초록 ▼

Tooling for balancing a turbine engine module (10) in a balancing machine, the turbine engine module having at least one stator housing (14) and a rotor (16) having a shaft (18) with a longitudinal axis A and at least one blade stage (20) surrounded by the stator housing (14). The tooling has at lea

Tooling for balancing a turbine engine module (10) in a balancing machine, the turbine engine module having at least one stator housing (14) and a rotor (16) having a shaft (18) with a longitudinal axis A and at least one blade stage (20) surrounded by the stator housing (14). The tooling has at least a balancing frame (14), having rotor (16) guide bearings, first and second annular plates (30, 32) designed to be attached to the stator housing (14), third and fourth attachment lugs (34, 36) provided on the balancing frame (24), to attach the first and second annular plates (30, 32) to the frame. A trolley is for transporting the frame (24), and a support (84, 94) for supporting the frame, provided on the balancing frame (24) and cooperating equally well with the balancing machine and with the trolley.

대표청구항 ▼

1. Tooling for balancing a turbine engine module in a balancing machine, said module having at least one stator housing and a rotor having a shaft with a longitudinal axis A and at least one blade stage which is connected to a longitudinal end portion of said shaft and which is surrounded by said st

1. Tooling for balancing a turbine engine module in a balancing machine, said module having at least one stator housing and a rotor having a shaft with a longitudinal axis A and at least one blade stage which is connected to a longitudinal end portion of said shaft and which is surrounded by said stator housing, wherein said tooling has at least: a balancing frame, having bearings designed to receive and to guide the shaft and the blade stage of the rotor, the position of at least one of said bearings being adjustable relative to said frame;first and second attaching means designed to be attached to said stator housing;third and fourth attaching means provided on said frame, to attach said first and second means, respectively, to said frame, the position of at least one of said third and fourth means being adjustable relative to said frame;transporting means for transporting the frame;supporting means for supporting the frame, provided on said frame and designed to cooperate equally well with the balancing machine and with the transporting means for transporting the frame, in order to support said frame in said transporting means for transport and in said balancing machine. 2. Tooling according to claim 1, wherein the tooling has removable locking means for locking the rotor relative to the stator housing, said removable means being intended to immobilise the rotor relative to the stator housing while the rotor is being transported to the balancing machine. 3. Tooling according to claim 2, wherein the first attaching means have an annular plate, which is designed to be attached to a first end of the stator housing, which is intended to cooperate with the third attaching means provided on the frame, and an inner peripheral edge of which has the seventh removable locking means for locking the rotor. 4. Tooling according to claim 3, wherein the second attaching means have a ring, which is designed to be attached to a second opposite end of the stator housing, which is intended to cooperate with the third attaching means provided on the frame, and which has an adjusting means for adjusting a vertical position and a transverse position of the stator housing. 5. Tooling according to claim 1, wherein the balancing frame has, at a first end near the stator housing, a first offset support guide bearing, which has a tubular element of which a first end, intended to be introduced into the stator housing, has at least one bearing for rotatably receiving a support shaft received in the blade stage, and of which a second opposite end, intended to project outside the stator housing, has at least one peripheral bearing surface which is clamped to a first support that is rigidly connected to the frame. 6. Tooling according to claim 5, wherein the balancing frame has, at a second end, a second guide bearing with rollers that has a plate carrying two rollers on which the shaft is intended to roll, said plate being carried by a second support that is rigidly connected to the frame, and the position of said plate being capable of being adjusted transversely and vertically relative to said second support, then immobilised definitively in an adjusted position by pins traversing the plate and said second support, and locked in said adjusted position by clamping screws arranged with clearance between the plate and the second support. 7. Tooling according to claim 1, wherein the transporting means for transporting the frame have a trolley capable of carrying the frame. 8. Tooling according to claim 7, wherein the balancing frame has, at a first end near the stator housing, a first offset support guide bearing, which as a tubular element of which a first end, intended to be introduced into the stator housing, has at least one bearing for rotatably receiving a support shaft received in the blade stage, and of which a second opposite end intended to project outside the stator housing, has at least one peripheral bearing surface which is clamped to a first support that is rigidly connected to the frame, wherein the balancing frame has, at a second end, a second guide bearing with rollers that has a plate carrying two rollers on which the shaft is intended to roll, said plate being carried by a second support that is rigidly connected to the frame, and the position of said plate being capable of being adjusted transversely and vertically relative to said second support, then immobilized definitively in an adjusted position by clamping screws arranged with clearance between the plate and the second support, wherein the first and second supports have a semi-cylindrical cross section and in that the transport trolley and the balancing machine have semi-cylindrical receiving bearing surfaces that are adjustable transversely and vertically and are complementary to said first and second supports, and means for clamping said first and second supports which form the supporting means for supporting the frame, in said receiving surfaces. 9. Tooling according to claim 3, wherein the tooling has a first lifting means for lifting the module, having slings intended to cooperate with the annular plate and having an end support of the shaft of the rotor and which are capable of allowing the module to be lifted, and a removable intermediate support connecting the shaft of the rotor to the stator housing. 10. Tooling according to claim 9, wherein the balancing frame has, at a second end, a second guide bearing with rollers that has a plate carrying two rollers on which the shaft is intended to roll, said plate being carried by a second support that is rigidly connected to the frame, and the position of said plate being capable of being adjusted transversely and vertically relative to said second support, then immobilized definitively in an adjusted position by clamping screws arranged with clearance between the plate and the support, wherein the tooling has a second lifting means for lifting the frame having slings intended to cooperate with the annular plate and with the second support, and which are capable of allowing the frame to be lifted. 11. Tooling according to claim 8, wherein the frame has an open shape that is trapezoid or U-shaped and in that the frame has at least one horizontal leg capable of resting on the trolley and two legs, including at least one vertical leg, of which the ends carry the bearings of the frame. 12. Calibration assembly for adjusting tooling according to claim 11, wherein the calibration assembly has: a reference stator housing, consisting of a stack of pig moulds of a mass corresponding to that of the stator housing of the module, and which is intended to rest on the frame in a position corresponding substantially to the point of application of the weight of the stator housing of the module; anda balanced reference rotor, having a moment of inertia and moment of unbalance corresponding substantially to the rotor of the module to be balanced. 13. Method for adjustment before balancing of a balancing machine and of tooling according to claim 11 using a calibration assembly having a reference stator housing, consisting of a stack of pig moulds of a mass corresponding to that of the stator housing of the module, and which is intended to rest on the frame in a position corresponding substantially to the point of application of the weight of the stator housing of the module, and a balanced reference rotor, having a moment of inertia and moment of unbalance corresponding substantially to the rotor of the module to be balanced, wherein the method has: a first step of static adjustment of the balancing machine, during which the semi-cylindrical bearing surfaces of the balancing machine are adjusted so that the semi-cylindrical bearing surfaces are coaxial;a second step during which the balanced reference rotor and the reference stator housing are installed in the frame;a third step during which the frame fitted with the balanced reference rotor and the reference stator housing is transferred onto the semi-cylindrical bearing surfaces of the balancing machine;a fourth step of dynamic adjustment on the balancing machine, during which the vertical position of the rollers is adjusted by adjusting the plate relative to the second support, so that the axes A of the bearings are parallel to an axis B of a drive shaft of the balancing machine, then the plate and the second support are perforated and rods are inserted into perforations made in order to define the position of the plate, and lastly the plate is locked relative to the second support. 14. Method for balancing a turbine engine module with a tooling according to claim 10, wherein the method has: a first step of lifting and positioning, using the first lifting means, a module in a frame received in the transporting means;a second step of transporting the module fitted with the frame to the balancing machine, using the transporting means;a third step of lifting and transferring the module fitted with the frame into the balancing machine using the second lifting means; anda fourth step of balancing the module in the balancing machine.