Axial retention device for turbine system

Abstract

An axial retention device for a turbine system is disclosed. The axial retention device includes a pocket defined in a mating surface of one of a turbine component and a support structure. The pocket includes a first axial load surface. The axial retention device further includes a latch comprising a base member and a pivotal member. The base member is associated with a mating surface of the other of the turbine component and the support structure. The pivotal member is configured to engage the pocket and includes a first mating axial load surface. Engagement of the pivotal member and the pocket allows the first axial load surface and the first mating axial load surface to interact, preventing axial movement of the turbine component with respect to the support structure in the at least one direction.

1 . An axial retention device for a turbine system, the axial retention device comprising:
 a pocket defined in a mating surface of one of a turbine component and a support structure, the pocket including a first axial load surface; and   a latch comprising a base member and a pivotal member, the base member associated with a mating surface of the other of the turbine component and the support structure, the pivotal member configured to engage the pocket and including a first mating axial load surface,   wherein engagement of the pivotal member and the pocket allows the first axial load surface and the first mating axial load surface to interact, preventing axial movement of the turbine component with respect to the support structure in at least one direction.   
     
     
         2 . The axial retention device of  claim 1 , wherein in a first position, the pivotal member is disengaged from the pocket and allows axial movement of the turbine component with respect to the support structure in the at least one direction, and in a second position, the pivotal member is engaged with the pocket and prevents axial movement of the turbine component with respect to the support structure in the at least one direction. 
     
     
         3 . The axial retention device of  claim 2 , wherein the pivotal member is biased towards the second position. 
     
     
         4 . The axial retention device of  claim 2 , the pivotal member further comprising a disassembly feature, the disassembly feature configured to pivot the pivotal member from the second position to the first position. 
     
     
         5 . The axial retention device of  claim 4 , wherein the disassembly feature is a groove defined in the pivotal member. 
     
     
         6 . The axial retention device of  claim 4 , further comprising a lever configured to engage the disassembly feature and pivot the pivotal member from the second position to the first position. 
     
     
         7 . The axial retention device of  claim 1 , the pocket further including a second axial load surface, the pivotal member further including a second mating axial load surface, and wherein interaction of the second axial load surface and the second mating axial load surface prevents axial movement of the turbine component with respect to the support structure in a second opposite direction. 
     
     
         8 . The axial retention device of  claim 1 , wherein the pocket is defined in a mating surface of the support structure. 
     
     
         9 . The axial retention device of  claim 1 , the mating surface of the other of the turbine component and the support structure defining a second pocket, and wherein the base member is configured to engage the second pocket. 
     
     
         10 . The axial retention device of  claim 1 , wherein the turbine component is a blade and the support structure is a rotor disk. 
     
     
         11 . A turbine system, comprising:
 a support structure, the support structure having a mating surface;   a turbine component, the turbine component having a mating surface;   a pocket defined in a mating surface of one of the turbine component and the support structure, the pocket including a first axial load surface; and   a latch comprising a base member and a pivotal member, the base member associated with a mating surface of the other of the turbine component and the support structure, the pivotal member configured to engage the pocket and including a first mating axial load surface,   wherein engagement of the pivotal member and the pocket allows the first axial load surface and the first mating axial load surface to interact, preventing axial movement of the turbine component with respect to the support structure in at least one direction.   
     
     
         12 . The turbine system of  claim 11 , wherein in a first position, the pivotal member is disengaged from the pocket and allows axial movement of the turbine component with respect to the support structure in the at least one direction, and in a second position, the pivotal member is engaged with the pocket and prevents axial movement of the turbine component with respect to the support structure in the at least one direction. 
     
     
         13 . The turbine system of  claim 12 , wherein the pivotal member is biased towards the second position. 
     
     
         14 . The turbine system of  claim 12 , the pivotal member further comprising a disassembly feature, the disassembly feature configured to pivot the pivotal member from the second position to the first position. 
     
     
         15 . The turbine system of  claim 14 , wherein the disassembly feature is a groove defined in the pivotal member. 
     
     
         16 . The turbine system of  claim 14 , further comprising a lever configured to engage the disassembly feature and pivot the pivotal member from the second position to the first position. 
     
     
         17 . The turbine system of  claim 11 , the pocket further including a second axial load surface, the pivotal member further including a second mating axial load surface, and wherein interaction of the second axial load surface and the second mating axial load surface prevents axial movement of the turbine component with respect to the support structure in a second opposite direction. 
     
     
         18 . The turbine system of  claim 11 , wherein the pocket is defined in a mating surface of the support structure. 
     
     
         19 . The turbine system of  claim 11 , the mating surface of the other of the turbine component and the support structure defining a second pocket, and wherein the base member is configured to engage the second pocket. 
     
     
         20 . The turbine system of  claim 11 , wherein the turbine component is a blade and the support structure is a rotor disk.