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Tram Passive Hydraulic Braking System

A technology for hydraulic braking and trams, which is applied in the direction of brakes, braking transmission devices, vehicle components, etc., and can solve the problems of various braking modes, large braking force, and small installation space that cannot meet the braking force requirements of trams , to achieve the effect of reliable parking brake, easy maintenance, and avoiding frequent start and stop

Active Publication Date: 2017-07-11
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The hydraulic system can meet the demand characteristics of small installation space and large braking force of the modern tram braking system. The needs of various models

Method used

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  • Tram Passive Hydraulic Braking System
  • Tram Passive Hydraulic Braking System
  • Tram Passive Hydraulic Braking System

Examples

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] The tram passive hydraulic braking system includes an automatic braking hydraulic unit 1, an accumulator 4 and a control system. The automatic braking hydraulic unit 1 includes a hydraulic pump 105, a first oil tank 106, a motor 103, a coupling 104, an overflow The flow valve 107, the first one-way valve 109, the manual release valve 111 and the first filter 108; the hydraulic pump 105 is connected with the motor 103 through the shaft coupling 104, and the outlet of the hydraulic pump 105 has two paths, one of which passes through the overflow valve 107 Connect back to the first oil tank 106, and connect to the first one-way valve 109 through the first filter 108; the overflow valve 107 is used to limit the maximum pressure of the system and play a protective role. The accumulator 4 is installed on the automatic brake hydraulic unit 1 through the accum...

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Abstract

The invention relates to a passive hydraulic pressure braking system for a railroad car. The passive hydraulic pressure braking system comprises an automatic braking hydraulic pressure unit, a passive braking cylinder, an energy accumulator, a manual relieving hydraulic pressure unit and a control system, wherein the braking cylinder adopts a dual-oil chamber braking cylinder. The system can realize the stepless adjustable control of braking pressure, and prevents frequent start and stop of a motor; a dual-oil chamber passive braking cylinder is adopted, so that two independent oil chambers can respectively and separately control the motion of a piston; when the system is powered off, reliable parking and braking can be realized; when an automatic control system is failed, the braking pressure can be relieved manually.

Description

technical field [0001] The invention belongs to the technical field of hydraulic braking, and in particular relates to a hydraulic braking system applied to trams. Background technique [0002] Modern tram is a medium-capacity, novel design, environment-friendly, and resource-saving means of transportation. It has outstanding advantages in terms of humanization, environmental matching, construction period and cost, and noise. It has gained more and more attention in countries all over the world Wider acceptance and application. [0003] As the core component of modern tram, the braking system is the key system to ensure the safe operation and reliable stop of the vehicle. The hydraulic system can meet the demand characteristics of small installation space and large braking force of the modern tram braking system. The needs of various models. There is an urgent market demand for research and development of a hydraulic braking system with small size, high integration, relia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/12B60T13/68
CPCB60T13/12B60T13/686
Inventor 牛玉国苗峰杨磊张笑慰崔雷
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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