Automatic double heading valve main position and alternate position changeover device and changeover method
A technology of automatic switching and double-connection valves, which is applied in the direction of brake transmission, brakes, brake components, etc., and can solve problems such as slowness, locomotive wheel relaxation, and non-braking relief.
Active Publication Date: 2013-08-14
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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Problems solved by technology
[0002] At present, when the locomotive is reconnected, the switch button of the reconnection valve is manually operated at the local position or the supplementary position, and the driver sometimes forgets to switch the reconnection valve to the corresponding position, causing problems such as locomotive wheel slack, failure to brake, and slow relief.
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[0016] Such as figure 1 As shown, the gas circuit of an embodiment of the present invention, the gas circuit of the control section and the non-control section form a symmetrical structure, the gas circuit includes a reconnection valve, a distribution valve and intermediate connecting parts, and the distribution valve passes through the brake cylinder pipe e, the action pipe c and The reconnection valve is connected, the reconnection valve is connected with the intermediate connection part through the average pipe d and the main air connection pipe a, the main air connection pipe a between the reconnection valve and the intermediate connection part is connected with the plug f, and the control section is reconnected The valve signal hole b is connected with the first electric interlock plug door 4, pressure sensor 3, two-position three-way electropneumatic valve 2, and the second electric interlock plug door 1 through the main air joint pipe a in sequence; figure 2 As shown, ...
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The invention discloses an automatic double heading valve main position and alternate position changeover device and a changeover method. A two-position three-way electropneumatic valve is additionally mounted on a compressed air pipeline selected from a main air linkage pipe, an electric interlocking plug door is mounted in front of the electropneumatic valve, another electric interlocking plug door is connected with a signal hole of a double heading valve, and a pressure sensor is added in the rear of the electropneumatic valve. Mechanical interfaces of the two-position three-way electropneumatic valve, the pressure sensor and the electric interlocking plug doors are connected with the main air linkage pipe, an electrical interface of the two-position three-way electropneumatic valve isconnected with an output power source of a key switch, and electrical interfaces of the pressure sensor and the electric interlocking plug doors are connected with a power source and a control unit. Compared with the prior art, the device has the advantages that a manual changeover method is modified into the automatic changeover method, a non-control joint double heading valve can be automatically changed into an alternate position when a control joint key switch is positioned at an 'on' position, and a control joint double heading valve is in the main position. Furthermore, the problems of relaxation, failure in brake on and slowness in remission and the like of traction wheels of locomotives caused by dislocation of the main position and the alternate position of the double heading valve.
Description
technical field [0001] The invention relates to the field of rail transit braking, in particular to an automatic switching device and switching method for a main position and a supplementary position of a heavy-duty valve. Background technique [0002] At present, when the locomotive is reconnected, the switch button of the reconnection valve is manually operated at the local position or the supplementary position, and the driver sometimes forgets to switch the reconnection valve to the corresponding position, causing problems such as locomotive wheel slack, failure to brake, and slow relief. [0003] At present, the air path of the main position of the reconnection valve and the automatic conversion device of the supplementary position is divided into the control section and the non-control section. The control section includes the reconnection valve, the distribution valve and the intermediate connecting parts. The joint valve is connected, the double valve is connected wi...
Claims
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IPC IPC(8): B60T13/66B60T15/36
Inventor 张娟赵忠胜毛金虎黄金虎刘锋
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD