CN2625200Y - Wheel base adjustable automobile - Google Patents

Wheel base adjustable automobile Download PDF

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Publication number
CN2625200Y
CN2625200Y CN 03254484 CN03254484U CN2625200Y CN 2625200 Y CN2625200 Y CN 2625200Y CN 03254484 CN03254484 CN 03254484 CN 03254484 U CN03254484 U CN 03254484U CN 2625200 Y CN2625200 Y CN 2625200Y
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CN
China
Prior art keywords
wheel
support column
automobile
automotive
nut seat
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 03254484
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Chinese (zh)
Inventor
曾令斌
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Wuhan University WHU
Original Assignee
Wuhan University WHU
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Filing date
Publication date
Application filed by Wuhan University WHU filed Critical Wuhan University WHU
Priority to CN 03254484 priority Critical patent/CN2625200Y/en
Application granted granted Critical
Publication of CN2625200Y publication Critical patent/CN2625200Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an automobile with an adjustable distance between shafts, which is suitable for large and medium-sized passenger cars, trucks, large-sized saloon cars, off-road vehicles and racing cars and comprises an automotive body, a drive system, a gearing system and an operating system. Wherein, the gearing system is provided with a tread adjustor to adjust distance between a front wheel shaft and a back wheel shaft and is composed of a groove frame as a part of an automotive frame, a set of bearing wheel capable of rolling frontward and backward in the groove frame and a set of bearing post moveably connected with bearing shafts of the bearing wheel and arranged on an automotive rearmost axle. In addition, an upper lateral face of the bearing post is provided with a nut seat to make a half shaft and the rearmost axle move horizontally along the automotive body through the bearing post. The nut seat is provided with a screw gear pair composed of a drive nut and a screw rod. The other end is moveably connected with the automotive frame. The utility model improves starting acceleration, grade climbing, cross country, balancing, braking and other automotive performances.

Description

The wheelbase adjustable automobile
Technical field
The utility model relates to the wheelbase adjustable automobile, is that a kind of wheelbase can belong to automobile technical field by the automobile of chaufeur active adjustment, is specially adapted to large and medium-sized passenger vehicle, lorry, full-size car and cross-country car, racing car.
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 present wheelbase fixed type automobile (removing four wheel drive) is subjected to the restriction of ground attaching coefficient and makes the power of driving engine can not get bringing into play fully when starting-up to speed, thereby has influenced the acceleration capability of starting low-speed stage.In addition, the off-road capability of wheelbase fixed type automobile, grade climbing performance (removing the four wheel drive type) and stationary performance also have the leeway of further lifting.In the prior art, have that a kind of patent No. is 87213743, name is called: changeable wheelbase formula automobile, the disclosed technical scheme of this patented technology relates to a kind of goods carrying vehicle, it is characterized in that automotive frame is made of interior cover beam and the overcoat beam that movable sleeve stacks, the end of overcoat beam is fixed with pressure drive cylinder seat, be fixed with jar support on the interior cover beam, the cylinder body of pressure drive cylinder is installed on the cylinder seat, one end of cylinder push rod is connected with piston, be sealed among the cylinder body, the other end of cylinder push rod is contained on the jar support.The pressure drive cylinder is released interior cover beam from the overcoat beam, thereby makes vehicle frame elongated, changes wheelbase.Its shortcoming is: this scheme is to realize that by the length that changes automotive frame and compartment wheelbase changes, so the change amount is big, and adopts pressure drive cylinder formula load transfer device, so speed of response is slow, can not satisfy the instant requirement that changes of wheelbase; In addition, what this scheme related to is a kind of load-carrying lorry, and Applicable scope is also very narrow.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of wheelbase adjustable automobile that can improve starting acceleration performance, grade climbing performance, off-road capability, balance and the deceleration and stopping performance of automobile is provided.
The technical solution of the utility model is: described wheelbase adjustable automobile, and it includes vehicle body, power system, running gear, operating system; Described running gear has a wheelspan control apparatus that is used to regulate front wheel spindle and hind axle distance, it comprises: a groove-shaped frame that is both an automotive frame part, one cover can be in groove-shaped frame the bogie wheel of scroll forward and backward, the support column that the bolster of one cover and bogie wheel flexibly connects, this support column is installed on the automobile axle; The cross-sectional plane of described groove-shaped frame is inverted U-shaped, and the U-shaped two side respectively has slit one, and the bolster of bogie wheel passes this slit and on being fixed on the support column; The upper end medial surface of support column is fixed with and can makes semiaxis, the back axle nut seat along the translation of vehicle body fore-and-aft direction by support column, a screw thread transmission that is made of driving nut and screw mandrel is arranged in this nut seat, wherein an end of screw mandrel is connected with transmission gearbox, and the other end and crossbeam flexibly connect and the location; Described transmission gearbox input shaft is connected with motor, and wheel transmission shaft and integrated case flexibly connect.
Technique effect of the present utility model is:
1, can change its maximum acceleration from rest by regulating axle load, and the change of axle load realizes by changing wheelbase.
2, improve the grade climbing performance of automobile.When climbing, increase the gradient of climbing by reducing wheelbase.
3, improve the steerability of automobile.Automobile will move behind the rear axle when running at high speed, and can increase the axle load of front axle, so improve the steerability of automobile.
4, improve the stationarity of automobile.In the cruising of automobile, when trailing wheel is met big obstacle, at this moment, trailing wheel by a small margin after move and can obviously increase surge time, the vibration intensity of vehicle body is reduced.
5, meet muddy pitting and trailing wheel when skidding at automobile, have to just can cross the mud pit for general-utility car, and, then can pass through a motion trailing wheel for the maneuverable automobile of rear axle with the method for filling out hole or firmly go-cart, make vehicle body motionless, thus make trailing wheel " time " cross the mud pit and continue to move ahead.
6, rear axle moves forward when automobile brake, can reduce the possibility of rear lock, has also increased the stopping distance of trailing wheel, thereby can reduce the braking miles of relative movement of vehicle body.
Stability when 7, improving automobile downhill.The whole vehicle body vibration of the car that wheelbase is big is less, can improve its stability.
8, reduce the vibration intensity of automobile.Form the three-dimensional coordinate curved surface by the speed of a motor vehicle, wheelbase and three factors of vibration intensity, can reach the stability of taking preferably by the relation between adjusting shaft distance and speed.
Description of drawings
Fig. 1 is the birds-eye view at the following position of vehicle frame of back axle moveable type automobile,
Fig. 2 is interior along the double part sectional view of facing of direction shown in the arrow for Fig. 1 frame of broken lines.
Fig. 3 is for being labeled as 10 parts detail drawing among Fig. 2;
Fig. 4 is the A-A cutaway view among Fig. 2.Frame of broken lines is interior along the total cutaway view of the double office of facing of direction shown in the arrow.
Fig. 5 is the automobile part sectional view.
Fig. 1--in-5: 1-wheelspan control apparatus, the 2-trailing wheel, 3-wheel transmission shaft, the 4-motor, the 5-transmission gearbox, the 6-groove-shaped frame, the 7-nut seat, the 8-screw mandrel, the 9-bogie wheel, the 10-driving nut, the 11-buffer spring, the 12-support column, the 13-semiaxis, the 14-back axle, the 15-front-wheel, the 16-crossbeam, the 17-motor transmission shaft, the bolster of 18-bogie wheel, the integrated case of 19-, the 20-slit, the 21-vehicle body, the 22-power system, the 23-running gear, the 24-maneuvering system, the 25-front wheel spindle, the 26-hind axle.
The specific embodiment
It is as follows that the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:
Be a kind of embodiment of wheelbase adjustable automobile shown in Fig. 1-5, it has a vehicle body 21, power system 22, running gear 23, operating system 24; Also have Lighting System, described running gear has a wheelspan control apparatus 1 that is used to regulate front wheel spindle 25 and hind axle 26 distances; This wheelspan control apparatus 1 has a groove-shaped frame 6 that is both automotive frame 16 parts, is positioned at the rear portion of vehicle body; One cover can be in groove-shaped frame 6 bogie wheel 9 of scroll forward and backward, two bogie wheels are generally respectively arranged in left and right groove-shaped frame; The support column 12 that the bolster 18 of one cover and bogie wheel 9 flexibly connects, a described cover is that left and right groove-shaped frame respectively is connected with a support column; This support column 12 is installed on the automobile axle 14; The cross-sectional plane of described groove-shaped frame 6 is inverted U-shaped, and the U-shaped two side respectively has slit 20 one, and the bolster 18 of bogie wheel 9 passes this slit 20 and is fixed on support column 12 upper ends; The upper end medial surface of support column 12 is fixed with and can makes semiaxis 13, back axle 14 nut seat 7 along the translation of vehicle body fore-and-aft direction by support column 12, a screw thread transmission that is made of driving nut 10 and screw mandrel 8 is arranged in this nut seat 7, wherein an end of screw mandrel 8 is connected with transmission gearbox 5, and the other end and crossbeam 16 flexibly connect the location; The input shaft of described transmission gearbox 5 is connected with motor 4, and wheel transmission shaft 3 flexibly connects with integrated case 19.Described motor 4 passes to screw mandrel 8 by motor transmission shaft 17 with driving torque, because of screw mandrel 8 and driving nut 10 constitute transmission, and nut 10 is fixed on the inboard of groove-shaped frame 6, the other end of screw mandrel 8 and crossbeam 16 flexibly connect by bearing and this is positioned on the crossbeam 16 by bearing fixed seat, the rotating torque that nut 10 is about to himself changes nut into and moves inertia at the vehicle body vertical equity, this driving nut 10 and then 12 motions of drive supporting jack-post, change vehicle wheel base thereby drive the back axle motion, this moment, the wheel transmission shaft changed length under back axle drives; For making transmission symmetry, steady, screw mandrel 8 has two pairs with the transmission that driving nut 10 is constituted, and is installed in respectively on groove-shaped frame 6 two sides.
The additional technical feature of the utility model the foregoing description is:
For reducing vibrations, the outside face of bogie wheel 9 is wrapped with high strength elastic rubber, and the bolster 18 of its both sides passes the slit 20 of groove-shaped frame 6 two sides and is fixed on the upper end of support column 12;
In order to realize changing reposefully vehicle wheel base, the buffer spring 11 that can make driving nut 10 transmit buffer action power to nut seat 7 is arranged in the nut seat 7;
For making wheel transmission shaft 3 adapt to the change of spacing, described wheel transmission shaft 3 flexibly connects with castellated shaft with integrated case 19, can stretch and can contract so that guarantee wheel transmission shaft 3;
Automatically controlled with realization rapidly for the operation that makes adjusting axletree distance, motor 4 is selected the motor of the positive and negative both direction rotation of energy for use.

Claims (5)

1, a kind of wheelbase adjustable automobile, it includes vehicle body (21), power system (22), running gear (23), operating system (24); It is characterized in that, described running gear has a wheelspan control apparatus (1) that is used to regulate front wheel spindle (25) and hind axle (26) distance, it comprises: a groove-shaped frame (6) that is both automotive frame (a 16) part, one cover can be in groove-shaped frame (6) bogie wheel (9) of scroll forward and backward, the support column (12) that the bolster (18) of one cover and bogie wheel (9) flexibly connects, this support column (12) is installed on the automobile axle (14); The cross-sectional plane of described groove-shaped frame (6) is inverted U-shaped, and respectively there is one slit (20) the U-shaped two side, and the bolster (18) of bogie wheel (9) passes this slit (20) and is fixed on support column (12) upper end; The upper end medial surface of support column (12) is fixed with and can makes semiaxis (13), back axle (14) nut seat (7) along the translation of vehicle body fore-and-aft direction by support column (12), a screw thread transmission that is made of driving nut (10) and screw mandrel (8) is arranged in this nut seat (7), wherein an end of screw mandrel (8) is connected with transmission gearbox (5), and the other end and crossbeam (16) flexibly connect and the location; Described transmission gearbox (5) input shaft is connected with motor (4), and wheel transmission shaft (3) flexibly connects with integrated case (19).
2, automobile according to claim 1 is characterized in that, the outside face of described bogie wheel (9) is wrapped with high strength elastic rubber, and the bolster of its both sides (18) passes the slit (20) of groove-shaped frame (6) two side and is fixed on the upper end of support column (12).
3, automobile according to claim 1 is characterized in that, the buffer spring (11) that can make driving nut (10) transmit buffer action power to nut seat (7) is arranged in the nut seat (7).
4, automobile according to claim 1 is characterized in that, described wheel transmission shaft (3) flexibly connects with castellated shaft with integrated case (19).
5, automobile according to claim 1 is characterized in that, described motor (4) is the electrical motor that the positive and negative both direction of energy rotates.
CN 03254484 2003-06-17 2003-06-17 Wheel base adjustable automobile Expired - Fee Related CN2625200Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03254484 CN2625200Y (en) 2003-06-17 2003-06-17 Wheel base adjustable automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03254484 CN2625200Y (en) 2003-06-17 2003-06-17 Wheel base adjustable automobile

Publications (1)

Publication Number Publication Date
CN2625200Y true CN2625200Y (en) 2004-07-14

Family

ID=34253575

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03254484 Expired - Fee Related CN2625200Y (en) 2003-06-17 2003-06-17 Wheel base adjustable automobile

Country Status (1)

Country Link
CN (1) CN2625200Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103317987A (en) * 2013-05-16 2013-09-25 姬亮 Off-road vehicle with wheels capable of being lifted and landed freely
CN103496297A (en) * 2013-10-24 2014-01-08 张长清 Paddy field ridge crossing mechanism on self-propelled chassis
CN107655705A (en) * 2017-11-09 2018-02-02 西华大学 A kind of automobile brake test bed wheelbase regulating device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103317987A (en) * 2013-05-16 2013-09-25 姬亮 Off-road vehicle with wheels capable of being lifted and landed freely
CN103317987B (en) * 2013-05-16 2015-10-28 姬亮 The free landing cross-country car of a kind of wheel
CN103496297A (en) * 2013-10-24 2014-01-08 张长清 Paddy field ridge crossing mechanism on self-propelled chassis
CN103496297B (en) * 2013-10-24 2015-11-25 张长清 Paddy field self propelled chassis Yue Geng mechanism
CN107655705A (en) * 2017-11-09 2018-02-02 西华大学 A kind of automobile brake test bed wheelbase regulating device

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee