CN104912968A - Disc brake pad for railway vehicle - Google Patents
Disc brake pad for railway vehicle Download PDFInfo
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- CN104912968A CN104912968A CN201510269316.5A CN201510269316A CN104912968A CN 104912968 A CN104912968 A CN 104912968A CN 201510269316 A CN201510269316 A CN 201510269316A CN 104912968 A CN104912968 A CN 104912968A
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Abstract
The invention discloses a disc brake pad for a railway vehicle. The disc brake pad comprises a base plate and a plurality friction components installed on the base plate, each friction component comprises a back plate and friction blocks bonded to the back plate in a sintering mode, a connecting pin shaft is connected to the back plates of the friction components and is elastically connected to the base plate in a floating mode; a dual universal adjusting mechanism is arranged between each friction component and the base plate and comprises a universal tray with a first concave-convex part, the convex face and the concave face of each first concave-convex part are provided with a first convex spherical face and a first concave spherical face respectively, the base plate is provided with a second concave spherical face, the first convex spherical faces are matched with the second concave spherical face, second convex spherical faces are arranged on the back plates of the friction components, and the second convex spherical faces are matched with the first concave spherical faces. The disc brake pad has the advantages that abrasion is even, radiating is balanced, the braking performance is good, the service life is long, and production and manufacturing are easy.
Description
Technical field
The present invention relates to Vehicular brake device technical field, be specifically related to a kind of disc type brake brake lining used for rail vehicle.
Background technique
During high-speed train braking, stopping brake pincers promote rubbing surface that brake pad is fitted in brake disc rubs, and consume with this huge kinetic energy that bullet train produces.In braking process, the huge kinetic transformation of bullet train is heat energy, thus causes brake pad and brake disc to produce high temperature.Disc type brake brake lining, as the critical component of high-speed train braking, not only require that the brake pad of brake lining is wear-resisting, high temperature resistant, low noise, and brake pad self structure will have good heat-conductive characteristic and heat dispersion; Rubbing surface is fitted and is wanted balanced and fitting area is maximized simultaneously, guarantees that friction material wearing and tearing are consistent, generates heat evenly, avoid occurring the problem such as hot crack, localized hyperthermia, ensure working life and the braking effect of brake pad.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiency that prior art exists, and provides a kind of even wearing, heat radiation is balanced, braking ability is good, long service life, is easy to the disc type brake brake lining used for rail vehicle manufactured.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of disc type brake brake lining used for rail vehicle, comprise substrate and be installed in the multiple friction means on substrate, each friction means comprises backboard and the brake pad of sintering adhesive bonding on backboard, the backboard of each friction means is connected with connection bearing pin, described connection bearing pin elastic floating is connected on substrate, dual universal regulating mechanism is equipped with between each friction means and substrate, described dual universal regulating mechanism comprises the universal pallet with the first jog, the convex-concave two sides of described first jog is respectively equipped with the first convex spherical and the first concave spherical surface, described substrate is provided with the second concave spherical surface, described first convex spherical matches with the second concave spherical surface, the backboard of described friction means is provided with the second convex spherical, described second convex spherical matches with the first concave spherical surface.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, is provided with cavity between the bottom of described first concave spherical surface and the second convex spherical.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, described universal pallet is provided with the first through hole running through the first jog, described backboard is provided with the second jog and runs through the second through hole of the second jog, described second convex spherical is located on the convex surface of the second jog, described connection bearing pin is arranged in the through hole of the second through hole, the first through hole and substrate, and the one end connecting bearing pin is provided with the spacing head of the recessed portion being arranged in the second jog, the other end connecting bearing pin is connected with substrate elastic floating by clamp button of the spring.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, two flexible clamping portions that described clamp button of the spring comprises leg section and is connected with leg section, described leg section and substrate offset, two flexible clamping portions are arranged in two draw-in grooves of connection bearing pin both sides respectively, and described leg section leaves spacing with two flexible clamping portions on the axial direction being connected bearing pin.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, each clamp button of the spring is installed in the counterbore of substrate.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, described substrate is half ring-like, one side opposing with friction means on described substrate is provided with groove, two positioning pin holes, two L-type block reinforcements and multiple heat dissipation ventilation holes, described groove is arranged along the symmetrical line of substrate, the bottom of groove is provided with the through hole of through substrate, and the both sides that two L-type block reinforcements are divided into substrate form a T-slot.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, the surface of described universal pallet is coated with antiseptic and rustproof coating and lubrication coating successively.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, described backboard is provided with the circumferential limit structure preventing brake pad along the movement of backboard end face.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, described circumferential limit structure is the annular boss with brake pad surrounding close contact.
Above-mentioned disc type brake brake lining used for rail vehicle, preferably, described brake pad offers interlaced arrangement and the radial groove be interconnected and peripheral groove.
Compared with prior art, the invention has the advantages that: in disc type brake brake lining used for rail vehicle of the present invention, each friction means adopts dual universal regulating mechanism to be contained on substrate, each friction means all can be independent carry out dual universal adjustment, and then each brake pad can both balanced entirely be fitted on the rubbing surface of brake disc, make brake pad uniform scratch braking when maximum friction area, not only ensure that good braking ability, and the even wearing of brake pad, heat radiation is balanced, thermal stress can be avoided, the malicious influences of hot crack, improve the working life of brake pad, meanwhile, the structure of universal pallet is simple, easy to process, versatility and interchangeability high, can cost of production be reduced.The stability of this disc type brake brake lining equal energy retention under various severe Environmental Conditions.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the present invention's disc type brake used for rail vehicle brake lining.
Fig. 2 is the backsight structural representation of the present invention's disc type brake brake lining used for rail vehicle.
Fig. 3 is the broken section structural representation that in the present invention, friction means is connected with substrate.
Fig. 4 is the sectional structure schematic diagram of universal pallet in the present invention.
Fig. 5 is the sectional structure schematic diagram of substrate in the present invention.
Fig. 6 is a kind of main TV structure schematic diagram being provided with the friction means of annular boss.
Fig. 7 is a kind of sectional structure schematic diagram being provided with the friction means of annular boss.
Fig. 8 is a kind of structural representation being provided with the brake pad of radial groove and peripheral groove.
Marginal data:
1, substrate; 11, the second concave spherical surface; 12, counterbore; 13, groove; 14, positioning pin hole; 15, L-type block reinforcement; 16, heat dissipation ventilation hole; 2, backboard; 21, the second convex spherical; 22, the second through hole; 23, annular boss; 3, brake pad; 31, radial groove; 32, peripheral groove; 4, bearing pin is connected; 41, spacing head; 5, universal pallet; 51, the first jog; 511, the first convex spherical; 512, the first concave spherical surface; 513, shrinkage pool; 52, the first through hole; 53, cavity; 6, clamp button of the spring; 61, leg section; 62, flexible clamping portion.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1 to Figure 3, disc type brake brake lining used for rail vehicle of the present invention, the multiple friction means comprising substrate 1 and be installed on substrate 1, each friction means comprises backboard 2 and the brake pad 3 of sintering adhesive bonding on backboard 2, the backboard 2 of each friction means is connected with a connection bearing pin 4, connecting bearing pin 4 elasticity is connected on substrate 1, dual universal regulating mechanism is equipped with between each friction means and substrate 1, dual universal regulating mechanism comprises the universal pallet 5 with the first jog 51, the convex surface of the first jog 51 is provided with the first convex spherical 511, recessed two are provided with the first concave spherical surface 512, substrate 1 is provided with the second concave spherical surface 11, first convex spherical 511 matches with the second concave spherical surface 11, the backboard 2 of friction means is provided with the second convex spherical 21, second convex spherical 21 matches with the first concave spherical surface 512.Friction means can relative to the universal self-regulating of universal pallet 5 under coordinate of the first convex spherical 511 with the second concave spherical surface 11, universal pallet 5 relative to the universal self-regulating of substrate 1, thus can realize the dual universal adjustment of friction means under the cooperation of the second convex spherical 21 with the first concave spherical surface 512.
In the present embodiment, universal pallet 5 is provided with the first through hole 52 running through the first jog 51, backboard 2 is provided with the second jog and runs through the second through hole 22 of the second jog, second convex spherical 21 is located on the convex surface of the second jog, connecting bearing pin 4 is arranged in the through hole of the second through hole 22, first through hole 52 and substrate 1, and the one end connecting bearing pin 4 is provided with the spacing head 41 of the recessed portion being arranged in the second jog, the other end connecting bearing pin 4 is connected with the clamp button of the spring 6 offseted with substrate 1.
Two flexible clamping portions 62 that clamp button of the spring 6 comprises leg section 61 and is connected with leg section 61, it can adopt wire to be bent into, leg section 61 and substrate 1 offset, two flexible clamping portions 62 are arranged in two draw-in grooves of connection bearing pin 4 both sides respectively, leg section 61 leaves spacing with two flexible clamping portions 62 on the axial direction being connected bearing pin 4, thus makes connection bearing pin 4 can elastic floating vertically.On substrate 1, corresponding each clamp button of the spring 6 is respectively equipped with a counterbore 12, and each clamp button of the spring 6 is installed in corresponding counterbore 12, does not exceed the surface of substrate 1, can not disturb the assembling of brake pad.
In the present embodiment, as shown in Figure 3 and Figure 4, cavity 53 is provided with between the bottom of the first concave spherical surface 512 and the second convex spherical 21, particular by the bottom at the first concave spherical surface 512, one shrinkage pool 513 is set, namely second convex spherical 21 and the first concave spherical surface 512 form this cavity 53 after fitting, this cavity 53 can reduce the heat that friction means transmits to universal pallet 5, strengthen the air circulation between friction means and universal pallet 5 simultaneously, thus a large amount of heats can be taken away, be beneficial to the radiating and cooling of friction means and universal pallet 5.
In the present embodiment, friction means is Heptagon, and the friction means of same shape only needs to adopt one set of die and plastic, is beneficial to improve work efficiency, cut down finished cost, and simultaneously also conveniently installs.Heptagonal friction means arrangement can also increase the friction area of brake pad on substrate 1, load suffered by unit area is reduced, has better braking effect, and can improve the life-span of friction means.In other embodiments, the shape of friction means also can be the shape such as triangle, quadrilateral.
In the present embodiment, the surface of universal pallet 5 is coated with antiseptic and rustproof coating (internal layer) and lubrication coating (skin) successively, antiseptic and rustproof coating can prevent the corrosion of universal pallet 5, avoid the performance affecting brake pad, and lubrication coating can improve the adjustment campaign smoothness of friction means and universal pallet 5, reduce noise, this lubrication coating preferred dry powder lubricant simultaneously.
In the present embodiment, the first jog 51 surrounding of universal pallet 5 is slab construction, the end face of this slab construction and substrate 1 and and the end face of backboard 2 between all deposit certain gap, to realize adjusting in several angle.This universal pallet 5 can complete sharp processing by Vehicle Processing and punching two procedures, and its manufacturing procedure is simple, efficiency is high, processing cost is low.
In the present embodiment, substrate 1 is ring-like in half, one side opposing with friction means on substrate 1 is provided with groove 13, two positioning pin holes 14, article two, L-type block reinforcement 15 and multiple heat dissipation ventilation hole 16, wherein, as shown in Figure 5, article two, the both sides that L-type block reinforcement 15 is divided into substrate 1 form a T-slot, insert locating stud when two positioning pin holes 14 are for installing brake pad to position, when brake pad is installed on brake lining clamping plate, brake pad along the direction sliding sleeve of T-slot on brake lining clamping plate, brake lining clamping plate and T-slot adopt small―gap suture to coordinate, locating stud is inserted again in two positioning pin holes 14, by the position-limiting action of T-slot and locating stud, brake pad is fixed, this kind of mounting type is easy and simple to handle, convenient disassembly is quick, maintenance time can greatly be shortened, reduce the working strength of maintenance man, improve maintenance efficiency.The flowing of air can be strengthened in heat dissipation ventilation hole 16, thus takes away the heat produced in brake pad braking process, significantly improves the heat dispersion of brake pad.Groove 13 is arranged along the symmetrical line of substrate 1, the bottom of groove 13 is provided with the through hole running through substrate 1, this structure is conducive to the heat radiation of substrate 1 symmetry axis position, the temperature of this position can be reduced, the rigidity of substrate 1 symmetry axis position can also be reduced simultaneously, being conducive to substrate 1 producing resiliently deformable by during clamping force effect, promoting that brake pad effectively fits in brake disc.Meanwhile, half ring-like substrate 1 is axially symmetric structure, can meet the installation of left and light brake clamping plate on chip simultaneously, make brake pad have very high versatility.
In the present embodiment, backboard 2 is connected plane with the concordant formation one of the end face of spacing head 41, and brake pad 3 sintering adhesive bonding is in this connection plane.
Further, the circumferential limit structure preventing brake pad 3 along the movement of backboard 2 end face also can be provided with on backboard 2.Circumference limit structure is the annular boss 23 with brake pad 3 surrounding close contact, backboard 2 and annular boss 23 form a bowl structure, brake pad 3 is sintered in bowl, the annular boss 23 of surrounding forms barrier effect, effectively can increase the shearing strength of brake pad 3, the brake pad 3 sintering out than prior art is more solid and reliable, simultaneously when sintering, the pressed compact of friction material can directly be positioned in bowl, the annular boss 23 of surrounding forms positioning action, when reducing sintering, the difficulty of work put by pressed compact, decrease the loss in man-hour of assembling and positioning, thus can enhance productivity, reduce workload and cost of production.Fig. 6 and Fig. 7 shows the friction means that a kind of backboard 2 is provided with annular boss 23, and the structure of this friction means is different from the structure of friction means in the present embodiment, only as the one reference of annular boss 23 shape and set-up mode.
Backboard 2 and annular boss 23 are stamping forming integral piece, when making, adopt the plain plate of designing shape directly to stamp out annular boss 23, easy to make, cost is low, be beneficial to batch production.Angle between annular boss 23 and backboard 2 is 70 ° ~ 110 °, the height of annular boss 23 is 1mm ~ 5mm, pass through analysis of experiments, annular boss 23 is too high likely causes rub steel bowl and antithesis steel disk after certain degree of friction material rub and injure steel disk, the raising of the too low then anti-shearing force of annular boss 23 is lower, can comprehensively solve the problem when the height of annular boss 23 is 1mm ~ 5mm.The profile of annular boss 23 is determined according to the shape of brake pad 3 pressed compact, ensures that the shape of annular boss 23 is consistent with the shape of brake pad 3.
Further, also interlaced arrangement can be offered on brake pad 3 and the radial groove 31 be interconnected and peripheral groove 32.Radial groove 31 and peripheral groove 32 are arranged to latticed (formation grid groove) on brake pad 3; during braking, air-flow enters peripheral groove 32 and flows in the radial groove 31 be interconnected and peripheral groove 32; fricative heat between brake disc and brake pad can be taken away; its good heat dissipation effect; significantly can reduce brake temperature; thus improve the stability of braking system and improve the durability of brake material; simultaneously; abrasive dust in radial groove 31 and peripheral groove 32 and foreign material can also blow away by the air flowed in braking process, play the effect of protection brake disc.Fig. 8 shows a kind of brake pad 3 offering radial groove 31 and peripheral groove 32, and this brake pad 3 is different from the brake pad 3 in the present embodiment, only as the one reference of radial groove 31 and peripheral groove 32 arrangement.
Above-mentioned each brake pad 3 offers respectively three radial grooves 31 and a peripheral groove 32, peripheral groove 32 is by each radial groove 31 decile.Peripheral groove 32 is curve bath, and curve bath is arranged along the slewing circle circumferential direction of brake disc, and in other embodiments, radial groove 31 and peripheral groove 32 also can be other quantity, and peripheral groove 32 also can be the groove of other setting types such as straight trough.
By conducting in-depth research the width of grid groove and the degree of depth, if the width of groove is less than 2mm, air is difficult to enter grid groove and forms air flow, if the width of groove is greater than 20mm, then effectively friction area is too small.If the degree of depth of groove is less than effective friction thickness of brake pad 3, then can not ensure the passage having ventilation and heat in effective friction thickness range, there is the phenomenon of local superheating thus affect the durability of brake pad and braking.The radial groove 31 of the present embodiment and the width of peripheral groove 32 are 2mm ~ 20mm, the thickness of effective friction thickness≤radial groove 31 of brake pad 3 and the degree of depth≤brake pad 3 of peripheral groove 32, can when not affecting brake lining braking ability, in the whole using process of brake lining, all effectively can carry out ventilation and heat, avoid Yin Wendu too high and the various problems caused.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment.For those skilled in the art, do not departing from the improvement that obtains under the technology of the present invention concept thereof and conversion also should be considered as protection scope of the present invention.
Claims (10)
1. a disc type brake brake lining used for rail vehicle, the multiple friction means comprising substrate (1) and be installed on substrate (1), each friction means comprises backboard (2) and the brake pad (3) of sintering adhesive bonding on backboard (2), it is characterized in that: the backboard (2) of each friction means is connected with and connects bearing pin (4), described connection bearing pin (4) elastic floating is connected on substrate (1), dual universal regulating mechanism is equipped with between each friction means and substrate (1), described dual universal regulating mechanism comprises the universal pallet (5) with the first jog (51), the convex-concave two sides of described first jog (51) is respectively equipped with the first convex spherical (511) and the first concave spherical surface (512), described substrate (1) is provided with the second concave spherical surface (11), described first convex spherical (511) is matched with the second concave spherical surface (11), the backboard (2) of described friction means is provided with the second convex spherical (21), described second convex spherical (21) is matched with the first concave spherical surface (512).
2. disc type brake brake lining used for rail vehicle according to claim 1, is characterized in that: be provided with cavity (53) between the bottom of described first concave spherical surface (512) and the second convex spherical (21).
3. disc type brake brake lining used for rail vehicle according to claim 1, it is characterized in that: described universal pallet (5) is provided with the first through hole (52) running through the first jog (51), described backboard (2) is provided with the second jog and runs through second through hole (22) of the second jog, described second convex spherical (21) is located on the convex surface of the second jog, described connection bearing pin (4) is arranged in the second through hole (22), in the through hole of the first through hole (52) and substrate (1), and the one end connecting bearing pin (4) is provided with the spacing head (41) of the recessed portion being arranged in the second jog, the other end connecting bearing pin (4) is connected with substrate (1) elastic floating by clamp button of the spring (6).
4. disc type brake brake lining used for rail vehicle according to claim 3, it is characterized in that: two flexible clamping portions (62) that described clamp button of the spring (6) comprises leg section (61) and is connected with leg section (61), described leg section (61) and substrate (1) offset, two flexible clamping portions (62) are arranged in two draw-in grooves of connection bearing pin (4) both sides respectively, and described leg section (61) leaves spacing with two flexible clamping portions (62) on the axial direction being connected bearing pin (4).
5. disc type brake brake lining used for rail vehicle according to claim 3, is characterized in that: each clamp button of the spring (6) is installed in the counterbore (12) of substrate (1).
6. disc type brake brake lining used for rail vehicle according to any one of claim 1 to 5, it is characterized in that: described substrate (1) is ring-like in half, the one side that described substrate (1) is upper and friction means is opposing is provided with groove (13), two positioning pin holes (14), two L-type block reinforcements (15) and multiple heat dissipation ventilation holes (16), described groove (13) is arranged along the symmetrical line of substrate (1), the bottom of groove (13) is provided with the through hole of through substrate (1), and the both sides that two L-type block reinforcements (15) are divided into substrate (1) form a T-slot.
7. disc type brake brake lining used for rail vehicle according to any one of claim 1 to 5, is characterized in that: the surface of described universal pallet (5) is coated with antiseptic and rustproof coating and lubrication coating successively.
8. disc type brake brake lining used for rail vehicle according to claim 1, is characterized in that: described backboard (2) is provided with the circumferential limit structure preventing brake pad (3) along backboard (2) end face movement.
9. disc type brake brake lining used for rail vehicle according to claim 8, is characterized in that: described circumferential limit structure is the annular boss (23) with brake pad (3) surrounding close contact.
10. disc type brake brake lining used for rail vehicle according to claim 1, is characterized in that: described brake pad (3) offers interlaced arrangement and the radial groove be interconnected (31) and peripheral groove (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269316.5A CN104912968A (en) | 2015-05-25 | 2015-05-25 | Disc brake pad for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269316.5A CN104912968A (en) | 2015-05-25 | 2015-05-25 | Disc brake pad for railway vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN104912968A true CN104912968A (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269316.5A Pending CN104912968A (en) | 2015-05-25 | 2015-05-25 | Disc brake pad for railway vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN104912968A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763330A (en) * | 2016-12-26 | 2017-05-31 | 常州中车铁马科技实业有限公司 | Train brake plate |
| CN107023594A (en) * | 2015-11-06 | 2017-08-08 | 米巴摩擦技术有限公司 | Lining retainer plate |
| CN107989931A (en) * | 2016-10-27 | 2018-05-04 | 克诺尔轨道车辆***有限公司 | Brake pad and rail vehicle |
| CN108006111A (en) * | 2017-12-28 | 2018-05-08 | 天津中嘉盛君精密机械有限公司 | A kind of fixed support plate |
| IT201900006094A1 (en) * | 2019-04-18 | 2020-10-18 | Cofren Srl | PAD FOR DISC BRAKES FOR RAILWAY VEHICLES |
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| CN204784324U (en) * | 2015-05-25 | 2015-11-18 | 湖南博科瑞新材料有限责任公司 | Disc brake brake lining for rail vehicle |
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| CN1997838A (en) * | 2004-07-01 | 2007-07-11 | 克诺尔-布里姆斯轨道车辆***有限公司 | Brake lining for a disk brake of a vehicle, particularly a rail vehicle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023594A (en) * | 2015-11-06 | 2017-08-08 | 米巴摩擦技术有限公司 | Lining retainer plate |
| CN107989931A (en) * | 2016-10-27 | 2018-05-04 | 克诺尔轨道车辆***有限公司 | Brake pad and rail vehicle |
| CN106763330A (en) * | 2016-12-26 | 2017-05-31 | 常州中车铁马科技实业有限公司 | Train brake plate |
| CN106763330B (en) * | 2016-12-26 | 2019-08-23 | 常州中车铁马科技实业有限公司 | Train brake plate |
| CN108006111A (en) * | 2017-12-28 | 2018-05-08 | 天津中嘉盛君精密机械有限公司 | A kind of fixed support plate |
| IT201900006094A1 (en) * | 2019-04-18 | 2020-10-18 | Cofren Srl | PAD FOR DISC BRAKES FOR RAILWAY VEHICLES |
| EP3726088A1 (en) * | 2019-04-18 | 2020-10-21 | Cofren S.r.L. | Pad for disc brakes for railway vehicles |
| US11248670B2 (en) | 2019-04-18 | 2022-02-15 | Cofren S.R.L. | Pad for disc brakes |
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Application publication date: 20150916 |
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