CN218431253U

CN218431253U - Center pin of bogie

Info

Publication number: CN218431253U
Application number: CN202222927724.3U
Authority: CN
Inventors: 张光才; 祝笈; 廖军; 罗汉江; 吴畅; 冯成礼; 张锐; 王云贵; 敬宣萱; 袁杰
Original assignee: CRRC Meishan Co Ltd
Current assignee: CRRC Meishan Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-02-03
Anticipated expiration: 2032-11-03

Abstract

A center pin of a bogie comprises a center pin body, a transverse bolt and an opening pin; the upper end part and the lower end part of the central pin body are respectively provided with a transverse through hole, a transverse bolt penetrates through the transverse through holes at the two ends of the central pin body, one end of the transverse bolt is larger than the transverse through hole at the end part of the central pin body, the other end of the transverse bolt is provided with a small through hole, and a cotter pin is arranged in the small through hole; the length of the transverse bolt is larger than the diameters of the mounting holes of the car body and the center pin of the bogie. By adopting the center pin, the separation of the bogie and the vehicle body is guaranteed when the vehicle encounters severe working conditions through the two transverse bolts and the split pin, the integral hoisting function of the bogie along with the vehicle body is considered, the hoisting efficiency is improved, and the center pin is simple in structure, convenient to operate and high in safety and reliability.

Description

Center pin of bogie

The technical field is as follows:

the utility model belongs to the technical field of the rail wagon vehicle is made, especially, relate to rail wagon vehicle bogie technical field, specifically speaking is a bogie core pin.

Background art:

the body of a railway wagon is usually supported by two bogies, the body is connected with the lower center plates of the two bogies through two upper center plates on a center sill, and the diameter of the upper center plate is smaller than that surrounded by the flanges of the lower center plates. Under normal conditions, the upper center plate can be always kept in the lower center plate under the action of the gravity of the vehicle body. However, in special situations, for example, when the vehicle body is subjected to severe impact or derailment, the upper center plate and the lower center plate of the vehicle body are easy to separate, and in order to prevent vehicle operation accidents caused by the separation of the upper center plate and the lower center plate, center holes with diameters of about 50mm are usually designed in the centers of the upper center plate of the vehicle body and the lower center plate of the bogie, and center pins are installed in the center holes. One end of the center pin is inserted into the inner part of the middle beam of the vehicle body from the center hole of the upper center plate, and the other end of the center pin is inserted into the swing bolster from the center hole of the lower center plate of the bogie. If special circumstances are met, the upper center plate of the vehicle body and the lower center plate of the bogie are separated instantly, and the upper center plate can generally fall back into the lower center plate again under the guidance of the center pin as long as the separation distance of the upper center plate of the vehicle body and the lower center plate of the bogie is less than the length of the center pin exceeding the lower center plate, so that the running safety of the vehicle is ensured. However, when the center pin of the existing structure meets extreme conditions, such as vehicle overturn, the bogie is still easy to separate from the vehicle body, thereby affecting the operation safety and causing inconvenience of on-site rescue; in addition, when the bogie is transported and repaired, the whole bogie needs to be hoisted, and if the hoisting point is arranged on the bogie body, the central pin of the existing structure cannot hoist the whole bogie along with the bogie body.

The utility model has the following contents:

the utility model discloses according to the not enough of current railway freight car bogie king pin function, provide the king pin of a new construction to solve the connection problem of current automobile body and bogie.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the utility model provides a center pin of a bogie, which comprises a center pin body, a transverse bolt and an opening pin; the upper end part and the lower end part of the central pin body are respectively provided with a transverse through hole, a transverse bolt penetrates through the transverse through holes at the two ends of the central pin body, one end of the transverse bolt is larger than the transverse through hole at the end part of the central pin body, the other end of the transverse bolt is provided with a small through hole, and a cotter pin is arranged in the small through hole.

The length of the transverse bolt is larger than the diameters of the mounting holes of the car body and the steering frame center pin.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. adopt the utility model discloses, railway freight car vehicle operation if meet extreme condition, when the vehicle topples, has realized guaranteeing that bogie and automobile body do not separate when the vehicle meets abominable operating mode through two horizontal bolts and the split pin of installing on the central round pin body.

2. Adopt the utility model discloses, need hoist the whole vehicle when transportation, repair, if hoist and mount point on the automobile body, can realize the bogie function of automobile body integral hoisting, improved the efficiency of hoist and mount.

3. The utility model has the advantages of being simple in structure and convenient in operation, fail safe nature is high.

Description of the drawings:

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

fig. 2 is a schematic structural view of the center pin body of the present invention;

fig. 3 is a schematic structural view of the transverse latch of the present invention;

fig. 4 is a schematic view of the usage state of the present invention.

Reference numbers in the figures:

1-central pin body, 2-transverse pin, 3-split pin, 4-lower central disc, 5-upper central disc and 6-middle beam.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a center pin for a bogie, which includes a center pin body 1, a transverse pin 2, and a split pin 3. The upper end and the lower end of the central pin body 1 are respectively provided with a transverse through hole, a transverse bolt 2 is arranged in the transverse through hole, the transverse through holes at the two ends of the central pin body 1 penetrate through the transverse through holes at the two ends of the central pin body 2, one end of the transverse bolt 2 is larger than the transverse through hole at the end of the central pin body 1, the other end of the transverse bolt is provided with a small through hole, a split pin 3 is arranged in the small through hole, the transverse bolt 2 can not withdraw from the transverse through hole of the central pin body 1 after the transverse bolt 2 is completely arranged, and the central pin is caused to fail in function. The length of the transverse bolt 2 is larger than the diameters of the mounting holes of the center pin of the car body and the bogie.

After the vehicle body and the bogie are formed, one end of a center pin body 1 is inserted into a bogie swing bolster through a center hole of a lower center plate 4 of the bogie, and the other end of the center pin body is inserted into a middle beam 6 of the vehicle body through a center hole of an upper center plate 5 of the vehicle body. Then, transverse bolts 2 are arranged in transverse through holes at two ends of the central pin body 1, and cotter pins 3 are arranged on the transverse bolts 2. Since the length of the cross plug 2 is greater than the diameter of the center pin installation hole of the bogie and the body center sill 6, the center pin prevents the body from being separated from the bogie under the blocking of the cross plug 2 and the connection of the center pin body 1. The body and the bogie are again easily separated after the cotter pin 3 and the cross bolt 2 are removed.

Claims

1. A bogie king pin, characterized by: the center pin comprises a center pin body (1), a transverse bolt (2) and a split pin (3); the upper end and the lower end of the central pin body (1) are respectively provided with a transverse through hole, the transverse bolts (2) penetrate through the transverse through holes at the two ends of the central pin body (1), one end of each transverse bolt (2) is larger than the transverse through hole at the end of the central pin body (1), the other end of each transverse bolt is provided with a small through hole, and a split pin (3) is arranged in each small through hole.

2. The kingpin of a bogie as defined in claim 1, wherein: the length of the transverse bolt (2) is larger than the diameters of the car body and the bogie center pin mounting hole.