Bogie frame and bogie

A bogie and frame technology, applied in the field of bogies, can solve problems such as damage, stress concentration at the joint between the beam and the side beam, and easy cracking at the joint, so as to reduce stress concentration, improve the overall strength, and reduce the overall weight. Effect

Active Publication Date: 2021-08-13
NEWTRY COMPOSITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned frame forms are prone to stress concentration problems at the connection between the beam and the side beam when the vehicle starts, brakes, and turns. With the increase in transportation intensity, the demand for vehicle speed is getting higher and higher. Cracks and breakages are more likely to occur at the place, which seriously affects the safety of train operation.

Method used

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  • Bogie frame and bogie
  • Bogie frame and bogie
  • Bogie frame and bogie

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1 to Figure 4 The bogie frame shown includes: a mandrel member 10, an embedded part 20 and a cladding layer 30;

[0040] The mandrel member 10 is a hollow tubular structure, including two side beam mandrels 11 arranged in parallel and a beam mandrel 12 vertically arranged between the two side beam mandrels 11; figure 1 As shown in , in this embodiment, there are two beam mandrels 12 arranged in parallel and at intervals. It should be pointed out here that the number of beams is set according to the size and strength of the vehicle body, and can also be one or more.

[0041] The embedded parts 20 are embedded in the side beam mandrel 11 and the beam mandrel 12 at intervals; as figure 2 with 3 As shown in , the embedded part 20 is embedded in the side beam mandrel 11 and the beam mandrel 12 when the mandrel member 10 is processed, or it can also be set only in the side beam mandrel 11 or the beam mandrel 12 according to the requirement, and the embedded...

Embodiment 2

[0048] In the first embodiment, in order to ensure the reliability of the connection between the side beam mandrel 11 and the beam mandrel 12, a connector 40 is added, an opening 11c1 is opened in the middle section 11c of the side beam mandrel 11, and a sleeve 12a is sleeved on the beam mandrel 12 , and when the crossbeam mandrel 12 is connected with the connecting joint 42, multiple drawing resin glues are required. On the one hand, this structural form increases the processing procedure and increases the production cost of the bogie frame, and the manual bonding is also unreliable. , the quality of the product is not well guaranteed;

[0049] For this reason, the product in embodiment one has been further improved, as Figure 5 In the second embodiment of this product shown in , in this embodiment, the connecting piece 40 and the sleeve 12a in the first embodiment are omitted, and the upper side beam mandrel 11 and the beam mandrel 12 of the mandrel member 10 are integrated...

Embodiment 3

[0054] In the second embodiment, the structural form of up and down butt joint is adopted, but the contact surface between the core mold member 10 of the upper half and the core mold member 10 of the lower half is relatively small. In order to further strengthen the connection structure between the two, the present invention also A third embodiment is provided, and the second embodiment is improved, such as Image 6 As shown in , the core mold component 10 is an integrated structure, the outer end of the side beam core mold 11 is a sealing structure, and the sides of the core mold component 10 are overlapped. It should be pointed out here that the integral molding structure does not mean that the core mold is made of a whole piece of prepreg, but that the core mold structure is divided into upper and lower parts during specific processing, but the connection method is as follows: Figures 7 to 9 The way of fitting the side walls in the middle, it should be pointed out here tha...

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Abstract

The invention relates to the technical field of bogies, in particular to a bogie frame which comprises a mandrel component, an embedded part and a wrapping layer. The mandrel component is of a hollow tubular structure and comprises two side beam core molds arranged in parallel and a cross beam core mold perpendicularly arranged between the two side beam core molds. The embedded parts are embedded in the side beam core molds and the cross beam core molds at intervals; the wrapping layer integrally wraps the outer layers of the side beam core molds and the cross beam core molds; the core mold component is of a split type structure or an integrally-formed structure, and the split type structure comprises a left-right split type structure and an up-down split type structure. When the split type structure is a left-right split type structure, the split type structure further comprises a connecting piece used for connecting the side beam core mold and the cross beam core mold. The embedded part is embedded in the core mold component of the hollow pipe structure, and the wrapping layer is laid after the core mold component is formed, so that the overall strength of the bogie frame is improved, the stress concentration phenomenon is reduced, the overall weight of the bogie frame is reduced, and the requirement for train acceleration is better met.

Description

technical field [0001] The invention relates to the technical field of bogies, in particular to a bogie frame and a bogie. Background technique [0002] The bogie frame is the skeleton part of the bogie, which is used to install the parts of the bogie, bear and transmit the vertical force and horizontal force, and plays a vital role in the running quality of the vehicle and the transportation safety of passengers. [0003] In related technologies, the bogie frame is mostly an "H-shaped" structure welded by steel members. The steel members are in the form of casting or box girders, including two side beams arranged in parallel and a cross beam vertically connected between the two side beams. , The beam and the side beam are mostly fixed by welding or screwing. [0004] However, the above-mentioned frame forms are prone to stress concentration problems at the connection between the beam and the side beam when the vehicle starts, brakes, and turns. With the increase in transpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D7/00B62D21/02
CPCB62D7/00B62D21/02
Inventor 谈源王瑞周敏杰解恩泽汤娟张驰王小清
Owner NEWTRY COMPOSITE
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