A motor integrating sweeping and vehicle walking assist hub
By integrating a sweeping brush and a vehicle walking assist hub into a high-efficiency external rotor motor design, the problems of single motor function and unstable connection in traditional equipment are solved, realizing the miniaturization, lightweighting and efficient collaborative operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI YUMA POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-03
Smart Images

Figure CN224451484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor applications, specifically a motor that integrates sweeping and vehicle walking assistance hubs. Background Technology
[0002] In the field of sweeping equipment and vehicle mobility assistance devices, traditional motors have relatively limited functions, used only to drive a single actuator, such as driving a sweeping brush alone or serving as a standalone power source for vehicle mobility assistance. This results in complex overall equipment structures, redundant components, high installation and maintenance costs, space occupation in vehicles, and low efficiency in the coordinated operation of various components, making it difficult to meet the development needs of modern integrated and high-efficiency equipment. Furthermore, the connection structure between existing motors and components such as sweeping brushes and mobility assistance hubs lacks stability, making them prone to loosening and malfunction under long-term complex operating conditions, affecting the cleaning effect and mobility assistance performance of the equipment. Therefore, an integrated, highly adaptable, and stable motor is needed to solve these problems. Utility Model Content
[0003] Purpose of the utility model: To provide a motor that integrates sweeping and vehicle walking assistance hubs to solve the problems mentioned in the background art, and to achieve power integration, connection stability and convenient maintenance.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] External rotor motor body: It adopts a high-efficiency external rotor structure design and has two power output ends, which are used to drive the sweeping brush and the vehicle walking auxiliary wheel hub respectively.
[0006] Fixed shaft: Located on the top of the outer rotor motor body, used for connection and fixation to the vehicle body structure.
[0007] Locking mechanism: including round nut, anti-rotation washer and round nut, which are fitted on the outside of the fixed shaft and used to fix the outer rotor motor body to the vehicle body structure.
[0008] Key pin: Located on the fixed shaft, it cooperates with the anti-rotation washer to restrict the rotation of the locking mechanism.
[0009] Motor wiring harness: Used to connect the power supply and control signals of the external rotor motor body.
[0010] Internal magnets of the motor: These are located inside the main body of the external rotor motor and are used to generate a magnetic field.
[0011] The internal iron core stator of the motor is located inside the main body of the external rotor motor and works with the internal magnets to generate rotational force.
[0012] omnidirectional wheel assembly: used to provide auxiliary power for vehicle movement.
[0013] Motor shaft and universal wheel transition flange seat: connects the outer rotor motor body and the universal wheel assembly.
[0014] Flange seat locking screws: used to fix the motor shaft and the universal wheel transition flange seat.
[0015] Brush: Used for sweeping.
[0016] Motor and brush connection flange seat: connects the external rotor motor body and the brush.
[0017] Quick-release locking device for brush connecting flange seat: used for quick disassembly and installation of brushes.
[0018] Protective cover: Located on the outside of the flange seat connecting the motor and the brush, used to protect the connection parts.
[0019] Furthermore, the outer casing of the external rotor motor body is made of high-strength aluminum alloy material, which has good heat dissipation performance and impact resistance.
[0020] Furthermore, the anti-rotation washer is made of elastic material, which has a good anti-loosening effect.
[0021] Furthermore, the motor shaft and the universal wheel transition flange seat are precision machined to ensure coaxiality with the universal wheel assembly and reduce vibration and noise.
[0022] Furthermore, the quick-release locking device for the brush connecting flange seat adopts a snap-on or threaded structure, which is simple and quick to operate.
[0023] Furthermore, the protective cover is made of transparent material, making it easy to observe the working status of the brush.
[0024] Compared with the prior art, the beneficial effects of this utility model are:
[0025] The external rotor motor of this utility model integrates the sweeping brush drive and vehicle walking auxiliary wheel hub power output functions. Compared with the traditional separate power source, it greatly simplifies the equipment structure, reduces the number of parts, reduces the overall size and weight of the equipment, saves installation space, improves the integration of the equipment and space utilization, and is conducive to the miniaturization and lightweight development of the equipment.
[0026] Through the cooperation of fixed shaft, key pin, and locking mechanism, as well as the structural design of the connection parts between the motor and the universal wheel and brush, each connection node has strong stability and can effectively resist vibration and impact during equipment operation. This ensures long-term stable connection and power transmission between the motor and each actuator, reduces the occurrence of failures, and improves the reliability and service life of the equipment.
[0027] The external rotor motor can simultaneously and precisely drive the sweeping brush for cleaning and provide power to the vehicle's walking assistance wheel hub, realizing the coordinated operation of sweeping and walking assistance functions, improving the overall working efficiency of the equipment, and is suitable for sweeping vehicles and other equipment that have both sweeping and mobility needs, expanding the application scenarios of the motor and the practicality of the equipment's functions. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of this utility model.
[0029] Figure 2 This is a cross-sectional view of the present invention.
[0030] Figure 3 This is an exploded view of the present invention.
[0031] In the diagram: 1. External rotor motor body; 2. Fixed shaft; 3. Locking mechanism; 31. Round nut; 32. Anti-rotation washer; 4. Key pin; 5. Motor wiring harness; 6. Internal magnet of the motor; 7. Internal iron core stator of the motor; 8. Universal wheel assembly; 9. Transition flange seat between motor shaft and universal wheel; 10. Flange seat locking screw; 11. Brush; 12. Brush connecting flange seat; 13. Quick-release locking device for brush connecting flange seat; 14. Protective cover. Detailed Implementation
[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.
[0033] like Figure 1-3As shown, a motor integrating sweeping and vehicle walking assistance hubs includes an outer rotor motor body 1, with a fixed shaft 2 disposed on the top of the outer rotor motor body 1 for connection and fixation to the vehicle body structure. A locking mechanism 3 includes a round nut 31, an anti-rotation washer 32, and a round nut 31, fitted onto the outside of the fixed shaft 2 for fixing the outer rotor motor body 1 to the vehicle body structure. A key pin 4 is disposed on the fixed shaft 2 and cooperates with the anti-rotation washer 32 to restrict the rotation of the locking mechanism 3. A motor wiring harness 5 is used to connect the power supply and control signals of the outer rotor motor body 1. Internal magnets 6 and internal iron core stators 7 are disposed inside the outer rotor motor body 1 to generate rotational force. A caster wheel assembly 8 provides vehicle walking assistance power. A transition flange seat 9 connects the outer rotor motor body 1 and the caster wheel assembly 8, and is fixed by flange seat locking screws 10. A brush 11 is used for sweeping operations. The motor-brush connecting flange seat 12 connects the outer rotor motor body 1 and the brush 11, and quick disassembly and installation are achieved through the quick-release locking device 13 of the brush connecting flange seat. The protective cover 14 is set on the outside of the motor-brush 11 connecting flange seat to protect the connection parts.
[0034] Working principle:
[0035] When the motor wiring harness 5 is powered on, the internal magnets 6 and the internal iron core stator 7 of the motor generate rotational force, driving the outer rotor motor body 1 to rotate. The two power output ends of the outer rotor motor body 1 respectively drive the caster wheel assembly 8 and the brush 11 to work. The caster wheel assembly 8 provides auxiliary power for vehicle movement, and the brush 11 performs sweeping operations.
[0036] This invention is applied to a sweeping robot, in which the outer rotor motor body 1 is fixed to the robot body via a fixed shaft 2. When the sweeping robot is started, the outer rotor motor body 1 simultaneously drives the universal wheel assembly 8 and the brush 11 to work, realizing the dual functions of sweeping and moving.
[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A motor integrating sweeping and vehicle walking assist hubs, characterized in that: The main body of the external rotor motor has two power output ends, which are used to drive the sweeping brush and the vehicle's walking auxiliary wheel hub, respectively. A fixed shaft is located on the top of the outer rotor motor body and is used to connect and fix it to the vehicle body structure. The locking mechanism, including a round nut, an anti-rotation washer, and a round nut, is fitted onto the outside of the fixed shaft and is used to fix the outer rotor motor body to the vehicle body structure. A key pin, located on a fixed shaft, engages with an anti-rotation washer to restrict the rotation of the locking mechanism. The swivel wheel assembly is used to provide auxiliary power for vehicle movement.
2. The integrated floor sweeping and vehicle walking assist hub motor of claim 1, wherein: It also includes a transition flange seat for the motor shaft and the universal wheel, used to connect the outer rotor motor body and the universal wheel assembly.
3. The integrated floor sweeping and vehicle walking assist hub motor of claim 1, wherein: It also includes a brush for sweeping; a motor-brush connecting flange for connecting the outer rotor motor body and the brush; and a quick-release locking device for the brush connecting flange for quick disassembly and installation of the brush.
4. The integrated floor sweeping and vehicle walking assist hub motor of claim 3, wherein: The quick-release locking device for the brush connecting flange seat adopts a snap-on or threaded structure.
5. The integrated floor sweeping and vehicle walking assist hub motor of claim 1, wherein: The outer casing of the external rotor motor body is made of high-strength aluminum alloy.
6. The integrated sweeper and vehicle walk assist hub motor of claim 1, wherein, It also includes a protective cover, which is installed on the outside of the flange seat connecting the motor and the brush to protect the connection parts.