pulley of the utility model；
Fig. 3 is the side cone pulley group example cross-sectional view of a spring precompressed compact form of the utility model；
Fig. 4 is the Anatomical Structure figure of the single side cone pulley of the utility model；
Fig. 5 is the structure sectional view of the center cone pulley of the utility model；
In figure: 1, the first side cone pulley；2, the first side axle；3, first bearing；4, transmission belt chain；5, second bearing；6, third
Bearing；7, the second side axle；8, second side cone pulley；9, the first spring；10, the first pre-load nut；11, fourth bearing；12, the 5th axis
It holds；13, center cone pulley；14, second spring；15, the second pre-load nut；16,6th bearing；17, throw-over driving mechanism.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, 2, a kind of cone Belt-type Adjustable-speed Drive device of the utility model includes one group of first side cone pulley 1
With second side cone pulley 8 and a center cone pulley 13, the identical vertex of a cone is all had between all side cone pulley and center cone pulley 13
Angle θ；First side cone pulley 1 and 8 Parallel Symmetric of second side cone pulley are centrally located 13 two sides of cone pulley, and opposite with center cone pulley 13
Arrangement forms the equal conical surface gap of spacing between side cone pulley and center cone pulley 13；4 ring cloth of transmission belt chain conical surface gap it
Between.
Single group side cone wheel group structure is as shown in Figure 3, Figure 4, and the first side cone pulley 1 is socketed in the first side axle 2 by longitudinal chute
On, i.e. the first side cone pulley 1 and the first side axle 2 pass through spline fitted；First side cone pulley 1 can slide axially along the first side axle 2,
The first side cone pulley 1 and the first side axle 2 circumferentially rotate synchronously simultaneously.
Cone pulley 13 structure in center is as shown in figure 5, center cone pulley 13 and axis are made of one；Center cone pulley 13 and side cone pulley group are logical
Bearing is crossed to be mounted on same rigid box.
In example, two groups of side cone pulley group Parallel Symmetrics are mounted on 13 two sides of center cone pulley, and the conical surface and center cone pulley 13 are opposed；
And side cone pulley and 13 height of center cone pulley are equal, cone angle is θ；In this way between side cone pulley and the conical surface of center cone pulley 13 between formation etc.
Away from conical surface gap, transmission belt chain 4 is arranged between the first side cone pulley 1 and second side cone pulley 8 and the conical surface of center cone pulley 13, and two
Face with 13 taper-face contact of the side cone pulley conical surface and center cone pulley, forms frictional drive face respectively；It is bored in the first side cone pulley 1 and second side
The big end of wheel 8 is equipped with an inner cavity, as shown in figure 4, having 14 sets of first spring 9 and second spring to exist in the inner cavity respectively
In first side axle 2 and the second side axle 7, one end of spring is pressed against in the cone pulley internal chamber wall of side, and the other end pre-tightens spiral shell with first respectively
Mother 10 and the second pre-load nut 15 are in contact, and the first pre-load nut 10 and the second pre-load nut 15 pass through one section of screw thread in side axle
It matches；The taper-face contact of transmission belt chain 4 and side cone pulley, center cone pulley 13 is kept, rotates pre-load nut, so that it may adjust spring
Decrement, so as to adjust side cone pulley and center cone pulley 13 to the contact pressure of transmission belt chain 4；Therefore, spring and pre-load nut
Just constitute a kind of pressure regulating mechanism；Spline fitted mechanism between side cone pulley and side axle limit the two can along axial direction
Opposite sliding, provides the freedom degree of pre-pressing in range processed；This design has ensured that contact surface remains uniform pressure, together
When side cone pulley and side axle between axial movement also can compensate for that manufacture, device thermal expansion is public in installation error and operation process
Difference can effectively improve component's life and transmission robustness.
Transmission belt chain 4 corresponding first side cone pulley 1 and second side cone pulley 8 in a certain axial position is different from center cone pulley 13
Contact radius, since side cone pulley and center cone pulley 13 are along axial diameter consecutive variations, transmission belt chain 4 is in axially consecutive movement
When, consecutive variations also occur for the center cone pulley radius and side cone pulley radius ratio of corresponding contact, to realize stepless change transmission
Than；For this purpose, the utility model is provided with a straight line driving mechanism to transmission belt chain 4, transmission belt chain 4 is controlled along axial straight line
Movement, while transmission belt chain 4 can freely turn around center cone pulley 13.When execution position controls, each driving member turns in high speed
In dynamic, therefore the resistance very little of straight line driving mechanism, transmission ratio linear change, stable drive, efficiently is ensured.
Above-mentioned component constitutes the core assembly part of the utility model infinitely variable speed transmission, side cone pulley group and center cone
Wheel 13 is mounted on same rigid box by bearing, is configured the mechanisms such as well known clutch, differential and is constituted complete variable speed
Device.
The working principle of the utility model is further illustrated below.
Fig. 1 clearly demonstrates the structure and working principle of the utility model: from structurally, center cone pulley 13 and first
Side cone pulley 1 and 8 axis of second side cone pulley parallel arrangement, cone-apex angle is opposite, and center cone pulley 13 and side cone pulley are formed between the equidistant conical surface
Gap；Transmission belt chain 4 is just arranged between conical surface gap, and the two sides of transmission belt chain 4 is bored with the center cone pulley conical surface and side cone pulley respectively
Face contact；Because transmission belt chain 4 has the contact radius at certain width, with different in width when taper-face contact also not identical；
Under current contact position, the conical surface and the diameter with cone pulley corresponding to the point for not having Relative sliding between chain are in contact line
Actual transmission diameter is defined as the equivalent diameter of transmitting of the transmission belt chain 4 at this position；If side cone pulley is wheel for inputting, small
End equivalent diameter is ds；Center cone pulley is output wheel, and small end equivalent diameter is dc(for convenience of calculating, side cone is assumed in above-mentioned definition
It is concordant with center cone pulley small end bottom surface to take turns big end bottom surface)；Transmission belt chain along it is axial can driving trip be L, in certain position Lx(therefrom
Heart cone pulley big end rises, along axial distance) corresponding side cone pulley equivalent diameter is din, corresponding to center cone pulley equivalent diameter is
dout, then this position gear transmitting transmission ratio beIt is driven in entire driving trip
Than
Under working condition, power is inputted by same input shaft, is respectively transmitted on the first side cone pulley 1 and second side cone pulley 8,
This movement tendency is passed through inside and center cone pulley by the outside for the transmission belt chain 4 that side cone pulley conical surface friction contacts, band chain
13 contact conical surface friction passes to center cone pulley 13；When continuous transmission, ideally formed side cone pulley, transmission belt chain 4,
Center cone pulley 13 synchronizes the state that equal linear speeds roll；Straight line driving mechanism driving transmission belt chain move continuously in axial direction, change with
Contact the equivalent radius corresponding with side cone pulley of center cone pulley 13, corresponding transmission ratio is also continuously varied to form variable speed.
For friction-type drive in the case where the coefficient of friction of contact surface is fixed, the size that can transmit torque depends on contact
The size of face area and the size of contact surface normal pressure, transmitting torque can be effectively increased by increasing contact pressure, but power simultaneously
Load and thermic load also will increase, and require to improve to the physical and chemical performance of component and lubricant medium, and can reduce transmission efficiency；Therefore it connects
The pressure of contacting surface cannot infinitely increase, but take a reasonable design value；Another effective ways for increasing driving torque is to increase
Add the frictional contact surface area of transmission；Two groups of side cone pulleys are contacted with transmission belt chain 4 in this example, and rubbing surface is expanded to twice；Rationally
Arrangement and the flexibility of optimization design transmission belt chain can increase side cone pulley group, to increase contact surface area, obtain bigger
Torque transmitting capabilities；Meanwhile the parameters such as end diameter, cone-apex angle, range-adjustable for optimizing and revising taper cone pulley, ideal can be obtained
Gear range.
The utility model uses the driving adjustment element of taper cone pulley and transmission belt chain 4 as stepless transmission, and structure is than tradition
Metal V band stablize, and compact simple, cost advantage is clearly；Multiple groups side cone pulley group is evenly arranged design, effectively
Increase driving contact area, bigger torque can be transmitted, and bear big torque mutation.Pressure on the cone pulley of side is adjusted
Mechanism is ensureing that dynamic compensates technique and operating deviation while persistently compression, effectively improves transmission irregularity and device longevity
Life；Straight spur unit directly drives band chain and realizes variable speed, and executing agency is very simple, to improve efficiency, ensures
Reliability.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of cone Belt-type Adjustable-speed Drive device, which is characterized in that including a center cone pulley (13) and be arranged in
The first side cone pulley (1) and second side cone pulley (8) of center cone pulley (13) two sides, first side cone pulley (1) and second side cone pulley
(8) it is socketed in the first side axle (2) and the second side axle (7) by spline respectively, and first side cone pulley (1) and second side cone
Wheel (8) can be slided axially, so as to adjust their conical surface gaps between center cone pulley (13)；The center cone pulley
(13) it is socketed with the transmission belt chain (4) of annular between the first side cone pulley (1) and second side cone pulley (8) conical surface, forms contact
Frictional drive face.
2. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that first side axle
(2) and the second side axle (7) is arranged symmetrically in the two sides of center cone pulley (13) along center cone pulley (13) axial line.
3. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that first side axle
(2) and the second side axle (7) is all parallel with the axial line of center cone pulley (13) axis.
4. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that the center cone pulley
(13) cone-apex angle with the first side cone pulley (1) and second side cone pulley (8) is equal.
5. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that the center cone pulley
(13) positioned opposite with the first side cone pulley (1) and second side cone pulley (8), form equidistant conical surface gap.
6. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that first side axle
(2) it is all mounted on same rigid box by bearing with the second side axle (7) and center cone pulley (13).
7. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that first side axle
(2) and one end of the second side axle (7) is equipped with power synchronous input gear.
8. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that the center cone pulley
(13) one end is equipped with power output gear.
9. a kind of cone Belt-type Adjustable-speed Drive device according to claim 1, which is characterized in that the first side cone pulley (1)
Also it is connected with pressure regulating mechanism with second side cone pulley (8), pressure regulating mechanism includes the first spring (9), the first preload spiral shell
Female (10), second spring (14) and the second pre-load nut (15).
10. a kind of cone Belt-type Adjustable-speed Drive device according to claim 9, which is characterized in that the first side cone
It is matched respectively by spline between wheel (1) and second side cone pulley (8) and the first side axle (2) and the second side axle (7), described first
It can slide axially between side cone pulley (1) and second side cone pulley (8) and the first side axle (2) and the second side axle (7), pressure adjusts machine
Structure can apply an axial thrust by big end to small end with opposite side cone pulley, to compress the first side cone pulley (1) and second side cone
Take turns the transmission belt chain (4) between (8) and center cone pulley (13) conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821131119.2U CN208587466U (en) | 2018-07-12 | 2018-07-12 | A kind of cone Belt-type Adjustable-speed Drive device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821131119.2U CN208587466U (en) | 2018-07-12 | 2018-07-12 | A kind of cone Belt-type Adjustable-speed Drive device |
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| Publication Number | Publication Date |
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| CN208587466U true CN208587466U (en) | 2019-03-08 |
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| CN201821131119.2U Active CN208587466U (en) | 2018-07-12 | 2018-07-12 | A kind of cone Belt-type Adjustable-speed Drive device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679181A (en) * | 2018-07-12 | 2018-10-19 | 上海欣原汽车技术开发有限公司 | A kind of cone Belt-type Adjustable-speed Drive device |
-
2018
- 2018-07-12 CN CN201821131119.2U patent/CN208587466U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679181A (en) * | 2018-07-12 | 2018-10-19 | 上海欣原汽车技术开发有限公司 | A kind of cone Belt-type Adjustable-speed Drive device |
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