CN209539875U - A kind of train brake pad - Google Patents
A kind of train brake pad Download PDFInfo
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- CN209539875U CN209539875U CN201821642575.3U CN201821642575U CN209539875U CN 209539875 U CN209539875 U CN 209539875U CN 201821642575 U CN201821642575 U CN 201821642575U CN 209539875 U CN209539875 U CN 209539875U
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- friction
- steel back
- friction particles
- locking pin
- disk spring
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Abstract
The utility model discloses a kind of train brake pads, including the universal steel back of dovetail, the front of steel back is equipped with multiple disk spring slots, the position that the back side of steel back corresponds to disk spring slot is equipped with dish-shaped jump-ring slot, disk spring groove center opens up positioning socket bore, a friction particles are housed in each positioning socket bore, the center of friction particles is equipped with a locking pin, locking pin is extend into corresponding positioning socket bore after passing through disk spring, is stuck in clamping in the annular groove of locking pin end with butterfly circlip later.Optimization is designed to brake pad steel back shape and friction particles distribution, increases the gap between brake lining inner edge friction material forced area and brake lining inner edge friction particles, guarantees that heat can quickly scatter and disappear, reduces the heat localization of brake lining, reduces the abrasion of brake lining inner edge.
Description
Technical field
The utility model relates to a kind of disc braking technology more particularly to a kind of train brake pads.
Background technique
It is ground currently, the case where brake lining eccentric wear, especially brake lining inner edge easily occurs in braking process in train brake pad
Consumption is serious, and the brake lining inner edge service life, outer rim still had 3mm or more to limit away from abrasion in limited time, leads to the reduction of brake lining service life, generates
Serious waste.Main reason is that two aspects:
First, brake clamp is when applying thrust to brake lining, brake lining inner edge unit area thrust is big；
Second, brake lining is to guarantee that the unit area braking energy of differentiated friction radius is identical, and ignore in the design process
The difference of outer rim radiating condition in brake lining.When braking, brake lining inner edge brake pressure is big, and heat production is more, heat dissipation is slow, friction material material temperature
Degree is high, causes the abrasion of brake lining inner edge serious.
Utility model content
The purpose of the utility model is to provide a kind of train brake pads.
The purpose of this utility model is achieved through the following technical solutions:
The train brake pad of the utility model, including the universal steel back of dovetail, the front of the steel back are equipped with multiple
Disk spring slot, the position that the back side of the steel back corresponds to disk spring slot are equipped with dish-shaped jump-ring slot, and disk spring groove center is opened
Position socket bore is set, a friction particles are housed in each positioning socket bore, the center of the friction particles is equipped with a locking pin, institute
It states locking pin to extend into after disk spring in corresponding positioning socket bore, is stuck in the locking pin end with butterfly circlip later
Clamping in the annular groove in portion.
The train system provided by the embodiment of the utility model it can be seen from above-mentioned technical solution provided by the utility model
Dynamic brake lining is designed optimization to brake pad steel back shape and friction particles distribution, increases brake lining inner edge friction material stress
Gap between area and brake lining inner edge friction particles guarantees that heat can quickly scatter and disappear, reduces the heat localization of brake lining, reduces lock
The abrasion of piece inner edge.
Detailed description of the invention
Fig. 1 a, Fig. 1 b are respectively that the front and back structure of train brake pad provided by the embodiment of the utility model is shown
It is intended to；
Fig. 2 a, Fig. 2 b are respectively the front and back structure of the universal steel back one of dovetail in the utility model embodiment
Schematic diagram；
Fig. 3 is the structural schematic diagram of the disk spring in the utility model embodiment；
Fig. 4 a, Fig. 4 b are respectively the structural schematic diagram of the friction particles and its locking pin in the utility model embodiment；
Fig. 5 is the structural schematic diagram of the backboard in the utility model embodiment；
Fig. 6 is the structural schematic diagram of the butterfly circlip in the utility model embodiment.
In figure:
The universal steel back 11 of dovetail, friction particles 12, disk spring 13, butterfly circlip 14, anti-rotation boss 15；
Disk spring slot 21, positioning socket bore 22；
The spherical surface 31 of disk spring；
Locking pin 41, annular groove 42, the spherical surface 43 of friction particles, backboard 45, friction piece 46, through-hole 47, boss 48；
Connection sheet 51；
Open end 61, round clasp 62, round clasp exit passageway 63.
Specific embodiment
The utility model embodiment will be described in further detail below.Do not make in the utility model embodiment in detail
The content of description belongs to the prior art well known to professional and technical personnel in the field.
The train brake pad of the utility model, preferable specific embodiment is:
Including the universal steel back of dovetail, the front of the steel back is equipped with multiple disk spring slots, the back side pair of the steel back
The position of disk spring slot is answered to be equipped with dish-shaped jump-ring slot, disk spring groove center opens up positioning socket bore, in each positioning socket bore
Equipped with a friction particles, the center of the friction particles is equipped with a locking pin, and the locking pin passes through extending back for disk spring
Enter into corresponding positioning socket bore, is stuck in clamping in the annular groove of the locking pin end with butterfly circlip later.
The universal steel back front of dovetail is plate surface, and the irregular pentagon that the back side connects an inverted trapezoidal dovetail is board-like
Structure, generally dovetail and steel back integrated metal machined piece.
The friction particles include backboard and friction piece, and several through-holes, the corresponding positions of friction piece are additionally provided on the backboard
It sets and is equipped with boss, connect backboard closely with friction piece with through-hole engagement by boss, the locking pin passes through connection sheet and institute
State backboard connection.
The friction piece is hexagonal structure, and the plate surface of the steel back is equipped with anti-rotation boss, each anti-rotation boss
With the edge mate of at least two friction pieces.
The butterfly circlip is rounded butterfly-like, and side is open end；
The inside of the butterfly circlip is equipped with a round clasp matched with the annular groove of the locking pin, circular card
The exit passageway of ring connects the open end.
Brake lining inner edge friction particles distributed quantity is more than outer rim friction particles distributed quantity, the total rubbing surface of inner edge friction particles
It is long-pending with friction radius square product be greater than the total friction area of outer rim friction particles and friction radius square product.
It is preferred that 10 friction particles are distributed in each brake pad, four column are lined up from brake lining inner edge to outer rim, each column is rubbed
It wipes particle distribution quantity and is followed successively by 3,3,2,2.
The train brake pad of the utility model optimizes steel back shape and friction particles distribution, can effectively adjust system
The brake pressure of brake lining friction particles during dynamic, guarantee is effectively bonded with brake disc, while increasing brake lining heat dissipation channel, uniformly
Change brake lining surface temperature, avoid the brake lining friction phenomenon in braking process, braking is stablized, long service life, and is had and facilitated peace
The characteristics of assembly and disassembly.
The brake pad has friction area big, and friction particles are evenly distributed, and gap is big, and heat dissipation channel is more, and braking is stablized,
Wear away uniform the features such as being easily installed disassembly.In braking process, brake lining uniformity of temperature profile, rapid heat dissipation can effectively avoid lock
The problems such as heat localization of piece, high temperature hot spot, the trench of the local anomaly abrasion and brake disc that reduce brake lining are worn away, train can be met
The demand of braking.
Specific embodiment:
As shown in Figure 1 a, 1 b, the universal steel back 11 of dovetail, N number of friction particles 12, N number of disk spring are specifically included that
13 with N number of butterfly circlip 14.
The universal steel back of dovetail is the irregular pentagon plank frame that back connects an inverted trapezoidal dovetail, be dovetail and
Steel back integrated metal machined piece；It is hollowed out in the middle part of dovetail, and is equipped with N number of butterfly jump-ring slot；As shown in Fig. 2 a, Fig. 2 b,
It is provided with N number of disk spring slot on the plate surface of the steel back, and opens up positioning socket bore 21 in its center, it is therein N number of
Dimple hole is located at butterfly circlip card slot center.
It will be understood by those skilled in the art that for the ease of expression in the structure as shown in Fig. 1 a, Fig. 1 b- Fig. 2 a, Fig. 2 b
To which N is set as 10, but the specific value of actually N can determine according to demand.
As shown in figure 3, each brake lining disk spring 13 is disc structure, spherical surface 31 is contacted with friction particles 12 upward
Cooperation.
As shown in Fig. 4 a, Fig. 4 b, each brake lining friction particles 12 are hexagonal structure, and center is equipped with a locking pin 41,
Length is greater than the sum of disk spring height and the thickness of steel back, and exceeds on part and be additionally provided with an annular groove 42, friction particles
Spherical surface 43 be engaged with disk spring 31.
Brake lining friction particles 12 are straggly to be distributed in the steel back 11, to reduce brake lining entirety in braking process because heated
The deflection of expansion；The disk spring 13 that the locking pin 41 of each brake lining friction particles 12 both passes through protrudes into corresponding in the steel back
It positions in socket bore, clamping is cooperated by the annular groove 42 and butterfly circlip 14 of locking pin.
Square of the brake lining friction particles 12 unit radius friction area and friction radius in 11 plane of steel back
Radially first increases and then decreases from inside to outside, guarantees the friction material unit area of the differentiated friction radius in braking process
On the brake pressure that bears of friction particles 12 it is certain, the temperature rise of the friction particles on unit area is consistent, and abrasion are close, avoids
The irregular wear of brake lining friction particles improves brake lining service life.
In the present embodiment, the locking pin 41 equipped with annular groove in brake lining friction particles 12 is mainly used to fix, to prevent
It only falls off from steel back 11, it also allows friction particles 12 can pass through dish using 41 position of locking pin as rotation center
Shape spring carries out appropriate rotary oscillation above the steel back, and the position of the locking pin 41 can guarantee in braking process, single
The torque relative to rotation center that plane product friction generates is cancelled out each other with the torque relative to disc centres.Separately
Friction particles 12 can be stretched under the pressure in train braking by the elasticity of disk spring 13 and butterfly circlip 14 in outer brake lining
Contracting, so that it reaches being bonded for maximum area with brake disk surface.
As shown in Fig. 4 a, Fig. 4 b, the brake lining friction particles 12 include: the consistent backboard 45 of shape and friction piece 46；Institute
It states and is additionally provided with several through-holes 47 on backboard 45, the corresponding position of friction piece 46 is equipped with boss 48, is nibbled by boss 48 and through-hole 47
Conjunction connect backboard 45 closely with friction piece 46；The backboard and friction piece that ensure that the drag friction particle are in high-speed friction system
It will not fall off during dynamic.12 plane 44 of friction particles cooperates with 11 boss of steel back or other 12 planes of friction particles, prevents from rubbing
Wipe transition rotation of the particle in braking process.
As shown in figure 5, the backboard 45 includes: locking pin 41 and a connecting piece 51.
In the present embodiment, the backboard and friction piece are the structure that smoothly transits of edge chamfer, ensure that friction particles
Friction piece edge will not be crushed and fall off because of edge stress concentration effect in high-speed friction braking process.
In the present embodiment, brake lining inner edge friction particles distribution increase, reduce inner edge friction particles in braking process by
Power is uneven, is conducive to brake lining rubbing surface even wear, reduces the generation of inner edge excessive abrasion.
In the present embodiment, wide arc gap is all had between the brake lining friction particles that are arranged in steel back, reduces that brake lining is whole to exist
Because of the deflection of expanded by heating in braking process, heat when being more convenient for braking is discharged in time.
As shown in fig. 6, the butterfly circlip 14 is rounded butterfly-like, side is open end 61；The butterfly circlip it is interior
Portion is equipped with a round clasp 62 matched with the groove of positioning pin, and round clasp exit passageway 63 connects the open end.
In braking process, automatic adjustment braking plane may be implemented by disk spring 13 and butterfly circlip 14, with system
Moving plate realizes being flat and fit for maximum area, carries out friction catch.
Above-mentioned train provided in this embodiment is big with brake pad friction area, and friction particles are evenly distributed, and gap is big, dissipates
The passage of heat is more, and braking is stablized, and wears away uniform the features such as being easily installed disassembly.In braking process, friction material temperature is uniform, dissipates
It is hot fast, it can effectively avoid the heat localization of brake lining, reduce the local anomaly abrasion of brake lining and the high temperature hot spot of brake disc, trench abrasion
The problems such as, can meet the needs of train disc braking.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (6)
1. a kind of train brake pad, which is characterized in that including the universal steel back of dovetail, the front of the steel back is equipped with multiple
Disk spring slot, the position that the back side of the steel back corresponds to disk spring slot are equipped with dish-shaped jump-ring slot, and disk spring groove center is opened
Position socket bore is set, a friction particles are housed in each positioning socket bore, the center of the friction particles is equipped with a locking pin, institute
It states locking pin to extend into after disk spring in corresponding positioning socket bore, is stuck in the locking pin end with butterfly circlip later
Clamping in the annular groove in portion；
The universal steel back front of dovetail is plate surface, and the back side connects the board-like knot of irregular pentagon of an inverted trapezoidal dovetail
Structure, generally dovetail and steel back integrated metal machined piece.
2. train brake pad according to claim 1, which is characterized in that the friction particles include backboard and friction
Body is additionally provided with several through-holes on the backboard, and the corresponding position of friction piece is equipped with boss, and being engaged by boss with through-hole makes backboard
It is closely connect with friction piece, the locking pin is connect by connection sheet with the backboard.
3. train brake pad according to claim 2, which is characterized in that the friction piece is hexagonal structure, institute
The plate surface for stating steel back is equipped with anti-rotation boss, the edge mate of each anti-rotation boss and at least two friction pieces.
4. train brake pad according to claim 1, which is characterized in that the butterfly circlip is rounded butterfly-like,
Side is open end；
The inside of the butterfly circlip is equipped with a round clasp matched with the annular groove of the locking pin, round clasp
Exit passageway connects the open end.
5. train brake pad according to any one of claims 1 to 4, which is characterized in that brake lining inner edge friction particles
Distributed quantity is more than outer rim friction particles distributed quantity, the total friction area of inner edge friction particles and friction radius square product
Greater than the total friction area of outer rim friction particles and friction radius square product.
6. train brake pad according to claim 5, which is characterized in that 10 frictions are distributed in each brake pad
Particle, four column are lined up from brake lining inner edge to outer rim, and the friction particles distributed quantity of each column is followed successively by 3,3,2,2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821642575.3U CN209539875U (en) | 2018-10-10 | 2018-10-10 | A kind of train brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821642575.3U CN209539875U (en) | 2018-10-10 | 2018-10-10 | A kind of train brake pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209539875U true CN209539875U (en) | 2019-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821642575.3U Active CN209539875U (en) | 2018-10-10 | 2018-10-10 | A kind of train brake pad |
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| CN (1) | CN209539875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307027A (en) * | 2018-10-10 | 2019-02-05 | 北京瑞斯福高新科技股份有限公司 | A kind of train brake pad |
-
2018
- 2018-10-10 CN CN201821642575.3U patent/CN209539875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307027A (en) * | 2018-10-10 | 2019-02-05 | 北京瑞斯福高新科技股份有限公司 | A kind of train brake pad |
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