Train height adjusting device and train height adjusting method
A height adjustment device and height adjustment technology, which are applied in the lateral relative movement between the underframe and the bogie, transportation and packaging, railway car body parts, etc. The effect of good comfort
Active Publication Date: 2019-01-15
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
[0003] The main purpose of the present invention is to provide a train height adjustment device and a train height adjustment method to solve the problem in the prior art that the actuating device for train height adjustment affects the damping effect of the secondary spring
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[0022] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0023] As described in the background technology, in some existing technologies, the actuating piston device is integrated inside the secondary steel spring and connected in parallel with it. When the actuator is locked, the steel spring will not vibrate even if passengers get on and off, but when it is running on the line, the inside of the actuator is filled with hydraulic oil, which will generate a certain damping force. Normal damping action of the spring.
[0024] To solve the above problems, see Figure 1 to Figure 3 As shown, the present invention provides a train height adjustment device, wherein the train includes a car, a bogie arranged at the bottom of the car, a bolster and a fram...
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The invention provides a train height adjusting device and a train height adjusting method. The train height adjusting device comprises an actuating piston including a piston rod and a piston pad having an adjustment position abutting against a stop flange and an avoidance position separated from the stop flange; and an oil injection device communicating with a lower chamber to inject hydraulic oil into the lower chamber, thereby switching the piston pad from the avoidance position to the adjustment position, thereby retracting the piston rod into the inner chamber and lowering the vehicle compartment. When the actuating piston is not required to adjust the height of the compartment, the stop flange of the piston rod and the piston pad are separated from each other for concession, and theresistance caused by the hydraulic oil located in the inner cavity is very small, so that the normal vibration damping effect of a secondary spring is not affected, and the passenger has good comfortduring the riding process.
Description
technical field [0001] The invention relates to the technical field of train height adjustment equipment, in particular to a train height adjustment device and a train height adjustment method. Background technique [0002] Some subway platforms have inconsistent heights. For the convenience of passengers getting on and off, it is necessary to adjust the height of the carriage to adjust the height of the floor so that the height of the floor is consistent with the height of the platform. In order to make passengers more comfortable when getting on and off the subway, a height adjustment device will be added in the subway. When the subway train enters the station, the height of the carriage will be automatically lowered so that the floor of the carriage is consistent with the height of the platform. In the prior art, the secondary steel spring of the height adjustment device is connected in series with the actuator. Since the secondary steel spring is not subject to any const...
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IPC IPC(8): B61F5/04B61F5/12B61F5/52
CPCB61F5/04B61F5/12B61F5/52
Inventor 孔海朋曹晓宁王旭周锦铭张月军
Owner CRRC QINGDAO SIFANG CO LTD