CN219056248U

CN219056248U - Axle box for urban rail vehicle

Info

Publication number: CN219056248U
Application number: CN202320270480.8U
Authority: CN
Inventors: 李珺; 安国兵; 张旭; 郭振凯; 王浩楠; 张廷婷
Original assignee: Urumqi CRRC Rail Transit Equipment Co Ltd
Current assignee: Urumqi CRRC Rail Transit Equipment Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-05-23
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses an axle box for urban rail vehicles, which comprises a bearing seat, wherein the front part and the rear part of a bearing matching hole of the bearing seat are respectively connected with a front end cover and a rear end cover in a flange manner, the top of the outer side wall of the front end cover is provided with a mounting frame for shock absorption and damping assembly, the left side and the right side of the bearing seat are respectively provided with a rib frame, and the bottom of the bearing seat is provided with a supporting plate. This axle box for urban rail vehicle, through the axle box split with traditional integral casting formula structure for bearing frame and two adjustable seats that supply two buffer spring installations respectively, utilize slidable mounting to cooperate limit baffle's spacing on the rib frame adjustable seat, can realize the position control of adjustable seat, can form two adjustable seats and be symmetric distribution or asymmetric distribution to can adapt to the installation condition of two buffer spring different positions, very big promotion the universality of axle box has improved market competition.

Description

Axle box for urban rail vehicle

Technical Field

The utility model relates to the technical field of rail transit, in particular to an axle box for urban rail vehicles.

Background

CN202935361U discloses a pull rod-free axle box for a light rail. In order to develop an axle box body which is suitable for 80km/h speed level and can pass through a line with a curve radius of R30m for hinging a light rail vehicle bogie, the pull rod-free axle box body for the light rail comprises an axle box body, a bearing matching hole is formed in the center of the axle box body, a plurality of axial end cover threaded holes are formed in the periphery of the bearing matching hole, a spring seat is arranged at the left end and the right end of the axle box body, and a spring seat flange is circumferentially arranged at each spring seat; the top of axle box body is equipped with a plurality of installation screw thread blind hole archs, the base both sides of axle box body have the cavity, have the strengthening rib in this cavity. The axle box body is simple, compact, light and handy in structure, easy to detach, convenient to cast, high in practicability, safe, reliable and attractive, capable of adapting to users and market demands in a larger range, capable of enhancing the competitiveness of the light rail market and easy to popularize and apply.

CN207826255U discloses an axle box for urban rail vehicles, the axle box is holistic cast structure, the axle box centre bore is used for installing the bearing, axle box left side fixed connection is passed through bent arm and single riser to the centre bore of axle box, the left upper portion of axle box is equipped with the plane that is used for installing damping pad and round steel spring, the left lower place ahead of axle box is equipped with the shock absorber seat that is used for installing vertical shock absorber, the centre bore passes through bent arm and two riser and is connected with the axle box right side, axle box right side upper portion is equipped with the plane that is used for installing the rubber joint. The axle box body realizes the combined use of the rubber joint and the round steel spring, ensures that the steel spring is biased when the central connecting line of the rubber joint steel spring passes through the axle center, provides larger static deflection for a first system, optimizes the first suspension parameter, greatly reduces the height of the bogie, and has simple structure, convenient use and obvious effect.

The existing axle box body for urban rail vehicles is generally in an integrally cast structure, in a specific structure, two spring seats are basically symmetrical left and right, such as the CN202935361U, and two spring seats are also asymmetrical left and right, such as the CN207826255U, so that an universal axle box body is lacking currently so as to adapt to different installation conditions of the spring seats.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an axle box for urban rail vehicles, which solves the problem that the existing axle box lacks universality so as to be suitable for different installation conditions of spring seats.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the axle box body for the urban rail vehicle comprises a bearing seat, wherein the front part and the rear part of a bearing matching hole of the bearing seat are respectively connected with a front end cover and a rear end cover in a flange manner, the top of the outer side wall of the front end cover is provided with a mounting rack for damping assembly, the left side and the right side of the bearing seat are respectively provided with a rib frame, the bottom of the bearing seat is provided with a supporting plate, the two rib frames are respectively and slidably connected with an adjustable seat for mounting a buffer spring, the outer sides of the two adjustable seats are respectively provided with a limit baffle,

the adjustable seat comprises a supporting seat, a chute which is in sliding fit with the rib frame is arranged on the inner side of the supporting seat, an inclined edge is arranged on the outer side of the supporting seat, a gasket is arranged on the top of the supporting seat through four first bolts which are distributed in a rectangular array,

the two limit baffles are mounted on the supporting plate through two second bolts and are respectively matched with the two inclined edges in a pasting mode, and two first strip-shaped holes which are parallel to each other and matched with the second bolts are formed in the left side and the right side of the supporting plate.

Preferably, the bearing seat and the two rib frames are formed by integral casting, two weight reducing cavities are respectively formed in the front side and the rear side of the lower part of the bearing seat, the supporting plate is fixedly connected with the bearing seat through four third bolts distributed in a rectangular array, and the four third bolts are equally divided into two groups and respectively penetrate through the two weight reducing cavities.

Preferably, a first sinking groove for sliding adaptation of the gasket is formed in the top of the supporting seat, and two second strip-shaped holes which are parallel to each other and are matched with the first bolt are formed in the first sinking groove.

Preferably, a second sinking groove for embedding the end part of the buffer spring is formed in the top of the liner.

Preferably, the device further comprises two split bolts penetrating through and installed between the rib frame and the limiting baffle plate on the same side, and the straight lines of the axes of the two split bolts are located in the same horizontal plane.

Advantageous effects

The utility model provides an axle box for urban rail vehicles. Compared with the prior art, the method has the following beneficial effects:

this axle box for urban rail vehicle, through the axle box split with traditional integral casting formula structure for bearing frame and two adjustable seats that supply two buffer spring installations respectively, utilize slidable mounting to cooperate limit baffle's spacing on the rib frame adjustable seat, can realize the position control of adjustable seat, can form two adjustable seats and be symmetric distribution or asymmetric distribution to can adapt to the installation condition of two buffer spring different positions, very big promotion the universality of axle box has improved market competition.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the mounting structure of the bearing housing and the pallet of the present utility model;

FIG. 3 is a schematic view of the mounting structure of the adjustable seat and rib cage of the present utility model;

FIG. 4 is a schematic view of the structure of the adjustable seat of the present utility model;

FIG. 5 is a schematic view of the mounting structure of the split bolt of the present utility model;

in the figure: 1. a bearing seat; 2. a front end cover; 3. a rear end cover; 4. a mounting frame; 5. a rib frame; 6. a supporting plate; 7. an adjustable seat; 8. a limit baffle; 9. a support base; 10. a chute; 11. inclined edges; 12. a first bolt; 13. a gasket; 14. a second bolt; 15. a first bar-shaped hole; 16. a weight-reducing cavity; 17. a third bolt; 18. a first sink; 19. a second bar-shaped hole; 20. a second sink tank; 21. and (5) a split bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a city rail axle box for vehicle, including bearing frame 1, the front portion and the rear portion of bearing frame 1 bearing fit hole department do not flange joint have front end housing 2 and rear end housing 3, the top of front end housing 2 lateral wall is equipped with the mounting bracket 4 that supplies shock attenuation damping assembly, the bearing frame 1 left and right both sides all are equipped with rib frame 5 and are equipped with layer board 6 in the bottom of bearing frame 1, all sliding connection has the adjustable seat 7 that supplies buffer spring to install on two rib frames 5, the outside of two adjustable seats 7 all is equipped with limit baffle 8, adjustable seat 7 includes supporting seat 9, the inboard of supporting seat 9 is equipped with the spout 10 with rib frame 5 sliding fit, the outside of supporting seat 9 is equipped with incline limit 11, liner 13 is installed through four first bolts 12 that are rectangular array distribution to the top of supporting seat 9, two limit baffle 8 all install on layer board 6 through two second bolts 14 and paste suitable the joining in marriage respectively with two incline limit 11, two first holes 15 that are parallel to each other and with second bolt 14 looks adaptation are all offered to the left and right both sides of layer board 6.

Based on the arrangement of the structure, the axle box body for the urban rail vehicle consists of a bearing seat 1, a supporting plate 6, two adjustable seats 7 and two limit baffles 8, wherein bearing matching holes of the bearing seat 1 are matched with a front end cover 2 and a rear end cover 3 which are respectively arranged at the front part and the rear part of the axle box body in a flange manner to form a sealing cavity for bearing installation, a mounting frame 4 for assembling damping ends of the damping is arranged on the front end cover 2, the damping of a wheel set can be realized, the bearing seat 1 is respectively provided with two adjustable seats 7 in a sliding manner through two rib frames 5 respectively arranged at two sides of the bearing seat 1, and is matched with two limit baffles 8 which can be adjusted on the supporting plate 6, so that the position adjustment of the two adjustable seats 7 can be realized to adapt to different installation conditions of two damping springs, the two adjustable seats 7 are respectively used for installing two damping springs which are distributed along the vertical direction, further ensures the damping effect of the wheel set, specifically, in the installation process, an operator can push the limiting baffle plate 8 to adjust the position on the supporting plate 6 by unscrewing the second bolt 14, under the limiting effect of the limiting baffle plate 8, the position of the adjustable seat 7 can be adjusted and limited by matching with the elasticity of the buffer springs, and then the second bolt 14 is screwed down to finish the position adjustment of the adjustable seat 7. The universality of the axle box body is greatly improved, and the market competitiveness is improved.

Further, the bearing seat 1 and the two rib frames 5 are formed by integral casting, two weight reducing cavities 16 are respectively formed in the front side and the rear side of the lower portion of the bearing seat 1, the supporting plate 6 is fixedly connected with the bearing seat 1 through four third bolts 17 distributed in a rectangular array, and the four third bolts 17 are evenly divided into two groups and respectively penetrate through the two weight reducing cavities 16. Wherein, the layer board 6 and bearing frame 1 separation setting can be convenient for two adjustable seat 7 respectively in the assembly operation of two rib frame 5 bottoms, and the design of two weight-reduction chamber 16 has saved the manufacturing material on the one hand, on the other hand has provided mounting structure for four third bolts 17.

Further, a first sinking groove 18 for sliding fit of the gasket 13 is formed at the top of the supporting seat 9, and two second bar-shaped holes 19 parallel to each other and adapted to the first bolt 12 are formed in the first sinking groove 18. Wherein, by means of two second bar-shaped holes 19 parallel to each other, the cushion 13 can be adjusted in the first sinking groove 18 in the lateral direction, so that the stable installation of the bottom end of the buffer spring can be further ensured, and the first sinking groove 18 is used for limiting the cushion 13.

Further, a second sinking groove 20 for embedding the end of the buffer spring is formed in the top of the liner 13. The pad 13 is used as a direct contact structure installed at the bottom end of the buffer spring, and a second sinking groove 20 matched with the outer diameter of the buffer spring is formed on the pad for embedding and limiting the bottom end of the buffer spring.

Further, the two split bolts 21 are installed between the rib frame 5 and the limit baffle 8 on the same side in a penetrating way, and the straight lines of the axes of the two split bolts 21 are located in the same horizontal plane. The limit baffle 8 is fixed on the supporting plate 6 through two second bolts 14 to realize the supporting limit of the adjustable seat 7, and preferably, the limit baffle 8 can be further lifted through the two split bolts 21, so that the position of the adjustable seat 7 after being adjusted is firm and stable.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An axle box for urban rail vehicles, characterized in that: the damping device comprises a bearing seat (1), wherein a front end cover (2) and a rear end cover (3) are respectively connected with the front part and the rear part of a bearing matching hole of the bearing seat (1) in a flange manner, a mounting frame (4) for damping assembly is arranged at the top of the outer side wall of the front end cover (2), rib frames (5) are arranged on the left side and the right side of the bearing seat (1) and a supporting plate (6) is arranged at the bottom of the bearing seat (1), two adjustable seats (7) for installing a buffer spring are connected to the rib frames (5) in a sliding manner, and limit baffles (8) are arranged on the outer sides of the two adjustable seats (7);

the adjustable seat (7) comprises a supporting seat (9), a sliding groove (10) which is in sliding fit with the rib frame (5) is formed in the inner side of the supporting seat (9), an inclined edge (11) is formed in the outer side of the supporting seat (9), and a gasket (13) is arranged at the top of the supporting seat (9) through four first bolts (12) distributed in a rectangular array;

two limit baffle (8) are all installed on layer board (6) through two second bolts (14) and respectively with two slope limit (11) laminating adaptations, two first bar hole (15) that are parallel to each other and with second bolt (14) looks adaptation have all been seted up to the left and right both sides of layer board (6).

2. The axle housing for urban rail vehicles according to claim 1, wherein: the bearing seat (1) and the two rib frames (5) are formed by integral casting, two weight reducing cavities (16) are respectively formed in the front side and the rear side of the lower portion of the bearing seat (1), the supporting plate (6) is fixedly connected with the bearing seat (1) through four third bolts (17) distributed in a rectangular array, and the four third bolts (17) are equally divided into two groups and respectively penetrate through the two weight reducing cavities (16).

3. The axle housing for urban rail vehicles according to claim 1, wherein: the top of supporting seat (9) has offered first heavy groove (18) that supplies liner (13) slip adaptation, offer two second bar hole (19) that are parallel to each other and all adapt with first bolt (12) in first heavy groove (18).

4. The axle housing for urban rail vehicles according to claim 1, wherein: the top of the liner (13) is provided with a second sinking groove (20) for embedding the end part of the buffer spring.

5. The axle housing for urban rail vehicles according to claim 1, wherein: and also comprises

Two split bolts (21) penetrating and installed between the rib frame (5) and the limit baffle (8) on the same side,

the straight lines of the axes of the two split bolts (21) are positioned in the same horizontal plane.