CN213929349U

CN213929349U - Speed change mechanism for automobile continuously variable transmission

Info

Publication number: CN213929349U
Application number: CN202022248127.9U
Authority: CN
Inventors: 杨昌雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-08-10
Anticipated expiration: 2030-10-10

Abstract

The utility model relates to the technical field of a continuously variable transmission, and discloses a speed change mechanism for an automobile continuously variable transmission, which comprises an input shaft, wherein the input shaft drives a gear ring to rotate by a driving wheel, the gear ring is meshed with and drives a first planet gear, the first planet gear is meshed with and drives a second planet gear, the second planet gear is meshed with and drives a central gear, an interaction force exists between the second planet gear and the first planet gear and is fixed on a bracket, so that the second planet gear cannot be shifted, when the rotating speed of the input shaft and the driving wheel is lower, the first planet gear and the second planet gear are pulled by the gear ring to further drive the bracket to rotate, the bracket rotates and drives a sleeve to rotate, the sleeve rotates and drives a second sprocket to rotate by a first sprocket and a chain, the second sprocket rotates and drives a resistance shaft to rotate, the resistance shaft can drive a driving wheel to rotate by a driving wheel when rotating, the driving wheel rotates and drives a fixed rod and an output shaft to rotate by the driven wheel and a planet carrier, and thus can drive the output shaft to rotate.

Description

Speed change mechanism for automobile continuously variable transmission

Technical Field

The utility model relates to a continuously variable transmission technical field specifically is a speed change mechanism for automobile continuously variable transmission.

Background

In the prior art, most gearboxes on the market are mainly divided into two types, one type is a gear ratio step type, and the other type is a friction variable pitch type. However, in practical applications, the two types of gearboxes have respective disadvantages, for example, the gear ratio stepped gearbox has a pause feeling during gear shifting, and the torque of the friction pitch variable gearbox is easy to slip.

In the modern day with the advanced technology, people utilize various high technologies to measure and calculate the critical value at the moment of gear shifting, and use various new materials to strengthen the strength of the steel strip, but the steel strip is close to stability to the maximum.

Based on this, we propose a speed change mechanism for an automobile continuously variable transmission, and hopefully solve the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a speed change mechanism for automobile continuously variable transmission possesses the advantage that the variable speed benefit is high.

(II) technical scheme

In order to realize the purpose that the above-mentioned variable speed benefit is high, the utility model provides a following technical scheme: a speed change mechanism for an automobile continuously variable transmission comprises a transfer case, wherein an input shaft is arranged in the transfer case, the outer wall of the input shaft is fixedly connected with a driving wheel, the outer wall of the driving wheel is meshed with a gear ring, the inner wall of the gear ring is meshed with a first planetary gear, the outer wall of the first planetary gear is meshed with a second planetary gear, the outer wall of the second planetary gear is meshed with a central gear, and an output shaft is fixedly connected to the center of the central gear;

the centers of the first planetary gear and the second planetary gear are movably connected with a support, the outer wall of the support is fixedly connected with a sleeve, the outer walls of the left side and the right side of the sleeve are fixedly connected with a first chain wheel, the outer wall of the first chain wheel is movably connected with a chain, the inner wall of the chain is movably connected with a second chain wheel, and the center of the second chain wheel is fixedly connected with a resistance shaft;

the left end of the resistance shaft is fixedly connected with a driving wheel, the outer wall of the driving wheel is meshed with a driving wheel, the left side of the driving wheel is provided with an oblique tooth surface, the outer wall of the oblique tooth surface is meshed with a driven wheel, the inner wall of the driven wheel is meshed with a planet carrier, the inner wall of the planet carrier is fixedly connected with a fixed rod, and the fixed rod is fixedly connected to the outer wall of the output shaft;

the outer wall of the output shaft is fixedly connected with a limiting wheel, the outer wall of the limiting wheel is meshed with a ratchet wheel, and the ratchet wheel and the limiting wheel are both arranged inside the limiting box.

As a preferred technical scheme of the utility model, the equal swing joint in telescopic both ends has the primary shaft to hold, primary shaft holds fixed connection on the inside wall of transfer case.

As a preferred technical scheme of the utility model, the outer wall fixedly connected with mount of ring gear, the terminal fixedly connected with second bearing of mount, the second bearing sets up on telescopic outer wall.

As a preferred technical scheme of the utility model, the right-hand member of resistance axle still is provided with magnetic force resistance ware.

As an optimal technical scheme of the utility model, the left side from the driving wheel has still meshed the fixed wheel, fixed wheel fixed connection is on the outer wall of spacing case.

As a preferred technical scheme of the utility model, the center department of action wheel and fixed wheel all is provided with the third bearing, third bearing fixed connection is on the outer wall of output shaft.

As an optimal technical scheme of the utility model, the center department swing joint of ratchet has the axis of rotation, axis of rotation fixed connection is on the inner wall of spacing box.

(III) advantageous effects

Compared with the prior art, the utility model provides a speed change mechanism for automobile continuously variable transmission possesses following beneficial effect:

the speed change mechanism for the automobile continuously variable transmission has no neutral gear, the parking is dependent on the separation of the clutch, and the cooperation of a computer is not needed when the speed change mechanism is used, so that the speed change mechanism is more convenient and faster;

the speed change mechanism for the automobile continuously variable transmission has high speed change benefit, can generally reduce the speed of an engine by 3 to 10 times without too large volume, has high torsion strength, can be used for a truck, and can linearly increase the speed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

fig. 3 is a side view of a ring gear portion of the present invention.

In the figure: 1-transfer case, 2-input shaft, 3-driving wheel, 4-gear ring, 5-first planetary gear, 6-second planetary gear, 7-sun gear, 8-output shaft, 9-bracket, 10-fixed bracket, 11-first chain wheel, 12-chain, 13-second chain wheel, 14-resistance shaft, 15-magnetic force resistance device, 16-driving wheel, 17-driving wheel, 18-driven wheel, 19-planet carrier, 20-fixed rod, 21-fixed wheel, 22-limit box, 23-limit wheel, 24-ratchet wheel and 25-sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, a speed change mechanism for an automobile continuously variable transmission comprises a transfer case 1, an input shaft 2 is arranged inside the transfer case 1, a driving wheel 3 is fixedly connected to the outer wall of the input shaft 2, a gear ring 4 is meshed with the outer wall of the driving wheel 3, a first planetary gear 5 is meshed with the inner wall of the gear ring 4, a second planetary gear 6 is meshed with the outer wall of the first planetary gear 5, a central gear 7 is meshed with the outer wall of the second planetary gear 6, and an output shaft 8 is fixedly connected to the center of the central gear 7;

the centers of the first planetary gear 5 and the second planetary gear 6 are movably connected with a support 9, the outer wall of the support 9 is fixedly connected with a sleeve 25, the outer walls of the left side and the right side of the sleeve 25 are fixedly connected with a first chain wheel 11, the outer wall of the first chain wheel 11 is movably connected with a chain 12, the inner wall of the chain 12 is movably connected with a second chain wheel 13, and the center of the second chain wheel 13 is fixedly connected with a resistance shaft 14;

the left end of the resistance shaft 14 is fixedly connected with a driving wheel 16, the outer wall of the driving wheel 16 is meshed with a driving wheel 17, the left side of the driving wheel 17 is provided with an oblique tooth surface, the outer wall of the oblique tooth surface is meshed with a driven wheel 18, the inner wall of the driven wheel 18 is meshed with a planet carrier 19, the inner wall of the planet carrier 19 is fixedly connected with a fixed rod 20, and the fixed rod 20 is fixedly connected to the outer wall of the output shaft 8;

the outer wall of the output shaft 8 is also fixedly connected with a limiting wheel 23, the outer wall of the limiting wheel 23 is meshed with a ratchet wheel 24, and the ratchet wheel 24 and the limiting wheel 23 are both arranged inside the limiting box 22.

In this embodiment, the both ends of sleeve 25 all swing joint have first bearing, and first bearing fixed connection is on the inside wall of transfer case 1, and the position of holding sleeve 25 through first bearing makes sleeve 25's rotation more stable.

In this embodiment, the outer wall of the gear ring 4 is fixedly connected with the fixing frame 10, the end of the fixing frame 10 is fixedly connected with a second bearing, the second bearing is arranged on the outer wall of the sleeve 25, and the position of the fixing frame 10 is limited by the second bearing, so that the fixing frame 10 can rotate relative to the sleeve 25.

In this embodiment, the right-hand member of resistance axle 14 still is provided with magnetic force resistance ware 15, and magnetic force resistance ware 15 includes stator and rotor, promotes the not equidimension rotor that is close of stator, just can obtain the resistance of equidimension not.

In this embodiment, the left side of the driven wheel 18 is also engaged with a fixed wheel 21, and the fixed wheel 21 is fixedly connected to the outer wall of the limit box 22.

In this embodiment, the centers of the driving wheel 17 and the fixed wheel 21 are both provided with a third bearing, the third bearing is fixedly connected to the outer wall of the output shaft 8, and the rotation of the driving wheel 17 and the fixed wheel 21 does not affect the rotation of the output shaft 8.

In this embodiment, the center of the ratchet wheel 24 is movably connected with a rotating shaft, the rotating shaft is fixedly connected to the inner wall of the limiting box 22, and the position of the ratchet wheel 24 is fixed through the rotating shaft, so that the whole structure is more stable and reliable.

The utility model discloses a theory of operation and use flow:

the gear ring 4 of the transfer case 1 rotates, the planet carrier 19 and the central gear 7 of the transfer case 1 must have one rotation, the gear ring 4 rotates for one circle, the central gear 7 rotates for three circles, the planet carrier 19 rotates for 1.3 circles, obviously, the resistance of the central gear 7 is larger, the planet carrier 19 only idles, only the resistance is applied to the planet carrier 19 to ensure that the central gear 7 obtains power, but the process is equivalent to that the engine directly drives the vehicle body in a friction mode, the acceleration force also ensures that the vehicle body obtains great torsion, the torsion of the planet carrier 19 is required to be obtained by means of newly driving the central gear 7, the central gear 7 has the torsion of the planet carrier 19, but if the gears are simply connected in series, the transfer case 1 is just like a big gear, therefore, the series connection point of the planet carrier 19 and the central gear 7 must have two technical indexes, the 1 and the central gear 7 cannot transmit the power to the

planet carrier

19, 2. no matter how fast the sun gear 7 rotates, the planet carrier 19 can transmit power to the sun gear 7, which is a unidirectional torque transmission, and the actual operation obtained under such a framework is that resistance is applied to the planet carrier 19, the sun gear 7 can obtain acceleration force on the basis of torque, and the resistance is equal to the automobile running mode, the resistance is small, and the torque is large, whereas in actual operation, the speed of the automobile body is equal to the speed of the sun gear 7, so the faster the automobile speed is, the slower the planet carrier 19 is, and the overall understanding is that the torque is larger when the automobile speed is slower, and the torque is smaller when the automobile speed is faster. Therefore, the torque force is naturally exchanged according to the vehicle speed by the rotating speed, which is the principle of the power assembly, and the following are connection details:

the input shaft 2 drives the gear ring 4 to rotate by the driving wheel 3, so that speed reduction and large torque force are obtained, the gear ring 4 is meshed with and drives the first planetary gear 5, the first planetary gear 5 is meshed with and drives the second planetary gear 6, the second planetary gear 6 is meshed with and drives the central gear 7, and at the moment, interaction force exists between the second planetary gear 6 and the first planetary gear 5, and the second planetary gear 6 and the first planetary gear 5 are fixed on the bracket 9 and cannot be displaced;

when the rotating speeds of the input shaft 2 and the driving wheel 3 are low, the first planetary gear 5 and the second planetary gear 6 are pulled by the gear ring 4, and then the support 9 is driven to rotate, the support 9 rotates to drive the driving sleeve 25 to rotate, the sleeve 25 rotates to drive the second chain wheel 13 to rotate through the first chain wheel 11 and the chain 12, the second chain wheel 13 rotates to drive the resistance shaft 14 to rotate, the driving wheel 17 can be driven to rotate through the driving wheel 16 at the left end of the resistance shaft 14 when the resistance shaft 14 rotates, the driving wheel 17 rotates to drive the fixed rod 20 to rotate through the driven wheel 18 and the planet carrier 19, and the fixed rod 20 rotates to drive the output shaft 8 to rotate, so that the output shaft 8 can be driven to rotate;

when the rotation speed of the input shaft 2 and the driving wheel 3 is high, the gear ring 4 can directly drive the sun gear 7 to rotate through the first planetary gear 5 and the second planetary gear 6, and further drive the output shaft 8 to rotate;

the ratchet wheel 24 can limit the rotation direction of the limiting wheel 23 on the output shaft 8 and prevent the backward slip of the vehicle body caused by the reverse rotation of the limiting wheel;

the right end of the resistance shaft 14 is also provided with a magnetic resistance device 15, which can control the rotating speed of the resistance shaft 14 and further control the rotating speed of the output shaft 8.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A transmission mechanism for a continuously variable transmission of a motor vehicle, comprising a transfer case (1), characterized in that: an input shaft (2) is arranged inside the transfer case (1), the outer wall of the input shaft (2) is fixedly connected with a driving wheel (3), the outer wall of the driving wheel (3) is meshed with a gear ring (4), the inner wall of the gear ring (4) is meshed with a first planetary gear (5), the outer wall of the first planetary gear (5) is meshed with a second planetary gear (6), the outer wall of the second planetary gear (6) is meshed with a central gear (7), and an output shaft (8) is fixedly connected to the center of the central gear (7);

the center of each of the first planetary gear (5) and the second planetary gear (6) is movably connected with a support (9), the outer wall of the support (9) is fixedly connected with a sleeve (25), the outer walls of the left side and the right side of the sleeve (25) are fixedly connected with a first chain wheel (11), the outer wall of the first chain wheel (11) is movably connected with a chain (12), the inner wall of the chain (12) is movably connected with a second chain wheel (13), and the center of the second chain wheel (13) is fixedly connected with a resistance shaft (14);

the left end of the resistance shaft (14) is fixedly connected with a driving wheel (16), the outer wall of the driving wheel (16) is meshed with a driving wheel (17), the left side of the driving wheel (17) is provided with an oblique tooth surface, the outer wall of the oblique tooth surface is meshed with a driven wheel (18), the inner wall of the driven wheel (18) is meshed with a planet carrier (19), the inner wall of the planet carrier (19) is fixedly connected with a fixed rod (20), and the fixed rod (20) is fixedly connected to the outer wall of the output shaft (8);

the outer wall of the output shaft (8) is further fixedly connected with a limiting wheel (23), the outer wall of the limiting wheel (23) is meshed with a ratchet wheel (24), and the ratchet wheel (24) and the limiting wheel (23) are arranged inside a limiting box (22).

2. A transmission mechanism for a continuously variable transmission of a vehicle according to claim 1, wherein: both ends of sleeve (25) all swing joint have first bearing, first bearing fixed connection is on the inside wall of transfer case (1).

3. A transmission mechanism for a continuously variable transmission of a vehicle according to claim 1, wherein: the outer wall fixedly connected with mount (10) of ring gear (4), the terminal fixedly connected with second bearing of mount (10), the second bearing sets up on the outer wall of sleeve (25).

4. A transmission mechanism for a continuously variable transmission of a vehicle according to claim 1, wherein: the right end of the resistance shaft (14) is also provided with a magnetic force resistance device (15).

5. A transmission mechanism for a continuously variable transmission of a vehicle according to claim 1, wherein: the left side of the driven wheel (18) is also meshed with a fixed wheel (21), and the fixed wheel (21) is fixedly connected to the outer wall of the limiting box (22).

6. A transmission mechanism for a continuously variable transmission of a vehicle according to claim 5, wherein: the centers of the driving wheel (17) and the fixed wheel (21) are provided with third bearings, and the third bearings are fixedly connected to the outer wall of the output shaft (8).

7. A transmission mechanism for a continuously variable transmission of a vehicle according to claim 1, wherein: the center of the ratchet wheel (24) is movably connected with a rotating shaft, and the rotating shaft is fixedly connected to the inner wall of the limiting box (22).