TWM534690U - Omnidirectional wheel structure of mobile carrier - Google Patents

Description

Moving vehicle omnidirectional wheel structure

This creative department is related to mobile loads, especially the omnidirectional wheel structure of a mobile vehicle.

Omnidirectional movement means the movement of the vehicle in any direction without changing the orientation of the vehicle. In order to achieve the effect of omnidirectional movement of the mobile vehicle, a plurality of omnidirectional wheels are usually mounted on the mobile vehicle to move the mobile vehicle on the ground with the omnidirectional wheel. Since the mobile vehicle equipped with the omnidirectional wheel has the advantages of flexible moving steering, and particularly horizontal lateral movement, it is suitable for places with small moving spaces, such as warehouses, factories, and the like. According to the investigation, the omnidirectional wheel has been applied in the fields of robots, wheelchairs, pushers and work platforms. The design of the omnidirectional wheel, such as the omnidirectional wheel provided by the Republic of China Application No. 095149454 and the vehicle carrier using the omnidirectional wheel, and the omnidirectional wheel and the whole of the omnidirectional wheel and the whole of the Republic of China application No. 100139926 To the wheel set.

Referring to FIG. 1, an omnidirectional wheel structure of a moving carrier is shown, which is mainly composed of a wheel 11 and a plurality of rollers 12 arranged obliquely with the axis 111 of the wheel 11, wherein each of the rollers 12 It is pivotally disposed on the circumferential side of the wheel 11, and the wheel surface 121 of each of the rollers 12 protrudes from the circumferential side of the wheel 11, thereby contacting the ground. When the moving carrier is configured with the omnidirectional wheel, two omnidirectional wheels are disposed at the bottom front drive shaft and the rear drive shaft at the bottom of the mobile vehicle, so that the overall configuration is like the wheel configuration of the conventional vehicle. However, it still has the following defects to be improved in actual use cases.

In the actual operation of the moving carrier equipped with the omnidirectional wheel, each omnidirectional wheel of the moving carrier must be additionally equipped with a motor (not shown) and the motor can be used to rotate the omnidirectional wheel at an appropriate speed. Match and forward and reverse controls to achieve omnidirectional movement. In this way, not only the production cost is increased, but also the space requirement for assembly is greatly increased.

Therefore, how to develop an omnidirectional wheel structure of a mobile vehicle, which can solve the above problem, that is, the motive for the creation of the case.

The purpose of the present invention is to provide an omnidirectional wheel structure for a mobile vehicle, which mainly reduces production cost and assembly space.

In order to achieve the foregoing objective, an omnidirectional wheel structure for a mobile vehicle according to the present invention includes: an axle; a bearing disposed on the axle and having a set of inner rings fixed to the axle and An outer ring pivotally disposed on the inner ring; a certain sub-magnet unit is sleeved on the axle, and has a magnetic pole arranged in a ring shape and NS-interleaved; a rotor coil unit including a coil base and a coil, the coil The seat has a coil ring portion fixed to each of the outer rings and spaced apart from the stator magnet unit, and two sets of ring portions respectively disposed at two ends of the coil ring portion, the coils being wound around the coil ring portion and Between the two sets of ring portions; an inner disc, sleeved on the axle and fixed to one of the coil portions of the coil base; an outer disc fixed to the coil base relative to the inner disc The other group is provided with a ring portion; a plurality of rollers can be pivotally connected between the inner and outer disks.

Preferably, a plurality of balls are disposed between the inner ring and the outer ring of each of the bearings.

Preferably, wherein the stator magnet unit is located between the two bearings.

Preferably, the axle has an axial line, and each of the rollers is obliquely arranged between the inner and outer disks.

Preferably, the set ring portions of the coil base each have an outwardly protruding ring card protrusion, the inner wheel and the outer wheel each have an inner disk surface, and each of the inner disk surfaces has a set of the inner disk surface. The card convex ring is concave.

Preferably, the outer rim has an outer disk surface, and the outer disk surface has an outer ring portion protruding away from the inner disk. The wheel shaft has an extension portion in the outer ring portion, and the extension portion locks There is an inherent disc, and the outer ring portion is provided with a disc caliper for braking the disc.

Accordingly, the present invention provides an omnidirectional wheel structure of a mobile vehicle, the omnidirectional wheel mainly having a stator magnet unit and a rotor coil unit therein, and the stator magnet unit is disposed on an axle, and the rotor coil unit is provided On the inner and outer discs, according to this, the inner and outer discs can be rotated relative to the axle after energization, so that the omnidirectional wheel can be rotated automatically in addition to the roller that can move freely in any direction. Therefore, it is not necessary to additionally provide a motor to drive the omnidirectional wheel, so that the creation does achieve the purpose of reducing production cost and assembling space.

With regard to the techniques, means, and other functions of the present invention for achieving the above objects, the preferred embodiments are described in detail with reference to the drawings.

Before the detailed description is made, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2 to FIG. 5, the omnidirectional wheel structure of a mobile vehicle provided by the first embodiment is mainly composed of an axle 20, two bearings 30, a certain sub-magnet unit 40, and a rotor coil unit. 50. An inner roulette 60 and an outer roulette 70, wherein:

The axle 20 has an axial centerline 21.

The bearing 30 is sleeved on the axle 20 and has a set of inner rings 31 fixed to the axle 20 and an outer ring 32 pivotally mounted on the inner ring 31. In this embodiment, each of the bearings 30 A plurality of balls 33 are disposed between the inner ring 31 and the outer ring 32 to pivot the outer ring 32 relative to the inner ring 31.

The stator magnet unit 40 is sheathed to the axle 20 and has magnetic poles 41 arranged in a ring shape and interlaced by N-S. In this embodiment, the stator magnet unit 40 is located between the two bearings 30.

The rotor coil unit 50 includes a coil base 51 and a coil 52. The coil base 51 has a coil ring portion 511 fixed to each of the outer rings 32 and spaced apart from the stator magnet unit 40, and two separate sets. A ring portion 512 is disposed at the two ends of the coil ring portion 511. The coil 52 is wound around the coil ring portion 511 and located between the two sets of ring portions 512. In this embodiment, the coil base 51 is formed with a ring. The portions 512 each have a ring-shaped protrusion 513 protruding outward.

The inner disc 60 is sleeved on the axle 20 and fixed to one of the coil portions 512 of the coil base 51. In the embodiment, the inner disc 60 has an inner disc surface 61, and the inner disc surface 61 has A ring sleeve 62 disposed in one of the loops 513 of the coil base 51; and the inner disc 60 is locked to one of the ring portions 512 of the coil base 51 by screws 91.

The outer wheel 70 is fixed to the other set of ring portions 512 of the coil base 51 with respect to the inner wheel disk 60, thereby being spaced apart from the inner wheel disk 60. In the embodiment, the outer wheel disk 70 also has a The inner disk surface 71 has a set of ring-shaped recesses 72 disposed on the coil holder 51 and the ring-shaped protrusions 513. The outer disk 70 is also locked to the coil base 51 by screws 91. One of the sets is provided on the ring portion 512.

The plurality of rollers 80 are pivotably disposed between the inner and outer disks 60, 70. In this embodiment, each of the rollers 80 is obliquely aligned with the axis line 21 of the axle 20 on the inner and outer disks. Between 60 and 70. Since the roller 80 is a conventional member and its actuation mode is the same as the conventional one, and is not the creative focus of the present invention, the detailed structure and operation mode of the component will not be described in detail.

The above description is the structure and configuration description of each main component of the first embodiment of the present invention. Accordingly, the manner in which this creation is performed is explained below.

Since the omnidirectional wheel is provided with the stator magnet unit 40 and the rotor coil unit 50 therein, and the stator magnet unit 40 is disposed on the axle 20, the rotor coil unit 50 is disposed on the inner and outer disks 60, 70, Therefore, after the energization, the inner and outer discs 60, 70 and the rollers 80 disposed thereon are rotated relative to the axle 20, so that the omnidirectional wheel is provided with a roller that can move freely in any direction. Moreover, it is more self-rotating, so there is no need to additionally provide a motor to drive the omnidirectional wheel, so that the creation does achieve the purpose of reducing production cost and assembling space.

Referring to FIG. 6, the omnidirectional wheel structure of a mobile vehicle provided by the second embodiment is also composed of an axle 20, two bearings 30, a certain sub-magnet unit 40, a rotor coil unit 50, and a The inner roulette 60 and the outer roulette 70 are composed. Since the configuration and the function are the same as those in the first embodiment, they will not be described again. The difference in the second embodiment lies in:

The outer disk 70 has an outer disk surface 73, and an outer ring portion 74 is protruded away from the inner disk 60. The wheel shaft 20 has an extension 22 in the range of the outer ring portion 74. The segment 22 is locked with a disk 92. The outer ring portion 74 is provided with a disk caliper 93 for braking the disk 92. In the embodiment, the disk 92 is locked to the axle 20 by a screw 91. An extension 22 is provided, and the disc caliper 93 has two calipers 931 that are close to or away from each other, and a brake space 932 is formed between the calipers 931 for the braking portion 921 of the disc 92, and the caliper The braking portion 921 facing the disk 92 has a command piece 933. By controlling the disk calipers 931 to be close to each other, the blade 933 is brought into contact with the braking portion 921 of the disk 92 to produce a braking effect.

In view of the above, the above embodiments and drawings are only preferred embodiments of the present invention, and should not be limited to the scope of the present invention, the equivalent changes and modifications according to the scope of the novel application should be It is within the scope of this new patent.

[study]
11‧‧‧ Roulette
111‧‧‧Axis line
12‧‧‧Roller
121‧‧‧90
13‧‧‧ Wheel body [this new type]
20‧‧‧Axle
21‧‧‧Axis line
22‧‧‧Extension
30‧‧‧ Bearing
31‧‧‧ Inner Ring
32‧‧‧Outer Ring
33‧‧‧ balls
40‧‧‧ Stator magnet unit
41‧‧‧ magnetic pole
50‧‧‧Rotor coil unit
51‧‧‧ coil holder
511‧‧‧ coil ring
512‧‧‧Set up the ring department
513‧‧‧ ring card convex
52‧‧‧ coil
60‧‧‧ inner roulette
61‧‧‧Inside disk
62‧‧‧ ring card concave
70‧‧‧Outer roulette
71‧‧‧Inside disk
72‧‧‧ ring card concave
73‧‧‧Outside disk
74‧‧‧Outer Rings
80‧‧‧Roller
91‧‧‧ screws
92‧‧‧disc
921‧‧‧ Brake
93‧‧‧Disc calipers
931‧‧‧ calipers
932‧‧‧Brake space
933‧‧‧来片

1 is a perspective view of an omnidirectional wheel structure of a conventional mobile vehicle. Figure 2 is a perspective view of the first embodiment of the present creation. Figure 3 is an exploded perspective view of the first embodiment of the present creation. Figure 4 is a perspective, cross-sectional view showing the first embodiment of the present creation. Figure 5 is a cross-sectional view showing the first embodiment of the present creation. Figure 6 is a cross-sectional view showing a second embodiment of the present creation.

20‧‧‧Axle

21‧‧‧Axis line

30‧‧‧ Bearing

31‧‧‧ Inner Ring

32‧‧‧Outer Ring

33‧‧‧ balls

40‧‧‧ Stator magnet unit

50‧‧‧Rotor coil unit

51‧‧‧ coil holder

511‧‧‧ coil ring

512‧‧‧Set up the ring department

52‧‧‧ coil

60‧‧‧ inner roulette

70‧‧‧Outer roulette

71‧‧‧Inside disk

80‧‧‧Roller

91‧‧‧ screws

Claims (6)

An omnidirectional wheel structure for a mobile vehicle, comprising: an axle; a bearing disposed on the axle and having a set of inner rings fixed to the axle and an outer ring pivoted on the inner ring; a magnet unit, which is sleeved on the axle and has magnetic poles arranged in a ring shape and interlaced by NS; a rotor coil unit including a coil base and a coil, the coil base having a set fixed to each of the outer rings and a coil ring portion at a distance from the stator magnet unit, and an assembly ring portion respectively disposed at two ends of the coil ring portion, the coil is wound around the coil ring portion and located between the two set ring portions; a disk, sleeved on the axle and fixed to one of the ring portions of the coil base; an outer disk fixed to the other set of ring portions of the coil base relative to the inner disk; a plurality of rollers capable of pivoting The ground ring is located between the inner and outer discs. The omnidirectional wheel structure of the mobile vehicle of claim 1, wherein a plurality of balls are disposed between the inner ring and the outer ring of each of the bearings. The omnidirectional wheel structure of the mobile carrier of claim 1, wherein the stator magnet unit is located between the two bearings. The omnidirectional wheel structure of the mobile vehicle of claim 1, wherein the axle has an axial line, and each of the roller lines and the axial line are obliquely arranged between the inner and outer disks. The omnidirectional wheel structure of the mobile vehicle of claim 1, wherein the set ring portions of the coil base each have an outwardly protruding ring card protrusion, the inner wheel and the outer wheel each having an inner disk surface, and Each of the inner disk faces has a set of ring-shaped recesses disposed on the ring. The omnidirectional wheel structure of the mobile vehicle of claim 1, wherein the outer disk has an outer disk surface, and the outer disk surface has an outer ring portion protruding away from the inner disk, the wheel shaft having a outer ring portion An extension in the range of the ring, the extension is locked with a disc, and the outer ring is provided with a disc caliper for braking the disc.