CN106585371B

CN106585371B - Multi-motor serial stepless speed change box

Info

Publication number: CN106585371B
Application number: CN201710022181.1A
Authority: CN
Inventors: 刘身谦
Original assignee: Shenzhen World Wide New Energy Technology Co ltd
Current assignee: Shenzhen World Wide New Energy Technology Co ltd
Priority date: 2016-08-15
Filing date: 2017-01-12
Publication date: 2023-07-04
Anticipated expiration: 2037-01-12
Also published as: CN106585371A

Abstract

The invention discloses a multi-motor serial stepless gearbox, which is characterized in that: the device comprises a base, an upper cover plate and an outer shield, wherein the base and the cover plate are respectively arranged at two ends of the outer shield to form a containing cavity, an output shaft serving as an output end is arranged on the upper cover plate, and a main shaft rotating system for driving the output shaft and at least two collateral planetary driving systems are arranged in the containing cavity; the gear box adopts a planetary structure, the teeth of an outer ring structure and a coaxial bearing are added, the force and the speed of a central motor and the power and the speed of an off-set motor are coupled on a shaft through a special structure, then the multiple motors can be separated and independently operated without separating the teeth, and the motors can be smoothly combined to operate.

Description

Multi-motor serial stepless speed change box

Technical Field

The invention relates to a gearbox, in particular to a multi-motor serial stepless gearbox.

Background

The most central technology of the electric automobile is battery technology and engine technology, but the hardware development of a gearbox is ignored, and a certain university can often look on the internet what novel battery materials are invented, and the novel battery materials are several times as large as the current battery capacity (of course, the novel battery materials are far away from the true mass production), and I never see that the certain university is used for manufacturing novel engines, and the key of the engine is the gearbox. The quality of the engine gearbox determines the performance problem of the automobile.

Compared with the prior art, the invention has the advantages that:

1. the technology of the gearbox of the automobile/diesel vehicle is mature, the gearbox is high in speed and strong, but the low-speed oil is wasted, the engine is complex to manufacture, and the new energy requirement is not met;

2. at present, the pure electric vehicle has the defects that the engine technology is not mature enough, the vehicle with a gearbox is too expensive, the cruising is not feasible, and the noise of the gearbox in low gear is too large; the motor is powerful at low speed, the motor is not powerful at high speed, the technical energy waste of the common electric vehicle is more, and a large battery pack is needed, so that the popularization requirement cannot be met;

3. hybrid power, low-speed power, high-speed oil and better combination, but gear shifting has a feel of setback, and a vehicle two-set control system is too high in cost and difficult to popularize.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provide the energy-saving gearbox which solves the speed change problem and can realize a plurality of speed change modes, has low manufacturing cost, complex and simple structure and small volume.

In order to achieve the above purpose, the multi-motor serial stepless speed changing box designed by the invention is characterized in that: the device comprises a base, an upper cover plate and an outer shield, wherein the base and the upper cover plate are respectively arranged at two ends of the outer shield to form a containing cavity, an output shaft serving as an output end is arranged on the upper cover plate, and a main shaft rotating system for driving the output shaft and at least two paralytic planetary driving systems are arranged in the containing cavity;

the main shaft rotating system comprises a lower planet carrier coaxially arranged, an upper planet carrier fixedly provided with the output shaft, a first sun gear positioned below the lower planet carrier, and a second sun gear arranged at the upper end of the lower planet carrier, wherein the lower end of the first sun gear is provided with a rotating shaft which is arranged in an inner cavity of the base, the bystander planetary driving system comprises an upper bystander planetary system and a lower bystander planetary system, the lower bystander planetary system comprises a first sun gear ring gear which is arranged at the lower edge of the lower planet carrier and is meshed with the first sun gear, a lower inner gear ring which is used for being meshed with an outer ring gear of the first sun gear ring and is provided with outer teeth, and a first motor shaft which is meshed with the outer edge of the lower inner gear ring, an outer gear ring flange is arranged between the upper planet carrier and an upper cover plate, a bearing is arranged at the middle end of the outer gear ring flange, the bearing is fixedly connected with the output rotating bearing is arranged on the upper cover plate, and the lower end face of the outer gear ring flange sleeve is sleeved on the output rotating bearing, and the first motor shaft is fixed on the base.

Further, the upper paralytic planetary system comprises a second sun gear ring which is arranged at the edge end of the upper planet carrier and is meshed with the second sun gear, an upper inner gear ring which is meshed with the second sun gear ring and is provided with an outer gear ring, and a second motor shaft which is meshed with the outer gear ring, wherein the second motor shaft is arranged on the base.

Further, a motor base for installing a motor is arranged below the base, the motor base comprises a main motor for driving the main shaft rotating system and a collateral motor for driving the collateral planetary driving system to operate, at least two collateral motors are arranged, and each collateral motor is correspondingly provided with one collateral planetary driving system

Further, the output shaft and the upper planet carrier are integrally formed.

Further, the lower ends of the upper planet carrier and the lower planet carrier are respectively provided with an upper planet carrier fixing rod and a lower planet carrier fixing rod which are integrally formed, and the upper planet carrier fixing rod and the lower planet carrier fixing rod are respectively sleeved with a first sun gear ring and a second sun gear ring.

Further, an outer ring gear flange with a bearing is also arranged between the lower planet carrier and the base and between the lower planet carrier and the upper planet carrier.

The invention obtains a multi-motor serial stepless speed changing box, the speed changing main box adopts a planetary structure, an outer ring structure tooth and a coaxial bearing are added, the force and the speed of a central motor and the force and the speed of an off-axis motor are coupled on a shaft through a special structure, and then the multi-stage motor are coupled together layer by layer, the special structure ensures that the tooth phase can separate and independently work the two motors without separation, and the two motors can also work in a smooth and seamless combined mode.

The motor installation design mode comprises side-by-side installation, and can also be assembled into triangle, spiral, concentric opposite installation and the like according to the change of the installation size of the automobile; designing a combined gear box with 2 motors, 3 motors, 4 motors, 5 motors or more according to the requirements of the vehicle type; the control software can be matched to realize clockwise one-by-one control, anticlockwise one-by-one control, middle to two sections or two sections to middle and the like, and the racing mode, the economic mode, the comfort mode and the intelligent mode can be switched according to different characteristic codes.

Drawings

FIG. 1 is an exploded view of the present product

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 1 with the outer shroud removed;

FIG. 4 is a schematic view of the internal structure of FIG. 2;

FIG. 5 is a schematic view of the structure of the lower carrier;

FIG. 6 is a schematic structural view of an upper carrier;

fig. 7 is a schematic view of the structure of the outer ring flange.

Description of the embodiments

The invention will be further described with reference to the drawings and examples.

Examples

As shown in fig. 1 to 7, the multi-motor serial stepless gearbox provided by the invention comprises a base 1, an upper cover plate 11 and an outer shield 10, wherein the base 1 and the upper cover plate 11 are respectively arranged at two ends of the outer shield 10 to form a containing cavity, an output shaft 2 serving as an output end is arranged on the upper cover plate 11, and a main shaft rotating system for driving the output shaft and a plurality of paralytic motor planetary driving systems are arranged in the containing cavity; the main shaft rotating system comprises a lower planet carrier 13 coaxially arranged, an upper planet carrier 14 fixed with the output shaft, a first sun gear 3 positioned below the lower planet carrier, and a second sun gear 4 arranged at the upper end of the lower planet carrier, wherein the lower end of the first sun gear 3 is provided with a rotating shaft which is arranged in an inner cavity of the base 1 and driven by a main motor, the bystander planetary driving system comprises an upper bystander planetary system and a lower bystander planetary system, the lower bystander planetary system comprises a first sun gear ring 41 which is arranged at the lower edge end of the lower planet carrier and is mutually meshed with the first sun gear, a lower inner gear ring 5 which is mutually meshed with the outer ring of the first sun gear ring 41, and a first motor shaft 7 which is mutually meshed with the lower inner gear ring 5, the first motor shaft 7 is provided with a first bearing 71 and a first gear 72 which are arranged on an upper cover plate, the outer surface end of the lower inner gear ring 5 is also provided with an outer gear 51 meshed with the first gear 72, an outer gear ring flange 12 with bearings is arranged between the lower planet carrier and a base, between the lower planet carrier and an upper planet carrier and between the upper planet carrier and the upper cover plate, the lower outer gear ring is arranged between the outer gear ring flange and the lower planet carrier, and the first motor shaft 7 is fixed on the base. The upper paralytic planetary system includes a second sun gear ring mounted at the side end of the upper planet carrier 14 to intermesh with the second sun gear, an upper ring gear 6 with an outer gear 61 to intermesh with the second sun gear ring, and a second motor shaft 8 to intermesh with the outer gear 61, the second motor shaft 8 including a second bearing 82 mounted at the upper cover plate, a second gear 81 to intermesh with the upper ring gear 6, the second motor shaft being mounted on the base. The outer ring gear flange 12 with bearings is arranged between the lower planet carrier and the base, between the lower planet carrier and the upper planet carrier and between the upper planet carrier and the upper cover plate in the name of the outer ring gear flange seat 12 in fig. 7, which is one of key design technologies, wherein the outer ring gear flange 12 between the upper planet carrier and the upper cover plate is used for fixing the upper inner ring gear 6 and the lower outer ring gear 5 on a concentric circle, so that the sun gear and the outer ring gear can apply force and speed to the planet carrier; each housing is fitted with an inner and outer bearing 120, and each motor has a pair of outer ring gear flange housings. The outer diameter of the outer gear ring flange 120 is sleeved on the explosion output rotary bearing 9, and the output rotary bearing 9 is sleeved in the upper cover plate 11.

In order to enhance the firmness and practicability, further, the lower ends of the upper planet carrier 14 and the lower planet carrier 13 are respectively provided with an upper planet carrier fixing rod 140 and a lower planet carrier fixing rod 130 which are integrally formed, and the upper planet carrier fixing rod 140 and the lower planet carrier 130 are respectively sleeved with a first sun gear ring 41 and a second sun gear ring.

The motor seat that is used for installing the motor is provided with to the below of base, and the motor seat is including the main motor of drive main shaft rotational system, the paralytic motor of drive paralytic planetary drive system operation, and this paralytic motor is equipped with not less than two, and every paralytic motor all corresponds and is provided with a paralytic planetary drive system, in order to provide the rate of accuracy, output shaft and last planet carrier integrated into one piece.

The gearbox technology has the following characteristics:

1. the structure is simple and reliable, the automatic large-scale manufacturing can be realized, the manufacturing cost is low, and the battery pack can be saved by about half in the same path, thereby being super-economical;

2. the maintenance cost is low, the structural design is reasonable, the battery can be used separately, the overall service life is longer, most parts are universal, and the time is saved;

3. the problem of gear shifting is solved, and the novel technology solves the problem of linear acceleration of speed change, low speed, medium speed and high speed; the structure is simple and reliable, and the method is ultra-simple;

4. compared with the existing problem of high mechanical energy loss, the scheme has the advantages of energy conservation and speed; the environment is protected, the electricity is saved, the volume is small, the weight is light, and the energy is saved;

5. the control of multiple driving modes is complex, the new technology changes software debugging, the previous complex control can be realized, the range of the adjustable torsion of the engine is large, the self loss is less, the maintenance is convenient, and the method is ultra-simple;

6. the installation volume is small; the universality is high, and the automobile gear shifting control system can be matched with most of the current automobile specifications, realize stepless gear shifting and linear acceleration control and exceed the standard;

7. while the invention has been shown and described with reference to a preferred embodiment, it is particularly well suited to the field of new energy automotive industry, and various changes in form and detail may be made, and the invention may be applied to the collection of numerous small energy integration to large torque output, such as multi-stage small wind power integration, multi-stage small hydropower integration, and the like.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that it is not limited to the description of the embodiment but is capable of various changes in form and details within the scope of the appended claims.

Claims

1. The utility model provides a multistage motor series connection continuously variable transmission which characterized in that: the device comprises a base, an upper cover plate and an outer shield, wherein the base and the upper cover plate are respectively arranged at two ends of the outer shield to form a containing cavity, an output shaft serving as an output end is arranged on the upper cover plate, and a main shaft rotating system for driving the output shaft and at least one paralytic planetary driving system are arranged in the containing cavity;

the main shaft rotating system comprises a lower planet carrier coaxially arranged, an upper planet carrier fixedly provided with the output shaft, a first sun gear positioned below the lower planet carrier, and a second sun gear arranged at the upper end of the lower planet carrier, wherein the lower end of the first sun gear is provided with a rotating shaft which is arranged in an inner cavity of the base;

the upper paralytic planetary system comprises a second sun gear ring which is arranged at the edge end of the upper planet carrier and is meshed with the second sun gear, an upper inner gear ring which is meshed with the second sun gear ring and is provided with an outer gear ring, and a second motor shaft which is meshed with the outer gear ring, wherein the second motor shaft is arranged on the base.

2. A multi-motor tandem continuously variable transmission as claimed in claim 1, wherein: the motor seat is arranged below the base and comprises a main motor for driving a main shaft rotating system and collateral motors for driving a collateral planetary driving system to operate, at least two collateral motors are arranged on the collateral motors, and each collateral motor is correspondingly provided with one collateral planetary driving system.

3. A multi-motor tandem continuously variable transmission as claimed in claim 2, wherein: the output shaft and the upper planet carrier are integrally formed.

4. A multi-motor tandem continuously variable transmission as claimed in claim 3, wherein: the lower ends of the upper planet carrier and the lower planet carrier are respectively provided with an upper planet carrier fixing rod and a lower planet carrier fixing rod which are integrally formed, and the upper planet carrier fixing rod and the lower planet carrier fixing rod are respectively sleeved with a first sun gear ring and a second sun gear ring.

5. A multi-motor tandem continuously variable transmission as claimed in claim 3, wherein: an outer gear ring flange with a bearing is also arranged between the lower planet carrier and the base and between the lower planet carrier and the upper planet carrier.