Replaceable lightweight drive module chassis

Abstract

The utility model provides a replaceable lightweight drive module chassis, including chassis and drive module, drive module sets up on the upper end of chassis, the chassis includes the bottom plate and four wheel hub mounting plates of integrated mould, four wheel hub mounting plates and bottom plate between arc transition, wheel hub mounting plate outside still is equipped with the baffle, wheel hub mounting plate lower extreme still is equipped with the wheel shaft positioning sleeve, drive module includes module casing, wheel hub motor and battery group. The utility model has the advantages of: through the integrated mould design of chassis, light weight and structural strength are considered, can be adapted to complex road surface and improve the endurance, through the detachable drive module, users can independently replace to reduce the operation and maintenance cost, space integration optimization, provide efficient and reliable scheme for wheelchair drive system, improve user experience.

Description

Technical Field

[0001] This utility model mainly relates to the field of electric wheelchair technology, specifically to a replaceable lightweight drive module chassis. Background Technology

[0002] In the field of electric wheelchairs, traditional drive chassis generally suffer from low modularity, cumbersome maintenance, insufficient transmission stability, and poor lightweight performance.

[0003] Most electric wheelchairs have their drive components and chassis fixedly connected. If the motor fails or the battery life decreases, professional personnel are required to perform large-scale disassembly and repair of the chassis, making it extremely difficult for users to maintain themselves. The chassis has many redundant structures and is not lightweight enough, which increases the burden on the battery life and the weight pressure when folding and transporting the electric wheelchair, affecting its range and portability.

[0004] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model: This invention provides a replaceable lightweight drive module chassis to solve the technical problems existing in the background art.

[0006] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: a replaceable lightweight drive module chassis, comprising a chassis and a drive module, wherein the drive module is disposed on the upper end of the chassis, the chassis comprising an integrally formed base plate and four wheel hub mounting plates, wherein the four wheel hub mounting plates are connected to the base plate by an arc transition, a baffle is provided on the outer side of the wheel hub mounting plate, and a wheel axle positioning sleeve is provided at the lower end of the wheel hub mounting plate, wherein the drive module comprises a module housing, a wheel hub motor and a battery pack.

[0007] Furthermore, an axle mounting groove is provided at the lower end of the base plate near the hub mounting plate, and the axle positioning sleeves are located at both ends of the axle mounting groove.

[0008] Furthermore, the wheel axle positioning sleeve is provided with a drive shaft, wherein a driven gear is provided on the drive shaft near the lower end of the drive module.

[0009] Furthermore, the hub motor is located inside the module housing, and its drive end is provided with a drive gear that is axially aligned with the drive shaft. The drive gear meshes with the driven gear.

[0010] Furthermore, the battery pack is located at the rear end of the base plate, and the battery pack is detachably connected to the module housing.

[0011] Furthermore, a drive linkage groove is provided on the module housing, and the lower end of the drive linkage groove passes through the module housing and the base plate respectively.

[0012] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: The integrated chassis design balances lightweight construction with structural strength, making it adaptable to complex road surfaces and improving range. The detachable drive module allows users to replace it themselves, reducing maintenance costs. The space integration and optimization provide an efficient and reliable solution for wheelchair drive systems, enhancing the user experience.

[0013] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle; Figure 3 This is a schematic diagram of the chassis structure of this utility model.

[0015] Figure label: 1. Base plate; 2. Hub mounting plate; 3. Baffle; 4. Axle positioning sleeve; 5. Hub motor; 6. Battery pack; 7. Axle mounting groove; 8. Drive shaft; 9. Driven gear; 10. Module housing; 11. Drive gear; 12. Drive linkage groove. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] See attached document Figure 1-3 A replaceable lightweight drive module chassis includes a chassis and a drive module. The drive module is disposed on the upper end of the chassis. The chassis includes an integrally formed base plate 1 and four wheel hub mounting plates 2. The four wheel hub mounting plates 2 are connected to the base plate 1 by an arc transition. A baffle 3 is also provided on the outer side of the wheel hub mounting plate 2. A wheel axle positioning sleeve 4 is also provided at the lower end of the wheel hub mounting plate 2. The drive module includes a module housing 10, a wheel hub motor 5, and a battery pack 6.

[0021] The base plate 1 and the wheel hub mounting plate 2 are manufactured using an integrated molding process. The four wheel hub mounting plates 2 are connected to the base plate 1 by a rounded transition, which not only enhances the connection strength between the base plate and the wheel hub mounting plate in terms of structure, but also creates a lightweight structure without any unnecessary redundancy, which greatly reduces the overall weight of the chassis and meets the lightweight requirements of electric wheelchairs.

[0022] The baffle 3 is fixed to the outside of the hub mounting plate 2, forming a protective space for transmission components such as wheel axles and gears. It can block the intrusion of external dust, debris and small obstacles, prevent the transmission system from jamming and wearing due to foreign object interference, and extend the service life of the components.

[0023] The wheel axle positioning sleeve 4 is integrally formed on the lower end of the wheel hub mounting plate 2. The wheel axle mounting groove 7 is opened at the lower end of the base plate 1 near the wheel hub mounting plate 2, and the wheel axle positioning sleeve 4 is located at both ends of the wheel axle mounting groove 7. The wheel axle mounting groove 7 provides embedded space for the arrangement of the drive shaft 8, and the wheel axle positioning sleeve 4 achieves dual axial and radial positioning of the drive shaft 8, ensuring that the drive shaft does not shift or shake during rotation, and improving the stability of power transmission.

[0024] The module housing 10 is an integrated shell for the drive module, which integrates the hub motor 5 and the battery pack 6 inside, and is connected to the base plate 1 at the bottom.

[0025] The drive end of the hub motor 5 is equipped with a drive gear 11, and the drive gear 11 is completely aligned with the axial direction of the drive shaft 8. The drive shaft 8 is installed in the wheel axle positioning sleeve 4, and the driven gear 9 is fixedly connected to the drive shaft 8 near the drive module. The drive gear 11 and the driven gear 9 mesh precisely to form a gear pair transmission method, which can stably and efficiently transmit the power of the hub motor 5 to the drive shaft. At the same time, the rigid meshing of the gears reduces power loss and ensures the consistency of power output during equipment operation.

[0026] The battery pack 6 is located at the rear end of the base plate 1 and is detachably connected to the module housing 10, which allows the battery pack 6 to be quickly replaced according to task requirements. Faulty batteries can be directly replaced, which improves maintenance efficiency and enhances the chassis's adaptability to different working conditions.

[0027] A drive linkage groove 12 is provided on the module housing 10, and the lower end of the drive linkage groove 12 passes through the module housing 10 and the base plate 1 respectively. The groove provides clearance and positioning space for the meshing area of ​​the driving gear 11 and the driven gear 9, ensuring that the gear pair can be accurately aligned when the drive module is installed, and avoiding transmission jamming or gear wear caused by installation deviation.

[0028] In summary, this replaceable lightweight drive module chassis achieves a harmonious balance between lightweight design and structural strength through the integrated arc transition design of the base plate 1 and the hub mounting plate 2. The baffle 3 on the outer side of the hub mounting plate 2, the axle positioning sleeve 4 at the lower end, and the axle mounting groove 7 on the base plate 1 respectively construct the protective space for the transmission components and the positioning system for the drive shaft. The drive module uses the module housing 10 as the integrated carrier, and the driving gear 11 of the internal hub motor 5 precisely meshes with the driven gear 9 of the drive shaft 8 to ensure stable power transmission. The detachable connection between the battery pack 6 and the module housing 10, and the spatial adaptation of the drive linkage groove 12, not only enable convenient battery replacement but also ensure the replaceability of the module. The overall structure has significant advantages in terms of lightweight design, transmission stability, and modular operation and maintenance efficiency, providing an efficient and reliable integrated solution for electric wheelchairs.

[0029] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A replaceable lightweight drive module chassis, comprising a chassis and a drive module, characterized in that: The drive module is located on the upper part of the chassis. The chassis includes an integrally formed base plate (1) and four wheel hub mounting plates (2). The four wheel hub mounting plates (2) are connected to the base plate (1) in an arc transition. A baffle (3) is also provided on the outer side of the wheel hub mounting plate (2). A wheel axle positioning sleeve (4) is also provided at the lower end of the wheel hub mounting plate (2). The drive module includes a module housing (10), a wheel hub motor (5), and a battery pack (6).

2. The replaceable lightweight drive module chassis according to claim 1, characterized in that: The bottom plate (1) has an axle mounting groove (7) at the lower end near the hub mounting plate (2), and the axle positioning sleeve (4) is located at both ends of the axle mounting groove (7).

3. The replaceable lightweight drive module chassis according to claim 1, characterized in that: The wheel axle positioning sleeve (4) is provided with a drive shaft (8), and a driven gear (9) is provided on the drive shaft (8) near the lower end of the drive module.

4. The replaceable lightweight drive module chassis according to claim 3, characterized in that: The hub motor (5) is located inside the module housing (10), and its drive end is provided with a drive gear (11) which is axially aligned with the drive shaft (8). The drive gear (11) meshes with the driven gear (9).

5. The replaceable lightweight drive module chassis according to claim 1, characterized in that: The battery pack (6) is located at the rear end of the base plate (1), and the battery pack (6) is detachably connected to the module housing (10).

6. The replaceable lightweight drive module chassis according to claim 1, characterized in that: The module housing (10) is provided with a drive linkage groove (12), and the lower end of the drive linkage groove (12) passes through the module housing (10) and the base plate (1).

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