Disassembly and installation method of pantograph bearing
An installation method and pantograph technology, applied in hand-held tools, manufacturing tools, etc., can solve the problems of unguaranteed quality, difficult disassembly and assembly of pantograph bearings and pin shafts, etc., and achieve the quality of disassembly and assembly and convenient use Effect
Active Publication Date: 2016-01-20
CHANGCHUN RAILWAY VEHICLE FACILITIES
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Problems solved by technology
[0003] In order to solve the technical problems existing in the prior art, such as the difficulty in disassembling and assembling the pantograph bearing and the pin shaft, and the inability to guarantee the quality, the present invention provides a method for disassembling and installing the pantograph bearing
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] like figure 1 , figure 2 , Figure 5 and Image 6 As shown, the disassembly method of the pantograph bearing of the present invention is to use two half support rings 3, a sleeve 1 and a stopper 5 to disassemble the two bearings 2 from the pin shaft 4, including the following steps:
[0030] The first step is to put the two half support rings 3 on the outside of the pin shaft 4, and clamp them between the upper and lower bearings 2, and then put the two bearings 2, the two half support rings 3 and the pin shaft 4 into a whole. The structure is inserted into the sleeve 1 together, the bottom surfaces of the two half support rings 3 are placed on the upper end surface of the sleeve 1, and then the assembled whole is placed on the operating platform;
[0031] The second step, put the large diameter end of the block 5 on the pin shaft 4, and insert th...
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The invention discloses a disassembling and assembling method for a pantograph bearing and relates to the technical field of pantograph overhauling for urban rail vehicles. According to the disassembling and assembling method for the pantograph bearing, a bearing is separated from a pin shaft through a sleeve barrel, a baffle block and two semi-support rings, wherein the sleeve barrel plays roles of supporting and providing a relative displacement space when disassembling the bearing, the baffle block plays roles of uniformly transmitting pressure and preventing the end of the pin shaft from upsetting, and the two semi-support rings are used with each other to support the bearing and exert pressure to separate the bearing from the pin shaft; the bearing and pin shaft are assembled through the sleeve barrel, a guide rod and a support ring, wherein the sleeve barrel and the support ring play a role of supporting in the assembly process, and the guide rod plays roles of uniformly transmitting pressure and guiding to exert pressure to assemble the bearing and pin shaft. The disassembling and assembling method for the pantograph bearing is capable of solving the problems that the pantograph bearing and pin shaft are difficult to disassemble and assemble, the disassembling and assembling quality cannot be guaranteed and the like, convenient and fast to use, safe and reliable and capable of guaranteeing the bearing disassembling and assembling quality.
Description
technical field [0001] The invention relates to the technical field of pantograph maintenance for urban rail vehicles, in particular to a method for disassembling and installing a pantograph bearing. Background technique [0002] During the operation of urban rail vehicles, regular maintenance of the vehicles is required. Generally, the vehicles are used for 4 to 6 years for frame maintenance, and 8 to 10 years for factory maintenance. As a key component of the vehicle, the pantograph needs to be overhauled during the frame repair and factory repair process, and the slewing arm bearing should be replaced. Due to the limitation of the bearing structure of the swivel arm, it is difficult to disassemble and assemble the bearing and the pin without special tooling, and the quality of disassembly and assembly is not easy to ensure. This problem can be effectively solved by the method of the invention, the disassembly and installation of the swivel arm bearing can be completed co...
Claims
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IPC IPC(8): B25B27/067
CPCB25B27/064
Inventor 周云峰黄玮
Owner CHANGCHUN RAILWAY VEHICLE FACILITIES