A connection mechanism of closing and opening springs and its adjusting tool

Abstract

The invention relates to a closing and opening spring connecting mechanism. The closing and opening spring connecting mechanism comprises a spring barrel and a compression spring; one end of the compression spring is fixed in the spring barrel, the other end of the compression spring is a free end, a tray is installed on the end face of the free end in an abutting-against mode, a groove wheel is installed in the spring barrel, a chain is arranged in a wheel groove of the groove wheel in a winding mode, the end, extending out of the spring barrel, of the chain is connected to an energy storage connecting lever or an outputting connecting lever, the other end of the chain extends in the compression direction of the compression spring and is connected with a screw through a chain connector, and the other end of the screw penetrates through the tray and is connected with the tray through a screwing nut. Lateral force between an existing tray and an existing spring barrel is avoided; in the motion process, the frictional resistance is small, and the transmission efficiency is high. By means of an adjusting tool, spring pre-compression amount adjusting becomes convenient and rapid, the spring pre-compression amount can be adjusted without taking down the tray and the compression spring, and the work efficiency is improved.

Description

technical field [0001] The invention relates to a connection mechanism of closing and opening springs and its adjustment tooling, specifically, a large spring connection mechanism of closing and opening springs of a spring operating mechanism of a high-voltage circuit breaker and its pre-compression and pre-compression adjustment during installation tooling. Background technique [0002] As one of the important forms of the high-voltage circuit breaker operating mechanism, the spring operating mechanism has the advantages of simple structure, low cost, long life, no pollution to the environment, good weather resistance, free operation and maintenance, and high reliability. are widely used in. [0003] In the spring operating mechanism, as a carrier for storing and releasing energy, the form of closing and opening springs is generally a cylindrical helical compression spring. When the mechanism is assembled, the closing and opening springs need to be pre-compressed to a cer...

AI Technical Summary

Problems solved by technology

[0004] like figure 1 As shown, in the spring operating mechanism of the prior art, the tray (3) installed in the spring barrel (1) is connected with the connecting rod (6), and the closing and opening springs are driven by the connecting rod, causing the tray and the spring There is lateral force and additional frictional resistance between the cylinders, so the transmission efficiency is low

The spring pre-compression is adjusted by increasing or decreasing the number of spacers (4) between the compression spring (5) and the tray (3). When adjusting, the compression spring and the tray need to be removed, and then reinstalled after increasing or decreasing the number of spacers , the adjustment process is time-consuming and labor-intensive. In addition, since the thickness of the gasket is a fixed value, only the stepwise adjustment of the spring compression can be realized.

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