Tooth strap, single shaft and guide rod, and groove-shaped cam combined spatial mechanism of sliding plug door

Abstract

The invention relates to a tooth strap, single shaft and guide rod, and groove-shaped cam combined spatial mechanism of a sliding plug door, which relates to an open and close mechanism of sliding plug hermetization of the sliding plug door of a vehicle, in particular to the tooth strap, single shaft and guide rod, and groove-shaped cam combined spatial mechanism of the sliding plug door of a high-speed railway vehicle and other railway vehicles. The tooth strap, single shaft and guide rod, and groove-shaped cam combined spatial mechanism comprises a door frame, a motor, a driving tooth gear, a tooth strap, a load-bearing shaft, a strap clamp, a tensioning device, a bearing seat, a driven tooth gear, a load-bearing shaft sleeve, a connecting rod, a guide rod sleeve, a door carrying guide rod, a roller, a roller shaft, a groove-shaped cam and a door leaf; a tooth strap mechanism comprises the driving tooth gear, the tooth strap, the strap clamp, the tensioning device, the bearing seat and the driven tooth gear, and the strap clamp is fixedly connected with the load-bearing shaft sleeve, the connecting rod and the guide rod sleeve into a whole so as to form a single shaft and guide rod mechanism with the load-bearing shaft, the door carrying guide rod, the door frame and the like; and a groove-shaped cam mechanism comprises the load-bearing shaft, the load-bearing shaft sleeve, the guide rod sleeve, the roller, the roller shaft, the door carrying guide rod, the groove-shaped cam and the door leaf, and the three mechanisms are connected with one another to form the tooth strap, single shaft and guide rod, and groove-shaped cam combined spatial mechanism.

Description

technical field [0001] The present invention relates to a plug door tooth belt single-axis guide rod groove type cam combined space mechanism, which relates to a plug sealing opening and closing mechanism of a vehicle plug door, in particular to a high-speed rail or other rail vehicle plug door tooth belt single shaft Guide rod slot cam combination space mechanism. Background technique [0002] At present, the automatic doors of rail vehicles at home and abroad mainly include three series of door systems: plug doors, external doors and built-in doors. The transmission methods mainly include screw transmission and toothed belt (ie synchronous toothed belt) transmission. [0003] The sliding door system is usually a single or double door leaf. When it is a double leaf, on the one hand, it needs to realize the opening and closing movement of the two door leaves that are opened and closed. The door leaf plug moves inward to ensure a good sealing effect after closing the door. ...

AI Technical Summary

Problems solved by technology

[0011] In recent years, toothed belt transmission has been greatly improved in terms of material and structure. For example, neoprene toothed belt adopts glass fiber tensile layer, neoprene toothed belt, belt back and nylon cloth layer, polyurethane polyester tensile toothed belt etc. Combining the advantages of gear, chain and belt transmission, it overcomes the shortcomings of traditional toothed belt transmission, such as extension, fragility, and low load-bearing capacity, and has the advantages of accurate transmission, low noise, high load-bearing capacity, long life, high reliability, and energy saving. High efficiency, small pre-tightening force, etc.

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