Driving wheel and camping car

Abstract

The driving wheel comprises an axle, a wheel body and a driving assembly, and is characterized in that the wheel body is of a hollow structure, the wheel body is rotatably arranged on the axle, the driving assembly comprises a shell, a motor and a transmission mechanism, the shell is fixedly arranged on the axle and located in the wheel body, the motor is fixedly arranged in the shell and is in transmission connection with the wheel body through the transmission mechanism, and the transmission mechanism is arranged on the wheel body. The output shaft of the motor is perpendicular to the wheel shaft, so that the space occupied by the motor can be reduced, and the utilization rate of the space is improved.

Description

Technical Field

[0001] The utility model relates to the field of camping vehicles, in particular to a driving wheel of a camping vehicle. Background Art

[0002] A Chinese patent document with publication number CN116834886A discloses a wheel hub-driven integrated wheel for children's wheels, which is characterized in that: it includes a wheel hub and a gear box installed inside the wheel hub, and a tire is arranged on the outer periphery of the wheel hub; the gear box is snap-fitted to the wheel hub, thereby driving the integrated wheel to move; the gear box includes a gear box body, the gear box body includes a gear fixing upper cover and a gear fixing lower cover, an accommodating cavity is formed between the gear fixing upper cover and the gear fixing lower cover, and a gear transmission mechanism is installed in the accommodating cavity; a limiting groove is formed on the outer side of the gear fixing upper cover along the width direction of the integrated wheel, and a driving motor is installed in the limiting groove, wherein the driving motor is longitudinally installed in the limiting groove, and the driving shaft of the driving motor passes through the gear fixing upper cover to connect the gear, and the gear is connected to the gear transmission mechanism.

[0003] In the above scheme, the drive motor is longitudinally assembled in the limiting groove. In actual assembly, since the drive motor needs to have the power to drive the gear to rotate, this will make the main body of the drive motor larger. During installation, it is necessary to take into account the main body of the drive motor and use a larger wheel hub to install the motor. This will undoubtedly greatly increase the cost of assembly and fail to make better use of the remaining space in the wheel hub. Utility Model Content

[0004] The utility model aims to provide a driving wheel with reasonable structure and high space utilization.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A driving wheel comprises a wheel axle, a wheel body and a driving assembly, wherein the wheel body is a hollow structure, the wheel body can be rotatably arranged on the wheel axle, the driving assembly comprises a shell, a motor and a transmission mechanism, the shell is fixedly arranged on the wheel axle and located in the wheel body, the motor is fixedly arranged in the shell and is connected to the wheel body through the transmission mechanism, and the output shaft of the motor is arranged perpendicular to the wheel axle.

[0007] By adopting the above scheme, the shell is fixed on the wheel axle and located in the wheel body, and the motor is fixed in the shell and connected to the wheel body through a transmission mechanism. During installation, the motor and the transmission mechanism can be installed in the shell first, and then the shell is installed in the wheel body, which can facilitate the assembly of the product. The output shaft of the motor is arranged perpendicular to the wheel axle, so that the motor can be arranged in the shell, which reduces the space occupied by the motor, improves the utilization rate of the space, and can further facilitate the assembly of the product.

[0008] The transmission mechanism comprises a worm and a worm wheel. The worm is arranged on the output shaft of the motor, and the worm wheel is rotatably arranged in the housing and meshes with the worm.

[0009] By adopting the above scheme, the turbine can be driven to rotate by the worm arranged on the motor output shaft, so that the direction of the motor output shaft force can be conveniently changed through the cooperation of the worm and the turbine, and the turbine can also be made more stable when rotating.

[0010] The transmission mechanism also includes a first transition gear, a second transition gear, a third transition gear, a main gear and a transmission member. The first transition gear is coaxially arranged with the worm gear and connected to each other, the second transition gear is coaxially arranged with the third transition gear and connected to each other, the main gear is rotatably sleeved on the wheel axle, the first transition gear is meshed with the second transition gear, the third transition gear is meshed with the main gear, and the transmission member is connected between the main gear and the wheel body.

[0011] By adopting the above scheme, the first transition gear and the worm gear are coaxially arranged and connected to each other, the second transition gear and the third transition gear are coaxially arranged and connected to each other, and the main gear is rotatably sleeved on the wheel axle, the first transition gear is meshed with the second transition gear, and the third transition gear is meshed with the main gear, so that the transmission efficiency between the gears can be improved and the reliability can be ensured.

[0012] A clamping groove is formed at one end of the transmission member, and a clamping block which is clamped with the clamping groove is arranged on the wheel body.

[0013] By adopting the above solution, a slot is formed at one end of the transmission member, and a clamping block engaged with the slot is arranged on the wheel body. The cooperation between the slot and the clamping block can make the transmission member more convenient to assemble.

[0014] A receiving groove is formed at the other end of the transmission member, and the main gear is provided with a transition part located in the receiving groove. The fixed sleeve of the transition part is provided with a metal sleeve, and the metal sleeve is formed with a flat step surface. A cylindrical magnet is arranged between the receiving groove and the step surface. The fixed sleeve on the wheel shaft is provided with a positioning sleeve, and the positioning sleeve has a metal plate opposite to the end face of the main gear. The cylindrical magnet is located between the metal plate and the end face of the main gear, the end face of the cylindrical magnet is adsorbed by the metal plate, and the outer peripheral surface of the cylindrical magnet is adsorbed by the step surface. The groove wall of the receiving groove is formed with a plurality of arc-shaped recessed parts adapted to the cylindrical magnet. When the main gear rotates, the cylindrical magnet can be embedded in the arc-shaped recessed parts to realize the connection between the transition part and the transmission member.

[0015] By adopting the above scheme, when the main gear rotates, it will drive the metal sleeve and the positioning sleeve to rotate, and the cylindrical magnet adsorbed between the positioning sleeve and the metal sleeve will rotate with the metal sleeve to the arc-shaped recessed portion of the receiving groove, thereby clamping and driving the wheel body to rotate. The receiving groove of the transmission part can facilitate the installation of the main gear, and through the cooperation of the main gear, cylindrical magnet, metal sleeve, metal plate and receiving groove, the wheel body can rotate under the drive of the motor.

[0016] The shell includes a first side plate, a second side plate and an annular outer plate, the first side plate and the second side plate are arranged in parallel and spaced apart, the annular outer plate is connected between the outer edges of the first side plate and the second side plate, the first side plate and the annular outer plate are integrally formed, the first side plate is formed with a first avoidance hole for the wheel axle to pass through, the second side plate is formed with a second avoidance hole for the transmission member to pass through, the second side plate is locked and connected to the first side plate by a fastener, the motor and the transmission mechanism are arranged in the shell, a first pivot shaft for supporting the worm gear and a second pivot shaft for supporting the second transition gear and the third transition gear are arranged between the first side plate and the second side plate, the first side plate and the second side plate are respectively formed with a first plugging hole and a second plugging hole for the first pivot shaft and the second pivot shaft to be plugged in.

[0017] By adopting the above scheme, a first avoidance hole for the wheel axle to pass through is formed on the first side plate, and a second avoidance hole for the transmission member to pass through is formed on the second side plate. A first pivot shaft for supporting the worm gear and a second pivot shaft for supporting the second transition gear and the third transition gear are arranged between the first side plate and the second side plate. Plug holes for the first pivot shaft and the second pivot shaft to be plugged into are distributed on the first side plate and the second side plate, and the second side plate is locked and connected to the first side plate by fasteners, which makes assembly more convenient.

[0018] The wheel body includes two half wheel bodies, which are buckled relative to each other and locked by fasteners to form a wheel body. The half wheel body includes a circular panel and an annular peripheral panel. One side edge of the peripheral panel is connected to the outer peripheral edge of the circular panel. The circular panel and the peripheral panel are integrally formed, and the center of the circular panel is rotatably connected to the wheel axle through a bearing.

[0019] By adopting the above solution, during assembly, the housing is installed into the half wheel body through the wheel axle, and then the two half wheel bodies are buckled together and locked by fasteners, which makes assembly convenient.

[0020] The wheel shaft is formed with a wire passing hole which penetrates in the axial direction, and the outer peripheral surface of the wheel shaft is formed with a wire passing hole which communicates with the housing.

[0021] By adopting the above solution, a threading hole and a wire passing hole are formed on the wheel axle, which can facilitate the connection of the motor circuit and make the internal circuit layout more reasonable.

[0022] A connecting plate is fixedly arranged on the wheel axle, and a groove matching with the connecting plate is formed on the shell. The connecting plate is embedded in the groove and fixedly connected with the shell through a fastener.

[0023] By adopting the above solution, a groove matched with the connecting plate is formed in the shell, which can facilitate the installation of the connecting plate, and the connecting plate is fixedly connected to the axle, which can further improve the stability of the axle.

[0024] A camping vehicle, characterized by comprising the above-mentioned driving wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the utility model.

[0026] Figure 2 It is an exploded view of the utility model.

[0027] Figure 3 This is an exploded view from another perspective of the present invention.

[0028] Figure 4 It is a front view of the utility model.

[0029] Figure 5 for Figure 4 Section view along AA direction.

[0030] Figure 6 This is a view of the utility model after the front view is rotated 90°.

[0031] Figure 7 for Figure 6 Cross-sectional view along BB direction.

[0032] Figure 8 It is a cross-sectional view of a cylindrical magnet clamping an arc-shaped recessed portion.

[0033] Fig. 9 A three-dimensional diagram of some drive components.

[0034] Fig.10 This is an exploded view of the transmission parts and some related components.

[0035] Fig.11 This is an exploded view of the transmission parts and some related components from another perspective. DETAILED DESCRIPTION

[0036] Reference Figures 1 to 11 A driving wheel that can be used for a camper is shown in the following. The technical solution of the utility model is further described through specific embodiments and in conjunction with the accompanying drawings of the specification:

[0037] A driving wheel comprises a wheel body 1, a wheel axle 2 and a driving assembly 3.

[0038] The wheel body 1 includes two half wheel bodies, which are buckled relative to each other and locked by fasteners to form the wheel body 1. The half wheel body includes two circular panels 11 and an annular peripheral panel 12. One side edge of the peripheral panel 12 is connected to the outer peripheral edge of the two circular panels 11, and the wheel body 1 is a hollow structure. The two circular panels 11 and the peripheral panel 12 are integrally formed. A clearance hole 13 is formed in the center of the two circular panels 11, and a bearing 14 is arranged in the clearance hole 13. The wheel body 1 is rotatably connected to the wheel axle 2 through the bearing 14.

[0039] The driving assembly 3 includes a shell 31, a motor 32 and a transmission mechanism 33. The shell 31 is fixedly arranged on the wheel axle 2 and is located in the wheel body 1. The wheel axle 2 is formed with a wire hole 21 that penetrates along the axial direction, and the outer peripheral surface of the wheel axle 2 is formed with a threading hole 22 that is connected to the shell 31. The connection line of the motor 32 can pass through the threading hole 22 and the wire hole 21, which can facilitate the connection of the motor 32 line and make the internal line layout more reasonable. The shell 31 includes an annular outer plate 311, a first side plate 312 and a second side plate 313. The first side plate 312 and the second side plate 313 are arranged in parallel and spaced apart. The annular outer plate 311 is connected between the outer edges of the first side plate 312 and the second side plate 313. The first side plate 312 and the annular outer plate 311 are integrally formed. The first side plate 312 is formed with a first avoidance hole 314 for the wheel axle 2 to pass through, and the second side plate 313 is locked with the first side plate 312 by bolts. The wheel axle 2 is connected with a connecting plate 23, and the connecting plate 23 is integrally formed with the wheel axle 2. The connecting plate 23 is fixed to a groove 316 on the end surface of the first side plate 312 by bolts and matched with the connecting plate 23. The groove 316 can play a role of positioning during installation and making the wheel axle 2 more stable during use, making the installation of the wheel axle 2 more convenient. The end surface of the second side plate 313 is formed with a second avoidance hole 315 for the transmission mechanism 33 to pass through, and the motor 32 and the transmission mechanism 33 are arranged in the housing 31. A first pivot shaft 338 for supporting the worm gear 332 and a second pivot shaft 339 for supporting the second transition gear 334 and the third transition gear 335 are arranged between the first side plate 312 and the second side plate 313. The first side plate 312 and the second side plate 313 are respectively formed with a first plug-in hole a1 and a second plug-in hole a2 for the first pivot shaft 338 and the second pivot shaft 339 to be plugged in.

[0040] The motor 32 is fixedly arranged on a fixing groove 317 on the first side plate 312 which is adapted to the motor 32, and is connected to the wheel body 1 through a transmission mechanism 33. The output shaft 321 of the motor 32 is arranged perpendicular to the wheel axle 2, so that the motor 32 can be arranged horizontally in the housing 31, reducing the space occupied by the motor 32.

[0041] The transmission mechanism 33 includes a worm 331, a worm wheel 332, a first transition gear 333, a second transition gear 334, a third transition gear 335, a main gear 336 and a transmission member 4. The worm 331 is arranged on the output shaft 321 of the motor 32. The worm wheel 332 is rotatably arranged in the housing 31 and meshes with the worm 331. In this way, the worm 331 arranged on the output shaft 321 of the motor 32 can drive the turbine 332 to rotate. Through the cooperation of the worm 331 and the turbine 332, it is convenient to change the direction of the force of the output shaft 321 of the motor 32, and the turbine 332 can also be made more stable when rotating. The first transition gear 333 and the worm wheel The first and second transition gears 333 and 334 are coaxially arranged and connected to each other, the second transition gear 334 and the third transition gear 335 are coaxially arranged and connected to each other, the main gear 336 is rotatably sleeved on the wheel shaft 2, the first transition gear 333 is meshed with the second transition gear 334, and the third transition gear 335 is meshed with the main gear 336, which can improve the transmission efficiency between the gears and ensure reliability. The transmission member 4 is connected between the main gear 336 and the wheel body 1, and a groove 41 composed of a protrusion 40 is formed at one end of the transmission member 4. A block 15 engaged with the groove 41 is provided on the wheel body 1. Through the cooperation between the groove 41 and the block 15, the transmission member 4 can be assembled. More conveniently, a receiving groove 42 is formed at the other end of the transmission member 4, and the main gear 336 is provided with a transfer portion 337 located in the receiving groove 42. The transfer portion 337 is fixedly sleeved with a metal sleeve 43, and the metal sleeve 43 is formed with a flat step surface 431. A cylindrical magnet 44 is arranged between the receiving groove 42 and the step surface 431. A positioning sleeve 24 is also fixedly sleeved on the axle 2. The positioning sleeve 24 has a metal plate 241 and a limiting protrusion 242 opposite to the end surface of the main gear 336. A through hole 45 is formed on the transmission member 4 for the limiting protrusion 242 to pass through. A limiting groove 243 is formed in the through hole 45, and the limiting groove 243 can be arranged with a metal plate 241 and a limiting protrusion 242 arranged on the housing 3. The limit block 20 on 1 cooperates to limit the rotation of the positioning sleeve 24, the cylindrical magnet 44 is located between the metal plate 241 and the end face of the main gear 336, the end face of the cylindrical magnet 44 is adsorbed by the metal plate 241, the outer circumferential surface of the cylindrical magnet 44 is adsorbed by the step surface 431, and the groove wall of the receiving groove 42 is formed with a plurality of arc-shaped recessed portions 421 adapted to the cylindrical magnet 44. When the main gear 336 rotates, it will drive the metal sleeve 43 to rotate, and the cylindrical magnet 44 adsorbed between the positioning sleeve 24 and the metal sleeve 43 will rotate with the metal sleeve 43 to the arc-shaped recessed portion 421 of the receiving groove 42, thereby being stuck and driving the wheel body 1 to rotate.

[0042] During assembly, the wheel axle 2 can be first passed through the first avoidance hole 314 of the annular outer plate 311, and the wheel axle 2 can be fixed to the annular outer plate 311 through the connecting plate 23. Then, the worm gear 332 and the first transition gear 333 located on the same axis can be matched with the first plug hole a1 through the first pivot shaft 338 so that the worm gear 332 and the first transition gear 333 are fixed to the first side plate 312. The second transition gear 334 and the third transition gear 335 located on the same axis can be matched with the second plug hole a2 through the second pivot shaft 339 so that the second transition gear 334 and the third transition gear 335 are fixed to the first side plate 312. Then, the main gear 336 can be installed on the wheel axle 2 to mesh with the third transition gear 335. The motor 32 is vertically connected to the wheel axle 2. The wheel axle 2 is arranged in the fixed groove 317 and connected to the turbine 332 through the worm 331 arranged on the output shaft 321. The turbine 332 cooperates with the worm 331 arranged on the output shaft 321 of the motor 32. The metal sleeve 43 and the positioning sleeve 24 are arranged above the main gear 336 through the wheel axle 2 in sequence, and a cylindrical magnet 44 is arranged between the positioning sleeve 24 and the metal sleeve 43. The transmission member 4 is then sleeved on the main gear 336, and the first side plate 312 is buckled with the second side plate 313 and fixed with bolts. One end of the transmission member 4 with a slot 41 can pass through the second avoidance hole 315 of the second side plate 313, and cooperates with the block 15 formed on the wheel body 1 to make the housing 31 installed in the wheel body 1 more stably.

[0043] When in use, the driving wheel can be installed on a camping car, and the output shaft 321 of the motor 32 outputs power, and the worm 331 arranged on the output shaft 321 drives the turbine 332, so that the turbine 332 drives the first transition gear 333 arranged coaxially, and then the first transition gear 333 drives the second transition gear 334 and the third transition gear 335 arranged coaxially with the second transition gear 334, so that the third transition gear 335 drives the main gear 336 to rotate, and when the main gear 336 rotates, it drives the metal sleeve 43 to rotate, so that the cylindrical magnet 44 arranged between the metal sleeve 43 and the positioning sleeve 24 is driven by the metal sleeve 43 and the positioning sleeve 24 to rotate to the arc-shaped recessed portion 421 on the groove wall of the receiving groove 42 and get stuck, so as to drive the transmission member 4 to rotate, so that the transmission member 4 drives the wheel body 1 to rotate, so as to achieve the purpose of driving the wheel body 1 to rotate through the motor 32.

[0044] The above is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. A driving wheel, comprising a wheel axle, a wheel body and a driving assembly, characterized in that: The wheel body is a hollow structure and is rotatably arranged on the wheel axle. The driving assembly includes a shell, a motor and a transmission mechanism. The shell is fixedly arranged on the wheel axle and located in the wheel body. The motor is fixedly arranged in the shell and is connected to the wheel body through the transmission mechanism. The output shaft of the motor is arranged perpendicular to the wheel axle.

2. A driving wheel according to claim 1, characterized in that: The transmission mechanism comprises a worm and a worm wheel. The worm is arranged on the output shaft of the motor, and the worm wheel is rotatably arranged in the housing and meshes with the worm.

3. A driving wheel according to claim 2, characterized in that: The transmission mechanism also includes a first transition gear, a second transition gear, a third transition gear, a main gear and a transmission member. The first transition gear is coaxially arranged with the worm gear and connected to each other, the second transition gear is coaxially arranged with the third transition gear and connected to each other, the main gear is rotatably sleeved on the wheel axle, the first transition gear is meshed with the second transition gear, the third transition gear is meshed with the main gear, and the transmission member is connected between the main gear and the wheel body.

4. A driving wheel according to claim 3, characterized in that: A clamping groove is formed at one end of the transmission member, and a clamping block engaged with the clamping groove is arranged on the wheel body.

5. A driving wheel according to claim 3, characterized in that: A receiving groove is formed at the other end of the transmission member, and the main gear is provided with a transition part located in the receiving groove. The fixed sleeve of the transition part is provided with a metal sleeve, and the metal sleeve is formed with a flat step surface. A cylindrical magnet is arranged between the receiving groove and the step surface. The fixed sleeve on the wheel shaft is provided with a positioning sleeve, and the positioning sleeve has a metal plate opposite to the end face of the main gear. The cylindrical magnet is located between the metal plate and the end face of the main gear, the end face of the cylindrical magnet is adsorbed by the metal plate, and the outer peripheral surface of the cylindrical magnet is adsorbed by the step surface. The groove wall of the receiving groove is formed with a plurality of arc-shaped recessed parts adapted to the cylindrical magnet. When the main gear rotates, the cylindrical magnet can be embedded in the arc-shaped recessed parts to realize the connection between the transition part and the transmission member.

6. A driving wheel according to claim 3, characterized in that: The shell includes a first side plate, a second side plate and an annular outer plate, the first side plate and the second side plate are arranged in parallel and spaced apart, the annular outer plate is connected between the outer edges of the first side plate and the second side plate, the first side plate and the annular outer plate are integrally formed, the first side plate is formed with a first avoidance hole for the wheel axle to pass through, the second side plate is formed with a second avoidance hole for the transmission member to pass through, the second side plate is locked and connected to the first side plate by a fastener, the motor and the transmission mechanism are arranged in the shell, a first pivot shaft for supporting the worm gear and a second pivot shaft for supporting the second transition gear and the third transition gear are arranged between the first side plate and the second side plate, the first side plate and the second side plate are respectively formed with a first plugging hole and a second plugging hole for the first pivot shaft and the second pivot shaft to be plugged in.

7. A driving wheel according to any one of claims 1 to 5, characterized in that: The wheel body includes two half wheel bodies, which are buckled relative to each other and locked by fasteners to form a wheel body. The half wheel body includes a circular panel and an annular peripheral panel. One side edge of the peripheral panel is connected to the outer peripheral edge of the circular panel. The circular panel and the peripheral panel are integrally formed, and the center of the circular panel is rotatably connected to the wheel axle through a bearing.

8. A driving wheel according to any one of claims 1 to 5, characterized in that: The wheel shaft is formed with a wire passing hole which penetrates in the axial direction, and the outer peripheral surface of the wheel shaft is formed with a wire passing hole which communicates with the housing.

9. A driving wheel according to any one of claims 1 to 5, characterized in that: A connecting plate is fixedly arranged on the wheel axle, and a groove matching with the connecting plate is formed on the shell. The connecting plate is embedded in the groove and fixedly connected with the shell through a fastener.

10. A camping vehicle, characterized in that: Comprising the driving wheel as described in any one of claims 1 to 9.

Images