CN202484229U - Draper-type continuously variable transmission - Google Patents
Draper-type continuously variable transmission Download PDFInfo
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- CN202484229U CN202484229U CN2012200271866U CN201220027186U CN202484229U CN 202484229 U CN202484229 U CN 202484229U CN 2012200271866 U CN2012200271866 U CN 2012200271866U CN 201220027186 U CN201220027186 U CN 201220027186U CN 202484229 U CN202484229 U CN 202484229U
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- cone pulley
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- pulley
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Abstract
The utility model relates to a draper-type continuously variable transmission which is used to alter a revolving speed of a drive system and can be applied to speed shifting mechanisms such as automobiles and aerogenerators. The draper-type continuously variable transmission has the advantages of being simple in structure, deft in design, and capable of improving loading conditions of a belt wheel and a shafting and simplifying axial feed mechanism and control system. Axial movement of a movable half cone wheel of a driving pulley and axial movement of a movable half cone wheel of a driven pulley are simultaneously achieved through only one axial feed mechanism.
Description
Technical field
The present invention relates to a kind of variable v-belt drive, be used for changing the rotating speed in the transmission system, can be applicable to the gear of automobile and wind-driven generator etc.
Background technique
Variable v-belt drive is a kind of belt wheel driving mechanism; Through moving axially the movable half cone wheel of driving and driven belt wheel; Variable velocity zone (belt or metal tape) is radially slided in the V-type groove that two cone pulleys constitute; Continuously change the Pitch radius of driven wheel, realize stepless change, the ratio of the Pitch radius of driven wheel is a transmission speed ratio.Existing Belt-type Adjustable-speed; Moving axially of the movable half cone wheel of its driving and driven belt wheel is that 2 axial advance mechanisms by laying respectively on the master and slave moving axis realize; Make that axial advance mechanism itself and its control system are very complicated, belt wheel is that stressing conditions is also very complicated with axle.
Summary of the invention
The objective of the invention is to: improving belt wheel is stressing conditions with axle, simplifies axial advance mechanism and control system, only makes the movable half cone wheel of driving and driven belt wheel realize simultaneously moving axially through 1 axial advance mechanism.
The present invention is achieved in that
A kind of variable v-belt drive, comprise driving shaft, initiatively decide cone pulley, initiatively movable cone pulley, variable velocity zone, driven shaft, drivenly decide cone pulley, driven movable cone pulley, frame and body link.Power is imported into by driving shaft, and driving shaft passes through Bearing Installation on body, and the driving shaft axial restraint is circumferentially rotatable.Initiatively decide cone pulley and be fixed on the driving shaft, initiatively movable cone pulley is installed on the driving shaft, limits its rotary freedom by the key that is installed on the driving shaft, and initiatively movable cone pulley is moving at axially-displaceable.Initiatively decide cone pulley and initiatively movable cone pulley, constitute the V-type driving pulley of band transmission.Driven shaft through Bearing Installation on body, the power behind the driven shaft axial restraint, circumferentially rotatable and output variable speed.Drivenly decide cone pulley and be fixed on the driven shaft, driven movable cone pulley is installed on the driven shaft, limits its rotary freedom by the key that is installed on the driven shaft, and driven movable cone pulley is moving at axially-displaceable.Drivenly decide cone pulley and driven movable cone pulley, constitute the V-type driven pulley of band transmission.Variable velocity zone connects V-type driving pulley and V-type driven pulley, constitutes tape handler.Initiatively movable cone pulley links through the upperpush rod of up-thrust bearing with the interlock frame, and driven movable cone pulley links through the down-pressed pole of lower thrust-bearing with the interlock frame.Interlock frame shape is similar Z-shaped, axially can move up and down, and the thrust-bearing that interlock frame rotary freedom is installed in the upper and lower depression bar limits.When the interlock frame moved up, the down-pressed pole of interlock frame promoted driven movable cone pulley and moves up, and the V-type groove of V-type driven pulley is narrowed down, and the variable velocity zone that contacts with the V-type driven pulley deviates from the axle center and outwards moves, and the actual Pitch radius of V-type driven pulley becomes big.After the upperpush rod of interlock frame moved up, under the effect of variable velocity zone tension force, the variable velocity zone that contacts with the V-type driving pulley moved to the axle center, and the actual Pitch radius of V-type driving pulley diminishes, thereby output speed is diminished; When the interlock frame moved down, the upperpush rod of interlock frame promoted initiatively movable cone pulley and moves down, and the V-type groove of V-type driving pulley is narrowed down, and the variable velocity zone that contacts with the V-type driving pulley deviates from the axle center and outwards moves, and the actual Pitch radius of V-type driving pulley becomes big.After the down-pressed pole of interlock frame moved down, under the effect of variable velocity zone tension force, the variable velocity zone that contacts with the V-type driven pulley moved to the axle center, and the actual Pitch radius of V-type driven pulley diminishes, thereby made output speed become big, realized stepless change.
Interlock frame shape is similar Z-shaped, is made up of upperpush rod, straight-bar, down-pressed pole etc., and upperpush rod one end is enclosed within on the driving shaft; Push down the outer end of initiatively movable cone pulley through up-thrust bearing; The axial freedom of the initiatively movable cone pulley of restriction, up-thrust bearing is enclosed within on the driving shaft, and the up-thrust bearing lower end links with initiatively movable cone pulley; The up-thrust bearing upper end links with the upperpush rod of interlock frame; During work and the bearing bracket stand that links of initiatively movable cone pulley rotate with the V-type driving pulley, the bearing bracket stand that is installed in the upperpush rod does not rotate.The upperpush rod the other end is fixed on the straight-bar upper end; Down-pressed pole one end is enclosed within on the driven shaft, pushes down the outer end of driven movable cone pulley through lower thrust-bearing, limits the axial freedom of driven movable cone pulley; Lower thrust-bearing is enclosed within on the driven shaft; Lower thrust-bearing upper end and driven movable cone pulley link, and the lower thrust-bearing lower end links with the down-pressed pole of interlock frame, during work; The bearing bracket stand that links with driven movable cone pulley rotates with the V-type driven pulley, and the bearing bracket stand that is installed in the down-pressed pole does not rotate.The down-pressed pole the other end is fixed on the straight-bar lower end.Straight-bar is in the intermediate portion of interlock frame, and the straight-bar two ends are processed with screw thread and screw mandrel connects cooperation, and it is secondary to constitute screw mandrel/nut connection, and the screw thread in the straight-bar also can be replaced by the screw thread inserter.Screw mandrel passes through Bearing Installation on body, and axial restraint is circumferentially rotatable.When the forward and reverse rotation of screw mandrel, can drive the interlock frame moves up and down.Screw mandrel plays and promotes the axially movable effect of interlock frame, can be replaced by driving mechanisms such as hydraulic pressure thick sticks.
Be installed in the interlock frame upperpush rod in up-thrust bearing pressing pressure spring, pressure spring is compressed by spring seat, spring seat is compressed by hold-down bolt, hold-down bolt is screwed in the upperpush rod.Can the Regulation spring seat and the axial position of initiatively movable cone pulley through regulating hold-down bolt, and then regulate the tension force of variable velocity zone, and make belt wheel press variable velocity zone all the time in working procedure.This variable velocity zone tension force controlling mechanism also can design in down-pressed pole.
Body is fixed on the axis motionless, and after body was taken away shell, main skeleton remained unchanged, and is convenient to change variable velocity zone.
Maximum characteristics of the present invention are:
The present invention is simple in structure, design ingenious, can improve belt wheel with the axle be stressing conditions, can simplify the axial advance mechanism and the control mechanism of variable v-belt drive.
Description of drawings
Fig. 1 is an assembling schematic representation of the present invention.
Fig. 2 is that the link master of frame of the present invention looks schematic representation.
Fig. 3 is the link schematic top plan view of frame of the present invention.
Fig. 4 is the local enlarged diagram of up-thrust bearing assembling of the present invention.
Fig. 5 is that axle of the present invention is the schematic representation of location arrangements.
Among the figure, 1-body, 2-are initiatively decided cone pulley, 3-variable velocity zone, the initiatively movable cone pulley of 4-, 5-up-thrust bearing; 6-pressure spring, 7-hold-down bolt, 8-driving shaft, the 9-frame that links, the 91-upperpush rod; The 92-straight-bar, the 93-down-pressed pole, 10-is driven to decide cone pulley, the driven movable cone pulley of 11-, 12-lower thrust-bearing; The 13-bearing, 14-driven shaft, 15-leading screw, 16-axis, 17-spring seat.
Embodiment
Below in conjunction with Figure of description and embodiment the present invention is further specified, but the scope that the present invention protected do not limit to therewith, the equivalence that those skilled in the art can expect easily changes and distortion all belongs to protection scope of the present invention.
Shown in Fig. 1 to 5, a kind of variable v-belt drive, comprise driving shaft 8, initiatively decide cone pulley 2, initiatively movable cone pulley 4, variable velocity zone 3, driven shaft 14, drivenly decide cone pulley 10, driven movable cone pulley 11, frame 9 and body 1 link.Power is imported into by driving shaft 8, and driving shaft 8 passes through Bearing Installation on body 1, and driving shaft 8 axial restraints are circumferentially rotatable.Initiatively decide cone pulley 2 and be fixed on the driving shaft 8, initiatively movable cone pulley 4 is installed on the driving shaft, limits its rotary freedom by the key that is installed on the driving shaft 8, and initiatively movable cone pulley 4 is moving at axially-displaceable.Initiatively decide cone pulley 2 and initiatively movable cone pulley 4, constitute the V-type driving pulley of band transmission; Driven shaft 14 through Bearing Installation on body 1, the power behind driven shaft 14 axial restraints, circumferentially rotatable and output variable speed.Drivenly decide cone pulley 10 and be fixed on the driven shaft 14, driven movable cone pulley 11 is installed on the driven shaft 14, limits its rotary freedom by the key that is installed on the driven shaft 14, and driven movable cone pulley 11 is moving at axially-displaceable.Drivenly decide cone pulley 10 and driven movable cone pulley 11, constitute the V-type driven pulley of band transmission.Variable velocity zone 3 connects V-type driving pulley and V-type driven pulley, constitutes tape handler.Initiatively movable cone pulley 4 links through the upperpush rod 91 of up-thrust bearing 5 with interlock frame 9, and driven movable cone pulley 11 links through the down-pressed pole 93 of lower thrust-bearing 12 with interlock frame 9.Interlock frame 9 shapes are similar Z-shaped, axially can move up and down, and the thrust-bearing that interlock frame 9 rotary freedoms are installed in the upper and lower depression bar limits.When interlock frame 9 moves up; The down-pressed pole 93 of interlock frame 9 promotes driven movable cone pulley 11 and moves up; The V-type groove of V-type driven pulley is narrowed down, and the variable velocity zone 3 that contacts with the V-type driven pulley deviates from the axle center and outwards moves, and the actual Pitch radius of V-type driven pulley becomes big.After the upperpush rod 91 of interlock frame 9 moved up, under the effect of variable velocity zone tension force, the variable velocity zone that contacts with the V-type driving pulley 3 moved to the axle center, and the actual Pitch radius of V-type driving pulley diminishes, thereby output speed is diminished; When interlock frame 9 moves down; The upperpush rod 91 of interlock frame 9 promotes initiatively movable cone pulley 4 and moves down; The V-type groove of V-type driving pulley is narrowed down, and the variable velocity zone 3 that contacts with the V-type driving pulley deviates from the axle center and outwards moves, and the actual Pitch radius of V-type driving pulley becomes big.After the down-pressed pole 93 of interlock frame 9 moved down, under the effect of variable velocity zone tension force, the variable velocity zone that contact with the V-type driven pulley 3 moved to the axle center, and the actual Pitch radius of V-type driven pulley diminishes, thereby makes output speed become big, the realization stepless change.
Shown in Fig. 1 to 3, interlock frame 9 shapes are similar Z-shaped, are made up of upperpush rod 91, straight-bar 92, down-pressed pole 93 etc.; Upperpush rod 91 1 ends are enclosed within on the driving shaft 8, push down initiatively the movably outer end of cone pulley 4 through up-thrust bearing 5, the axial freedom of the initiatively movable cone pulley 4 of restriction; Up-thrust bearing 5 is enclosed within on the driving shaft 8; Up-thrust bearing 5 lower ends link with initiatively movable cone pulley 4, and up-thrust bearing 5 upper ends link with the upperpush rod 91 of interlock frame 9, during work; The bearing bracket stand that links with initiatively movable cone pulley 4 rotates with the V-type driving pulley, and the bearing bracket stand that is installed in the upperpush rod 91 does not rotate.Upperpush rod 91 the other ends are fixed on the straight-bar upper end; Down-pressed pole 93 1 ends are enclosed within on the driven shaft, push down the outer end of driven movable cone pulley 11 through lower thrust-bearing 12, limit the axial freedom of driven movable cone pulley 11; Lower thrust-bearing 12 is enclosed within on the driven shaft; Lower thrust-bearing 12 upper ends and driven movable cone pulley 11 link, and lower thrust-bearing 12 lower ends link with the down-pressed pole 93 of interlock frame 9, during work; The bearing bracket stand that links with driven movable cone pulley 11 rotates with the V-type driven pulley, and the bearing bracket stand that is installed in the down-pressed pole 93 does not rotate.Down-pressed pole 93 the other ends are fixed on straight-bar 92 lower ends.Straight-bar 92 is in the intermediate portion of interlock frame 9, and straight-bar 92 two ends are processed with screw thread and screw mandrel 15 connects cooperation, and it is secondary to constitute screw mandrel/nut connection, and the screw thread in the straight-bar 92 also can be replaced by the screw thread inserter.Screw mandrel 15 passes through Bearing Installation on body 1, and axial restraint is circumferentially rotatable.When screw mandrel 15 forward and reverse rotations, can drive interlock frame 9 moves up and down.Screw mandrel 15 plays and promotes the 9 axially movable effects of interlock frame, also can be replaced by driving mechanisms such as hydraulic pressure thick sticks.
Like Fig. 1 and shown in Figure 4, be installed in the interlock frame 9 upperpush rod 91 in up-thrust bearing 5 pressing pressure spring 6, pressure spring 6 is compressed by spring seat 17, spring seat 17 is compressed by hold-down bolt 7, hold-down bolt 7 is screwed in the upperpush rod 91.Can Regulation spring seat 17 and the axial position of initiatively movable cone pulley 4 through regulating hold-down bolt 7, and then regulate the tension force of variable velocity zone 3, and make belt wheel press variable velocity zone all the time in working procedure.This variable velocity zone tension force controlling mechanism also can design in down-pressed pole.
As shown in Figure 1, body 1 is fixed on the axis motionless, and after body 1 was taken away shell, main skeleton remained unchanged, and is convenient to change variable velocity zone 3.When variable velocity zone 3 is installed, interlock frame 9 is moved up, make the V-type groove of V-type driving pulley be in the wideest state, be contained in variable velocity zone 3 in the V-type driving pulley then, put into the V-type driven pulley to variable velocity zone 3 again.
Claims (6)
1. variable v-belt drive, comprise driving shaft, initiatively decide cone pulley, initiatively movable cone pulley, variable velocity zone, driven shaft, drivenly decide cone pulley, driven movable cone pulley, link frame and body, it is characterized in that:
Driving shaft, is initiatively decided cone pulley and is fixed on the driving shaft on body through Bearing Installation, and initiatively movable cone pulley is installed on the driving shaft; Can move axially, initiatively movable cone pulley links through the upperpush rod of up-thrust bearing with the interlock frame, initiatively decides cone pulley and constitutes the V-type driving pulley in the band transmission with initiatively movable cone pulley; Driven shaft passes through Bearing Installation on body; Drivenly decide cone pulley and be fixed on the driven shaft, driven movable cone pulley is installed on the driven shaft, can move axially; Driven movable cone pulley links through the down-pressed pole of lower thrust-bearing with the interlock frame, the driven V-type driven pulley of deciding in cone pulley and the transmission of driven movable cone pulley formation band.
2. a kind of variable v-belt drive as claimed in claim 1 is characterized in that:
Described its shape of interlock frame is similar Z-shaped, is made up of upperpush rod, straight-bar, down-pressed pole etc., and upperpush rod one end is enclosed within on the driving shaft; Push down initiatively the movably outer end of cone pulley through up-thrust bearing, up-thrust bearing is enclosed within on the driving shaft, and the up-thrust bearing lower end links with initiatively movable cone pulley; The up-thrust bearing upper end links with the upperpush rod of interlock frame; The upperpush rod the other end is fixed on the straight-bar upper end, and down-pressed pole one end is enclosed within on the driven shaft, pushes down the outer end of driven movable cone pulley through lower thrust-bearing; Lower thrust-bearing is enclosed within on the driven shaft; Lower thrust-bearing upper end and driven movable cone pulley link, and the lower thrust-bearing lower end links with the down-pressed pole of interlock frame, and the down-pressed pole the other end is fixed on the straight-bar lower end.
3. according to claim 1 or claim 2 a kind of variable v-belt drive is characterized in that:
In the depression bar of described interlock frame thrust-bearing is installed, the thrust axis pressure-bearing in the upperpush rod of interlock frame pressure spring, and pressure spring is compressed by spring seat, and spring seat is compressed by hold-down bolt, and hold-down bolt is screwed in the upperpush rod.
4. according to claim 1 or claim 2 a kind of variable v-belt drive is characterized in that:
The straight-bar of described interlock frame is processed with screw thread and screw mandrel connects cooperation, constitutes screw mandrel/nut and connects secondary.
5. a kind of variable v-belt drive as claimed in claim 4 is characterized in that:
Described screw mandrel passes through Bearing Installation on body.
6. like claim 1 or 5 described a kind of variable v-belt drives, it is characterized in that:
Described body is fixed on transfixion on the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200271866U CN202484229U (en) | 2012-01-18 | 2012-01-18 | Draper-type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200271866U CN202484229U (en) | 2012-01-18 | 2012-01-18 | Draper-type continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484229U true CN202484229U (en) | 2012-10-10 |
Family
ID=46958655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200271866U Expired - Fee Related CN202484229U (en) | 2012-01-18 | 2012-01-18 | Draper-type continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216592A (en) * | 2012-01-18 | 2013-07-24 | 陈雪妍 | Belt type continuously variable transmission |
-
2012
- 2012-01-18 CN CN2012200271866U patent/CN202484229U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216592A (en) * | 2012-01-18 | 2013-07-24 | 陈雪妍 | Belt type continuously variable transmission |
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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: 20121010 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |