A large rotor balance block installation positioning device

Abstract

The utility model discloses a large -scale rotor balance block installation positioning device relates to balance block installation technical field, including rotor shaft body, fixedly installed with coil seat on rotor shaft body, and the coil seat is wound with rotor coil, is installed with positioning mechanism on rotor shaft body, and the positioning mechanism is including the positioning ring hoop of setting on rotor shaft body, fixedly installed with positioning base on positioning ring hoop, rotates and is installed with positioning axis in positioning base, fixedly installed with worm on positioning axis, is set with the adjustment gap on positioning ring hoop, and the adjustment gap is interlocked with worm, fixedly installed with balance mechanism on positioning ring hoop, is set with the hole of going in and out on positioning base, and positioning axis one end sets up a character groove, this large -scale rotor balance block installation positioning device, through the cooperation of positioning mechanism and balance mechanism, can install balance block on rotor shaft body fast, and can reduce the risk that balance block separates.

Description

Technical Field

[0001] This utility model relates to the field of balance block installation technology, specifically a large rotor balance block installation and positioning device. Background Technology

[0002] The generator rotor is precision-machined from high-strength alloy steel forgings and wound with excitation windings. External direct current is supplied to the rotor windings through brushes and slip rings, forming a powerful electromagnet. The prime mover drives the rotor to rotate at high speed in the stator cavity. The rotating strong magnetic field cuts the outer stator windings, and according to the law of electromagnetic induction, a strong induced electromotive force is generated in the stator, realizing the key conversion of mechanical energy into electrical energy.

[0003] In the prior art, the authorized announcement number is CN201928098U, which discloses a rotor structure of a large direct-drive wind turbine dual generator, which consists of a rotor frame and a permanent magnet. The rotor frame is cylindrical in shape, and the permanent magnet is fixed on the inner side of the cylindrical surface of the rotor frame. The outer end of the cylindrical surface has an outer flange for mounting a flange, and the inner end has an inner flange for mounting to a hub.

[0004] The rotor shaft is installed inside the generator housing. To ensure good dynamic balance during high-speed rotation, specialized balance weights must be installed on the rotor shaft. These balance weights are typically fixed to specific locations on the rotor shaft using adhesive. However, when the generator operates under high load for extended periods, it generates a significant amount of heat. This heat is directly transferred to the adhesive, causing its performance to gradually deteriorate or even fail. Once the adhesive fails, the balance weights lose their fixing function and risk detaching from the rotor shaft. This not only affects the normal operation of the generator but may also lead to more serious mechanical failures. Utility Model Content

[0005] The purpose of this invention is to provide a large rotor balance block installation and positioning device to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large rotor balance block installation and positioning device, comprising a rotor shaft, a coil seat fixedly mounted on the rotor shaft, a rotor coil wound on the coil seat, a positioning mechanism mounted on the rotor shaft, the positioning mechanism comprising a positioning ring sleeved on the rotor shaft, a positioning base fixedly mounted on the positioning ring, a positioning shaft rotatably mounted inside the positioning base, a worm gear fixedly mounted on the positioning shaft, an adjustment notch provided on the positioning ring, the adjustment notch meshing with the worm gear, and a balancing mechanism fixedly mounted on the positioning ring.

[0007] Preferably, the positioning base has an inlet / outlet hole, one end of the positioning shaft has a slot, and a locking screw is threaded onto the positioning base.

[0008] Preferably, the positioning base has a rotating groove, and the positioning shaft is rotatably mounted on the positioning base through the rotating groove.

[0009] Preferably, the worm gear is rotatably mounted in the positioning base via a positioning shaft, the positioning shaft is fixedly mounted on the positioning base via a locking screw, one end of the positioning ring is fixedly mounted on the positioning base, and the other end of the positioning ring is movably mounted on the positioning base via an inlet / outlet hole.

[0010] Preferably, the balancing mechanism includes a positioning ring seat fixedly installed on the positioning ring hoop, a positioning screw fixedly installed on the positioning ring seat, a balancing block connected to the positioning screw, a mounting through hole opened in the middle of the balancing block, a pre-cut groove opened on the balancing block, and a fixing nut threadedly connected to the positioning screw.

[0011] Preferably, the positioning ring seat is fixed to the positioning ring hoop by welding.

[0012] Preferably, the surface of the balance block is coated with glue, and the balance block is fixed together by the glue.

[0013] Preferably, the positioning screw passes through the balance block via a mounting through hole, and the balance block is locked onto the positioning screw by a fixing nut.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. In this application, after rotating the positioning shaft, the positioning shaft drives the worm gear to perform a circular motion. When the worm gear performs a clockwise circular motion, the positioning ring is in a relaxed state; when the worm gear performs a counterclockwise circular motion, the positioning ring is in a tightened state, thereby installing the balancing mechanism in a suitable position on the rotor shaft. Compared with the method of fixing with glue, this method can reduce the risk of the balance weight detaching.

[0015] 2. In this application, the synergistic action of the positioning screw and the fixing nut secures the balance block to the positioning ring, which then positions the balance block appropriately on the rotor shaft to ensure dynamic balance. Furthermore, the pre-cut groove allows for easy removal of a portion of the balance block, enabling efficient adjustment of its mass and improving installation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the positioning mechanism of this utility model; Figure 4 This is a schematic diagram of the balancing mechanism of this utility model.

[0017] The markings in the diagram are: 1. Rotor shaft; 2. Rotor coil; 3. Coil seat; 4. Positioning mechanism; 401. Positioning ring; 402. Adjustment notch; 403. Positioning base; 404. Inlet / outlet hole; 405. Positioning shaft; 406. Worm gear; 407. Locking screw; 408. Slotted groove; 5. Balancing mechanism; 501. Positioning ring seat; 502. Positioning screw; 503. Pre-cut groove; 504. Balance block; 505. Mounting through hole; 506. Fixing nut. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a large rotor balance block installation and positioning device, including a rotor shaft 1, a coil seat 3 fixedly mounted on the rotor shaft 1, a rotor coil 2 wound on the coil seat 3, a positioning mechanism 4 mounted on the rotor shaft 1, and a balancing mechanism 5 fixedly mounted on the positioning ring 401. Through the coordinated use of the positioning mechanism 4 and the balancing mechanism 5, the balance block 504 can be quickly installed on the rotor shaft 1, and the risk of the balance block 504 detaching can be reduced.

[0020] Example 1: As Figure 2 and Figure 3 As shown, the positioning mechanism 4 includes a positioning ring 401 sleeved on the rotor shaft 1, a positioning base 403 fixedly installed on the positioning ring 401, a positioning shaft 405 rotatably installed inside the positioning base 403, a worm gear 406 fixedly installed on the positioning shaft 405, an adjustment notch 402 opened on the positioning ring 401, and the adjustment notch 402 meshes with the worm gear 406, an inlet / outlet hole 404 opened on the positioning base 403, a slot 408 opened at one end of the positioning shaft 405, a locking screw 407 threaded on the positioning base 403, a rotating groove opened on the positioning base 403, and the positioning shaft 405 rotatably installed on the positioning base 403 through the rotating groove.

[0021] Specifically, after the screwdriver is successfully connected to the slot 408, the positioning shaft 405 can be rotated. When the positioning shaft 405 is rotated, it drives the worm gear 406 to rotate. Specifically, when the worm gear 406 rotates clockwise, the positioning ring 401 loosens accordingly; conversely, when the worm gear 406 rotates counterclockwise, the positioning ring 401 tightens. This design allows the balancing mechanism 5 to be precisely installed in the ideal position on the rotor shaft 1. Compared to traditional glue-based fixing methods, this mechanical fixing method significantly reduces the risk of the balance block 504 falling off during operation, thereby improving the stability and safety of the entire device.

[0022] Example 2: Figure 2 and Figure 4 As shown, the balancing mechanism 5 includes a positioning ring seat 501 fixedly installed on the positioning ring hoop 401. A positioning screw 502 is fixedly installed on the positioning ring seat 501. A balance block 504 is connected to the positioning screw 502. A mounting through hole 505 is opened in the middle of the balance block 504. A pre-cut groove 503 is opened on the balance block 504. A fixing nut 506 is threadedly connected to the positioning screw 502. The positioning ring seat 501 is fixed to the positioning ring hoop 401 by welding. The surface of the balance block 504 is coated with glue, and the balance block 504 is fixed together by glue.

[0023] Specifically, the tight fit between the positioning screw 502 and the fixing nut 506 effectively and firmly fixes the balance block 504 onto the positioning ring 401. Furthermore, with the assistance of the positioning ring 401, the balance block 504 can be precisely installed at the appropriate position on the rotor shaft 1, ensuring that the rotor shaft 1 maintains good dynamic balance during operation. In addition, the pre-cut groove 503 allows operators to quickly and easily pry off a portion of the balance block 504, enabling rapid and precise adjustment of its mass, greatly improving installation efficiency and optimizing the speed and convenience of the entire installation process.

[0024] Working principle: The user can connect a screwdriver to the slot 408. After connecting the screwdriver, the positioning shaft 405 can be rotated. Rotating the positioning shaft 405 will drive the worm gear 406 to rotate. When the worm gear 406 rotates clockwise, the positioning ring 401 will loosen; when the worm gear 406 rotates counterclockwise, the positioning ring 401 will tighten, so that the balancing mechanism 5 can be installed in the appropriate position on the rotor shaft 1. Compared with glue fixation, this reduces the risk of the balance block 504 detaching. The positioning screw 502 and the fixing nut 506 can fix the balance block 504 to the positioning ring 401, and the positioning ring 401 is used to install the balance block 504 in the appropriate position on the rotor shaft 1, so that the rotor shaft 1 maintains dynamic balance. Moreover, the pre-cut groove 503 can quickly pry off a part of the balance block 504, thereby quickly adjusting the mass of the balance block 504 and improving the installation speed of the balance block 504.

[0025] It will be apparent to those skilled in the art that this utility model is not limited to the specific details of the exemplary embodiments listed above. In fact, without departing from the core spirit or essential characteristics of this utility model, those skilled in the art are fully capable of implementing this utility model in many other specific forms. Therefore, from any perspective, the provided embodiments should be considered as exemplary examples, and such examples are not restrictive. The scope of protection of this utility model is not defined by the foregoing description, but by the appended claims. Based on this principle, all variations and extensions that conform to the meaning and scope of the equivalent elements listed in the claims are intended to be included within the scope of protection of this utility model. Furthermore, it should be particularly noted that any reference numerals appearing in the claims should not be considered as limiting factors of the claims. These reference numerals are merely for illustrative purposes and should not be misunderstood as limiting the scope of the claims.

Claims

1. A large rotor balance block mounting and positioning device, comprising a rotor shaft (1), wherein a coil seat (3) is fixedly mounted on the rotor shaft (1), and a rotor coil (2) is wound on the coil seat (3), characterized in that: A positioning mechanism (4) is installed on the rotor shaft (1). The positioning mechanism (4) includes a positioning ring (401) sleeved on the rotor shaft (1). A positioning base (403) is fixedly installed on the positioning ring (401). A positioning shaft (405) is rotatably installed inside the positioning base (403). A worm gear (406) is fixedly installed on the positioning shaft (405). An adjustment notch (402) is opened on the positioning ring (401), and the adjustment notch (402) meshes with the worm gear (406). A balancing mechanism (5) is fixedly installed on the positioning ring (401).

2. The large rotor balance block installation and positioning device according to claim 1, characterized in that: The positioning base (403) has an inlet / outlet hole (404), and one end of the positioning shaft (405) has a slot (408). A locking screw (407) is threaded onto the positioning base (403).

3. The large rotor balance block installation and positioning device according to claim 2, characterized in that: The positioning base (403) is provided with a rotating groove, and the positioning shaft (405) is rotatably mounted on the positioning base (403) through the rotating groove.

4. The large rotor balance block installation and positioning device according to claim 3, characterized in that: The worm gear (406) is rotatably installed in the positioning base (403) via the positioning shaft (405). The positioning shaft (405) is fixedly installed on the positioning base (403) via the locking screw (407). One end of the positioning ring (401) is fixedly installed on the positioning base (403), and the other end of the positioning ring (401) is movably installed on the positioning base (403) via the inlet / outlet hole (404).

5. A large rotor balance block mounting and positioning device according to claim 4, characterized in that: The balancing mechanism (5) includes a positioning ring seat (501) fixedly installed on the positioning ring hoop (401), a positioning screw (502) fixedly installed on the positioning ring seat (501), a balancing block (504) connected to the positioning screw (502), an installation through hole (505) opened in the middle of the balancing block (504), a pre-cut groove (503) opened on the balancing block (504), and a fixing nut (506) threadedly connected to the positioning screw (502).

6. A large rotor balance block installation and positioning device according to claim 5, characterized in that: The positioning ring seat (501) is fixed to the positioning ring hoop (401) by welding.

7. A large rotor balance block installation and positioning device according to claim 6, characterized in that: The surface of the balance block (504) is coated with glue, and the balance block (504) is fixed together by the glue.

8. A large rotor balance block installation and positioning device according to claim 7, characterized in that: The positioning screw (502) passes through the mounting through hole (505) and passes through the balance block (504), and the balance block (504) is locked onto the positioning screw (502) by the fixing nut (506).

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