Method for installing and adjusting rail vehicle rotating arm type shaft box positioning spring
A technology for positioning springs and rail vehicles, which is applied in the field of installation and adjustment of positioning springs of rotary arm axle boxes of rail vehicles, can solve the problems of large workload, inability to realize the completion of circular spring and rotary arm rubber joints at one time, and cumbersome work, so as to improve work efficiency. Efficiency, the effect of reducing the workload of padding and adjustment, and simplifying the assembly process
Inactive Publication Date: 2012-08-22
CRRC DALIAN CO LTD
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Problems solved by technology
The disadvantage of this method is that the assembly of the circular spring and the rubber joint of the rotating arm cannot be completed at one time, and the rubber joint of the rotating arm must be installed after the completion of the vehicle and when the circular spring is loaded at the working height, resulting in secondary installation work, and the process is cumbersome ;When adjusting the padding, the car body must be erected to unload the round spring before it can be operated with a crowbar, and the erection of the car will bring a series of tedious extra work and a large workload
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[0031] Referring to FIG. 3 , the clamping mechanism for installation is composed of a clamping and positioning threaded sleeve 12 , a clamping bolt 13 and a clamping and positioning sleeve 15 for installation. Before the bogie is assembled, with the help of pressure equipment, the positioning circular springs 1 and 2 of the boom, together with the spring connection seat 7 on the upper side and the rubber damping pad 5 on the lower side, are pre-compressed to the working height under the specified load when the car is empty, and are used for installation. The clamping mechanism holds it against its specified working height. When the bogie is assembled, the compressed circular springs 1, 2, rubber damping pads 5, and spring connecting seats 7 are installed on the bogie together with the clamping mechanism for installation, and the rubber positioning of the bogie arm is installed at the specified working height. node 4. After the whole vehicle is off the vehicle, the rotating ar...
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The invention relates to a method for installing and adjusting a rail vehicle rotating arm type shaft box positioning spring, which comprises the following steps: during the installation, installing a clamping and positioning thread sleeve (12), a clamping bolt (13) and an installing, clamping and positioning sleeve (15), finishing the installation of a shaft box rotary arm under the situation that the specified working heights of circular springs (1) and (2) are kept, disassembling the clamping bolt (13) and the installing, clamping and positioning sleeve (15) after the falling-off of the entire vehicle and connecting an adjusting, clamping and positioning sleeve (16) onto a framework spring seat (9) through threads; and during the adjustment, penetrating the clamping bolt (13) through the adjusting, clamping and positioning sleeve (16) to be propped against the clamping and positioning thread sleeve (12), ensuring that the working heights of the rotary arm positioning circular springs (1) and (2), a spring connecting seat (7) and a rubber vibration reduction pad (5) are kept, jacking a framework at a framework rotary arm positioning node installing seat (10) and arranging a cushion between the shaft box rotary arm (3) and the rubber vibration reduction pad (5). The method is simple, applicable, safe and reliable.
Description
technical field [0001] The invention relates to a method for installing and adjusting a positioning spring of a pivoting arm type axle box of a rail vehicle. Background technique [0002] Referring to Fig. 2, in the existing pivoting arm type axle box positioning structure in the bogie of rail vehicles, the circular springs 1 and 2 are used to realize the vertical elastic positioning of the primary axle box, and the pivoting arm rubber positioning node 4 is used to realize the horizontal positioning of the primary axle box. and longitudinal elastic positioning. This structure requires that when the bogie is assembled, the pivot arm rubber positioning node 4 must be installed on the bogie when the circular spring is compressed to the working height under the empty load. Otherwise, after getting off the car, the circular springs 1 and 2 will produce vertical bearing deflection, and the height will drop, and the frames 9 and 10 sitting on it will also drop thereupon, and the a...
Claims
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IPC IPC(8): B61F5/30
Inventor 刘艳敖建安孙宗琳
Owner CRRC DALIAN CO LTD