CN114110048B

CN114110048B - Braking mechanism and vehicle

Info

Publication number: CN114110048B
Application number: CN202010899562.XA
Authority: CN
Inventors: 胡如现; 孙琦
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2023-04-25
Anticipated expiration: 2040-08-31
Also published as: CN114110048A

Abstract

The utility model relates to a brake mechanism and vehicle, this brake mechanism include mount, adjustable shelf, first brake block, second brake block and drive assembly, the adjustable shelf can set up with relative movement on the mount, first brake block can set up with relative movement on the adjustable shelf, the second brake block is fixed on the adjustable shelf, and with first brake block sets up with the space that forms the centre gripping brake disc relatively, drive assembly with first brake block with the adjustable shelf links to each other, is used for the drive first brake block with the second brake block is close to each other and keeps away from the brake disc to realize the braking and the release of brake disc. The driving assembly of the present disclosure can act on first brake block and second brake block simultaneously through the movable frame for driving efficiency is high, and, the second brake block can press from both sides tight brake disc with first brake block cooperation from both sides, improves the stability of braking.

Description

Braking mechanism and vehicle

Technical Field

The disclosure relates to the technical field of braking of vehicles, in particular to a braking mechanism and a vehicle.

Background

The brake mechanism of a vehicle refers to a component that generates a force (braking force) that counteracts the movement or movement tendency of the vehicle, which also includes a retarder in the auxiliary brake system. Currently, brakes used for vehicles are almost all friction type brakes, and mainly comprise two main types of drum brake mechanisms and disc brake mechanisms. The existing brake mechanism mainly presses a brake disc to a brake pad fixed on the other side by driving the brake pad on one side, and has high driving requirement on the brake pad on one side and poor braking stability.

Disclosure of Invention

The purpose of this disclosure is to provide a braking mechanism and vehicle, and this braking mechanism is efficient when braking, and stability is strong.

In order to achieve the above-mentioned purpose, the present disclosure provides a braking mechanism, including mount, movable frame, first brake block, second brake block and drive assembly, the movable frame is movably relatively arranged on the mount, first brake block is movably relatively arranged on the movable frame, the second brake block is fixed on the movable frame, and with first brake block sets up relatively in order to form the space of centre gripping brake disc, drive assembly with first brake block with the movable frame links to each other, is used for the drive first brake block with the second brake block is close to each other and keeps away from the brake disc to realize the braking and the release of brake disc.

Optionally, the driving assembly includes a screw driving member, and the screw driving member is in screw fit with the movable frame, so as to drive the movable frame to make linear motion relative to the fixed frame when the screw driving member rotates.

Optionally, the drive assembly further includes an actuating member, the screw driving member is a driving screw, the driving screw includes a first end, a second end and a middle screw section, the movable frame includes a screw through hole, the middle screw section is in screw fit with the screw through hole, the first end selectively abuts on the first brake pad, the second end is connected with the actuating member, the actuating member is used for driving the driving screw to rotate, so that the first end pushes the first brake pad to compress the brake disc, and the middle screw section drives the movable frame to move, so as to drive the second brake pad to compress the brake disc.

Optionally, the actuating member includes a rocker arm, a transmission member and an operating lever, one end of the rocker arm is fixed at the second end, the other end of the rocker arm is connected with the operating lever through the transmission member, and the operating lever is used for controlling the rocker arm to rotate.

Optionally, one end of the rocker arm is formed into a clamp structure, an inner thread is formed on an inner side wall of the clamp structure, an outer thread is formed on an outer side wall of the second end, and the clamp structure is sleeved on the second end and is in threaded fit with the second end.

Optionally, the actuating member comprises a motor and an operation button, an output shaft of the motor is in transmission connection with the second end part, the motor is in signal connection with the operation button, and the operation button is used for controlling the motor to start and stop.

Optionally, the driving assembly further includes a first reset elastic member and a second reset elastic member, where the first reset elastic member is disposed at the second end and is used to drive the driving screw to rotate under the action of elastic restoring force, and the second reset elastic member is mounted on the movable frame and connected with the first brake pad and is used to drive the first brake pad to move away from the brake disc under the action of elastic restoring force.

Optionally, the movable frame includes U type mounting structure, U type mounting structure's opposite both sides wall is formed with spacing groove and fixed part respectively, fixed part detachably installs on the U type mounting structure, first brake block slidable inlays and establishes in the spacing groove, the second brake block is fixed part.

Optionally, the fixing frame includes body, guide arm and backstop piece, the one end of guide arm is fixed on the body, the other end with the backstop piece is fixed, be formed with the sleeve on the movable frame, the sleeve slidable cover is established on the guide arm to under drive assembly's effect is followed the guide arm carries out reciprocating motion.

Another aspect of the present disclosure also provides a vehicle including the braking mechanism as described above.

Through the technical scheme, the first brake pad and the second brake pad in the embodiment of the disclosure are both arranged on the movable frame, the movable frame can move relative to the fixed frame, wherein the first brake pad can move relative to the movable frame, and the second brake pad is fixed on the movable frame, so that when the driving assembly works, the movable frame and the first brake pad can move under the action of driving force, namely, the driving assembly can drive the first brake pad to move in a direction approaching or separating from the second brake pad, and the driving assembly can also drive the movable frame to move, so that the second brake pad on the movable frame can also move in a direction approaching or separating from the first brake pad, when the first brake pad and the second brake pad are approaching each other, the brake disc brakes, and when the first brake pad and the second brake pad are separating from each other, the brake disc releases; in this in-process, drive assembly can act on first brake block and second brake block simultaneously for driving efficiency is high, and can drive the second brake block through the movable frame and remove, with first brake block cooperation from both sides clamp brake disc when braking, improve the stability of braking.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a brake mechanism in one embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a brake mechanism in one embodiment of the present disclosure at another perspective;

FIG. 3 is an exploded schematic view of a brake mechanism in one embodiment of the present disclosure;

FIG. 4 is an exploded schematic view of a brake mechanism in one embodiment of the present disclosure at another perspective;

FIG. 5 is a side view of the brake mechanism of one embodiment of the present disclosure from the side of the second brake pad;

FIG. 6 isbase:Sub>A cross-sectional view taken along the line A-A in FIG. 5;

fig. 7 is a schematic structural view of a brake mechanism in another embodiment of the present disclosure, wherein the actuator comprises a motor.

Description of the reference numerals

1. A fixing frame; 11. a body; 12. a guide rod; 13. a stopper; 2. a movable frame; 21. a threaded through hole; 22. a U-shaped mounting structure; 221. a limit groove; 222. a fixing part; 23. a sleeve; 3. a first brake pad; 4. a second brake pad; 51. driving a screw; 511. a first end; 512. a second end; 513. an intermediate thread segment; 52. an actuator; 521. a rocker arm; 5211. a clamp structure; 522. a motor; 6. a first return elastic member; 7. and a second return elastic member.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In this disclosure, unless otherwise indicated, terms of orientation such as "inner and outer" are used to refer to "inner and outer" with respect to the outline of the component or structure itself. In addition, it should be noted that terms such as "first", "second", etc. are used to distinguish one element from another element, and do not have order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

The embodiment of the present disclosure provides a braking mechanism, as shown in fig. 1 to 7, which includes a fixed frame 1, a movable frame 2, a first brake pad 3, a second brake pad 4, and a driving assembly, wherein the movable frame 2 is relatively movably disposed on the fixed frame 1, the first brake pad 3 is relatively movably disposed on the movable frame 2, the second brake pad 4 is fixed on the movable frame 2, and is relatively disposed with the first brake pad 3 to form a space for clamping a brake disc, and the driving assembly is connected with the first brake pad 3 and the movable frame 2 for driving the first brake pad 3 and the second brake pad 4 to approach and separate from each other from the brake disc, thereby realizing braking and releasing of the brake disc.

Through the above technical solution, in the embodiment of the present disclosure, the first brake pad 3 and the second brake pad 4 are both disposed on the movable frame 2, and the movable frame 2 can move relative to the fixed frame 1, where the first brake pad 3 can move relative to the movable frame 2, and the second brake pad 4 is fixed on the movable frame 2, so that when the driving assembly works, the movable frame 2 and the first brake pad 3 can move under the action of the driving force, i.e., the driving assembly can drive the first brake pad 3 to move in a direction approaching or separating from the second brake pad 4, and the driving assembly can also drive the movable frame 2 to move, so that the second brake pad 4 on the movable frame 2 can also move in a direction approaching or separating from the first brake pad 3, when the first brake pad 3 and the second brake pad 4 approach each other, the brake disc brakes, and when the first brake pad 3 and the second brake pad 4 separate from each other, the brake disc releases; in this process, the drive assembly can act on first brake block 3 and second brake block 4 simultaneously for driving efficiency is high, and can drive second brake block 4 through movable frame 2 and remove, presss from both sides tight brake disc with first brake block 3 cooperation from both sides when braking, improves the stability of braking.

In one embodiment of the present disclosure, as shown in fig. 3, 4 and 6, the driving assembly includes a screw driving member, which is screw-engaged with the movable frame 2 to drive the movable frame 2 to make a linear motion with respect to the fixed frame 1 when the screw driving member rotates. The screw driving piece is matched with the movable frame 2, so that the transmission precision is higher in driving, and the safety and reliability are improved.

The screw drive of the present disclosure may be any suitable screw, and in one exemplary embodiment of the present disclosure, the screw drive is a drive screw 51, the drive screw 51 includes a first end 511, a second end 512, and an intermediate threaded section 513, the movable frame 2 includes a threaded through hole 21, and the drive assembly further includes an actuator 52, wherein the intermediate threaded section 513 is threadedly engaged with the threaded through hole 21, the first end 511 selectively abuts against the first brake pad 3, and the second end 512 is connected to the actuator 52. During braking or releasing of the brake disc, the actuator 52 is configured to rotate the drive screw 51 such that the first end 511 pushes the first brake pad 3 to compress the brake disc, and such that the intermediate threaded section 513 moves the movable frame 2 to drive the second brake pad 4 to compress the brake disc. Because the screw driving piece is in the rotation process, the screw driving piece and the movable frame 2 respectively move along opposite directions relative to each other, that is to say, the driving screw 51 can push the first brake pad 3 to move in the rotation process, and the movable frame 2 can drive the second brake pad 4 to move, that is to say, the driving screw 51 meets the transmission requirements of the first brake pad 3 and the movable frame 2, no other transmission piece is required, and the whole braking mechanism is simpler in structure and beneficial to light weight and miniaturization.

It should be understood that the driving screw 51 may be any rod-shaped structure provided with an external thread, and the driving screw 51 may be a separate member, such as a bolt, for example, or may be a part of the actuating member 52, such as an output shaft, etc. where the actuating member 52 is provided with an external thread, which is not limited by the present disclosure.

As shown in fig. 1 to 4, the actuating member 52 includes a rocker 521, a transmission member (not shown) and an operating lever (not shown), one end of the rocker 521 is fixed to the second end 512 of the drive screw 51, and the other end is connected to the operating lever through the transmission member, and the operating lever is used to control rotation of the rocker 521. The transmission member may be a pull wire, a transmission rod, and other components, and the operation rod is used for being operated by a driver, for example, may be an operation rod such as a hand brake, a foot brake, and the like, in the braking process, a user moves the operation rod, the operation rod transmits a driving force to the rocker 521 through the transmission member, the rocker 521 rotates under the action of the transmission member, so that the driving screw 51 is driven to rotate, and the first brake pad 3 and the second brake pad 4 are further made to approach each other, so as to realize braking of the vehicle.

In the embodiment of the present disclosure, the rocker arm 521 may be connected with the second end portion 512 of the driving screw 51 in various manners, and illustratively, one end of the rocker arm 521 is formed as a clip structure 5211, an inner sidewall of the clip structure 5211 is formed with an inner thread, an outer sidewall of the second end portion 512 is formed with an outer thread, and the clip structure 5211 is sleeved on the second end portion 512 and is in threaded engagement with the second end portion 512. That is, the swing arm 521 is locked to the second end 512 of the drive screw 51 by the clamp structure 5211, and the tightness of the clamp structure 5211 and the second end 512 is further reinforced by the screw-fitting, so that the swing arm 521 and the second end 512 are prevented from sliding relatively when the driver pulls the operating lever, resulting in braking failure, and the safety of braking can be improved by the threaded clamp structure 5211.

In other embodiments of the present disclosure, the actuator 52 may also be other components capable of rotating a threaded driver, for example, in one example of the present disclosure, as shown in fig. 7, the actuator 52 includes a motor 522 and an operating button (not shown in the drawing), an output shaft of the motor 522 is drivingly connected to the second end 512, and the motor 522 is signal-connected to the operating button, and the operating button is used to control the motor 522 to start and stop. The operation button can be arranged in the cab for the driver to operate, in one application, when the driver needs to brake the vehicle, the driver can press the operation button, and the motor 522 is started after acquiring the signal of the operation button so as to drive the driving screw 51 to rotate, so that the first brake pad 3 and the second brake pad 4 are close to each other, and the braking of the vehicle is realized.

The motor 522 may be various types of motors 522, such as a servo motor 522, an electromagnetic gear motor 522, etc., to which the present disclosure is not limited. The motor 522 may be connected to the drive screw 51 through a transmission mechanism such as a speed reducer, or may have its output shaft directly connected to the drive screw 51, which is not limited by the present disclosure.

In the embodiment of the present disclosure, as shown in fig. 1 to 4 and 6, the driving assembly further includes a first reset elastic member 6 and a second reset elastic member 7, where the first reset elastic member 6 is disposed at the second end 512 and is used to drive the driving screw 51 to rotate under the action of elastic restoring force, and the second reset elastic member 7 is installed on the movable frame 2 and is connected to the first brake pad 3 and is used to drive the first brake pad 3 to move away from the brake disc under the action of elastic restoring force. Thus, when the driver does not need to brake, the driver can release the actuating force to the driving screw 51 through the operating lever or the button and other devices, at this time, under the action of the first reset elastic piece 6, the driving screw 51 rotates to enable the movable frame 2 to drive the second brake pad 4 to move towards the direction away from the first brake pad 3, so as to release the pressing force to the brake disc, and meanwhile, under the action of the second reset elastic piece 7, the first brake pad 3 can be pulled to move towards the direction away from the second brake pad 4, so that the brake disc is completely released.

The first return elastic member 6 and the second return elastic member 7 may be any suitable elastic member, such as a spring, a shrapnel, a rubber member, etc., which is not limited by the present disclosure. In one embodiment of the present disclosure, the first return elastic member 6 may be a torsion spring, where the torsion spring is sleeved on the driving screw 51, one end of the torsion spring is disposed on the movable frame 2, and the other end of the torsion spring is disposed on the rocker 521, when the rocker 521 drives the driving screw 51 to rotate relative to the movable frame 2, the torsion spring generates a torque, and after the force of the rocker 521 is released, the rocker 521 returns to a position before rotation under the action of the torsion spring, so as to drive the driving screw 51 to rotate reversely, thereby releasing the pressing force of the first brake pad 3 and the second brake pad 4 on the brake disc.

Further, the second return elastic member 7 in the embodiment of the present disclosure may be a return spring and a fixing rod, as shown in fig. 3 and 6, one end of the fixing rod is fixed on the first brake pad 3, the other end passes through the retainer and protrudes out of the retainer and is formed as a stop end, the return spring is sleeved on a section of the fixing rod protruding out of the retainer, and one end of the return spring abuts against the retainer, the other end abuts against the stop end of the fixing rod, when the driving screw 51 pushes the first brake pad 3 to approach the brake disc, the first brake pad 3 drives the fixing rod to move, so that the return spring is compressed, and after the force of the driving screw 51 to the first brake pad 3 is released, the fixing rod pulls the first brake pad 3 to move away from the brake disc under the action of the elastic restoring force of the return spring, so as to release the braking force to the brake disc.

The first brake pad 3 and the second brake pad 4 may be fixed to the movable frame 2 in various manners, in one example, as shown in fig. 1 and 4, the movable frame 2 includes a U-shaped mounting structure 22, two opposite side walls of the U-shaped mounting structure 22 are respectively formed with a limiting groove 221 and a fixing portion 222, the fixing portion 222 is detachably mounted on the U-shaped mounting structure 22, the first brake pad 3 is slidably embedded in the limiting groove 221, and the second brake pad 4 is fixed to the fixing portion 222. The limiting groove 221 can guide the moving direction of the first brake pad 3, avoid the first brake pad 3 from shifting, and ensure the braking effect; the fixing portion 222 is configured to be detachable, so that the first brake pad 3 and the second brake pad 4 can be conveniently installed, and the assembling difficulty is reduced.

The mount 1 in the embodiment of the present disclosure fixes the brake mechanism to the vehicle body and serves to mount and protect the movable frame 2, and the mount 1 may be constructed in any suitable structure, which is not limited by the present disclosure. As shown in fig. 3, 4 and 6, the fixed frame 1 includes a body 11, a guide rod 12 and a stop member 13, one end of the guide rod 12 is fixed on the body 11, the other end is fixed on the stop member 13, a sleeve 23 is formed on the movable frame 2, and the sleeve 23 is slidably sleeved on the guide rod 12 to reciprocate along the guide rod 12 under the action of a driving assembly. The arrangement direction of the guide rod 12 is consistent with the moving direction of the first brake pad 3 and the second brake pad 4, and the guide rod 12 can limit the range of the reciprocating linear movement of the movable frame 2, so that the moving precision of the movable frame 2 is ensured.

Further, the body 11 of the fixed frame 1 may be formed in a U-shaped structure and disposed around an outer sidewall of the movable frame 2 to protect the movable frame 2 from interference of other vehicle components. In addition, the two guide rods 12 and the two sleeves 23 can be respectively arranged at the two ends of the body 11, the sleeves 23 are respectively matched with the guide rods 12 in a sliding manner, the two guide rods 12 can avoid the phenomena of deflection and the like of the movable support in the moving process, and the braking reliability is ensured. Further, the sleeves 23 may be provided at both sides of the screw through hole 21 of the movable frame 2 to be able to resist torque generated to the movable frame 2 when the driving screw 51 rotates in the screw through hole 21.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. The brake mechanism is characterized by comprising a fixed frame (1), a movable frame (2), a first brake block (3), a second brake block (4) and a driving assembly, wherein the movable frame (2) is arranged on the fixed frame (1) in a relatively movable manner, the first brake block (3) is arranged on the movable frame (2) in a relatively movable manner, the second brake block (4) is fixed on the movable frame (2) and is arranged opposite to the first brake block (3) so as to form a space for clamping a brake disc, and the driving assembly is connected with the first brake block (3) and the movable frame (2) and is used for driving the first brake block (3) and the second brake block (4) to be close to and far away from the brake disc so as to realize braking and releasing of the brake disc; the driving assembly comprises a threaded driving piece which is in threaded fit with the movable frame so as to drive the movable frame to do linear motion relative to the fixed frame when the threaded driving piece rotates; the screw drive piece is a drive screw (51), the drive screw (51) comprises a first end (511) and a middle screw thread section (513), the movable frame (2) comprises a screw thread through hole (21), the middle screw thread section (513) is in screw thread fit with the screw thread through hole (21), the first end (511) is selectively abutted to the first brake pad (3), so that the first end (511) pushes the first brake pad (3) to compress the brake disc, and the middle screw thread section (513) drives the movable frame (2) to move, so that the second brake pad (4) is driven to compress the brake disc.

2. The brake mechanism of claim 1, wherein the drive assembly further comprises an actuator, the drive screw (51) comprising a second end (512), the second end (512) being connected to the actuator (52), the actuator (52) being adapted to rotate the drive screw (51).

3. A brake mechanism according to claim 2, characterized in that the actuating member (52) comprises a rocker arm (521), a transmission member and an operating lever, one end of the rocker arm (521) being fixed to the second end (512) and the other end being connected to the operating lever via the transmission member, the operating lever being adapted to control the rotation of the rocker arm (521).

4. A brake mechanism according to claim 3, wherein one end of the rocker arm (521) is formed as a collar structure (5211), an inner side wall of the collar structure (5211) is formed with an inner thread, an outer side wall of the second end (512) is formed with an outer thread, and the collar structure (5211) is sleeved on the second end (512) and is in threaded engagement with the second end (512).

5. A brake mechanism according to claim 2, wherein the actuator (52) comprises a motor (522) and an operating button, an output shaft of the motor (522) being drivingly connected to the second end (512), the motor (522) being signal-connected to the operating button, the operating button being adapted to control the motor (522) to start and stop.

6. The brake mechanism according to claim 2, wherein the driving assembly further comprises a first reset elastic member (6) and a second reset elastic member (7), the first reset elastic member (6) is arranged at the second end portion (512) and is used for driving the driving screw (51) to rotate under the action of elastic restoring force, and the second reset elastic member (7) is mounted on the movable frame (2) and is connected with the first brake pad (3) and is used for driving the first brake pad (3) to move away from the brake disc under the action of elastic restoring force.

7. The braking mechanism as claimed in claim 1, wherein the movable frame (2) includes a U-shaped mounting structure (22), two opposite side walls of the U-shaped mounting structure (22) are respectively formed with a limiting groove (221) and a fixing portion (222), the fixing portion (222) is detachably mounted on the U-shaped mounting structure (22), the first brake pad (3) is slidably embedded in the limiting groove (221), and the second brake pad (4) is fixed on the fixing portion (222).

8. The brake mechanism according to claim 1, wherein the fixed frame (1) comprises a body (11), a guide rod (12) and a stop member (13), one end of the guide rod (12) is fixed on the body (11), the other end of the guide rod is fixed with the stop member (13), a sleeve (23) is formed on the movable frame (2), and the sleeve (23) is slidably sleeved on the guide rod (12) so as to reciprocate along the guide rod (12) under the action of the driving assembly.

9. A vehicle comprising a brake mechanism as claimed in any one of claims 1 to 8.