WO2019109762A1 - Disque de frein et véhicule de véhicule de transport ferroviaire - Google Patents

Disque de frein et véhicule de véhicule de transport ferroviaire Download PDF

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Publication number
WO2019109762A1
WO2019109762A1 PCT/CN2018/113094 CN2018113094W WO2019109762A1 WO 2019109762 A1 WO2019109762 A1 WO 2019109762A1 CN 2018113094 W CN2018113094 W CN 2018113094W WO 2019109762 A1 WO2019109762 A1 WO 2019109762A1
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WO
WIPO (PCT)
Prior art keywords
hub
disk
rail transit
transit vehicle
spacer
Prior art date
Application number
PCT/CN2018/113094
Other languages
English (en)
Chinese (zh)
Inventor
金文伟
杜利清
黄彪
方明刚
钱坤才
王常川
冯昆
吴射章
潘勤涛
张海锋
张宁
Original Assignee
常州中车铁马科技实业有限公司
中车戚墅堰机车车辆工艺研究所有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201711295683.8A external-priority patent/CN109899421A/zh
Priority claimed from CN201721709805.9U external-priority patent/CN207777471U/zh
Priority claimed from CN201711295060.0A external-priority patent/CN109899419A/zh
Priority claimed from CN201721710410.0U external-priority patent/CN207777472U/zh
Priority claimed from CN201711295666.4A external-priority patent/CN109899420A/zh
Priority claimed from CN201721710600.2U external-priority patent/CN207777473U/zh
Application filed by 常州中车铁马科技实业有限公司, 中车戚墅堰机车车辆工艺研究所有限公司 filed Critical 常州中车铁马科技实业有限公司
Publication of WO2019109762A1 publication Critical patent/WO2019109762A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes

Definitions

  • the present invention relates to the field of rail transit technology, and in particular to a brake disc for a rail transit vehicle and a rail transit vehicle having the brake disc.
  • the brake disc brakes the friction surface of the brake disc through the brake disc during the train braking process to realize the train braking, thus ensuring safe and stable operation of the train.
  • the safe and reliable operation of trains plays an important role.
  • the brake disc is subjected to the braking torque applied by the brake disc, and the brake disc connecting member receives the braking torque transmitted from the disc through the disc surface, and therefore, the fastening performance of the brake disc connecting member and Reliability requirements are high.
  • the disc body will be radially outwardly expanded due to the thermal load.
  • the disc body, the spacer ring and the hub of the brake disc are only connected by bolts. Once the bolt connection fails, the braking torque cannot be transmitted, the bolt will directly bear the shearing force, and the bolt is damaged, which leads to the system. The reliability of the moving plate is reduced, which affects the safety of rail vehicles.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention provides a brake disc for a rail transit vehicle, which can effectively transmit a braking force after the first fastener fails, and has a good operational reliability.
  • the invention further proposes a rail transit vehicle.
  • a brake disk for a rail transit vehicle includes: a disk body, the disk body is provided with a hole in the disk body, and a plurality of disk body connecting claws extending toward the center are disposed on a peripheral wall of the hole in the disk body, the disk The body connecting claw is provided with a first disk body perforation; a hub, the hub includes a flange, the flange is provided with a plurality of hub key grooves, and the plurality of disc connecting claws and the plurality of the discs a hub key groove corresponding to a portion of each of the disk connecting claws received in the hub key groove, each of the hub hubs being provided with a hub through hole; a spacer ring, the spacer ring being located at the disk body a side of the connecting claw opposite to the hub keyway, the spacer ring is provided with a plurality of spacer ring perforations; a plurality of first fasteners, each of the first fasteners correspondingly passing through the disc A hub perforation
  • the brake disc for a rail transit vehicle when the vehicle is braked, that is, when the brake disc is in operation, if the first fastener connection fails, the axial force formed by the connection of the first fastener cannot be overcome. Braking force, the disk body will have a tendency to rotate circumferentially. At this time, the side wall of the disk connecting claw will be in contact with the side wall of the hub key groove. For example, the two side walls completely fit, so that it can be transmitted to the disk body. The braking force is transmitted to the hub, thereby ensuring reliable transmission of the braking force after the failure of the first fastener and ensuring the operational reliability of the brake disc.
  • FIG. 1 is a schematic structural view of a brake disc for a rail transit vehicle according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a schematic structural view of a hub
  • FIG. 4 is a schematic structural view of a spacer according to an embodiment of the present invention.
  • FIG. 5 is another schematic structural view of a brake disc for a rail transit vehicle according to an embodiment of the present invention (the disc body is a split type);
  • FIG. 6 is a partial schematic view of a brake disc for a rail transit vehicle according to an embodiment of the present invention.
  • Figure 7 is a front elevational view showing a brake disc for a rail transit vehicle according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural view of another spacer according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural view of still another spacer according to an embodiment of the present invention.
  • Figure 10 is a schematic structural view of still another spacer according to an embodiment of the present invention.
  • Figure 11 is a partial schematic view showing the mutual engagement of two curved portions in accordance with an embodiment of the present invention.
  • the disk connecting claw 12 in the priority document "201711295060.0” is given priority
  • the connection block in the right file “201711295683.8” is the same component, and is uniformly named as the disk connection claw 12, priority
  • the disk perforation in the file "201711295060.0” and the third perforation in the priority document "201711295683.8” are The same perforation is uniformly named as the first disc perforation 13 and the hub perforation 22 in the priority document "201711295060.0"
  • the fourth perforation in the priority document "201711295683.8” is the same perforation, and is uniformly named as the hub perforation 22, excellent
  • the pressure ring and the superior in the spacer 30 in the priority document "201711295060.0" and the priority document "201711295683.8” is the same
  • the term disc perforation in the priority document "201711295060.0” is unified into the first disc body perforation 13, tight
  • the firmware is unified into the first fastener 40;
  • the term first perforation in the priority document "201711295683.8” is unified into the second
  • the disk body through hole 141 and the connecting block are unified into the disk connecting claw 12, and the second through hole is unified into the third disk body through hole 121 and the third through hole.
  • a brake disk 100 for a rail transit vehicle according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
  • the brake disk 100 for a rail transit vehicle may include a disk body 10, a hub 20, a spacer 30, and a plurality of first fasteners 40.
  • the center of the disk body 10 is provided with a hole 11 in the disk, and the hole 11 in the disk is provided for a part of the hub 20 (for example, the hub body 23), and the hole 11 in the disk can facilitate the disk body.
  • 10 is fixedly coupled to the hub 20.
  • a plurality of centrally extending disk body connecting claws 12 are disposed on the peripheral wall of the inner hole 11 of the disk body.
  • the disk body connecting claws 12 are provided with first disk body through holes 13, and each of the disk body connecting claws 12 may be provided with a first disk.
  • the body through hole 13 and the disk connecting claw 12 can function as a cooperation with the hub 20.
  • the number of the disk connecting claws 12 is not limited. For example, the number of the disk connecting claws 12 may be nine.
  • the disk connecting claw 12 and the disk body 10 may be integrally formed.
  • the hub 20 includes a flange 24, and the flange 24 is provided with a plurality of hub key grooves 21, and the plurality of disc connecting claws 12 are in one-to-one correspondence with the plurality of hub key grooves 21, and each of the disc bodies A portion of the connecting claw 12 is housed in the hub keyway 21, and each of the hub key grooves 21 is provided with a hub through hole 22, and the number of corresponding hub through holes 22 in each of the hub key grooves 21 is one.
  • the spacer 30 is located on the side of the disk connecting claw 12 opposite to the hub key groove 21, in other words, the spacer 30 and the hub key groove 21 of the hub 20 are respectively located on both sides of the disk connecting claw 12, and are disposed on the spacer 30 There are a plurality of spacer perforations 31.
  • Each of the first fasteners 40 correspondingly passes through the hub bore 22, the first body bore 13 and the spacer bore 31 to secure the tray 10, the hub 20 and the spacer 30.
  • the first fastener 40 may include bolts and nuts that cooperate with each other, and the bolts are threadedly engaged with the nut after passing through the hub through hole 22, the first disk body through hole 13 and the spacer ring through hole 31.
  • the number of the first fastener 40, the hub through hole 22, the first disk body through hole 13 and the spacer ring through hole 31 may be identical, and may of course be adjusted according to actual conditions.
  • the rail vehicle is braking, that is, when the brake disc 100 is in operation
  • the connection of the first fastener 40 fails, the axial force formed by the connection of the first fastener 40 cannot overcome the braking force, and the disc body 10 will The tendency of the circumferential rotation is generated.
  • the side wall of the disk connecting claw 12 will come into contact with the side wall of the hub key groove 21, for example, the two side walls completely fit, so that the transfer to the disk body 10 can be performed.
  • the power is transmitted to the hub 20, so that the transmission of the braking force after the failure of the first fastener 40 can be achieved, and the brake disc 100 can be braked to ensure the operational reliability of the brake disc 100.
  • a plurality of spacer keyways 32 may be provided in the spacer 30, and another portion of the tray coupling jaws 12 is received within the spacer keyway 32.
  • Each spacer key groove 32 should be disposed in the axial direction corresponding to each of the hub key grooves 21.
  • the sum of the depths of the hub key groove 21 and the spacer key groove 32 is smaller than the thickness of the disk connecting claw 12.
  • a further portion of the disk connecting claw 12 is connected between a portion of the disk connecting claw 12 and another portion which is located outside the hub key groove 21 and the spacer key groove 32.
  • the sum of the depths of the hub keyway 21 and the spacer keyway 32 is equal to the thickness of the disk connecting claw 12. In this way, it is also ensured that both end faces of the disk connecting claw 12 are completely engaged with the hub key groove 21 and the spacer key groove 32, so that the fixing reliability between the disk body 10, the hub 20 and the spacer 30 can be improved, and thus The structural reliability of the brake disc 100 is improved.
  • the depth of the hub key groove 21 and the depth of the spacer key groove 32 may be the same.
  • the portion of the disk connecting claw 12 accommodated in the hub key groove 21 and the portion accommodated in the spacer key groove 32 have the same thickness, so that the overall symmetry of the brake disk 100 can be improved, thereby improving the structural reliability of the brake disk 100. .
  • the side wall of the hub key groove 21, the side wall of the spacer key groove 32, and the side wall of the disk connecting claw 12 extend in the radial direction, respectively, and the side wall of the hub key groove 21, the side wall of the spacer key groove 32, and the disk body are connected.
  • the side walls of the claws 12 extend in the same direction.
  • the radial expansion direction of the disk connecting claw 12 coincides with the extending direction of the side wall of the hub keyway 21 and the side wall of the spacer key groove 32, that is, the disk body 10 is along the disk.
  • the body connecting claw 12, the hub key groove 21 and the spacer key groove 32 slide radially outward without interfering with the hub 20 and the spacer 30, and the release of the radial expansion deformation is not restricted, so that the hub is not 20, the spacer 30 and bolts and other connectors produce additional stress.
  • the inside of the disk body 10 is provided with a heat dissipation structure.
  • the position circle diameter of the first disk body perforation 13 may be smaller than the position circle diameter of the hub hub perforation 22 and the position circle diameter of the spacer ring hole 31.
  • the center line of the first disk body through hole 13 is located at the hub through hole 22 of the hub 20, the spacer through hole 31 of the spacer 30, and the center line of the gasket perforation after the gasket 50 is assembled is closer to the center of the disk body 10.
  • the first disk body through hole 13 is expanded and deformed in the radial direction, so that the working center under the actual braking condition and the hub of the hub 20 are perforated. 22.
  • the center of the spacer ring 31 of the spacer 30 is closer, and the gap between the bolt portion and the hub through hole 22 and the spacer through hole 31 is larger, thereby further ensuring that the bolt portion is not subjected to shearing force. .
  • the first fasteners 40 can be respectively mated with the corresponding first disk body through holes 13, the hub through holes 22 and the spacer ring holes 31, and the first fastener can be ensured by structural design and dimensional tolerance design.
  • the side wall of the disk connecting claw 12, the side wall of the hub key groove 21 and the side wall of the spacer key groove 32 are fitted, and the rod portion and the hub through hole 22, the first disk body through hole 13 and the spacer ring
  • the perforation 31 is not in contact, and therefore, the braking force is not transmitted to the bolt, and the rod portion of the bolt is not subjected to the shearing force in the circumferential direction, so that the bolt connection can be effectively protected, and the reliability of the bolt connection can be improved.
  • the side faces of the disk connecting claws 12 are respectively provided with a certain amount of clearance fit with the hub key groove 21 and the spacer key groove 32. In this way, the assembly can be facilitated on the one hand, and the side wall of the tray connecting claw 12 can be facilitated to have a small clearance fit with the side wall of the hub keyway 21 and the side wall of the spacer keyway 32, so that the disk body 10 and the hub 20 can be realized.
  • the circumferential positioning is installed.
  • the minimum value of the gap between the first fastener 40 and the corresponding first disk body through hole 13, the hub through hole 22 and the spacer ring hole 31 is a
  • the disk body connecting claw 12 is respectively associated with the hub key groove 21 and
  • the maximum gap between the spacer key grooves 32 is b
  • a and b satisfy the relationship: a>b.
  • the gap minimum a may be a gap between the first fastener 40 and the first disk body through hole 13 , or may be a gap between the first fastener 40 and the hub through hole 22 , or It is the gap between the first fastener 40 and the spacer perforation 31.
  • the gap maximum value b may be a gap between the side wall of the disk connecting claw 12 and the side wall of the hub key groove 21, or may be a gap between the side wall of the disk connecting claw 12 and the side wall of the spacer key groove 32. .
  • the brake disc 100 satisfying the above relationship can ensure that the disc connecting claw 12 preferentially fits the side wall of the hub hub 21 and the side wall of the spacer key groove 32 after the first fastener 40 fails, which is better.
  • the first fastener 40 is guaranteed to be non-contact and unstressed.
  • each of the disk body connecting claws 12, each of the hub key grooves 21, and each of the spacer ring grooves 32 has a U shape.
  • the U shape can facilitate the radial extension of the side walls of the disk connecting claw 12, the hub key groove 21 and the spacer key groove 32, and can facilitate the mutual cooperation of the three, so that the assembly efficiency of the brake disk 100 can be improved.
  • the hub 20 may include a hub body 23 and a flange 24.
  • the hub keyway 21 is formed on the flange 24.
  • the hub body 23 is provided with a hub body limiting portion.
  • the ring 30 is provided with a spacer ring limiting portion, and the hub body limiting portion cooperates with the spacer ring limiting portion to perform circumferential and radial limiting, thereby achieving circumferential and radial directions of the spacer 30 and the hub 20 Positioning assembly.
  • the hub body limiting portion and the spacer ring limiting portion can be extended to the circumferential limit and the radial limit, and the hub body limiting portion and the spacer ring limiting portion can be better realized.
  • the positioning of the spacer 30 and the hub 20 can improve the assembly accuracy of the spacer through-hole 31 of the spacer 30 and the hub through-hole 22 of the hub 20, thereby improving the reliability of the bolt connection and ensuring coaxial assembly of the bolt.
  • the hub body limiting portion can be configured as an arcuate recess 25
  • the spacer ring retaining portion can be configured as a projection 33
  • the inner wall of the projection 33 can be curved.
  • the curved protrusions 33 and the curved grooves 25 are simple in arrangement and reliable in cooperation, and can effectively achieve circumferential and radial limit.
  • the hub body limiting portion may be plural, and the number of the hub body limiting portions may be smaller than the number of the hub hubs 21, and each hub body is limited in the radial direction.
  • the outer side of the seat portion corresponds to the hub hub slot 21.
  • the disk body 10 further includes: two friction plates 14 of the split type, a disk connecting claw 12 and a plurality of second fasteners 15, wherein the two friction plates 14 have the same structure.
  • the two friction plates 14 can also be locally adjusted according to actual conditions.
  • the two friction plates 14 are oppositely disposed, and the opposite direction is the axial direction. Moreover, a plurality of heat dissipation structures 16 are respectively fixed between the two friction plates 14, so that when the two friction plates 14 are subjected to a thermal load, the plurality of heat dissipation structures 16 can provide heat dissipation between the two friction plates 14, thereby reducing the heat dissipation.
  • the temperature of the disk body 10 can reduce the expansion of the disk body 10, thereby improving the structural reliability of the brake disk 100.
  • the friction plate 14 may be a forged friction plate 14 such that the quality of the friction plate 14 is better, so that the reliability of the brake disk 100 can be better improved. It should be noted that the friction plate 14 can also adopt other forming methods, such as casting molding, spray molding, powder metallurgy pressing molding, braid molding, and the like.
  • the two friction plates 14 are respectively provided with a plurality of second disk body through holes 141.
  • the plurality of disk body connecting claws 12 are further provided with a third disk body through hole 121, a plurality of second fasteners 15 and a plurality of second portions.
  • the disk body through hole 141 and the plurality of third disk body through holes 121 are in one-to-one correspondence to fix the two friction plates 14 and the plurality of disk body connecting claws 12.
  • the number of the plurality of disk connecting claws 12 and the plurality of second fasteners 15 can be adjusted according to actual conditions.
  • the brake disc 100 is a split type, and the split disc 100 is composed of at least two friction plates 14, a plurality of disc connecting claws 12, and a plurality of friction plates 14 and discs.
  • the body connecting claw is fixedly connected to the second fastener 15 .
  • the hub 20 is provided with a plurality of hub bores 22, and the plurality of first fasteners 40 are in one-to-one correspondence with the plurality of third tray bores 121 and the plurality of hub bores 22 to connect the plurality of tray connecting claws 12 and The hub 20 is fixed.
  • the disk connecting claw 12 can be fixed to the two friction plates 14 and the hub 20 through the second fastener 15 and the first fastener 40, respectively, so that the disk body 10 and the hub 20 can be connected together, and thus The overall structural reliability of the brake disc 100 is ensured.
  • the second fastener 15 and the first fastener 40 may each include a bolt and a nut that cooperate with each other, but the second fastener 15 and the first fastener 40 may be different types of fasteners, for example,
  • the bolt radial dimension of the second fastener 15 can be less than the bolt radial dimension of the first fastener 40.
  • the disc body 10 is composed of a plurality of components, and the disc body 10 is detachable, so that the disc body 10 is formed to have wider versatility, and the friction disc 14 can be single-cast or After the forging type is assembled, the drawbacks of the current disc body to be integrally casted are solved, so that the forging type method capable of ensuring the internal quality of the material can be used for the production of the disc body 10, and the performance of the brake disc 100 can be improved.
  • the plurality of disk body connecting claws 12 respectively extend toward the center of the disk body 10, and the plurality of disk body connecting claws 12 are evenly distributed circumferentially.
  • the disk connecting claw 12 can extend in the radial direction, which can facilitate its fixation with the hub 20, and can improve the reliability between the hub 20 and the disk 10.
  • the inner wall of the disk connecting claw 12 is annular, which is advantageous in that the inner wall of the disk connecting claw 12 is restrained from the outer wall of the hub 20.
  • the first limiting member 142 is disposed on the two friction plates 14
  • the second limiting member 161 is disposed on the heat dissipation structure 16
  • the second limiting member 161 is two.
  • the two second limiting members 161 are correspondingly matched with the first limiting members 142 on the two friction plates 14 in the axial direction.
  • the fixing reliability of the heat dissipation structure 16 between the two friction plates 14 can be improved by the cooperation of the first limiting member 142 and the second limiting member 161, and the contact area between the heat dissipation structure 16 and the two friction plates 14 can be increased. Therefore, the heat dissipation effect of the heat dissipation structure 16 can be further improved.
  • the first limiting member 142 may be one of a protrusion and a groove
  • the second limiting member 161 may be the other of the protrusion and the groove
  • the protrusion and the groove cooperate with each other.
  • the first limiting member 142 may be a protrusion.
  • the protrusion may be configured in a column shape, and the groove may also be cylindrical.
  • the grooves and projections are simple in design, easy to manufacture and reliable.
  • each of the heat dissipation structures 16 has a columnar shape with grooves at both ends. As shown in FIG. 5, the cross-sectional view of the heat dissipation structure 16 is H-shaped. Of course, the present invention is not limited thereto, and each of the heat dissipation structures 16 has a tapered shape with grooves at both ends. The heat dissipation structure 16 thus disposed is simple and reliable in structure.
  • the plurality of heat dissipation structures 16 are spaced apart in the circumferential and radial directions.
  • the plurality of heat dissipation structures 16 can effectively and uniformly remove the heat of the friction plates 14, and can improve the overall heat dissipation performance of the disk body 10.
  • the specific arrangement of the plurality of heat dissipation structures 16 is not limited.
  • the plurality of heat dissipation structures 16 may be in a regular arrangement. Of course, the plurality of heat dissipation structures 16 may also be in an irregular arrangement.
  • the plurality of heat dissipation structures 16 may constitute a heat dissipation structure inner ring group a and a heat dissipation structure outer ring group b, and a connection shape between the plurality of heat dissipation structures 16 of the heat dissipation structure inner ring group a and a heat dissipation structure outer ring group b
  • the line shapes between the plurality of heat dissipation structures 16 are respectively regular polygons or circles. As shown in FIG.
  • connection shape between the plurality of heat dissipation structures 16 of the inner ring group a of the heat dissipation structure and the connection shape between the plurality of heat dissipation structures 16 of the outer ring group b of the heat dissipation structure are respectively a regular hexagon.
  • the height of the heat dissipation structure 16 is the same as the height of the disk connecting claws 12.
  • the two friction plates 14 can be arranged in parallel with each other, so that the heat dissipation structure 16 and the disk connecting claws 12 can be more reliably fixed to the two friction plates 14, respectively.
  • each of the disk connecting claws 12 is provided with a plurality of first disk body through holes 13, and a plurality of first disk body through holes 13 extend in the width direction of the disk connecting claws 12.
  • the longitudinal direction of the disk connecting claw 12 is the radial direction of the brake disk 100, and the width direction of the disk connecting claw 12 may be a direction extending from the normal.
  • the number of the first disk body through holes 13 corresponding to each of the disk connecting claws 12 may be two, and the two first disk body through holes 13 correspond to the two second fasteners 15, so that two second tights are provided by The firmware 15 can further improve the structural reliability of the disk body 10.
  • the spacer 30 of the brake disc according to the embodiment of the present invention may include a plurality of curved portions 34, and the plurality of curved portions 34 are connected end to end to form a ring shape, in other words, a plurality of arcs.
  • the shape portion 34 can form the spacer 30 by sequentially connecting the ends, wherein the structure of each of the curved portions 34 can be the same, which can reduce the manufacturing difficulty of the spacer 30, and can make the spacer 30 easy to assemble.
  • Each of the curved portions 34 is provided with at least one hub through hole 22 through which the hub through hole 22 can pass, and the first fastener 40 can pass through the disk body 10 and the hub 20
  • the hub 24 and the hub bore 22 of the curved portion 34 secure the three together.
  • the first fastener 40 can include bolts and nuts that mate with one another.
  • the spacer 30 of the brake disc 100 is different from the conventional spacer.
  • the conventional spacer is generally of a unitary structure, and the spacer 30 of the present invention adopts a split structure through a plurality of
  • the curved portion 34 constitutes the spacer 30, so that when any one of the spacers 30 is damaged, only the curved portion 34 corresponding to the damaged portion can be replaced.
  • the first fastener 40 corresponding to the damaged portion is removed, and then the damaged curved portion 34 is removed, and the new curved portion 34 is replaced, so that the new curved portion 34 and other undamaged curved portions are formed.
  • the portion 34 reconstitutes the integral spacer 30, and the spacer 30 can continue to operate, thereby reducing the replacement cost and replacement difficulty of the spacer 30.
  • the first fastener 40 can function to effectively fix the curved portion 34, so that the spacer 30 can be further improved in braking. Installation reliability on the disc 100.
  • each curved portion 34 are respectively provided with a fitting tooth 35 and a fitting groove 36, and the front end of one curved portion 34 is fitted with the tooth 35 and the other end.
  • the fitting grooves 36 at the trailing ends of one of the curved portions 36 cooperate with each other.
  • the height of the fitting teeth 35 is smaller than the depth of the fitting groove 36 and equal to or larger than one third of the thickness of the curved portion 34.
  • the fitting teeth 35 thus disposed are matched with the fitting groove 36, and can be advantageously used to improve the fitting efficiency between the fitting teeth 35 and the fitting groove 36. In other words, it is advantageous to improve the assembly efficiency of the spacer 30.
  • the depth of the fitting groove 36 may be less than or equal to one-half of the thickness of the curved portion 34.
  • the depth of the groove 36 is suitable, and the structural strength of the curved portion 34 can be effectively ensured, and the fitting groove 36 can be effectively accommodated.
  • the engaging teeth 35 extend from the arc direction of the curved portion 36 toward the engaging groove 36 of the adjacent curved portion 34.
  • the plurality of curved portions 34 are symmetrically arranged with respect to the center of the spacer 30.
  • the spacer 30 has a good overall structure and can facilitate the assembly of the curved portion 34.
  • the plurality of curved portions 34 may have the same thickness, so that the overall flatness of the spacer 30 can be maintained.
  • the curved portions 34 are two, and the two ends of the two curved portions 34 are respectively provided with the fitting teeth 35 and the fitting grooves 36, and each of the curved portions 34 is provided with three hubs.
  • the perforations 22 are provided, and each of the curved portions 34 is further provided with a projection 33 which is disposed radially inward of the intermediate hub 22 in the middle. Since the length of extension of each of the curved portions 34 is large, by providing the three hub holes 22, the fixing reliability between the hub 20 and each of the curved portions 34 can be effectively ensured. Moreover, by providing the projections 33 on each of the curved portions 34, the positioning effect between the hub 20 and the spacers 30 can be ensured.
  • the curved portion 34 is greater than or equal to six.
  • the curved portion 34 is six, and the first and second ends of each curved portion 34 are respectively provided with matching teeth 35 and fitting grooves 36, each of which is curved.
  • the hub 34 is provided with a hub bore 22 and a projection 33, respectively, which are located radially inward of the hub bore 22.
  • each of the curved portions 34 is adapted to correspond to a hub bore 22, so that the structural strength of each of the curved portions 34 can be ensured, and the fixing between each of the curved portions 34 and the flange 24 of the hub 20 can be ensured.
  • the positioning effect between the hub 20 and the spacer 30 can be ensured.
  • the disk connecting claw 12 When assembled, the disk connecting claw 12 is correspondingly inserted into the hub key groove 21 of the hub 20 and the spacer key groove 32 on the spacer 30, and the side walls of the disk connecting claw 12 are respectively separated from the side wall and the side wall of the hub key groove 21.
  • the side walls of the key ring groove 32 are fitted, and the two end faces of the disk connecting claw 12 are respectively engaged with the bottom surface of the hub key groove 21 and the bottom surface of the spacer key groove 32.
  • the protrusion 33 of the spacer 30 fits in the arcuate groove 25 of the hub body 23, and finally the bolt passes through the corresponding hub through hole 22, the first disk body through hole 13 and the spacer ring through hole 31 in a loose fit, through the pad.
  • the sheet 50 and the nut are fastened to achieve assembly of the brake disc 100.
  • the spacer 30 can be withdrawn from the outer circumference of the hub body 23 by simply loosening all the spacers 50, bolts and nuts, and the disc connecting claws 12 of the disc body 10 are removed from the disc of the hub 20. Pulling out the hub keyway 21 completes the disassembly of the brake disc 100 and, in turn, replaces the new brake disc 100.
  • a rail transit vehicle includes the brake disc 100 for a rail transit vehicle of the above embodiment.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

La présente invention concerne un disque de frein (100) comprenant : un corps de disque (10), le corps de disque (10) étant pourvu d'un trou de corps de disque (11), une pluralité de griffes de raccordement de disque (12) s'étendant vers l'intérieur étant disposées sur la paroi périphérique du trou de corps de disque (11), et un premier trou de perçage de disque (13) est disposé dans la griffe de raccordement de disque (12); un moyeu de disque (20), une bride (24) du moyeu de disque (20) étant pourvue d'une pluralité de rainures de clavette de moyeu (21), et chacune des rainures de clavette de moyeu (21) est pourvue d'un trou de perçage de moyeu (22); une bague d'espacement (30), pourvue d'une pluralité de trous de perçage de bague d'espacement (31); et une pluralité de premiers éléments de fixation (40), chacun des premiers éléments de fixation (40) passe de manière correspondante à travers le trou de perçage de moyeu (22), le premier trou de perçage de disque (13) et le trou de perçage de bague d'espacement (31), pour fixer le corps de disque (10), le moyeu de disque (20) et la bague d'espacement (30). La présente invention concerne, en outre, un véhicule de transport ferroviaire comprenant le disque de frein (100).
PCT/CN2018/113094 2017-12-08 2018-10-31 Disque de frein et véhicule de véhicule de transport ferroviaire WO2019109762A1 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
CN201711295683.8A CN109899421A (zh) 2017-12-08 2017-12-08 盘体、制动盘以及轨道交通车辆
CN201711295666.4 2017-12-08
CN201721710600.2 2017-12-08
CN201711295683.8 2017-12-08
CN201721709805.9 2017-12-08
CN201721709805.9U CN207777471U (zh) 2017-12-08 2017-12-08 制动盘以及轨道交通车辆
CN201711295060.0 2017-12-08
CN201711295060.0A CN109899419A (zh) 2017-12-08 2017-12-08 制动盘以及轨道交通车辆
CN201721710410.0U CN207777472U (zh) 2017-12-08 2017-12-08 制动盘的压环以及制动盘
CN201721710410.0 2017-12-08
CN201711295666.4A CN109899420A (zh) 2017-12-08 2017-12-08 制动盘的压环以及制动盘
CN201721710600.2U CN207777473U (zh) 2017-12-08 2017-12-08 盘体、制动盘以及轨道交通车辆

Publications (1)

Publication Number Publication Date
WO2019109762A1 true WO2019109762A1 (fr) 2019-06-13

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CN201335113Y (zh) * 2008-12-09 2009-10-28 北京纵横机电技术开发公司 轴装制动盘装置
CN101865223A (zh) * 2010-06-07 2010-10-20 北京交通大学 一种轴装式结构约束释放型铁道车辆制动盘
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CN206111907U (zh) * 2016-08-30 2017-04-19 常州中车铁马科技实业有限公司 一种轴装制动盘
CN207777471U (zh) * 2017-12-08 2018-08-28 常州中车铁马科技实业有限公司 制动盘以及轨道交通车辆

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CN102099596A (zh) * 2008-07-18 2011-06-15 克诺尔-布里姆斯轨道车辆***有限公司 特别是用于轨道车辆的轴制动盘
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CN101865223A (zh) * 2010-06-07 2010-10-20 北京交通大学 一种轴装式结构约束释放型铁道车辆制动盘
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CN206111907U (zh) * 2016-08-30 2017-04-19 常州中车铁马科技实业有限公司 一种轴装制动盘
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CN114562526A (zh) * 2022-03-01 2022-05-31 山东倍瑞恳新材料有限公司 一种便于拆卸更换的分体式轨道车辆制动盘
CN114562526B (zh) * 2022-03-01 2024-01-23 山东倍瑞恳新材料有限公司 一种便于拆卸更换的分体式轨道车辆制动盘

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