Rotor drum lifting appliance

Abstract

The utility model relates to a rotor drum lifting appliance, and belongs to the technical field of lifting equipment. Comprising a suspension clasp, connecting rods, fixing blocks and locking nuts, the connecting rods are evenly distributed on the periphery of the suspension clasp, the fixing blocks and the locking nuts are connected to the periphery of each connecting rod in a sleeving mode, the locking nuts are arranged close to the suspension clasp, the fixing blocks and the locking nuts can move on the connecting rods in the length direction of the connecting rods, clamping grooves are formed in the bottoms of the fixing blocks corresponding to flanges, and a suspension ring is arranged at the top of the suspension clasp. The clamping groove is formed in the bottom of the fixing block, so that the fixing block is clamped with the flange, and the flange is prevented from being damaged; the fixing block is connected to the periphery of the connecting rod in a sleeving mode and fixed through the locking nut, the lifting appliance is simple in structure and convenient to operate, rapid mounting and dismounting of the lifting appliance are achieved, meanwhile, stepless adjustment of the fixing block is achieved, and the adaptability of the lifting appliance is improved.

Description

Technical Field

[0001] The utility model relates to a rotor drum hanger and belongs to the technical field of lifting equipment. Background Art

[0002] A drum 9 is arranged on the upper part of the gas turbine rotor, and a flange 11 extends inwardly from the top of the rotor. Figure 6 As shown, when hoisting the gas turbine rotor, a hoist is generally designed to match the flange 11 on the rotor drum 9. There are two connection methods, one is to use bolts to connect, and the other is to fix it by pins passing through the connecting holes 10 on the flange. The disadvantage of bolt connection is that it is time-consuming, and the bolts or nuts are easy to fall off during the installation process; when pin connection is used, the pin is passed through the connecting hole on the flange, and the pin and the flange edge cannot be completely tightened, and the connecting hole on the rotor flange will be worn. Therefore, the traditional gas turbine rotor drum hoist cannot complete the hoisting of the rotor quickly and without damaging the parts.

[0003] A Chinese patent (CN206521198U) discloses a flange hanger, comprising a hanger rod, one end of which is provided with a hanger hook, and the other end of which is provided with a circular mounting plate, a ring-shaped hanger ring arranged concentrically therewith is arranged outside the mounting plate, a plurality of connecting rods are radially arranged between the mounting plate and the hanger ring, a sliding sleeve is slidably arranged on each connecting rod along the length direction of the connecting rod, a locking mechanism is arranged between the sliding sleeve and the connecting rod to lock the two in a plurality of working positions, a conical positioning hole is provided on the sliding sleeve, the length direction of the conical positioning hole extends along the plumb direction, a conical positioning portion matching therewith is arranged in the conical positioning hole, the upper end of the hanging rod is fixedly connected to the conical positioning portion, and the lower end of the hanging rod is provided with a hook, and when adjusting, it is only necessary to unlock the locking mechanism and adjust the position of the sliding sleeve, and in addition, since the hanging rod and the sliding sleeve are connected through the conical positioning portion and the conical positioning hole, the contact surface is large and it is not easy to break.

[0004] The problems with the above patent are: on the one hand, the flange is hooked with a hook, and once the flange component is heavy or shakes, the flange is easily deformed; on the other hand, the sliding sleeve and the connecting rod are connected by a locking pin and a locking hole, and the spacing between the locking holes means that the position of the hook can only be limited, which reduces the applicability of the device. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a rotor drum hoist, to achieve rapid hoisting of the gas turbine rotor, to avoid damage to the drum flange, and to expand the scope of use.

[0006] The utility model discloses a rotor drum hanger, comprising a hanging buckle, a connecting rod, a fixing block and a locking nut. A plurality of connecting rods are evenly distributed on the periphery of the hanging buckle. The fixing block and the locking nut are sleeved on the periphery of each connecting rod. The locking nut is arranged close to the hanging buckle. The fixing block and the locking nut can move on the connecting rod along the length direction of the connecting rod. A slot is arranged at the bottom of the fixing block corresponding to the flange, and a lifting ring is arranged at the top of the hanging buckle.

[0007] Move the fixing block and the locking nut to the side close to the lifting buckle, place the sling in the middle of the flange, move the fixing block, connect the slot on the fixing block with the flange, then move the locking nut to fix the position of the fixing block, and finally lift the lifting ring with the crane hook to realize the handling of the rotor. By setting the slot at the bottom of the fixing block, the fixing block and the flange are connected, avoiding damage to the flange; by sleeve-fitting the fixing block on the outer periphery of the connecting rod and fixing it with the locking nut, the structure is simple and the operation is convenient, which realizes the rapid installation and removal of the sling, and at the same time realizes the stepless adjustment of the fixing block, improving the adaptability of the sling.

[0008] The described hanging buckle is provided with a threaded hole corresponding to the connecting rod, and an external thread is provided on the outer periphery of the connecting rod corresponding to the threaded hole on the hanging buckle, and the connecting rod and the hanging buckle are detachably connected through the thread. The connecting rod is screwed into the threaded hole on the hanging buckle, so that the connecting rod and the hanging buckle can be installed and removed, and it is convenient to store when not in use, and it is convenient to repair and replace when parts are damaged.

[0009] The number of the connecting rods is three, which ensures the stability of the rotor lifting.

[0010] A stopper is arranged at one end of the connecting rod away from the hanging buckle and corresponding to the fixing block to prevent the fixing block and the locking nut from falling off from the connecting rod.

[0011] The locking nut is connected to the connecting rod through threads.

[0012] The upper part of the fixed block is provided with a through hole, and the connecting rod is provided through the through hole. The through hole is provided on the fixed block, so that the fixed block can be easily moved on the connecting rod, the friction between the fixed block and the connecting rod is reduced, and the stepless adjustment of the fixed block is realized.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model realizes the clamping connection between the fixing block and the flange by arranging a clamping groove at the bottom of the fixing block, thereby avoiding damage to the flange; the fixing block is sleeved on the outer periphery of the connecting rod and fixed by a locking nut, which has a simple structure and is easy to operate, thereby realizing rapid installation and disassembly of the sling, and at the same time realizing stepless adjustment of the fixing block, thereby improving the adaptability of the sling.

[0015] (2) A threaded hole is provided on the hanging buckle corresponding to the connecting rod, and an external thread is provided on the outer periphery of the connecting rod corresponding to the threaded hole on the hanging buckle, and the connecting rod and the hanging buckle are detachably connected through the thread. The connecting rod is screwed into the threaded hole on the hanging buckle, so that the connecting rod and the hanging buckle can be installed and removed, which is convenient for storage when not in use, and convenient for repair and replacement when parts are damaged.

[0016] (3) A through hole is arranged on the upper part of the fixed block, and the connecting rod is arranged through the through hole. The through hole is arranged on the fixed block to facilitate the movement of the fixed block on the connecting rod, reduce the friction between the fixed block and the connecting rod, and realize stepless adjustment of the fixed block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of embodiment 1 of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view of the structure of Embodiment 1 of the utility model;

[0019] Figure 3 It is a three-dimensional structural diagram of the hook;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed block;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the connecting rod;

[0022] Figure 6 is a cross-sectional view of a gas turbine rotor.

[0023] In the figure: 1. slot; 2. fixing block; 3. connecting rod; 4. locking nut; 5. lifting buckle; 6. lifting ring; 7. through hole; 8. stopper; 9. drum; 10. connecting hole; 11. flange. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with embodiments:

[0025] Example 1

[0026] like Figure 1 to Figure 5 As shown, a rotor drum hanger according to the utility model comprises a hanger 5, a connecting rod 3, a fixing block 2 and a locking nut 4. Figure 1 and Figure 2 As shown, three connecting rods 3 are evenly distributed around the hanging buckle 5, threaded holes are set on the hanging buckle 5 corresponding to the connecting rods 3, and external threads are set on the outer periphery of the connecting rods 3 corresponding to the threaded holes on the hanging buckle 5. The connecting rods 3 and the hanging buckle 5 are detachably connected through threads. The outer periphery of each connecting rod 3 is sleeved with a fixing block 2 and a locking nut 4, and the locking nut 4 is set close to the hanging buckle 5. A through hole 7 is set on the upper part of the fixing block 2, as shown in FIG. Figure 4As shown, the connecting rod 3 is set through the through hole 7; the locking nut 4 is connected to the connecting rod 3 by a thread, the fixing block 2 and the locking nut 4 can move on the connecting rod 3 along the length direction of the connecting rod 3, and the bottom of the fixing block 2 is provided with a slot 1 corresponding to the flange 11, and the shape of the slot 1 is adapted to the edge shape of the flange 11, and a lifting ring 6 is provided on the top of the lifting buckle 5, as shown in FIG. Figure 1 and Figure 3 As shown, the lifting ring 6 is welded to the lifting buckle 5 .

[0027] A stopper 8 is provided at one end of the connecting rod 3 away from the hanging buckle 5 corresponding to the fixing block 2. Figure 5 There are two stoppers 8, which are symmetrically arranged on the outer periphery of the connecting rod 3.

[0028] Working process: move the fixing block 2 and the locking nut 4 to the side close to the lifting buckle 5, place the lifting device in the middle of the flange 11, move the fixing block 2, engage the slot 1 on the fixing block 2 with the flange 11, then move the locking nut 4 to fix the position of the fixing block 2, and finally lift the lifting ring 6 with the crane hook to realize the transportation of the rotor.

[0029] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A rotor drum hanger, characterized in that: The invention comprises a hanging buckle (5), a connecting rod (3), a fixing block (2) and a locking nut (4); a plurality of connecting rods (3) are evenly distributed on the outer periphery of the hanging buckle (5); a fixing block (2) and a locking nut (4) are sleeved on the outer periphery of each connecting rod (3); the locking nut (4) is arranged close to the hanging buckle (5); the fixing block (2) and the locking nut (4) can move on the connecting rod (3) along the length direction of the connecting rod (3); a slot (1) is arranged at the bottom of the fixing block (2) corresponding to a flange (11); and a hanging ring (6) is arranged at the top of the hanging buckle (5).

2. The rotor drum hanger according to claim 1, characterized in that: A threaded hole is provided on the hanging buckle (5) corresponding to the connecting rod (3), and an external thread is provided on the outer periphery of the connecting rod (3) corresponding to the threaded hole on the hanging buckle (5); the connecting rod (3) and the hanging buckle (5) are detachably connected via the thread.

3. The rotor drum hanger according to claim 2, characterized in that: The number of connecting rods (3) is three.

4. The rotor drum hanger according to claim 3, characterized in that: A stopper (8) is provided at one end of the connecting rod (3) away from the hanging buckle (5) and corresponding to the fixing block (2).

5. The rotor drum hanger according to claim 1, characterized in that: The locking nut (4) is connected to the connecting rod (3) via threads.

6. The rotor drum hanger according to any one of claims 1 to 5, characterized in that: A through hole (7) is arranged on the upper part of the fixing block (2), and the connecting rod (3) is arranged to pass through the through hole (7).

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