CN210707412U

CN210707412U - Friction type energy-absorbing anti-creeper for railway vehicle

Info

Publication number: CN210707412U
Application number: CN201921130989.2U
Authority: CN
Inventors: 鲁寨军; 范登科; 孙成名; 王天骏; 许平; 彭勇; 黄伟佳
Original assignee: Central South University
Current assignee: Central South University
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-06-09
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a friction formula rail vehicle energy-absorbing anticreeper, including friction lever, anti-creep pinion rack and direction base, the one end and the anti-creep pinion rack of friction lever are connected, and the other end still includes the friction energy-absorbing subassembly with the guiding hole sliding connection of direction base, is provided with the friction on the friction energy-absorbing subassembly and cup joints the hole, and the friction lever is pegged graft with the mode of tight fit and cup joints downtheholely at the friction, and this friction energy-absorbing subassembly is spacing through the terminal surface of direction base. The utility model discloses a friction pole and the friction of friction tile mode of inhaling energy will strike kinetic energy and change into heat energy dissipation, guarantee vehicle and personnel's safety, prevent to take place to climb the car and turn on one's side. The utility model has the advantages of simple and practical structure, high energy absorption efficiency, stable braking force after collision, repeated use and the like; meanwhile, the energy absorption adjustability is good, and the collision working conditions of the rail vehicles at different speed grades can be met by selecting the belleville springs with different specifications or regulating and controlling different compression amounts of the belleville springs, so that the collision resistance of the rail vehicles is improved.

Description

Friction type energy-absorbing anti-creeper for railway vehicle

Technical Field

The utility model belongs to rail transit buffering energy-absorbing field especially relates to a friction formula rail vehicle energy-absorbing anticreeper.

Background

At present, with the rapid development of the rail transit industry, the passive safety performance of the rail vehicle is also more and more emphasized. When a collision occurs in a train collision, severe damage phenomena such as arching, climbing, overturning and the like of the train are easily caused, on one hand, the colliding vehicle is greatly deformed, and on the other hand, the life safety of passengers is seriously threatened. In order to reduce the damage of train collision accidents to the train body and the injury of passengers, anti-creepers are usually arranged at two ends of the train so as to achieve the effect of buffering and absorbing energy.

The existing train anti-creepers generally have the following forms:

1. cutting, planing and broaching type anti-creeper: the anti-creep device has strict requirements on the processing technology, and the phenomenon of melting and breaking of the cutter is serious, and the reliability is poor.

2. Foamed aluminum energy-absorbing anti-creeper: the foam structure material has the advantages of complex preparation process and high cost, and the foam material has non-uniform shapes and sizes of cells, irregular arrangement and poor compression controllability.

3. Metal section bar + built-in guide structure: the structure has poor controllability of compression deformation, and the impact force is large in fluctuation and the energy absorption efficiency is low in the process of forming wrinkles by compression.

4. Thin-walled structure + built-in composite drawer type structure: the structure has the advantages of large weight and poor unbalance loading resistance, and the anti-creeper is easy to generate unbalance loading failure at the initial collision stage of the train.

Therefore, the development of the energy-absorbing anti-creeper with simple and practical structure, stable braking force and high reliability has important practical significance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a friction formula rail vehicle energy-absorbing anticreeper to solve above-mentioned problem.

In order to realize the above-mentioned purpose, the utility model discloses a friction formula rail vehicle energy-absorbing anticreeper, including friction lever, anti-creep toothed plate and direction base, the one end of friction lever with anti-creep toothed plate connects, the other end with the guiding hole sliding connection of direction base still includes the friction energy-absorbing subassembly, it cup joints the hole to be provided with the friction on the friction energy-absorbing subassembly, the friction lever is pegged graft with the mode of tight fit friction cup joints downtheholely, and this friction energy-absorbing subassembly passes through the terminal surface of direction base is spacing.

Furthermore, the friction bush is detachably mounted in the friction sleeve hole, one side of the friction bush is attached to the outer wall of the friction rod, and the other side of the friction bush is attached to the inner wall of the friction sleeve hole.

Furthermore, the friction energy absorption assembly comprises an upper half shaft sleeve and a lower half shaft sleeve which are oppositely arranged, wherein the upper half shaft sleeve and the lower half shaft sleeve are respectively provided with a sleeving groove, the friction tile is arranged in any one of the sleeving grooves, and the sleeving grooves which are oppositely arranged form the friction sleeving hole.

Furthermore, the sleeve groove is provided with limiting steps along two axial sides of the friction rod, and the friction tile is axially limited through the limiting steps.

Further, go up half axle sleeve and half axle sleeve down "omega" shape elastic construction that is the integral type, including the pterygoid lamina of the arc in the middle of and both sides, the wall thickness of arc evenly sets up, be provided with the pterygoid lamina through-hole that is used for connecting on the pterygoid lamina.

Furthermore, the novel adjustable oil pump further comprises a baffle, an adjusting bolt and a spring, wherein a baffle through hole corresponding to the wing plate through hole is formed in the baffle, the adjusting bolt penetrates through the baffle through hole and the wing plate through hole to connect the upper half shaft sleeve and the lower half shaft sleeve into a whole, and the spring is sleeved on the adjusting bolt and located between the baffle and the wing plate.

Further, the spring is a disc spring sleeved on the adjusting bolt.

Furthermore, the friction tile is a carbon ceramic friction plate or a rubber friction plate, and the friction coefficient between the friction tile and the friction rod is 0.3-0.4.

Furthermore, the outer side of the arc-shaped plate is fixedly connected with a supporting rib which can be in contact with the end face of the guide base, and the supporting rib is provided with a supporting rib through hole for installation.

Further, the support rib through hole is a kidney-shaped hole, and the kidney-shaped hole extends along the radial direction of the guide hole.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a friction pole and the friction of friction tile mode of inhaling energy will strike kinetic energy and change into heat energy dissipation, guarantee vehicle and personnel's safety, prevent to take place to climb the car and turn on one's side. The utility model has the advantages of simple and practical structure, high energy absorption efficiency, stable braking force after collision and the like, and can be used repeatedly, thus greatly saving the use cost; meanwhile, the energy absorption adjustability is good, the positive pressure of the upper half shaft sleeve and the positive pressure of the lower half shaft sleeve can be adjusted by selecting the belleville springs with different specifications or adjusting and controlling different compression amounts of the belleville springs, so that the collision working conditions of the rail vehicles at different speed grades can be met, the application range is expanded, and the collision resistance of the rail vehicles is improved. Moreover, the friction braking is stable, and the peak force is small.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a first axis schematic view of a friction rail vehicle energy absorbing anti-creeper disclosed in a preferred embodiment of the present invention;

FIG. 2 is an exploded schematic view of a friction type rail vehicle energy absorption anti-creeper disclosed in the preferred embodiment of the present invention;

FIG. 3 is a third axial schematic view of the energy-absorbing anti-creeper for a friction-type rail vehicle according to the preferred embodiment of the present invention;

fig. 4 is a schematic axial view of the fit of the upper half shell and the bearing shell.

Illustration of the drawings:

1. a friction lever; 2. an anti-creep toothed plate; 3. a guide base; 4. a guide hole; 5. a friction energy absorbing assembly; 6. friction sleeve holes; 7. friction tiles; 8. an upper half shaft sleeve; 9. a lower half shaft sleeve; 10. a sleeving groove; 11. a limiting step; 12. an arc-shaped plate; 13. a wing plate; 14. a wing plate through hole; 15. a baffle plate; 16. adjusting the bolt; 17. a spring; 18. a baffle through hole; 19. a support rib; 20. a support rib through hole; 21. countersunk head screw.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1-4, the utility model discloses a friction-type rail vehicle energy-absorbing anti-creeper, including friction lever 1, anti-creeper tooth plate 2 and guide base 3, guide base 3 includes the installation terminal surface of one end and automobile body installation and the spacing terminal surface of the other end, all similar flange structure, one end of friction lever 1 is connected with anti-creeper tooth plate 2, the other end is with the guiding hole 4 sliding connection of guide base 3, guiding hole 4 guarantees not unstability when colliding, wherein, anti-creeper still includes friction energy-absorbing component 5, be provided with friction cup joint hole 6 on friction energy-absorbing component 5, friction lever 1 pegs graft in friction cup joint hole 6 with the mode of tight fit, thereby form the friction pair, this friction energy-absorbing component 5 is spacing through the terminal surface of guide base 3, once the collision takes place, friction lever 1 can acutely rub with the inner wall of friction cup joint hole 6, change impact kinetic energy into heat energy and dissipate, the safety of vehicles and personnel is guaranteed, and the vehicles are prevented from climbing and turning over.

In this embodiment, in order to guarantee that anticreeper reuse, use cost is reduced, removable friction tile 7 of installing in the friction cup joint hole 6, friction tile 7 is carbon pottery friction disc or rubber friction disc, the coefficient of friction between carbon pottery friction disc or rubber friction disc and the friction lever 1 is 0.3-0.4, the laminating of friction tile 7 one side and friction lever 1's outer wall, the laminating of opposite side and the inner wall of friction cup joint hole 6, after the collision takes place, friction tile 7 became invalid, at this moment, only need change wearing parts friction tile 7, can realize anticreeper's reuse. Further, for better dismouting friction energy-absorbing subassembly 5, friction energy-absorbing subassembly 5 designs for split type structure, specifically including relative setting, complete symmetrical last axle sleeve 8 and lower axle sleeve 9, last axle sleeve 8 and lower axle sleeve 9 all are provided with cover groove 10, and any set of inslot 10 is provided with friction tile 7, and friction tile 7 passes through countersunk screw 21 fastening wherein, and the cover groove 10 that sets up relatively forms friction cup joint hole 6. Wherein, in this embodiment, in order to prevent the collision, friction tile 7 cuts off countersunk screw 21, cup joints the spacing step 11 that groove 10 set up along friction lever 1 axial both sides, and friction tile 7 is spacing through spacing step 11 to shift the axial force that friction tile 7 received to spacing step 11, thereby protect countersunk screw 21.

In this embodiment, last half axle sleeve 8 and lower half axle sleeve 9 are the "omega" shape structure of integral type, the adoption has better elastic spring steel, pterygoid lamina 13 including middle arc 12 and both sides, the wall thickness of arc 12 evenly sets up, when specifically setting up, pterygoid lamina 13's thickness is greater than arc 12, thereby guarantee that arc 12 is preferred pterygoid lamina 13 to be out of shape, be provided with the pterygoid lamina through-hole 14 that is used for bolted connection on the pterygoid lamina 13, because the setting of the even wall thickness of arc 12 and spring steel, last half axle sleeve 8 and lower half axle sleeve 9 receive adjusting bolt 16 to compress tightly the back, arc 12 can form the trend of laminating parcel friction lever 1, the whole inner wall of arc 12 can both evenly compress tightly on friction tile 7, avoid the stress concentration phenomenon on friction tile 7 top, and then the effect of energy-absorbing has been improved.

In this embodiment, still include baffle 15, adjusting bolt 16 and spring 17, be provided with the baffle through-hole 18 that corresponds with pterygoid lamina through-hole 14 on the baffle 15, adjusting bolt 16 passes baffle through-hole 14 and pterygoid lamina through-hole 18 and connects upper half axle sleeve 8 and lower half axle sleeve 9 integratively, spring 17 cup joints on adjusting bolt 16 and is located between baffle 15 and pterygoid lamina 13, through the pre-compaction effect of spring 17, even vibration exists, upper half axle sleeve 8 and lower half axle sleeve 9 also can keep compressing tightly all the time, prevent the not hard up of adjusting bolt 16. The spring 17 is cup jointed the belleville spring on adjusting bolt 16, and belleville spring energy absorption adjustability is good, through selecting for use the belleville spring of different specifications or the different compression of regulation and control belleville spring, can accurately set up the normal pressure between friction tile 7 and friction lever 1, can satisfy rail vehicle under the different speed grades and collide the operating mode, for example, the same anticreeper of this application both can use on high-speed railway, also can use on low and medium speed urban rail train or the earth train, and then has wider universal performance. On the one hand, the crashworthiness of the railway vehicle is improved. Meanwhile, after the friction tile 7 and the friction rod 1 complete a friction buffering energy absorption process, the friction rod 1 is retracted by loosening the adjusting bolt 16, and the adjusting bolt 16 is continuously screwed, so that the friction tile 7 can be used for multiple times until the friction tile 7 is worn and exhausted, the use times of the same anti-creeper are increased, and the use cost of the anti-creeper is reduced.

In this embodiment, the outer side of the arc plate 12 is fixedly connected with a support rib 19 which can contact with the end surface of the guide base 3, so that the four directions of the friction energy absorption assembly can act on the guide base 3, thereby better avoiding instability, and the support rib 19 is provided with a support rib through hole 20 for installation. And the support rib through-holes 20 are kidney-shaped holes extending in the axial direction of the wing plate through-holes 14. This is because the kidney-shaped holes are provided to allow a certain amount of relative movement between the upper shell half 8 and the lower shell half 9 during tightening of the adjusting bolts 16, and during assembly, the energy absorbing friction member 5 is assembled and then mounted to the guide base 3.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a friction formula rail vehicle energy-absorbing anticreeper, includes friction lever (1), anti-creep pinion rack (2) and direction base (3), the one end of friction lever (1) with anti-creep pinion rack (2) are connected, the other end with guiding hole (4) sliding connection of direction base (3), its characterized in that still includes friction energy-absorbing subassembly (5), it cup joints hole (6) to be provided with the friction on friction energy-absorbing subassembly (5), friction lever (1) is in with the mode of tight fit is pegged graft in the friction cup joints hole (6) in order to form the friction pair, and this friction energy-absorbing subassembly (5) pass through the terminal surface of direction base (3) is spacing.

2. The friction type energy-absorbing anti-creeper for railway vehicles according to claim 1, wherein a friction tile (7) is detachably mounted in the friction sleeve hole (6), one side of the friction tile (7) is attached to the outer wall of the friction rod (1) to form the friction pair, and the other side of the friction tile is fixedly connected to the inner wall of the friction sleeve hole (6).

3. The friction-type rail vehicle energy-absorbing anti-creeper according to claim 2, wherein the friction energy-absorbing assembly (5) comprises an upper half shaft sleeve (8) and a lower half shaft sleeve (9) which are oppositely arranged, wherein the upper half shaft sleeve (8) and the lower half shaft sleeve (9) are respectively provided with a sleeving groove (10), the friction tile (7) is arranged in any one of the sleeving grooves (10), and the opposite sleeving groove (10) forms the friction sleeving hole (6).

4. The energy-absorbing anti-creeper of a friction type rail vehicle according to claim 3, wherein the sleeving grooves (10) are provided with limiting steps (11) along two axial sides of the friction rod (1), and the friction tile (7) is axially limited by the limiting steps (11).

5. The friction type energy-absorbing anti-creeper for the rail vehicle as claimed in claim 4, wherein the upper half shaft sleeve (8) and the lower half shaft sleeve (9) are both of an integral omega-shaped elastic structure and comprise an arc-shaped plate (12) in the middle and wing plates (13) on two sides, the wall thickness of the arc-shaped plate (12) is uniformly arranged, and wing plate through holes (14) for connection are formed in the wing plates (13).

6. The friction type rail vehicle energy-absorbing anti-creeper of claim 5, further comprising a baffle plate (15), an adjusting bolt (16) and a spring (17), wherein the baffle plate (15) is provided with a baffle plate through hole (18) corresponding to the wing plate through hole (14), the adjusting bolt (16) penetrates through the baffle plate through hole (18) and the wing plate through hole (14) to connect the upper half shaft sleeve (8) and the lower half shaft sleeve (9) into a whole, and the spring (17) is sleeved on the adjusting bolt (16) and is located between the baffle plate (15) and the wing plate (13).

7. The friction rail vehicle energy-absorbing anti-creeper according to claim 6, characterized in that the spring (17) is a belleville spring which is sleeved on the adjusting bolt (16).

8. The friction-type rail vehicle energy-absorbing anti-creeper according to any one of claims 2 to 7, characterized in that the friction shoe (7) is a carbon-ceramic friction plate or a rubber friction plate, and the friction coefficient between the friction shoe (7) and the friction rod (1) is 0.3 to 0.4.

9. The energy-absorbing anti-creeper for friction-type rail vehicles according to any one of claims 5 to 7, wherein a support rib (19) capable of contacting with the end face of the guide base (3) is fixedly connected to the outer side of the arc-shaped plate (12), and a support rib through hole (20) for installation is formed in the support rib (19).

10. The energy-absorbing creeper of claim 9, wherein the support rib through hole (20) is a kidney-shaped hole extending in a radial direction of the guide hole (4).