CN1702009A - Axle-distance adjustable automobiles - Google Patents

Abstract

Translated fromChinese

本发明涉及一种轴距可调节汽车，是一种前后轮之间距离可以由驾驶员主动调节的汽车，特别适用于各型四轮电动汽车。它包括有车身、动力系统、行走系统、控制系统；所述行走系统有一个用于调节后轮与前轮之间的距离的轴距调节机构，它由前传力杆、后传力杆、轴距调节丝杆、滑移螺母、轴距调节电动机、以及滑移梁组成；轴距调节电动机与轴距调节丝杆通过齿轮啮合传动、连接；滑移梁的前端与车架活动连接，其上部通过减震弹簧与车架连接，其下部有一承载凹槽，套在后轴上的支承滚轮嵌入承载凹槽内。本发明能提高汽车的起步加速、爬坡、越野、平衡等性能，并且承载和传力途径合理、制动性能好、可靠性高。

The invention relates to a vehicle with adjustable wheelbase, which is a vehicle in which the distance between the front and rear wheels can be actively adjusted by the driver, and is especially suitable for various types of four-wheel electric vehicles. It includes a vehicle body, a power system, a walking system, and a control system; the walking system has a wheelbase adjustment mechanism for adjusting the distance between the rear wheel and the front wheel, which consists of a front dowel bar, a rear dowel bar, a shaft It is composed of distance adjusting screw, sliding nut, wheelbase adjusting motor, and sliding beam; the wheelbase adjusting motor and wheelbase adjusting screw are driven and connected through gear meshing; the front end of the sliding beam is movably connected with the frame, and its upper part The shock absorbing spring is connected with the vehicle frame, and its lower part has a bearing groove, and the supporting rollers sleeved on the rear axle are embedded in the bearing groove. The invention can improve the starting acceleration, climbing, off-road, balance and other performances of the automobile, and has reasonable bearing and force transmission paths, good braking performance and high reliability.

Description

Axle-distance adjustable automobiles

Technical field

The present invention relates to a kind of axle-distance adjustable automobiles, belong to automobile technical field, is that distance can be specially adapted to various four-wheel electric automobile by the automobile of chaufeur active adjustment between a kind of front and back wheel.

Background technology

Present automotive research all is being devoted to car acceleration, is steadily being reached the raising of aspect performance such as cross-country.Yet existing wheelbase fixed type automobile can not get bringing into play fully owing to the restriction that is subjected to ground attaching coefficient makes the power of driving engine when starting-up to speed, thereby has influenced the acceleration capability of starting low-speed stage.In addition, wheelbase fixed type automobile is if improvement becomes axle-distance adjustable automobiles, and then its off-road capability, grade climbing performance and stationary performance etc. also can be improved.In the prior art, a kind of adjustable technical scheme of wheelbase of diesel locomotive is arranged, still, spring on its back axle bears whole levels and vertical load simultaneously, force path is unreasonable, and its screw mandrel that is used for the adjusting shaft distance bears horizontal actuator force constantly, and reliability is not high.

Summary of the invention

The objective of the invention is to, overcome the shortcoming of prior art, the axle-distance adjustable automobiles that a kind of bearing load and force path are reasonable, drive reliably, can improve starting acceleration performance, grade climbing performance, off-road capability, balance and the deceleration and stopping performance of automobile is provided.

Technical scheme of the present invention is: described axle-distance adjustable automobiles, and it includes vehicle body, power system, running gear, control system; Described running gear has a wheelbase regulating mechanism that is used to regulate the distance between trailing wheel and the front-wheel; Described wheelbase regulating mechanism is mainly regulated screw mandrel, slip nut, wheelbase adjusting electrical motor and slippage beam by preceding dowel bar, back dowel bar, wheelbase and is formed; Preceding dowel bar one end connects to ground, and the other end flexibly connects with the slip nut that is sleeved on the wheelbase adjusting screw mandrel; The inboard load bearing of back dowel bar one end and trailing wheel flexibly connects, and the other end flexibly connects with the slip nut that is sleeved on the wheelbase adjusting screw mandrel; Wheelbase regulate electrical motor and wheelbase adjusting screw mandrel by meshed transmission gear, be connected; Wheelbase regulates the screw mandrel two ends and vehicle frame flexibly connects; The front end of slippage beam and vehicle frame flexibly connect, and its top connects to ground by damping spring, and there is a carrying groove its underpart; Supporting rollern is enclosed within on the rear axle, and embeds in the carrying groove.

Technique effect of the present invention is:

1, can change its maximum acceleration from rest by regulating the distribution of axle load on front and back wheel, and the adjusting of the change that axle load distributes by wheelbase realizes.

2, improve the steerability of automobile.Automobile will move behind the rear axle when running at high speed, and the axle load that can increase front axle is transferred, thereby improves the steerability energy of automobile.

3, meet muddy pitting and trailing wheel when skidding at automobile, just can cross the mud pit for the method that general-utility car has only usefulness to fill out hole or firmly go-cart, and, then can pass through a motion trailing wheel for the adjustable automobile of rear axle, make vehicle body keep motionless, thus make trailing wheel " time " cross the mud pit.

4, reduce the vibration intensity of automobile.On the three-dimensional coordinate surface chart by the speed of a motor vehicle, wheelbase and three factors draftings of vibration intensity a trough band that the body vibrations intensity ratio is less is arranged, thereby can reach the stability of taking preferably by the relation between the adjusting shaft distance and the speed of a motor vehicle.

5, the spring bearing load on the slippage beam is reasonable, and the car load force path is reasonable, and its screw mandrel that is used for the adjusting shaft distance to bear propulsive effort reasonable, the reliability height.

Description of drawings

The chassis structure schematic top plan view of Fig. 1, axle-distance adjustable automobiles;

The chassis structure schematic side view of Fig. 2, axle-distance adjustable automobiles;

The constructional drawing of Fig. 3, slippage beam;

The A-A cutaway view of Fig. 4, Fig. 3;

The structure schematic top plan view of Fig. 5, wheelbase regulating mechanism;

The structure schematic side view of Fig. 6, wheelbase regulating mechanism;

The structure partial longitudinal section of Fig. 7, wheelbase regulating mechanism;

Fig. 8, power type axle-distance adjustable automobiles embodiment lateral plan.

Each member label and respective name are in accompanying drawing 1-8: the 1-front-wheel, bearing before the 2-, dowel bar before the 3-, the 4-slip nut, dowel bar behind the 5-, the 6-locating clip, the 7-trailing wheel, the 8-vehicle frame, the 9-wheelbase is regulated electrical motor, 10-bending moment gear, the 11-wheelbase is regulated screw mandrel, 12-supports pulley, the 13-gear, the spherical hinge of 14-, the 15-positioning motor, the flexible transmission rope of 16-, 17-locatees screw mandrel, 18-carries groove, the 19-non-slip rubber block, the 20-moveable hinge, the 21-locating clip arm of force, 22-locating clip bearing, the 23-support roller, the inboard load bearing of 24-trailing wheel, the 25-damping spring, 26-slippage beam, the cross-sectional plane of 27-slippage screw mandrel, the rolling truss of 28-screw mandrel end portion supports pulley, 29-locatees Baltimore groove, the end face dotted line of 30-slippage beam bottom dead slot, the 31-control system, the 32-vehicle body, the control band of 33-trailing wheel, the 34-battery, 35-road wheel electrical motor, the 36-running gear, the 37-rear axle, the 38-jam nut.

The specific embodiment

In conjunction with the accompanying drawings and embodiments, it is as follows that the invention will be further described:

Accompanying drawing 1-8 is the embodiment of a kind of axle-distance adjustable automobiles of the present invention, and as shown in Figure 8, it has a vehicle body 32, includes the power system of battery 34 and road wheel electrical motor 35, running gear 36, control system 31; Shown in Fig. 1-7, described running gear has a wheelbase regulating mechanism that is used to regulate the distance betweentrailing wheel 7 and the front-wheel 1; Described wheelbase regulating mechanism is mainly regulatedscrew mandrel 11,slip nut 4, wheelbase adjustingelectrical motor 9 and slippage beam 26 (shown in Fig. 2,3,4,7) by precedingdowel bar 3, back dowel bar, wheelbase and is formed; Precedingdowel bar 3 one ends are connected withvehicle frame 8, and the other end flexibly connects with theslip nut 4 that is sleeved on the wheelbase adjustingscrew mandrel 11; The inboard load bearing 24 ofback dowel bar 5 one ends and trailing wheel flexibly connects, and the other end flexibly connects with theslip nut 4 that is sleeved on the wheelbase adjustingscrew mandrel 11; Wheelbase regulateelectrical motor 9 and wheelbase adjustingscrew mandrel 11 bygear 10,13, engaged transmission, be connected; Wheelbase regulatesscrew mandrel 11 two ends andvehicle frame 8 flexibly connects; The front end ofslippage beam 26 andvehicle frame 8 flexibly connect, and its top is connected withvehicle frame 8 by dampingspring 25, and there is acarrying groove 18 its underpart; Supportingrollern 23 is enclosed within on therear axle 37, and embeds in thecarrying groove 18; The invention described above additional, technical scheme is more specifically:

As shown in Figure 7, respectively there is a locating clip bearing 22 that is fixed on therear axle 37 both sides of supportingrollern 23; The locating clip arm offorce 21 is hinged bymoveable hinge 20 and locating clip bearing 22;Jam nut 38 is hinged bymoveable hinge 20 and the locating clip arm offorce 21 upper ends; Twojam nuts 38 are by 17 series connection of location screw mandrel;

Shown in Fig. 1,5, precedingdowel bar 3 and being connected ofvehicle frame 8 be cut with scissors by the two-dimensional activity that is fixed on the precedingbearing 2 on thevehicle frame 8 20 hinged;Back dowel bar 5 and the inboard load bearing 24 of trailing wheel be cut with scissors bysphere 14 hinged;

Shown in Fig. 1,5,6, wheelbase is regulated on thescrew mandrel 11 and is with twoslip nuts 4; The rear side ofslip nut 4 is hinged withback dowel bar 5 bysphere hinge 14, and the front side ofslip nut 4 is hinged by two-dimensional activity hinge 20 and precedingdowel bar 3;

Shown in Fig. 1,2,5, it is symmetrical screw mandrels that wheelbase is regulatedscrew mandrel 11, the position, intermediate portion to both sides have hand of rotation opposite, can drive the screw thread that twoslip nuts 4 move to centre or two ends simultaneously; It is to flexibly connect by therolling truss 28 that is fixed on thevehicle frame 8 that wheelbase is regulatedscrew mandrel 11, and wheelbase is regulatedscrew mandrel 11 two ends respectively asupport pulley 12 that is embedded in the rollingtruss 28;

As shown in Figure 7,6 times end bearings of locatingclip 22 are stationkeeping unmodified bearing; Thenon-slip rubber block 19 of a high strength, rub resistance all is equipped with in the inboard of two locating clip arm offorces 21;

As shown in Figure 7, the screw thread on thescrew mandrel 17 of location is identical with wheelbase adjustingscrew mandrel 11;Flexible transmission rope 16 1 ends are connected withpositioning motor 15, and the other end is connected withlocation screw mandrel 17;

As shown in Figure 3, have when locatingclip 6 moves to an appointed positions wheelbase then regulateelectrical motor 9 lockings onslippage beam 26 outer surfaces and align member that positioningmotor 15 starts, this align member is location Baltimore groove 29, or the fixed pivot of welding.

Fig. 8 is a power type axle-distance adjustable automobiles embodiment scheme drawing, and it is road wheel electrical motor 35 that its walking drives power.When walking driving power is combustion engine, then be another type of the present invention embodiment.

Claims (8)

1, a kind of axle-distance adjustable automobiles is characterized in that, it includes vehicle body (32), power system (34,35), running gear (36) and control system (31); Described running gear has a wheelbase regulating mechanism that is used to regulate the distance between trailing wheel (7) and the front-wheel (1); Described wheelbase regulating mechanism is mainly regulated screw mandrel (11), slip nut (4), wheelbase adjusting electrical motor (9) and slippage beam (26) by preceding dowel bar (3), back dowel bar (5), wheelbase and is formed; Preceding dowel bar (3) one ends are connected with vehicle frame (8), and the other end flexibly connects with the slip nut (4) that is sleeved on the wheelbase adjusting screw mandrel (11); The inboard load bearing of back dowel bar (5) one ends and trailing wheel (24) flexibly connects, and the other end flexibly connects with the slip nut (4) that is sleeved on the wheelbase adjusting screw mandrel (11); Wheelbase regulate electrical motor (9) and wheelbase adjusting screw mandrel (11) by gear (10,13) engaged transmission, be connected; Wheelbase regulates screw mandrel (11) two ends and vehicle frame (8) flexibly connects; The front end of slippage beam (26) and vehicle frame (8) flexibly connect, and its top is connected with vehicle frame (8) by damping spring (25), and there is a carrying groove (18) its underpart; Supporting rollern (23) is enclosed within on the rear axle (37), and embeds in the carrying groove (18).

2, want 1 described automobile according to right, it is characterized in that, respectively there is a locating clip bearing (22) that is fixed on the rear axle (37) both sides of supporting rollern (23); The locating clip arm of force (21) is hinged by moveable hinge (20) and locating clip bearing (22); Jam nut (38) is hinged with the locating clip arm of force (21) upper end by moveable hinge (20); Two jam nuts (38) are by location screw mandrel (17) series connection.

3, want 1 described automobile according to right, it is characterized in that, preceding dowel bar (3) is hinged by the two-dimensional activity hinge (20) that is fixed on the preceding bearing (2) on the vehicle frame (8) with being connected of vehicle frame (8); Back dowel bar (5) is hinged by sphere hinge (14) with the inboard load bearing of trailing wheel (24).

4, want 1 described automobile according to right, it is characterized in that, wheelbase is regulated on the screw mandrel (11) and is with two slip nuts (4); The rear side of slip nut (4) is hinged with back dowel bar (5) by spherical hinge (14), and the front side of slip nut (4) is hinged by two-dimensional activity hinge (20) and preceding dowel bar (3).

5, want 1 described automobile according to right, it is characterized in that, it is a symmetrical screw mandrel that wheelbase is regulated screw mandrel (11), the position, intermediate portion to both sides have hand of rotation opposite, can drive the screw thread that two slip nuts (4) move to centre or two ends simultaneously; It is to flexibly connect by the rolling truss (28) that is fixed on the vehicle frame (8) that wheelbase is regulated screw mandrel (11), and wheelbase is regulated screw mandrel (11) two ends respectively a support pulley (12) that is embedded in the rolling truss (28).

6, want 1 described automobile according to right, it is characterized in that, locating clip (6) end bearing (22) down is a stationkeeping unmodified bearing; The non-slip rubber block (19) of a high strength, rub resistance all is equipped with in the inboard of two locating clip arm of forces (21).

7, want 1 described automobile according to right, it is characterized in that, the screw thread on the location screw mandrel (17) is identical with wheelbase adjusting screw mandrel (11); Flexible transmission rope (16) one ends are connected with positioning motor (15), and the other end is connected with location screw mandrel (17).

8, automobile according to claim 1, it is characterized in that, there is when locating clip (6) moves to an appointed positions wheelbase then regulate electrical motor (9) locking on slippage beam (26) outer surface and align member that positioning motor (15) starts, this align member is location Baltimore groove (29), or the fixed pivot of welding.

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