CN220551409U - Brake disc of motorcycle - Google Patents

Abstract

The utility model provides a motorcycle brake disc, which relates to the technical field of brake systems and comprises the following components in part by weight; the device comprises a stop piece, an inner disc and an outer disc in a circular ring shape, wherein the outer disc is provided with a plurality of connecting parts extending towards the inside; the inner disc is provided with a plurality of positioning cavities allowing the connecting part to move along the axial direction of the inner disc, and the positioning cavities are provided with at least one open end; the stopper is configured to be mountable on the open end and has a face restricting movement of the connecting portion in an axial direction of the inner disk. The utility model solves the problem that in the prior art, a movable gap is easy to appear between the inner disc and the outer disc, so that a braking system is unstable.

Description

Brake disc of motorcycle

Technical Field

The utility model relates to the technical field of braking systems, in particular to a motorcycle brake disc.

Background

The brake disc is a necessary part of all vehicle braking systems, and is fixed on an axle and rotates together with wheels, when in braking, a brake block is extruded onto an outer disc under the pushing of a clamping piston, and the rotating speed of the wheels is reduced through the friction force between the brake block and the brake disc, so that the purpose of decelerating and braking the vehicle is achieved.

At present, reference may be made to a motorcycle brake disc provided by the patent with publication number CN210889849U, in which a completely circular and through shaft hole is usually formed between an outer disc and an inner disc of a conventional brake disc, and the two end surfaces outside the shaft hole are locked by a limit shaft or a bolt after penetrating into the shaft hole, so that the effect of fixing the outer disc and the inner disc can be achieved;

however, since the brake disc needs to rotate along with the wheel, a large degree of vibration is generated during the use process; in addition, the transmission of torque between the inner disc and the outer disc also needs to depend on the bolts, so that the bolts are stressed more, the bolts are easy to loosen in the vibration process, and a movable gap is formed between the inner disc and the outer disc; the unstable brake system is caused, and the problems of noise and blocking are easy to occur.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides a motorcycle brake disc, which solves the problem that in the prior art, a movable gap is easy to occur between an inner disc and an outer disc, so that a brake system is unstable.

According to an embodiment of the present utility model, a brake disc for a motorcycle includes;

a stop piece, an inner disk and an outer disk which is in a circular ring shape, wherein,

the outer disc has a plurality of connection portions extending toward an inside thereof;

the inner disc is provided with a plurality of positioning cavities allowing the connecting part to move along the axial direction of the inner disc, and the positioning cavities are provided with at least one open end;

the stopper is configured to be mountable on the open end and has a face restricting movement of the connecting portion in an axial direction of the inner disk.

The working process of the utility model is as follows:

when the connecting device is used, the outer disc is vertically sleeved outside the inner disc downwards along the axis of the connecting device, in the process, the connecting part passes through the open end from top to bottom and enters the positioning cavity, then the stop piece can be installed, the stop piece is used for limiting the movement of the connecting part, and the purpose of connecting the inner disc and the outer disc is achieved.

The technical scheme provided by the disclosure has at least the following beneficial effects:

the connecting part of the outer disc is arranged in the positioning cavity of the inner disc, and the positioning cavity only allows the connecting part to move along the axial direction of the outer disc, so that when the inner disc is rotated, the torque along the circumferential direction of the connecting part can be directly transmitted to the outer disc through the connecting part; based on this, this brake disc is used for restricting the stopper that inner disc and outer disc prevented that both become flexible breaks away from, can not transmit the moment of torsion for between outer disc and the inner disc, and only when restricting outer disc or inner disc relative vibration, the skew of two along its axial, and the burden on the aforesaid stopper is less promptly, can be fastened with inner disc and outer disc spacing together, and be difficult for becoming flexible very much.

In another embodiment, the open end has a limiting groove, the stop member is mounted in the limiting groove, and one end of the stop member facing away from the connecting portion has a surface that can fit with the limiting groove.

In another embodiment, the stop has a retraction end configured to resiliently retract to exit the limit groove when subjected to a force in a direction perpendicular to the inner disc axis.

In another embodiment, the stopper comprises a C-shaped snap ring having a body resiliently contractible toward the interior thereof.

In another embodiment, the snap ring has a large end extending toward the inside thereof at both ends.

In another embodiment, the large end has a hole disposed axially through the inner disc.

In another embodiment, the open end is further provided with a stepped groove which extends in an arc shape and is provided with a stepped surface perpendicular to the axis of the inner disc, and a gasket is clamped in the stepped groove;

the step surface is configured to be flush with the top end surface of the connecting part when the connecting part slides into the positioning cavity;

the end face of the gasket, which is away from the connecting part, is attached to the stop piece.

In another embodiment, the stepped slot extends over an arc of greater than 180 °.

In another embodiment, an end of the positioning cavity remote from the open end is closed.

In another embodiment, the connecting part extends towards the axis of the outer disc and is provided with a vertical wall surface fitting with the positioning cavity.

Drawings

Fig. 1 is a schematic diagram of an assembly structure according to an embodiment of the present utility model.

Fig. 2 is a partial enlarged view at a in fig. 1.

Fig. 3 is a schematic view of the components of one embodiment of the present utility model, wherein the inner disc, outer disc, gasket and stopper are vertically separated.

Fig. 4 is a partial enlarged view at B in fig. 3.

Fig. 5 is a schematic structural view of an inner disc according to one embodiment of the present utility model.

Fig. 6 is a partial enlarged view at C in fig. 5.

In the above figures:

1. an outer disk;

10. a connection part;

2. an inner disk;

20. a locking part;

201. a positioning cavity; 202. an open end; 203. a clasp; 204. a gasket;

202a, a limit groove; 202b, a stepped groove;

203a, a constriction end; 203b, big end.

Detailed Description

Various embodiments of the utility model are disclosed in the accompanying drawings, and for purposes of explanation, numerous practical details are set forth in the following description. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Furthermore, for the purpose of simplifying the drawings, some of the presently available structures and elements are shown in a simplified schematic form, and the same reference numerals will be used throughout the drawings to designate the same or similar elements. Features of different embodiments may be applied interactively without conflict.

Referring to fig. 1 and 2, an embodiment of the present utility model provides a brake disc for a motorcycle, including:

a stop, an inner disc 2 and an outer disc 1 in the form of a ring, wherein,

the inner ring side wall surface of the outer disc 1 is formed with a plurality of connecting parts 10 extending towards the axis direction thereof, the specific number of the connecting parts 10 is not limited, for example, the number of the connecting parts can be 5 or 10, and the connecting parts can be adaptively changed according to the connection strength and the diameter between the inner disc 2 and the outer disc 1; the connecting parts 10 are uniformly distributed in the outer disc 1;

as shown in fig. 1 and fig. 5, the outer ring side of the inner disc 2 is formed with locking portions 20 with the same number as the connecting portions 10, and each locking portion 20 is provided with a positioning cavity 201 extending along the axial direction of the inner disc 2, which is described with the axial direction of the inner disc 2 as the vertical direction for convenience of understanding; the inner disc 2 may be circular as in fig. 1, but may have other polygonal structures, and is not limited herein;

as shown in fig. 2 and 6, since the connecting portion 10 needs to slide vertically into the positioning cavity 201, the top end opening of the positioning cavity 201 is configured to form an open end 202, and meanwhile, in order to avoid the vertical movement of the connecting portion 10, the side surface of the ring of the positioning cavity 201 is provided with a notch communicated with the inside thereof;

further, in order to enhance the limiting effect of the positioning cavities 201 on the connecting portion 10, the bottom ends of the positioning cavities 201 are all closed, and when the connecting portion 10 slides down to the positioning cavities 201, the bottom end surfaces of the positioning cavities 201 can be tightly attached to each other, so that the vertical downward sliding of the connecting portion 10 is limited;

the stopper is detachably mounted on the open end 202 and has a surface restricting upward movement of the connection part 10 in the vertical direction;

there are a variety of stopper configurations, here the following two possible implementations are illustrated:

it should be understood that, in this embodiment, the stopper may be a screw plug, where the open end 202 has a circular arc-shaped inner cavity communicating with the positioning cavity 201, the inner cavity has an internal thread, and the screw plug may be screwed into the inner cavity until a bottom end surface of the screw plug is attached to a top end surface of the connecting portion 10, so as to limit the sliding of the connecting portion 10 in a vertical direction;

secondly, in order to further enhance the anti-shake performance of the stop piece, a limit groove 202a larger than the inner diameter of the positioning cavity 201 may be further provided at the open end 202, the limit groove 202a is communicated with the positioning cavity 201, the stop piece is elastically clamped in the limit groove 202a along the direction perpendicular to the vertical direction, part of the upper end surface of the stop piece is attached to the upper end surface of the limit groove 202a, part of the lower end surface of the stop piece is attached to the lower end surface of the limit groove 202a, and the other part of the lower end surface extends towards the inside of the positioning cavity 201 to limit the vertical upward movement of the connecting portion 10;

since the connecting portion 10 can only push the stopper vertically, it cannot always provide a force perpendicular to the vertical to the stopper, i.e., the stopper cannot elastically contract to be separated from the open end 202 by the pushing of the connecting portion 10;

based on this, the specific structure of the present implementation is also various;

for example, the stop member may have a block-shaped body, and it should be noted that, in this embodiment, all the other drawings are not shown, and the circumferential side of the block-shaped body is elastically connected with a plurality of shrinkage ends along the direction perpendicular to the vertical direction, and in use, the shrinkage ends are elastically abutted against the limit grooves 202a by springs or shrapnel; when the stop piece needs to be disassembled, each shrinkage end can be pulled vertically to elastically shrink until the shrinkage ends are separated from the limit groove 202a;

as another example, as shown in fig. 2, 4 and 5, the stopper may be a C-shaped elastic snap ring 203, and the two ends of the snap ring 203 are contraction ends 203a, which have the characteristics of being elastically deformable toward the inside of the snap ring 203, so as to change the outer diameter of the snap ring 203;

when the clamping ring 203 is installed, the two ends of the clamping ring 203 can be tensioned to enable the clamping ring 203 to elastically shrink and deform inwards, so that the clamping ring 203 can smoothly enter the inner cavity of the open end 202, then the clamping ring 203 is loosened to enable the clamping ring to be elastically clamped into the limiting groove 202a, and of course, the limiting groove 202a is kept consistent with the outer ring side shape of the clamping ring 203 and is arc-shaped, the radian of the limiting groove is larger than 180 degrees, and the clamping ring 203 cannot be separated from the limiting groove 202a at will;

furthermore, in order to enhance the limiting effect of the snap ring 203 on the connection portion 10, a hard gasket 204, such as a rigid gasket ring, may be further disposed between the snap ring 203 and the connection portion 10; similarly, the open end 202 is provided with a step groove 202b for accommodating the gasket 204 and preventing the gasket from being separated, the step groove 202b may be, for example, provided with a step surface perpendicular to the vertical direction and having an arc shape equal to that of the limit groove 202a, the gasket 204 may be placed on the step surface, the bottom of the gasket 204 is simultaneously attached to the step surface and the top end surface of the connecting portion 10, and the top of the gasket 204 is abutted against the bottom of the snap ring 203;

through the arrangement, when the gasket 204 is placed in the stepped groove 202b, the radians of the stepped groove 202b and the limit groove 202a are larger than 180 degrees, so that the gasket 204 cannot be separated along the radial direction of the stepped groove 202b, and meanwhile, the stepped surface and the clamping ring 203 limit the gasket 204 to move vertically, so that the gasket 204 can be locked in the open end 202 stably;

by additionally arranging the gasket 204 between the clamping ring 203 and the connecting part 10, a part of the end surface of the clamping ring 203 protruding out of the limiting groove 202a can be tightly pressed on the gasket 204, so that the stress on the top end of the connecting part 10 is more balanced and stable;

further, in order to increase the contact area between the snap ring 203 and the spacer 204 to achieve the effect of enhancing the connection stability of the two, the two ends of the snap ring 203 are provided with large ends 203b extending towards the inside of the snap ring, and meanwhile, the middle part of the body of the snap ring 203 is wider and thicker than the two ends of the body of the snap ring 203, so that the middle part of the snap ring 203 can be provided with more parts protruding out of the limiting groove 202a to be pressed on the spacer 204;

meanwhile, the two large ends 203b are respectively provided with a vertical through hole, so that a worker can clamp the two holes conveniently by using a vertical column body, and then the clamping ring 203 is driven to shrink and withdraw from the limiting groove 202a;

the working principle of the utility model is as follows:

when the vertical sleeve type connecting device is used, the outer disc 1 is vertically sleeved outside the inner disc 2, in the process, the connecting part 10 passes through the open end 202 from top to bottom and enters the positioning cavity 201 until the connecting part 10 is attached to the bottom end of the connecting part 10 and the bottom end of the positioning cavity 201, at the moment, the ring side surface of the connecting part 10 is also attached to the vertical wall surface of the positioning cavity 201, and the top end of the connecting part 10 is flush with the step surface of the open end 202;

then vertically placing the gasket 204 until the bottom end surface of the gasket is attached to the top end surface and the step surface of the connecting part 10, finally pulling two holes on the large end 203b of the snap ring 203 to drive the snap ring 203 to elastically deform and shrink inwards until the outer diameter of the snap ring 203 is smaller than the inner diameter of the open end 202, placing the snap ring 203 into the limit groove 202a, and then recovering and elastically clamping the snap ring 203 into the limit groove 202a;

at this time, the outer ring side part of the snap ring 203 is tightly attached to the upper and lower end surfaces of the limit groove 202a, and the part of the snap ring 203 located at the inner ring side is protruded from the limit groove 202a and tightly pressed on the top end surface of the gasket 204;

with the arrangement, when the inner disc 2 rotates, the connecting part 10 and the outer disc 1 can be driven to rotate together by the vertical wall of the positioning cavity 201;

meanwhile, the top end surface and the bottom end surface of the connecting part 10 are respectively limited by the gasket 204 and the bottom end surface of the positioning cavity 201, so that the connecting part 10 cannot be separated from the positioning cavity 201 vertically in the rotation process, and the stability between the outer disc 1 and the inner disc 2 is further ensured.

Since the inner disc 2 is rotated, torque thereof in the circumferential direction can be directly transmitted to the outer disc 1 through the connection portion 10; at this time, the clamping ring 203 can not transmit torque between the outer disc and the inner disc, but only limits the axial offset of the outer disc 1 or the inner disc 2 when the outer disc and the inner disc vibrate relatively, the force is always smaller, the clamping ring 203 in the brake disc is lighter in load, and meanwhile, the inner disc 2 and the outer disc 1 are tightly limited together, so that the brake disc is not easy to loosen.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. A motorcycle brake disc comprising;

a stop element, an inner disk (2) and an outer disk (1) which is in the shape of a circular ring,

the outer disc (1) has a plurality of connecting portions (10) extending toward the inside thereof;

the inner disc (2) is provided with a plurality of positioning cavities (201) which allow the connecting part (10) to move along the axial direction of the inner disc (2), and the positioning cavities (201) are provided with at least one open end (202);

the stopper is configured to be mountable on the open end (202) and has a face restricting movement of the connecting portion (10) in an axial direction along the inner disc (2).

2. A motorcycle brake disc as claimed in claim 1, wherein: the open end (202) is provided with a limit groove (202 a), the stop piece is arranged in the limit groove (202 a), and one end of the stop piece, which is away from the connecting part (10), is provided with a surface which can be attached to the limit groove (202 a).

3. A motorcycle brake disc as claimed in claim 2, wherein: the stopper has a constricted end (203 a) configured to be elastically contractible to withdraw from the limit groove (202 a) when receiving a force in an axial direction perpendicular to the inner disc (2).

4. A motorcycle brake disc as claimed in claim 3, wherein: the stopper includes a C-shaped snap ring (203), the snap ring (203) having a body elastically contractible along an inner portion thereof.

5. A motorcycle brake disc as defined in claim 4, wherein: the both ends of the snap ring (203) have large ends (203 b) extending toward the inside thereof.

6. A motorcycle brake disc as defined in claim 5, wherein: the large end (203 b) has a hole penetrating the inner disk (2) in the axial direction.

7. A motorcycle brake disc as claimed in any one of claims 1 to 6, wherein: the open end (202) is further provided with a stepped groove (202 b), the stepped groove (202 b) extends in an arc shape and is provided with a stepped surface perpendicular to the axis of the inner disc (2), and a gasket (204) is clamped in the stepped groove (202 b);

the step surface is configured to be flush with an end surface of the connecting portion (10) when the connecting portion (10) is located in the positioning cavity (201);

the end face of the gasket (204) facing away from the connecting part (10) is attached to the stop piece.

8. A motorcycle brake disc as claimed in claim 7, wherein: the stepped groove (202 b) extends over an arc of greater than 180 °.

9. A motorcycle brake disc as claimed in any one of claims 1 to 6, wherein: one end of the positioning cavity (201) away from the open end (202) is arranged in a closed mode.

10. A motorcycle brake disc as claimed in any one of claims 1 to 6, wherein: the connecting part (10) extends towards the axis of the outer disc (1) and is attached to the vertical wall surface of the positioning cavity (201).