CN2615033Y

CN2615033Y - Front-wheels steering mechanism for four-wheeled electric vehicle

Info

Publication number: CN2615033Y
Application number: CN 03231184
Authority: CN
Inventors: 陈伯元
Original assignee: Shanghai Cranes Electric Vehicle Co ltd
Current assignee: Shanghai Cranes Electric Vehicle Co ltd
Priority date: 2003-05-14
Filing date: 2003-05-14
Publication date: 2004-05-12
Anticipated expiration: 2013-05-14

Abstract

A front wheel veer mechanism for four-wheel electric vehicles is installed on frames, which comprises a steering handle, a steering section, a steering column, an off-center steering wheel, a steering link gear, a right steering column, and a left steering column. Due to the off-center steering wheel, the rotation angle of the steering handle can be larger than the practical rotation angle of the front wheel, thereby improving operating stability and ensuring running safety. The steering section comprises a direction regulating mechanism which can regulate the angle of a steering rod according to body characteristics, personalities and habits of operators, thereby realizing humanization operation. The steering column, the right steering column, and the left steering column all apply eight-bowl steering mechanism for guaranteeing flexible rotation and avoiding scuffing when a vehicle is running on an uneven road surface.

Description

The four-wheel electric motor car foresteerage gear

Technical field

The utility model relates to a kind of running vehicle parts, relates in particular to a kind of four-wheel electric motor car foresteerage gear.

Background technology

Four-wheel electric motor car is subjected to liking of the elderly and the disabled deeply as a kind of leisure walking-replacing tool, has obtained using widely.Because it uses object to be the elderly and the disabled, this just requires the operation of four-wheel electric motor car very light and handy, only need spend less strength, just can make things convenient for manipulation freely.And the principal organ that handles four-wheel electric motor car is a steering hardware.Obviously, the steering hardware of four-wheel electric motor car can not adopt the bulb worm steering mechanism of rulley and the rack-and-gear steering hardware of car, because these two kinds of steering hardware structures are too complicated, and involves great expense; Also be unsuitable for adopting the front fork that is used on common three-wheel vehicle and the bicycle directly to drive fork mechanism, because this steering hardware structure is too simple, and the operation effort.

Summary of the invention

The purpose of this utility model is to provide a kind of novel structure, the light and reliable and stable four-wheel electric motor car foresteerage gear of operation.

The purpose of this utility model is to realize like this, a kind of four-wheel electric motor car foresteerage gear, be installed on the vehicle frame, be characterized in: comprise the steering handle, the direction joint that is connected the steering handle lower end that are arranged on two front-wheels middle part top, the direction post, the off-centre that are connected direction joint lower end be installed in the steering handwheel of direction post lower end, the steering linkage that links to each other with steering handwheel and with steering linkage bonded assembly right steering post and left steering post, the right steering post connects off front wheel and drives off front wheel and turns to, and the left steering post connects the near front wheel and drives the near front wheel and turns to;

Right steering post pull bar, intermediate rod and left steering post pull bar that described steering linkage comprises the steering handwheel pull bar that is connected the steering handwheel right side, is rotatedly connected with the steering handwheel pull bar, right steering post pull bar connects the right steering post and drives the right steering post and turns to, and left steering post pull bar connects the left steering post and drives the left steering post and turns to;

The left intermediate rod that described intermediate rod comprises the right intermediate rod that is rotatedly connected with right steering post pull bar, is rotatedly connected with left steering post pull bar, connect by the intermediate rod setting nut between the left and right intermediate rod, the total length of intermediate rod can be regulated by the intermediate rod setting nut.

Above-mentioned four-wheel electric motor car foresteerage gear, wherein, described direction joint comprises the last turning handle that links to each other with steering handle, the following turning handle and the direction adjustment organization that link to each other with the direction post;

The described turning handle of going up comprises handle bar and the semi-circle gear that is connected in handle bar lower end, described turning handle down upper end is provided with a notch, the notch bottom is provided with a slotted eye, and last turning handle is by linking to each other the notch top on the turning handle under the semi-circle gear insertion of its lower end with following turning handle socket joint;

Described direction adjustment organization comprises that quick detacher, the location alligator that is arranged on down turning handle notch bottom, the two-way driving lever that is transverse in alligator top, location and cover that the socket joint connecting portion that is arranged on upper and lower turning handle is clamped together upper and lower turning handle series connection are combined in the retainer spring that is arranged on down below the alligator of location in the turning handle slotted eye, the top of location alligator is provided with a positioning teeth, this positioning teeth can insert the turning handle lower end semi-circle gear teeth groove and with its engagement location, stretch out outside the notch of following turning handle at the two ends of two-way driving lever, and two-way driving lever can move up and down along notch.

Above-mentioned four-wheel electric motor car foresteerage gear, wherein, described direction post, left steering post are identical with the right steering rod structure, respectively comprise deflecting bar assembly and eight bowl steering hardwarees that are set on the deflecting bar assembly, these eight bowl steering hardwarees comprise that from top to bottom order is set in the jam nut of deflecting bar assembly upper end, anti-loosing slice, goes up retaining, goes up ball-collecting rack and goes up bowl, and order is set in the following retaining of deflecting bar assembly bottom, ball-collecting rack and following bowl down from bottom to up.

A kind of four-wheel electric motor car foresteerage gear of the present utility model makes it have following tangible characteristics and advantage owing to adopted above technical scheme:

1, owing to adopted accentric steering handwheel structure, realized the actual steering angle of the rotational angle of steering handle greater than front-wheel, operational stability is improved, the safety of travelling is more reliable.

2, owing in direction post and left and right Steering gear, all having adopted eight bowl steering hardwarees, simple in structure, reliable, reasonable; The rotation that last ball-collecting rack and following ball-collecting rack can guarantee deflecting bar is flexible and since two ball-collecting racks with last bowl or between following bowl in the radial and axial certain clearance that is equipped with, in the time of can guaranteeing on the road surface of injustice, to travel, still can rotate flexibly, can not kill.

3, owing to adopted direction joint regulating mechanism in direction joint, the angle that can regulate direction lever according to operator's human body height, arm length, individual sexual custom realizes the hommization operation; And can realize the direction lever horizontal positioned, make whole four-wheel electric motor car can put into car rump, be easy to carry.

Description of drawings

By the description of following examples in conjunction with its accompanying drawing, can further understand the purpose of this utility model, concrete structure characteristics and advantage, wherein, accompanying drawing is:

Fig. 1 is the main TV structure scheme drawing that the four-wheel electric motor car of the utility model four-wheel electric motor car foresteerage gear is installed;

Fig. 2 is the birds-eye view (having omitted steering handle) of Fig. 1;

Fig. 3 is the main TV structure scheme drawing that the utility model four-wheel electric motor car foresteerage gear and four-wheel electric motor car front-wheel are combined;

Fig. 4 is the birds-eye view (having omitted steering handle) of Fig. 3;

Fig. 5 is the structural representation of the direction joint in the utility model;

Fig. 6 is the side view cutaway drawing of Fig. 5;

Fig. 7 is the structural representation of the Steering gear in the utility model;

Fig. 8 is the STRUCTURE DECOMPOSITION scheme drawing that is set in eight bowls on the Steering gear.

The specific embodiment

See also Fig. 1, Fig. 2, the utility model four-wheel electric motor car foresteerage gear 1 is installed on the vehicle frame 2, and forms a single-piece four-wheel electric motor car with the miscellaneous part off front wheel 3 of four-wheel electric motor car, the near front wheel 4, trailing wheel 5, vehicle seat 6 etc.This four-wheel electric motor car is light, turn to flexibly, is particularly suitable for old person as walking-replacing tool.

See also Fig. 3, Fig. 4, four-wheel electric motor car foresteerage gear 1 of the present utility model, be installed on the

vehicle frame

2, and 4 transmissions link to each other with the near front wheel with off front wheel 3, comprise steering handle 11, direction joint 12, direction post 13, steering handwheel 14, steering linkage 15, right steering post 16 and left steering post 17.Steering linkage 15 comprises steering handwheel pull bar 151, right steering post pull bar 152, intermediate rod 153 and left steering post pull bar 154.Intermediate rod 153 comprises right intermediate rod 1531, left intermediate rod 1532 and intermediate rod setting nut 1533.

Steering handle 11 is arranged on the top at two front-wheels middle part; Direction joint 12 is connected the lower end of steering handle 11; Direction post 13 is connected the lower end of direction joint 12, and is fixed on the vehicle frame 2 by its shell filling; Steering handwheel 14 off-centre are installed on the spindle nose of direction post 13 lower ends; Steering linkage 15 links to each other with steering handwheel 14, wherein, steering handwheel pull bar 151 is connected the right side of steering handwheel 14, right steering post pull bar 152 is connected the rear end of steering handwheel pull bar 151, intermediate rod 153 is connected the rear end of right steering post pull bar 152, left steering post pull bar 154 is connected the rear end of intermediate rod 153, and right steering post pull bar 152 also is connected on the right steering post 16, and left steering post pull bar 154 also connects on the left steering post 17; Right intermediate rod 1531 in the intermediate rod 153 is rotatedly connected with right steering post pull bar 152, left intermediate rod 1532 in the intermediate rod 153 is rotatedly connected with left steering post pull bar 154, connect by intermediate rod setting nut 1533 between the left and right intermediate rod, the total length of intermediate rod 153 can be regulated by intermediate rod setting nut 1533.

Right steering post 16 and left steering post 17 are installed in respectively on the vehicle frame 2, the spindle nose of right steering post 16 connects right intermediate rod 1531 and off front wheel 3, when steering handwheel 14 rotates, drive right steering post pull bar 152 by connected steering handwheel pull bar 151, and then drive 16 rotations of right steering post, and then drive off front wheel 3 turns to.The spindle nose of left steering post 17 connects left intermediate rod 1532 and the near front wheel 4, when steering handwheel 14 rotates, drive right steering post pull bar 152, intermediate rod 153 and left steering post pull bar 154 by connected steering handwheel pull bar 151, and then drive 17 rotations of left steering post, and then drive the near front wheel 4 turns to.

See also Fig. 5, Fig. 6, the direction joint 12 in the utility model comprises turning handle 121, following turning handle 122 and direction adjustment organization 123.

The upper end of last turning handle 121 links to each other with steering handle 11, the lower end of following turning handle 122 links to each other with direction post 13, last turning handle 121 comprises handle bar 1211 and is connected in the semi-circle gear 1212 of handle bar lower end, be provided with in the following upper end of turning handle 122 one with the adaptive notch 1221 of semi-circle gear, notch 1221 bottoms are provided with a slotted eye 1222, and last turning handle 121 passes through notch 1221 tops of turning handle 122 under semi-circle gear 1211 insertions of its lower end are linked to each other with following turning handle 122 socket joints.

Direction adjustment organization 123 comprises quick detacher 1231, location alligator 1232, two-way driving lever 1233 and retainer spring 1234.Quick detacher 1231 is arranged on the socket joint connecting portion of upper and lower turning handle, and it passes this connecting portion upper and lower turning handle polyphone is clamped together; Location alligator 1232 is arranged on down the bottom of the notch 1221 of turning handle 122, and its upper end is provided with a positioning teeth 12321, can locate with semi-circle gear 1211 engagements of last turning handle lower end; Two-way driving lever 1233 is transverse in the top of location alligator 1232, and stretch out outside the notch 1221 of following turning handle 122 at its two ends; Retainer spring 1234 covers are combined in the below of location alligator 1232, are arranged on down in the slotted eye 1222 of turning handle 122.By compressing or unclamping quick detacher 1231, can change the clamping degree of tightness state of upper and lower turning handle; Move the teeth groove that positioning teeth that two-way driving lever 1233 will locate alligator 1232 snapped in or withdrawed from the semi-circle gear 1211 of going up the turning handle lower end by upper and lower, can make turning handle and following turning handle positioning and fixing or disengage.When needs are regulated the orientation of direction lever 11, unclamp quick detacher 1231, depressing two-way driving lever 1233 disengages the semi-circle gear 1211 of itself and last turning handle 121 lower ends, turning handle 121 is rotated around quick detacher 1231 above the alligator 1232 of location, thereby the front and back of realizing direction lever 11 work angles are regulated, the semi-circle gear revolution of last turning handle lower end moves a tooth, can make direction lever 11 rotate 4 ° forward or backward.Loosen two-way driving lever 1233 after the adjusting, the retainer spring 1234 that is located at alligator 1232 belows, location will will be located alligator 1232 with its elastic force and be moved up, make the positioning teeth of locating alligator 1232 snap in the teeth groove of the semi-circle gear 1211 of turning handle lower end again, to go up turning handle and following turning handle positioning and fixing, lock quick detacher 1231 then, promptly finish one-time positioning and regulate.

The angle that four-wheel electric motor car foresteerage gear of the present utility model can be regulated direction lever according to operator's human body height, arm length, individual sexual custom realizes the hommization operation.And can realize the direction lever horizontal positioned, make whole four-wheel electric motor car can put into car rump, be easy to carry.

See also Fig. 7, Fig. 8, direction post 13 in the utility model, right steering post 16 is identical with left steering post 17 structures, respectively comprise deflecting bar assembly A and eight bowl steering hardware B that are set in deflecting bar assembly two ends, these eight bowl steering hardware B comprise jam nut B1, anti-loosing slice B2, last retaining B3, last ball-collecting rack B4, last bowl B5, following bowl B6, following ball-collecting rack B7 and following retaining B8, jam nut B1, anti-loosing slice B2, last retaining B3, last ball-collecting rack B4 and last bowl B5 are set in the upper end of deflecting bar assembly A, following retaining B8 from top to bottom in proper order, following ball-collecting rack B7 and following bowl B6 are set in the bottom of deflecting bar assembly A from bottom to up in proper order.Adopt eight bowl steering hardwarees, owing to be provided with ball-collecting rack B4 and following ball-collecting rack B7, the rotation that can guarantee deflecting bar is flexible, since two ball-collecting racks with last bowl or between following bowl in the radial and axial certain clearance that is equipped with, in the time of can guaranteeing on the road surface of injustice, to travel, still can rotate flexibly, can not kill.

Claims

1, a kind of four-wheel electric motor car foresteerage gear, be installed on the vehicle frame, it is characterized in that: comprise the steering handle, the direction joint that is connected the steering handle lower end that are arranged on two front-wheels middle part top, the direction post, the off-centre that are connected direction joint lower end be installed in the steering handwheel of direction post lower end, the steering linkage that links to each other with steering handwheel and with steering linkage bonded assembly right steering post and left steering post, the right steering post connects off front wheel and drives off front wheel and turns to, and the left steering post connects the near front wheel and drives the near front wheel and turns to;

2, four-wheel electric motor car foresteerage gear according to claim 1 is characterized in that: described direction joint comprises the last turning handle that links to each other with steering handle, the following turning handle and the direction adjustment organization that link to each other with the direction post;

3, four-wheel electric motor car foresteerage gear according to claim 1, it is characterized in that: described direction post, left steering post are identical with the right steering rod structure, respectively comprise deflecting bar assembly and eight bowl steering hardwarees that are set on the deflecting bar assembly, these eight bowl steering hardwarees comprise that from top to bottom order is set in the jam nut of deflecting bar assembly upper end, anti-loosing slice, goes up retaining, goes up ball-collecting rack and goes up bowl, and order is set in the following retaining of deflecting bar assembly bottom, ball-collecting rack and following bowl down from bottom to up.