CN211223589U

CN211223589U - Electronic stop device of steering wheel

Info

Publication number: CN211223589U
Application number: CN201922004001.4U
Authority: CN
Inventors: 储斌
Original assignee: Jiangyue Wuhan Control Technology Co ltd
Current assignee: Jiangyue Wuhan Control Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-11
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a steering wheel electron stop device, including steering wheel, steering spindle, electromagnetic braking ware, encoder, steering spindle upper end and steering wheel fixed connection, the lower extreme passes through elastic coupling and is connected with the encoder, and steering spindle outside lower part is located to the electromagnetic braking ware cover, including upper bracket, undersetting, the upper bracket is through first bearing and steering spindle swivelling joint, and the undersetting passes through parallel key and steering spindle fixed connection, is equipped with the friction disc between upper bracket and the undersetting, and the friction disc can brake the steering spindle. The steering wheel electronic limiting device can enable a vehicle which adopts a steering wheel and an encoder to carry out steering control to have an angle limiting function, and the limiting angle can be flexibly set according to actual needs; meanwhile, the driver can sense the steering state of the vehicle, the driving direction is enhanced, and the driving safety is improved.

Description

Electronic stop device of steering wheel

Technical Field

The utility model relates to a vehicle turns to the field, concretely relates to steering wheel electron stop device.

Background

At present, on an engineering vehicle, because the steering power is large or the number of steering wheels is large, especially when multi-shaft steering or multi-wheel steering is involved, mechanical steering and hydraulic steering are difficult to realize, electric proportional hydraulic steering is generally adopted, an encoder is installed below a steering wheel, and an angle signal of the steering wheel is acquired to control actuating elements such as a proportional valve and a hydraulic oil cylinder to perform a steering function. The mechanical steering system of the traditional vehicle has a fixed steering angle, and when the wheels rotate to the extreme positions, the steering wheel is not turned. And adopt the mode of steering wheel plus encoder, the steering wheel does not have fixed angle of turning to, and after steering mechanism moved extreme position, the steering wheel still can unlimited rotation, can lead to the driver not knowing the steering state of vehicle, does not know whether the directive wheel targets in place, and the driving direction feels the disappearance, has the potential safety hazard, so need introduce a steering wheel electron stop device who has the angle spacing.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electronic stop device of steering wheel according to the angle signal of encoder, adopts electromagnetic braking ware restriction steering wheel's steering angle, effectively improves driver's the direction of turning to and feels and drives the security.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides an electronic stop device of steering wheel, includes steering wheel, steering spindle, electromagnetic braking ware, encoder, steering spindle upper end and steering wheel fixed connection, the lower extreme passes through elastic coupling and is connected with the encoder, the steering spindle outside lower part is located to the electromagnetic braking ware cover, is equipped with the friction disc in the electromagnetic braking ware, the friction disc can brake the steering spindle.

Preferably, the electromagnetic brake comprises an upper support and a lower support, the upper support is rotatably connected with the steering shaft through a first bearing, the lower support is fixedly connected with the steering shaft through a flat key, and a friction plate is arranged between the upper support and the lower support.

Preferably, the steering wheel further comprises a cab inner mounting plate, a through hole for the steering shaft to pass through is formed in the center of the cab inner mounting plate, and the steering wheel electronic limiting device is mounted in the cab through the cab inner mounting plate.

Preferably, the steering column and the dustproof sleeve are sleeved outside the steering shaft, and the upper end and the lower end of the dustproof sleeve are fixedly connected with the steering column and the cab inner mounting plate respectively.

Preferably, the automobile steering system further comprises a bearing support, the upper end and the lower end of the bearing support are fixedly connected with the cab inner mounting plate and the upper support of the electromagnetic brake respectively, and a second bearing is arranged in the bearing support and connected with the steering shaft through the second bearing.

Preferably, the encoder further comprises a mounting bracket, the upper end of the mounting bracket is fixedly connected with the bearing support, and the encoder is mounted at the lower end of the mounting bracket.

Due to the structure, the beneficial effects of the utility model reside in that:

1. the steering wheel electronic limiting device can enable a vehicle which adopts a steering wheel and an encoder to carry out steering control to have an angle limiting function, and the limiting angle can be flexibly set according to actual needs;

2. adopt the steering wheel electron stop device of this application, can make the steering state of driver perception vehicle, the direction sense of reinforcing driving improves driving safety nature.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic view of the mounting structure of the electronic limiting device of the steering wheel of the present invention.

Fig. 2 is a schematic structural diagram of the electromagnetic brake of the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the present embodiment provides an electronic steering wheel limiting device, which includes a steering wheel 1, a steering shaft 10, an electromagnetic brake 5 and an encoder 7, wherein the upper end of the steering shaft 10 is fixedly connected to the steering wheel 1, the lower end of the steering shaft is connected to the encoder 7 through an elastic coupling 8, the electromagnetic brake 5 is sleeved on the lower portion of the outer side of the steering shaft 10, a friction plate 53 is arranged in the electromagnetic brake 5, and the friction plate 53 can brake the steering shaft 10.

The steering wheel 1 and the steering shaft 10 are parts for a steering function of a vehicle.

The electromagnetic brake 5 comprises an upper support 51 and a lower support 52, the upper support 51 is rotatably connected with the steering shaft 10 through a first bearing 12, the lower support 52 is fixedly connected with the steering shaft 10 through a flat key 9, and a friction plate 53 is arranged between the upper support 51 and the lower support 52. The electromagnetic brake 5 is a standard element which can generate braking torque after being electrified, can select the model YS-B-100-20KG, can be freely combined, separated or braked according to the requirement, and has the advantages of compact structure, simplicity in operation, sensitive response, long service life, reliability in use, easiness in realizing remote control and the like.

The encoder 7 is a device that compiles, converts, and/or formats signals or data into a form of signals that can be communicated, transmitted, and stored. In the present embodiment, the encoder 7 is a conventional encoder, and may be of a type S38-L3V7, and the encoder 7 can convert the angle information of the steering wheel 1 into an electric signal.

The elastic coupling 8 is a connecting element capable of compensating position errors, is used for connecting the steering shaft 10 and the encoder 7, can compensate eccentric errors in the installation process, and ensures the working precision of the encoder 7.

Still including cab

interior mounting plate

11, 11 central authorities of cab interior mounting plate are equipped with the through-hole that supplies steering spindle 10 to pass, and cab interior mounting plate 11 can play fixed element's effect, steering wheel electron stop device install in the cab through cab interior mounting plate 11.

Still include steering column 2, dirt proof boot 3, the steering spindle 10 outside is located to steering column 2 and dirt proof boot 3 all cover for protect and prevent dust steering spindle 10, the upper and lower both ends of dirt proof boot 3 respectively with

steering column

2 and 11 fixed connection of cab interior hardboard.

The steering wheel further comprises a bearing support 4, the upper end and the lower end of the bearing support 4 are fixedly connected with the cab inner mounting plate 11 and the upper support 51 of the electromagnetic brake 5 respectively, and a second bearing 13 is arranged in the bearing support 4 and connected with the steering shaft 10 through the second bearing 13.

The encoder is characterized by further comprising a mounting bracket 6, wherein the mounting bracket 6 is a structural member for mounting an encoder 7, the upper end of the mounting bracket 6 is fixedly connected with the bearing support 4, and the encoder 7 is mounted at the lower end of the mounting bracket 6.

The working principle of the structure is as follows:

the utility model provides a steering wheel electron stop device uses with the control system cooperation of vehicle, and when rotating steering wheel 1, steering wheel 1 drives steering spindle 10 and rotates, and steering spindle 10 drives encoder 7 through elastic coupling 8 and rotates, and encoder 7 turns into the turned angle of steering wheel 1 the signal of telecommunication real-time output and gives the control system of vehicle.

A lower support 52 of the electromagnetic brake 5 is connected with the steering shaft 10 through a flat key 9, an upper support 51 is fixedly connected with a bearing support 4, and a friction plate 53 is arranged between the upper support 51 and the lower support 52; when the control system of the vehicle does not send a control current signal to the electromagnetic brake 5, the friction plate 53 is not tightly held, and the upper support 51 and the lower support 52 can rotate mutually. When the steering wheel 1 and the steering shaft 10 rotate, the lower bracket 52 rotates along with the steering shaft 10.

When the vehicle turns to the limit angle of settlement (limit angle value can set up according to actual need) to left (or right), encoder 7 is according to the angle signal that sets for in advance, send the control system of signal of telecommunication for the vehicle, the vehicle is receiving during the signal of telecommunication that encoder 7 sent, send intermittent control current signal and give electromagnetic braking ware 5, friction disc 53 can hold steering spindle 10 tightly when having control current signal, brake steering spindle 10, steering spindle 10 drives steering wheel 1 and blocks intermittently, beat the directional resistance increase left (or right), the driver can know the vehicle and has rotated the limit angle this moment, thereby play the effect of angle restriction. When a driver turns the steering wheel 1 to the right (or left) in a reverse direction, the encoder 7 detects that the steering shaft 10 rotates in the reverse direction, the information of the reverse rotation angle of the steering wheel 1 is converted into an electric signal and is sent to the vehicle, the vehicle stops sending an intermittent control current to the electromagnetic brake 5 after receiving the reverse rotation signal transmitted by the encoder 7, and the vehicle can smoothly turn to the right (or left).

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electronic stop device of steering wheel which characterized in that: including steering wheel, steering spindle, electromagnetic braking ware, encoder, steering spindle upper end and steering wheel fixed connection, the lower extreme passes through elastic coupling and is connected with the encoder, steering spindle outside lower part is located to the electromagnetic braking ware cover, is equipped with the friction disc in the electromagnetic braking ware, the friction disc can brake the steering spindle.

2. The electronic steering wheel limiting device of claim 1, wherein: the electromagnetic brake comprises an upper support and a lower support, the upper support is rotatably connected with the steering shaft through a first bearing, the lower support is fixedly connected with the steering shaft through a flat key, and a friction plate is arranged between the upper support and the lower support.

3. The electronic steering wheel limiting device of claim 2, wherein: still including the cab interior mounting plate, cab interior mounting plate central authorities are equipped with the through-hole that supplies the steering spindle to pass, steering wheel electron stop device passes through the cab interior mounting plate and installs in the cab.

4. The electronic steering wheel limiting device of claim 3, wherein: the steering column and the dustproof sleeve are both sleeved outside the steering shaft, and the upper end and the lower end of the dustproof sleeve are fixedly connected with the steering column and the cab interior mounting plate respectively.

5. The electronic steering wheel limiting device of claim 3, wherein: the upper end and the lower end of the bearing support are fixedly connected with an upper support of the cab inner mounting plate and the electromagnetic brake respectively, and a second bearing is arranged in the bearing support and connected with the steering shaft through the second bearing.

6. The electronic steering wheel limiting device of claim 5, wherein: the encoder is characterized by further comprising a mounting bracket, the upper end of the mounting bracket is fixedly connected with the bearing support, and the encoder is mounted at the lower end of the mounting bracket.