CN102424021B

CN102424021B - A kind of electric automatic retractable pedal of off-road vehicle

Info

Publication number: CN102424021B
Application number: CN201110356795.6A
Authority: CN
Inventors: 欧长劲; 洪尉尉; 彭宽栋
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Beijing Kaifa Yuanfeng Technology Co ltd; Jilin Airui Environmental Protection Technology Co ltd
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2014-01-29
Anticipated expiration: 2031-11-11
Also published as: CN102424021A

Abstract

An electric automatic retractable pedal for an off-road vehicle, including a foot pedal, the automatic retractable pedal also includes a telescopic mechanism, the telescopic mechanism includes a motor, a worm and a worm gear, the output shaft of the motor is connected to the worm, and the worm and the worm gear The worm gear and the first gear are fixedly connected to the first rotating shaft through a key, the rear right swing arm is fixedly connected to the first rotating shaft through a pin, the first gear meshes with the second gear, and the second gear is connected to the second gear through a key. The second rotating shaft is fixedly connected, the rear left swing arm is fixedly connected with the second rotating shaft through pins, the rear right swing arm is hinged with the front right swing arm, the rear left swing arm is hinged with the front left swing arm, and the front left swing arm is hinged with the front left swing arm. The right swing arm and the front left swing arm are hinged by a hinge pin, and the hinge pin is connected with the pedal. The invention provides an electric automatic telescopic pedal of an off-road vehicle with an automatic telescopic structure and is easy to use.

Description

A kind of automatic electric retractable footboard for cross-country

Technical field

The invention belongs to automobile apparatus, especially a kind of automatic electric retractable footboard for cross-country.

Background technology

Along with the raising of people's living standard, automobile starts in China universal, and particularly cross-country car and SUV have caused more and more customers' favor in recent years.Because the chassis of cross country car is higher, giving gets on or off the bus brings inconvenience, for the convenience of getting on or off the bus, commonly at car door downside, special-purpose pedal is installed, what ordinary vehicle type was mostly installed is fixed type pedal, it is simple in structure, easily manufactured, but affects the outward appearance of whole vehicle and the angle of attach of car load.

Summary of the invention

In order to overcome existing auto pedal, adopt fixed form, use inconvenient deficiency, the invention provides a kind of automatic telescopic structure, automatic electric retractable footboard for cross-country easy to use.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of automatic electric retractable footboard for cross-country, comprise stretcher, described automatic flexible pedal also comprises telescoping mechanism, described telescoping mechanism comprises motor, worm and worm wheel sheet, the output shaft of described motor connects with worm screw, engaged transmission between worm and wheel sheet, worm gear sheet and the first gear are connected by key and the first rotating shaft, rear right swing arm and the first rotating shaft are connected by pin, the first gear and the engagement of the second gear, described the second gear is fixedly connected with the second rotating shaft by key, rear left swing arm and described the second rotating shaft are connected by pin, described rear right swing arm and front right swing arm are hinged, described rear left swing arm and front left swing arm are hinged, described front right swing arm and front left swing arm arm are hinged by hinging pin shaft, described hinging pin shaft is connected with stretcher.

Further, described holder housing is fixedly connected with car chassis, and described motor is arranged on holder housing, and the output shaft of described motor, worm screw, worm gear sheet, the first rotating shaft and the second rotating shaft are all positioned at holder housing.

Further again, described worm shaft is arranged in the supported hole of holder housing by two double-row angular contact bal bearings, and there is an end cap supported hole one end.

Further, described end cap is with an endoporus, and worm shaft lengthens to stretch out between hole Wai，Liang Ge mechanism worm shaft and connects by additional transmission shaft.

In described first rotating shaft one end installation and holder housing axis hole, the first described rotating shaft other end is supported in thrust bearing by a shoulder, and thrust bearing is arranged in bearing cap shim.

Hinged by hinge axis between described rear right swing arm and front right swing arm, between described rear left swing arm and front left swing arm, between described rear right swing arm and front right swing arm, be provided with spacer between described rear left swing arm and front left swing arm.

Described hinging pin shaft is T connector hinging pin shaft, and the T-shaped groove of described T connector hinging pin shaft and stretcher is connected.

Described holder housing is arranged on the mounting bracket that the crossbeam with car chassis is connected by three mounting ear seats.

Described telescoping mechanism has two covers, and the hinging pin shaft of telescoping mechanism is connected with the both sides of stretcher respectively.

Beneficial effect of the present invention is mainly manifested in: 1, adopt motor to make stretcher realize linear telescopic motion through worm and wheel sheet and four swing arms, the spatial dimension of linear telescopic mode is compacter, is convenient to install on Complicated Automobile chassis.When 2, occupant gets on or off the bus, act on the logical off-load of working load on pedal and, to holder housing, improved the strained condition of rotating shaft, improved integral rigidity.3, when pedal is put work extended position and retraction reference position, motor can power-off, by worm-and-wheel gear holding device self-locking state, guarantees the accurate stop place of stretcher and safety; 4, this equipment mechanism simple and flexible, compact conformation, efficiency is high, and noiselessness adapts to vehicle scope wide.

Accompanying drawing explanation

Fig. 1 is the birds-eye view of automatic electric retractable footboard for cross-country;

Fig. 2 is the constructional drawing of automatic electric retractable footboard for cross-country;

Fig. 3 is the mechanical drive annexation schematic diagram of automatic electric retractable footboard for cross-country;

Fig. 4 is the connection structure schematic diagram of worm screw, the rotating shaft of worm gear sheet;

Fig. 5 is the connection diagram of forward and backward swing arm.

Fig. 6 is the connection diagram of hinging pin shaft and stretcher.

The specific embodiment

Below in conjunction with accompanying drawing, the invention will be further described.

With reference to Fig. 1～Fig. 6, a kind of automatic electric retractable footboard for cross-country, described motor 1 output shaft is connected through coupling sleeve 15 and driving key and worm screw 18, worm screw 18 and worm gear sheet 20 engaged transmission, worm gear sheet 20 is connected by key 21 and the first rotating shaft 5, in the first rotating shaft 5, by key and the first gear 24, be connected, the second gear that the first gear 24 is identical with being connected in another in the second rotating shaft 4 is intermeshing, rear right swing arm 7 and rear left swing arm 6 are connected by two identical connecting pins 28 and the first rotating shaft 5 and the second rotating shaft 4 respectively, rear right swing arm 7 and front right swing arm 11 are hinged by hinge axis 9, rear left swing arm 6 and front left swing arm 10 are hinged by hinge axis 8, front right swing arm 11 and front left swing arm 10 are hinged by T connector hinging pin shaft 12 again, T connector hinging pin shaft 12 tops have T connector, T connector is connected with the T-shaped groove of stretcher 13.

Through described mechanical drive annexation, the actuation movement that motor 1 produces and worm shaft is rotated through coupling sleeve 15, again through worm and wheel sheet engaged transmission, the rear right swing arm 7 that makes the first rotating shaft 5 and be connected with it produces hunting motion, also make the first gear 24 being connected with it rotate, further, the engagement of the second gear 25 that the first gear 24 is identical with the another being connected in the second rotating shaft 4, making the second rotating shaft 4 carry out in the opposite direction constant speed equal angles relative to the first rotating shaft 5 rotates, further make the rear left swing arm 6 being connected with the second rotating shaft 4 produce and rear right swing arm 7 opposite directions and the swing of constant speed equal angles.Hinged effect due to hinge axis 8, hinge axis 9 and T connector hinging pin shaft 12, make the front right swing arm 11 and the front left swing arm 10 that are hinged carry out equally the equal angular swing of constant speed, further make T connector hinging pin shaft 12 along the diad direction of four swing arms, carry out linear telescopic in horizontal surface and move, and then drive one end of connected stretcher to realize linear telescopic motion.It is hinged that the other end of described stretcher and another produce same mechanism, can produce similarly linear telescopic motion, thereby make whole pedal realize linear telescopic motion.

Described worm shaft is arranged in the supported hole of holder housing 2 by two double-row angular contact bal bearings 17, there is an end cap 19 supported hole one end, when needs drive two telescoping mechanisms with a motor, end cap 19 can be with an endoporus, worm shaft can lengthen and stretch out outside hole, then is fixed together with a transmission shaft Jiang Liangge mechanism worm shaft.

In described rotating shaft 5 one end and holder housing 2 axis holes, the other end is supported in thrust bearing 23 by a shoulder, and thrust bearing is arranged in bearing cap shim 22, has realized the Unloading Effect of the load that acts on pedal.The installation of described rotating shaft 4 adopts identical structure.

Described hinge axis 9 is for realizing the hinged of rear right swing arm 7 and front right swing arm 11, and two spacers 26 are for carrying the gap between hinged swing arm, and described hinge axis 8, for realizing the hinged of rear left swing arm 6 and front left swing arm 10, has identical connection structure.

T connector hinging pin shaft 12 is for realizing the hinged of front right swing arm 11 and front left swing arm 10, and the T-shaped groove by its T connector and stretcher 13 is connected simultaneously.

Described holder housing 2 is arranged on the mounting bracket that the crossbeam with car chassis is connected by three mounting ear seats 3, makes telescoping mechanism play the supporting role of pedal, whole stretcher and act on the load on stretcher while getting on or off the bus while bearing work.Each stretcher 13 makes whole pedal realize linear telescopic by two common expanding-contracting actions of telescoping mechanism to move.

Described mounting bracket can be different according to different vehicle customizations, reduce like this installation difficulty and have interchangeability.

During work, the flexible of stretcher controlled by controller, when car door opening, be contained in the sensing switch on car door, send signal to controller, controller is controlled motor one direction and is rotated, by said mechanism, realize the swing of stretcher and stretch out, arrive extended position, controller stops electric machine rotation after receiving the signal that puts in place, by the self-locking action of worm and wormwheel, the accurate self-locking of stretcher rests on extended position.Complete after on-board and off-board, closed door, controller is received pass gate signal, to control motor counter-rotation, by said mechanism, realize the swing of stretcher and retract, retraction puts in place, and controller is received the signal that puts in place, motor stalling power-off, device is finally retracted and is self-locking in the initial position under car chassis.The work of electronic automatic telescopic foot device with pedal had both facilitated passenger getting on/off, did not affect again the external attractive in appearance of automobile, the configuration that has simultaneously improved vehicle.

Claims

1. An electric automatic retractable pedal for an off-road vehicle comprises a pedal, and the automatic retractable pedal also includes a telescopic mechanism, and the telescopic mechanism includes a motor, a worm and a worm wheel, and the output shaft of the motor is connected with the worm, and the worm is connected with the worm The meshing transmission between the worm gears is characterized in that: the worm gear and the first gear are fixedly connected to the first rotating shaft through a key, the rear right swing arm is fixedly connected to the first rotating shaft through a pin, and the first gear meshes with the second gear. The second gear is fixedly connected with the second rotating shaft through a key, the rear left swing arm is fixedly connected with the second rotating shaft through a pin, the rear right swing arm is hinged with the front right swing arm, and the rear left swing arm is connected with the front left swing arm. The arms are hinged, and the front right swing arm and the front left swing arm are hinged by a hinge pin, and the hinge pin is connected with the pedal. the

2. The off-road vehicle electric automatic retractable pedal as claimed in claim 1, characterized in that: the installation housing is fixedly connected with the automobile chassis, the motor is installed on the installation housing, and the output shaft, worm, and worm gear of the motor , the first rotating shaft and the second rotating shaft are located in the installation housing. the

3. The off-road vehicle electric automatic retractable pedal as claimed in claim 2, characterized in that: the worm shaft is installed in the support hole of the installation housing through two double-row angular contact ball bearings, and one end of the support hole has an end cover. the

4. The off-road vehicle electric automatic retractable pedal as claimed in claim 3, characterized in that: there are two sets of the telescopic mechanism, the hinge pins of the telescopic mechanism are respectively connected to both sides of the pedal, and the end cover has a In the inner hole, the worm shaft extends out of the hole, and the worm shafts of the two mechanisms are connected by an additional transmission shaft. the

5. The off-road vehicle electric automatic retractable pedal according to claim 2, characterized in that: one end of the first rotating shaft is installed in the shaft hole of the installation housing, and the other end of the first rotating shaft is supported by a shoulder on the In thrust bearings, the thrust bearing is mounted in a bearing cap. the

6. The off-road vehicle electric automatic retractable pedal as claimed in claim 1 or 2, characterized in that: between the rear right swing arm and the front right swing arm, between the rear left swing arm and the front left swing arm The hinge shaft is hinged, and spacers are arranged between the rear right swing arm and the front right swing arm, and between the rear left swing arm and the front left swing arm. the

7. The off-road vehicle electric automatic retractable pedal according to claim 1 or 2, characterized in that: the hinge pin is a T-shaped hinge pin, and the T-shaped hinge pin of the T-shaped head is connected to the pedal. Groove fit connection. the

8. The electric automatic telescoping pedal for off-road vehicle according to claim 2, characterized in that: the installation shell is installed on the installation bracket fixedly connected with the crossbeam of the automobile chassis through three installation lugs. the