CN220168474U - Screw thread type continuously variable transmission and single-stage type and two-stage type continuously variable transmission group thereof - Google Patents
Screw thread type continuously variable transmission and single-stage type and two-stage type continuously variable transmission group thereof Download PDFInfo
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- CN220168474U CN220168474U CN202223214816.3U CN202223214816U CN220168474U CN 220168474 U CN220168474 U CN 220168474U CN 202223214816 U CN202223214816 U CN 202223214816U CN 220168474 U CN220168474 U CN 220168474U
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Abstract
The utility model discloses a screw thread type continuously variable transmission and a single-stage type continuously variable transmission group and a two-stage type continuously variable transmission group thereof. The driving working wheel set and the driven working wheel set of the transmission mechanism are composed of a fixed conical disc and a movable conical disc; the control system comprises an electric control device, a threaded control rod, a rotary separation device and a synchronizer, wherein the electric control device is used for controlling forward rotation and reverse rotation of the threaded control rod to realize axial movement of the synchronizer on the threaded control rod, and the synchronizer drives the movable conical discs on the driving working wheel set and the driven working wheel set to synchronously move in the same direction through the rotary separation device, so that the effective working radiuses of the driving working wheel set, the driven working wheel set and the transmission belt are changed, the transmission ratio is changed, and stepless speed change of the transmission mechanism is realized. The stepless speed changer has compact structure, can be combined into a single-stage stepless speed changer group to realize large torque power transmission, and can also be combined into a two-stage stepless speed changer group to expand the transmission ratio range.
Description
Technical Field
The utility model relates to a transmission, in particular to a threaded continuously variable transmission and a single-stage type continuously variable transmission group and a two-stage type continuously variable transmission group thereof.
Background
The existing continuously variable transmission is mainly applied to continuously variable transmission of vehicle power, so that a power transmission system of the vehicle is in an optimal transmission ratio at any time, and the power performance and the fuel economy of the vehicle are improved.
The continuously variable transmission applied to the vehicle at present mainly comprises a driving working wheel set, a driven working wheel set, a transmission belt and a complex hydraulic control system, wherein the driving working wheel set and the driven working wheel set are composed of a fixed conical disc and a movable conical disc, and the fixed conical disc and the movable conical disc form the working wheel set together to be connected with the transmission belt, so that power transmission is realized. The movable conical disc realizes axial movement on the driving shaft and the driven shaft in a hydraulic control mode, and the axial movement of the movable conical disc changes the distance between the movable conical disc and the fixed conical disc, so that the effective working radius of a driving belt on a driving working wheel set and a driven working wheel set is changed, and the change of the transmission ratio of the continuously variable transmission is realized. This necessitates a complex hydraulic control system on the continuously variable transmission at the present stage, resulting in a large amount of power loss.
In addition, the stepless speed changer in the structure of the fixed conical disc and the movable conical disc can inevitably change the axial positions of the transmission belt and the rotating shaft due to the axial movement of the movable conical disc in the speed change process, and if the axial movement of the movable conical disc on the driving working wheel set and the driven working wheel set is asynchronous, the stepless speed changer can not work normally and can damage related parts. In order to change the axial positions of the driving belt and the rotating shaft and realize the speed change function, the continuously variable transmission at the present stage is provided with a complex hydraulic control system, the hydraulic system on the driving working wheel set controls the axial movement of the movable conical disc, the hydraulic system on the driven working wheel set controls the tension of the driving belt, the synchronous axial movement of the movable conical disc on the driving working wheel and the driven working wheel is effectively ensured under the mutual coordination, but a plurality of control valves on the hydraulic system lead the whole structure of the transmission to be complex, and the control logic is extremely complex.
When the continuously variable transmission is used for low-speed and high-torque transmission, the effective working radius of the driving belt on the driving working wheel set is reduced, the effective contact area of the driving belt and the driving working wheel set is also reduced, and therefore, the phenomenon of skidding of the driving belt possibly occurs due to insufficient friction force. This not only results in insufficient power for the vehicle, but also results in significant power loss. For the same reasons as above, the present continuously variable transmission can be applied only to small displacement automobiles.
The continuously variable transmission applied to the vehicle at the present stage cannot realize larger transmission ratio due to the structural limitation, and can be normally used only by being matched with other speed reducers in special occasions, and has the advantages of complex structure, high cost and incapability of whole-course continuously variable transmission.
Disclosure of Invention
In order to solve the problems, the utility model discloses a transmission, and particularly relates to a threaded continuously variable transmission and a single-stage type continuously variable transmission group and a two-stage type continuously variable transmission group thereof.
A screw-type continuously variable transmission comprising
The transmission mechanism comprises a driving working wheel set, a driven working wheel set, a transmission belt and a rotating shaft which respectively penetrates through axle center round holes of the driving working wheel set and the driven working wheel set; the driving working wheel set and the driven working wheel set comprise a fixed conical disc and a movable conical disc; the fixed cone disc and the movable cone disc are embedded with the rotating shaft in a mode of integrally rotating with the rotating shaft, the fixed cone disc cannot move along the axial direction of the rotating shaft, and the movable cone disc can move along the axial direction of the rotating shaft; the driving working wheel set and the driven working wheel set are in transmission connection through the transmission belt;
the control system comprises an electric control device, a threaded control rod, a rotary separation device and a synchronizer; the rotating shaft and the control end of the movable conical disc can pass through the middle of the control ring of the synchronizer; the inner surface of the control ring of the synchronizer is connected with the outer surface of the control end of the movable conical disc through the rotary separation device; the threaded hole of the synchronizer middle connecting rod is in transmission connection with the threaded control rod; the middle connecting rod of the synchronizer is positioned at the middle position of the axes of the driving working wheel set and the driven working wheel set, is parallel to the rotating shaft and passes through the middle of the transmission belt; the electric control device is connected with the first end of the threaded control rod through a transmission element.
Further, the middle part of the threaded control rod is provided with threads, and the threaded control rod is in threaded transmission connection with an internal threaded hole of the middle connecting rod of the synchronizer.
Further, the synchronizer is of an integral structure and comprises an intermediate connecting rod, two connecting arms and two control rings; the middle connecting rod is a cylindrical hollow rod piece, and a threaded through hole for threaded transmission is formed in the axis position of the middle connecting rod; the connecting arm is a trapezoid-like plate, and the upper plane and the lower plane of the trapezoid are arc-shaped grooves; the control ring is of a thin-wall circular ring structure; the small ends of the two connecting arms are symmetrically connected with the middle connecting rod coaxially at 180 degrees at the two axial ends of the middle connecting rod, and the planes at the two axial ends of the middle connecting rod are coplanar with the first planes of the corresponding connecting arms; the two control rings are coaxially connected with the large ends of the two connecting arms, and the second plane of the connecting arms is coplanar with the first plane of the control rings; the two connecting arms (42) connect the intermediate link (41) and the two control rings (43) as a unitary structure.
Further, the rotational separation device is a bearing or a clutch.
The single-stage type continuously variable transmission group comprises two groups of transmission mechanisms and a group of control systems of the threaded type continuously variable transmission; the two groups of transmission mechanisms of the screw thread type continuously variable transmission are arranged in the axis direction of the middle connecting rod of the synchronizer, the driving working wheel sets of the two groups of transmission mechanisms of the screw thread type continuously variable transmission share the same rotating shaft, and the driven working wheel sets of the two groups of transmission mechanisms of the screw thread type continuously variable transmission share the same rotating shaft; two groups of transmission mechanisms of the thread type continuously variable transmission share the same electric control device, a thread control lever and a single-stage synchronizer.
Further, the single-stage synchronizer comprises two structures of the synchronizers, the two structures of the synchronizers are arranged along the axis direction of the intermediate connecting rod in the same posture, and the single-stage synchronizer is connected into a whole structure by extending the intermediate connecting rod.
The two-stage type continuously variable transmission group comprises two groups of transmission mechanisms and a group of control systems of the threaded type continuously variable transmission; two groups of transmission mechanisms of the thread type continuously variable transmission are arranged in a 180-degree reversing way in the axis direction of the middle connecting rod of the synchronizer; two groups of transmission mechanisms of the thread type continuously variable transmission share the same electric control device, a thread control lever and a two-stage synchronizer; the two-stage synchronizer is connected with a primary transmission mechanism and a secondary transmission mechanism which are arranged at 180 degrees; the driving working wheel set rotating shaft of the primary transmission mechanism is an input shaft; the driven working wheel set rotating shaft of the secondary transmission mechanism is an output shaft; the driven working wheel set of the primary transmission mechanism and the driving working wheel set of the secondary transmission mechanism share the same intermediate shaft to integrally rotate.
Further, the two-stage synchronizer includes two structures of the synchronizer and is arranged in a 180-degree reversing manner in the axial direction of the intermediate connecting rod, and the two-stage synchronizer is connected into a whole structure together with the intermediate connecting rod by combining two groups of connecting arms and control rings at the same position into one group of connecting arms and control rings.
The utility model has the beneficial effects that
1. According to the screw thread type continuously variable transmission, the axial movement of the movable conical disc is realized by controlling the synchronizer, a hydraulic system for controlling the axial movement of the movable conical disc is omitted, and on the premise that the continuous speed change function of the continuously variable transmission can be exerted, the structure is simplified, the cost is reduced, and the miniaturization of the continuously variable transmission can be realized;
2. when the single-stage type continuously variable transmission is formed, as the two groups of transmission mechanisms work simultaneously, the speed change transmission with larger torque can be realized, so that the single-stage type continuously variable transmission can be applied to equipment needing to transmit larger load, and the application range of the continuously variable transmission is greatly expanded;
3. when the screw thread type continuously variable transmission is formed into a two-stage type continuously variable transmission group, as the two groups of transmission mechanisms can expand the transmission ratio range step by step, a larger speed change ratio can be realized in a smaller space, and a specific effect can be realized in some special occasions.
Drawings
FIG. 1 is a block diagram of a threaded continuously variable transmission;
FIG. 2 is an exploded view of a threaded continuously variable transmission configuration;
FIG. 3 is a schematic three-dimensional structure of a synchronizer;
FIG. 4 is a schematic illustration of a single stage continuously variable transmission set;
FIG. 5 is a schematic three-dimensional structure of a single stage synchronizer;
FIG. 6 is a schematic diagram of a two-stage continuously variable transmission set;
FIG. 7 is a schematic three-dimensional structure of a two-stage synchronizer;
fig. 8 is a schematic view of a drive belt.
Wherein: 1-an electric control device; 2-threaded lever; 3-driven working wheel set; a 4-synchronizer; 41-an intermediate link; 42-connecting arms; 43-control loop; 5-rotating the separation device; 6-rotating shaft; 7-driving a working wheel set; 8-a transmission belt; 9-single stage synchronizer; 10-an input shaft; 11-two stages of synchronizers; 12-an intermediate shaft; 13-an output shaft; 14-a primary transmission mechanism; 15-a two-stage transmission mechanism; 31. 71-fixing a conical disc; 32. 72-movable conical disk.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, wherein the embodiments of the present utility model are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and wherein various substitutions and modifications are made by the person of ordinary skill in the art without departing from the technical spirit of the present utility model, and are intended to be included in the scope of the present utility model.
As shown in fig. 1, the screw-type continuously variable transmission includes
The transmission mechanism comprises a driving working wheel set, a driven working wheel set, a transmission belt and a rotating shaft which respectively penetrates through axle center round holes of the driving working wheel set and the driven working wheel set; the driving working wheel set and the driven working wheel set comprise a fixed conical disc and a movable conical disc; the fixed cone disc and the movable cone disc are embedded with the rotating shaft in a mode of integrally rotating with the rotating shaft, the fixed cone disc cannot move along the axial direction of the rotating shaft, and the movable cone disc can move along the axial direction of the rotating shaft; the driving working wheel set and the driven working wheel set are in transmission connection through the transmission belt;
the control system comprises an electric control device, a threaded control rod, a rotary separation device and a synchronizer; the rotating shaft and the control end of the movable conical disc can pass through the middle of the control ring of the synchronizer; the inner surface of the control ring of the synchronizer is connected with the outer surface of the control end of the movable conical disc through the rotary separation device; the threaded hole of the synchronizer middle connecting rod is in transmission connection with the threaded control rod; the middle connecting rod of the synchronizer is positioned at the middle position of the axes of the driving working wheel set and the driven working wheel set, is parallel to the rotating shaft and passes through the middle of the transmission belt; the electric control device is connected with the first end of the threaded control rod through a transmission element.
As shown in fig. 1, the driving working wheel set and the driven working wheel set are composed of a fixed conical disc and a movable conical disc, and the conical surfaces of the two conical discs of the driving working wheel set and the driven working wheel set form V-shaped grooves to be meshed with a V-shaped transmission belt. The power is firstly input into the driving working wheel set and then is transmitted to the driven working wheel set through the V-shaped transmission belt. When the automatic transmission device works, the synchronizer controls the movable conical discs on the driving working wheel set and the driven working wheel set to axially synchronously move in the same direction on the rotating shaft, so that the effective working radius of the driving working wheel set and the driven working wheel set which are meshed with the transmission belt is changed, and the stepless speed change is realized.
The inner surface of the rotary separation device is contacted with the outer surface of the control end of the movable conical disc and synchronously rotates, and the outer surface of the rotary separation device is contacted with the inner surface of the round hole of the control ring of the synchronizer and is kept relatively static with the synchronizer. When the synchronizer moves axially, the rotary separation device is driven to move axially together with the movable conical disc, but the rotary movement of the movable conical disc cannot be influenced.
The synchronizer is connected with the threaded control rod through threaded transmission, when the threaded control rod rotates clockwise, the synchronizer moves forwards in the axial direction of the threaded control rod, and the movable cone discs of the driving working wheel set and the driven working wheel set are driven to move forwards synchronously, so that the transmission belt moves forwards synchronously with the central plane of the axial line of the driving working wheel set and the central plane of the axial line of the driven working wheel set, and the normal work of the continuously variable transmission is ensured; when the screw operating rod rotates anticlockwise, the synchronizer moves backwards in the axial direction of the screw operating rod, and the transmission belt moves backwards synchronously with the central plane of the axial line of the driving working wheel set and the central plane of the axial line of the driven working wheel set in the same way, so that the stepless speed changer can work normally.
The rotational disconnecting means is a bearing or a clutch.
The electric control device realizes the axial movement of the synchronizer on the threaded control rod by controlling the clockwise or anticlockwise rotation of the threaded control rod.
The electric control device 1 can be composed of a motor, a sensor, an electric control unit, a transmission element and the like, wherein the transmission element is connected with one end of a threaded control rod, as shown in fig. 1.
Working principle of screw thread type continuously variable transmission:
as shown in fig. 1, power is first input to the driving working wheel set 7, and then transmitted to the driven working wheel set 3 through the transmission belt 8 and output. When the electric control device 1 drives the screw operating rod 2 to rotate clockwise, the synchronizer 4 moves forwards in the axis direction of the screw operating rod through screw transmission, the synchronizer 4 moves forwards to drive the active working wheel set 7 and the movable cone disc on the driven working wheel set 3 to move synchronously and in the same direction, at the moment, the effective working radius of the active working wheel set 7 meshed with the transmission belt 8 is gradually increased, the effective working radius of the driven working wheel set 3 meshed with the transmission belt 8 is gradually reduced, and the process realizes stepless speed change from low rotation speed to high rotation speed. Because the movable conical discs on the driving working wheel set 7 and the driven working wheel set 3 synchronously move in the same direction, the transmission belt 8 synchronously moves with the central plane of the axis of the driving working wheel set 7 and the central plane of the axis of the driven working wheel set 3, and the accuracy and the high efficiency of the stepless speed change process are ensured.
Conversely, when the electric control device 1 drives the threaded control rod 2 to rotate anticlockwise, the synchronizer 4 moves backwards in the axis direction of the threaded control rod through the threaded transmission, the synchronizer 4 moves backwards to drive the movable conical discs on the driving working wheel set 7 and the driven working wheel set 3 to synchronously move in the same direction, at the moment, the effective working radius of the driving working wheel set 7 meshed with the driving belt 8 is gradually reduced, the effective working radius of the driven working wheel set 3 meshed with the driving belt 8 is gradually increased, and the process realizes stepless speed change of the output rotating speed from high rotating speed to low rotating speed.
The single-stage type continuously variable transmission group comprises two groups of transmission mechanisms and a group of control systems of the threaded type continuously variable transmission; the two groups of transmission mechanisms of the screw thread type continuously variable transmission are arranged in the axis direction of the middle connecting rod of the synchronizer, the driving working wheel sets of the two groups of transmission mechanisms of the screw thread type continuously variable transmission share the same rotating shaft, and the driven working wheel sets of the two groups of transmission mechanisms of the screw thread type continuously variable transmission share the same rotating shaft; two groups of transmission mechanisms of the thread type continuously variable transmission share the same electric control device, a thread control lever and a single-stage synchronizer. The single stage synchronizer connects the two sets of gears in the same manner as the threaded continuously variable transmission shown in fig. 1.
Principle of operation of a single stage continuously variable transmission group:
as shown in fig. 4, the operating principle of the single-stage continuously variable transmission group is basically identical to that of the screw-type continuously variable transmission shown in fig. 1, the screw-type continuously variable transmission shown in fig. 1 has only one group of transmission mechanisms, and the single-stage continuously variable transmission group shown in fig. 4 includes two groups of transmission mechanisms arranged in the axial direction of the intermediate link of the synchronizer. When the electric control device 1 controls the threaded control rod 2 to rotate, the threaded control rod 2 controls the single-stage synchronizer 9 to axially move through threaded transmission, so that the movable conical discs in the two groups of transmission mechanisms are controlled to synchronously move in the same direction, the transmission belt 8 and the corresponding driving working wheel group 7 and driven working wheel group 3 synchronously move in the same direction, the effective working radius of the driving working wheel group 7 and the driven working wheel group 3 respectively meshed with the transmission belt 8 is correspondingly increased and reduced, the stepless speed change of the single-stage stepless speed changer group is realized, and the control mode of the single-stage synchronizer 9 is the same as that of the synchronizer 4 in the stepless speed changer shown in fig. 1. As the single-stage synchronizer moves in the axial direction of the threaded control rod, the two groups of transmission mechanisms simultaneously perform speed-increasing or speed-reducing transmission, and the speed-changing transmission with larger torque can be realized.
The two-stage type continuously variable transmission group comprises two groups of transmission mechanisms and a group of control systems of the threaded type continuously variable transmission; two groups of transmission mechanisms of the thread type continuously variable transmission are arranged in a 180-degree reversing way in the axis direction of the middle connecting rod of the synchronizer; two groups of transmission mechanisms of the thread type continuously variable transmission share the same electric control device, a thread control lever and a two-stage synchronizer; the two-stage synchronizer is connected with a primary transmission mechanism and a secondary transmission mechanism which are arranged at 180 degrees in the axial direction of a middle connecting rod of the synchronizer; the driving working wheel set rotating shaft of the primary transmission mechanism is an input shaft; the driven working wheel set rotating shaft of the secondary transmission mechanism is an output shaft; the driven working wheel set of the primary transmission mechanism and the driving working wheel set of the secondary transmission mechanism share the same intermediate shaft to integrally rotate.
Principle of operation of a two-stage continuously variable transmission group:
as shown in fig. 6, when the two-stage continuously variable transmission is operated, power is firstly input to the driving working wheel set of the primary transmission mechanism 14 through the input shaft 10, then the power is transmitted from the driving working wheel set of the primary transmission mechanism 14 to the driven working wheel set through the transmission belt, and as the driven working wheel set of the primary transmission mechanism 14 and the driving working wheel set of the secondary transmission mechanism 15 share one intermediate rotating shaft 12, the power is transmitted to the driving working wheel set of the secondary transmission mechanism 15, and then the power is transmitted from the driving working wheel set of the secondary transmission mechanism 15 to the driven working wheel set through the transmission belt and is output through the output shaft 13. Because the primary transmission mechanism 14 and the secondary transmission mechanism 15 are arranged in a 180-degree reversing way in the axial direction of the middle connecting rod of the synchronizer, the movable conical discs of the primary driving working wheel set and the secondary driving working wheel set are positioned at adjacent positions, the two-stage synchronizer 11 connects the movable conical discs of each stage through a rotary separation device, and the movable conical discs of each stage synchronously move in the same direction under the control of the two-stage synchronizer 11, so that the driving belt synchronously moves in the same direction with the corresponding driving working wheel set and the corresponding driven working wheel set, and the effective working radius of each stage of driving working wheel set and each driven working wheel set which are respectively meshed with the driving belt is correspondingly increased and reduced, thereby realizing stepless speed change. Because the two-stage synchronizer moves along the axial direction of the threaded control rod, the primary transmission mechanism 14 and the secondary transmission mechanism 15 respectively and simultaneously carry out speed increasing or speed reducing transmission, and the transmission ratio of the continuously variable transmission can be amplified step by step.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "clockwise", "counterclockwise", "forward", "backward" and "forth" are merely used to indicate that the embodiment is described at a particular point of view, and if the point of view is changed, the terms "clockwise", "counterclockwise", "forward", "backward" and "forward" are used to indicate that the entity or operation described herein is not changed in consistency.
Claims (7)
1. A screw-type continuously variable transmission comprising
The transmission mechanism comprises a driving working wheel set (7), a driven working wheel set (3), a transmission belt (8) and a rotating shaft (6) which respectively penetrates through axle center round holes of the driving working wheel set and the driven working wheel set; the driving working wheel set (7) and the driven working wheel set (3) comprise a fixed conical disc and a movable conical disc; the fixed conical disc and the movable conical disc are embedded with the rotating shaft (6) in a mode of integrally rotating with the rotating shaft (6), the fixed conical disc cannot move along the axial direction of the rotating shaft (6), and the movable conical disc can move along the axial direction of the rotating shaft (6); the driving working wheel set (7) and the driven working wheel set (3) are in transmission connection through the transmission belt (8);
the control system comprises an electric control device (1), a threaded control rod (2), a rotary separation device (5) and a synchronizer (4); the rotating shaft (6) and the control end of the movable conical disc can pass through the middle of the control ring of the synchronizer (4); the inner surface of the control ring of the synchronizer (4) is connected with the outer surface of the control end of the movable conical disc through the rotary separation device (5); the threaded hole of the middle connecting rod of the synchronizer (4) is in transmission connection with the threaded control rod (2); the middle connecting rod of the synchronizer (4) is positioned at the middle position of the axes of the driving working wheel set and the driven working wheel set, is parallel to the rotating shaft (6) and passes through the middle of the transmission belt (8); the electric control device (1) is connected with the first end of the threaded control rod (2) through a transmission element.
2. The threaded continuously variable transmission according to claim 1, wherein the threaded control rod (2) is provided with a thread in the middle thereof, and is in threaded driving connection with an internally threaded hole of a connecting rod in the middle of the synchronizer (4).
3. A screw-type continuously variable transmission according to claim 1, characterized in that said synchronizer (4) is of one unitary structure comprising an intermediate link (41), two connecting arms (42) and two control rings (43); the middle connecting rod (41) is a cylindrical hollow rod piece, and a threaded through hole for threaded transmission is arranged at the axial center of the middle connecting rod; the connecting arm (42) is a trapezoid-like plate, and the upper plane and the lower plane of the trapezoid-like plate are arc-shaped grooves; the control ring (43) is of a thin-wall circular ring structure; the small ends of the two connecting arms (42) are symmetrically connected with the middle connecting rod (41) coaxially at 180 degrees at the two axial ends of the middle connecting rod (41), and the planes of the two axial ends of the middle connecting rod (41) are coplanar with the first planes of the corresponding connecting arms (42); the two control rings (43) are coaxially connected to the large ends of the two connecting arms (42), and the second plane of the connecting arms (42) is coplanar with the first plane of the control rings (43); the two connecting arms (42) connect the intermediate link (41) and the two control rings (43) as a unitary structure.
4. A single-stage continuously variable transmission set comprising two sets of said transmission mechanisms and one set of said control systems of a screw-type continuously variable transmission as claimed in any one of claims 1 to 3; the two groups of transmission mechanisms of the screw thread type continuously variable transmission are arranged in the axis direction of the middle connecting rod of the synchronizer, the driving working wheel groups of the two groups of transmission mechanisms of the screw thread type continuously variable transmission share the same rotating shaft, and the driven working wheel groups of the two groups of transmission mechanisms of the screw thread type continuously variable transmission share the same rotating shaft; two groups of transmission mechanisms of the screw thread type continuously variable transmission share the same electric control device (1), a screw thread control lever (2) and a single-stage synchronizer (9).
5. The single-stage continuously variable transmission set according to claim 4, wherein the single-stage synchronizer (9) comprises two structures of the synchronizers (4) and is arranged along the axial direction of the intermediate link while maintaining the same posture, and the structures of the two synchronizers (4) are connected into a single structure by extending the intermediate link.
6. A two-stage continuously variable transmission set comprising two sets of said transmission mechanisms and one set of said control systems of a screw-type continuously variable transmission as claimed in any one of claims 1 to 3; two groups of transmission mechanisms of the screw thread type continuously variable transmission are arranged in a 180-degree reversing way in the axis direction of the middle connecting rod of the synchronizer; two groups of transmission mechanisms of the thread type continuously variable transmission share the same electric control device (1), a thread control lever (2) and a two-stage synchronizer (11); the two-stage synchronizer (11) is connected with a primary transmission mechanism (14) and a secondary transmission mechanism (15) which are arranged at 180 degrees; the rotating shaft of the driving working wheel set of the primary transmission mechanism (14) is an input shaft (10); the driven working wheel set rotating shaft of the secondary transmission mechanism (15) is an output shaft (13); the driven working wheel set of the primary transmission mechanism (14) and the driving working wheel set of the secondary transmission mechanism (15) share the same intermediate shaft (12) to integrally rotate.
7. The two-stage continuously variable transmission set according to claim 6, wherein the two-stage synchronizer (11) includes a structure of two of the synchronizers (4) and is arranged in 180 ° reversing in an axial direction of the intermediate link, and the two-stage synchronizer is connected as a unitary structure by combining two sets of connecting arms and control rings in the same position into one set of connecting arms and control rings together with the intermediate link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223214816.3U CN220168474U (en) | 2022-12-01 | 2022-12-01 | Screw thread type continuously variable transmission and single-stage type and two-stage type continuously variable transmission group thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223214816.3U CN220168474U (en) | 2022-12-01 | 2022-12-01 | Screw thread type continuously variable transmission and single-stage type and two-stage type continuously variable transmission group thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168474U true CN220168474U (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223214816.3U Active CN220168474U (en) | 2022-12-01 | 2022-12-01 | Screw thread type continuously variable transmission and single-stage type and two-stage type continuously variable transmission group thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168474U (en) |
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2022
- 2022-12-01 CN CN202223214816.3U patent/CN220168474U/en active Active
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