CN113619638A

CN113619638A - Coupler buffer device for locomotive traction connection

Info

Publication number: CN113619638A
Application number: CN202111042333.7A
Authority: CN
Inventors: 常兵
Original assignee: Individual
Current assignee: Zhuzhou CRRC Special Equipment Technology Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2021-11-09
Anticipated expiration: 2041-09-07
Also published as: CN113619638B

Abstract

The invention relates to the technical field of coupler buffers and discloses a coupler buffer device for locomotive traction connection. This a coupling buffer for locomotive traction connects, to the setting of first gyro wheel and second gyro wheel, when buffer sleeve accomplishes still having great impact force between it behind the first cushioning effect, then can wholly drive two sets of buffer sleeve and move to the inboard, and make it can stagger each other under the extrusion impact of adjacent locomotive, thereby utilize its self gravity in order to cushion the impact force between the adjacent two sets of locomotives, in order to form secondary cushioning effect between the adjacent two sets of locomotives, and then improved this coupling buffer effectively and can bear and work as the buffer strength.

Description

Coupler buffer device for locomotive traction connection

Technical Field

The invention relates to the technical field of coupler buffers, in particular to a coupler buffer device for locomotive traction connection.

Background

The coupler buffer is used as an important part for mutually coupling a plurality of groups of locomotives, wherein the coupler mainly transmits traction force and keeps a gap between the locomotives without power output; the buffer is mainly used for relieving longitudinal impact force and vibration generated between a plurality of groups of locomotives in the process of carrying out deceleration braking, thereby reducing the damage to the vehicle structure and goods loaded by the vehicle structure.

The buffer effect of the existing coupler buffer is realized by means of buffering the impact force by compressing the elastic element and absorbing the impact energy by using the friction damping of the elastic element in the deformation process, however, the buffer mode has large damage to the compressed elastic element when facing a locomotive with huge impact force and is difficult to effectively bear the large impact force, so that the shock absorber becomes a vulnerable part in the coupler buffer device, and needs to be periodically detected and replaced, thereby increasing the cost of the coupler buffer device in use and increasing the workload of maintenance personnel.

Therefore, a coupler draft gear for a locomotive traction link is needed to overcome the above-mentioned drawbacks of the conventional coupler draft gear.

Disclosure of Invention

Technical problem to be solved

The invention provides a coupler buffer device for locomotive traction connection, which has the advantages of bearing larger impact force, not damaging internal components when the coupler buffer device faces larger impact force, having higher stability and reliability of the whole structure without storing vulnerable parts, having lower use cost and not needing to detect and replace the same regularly, and solves the problems that the existing coupler buffer device has larger damage to an upper compression elastic element and is difficult to effectively bear larger impact force, so that the coupler buffer device becomes the vulnerable part in the coupler buffer device and needs to detect and replace the same regularly, the cost of the coupler buffer device in use is increased, and the workload of maintenance personnel is increased.

(II) technical scheme

The invention provides the following technical scheme: a coupler buffer device for locomotive traction connection comprises a first buffer member and a second buffer member, wherein the first buffer member comprises a first group of buffer sleeves, the middle parts of one ends of the first group of buffer sleeves are fixedly provided with first rollers, the second buffer member comprises a second group of buffer sleeves, the middle parts of one ends of the second group of buffer sleeves are fixedly provided with second rollers, and the first rollers and the second rollers are in friction transmission connection through fixed clamping plates;

the buffer sleeve is characterized in that one end of the buffer sleeve is provided with a vent hole communicated to the interior of the buffer sleeve, one side of the outer surface of the buffer sleeve is provided with a through groove communicated to the interior of the buffer sleeve, one side of the outer surface of the buffer sleeve is fixedly provided with a fixed lug seat at a position corresponding to the through groove, the middle of the inner cavity of the buffer sleeve is movably sleeved with a buffer piston, one end of the buffer piston is fixedly provided with a fixed connecting shaft extending to the outside of the buffer piston, and the fixed lug seat is connected with a limit baffle in a pin joint mode.

Preferably, the first roller comprises a fixed connecting shaft, one side of the outer surface of the fixed connecting shaft is fixedly connected with one end of the first group of buffer sleeves, and a sliding shaft sleeve is movably sleeved on the outer surface of the fixed connecting shaft.

Preferably, the outer surface of the second roller wheel is in contact with the outer surface of the sliding shaft sleeve, a tail plate is arranged on one side of the outer surface of the second roller wheel, and meanwhile, the distance between the central axis of the fixed connecting shaft and the central axis of the second roller wheel is equal to the distance between two circle centers on the fixed clamping plate.

Preferably, the middle part of the outer surface of the fixed connecting shaft is movably sleeved with a reinforcing shaft sleeve, the outer surface of the reinforcing shaft sleeve is in contact with the inner wall of the buffering sleeve, and the other side of the outer surface of the fixed connecting shaft is movably sleeved with a return spring between the reinforcing shaft sleeve and the buffering piston.

Preferably, one side of the outer surface of the fixed connecting shaft is provided with a sliding groove, so that the fixed connecting shaft and the locomotive are movably connected.

Preferably, one end of the limit baffle can rotatably extend into the inner cavity of the buffer sleeve, one side of the limit baffle and one side of the inner wall of the through groove are mutually attracted and contacted in an initial state through the magnet, and the limit baffle and the central axis of the buffer sleeve are kept in a vertical state.

(III) advantageous effects

The invention has the following beneficial effects:

1. the coupler buffer device for locomotive traction connection is characterized in that through the arrangement of a buffer sleeve, a buffer piston and a vent hole, when the coupler buffer device is subjected to impact pressure, the buffer piston is driven to extrude the air in the inner cavity of the buffer sleeve, further converting the impact force generated by the locomotive in the braking process into the internal energy of the air in the inner cavity of the buffering sleeve, continuously discharging the air through the vent hole to release energy, impact force between two adjacent groups of locomotives is buffered in a squeezing exhaust mode, compared with the prior art, the coupler buffer device can bear larger impact force, and it replaces compression elastic component in order to realize the cushioning effect to the locomotive through the mode of extrusion exhaust, has avoided needing regular problem of detecting the change to it because of compressing the vulnerable of elastic component, and stability is higher and life is longer.

2. This a coupling buffer for locomotive traction connects, to the setting of first gyro wheel and second gyro wheel, when buffer sleeve accomplishes still having great impact force between it behind the first cushioning effect, then can wholly drive two sets of buffer sleeve and move to the inboard, and make it can stagger each other under the extrusion impact of adjacent locomotive, thereby utilize its self gravity in order to cushion the impact force between the adjacent two sets of locomotives, in order to form secondary cushioning effect between the adjacent two sets of locomotives, and then improved this coupling buffer effectively and can bear and work as the buffer strength.

3. This a coupling buffer for locomotive pulls connection to strengthening the setting of axle sleeve, when two sets of cushion collar receive the impact often stagger each other under the effect of first gyro wheel and second gyro wheel for strengthen whole cushion collar's bending strength, make its difficult emergence bending deformation, and then improved this coupling buffer's overall structure intensity and stability effectively.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a schematic view of a cushion sleeve according to the present invention;

FIG. 4 is a schematic view of a first cushioning member according to the present invention;

FIG. 5 is a schematic view of a second cushioning member according to the present invention.

In the figure: 1. a buffer sleeve; 2. a first roller; 3. a second roller; 4. fixing the clamping plate; 5. a vent hole; 6. a through groove; 7. fixing the ear seat; 8. fixing the connecting shaft; 9. a sliding shaft sleeve; 10. a cushion piston; 11. fixing the connecting shaft; 12. reinforcing the shaft sleeve; 13. a return spring; 14. a sliding groove; 15. and a limiting baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a coupler draft gear for locomotive traction connection includes a first buffer member and a second buffer member, the first buffer member includes a first set of buffer sleeves 1, a first roller 2 is fixedly installed in the middle of one end of the first set of buffer sleeves 1, the second buffer member includes a second set of buffer sleeves 1, a second roller 3 is fixedly installed in the middle of one end of the second set of buffer sleeves 1, the first roller 2 and the second roller 3 are connected through a fixed splint 4 in a friction transmission way, the first buffer component is fixedly arranged on one group of locomotives, the second buffer component is fixedly arranged on the other group of locomotives, the arrangement of the first roller 2 and the second roller 3 enables the two groups of buffer sleeves 1 to be mutually staggered under the extrusion impact of adjacent locomotives, and further the self gravity of the buffer sleeves is utilized to buffer the impact force between the two adjacent groups of locomotives;

as shown in fig. 3, one end of the buffer sleeve 1 is provided with a vent hole 5 communicated to the inside of the buffer sleeve, and meanwhile, the size of the aperture of the vent hole 5 on the buffer sleeve 1 can be controlled to adjust the discharge flow of air in the inner cavity of the buffer sleeve 1, so as to adjust the buffer strength of the buffer sleeve to the impact force of the locomotive, one side of the outer surface of the buffer sleeve 1 is provided with a through groove 6 communicated to the inside of the buffer sleeve, the number of the through grooves 6 is set to three groups and are arranged in an annular array, one side of the outer surface of the buffer sleeve 1 and the position corresponding to the through groove 6 are fixedly provided with a fixed lug seat 7, the middle part of the inner cavity of the buffer sleeve 1 is movably sleeved with a buffer piston 10, one end of the buffer piston 10 is fixedly provided with a fixed connecting shaft 11 extending to the outside of the buffer piston, and the fixed lug seat 7 is pinned with a limit baffle 15.

When the coupler buffer device is pulled by the arrangement of the vent holes 5 on the buffer sleeves 1, two groups of buffer pistons 10 can be automatically driven to move outwards, negative pressure is formed in the inner cavities of the two groups of buffer sleeves 1, and air is automatically filled into the inner cavities; when the coupler buffer device is under pressure, the two groups of buffer pistons 10 are automatically driven to respectively extrude the air in the inner cavities of the two groups of buffer sleeves 1 and discharge the air through the vent holes 5 on the buffer sleeves 1, so that the impact force generated by the locomotive in the braking process is converted into the internal energy of the air filled in the inner cavities of the buffer sleeves 1 and is continuously released through the vent holes 5, and the buffering effect of the locomotive in the braking process is realized.

As shown in fig. 4, in the present technical solution, the first roller 2 includes a fixed connecting shaft 8, one side of the outer surface of the fixed connecting shaft 8 is fixedly connected to one end of the first group of buffer sleeves 1, and a sliding shaft sleeve 9 is movably sleeved on the outer surface of the fixed connecting shaft 8.

Wherein, to the fixed even axle 8 of fixing on first gyro wheel 2 and the setting of slip axle sleeve 9, through the mode of sliding friction with reduce and receive the extrusion wearing and tearing that produce when extrudeing between first gyro wheel 2 and the second gyro wheel 3, and then prolonged this coupling buffer's life effectively.

As shown in fig. 5, in the present technical solution, the outer surface of the second roller 3 and the outer surface of the sliding shaft sleeve 9 contact each other, and a tail plate is disposed on one side of the outer surface of the second roller 3 for limiting the sliding direction of the sliding shaft sleeve 9 on the first roller 2 when being squeezed, and meanwhile, the distance between the central axis of the fixed connecting shaft 8 and the central axis of the second roller 3 is equal to the distance between two circle centers on the fixed clamp plate 4, so as to ensure that the outer surface of the sliding shaft sleeve 9 and the outer surface of the second roller 3 always keep a contact state.

In this technical scheme, the middle part activity of fixed even 11 surfaces of axle has cup jointed and has strengthened axle sleeve 12, and strengthens contacting each other between the outer surface of axle sleeve 12 and the inner wall of cushion sleeve 1, and the opposite side of fixed even 11 surfaces of axle just strengthens the activity cup jointed reset spring 13 between axle sleeve 12 and the buffer piston 10.

Wherein, to strengthening the setting of axle sleeve 12 for strengthen whole buffer sleeve 1's bending strength, make it be difficult for taking place bending deformation, and, when two sets of buffer sleeve 1 received the impact, under the effect of first gyro wheel 2 and second gyro wheel 3 on it, make and stagger each other between it, in order to utilize the gravity of two sets of motor cars to cushion its impact force that produces in braking process.

In the technical scheme, three groups of sliding grooves 14 which are distributed in an annular array are formed in one side of the outer surface of the fixed connecting shaft 11, so that the fixed connecting shaft and the locomotive form a movable connection, and when the fixed connecting shaft is impacted by the locomotive, the fixed connecting shaft can move inwards to drive the reinforcing shaft sleeve 12 to compress the return spring 13 and drive the buffer piston 10 to move inwards to extrude and discharge air in the inner cavity of the buffer sleeve 1.

In this technical scheme, the one end of limit baffle 15 can rotate and extend to among the inner chamber of cushion sleeve 1, and attract each other, contact through magnet under initial state between one side of its one side and the logical groove 6 inner wall to keep looks vertically state between the axis with cushion sleeve 1, and then, make limit baffle 15 form one-way atress mechanism in order when this coupling buffer receives the pulling force, can prevent effectively that cushion piston 10 breaks away from cushion sleeve 1 and the condition emergence of unable transmission traction force.

The use method and the working principle of the embodiment are as follows:

firstly, the coupler buffer device is connected between two groups of locomotives through a sliding groove 14 on a fixed connecting shaft 11:

when the locomotive normally runs, the fixed connecting shaft 11 is pulled to drive the buffer piston 10 on the fixed connecting shaft to move outwards, and the reset spring 13 is compressed to enable the reinforcing shaft sleeve 12 to move to the outermost side and be separated from the limiting baffle 15 until the buffer piston 10 moving outwards contacts with the limiting baffle 15 to form fixed connection between the two groups of locomotives to transmit traction force, meanwhile, negative pressure is formed in the inner cavity of the buffer sleeve 1, and outside air enters the inner cavity of the buffer sleeve through the vent hole 5 on the buffer sleeve;

when the locomotive is braked, the speed difference between two adjacent locomotives is caused by inertia, the reinforcing shaft sleeve 12 is pressed and the return spring 13 is compressed under the action of the sliding groove 14 on the fixed connecting shaft 11, the reinforcing shaft sleeve 12 is completely inserted into the inner cavity of the buffering sleeve 1, and meanwhile, the buffering piston 10 is driven to move inwards and compress air in the inner cavity of the buffering sleeve 1, so that the impact force between the locomotives is converted, the internal energy of the air in the inner cavity of the buffering sleeve 1 is buffered, the air in the buffering sleeve 1 is exhausted again through the vent hole 5 on the buffering sleeve 1, and the internal energy is released, so that the impact force between two adjacent locomotives is primarily buffered;

after the air in the inner cavity of the buffer sleeve 1 is completely discharged, if a large impact force exists between the buffer sleeve 1 and the buffer sleeve, the buffer sleeve 1 is integrally driven to move inwards, and the two groups of buffer sleeves 1 are staggered with each other under the action of the first roller 2 and the second roller 3, so that the gravity of the locomotive is utilized to buffer the impact force between the two groups of the locomotive, and a secondary buffer effect is formed between the two adjacent groups of the locomotives.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1. A coupler draft gear for a locomotive draft link, comprising a first cushioning member and a second cushioning member, characterized in that: the first buffering component comprises a first group of buffering sleeves (1), a first roller (2) is fixedly installed in the middle of one end of each first group of buffering sleeves (1), the second buffering component comprises a second group of buffering sleeves (1), a second roller (3) is fixedly installed in the middle of one end of each second group of buffering sleeves (1), and the first roller (2) is in friction transmission connection with the second roller (3) through a fixing clamp plate (4);

the one end of buffer sleeve (1) is seted up and is linked to its inside air vent (5), and one side of buffer sleeve (1) surface is seted up and is linked to its inside logical groove (6), fixed mounting has fixed ear seat (7) on one side of buffer sleeve (1) surface and the corresponding position of logical groove (6), buffer piston (10) have been cup jointed in the middle part activity of buffer sleeve (1) inner chamber, and the one end fixed mounting of buffer piston (10) has fixed even axle (11) that extends to its outside, the round pin joint has limit baffle (15) on fixed ear seat (7).

2. A coupler draft gear for a locomotive draft link according to claim 1 wherein: the first idler wheel (2) comprises a fixed connecting shaft (8), one side of the outer surface of the fixed connecting shaft (8) is fixedly connected with one end of the first group of buffer sleeves (1), and a sliding shaft sleeve (9) is movably sleeved on the outer surface of the fixed connecting shaft (8).

3. A coupler draft gear for a locomotive draft link according to claim 1 wherein: the outer surface of the second roller (3) is in contact with the outer surface of the sliding shaft sleeve (9), a tail plate is arranged on one side of the outer surface of the second roller (3), and meanwhile, the distance between the central axis of the fixed connecting shaft (8) and the central axis of the second roller (3) is equal to the distance between the two circle centers on the fixed clamping plate (4).

4. A coupler draft gear for a locomotive draft link according to claim 3 wherein: the middle part of the outer surface of the fixed connecting shaft (11) is movably sleeved with a reinforcing shaft sleeve (12), the outer surface of the reinforcing shaft sleeve (12) is in contact with the inner wall of the buffering sleeve (1), and the other side of the outer surface of the fixed connecting shaft (11) is movably sleeved with a return spring (13) between the reinforcing shaft sleeve (12) and the buffering piston (10).

5. A coupler draft gear for a locomotive draft link according to claim 4 wherein: one side of the outer surface of the fixed connecting shaft (11) is provided with a sliding groove (14) so as to form movable connection with the locomotive.

6. A coupler draft gear for a locomotive draft link according to claim 1 wherein: one end of the limiting baffle (15) can rotatably extend into the inner cavity of the buffer sleeve (1), one side of the limiting baffle and one side of the inner wall of the through groove (6) are mutually attracted and contacted in an initial state through the magnet, and the limiting baffle and the central axis of the buffer sleeve (1) are kept in a vertical state.