F clutch drum and method for improving performance of F clutch drum
AssigneeFederal New Power (Qingdao) Co., Ltd.
InventorsTao Tan, Lianlian Yin
Life of this patent
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Abstract
The present application relates to an F clutch drum, which includes a clutch drum body and a gear ring fixed to an inner wall of the clutch drum body by foundry steel insert for cooperation with a clutch plate of the F clutch; the clutch drum body is made of aluminum alloy; the gear ring is made of alloy steel. The upgraded drum, as a brand-new insert design process, is formed by extruding and stamping alloy steel sheets. However, it is difficult to meet the dimensional requirements of the connecting teeth. Iron bars are welded around the steel sheets. This maintains uniform spacing between each tooth and ensures that the connection dimensions meet the requirements.
Claims11
An F clutch drum, comprising a clutch drum body and a gear ring fixed to an inner wall of the clutch drum body by foundry steel insert for cooperation with a clutch plate of the F clutch;
- the clutch drum body is made of aluminum alloy;
- and
- the gear ring is made of alloy steel,
- wherein the gear ring comprises a toothed ring stamped from an alloy steel sheet and a plurality of metal rings sleeved on the toothed ring to constrain the toothed ring, and a joint between each metal ring and an outer wall of the toothed ring is fixed by welding.
A method for improving the performance of an F clutch drum, comprising:
- stamping an alloy steel sheet to form teeth, a tooth groove, and a back groove;
- bending the stamped alloy steel sheet into a ring shape and fitting the ring shape into a metal ring;
- welding and fixing the metal ring and a toothed ring at a joint portion to form a gear ring;
- placing the gear ring in a mold for casting a clutch drum body and casting the clutch drum body by foundry steel insert;
- and
- injecting aluminum alloy liquid into the mold, where the aluminum alloy liquid enters the back grooves at the gear ring and wraps the metal ring;
- after cooling, the metal ring at the back groove is firmly fixed by an aluminum alloy in the back groove and an aluminum alloy of the clutch drum body.
Dependencies are inferred from the claim text.