A drilling device for rotor unbalance removal

Abstract

The utility model discloses a kind of drilling devices for removing weight balance of rotor, including drilling machine and setting on the jig of drilling machine workbench, rotor is carried on the jig, the drill head of drilling machine is towards rotor, jig includes bottom plate, pulley, rotating shaft, locking nut, clamping block, bearing seat and adjusting bolt, two pulleys and two clamping blocks are slidably installed at the both ends of rotating shaft, and clamping block is located at the inner side of pulley, pulley is located on bottom plate, two locking nuts are threadedly installed at the outer end of rotating shaft, two clamping blocks abut against one end of bearing seat, the other end of bearing seat is connected with bottom plate by adjusting bolt.The device in the drilling of removing weight of rotor, the jig used does not need to loosen clamp operation, only needs to place rotor directly on jig, slightly fixed during, such as by means of operation worker hand holds rotating shaft outer end, avoid loosening clamp operation, greatly reduce the labor intensity of worker, improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of rotor processing equipment, and in particular to a drilling device for rotor weight reduction and balancing. Background Technology

[0002] After the motor rotor is assembled, it needs to undergo dynamic balancing testing and verification. Currently, most methods for correcting dynamic balancing involve removing excess material, specifically drilling holes at corresponding locations on the rotor to achieve the required dynamic balance. The specific process involves first placing the rotor on a dynamic balancing machine for testing, then marking the corresponding positions on the rotor, and finally placing the rotor on a drilling machine to drill holes, removing excess weight and achieving dynamic balance.

[0003] In the actual drilling process of the rotor, it is necessary to use a clamp to fix the rotor, such as by using a chuck, vise or other special tools to clamp it. Each clamping and loosening requires special operation, which is time-consuming, labor-intensive and delays work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a drilling device for rotor de-weighting and balancing, so as to solve the problem that the clamps used in actual rotor de-weighting drilling require special operation for clamping and loosening, which is time-consuming, labor-intensive and delays work efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A drilling device for rotor weight reduction and balancing includes a drilling machine and a jig disposed on the worktable of the drilling machine, wherein the jig carries a rotor, and the drill bit of the drilling machine faces the rotor; The fixture includes a base plate, pulleys, a rotating shaft, locking nuts, clamping blocks, a bearing seat, and adjusting bolts. The two pulleys and the two clamping blocks are slidably mounted on both ends of the rotating shaft, with the clamping blocks located inside the pulleys and the pulleys located on the base plate. The two locking nuts are threaded onto the outer ends of the rotating shaft, and the two clamping blocks abut against one end of the bearing seat. The other end of the bearing seat is connected to the base plate via the adjusting bolts.

[0006] A further technical solution is: the support base includes a V-shaped plate, a backing plate, a connecting plate, and a horizontal plate. The V-shaped plate and the backing plate are both installed at one end of the connecting plate and located at the lower end of the connecting plate. The backing plate is located on the lower side of the V-shaped plate. The horizontal plate is installed at the other end of the connecting plate. The adjusting bolt is set on the horizontal plate.

[0007] A further technical solution is that the center of gravity of the bearing seat is located on the side of the rotating shaft away from the adjusting bolt.

[0008] A further technical solution is that the clamping block consists of a collar and a protrusion, the collar being slidably mounted on the rotating shaft, and the protrusion abutting against the bearing seat.

[0009] A further technical solution is that the backing plate is provided with a central hole that matches the central shaft of the rotor.

[0010] A further technical solution is that a support plate is provided between the back plate and the connecting plate.

[0011] A further technical solution is: the base plate is provided with a limiting groove and a limiting block, and the limiting block is connected to the limiting groove by screws.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: This utility model proposes a drilling device for rotor de-weighting and balancing. In the process of drilling holes for rotor de-weighting, the jig used does not require loosening or loosening. The rotor can be placed directly on the jig and slightly fixed during the process, for example, by the operator holding the outer end of the shaft. This avoids loosening or loosening, greatly reduces the labor intensity of workers, and improves processing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a drilling device for rotor weight reduction and balancing according to the present invention.

[0014] Figure 2 This utility model Figure 1 A schematic diagram of the structure from the perspective of an explosion.

[0015] Figure 3 This utility model Figure 1 Schematic diagram of the middle bearing seat.

[0016] Reference numerals: 1. Drill bit; 2. Fixture; 3. Rotor; 4. Base plate; 5. Pulley; 6. Shaft; 7. Locking nut; 8. Clamping block; 9. Bearing seat; 10. Adjusting bolt; 11. V-shaped plate; 12. Backing plate; 13. Connecting plate; 14. Horizontal plate; 15. Collar; 16. Protrusion; 18. Limiting groove; 19. Limiting block; 20. Screw. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0023] This implementation example Figure 1 , Figure 2 and Figure 3 As shown, a drilling device for rotor weight reduction and balancing includes a drilling machine and a tool 2 disposed on the worktable of the drilling machine. The tool 2 supports a rotor 3, and the drill bit 1 of the drilling machine faces the rotor 3. The fixture 2 includes a base plate 4, pulleys 5, a rotating shaft 6, locking nuts 7, clamping blocks 8, a bearing seat 9, and adjusting bolts 10. The two pulleys 5 and the two clamping blocks 8 are slidably installed at both ends of the rotating shaft 6, with the clamping blocks 8 located inside the pulleys 5. The pulleys 5 are located on the base plate 4. The two locking nuts 7 are threaded onto the outer ends of the rotating shaft 6. The two clamping blocks 8 abut against one end of the bearing seat 9, and the other end of the bearing seat 9 is connected to the base plate 4 through the adjusting bolts 10.

[0024] After the rotor 3 is tested on the dynamic balancing machine, it is marked and then placed on the bearing seat 9. During this process, the attitude of the rotor 3 can be adjusted by adjusting the bolt 10, which specifically changes the position of the circumferential surface of the rotor 3 to adapt to the weight reduction requirements of the rotor 3. After adjusting the attitude and position of the rotor 3, the drill bit 1 of the drilling machine can be controlled to perform weight reduction operation on the same batch of rotors 3.

[0025] Preferably, the bearing seat 9 includes a V-shaped plate 11, a backing plate 12, a connecting plate 13, and a horizontal plate 14. The V-shaped plate 11 and the backing plate 12 are both installed at one end of the connecting plate 13 and located at the lower end of the connecting plate 13. The backing plate 12 is located on the lower side of the V-shaped plate 11. The horizontal plate 14 is installed at the other end of the connecting plate 13, and the adjusting bolt 10 is provided on the horizontal plate 14.

[0026] The rotor 3 is placed on the V-shaped plate 11, and one end of the central shaft of the rotor 3 is stuck in the central hole of the backing plate 12. The height of the connecting plate 13 can be adjusted by adjusting the bolt 10, thereby adjusting the position of the rotor 3.

[0027] Preferably, the center of gravity of the bearing seat 9 is located on the side of the rotating shaft 6 away from the adjusting bolt 10.

[0028] The center of gravity of the bearing seat 9 is offset, the horizontal plate 14 and the connecting plate 13 are set separately, the connecting plate 13 acts as a bridge, and the horizontal plate restricts it, which makes it easier to adjust the attitude of the rotor 3 by adjusting the bolt 10.

[0029] Preferably, the clamping block 8 consists of a collar 15 and a protrusion 16, with the collar 15 slidably mounted on the rotating shaft 6 and the protrusion 16 abutting against the bearing seat 9.

[0030] The collar 15 can slide on the rotating shaft 6. Under the action of the locking nut 7, the two collars 15 move towards each other, and then clamp the bearing seat 9 through the protrusion 16.

[0031] Preferably, the backing plate 12 is provided with a central hole that matches the central shaft of the rotor 3.

[0032] Preferably, a support plate 17 is provided between the backing plate 12 and the connecting plate 13.

[0033] Preferably, the base plate 4 is provided with a limiting groove 18 and a limiting block 19, and the limiting block 19 is connected to the limiting groove 18 by screws 20.

[0034] Preferably, the limiting block 19 can clamp and limit the bearing seat 9 on both sides, ensuring the stability of the tooling 2 during drilling and weight removal.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drilling device for rotor weight reduction and balancing, characterized in that: The system includes a drilling machine and a tool (2) mounted on the worktable of the drilling machine, the tool (2) supporting a rotor (3), and the drill bit (1) of the drilling machine facing the rotor (3). The fixture (2) includes a base plate (4), pulleys (5), a rotating shaft (6), locking nuts (7), clamping blocks (8), a bearing seat (9), and adjusting bolts (10). The two pulleys (5) and the two clamping blocks (8) are slidably installed at both ends of the rotating shaft (6), and the clamping blocks (8) are located inside the pulleys (5). The pulleys (5) are located on the base plate (4). The two locking nuts (7) are threadedly installed on the outer end of the rotating shaft (6). The two clamping blocks (8) abut against one end of the bearing seat (9). The other end of the bearing seat (9) is connected to the base plate (4) through the adjusting bolts (10).

2. The drilling device for rotor weight reduction and balancing according to claim 1, characterized in that: The support base (9) includes a V-shaped plate (11), a backing plate (12), a connecting plate (13), and a horizontal plate (14). The V-shaped plate (11) and the backing plate (12) are both installed at one end of the connecting plate (13) and located at the lower end of the connecting plate (13). The backing plate (12) is located on the lower side of the V-shaped plate (11). The horizontal plate (14) is installed at the other end of the connecting plate (13). The adjusting bolt (10) is set on the horizontal plate (14).

3. The drilling device for rotor de-weighting and balancing according to claim 1, characterized in that: The center of gravity of the bearing seat (9) is located on the side of the rotating shaft (6) away from the adjusting bolt (10).

4. The drilling device for rotor de-weighting and balancing according to claim 1, characterized in that: The clamping block (8) consists of a collar (15) and a protrusion (16). The collar (15) is slidably mounted on the rotating shaft (6), and the protrusion (16) abuts against the bearing seat (9).

5. The drilling device for rotor de-weighting and balancing according to claim 2, characterized in that: The backing plate (12) is provided with a central hole that matches the central shaft of the rotor (3).

6. The drilling device for rotor weight removal and balancing according to claim 2, characterized in that: A support plate (17) is provided between the back plate (12) and the connecting plate (13).

7. The drilling device for rotor de-weighting and balancing according to claim 1, characterized in that: The base plate (4) is provided with a limiting groove (18) and a limiting block (19), and the limiting block (19) is connected to the limiting groove (18) by screws (20).

Images