CN213711709U - Powder metallurgy brake lining - Google Patents
Powder metallurgy brake lining Download PDFInfo
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- CN213711709U CN213711709U CN202022424180.XU CN202022424180U CN213711709U CN 213711709 U CN213711709 U CN 213711709U CN 202022424180 U CN202022424180 U CN 202022424180U CN 213711709 U CN213711709 U CN 213711709U
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Abstract
The utility model provides a pair of powder metallurgy brake lining, include: the steel back is provided with a first supporting part with an equal-width structure and a second supporting part extending outwards from two sides of the first supporting part, and the width of the second supporting part is gradually narrowed outwards from the first supporting part; the hexagonal friction groups are divided into two groups and are arranged on the braking surfaces of the two second supporting parts, each group is provided with three first friction blocks, and the first friction blocks are in a regular hexagonal structure and adjacent to each other in a honeycomb manner; the octagonal friction group is provided with a plurality of second friction blocks which are respectively arranged on the braking surface of the first supporting part, and the second friction blocks are in an octagonal structure; the second friction blocks are provided with a plurality of groups which are distributed in parallel from left to right, each group is provided with a plurality of second friction blocks, and the plurality of second friction blocks are sequentially arranged from top to bottom in a side-to-side manner. The utility model discloses a structure and the distribution mode of clutch blocks, effectual area, the increase effective friction area who has taken steel backing braking surface to can restrict each other, only change between each clutch block.
Description
Technical Field
The utility model relates to a brake lining technical field, concretely relates to powder metallurgy brake lining.
Background
The powder metallurgy brake pad is used as an important component of a brake system of the motor train unit, and influences the safety, stability and comfort of the motor train unit in operation. Along with the continuous promotion of the running speed of the motor train unit, the performance requirement on the powder metallurgy brake pad is also continuously improved.
When the friction block is used, the friction block can incline due to larger braking force; in order to avoid the tilting phenomenon, an anti-rotation boss structure is arranged between the adjacent friction blocks.
The arrangement of the anti-rotation boss structure occupies the space on the steel backing, so that the effective area of the friction block is reduced; the braking effect of the powder metallurgy brake pad is closely related to the effective area of the friction block, and the overall braking effect of the brake pad is further reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the effective area of the clutch blocks of arranging on the steel back of the body among the prior art less, and then reduced brake lining braking effect's defect to a powder metallurgy brake lining is provided.
In order to solve the technical problem, the utility model provides a pair of powder metallurgy brake lining, include:
the steel back is provided with a first supporting part and second supporting parts extending outwards from two sides of the first supporting part, the first supporting part is of an equal-width structure, and the width of the second supporting part is gradually narrowed outwards from the first supporting part;
the hexagonal friction groups are divided into two groups and are arranged on the braking surfaces of the two second supporting parts; each group of hexagonal friction groups is provided with three first friction blocks, each first friction block is in a regular hexagonal structure, and the three first friction blocks are adjacent to each other in a honeycomb manner;
the octagonal friction group is provided with a plurality of second friction blocks which are arranged on the braking surface of the first supporting part in a divided mode, and the second friction blocks are of octagonal structures; the second friction blocks are provided with a plurality of groups which are distributed in parallel from left to right, each group is provided with a plurality of second friction blocks, and the second friction blocks are sequentially distributed in a side-to-side manner from top to bottom.
Preferably, the hexagonal friction group has a first friction block far away from the octagonal friction group, and the first friction block has a vertex angle towards the leftmost edge or the rightmost edge of the steel back.
Preferably, the second friction blocks have four groups distributed from left to right, and each group has three second friction blocks.
Preferably, the first supporting part is of a fan-shaped structure, and the second friction blocks are distributed along an arc from left to right.
Preferably, a gap is reserved between two adjacent first friction blocks and/or between two adjacent second friction blocks.
Preferably, a space is reserved between the left and right adjacent second friction blocks.
Preferably, a space is reserved between the hexagonal friction group and the octagonal friction group.
Preferably, the first friction block or the second friction block includes:
a friction body;
the friction seat is connected to one side, facing the steel back, of the friction body, an installation groove is formed in one side, facing the friction body, of the friction seat, and a through hole communicated with the installation groove is formed in one side, facing away from the friction body, of the friction seat;
one end of the positioning pin extends into the mounting groove through the through hole and is abutted to the friction body, and the other end of the positioning pin is suitable for being connected with the steel backing in a floating mode.
Preferably, an elastic element is arranged between the friction seat and the steel back.
Preferably, the method further comprises the following steps:
the positioning bulges are at least two and are respectively arranged on one side of the friction body facing the friction seat;
the positioning holes are formed in the friction seat, the positioning holes are in one-to-one correspondence with the positioning protrusions, and the positioning protrusions are suitable for extending into the positioning holes.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a powder metallurgy brake lining, the width of the second supporting part is gradually narrowed, the first friction block with regular hexagon structure is distributed on the braking surface of the second supporting part in a honeycomb shape, and the braking surface of the second supporting part is fully occupied; the three first friction blocks are adjacent in a honeycomb shape, and can be mutually restricted and stopped. The first supporting part is of an equal-width structure, and the second friction blocks with the octagonal structures are sequentially distributed in parallel from left to right, so that the braking surfaces of the first supporting part are fully occupied; the second friction block is opposite to the edge from top to bottom in turn, and can be restricted and stopped rotating mutually. The friction blocks are structurally and distributively arranged, so that the area of the steel backing braking surface is effectively occupied, the effective friction area is increased, and the friction blocks can be mutually restricted and stopped.
2. The powder metallurgy brake pad provided by the utility model is characterized in that the apex angle of the first friction block positioned at the rightmost side of the steel backing is opposite to the rightmost side edge; the first friction block is positioned at the leftmost side of the steel backing, and the vertex angle of the first friction block is opposite to the leftmost edge; the narrowest region on the braking surface of the second supporting part is fully utilized, and the effective friction area is increased.
3. The utility model provides a powder metallurgy brake lining, first supporting part are fan-shaped structure, and the second clutch blocks distributes along the pitch arc from a left side and the right side, has fully taken the region of the upper and lower edge of first supporting part braking surface, has increased effective friction area.
4. The utility model provides a powder metallurgy brake lining, the gap between two adjacent second clutch blocks about and between the first clutch block is favorable to the heat dissipation between each clutch block, avoids the frictional behavior of high temperature influence clutch block to do benefit to the smooth and easy discharge of abrasive dust.
5. The utility model provides a powder metallurgy brake lining controls the interval of reserving between the adjacent second clutch blocks and between hexagon friction group and the octagon friction group, can avoid adjacent clutch blocks to appear inclining and the phenomenon of the wearing and tearing that bumps often.
6. The utility model provides a powder metallurgy brake lining, clutch blocks float with the steel backing and are connected, and the unsteady regulation when can realizing the brake of clutch blocks reduces the eccentric wear phenomenon that the clutch blocks slope and lead to.
7. The utility model provides a powder metallurgy brake lining, location arch and locating hole cooperation have realized the friction body and have connect in-process accurate positioning with the friction seat.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the steel backing provided in the present invention.
Fig. 2 is a rear view of the steel backing provided in the present invention.
Fig. 3 is a front view of the powder metallurgy brake pad provided in the present invention.
Fig. 4 is a schematic perspective view of the powder metallurgy brake pad provided in the present invention.
Fig. 5 is a schematic perspective view of a first friction block provided in the present invention.
Fig. 6 is a front cross-sectional view of the first friction block provided in the present invention.
Fig. 7 is a sectional view taken along the line a-a in fig. 3.
Description of reference numerals:
1. a steel backing; 2. a dovetail groove; 3. a first support section; 4. a second support portion; 5. a first groove; 6. a second groove; 7. connecting holes; 8. a second friction block; 9. a first friction block; 10. a friction body; 11. a friction seat; 12. positioning pins; 13. positioning the projection; 14. positioning holes; 15. an arcuate flange; 16. a clamp spring; 17. An elastic member; 18. an annular groove.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The powder metallurgy brake pad provided by the embodiment comprises: steel backing 1, hexagonal friction pack and octagonal friction pack.
As shown in fig. 1 and 2, the steel back 1 comprises two back plates which are in mirror symmetry, a dovetail groove 2 is formed in one side of each back plate, which is far away from the braking surface, and the dovetail groove 2 not only facilitates connection of the steel back 1 and a braking device, but also increases overall strength. The steel backing 1 is divided into a first supporting part 3 and two second supporting parts 4, the first supporting part 3 is located in the middle of the steel backing 1 and is of a fan-shaped structure with the same width, the two second supporting parts 4 are located on the left side and the right side of the steel backing 1, and the width of the second supporting parts 4 is gradually narrowed outwards by the first supporting part 3. Have on the steel backing 1 be suitable for with connect hexagon friction group and octagon friction group's connecting hole 7, have on the braking face of steel backing 1 with the coaxial first recess 5 that sets up of connecting hole 7, the steel backing 1 deviate from one side of braking face have with the coaxial second recess 6 of connecting hole 7.
As shown in fig. 3 and 4, an octagonal friction set is connected to the braking surface of the first supporting part 3, the octagonal friction set includes a plurality of second friction blocks 8, and the second friction blocks 8 are in an octagonal structure; the second friction blocks 8 are provided with four groups which are sequentially distributed in parallel from left to right, and the four groups of second friction blocks 8 are distributed along an arc line from left to right; each group is provided with three second friction blocks 8 which are sequentially distributed from top to bottom, and the edges between the upper adjacent second friction blocks 8 and the lower adjacent second friction blocks are opposite; gaps are reserved between the upper and lower adjacent second friction blocks 8, so that heat dissipation and smooth discharge of abrasive dust are facilitated; and a space is reserved between the left and right adjacent second friction blocks 8, so that the collision and abrasion of the adjacent second friction blocks 8 caused by the inclination of the second friction blocks 8 are avoided.
As shown in fig. 3 and 4, a hexagonal friction set is connected to the braking surface of the second support part 4, and the hexagonal friction set comprises three first friction blocks 9; the first friction blocks 9 are in a regular hexagon structure, and three first friction blocks 9 are adjacent to each other in a honeycomb manner. The first friction block 9 is positioned at the rightmost side of the steel backing 1, and the vertex angle of the first friction block is opposite to the rightmost side edge; the first friction block 9 is positioned at the leftmost side of the steel back 1, and the vertex angle of the first friction block is opposite to the leftmost edge; the narrowest region on the braking surface of the second support 4 is fully utilized, increasing the effective friction area. A gap is reserved between every two adjacent first friction blocks 9, so that heat dissipation and smooth discharge of abrasive dust are facilitated; and a space is reserved between the hexagonal friction group and the octagonal friction group, so that the first friction block 9 is prevented from being collided and abraded when inclined, and the adjacent second friction block 8 is prevented from being collided and abraded.
As shown in fig. 5 and 6, the first friction block 9 or the second friction block 8 has a uniform structure, and includes: a friction body 10, a friction seat 11 and a positioning pin 12; taking the first friction block 9 as an example, the following description is made: the friction seat 11 is connected with one side of the friction body 10 facing the steel back 1; two positioning protrusions 13 are arranged on one side of the friction body 10 facing the friction seat 11, two through positioning holes 14 are formed in the friction seat 11, and the positioning protrusions 13 can extend into the positioning holes 14 one by one to realize positioning of the two; the middle position of one side of the friction seat 11 facing the friction body 10 is provided with a mounting groove, and the middle position of one side of the friction seat 11 facing away from the friction body 10 is provided with an arc-shaped flange 15; the arc-shaped flange 15 is provided with a through hole communicated with the mounting groove, one end of the positioning pin extends into the mounting groove through the through hole and is abutted to the friction body 10, and the positioning pin is in interference connection with the through hole.
As shown in fig. 7, the first friction block 9 and the second friction block 8 are connected with the steel backing 1 in a floating manner, and the connection structures are consistent; the connection structure of the first friction block 9 is specifically described as an example: the locating pin warp connecting hole 7 of steel backing 1 stretches into in the second recess 6, the locating pin 12 deviate from the one end of friction seat 11 is equipped with annular groove 18, and jump ring 16 cup joints on the annular groove 18, realize first clutch blocks 9 with the connection of steel backing 1. An elastic piece 17 is arranged between the friction seat 11 and the steel back 1, and the elastic piece 17 is a disc spring; the elastic piece 17 is located in the first groove 5, one end of the elastic piece is abutted to the first groove 5, the other end of the elastic piece is abutted to the arc-shaped flange 15 on the friction seat 11, and floating connection with the steel backing 1 is achieved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A powder metallurgy brake pad, comprising:
the steel back (1) is provided with a first supporting part (3) and a second supporting part (4) extending outwards from two sides of the first supporting part (3), the first supporting part (3) is of an equal-width structure, and the width of the second supporting part (4) is gradually narrowed outwards from the first supporting part (3);
the hexagonal friction groups are divided into two groups and are arranged on the braking surfaces of the two second supporting parts (4); each hexagonal friction group is provided with three first friction blocks (9), the first friction blocks (9) are in a regular hexagonal structure, and the three first friction blocks (9) are adjacent to each other in a honeycomb manner;
the octagonal friction group is provided with a plurality of second friction blocks (8) which are respectively arranged on the braking surface of the first supporting part (3), and the second friction blocks (8) are in an octagonal structure; the second friction blocks (8) are provided with a plurality of groups which are distributed in parallel from left to right, each group is provided with a plurality of second friction blocks (8), and the second friction blocks (8) are sequentially distributed in a side-to-side manner from top to bottom.
2. Powder metallurgy brake lining according to claim 1, characterized in that the hexagonal friction group has one of the first friction blocks (9) remote from the octagonal friction group, which first friction block (9) has a vertex angle towards the leftmost or rightmost edge of the steel backing (1).
3. Powder metallurgical brake lining according to claim 1, wherein the second pads (8) have four groups of three second pads (8) in each group, distributed in succession from left to right.
4. Powder metallurgical brake lining according to claim 1, characterized in that the first support (3) is of fan-shaped configuration, the second pads (8) being distributed in an arc from left to right.
5. Powder metallurgy brake lining according to claim 1, characterized in that a gap is reserved between two adjacent first friction blocks (9) and/or between two second friction blocks (8) adjacent above and below.
6. Powder metallurgy brake lining according to claim 1, characterized in that a space is reserved between the second friction blocks (8) adjacent to each other.
7. The powder metallurgy brake pad of claim 1, wherein a space is reserved between the hexagonal friction pack and the octagonal friction pack.
8. Powder metallurgical brake lining according to any one of claims 1-7, characterized in that the first friction block (9) or the second friction block (8) comprises:
a friction body (10);
the friction seat (11) is connected to one side, facing the steel back (1), of the friction body (10), an installation groove is formed in one side, facing the friction body (10), of the friction seat (11), and a through hole communicated with the installation groove is formed in one side, facing away from the friction body (10), of the friction seat (11);
one end of the positioning pin extends into the mounting groove through the through hole and is abutted to the friction body (10), and the other end of the positioning pin is suitable for being connected with the steel back (1) in a floating mode.
9. Powder metallurgical brake lining according to claim 8, characterized in that an elastic element (17) is arranged between the friction seat (11) and the steel backing (1).
10. The powder metallurgy brake pad of claim 8, further comprising:
the positioning bulges (13) are at least two and are respectively arranged on one side of the friction body (10) facing the friction seat (11);
the positioning holes (14) are formed in the friction seat (11), the positioning holes (14) are in one-to-one correspondence with the positioning protrusions (13), and the positioning protrusions (13) are suitable for extending into the positioning holes (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022424180.XU CN213711709U (en) | 2020-10-27 | 2020-10-27 | Powder metallurgy brake lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022424180.XU CN213711709U (en) | 2020-10-27 | 2020-10-27 | Powder metallurgy brake lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213711709U true CN213711709U (en) | 2021-07-16 |
Family
ID=76801063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022424180.XU Active CN213711709U (en) | 2020-10-27 | 2020-10-27 | Powder metallurgy brake lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213711709U (en) |
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2020
- 2020-10-27 CN CN202022424180.XU patent/CN213711709U/en active Active
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