Bearing of a breaking device tool

A breaking device comprising:

• a frame,
• a percussion device having a percussion element for generating compression stress pulses,
• a tool arranged on the extension of the percussion element and arranged to transmit the compression stress pulses to material to be broken as stress waves, and
• at least one bearing bushing arranged in a bearing space around the tool, which bearing bushing is of bearing material, whereby it is arranged to form a slide bearing for the tool moved in the axial direction,
• wherein a clearance space in the radial direction is arranged between the outermost diameter of the bearing bushing and the diameter of the bearing space,
• wherein the bearing bushing is of deformable metallic bearing material,
• wherein the bearing bushing is prevented in the axial direction from getting out of the bearing space after the mounting, and
• wherein the bearing bushing is locked in place in the bearing space in both the axial and radial directions during the use of the breaking device when the stress waves in the tool and the movement in the direction of the perpendicular of the tool surface due to the waves have caused the bearing bushing to be enlarged in the direction of the periphery and radially deformed against the bearing space to lock the bushing immovably axially and radially in the bearing space.

A breaking device comprising:

• a frame,
• a percussion device having a percussion element for generating compression stress pulses,
• a tool arranged on the extension of the percussion element and arranged to transmit the compression stress pulses to material to be broken as stress waves, and
• at least one bearing bushing arranged in a bearing space around the tool, which bearing bushing is of bearing material, whereby it is arranged to form a slide bearing for the tool moved in the axial direction,
• wherein an initial clearance space in the radial direction is arranged between the outermost diameter of the bearing bushing and the diameter of the bearing space,
• wherein the bearing bushing is of deformable rigid bearing material,
• wherein the bearing bushing is prevented in the axial direction from getting out of the bearing space after the mounting, and
• wherein the bearing bushing is locked in place in the bearing space in both the axial and radial directions during the use of the breaking device when the stress waves in the tool and the movement in the direction of the perpendicular of the tool surface due to the waves have caused the bearing bushing to be enlarged in the direction of the periphery and radially deformed against the bearing space to lock the bushing immovably axially and radially in the bearing space.

A breaking device comprising:

• a frame,
• a percussion device having a percussion element for generating compression stress pulses,
• a tool arranged on the extension of the percussion element and arranged to transmit the compression stress pulses to material to be broken as stress waves, and
• at least one bearing bushing arranged in a bearing space around the tool, which bearing bushing is of bearing material, whereby it is arranged to form a slide bearing for the tool moved in the axial direction,
• wherein an initial clearance space in the radial direction is arranged between the outermost diameter of the bearing bushing and the diameter of the bearing space,
• wherein the bearing bushing is prevented in the axial direction from getting out of the bearing space after the mounting,
• wherein the bearing bushing is of permanently deformable bearing material, and
• wherein the bearing bushing has been enlarged in the direction of the periphery and radially deformed, by the stress waves in the tool and the movement in the direction of the perpendicular of the tool surface due to the waves, to press against the bearing space to lock the bushing immovably axially and radially in the bearing space.