CN212046711U

CN212046711U - U-shaped rail wheel mounting and positioning structure

Info

Publication number: CN212046711U
Application number: CN202020144598.2U
Authority: CN
Inventors: 洪良; 杨燕国; 陈林; 唐胜勇; 王虹; 裴艳
Original assignee: Sichuan Xinzhu Intelligent Engineering Equipment Manufacturing Co ltd
Current assignee: Sichuan Xinzhu Intelligent Engineering Equipment Manufacturing Co ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2020-12-01
Anticipated expiration: 2030-01-22

Abstract

The utility model discloses a U-shaped rail wheel mounting and positioning structure, which comprises a hollow shell spanning two sides of a rail, wherein the shell is connected by a plurality of cross beams; a plurality of U-shaped track wheels and a plurality of radial positioning structures thereof are arranged in each shell; the radial positioning structure comprises a shaft and a key, the shaft horizontally penetrates through the U-shaped track wheels and stretches across two sides of the shell, and the key is arranged in key grooves of the shaft and the U-shaped track wheels; axial positioning structures used for ensuring that the U-shaped track wheel and the shaft are axially static are arranged on two sides of the U-shaped track wheel; the axial positioning structure comprises a distance sleeve, a bearing and a retainer ring. The utility model provides an among the prior art maglev train maintenance in-process drive technical problem that the energy consumption is high, have compact reliable, maintain advantages such as maintenance convenience and simple structure.

Description

U-shaped rail wheel mounting and positioning structure

Technical Field

The utility model relates to an embedded middle-low speed maglev train track technical field especially relates to a U type rail wheel installation location structure.

Background

The medium-low speed magnetic suspension train is one that suspends, guides and pulls by electromagnetic force. The medium-low speed magnetic levitation traffic has the advantages of low noise, low cost, strong climbing capability, small turning radius, short construction period and the like. At present, the medium and low speed magnetic levitation lines which are in passenger carrying operation in China comprise a Changsha magnetic levitation express line and a Beijing magnetic levitation S1 line.

The embedded medium-low speed magnetic levitation traffic system is a brand-new technology in the field of magnetic levitation, and in the aspect of technical performance, indexes such as the highest speed, the acceleration capability, the climbing capability, the turning radius, the energy consumption and the like of the embedded medium-low speed magnetic levitation traffic system are superior to those of the existing urban rail traffic systems such as Changsha magnetic levitation and Beijing magnetic levitation. The running track beam of the embedded medium-low speed maglev train and the train are of an encircling structure, the train cannot be directly placed on the track beam, and a special maintenance platform is required to be matched for ensuring the work of closing the embedded medium-low speed maglev train, transferring the embedded medium-low speed maglev train to a running line after closing the train, maintaining the train and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a U type rail wheel installation location structure to solve the technical problem that the maglev train maintenance in-process drive energy consumption is high among the prior art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a U-shaped rail wheel mounting and positioning structure comprises hollow shells crossing two sides of a rail, wherein the shells are connected through a cross beam;

a plurality of U-shaped track wheels and a plurality of radial positioning structures thereof are arranged in each shell; the radial positioning structure comprises a shaft and a key, the shaft horizontally penetrates through the U-shaped track wheels and stretches across two sides of the shell, and the key is arranged in key grooves of the shaft and the U-shaped track wheels;

axial positioning structures used for ensuring that the U-shaped track wheel and the shaft are axially static are arranged on two sides of the U-shaped track wheel; the axial positioning structure comprises a distance sleeve, a bearing and a retainer ring; the bearing seat is externally provided with a bearing seat, a circumferential annular groove is formed in the bearing seat, a check ring is arranged in the annular groove and clings to the check ring, and the outer ring of the bearing seat is matched with the shell and is arranged on two sides of the shell;

a plurality of holes are formed in the lower side of the shell, and the U-shaped track wheels extend out of the shell through the holes to be in contact with the track.

Optionally or preferably, the housing includes an upper housing and a long plate with one open side, the upper housing is welded to the long plate, and the hole is formed in the long plate.

Alternatively or preferably, the bearing housing outer race is in contact with the housing and the elongate plate.

Optionally or preferably, sealing structures are installed on two sides of the bearing, and each sealing structure comprises an oil seal, a grease nipple and a sealing plate; the oil seal is arranged among the bearing, the distance sleeve and the bearing seat, the grease nozzle is arranged on the bearing seat, and the sealing plate is arranged on the outer end face of the bearing seat.

Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:

the utility model provides a U-shaped rail wheel mounting and positioning structure, the rolling of the U-shaped rail wheel adopts a roller bearing transmission mode, the bearing load is large, the rolling resistance is small, a lubricating oil groove is designed on a bearing seat to provide lubricating oil for a bearing, and the service life of the bearing is long; the U-shaped track wheel is completely and axially positioned by the distance sleeve, the bearing and the check ring, so that the center distance of the track is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an isometric view of a U-shaped rail wheel mounting and positioning structure provided by the present invention;

fig. 2 is a lower isometric view of the U-shaped track wheel mounting and positioning structure provided by the present invention;

fig. 3 is a cross-sectional view of the U-shaped rail wheel mounting and positioning structure provided by the present invention.

In the figure: 1-axis; a 2-bond; 3-U-shaped rail wheels; 4-distance sleeve; 5-oil sealing; 6-a bearing; 7-a retainer ring; 8-grease nipple; 9-closing the plate; 10-a bearing seat; 11-a housing; 111-an upper shell; 112-long plate; 12-beam.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will describe the technical solutions of the present invention in detail. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3:

a U-shaped rail wheel mounting and positioning structure comprises hollow shells 11 crossing two sides of a rail, wherein the shells 11 are connected through 2 cross beams 12;

2U-shaped track wheels 3 and 2 radial positioning structures thereof are arranged in the shell 11; the radial positioning structure comprises a shaft 1 and a key 2, the shaft 1 horizontally penetrates through the U-shaped track wheel 3 and spans on two sides of the shell 11, and the key 2 is arranged in a key 2 groove of the shaft 1 and the U-shaped track wheel 3;

two sides of the U-shaped track wheel 3 are provided with a shaft 1-direction positioning structure for ensuring the U-shaped track wheel 3 and the shaft 1 to be relatively static in the shaft 1 direction; the axial 1-direction positioning structure comprises a distance sleeve 4, a bearing 6 and a retainer ring 7; the distance sleeve 4 is sleeved on the shaft 1 and tightly attached to the U-shaped track wheel 3, the bearing 6 is sleeved on the shaft 1 and tightly attached to the distance sleeve 4, a bearing seat 10 is arranged outside the bearing 6, a circumferential annular groove is formed in the bearing seat 10, a retainer ring 7 is arranged in the annular groove and tightly attached to the retainer ring 7, the outer ring of the bearing seat 10 is matched with the shell 11 and is arranged on two sides of the shell 11, and the size of a track center distance 2160 is ensured;

a plurality of holes are formed in the lower side of the shell 11, and the plurality of U-shaped track wheels 3 extend out of the shell 11 through the holes to be in contact with the tracks; the rolling of U type rail wheel 3 adopts bearing 6 transmission mode, and its load-carrying capacity is big, rolling resistance is little to bearing frame 10 has designed the lubricant bowl and provides lubricating oil for bearing 6, and bearing 6 long service life.

As an alternative embodiment, the housing 11 includes an upper housing 111 and a long plate 112 with one open side, the upper housing 111 is welded to the long plate 112, and the hole is formed in the long plate 112.

As an alternative embodiment, the bearing seat 10 outer race is in contact with the housing 11 and the long plate 112.

As an alternative embodiment, sealing structures are installed on two sides of the bearing 6, and the sealing structures comprise an oil seal 5, a grease nipple 8 and a sealing plate 9; the oil seal 5 is arranged among the bearing 6, the distance sleeve 4 and the bearing seat 10, the grease nipple 8 is arranged on the bearing seat 10, and the seal plate 9 is arranged on the outer end face of the bearing seat 10.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a U type rail wheel installation location structure which characterized in that: the device comprises hollow shells (11) crossing two sides of a track, wherein the shells (11) are connected through a plurality of cross beams (12);

a plurality of U-shaped track wheels (3) and a plurality of radial positioning structures thereof are arranged in each shell (11); the radial positioning structure comprises a shaft (1) and a key (2), the shaft (1) horizontally penetrates through the U-shaped track wheel (3) and stretches across two sides of the shell (11), and the key (2) is arranged in key grooves of the shaft (1) and the U-shaped track wheel (3);

two sides of the U-shaped track wheel (3) are provided with shaft (1) direction positioning structures for ensuring that the U-shaped track wheel (3) and the shaft (1) are static relative to the shaft (1); the axial positioning structure (1) comprises a distance sleeve (4), a bearing (6) and a retainer ring (7); the distance sleeve (4) is sleeved on the shaft (1) and tightly attached to the U-shaped track wheel (3), the bearing (6) is sleeved on the shaft (1) and tightly attached to the distance sleeve (4), a bearing seat (10) is arranged outside the bearing (6), a circumferential annular groove is formed in the bearing seat (10), the check ring (7) is arranged in the annular groove and tightly attached to the check ring (7), and the outer ring of the bearing seat (10) is matched with the shell (11) and is installed on two sides of the shell (11);

a plurality of holes are formed in the lower side of the shell (11), and the U-shaped track wheels (3) extend out of the shell (11) through the holes to be in contact with the track.

2. A U-shaped rail wheel mounting and positioning structure as claimed in claim 1, wherein: the shell (11) comprises an upper shell (111) and a long plate (112) with one open side, the upper shell (111) is welded with the long plate (112), and the hole is formed in the long plate (112).

3. A U-shaped rail wheel mounting and positioning structure as claimed in claim 2, wherein: the outer ring of the bearing seat (10) is in contact with the shell (11) and the long plate (112).

4. A U-shaped rail wheel mounting and positioning structure as claimed in claim 1, wherein: sealing structures are arranged on two sides of the bearing (6), and each sealing structure comprises an oil seal (5), a grease nipple (8) and a sealing plate (9); the oil seal (5) is arranged among the bearing (6), the distance sleeve (4) and the bearing seat (10), the grease nipple (8) is arranged on the bearing seat (10), and the sealing plate (9) is arranged on the outer end face of the bearing seat (10).