CN109263402B

CN109263402B - Driving wheel

Info

Publication number: CN109263402B
Application number: CN201811196237.6A
Authority: CN
Inventors: 李永建
Original assignee: Hangzhou Fuyang Xinyuan New Energy Co Ltd
Current assignee: Hangzhou Haozhi Technology Co ltd
Priority date: 2017-01-23
Filing date: 2017-01-23
Publication date: 2021-01-08
Anticipated expiration: 2037-01-23
Also published as: CN109263403B; CN109263403A; CN109263402A; CN106799931A; CN106799931B

Abstract

The invention belongs to the technical field of automobile drive axles, and particularly relates to a drive wheel which comprises a rubber ring, a telescopic outer sleeve, a telescopic inner rod, an elliptical track, a damping spring and a rotary connecting piece, wherein an automobile body is arranged on an automobile body support shaft sleeve through the damping spring, the telescopic inner rod, the telescopic outer sleeve and a support lug are driven by a drive shaft in the design of an elliptical wheel to drive the rubber ring to rotate elliptically, and the purpose of driving is achieved by the contact of the rubber ring and the ground. The track rotating shaft sleeve is connected with the vehicle body supporting shaft sleeve through the rotating connecting piece, so that the whole elliptical wheel can rotate relative to the vehicle body, the elliptical wheel can integrally adapt to the rotation of the ground terrain, the position of the elliptical wheel contacted with the ground can be ensured to be constant, and the strengthening design of the elliptical wheel frame is facilitated. Compared with the common round wheel, the elliptical wheel has the advantages that the circular arc at the contact position of the common round wheel and the ground can be very large, the overall height of the wheel can be very small, the requirement of a vehicle body is met, and most importantly, the frictional force between the elliptical wheel and the ground is larger than that of the common wheel, so that the elliptical wheel is more beneficial to braking and acceleration of a vehicle.

Description

Driving wheel

Technical Field

The invention belongs to the technical field of automobile drive axles, and particularly relates to a drive wheel.

Background

The wheels of the existing car all use pure round wheels, and the round wheels have simple structures and realize the function that the wheels can not be replaced. For cars, the larger the diameter and width of the wheel, the greater the static friction it can generate with the ground, and the greater the braking and acceleration performance. When the height of the automobile body is required to be small, the diameter of the wheels can be reduced and the width of the wheels can be increased, but the increase of the width of the wheels can occupy the transverse space of the automobile body, so that the riding space of a car can be greatly influenced or the normal design of the engine space can be disturbed, and therefore, the wheel which can reduce the height of the automobile body and has small width is needed to be designed.

The present invention is directed to a drive wheel that solves the above problems.

Disclosure of Invention

In order to solve the above defects in the prior art, the invention discloses a driving wheel, which is realized by adopting the following technical scheme.

A drive wheel characterized by: the vibration damping device comprises a back plate, side lugs, middle lugs, rubber rings, telescopic jackets, telescopic inner rods, elliptical tracks, balance wheels, a driving shaft, a vehicle body support plate, a vibration damping sleeve, a vibration damping spring, a vibration damping rod support, a rotary connecting piece, a vehicle body support shaft sleeve, a guide groove, a track rotating shaft sleeve, a middle lug support, a telescopic hole, a ring groove, an inner rod swing shaft, an inclined plane, a radial surface, swing holes and clamping holes, wherein a ring groove is formed in one end of the driving shaft, seven inner rod swing shafts are uniformly arranged on two groove walls of the ring groove in the circumferential direction, a telescopic inner rod is arranged on each inner rod swing shaft, telescopic holes are formed in the lower end of each telescopic jacket, each telescopic inner rod is sleeved into the corresponding telescopic hole of the telescopic jacket; the middle of the back plate is provided with a round hole and is arranged on the rail rotating shaft sleeve, the oval rail is arranged on the outer edge surface of the back plate, and the seven guide grooves are in sliding fit with the oval rail; the outer side of each guide groove is provided with a middle support lug through a middle support lug, seven middle support lugs are provided with the same elliptic rubber ring through side support lugs, and the middle support lugs and the corresponding side support lugs form hinges; seven teeth are uniformly arranged on the balance wheel, inclined planes are arranged on two sides of the tooth tip of each tooth, the inclined planes are provided with radial planes in the direction close to the circle center, and the radial planes which face to each other between the adjacent teeth are symmetrical; six tooth sockets in seven tooth sockets among the seven teeth are provided with swing holes, six telescopic inner rods in the seven telescopic inner rods penetrate through the corresponding swing holes, the cross section of each swing hole is square, the length of a long side of each swing hole is 1.5 times that of a long side of the cross section of each telescopic inner rod, and the length of a short side of the cross section of each swing hole is the same as that of a short side of the cross section of each telescopic inner rod; after six tooth sockets with the same swing hole are removed from the seven tooth sockets, the remaining tooth socket is provided with a clamping hole, the remaining telescopic inner rod penetrates through the clamping hole, and the size and the shape of the cross section of the clamping hole are completely the same as those of the cross section of the telescopic inner rod; the vehicle body supporting shaft sleeve is arranged on the track rotating shaft sleeve through a rotating connecting piece, the shock absorption rod support is arranged on the vehicle body supporting shaft sleeve, the shock absorption rod is arranged on the shock absorption rod support, the shock absorption sleeve is nested on the outer edge surface of the shock absorption rod, and the vehicle body supporting plate is arranged at the top end of the shock absorption sleeve; damping spring nests in the shock attenuation pole and the shock attenuation cover outside, and damping spring one end is connected at the automobile body extension board downside, and the other end is connected on the shock attenuation pole supports.

As a further improvement of the present technology, the above-mentioned rotary connector includes a retaining ring, an outer edge ring, a snap ring, and a top ring, wherein the snap ring is installed on the rail rotating shaft sleeve, the top ring is installed at one end of the vehicle body supporting shaft sleeve, the outer edge ring is installed on the outer edge surface of the top ring, the retaining ring is installed at one side of the outer edge ring, the snap ring is located between the top ring and the retaining ring, and both sides of the snap ring are in sliding contact with the top ring and the retaining ring respectively.

As a further improvement of the technology, one end of the vehicle body supporting shaft sleeve is provided with a fixed flange.

Compared with the traditional automobile drive axle technology, the design purpose of the elliptical wheel is that the larger the wheel is, the larger the friction force to the ground is when braking is carried out, the better the braking performance is, under the condition that the automobile shell structure requires lower automobile body height, the diameter of the common circular wheel is limited, and compared with the elliptical wheel, the circular arc at the contact part of the common circular wheel and the ground can be very large, namely the short diameter direction of the elliptical wheel is contacted with the ground, at the moment, because the short diameter is in the vertical direction, the overall height of the wheel is very small, the requirement of an automobile body is met, most importantly, the friction force with the ground is larger than that of the common wheel, and the braking and acceleration of the automobile are facilitated; the damping device comprises a damping spring, a damping sleeve, a damping rod, a damping sleeve and a damping rod, wherein the vehicle body is arranged on a vehicle body supporting shaft sleeve through the damping spring; the driving shaft drives the telescopic inner rod, the telescopic outer sleeve and the support lug to drive the rubber ring to rotate in an elliptic mode in the design of the elliptic wheel, the rubber ring is in contact with the ground to achieve the purpose of running, and the driving shaft is driven by a transmission shaft on a vehicle. In the invention, a guide groove slides on an elliptical track, the elliptical track is fixed on a track rotating shaft sleeve, the distance between the guide groove and the center changes along with the elliptical track at any moment, and a telescopic inner rod of a telescopic outer sleeve is nested with each other to adapt to the elliptical track during movement; after the rubber ring is driven, the rubber ring is connected with the elliptical track through the middle support lug and the side support lugs, the position of the side support lug where the rubber ring is installed makes elliptical motion, and the rotating rubber ring is constantly in deformation in the rotating process so as to adapt to the elliptical track. In the sliding process of the guide groove on the elliptical track, the included angle between the position of the side support lug on which the rubber ring is installed and the connecting line of the center of the ellipse changes in a small degree, so that the designed telescopic inner rod is installed in the ring groove of the driving shaft through the inner rod swing shaft to adapt to the purpose of changing the small degree between the telescopic inner rods. The balance wheel arranged on the driving shaft plays the roles of auxiliary driving and support reinforcement, and is embodied as follows: the telescopic inner rod penetrates through the swing hole or the clamping hole in the balance wheel, the swing hole is larger than the telescopic inner rod, the telescopic inner rod can move in the swing hole, the swing hole cannot interfere small-amplitude swing of the telescopic inner rod, the size of the clamping hole is basically consistent with that of the telescopic inner rod, the telescopic inner rod penetrating through the clamping hole is limited to swing in a small amplitude, and the telescopic inner rod penetrating through the clamping hole is enabled to drive the rubber ring to rotate in the whole process through the design. Although the telescopic inner rod which swings at a small angle can drive the elliptical wheel, the driving force fluctuates due to small change of the angle between the telescopic inner rods; therefore, a fixed telescopic inner rod is selected to drive the elliptical wheel to reduce the fluctuation of the driving force and assist the driving of the elliptical wheel. Track pivot cover passes through swivel connected coupler and connects automobile body support shaft sleeve, make oval track drive whole elliptical wheel can rotate around automobile body support shaft sleeve relatively, the elliptical wheel takes place the rotation of certain adaptation ground topography according to the protruding sunken of ground, realize better shock attenuation and increase and the area of contact on ground on the one hand and reach superstrong acceleration and deceleration ability, on the other hand can guarantee that the position with ground contact on the elliptical wheel is invariable, the invariant of contact point can be of value to the enhancement design of elliptical wheel frame on the elliptical wheel, guarantee that the elliptical wheel has superstrong structure in order to increase the security of elliptical wheel on the atress direction of contact point, and can alleviate other non-contact point frame intensity requirements, reduce weight. The invention ensures that the short diameter position of the elliptical wheel is contacted with the ground, the upper side and the lower side of the elliptical wheel are both short diameters, the nesting degree of the telescopic outer sleeve and the telescopic inner rod is maximum at the two positions, the telescopic outer sleeve extends into the radial surface of the balance wheel towards one side of the center, and the balance wheel strengthens the rigidity of the structures of the telescopic outer sleeve and the telescopic inner rod at the upper side and the lower side through the radial surface. Therefore, the balance wheel is designed to achieve the purpose of strengthening the structural rigidity on the upper side and the lower side of the elliptical wheel, and limit the swing of the telescopic inner rod to achieve the purpose of assisting in driving the elliptical wheel. The design of the inclined plane is beneficial to the telescopic jacket extending into the balance wheel.

Drawings

Figure 1 is a schematic view of an elliptical wheel configuration.

Figure 2 is a side view of an elliptical wheel.

Figure 3 is a cross-sectional view of an elliptical wheel configuration.

Fig. 4 is a schematic view of an elliptical wheel shock absorbing structure.

Fig. 5 is a schematic view of a channel installation.

FIG. 6 is a schematic diagram of a pocket configuration.

Fig. 7 is a schematic diagram of the balance structure.

Fig. 8 is a schematic diagram of the principle of the elliptical wheel adapting to the road surface.

Number designation in the figures: 1. the automobile seat back plate comprises a back plate, 3, side support lugs, 4, middle support lugs, 5, a rubber ring, 6, a telescopic outer sleeve, 7, a telescopic inner rod, 8, an oval track, 9, a balance wheel, 10, a driving shaft, 11, a vehicle body support plate, 12, a damping sleeve, 13, a damping spring, 14, a fixing flange, 16, a damping rod, 17, a damping rod support, 18, a rotary connecting piece, 19, a vehicle body support shaft sleeve, 20, a guide groove, 21, a baffle ring, 22, an outer edge ring, 23, a clamping ring, 24, a track rotating shaft sleeve, 25, a middle support lug support, 26, a telescopic hole, 27, a ring groove, 28, an inner rod swing shaft, 29, an inclined surface, 30, a radial surface, 31, a swing hole, 32, a clamping hole, 33 and a top ring.

Detailed Description

As shown in fig. 1 and 4, the vehicle body support comprises a back plate 1, side lugs 3, a middle lug 4, a rubber ring 5, a telescopic jacket 6, a telescopic inner rod 7, an elliptical track 8, a balance 9, a driving shaft 10, a vehicle body support plate 11, a damping sleeve 12, a damping spring 13, a damping rod 16, a damping rod support 17, a rotary connecting piece 18, a vehicle body support shaft sleeve 19, a guide groove 20, a track rotating shaft sleeve 24, a middle lug support 25, a telescopic hole 26, a ring groove 27, an inner rod swing shaft 28, an inclined surface 29, a radial surface 30, a swing hole 31 and a clamping hole 32, wherein as shown in fig. 6, one end of the driving shaft 10 is provided with the ring groove 27, seven inner rod swing shafts 28 are circumferentially and uniformly arranged on two groove walls of the ring groove, as shown in fig. 2 and 3, each inner rod swing shaft 28 is provided with the telescopic inner rod 7, the lower end of the telescopic jacket 6 is provided with the telescopic hole 26, each, as shown in fig. 5, a guide groove 20 is installed at the top end of each telescopic outer sleeve 6; as shown in fig. 4, the back plate 1 has a circular hole in the middle and is mounted on the orbit rotating shaft sleeve 24, the elliptical orbit 8 is mounted on the outer edge surface of the back plate 1, and the seven guide grooves 20 are in sliding fit with the elliptical orbit 8; the outer side of each guide groove 20 is provided with a middle support lug 4 through a middle support lug 25, seven middle support lugs 4 are provided with the same elliptical rubber ring 5 through side support lugs 3, and the middle support lugs 4 and the corresponding side support lugs 3 form hinges; as shown in fig. 7, the balance 9 has seven teeth uniformly, and both sides of the tooth tip of each tooth have inclined surfaces 29, the inclined surfaces 29 have radial surfaces 30 close to the center of circle, and the facing radial surfaces 30 between adjacent teeth are symmetrical; six tooth sockets among seven tooth sockets among the seven teeth are provided with swing holes 31, six telescopic inner rods 7 among the seven telescopic inner rods 7 penetrate through the corresponding swing holes 31, the length of the long side of the cross section of each swing hole 31 is 1.5 times that of the long side of the cross section of each telescopic inner rod 7, and the length of the short side of the cross section of each swing hole 31 is the same as that of the short side of the cross section of each telescopic inner rod 7; after six tooth sockets with the same swing hole 31 are removed from the seven tooth sockets, the remaining tooth socket is provided with a clamping hole 32, the remaining telescopic inner rod 7 penetrates through the clamping hole 32, and the size and the shape of the cross section of the clamping hole 32 are completely the same as those of the cross section of the telescopic inner rod 7; as shown in fig. 3 and 4, a vehicle body supporting shaft sleeve 19 is mounted on an orbit rotating shaft sleeve 24 through a rotating connector 18, a shock absorption rod support 17 is mounted on the vehicle body supporting shaft sleeve 19, a shock absorption rod 16 is mounted on the shock absorption rod support 17, a shock absorption sleeve 12 is nested on the outer edge surface of the shock absorption rod 16, and a vehicle body support plate 11 is mounted at the top end of the shock absorption sleeve 12; the damping spring 13 is nested outside the damping rod 16 and the damping sleeve 12, one end of the damping spring 13 is connected to the lower side of the vehicle body support plate 11, and the other end of the damping spring 13 is connected to the damping rod support 17.

As shown in fig. 3, the rotary connector 18 includes a retainer ring 21, an outer edge ring 22, a snap ring 23, and a top ring 33, wherein the snap ring 23 is mounted on the rail rotating shaft sleeve 24, the top ring 33 is mounted at one end of the vehicle body supporting shaft sleeve 19, the outer edge ring 22 is mounted on the outer edge surface of the top ring 33, the retainer ring 21 is mounted on one side of the outer edge ring 22, the snap ring 23 is located between the top ring 33 and the retainer ring 21, and both sides of the snap ring 23 are in sliding contact with the top ring 33 and the retainer ring 21, respectively.

As shown in fig. 4, the fixing flange 14 is attached to one end of the vehicle body support boss 19. The fixing flange 14 is conveniently fixed to the vehicle body.

In summary, the design of the elliptical wheel in the invention aims to know that the larger the wheel is, the larger the friction force to the ground is when braking is performed, the better the braking performance is, under the condition that the vehicle shell structure requires that the height of the vehicle body is lower, the diameter of the common circular wheel is limited, and the elliptical wheel can be larger than the circular arc at the contact part of the common circular wheel and the ground, namely the short diameter direction of the elliptical wheel is contacted with the ground, at the moment, because the short diameter is vertical, the overall height of the wheel is small, the requirement of the vehicle body is met, and most importantly, the friction force to the ground is larger than that of the common wheel, and the braking and acceleration of the vehicle are more facilitated; the vehicle body is arranged on a vehicle body supporting shaft sleeve 19 through a damping spring 13, and the damping sleeve 12 and a damping rod 16 are nested and designed to offset the transverse stress of the damping spring 13; in the design of the elliptical wheel, the driving shaft 10 drives the telescopic inner rod 7, the telescopic outer sleeve 6 and the support lug to drive the rubber ring 5 to rotate elliptically, the rubber ring 5 is in contact with the ground to achieve the purpose of driving, and the driving shaft 10 is driven by a transmission shaft on a vehicle. In the invention, a guide groove 20 slides on an elliptical track 8, the elliptical track 8 is fixed on a track rotating shaft sleeve 24, the distance between the guide groove 20 and the center changes along with the elliptical track 8 at any moment, and a telescopic inner rod 7 of a telescopic outer sleeve 6 is mutually nested to adapt to the elliptical track 8 in motion; after the rubber ring 5 is driven, the rubber ring 5 is connected with the elliptical track 8 through the middle support lug 4 and the side support lugs 3, the position of the side support lug 3 where the rubber ring 5 is installed makes elliptical motion, and the rotating rubber ring 5 is constantly in deformation in the rotating process so as to adapt to the elliptical track 8. In the sliding process of the guide groove 20 on the elliptical track 8, the included angle between the position of the side support lug 3 where the rubber ring 5 is installed and the connecting line of the center of the ellipse changes in a small range, so the designed telescopic inner rod 7 is installed in the annular groove 27 of the driving shaft 10 through the inner rod swing shaft 28, and the purpose of adapting to the small-range angle change between the telescopic inner rods 7 is achieved. The balance 9 mounted on the drive shaft 10 acts as an auxiliary drive and support reinforcement, embodied as: the telescopic inner rod 7 penetrates through the swing hole 31 or the clamping hole 32 in the balance wheel 9, the swing hole 31 is larger than the telescopic inner rod 7, the telescopic inner rod 7 can move in the swing hole 31, the swing hole 31 cannot interfere small-amplitude swing of the telescopic inner rod 7, the clamping hole 32 is basically the same as the telescopic inner rod 7 in size, the telescopic inner rod 7 penetrating through the clamping hole 32 is limited to swing in a small amplitude, and the telescopic inner rod 7 penetrating through the clamping hole 32 is enabled to drive the rubber ring 5 to rotate in the whole process through the design. Although the telescopic inner rod 7 which swings at a small angle can drive the elliptical wheel, the driving force fluctuates due to the small change of the angle between the telescopic inner rods 7; therefore, a fixed telescopic inner rod 7 is selected to drive the elliptical wheel to reduce the fluctuation of the driving force and assist the driving of the elliptical wheel. The orbit rotating shaft sleeve 24 is connected with the vehicle body supporting shaft sleeve 19 through the rotating connecting piece 18, so that the elliptical orbit 8 drives the whole elliptical wheel to rotate around the vehicle body supporting shaft sleeve 19 relative to the vehicle body, the elliptical wheel rotates to adapt to the ground terrain to a certain extent according to the convex and concave parts of the ground, as shown in a in fig. 8, on one hand, better shock absorption is realized, the contact area between the elliptical wheel and the ground is increased, and the ultra-strong acceleration and deceleration capacity is achieved, on the other hand, the position on the elliptical wheel, which is contacted with the ground, is constant, the constancy of the contact point on the elliptical wheel can be beneficial to the reinforced design of an elliptical wheel frame, and the elliptical wheel is guaranteed to have an ultra-strong structure in the stress direction of the contact point so as to increase; if the elliptical wheel does not rotate, the point of contact of the elliptical wheel with the ground is variable as shown in b in fig. 8, which does not facilitate the elliptical wheel frame design. The contact between the short diameter position of the elliptical wheel and the ground is ensured, the upper side and the lower side of the elliptical wheel are both short diameters, the nesting degree between the telescopic outer sleeve 6 and the telescopic inner rod 7 is the maximum at the two positions, the telescopic outer sleeve 6 extends into the radial surface 30 of the balance wheel 9 towards the center side, and the balance wheel 9 strengthens the rigidity of the structures of the telescopic outer sleeve 6 and the telescopic inner rod 7 at the upper side and the lower side through the radial surface 30. Therefore, the balance wheel 9 is designed to enhance the structural rigidity on the upper side and the lower side of the elliptical wheel, and limit the swing of the telescopic inner rod 7 to assist in driving the elliptical wheel. The design of the ramp 29 is advantageous for the telescopic jacket 6 to project into the balance 9.

Claims

1. A drive wheel characterized by: the vibration damping device comprises a back plate, side lugs, middle lugs, rubber rings, telescopic jackets, telescopic inner rods, elliptical tracks, balance wheels, a driving shaft, a vehicle body support plate, a vibration damping sleeve, a vibration damping spring, a vibration damping rod support, a rotary connecting piece, a vehicle body support shaft sleeve, a guide groove, a track rotating shaft sleeve, a middle lug support, a telescopic hole, a ring groove, an inner rod swing shaft, an inclined plane, a radial surface, swing holes and clamping holes, wherein a ring groove is formed in one end of the driving shaft, seven inner rod swing shafts are uniformly arranged on two groove walls of the ring groove in the circumferential direction, a telescopic inner rod is arranged on each inner rod swing shaft, telescopic holes are formed in the lower end of each telescopic jacket, each telescopic inner rod is sleeved into the corresponding telescopic hole of the telescopic jacket; the middle of the back plate is provided with a round hole and is arranged on the rail rotating shaft sleeve, the oval rail is arranged on the outer edge surface of the back plate, and the seven guide grooves are in sliding fit with the oval rail; the outer side of each guide groove is provided with a middle support lug through a middle support lug, seven middle support lugs are provided with the same elliptic rubber ring through side support lugs, and the middle support lugs and the corresponding side support lugs form hinges; seven teeth are uniformly arranged on the balance wheel, inclined planes are arranged on two sides of the tooth tip of each tooth, the inclined planes are provided with radial planes in the direction close to the circle center, and the radial planes which face to each other between the adjacent teeth are symmetrical; six tooth sockets in seven tooth sockets among the seven teeth are provided with swing holes, six telescopic inner rods in the seven telescopic inner rods penetrate through the corresponding swing holes, the cross section of each swing hole is square, the length of a long side of each swing hole is 1.5 times that of a long side of the cross section of each telescopic inner rod, and the length of a short side of the cross section of each swing hole is the same as that of a short side of the cross section of each telescopic inner rod; after six tooth sockets with the same swing hole are removed from the seven tooth sockets, the remaining tooth socket is provided with a clamping hole, the remaining telescopic inner rod penetrates through the clamping hole, and the size and the shape of the cross section of the clamping hole are completely the same as those of the cross section of the telescopic inner rod; the vehicle body supporting shaft sleeve is arranged on the track rotating shaft sleeve through a rotating connecting piece, the shock absorption rod support is arranged on the vehicle body supporting shaft sleeve, the shock absorption rod is arranged on the shock absorption rod support, the shock absorption sleeve is nested on the outer edge surface of the shock absorption rod, and the vehicle body supporting plate is arranged at the top end of the shock absorption sleeve; the damping spring is nested outside the damping rod and the damping sleeve, one end of the damping spring is connected to the lower side of the vehicle body support plate, and the other end of the damping spring is connected to the damping rod support;

the rotary connecting piece comprises a retaining ring, an outer edge ring, a clamping ring and a top ring, wherein the clamping ring is arranged on a track rotating shaft sleeve, the top ring is arranged at one end of a vehicle body supporting shaft sleeve, the outer edge ring is arranged on the outer edge surface of the top ring, the retaining ring is arranged on one side of the outer edge ring, the clamping ring is positioned between the top ring and the retaining ring, and two sides of the clamping ring are respectively in sliding contact with the top ring and the retaining ring;

and a fixed flange is arranged at one end of the vehicle body supporting shaft sleeve.