CN112815056A - Speed changing device and gearbox - Google Patents
Speed changing device and gearbox Download PDFInfo
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- CN112815056A CN112815056A CN202110186979.6A CN202110186979A CN112815056A CN 112815056 A CN112815056 A CN 112815056A CN 202110186979 A CN202110186979 A CN 202110186979A CN 112815056 A CN112815056 A CN 112815056A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
- F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H61/664—Friction gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
The invention provides a stepless speed change device and a gearbox, wherein the speed change device comprises a driving conical disk, at least one first transmission conical wheel in contact transmission with the driving conical disk, a driven conical disk, at least one second transmission conical wheel in contact transmission with the driven conical disk and a transmission mechanism, wherein the first transmission conical wheel can shift between the maximum circumference and the minimum circumference of the driving conical disk, the second transmission conical wheel can shift between the maximum circumference and the minimum circumference of the driven conical disk, and the first transmission conical wheel is connected with the second transmission conical wheel through the transmission mechanism. The invention has the advantages of large transmission torque, high reliability and low cost.
Description
Technical Field
The invention belongs to the technical field of speed change, and particularly relates to a stepless speed change device and a gearbox.
Background
A transmission for a fuel-powered vehicle generally includes an MT (manual transmission), an AMT (automatic mechanical transmission), an AT (automatic transmission), a CVT (continuously variable transmission) and a DCT (dual clutch transmission), in which the CVT (continuously variable transmission) is used in more and more vehicles with excellent gear shifting smoothness and fuel economy.
The existing CVT continuously variable transmission mainly has four types of a belt (chain) CVT, a wheel CVT, a toroidal CVT, and a ball CVT.
The belt type (chain type) CVT has the defects that the contact area of a steel belt (or a steel chain) and a transmission conical surface is small, the steel belt (or the steel chain) is easy to slip, the steel belt (or the steel chain) is easy to wear, the steel belt (or the steel chain) can be broken in an extreme state, the transmitted torque is limited, the cost of the steel belt (the steel chain) is high, and the like.
The wheel type CVT has the defects of complex shapes of a driving wheel, a driven wheel and a speed change roller, high machining precision requirement, complex angle control of the speed change roller, high cost and the like.
The circular CVT has the defects of small friction contact area of a speed change circular ring, limited transmission torque, incapability of being applied to large automobiles and the like.
The ball CVT is in line contact, the force transmission contact area of the ball CVT is smaller than that of the ball CVT in the scheme, the machining precision requirement of a transmission part is higher, and the application scene of the ball CVT is greatly limited.
The CTV stepless speed change device in the prior art has the defect that the contradiction among the transmission torque, the reliability and the cost cannot be balanced, and on the basis, the invention provides a brand-new stepless speed change device and a gearbox so as to solve the problem in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a speed changing device and a gearbox, which have the advantages of large transmission torque, high reliability and low cost.
In order to achieve the above object, in one aspect, the present invention provides a transmission device including:
an active cone disk;
at least one first transmission cone pulley in contact transmission with the driving cone disc;
the first transmission cone pulley can shift between the maximum circumference and the minimum circumference of the driving cone disc;
a driven conical disc;
at least one second transmission cone pulley in contact transmission with the driven cone pulley;
the second transmission cone pulley can shift between the maximum circumference and the minimum circumference of the driven cone disc;
and
and the first transmission cone pulley is connected with the second transmission cone pulley through the transmission mechanism.
In the above technical solution of the present invention, the driving bevel disk is in friction contact with the first driving bevel wheel, the driving bevel disk has a series of large circumferential contact friction surfaces, the first driving bevel wheel has a small circumferential contact friction surface, the driving bevel disk rotates at a certain speed, when the first driving bevel wheel is located at the small circumference of the driving bevel disk, the first driving bevel wheel obtains a small rotation speed, and when the first driving bevel wheel is located at the large circumference of the driving bevel disk, the first driving bevel wheel obtains a large rotation speed.
Similarly, the driven conical disk is in friction contact with the second transmission conical wheel, the driven conical disk is provided with a series of large circumference contact friction surfaces, the second transmission conical wheel is provided with a small circumference contact friction surface, the rotating speed of the first transmission conical wheel is transmitted to the second transmission conical wheel through the transmission mechanism, and if the rotating speed of the first transmission conical wheel is not changed, when the second transmission conical wheel is positioned at the small circumference of the driven conical disk, the speed transmitted from the second transmission conical wheel to the driven conical disk is large, and when the second transmission conical wheel is positioned at the large circumference of the driven conical disk, the speed transmitted from the second transmission conical wheel to the driven conical disk is small.
Specifically, the displacement of the first transmission cone pulley relative to the driving cone disk and the displacement of the second transmission cone pulley relative to the driven cone disk can be performed simultaneously, that is, when the driving cone disk rotates at a certain speed, the first transmission cone pulley is positioned at the minimum circumference of the driving cone disk, and the second transmission cone pulley is positioned at the maximum circumference of the driven cone disk, the rotation speed of the driven cone disk is minimum; when the first transmission cone pulley is positioned on the maximum circumference of the driving cone disc and the second transmission cone pulley is positioned on the minimum circumference of the driven cone disc, the rotating speed of the driven cone disc is maximum.
The stepless speed change process of the whole device is carried out by adjusting the contact position of the first transmission cone pulley and the driving cone disc and the contact position of the second transmission cone pulley and the driven cone disc.
According to another embodiment of the invention, the axis of the first transmission cone pulley is perpendicular to the axis of the driving cone disc, and the axis of the second transmission cone pulley is perpendicular to the axis of the driven cone disc.
The axis of the driving conical disk and the axis of the driven conical disk are parallel or collinear.
According to another embodiment of the invention, the driving conical disc and the first transmission conical wheel can both perform axial displacement, and the driven conical disc and the second transmission conical wheel can both perform axial displacement.
According to another embodiment of the invention, the transmission comprises at least a gear/sprocket/pulley transmission set.
The gear/sprocket/pulley transmission set in this solution enables the transmission of power.
According to another embodiment of the present invention, the transmission mechanism further comprises a first driving bevel gear, a second driving bevel gear, a first driven bevel gear, a second driven bevel gear, a first screw rod and a second screw rod;
the first driving bevel gear and the second driving bevel gear synchronously rotate;
the first driven bevel gear is meshed with the first driving bevel gear, the first screw rod is connected with the first driven bevel gear and rotates along with the first driven bevel gear, and the first driven bevel gear is driven by the first screw rod to be capable of moving along the axial direction of the first screw rod;
the second driven bevel gear is meshed with the second driving bevel gear, the second screw rod is connected with the second driven bevel gear and rotates along with the second driven bevel gear, and the second driven bevel gear is driven by the second screw rod to be capable of moving along the axial direction of the second screw rod.
In the scheme, the first driving bevel gear and the second driving bevel gear synchronously rotate to synchronously drive the first driven bevel gear and the second driven bevel gear to rotate, wherein the first screw rod and the second screw rod can rotate in the same direction or in the opposite direction according to the mirror image distribution or the array distribution of the first driving bevel gear and the second driving bevel gear.
In the scheme of linkage between the first screw rod and the second screw rod, the first screw rod and the second screw rod are preferably in reverse rotation so as to finally drive the first transmission cone pulley and the second transmission cone pulley to realize a quick adjustment process of ascending and descending, and the designed maximum transmission efficiency can be covered.
According to another specific embodiment of the present invention, the transmission mechanism further comprises a first frame, a second frame, a first spline shaft, a second spline shaft, a first transmission gear set and a second transmission gear set;
the first spline shaft is parallel to the first screw rod, the first rack is arranged on the first screw rod, one transmission gear in the first transmission gear set is slidably sleeved on the first spline shaft and is rotatably arranged on the first rack, and the other transmission gear in the first transmission gear set and the first transmission bevel wheel synchronously rotate;
the second spline shaft is parallel to the second screw rod, the second rack is arranged on the second screw rod, one transmission gear in the second transmission gear set is slidably sleeved on the second spline shaft and rotatably arranged on the second rack, and the other transmission gear in the second transmission gear set and the second transmission bevel wheel synchronously rotate;
two transmission wheels in the gear/chain wheel/belt wheel transmission set are respectively arranged on the first spline shaft and the second spline shaft.
According to another embodiment of the present invention, two or more first transmission cones and two or more second transmission cones are provided, the two or more first transmission cones are arrayed or distributed oppositely with the axis of the driving cone as a center, and the two or more second transmission cones are arrayed or distributed oppositely with the axis of the driven cone as a center.
The relative distribution here is, for example, distributed in groups or distributed in other regular patterns.
According to another specific embodiment of the invention, more than two first driven bevel gears with the same number as the first transmission bevel gears are arranged, and the more than two first driven bevel gears are meshed with the first driving bevel gear; more than two second driven bevel gears with the same number as the second transmission bevel gears are arranged, and the more than two second driven bevel gears are meshed with the second driving bevel gears.
According to the scheme, the first driven bevel gears and the second driven bevel gears which are different can be driven to rotate through the first driving bevel gear and the second driving bevel gear, and finally the contact positions of the first transmission bevel gears and the second transmission bevel gears which are different and driven by the rotation of the plurality of screw rods can be adjusted.
According to another embodiment of the invention, the first lead screw is replaced by a first speed regulating slide block with end face threads, and the second lead screw is replaced by a second speed regulating slide block with end face threads; in the scheme, the transmission mode of the first speed regulation sliding block and the first rack and the transmission mode of the second speed regulation sliding block and the second rack are end surface thread pairs.
In another aspect, the present invention provides a transmission including at least one set of forward speed transmission devices, the transmission being a continuously variable transmission.
In the structure with two or more than two groups of speed changing devices, two adjacent conical disks are respectively a driving conical disk and a driven conical disk, for example, three conical disks are arranged in the speed changer and respectively comprise a first conical disk, a second conical disk and a third conical disk, so that the first conical disk and the matching structure thereof, the second conical disk and the matching structure thereof form a first group of speed changing devices, and the second conical disk and the matching structure thereof, the third conical disk and the matching structure thereof form a second group of speed changing devices.
The invention has the following beneficial effects:
the invention does not use flexible transmission elements such as steel belts, steel chains or belts and the like, can bear large torque load, and has no risk of breakage of the flexible transmission elements;
compared with other technical schemes in the prior art, the friction contact area between each friction transmission pair (the friction contact between the driving conical disc and the first transmission conical wheel and the friction contact between the driven conical disc and the second transmission conical wheel) is large, the transmission is reliable, and the slippage and the abrasion are not easy to occur;
the invention adopts the screw rod pair or the end surface thread pair as the speed regulation operation structure, can realize pure mechanical speed regulation control, does not need precise parts such as a hydraulic electromagnetic valve slide valve box and the like, has lower requirement on the cleanliness of oil, and can greatly reduce the problem of electromagnetic valve core failure caused by oil magazines;
the invention does not need a metal transmission belt with complex process and high cost in the chain type CVT stepless speed changer, can transmit large torque, and simultaneously has the advantages of simple structure and low manufacturing cost;
the invention can obviously reduce the number and cost of parts while improving the service life and reliability of the gearbox, obviously reduce the overall cost of the gearbox, and is favorable for large-scale market popularization and application.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a transmission embodiment 1 of the present invention, shown in a low speed configuration;
FIG. 2 is a schematic diagram of embodiment 1 of the transmission of the present invention, shown in a high speed configuration;
FIG. 3 is a schematic structural view of embodiment 1 of the transmission of the present invention;
FIG. 4 is a schematic mechanical diagram of embodiment 2 of the transmission of the present invention;
FIG. 5 is an enlarged view of the portion of the drive mechanism of FIG. 4;
FIG. 6 is a schematic structural view of embodiment 2 of the transmission of the present invention;
FIG. 7 is a schematic view of the contact positions of a plurality of first and second drive cones of the low speed configuration of FIG. 4;
FIG. 8 is a schematic view of the contact locations of a plurality of first and second drive cones of the high speed configuration of FIG. 4;
FIG. 9 is a schematic structural diagram of another transmission mechanism in embodiment 2 of the transmission of the present invention;
FIG. 10 is a mechanical schematic of embodiment 3 of the transmission of the present invention;
FIG. 11 is a schematic mechanical diagram of embodiment 4 of the transmission of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
Example 1
A transmission, as shown in FIGS. 1-3, includes a driving bevel gear 101, a first driving bevel gear 102, a driven bevel gear 103, a second driving bevel gear 104, and a transmission mechanism 105.
The driving conical disk 101 rotates at a set input speed, the first transmission conical wheel 102 is in contact transmission with the driving conical disk 101, the second transmission conical wheel 104 is in contact transmission with the driven conical disk 103, and the first transmission conical wheel 102 is connected with the second transmission conical wheel 104 through the transmission mechanism 105, wherein the axis of the first transmission conical wheel 102 is perpendicular to the axis of the driving conical disk 101, and the axis of the second transmission conical wheel 104 is perpendicular to the axis of the driven conical disk 103, as shown in fig. 1;
further, the axis of the driving cone plate 101 is collinear (coaxial) with the axis of the driven cone plate 103.
The transmission mechanism 105 in this embodiment may be a gear transmission set, a sprocket transmission set, or a pulley transmission set, such as the gear transmission set shown in fig. 1.
The first transmission cone pulley 102 can displace between the maximum circumference and the minimum circumference of the driving cone disc 101, specifically, as shown in fig. 1 and 2, the driving cone disc 101 can displace axially rightward, and the first transmission cone pulley 102 can displace axially upward and maintain contact friction transmission between the driving cone disc 101 and the first transmission cone pulley 102 all the time.
The second transmission cone pulley 104 can be displaced between the maximum circumference and the minimum circumference of the driven cone disk 103, specifically, as shown in fig. 1 and 2, the driven cone disk 103 can be displaced axially rightward, and the second transmission cone pulley 104 can be displaced axially downward and always maintain the contact friction transmission between the driven cone disk 103 and the second transmission cone pulley 104.
In the present embodiment, the driving cone 101 rotates at a certain speed, when the first driving cone 102 is located at a smaller circumference of the driving cone 101, as shown in fig. 1, the first driving cone 102 obtains a smaller rotation speed, and when the first driving cone 102 is located at a larger circumference of the driving cone 101, as shown in fig. 2, the first driving cone 102 obtains a larger rotation speed.
For example, when the first transmission cone pulley 102 transmits power to the second transmission cone pulley 104 through a gear transmission set having a transmission ratio of 1, when the second transmission cone pulley 104 is located at a smaller circumference of the driven cone disk 103, the speed transmitted from the second transmission cone pulley 104 to the driven cone disk 103 is larger, and when the second transmission cone pulley 104 is located at a larger circumference of the driven cone disk 103, the speed transmitted from the second transmission cone pulley 104 to the driven cone disk 103 is smaller.
In the present embodiment, the contact position between the first transmission cone pulley 102 and the driving cone disk 101 and the contact position between the second transmission cone pulley 104 and the driven cone disk 103 are adjusted to perform the stepless speed change process of the whole apparatus.
Example 2
The present embodiment provides a transmission, as shown in fig. 4 to 9, including an input shaft 201, an output shaft 202, a driving conical disk 203, more than two first driving conical wheels 204, a driven conical disk 205, more than two second driving conical wheels 206, and more than two transmission mechanisms 207, where the first driving conical wheels 204, the second driving conical wheels 206, and the transmission mechanisms 207 are the same in number and correspond to each other one by one.
For example, in this embodiment, eight first transmission conical pulleys 204 and eight second transmission conical pulleys 206 are provided, wherein the eight first transmission conical pulleys 204 are arrayed in the axial direction around the driving conical disk 203, and the eight second transmission conical pulleys 206 are arrayed in the axial direction around the driven conical disk 205, based on the same principle as that of embodiment 1, as shown in fig. 7 and 8, by adjusting the contact position of the first transmission conical pulley 204 and the driving conical disk 203 and/or the contact position of the second transmission conical pulley 206 and the driven conical disk 205, different and continuously changing rotation speeds of the driven conical disk 205 are obtained, and the stepless speed change function is realized.
The following describes the transmission process in detail by taking one of the transmission mechanisms 207 as an example:
as shown in fig. 4 and 5, the transmission mechanism 207 includes a first drive bevel gear 208, a second drive bevel gear 209, a first driven bevel gear 210, a second driven bevel gear 211, a first lead screw 212, a second lead screw 213, a first frame 214, a second frame 215, a first spline shaft 216, a second spline shaft 217, a first transmission gear set 218, a second transmission gear set 219, and a third transmission gear set 220.
The first drive bevel gear 208 and the second drive bevel gear 209 rotate synchronously, and are preferably fixed into a whole;
the first driven bevel gear 210 is meshed with the first driving bevel gear 208, the first screw rod 212 is connected with the first driven bevel gear 210 and rotates along with the first driven bevel gear 210, the second driven bevel gear 211 is meshed with the second driving bevel gear 209, and the second screw rod 213 is connected with the second driven bevel gear 211 and rotates along with the second driven bevel gear 211;
the first spline shaft 216 is parallel to the first lead screw 212, the first frame 214 is arranged on the first lead screw 212 to form a nut-lead screw pair, one transmission gear in the first transmission gear set 219 is slidably sleeved on the first spline shaft 216 and is rotatably arranged on the first frame 214, so that the one transmission gear and the first spline shaft 216 can slide relatively while synchronously rotating, and the other transmission gear in the first transmission gear set 218 and the first transmission bevel gear 204 synchronously rotate;
the second spline shaft 217 is parallel to the second screw rod 213, the second frame 215 is arranged on the second screw rod 213 to form a nut screw rod pair, one transmission gear in the second transmission gear set is slidably sleeved on the second spline shaft 217 and rotatably arranged on the second frame 215 to form synchronous rotation between the one transmission gear and the second spline shaft 217 and simultaneously can relatively slide, and the other transmission gear in the second transmission gear set 219 and the second transmission bevel wheel 206 synchronously rotate;
two transmission gears of the third transmission gear set 220 are respectively provided at the first spline shaft 216 and the second spline to transmit power by rotation.
The distance between the driving cone pulley 203 and the driven cone pulley 205 of this embodiment is preferably a constant value, and the two pulleys synchronously slide to the left or the right, and the first lead screw 212 and the second lead screw 213 in the same transmission mechanism 207 ascend and descend, or vice versa.
The power transmission process in this embodiment is:
The preferred shifting process in this embodiment is (taking the adjustment from the highest speed to the lowest speed as an example):
the driving bevel gear 203 and the driven bevel gear 205 are driven by the hydraulic cylinders 228 and 318 to slide rightward, and simultaneously, the first driving bevel gear 208 and the second driving bevel gear 209 are driven to rotate → the first driven bevel gear 210 and the second driven bevel gear 211 are reversely rotated → the first lead screw 212 and the second lead screw 213 are reversely rotated → the first frame 214 is lowered, the second frame 215 is raised → the first transmission bevel gear 204 is lowered while maintaining the contact friction with the driving bevel gear 203, the second transmission bevel gear 206 is raised while maintaining the contact friction with the driven bevel gear 205 → the contact position of the first transmission bevel gear 204 and the driving bevel gear 203 is changed, and the contact position of the second transmission bevel gear 206 and the driven bevel gear 205 is changed → the rotation speed is reduced.
In other examples of the present invention, different numbers of the first transmission cone pulley 204 and the second transmission cone pulley 206 can be designed according to design requirements, as shown in fig. 9.
Other components and connection relations related to fig. 4 in this embodiment are applicable to the prior art, for example, the driving conical disk 203 is connected with the input shaft 201 by using a spline sleeve 221, a transmission structure and a differential 222 are arranged between the driven conical disk 205 and the output shaft 202, and a clutch 223, a clutch input shaft 224, a reverse gear 225, a synchronizer ring 226, a starting and advancing gear 227 and the like are related.
Example 3
The present embodiment provides a transmission, as shown in fig. 10, which is different from embodiment 2 in that a first speed regulation slider 301 with end-face threads is used in a transmission mechanism to replace a first lead screw, so as to form an end-face thread pair between the first speed regulation slider 301 and a first frame 302, a second speed regulation slider 303 with end-face threads is used to replace a second lead screw, and an end-face thread pair is formed between the second speed regulation slider 303 and a second frame 304.
Example 4
The present embodiment provides a transmission, as shown in fig. 10, the difference between the present embodiment and embodiment 3 is that an input shaft of a driving conical disk and an output shaft of a driven conical disk are arranged in parallel to form a structure that is parallel to each other, and other transmission structures are adjusted adaptively, which is not described herein again.
The embodiment can effectively save transverse space, and is particularly suitable for large-torque variable-speed output occasions.
The power transmission process in this embodiment is:
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims (10)
1. A transmission device, comprising:
an active cone disk;
at least one first transmission cone pulley in contact transmission with the driving cone disc;
the first drive cone is displaceable between a maximum circumference and a minimum circumference of the drive cone;
a driven conical disc;
at least one second transmission cone pulley in contact transmission with the driven cone disc;
the second transmission cone pulley is capable of shifting between a maximum circumference and a minimum circumference of the driven cone disk;
and
and the first transmission cone pulley is connected with the second transmission cone pulley through the transmission mechanism.
2. The transmission of claim 1, wherein the axis of the first drive cone pulley is perpendicular to the axis of the drive cone disc and the axis of the second drive cone pulley is perpendicular to the axis of the driven cone disc.
3. The transmission of claim 2, wherein the drive cone disc and the first drive cone pulley are each axially displaceable and the driven cone disc and the second drive cone pulley are each axially displaceable.
4. The transmission of claim 1, wherein the transmission comprises at least a gear/sprocket/pulley drive set.
5. The transmission of claim 4, wherein the transmission further comprises a first drive bevel gear, a second drive bevel gear, a first driven bevel gear, a second driven bevel gear, a first lead screw, and a second lead screw;
the first driving bevel gear and the second driving bevel gear synchronously rotate;
the first driven bevel gear is meshed with the first driving bevel gear, the first screw rod is connected with the first driven bevel gear and rotates along with the first driven bevel gear, and the first driven bevel gear is driven by the first screw rod to be capable of moving along the axial direction of the first screw rod;
the second driven bevel gear is meshed with the second driving bevel gear, the second screw rod is connected with the second driven bevel gear and rotates along with the second driven bevel gear, and the second driven bevel gear is driven by the second screw rod to be capable of moving along the axial direction of the second screw rod.
6. The transmission of claim 5, wherein the transmission further comprises a first frame, a second frame, a first spline shaft, a second spline shaft, a first drive gear set, and a second drive gear set;
the first spline shaft is parallel to the first screw rod, the first rack is arranged on the first screw rod, one transmission gear in the first transmission gear set is slidably sleeved on the first spline shaft and is rotatably arranged on the first rack, and the other transmission gear in the first transmission gear set and the first transmission bevel wheel synchronously rotate;
the second spline shaft is parallel to the second screw rod, the second rack is arranged on the second screw rod, one transmission gear in the second transmission gear set is slidably sleeved on the second spline shaft and rotatably arranged on the second rack, and the other transmission gear in the second transmission gear set and the second transmission bevel wheel synchronously rotate;
two transmission wheels in the gear/chain wheel/belt wheel transmission set are respectively arranged on the first spline shaft and the second spline shaft.
7. The transmission according to claim 5, wherein two or more of the first transmission cones and the second transmission cones are provided, the two or more of the first transmission cones are arrayed or distributed to be opposed to each other with the axis of the driving cone plate as a center, and the two or more of the second transmission cones are arrayed or distributed to be opposed to each other with the axis of the driven cone plate as a center.
8. The transmission according to claim 7, wherein there are provided two or more first driven bevel gears in the same number as the first driving bevel gears, the two or more first driven bevel gears each meshing with the first driving bevel gear; more than two second driven bevel gears with the same number as the second transmission bevel gears are arranged, and the more than two second driven bevel gears are meshed with the second driving bevel gears.
9. The transmission of claim 5 wherein said first lead screw is replaced with a first speed slide having end face threads and said second lead screw is replaced with a second speed slide having end face threads.
10. A gearbox comprising at least one set of transmission devices according to any of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186979.6A CN112815056A (en) | 2021-02-10 | 2021-02-10 | Speed changing device and gearbox |
| PCT/CN2021/090217 WO2022170679A1 (en) | 2021-02-10 | 2021-04-27 | Variable transmission device and gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186979.6A CN112815056A (en) | 2021-02-10 | 2021-02-10 | Speed changing device and gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112815056A true CN112815056A (en) | 2021-05-18 |
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ID=75865496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110186979.6A Pending CN112815056A (en) | 2021-02-10 | 2021-02-10 | Speed changing device and gearbox |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112815056A (en) |
| WO (1) | WO2022170679A1 (en) |
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| US6471618B2 (en) * | 2000-05-16 | 2002-10-29 | Visteon Global Technologies, Inc. | Torque biasing device, speed matching device and control methods |
| KR100480677B1 (en) * | 2002-08-19 | 2005-04-06 | 박영일 | spherical surface body type-continuously variable transmission with differential function |
| CN103711852A (en) * | 2013-12-15 | 2014-04-09 | 重庆大久科技发展有限公司 | Rock shaft type gasoline engine adjusting device |
| CN204942432U (en) * | 2015-07-10 | 2016-01-06 | 常熟市谷雷特机械产品设计有限公司 | A kind of slip stepless speed changing mechanism being applicable to non-colinear transmission |
| CN106979291A (en) * | 2015-07-10 | 2017-07-25 | 常熟市谷雷特机械产品设计有限公司 | A kind of slip stepless speed changing mechanism being driven for non-colinear |
| CN106838190B (en) * | 2016-12-21 | 2019-05-17 | 四川大学 | A kind of parallel axes is without the towed stepless transmission that spins |
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2021
- 2021-02-10 CN CN202110186979.6A patent/CN112815056A/en active Pending
- 2021-04-27 WO PCT/CN2021/090217 patent/WO2022170679A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2022170679A1 (en) | 2022-08-18 |
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