Electric gearbox assembly

Abstract

The invention relates to the technical field of gearboxes, in particular to an electric gearbox assembly which comprises a box body and a motor, a power transmission shaft is arranged at the power output end of the motor, an intermediate shaft is arranged in the middle of the box body, a synchronous gear ring is slidably connected to the middle of the intermediate shaft, a power output shaft is arranged in the middle of the lower end of the box body, and a shifting gear shifting mechanism is arranged in the middle of the box body. The shifting gear shifting mechanism is composed of a mounting column, a second spring, a second steel ball, a four-wheel-drive shifting fork, a locking column and a sleeve, the box body is formed by splicing a left box body and a right box body, transmission flanges are fixedly connected to the two ends of the power output shaft, and a motor connecting cover is fixedly connected to the connecting position of the left side of the box body and the power transmission shaft; a gear shifting rotating arm is rotationally connected to the outer side of the box body, the two ends of the gear shifting rotating arm penetrate through the box body, and a rocker arm plate is fixedly connected to the upper end of the gear shifting rotating arm.

Description

Technical Field

[0001] The invention relates to the technical field of gearboxes, and in particular to an electric gearbox assembly. Background Art

[0002] The automobile industry has gradually become a supporting industry in my country. With the large-scale development of the automobile industry, the price of automobiles has become lower and lower, and automobiles have begun to enter thousands of households. Cars need different power outputs when driving on different roads. If a higher power is output on a road with poor road conditions, the car's passability will be poor. At the same time, the high-speed rotation of the power shaft when driving at low speeds is likely to cause damage to the gearbox. At the same time, high-power transmission has high fuel consumption and poor economy. The main shifting method of the existing gearbox is to push and pull the shift arm. The shift arm drives the gear to switch when moving. This switching method causes the swing arm to be long enough to save effort, making the gearbox larger and occupying more space in the cab. If it is some more compact models, the length of the shift arm can only be shortened, resulting in greater physical exertion of the driver when shifting gears. Summary of the invention

[0003] The object of the present invention is to provide an electric transmission assembly to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric transmission assembly, comprising a housing and a motor, a power output end of the motor is provided with a power transmission shaft, an intermediate shaft is provided in the middle of the housing, a synchronous gear ring is slidably connected in the middle of the intermediate shaft, a power output shaft is provided in the middle of the lower end of the housing, a toggle shift mechanism is provided in the middle of the housing, the toggle shift mechanism is composed of a mounting column, a second spring, a second steel ball, a four-wheel drive fork, a locking column and a sleeve, the housing is composed of a left housing and a right housing, both ends of the power output shaft are fixedly connected with a transmission flange, a motor connection cover is fixedly connected at the connection between the left side of the housing and the power transmission shaft, a shift rotating arm is rotatably connected to the outer side of the housing, both ends of the shift rotating arm pass through the housing, the upper end of the shift rotating arm is fixedly connected with a rocker plate, and the lower end of the shift rotating arm is connected to the top of the locking column.

[0005] Preferably, the middle sleeve of the power transmission shaft is connected with a primary high-speed driving gear and a spacer sleeve, the middle of the right side of the power transmission shaft is fixedly connected with a power transmission shaft gear, the middle of the power transmission shaft is provided with a first deep groove ball bearing, and the tail end of the power transmission shaft is provided with a second deep groove ball bearing, and the outer side walls of the first deep groove ball bearing and the second deep groove ball bearing are fixedly connected to the inner wall of the box body.

[0006] Preferably, a third deep groove ball bearing and a fourth deep groove ball bearing are respectively provided at both ends of the intermediate shaft, and the outer side walls of the third deep groove ball bearing and the fourth deep groove ball bearing are fixedly connected to the box body, a secondary high-speed driving gear is provided on the left side of the synchronous gear ring, a high-speed triplet is provided between the secondary high-speed driving gear and the synchronous gear ring, a low-speed triplet is provided on the right side of the synchronous gear ring, and a secondary low-speed driving gear is provided on the right side of the low-speed triplet, and a connecting groove is provided on the outer side wall of the synchronous gear ring, and the top ends of the high and low gear forks are inserted in the connecting groove.

[0007] Preferably, a synchronous gear ring is slidably connected in the middle of the power output shaft, a four-wheel drive transfer fork is fixedly connected to the outer wall of the synchronous gear ring, a low-speed double gear and a high-speed double gear are sleeved in the middle of the power output shaft, a fifth deep groove ball bearing and a sixth deep groove ball bearing are provided on the right side of the power output shaft, and a seventh deep groove ball bearing and an eighth deep groove ball bearing are provided on the left side of the power output shaft teeth.

[0008] Preferably, the mounting column is fixedly connected in the box body, the top end of the second spring is connected to the mounting column, the second steel ball is clamped on the top end of the second spring, and the locking column slides horizontally in the box body.

[0009] Preferably, a plurality of locking grooves are provided on the side end of the locking column, the second steel ball is clamped in the locking groove, the four-wheel drive fork is fixedly connected to the side end of the locking column, the sleeve is sleeved on the synchronous gear ring and slides on the synchronous scale ring, a clamping groove is provided on the outer side wall of the sleeve, and the top end of the four-wheel drive fork is clamped with the clamping groove.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the driver can change the driving mode of the car according to the actual driving scenario. The low-speed driving mode can be used on urban roads, which can greatly reduce the fuel consumption of the car. When on high-speed, steep slope and off-road sections that require sufficient power to pass, the driving mode of the car can be adjusted to increase the power of the car, thereby increasing the passability of the car, so that the driver has a better driving experience, is convenient to use, reduces wear and tear, and increases the service life of the assembly; compared with the traditional up and down push-pull change mode, the present invention drives the movement of the locking column by a rocker arm to form a lever principle, which can greatly reduce the moving distance of the locking column, reduce the occupation of the internal structure space, and make the gearbox more compact. At the same time, the use of the lever principle can reduce the effort used in shifting gears, and can effectively reduce the physical exertion of the driver on sections that require frequent gear shifting, so that the driver can drive the car more easily and comfortably, and increase the competitiveness of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the internal connections of the gearbox.

[0012] Figure 2 This is a schematic diagram of the locking column rocker arm shift connection.

[0013] Figure 3 This is a schematic diagram of the connection between the low-speed and high-speed switching mechanism.

[0014] In the figure: 1 motor, 2 rocker arm plate, 3 shift rotating arm, 6 power transmission shaft, 7 housing, 8 first deep groove ball bearing, 9 spacer, 10 first high speed driving gear, 11 second deep groove ball bearing, 12 third deep groove ball bearing, 13 second high speed driving gear, 14 high and low gear shift fork, 15 synchronous gear ring, 16 second low speed driving gear, 17 low speed triple gear, 18 intermediate shaft, 19 fourth deep groove ball bearing, 20 four-wheel drive transfer fork, 21 synchronous gear ring, 22 low speed double gear, 23 fifth deep groove ball bearing, 24 sixth deep groove ball bearing, 25 power output shaft, 26 transmission flange, 27 seventh deep groove ball bearing, 28 eighth deep groove ball bearing, 29 needle bearing, 35 mounting column, 36 second spring, 37 second steel ball, 38 four-wheel drive fork, 39 locking column, 40 sleeve, 41 left housing, 42 right housing, 43 motor connection cover. DETAILED DESCRIPTION

[0015] In order to deepen the understanding and recognition of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described and introduced in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the embodiments in any form. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-3 The present invention provides a technical solution: an electric transmission assembly, including a case 7 and a motor 1, a power output end of the motor 1 is provided with a power transmission shaft 6, an intermediate shaft 18 is provided in the middle of the case 7, a synchronous gear ring 15 is slidably connected in the middle of the intermediate shaft 18, a power output shaft 25 is provided in the middle of the lower end of the case 7, a toggle shift mechanism is provided in the middle of the case 7, and the toggle shift mechanism is composed of a mounting column 35, a second spring 36, a second steel ball 37, a four-wheel drive fork 38, a locking column 39 and a sleeve 40. The case 7 is composed of a left case 41 and a right case 42. Both ends of the power output shaft 25 are fixedly connected with a transmission flange 26, and a motor connection cover 43 is fixedly connected to the connection between the left side of the case 7 and the power transmission shaft 6. The outer side of the case 7 is rotatably connected with a shift rotating arm 3, and both ends of the shift rotating arm 3 pass through the case 7. The upper end of the shift rotating arm 3 is fixedly connected with a rocker plate 2, and the lower end of the shift rotating arm 3 is connected to the top of the locking column 39.

[0017] A primary high-speed driving gear 10 and a spacer sleeve 9 are sleeved in the middle of the power transmission shaft 6, a power transmission shaft gear 45 is fixedly connected to the middle of the right side of the power transmission shaft 6, a first deep groove ball bearing 8 is arranged in the middle of the power transmission shaft 6, a second deep groove ball bearing 11 is arranged at the tail end of the power transmission shaft 6, the outer side walls of the first deep groove ball bearing 8 and the second deep groove ball bearing 11 are fixedly connected to the inner wall of the box body 7, a third deep groove ball bearing 12 and a fourth deep groove ball bearing 19 are respectively arranged at both ends of the intermediate shaft 18, the outer side walls of the third deep groove ball bearing 12 and the fourth deep groove ball bearing 19 are fixedly connected to the box body 7, a secondary high-speed driving gear 13 is arranged on the left side of the synchronous gear ring 15, a high-speed triple gear 44 is arranged between the secondary high-speed driving gear 13 and the synchronous gear ring 15, a low-speed triple gear 17 is arranged on the right side of the synchronous gear ring 15, and a secondary low The outer side wall of the synchronous gear ring 15 is provided with a connecting groove, the top of the high and low gear fork 14 is inserted in the connecting groove, the middle of the power output shaft 25 is slidably connected with the synchronous gear ring 21, and the outer side wall of the synchronous gear ring 21 is fixedly connected with the four-wheel drive transfer fork 20, the middle of the power output shaft 25 is sleeved with a low-speed double-linked gear 22 and a high-speed double-linked gear 29, the right side of the power output shaft 25 is provided with a fifth deep groove ball bearing 23 and a sixth deep groove ball bearing 24, and the left side of the power output shaft gear 25 is provided with a seventh deep groove ball bearing 27 and an eighth deep groove ball bearing 28. When the four-wheel drive transfer fork 20 moves, it can drive the synchronous gear ring 15 to adjust, so that the secondary high-speed driving gear 13 and the low-speed triple gear 17 are respectively connected to the primary high-speed driving gear 10, so as to adjust the gear position of the car to adapt to the speed of the car.

[0018] The mounting post 35 is fixedly connected to the housing 7, the top of the second spring 36 is connected to the mounting post 35, the second steel ball 37 is clamped to the top of the second spring 36, the locking post 39 slides horizontally in the housing 7, the side end of the locking post 39 is provided with a plurality of locking grooves, the second steel ball 37 is clamped in the locking groove, the four-wheel drive fork 38 is fixedly connected to the side end of the locking post, the sleeve 40 is sleeved on the synchronous gear ring 21, and slides on the synchronous scale ring 21, the outer wall of the sleeve 40 is provided with a clamping groove, the top of the four-wheel drive fork 38 is clamped with the clamping groove, and when the shift arm 35 drives the first four-wheel drive fork shaft 36 to move horizontally left and right, the second steel ball 37 is clamped in the second positioning groove at different positions, and the moving position of the first four-wheel drive fork shaft 36 is positioned. The locking column 39 is driven to move by a rocker arm, which can greatly reduce the volume occupied by the gearbox and save more effort when driving. The four-wheel drive fork 38 controls the movement of the sleeve 40, thereby controlling the power output shaft to be connected to the secondary high-speed gear 13 and the secondary low-speed driving gear 16 respectively, providing different power for the car. When the power output shaft 25 is connected to the secondary high-speed gear 13, the car has more power, greater torque and faster speed. When the power output shaft 25 is connected to the secondary low-speed driving gear, the power of the car is reduced. When the car is on different roads, it can provide different power for the car, control the energy consumption of the car, and make the car run more economically.

[0019] Although the embodiments of the present invention have been shown and described, it should be emphasized that the above description is only an introduction and description of the use of the embodiments of the present invention, and does not limit the present invention in any form. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electric gearbox assembly, comprising a housing (7) and a motor (1), characterized in that: A power transmission shaft (6) is provided at the power output end of the motor (1), an intermediate shaft (18) is provided in the middle of the housing (7), a synchronous gear ring (15) is slidably connected in the middle of the intermediate shaft (18), a power output shaft (25) is provided in the middle of the lower end of the housing (7), a shifting mechanism is provided in the middle of the housing (7), the shifting mechanism is composed of a mounting column (35), a second spring (36), a second steel ball (37), a four-wheel drive fork (38), a locking column (39) and a sleeve (40), and the housing (7) is composed of The left case (41) and the right case (42) are assembled, both ends of the power output shaft (25) are fixedly connected with a transmission flange (26), the left side of the case (7) and the connection with the power transmission shaft (6) are fixedly connected with a motor connection cover (43), the outer side of the case (7) is rotatably connected with a shift rotary arm (3), both ends of the shift rotary arm (3) pass through the case (7), the upper end of the shift rotary arm (3) is fixedly connected with a rocker plate (2), and the lower end of the shift rotary arm (3) is connected to the top of a locking column (39).

2. The electric transmission assembly according to claim 1, characterized in that: The middle of the power transmission shaft (6) is sleeved with a first-stage high-speed driving gear (10) and a spacer sleeve (9); the middle of the right side of the power transmission shaft (6) is fixedly connected with a power transmission shaft gear (45); the middle of the power transmission shaft (6) is provided with a first deep groove ball bearing (8); the tail end of the power transmission shaft (6) is provided with a second deep groove ball bearing (11); the outer side walls of the first deep groove ball bearing (8) and the second deep groove ball bearing (11) are fixedly connected to the inner wall of the box body (7).

3. The electric transmission assembly according to claim 1, characterized in that: A third deep groove ball bearing (12) and a fourth deep groove ball bearing (19) are respectively provided at both ends of the intermediate shaft (18); the outer side walls of the third deep groove ball bearing (12) and the fourth deep groove ball bearing (19) are fixedly connected to the housing (7); a secondary high-speed driving gear (13) is provided on the left side of the synchronous gear ring (15); a high-speed triple gear (44) is provided between the secondary high-speed driving gear (13) and the synchronous gear ring (15); a low-speed triple gear (17) is provided on the right side of the synchronous gear ring (15); a secondary low-speed driving gear (16) is provided on the right side of the low-speed triple gear (17); a connecting groove is provided on the outer side wall of the synchronous gear ring (15); and the top end of the high-low gear shift fork (14) is inserted into the connecting groove.

4. The electric transmission assembly according to claim 1, characterized in that: The middle of the power output shaft (25) is slidably connected to a synchronous gear ring (21), the outer wall of the synchronous gear ring (21) is fixedly connected to a four-wheel drive transfer fork (20), the middle of the power output shaft (25) is sleeved with a low-speed double-linked gear (22) and a high-speed double-linked gear (29), the right side of the power output shaft (25) is provided with a fifth deep groove ball bearing (23) and a sixth deep groove ball bearing (24), and the left side of the power output shaft gear (25) is provided with a seventh deep groove ball bearing (27) and an eighth deep groove ball bearing (28).

5. The electric transmission assembly according to claim 1, characterized in that: The mounting column (35) is fixedly connected to the box body (7), the top end of the second spring (36) is connected to the mounting column (35), the second steel ball (37) is clamped to the top end of the second spring (36), and the locking column (39) slides horizontally in the box body (7).

6. The electric transmission assembly according to claim 1, characterized in that: The side end of the locking column (39) is provided with a plurality of locking grooves, the second steel ball (37) is engaged in the locking grooves, the four-wheel drive fork (38) is fixedly connected to the side end of the locking column, the sleeve (40) is sleeved on the synchronous gear ring (21) and slides on the synchronous scale ring (21), the outer side wall of the sleeve (40) is provided with a clamping groove, and the top end of the four-wheel drive fork (38) is clamped in the clamping groove.

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