Electro-tricycle gearbox assembly and electro-tricycle

Abstract

The utility model relates to a gearbox assembly of an electro-tricycle. The gearbox assembly comprises a shell and a gear transmission cavity arranged in the shell. The shell comprises a first half shell and a second half shell, the first half shell is provided with a motor mounting area, the motor mounting area is provided with motor mounting holes, and the motor mounting holes can form a four-hole motor mounting area and a five-hole motor mounting area. The motor mounting area comprises a bottom plate and a wing plate; the wing plate is circumferentially arranged on the side surface of the bottom plate; the wing plate is provided with a first motor mounting hole, and the bottom plate is provided with a second motor mounting hole; the first motor mounting holes form a four-hole motor mounting area, and the first motor mounting holes and the second motor mounting holes form a five-hole motor mounting area. The gearbox assembly can be suitable for most types of motors in the market, namely a round five-hole motor and a square four-hole motor, has remarkable motor model compatibility and expansibility, can meet the requirement of consumers for improving the performance of the electro-tricycle, and reduces the manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle gearboxes, in particular to an electric tricycle gearbox assembly and an electric tricycle. Background Art

[0002] As a convenient and environmentally friendly means of transportation, electric tricycles have maintained a high market share in both rural and urban areas. With the continuous innovation and progress in battery technology, motor technology, intelligent control and other aspects, the performance and user experience of electric tricycles are also constantly improving. In addition to traditional logistics distribution and public transportation, electric tricycles are also widely used in tourism, urban cleaning, personal transportation and other fields, meeting the needs of different users and becoming one of the important means of transportation.

[0003] The gearbox is one of the important parts of electric tricycles. It provides driving force for electric tricycles by being installed in conjunction with the motor. For electric tricycles currently on the market, the gearbox is usually used in conjunction with the motor, that is, the finished gearbox after manufacturing can usually only install one specification and model of motor, such as the commonly used round five-hole motor. However, with the continuous advancement of motor design and manufacturing, motors with different sizes, shapes and functions are becoming increasingly popular, stimulating consumers to upgrade electric tricycles. For electric tricycles whose various components are within the normal service life cycle, if the motor needs to be adjusted or replaced, the gearbox may also need to be replaced accordingly, which will increase costs and reduce market share. Therefore, it is necessary to provide a gearbox with better motor compatibility to meet consumers' ever-increasing performance requirements for electric tricycles. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides.

[0005] The technical solution provided by the utility model is as follows:

[0006] A gearbox assembly for an electric tricycle comprises a shell and a gear transmission chamber arranged inside the shell, wherein the shell comprises a first half shell and a second half shell; the first half shell is provided with a motor mounting area, and the motor mounting area is provided with motor mounting holes; the motor mounting holes can form a four-hole motor mounting area and a five-hole motor mounting area.

[0007] Furthermore, the motor mounting area includes a base plate and a wing plate, and the wing plate is circumferentially arranged on the side of the base plate; the wing plate is provided with a first motor mounting hole, and the base plate is provided with a second motor mounting hole; the first motor mounting holes constitute a four-hole motor mounting area, and the first motor mounting holes and the second motor mounting holes constitute a five-hole motor mounting area.

[0008] Furthermore, the spatial distribution of the first motor mounting holes is square, and the spatial distribution of the second motor mounting holes is A-shaped.

[0009] Furthermore, the bottom plate is configured to be circular, and the wing plates are configured to be trapezoidal, are evenly distributed on the outer side of the bottom plate, and are integrally formed with the bottom plate.

[0010] Furthermore, the first half shell is provided with a motor mounting area and a half-shaft mounting area; the motor mounting area is provided with a first output shaft hole, and the half-shaft mounting area is provided with a second output shaft hole; taking the line connecting the centers of the first output shaft hole and the second output shaft hole as the reference line, the angle between the diagonal line of the wing plate and the reference line is set to an acute angle of 45°.

[0011] Furthermore, the first motor mounting hole is arranged on each wing plate near the top end along the center line of the wing plate; and the second motor mounting hole is arranged on the bottom plate along the center line of the angle between adjacent wing plates.

[0012] Furthermore, the bottom plate and the wing plate are provided with a plurality of heat dissipation slots.

[0013] Furthermore, the first half shell and the second half shell are fixedly arranged in abutment with each other via a connecting block, and the connecting block is connected by bolt fixing and / or interlocking fixing.

[0014] An electric tricycle comprises the above-mentioned gearbox assembly.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a motor installation area on the housing of the gearbox assembly, and the motor installation area is composed of a bottom plate and a wing plate. Three motor installation holes are provided on the bottom plate, and together with the motor installation holes provided on the wing plate, a five-hole motor installation area can be formed for installing a five-hole motor. The wing plates are evenly arranged around the bottom plate, and through the motor installation holes provided on the wing plates, a four-hole installation structure can be formed in space, which can be used for installing a four-hole motor.

[0017] Since the motors commonly used nowadays are usually round five-hole motors and square four-hole motors, the gearbox assembly recorded in the utility model can be applicable to most types of motors on the market, has significant motor model compatibility and scalability, can meet consumers' demand for improved performance of electric tricycles, and can also reduce manufacturing and use costs, and has good market potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : Schematic diagram of the gearbox assembly structure in an exemplary embodiment (1);

[0019] Figure 2: Schematic diagram of the gearbox assembly structure in an exemplary embodiment (2);

[0020] Figure 3 : Schematic diagram of the gearbox assembly structure in an exemplary embodiment (3);

[0021] Figure 4 : Schematic diagram of the four-hole motor mounting hole structure;

[0022] Figure 5 : Schematic diagram of the five-hole motor mounting hole structure.

[0023] Explanation of symbols

[0024] 1-first half shell, 2-second half shell, 3-connecting block, 4-driving gear cavity, 5-driven gear cavity, 6-transmission gear cavity, 7-motor mounting area, 8-first output shaft hole, 9-semi-shaft mounting area, 10-second output shaft hole, 11-bottom plate, 12-wing plate, 13-heat dissipation groove, 14-first motor mounting hole, 15-second motor mounting hole. DETAILED DESCRIPTION

[0025] The present invention is described in detail below by way of embodiments in conjunction with the accompanying drawings.

[0026] It should be noted that certain words are used in the specification to refer to specific components. Those skilled in the art should understand that technicians may use different nouns to refer to the same component. This specification does not use the difference in nouns as a way to distinguish components, but uses the difference in components' functions as the criterion for distinction. The "include" or "including" mentioned in the specification is an open term, so it should be interpreted as "including but not limited to".

[0027] As shown in the accompanying drawings, a gearbox assembly for an electric tricycle includes a housing and a gear transmission chamber arranged inside the housing.

[0028] The housing includes a first half shell and a second half shell.

[0029] The first half shell and the second half shell are fixedly arranged in abutment with each other, specifically, connecting blocks are arranged at the edges of the first half shell and the second half shell, and the connecting blocks are preferably fixed by a combination of bolt fixing and interlocking fixing.

[0030] The gear transmission chamber includes a driving gear chamber, a driven gear chamber and a transmission gear chamber.

[0031] A driving gear set is arranged inside the driving gear cavity, a driven gear set is arranged inside the driven gear cavity, and a planetary gear set is arranged inside the transmission gear cavity.

[0032] The first half shell is provided with a motor installation area and a half shaft installation area.

[0033] The motor installation area is arranged corresponding to the driving gear cavity and is provided with a first output shaft hole.

[0034] The half-shaft installation area is arranged corresponding to the transmission gear cavity and is provided with a second output shaft hole.

[0035] After the motor is fixedly arranged in the motor installation area, the output shaft of the motor passes through the first output shaft hole and is fixedly connected to the driving gear set; the planetary gear set is fixedly connected to the half shaft of the electric tricycle through the second output shaft hole.

[0036] Inside the housing, the driving gear set, the driven gear set and the planetary gear set mesh in sequence. The driving gear set transmits the mechanical energy transmitted by the motor through the gear set, and further drives the electric tricycle through the half-shaft transmission to operate according to the set operation.

[0037] The motor installation area is arranged on the first half shell and includes a bottom plate and a wing plate.

[0038] The bottom plate is arranged in a circular or quasi-circular shape.

[0039] The wing plate is preferably set to be trapezoidal and has a plurality of heat dissipation slots. The heat dissipation slots not only have the function of heat dissipation, but also have the function of reinforcing ribs formed by the edges formed by the intervals, which can better improve the mechanical properties of the wing plate.

[0040] There are four wing panels, which are evenly distributed on the outer side of the bottom plate, and are preferably formed integrally with the bottom plate.

[0041] Taking the line connecting the centers of the first output shaft hole and the second output shaft hole as the reference line, the angle between the diagonal line of the wing plate and the reference line is preferably set to an acute angle of 45°.

[0042] A first motor mounting hole is arranged on each wing plate near the top along the center line of the wing plate; a second motor mounting hole is arranged on the bottom plate along the center line of the angle between adjacent wing plates.

[0043] The spatial distribution of the first motor mounting holes is square, and the four first motor mounting holes constitute a four-hole motor mounting mechanism for mounting and connecting a four-hole motor, especially a square motor;

[0044] The spatial distribution of the second motor mounting holes is A-shaped, and the three second motor mounting holes and the two second motor mounting holes close to the second output shaft hole form a five-hole motor mounting mechanism for installing and connecting a five-hole motor, especially a round motor.

[0045] In the above embodiment,

[0046] The positions of the first motor mounting hole and the second motor mounting hole on the wing plate and the bottom plate should be adjusted according to actual manufacturing and use requirements.

[0047] The utility model also records an electric tricycle, which includes the gearbox assembly described in the above embodiment.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An electric tricycle gearbox assembly, comprising a housing and a gear transmission chamber arranged inside the housing, characterized in that: The housing comprises a first half shell and a second half shell; The first half shell is provided with a motor installation area, and the motor installation area is provided with a motor installation hole; The motor mounting holes can form a four-hole motor mounting area and a five-hole motor mounting area.

2. The electric tricycle gearbox assembly according to claim 1, characterized in that: The motor installation area includes a bottom plate and a wing plate, and the wing plate is circumferentially arranged on the side of the bottom plate; The wing plate is provided with a first motor mounting hole, and the bottom plate is provided with a second motor mounting hole; The first motor mounting holes form a four-hole motor mounting area, and the first motor mounting holes and the second motor mounting holes form a five-hole motor mounting area.

3. The electric tricycle gearbox assembly according to claim 2, characterized in that: The spatial distribution of the first motor mounting holes is square, and the spatial distribution of the second motor mounting holes is A-shaped.

4. The electric tricycle gearbox assembly according to claim 2, characterized in that: The bottom plate is configured to be circular, and the wing plates are configured to be trapezoidal, are evenly distributed on the outside of the bottom plate, and are integrally formed with the bottom plate.

5. The electric tricycle gearbox assembly according to claim 4, characterized in that: The first half shell is provided with a motor installation area and a half shaft installation area; The motor installation area is provided with a first output shaft hole, and the half-shaft installation area is provided with a second output shaft hole; Taking the line connecting the centers of the first output shaft hole and the second output shaft hole as the reference line, the angle between the diagonal line of the wing plate and the reference line is set to an acute angle of 45°.

6. The electric tricycle gearbox assembly according to claim 5, characterized in that: The first motor mounting hole is arranged near the top end of each wing plate along the center line of the wing plate; and the second motor mounting hole is arranged on the bottom plate along the center line of the angle between adjacent wing plates.

7. An electric tricycle gearbox assembly according to any one of claims 2 to 6, characterized in that: The bottom plate and the wing plate are provided with a plurality of heat dissipation slots.

8. An electric tricycle gearbox assembly according to any one of claims 2 to 6, characterized in that: The first half shell and the second half shell are fixedly arranged in abutment with each other via a connecting block, and the connecting block is connected by bolt fixing and / or interlocking fixing.

9. An electric tricycle, characterized in that: The invention comprises the electric tricycle gearbox assembly as described in any one of claims 1 to 8.

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