44results about How to "Realize linkage adjustment" patented technology

The invention provides a high-stability two-dimensional attitude adjusting mechanism, which belongs to the field of instruments and equipment, and comprises an adjusting table, a base, two linear drivers arranged on the base in parallel, two flexible connecting assemblies arranged between the two drivers, and a lifting device group arranged between the base and the adjusting table, the lifting device set is used for lifting the adjusting table and leaving the adjusting table from the base, and the two linear drivers are used for driving the two flexible connecting assemblies to move in the same direction or in the opposite directions correspondingly, so that the adjusting table is driven to horizontally move in the radial direction or rotate in the axial direction. During use, the lifting device separates the adjusting table from the base through a certain lifting force, mutual friction between the adjusting table and the base is avoided, then the two linear drivers are driven to adjust movement in the same or opposite directions, and therefore translation adjustment of the adjusting table and angle adjustment in a plane are achieved. All motions of the two drivers can be decomposed into superposition of the two motions, and therefore linkage adjustment of the adjusting table in the specific linear direction in the horizontal plane and the angle in the horizontal plane is achieved.

The invention discloses a railway roadbed draining BIM design method based on a curved surface of a landform. The method comprises the following steps: building a digital ground surface model according to three-dimensional landform point cloud data; importing an embankment slope foot design line and a cutting top design line; constructing a customized dictionary of a railway roadbed draining project; constructing railway roadbed draining horizontal surface and vertical section viewports; creating a customized entity of a horizontal surface of a waterway in an interactive way; automatically creating a customized entity of a vertical section of the waterway; conducting linked cooperative interactive design of the horizontal surface and the vertical section of the waterway and creating a three-dimensional point coordinate file from the result of the design; creating a three-dimensional waterway skeleton line in Dassault Systemes; developing waterway templates with a uniform cross section and a variable cross section in the Dassault Systemes; instantiating the templates to generate a three-dimensional waterway model with additional information; and cutting a landform curved surface covering the waterway from the top and achieving fusion of the waterway model and the landform curved surface. The design process of the method is highly automatic, and the method is highly practical. The method can largely improve design efficiency and result quality and thus has significant promotion and application value.