Disassembling and assembling method for pantograph bearing
An installation method and pantograph technology, applied in hand-held tools, manufacturing tools, etc., can solve the problems of difficult disassembly and assembly of pantograph bearings and pin shafts, and quality cannot be guaranteed, so as to ensure the quality of disassembly and assembly and facilitate use Effect
Active Publication Date: 2014-10-01
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 described in further detail below in conjunction with the accompanying drawings.
[0029] Such as figure 1 , figure 2 , Figure 5 with Image 6 As shown, the dismounting method of the pantograph bearing of the present invention is to disassemble the two bearings 2 from the pin shaft 4 by using two half support rings 3, a sleeve 1 and a stopper 5, including the following steps:
[0030] The first step is to put the two semi-support rings 3 on the outside of the pin shaft 4 and clamp them between the upper and lower bearings 2, and then insert the above-mentioned components into the sleeve 1 together. The bottom surfaces of the two semi-support rings 3 Place it on the upper end surface of the sleeve 1, and then place the assembled whole on the operating platform;
[0031] The second step is to place the large diameter end of the block 5 on the pin shaft 4, and insert the small diameter end of the block 5 into the center hole of the pin s...
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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 pantograph bearings. Background technique [0002] During the operation of urban rail vehicles, regular maintenance is required for the vehicles. Generally, the vehicles are used for 4 to 6 years for erection repairs, and for 8 to 10 years for factory repairs. As a key component of the vehicle, the pantograph needs to be overhauled during frame repair and factory repair, and the bearing of the rotating arm must be replaced. Due to the limitation of the bearing structure of the rotating arm, it is difficult to disassemble and assemble the bearing and pin shaft without special tooling, and the quality of disassembly and assembly is not easy to guarantee. The method of the invention can effectively solve the problem, conveniently and quickly complete the disassembly and installation of the pivot arm be...
Claims
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IPC IPC(8): B25B27/067
CPCB25B27/064
Inventor 周云峰黄玮
Owner CHANGCHUN RAILWAY VEHICLE FACILITIES