Connecting method for double-differential gear train transmission device with reversing mechanism and second power

Abstract

The invention relates to a method for connecting a double-differential gear train transmission device with a reversing mechanism with second power, belongs to the technical field of power transmission and energy conservation, and provides a method for connecting the second power with a double-rotor motor, rotating power and a stator motor with the double-differential gear train transmission device with the reversing mechanism. After the double-differential gear train transmission device with the reversing mechanism obtains power input of the first power and the second power, the output torque of the first power supply device is mainly used, the output rotating speed of the second power supply device is mainly used, and therefore the output power of the transmission device can be larger than the input total power. According to the invention, when the transmission device is applied to a specific product, the second power connection and installation are possible to obtain more reasonable and more optimized, meanwhile, the structure that the transmission device and the power are used as a whole can become simpler and more compact, and different transmission ratios of the transmission device can be combined, so that the possibility is provided for further improving the efficiency of the transmission device.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of power transmission and energy saving, and relates to a connection method of a second power and a double differential gear train transmission device with a reversing mechanism, which can make the torque output of the transmission device mainly provided by the output torque of the first power, the rotation speed output of the transmission device mainly provided by the output rotation speed of the second power, so that the output power of the transmission device is greater than the total input power. BACKGROUND

[0002] Chinese patent application No. CN202411045616.0 discloses a stepless speed change device composed of a differential gear train and a double rotor motor and a matching connection method. In the technical solution, it is clear that the transmission device composed of a double differential gear train and a reversing mechanism can realize that the output rotation speed of the transmission device is irrelevant or slightly relevant to the first power input rotation speed, the output torque of the transmission device is slightly relevant to the second power input torque and greatly relevant to the first power input torque, so that the torque output of the transmission device is mainly provided by the output torque of the first power, the rotation speed output of the transmission device is mainly provided by the output rotation speed of the second power, and finally the output power of the transmission device is greater than the total input power. In the technical solution, the outer rotor and the inner rotor of the double rotor motor are connected to the input differential gear train B point and C point or A point and C point, respectively, which are only two special cases in the connection method of the second power and the double differential gear train with a reversing mechanism, and do not have comprehensiveness, systematicness and universality. Moreover, when the second power and the double differential gear train with a reversing mechanism are connected to form a whole, the overall structure is complex and redundant. Therefore, it is necessary to comprehensively and systematically study the connection method of the second power and the double differential gear train with a reversing mechanism in addition to the existing connection method, so as to make the connection structure between the transmission device and the first power and the second power simpler and more compact, and provide a basis for further improving the efficiency of the transmission device. SUMMARY

[0003] The purpose of the present application is to overcome the deficiencies in the background art, and to provide a comprehensive and universal connection method of a double differential gear train transmission device with a reversing mechanism and a second power, so that the torque output of the transmission device is mainly provided by the first power, and the rotation speed output is mainly provided by the second power. By optimizing the connection method, the output power is greater than the total input power. According to the specific application scene, a more reasonable and optimized second power connection and installation scheme can be provided, and the structure of the transmission device is simpler and more compact, which provides the possibility for further improving the transmission efficiency of the device.

[0004] The connection method of the double differential gear train transmission device with a reversing mechanism and the second power provided in the present application adopts the following technical solution: The application relates to a connecting method of a belt reversing mechanism double-differential wheel system transmission device and a second power, wherein the belt reversing mechanism double-differential wheel system transmission device is composed of an input end differential wheel system, an output end differential wheel system and a reversing mechanism; two groups of motion assemblies with non-minimal torque transmission capacity of the input end differential wheel system are connected with two groups of motion assemblies with non-maximal torque transmission capacity of the output end differential wheel system in double pairs, one group of which forms a power transmission chain I through the reversing mechanism, and the other group forms a power transmission chain II without reversing; the motion assembly with minimal torque transmission capacity of the input end differential wheel system is connected with a first power; and the motion assembly with maximal torque transmission capacity of the output end differential wheel system is connected with a load; the connecting method is characterized in that a rotation center line of the transmission device is set as an O point; the motion assembly with minimal torque transmission capacity, the motion assembly with maximal torque transmission capacity and the motion assembly with non-minimal maximal torque transmission capacity of three groups of non-planetary wheel motion assemblies in the input end differential wheel system are respectively connected with planetary gears at A point, B point and C point; the motion assembly with maximal torque transmission capacity of three groups of non-planetary wheel motion assemblies in the output end differential wheel system is connected with a planetary gear at E point; and the two groups of motion assemblies with non-maximal torque transmission capacity are respectively connected with planetary gears at D point and F point; and the connecting method of the transmission device and the second power is as follows: (1) the first connecting method: the outer rotor and the inner rotor of the second power, i.e. a double-rotor motor, are respectively connected with the motion assemblies corresponding to any two points on a line and its extension line of the projection of A point, B point, C point and O point on a vertical plane of the rotation center line of the transmission device except B point and C point and A point and C point, or the outer rotor and the inner rotor of the double-rotor motor are respectively connected with the motion assemblies corresponding to any two points on a line and its extension line of the projection of D point, E point and F point and O point on a vertical plane of the rotation center line of the transmission device; (2) the second connecting method: the second power, i.e. a rotating power, is connected with the motion assemblies corresponding to any point on a line and its extension line of the projection of A point, B point, C point and O point on a vertical plane of the rotation center line of the transmission device or on a line and its extension line of the projection of D point, E point and F point and O point on a vertical plane of the rotation center line of the transmission device except A point and E point; (3) the third connecting method: the second power, i.e. a relative stator motor, is taken as the second power input of the transmission device; the relative stator of the relative stator motor is fixed on a planetary carrier at B point or E point; and the rotor of the relative stator motor is installed on a planetary gear and rotates together with the planetary gear.

[0005] By adopting the above technical scheme, it is assumed that the points of A point, B point, C point, D point, E point, F point and O point are used for more directly and intuitively describing the principles and purposes of the application and making the application more comprehensive and universal.

[0006] The problem to be solved by the first type of connection method is to transmit the input rotational speed and the input torque of the same size and opposite direction of the outer rotor and the inner rotor of the double rotor motor to the power transmission chain one and the power transmission chain two through the corresponding motion components of the two points connected, while avoiding the case that the outer rotor and the inner rotor of the double rotor motor are connected with B point C point and A point C point respectively in the prior art.

[0007] The problem to be solved by the second type of connection method is to transmit the rotational speed and the torque of the rotational power input to the power transmission chain one or the power transmission chain two through the corresponding motion components of any point connected.

[0008] The problem to be solved by the third type of connection method is to transmit the rotational speed and the torque of the second power input by the relative stator motor with the B point planetary carrier as the relative stator and the planetary gear as the rotor to the power transmission chain one and the power transmission chain two through the relative stator and the planetary gear respectively, or to transmit the rotational speed and the torque of the second power input by the relative stator motor with the E point planetary carrier as the relative stator and the planetary gear as the rotor to one of the corresponding motion components of the E point and the power transmission chain one or the power transmission chain two through the relative stator.

[0009] Further, the specific method for the direction of the second power input torque in the first type of connection method is: When the outer rotor and the inner rotor of the double rotor motor are connected with the corresponding motion components of any two points on the line and its extension of the projection of A point, B point, C point and O point on the vertical plane of the rotation center line of the transmission device except B point C point and A point C point, the torque directions transmitted by the inner and outer rotors to the power transmission chain one and the power transmission chain two respectively make the torque of the second power transmitted to the power transmission chain one and the power transmission chain two in a superposition state rather than a cancellation state with the torque of the first power transmitted to the power transmission chain one and the power transmission chain two. When the outer rotor and the inner rotor of the double rotor motor are connected with the corresponding motion components of any two points on the line and its extension of the projection of D point, E point, F point and O point on the vertical plane of the rotation center line of the transmission device, the torque directions input by the outer rotor and the inner rotor of the double rotor motor are required to make the torque transmitted by the power transmission chain one and the power transmission chain two and the load resistance torque tend to be balanced and be able to be balanced.

[0010] By adopting the technical scheme, when the motion assembly corresponding to any two points on the line and its extension line on the projection of the connection of the outer rotor and the inner rotor of the double-rotor motor on the vertical plane of the rotation center line of the transmission device except the B point and the C point and the A point and the C point is adopted, the torque output of the transmission device is increased, so that the device can be in the output state of the first power providing higher output torque and the second power providing higher output rotation speed; when the motion assembly corresponding to any two points on the line and its extension line on the projection of the connection of the outer rotor and the inner rotor of the double-rotor motor on the vertical plane of the rotation center line of the transmission device is adopted, because the second power provides the rotation speed output of the transmission device entirely or mainly, the torque direction input by the outer rotor and the inner rotor of the double-rotor motor makes the torque transmitted by the power transmission chain one and the power transmission chain two and the load resistance torque be in the state of being able to reach balance but not reaching balance, and at the same time, the transmission device has relatively higher rotation speed output, the device can be in the output state of the first power providing higher output torque and the second power providing higher output rotation speed.

[0011] Further, the specific method for the second power input torque direction in the third type of connection method is: The torque direction of the rotary power input requires that the torque transmitted by the power transmission chain one and the power transmission chain two and the load resistance torque tend to reach balance and can reach balance.

[0012] By adopting the technical scheme, because the second power provides the rotation speed output of the transmission device entirely or mainly, when the torque direction of the rotary power input requires that the torque transmitted by the power transmission chain one and the power transmission chain two and the load resistance torque be in the state of being able to reach balance but not reaching balance, and at the same time, the transmission device has relatively higher rotation speed output, the device can be in the output state of the first power providing higher output torque and the second power providing higher output rotation speed.

[0013] Further, the rotary power refers to the power of output rotation speed and torque.

[0014] By adopting the technical scheme, the power of the rotary power input is also the rotation speed and torque, so that the rotation speed and torque of the rotary power input can act on the power transmission chain one and the power transmission chain two, and the rotation speed and torque of the first power acting on the power transmission chain one and the power transmission chain two can form superposition or cancellation on the power transmission chain one and the power transmission chain two.

[0015] Further, the specific method for the second power input torque direction in the third type of connection method is: The second power, the relative stator motor, takes the B-point planet carrier as a relative stator and takes the planet wheel as a rotor, and the torque direction of the relative stator motor is transmitted to the power transmission chain 1 and the power transmission chain 2 through the relative rotor and the planet wheel, so that the torque of the second power transmitted to the power transmission chain 1 and the power transmission chain 2 is in a superposition state rather than a cancellation state with the torque of the first power transmitted to the power transmission chain 1 and the power transmission chain 2. The second power, the relative stator motor, takes the E-point planet carrier as a relative stator and takes the planet wheel as a rotor, and the torque direction of the relative stator motor is transmitted to the power transmission chain 1 and the power transmission chain 2, so that the torque of the power transmission chain 1 and the power transmission chain 2 tends to be balanced with the load resistance torque.

[0016] By adopting the above technical scheme, the torque output of the transmission device is increased when the B-point planet carrier is taken as a relative stator, so that the device can be in an output state in which the first power provides a higher output torque and the second power provides a higher output speed; when the E-point planet carrier is taken as a relative stator, the torque of the power transmission chain 1 and the power transmission chain 2 is in a balanced state but not in a balanced state with the load resistance torque, and at the same time, the device has a relatively high speed output, the transmission device can be in an output state in which the first power provides a higher output torque and the second power provides a higher output speed.

[0017] Further, the relative stator motor refers to a motor in which a rotor rotates around a stator, and specifically, the stator is fixed on the planet carrier and revolves with the planet carrier, and the rotor rotates around the stator.

[0018] By adopting the above technical scheme, the stator is fixed on the planet carrier, and the rotor rotates around the stator, forming an input effect similar to a double-rotor motor, and enabling the second power to be combined with the transmission device after the second power, so that the structure is more compact.

[0019] In summary, the present application has the following beneficial technical effects: (1) The connection method of the present application is a comprehensive and universal connection scheme compared with the prior art, has infinite diversity, and enables the position of the second power on the transmission device and the installation on specific application scenarios and specific products to have more optimized selection.

[0020] (2) The second power second connection method of the present application enables the structure to be simpler when the transmission device and the second power form a whole; the second power third connection method of the present application enables the structure to be more compact when the transmission device and the second power form a whole, and facilitates integration with other power systems.

[0021] (3) The second power in the present application has innumerable connection forms, can combine various transmission ratios of the differential gear train of the transmission device, and provides a possibility for further research to improve the efficiency of the transmission device.

[0022] (4) The output torque of the application is mainly the first power, the rotation speed is mainly the second power, certain decoupling output characteristics are formed, the power and the torque output are optimized, and the limitation of the traditional transmission mode is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structural schematic diagram of the first connection method in the application.

[0024] Figure 2 The structural schematic diagram of the second connection method in the application.

[0025] Figure 3 The structural schematic diagram of the third connection method in the application.

[0026] In the figure: input differential gear train 1, reversing mechanism 2, input differential gear train 3, first power 4, load 5, power transmission chain one 6, power transmission chain two 7, second power - double-rotor motor 8-1, second power - rotary power 8-2, second power - relative stator motor 8-3. DETAILED DESCRIPTION

[0027] The application will be further illustrated by the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the application and are not used to limit the scope of the application. After reading the application, those skilled in the art can modify various equivalent forms of the application, which all fall within the scope defined by the appended claims.

[0028] As Figure 1As shown, the transmission device consists of an input differential gear train 1, a reversing mechanism 2, and an input differential gear train 3. Point O is the rotation center line of the transmission device. In the input differential gear train 1, points A, B, and C are the connection points between the minimum torque transmission capacity motion component—the center gear assembly, the maximum torque transmission capacity motion component—the planetary carrier assembly, and the non-maximum minimum torque transmission capacity motion component—the gear ring assembly—and the planetary gears, respectively. The torque transmission capacity ratio of the motion components corresponding to points A, B, and C is 1:5:4. In the output differential gear train 3, point E is the connection point between the maximum torque transmission capacity motion component—the planetary carrier assembly—and the planetary gears. Points E and F are the connection points between the two sets of non-maximum torque transmission capacity motion components—the gear ring assembly and the center gear assembly—and the planetary gears, respectively. The torque transmission capacity ratio of the motion components corresponding to points D, E, and F is 1:2:1. The reversing transmission ratio of the reversing mechanism 2 is 1:1. The first power source 4 is connected to the motion component with the smallest torque transmission capacity in the input differential gear train 1—the center wheel assembly, i.e., the motion component corresponding to point A. The load 5 is connected to the motion component with the largest torque transmission capacity in the output differential gear train 3—the planetary carrier assembly, i.e., the motion component corresponding to point E. The motion component corresponding to point C is connected to the motion component corresponding to point D through the reversing mechanism 2 to form the first power transmission chain 6. The motion component corresponding to point B is connected to the motion component corresponding to point F to form the second power transmission chain 7.

[0029] Example 1 The outer rotor of the second power source—the dual-rotor motor 8-1 (hereinafter referred to as the dual-rotor motor 8-1)—is connected to the motion component with the maximum torque transmission capability in the input differential gear train 1—the planetary carrier assembly, i.e., the motion component corresponding to point B. The inner rotor of the dual-rotor motor 8-1 is connected to the motion component with the minimum torque transmission capability in the input differential gear train 1—the center wheel assembly, i.e., the motion component corresponding to point A.

[0030] To more simply explain the working principle of this embodiment, the rotational speed at point A represents the rotational speed of the moving component corresponding to point A, and the torque at point A represents the torque of the moving component corresponding to point A; the descriptions of points B, C, D, E, and F are the same as those of point A.

[0031] like Figure 1As shown, if the first power source 4 is input with 1 times the positive speed and 1 times the positive torque at point A, a maximum of 5 times the positive torque will be generated at point B, and a maximum of 4 times the negative torque will be generated at point C. The maximum 5 times the positive torque at point B is transmitted to point F through power transmission chain 2 7, and the negative torque at point C is transmitted to point D as 4 times the positive torque through power transmission chain 1 6. Further, if the dual rotor motor 8-1 is input with 0.2 times the electromagnetic torque and 4 times the speed difference between the inner and outer rotors, when the dual rotor motor 8-1 is powered, the electromagnetic torque transmitted by the inner and outer rotors is equal in magnitude and opposite in direction. Then, the inner rotor acts as a positive electromagnetic torque at point A and a negative electromagnetic torque at point B. According to the torque action law of differential gear train, the torque of the dual rotor motor 8-1 acting at point B is 0. 2 × 5 - 0.2 = 0.8 times the positive torque. The torque acting at point C is 0.2 × 4 = 0.8 times the negative torque. That is, the torque transmitted from the dual rotor motor 8-1 to point F through power transmission chain 2 7 is 0.8 times the positive torque, and the torque transmitted to point D through power transmission chain 2 6 after reversal is also 0.8 times the positive torque. This is superimposed on the torque transmitted from the first power to points F and D. After the first and second power are superimposed, the maximum torque transmitted at points F and D is 5.8 times the positive torque and 4.8 times the positive torque, respectively. According to the torque action law of differential gear train, since the torque transmission capacity ratio of the moving components corresponding to points D, E, and F is 1:2:1, the maximum driving torque at point E, which is the maximum output torque of the transmission device, is 9.6 times the positive torque. Meanwhile, according to the speed law of the transmission device in this embodiment, the output speed at point E is not related to the input speed of the first power 4, but only to the absolute speed difference between points B and C, which is determined by the speed difference between the inner and outer rotors of the dual rotor motor 8-1. In this embodiment, the inner rotor of the dual rotor motor 8-1 is fixedly connected to the first power 4 at a positive speed of 1. Since the speed difference between the inner and outer rotors is 4 times, the speed at point B is 3 times the negative speed. According to the speed law of the differential gear train and the structure of the transmission device in this embodiment, it can be further concluded that the speed at point C is 4 times the negative speed, the speed at point D is 4 times the positive speed, and the speed at point F is 3 times the negative speed. Finally, it can be concluded that the output speed of point E, i.e., the transmission device, is 0.5 times the speed.

[0032] In summary, the total input power of the transmission device is: the first power input power (1 times the speed × 1 times the torque = 1 times the power) plus the second power input power (4 times the difference in speed between the inner and outer rotors × 0.2 times the electromagnetic torque = 0.8 times the power), totaling 1.8 times the power. The maximum permissible output power of the transmission device is: the maximum permissible output torque is 9.6 times × the output speed in the positive direction is 0.5 times, which equals 4.8 times the maximum permissible output power. The maximum permissible output power of the transmission device is greater than the total input power.

[0033] Example 2 like Figure 2As shown, the difference between this embodiment and the above embodiment 1 is that the second power source—rotary power source 8-2 (hereinafter referred to as rotary power source 8-2)—replaces the dual rotor motor 8-1 and is connected to point C of the input differential gear train.

[0034] like Figure 2 As shown, if the first power 4 is input with 1 times the positive speed and 1 times the positive torque at point A, a maximum of 5 times the positive torque will be generated at point B, and a maximum of 4 times the negative torque will be generated at point C. The maximum 5 times the positive torque at point B is transmitted to point F through power transmission chain 2 7, and the negative torque at point C is transmitted to point D through power transmission chain 1 6, becoming a maximum of 4 times the positive torque. Further, if the rotating power 8-2 is input with 0.2 times the negative torque and 4 times the negative speed, according to the torque action law of differential gear trains, the torque of the rotating power 8-2 acting on point B is 0. That is, the torque of the rotating power 8-2 transmitted to point F through power transmission chain 2 7 is... 0. The torque transmitted from point C to point D via power transmission chain 26 after reversal is 0.2 times the positive torque. After the first and second power forces are superimposed, the maximum torques transmitted at points F and D are 5 times the positive torque and 4.2 times the positive torque, respectively. (If the rotating power 8-2 inputs 1 times the negative torque, then the maximum torques transmitted at points F and D after the first and second power forces are superimposed are 5 times the positive torque and 5 times the negative torque, respectively. Since the transmission capacity ratio of the moving components corresponding to points D, E, and F is 1:2:1, it will be balanced with the load resistance torque transmitted from point E. However, the input of 0.2 times the negative torque by the rotating power 8-2 does not achieve balance). According to the torque action law of differential gear trains, since the transmission capacity ratio of the moving components corresponding to points D, E, and F is 1:2:1, the maximum driving torque at point E, i.e., the maximum output torque of the transmission device, is 8.4 times the positive torque. Meanwhile, according to the speed law of the transmission device in this embodiment, the output speed at point E is not related to the input speed of the first power 4, but only to the absolute speed difference between points B and C determined by the input speed of the rotating power 8-2. In this embodiment, the input speed of the rotating power 8-2 is 4 times negative. According to the speed law of the differential gear train and the structure of the transmission device in this embodiment, it can be further concluded that the speed at point C is 4 times negative, the speed at point D is 4 times positive, and the speed at point F is 3 times negative. Finally, it can be concluded that the output speed at point E, i.e., the transmission device, is 0.5 times positive.

[0035] In summary, the total input power of the transmission device is: the first power input power (1 times the speed × 1 times the torque = 1 times the power) plus the second power input power (4 times the speed × 0.2 times the torque = 0.8 times the power), totaling 1.8 times. The maximum permissible output power of the transmission device is: the maximum permissible output torque is 8.4 times × the output speed 0.5 times, which equals 4.2 times the maximum permissible output power. The maximum permissible output power of the transmission device is greater than the total input power.

[0036] Example 3 likeFigure 3 As shown, the difference between this embodiment and the above embodiment 1 is that the second power source - the relative stator motor 8-3 (hereinafter referred to as the relative stator motor 8-3) replaces the dual rotor motor 8-1. The relative stator motor 8-3 is fixed relative to the stator at point B of the input differential gear train. The rotor of the relative stator motor 8-3 is mounted on the planetary gears of the input differential gear train and rotates together with the planetary gears.

[0037] like Figure 3 As shown, if the first power source 4 is input with 1 times the positive speed and 1 times the positive torque at point A, a maximum of 5 times the positive torque will be generated at point B, and a maximum of 4 times the negative torque will be generated at point C. The maximum 5 times the positive torque at point B is transmitted to point F through power transmission chain 2 7, and the negative torque at point C is transmitted to point D as 4 times the positive torque through power transmission chain 1 6. Further, if the relative stator motor 8-3 is input with 1 / 8 times the negative torque and 32 / 3 times the negative speed, according to the torque action law of the differential gear train, the relative stator motor 8-3 will act as 1 / 3 times the positive torque at point B. That is, the relative stator motor 8-3, through... The torque transmitted from power transmission chain 27 to point F is 1 / 3 of the positive torque. The torque transmitted from point C to point D via power transmission chain 26 after reversal is also 1 / 3 of the positive torque. The torques transmitted from the first power and the second power to power transmission chains 16 and 27 are superimposed. After the first power and the second power are superimposed, the maximum torques transmitted at points F and D are 16 / 3 times and 13 / 3 times, respectively. According to the torque action law of differential gear train, since the transmission capacity ratio of the moving components corresponding to points D, E, and F is 1:2:1, the maximum driving torque at point E, which is the maximum output torque of the transmission device, is 26 / 3 times. Meanwhile, according to the speed law of the transmission device in this embodiment, the output speed at point E is not related to the input speed of the first power 4, but only to the absolute speed difference between points B and C, which is determined by the input speed of the stator motor 8-3. In this embodiment, the input speed of the stator motor 8-3 is 32 / 3 times negative. According to the speed law of the differential gear train and the structure of the transmission device in this embodiment, it can be further concluded that the speed at point C is 4 times negative, the speed at point D is 4 times positive, and the speed at point F is 3 times negative. Finally, it can be concluded that the output speed of point E, i.e., the transmission device, is 0.5 times the positive speed.

[0038] In summary, the total input power of the transmission device is: the first power input power (1 times the speed × 1 times the torque = 1 times the power) plus the second power input power (32 / 3 times the speed × 1 / 8 times the torque = 4 / 3 times the power), totaling 7 / 3 times. The maximum allowable output power of the transmission device is: the maximum allowable output torque 26 / 3 times × the output speed 0.5 times, which equals 13 / 3 times the maximum allowable output power. The maximum allowable output power of the transmission device can be greater than the total input power.

[0039] The above embodiments are typical applications of the second power connection method of the present invention. Since differential gear trains have various forms and transmission ratios, there are countless connection forms of the second power of the present invention. Other connection methods that are the same as the principle of the present invention are within the protection scope of the present invention. Other forms of application will not be described in detail.

Claims

1. A method for connecting a double differential gear train transmission device with a reversing mechanism to a second power source, wherein the double differential gear train transmission device with a reversing mechanism comprises an input differential gear train, an output differential gear train, and a reversing mechanism. Two sets of motion components with non-minimum torque transmission capacity in the input differential gear train and two sets of motion components with non-maximum torque transmission capacity in the output differential gear train are connected in pairs. One set forms a power transmission chain one via the reversing mechanism, and the other set forms a power transmission chain two without reversing. The motion component with the minimum torque transmission capacity in the input differential gear train is connected to the first power source, and the motion component with the maximum torque transmission capacity in the output differential gear train is connected to the load; characterized in that… Let point O be the rotation center line of the transmission device. In the input differential gear train, the motion component with the minimum torque transmission capacity, the motion component with the maximum torque transmission capacity, and the motion component with neither the maximum nor minimum torque transmission capacity are connected to the planetary gears at points A, B, and C, respectively. In the output differential gear train, the motion component with the maximum torque transmission capacity is connected to the planetary gears at point E, and the two motion components with neither the maximum nor minimum torque transmission capacity are connected to the planetary gears at points D and F, respectively. The connection method between the transmission device and the second power source is as follows: (1) First type of connection method: The outer rotor and inner rotor of the second power-duplex motor are respectively connected to the line projected on the vertical plane of the rotation center line of the transmission device by points A, B, C, and O, and the line extended by the line corresponding to any two points other than points B and C, and points A and C, or the outer rotor and inner rotor of the dual rotor motor are respectively connected to the line projected on the vertical plane of the rotation center line of the transmission device by points D, E, F, and O, and the line extended by the line corresponding to any two points. (2) Second type of connection method: Second power - rotational power connection on the line connecting points A, B, C, and O on the vertical plane of the rotation center line of the transmission device and its extension, or on the line connecting points D, E, F, and O on the vertical plane of the rotation center line of the transmission device and its extension, except for points A and E, corresponding to any point of the motion component. (3) Third type of connection method: Second power - relative stator motor as the second power input of the transmission device, the relative stator of the relative stator motor is fixed on the planetary carrier at point B or point E, and the rotor of the relative stator motor is mounted on the planetary gears and rotates together with the planetary gears.

2. The method for connecting the double differential gear train transmission device with reversing mechanism to the second power source according to claim 1, characterized in that, The specific method for determining the direction of the second power input torque in the first type of connection method is as follows: When the outer and inner rotors of a dual-rotor motor are respectively connected to the motion components corresponding to any two points other than B and C, and A and C on the vertical plane of the rotation center line of the transmission device, the torque direction of the inner and outer rotors to the first and second power transmission chains respectively is such that the torque of the second power transmission chain to the first and second power transmission chains is superimposed on the torque of the first power transmission chain to the first and second power transmission chains, rather than canceled out. When the outer rotor and inner rotor of a dual-rotor motor are respectively connected to the moving components corresponding to any two points on the line projected onto the vertical plane of the rotation center line of the transmission device, and the line of their extension, the torque input direction of the outer rotor and inner rotor of the dual-rotor motor is required to make the torque transmitted by power transmission chain one and power transmission chain two tend to reach a balance with the load resistance torque and be able to achieve a balance.

3. The method for connecting the double differential gear train transmission device with reversing mechanism to the second power source according to claim 1, characterized in that, The specific method for determining the direction of the second power input torque in the second type of connection method is as follows: The torque direction of the rotary power input is required to make the torque transmitted by power transmission chain one and power transmission chain two tend to be balanced with the load resistance torque and be able to achieve balance.

4. The method for connecting the double differential gear train transmission device with reversing mechanism to the second power source according to claim 3, characterized in that: The rotational power refers to the power that outputs rotational speed and torque.

5. The method for connecting the double differential gear train transmission device with reversing mechanism to the second power source according to claim 1, characterized in that, The specific method for determining the direction of the second power input torque in the third type of connection method is as follows: With the planetary carrier at point B as the relative stator and the planetary gears as the rotor, the torque transmitted to power transmission chain one and power transmission chain two through the relative stator and planetary gears respectively is such that the torque transmitted by the second power to power transmission chain one and power transmission chain two is superimposed on the torque transmitted by the first power to power transmission chain one and power transmission chain two, rather than canceled out. With the planetary carrier at point E as the relative stator and the planetary gears as the rotor, the torque input direction is required to make the torque transmitted by power transmission chain one and power transmission chain two tend to reach a balance with the load resistance torque and be able to achieve a balance.

6. The method for connecting the double differential gear train transmission device with reversing mechanism to the second power source according to claim 5, characterized in that: The relative stator motor refers to a motor in which the rotor rotates around the stator. Specifically, it refers to a motor in which the stator is fixed to the planetary carrier and revolves with the planetary carrier, while the rotor rotates around the stator.

Images