CN211374061U

CN211374061U - Accelerator pedal driving device

Info

Publication number: CN211374061U
Application number: CN201921949398.8U
Authority: CN
Inventors: 柯意; 蒋巍; 张伟
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-28
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses an accelerator pedal driving device, which comprises a support and a servo motor arranged on the support, wherein an output shaft of the servo motor is connected with a lead screw, and one end of the lead screw, which is far away from the servo motor, is butted on an accelerator pedal; the support is rotatably provided with a rotating shaft, the servo motor is fixed on the rotating shaft, and the support is further provided with a blocking part for blocking the rotation of the rotating shaft. The accelerator pedal driving device of the utility model can accurately control the rotation of the servo motor to accurately control the angle of the accelerator pedal, thereby obtaining accurate vehicle test data under the corresponding angle of the accelerator pedal; the servo motor is adopted to drive the lead screw to press or lift the accelerator pedal, and the purpose of driving the accelerator pedal can be realized only by operating the servo motor during operation.

Description

Accelerator pedal driving device

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to an accelerator pedal drive arrangement.

Background

In the field of automobile road tests, various tests in the running process of a vehicle are generally completed by a driver stepping on an accelerator pedal to drive the vehicle, but when various precision tests of the vehicle are performed, the precision of stepping control of the driver stepping on the accelerator pedal completely depends on the experience of the driver, so that the problem that the driver is easy to step on the accelerator pedal excessively or insufficiently is caused, the precision of the control of the accelerator pedal is low, and the precision of the control of the accelerator pedal is low in some vehicle tests with high precision requirements, so that the precision of the vehicle tests is low; in addition, in the whole test process, a driver needs to control the accelerator pedal at any time, so that the accuracy of related data is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide an accelerator pedal drive arrangement, the angle volume that this drive arrangement can accurate drive accelerator pedal need push down or lift on, accurate control accelerator pedal's rotation volume to solve the problem that accelerator pedal control accuracy is low when driving accelerator pedal by the navigating mate.

In order to realize the above object, the utility model provides an accelerator pedal drive device, include the support and establish servo motor on the support, servo motor's output shaft has the lead screw, the one end butt of keeping away from servo motor of lead screw is on accelerator pedal.

Preferably, the support is provided with a rotatable rotating shaft, the servo motor is fixedly arranged on the rotating shaft, and the support is further provided with a stopping part for stopping the rotation of the rotating shaft.

As a preferred scheme, at least one end of the rotating shaft is vertically and fixedly provided with a mandril;

the stop part comprises an arc-shaped stop groove arranged on the support, one end of the ejector rod, which is far away from the rotating shaft, is provided with an elastically telescopic locking block, and the locking block is clamped in the stop groove in a matching manner.

Preferably, a pressing rod is fixedly arranged at one end of the servo motor, which is far away from the lead screw, and the pressing rod is used for driving the rotating shaft to rotate so as to enable the ejector rod to rotate along the inner wall of the stop groove, and therefore the lead screw rotates and is far away from the accelerator pedal.

Preferably, a containing cavity extending along the length direction of the ejector rod is arranged in the ejector rod, an opening is formed in one end of the containing cavity, the locking block is a positioning ball arranged at the opening, a spring is arranged in the containing cavity, two ends of the spring are respectively connected with the containing cavity and the positioning ball, and the positioning ball is clamped in the stopping groove.

Preferably, the diameter of the positioning ball is larger than the diameter of the opening and smaller than the diameter of the accommodating cavity.

Preferably, the stop groove includes a first stop groove, a second stop groove and a third stop groove which are sequentially communicated, the first stop groove, the second stop groove and the third stop groove are all arc-shaped, and the diameters of the first stop groove and the third stop groove are the same and smaller than the diameter of the second stop groove.

Preferably, one end of the screw rod, which is far away from the servo motor, is rotatably provided with a front end bearing, and the rotation direction of the front end bearing is matched with the rotation direction of the accelerator pedal.

Preferably, a first pressing plate is fixedly arranged on the servo motor, and an output shaft of the servo motor penetrates through the first pressing plate to be connected with the screw rod.

As a preferred scheme, a second pressing plate is fixedly arranged on one side, far away from the output shaft, of the servo motor, and the pressing rod is fixedly arranged on the second pressing plate.

The utility model discloses an accelerator pedal drive arrangement compares with prior art's beneficial effect lies in:

the utility model discloses an output shaft of accelerator pedal drive arrangement's servo motor is connected with the lead screw, and the rotation of servo motor's output shaft is converted into the linear motion of lead screw and is removed through being connected with the lead screw, and control servo motor rotates and can drive the lead screw and remove and push down or lift up accelerator pedal, can pass through the angle of control servo motor with accurate control accelerator pedal like this to obtain accurate vehicle test data under the corresponding accelerator pedal angle; the servo motor is adopted to drive the lead screw to press or lift the accelerator pedal, and the purpose of driving the accelerator pedal can be realized only by operating the servo motor during operation.

Drawings

Fig. 1 is a schematic structural view of an accelerator pedal driving device in an embodiment of the present invention;

fig. 2 is a schematic view of a partial explosion structure of an accelerator pedal driving device in an embodiment of the present invention;

fig. 3 is the schematic structural diagram of the ejector rod of the accelerator pedal driving device in the embodiment of the present invention.

In the figure, 5, an accelerator pedal; 51. a front end bearing; 6. a support; 61. a support plate; 7. a rotating shaft; 8. a servo motor; 9. a lead screw; 10. a stopper portion; 101. a stop groove; 1010. a first stop groove; 1011. a second stopping groove; 1012. a third stopping groove; 11. a top rod; 110. an accommodating chamber; 111. an opening; 13. a locking block; 14. a pressure lever; 16. a spring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The utility model discloses a preferred embodiment of accelerator pedal drive arrangement, as shown in fig. 1-3, the utility model discloses an accelerator pedal drive arrangement sets up near accelerator pedal, including support 6, support 6 is last apart from fixed distance and relatively fixed be equipped with two extension boards 61, concrete extension board 61 and support 1 welding or bolted connection, two relative reservations on extension board 61 have the mounting hole, rotate in two mounting holes and install rotation axis 7, rotation axis 7 can rotate in the mounting hole, the both ends of concrete rotation axis 7 respectively the level pass the mounting hole of reserving on two extension boards 61, be fixed with servo motor 8 on rotation axis 7, servo motor 8 and rotation axis 7 welding or bolt fixed connection, the rotation of rotation axis 7 can drive servo motor 8 and rotate; output shaft of servo motor 8 has lead screw 9, during the specific connection, be fixed with first clamp plate 81 on the servo motor 8, servo motor 8's output shaft passes first clamp plate 81 and is connected with lead screw 9, turn into the linear movement of lead screw 9 with servo motor 8's rotation, lead screw 9's the one end and the 5 butt of accelerator pedal of keeping away from servo motor 8, lead screw 9 sets up with the axle center with servo motor 8's output shaft, lead screw 9's one end is equipped with the lead screw mounting hole, servo motor 8's output shaft matching is installed in the lead screw mounting hole. The working principle of adopting the servo motor 8 to adjust the accelerator pedal 5 is as follows: because the accelerator pedal 5 is inclined and can rotate, when the servo motor 8 rotates, the servo motor 8 drives the screw rod 9 to move linearly, the accelerator pedal 5 can be pressed down to enable the accelerator pedal 5 to rotate downwards, or the accelerator pedal 5 can be reset, so that the actual vehicle state in the vehicle can be adjusted through the rotation of the accelerator pedal 5.

When the accelerator pedal driving device of the present application is normally operated, in order to fix the positions of the rotating shaft 7 and the servo motor 8, a stopping portion 10 for stopping the rotation of the rotating shaft 7 is fixedly disposed on the support 6, and the stopping portion 10 is used for fixing the rotating shaft 7 to fix the position of the servo motor 8. Specifically, the stopper 10 includes a stopper groove 101 fixedly provided on one side of the support plate 61, a plunger 11 is vertically and fixedly provided at one end of the rotating shaft 7, and the plunger 11 is fixed in the stopper groove 101 to stop the rotation of the rotating shaft 7, so as to fix the position of the servo motor 8.

Wherein, the front end bearing 51 is installed in the one end rotation of lead screw 9 and accelerator pedal 5 contact to rotate the butt with accelerator pedal 5 when lead screw 9 drive accelerator pedal 5, rotate on accelerator pedal 5 along with the rectilinear movement of lead screw 9, be used for reducing the friction of lead screw 9 and accelerator pedal 5, increase the stationarity that lead screw 9 removed.

A pressing rod 14 is fixed at one end of the servo motor 8, which is far away from the screw rod 9, the pressing rod 14 is fixed on a second pressing plate 12, and the second pressing plate 12 is fixed on the servo motor 8 through bolts; as shown in fig. 3, an elastically movable locking block 13 is mounted at an end of the ram 11, and when the locking block 13 of the ram 11 is stopped in the arc-shaped stopping groove 101, the locking block 13 elastically abuts against an inner wall of the stopping groove 101 under the elastic action to stop the rotation of the ram 11; for the purpose of fixing the rotation shaft 7 by blocking, the cross section of the blocking groove may be a long direction or a circular arc. In the present application, the stopping groove 101 is specifically an arc-shaped groove, when an external rotating force is applied to the rotating shaft by the arc-shaped stopping groove 101, the locking block can be in the arc-shaped stopping groove 101, so that when a rotating pressure is applied to the pressing rod 14, the pressing rod 14 can drive the servo motor 8 and the rotating shaft 7 to rotate, the rotating shaft 7 drives the ejector rod 11 to overcome the elastic locking force of the locking block so as to enable the locking block 13 to rotate in the stopping groove 101, and since the servo motor 8 simultaneously drives the lead screw 9 to rotate, the lead screw 9 can be separated from the accelerator pedal 5, so that the purpose of releasing the accelerator pedal 5 to decelerate the vehicle can be achieved in an emergency, and when the locking block 13 rotates to the outside of the stopping groove 101, the stopping effect of the ejector rod 11 by the stopping groove 101 can be released.

The locking block 13 is specifically a positioning ball, a containing cavity 110 extending along the length direction of the ejector rod is arranged in the ejector rod 11, an opening 111 is formed in one end of the containing cavity 110, the positioning ball is installed at the opening 111, a spring 16 is arranged in the containing cavity 110, two ends of the spring 16 are respectively connected with the containing cavity 110 and the positioning ball, the spring can be simultaneously extruded when the positioning ball is extruded to the inside of the containing cavity 110, the positioning ball extends into the containing cavity 110, the positioning ball is prevented from moving to the outside of the containing cavity 110 for increasing the structural compactness of the ejector rod 11, the diameter of the positioning ball is larger than that of the opening 111 and smaller than that of the containing cavity 110, the positioning ball is prevented from completely moving to the outside of the opening, one side of the positioning ball, which is located at the outside of the containing cavity 110, is a circular arc surface, and the other side of the.

In the present application, the selection criteria of the spring 16 are: when the servo motor 8 operates, the push rod 11 is locked in the stop groove 101, the rotating shaft can overcome the elastic force of the spring to rotate the push rod 11 only under the action of applying pressure to the press rod 14, and the rotating shaft 7 is in a fixed state under the combined action of the spring 16 of the push rod 11 and the stop groove 101 when the servo motor 8 normally operates.

Further, the stop slot 101 includes a first stop slot 1010, a second stop slot 1011 and a third stop slot 1012 which are sequentially communicated, the first stop slot 1010, the second stop slot 1011 and the third stop slot 1012 are all arc-shaped, the diameters of the first stop slot 1010 and the third stop slot 1012 are the same and smaller than the diameter of the second stop slot 1011, specifically, when the servo motor 8 normally works, the positioning ball is located in the second groove 1011, in an emergency, pressure is applied to the pressure lever 14, the pressure lever 14 can drive the servo motor 8 and the rotating shaft 7 to rotate, the rotating shaft 7 drives the push rod 11 to overcome the elastic locking force of the positioning ball so that the positioning ball rotates in the first stop slot 1010, the positioning ball rotates to the first stop slot 1010 and enters the second stop slot 1011 or the third stop slot 1012, and simultaneously, due to the elastic action of the spring 16, the push rod 11 is stopped in the second stop slot 1011 or the third stop slot 1012 to fix the rotating shaft 7, meanwhile, the screw rod 9 is driven by the pressure rod 14 to rotate, so that the screw rod 9 is separated from the accelerator pedal 5, and the purpose of loosening the accelerator pedal 5 to decelerate the vehicle can be achieved under emergency.

The position of the mechanism is limited by the stop slot 101 and the ejector rod 11, and the structure is simple and the use is convenient; the rotating shaft 7 can be controlled to rotate under emergency by applying the pressure lever 14, so that the lead screw loosens an accelerator pedal, the safety guarantee of emergency is increased on the premise of ensuring the normal control function, and the safety of a tested vehicle and workers under the extreme condition of failure of the servo motor is ensured; the front end bearing 51 rotates with the rotation of the accelerator pedal 5, and the friction between the lead screw 9 and the accelerator pedal 5 is reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The accelerator pedal driving device is characterized by comprising a support and a servo motor arranged on the support, wherein an output shaft of the servo motor is connected with a lead screw, and one end of the lead screw, which is far away from the servo motor, is abutted against the accelerator pedal; the servo motor is fixed on the rotating shaft, and the support is also provided with a blocking part for blocking the rotation of the rotating shaft.

2. The accelerator pedal driving apparatus according to claim 1, wherein at least one end of the rotating shaft is vertically provided with a jack;

the stop part comprises an arc-shaped stop groove arranged on the support, one end of the ejector rod, which is far away from the rotating shaft, is provided with an elastically telescopic locking block, and the locking block can be clamped in the stop groove.

3. The accelerator pedal driving device according to claim 2, wherein a pressing rod is fixedly disposed at an end of the servo motor away from the lead screw, and the pressing rod is configured to drive the rotating shaft to rotate, so that the push rod rotates along an inner wall of the stop slot, and the lead screw rotates away from the accelerator pedal.

4. The accelerator pedal driving device according to claim 2, wherein an accommodating cavity extending along a length direction of the plunger is provided in the plunger, an opening is provided at one end of the accommodating cavity, the locking block is a positioning ball provided at the opening, a spring is provided in the accommodating cavity, two ends of the spring are respectively connected to the accommodating cavity and the positioning ball, and the positioning ball is locked in the blocking groove.

5. The accelerator pedal drive according to claim 4, wherein the positioning ball has a diameter larger than a diameter of the opening and smaller than a diameter of the receiving chamber.

6. The accelerator pedal driving apparatus according to claim 2, wherein: the stop groove comprises a first stop groove, a second stop groove and a third stop groove which are sequentially communicated, the first stop groove, the second stop groove and the third stop groove are all arc-shaped, and the diameters of the first stop groove and the third stop groove are the same and smaller than the diameter of the second stop groove.

7. The accelerator pedal driving device according to any one of claims 1 to 6, wherein an end of the lead screw remote from the servo motor is rotatably provided with a front end bearing, and a rotation direction of the front end bearing matches a rotation direction of the accelerator pedal.

8. The accelerator pedal driving device according to any one of claims 1 to 6, wherein a first pressing plate is fixedly provided on the servo motor, and an output shaft of the servo motor passes through the first pressing plate and is connected with the lead screw.

9. The accelerator pedal driving device according to any one of claims 1 to 6, wherein a second pressing plate is fixedly provided on a side of the servo motor away from the output shaft, and the second pressing rod is fixedly provided on the second pressing plate.