Axle press-fitting device and press-fitting method
A press-fitting device and axle technology, applied in metal processing equipment, metal processing, manufacturing tools, etc., can solve the problems of cantilever axle and frame assembly and manufacturing difficulties, small working space inside the frame, and large axle interference.
Active Publication Date: 2020-10-20
CRRC QINGDAO SIFANG CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0004] Due to the large interference of the axle, the complex structure, and the small working space inside the frame, it takes about 500KN force to press the axle in place. The assembly between frames becomes a manufacturing difficulty
Method used
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[0038] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0039] Such as Figure 1 to Figure 4 As shown, an axle press-fitting device provided by the present invention includes a frame 1, an axle 2, a drive system, a press-fit assembly 3 and a positioning guide device.
[0040] Among them, the frame 1 adopts a "day"-shaped structure, which is composed of side beams 1a, cross beams 1b and end beams 1c. There is an axle mounting seat 4 on the side beam 1a, and an axle mounting hole 5 is set on the axle mounting seat 4. The axle 2 is For the hollow axle, the press-fit end 2a of the axle 2 is press-fitted into the axle installation hole 5, and the other end of the axle 2 is a free end 2b, which extends into the inside of the frame 1. The drive system preferably adopts a hydraulic system 6 , the hydraulic cylinder 6 a of the hydraulic system 6 is fixed on the axle mount 4 of the side beam 1 a through a fla...
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The invention relates to an axle press fitting device and a press fitting method. The axle press fitting device comprises a driving system which is fixed on the outer side of a framework, a piston rodof the driving system penetrates through an axle mounting hole and an axle center hole in the framework, the other end of the piston rod is connected with the free end of an axle through a press fitting assembly, and the axle is driven to move and pressed into the axle mounting hole when the piston rod is retracted. The axle press fitting device is simple in overall structure and convenient to operate, the driving system is installed on the outer side of the framework, the axle is driven to move by using retraction motion of the piston rod and pressed into the axle mounting hole, no large installation working space is required, there is no working space limitation, and the problem that the working space inside the framework is small due to the fact that the axle is too long is solved.
Description
technical field [0001] The invention belongs to the technical field of rail vehicle manufacturing, and in particular relates to an axle press-fitting device and a press-fitting method. Background technique [0002] For the straddle-type monorail bogie, there are currently two main structural forms, one is that each bogie is equipped with two axles, and each axle is equipped with two traveling wheels; the other is that each bogie The frame is equipped with one axle, and each axle is equipped with a single-axle bogie with two traveling wheels. Regardless of the two-axle or single-axle, the straddle bogie needs to be equipped with guide wheels and stabilizing wheels. There are generally four guide wheels, two on both sides of the track beam, clamping the upper half of the track beam. There are two or four stabilizing wheels, clamping the lower half of the track beam. The guide wheels, stabilizing wheels and running wheels hug the track beam from three directions together to ...
Claims
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IPC IPC(8): B23P19/027
CPCB23P19/027
Inventor 邵松涛蔡卫星牛富杰徐锋朱崇飞
Owner CRRC QINGDAO SIFANG CO LTD