Fastener for heavy transmission parts
AssigneesZF Friedrichshafen AG, Zf Wind Power Antwerpen N.V.
InventorsWim De Laet, Jan Aerts, Dominiek Ceyssens
Life of this patent
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Abstract
A fastener for a transmission part includes a main body. The main body has at least one external screw thread and at least one through-hole. The fastener further includes a first pin displaceable in a first region of the through-hole and a second pin having an external screw thread. A second region of the through-hole has at least one internal screw thread configured to be screwed to the external screw thread of the second pin. The second pin has a through-hole. The first pin has an internal screw thread aligned with the through-hole of the second pin.
Claims4
A fastener for a transmission part, the fastener comprising:
- a main body, wherein the main body has at least one external screw thread and at least one through-hole;
- a first pin displaceable in a first region of the through-hole;
- and
- a second pin having an external screw thread;
- wherein a second region of the through-hole has at least one internal screw thread configured to be screwed to the external screw thread of the second pin,
- wherein the second pin has a through-hole, and
- wherein the first pin has an internal screw thread aligned with the through-hole of the second pin.
A method for fastening a transmission part using a fastener, wherein the fastener comprises:
- a main body, wherein the main body has at least one external screw thread and at least one through-hole;
- a first pin displaceable in a first region of the through-hole;
- and
- a second pin having an external screw thread;
- wherein a second region of the through-hole has at least one internal screw thread configured to be screwed to the external screw thread of the second pin,
- wherein the second pin has a through-hole, and
- wherein the first pin has an internal screw thread aligned with the through-hole of the second pin, the method comprising:
- inserting the first pin into the first region of the through-hole of the main body;
- screwing the external screw thread of the main body into an internal screw thread of a structure of a transmission fixed to a housing;
- and
- tensioning the first pin against the transmission part by screwing the external screw thread of the second pin into the internal screw thread of the main body and tensioning the second pin against the first pin.
Dependencies are inferred from the claim text.