CN107401563B

CN107401563B - Friction plate assembly and brake

Info

Publication number: CN107401563B
Application number: CN201710668029.0A
Authority: CN
Inventors: 杨�一; 陈世国; 彭玉礼; 肖胜宇; 钟成堡
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2017-08-07
Filing date: 2017-08-07
Publication date: 2023-06-06
Anticipated expiration: 2037-08-07
Also published as: CN107401563A

Abstract

The invention provides a friction plate assembly and a brake. The friction plate assembly comprises a friction plate, a hub and an elastic connecting piece. The hub is movably disposed relative to the friction plate. The elastic connecting piece is arranged between the friction plate and the wheel hub, and is used for connecting the wheel hub to the friction plate and enabling the wheel hub to move relative to the friction plate. When the rotary part rotates around the rotation center line of the rotary part, the wheel hub drives the friction piece to rotate together through the elastic connecting piece. The rotated friction plate automatically returns to the right according to the gyroscopic effect and keeps vertical to the rotation center line. Therefore, the friction plate which is possibly eccentrically installed originally can be corrected through the self-adjusting performance of the friction plate assembly, and the friction plate in the using process is ensured not to be eccentric.

Description

Friction plate assembly and brake

Technical Field

The invention relates to the technical field of braking, in particular to a friction plate assembly and a brake.

Background

The brake is an important basic component, and is mainly used for precisely controlling and braking a rotating mechanism (such as a motor device and the like).

In the structure of a traditional brake, a friction plate is arranged on a hub through a hole on the friction plate, and then the friction plate is assembled in the brake through the hub for use. Because the friction plate is made of composite materials, the machining performance of the materials is poor, the machining dimensional accuracy is not high, and the eccentricity is extremely easy to cause in the process of being matched with the hub for installation.

The eccentric phenomenon of the friction plate can cause noise generated by the contact of the friction plate and the baffle plate or the armature, in addition, the friction plate can be worn, the reliability of the brake is reduced, and the eccentric phenomenon can also cause uneven stress of the friction plate during braking to cause poor braking effect of the brake and even breakage of the friction plate.

Disclosure of Invention

The invention mainly aims to provide a friction plate assembly and a brake, which are used for solving the problem that friction plates in the friction plate assembly and the brake in the prior art are easy to eccentric.

In order to achieve the above object, according to one aspect of the present invention, there is provided a friction plate assembly including a friction plate, a hub, and an elastic connection member, the hub being movably disposed with respect to the friction plate; the elastic connecting piece is arranged between the friction plate and the wheel hub, and is used for connecting the wheel hub to the friction plate and enabling the wheel hub to move relative to the friction plate.

Further, the friction plate is formed with a mounting portion on which the hub is mounted.

Further, the installation part is an installation hole formed in the friction plate, and the hub is movably installed in the installation hole and is connected with the friction plate through an elastic connecting piece.

Further, the middle part cluster of wheel hub is in the mounting hole, and wheel hub's first end stretches out to the first side of friction disc, is provided with the first side butt cooperation of anticreep portion and friction disc on the first end of wheel hub, and wheel hub's second end stretches out to the second side of friction disc, is provided with connecting portion and elastic connection spare cooperation on the second end of wheel hub.

Further, a through groove of the accessible connecting portion is formed in the inner wall of the mounting hole, the elastic connecting piece is an elastic piece, the elastic piece is arranged on the second side of the friction piece and is covered on the through groove, and the connecting portion passes through the through groove and is abutted to one side, far away from the through groove, of the elastic piece.

Further, the elastic sheet is arched and protrudes toward the connecting portion.

Further, the mounting hole is a square hole, and the hub is a quadrangular prism which is in clearance fit with the square hole.

Further, the elastic connection member is detachably connected to the friction plate.

Further, the friction plate includes a core plate and a friction member disposed on the core plate.

Further, the friction pieces are two, and the two friction pieces are respectively arranged at two sides of the core plate.

Further, the friction member is attached to the core plate by bonding.

Further, the core plate is circular, and correspondingly the friction piece is also circular.

In order to achieve the above object, according to one aspect of the present invention, there is provided a brake including a friction plate assembly as described above.

When the technical scheme of the invention is applied, the hub is connected with the rotating part in the brake, and when the rotating part rotates around the rotation center line of the rotating part, the hub drives the friction piece to rotate together through the elastic connecting piece. Since the hub is connected elastically to the friction plate by the elastic connection, the hub is movable relative to the friction plate in a range of positions defined by the elastic connection. The rotated friction plate automatically returns to the right according to the gyroscopic effect and keeps vertical to the rotation center line. Therefore, the friction plate which is possibly eccentrically installed originally can be corrected through the self-adjusting performance of the friction plate assembly, and the friction plate in the using process is ensured not to be eccentric.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 illustrates a schematic front elevational view of an embodiment of a friction plate assembly according to the present invention;

FIG. 2 illustrates a rear structural schematic view of the embodiment of the friction plate assembly of FIG. 1.

FIG. 3 illustrates a schematic structural view of a friction plate of the friction plate assembly of FIG. 1.

Wherein the above figures include the following reference numerals:

10. a friction plate; 11. a core plate; 12. a friction member; 111. a mounting hole; 112. a pass through slot; 20. a hub; 21. an anti-falling part; 22. a connection part; 30. an elastic connection member.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in other environments. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 and 2 illustrate an embodiment of a friction plate assembly of the present invention comprising a friction plate 10, a hub 20 and an elastic connection 30. The hub 20 is movably disposed with respect to the friction plate 10. The elastic connection member 30 is disposed between the friction plate 10 and the hub 20, and the elastic connection member 30 is used to connect the hub 20 to the friction plate 10 and allow the hub 20 to move relative to the friction plate 10.

When the technical scheme of the embodiment is used, the hub 20 is connected with the rotating component in the brake, and when the rotating component rotates around the rotation center line of the rotating component, the hub 20 drives the friction piece 12 to rotate together through the elastic connecting piece 30. Since the hub 20 is elastically coupled to the friction plate 10 by the elastic coupling member 30, the hub 20 is movable with respect to the friction plate 10 in a range of positions defined by the elastic coupling member 30. The rotated friction plate 10 is automatically aligned according to the gyroscopic effect and kept perpendicular to the rotation center line. Therefore, the friction plate 10 which is possibly eccentrically installed originally can be righted through the self-adjusting performance of the friction plate assembly, and the friction plate 10 in the using process is ensured not to be eccentric.

By adopting the technical scheme of the embodiment, the friction plate assembly can be enabled to be self-regulated to be not contacted with the baffle plate or the armature of the brake in rotation through dynamic balance of the friction plate assembly in rotation, so that no noise is generated in the operation process, and the problem of overall reliability reduction of the brake caused by non-braking abrasion of the friction plate is solved. In addition, by adopting the technical scheme of the embodiment, the braking effect of the brake can be improved. After the friction plate component is self-regulated, the dynamic balance effect is good, and the friction plate can be braked on the whole area of the friction surface of the friction plate during braking, so that the problem that the overall braking effect of the brake is poor due to improper assembly and poor matching effect is avoided and the problem that the friction plate is cracked due to uneven stress and the overall reliability of the corresponding brake is reduced due to uneven stress of the friction plate is avoided.

As an alternative embodiment, the friction plate 10 is formed with a mounting portion on which the hub 20 is mounted, and the hub 20 can be more stably mounted on the friction plate 10 by the mounting portion. Preferably, as shown in fig. 1, in the technical solution of the present embodiment, the mounting portion is a mounting hole 111 formed on the friction plate 10, and the hub 20 is movably mounted in the mounting hole 111 and connected to the friction plate 10 through the elastic connection member 30. Generally, the center of gravity of the friction plate 10 is in the plate body, the mounting part is a hole formed in the friction plate 10, so that the hub 20 can be more easily mounted at the center of gravity of the friction plate 10, the hub 20 can be more stably driven to rotate the friction plate 10, and dynamic balance during rotation is ensured.

As shown in fig. 1 and 2, the middle part of the hub 20 is strung in the mounting hole 111, the first end of the hub 20 extends to the first side of the friction plate 10, and the first end of the hub 20 is provided with an anti-falling part 21 in abutting fit with the first side of the friction plate 10 so as to limit the first end of the hub 20 to the first side of the friction plate 10 and prevent the first end of the hub 20 from falling out of the mounting hole 111. The second end of the hub 20 extends to the second side of the friction plate 10, and a connection 22 is provided on the second end of the hub 20 to cooperate with the resilient connecting member 30 to restrain the second end of the hub 20 to the second side of the friction plate 10. Meanwhile, the second end of the hub 20 is matched with the elastic connecting piece 30, so that the friction plate 10 can move relative to the hub 20 in a position range defined by the elastic connecting piece 30, and the automatic alignment of the friction plate 10 can be realized.

As shown in fig. 1, in the technical solution of the present embodiment, a through groove 112 through which the connection portion 22 can pass is formed in the inner wall of the mounting hole 111. When the hub 20 is assembled to the friction plate 10, the connection portion 22 of the second end of the hub 20 is aligned with the through groove 112 so as to be placed on the second side of the friction plate 10 through the mounting hole 111. The elastic connection 30 is an elastic sheet disposed on the second side of the friction plate 10 and covering the passing groove 112. When in use, the connecting part 22 passes through the through groove 112 to be abutted with one side of the elastic sheet far away from the through groove 112, and the elastic sheet is used for being matched with the connecting part 22 to limit the second end of the hub 20 to the second side of the friction sheet 10, and the whole hub 20 can be enabled to move in the deformation range of the elastic sheet, so that the friction sheet 10 in the rotating process can be enabled to self-regulate and return. As a preferred embodiment, the resilient tab is arched and projects toward the connecting portion 22 to provide more room for rebound to facilitate self-adjusting alignment of the friction plate 10.

In the solution of the present embodiment, the elastic connection member 30 is detachably connected to the friction plate 10. As an alternative embodiment, as shown in fig. 1, the elastic connection member 30 may be mounted to the friction plate 10 by a screw. After the second end of the hub 20 is located on the second side of the friction plate 10, the elastic connection member 30 is mounted on the friction plate 10 and located between the connection portion 22 and the friction plate 10, so that the elastic connection member 30 plays a role of elastic connection.

As a further alternative, the elastic connection 30 may also be a spring element.

In the technical solution of the present embodiment, as shown in fig. 1 and 2, the mounting hole 111 is a square hole, and the hub 20 is a quadrangular prism shape in clearance fit with the square hole. In this way, the hub 20 and the mounting hole 111 are more convenient to form a stress fit structure, so that the hub 20 can more conveniently drive the friction plate 10 to rotate.

As shown in fig. 3, in the technical solution of the present embodiment, the friction plate 10 includes a core plate 11 and friction members 12 provided on the core plate 11. Based on the above technical solution, the core plate 11 is formed with the mounting hole 111, the hub 20 is mounted on the core plate 11, and the elastic connection member 30 is also assembled between the core plate 11 and the hub 20. Alternatively, the friction member 12 is a plate member made of a friction material.

Alternatively, the friction members 12 are two, and the two friction members 12 are respectively disposed on two sides of the core plate 11. The friction members 12 on both sides of the core plate 11 are respectively used in cooperation with the rotating member and the fixing member in the brake to brake the rotating member. As a preferred embodiment, the friction member 12 is attached to the core plate 11 by bonding. Preferably, the surface of the core plate 11 is textured, dotted or sandblasted to increase the surface roughness of the core plate 11, thereby improving the adhesion between the friction member 12 and the core plate 11. Furthermore, it is also possible to attach the friction member 12 to the core plate 11 by a hot pressing technique.

In the technical solution of the present embodiment, as shown in fig. 3, the core plate 11 is circular, and correspondingly the friction member 12 is also circular. The larger the outer diameter of the core plate 11, the better the automatic centering effect it produces, which is more advantageous for changing the eccentric problem of the friction plate 10 as a whole.

The invention also provides a brake comprising the friction plate assembly. The brake adopting the friction plate assembly can enable the friction plate assembly to be self-adjusted in rotation without contacting with a baffle plate or an armature of the brake through dynamic balance of the friction plate assembly in rotation, so that no noise is generated in the operation process, and the problem of overall reliability reduction of the brake caused by non-braking abrasion of the friction plate is solved. In addition, the braking effect of the brake can be improved. After the friction plate component is self-regulated, the dynamic balance effect is good, and the friction plate can be braked on the whole area of the friction surface of the friction plate during braking, so that the problem that the overall braking effect of the brake is poor due to improper assembly and poor matching effect is avoided and the problem that the friction plate is cracked due to uneven stress and the overall reliability of the corresponding brake is reduced due to uneven stress of the friction plate is avoided.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A friction plate assembly, comprising:

a friction plate (10);

a hub (20) which is movably disposed with respect to the friction plate (10);

an elastic connecting piece (30) arranged between the friction plate (10) and the hub (20), wherein the elastic connecting piece (30) is used for connecting the hub (20) to the friction plate (10) and enabling the hub (20) to move relative to the friction plate (10);

the friction plate (10) is provided with a mounting part, and the hub (20) is mounted on the mounting part;

the installation part is an installation hole (111) formed in the friction plate (10), and the hub (20) is movably installed in the installation hole (111) and is connected with the friction plate (10) through the elastic connecting piece (30);

the middle part of the hub (20) is connected in series in the mounting hole (111), the first end of the hub (20) extends to the first side of the friction plate (10), an anti-falling part (21) is arranged on the first end of the hub (20) and is in butt fit with the first side of the friction plate (10), the second end of the hub (20) extends to the second side of the friction plate (10), and a connecting part (22) is arranged on the second end of the hub (20) and is matched with the elastic connecting piece (30);

the inner wall of the mounting hole (111) is provided with a through groove (112) capable of passing through the connecting part (22), the elastic connecting piece (30) is an elastic piece, the elastic piece is arranged on the second side of the friction piece (10) and is covered on the through groove (112), and the connecting part (22) passes through the through groove (112) and is abutted to one side, away from the through groove (112), of the elastic piece.

2. A friction plate assembly according to claim 1, wherein the resilient plate is arched, protruding towards the connection portion (22).

3. A friction plate assembly according to claim 1, wherein the mounting hole (111) is a square hole and the hub (20) is a quadrangular prism shape that is clearance fit with the square hole.

4. Friction plate assembly according to claim 1, wherein the elastic connection (30) is detachably connected to the friction plate (10).

5. Friction plate assembly according to claim 1, wherein the friction plate (10) comprises a core plate (11) and friction members (12) arranged on the core plate (11).

6. A friction plate assembly according to claim 5, wherein the friction members (12) are two, the two friction members (12) being disposed on either side of the core plate (11).

7. A friction plate assembly according to claim 5, wherein the friction member (12) is attached to the core plate (11) by adhesive bonding.

8. A friction plate assembly according to claim 5, wherein the core plate (11) is circular and correspondingly the friction member (12) is also circular.

9. A brake comprising a friction plate assembly, wherein the friction plate assembly is as claimed in any one of claims 1 to 8.