CN214929650U - Brake pedal drive assembly and vehicle - Google Patents

Abstract

The utility model discloses a brake pedal driving assembly and a vehicle, which comprises a brake pedal, a brake motor, a pull rope and a pull rope displacement sensor; a pull rope for pulling the brake pedal to swing is connected between the brake motor and the pull rope displacement sensor; the pull rope displacement sensor is provided with a connecting bearing, one end of the pull rope is connected with the output end of the brake motor, and the other end of the pull rope is connected with the pull rope displacement sensor through a rotating part of the connecting bearing. When the brake motor of the brake pedal driving assembly drives the pull rope to move, the pull rope is in contact with the rotating part of the connecting bearing, so that friction between the pull rope and the pull rope displacement sensor is reduced, the pull rope is more durable, and the quality of a vehicle provided with the brake pedal driving assembly is improved.

Description

Brake pedal drive assembly and vehicle

Technical Field

The utility model relates to a vehicle equipment field especially relates to a brake pedal drive assembly and vehicle.

Background

In the active anti-collision brake system of the open pit truck, the control on a brake pedal is related, and particularly in the field of unmanned driving, when the vehicle meets an emergency, the system can pull the brake pedal through a brake motor to generate the effect of simulating artificial braking.

For the real-time displacement of the brake pedal, a laser displacement sensor is used in the past, and the lens of the laser displacement sensor is afraid of dust shielding and is difficult to maintain in practical application, so that a steel wire rope sensor is used for measuring the displacement of the pedal later, but the steel wire rope sensor generates friction at a wire outlet in the moving process, so that the steel wire rope sensor is frequently damaged.

In view of the above, improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brake pedal drive assembly and vehicle that is not fragile and improves life.

The technical scheme of the utility model provides a brake pedal drive assembly, including brake pedal, brake motor, stay cord and stay cord displacement inductor; a pull rope for pulling the brake pedal to swing is connected between the brake motor and the pull rope displacement sensor; the pull rope displacement sensor is provided with a connecting bearing, one end of the pull rope is connected with the output end of the brake motor, and the other end of the pull rope is connected with the pull rope displacement sensor through a rotating part of the connecting bearing.

Furthermore, a pull rope connecting shaft is arranged on the brake pedal, and at least part of the pull rope is wound on the pull rope connecting shaft.

Furthermore, a wire casing for accommodating the pull rope is arranged on the pull rope connecting shaft, and the wire casing is spiral in the axial direction of the pull rope connecting shaft.

Furthermore, a torsion spring is sleeved on the pull rope connecting shaft.

Further, the connection bearing includes a first bearing and a second bearing; the first bearing comprises a first outer ring and a first inner ring which is rotationally connected with the first outer ring, and at least part of the first inner ring extends to the outer side of the first outer ring; the second bearing comprises a second outer ring and a second inner ring which is rotationally connected with the second outer ring, and at least part of the second inner ring extends to the outer side of the second outer ring; at least a portion of the pull cord is sandwiched between the first inner loop and the second inner loop.

Further, the first bearing comprises two first outer rings, and the first inner ring is connected between the two first outer rings; the first inner ring and the two first outer rings enclose a first groove with an opening facing the second inner ring; the second bearing comprises two second outer rings, and the second inner ring is connected between the two second outer rings; the second inner ring and the two second outer rings enclose a second groove with an opening facing the first inner ring; the first groove and the second groove are connected to form a through hole for the pull rope to pass through, and at least part of the pull rope is positioned in the through hole.

Further, the connecting bearing further comprises a third bearing, wherein the third bearing comprises a third outer ring and a third inner ring which is rotatably connected with the third outer ring; the third outer ring is connected with the pull rope displacement sensor, and the first outer ring and the second outer ring are connected to the third inner ring; and a communication hole for the pull rope to pass through is formed in the third inner ring, and at least part of the pull rope is positioned in the communication hole.

Further, the third bearing is a thrust bearing.

Further, the brake pedal driving assembly further comprises a control device for controlling the brake motor, the control device is electrically connected with the pull rope displacement sensor, and the control device is electrically connected with the brake motor.

The utility model provides a vehicle, including any one of above-mentioned technical scheme brake pedal drive assembly.

By adopting the technical scheme, the method has the following beneficial effects:

the utility model provides a brake pedal drive assembly, including brake pedal, brake motor, stay cord and stay cord displacement sensor. A pull rope for pulling the brake pedal to swing is connected between the brake motor and the pull rope displacement sensor. The pull rope displacement sensor is provided with a connecting bearing, one end of the pull rope is connected with the output end of the brake motor, and the other end of the pull rope is connected with the pull rope displacement sensor through a rotating part of the connecting bearing. The stay cord is when being driven the stay cord removal inductor of cominging in and going out by brake motor, just cominging in and going out the stay cord removal inductor behind the rotation portion of stay cord connection bearing, so reduced the friction loss of stay cord for the stay cord is not fragile, has prolonged life.

And the vehicle provided with the brake pedal driving assembly has better quality and is more popular with people.

Drawings

Fig. 1 is a schematic view of a brake pedal driving assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of a brake pedal and a brake motor according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection shaft of a pull rope according to an embodiment of the present invention;

fig. 4 is a schematic view of a connection shaft and a torsion spring of a pull rope according to an embodiment of the present invention;

fig. 5 is a schematic view of a connection bearing according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view at A-A of FIG. 5;

fig. 7 is a schematic view of a first bearing according to an embodiment of the present invention;

fig. 8 is a schematic view of a second bearing according to an embodiment of the present invention;

fig. 9 is a schematic diagram of the control device, the brake motor and the pull rope displacement sensor according to an embodiment of the present invention.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

As shown in fig. 1-6, an embodiment of the present invention provides a brake pedal driving assembly 10, which includes a brake pedal 1, a brake motor 2, a pull rope 3 and a pull rope displacement sensor 4.

A pull rope 3 for pulling the brake pedal 1 to swing is connected between the brake motor 2 and the pull rope displacement sensor 4.

Be provided with on the stay cord displacement inductor 4 and connect bearing 5, the one end of stay cord 3 is connected with brake motor 2's output, and the other end of stay cord 3 is connected with stay cord displacement inductor 4 through the rotation portion of connecting bearing 5.

The brake pedal actuation assembly 10 is a component that forms a vehicle braking system for controlling vehicle braking.

The brake pedal driving assembly 10 includes a brake pedal 1, a brake motor 2, a pull rope 3, and a pull rope displacement sensor 4.

The brake pedal 1 is used to control the movement of a brake disc (not shown) so as to decelerate the wheel. The bottom end of the brake pedal 1 is rotatably connected to the vehicle floor, so that the brake pedal can swing to drive the brake disc to move.

The brake motor 2 and the pull rope displacement sensor 4 are arranged on the vehicle floor or the vehicle framework. Stay cord 3 is connected between brake motor 2 and stay cord displacement sensor 4, and the one end of stay cord 3 is around on brake motor 2's motor shaft, and the motor shaft is brake motor 2's output, and the other end of stay cord 3 is connected in stay cord displacement sensor 4. The pull rope 3 is also connected with the brake pedal 1, and the brake motor 2 drives the pull rope 3 to move so as to drive the brake pedal 1 to swing. Alternatively, a coupling ring through which the pulling rope 3 passes is provided on the bottom surface of the brake pedal 1.

The pull rope displacement sensor 4 is also called a pull rope sensor, a pull rope electronic ruler and a pull rope encoder. The function of the rope displacement sensor 4 is to convert mechanical movement into an electrical signal that can be metered, recorded or transmitted. The pull rope displacement sensor 4 is internally provided with a rotatable rope winding shaft and a rotation sensor capable of detecting the rotation angle of the rope winding shaft. The sensor may be an incremental encoder, an absolute (independent) encoder, a hybrid or conductive plastic rotary potentiometer, a synchronizer or a resolver. When the stay cord displacement sensor 4 acts, the stay cord 3 drives the rope winding shaft to rotate, the rotary sensor measures the rotation angle of the rope winding shaft, and then data such as the displacement distance or the movement speed of the stay cord 3 are calculated.

A connecting bearing 5 is arranged at a rope outlet of the rope displacement sensor 4, the connecting bearing 5 is provided with a fixed part and a rotating part, the fixed part is connected with the rope displacement sensor 4, and the rotating part can rotate on the fixed part. The pull rope 3 passes through the rotating part, then passes through the rope outlet, enters the pull rope displacement sensor 4, and is connected with the rope winding shaft. Under the supporting action of the rotating part, the pull rope 3 is prevented from contacting the wall surface of the rope outlet, so that the friction between the pull rope 3 and the rope outlet is reduced, and the pull rope 3 is not easy to damage. When the rope 3 moves, the rotating portion rotates along with the movement of the rope 3, and friction between the rotating portion and the rope 3 is reduced.

This brake pedal drive assembly 10 effect process is as follows, and when the speed of a motor vehicle is slowed down in the needs brake, the output forward of brake motor 2 rotates, and 2 winding stay cords 3 of brake motor, stay cords 3 drive brake pedal 1 downswing, make the friction between brake disc increase and the wheel. At this time, the wire 3 in the wire displacement sensor 4 is extended outward. When the brake is not needed, the output end of the brake motor 2 rotates reversely, the brake pedal 1 swings upwards, and the pull rope 3 in the pull rope displacement sensor 4 retracts in the box. It should be noted that the forward and reverse directions are not absolute forward and reverse directions, but only to illustrate that the brake motor 2 can rotate in two opposite directions. In the process that the brake motor 2 drives the pull rope 3 to move, the pull rope displacement sensor 4 detects the moving distance of the pull rope 3, so that the swinging distance of the brake pedal 1 is controlled.

In one embodiment, as shown in fig. 1-2, the brake pedal 1 is provided with a pull rope connecting shaft 11, and at least a portion of the pull rope 3 is wound around the pull rope connecting shaft 11. The pull rope connecting shaft 11 is rotatably connected to a vehicle floor, the brake pedal 1 is connected to the pull rope connecting shaft 11, and the brake pedal 1 is driven to swing when the pull rope connecting shaft 11 rotates. At least part of the pull rope 3 is wound on the pull rope connecting shaft 11, and when the brake motor 2 drives the pull rope 3, the pull rope 3 drives the brake pedal 1 to swing by applying acting force on the pull rope connecting shaft 11. The surface of the pull rope connecting shaft 11 is arc-shaped, and when the pull rope connecting shaft is connected with the pull rope 3, the abrasion to the pull rope 3 can be greatly reduced, so that the service life of the pull rope 3 is prolonged.

In one embodiment, as shown in fig. 1 and 3, a wire groove 111 for accommodating the rope 3 is provided on the rope connecting shaft 11, and the wire groove 111 is spiral in the axial direction of the rope connecting shaft 11. The slot 111 is formed by recessing from the surface of the stay connection shaft 11, and the slot 111 is spiral as a whole. When the rope 3 is connected to the rope connecting shaft 11, at least a part of the rope 3 is positioned in the wire groove 111, and is wound around the rope connecting shaft 11. With the arrangement, the gripping force of the pull rope 3 and the pull rope connecting shaft 11 is increased, so that the pull rope 3 is not easy to slip when the pull rope connecting shaft 11 is driven to rotate.

In one embodiment, as shown in fig. 1 and 3, a torsion spring 12 is sleeved on the rope connecting shaft 11. The torsion spring 12 is sleeved on the stay cord connecting shaft 11, the fixed end of the torsion spring 12 is connected to the vehicle floor, and the acting end of the torsion spring 12 is in contact with the brake pedal 1. When the brake pedal 1 swings downward, the torsion spring 12 is compressively deformed. When the brake pedal 1 swings upwards, the torsion spring 12 recovers the deformation to assist in pushing the brake pedal 1 to swing upwards.

In one embodiment, as shown in fig. 1 and 5-8, the connecting bearing 5 includes a first bearing 51 and a second bearing 52. The first bearing 51 includes a first outer ring 511 and a first inner ring 512 rotatably connected to the first outer ring 511, and at least a portion of the first inner ring 512 protrudes outside the first outer ring 511. The second bearing 52 includes a second outer race 521 and a second inner race 522 rotatably coupled to the second outer race 521, and at least a portion of the second inner race 522 extends outside the second outer race 521. At least a portion of the pull cord 3 is sandwiched between the first inner race 512 and the second inner race 522.

Specifically, the first bearing 51 and the second bearing 52 are disposed bilaterally symmetrically. The first bearing 51 includes a first outer ring 511 and a first inner ring 512, a portion of the first inner ring 512 is located in the first outer ring 511, and a first ball 513 is connected between the first inner ring 512 and the first outer ring 511, and another portion of the first inner ring 512 is located outside the first outer ring 511. The second bearing 52 includes a second outer race 521 and a second inner race 522, a portion of the second inner race 522 is located in the second outer race 521, a second ball 523 is connected between the second outer race 521, and another portion of the second inner race 522 is located outside the second outer race 521. The first inner race 512 and the second inner race 522 are rotating portions connected to the bearing 5. For convenience of description, a portion of the first inner coil 512 located at the first outer coil 511 is defined as a first contact portion, and a portion of the second inner coil 522 located at the second outer coil 521 is defined as a second contact portion. First outer lane 511 and second outer lane 521 fixed connection form a centre gripping space between first contact site and the second contact site on stay cord displacement inductor 4, and in stay cord 3 passed this centre gripping space and entered into stay cord displacement inductor 4, first contact site and second contact site have restricted the position of stay cord 3, avoid stay cord 3 to rock. The pull rope 3 is respectively contacted with the first contact part and the second contact part, and when the pull rope 3 moves, the first contact part and the second contact part rotate along with the movement of the pull rope 3, so that the friction force between the pull rope 3 and the pull rope 3 is reduced, and the abrasion of the pull rope 3 is reduced.

In one embodiment, as shown in fig. 1 and 5-8, the first bearing 51 includes two first outer rings 511, and the first inner ring 512 is connected between the two first outer rings 511. The first inner ring 512 and the two first outer rings 511 enclose a first recess 514 which opens towards the second inner ring 522. The second bearing 52 includes two second outer races 521, and a second inner race 522 is coupled between the two second outer races 521. The second inner ring 522 and the two second outer rings 521 enclose a second groove 524 which opens towards the first inner ring 512. The first and second recesses 514 and 524 are connected to form a through hole 54 for the pull cord 3 to pass through, and at least a portion of the pull cord 3 is located in the through hole 54.

Specifically, the first bearing 51 is composed of a first inner ring 512 and two first outer rings 511, the two first outer rings 511 are respectively connected to two ends of the first inner ring 512, the first bearing 51 is integrally i-shaped, and the first inner ring 512 and the two first outer rings 511 enclose a first groove 514. Similarly, the second bearing 52 is composed of a second inner ring 522 and two second outer rings 521, the two second outer rings 521 are respectively connected to two ends of the second inner ring 522, and the second bearing 52 is integrally i-shaped. The second inner turn 522 and the two second outer turns 521 define a second groove 524.

When the first bearing 51 and the second bearing 52 are coupled, the two first outer rings 511 and the two second outer rings 521 are respectively connected, the first concave groove 514 and the second concave groove 524 are connected to form a through hole 54, and the through hole 54 is a holding space for holding the rope 3. With this arrangement, the two first outer rings 511 and the two second outer rings 521 can block the position of the rope 3 from above and below, thereby preventing the rope 3 from shaking in the up-down direction.

In one embodiment, as shown in fig. 1 and 5-8, the connecting bearing 5 further includes a third bearing 53, and the third bearing 53 includes a third outer ring 531 and a third inner ring 532 rotatably connected to the third outer ring 531. The third outer ring 531 is connected to the rope displacement sensor 4, and the first outer ring 511 and the second outer ring 521 are connected to the third inner ring 532. The third inner ring 532 is provided with a communication hole 534 for passing the pull rope 3, and at least a part of the pull rope 3 is positioned in the communication hole 534.

Specifically, the connection bearing 5 includes a third bearing 53, and the third bearing 53 is used to mount the first bearing 51 and the second bearing 52. The third bearing 53 includes a third outer ring 531 and a third inner ring 532, the third outer ring 531 is connected to the rope displacement sensor 4, and the third inner ring 532 is connected to the third outer ring 531, and a third ball 533 is connected between the third inner ring and the third outer ring 531. The first and second outer races 511 and 521 are coupled to the third inner race 532 so as to be rotatable with the rotation of the third inner race 532, thereby increasing the degree of freedom of the first and second bearings 51 and 52. A communication hole 534 is provided in the third inner race 532, the communication hole 534 is aligned with the through hole 54, and the pull cord 3 passes through the communication hole 534 into the pull cord displacement sensor 4 after passing through the through hole 54.

Alternatively, the first outer ring 511 and the second outer ring 521 are integrally formed by one mold, so that the manufacturing is facilitated.

In one embodiment, as shown in FIG. 6, the third bearing 53 is a thrust bearing. The thrust bearing is a special bearing for receiving a force in an axial direction, that is, a bearing for receiving a force in a direction parallel to the axis, and is also called a thrust bearing. Typically consisting of two or more thrust washers and a number of rolling bodies. The arrangement is such that the third bearing 53 can better bear the acting force exerted by the first bearing 51 and the second bearing 52, and damage is avoided.

In one embodiment, as shown in fig. 1-2 and 9, the brake pedal actuation assembly 10 further includes a control device 6 for controlling the brake motor 2, the control device 6 being electrically connected to the cable displacement sensor 4, and the control device 6 being electrically connected to the brake motor 2.

The control device 6 is used for controlling the forward rotation and the reverse rotation of the brake motor 2. The control device 6 is provided with a determination unit 61 and an operation unit 62 connected to the determination unit 61. The judging unit 61 is connected with the pull rope displacement sensor 4 through an electric wire, so that a signal transmitted by the pull rope displacement sensor 4 can be received; the operating unit 62 is connected to the brake motor 2 through an electric wire so that the brake motor 2 can be controlled to rotate. When the pull rope displacement sensor 4 detects data, the data is transmitted to the judging unit 61, the judging unit 61 judges according to the data, and then sends a corresponding signal to the operating unit 62 according to a judgment result, so that the operating unit 62 controls the brake motor 2. So set up, can accurate control brake motor 2's rotation, make things convenient for the staff operation.

As shown in fig. 1-9, a vehicle (not shown) according to the present invention includes a brake pedal drive assembly 10 according to any of the above embodiments.

The brake pedal drive assembly 10 is mounted on a vehicle. For the specific structure and function of the brake pedal driving assembly 10, please refer to the related contents in the foregoing, and the detailed description thereof is omitted.

The pull rope 3 of the brake pedal driving assembly 10 is not easy to damage and has long service life, thereby improving the quality of vehicles and meeting the requirements of people.

Alternatively, the vehicle is a car, truck, van, or the like.

To sum up, the utility model provides a brake pedal drive assembly 10, including brake pedal 1, brake motor 2, stay cord 3 and stay cord displacement sensor 4. A pull rope 3 for pulling the brake pedal 1 to swing is connected between the brake motor 2 and the pull rope displacement sensor 4. Be provided with on the stay cord displacement inductor 4 and connect bearing 5, the one end of stay cord 3 is connected with brake motor 2's output, and the other end of stay cord 3 is connected with stay cord displacement inductor 4 through the rotation portion of connecting bearing 5. Stay cord 3 is being driven by brake motor 2 and is come in and go out 3 removal inductors of stay cord, and stay cord 3 just comes in and goes out 3 removal inductors of stay cord after the rotation portion of connecting bearing 5, so reduced the friction loss of stay cord 3 for stay cord 3 is not fragile, has prolonged life.

The utility model also provides a vehicle, the vehicle mounting has brake pedal drive assembly 10. The brake pedal driving assembly 10 is not easy to damage and long in service life, so that the quality of a vehicle is improved, and the brake pedal driving assembly is more popular with people.

According to the needs, the above technical schemes can be combined to achieve the best technical effect.

The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims (10)

1. A brake pedal driving assembly (10) is characterized by comprising a brake pedal (1), a brake motor (2), a pull rope (3) and a pull rope displacement sensor (4);

a pull rope (3) for pulling the brake pedal (1) to swing is connected between the brake motor (2) and the pull rope displacement sensor (4);

the pull rope displacement sensor (4) is provided with a connecting bearing (5), one end of the pull rope (3) is connected with the output end of the brake motor (2), and the other end of the pull rope (3) is connected with the pull rope displacement sensor (4) through a rotating part of the connecting bearing (5).

2. The brake pedal drive assembly (10) of claim 1, wherein the brake pedal (1) is provided with a pull cord connecting shaft (11), and at least a portion of the pull cord (3) is wound around the pull cord connecting shaft (11).

3. The brake pedal drive assembly (10) according to claim 2, characterized in that a wire groove (111) for accommodating the pull rope (3) is provided on the pull rope connecting shaft (11), the wire groove (111) being helical in an axial direction of the pull rope connecting shaft (11).

4. The brake pedal actuation assembly (10) of claim 2 wherein the cable connecting shaft (11) is sleeved with a torsion spring (12).

5. The brake pedal drive assembly (10) of claim 1, wherein the connecting bearing (5) includes a first bearing (51) and a second bearing (52);

the first bearing (51) comprises a first outer ring (511) and a first inner ring (512) which is rotationally connected with the first outer ring (511), and at least part of the first inner ring (512) extends to the outer side of the first outer ring (511);

the second bearing (52) comprises a second outer ring (521) and a second inner ring (522) rotationally connected with the second outer ring (521), and at least part of the second inner ring (522) extends to the outer side of the second outer ring (521);

at least a portion of the pull cord (3) is sandwiched between the first inner ring (512) and the second inner ring (522).

6. The brake pedal drive assembly (10) of claim 5, wherein the first bearing (51) includes two of the first outer rings (511), the first inner ring (512) being connected between the two first outer rings (511);

the first inner ring (512) and the two first outer rings (511) enclose a first groove (514) which is opened towards the second inner ring (522);

the second bearing (52) comprises two second outer rings (521), the second inner ring (522) being connected between the two second outer rings (521);

the second inner ring (522) and the two second outer rings (521) enclose a second groove (524) which is opened towards the first inner ring (512);

the first groove (514) and the second groove (524) are connected to form a through hole (54) for the pull rope (3) to pass through, and at least part of the pull rope (3) is positioned in the through hole (54).

7. The brake pedal drive assembly (10) of claim 5, wherein the connecting bearing (5) further includes a third bearing (53), the third bearing (53) including a third outer race (531) and a third inner race (532) rotationally connected to the third outer race (531);

the third outer ring (531) is connected with the pull rope displacement sensor (4), and the first outer ring (511) and the second outer ring (521) are connected to the third inner ring (532);

a communication hole (534) for the pull rope (3) to pass through is formed in the third inner ring (532), and at least part of the pull rope (3) is located in the communication hole (534).

8. The brake pedal drive assembly (10) of claim 7, wherein the third bearing (53) is a thrust bearing.

9. The brake pedal drive assembly (10) of claim 1, wherein the brake pedal drive assembly (10) further includes a control device (6) for controlling the brake motor (2), the control device (6) being electrically connected to the cable displacement sensor (4), the control device (6) being electrically connected to the brake motor (2).

10. A vehicle comprising a brake pedal actuation assembly (10) according to any one of claims 1 to 9.

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