Welding type brake beam and bogie foundation brake device with same
A braking beam and welding technology, applied in the field of braking beams, can solve the problems of increasing the difficulty of manufacturing quality control, asynchronous deformation of connecting parts, reducing the reliability of braking beams, etc., achieving simple structure, low manufacturing cost, adaptability powerful effect
Inactive Publication Date: 2021-02-26
CRRC YANGTZE CO LTD
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Problems solved by technology
The existing solution is to carve a notch on the beam frame to avoid the rods of the foundation brake device and avoid the interference of other brake beams, but this is easy to form a sharp point on the beam frame, resulting in stress concentration and reducing the braking force. The reliability of the beam also increases the difficulty of manufacturing quality control
[0005] In addition, the existing brake beam pillar connection basically adopts the split clamp method, there are many parts, and the deformation of the connecting parts is not synchronized, which may easily cause the connecting fasteners to be sheared and broken, and the connection reliability is poor
At the same time, there is no reinforcing structure at the bend at the root of the bow-shaped rod, which is easy to break during use
Method used
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] Such as Figure 1-7 As shown, the welded brake beam designed by the present invention includes a beam frame 10 , a pillar 20 installed at a vertical position in the beam frame 10 , and two brake shoe holders 30 installed at both ends of the beam frame 10 . in:
[0033] Such as figure 2 As shown, the beam frame 10 is welded into an arched structure by string beams 11 and arched beams 12 . String girder 11 adopts angle steel, including transverse flange 11a and vertical flange 11b protruding to the lower side of transverse flange 11a (up and down in the present invention refers to the orientation when used). The vertical flange 11b has a greater width than the transverse flange 11a in order to increase the bending stiffness.
[0034] The arched beam 12 is made of round steel, and its two ends are welded and fixed on the oute...
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The invention discloses a welding type brake beam which comprises a beam frame, a supporting column installed in the middle of the beam frame and two brake heads installed at the two ends of the beamframe. The beam frame is of an arch-shaped structure formed by installing and welding a chord beam and an arch-shaped beam. The chord beam comprises a transverse flange and a vertical flange extendingtowards the lower side of the transverse flange; the chord beam and the arch-shaped beam are respectively of a structure with a concave middle part; the chord beam is of a structure with the middle portion concave outwards. The invention further discloses a bogie foundation brake device with the welding type brake beam. The welding type brake beam is simple in structure, reasonable in design, convenient to maintain, high in reliability, high in adaptability and capable of meeting the adaptability requirement of the multi-gauge bogie.
Description
technical field [0001] The invention relates to a brake beam, in particular to a welded brake beam and a bogie foundation brake device with the same. Background technique [0002] At present, the domestic railway freight car bogie foundation brake device generally adopts the traditional lever brake device, and also uses the bogie integrated brake device at the same time. Regardless of the type of foundation braking device, the brake beam will be used. The brake beam is the core component of the foundation braking device and the main force-bearing component in the foundation braking device. Its reliability has attracted much attention. [0003] Existing brake beams are mainly combined brake beams, such as L-B type and L-C type brake beams. This type of combined brake beam adopts the process of integral hot rolling or integral heat fitting. The manufacturing process is complicated, the cost is high, and the production cycle is long. It is not conducive to rapid application on...
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IPC IPC(8): B61H13/36
CPCB61H13/36
Inventor 曾德凉涂智文张金发陈祖顺王丽娜陈瑞韩亚培刘幻云
Owner CRRC YANGTZE CO LTD