Insulated roller profile guide rail assembly

Abstract

The invention relates to an insulated roller profile guide rail assembly. The insulated roller profile guide rail assembly comprises a composite material roller and a guide rail profile; the compositematerial roller comprises a fixed shaft; and the fixed shaft of the composite material roller is fixedly connected with the guide rail profile. The insulated roller profile guide rail assembly is characterized in that the composite material roller further comprises an internal roller and an external roller; the fixed shaft is arranged in a shaft hole of the internal roller; the internal roller isarranged in an internal hole of the external roller; the internal roller is in tight fit with the external roller; the internal roller is injection-molded from a mixed material consisting of glass fiber reinforced nylon and a solid lubrication material, wherein the mass ratio of the glass fiber, the nylon and the solid lubrication material is 20-35:45-70:10-20, and the percentage sum of all components is 100%; and the external roller is injection-molded from high glass fiber reinforced polyamide resin, wherein the content of the glass fiber is 40-60%. The insulated roller profile guide rail assembly has the advantages of high load and low resistance.

Description

technical field [0001] The invention specifically relates to a high-load and low-resistance insulating roller profile guide rail assembly, which is suitable for the requirements of supporting and installing modules and other equipment in power equipment, as well as being convenient for manual pushing during maintenance. Background technique [0002] In the power equipment, the modules and other equipment are often installed at high altitudes, and the gap between the modules and the modules is small. During the maintenance, the operator needs to stand on the climbing car to pull out or push in by manpower. The mass of a single module is usually large (>200Kg). In order to control the resistance of pulling out or pushing in to an acceptable range for manual operation, the traditional industry practice is to install multiple universal balls on the rail profile to reduce the pushing resistance. effect. [0003] The traditional rail profiles using universal balls have point c...

AI Technical Summary

Problems solved by technology

[0003] For the traditional guide rail profiles using universal balls, there is a point contact between the universal balls and the module bottom plate. When the single-point support force is large, the module bottom plate will be locally deformed near the contact point, and this deformation will greatly increase the power of the module. push resistance

With the continuous development of power equipment modules to higher power and higher performance, their quality is getting higher and higher (the quality of some products has reached 500-700Kg), so this traditional universal ball guide profile can no longer meet the needs of manpower. requirements

[0004] In addition, ceramic universal balls and metal universal balls are currently used more widely. Under heavy loads, ceramic universal balls are also prone to failure; while metal universal balls will not collapse under heavy loads. However, regardless of heavy load or light load, some large balls in the over-positioning structure do not contact the bottom plate, and the small metal balls that are not stressed inside are also in an unreliable connection state. These are the causes of floating potential and excessive partial discharge. Therefore, neither the ceramic universal ball nor the traditional metal universal ball guide can meet the requirements of power equipment for higher and higher reliability and heavier quality. Therefore, the development of heavy-duty low-resistance The insulation guide rail profile is a major issue that needs to be considered urgently

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