Auxiliary hoisting tool based on generator rotor magnetic pole

Abstract

The utility model discloses an auxiliary hoisting tool based on a generator rotor magnetic pole, which comprises a support frame (1), one end of the support frame (1) is provided with a base (2), the other end of the support frame (1) is provided with a hoisting ring (3), the middle part of the support frame (1) is respectively provided with a limiting plate (4) and a plurality of clamping components, the limiting plate (4) is used for abutting against the step surface of the rotor magnetic pole, and the clamping components are used for clamping the step surface of the rotor magnetic pole. The clamping assembly is used for being buckled in a long groove of a rotor magnetic pole and pulling the rotor magnetic pole along with rotation of the supporting frame (1). The clamping assembly comprises a transverse pipe (5) detachably connected with the supporting frame (1), the transverse pipe (5) and the supporting frame (1) are connected through a connecting part (6), two pull rods (7) are arranged on the transverse pipe (5) side by side, and the ends of the pull rods (7) extend to the long grooves of the rotor magnetic poles and are connected with the rotor magnetic poles in a buckled mode. The device has the advantages of being convenient to operate and high in safety.

Description

Technical Field

[0001] The utility model relates to a hoisting tool for a rotor magnetic pole, in particular to an auxiliary hoisting tool based on a generator rotor magnetic pole. Background Art

[0002] During the assembly of a pumped-storage power station generator, workers must hoist the rotor poles sequentially into the installation shaft of the energy storage unit and secure them. Due to the relatively heavy weight of the rotor poles and the narrow installation space within the shaft, specialized hoisting tools are required to ensure they do not collide with other components within the shaft. On this basis, a manufacturer has developed a new lifting tool, which is mainly composed of an upper hanger, a lower hanger, a connecting rod and a strap. The upper hanger and the lower hanger respectively squeeze and limit the rotor pole from the upper and lower sides, and the upper hanger and the lower hanger are connected to each other through the connecting rods located on the left and right sides of the rotor pole. The rotor pole and the connecting rod are then tied together with a strap, so that the rotor pole is lifted and lifted by the cooperation of the upper hanger and the lower hanger, and the strap is used to prevent it from detaching from the hanger, thereby realizing the lifting function while reducing the space occupied by the lifting tool on the radial position of the rotor pole, ensuring the assembly effect of the rotor pole in a small space.

[0003] However, the problem encountered in the actual use of this lifting tool is that, since the rotor poles need to be placed flat on the ground in an idle state, and the upper and lower hangers are limited by their weight and lifting action and cannot be directly installed on the rotor poles in this state, the operator needs to first lift the rotor poles to a vertical state during installation, and then move the upper and lower hangers to the upper and lower sides of the rotor poles to complete the assembly. The above lifting action not only requires the cooperation of multiple hoists, resulting in interference and obstruction between different hoists during the use process, but also because the rotor poles need to be suspended for a long time during operation, they are prone to deviation and falling, posing a huge safety hazard.

[0004] Therefore, the existing method of hoisting the rotor poles has the problems of great operational difficulty and low safety. Utility Model Content

[0005] The purpose of the utility model is to provide an auxiliary lifting tool based on the magnetic poles of the generator rotor, which has the characteristics of convenient operation and high safety.

[0006] The technical solution of the present utility model is: an auxiliary lifting tool based on the generator rotor pole, including a support frame, a base is provided at one end of the support frame, a lifting ring is provided at the other end of the support frame, and a limit plate and a plurality of clamping components are respectively provided in the middle of the support frame, the limit plate is used to abut against the step surface of the rotor pole, and the clamping component is used to be buckled in the long groove of the rotor pole and to pull the rotor pole as the support frame rotates; the clamping component includes a transverse tube that is detachably connected to the support frame, the transverse tube and the support frame are connected to each other via a connecting part, and two pull rods are provided side by side on the transverse tube, and the ends of the pull rods extend to the long groove of the rotor pole and are buckled and connected to the rotor pole.

[0007] In the aforementioned auxiliary lifting tool based on the generator rotor pole, the support frame includes two vertical rods arranged side by side, the vertical rods are connected to each other via a number of reinforcing ribs, and the base and the limit plate are both welded to the support frame.

[0008] In the aforementioned auxiliary lifting tool based on the generator rotor pole, the horizontal tube is located at the interval between the two vertical rods, the two ends of the horizontal tube are threadedly connected to the connecting part, and the end of the connecting part passes through the vertical rods to form a cover plate.

[0009] In the aforementioned auxiliary lifting tool based on the generator rotor pole, an installation gap is formed between the base and the end face of the rotor pole, and a slot is provided on the base on one side of the installation gap, and a pulley group is snap-connected in the slot. The pulley group is used to slide the lower hanger into the installation gap.

[0010] In the aforementioned auxiliary lifting tool based on the generator rotor pole, the pulley block includes two pulley plates arranged side by side, one end of the pulley plate extends to the outside of the base, and a plurality of rollers are arranged side by side on the pulley plate.

[0011] In the aforementioned auxiliary lifting tool based on the generator rotor pole, a sleeve is provided on one side of the horizontal tube, and the pull rod and the sleeve are nested inside and outside. One end of the pull rod passes through the pull rod and is connected to a T-shaped clamping joint, and the other end of the pull rod passes through the horizontal tube and is threadedly connected to a tightening nut. The middle parts of the pull rod and the sleeve are connected to each other through a pin.

[0012] The aforementioned auxiliary lifting tool based on the generator rotor pole also includes a strap detachably connected to the support frame, and the strap is used to support and fix the support frame on the heavy facility.

[0013] Compared with the prior art, the present invention has the following features:

[0014] (1) The present invention cooperates with the support frame, the locking assembly and the limit plate in the structure, so that when in use, it can be first buckled onto the horizontal rotor pole, and then the step surface of the rotor pole is lifted and limited after being hoisted, and space is reserved for the installation of the upper hanger and the lower hanger. On the one hand, it avoids the risk of the rotor pole falling during the rotation and hoisting process, and on the other hand, it can complete the installation of the hoisting tool in the non-hoisting state, that is, improve the safety of the overall action; when the hoisting tool is installed, the operator can pull the pull rod out from the rotor pole, so that the operator can use the hoisting tool to lift the rotor pole and complete the subsequent installation process in a conventional manner, which is convenient for the operator's operation;

[0015] (2) Through the structural coordination of the pulley block and the base, the lower hanger can be first placed on the pulley plate outside the rotor pole by hoisting during installation, and then horizontally slid under the rotor pole to complete the installation. On the one hand, it can further reduce the installation difficulty of the operator, and on the other hand, the installation position of the lower hanger can also be fine-tuned as needed, thereby improving the installation efficiency of the hoisting tool;

[0016] (3) The connection structure between the sleeve and the pull rod allows the pull rod to be extended and rotated on the sleeve, so that the operator can first place the support frame as a whole on the top of the rotor pole, and then extend and rotate the pull rod to make it extend into the long slot and engage the rotor pole; when the lifting tool is installed, the operator can directly pull out the pull rod after rotating it, thereby improving the efficiency of unlocking the rotor pole and improving its operation convenience;

[0017] Therefore, the utility model has the characteristics of convenient operation and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view of Example 1;

[0019] Figure 2 This is a schematic diagram of the installation of Example 1 before it is hoisted to a vertical state;

[0020] Figure 3 This is a schematic diagram of the installation of Example 1 after it is hoisted to a vertical state;

[0021] Figure 4 This is a schematic diagram of the installation of Example 2 after being hoisted to a vertical state;

[0022] Figure 5 It is a structural diagram of the locking assembly in Example 2.

[0023] The marks in the accompanying drawings are: 1-support frame, 2-base, 3-lifting ring, 4-limiting plate, 5-horizontal tube, 6-connecting part, 7-pull rod, 8-pulley plate, 9-roller, 10-sleeve, 11-tightening nut, 12-pin, 13-binding strap, 101-vertical rod, 102-reinforcement rib, 201-slot. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0025] Example 1. An auxiliary lifting tool based on the generator rotor magnetic pole, comprising: Figure 1-3 As shown, it includes a support frame 1, one end of the support frame 1 is provided with a base 2, the other end of the support frame 1 is provided with a hanging ring 3, the middle part of the support frame 1 is respectively provided with a limit plate 4 and a plurality of snap-fit ​​components, the limit plate 4 is used to abut against the step surface of the rotor pole, the snap-fit ​​component is used to be buckled into the long slot of the rotor pole and to pull the rotor pole as the support frame 1 rotates; the snap-fit ​​component includes a transverse tube 5 that is detachably connected to the support frame 1, the transverse tube 5 and the support frame 1 are connected to each other via a connecting portion 6, two pull rods 7 are provided side by side on the transverse tube 5, the ends of the pull rods 7 extend to the long slot of the rotor pole and are snap-fitted to connect the rotor pole, and the cross-sectional shape of the long slot is T-shaped.

[0026] The support frame 1 includes two vertical rods 101 arranged side by side. The vertical rods 101 are connected to each other via a plurality of reinforcing ribs 102 . The base 2 and the limiting plate 4 are both welded to the support frame 1 .

[0027] The horizontal tube 5 is located at the interval between the two vertical rods 101 , and both ends of the horizontal tube 5 are threadedly connected to the connecting portion 6 , and the end of the connecting portion 6 passes through the vertical rods 101 to form a cover plate.

[0028] An installation gap is formed between the base 2 and the end face of the rotor pole. A slot 201 is provided on the base 2 on one side of the installation gap. A pulley block is fastened in the slot 201 and is used to slide the lower hanger into the installation gap.

[0029] The pulley assembly includes two pulley plates 8 arranged side by side. One end of the pulley plate 8 extends to the outside of the base 2. A plurality of rollers 9 are arranged side by side on the pulley plate 8.

[0030] The support frame 1 further comprises a strap 13 detachably connected to the support frame 1 , and the strap 13 is used to prop the support frame 1 against and fix it on heavy equipment.

[0031] When using this embodiment, the operator first hoists the support frame 1 to the top of the rotor pole, and aligns the limit plate 4 with the stepped surface of the rotor pole, and the base 2 extends to the outside of the rotor pole and aligns with the ground. After the support frame 1 is placed, the operator inserts the locking assembly from the side of the rotor pole away from the base 2, so that the pull rod 7 and the long slot of the rotor pole engage with each other, then moves horizontally to the connection position and connects to the support frame 1 through the connecting portion 6. The cooperation between the limit plate 4 and the pull rod 7 keeps the rotor pole in a limited state relative to the support frame 1.

[0032] After the locking assembly is installed, the operator lifts the support frame 1 from a horizontal position to a vertical position through the cooperation of the lifting ring 3 and the sling, and places the support frame 1 against the facade of the heavy equipment, thereby using the heavy equipment and the straps 13 to limit the support frame 1, preventing the support frame 1 from tipping over along with the rotor poles during subsequent operations. In the vertical position, the support frame 1 can limit the rotor poles through the limiting plate 4 and the pull rod 7, so that the rotor poles remain vertical in this state, and space is left for the installation of the upper and lower hangers. The operator can then remove the sling from the lifting ring 3 and sling the upper and lower hangers to the desired installation position. When installing the lower hanger, the operator can first insert the pulley plate 8 into the slot 201, and then slide the lower hanger directly under the rotor poles and install it. During the installation of the connecting rod of the lifting tool, the operator can also use the jack to lift the lower hanger so that it fits against the bottom surface of the rotor pole, thereby ensuring the squeezing and limiting effect of the upper and lower hangers on the rotor poles.

[0033] After the lifting tool is installed, the operator unscrews the connection part 6 and slides the pull rod 7 out from the rotor pole to release the limit on the rotor pole, so that the lifting tool can lift the rotor pole from the support frame 1 through the lifting tool and perform subsequent installation in the conventional manner.

[0034] Example 2. An auxiliary lifting tool based on the generator rotor magnetic pole, comprising: Figure 4-5 As shown, it includes a support frame 1, one end of the support frame 1 is provided with a base 2, the other end of the support frame 1 is provided with a hanging ring 3, the middle part of the support frame 1 is respectively provided with a limit plate 4 and a plurality of snap-fit ​​components, the limit plate 4 is used to abut against the step surface of the rotor pole, the snap-fit ​​component is used to be buckled into the long slot of the rotor pole and to pull the rotor pole as the support frame 1 rotates; the snap-fit ​​component includes a transverse tube 5 that is detachably connected to the support frame 1, the transverse tube 5 and the support frame 1 are hinged to each other through a connecting portion 6, and two pull rods 7 are provided side by side on the transverse tube 5, the end of the pull rod 7 extends to the long slot of the rotor pole and is buckled and connected to the rotor pole, and the cross-sectional shape of the long slot is T-shaped.

[0035] The support frame 1 includes two vertical rods 101 arranged side by side. The vertical rods 101 are connected to each other via a plurality of reinforcing ribs 102 . The base 2 and the limiting plate 4 are both welded to the support frame 1 .

[0036] The horizontal tube 5 is located at the interval between the two vertical rods 101 , and both ends of the horizontal tube 5 are threadedly connected to the connecting portion 6 , and the end of the connecting portion 6 passes through the vertical rods 101 to form a cover plate.

[0037] An installation gap is formed between the base 2 and the end face of the rotor pole. A slot 201 is provided on the base 2 on one side of the installation gap. A pulley block is fastened in the slot 201 and is used to slide the lower hanger into the installation gap.

[0038] The pulley assembly includes two pulley plates 8 arranged side by side. One end of the pulley plate 8 extends to the outside of the base 2. A plurality of rollers 9 are arranged side by side on the pulley plate 8.

[0039] A sleeve 10 is provided on one side of the cross tube 5, and the pull rod 7 and the sleeve 10 are nested inside and outside. One end of the pull rod 7 passes through the pull rod 7 and is connected to a T-shaped clamping joint, and the other end of the pull rod 7 passes through the cross tube 5 and is threadedly connected to a tightening nut 11. The middle parts of the pull rod 7 and the sleeve 10 are connected to each other through a pin 12; the pin 12 can be a screw rod, and the end of the screw rod is connected to a nut for fixation after passing through the pull rod 7 and the sleeve 10.

[0040] Compared with Example 1, this embodiment further defines the structure of the snap-fit ​​assembly, so that the snap-fit ​​assembly can be separately assembled and unassembled during use, thereby improving the operating efficiency of the operator. When the support frame 1 is placed, the snap-fit ​​assembly is first placed on the top of the rotor pole together with the support frame 1, and then the operator rotates the pull rod 7 and extends it into the long slot of the rotor pole, and then rotates the pull rod 7 again to engage it with the long slot and fix it with the pin 12. After the pull rod 7 is engaged, the operator screws in the tightening nut 11 to tighten the pull rod 7, so that the pull rod 7 can be completely fitted with the inner wall surface of the long slot in this state, thereby achieving the installation of the pull rod 7.

[0041] When the lifting tool is installed on the outside of the rotor pole, the operator can unlock the pull rod 7 in the same way and rotate it to pull it out, thereby releasing the limit on the rotor pole.

Claims

1. An auxiliary lifting tool based on the generator rotor pole, characterized by: The invention comprises a support frame (1), wherein one end of the support frame (1) is provided with a base (2), the other end of the support frame (1) is provided with a hanging ring (3), and the middle part of the support frame (1) is provided with a limit plate (4) and a plurality of snap-fit ​​components, wherein the limit plate (4) is used to abut against the step surface of the rotor pole, and the snap-fit ​​components are used to be buckled into the long slot of the rotor pole and pull the rotor pole as the support frame (1) rotates; the snap-fit ​​components include a transverse tube (5) detachably connected to the support frame (1), the transverse tube (5) and the support frame (1) are connected to each other via a connecting portion (6), and two pull rods (7) are arranged side by side on the transverse tube (5), and the ends of the pull rods (7) extend to the long slot of the rotor pole and are snap-fitted to the rotor pole.

2. The auxiliary lifting tool based on the generator rotor pole according to claim 1, characterized in that: The support frame (1) comprises two vertical rods (101) arranged side by side, the vertical rods (101) are connected to each other via a plurality of reinforcing ribs (102), and the base (2) and the limiting plate (4) are both welded to the support frame (1).

3. The auxiliary lifting tool based on the generator rotor magnetic pole according to claim 2, characterized in that: The horizontal tube (5) is located at the interval between the two vertical rods (101), and both ends of the horizontal tube (5) are threadedly connected to the connecting portion (6), and the end of the connecting portion (6) passes through the vertical rods (101) to form a cover plate.

4. The auxiliary lifting tool based on the generator rotor pole according to claim 1, characterized in that: An installation gap is formed between the base (2) and the end surface of the rotor magnetic pole. A clamping groove (201) is provided on the base (2) on one side of the installation gap. A pulley block is buckled and connected in the clamping groove (201). The pulley block is used to slide the lower hanger into the installation gap.

5. The auxiliary lifting tool based on the generator rotor magnetic pole according to claim 4, characterized in that: The pulley assembly comprises two pulley plates (8) arranged side by side, one end of the pulley plate (8) extends to the outside of the base (2), and a plurality of rollers (9) are arranged side by side on the pulley plate (8).

6. The auxiliary lifting tool based on the generator rotor magnetic pole according to claim 1, characterized in that: A sleeve (10) is provided on one side of the transverse tube (5), and the pull rod (7) and the sleeve (10) are nested inside and outside. One end of the pull rod (7) passes through the pull rod (7) and is connected to a T-shaped clamping joint, and the other end of the pull rod (7) passes through the transverse tube (5) and is threadedly connected to a tightening nut (11). The middle parts of the pull rod (7) and the sleeve (10) are connected to each other via a pin (12).

7. The auxiliary lifting tool based on the generator rotor pole according to claim 1, characterized in that: It also includes a strap (13) detachably connected to the support frame (1), and the strap (13) is used to push the support frame (1) against and fix it on heavy facilities.

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