CN216478606U - Powder metallurgy brake pad for standard motor train unit - Google Patents

Powder metallurgy brake pad for standard motor train unit Download PDF

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Publication number
CN216478606U
CN216478606U CN202123223190.8U CN202123223190U CN216478606U CN 216478606 U CN216478606 U CN 216478606U CN 202123223190 U CN202123223190 U CN 202123223190U CN 216478606 U CN216478606 U CN 216478606U
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brake lining
powder metallurgy
groups
sets
friction
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CN202123223190.8U
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Chinese (zh)
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任志强
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Shandong Zhonghai Yuanfeng Railway Materials Co ltd
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Shandong Zhonghai Yuanfeng Railway Materials Co ltd
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Abstract

The utility model discloses a powder metallurgy brake lining for standard EMUs, including two sets of brake lining backplates, the inboard mutual joint of two sets of brake lining backplates, the impartial interval in front of two sets of brake lining backplates is seted up in order to have nine circular slots of group, and the mounting hole has all been seted up to the inboard of nine circular slots of group. The above structure is adopted in the utility model, through adopting first baffle box, can carry out the water conservancy diversion to debris such as the inboard ice and snow friction piece of two sets of brake lining backplates, through adopting the second baffle box, can carry out the water conservancy diversion to debris such as the ice and snow friction piece at two sets of brake lining backplates middle parts, can carry out the water conservancy diversion to the ice and snow friction piece in the outside in two sets of brake lining backplates through setting up the third baffle box, thereby make this metallurgical brake lining chip removal ability stronger, the braking effect has been improved, set up first baffle box simultaneously, second baffle box and third baffle box still can improve the ventilation ability between the brake lining friction, and then realize quick heat dissipation, improve the life of brake lining friction.

Description

Powder metallurgy brake pad for standard motor train unit
Technical Field
The utility model belongs to the technical field of the EMUs, in particular to a powder metallurgy brake lining for standard EMUs.
Background
With the rapid development of high-speed trains in China, the safety performance of the high-speed trains is particularly important, the brake pads are key execution components of the high-speed train braking system, the kinetic energy of the trains is converted into frictional heat energy through the friction between the brake pads and the brake disc, the final stop of the trains during deceleration is realized, and the safe operation of the high-speed trains is ensured. With the continuous increase of the train operation speed, higher requirements are put forward on the brake pad structure and the friction material, and the high-speed motor train units which are operated on the current Chinese railways mainly comprise CRH1, CRH2, CRH3 and CRH5 series, and all use disc brake modes. The brake pad and the brake mounting interface are divided into a dovetail type and a non-dovetail type. The brake pad is assembled by a friction body assembly and a steel backing no matter which interface type;
present brake lining steel backing is the integral type, in the use, all need dismantle the monoblock steel backing and overhaul the change, and the chip removal performance of steel backing itself is relatively poor simultaneously, when using in cold areas, can not get rid of inclusion such as ice sand, frozen snow, abrasive dust effectively, and it is comparatively inconvenient to use.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the background art, the utility model aims at providing a powder metallurgy brake lining for standard EMUs to solve current brake lining steel backing and be the integral type, in the use, all need dismantle the monoblock steel backing and overhaul the change, the chip removal performance of steel backing itself is relatively poor simultaneously, when cold area uses, can not get rid of the problem of inclusion such as ice sand, frozen snow, abrasive dust effectively.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a powder metallurgy brake lining for standard EMUs, includes two sets of brake lining backplates, and is two sets of the inboard mutual joint of brake lining backplate is two sets of nine groups of circular slots are seted up in order to have nine equidistant in the front of brake lining backplate, nine groups the mounting hole has all been seted up to the inboard of circular slot, the inside equal fixed mounting of circular slot has friction subassembly, first baffle box has been seted up to the inboard of brake lining backplate, the second baffle box has been seted up to the centre of brake lining backplate, the third baffle box has been seted up in the outside of brake lining backplate.
Through adopting above-mentioned technical scheme, through adopting first baffle box, can carry out the water conservancy diversion to debris such as the inboard ice and snow friction piece of two sets of brake lining backplates, through adopting the second baffle box, can carry out the water conservancy diversion to debris such as the ice and snow friction piece at two sets of brake lining backplates middle parts, can carry out the water conservancy diversion to the ice and snow friction piece in the outside in two sets of brake lining backplates through setting up the third baffle box, thereby make this metallurgical brake lining chip removal ability stronger, the braking effect has been improved, set up first baffle box simultaneously, second baffle box and third baffle box still can improve the ventilation ability between the brake lining friction, and then realize quick heat dissipation, the life of improvement brake lining friction piece.
Further, as preferred technical scheme, the friction subassembly includes fixed block and jump ring, the positive fixed mounting of fixed block has the brake lining friction son, fixed mounting has the spacer pin in the middle of the back of fixed block, the rear end fixed mounting of spacer pin has the limiting plate, the fixed block is pegged graft in the circular slot inboard, the spacer pin runs through the mounting hole, the jump ring joint is connected in the surface of spacer pin and the inboard laminating of outer end and limiting plate.
Through adopting above-mentioned technical scheme, through setting up the fixed block joint to the circular slot inside, the rethread jump ring cup joints the spacer pin and contradicts with the limiting plate each other, can be comparatively stable install the brake lining backplate with the brake lining friction on, convenient the dismantlement simultaneously to adopt fixed block and circular slot inner wall to be spacing each other, can improve the stability of this metallurgical brake lining.
Further, as a preferred technical scheme, a metal gasket is fixedly installed between the clamp spring and the inner wall of the circular groove, and the section of the clamp spring is butterfly-shaped.
Through adopting above-mentioned technical scheme, through setting up metal shim, the installation stability of accessible metal shim improvement jump ring.
Furthermore, as a preferred technical scheme, nine groups of grooves are formed in the back surface of the brake pad back plate at equal intervals, and the positions of the nine groups of grooves correspond to the nine groups of circular grooves.
Through adopting above-mentioned technical scheme, through setting up the recess, can be used to hold the jump ring, and then make the back of brake lining backplate comparatively level and smooth, avoid the jump ring to hinder the installation.
Further, as a preferred technical scheme, the overlooking shape of the fixing block is circular, and the fixing block is a nodular cast iron fixing block.
Through adopting above-mentioned technical scheme, through the fixed block that sets up the nodular cast iron material, can absorb the vibrations that brake lining friction son produced at automatic in-process, can improve the life of ability and brake lining friction son of making an uproar falls.
Further, as a preferred technical scheme, arc grooves are formed in the front face of the brake pad friction piece at equal intervals, and the shape of the section of the brake pad friction piece is isosceles trapezoid.
Through adopting above-mentioned technical scheme, through seting up the arc groove, can form the anti-skidding line of a strip in the front of brake lining friction, and then improve the effect of friction braking, set up the brake lining friction of isosceles trapezoid tangent plane, can improve the positive area of brake lining friction, and then improve braking effect.
Further, as a preferred technical scheme, through holes are formed in the outer side and the middle of the brake pad back plate, and internal threads are arranged in the through holes.
Through adopting above-mentioned technical scheme, through setting up through-hole and inside being equipped with the internal thread, can install convenient to use through the through-hole when using.
Furthermore, as a preferred technical scheme, three groups of clamping grooves are formed in the two groups of brake pad back plates at equal intervals at the rear ends of the tops of the brake pad back plates at the lower ends, three groups of clamping blocks are formed in the two groups of brake pad back plates at equal intervals at the bottoms of the brake pad bodies at the upper ends, and the clamping blocks are inserted into the inner sides of the clamping grooves.
Through adopting above-mentioned technical scheme, through setting up three draw-in grooves of group and three fixture blocks of group, can peg graft the inside fixed two sets of brake lining backplates of draw-in groove through the fixture block when using, spacing each other through fixture block and draw-in groove inner wall simultaneously, can improve the stability between the brake lining backplate.
Further, as preferred technical scheme, the top and the bottom edges and corners of brake lining backplate all set up to the arc, the brake lining backplate sets up to stainless steel brake lining backplate.
Through adopting above-mentioned technical scheme, the edges and corners department through setting up the brake lining backplate is the arc, can improve the pleasing to the eye degree of brake lining backplate, saves manufacturing material simultaneously, and sets up stainless steel's brake lining backplate, can improve its corrosion resisting ability.
To sum up, the utility model discloses mainly have following beneficial effect:
firstly, through the split type installation between the brake pad back plates, when the brake pad back plates are installed for maintenance, screws on the brake pad back plates needing to be maintained and replaced can be disassembled, and the brake pad back plates can be drawn out, so that the installation and the use are convenient, and meanwhile, the split type structure is adopted, so that the brake pad back plates can be produced, packaged and transported conveniently, the use is convenient, and the practicability is strong;
secondly, sundries such as ice and snow friction scraps on the inner sides of the two brake pad back plates can be guided by adopting the first guide chute, sundries such as ice and snow friction scraps on the middle parts of the two brake pad back plates can be guided by adopting the second guide chute, and ice and snow friction scraps on the outer sides of the two brake pad back plates can be guided by arranging the third guide chute, so that the metallurgical brake pad has stronger chip removal capacity, the braking effect is improved, and meanwhile, the ventilation capacity among the brake pad friction shoes can be improved by arranging the first guide chute, the second guide chute and the third guide chute, so that quick heat dissipation is realized, and the service life of the brake pad friction shoes is prolonged;
third, through setting up the friction subassembly, can be when using, through in the mounting hole of pegging graft the round slot with the spacer pin, cup joint spacer pin department with the metal gasket this moment, through cup jointing the jump ring in the spacer pin outside, the jump ring is spacing each other with the limiting plate this moment, alright install the round slot inside with the fixed block, adopt the round slot to be spacing each other with the fixed block simultaneously, can avoid at the in-process of friction braking, the deformation fracture takes place for the spacer pin, when making this metallurgical brake lining have whole stronger brake capacity and stability, the comparatively convenient function of dismouting has been kept, further improvement the practicality of this metallurgical brake lining.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a structural view of the friction assembly of the present invention;
FIG. 3 is a rear view of the friction pack of the present invention;
FIG. 4 is a diagram of the circlip structure of the present invention;
fig. 5 is a rear view of the present invention.
Reference numerals: 1. brake lining backplate, 2, circular slot, 3, friction subassembly, 31, fixed block, 32, jump ring, 33, brake lining friction, 34, spacer pin, 35, limiting plate, 36, metal gasket, 37, arc groove, 4, mounting hole, 5, first baffle box, 6, second baffle box, 7, third baffle box, 8, recess, 9, through-hole, 10, draw-in groove, 11, fixture block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Example 1
Referring to fig. 1-5, the powder metallurgy brake lining for standard motor train unit described in this embodiment includes two sets of brake lining backplates 1, the inboard mutual joint of two sets of brake lining backplates 1, the impartial interval in front of two sets of brake lining backplates 1 is seted up in order to have nine groups of circular slots 2, mounting hole 4 has all been seted up to nine groups of circular slots 2's inboard, the inside equal fixed mounting of circular slot 2 has friction subassembly 3, first baffle box 5 has been seted up to brake lining backplate 1's inboard, second baffle box 6 has been seted up to brake lining backplate 1's centre, third baffle box 7 has been seted up to brake lining backplate 1's the outside.
Through adopting first baffle box 5, can carry out the water conservancy diversion to debris such as the ice and snow friction piece of 1 inboard of two sets of brake lining backplates, through adopting second baffle box 6, can carry out the water conservancy diversion to debris such as the ice and snow friction piece at 1 middle parts of two sets of brake lining backplates, can carry out the water conservancy diversion to the ice and snow friction piece in the outside in two sets of brake lining backplates 1 through setting up third baffle box 7, thereby make this metallurgical brake lining chip removal ability stronger, the braking effect has been improved, set up first baffle box 5 simultaneously, second baffle box 6 and third baffle box 7 still can improve the ventilation ability between the brake lining friction piece 33, and then realize quick heat dissipation, improve the life of brake lining friction piece 33.
Example 2
Referring to fig. 1 to 5, on the basis of embodiment 1, in order to achieve the purpose of improving the installation stability, the friction assembly 3 of this embodiment is innovatively designed, specifically, the friction assembly 3 includes a fixed block 31 and a snap spring 32, a pad friction piece 33 is fixedly installed on the front surface of the fixed block 31, a limit pin 34 is fixedly installed in the middle of the back surface of the fixed block 31, a limit plate 35 is fixedly installed at the rear end of the limit pin 34, the fixed block 31 is inserted into the inner side of the circular groove 2, the limit pin 34 penetrates through the installation hole 4, the snap spring 32 is clamped on the outer surface of the limit pin 34, the outer end of the snap spring is in fit connection with the inner side of the limit plate 35, a metal gasket 36 is fixedly installed between the snap spring 32 and the inner wall of the circular groove 2, the cross-sectional shape of the snap spring 32 is butterfly-shaped, nine sets of grooves 8 are equally spaced on the back surface of the pad back plate 1, the positions of the nine sets of grooves 8 correspond to the circular groove 2, and the fixed block 31 is circular groove in plan view, the fixing block 31 is a nodular cast iron fixing block 31; inside round slot 2 is connected to the joint through setting up fixed block 31, rethread jump ring 32 cup joints spacer pin 34 and limiting plate 35 and contradicts each other, can be comparatively stable with brake lining friction piece 33 install on brake lining backplate 1, convenient dismantlement simultaneously, and it is spacing each other with 2 inner walls of round slot to adopt fixed block 31, can improve the stability of this metallurgical brake lining, through setting up metal gasket 36, accessible metal gasket 36 improves jump ring 32's installation stability, through setting up recess 8, can be used to hold jump ring 32, and then make brake lining backplate 1's the back comparatively level and smooth, avoid jump ring 32 to hinder the installation, through setting up fixed block 31 of nodular cast iron material, can absorb the vibrations that brake lining friction piece 33 produced at the automatic process, can improve the life of ability of making an uproar and brake lining friction piece 33.
Referring to fig. 1-2, in order to achieve the purpose of improving the braking effect and the installation convenience of the metallurgical brake pad, arc grooves 37 are formed in the front surface of the brake pad friction member 33 of the embodiment at equal intervals, the section of the brake pad friction member 33 is shaped like an isosceles trapezoid, through holes 9 are formed in the outer side and the middle of the brake pad back plate 1, and internal threads are formed in the through holes 9; through seting up arc groove 37, can form the anti-skidding line of a strip in brake lining friction son 33's front, and then improve the effect of friction braking, set up the brake lining friction son 33 of isosceles trapezoid tangent plane, can improve the positive area of brake lining friction son 33, and then improve braking effect, through setting up through-hole 9 and inside being equipped with the internal thread, can install when using through-hole 9, facilitate the use.
Example 3
Referring to fig. 1 and fig. 5, on the basis of embodiment 2, in order to achieve the purpose of further improving the convenience and stability of the metallurgical brake pad, this embodiment has an innovative design on a brake pad back plate 1, specifically, three groups of slots 10 are formed at equal intervals at the rear end of the top of the brake pad back plate 1 at the lower end in two groups of brake pad back plates 1, three groups of blocks 11 are formed at equal intervals at the bottom of the brake pad body at the upper end in two groups of brake pad back plates 1, the blocks 11 are inserted into the inner sides of the slots 10, corners at the top and the bottom of the brake pad back plate 1 are both arc-shaped, and the brake pad back plate 1 is set to be a stainless steel brake pad back plate 1; through setting up three draw-in grooves 10 of group and three fixture blocks 11 of group, can peg graft draw-in groove 10 inside two sets of brake lining backplates 1 through fixture block 11 when using, spacing each other through fixture block 11 and draw-in groove 10 inner wall simultaneously, can improve the stability between brake lining backplate 1, the edges and corners department through setting up brake lining backplate 1 is the arc, can improve brake lining backplate 1's pleasing to the eye degree, save the manufacturing material simultaneously, and set up stainless steel's brake lining backplate 1, can improve its corrosion-resistant ability.
The use principle and the advantages are as follows: when in use, firstly, the limit pin 34 is inserted into the mounting hole 4 in the circular groove 2, then the metal gasket 36 is sleeved at the limit pin 34, the outside of the limit pin 34 is sleeved with the snap spring 32, the snap spring 32 and the limit plate 35 are mutually limited, the fixed block 31 can be mounted inside the circular groove 2, the clamping block 11 is inserted into the clamping groove 10 to assemble the two groups of backing plates, then the metallurgical brake pad is mounted through the through hole 9, in the braking process of a train, the first guide chute 5 can guide sundries such as ice and snow friction scraps inside the two groups of brake pad backing plates 1, the second guide chute 6 can guide sundries such as ice and snow friction scraps inside the two groups of brake pad backing plates 1, the third guide chute 7 can guide ice and snow friction scraps inside the two groups of brake pad backing plates 1, so that the metallurgical brake pad has strong chip removal capability, the braking effect is improved, and the ventilation capability among the brake pad friction scraps 33 can be improved by the first guide chute 5, the second guide chute 6 and the third guide chute 7, realize quick heat dissipation, improve brake lining friction 33 life-span, when needs overhaul, dismantle the screw on the brake lining backplate 1 that needs overhaul the change, take out one of them group brake lining backplate 1 and overhaul can.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a powder metallurgy brake lining for standard EMUs which characterized in that: including two sets of brake lining backplate (1), it is two sets of the mutual joint of brake lining backplate (1) inboard is two sets of the impartial interval in front of brake lining backplate (1) is seted up in order to have nine groups of circular slots (2), nine groups mounting hole (4) have all been seted up to the inboard of circular slot (2), inside equal fixed mounting of circular slot (2) has friction subassembly (3), first baffle box (5) have been seted up to the inboard of brake lining backplate (1), second baffle box (6) have been seted up to the centre of brake lining backplate (1), third baffle box (7) have been seted up in the outside of brake lining backplate (1).
2. The powder metallurgy brake lining for the standard motor train unit according to claim 1, is characterized in that: friction subassembly (3) are including fixed block (31) and jump ring (32), the positive fixed mounting of fixed block (31) has brake lining friction son (33), fixed mounting has spacer pin (34) in the middle of the back of fixed block (31), the rear end fixed mounting of spacer pin (34) has limiting plate (35), it is inboard in circular slot (2) to peg graft fixed block (31), mounting hole (4) are run through in spacer pin (34), jump ring (32) joint is connected in the surface of spacer pin (34) and the inboard laminating of outer end and limiting plate (35).
3. The powder metallurgy brake lining for the standard motor train unit according to claim 2, is characterized in that: a metal gasket (36) is fixedly installed between the clamp spring (32) and the inner wall of the circular groove (2), and the section of the clamp spring (32) is butterfly-shaped.
4. The powder metallurgy brake lining for the standard motor train unit according to claim 1, is characterized in that: nine groups of grooves (8) are formed in the back face of the brake pad back plate (1) at equal intervals, and the positions of the nine groups of grooves (8) correspond to the nine groups of circular grooves (2).
5. The powder metallurgy brake lining for the standard motor train unit according to claim 2, is characterized in that: the overlooking shape of the fixing block (31) is round, and the fixing block (31) is a nodular cast iron fixing block (31).
6. The powder metallurgy brake lining for the standard motor train unit according to claim 2, is characterized in that: arc grooves (37) are formed in the front face of the brake pad friction piece (33) at equal intervals, and the section of the brake pad friction piece (33) is isosceles trapezoid.
7. The powder metallurgy brake lining for the standard motor train unit according to claim 1, is characterized in that: through-hole (9) have all been seted up in the outside and the centre of brake lining backplate (1), be equipped with the internal thread in through-hole (9).
8. The powder metallurgy brake lining for the standard motor train unit according to claim 1, is characterized in that: three groups of clamping grooves (10) are formed in the two groups of brake lining back plates (1) at the top and the rear ends of the brake lining back plates (1) at the lower end at equal intervals, three groups of clamping blocks (11) are formed in the two groups of brake lining back plates (1) at the bottom of the brake lining body at the upper end at equal intervals, and the clamping blocks (11) are inserted into the inner sides of the clamping grooves (10).
9. The powder metallurgy brake lining for the standard motor train unit according to claim 1, is characterized in that: the top and the bottom edges and corners of the brake lining backboard (1) are both arc-shaped, and the brake lining backboard (1) is set to be a stainless steel brake lining backboard (1).
CN202123223190.8U 2021-12-21 2021-12-21 Powder metallurgy brake pad for standard motor train unit Active CN216478606U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123223190.8U CN216478606U (en) 2021-12-21 2021-12-21 Powder metallurgy brake pad for standard motor train unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123223190.8U CN216478606U (en) 2021-12-21 2021-12-21 Powder metallurgy brake pad for standard motor train unit

Publications (1)

Publication Number Publication Date
CN216478606U true CN216478606U (en) 2022-05-10

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Application Number Title Priority Date Filing Date
CN202123223190.8U Active CN216478606U (en) 2021-12-21 2021-12-21 Powder metallurgy brake pad for standard motor train unit

Country Status (1)

Country Link
CN (1) CN216478606U (en)

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