CN211737893U - Dual Power Vehicle Powertrain - Google Patents

Abstract

The utility model discloses a dual-power vehicle power system, comprising a main drive motor, an auxiliary drive motor, a power combination component and a transmission assembly; the power combination component includes a first power input shaft, a second power input shaft, a first power input shaft, a first power input shaft, a first power input shaft, a first power input shaft The intermediate shaft, the second intermediate shaft, the first input gear, the second input gear, the first combined gear, the second combined gear, the transmission gear pair and the power combined output gear; the electric vehicle of the power system can pass a The motor is driven; the power consumption is reduced, and two motors are selected as the driving power when the load is high to meet the power demand.

Description

Dual Power Vehicle Powertrain

technical field

The utility model relates to the field of vehicle chassis components, in particular to a dual power vehicle power system.

Background technique

In recent years, with the increasing awareness of green environmental protection, energy saving and emission reduction, and the gradual improvement of related laws, more and more electric-driven vehicles are used. However, for the electric tricycle for freight, if pure electric is used, the corresponding high-power motor and controller are less selected and the cost is higher. Therefore, the current market usually realizes the driving power of the high-power motor through the simultaneous driving of two motors. The existing dual-motor coupling drive device usually needs to use a planetary gear pair for power coupling, and its structure is relatively complex, and it is difficult to adapt to freight with high cost requirements. Electric tricycle.

Therefore, there is a need for a dual-power vehicle power system with a simple and compact structure. The electric vehicle using the power system can be driven by one motor when the load is low; to reduce power consumption, two motors are selected as the driving power when the load is high. meet power needs.

Utility model content

The dual-power vehicle power system of the utility model comprises a main drive motor, an auxiliary drive motor, a power combination component and a transmission assembly;

The power coupling assembly includes a first power input shaft, a second power input shaft, a first intermediate shaft, a second intermediate shaft, a first input gear, a second input gear, a first coupling gear, a second coupling gear, and a transmission gear Auxiliary and power combined output gear;

The first power input shaft and the second power input shaft are correspondingly connected to the output shafts of the main drive motor and the auxiliary drive motor respectively (that is, fixedly connected by a coupling); the first input gear and the second input gear are respectively Through an overrunning clutch, it is matched with the first power input shaft and the second power input shaft; the first combined gear is meshed with the first input gear, and the first combined gear is driven and matched with the first intermediate shaft; the second combined gear and The second input gear meshes with the second input gear, and the second coupling gear is idle on the first intermediate shaft; a coupling sleeve is provided between the first coupling gear and the second coupling gear for controlling the combination or separation of the two; the first intermediate shaft The power is transmitted to the second intermediate shaft through the transmission gear pair; the second intermediate shaft transmits the power to the input end of the transmission assembly through the power combined with the output gear.

Further, the opposite end faces of the first coupling gear and the second coupling gear are extended with connecting sleeves; the outer circumference of the connecting sleeve is distributed with coupling teeth; the inner circle of the coupling sleeve is distributed with the coupling teeth meshing the combined tooth slot.

Further, both the main drive motor and the auxiliary drive motor include a motor body and a deceleration assembly mounted on the end face of the motor body; the deceleration assembly includes a deceleration casing fixed on the output end of the motor body, which is arranged in the casing and The sun gear fixedly connected with the rotating shaft of the motor body, the ring gear integrally formed on the inner circular surface of the reduction housing, the planetary gear meshed between the ring gear and the sun gear, the planetary carrier connected with the planetary gear, and the The motor output shaft of the planet carrier.

Further, the transmission assembly includes a main transmission and an auxiliary transmission; the main transmission is a six-speed transmission; the auxiliary transmission is a two-speed transmission; the output end of the main transmission is drivingly connected to the input end of the auxiliary transmission.

Further, the main transmission includes a first shaft and a second shaft that are parallel to each other; power is transmitted between the first shaft and the second shaft through six groups of shifting gear pairs; synchronization is provided between adjacent shifting gear pairs device.

Further, the transmission assembly further includes a transmission housing; a partition is arranged in the transmission housing, and the inner cavity of the transmission housing is divided into a first cavity and a second cavity by the partition; the main transmission and the auxiliary transmission are respectively Correspondingly installed in the first cavity and the second cavity.

Further, the shaft section of the first shaft extending out of the transmission casing is fixedly fitted with a transmission input gear; the shaft section of the second shaft extending out of the transmission casing is vacantly sleeved with a transition gear; the power combined output gear passes through the transition gear Input power to the transmission input gear.

The beneficial effects of the utility model: when the vehicle load is small, the existing shift fork can push the coupling sleeve to slide to the left, so that the coupling sleeve and the second coupling gear are disengaged, and the power of the main drive motor drives the first power input shaft Rotating, the first power input shaft is sequentially transmitted to the power combined output gear through the first input gear, the first combined gear and the transmission gear pair, and finally the power is input to the input end of the transmission through the first combined output gear;

When the vehicle load is large, the existing shift fork can push the coupling sleeve to slide to the right, so that the coupling sleeve is combined with the first coupling gear and the second coupling gear at the same time, and the power of the main drive motor drives the first power input shaft. It rotates and transmits the power to the first combination gear through the first input gear; the power of the auxiliary drive motor drives the second power input shaft to rotate, and transmits the power to the second combination gear through the second input gear. The transmission connection is realized with the second combined gear through the combined sleeve; therefore, the two powers will converge here, and finally, the first combined gear will transmit the power to the combined output gear through the transmission gear pair in turn, and finally the power will be input to the output gear through the first combined output gear. input of the transmission.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the drive motor of the present invention;

3 is a schematic structural diagram of a power coupling assembly of the present invention;

FIG. 4 is a schematic structural diagram of the transmission assembly of the present invention.

Detailed ways

Example 1:

1 is a schematic structural diagram of the utility model, as shown in the figure: the dual-power vehicle power system of the present embodiment includes a main drive motor 2, an auxiliary drive motor 1, a power combination assembly 3 and a transmission assembly 4;

As shown in FIG. 3 , the power coupling assembly 3 includes a first power input shaft 39 , a second power input shaft 31 , a first intermediate shaft, a second intermediate shaft 37 , a first input gear 310 , a second input gear 32 , a first The coupling gear 35, the second coupling gear, the transmission gear pair 38 and the power coupling output gear 36;

The first power input shaft 39 and the second power input shaft 31 are respectively connected to the output shafts of the main drive motor 2 and the auxiliary drive motor 1 in a driving connection (that is, fixedly connected by a coupling); the first input gear 310 and The second input gear 32 is respectively matched with the first power input shaft 39 and the second power input shaft 31 through an overrunning clutch 33; the first combined gear 35 is meshed with the first input gear 310, and the first combined gear 35 is drivingly matched with the first input gear 310. The first intermediate shaft; the second combined gear meshes with the second input gear 32, and the second combined gear is idle on the first intermediate shaft; between the first combined gear 35 and the second combined gear The first intermediate shaft transmits power to the second intermediate shaft 37 through the transmission gear pair 38 ; the second intermediate shaft 37 transmits the power to the transmission assembly 4 through the power combined output gear 36 input. The transmission assembly 4 can adopt all existing transmissions;

The opposite end faces of the first coupling gear 35 and the second coupling gear are extended with connecting sleeves; the outer circumference of the connecting sleeve is distributed with coupling teeth; the inner circle of the coupling sleeve 34 is distributed with the coupling teeth. the combined tooth slot;

When the vehicle load is small, the existing shift fork can push the coupling sleeve 34 to slide to the left, so that the coupling sleeve 34 is disengaged from the second coupling gear. The power of the main drive motor 2 drives the first power input shaft 39 to rotate, and the first power input shaft 39 rotates. A power input shaft 39 sequentially transmits the power to the combined output gear 36 through the first input gear 310, the first combined gear 35 and the transmission gear pair 38, and finally inputs the power to the input end of the transmission through the first combined output gear 36;

When the vehicle is heavily loaded, the existing shift fork can push the coupling sleeve 34 to slide to the right, so that the coupling sleeve 34 is combined with the first coupling gear 35 and the second coupling gear at the same time, and the power of the main drive motor 2 drives the first coupling gear 35 and the second coupling gear. A power input shaft 39 rotates and transmits the power to the first coupling gear 35 through the first input gear 310 ; the power of the auxiliary drive motor 1 drives the second power input shaft 31 to rotate, and transmits the power to the first coupling gear 35 through the second input gear 32 . The second coupling gear, because the first coupling gear 35 and the second coupling gear are connected through the coupling sleeve 34 to realize the transmission connection; therefore, the two powers will converge here, and finally the first coupling gear 35 will be transmitted to the power coupling through the transmission gear pair 38 in turn. The output gear 36 finally inputs power to the input end of the transmission through the first combined output gear 36 . In addition, both the first input gear 310 and the second input gear 32 cooperate with the first power input shaft 39 and the second power input shaft 31 through the overrunning clutch 33; therefore, when the rotational speed of one driving motor is lower than that of the other driving motor At the speed of rotation, the overrunning clutch 33 corresponding to the drive motor will overrun, so the power system has lower requirements on the speed synchronization of the two drive motors.

Embodiment 2:

In this embodiment, the main drive motor 2 and the auxiliary drive motor 1 in the first embodiment are replaced with the following structures. The deceleration assembly includes a deceleration casing fixed on the output end of the motor body 11, a sun gear arranged in the casing and fixedly connected with the rotating shaft 16 of the motor body 11, a sun gear integrally formed on the inner circular surface of the deceleration casing A ring gear 17, a planetary gear 12 meshing between the ring gear 17 and the sun gear, a planetary carrier 15 connected to the planetary gear 12, and a motor output shaft 14 fixed to the planetary carrier 15; in this embodiment , a planetary gear 12 reducer is arranged on the output end face of the motor body 11 to realize deceleration and distance increase, and improve the driving capacity of the motor.

Embodiment three:

In this embodiment, on the basis of the first embodiment, the transmission assembly 4 is replaced with the following structure; the transmission assembly 4 includes a main transmission and an auxiliary transmission; the main transmission is a six-speed transmission; the auxiliary transmission is a two-speed transmission The transmission; the output end of the main transmission is drivingly connected to the input end of the auxiliary transmission. The combination of the main transmission and the auxiliary transmission will achieve twelve gears. Both the main transmission and the auxiliary transmission can have existing manual multi-speed transmission structures.

Embodiment 4:

In this embodiment, on the basis of the third embodiment, the structure of the transmission assembly 4 is defined as follows:

The main transmission 42 includes a first shaft 44 and a second shaft 43 that are parallel to each other; the first shaft 44 and the second shaft 43 pass through six groups of shifting gear pairs (45, 46, 47, 48, 49, 410) power transmission; synchronizers are arranged between adjacent shift gear pairs.

The auxiliary transmission 41 includes a third shaft 414 and a fourth shaft 413 that are parallel to each other; and the second shaft 43 is connected with the third shaft 414 in a transmission transmission; The shifting gear pairs (411, 412) transmit power; a synchronizer is arranged between adjacent shifting gear pairs.

The transmission assembly 4 also includes a transmission housing; a partition is arranged in the transmission housing, and the inner cavity of the transmission housing is divided into a first cavity and a second cavity by the partition; the main transmission 42 and the auxiliary transmission 41 Correspondingly installed in the first cavity and the second cavity, this housing structure compactly installs the main transmission 42 and the auxiliary transmission 41, and a bearing seat is provided on the partition to support the rotating shafts of the main transmission 42 and the auxiliary transmission 41 .

Embodiment 5:

In this embodiment, on the basis of the fourth embodiment, a transmission input gear is fixedly matched with the shaft section of the first shaft extending out of the transmission housing; gear; the power combined output gear inputs power to the transmission input gear through the transition gear; since the power combined output gear is far away from the transmission input gear, a transition gear is vacant on the second shaft of the transmission, which is convenient for combining the power with the output gear The power can be transmitted to the transmission input gear.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should The technical solutions are modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and all of them should be included in the scope of the claims of the present invention.

Claims (7)

1. A dual-power vehicle power system, characterized in that: comprising a main drive motor, an auxiliary drive motor, a power combination assembly and a transmission assembly; The power coupling assembly includes a first power input shaft, a second power input shaft, a first intermediate shaft, a second intermediate shaft, a first input gear, a second input gear, a first coupling gear, a second coupling gear, and a transmission gear Auxiliary and power combined output gear; The first power input shaft and the second power input shaft are correspondingly connected to the output shafts of the main drive motor and the auxiliary drive motor respectively; the first input gear and the second input gear are respectively connected to the first power input through an overrunning clutch. The shaft is matched with the second power input shaft; the first combined gear is meshed with the first input gear, and the first combined gear is driven and matched with the first intermediate shaft; the second combined gear is meshed with the second input gear, and the second combined The gear is idle on the first intermediate shaft; a coupling sleeve for controlling the combination or separation of the two is provided between the first coupling gear and the second coupling gear; the first intermediate shaft transmits power to the second coupling through the transmission gear pair an intermediate shaft; the second intermediate shaft transmits the power to the input end of the transmission assembly through the power combined with the output gear. 2 . The dual power vehicle power system according to claim 1 , wherein the opposite end faces of the first coupling gear and the second coupling gear are extended with connecting sleeves; the outer circumference of the connecting sleeve is distributed with connecting sleeves. 3 . teeth; the inner circle of the coupling sleeve is distributed with coupling tooth grooves engaged with the coupling teeth. 3 . The dual power vehicle power system according to claim 2 , wherein the main drive motor and the auxiliary drive motor both comprise a motor body and a deceleration assembly mounted on the end face of the motor body; the deceleration assembly includes The deceleration casing fixed on the output end of the motor body, the sun gear arranged in the casing and fixedly connected with the rotating shaft of the motor body, the ring gear integrally formed on the inner circular surface of the deceleration casing, and meshing between the ring gear and the sun gear. A planetary gear between the planetary gears, a planetary carrier connected with the planetary gear, and a motor output shaft fixed on the planetary carrier. 4 . The dual power vehicle power system according to claim 3 , wherein: the transmission assembly comprises a main transmission and an auxiliary transmission; the main transmission is a six-speed transmission; the auxiliary transmission is a two-speed transmission; The output end of the main transmission is drivingly connected to the input end of the auxiliary transmission. 5 . The dual power vehicle power system according to claim 4 , wherein: the main transmission comprises a first shaft and a second shaft that are parallel to each other; the first shaft and the second shaft are exchanged through six groups of The shifting gear pair transmits power; a synchronizer is arranged between adjacent shifting gear pairs. 6 . The dual power vehicle power system according to claim 5 , wherein the transmission assembly further comprises a transmission housing; a partition is arranged in the transmission housing and the inner cavity of the transmission housing is separated by the partition. 7 . are the first cavity and the second cavity; the main transmission and the auxiliary transmission are respectively installed in the first cavity and the second cavity. 7 . The dual power vehicle power system according to claim 6 , wherein the shaft section of the first shaft extending out of the transmission housing is fixedly fitted with a transmission input gear; the second shaft extending out of the transmission housing A transition gear is sleeved in the shaft segment; the power is combined with the output gear to input power to the transmission input gear through the transition gear.

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