CN210510170U - Cone pulley type stepless speed change mechanism - Google Patents
Cone pulley type stepless speed change mechanism Download PDFInfo
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- CN210510170U CN210510170U CN201920716212.8U CN201920716212U CN210510170U CN 210510170 U CN210510170 U CN 210510170U CN 201920716212 U CN201920716212 U CN 201920716212U CN 210510170 U CN210510170 U CN 210510170U
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- umbrella
- shaft
- expansion
- cone pulley
- pull rod
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Abstract
The utility model relates to a cone pulley type stepless speed change mechanism, which comprises a case, a power input shaft and a power output shaft, wherein the power input shaft and the power output shaft are arranged in the case in parallel, the power input shaft and the power output shaft are respectively fixed with an input cone pulley and an output cone pulley which have opposite directions, an umbrella-shaped expansion mechanism is arranged between the input cone pulley and the output cone pulley, the umbrella-shaped expansion mechanism comprises an umbrella-shaped mechanism, an expansion driving mechanism and a positioning driving mechanism, the umbrella-shaped mechanism comprises an umbrella shaft and a plurality of expansion pieces, the umbrella shaft is movably arranged on one side wall of the case, the plurality of expansion pieces are rotatably connected on the peripheral side of one end of the umbrella shaft to form an umbrella shape, the plurality of expansion pieces are driven by the expansion driving mechanism to simultaneously and outwards expand conical surfaces for pressing the input cone pulley and the output cone pulley so as to communicate power transmission, the other end of the umbrella shaft is rotatably, the position-adjusting driving mechanism drives the umbrella shaft to drive the expansion pieces to move along the axial direction of the umbrella shaft so as to adjust the pressing position to realize stepless speed change.
Description
Technical Field
The utility model relates to a derailleur technical field especially relates to a cone pulley formula infinitely variable speed mechanism.
Background
The continuously variable transmission is a kind of transmission, and utilizes a transmission belt and a main driven wheel with variable working diameter to cooperate to transmit power, so as to implement continuous change of transmission ratio. The existing stepless speed changer comprises a metal belt type stepless speed changer, a chain type stepless speed changer or a KRG cone ring type stepless speed changer and the like; the passive belt wheel of the metal belt type continuously variable transmission or the chain type continuously variable transmission needs a hydraulic system for accurate control, the structure is complex, the production cost is high, a transmission belt is easy to damage or deform, the performance is unstable, and the requirement on the material is high; and KRG cone ring formula buncher, it is by cone pulley and driving ring cooperation transmission power, not only the structure is complicated, and also high to its physical properties requirement moreover.
Disclosure of Invention
An object of the utility model is to provide a reasonable in design, simple structure, not fragile or deformation, but the strong cone pulley formula infinitely variable speed mechanism of performance.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cone pulley type stepless speed change mechanism comprises a case, a power input shaft and a power output shaft, wherein the power input shaft and the power output shaft are parallelly installed in the case, an input cone pulley and an output cone pulley which are opposite in direction are respectively fixed on the power input shaft and the power output shaft, an umbrella-shaped expansion mechanism is arranged between the input cone pulley and the output cone pulley and comprises an umbrella-shaped mechanism, an expansion driving mechanism and a position adjusting driving mechanism, the umbrella-shaped mechanism comprises an umbrella shaft and a plurality of expansion pieces, the umbrella shaft is movably arranged on one side wall of the case in a penetrating way, the expansion pieces are rotatably connected on the peripheral side of one end of the umbrella shaft to form an umbrella shape, the expansion pieces are driven by the expansion driving mechanism to simultaneously and outwards expand and are used for compressing conical surfaces of the input cone pulley and the output cone pulley to communicate power transmission, the other end of the umbrella shaft is rotatably connected with the position adjusting driving mechanism arranged outside the case, the position-adjusting driving mechanism drives the umbrella shaft to drive the expansion pieces to move along the axial direction of the umbrella shaft, and is used for adjusting the pressing position to realize stepless speed change.
Preferably, one end of the umbrella shaft is of a hollow structure, a plurality of U-shaped grooves are formed in the side wall of one end of the umbrella shaft along the peripheral side, the plurality of expansion pieces are composed of arc-shaped rods and supporting rods fixedly connected with the middle parts of the arc-shaped rods into a T shape, and the supporting rods of the plurality of expansion pieces are respectively rotatably connected to the groove openings of the plurality of U-shaped grooves through a plurality of rotating shafts.
Preferably, the expansion driving mechanism comprises a pull rod, the pull rod and the umbrella shaft are movably arranged on the other side wall of the case in a penetrating manner, one end of the pull rod is movably inserted into one end of the umbrella shaft, one end of the pull rod is respectively fixed with a plurality of ejector rods which extend out of the U-shaped grooves and are used for pushing the corresponding support rods, the other end of the pull rod is rotatably connected with a push-pull mechanism arranged outside the case, and the push-pull mechanism drives the pull rod to drive the ejector rods to move towards the other end of the pull rod so as to drive the expansion pieces to simultaneously expand outwards.
Preferably, the push-pull mechanism comprises a first connecting block, a first screw rod and a first driving motor, wherein a first T-shaped cavity is formed in one end of the first connecting block, the other end of the pull rod is inserted into the first T-shaped cavity in a 360-degree rotatable manner, a first axial limiting ring for preventing the pull rod from being separated from the first T-shaped cavity is arranged at the other end of the pull rod, the other end of the first connecting block is fixedly connected with one end of the first screw rod, a first driven gear is connected to the first screw rod in a threaded manner, the first driving motor is fixedly mounted on the other side of the chassis, a first driving gear is fixedly sleeved on an output shaft of the first driving motor, and the first driving gear is meshed with the first driven gear and is used for driving the first screw rod to drive the pull rod.
Preferably, the positioning driving mechanism comprises a second connecting block, a second screw and a second driving motor, a second T-shaped cavity is formed in one end of the second connecting block, the other end of the umbrella shaft can rotate 360 degrees and is inserted into the second T-shaped cavity, a second axial limiting ring used for preventing the umbrella shaft from being separated from the second T-shaped cavity is arranged at the other end of the umbrella shaft, the other end of the second connecting block is fixedly connected with one end of the second screw, a second driven gear is connected to the second screw in a threaded manner, the second driving motor is fixedly mounted on one side of the case, a second driving gear is fixedly sleeved on an output shaft of the second driving motor, and the second driving gear is meshed with the second driven gear and used for driving the second screw to drive the umbrella shaft to move axially.
Preferably, the distance between the central line of the umbrella shaft and the conical surface of the input conical wheel is the same as the distance between the central line of the umbrella shaft and the conical surface of the output conical wheel.
Preferably, the first screw and the second screw have the same thread direction, and the first driven gear and the second driven gear have the same thread direction; the first driving motor and the second driving motor are both positive and negative rotating motors.
Preferably, the power input shaft, the power output shaft, the umbrella shaft and the pull rod are respectively matched with the case shaft sleeve to realize rotation around the central line of the shaft.
The utility model adopts the above technical scheme, because first driving motor and second driving motor are fixed mounting, and/or first driven gear and second driven gear are under axial stop gear's effect, make first driven gear and second driven gear can only carry out circumferential direction and can not carry out axial displacement, make it rotate through the first syntropy of first driving motor of control and second driving motor, it moves right or left along the axial to drive umbrella axle and pull rod synchronization, adjust the required position that compresses tightly of a plurality of expansions, later maintain a plurality of expansions axial position unchangeable, and control first driving motor and drive the pull rod and move right, it pushes away a plurality of expansions to drive a plurality of ejector pins respectively, outwards expand the conical surface that compresses tightly input cone and output cone simultaneously with driving a plurality of expansions, realize power transmission's intercommunication. Specifically, for example, the first driving motor and the second driving motor are controlled to rotate forwards to drive each driving gear and each driven gear to rotate forwards and drive each screw rod to move rightwards along the axial direction through each connecting block, so that the umbrella shaft, the plurality of expansion pieces, the pull rod and the plurality of ejector rods are driven to move rightwards along the axial direction of the umbrella shaft, the pressing positions of the expansion pieces, which are used for pressing the conical surfaces of the input conical wheel and the output conical wheel, are adjusted to the right end position, the radius of the input conical wheel is reduced, the radius of the output conical wheel is increased, the transmission ratio is increased, and the speed ratio is increased; conversely, the speed ratio can be reduced by adjusting the plurality of expansion pieces to the left end position; after adjusting the pre-compaction position, the axial position of a plurality of expansion pieces is controlled to be unchanged, the first driving motor is controlled to rotate positively to drive the first driving gear and the first driven gear to rotate positively to drive the first screw rod to drive the pull rod and the ejector rods to move rightwards along the axial direction through the first connecting block to be close to and push the plurality of expansion pieces so as to drive the plurality of expansion pieces to simultaneously expand outwards until the conical surfaces of the input conical wheel and the output conical wheel are compressed, and therefore power transmission communication is achieved. The utility model relates to a rationally, simple structure, low in production cost, not fragile or deformation, long service life, the working property is stable, and can execute nature is strong, is suitable for popularization and application.
Drawings
The present invention will now be further elucidated with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a cone pulley type stepless speed change mechanism according to the present invention;
FIG. 2 is a schematic view of the present invention showing a plurality of expansion elements expanded outwardly;
FIG. 3 is a second view illustrating the state of the plurality of expanding members of the present invention expanding outward at the same time;
FIG. 4 is a schematic view of the structure of the expanding element of the present invention;
FIG. 5 is a schematic structural view of one end of the umbrella shaft of the present invention;
fig. 6 is a schematic structural view of one end of the pull rod of the present invention.
Detailed Description
As shown in one of fig. 1 to 6, the cone pulley type stepless speed change mechanism of the present invention comprises a case 1, a power input shaft 2 and a power output shaft 5, wherein the power input shaft 2 and the power output shaft 5 are installed in the case 1 in parallel, an input cone pulley 3 and an output cone pulley 4 are fixed on the power input shaft 2 and the power output shaft 5 respectively, the directions of the input cone pulley 3 and the output cone pulley 4 are opposite, an umbrella-shaped expansion mechanism is arranged between the input cone pulley 3 and the output cone pulley 4, the umbrella-shaped expansion mechanism comprises an umbrella-shaped mechanism 6, an expansion driving mechanism 7 and a positioning driving mechanism 8, the umbrella-shaped mechanism 6 comprises an umbrella shaft 61 and a plurality of expansion pieces 62, the umbrella shaft 61 is movably inserted into a side wall of the case 1, the plurality of expansion pieces 62 are rotatably connected to the periphery of one end of the umbrella shaft 61 to form an umbrella shape, the plurality of expansion pieces 62 are driven by the expansion driving mechanism, the umbrella shaft 61 is rotatably connected with a position adjusting driving mechanism 8 arranged outside the case 1, the position adjusting driving mechanism 8 drives the umbrella shaft 61 to drive the plurality of expansion pieces 62 to move along the axial direction of the umbrella shaft 61, and the umbrella shaft is used for adjusting the pressing position to realize stepless speed change.
Preferably, one end of the umbrella shaft 61 is a hollow structure, a plurality of U-shaped grooves 611 are formed in the side wall of one end of the umbrella shaft 61 along the circumferential side, each of the plurality of expansion members 62 is formed by an arc-shaped rod 621 and a support rod 622 fixedly connected with the middle of the arc-shaped rod 621 in a T-shape, a shaft hole 623 is formed in the support rod 622, and the support rods 622 of the plurality of expansion members 62 are respectively and rotatably connected to the notches of the plurality of U-shaped grooves 611 through a plurality of rotating shafts 63.
Preferably, the expansion driving mechanism 7 includes a pull rod 71, the pull rod 71 and the umbrella shaft 61 are coaxially and movably disposed through the other side wall of the chassis 1, one end of the pull rod 71 is movably inserted into one end of the umbrella shaft 61, one end of the pull rod 71 is fixed with a plurality of push rods 72 extending out of the U-shaped grooves 611 corresponding to the plurality of U-shaped grooves 611, respectively, for pushing the corresponding support rods 622, the other end of the pull rod 71 is rotatably connected with a push-pull mechanism 9 disposed outside the chassis 1, and the push-pull mechanism 9 drives the pull rod 71 to drive the plurality of push rods 72 to move towards the other end of the pull rod 71, so as to drive the plurality of expansion members.
Preferably, the push-pull mechanism 9 includes a first connection block 91, a first screw 92 and a first driving motor 95, wherein a first T-shaped cavity is formed at one end of the first connection block 91, the other end of the pull rod 71 is inserted into the first T-shaped cavity in a rotatable manner by 360 degrees, a first axial limiting ring for preventing the pull rod 71 from being disengaged from the first T-shaped cavity is arranged at the other end of the pull rod 71, the other end of the first connection block 91 is fixedly connected with one end of the first screw 92, a first driven gear 93 is connected to the first screw 92 in a threaded manner, the first driving motor 95 is fixedly mounted at the other side of the chassis 1, a first driving gear 94 is fixedly sleeved on an output shaft of the first driving motor 95, and the first driving gear 94 is engaged with the first driven gear 93 and is used for driving the first screw 92 to drive the pull rod 71 to move axially.
Preferably, the positioning driving mechanism 8 includes a second connecting block 81, a second screw 82 and a second driving motor 85, one end of the second connecting block 81 is provided with a second T-shaped cavity, the other end of the umbrella shaft 61 is inserted into the second T-shaped cavity in a rotatable manner by 360 degrees, the other end of the umbrella shaft 61 is provided with a second axial limiting ring for preventing the umbrella shaft 61 from disengaging from the second T-shaped cavity, the other end of the second connecting block 81 is fixedly connected with one end of the second screw 82, the second screw 82 is connected with a second driven gear 83 through a thread, the second driving motor 85 is fixedly installed on one side of the chassis 1, an output shaft of the second driving motor 85 is fixedly sleeved with a second driving gear 84, and the second driving gear 84 is engaged with the second driven gear 83 and is used for driving the second screw 82 to drive the umbrella shaft 61 to move axially.
Preferably, the distance between the central line of the umbrella shaft 61 and the conical surface of the input conical wheel 3 is the same as the distance between the central line of the umbrella shaft 61 and the conical surface of the output conical wheel 4.
Preferably, the thread directions of the first screw 92 and the second screw 82 are the same, and the thread directions of the first driven gear 93 and the second driven gear 83 are the same; the first driving motor 95 and the second driving motor 85 are both positive and negative rotating motors.
Preferably, the power input shaft 2, the power output shaft 5, the umbrella shaft 61 and the pull rod 71 are respectively matched with the case 1 in a shaft sleeve manner, so that the rotation around the central line of the shaft can be realized.
The utility model adopts the above technical scheme, because the first driving motor 95 and the second driving motor 85 are fixedly installed, and/or the first driven gear 93 and the second driven gear 83 are under the effect of the axial limiting mechanism, so that the first driven gear 93 and the second driven gear 83 can only rotate circumferentially but can not move axially, so that the umbrella shaft 61 and the pull rod 71 can be driven to move axially rightwards or leftwards synchronously by controlling the first driving motor 95 and the second driving motor 85 to adjust the required pressing positions of the plurality of expansion pieces 62, then the axial positions of the plurality of expansion pieces 62 are maintained unchanged, and the first driving motor 95 is controlled to drive the pull rod to move rightwards 71, the plurality of push rods 72 are driven to be respectively close to and push the plurality of expansion pieces 62, so as to drive the plurality of expansion pieces 62 to simultaneously expand outwards to press the conical surfaces of the input conical wheel 3 and the output conical wheel 4, and the communication of power transmission is realized. Specifically, for example, the first driving motor 95 and the second driving motor 85 are controlled to rotate forward to drive each driving gear and each driven gear to rotate forward to drive each screw rod to move rightward along the axial direction through each connecting block, so as to drive the umbrella shaft 61, the plurality of expansion pieces 62, the pull rod 71 and the plurality of ejector rods 72 to move rightward along the axial direction of the umbrella shaft 61, so as to adjust the pressing positions of the plurality of expansion pieces 62, which pre-press the conical surfaces of the input conical wheel 3 and the output conical wheel 4, to the right end position, at this time, the radius of the input conical wheel 3 is reduced, the radius of the output conical wheel 4 is increased, the transmission ratio is increased, and the speed ratio is increased; conversely, adjusting the plurality of expansion members 62 to the left end position may achieve a reduction in speed ratio; after the pre-compression position is adjusted, the axial positions of the expansion pieces 62 are controlled to be unchanged, the first driving motor 95 is controlled to rotate positively to drive the first driving gear 94 and the first driven gear 93 to rotate positively to drive the first screw 92 to drive the pull rod 71 and the ejector rods 72 to move rightwards along the axial direction through the first connecting block 91 to approach and push the expansion pieces 62, so that the expansion pieces 62 are driven to expand outwards simultaneously until the conical surfaces of the input conical wheel 3 and the output conical wheel 4 are compressed, and the communication of power transmission is realized.
The above description should not be taken as limiting the scope of the invention in any way.
Claims (6)
1. The utility model provides a cone pulley formula infinitely variable speed mechanism, includes quick-witted case, power input shaft and power output shaft parallel mount are in quick-witted incasement, are fixed with opposite direction's input cone pulley and output cone pulley respectively on power input shaft and the power output shaft, its characterized in that: be equipped with umbelliform expanding mechanism between input cone pulley and the output cone pulley, umbelliform expanding mechanism includes umbelliform mechanism, expansion actuating mechanism and positioning actuating mechanism, umbelliform mechanism includes umbrella axle and a plurality of expansion piece, a quick-witted case lateral wall is worn to locate in the activity of umbrella axle, a plurality of expansion piece rotate to be connected in umbrella axle one end week side, form umbelliform, a plurality of expansion pieces are outwards expanded simultaneously by the expansion actuating mechanism drive for compress tightly the conical surface of input cone pulley and output cone pulley and with intercommunication power transmission, the umbrella axle other end rotates to be connected and locates the positioning actuating mechanism outside quick-witted case, and positioning actuating mechanism drive umbrella axle drives a plurality of expansion pieces along the axial displacement of umbrella axle, is used for adjusting and compresses tightly the position in order to realize infinitely variable.
2. The bevel pulley type continuously variable transmission mechanism according to claim 1, wherein: umbrella axle one end is hollow structure, and a plurality of U-shaped grooves have been seted up along week to umbrella axle one end lateral wall, a plurality of expansion pieces constitute by arc pole and the bracing piece that forms T shape with arc pole middle part fixed connection, the bracing piece of a plurality of expansion pieces rotates respectively through a plurality of pivots and connects in the notch department in a plurality of U-shaped grooves.
3. The bevel pulley type continuously variable transmission mechanism according to claim 2, wherein: the expansion driving mechanism comprises a pull rod, the pull rod and the umbrella shaft are movably arranged on the other side wall of the case in a penetrating mode, one end of the pull rod is movably inserted into one end of the umbrella shaft, one end of the pull rod is fixedly provided with a plurality of ejector rods which extend out of the U-shaped grooves and are used for pushing the corresponding supporting rods, the other end of the pull rod is rotatably connected with a push-pull mechanism arranged outside the case, and the push-pull mechanism drives the pull rod to drive the ejector rods to move towards the other end of the pull rod and is used for driving the expansion pieces to simultaneously expand outwards.
4. The bevel pulley type continuously variable transmission mechanism according to claim 3, wherein: the push-pull mechanism comprises a first connecting block, a first screw and a first driving motor, wherein a first T-shaped cavity is formed in one end of the first connecting block, the other end of the pull rod is inserted into the first T-shaped cavity in a 360-degree rotatable mode, a first axial limiting ring used for preventing the pull rod from being separated from the first T-shaped cavity is arranged at the other end of the pull rod, the other end of the first connecting block is fixedly connected with one end of the first screw, a first driven gear is connected to the first screw in a threaded mode, the first driving motor is fixedly installed on the other side of the chassis, a first driving gear is fixedly sleeved on an output shaft of the first driving motor, and the first driving gear is meshed with the first driven gear.
5. The bevel pulley type continuously variable transmission mechanism according to claim 1, wherein: the position adjusting driving mechanism comprises a second connecting block, a second screw and a second driving motor, a second T-shaped cavity is formed in one end of the second connecting block, the other end of the umbrella shaft can rotate 360 degrees and is inserted into the second T-shaped cavity, a second axial limiting ring used for preventing the umbrella shaft from being separated from the second T-shaped cavity is arranged at the other end of the umbrella shaft, the other end of the second connecting block is fixedly connected with one end of the second screw, a second driven gear is connected to the second screw in a threaded mode, the second driving motor is fixedly installed on one side of the case, a second driving gear is fixedly sleeved on an output shaft of the second driving motor, and the second driving gear is meshed with the second driven gear.
6. The bevel pulley type continuously variable transmission mechanism according to claim 1, wherein: the distance between the central line of the umbrella shaft and the conical surface of the input conical wheel is the same as the distance between the central line of the umbrella shaft and the conical surface of the output conical wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716212.8U CN210510170U (en) | 2019-05-17 | 2019-05-17 | Cone pulley type stepless speed change mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920716212.8U CN210510170U (en) | 2019-05-17 | 2019-05-17 | Cone pulley type stepless speed change mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210510170U true CN210510170U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920716212.8U Expired - Fee Related CN210510170U (en) | 2019-05-17 | 2019-05-17 | Cone pulley type stepless speed change mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210510170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145570A (en) * | 2019-05-17 | 2019-08-20 | 福建工程学院 | A kind of cone pulley type stepless speed changing mechanism |
| CN112254490A (en) * | 2020-11-03 | 2021-01-22 | 付秋芬 | Drying device for food processing |
-
2019
- 2019-05-17 CN CN201920716212.8U patent/CN210510170U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145570A (en) * | 2019-05-17 | 2019-08-20 | 福建工程学院 | A kind of cone pulley type stepless speed changing mechanism |
| CN110145570B (en) * | 2019-05-17 | 2024-04-16 | 福建工程学院 | Cone pulley type stepless speed change mechanism |
| CN112254490A (en) * | 2020-11-03 | 2021-01-22 | 付秋芬 | Drying device for food processing |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 Termination date: 20210517 |