F clutch drum and method for improving performance of F clutch drum
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.
1 . 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.
2 . The F clutch drum according to claim 1 , wherein the toothed ring stamped from the alloy steel sheet comprises teeth and a tooth groove;
a back groove for injecting aluminum alloy during casting of the body is formed on a back of the teeth; a joint portion for welding and fixing the toothed ring and each metal ring is formed on a back of the tooth groove, and each metal ring is not connected to the toothed ring at the back groove.
3 . The F clutch drum according to claim 1 , wherein each metal ring is made of alloy steel.
4 . The F clutch drum according to claim 1 , further comprising a first annular gear ring and a second annular gear ring formed at both ends of the clutch drum body.
5 . A transmission housing, comprising a transmission outer housing and an F clutch drum disposed in the transmission outer housing, wherein the F clutch drum is the F clutch drum of claim 1 .
6 . A transmission, wherein the transmission housing of the transmission comprises a transmission outer housing and an F clutch drum disposed in a transmission outer housing, wherein the F clutch drum is the F clutch drum of claim 1 .
7 . The transmission according to claim 6 , wherein the transmission refers to a transmission of model 10L1000, 10L90, 10L80, 10R140, 10R80, or 10R60.
8 . 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.
9 . A transmission housing, comprising a transmission outer housing and an F clutch drum disposed in the transmission outer housing, wherein the F clutch drum is the F clutch drum prepared by the method of claim 8 .
10 . A transmission, wherein the transmission housing of the transmission comprises a transmission outer housing and an F clutch drum disposed in a transmission outer housing, wherein the F clutch drum prepared by the method of claim 8 .
11 . The transmission according to claim 10 , wherein the transmission refers to a transmission of model 10L1000, 10L90, 10L80, 10R140, 10R80, or 10R60.