CN206508143U - The Universal battery operated wheelchair of four-wheel drive - Google Patents

Abstract

The utility model discloses a kind of Universal battery operated wheelchair of four-wheel drive, the seat of backrest is provided with vehicle frame, control stick is installed in front of the handrail of seat, controller for electric consumption and battery are installed at central frame beam position, before below the vehicle frame, it is provided with free bearing on rear cross beam before a pair, rocker afterwards, before, the lateral surface of rocker is with before afterwards, afterwards, it is left, right four medial surfaces for boring tooth reduction box for being built-in with cone tooth decelerator respectively are connected, direct current generator is mounted on four cone tooth decelerators, left-handed universal wheel or dextrorotation universal wheel are separately installed with the outside of four cone tooth reduction boxes, each direct current generator is respectively connecting to control device and battery.In the utility model, promote control stick to control four direct current generators and cone tooth reduction box toward different directions to drive that forward and backward two pairs left-handed and dextrorotation universal wheel turn to and rotates independently of one another to realize wheelchair direction movement, turn to flexibly, stability is good.

Description

The Universal battery operated wheelchair of four-wheel drive

Technical field

The utility model is related to a kind of Universal battery operated wheelchair of four-wheel drive.

Background technology

Existing electric wheelchair is that two common wheels are driven by two direct current generators, and this electric wheelchair can not do transverse direction The movement of mobile or any direction, it can only before and after and along circular arc route running, space-consuming is big, it is impossible in narrow space row Sail, therefore, this electric wheelchair is not belonging to the electric wheelchair of all driection running.

In the utility model patent computer wheelchair of omnibearing ambulation " can " of Patent No. 94242035.7, wheel uses waist , there is attachment structure complexity between hub for vehicle wheel and drum-shaped roller in barrel shaped roller, technology difficulty is big, and manufacturing cost is high, wheel Width is big, the shortcomings of wheel weight increase, while between wheel and vehicle frame there is problem in structure, when car body is loaded, wheel Eccentric moment is produced between car body, makes wheel axis deflection, wheel axis is not parallel to the ground, roller is not just on influence wheel It can all be contacted with ground, wheel can beat, car body is produced serious bounce in the process of moving.Patent No. 99256753.X The utility model patent three-wheel electric wheelchair of omnibearing ambulation " can " in, three universal wheels along the circumferential direction arrange by tangent line, whole Individual car body less stable, when climbing, easily overturns.Utility model patent " the novel universal of Patent No. 03250713.5 In the electric wheelchair of walking ", the wheel of four-wheel drive and three-wheel drive can not be arranged in parallel, and make body frame structure for automotive complicated, take empty Between it is big, three-wheel drive stability is poor, while being made up of on wheel drum-shaped roller of different sizes and ship type support, part product Plant many, it is complicated.

The content of the invention

The purpose of this utility model is to solve the complicated heaviness of current electric wheelchair structure, the technical problem of stability difference.

To realize above utility model purpose, the utility model provides a kind of Universal battery operated wheelchair of four-wheel drive, in car The seat of backrest is provided with frame, control stick is installed in front of the handrail of the seat, in central frame beam position peace Equipped with controller for electric consumption and battery, a pair of forward and backward pendulum are installed at the free bearing on the forward and backward crossbeam below the vehicle frame Frame, lateral surface and the front, rear, left and right four of the forward and backward rocker are built-in with the interior of the cone tooth reduction box of cone tooth decelerator respectively Side is connected, and direct current generator is mounted on four cone tooth decelerators, and the outside of four cone tooth reduction boxes is pacified respectively Equipped with left-handed universal wheel or dextrorotation universal wheel；

Each direct current generator is respectively connecting to the control device and battery.

Further, respectively have right on a pair of first free bearings, the forward and backward rocker at the forward and backward entablature of the vehicle frame Claim provided with four the second free bearings, each first free bearing is connected with four shock absorber upper ends respectively, the lower end of each shock absorber It is connected respectively with each second free bearing.

Further, the wheel rim top of the left-handed universal wheel and dextrorotation universal wheel is equipped with some pillars, each branch A two-way projecting shaft is mounted on post, is separately installed with the two ends of each two-way projecting shaft in cone rolling, the cone rolling Rolling bearing is installed, the cone rolling is freely rotated on the two-way projecting shaft.

Further, the central axis of the axis of the two-way projecting shaft on the left-handed universal wheel and the left-handed universal wheel α angles are formed, the central axis of the axis of the two-way projecting shaft of the dextrorotation universal wheel and the dextrorotation universal wheel forms reverse α Angle.

Further, the α angles are 5 °~85 °.

Compared with prior art, the beneficial effects of the utility model are：

In the utility model, control stick is promoted to issue instructions to electric control gear to control four direct currents toward different directions Motor and cone tooth reduction box realize wheelchair to drive that forward and backward two pairs left-handed and dextrorotation universal wheel turn to and rotate independently of one another Advance, retrogressing, transverse moving left and right, oblique translation and the direction movement such as rotate in place, turn to flexible, stability is good, realizes universal electricity Wheelchair is followed one's bent towards any direction traveling, and especially narrow space also can be travelled flexibly indoors.Universal wheel epicone is rolled It is simple and light, easily manufactured, car body good damping result, smooth ride.Structure of the present utility model is also applied to electricity The function of its all driection running is realized on the products such as dynamic transport vehicle, hospital's electric bed for medical purpose and electric children vehicle.

Brief description of the drawings

Fig. 1 is stereogram of the present utility model；

Fig. 2 is explosive view of the present utility model；

Fig. 3 is the wheel rim stereogram of left-handed universal wheel；

Fig. 4 is the wheel rim stereogram of dextrorotation universal wheel；

Fig. 5 is the left-handed universal wheel rim stereogram for being provided with two-way projecting shaft；

Fig. 6 is the universal wheel rim stereogram of dextrorotation for being provided with two-way projecting shaft；

Fig. 7 is left-handed universal wheel local conic rolling sectional view；

Fig. 8 is dextrorotation universal wheel local conic rolling sectional view；

Fig. 9 is cone rolling and rolling bearing sectional view；

In figure, 1 band backrest seat, 2 vehicle frames, 3 left-handed universal wheels, 4 dextrorotation universal wheels, 5 cone tooth reduction boxes, 6 direct current generators, 7 electric control gears, 8 control sticks, 9 batteries, 10 rockers, 11 shock absorbers, 12 first free bearings, 13 rocker free bearings, 14 second free bearings, 15 Rocker lateral surface, 16 cone tooth reduction box medial surfaces, 17 cone tooth reduction box lateral surfaces, 18 left-handed universal wheel rims, 19 two-way stretchings Axle, 20 cone rollings, 21 rolling bearings, the universal wheel rim of 22 dextrorotation, 23 left-handed universal wheel support uprights, 24 dextrorotation universal wheel wheel support uprights.

Embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.

As shown in figs 1-9, the Universal battery operated wheelchair of four-wheel drive of the present utility model, by band backrest seat 1, vehicle frame 2 is left Revolve universal wheel 3, dextrorotation universal wheel 4, control stick 8, electric control gear 7, direct current generator 6, battery 9, cone tooth reduction box 11, composition ten thousand To electric wheelchair.The top of vehicle frame 2 is arranged on backrest seat 1 in fig. 2, equipped with behaviour in front of the handrail with backrest seat 1 Vertical pole 5, electric control gear 7 and battery 9 are provided with the middle part of vehicle frame 2, have free bearing 14 to pacify the lower crossbeam of vehicle frame 2 is forward and backward Forward and backward rocker 10 is filled a pair, in the medial surface of the four cone tooth reduction boxes 5 in lateral surface 15 and the front, rear, left and right of forward and backward rocker 10 16 are connected, and four cone tooth reduction boxes 5 all install direct current generator 8, and the outside 17 of four cone tooth reduction boxes 5 respectively installs left-handed universal Wheel 3 installs dextrorotation universal wheel 4, respectively has a pair of free bearings 12 and four upper ends of shock absorber 11 to connect at the forward and backward entablature of vehicle frame 2 Connect, the lower end of shock absorber 11 is connected with four rocker free bearings 13 on forward and backward rocker, on the wheel rim 18 of left-handed universal wheel 3 There are 12 pillars 23, see Fig. 3.Equally there are 12 pillars 24 on the wheel rim 22 of dextrorotation universal wheel 4, see Fig. 4.In pillar 23 and branch There is the axle 19 of two-way stretching on post 24, see Fig. 5 and Fig. 6.Cone rolling 20 is all installed at the two ends of the axle 19 of two-way stretching and rolled Bearing 21, is shown in Fig. 7, Fig. 8 and Fig. 9.The axis of two-way projecting shaft 19 on left-handed universal wheel 3 and the axle formation α of wheel center Angle.See Fig. 7.The axis of the axle 19 of two-way stretching on dextrorotation universal wheel 4 forms reverse α angles, sees Fig. 8.The left-handed and right side Revolve the two-way projecting shaft of universal wheel axis it is equal with the α corner dimensions of central wheel axis, in the opposite direction, α 5 °~85 ° it Between, see Fig. 7 and Fig. 8.

During work, by promoting control stick 8 to send the instruction moved to different directions toward different directions, by electric control gear 7 Direct current generator 6 and cone tooth reduction box 5 is driven to drive left-handed universal wheel 3 and the respective independent steering of dextrorotation universal wheel 4 with battery 9 Realized with rotating speed wheelchair advance, retrogressing, transverse moving left and right, oblique translation and rotate in place or other travel routes function.

Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right Property scope.

Claims (4)

1. the Universal battery operated wheelchair of four-wheel drive, it is characterised in that the seat of backrest is provided with vehicle frame, in the seat Handrail in front of control stick is installed, controller for electric consumption and battery are installed at the central frame beam position, in the vehicle frame A pair of forward and backward rockers are installed at the free bearing on the forward and backward crossbeam of lower section, the lateral surface of the forward and backward rocker with it is forward and backward, left, Right four medial surfaces for boring tooth reduction box for being built-in with cone tooth decelerator respectively are connected, and are respectively mounted on four cone tooth decelerators Have and be separately installed with left-handed universal wheel or dextrorotation universal wheel on the outside of direct current generator, four cone tooth reduction boxes；

Each direct current generator is respectively connecting to the control device and battery；

Respectively have at the forward and backward entablature of the vehicle frame and be arranged with four second on a pair of first free bearings, the forward and backward rocker Free bearing, each first free bearing is connected with four shock absorber upper ends respectively, and the lower end of each shock absorber is respectively with each described Two free bearings are connected.

2. the Universal battery operated wheelchair of four-wheel drive as claimed in claim 1, it is characterised in that the left-handed universal wheel and dextrorotation The wheel rim top of universal wheel is equipped with some pillars, each pillar and is mounted on a two-way projecting shaft, each described double It is separately installed with to the two ends of projecting shaft in cone rolling, the cone rolling and rolling bearing is installed, the cone rolling is in the two-way stretching Freely rotated on axle.

3. the Universal battery operated wheelchair of four-wheel drive as claimed in claim 2, it is characterised in that double on the left-handed universal wheel To the central axis formation α angles of the axis and the left-handed universal wheel of projecting shaft, the two-way projecting shaft of the dextrorotation universal wheel The central axis of axis and the dextrorotation universal wheel form reverse α angles.

4. the Universal battery operated wheelchair of four-wheel drive as claimed in claim 3, it is characterised in that the α angles are 5 °~85 °.