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US 2024/0173838 A1Published application
Shield arrangement and breaking hammer
AssigneeSandvik Mining and Construction Oy
InventorsErik AIRAS, Juho HUOTARI, Ilkka NIEMI, Juha INTONEN, Jarkko LUOKKALA
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Abstract
A shield arrangement, breaking hammer and method of protecting body of a breaking hammer is provided. The shield arrangement includes a shield element, which is mounted to the body by means of a separate sleeve-like element passing through an opening of the shield element. The sleeve-like element is a tool bushing, which also provides support for a breaking tool.
Claims11
A shield arrangement of a breaking hammer, the shield arrangement comprising:
- at least one shield element arranged for providing mechanical protection for a body of the breaking hammer:
- at least one fastening element arranged for mounting the shield element to the body;
- and
- a separate sleeve-like element configured to as the fastening element, wherein the sleeve-like element is a tool bushing having an inner opening arranged to receive a breaking tool:
- wherein the shield element includes a through opening arranged for receiving the sleeve-like element, wherein the tool bushing has a thickened outer diameter at one end, which is surrounded by the shield element, and wherein the shield element is made of a wear-resistant steel, the tool bushing including at least one transverse locking opening arranged for receiving a transverse locking pin, whereby the locking pin is configured to fasten the shield element to the body of the breaking hammer via the tool bushing;
- and, and at the thickened end portion of the tool bushing there is at least one sealing ring mounted on its inner periphery.
3 more elements
(canceled)
Dependencies are inferred from the claim text.