SU63992A1 - Electric hammer - Google Patents

Description

A disadvantage of the known electric hammers is their comparative complexity. The work of such hammers is inevitably accompanied by rapid wear of parts. Therefore, when creating new designs of hammers, it is necessary to go along the line of possible simplification of mechanisms in order to easily and quickly replace the worn part.

When creating such structures, there were attempts to apply a flexible connection between moving parts of the hammer, but these attempts were not successful, since their constructive solutions were unsuccessful.

The present invention provides a new constructive design for hammers with a flexible connection between the drive crank and the striker. The solution is that the spring-loaded firing pin is connected to the crank pin with a cable.

In FIG. 1 shows schematically the proposed hammer; FIG. 2 gives a hammer tensioning scheme, and FIG. 3 - modification of the hammer.

The hammer receives movement from engine 1, which reports

rotational movement of the crank 2, located directly on the shaft or connected through the transmission. The engine and crank, depending on the design, can be horizontally or vertically.

The head 3 is reciprocated due to the flexible connection in the form of a cable 4 n. P. between the head 3 and the finger of the crank 2 and the spring 5 located between the stops in the hammer body and the head 3.

The presence of a flexible connection in the form of a cable 4, which goes around the roller 6, avoids the use of special devices for separating the striker from the curved shaft at the moment of impact, while reliably providing both tension of the spring 5 when lifting the striker and the lack of recoil upon impact.

This, moreover, makes it possible to design the structure in such a way that each part that is worn out can be easily and quickly replaced with a spare one.

To tension or release the cable 4 when switching