Screw, rocking block guide rod and trough-type cam combined space mechanism of sliding plug door

Abstract

The invention discloses a screw, rocking block guide rod and trough-type cam combined space mechanism of a sliding plug door, relates to a siding-plug-sealing opening and closing mechanism of a vehicular sliding plug door, in particular to a screw, rocking block guide rod and trough-type cam combined space mechanism of a sliding plug door of high-speed railway or other railway vehicles. The mechanism comprises a motor, a shaft coupling, a screw rod, a bearing shaft, a nut, a rocking block, a guide rod, a shaft sleeve, a door-carried rocking bar, a door handle, a roller, a roller shaft, a trough-type cam, a door fan and a door frame, wherein a screw mechanism consists of the screw rod and the nut; a rocking block guide rod mechanism consists of the rocking block, the guide rod, the door-carried rocking bar, the bearing shaft and the shaft sleeve; a trough-type cam mechanism consists of the roller, the roller shaft, the trough-type cam, the door handle, the door fan and the door frame; and the screw, rocking block guide rod and trough-type cam combined space mechanism is formed by combining the screw mechanism, the rocking block guide rod mechanism and the trough-type cam mechanism. The door frame is fixedly combined with the vehicle body. The motor fixed onto the door frame is connected with the screw rod by the shaft coupling; the other end of the screw rod is also fixedly combined with the door frame; and the nut is arranged on the screw rod.

Description

technical field [0001] The invention discloses a spiral rocker guide rod groove type cam combination space mechanism for a plug door, which relates to a plug seal opening and closing mechanism for a plug door of a vehicle, in particular to a screw rocker for a plug door of a high-speed rail or other rail vehicles. Block guide rod groove type cam combination space mechanism. Background technique [0002] Rail vehicle plug doors generally have two or one leaves. When there are two leaves, on the one hand, it is necessary to realize the opening and closing movement of the two leaves of the doors that are opened and closed. The inner door leaf pulls movement to ensure a good sealing effect after closing the door; when it is one leaf, the above-mentioned plug seal opening and closing movement is also realized, only to realize the single opening and single closing of one leaf. [0003] In order to realize the function of opening and closing the sliding door, the existing sliding ...

AI Technical Summary

Problems solved by technology

[0004] 1) The A-type plug door of the domestic A company realizes the opening and closing of the door along the x direction, and realizes the plug movement along the y direction to achieve sealing, but the main axis moving along the x direction is not fixed, it moves along the y direction at the same time, Therefore, the stability of the spindle is slightly poor, the structure size is large, and the space occupied is large;

[0005] 2) The B-type sliding door of foreign company B realizes the opening and closing of the door along the x direction. The main shaft moving in the x direction is fixed and has good rigidity. The rod mechanism realizes the plugging of the door, and its rigidity is good, but the structural size is large, and the door leaf has a swing up and down when it is used as a plug, which will affect the dynamic stability of the door leaf when it is quickly opened and closed;

[0006] 3) The C-type plug door of foreign C company also realizes the door opening and closing along the x direction, the main shaft is fixed, and the plug movement of the door is realized by a four-bar mechanism that rotates around the z axis, and its rigidity is good. However, when the door leaf is used as a plug, the support must be strengthened along the z-axis direction, which makes the structural size larger and the cost higher

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