CN104802769A

CN104802769A - In-situ steering automotive chassis

Info

Publication number: CN104802769A
Application number: CN201510268685.2A
Authority: CN
Inventors: 陈烁
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-05-22
Filing date: 2015-05-22
Publication date: 2015-07-29

Abstract

The invention discloses an in-situ steering automotive chassis, which can steer in situ, and belongs to the field of traffic tools. The in-situ steering automotive chassis comprises wheels, a frame and a beam, wherein the middle part of the beam in the middle of the frame is upwards connected with a piston rod of a lifting hydraulic oil cylinder through a hole in a penetration mode; a pressure bearing is arranged in each of an upper opening and a lower opening of the hole; the pressure bearings are in threaded connection nearby the upper end of the piston rod through nuts for integrally connecting the piston rod with the beam movably; meanwhile, a piston rod gear is further arranged at the upper end of the piston rod; a motor with a regulating gear at the top end is vertically fixed on the beam at the right side of the piston rod gear; the regulating gear is engaged with the piston rod gear; four supporting legs which are uniformly distributed are connected on the oil cylinder body of the lifting hydraulic cylinder. The in-situ steering automotive chassis is used for various car bodies, mainly used for four-wheel cars.

Description

Pivot stud car chassis

Technical field

The invention belongs to traffic appliance field, specifically refer to a kind of pivot stud car chassis.

Background technology

Comprise wheel, vehicle frames etc. are the important component parts of automobile in interior vehicle chassis component system, support, transmission, travel, turn to, the performance of all necessary functions of the automobiles such as braking all relies on it, in general, so-called motor turning is exactly turning to of the car chassis comprising vehicle frame in fact, move axially before and after the adjustment that to be exactly mat deflecting bar change relative to transverse axis angle wheel of common steering mode and chassis and jointly realize, the size of turn radius is the important indicator of a measurement automotive performance, its crossing ability less is more good more popular to people, the space that particularly more and more blocks up now forces people constantly improve, but the utilization of traditional thinking being conceived to wheelbase and advanced wheel fine setting technology is also difficult to allow this index of automobile turning radius have the reduction of too large essence, preferably this index of example vehicle is also at about 1.5 times of vehicle commander, be about more than 6 meters so that its turn radius of the vehicle of 4.2 meters is minimum, this just means that the traveling place that wide cut must be had to be not less than 12 meters could meet the revolution at its 180 ° of angles, this turning place space hold being equivalent to vehicle commander three times is also a kind of waste or unreasonable, be sought after improving, in actual life people need a kind of car chassis that significantly can reduce turn radius particularly can the chassis of pivot stud to meet the use of people.

Summary of the invention

Object of the present invention is the new technical scheme pivot stud car chassis providing a kind of car chassis, and it can allow car pivot stud ultimate attainment to make the turning place of vehicle take to be reduced to.

Technical scheme of the present invention realizes like this, it comprises wheel, vehicle frame, crossbeam, upwards worn the piston rod being connected with a raise-lower hydraulic oil cylinder by a hole in the middle part of the crossbeam of described central frame beam, suitable for reading and the end opening in hole is all equipped with a pressure bearing, linking into an integrated entity by piston rod and crossbeam activity near the upper end being connected to piston rod by nut thread, simultaneously at upper end returning apparatus one piston rod gear of piston rod, the motor of one top band adjusting gear is vertically fixed on the crossbeam on the right side of piston rod gear, and adjusting gear is mutually meshing with piston rod gear; The cylinder body of lifting hydraulic cylinder is connected with four well-distributed supporting legs.

The invention has the beneficial effects as follows the turn radius that can reduce automobile to greatest extent, the dexterity improving automobile, by performance, meets the driving needs of people.

accompanying drawing illustrates:

Fig. 1 is that the design illustrates the lateral plan (supporting leg is in the state of propping, the cutaway view Amplified image containing crossbeam and piston rod and attaching parts thereof) of car chassis.

Fig. 2 is the lateral plan that supporting leg is in the chassis of collapsed state.

Fig. 3 is the birds-eye view of the parts rigging position such as supporting leg, oil cylinder, piston rod, piston rod gear, adjusting gear, motor, crossbeam of chassis whole and magnifying state.

Fig. 4 is that chassis simulation practicality turns to one of situation to illustrate (turned to 180 ° of angles relative to the location status chassis of Fig. 3, in this process, all dynamic motor of supporting leg, hydraulic system for lifting, piston rod gear and adjusting gear then synchronously have rotated 180 ° of angles in company with crossbeam vehicle frame wheel etc.).

Fig. 5 turns left the location status example at 90 ° of angles in chassis again.

In each figure, 1 is wheel, and 2 is vehicle frame, and 3 is crossbeam, and 4 is piston rod, and 5 is piston rod gear, and 6 is oil cylinder, and 7 is supporting leg, and 8 is nut, and 9 is pressure bearing, and 10 is adjusting gear, and 11 is motor.

detailed description of the invention:

Casehistory the design is carried out below in conjunction with accompanying drawing.

As shown in Figure 1, Figure 2, Figure 3 shows, four supporting legs 7 that evenly fork distributes are fixed on the cylinder body of a hydraulic lifting oil cylinder 6, and the outer end of supporting leg all slightly has a down dip, oil cylinder in-built being equipped with near a upper end suitable for reading machined adduction step and externally threaded piston rod 4, piston rod 4 upwards penetrates one by wheel 1, vehicle frame 2, in a hole on the intermediate transverse girder on the chassis of component combination such as crossbeam 3 grade, the position in this hole is preferably in the centre of crossbeam length, also slightly can offset according to particular case, suitable for reading and the end opening in hole is all equipped with a pressure bearing 9, linking into an integrated entity by piston rod and crossbeam activity near the upper end being threaded onto piston rod 4 by nut 8, namely chassis system can make the circular movement in horizontal direction relative to piston rod, pressure bearing can make this relative movement smooth and easy flexibly while bearing pressure, as Fig. 1, shown in Fig. 3, simultaneously also anchor fitting one piston rod gear 5 in the upper end of piston rod 4, motor 11 axle head of one axle head band adjusting gear 10 is upwards vertically fixed on the crossbeam 3 on the right side of piston rod gear, and fix by boring bolt, adjusting gear 10 is mutually meshing with piston rod gear 5, as shown in Figure 3.Like this, the pivot stud car chassis of the design is just described, actual need when utilizing to combine with supporting accessory competence exertion its act on, specifically comprise the turnover hydraulic oil port of oil cylinder and the Hydraulic Pump of configuration of automobiles and hydraulic control device to connect and combine to reach the object being elevated chassis, by the circuit of the wire of motor access automobile and on-off control system, if place is enough spacious or turning to certainly without the need to starting this function in running car, if when the normal steering operation of narrow space has been difficult to, this function has just used, the effect of chassis rise and oil pressure can make oil cylinder 6 move downward relative to piston rod 4 by the hydraulic control system first operating the automobile no longer travelled, after supporting leg 7 contacts to earth, whole car chassis is risen wheel lift, the switch activated motor 11 of function circuit works again, this switch-linear hybrid can be gone out rotate forward reverse functions, operator turns to requirement to select according to concrete, the motor of work can drive the meshing rotation of the meshing piston rod gear of adjusting gear 10 5, due to piston rod and piston rod gear and oil cylinder, supporting leg is connected relatively motionless, then this meshing meeting forces vehicle frame and whole chassis namely to turn in the rotation of horizontal surface, or a kind of stepping motor of selection of Motor, it is regulated etc. by the control of accurately just reversing of programmable logic controller (PLC) (PLC) to motor step elongation, as Fig. 3, Fig. 4, shown in Fig. 5, namely supporting leg is packed up after completing steering operation, wheel contacts to earth, can start to walk normally to have travelled again, in general, the turning to of this horizontal surface direction on chassis rotates without the need to more than 180 ° of angles, rotating speed about 30 °/s angle in circular segment.Due to the supporting leg of the design and the connecting portion of jacking system and vehicle frame be in vehicle frame geometric centre or near, although the occupant of car and the weight of Loaded goods be do not fix uncertain, it is change, center of gravity does not necessarily overlap with geometric centre, but because the leg portion of the design and the contact surface on ground are not a point but (area in this face is about 1/3 of the overall vertical plane area of car in a larger face, as shown in Fig. 3 Fig. 4), the center of gravity of car is bound in the scope in this face, so stability overall after wheel leaves ground in lifting process is also failure-free, only from the drawing effect of the design, supporting leg and cylinder system are many relative to the space hold under former chassis, this can reduce crossing ability in some cases certainly, in fact, the jacking system of the design's steering swivel system is used only to need the liftoff rise space of about about 5cm just can meet steering operation needs completely, very low lifting limit determines the relatively little of jacking system size, add that the space hold under the plant bulk and former vehicle frame that the design can add by rational spatial design and utilization between vehicle frame drops to minimum or do not take, such as, that root crossbeam work deliberately of device hydraulic lifting oil cylinder epirelief to a certain degree can be processed, allow the space vacateed to hold oil cylinder and supporting leg below, should accomplish.The car chassis of the design is to handle for fulcrum with the geometric centre of the vertical plane of automobile to turn to substantially, turn radius only has the half of car body catercorner length namely only to need the point space of about 1.1 of length over ends of body times to meet to comprise the steering operation in need of car body revolution tune, 1/3 of traditional operation mode place space hold, taking of space is reached minimum, also be not difficult to realize from technical standpoint, the driving needs of people can be met greatly in the use of reality.

Claims

1. a pivot stud car chassis, it comprises wheel, vehicle frame, crossbeam, it is characterized in that upwards wearing by a hole piston rod being connected with a raise-lower hydraulic oil cylinder in the middle part of the crossbeam of described central frame beam, suitable for reading and the end opening in hole is all equipped with a pressure bearing, linking into an integrated entity by piston rod and crossbeam activity near the upper end being connected to piston rod by nut thread, simultaneously at upper end returning apparatus one piston rod gear of piston rod, the motor of one top band adjusting gear is vertically fixed on the crossbeam on the right side of piston rod gear, and adjusting gear is mutually meshing with piston rod gear; The cylinder body of lifting hydraulic cylinder is connected with four well-distributed supporting legs.