Hydrostatic test device for air spring bases
An air spring, hydraulic test technology, applied in the direction of applying stable tension/pressure to test the strength of materials, can solve problems such as non-compliance with process standards, affecting driving safety, affecting product quality, etc., to meet the needs of mass passenger car production , to ensure product quality, the effect of simple structure
Active Publication Date: 2014-07-23
CRRC NANJING PUZHEN CO LTD
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Problems solved by technology
[0002] Air spring base (see attached figure 1 ) is an important part in the bogie composition of double-deck passenger cars and generator cars. The production process of the base is formed by machining the castings to form products. During the casting process, trachoma, pores and other factors are prone to affect product quality, thereby affecting driving safety
Therefore, all bases must pass the pressure test before they can be loaded and used. The original air pressure test has a small pressure (6kgf / cm 2 ) does not meet the new process standard (the new standard must do a hydrostatic test 16kgf / cm 2 ) requirements, can not meet the needs of production
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Embodiment Construction
[0011] The air spring base hydrostatic test device of the present embodiment, such as figure 2 As shown, there is a support frame 1, a table top 2 is fixed above the support frame 1, and a disc 3 is arranged above the table top 2. The upper surface of the disc 3 is provided with a groove 4 that matches the arc boss of the air spring base. 4 is embedded with an O-shaped sealing ring (shown in the figure), and the table 2 is equipped with 6 screw compression devices 6 with briquetting blocks 5 evenly distributed around the periphery of the disc 3, and the disc 3 is provided with water inlet and outlet ( Not shown in the figure), the water inlet pipe 7 and the water outlet pipe 8 respectively connected to the water inlet and outlet are drawn from the bottom of the table 2.
[0012] In addition to the above-mentioned embodiments, the present invention can also have other implementations. All technical solutions formed by equivalent replacement or equivalent transformation fall w...
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The invention discloses a hydrostatic test device for air spring bases, which is provided with a support frame, wherein a table is fixed above the support frame, and a disc is arranged above the table; the upper surface of the disc is provided with a groove which is matched with an arc boss of an air spring base, and a seal ring is embedded into the groove; the table is provided with a plurality of screw compression devices which are uniformly arranged around the periphery of the disc and respectively provided with a pressing block; the disc is provided with a water inlet and a water outlet; and a water inlet pipe and a water outlet pipe which are respectively connected with the water inlet and the water outlet are extracted from the underside of the table. The hydrostatic test device disclosed by the invention is skillfully constructed and simple in structure; by using the hydrostatic test device, the defects of an air spring base generated in the processes of casting and machining can be found in time accurately, thereby ensuring the product quality; and the hydrostatic test device is easy to use, improves the efficiency, and satisfies the needs of mass production of passenger-cars.
Description
technical field [0001] The invention relates to a hydraulic test device for an air spring base, which belongs to the technical field of railway vehicle manufacturing technology. Background technique [0002] Air spring base (see attached figure 1 ) is an important part in the bogie composition of double-deck passenger cars and generator cars. The production process of the base is formed by machining the castings to form products. During the casting process, trachoma, pores and other factors are prone to affect product quality, thereby affecting driving safety . Therefore, all bases must pass the pressure test before they can be loaded and used. The original air pressure test has a small pressure (6kgf / cm 2 ) does not meet the new process standard (the new standard must do a hydrostatic test 16kgf / cm 2 ) requirements, can not meet the needs of production. In order to solve the above problems, the process analysis of the air spring base is carried out, and the hydraulic te...
Claims
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IPC IPC(8): G01N3/12
Inventor 于功张立陈伟忠何伯庆刘中良
Owner CRRC NANJING PUZHEN CO LTD