CN107415676A - Driving wheel and Segway Human Transporter - Google Patents

Abstract

The invention relates to a driving wheel and an electric scooter. Wherein, the driving wheel includes an annular wheel body, a first wheel cover, a second wheel cover, a motor, a first gear, a second gear, a third gear, a transmission shaft, a first small bearing, a second small bearing and a large bearing, and the annular The inner ring of the wheel body is provided with annular teeth and annular installation grooves, the first wheel cover and the second wheel cover are respectively arranged on the left and right sides of the annular wheel body, the large bearing is set in the annular installation groove, and the motor is installed in one of the wheels. On the cover, the first gear is installed on the output shaft of the motor, the second gear and the third gear are coaxially installed on the transmission shaft, the second gear meshes with the first gear, and the third gear meshes with the ring gear; the electric skateboard The car comprises a skateboard body, a front wheel and a rear wheel, and the rear wheel is the drive wheel of the above structure. The invention has the advantages of novel structure, beautiful appearance, strong ground grip and good stability, can realize non-resistance gliding in the state of no electricity, and can also maintain the stability of the vehicle body when driving on uneven road surfaces.

Description

Drive wheels and electric scooters

technical field

The invention relates to a driving wheel and an electric scooter with the driving wheel, and belongs to the technical field of electric leisure sports tools or electric vehicles.

Background technique

At present, the driving wheels used for tools such as electric scooters are all provided with shaft holes and wheel shafts at their centers. When in use, the wheel hub motors drive the wheel shafts to rotate, thereby causing the wheels to rotate. This kind of driving structure of the wheel is a fixed way that people have been accustomed to thinking for a long time. When it comes to the driving structure of the wheel, people will naturally think of it, and the only thing they think of is that the wheel is installed, positioned and driven through the axle in the center. If this stereotyped approach can be changed, it will definitely bring more innovations in the style, shape and performance of scooters and other tools, thus bringing an unprecedented new type of scooters to young people who like to be unconventional in today's society. A new experience of tools.

At the same time, the driving wheel design of the existing electric scooter is mostly directly connected to the motor and the rear wheel, and the rotation of the motor is used to drive the wheel to rotate. However, when the motor is in an unpowered state, it is difficult for the electric scooter to slide without electricity due to the resistance of the motor. , It is not conducive to the user to operate and use it as an ordinary scooter in the state of no electricity.

In addition, the movable caster design of the existing electric scooter can only swing at a certain angle in the horizontal direction, and cannot swing in the vertical direction. , causing the center of gravity of the human body to be unstable and affect the use effect. In severe cases, there may even be a rollover phenomenon, resulting in unsafe accidents such as human falls and ankle sprains.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, to provide a driving wheel and an electric scooter with novel structure, beautiful appearance, strong grip and good stability, and the electric scooter can realize Sliding without resistance, it can also maintain the stability of the car body when driving on uneven roads, and avoid rollover accidents caused by the imbalance of the center of gravity of the human body.

The purpose of the present invention is achieved through the following technical solutions:

A driving wheel, comprising an annular wheel body, a first wheel cover, a second wheel cover, a motor, a first gear, a second gear, a third gear, a transmission shaft, a first small bearing, a second small bearing and a large bearing, The inner ring of the annular wheel body is provided with annular teeth and annular mounting grooves distributed in the axial direction, the first wheel cover and the second wheel cover are respectively arranged on the left and right sides of the annular wheel body, and the large The bearing is set in the annular installation groove, the outer ring of the large bearing is fixedly installed on the annular wheel body, and the inner ring of the large bearing is fixedly installed on the first wheel cover and/or the second wheel cover The motor is installed on one of the wheel covers, the first gear is installed on the output shaft of the motor, the second gear and the third gear are coaxially installed on the transmission shaft, and the first The second gear is meshed with the first gear, the third gear is meshed with the ring gear, one end of the transmission shaft is installed on the first wheel cover by means of the first small bearing, and the transmission shaft The other end is installed on the second wheel cover by means of the second small bearing.

Further, it also includes a one-way bearing, the inner ring of the one-way bearing is fixedly installed on the transmission shaft, and the outer ring of the one-way bearing is fixedly installed on the third gear.

Further, the first wheel cover and the second wheel cover are both provided with mounting brackets.

Further, it also includes a sleeve fitted on the transmission shaft, one end of the sleeve abuts against the end face of the second gear, and the other end abuts against the end face of the third gear; the first Both the gear and the third gear have a diameter smaller than that of the second gear.

Further, both the first wheel cover and the second wheel cover are in a stepped ring shape, the first wheel cover is provided with a motor chamber and a first small bearing chamber, and the second wheel cover is provided with a second Two small bearing chambers.

An electric scooter, comprising a skateboard body, a front wheel and a rear wheel, the rear wheel is a drive wheel of the above structure, the drive wheel is installed on the rear side of the skateboard body, the front wheel has two, which pass through A swing mechanism is mounted on the front side of the skateboard body.

Further, the swing mechanism includes a positioning shaft, a connecting plate, a swing arm, a lock nut, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, and the positioning shaft is arranged on the sliding plate The front end of the main body, the connecting plate, the swing arm and the lock nut are sequentially set on the positioning shaft from the inside to the outside, and one end of the first connecting rod and the second connecting rod are respectively connected to the two ends of the connecting plate through the horizontal The hinge shaft is hinged, and the other ends of the first connecting rod and the second connecting rod are respectively hinged with one end of the third connecting rod and the fourth connecting rod through the first vertical hinge shaft, and the third connecting rod and the fourth connecting rod The other end of the rod is respectively hinged with the two ends of the swing arm through the second vertical hinge shaft, and the third connecting rod and the fourth connecting rod are respectively fixedly connected with the corresponding front wheels.

Further, one end of the third connecting rod and the fourth connecting rod hinged to the swing arm is respectively provided with a connecting shaft, and the front wheel is provided with a fixing bracket with a connecting hole, and the connecting shaft is inserted into the corresponding In the connecting hole of the fixing frame on the front wheel and tightly fit with it.

Further, the front wheel includes an annular wheel shell, an annular frame, a bearing and a wheel cover plate, the annular frame is sleeved in the annular wheel shell, and the inner ring of the bearing is fixedly mounted on the annular frame, The outer ring of the bearing is fixedly installed on the annular wheel housing, the fixing frame with connecting holes is arranged on the annular frame, and the wheel cover plate is fixedly installed on the outside of the annular wheel housing by means of a snap spring.

Further, the tail of the skateboard body is also equipped with a fender located above the rear wheel, and brake pads are also provided on the rear wheel; the skateboard body includes a bottom shell and an upper cover, and the inside of the bottom shell A battery and a control board are installed, and the outer surface of the upper cover is provided with a non-slip pad.

Compared with the prior art, the present invention has the following beneficial effects:

First of all, the present invention provides a driving wheel with a brand new structure, which is different from the previous driving wheel in that it arranges the motor, transmission gear and transmission shaft at the lower end of the wheel body, making the wheel body look like a hollow wheel The same, not only the structure is novel, the shape is unique and beautiful, which can bring an unprecedented visual experience to the electric scooter equipped with the drive wheel, but also, because the center of gravity of the drive wheel is concentrated at the lower end of the wheel body, the grip is stronger and can Improve the stability of the driving wheel and the electric scooter equipped with the driving wheel.

Secondly, in the drive wheel provided by the present invention, a one-way bearing is connected between the transmission shaft and the transmission gear, so that the electric scooter can slide without resistance in the state of no electricity, so that the user can use it as a The utility model is used as an ordinary scooter, and has the advantages of reliable structure, strong practicability and the like.

Furthermore, the swingable wheel structure provided by the present invention can not only swing a certain angle in the horizontal direction, but also swing a certain angle in the vertical direction, so when it is applied to a scooter, it is beneficial to users on the one hand. Better control of the scooter body, ensuring the flexibility and fun of scooter use, and reducing the turning radius, etc. On the other hand, when the scooter is driving on uneven roads, the unevenness of the road will only make the wheels relative to The body of the scooter swings up and down, while the body of the scooter itself can always be kept in a horizontal state, thereby avoiding unbalanced center of gravity of the human body and adverse phenomena such as rollover, thereby improving the stability and safety of the scooter.

Description of drawings

Fig. 1 is an exploded schematic diagram of a driving wheel provided by the present invention.

Fig. 2 is a schematic perspective view of an electric scooter provided by the present invention.

Fig. 3 is an exploded schematic diagram of an electric scooter provided by the present invention.

detailed description

The present invention will be described in further detail below in conjunction with the embodiment given with accompanying drawing.

As shown in Figure 1, a driving wheel includes an annular wheel body 1, a first wheel cover 2, a second wheel cover 3, a motor 4, a first gear 5, a second gear 6, a third gear 7, and a transmission shaft 8 , the first small bearing 9, the second small bearing 10 and the large bearing 11, the outer ring of the annular wheel body 1 can be fitted with tires, and the inner ring of the annular wheel body 1 is provided with annular teeth 12 and annular mounting grooves 13 distributed axially , the first wheel cover 2 and the second wheel cover 3 are respectively arranged on the left and right sides of the annular wheel body 1, the large bearing 11 is set in the annular installation groove 13, and the outer ring of the large bearing 11 is fixedly installed on the annular wheel body 1 , the inner ring of the large bearing 11 is fixedly installed on the first wheel cover 2 and/or the second wheel cover 3, the motor 4 is installed on one of the wheel covers, the first gear 5 is installed on the output shaft of the motor 4, the second The gear 6 and the third gear 7 are coaxially installed on the transmission shaft 8, the second gear 6 is meshed with the first gear 5, the third gear 7 is meshed with the ring gear 12, and one end of the transmission shaft 8 is installed by means of the first small bearing 9 On the first wheel cover 2 , the other end of the drive shaft 8 is mounted on the second wheel cover 3 by means of the second small bearing 10 .

Further, it also includes a one-way bearing 14, the inner ring of the one-way bearing 14 is fixedly installed on the transmission shaft 8, and the outer ring of the one-way bearing 14 is fixedly installed on the third gear 7, preferably, a keyway tight fit can be used The way to realize the fixed installation of the one-way bearing 14 inner and outer rings. Since the one-way bearing 14 is provided, when the motor 4 rotates, the third gear 7 can only rotate in one fixed direction, thereby driving the annular wheel body 1 to rotate accordingly.

Preferably, the first wheel cover 2 and the second wheel cover 3 are provided with mounting brackets 20 and 30 respectively, so as to install the driving wheels on the vehicle body of tools such as electric scooters.

Preferably, it also includes a bushing 15 set on the transmission shaft 8, one end of the bushing 15 abuts against the end face of the second gear 6, and the other end abuts against the end face of the third gear 7, whereby the second gear 6 and the axial position of the third gear 7 are limited. Moreover, the diameters of the first gear 5 and the third gear 7 are both smaller than the diameter of the second gear 6, thereby optimizing the rotational speed of the driving wheel.

Preferably, both the first wheel cover 2 and the second wheel cover 3 are in the shape of a stepped ring. The first wheel cover 2 is provided with a motor cavity 21 and a first small bearing cavity 22 for accommodating the motor 4 and the first small bearing 9 respectively; the second wheel cover 3 is provided with a second small bearing cavity, It is used to accommodate the second small bearing 10 .

As shown in Fig. 2 and Fig. 3, an electric scooter comprises a skateboard body 100, a front wheel 101 and a rear wheel 102, wherein the rear wheel 102 is a drive wheel of the above-mentioned structure, and the drive wheel is installed on the back of the skateboard body 100 When specifically installing, it can be installed to the tail end of the skateboard body 100 by means of the mounting brackets 20, 30 on the first wheel cover 2 and the second wheel cover 3 in the driving wheel. There are two front wheels 101, which are installed on the front side of the skateboard body 100 through a swing mechanism 103.

Further, the swing mechanism 103 includes a positioning shaft 1031 , a connecting plate 1032 , a swing arm 1033 , a locking nut 103 a , a first connecting rod 1034 , a second connecting rod 1035 , a third connecting rod 1036 and a fourth connecting rod 1037 . The positioning shaft 1031 is arranged on the front end of the skateboard body 100, and the connecting plate 1032, the swing arm 1033 and the lock nut 103a are sequentially fitted on the positioning shaft 1031 from the inside to the outside, wherein the sleeve hole on the connecting plate 1032 matches the keyway of the positioning shaft 1031, and the rocker arm The sleeve hole on 1033 is in clearance fit with the positioning shaft 1031, so the rocker arm can rotate relative to the positioning shaft, and the locking nut 103a is used to prevent the swing arm 1033 and the connecting plate 1032 from coming out axially. One end of the first connecting rod 1034 and the second connecting rod 1035 are respectively hinged to two ends of the connecting plate 1032 through the horizontal hinge shaft 1030 , so that the first connecting rod 1034 and the second connecting rod 1035 can vertically swing relative to the connecting plate 1032 . The other ends of the first connecting rod 1034 and the second connecting rod 1035 are respectively hinged with one end of the third connecting rod 1036 and the fourth connecting rod 1037 through the first vertical hinge shaft 1038, and the other ends of the third connecting rod 1036 and the fourth connecting rod 1037 are The two ends of the swing arm 1033 are respectively hinged through the second vertical hinge shaft 1039, so that the third link 1036 and the fourth link 1037 can swing in the horizontal direction. The third connecting rod 1036 and the fourth connecting rod 1037 are respectively fixedly connected with the corresponding front wheels 101, so that the front wheels 101 can swing in the horizontal direction and the vertical direction under the action of the swing mechanism.

Preferably, one end hinged with the swing arm 1033 on the third link 1036 and the fourth link 1037 is also provided with a connecting shaft 105 respectively, and the front wheel 101 is provided with a fixed frame 106 with a connecting hole 1060, and the connecting shaft 105 is inserted into the corresponding In the connection hole 1060 of the fixed mount 106 on the front wheel 101 and tightly matched with it.

Preferably, the front wheel 101 includes an annular wheel shell 1011, an annular frame 1012, a bearing 1013 and a wheel cover plate 1014, the annular frame 1012 is sleeved in the annular wheel shell 1011, the inner ring of the bearing 1013 is fixedly installed on the annular frame 1012, and the bearing The outer ring of 1013 is fixedly installed on the annular wheel shell 1011, the fixed frame 106 with the connecting hole 1060 is arranged on the annular frame 1012, and the wheel cover plate 1014 is fixedly installed on the outside of the annular wheel shell 1011 by means of the snap spring 1015.

Preferably, a fender 104 located above the rear wheel 102 is installed at the tail of the skateboard body 100 , and the rear wheel 102 is also provided with brake pads. Meanwhile, the skateboard body 100 includes a bottom case 1001 and an upper cover 1002 , a battery and a control board are installed in the bottom case 1001 , and an anti-slip pad 1003 is provided on the outer surface of the upper cover 1002 .

The above are only preferred embodiments of the present invention, and should not limit the scope of the present invention with this, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the description of the invention are all Still belong to the scope that the patent of the present invention covers.

Claims (10)

1. A drive wheel, characterized in that: comprising an annular wheel body, a first wheel cover, a second wheel cover, a motor, a first gear, a second gear, a third gear, a drive shaft, a first small bearing, a second Small bearings and large bearings, the inner ring of the annular wheel body is provided with annular teeth and annular installation grooves distributed along the axial direction, the first wheel cover and the second wheel cover are respectively arranged on the left and right sides of the annular wheel body On both sides, the large bearing is sleeved in the annular installation groove, the outer ring of the large bearing is fixedly installed on the annular wheel body, and the inner ring of the large bearing is fixedly installed on the first wheel cover and /or on the second wheel cover, the motor is installed on one of the wheel covers, the first gear is installed on the output shaft of the motor, and the second gear and the third gear are coaxially installed on the transmission On the shaft, the second gear meshes with the first gear, the third gear meshes with the ring gear, and one end of the transmission shaft is mounted on the first wheel cover by means of the first small bearing The other end of the transmission shaft is mounted on the second wheel cover by means of the second small bearing. 2. A driving wheel according to claim 1, characterized in that: it also includes a one-way bearing, the inner ring of the one-way bearing is fixedly installed on the transmission shaft, and the outer ring of the one-way bearing is fixedly installed on the the third gear. 3. A driving wheel according to claim 2, characterized in that: both the first wheel cover and the second wheel cover are provided with mounting brackets. 4. A driving wheel according to claim 1, 2 or 3, characterized in that it further comprises a bushing fitted on the drive shaft, one end of the bushing abuts against the end face of the second gear The other end is against the end face of the third gear; the diameters of the first gear and the third gear are both smaller than the diameter of the second gear. 5. A driving wheel according to claim 1, 2 or 3, characterized in that: both the first wheel cover and the second wheel cover are in the shape of a stepped ring, and the first wheel cover is provided with a motor capacitor cavity and a first small bearing cavity, and the second wheel cover is provided with a second small bearing cavity. 6. An electric scooter, comprising a skateboard body, a front wheel and a rear wheel, characterized in that: the rear wheel is the driving wheel according to any one of claims 1-5, and the driving wheel is mounted on the skateboard On the rear side of the body, the front wheel has two, which are installed on the front side of the skateboard body through a swing mechanism. 7. An electric scooter according to claim 6, characterized in that: the swing mechanism includes a positioning shaft, a connecting plate, a swing arm, a lock nut, a first connecting rod, a second connecting rod, a third connecting rod rod and the fourth connecting rod, the positioning shaft is arranged at the front end of the skateboard body, the connecting plate, swing arm and lock nut are sequentially sleeved on the positioning shaft from inside to outside, the first connecting rod and One end of the second connecting rod is respectively hinged with both ends of the connecting plate through a horizontal hinge shaft, and the other ends of the first connecting rod and the second connecting rod are respectively connected with one end of the third connecting rod and the fourth connecting rod through a first connecting rod. The other ends of the third connecting rod and the fourth connecting rod are respectively hinged with the two ends of the swing arm through the second vertical hinge shaft, and the third connecting rod and the fourth connecting rod are respectively It is fixedly connected with the corresponding front wheel. 8. An electric scooter according to claim 7, characterized in that: one end of the third connecting rod and the fourth connecting rod hinged to the swing arm are respectively provided with a connecting shaft, and the front wheel A fixed frame with a connecting hole is arranged on the top, and the connecting shaft is inserted into the connecting hole of the fixed frame on the corresponding front wheel and closely matched with it. 9. An electric scooter according to claim 8, wherein the front wheel comprises an annular wheel housing, an annular frame, a bearing and a wheel cover, and the annular frame is sleeved in the annular wheel housing , the inner ring of the bearing is fixedly installed on the annular frame, the outer ring of the bearing is fixedly installed on the annular wheel shell, the fixing frame with connecting holes is arranged on the annular frame, the The wheel cover plate is fixedly installed on the outer side of the annular wheel housing by means of a clip spring. 10. A kind of electric scooter according to claim 6 or 7 or 8 or 9, characterized in that: the tail of the skateboard body is also equipped with a fender above the rear wheel, on the rear wheel Brake pads are also provided; the skateboard body includes a bottom case and an upper cover, a battery and a control board are installed in the bottom case, and an anti-skid pad is provided on the outer surface of the upper cover.