Sliding plug door bearing driving mechanism

Abstract

The invention discloses a sliding plug door bearing driving mechanism. The sliding plug door bearing driving mechanism comprises a rack, a left support and a right support are fixedly connected to the two sides of the rack, a left hanging frame and a right hanging frame are slidably connected to the left support and the right support through linear guide rail assemblies correspondingly, a pull rod and a long guide column are installed between the left hanging frame and the right hanging frame, and one side of the rack is fixedly connected to an upper slide way. According to the sliding plug door bearing driving mechanism, a linear motion mechanism, namely a linear guide rail assembly, capable of bearing the gravity of a door leaf and providing a guiding function is arranged on the sliding plug door bearing driving mechanism, the defect that an existing solution is large in occupied space is effectively overcome, meanwhile the sealing performance of the bearing driving mechanism is improved, the linear motion mechanism has the advantages of being high in rigidity, high in radial and axial load capacity, good in sealing performance, resistant to corrosion, low in maintenance requirement, compact in structure, convenient to install and replace, stable in motion and high in practicability.

Description

technical field [0001] The invention relates to the technical field of sliding doors, in particular to a bearing driving mechanism for sliding doors. Background technique [0002] The sliding door is widely used in the rail transit industry due to its superior safety performance, good applicability, and beautiful structure. The realization of the "sliding" function of the sliding door requires the load-bearing drive mechanism to provide reciprocating motion in the X and Y directions. At present, most of the sliding doors are connected by a door frame and a sliding tube. The sliding tube is set on the oblong guide post and slides along the direction of the guide post to realize the reciprocating movement in the Y direction. The realization of the reciprocating movement function in the X direction, There are mainly two forms: [0003] One is represented by the "swing type" door frame, which is connected with the sliding tube and can rotate around the sliding tube. The sliding...

AI Technical Summary

Problems solved by technology

[0006] However, the hanger of this structure is often larger, which not only increases the space volume of the bearing driving mechanism, but also increases the overall weight of the bearing driving mechanism. The linear bearing is installed inside the hanger, which is easy to wear and needs to be replaced frequently

Hangers are generally castings, with poor load capacity, insufficient strength, and poor vibration absorption performance

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