Rotor dynamic balancing weight angle measurement indicating device

Abstract

The application relates to a rotor dynamic balance counterweight angle measurement indicating device, which comprises a support arranged opposite to the end face of a rotor and an angle ruler installed on the support, the angle ruler comprises a main ruler and a sub-ruler which are hingedly connected, the main ruler is vertically installed on the support, the hinge joint of the main ruler and the sub-ruler is located on the axis of the rotor, the sub-ruler rotates along the vertical direction perpendicular to the axis of the rotor, and the included angle between the sub-ruler and the main ruler is a placing included angle for installing a balance block; the top of the main ruler and the top of the sub-ruler are both installed with a line projection angle gauge, the line projection angle gauge installed on the main ruler horizontally projects a line to the rotor, the axis of the rotor is located on the vertical straight line projected by the line projection angle gauge, and the intersection of the straight line horizontally projected by the line projection angle gauge installed on the sub-ruler and the debugging ring groove of the rotor is the installation position of the balance block. The application accurately finds the installation position of the balance block through the angle ruler and the line projection angle gauge, and improves the installation position precision of the balance block.

Description

Technical Field

[0001] This application relates to the field of rotor balancing technology, and in particular to a rotor dynamic balancing counterweight angle measuring and indicating device. Background Technology

[0002] When the rotor's central principal axis of inertia does not coincide with the axis of rotation, the rotor will vibrate due to its own mass imbalance. This vibration caused by imbalance is a major cause of vibration, noise, and mechanical damage in mechanical equipment. Therefore, rotors of equipment such as subway traction motors typically require dynamic balancing tests during production. This is done by adding or removing counterweights to correct the rotor's imbalance, ensuring that the rotor's central principal axis of inertia coincides with the axis of rotation, thus achieving balance.

[0003] Currently, a test ring groove for installing balance blocks is coaxially opened on the end face of the rotor. After the rotor undergoes dynamic balancing test, the number of balance blocks and the position angle of the balance blocks are calculated. Then, the staff installs the balance blocks in the corresponding test ring groove.

[0004] However, the position and angle of the balance block are usually measured manually by workers. The position accuracy during measurement will have a certain error. After the balance block is installed at the specified position and angle, it will affect the rotor debugging effect, reduce the probability of the rotor imbalance meeting the standard, thereby increasing the number of rotor debugging times, increasing the number of balance blocks installed on the rotor, and reducing the efficiency of rotor dynamic balancing test. Summary of the Invention

[0005] To improve the installation accuracy of the counterweight, this application provides a rotor dynamic balancing counterweight angle measuring and indicating device.

[0006] The rotor dynamic balance counterweight angle measuring and indicating device provided in this application adopts the following technical solution:

[0007] A rotor dynamic balancing counterweight angle measuring and indicating device, comprising:

[0008] By adopting the above technical solution, a bracket is arranged facing the end face of the rotor and an angle ruler is installed on the bracket. The angle ruler includes a main ruler rod and a secondary ruler rod that are hinged to each other. The main ruler rod is vertically installed on the bracket. The hinge point of the main ruler rod and the secondary ruler rod is located on the axis of the rotor. The secondary ruler rod rotates along a vertical plane perpendicular to the rotor axis and the included angle between the secondary ruler rod and the main ruler rod is the placement angle for installing the balance block.

[0009] A projection angle meter is installed on the top of both the main ruler and the secondary ruler. The projection angle meter on the main ruler projects a horizontal line onto the rotor, so that the rotor's axis is located on the vertical straight line projected by the projection angle meter. The projection angle meter on the secondary ruler projects a horizontal line onto the rotor, and the intersection of the straight line projected by the projection angle meter and the rotor's adjustment ring groove is the installation position of the balance block.

[0010] By adopting the above technical solution, after knowing the position angle of the balance block, the position of the angle gauge is adjusted so that the rotor's axis is first aligned with the vertical straight line projected by the projection angle instrument on the main scale rod. Then, the position of the angle instrument is adjusted so that the hinge point of the main scale rod and the auxiliary scale rod is on the rotor's axis. Then, the auxiliary scale rod is rotated until the angle between the auxiliary scale rod and the main scale rod is the position angle of the balance block. At this point, the intersection of the straight line projected by the projection angle instrument on the auxiliary scale rod and the rotor's adjustment ring groove is the installation position of the balance block, thus accurately finding the installation position of the balance block without the need for manual measurement, thereby improving the installation position accuracy of the balance block.

[0011] Optionally, the bracket includes a support base, a vertical slide rod, a vertical slide block, an adjusting support rod, and a mounting base. The vertical slide rod is mounted on the support base, the vertical slide block is vertically slidably mounted on the vertical slide rod, the adjusting support rod is horizontally slidably connected to the vertical slide block, and one end of the adjusting support rod is connected to a mounting base for mounting an angle gauge.

[0012] By adopting the above technical solution, the vertical position of the angle ruler can be adjusted by using the vertical slide rod and the vertical slide block, and the horizontal position of the angle ruler can be adjusted by adjusting the support rod and the mounting base, so as to improve the structural flexibility of the indicating device, facilitate the adjustment of the position of the angle ruler, and improve the indicating accuracy of the position of the balance block.

[0013] Optionally, one end of the adjusting support rod connecting mounting base is provided with a limiting slide rod, the limiting slide rod is provided with a limiting slider, and the limiting slide rod is provided with a limiting groove for sliding connection of the limiting slider, the limiting groove being arranged along the rotation trajectory parallel to the auxiliary ruler rod.

[0014] By adopting the above technical solution, since only the main ruler rod and the mounting base are fixedly connected, the rotation of the secondary ruler rod will cause the angle ruler and the entire support to wobble. This wobble will cause the straight line projected by the secondary ruler rod to wobble. Therefore, in order to reduce the wobble amplitude when the secondary ruler rod rotates, the sliding direction of the secondary ruler rod is guided by the limiting slide rod and the limiting slider. At the same time, the connection area between the secondary ruler rod and the support is increased, thereby increasing the connection strength between the angle ruler and the support and reducing the wobble amplitude when the secondary ruler rod rotates.

[0015] Optionally, the limiting slider is threadedly connected to a limiting screw, which passes through a limiting groove and abuts against a limiting slide bar to limit the angle between the auxiliary scale bar and the main scale bar.

[0016] By adopting the above technical solution, when the auxiliary ruler rod rotates to the specified angle, the position of the limiting slider is limited by the limiting screw against the limiting slide rod, so that the staff can position the auxiliary ruler rod after adjusting its position, which facilitates the subsequent installation of the balance block.

[0017] Optionally, the other end of the adjusting support rod is located on the side of the vertical slide away from the mounting base. A balance spring is provided at the other end of the adjusting support rod. One end of the balance spring is connected to the adjusting support rod, and the other end of the balance spring is connected to a balance slide plate. A balance groove is provided on the support base to slide in connection with the balance slide plate. The balance groove is arranged horizontally along a direction perpendicular to the rotor axis. The balance spring is arranged vertically and connected to the side of the balance slide plate away from the support base. An adjusting component is provided on the support base to limit the sliding distance of the balance slide plate.

[0018] By adopting the above technical solution, the end of the adjusting rod with the mounting base is connected to the angle ruler and the projection angle meter. In order to balance both ends of the adjusting rod, thereby strengthening the structural balance of the entire indicating device and reducing the swaying amplitude of the angle ruler during rotation, a balance spring needs to be connected to the other end of the adjusting rod. The balance spring is vertically arranged and connected to the balance slide plate, so that a rectangular frame is formed between the adjusting rod, the vertical slide rod, the balance slide plate and the balance spring, so that the balance spring applies a vertical downward pulling force to the other end of the adjusting rod, reducing the degree of center offset of the indicating device.

[0019] Optionally, the adjusting component includes an adjusting screw, which is arranged along a sliding direction parallel to the balance slide plate and located on the side of the support base away from the balance spring. A connecting block is connected to the side wall of the balance slide plate away from the support base. The adjusting screw is threaded through the support base and rotatably connected to the connecting block.

[0020] By adopting the above technical solution, the angle gauge is adjusted horizontally by sliding the adjusting rod horizontally on the vertical slide block. Therefore, the length of the adjusting rod on both sides of the vertical slide block is determined by the final position of the angle gauge. To maximize the downward vertical force exerted by the balance spring on the other end of the adjusting rod, the balance spring is preferably in a vertical position to reduce force dispersion. Therefore, an adjusting screw is provided between the balance slide plate and the support base. By rotating the adjusting screw, the balance slide plate can slide in a direction parallel to the sliding direction of the adjusting rod, thereby facilitating the appropriate adjustment of the distance between the balance spring and the vertical slide rod according to the length of the other end of the adjusting rod.

[0021] Optionally, the vertical slide includes a connecting slider mounted on a vertical slide rod and a rotating slider rotatably connected to the connecting slider along an axis parallel to the rotor. The rotating slider has an adjusting groove that is slidably connected to the adjusting support rod. When working, the adjusting groove is in a horizontal state, and when not working, the adjusting groove is in a vertical state. A flipping component is provided between the support base and the rotating slider. When working, the flipping component is used to flip the rotating slider so that the adjusting groove is flipped to a horizontal state.

[0022] By adopting the above technical solution, when the indicating device is not working, the angle ruler and projection angle meter need to be removed for maintenance. Then, to reduce the footprint of the indicating device, the rotating slider rotates relative to the connecting slider, causing the adjusting rod to rotate as vertically as possible, with the balance spring located directly below the adjusting rod. At this point, the indicating device is in a balanced state, and the balance spring retracts to protect the indicating device.

[0023] Optionally, the flipping assembly includes a flipping upright and a flipping ball. A flipping slide is provided on the vertical slide rod. The flipping upright and the flipping slide are vertically slidably connected. The top end of the flipping upright slides vertically upward and is inserted into the rotating slider. The flipping ball is rotatably installed at the bottom of the flipping upright and abuts against the upper end surface of the balance slide plate. A flipping sliding hole is vertically opened on the upper end surface of the balance slide plate near the balance spring for the flipping upright to slide into.

[0024] By adopting the above technical solution, when the indicating device is not working, the adjusting screw is rotated in the forward direction. The adjusting screw drives the connecting block to move in the direction close to the support base. During this process, the flipping ball and the balance slide plate slide against each other. The bottom end of the balance spring tilts in the direction close to the support base until the flipping upright slides into the flipping slide hole. The flipping upright disengages from the rotating slider. The tension of the balance spring on the adjusting support rod drives the adjusting support rod to rotate to a vertical state.

[0025] Optionally, the top of both the main and auxiliary rods of the angle gauge is equipped with a guide seat. The guide seat has an installation groove along the direction parallel to the axis of the rotor for the sliding insertion of the projection angle instrument. The guide seat is also threaded with a clamping screw, which passes through the guide seat and clamps against the projection angle instrument.

[0026] By adopting the above technical solution, the line projection angle meter is installed through the guide seat, enabling the line projection angle meter to project lines horizontally.

[0027] Optionally, the angle ruler includes a digital angle ruler capable of displaying the angle between the main ruler and the auxiliary ruler.

[0028] By adopting the above technical solution, the included angle of the angle gauge can be accurately adjusted using a digital angle gauge, thereby improving the installation position accuracy of the balance block.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. A vertical straight line is projected by a projection angle meter located on the main ruler rod, with the hinge point of the main ruler rod and the auxiliary ruler rod located on the axis of the rotor. Then, the auxiliary ruler rod is rotated, and the angle between the auxiliary ruler rod and the main ruler rod is the position angle of the balance block. At this time, the intersection of the straight line projected by the projection angle meter on the auxiliary ruler rod and the adjustment ring groove of the rotor is the installation position of the balance block, so as to accurately find the installation position of the balance block and improve the installation position accuracy of the balance block;

[0031] 2. The vertical position of the angle ruler is adjusted by the vertical slide rod and the vertical slide block, and the horizontal position of the angle ruler is adjusted by adjusting the support rod and the mounting base, so as to improve the structural flexibility of the indicating device, facilitate the adjustment of the position of the angle ruler, and improve the indicating accuracy of the position of the balance block;

[0032] 3. In order to reduce the sway amplitude when the vernier rod rotates, the sliding direction of the vernier rod is guided by the limiting slide rod and the limiting slider. At the same time, the connection area between the vernier rod and the bracket is increased, thereby increasing the connection strength between the angle gauge and the bracket and reducing the sway amplitude when the vernier rod rotates. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0034] Figure 2 This is a schematic diagram showing the positions of the rotor and the balance block in Embodiment 1 of this application.

[0035] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0036] Figure 4 This is a schematic diagram showing the connection between the limiting slide bar and the angle ruler in Embodiment 2 of this application.

[0037] Figure 5 This is a schematic diagram showing the connection between the balance slide and the support base in Embodiment 2 of this application.

[0038] Figure 6 This is a schematic diagram of the connection between the vertical slide and the flipping upright in Embodiment 2 of this application.

[0039] Figure 7 This is a schematic diagram showing the positions of the flipping component and the balancing slide in Embodiment 2 of this application.

[0040] In the diagram: 1. Bracket; 11. Support base; 111. Balance slide groove; 12. Vertical slide rod; 13. Vertical slide block; 131. Connecting slider; 132. Rotating slider; 133. Adjusting slide groove; 134. Flipping slide groove; 14. Adjusting support rod; 15. Mounting seat; 16. Limiting slide rod; 161. Limiting slide groove; 17. Limiting slider; 18. Guide seat; 181. Mounting slide groove; 19. Tightening screw; 2. Angle gauge ; 21. Main scale rod; 22. Secondary scale rod; 23. Hinge point; 24. Placement angle; 3. Projection angle meter; 4. Limiting screw; 5. Balance spring; 6. Balance slide plate; 61. Tilting slide hole; 7. Adjusting component; 71. Adjusting screw; 72. Connecting block; 8. Tilting assembly; 81. Tilting upright; 82. Tilting ball bearing; 83. Tilting carriage; 9. Rotor; 91. Shaft; 92. Adjustment ring groove; 100. Balance block. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0042] Example 1

[0043] This application discloses a rotor dynamic balance counterweight angle measuring and indicating device. (Refer to...) Figure 1 and Figure 2 The indicating device includes a bracket 1, an angle ruler 2, and a projection angle meter 3.

[0044] The bracket 1 includes a support base 11, a vertical slide rod 12, a vertical slide block 13, an adjusting support rod 14, and a mounting base 15. The vertical slide rod 12 is mounted on the support base 11, and the vertical slide block 13 is vertically slidably mounted on the vertical slide rod 12 and connected to it by bolts. An adjusting groove 133 is provided on the vertical slide block 13, and one end of the adjusting support rod 14 slides horizontally through the adjusting groove 133, so that both ends of the adjusting support rod 14 are located on both sides of the vertical slide block 13. The adjusting support rod 14 and the vertical slide block 13 are connected by screws. One end of the adjusting support rod 14 is connected to the mounting base 15 for mounting the angle gauge 2.

[0045] In addition, the angle ruler 2 includes a main ruler 21 and a secondary ruler 22. One end of the main ruler 21 and one end of the secondary ruler 22 are hinged together to form a hinge point 23. The angle ruler 2 is preferably a digital angle ruler 2, because the digital angle ruler 2 has a display for displaying the angle between the main ruler 21 and the secondary ruler 22, which makes it easy for the staff to accurately know the change of the angle.

[0046] In addition, guide seats 18 are installed on the top of the main ruler rod 21 and the auxiliary ruler rod 22. The guide seat 18 has a mounting groove 181 for sliding insertion of the projection angle instrument 3 along the direction parallel to the axis of the rotor 9. The guide seat 18 is also threaded with a clamping screw 19. The clamping screw 19 passes through the guide seat 18 and clamps the projection angle instrument 3, thereby installing the projection angle instrument 3 on the guide seat 18, so that the projection angle instrument 3 projects the line in the horizontal direction.

[0047] When the angle ruler 2 is placed on the mounting base 15, the main ruler rod 21 of the angle ruler 2 is vertically arranged and the top end of the main ruler rod 21 is connected to the mounting base 15. The axis 91 of the rotor 9 is located on the vertical straight line projected by the projection angle instrument 3 on the main ruler rod 21. The hinge point 23 is located below the mounting base 15, and the auxiliary ruler rod 22 is located on the side of the main ruler rod 21 away from the vertical slide rod 12.

[0048] When the indicating device is working, first adjust the position of the angle ruler 2 so that the hinge point 23 of the angle ruler 2 is located on the axis of the rotor 9. Rotate the auxiliary ruler rod 22 according to the calculated position angle of the balance block 100. The included angle between the auxiliary ruler rod 22 and the main ruler rod 21 is the placement angle 24 for installing the balance block 100. Continue until the placement angle 24 is the calculated position angle of the balance block 100. At this time, the straight line projected by the projection angle instrument 3 on the auxiliary ruler rod 22 and the intersection of the adjustment ring groove 92 of the rotor 9 is the installation position of the balance block 100.

[0049] When there is only one balance block 100, the center of the balance block 100 is the intersection of the straight line projected by the projection angle meter 3 on the vernier rod 22 and the adjustment ring groove 92 of the rotor 9. When there are multiple balance blocks 100, the center of the connection between the multiple balance blocks 100 is the intersection of the straight line projected by the projection angle meter 3 on the vernier rod 22 and the adjustment ring groove 92 of the rotor 9. The installation position of the balance block 100 can be accurately located without manual measurement, thus improving the installation accuracy of the balance block 100.

[0050] The implementation principle of the rotor dynamic balancing counterweight angle measuring and indicating device in this application embodiment is as follows: After knowing the position angle of the balance block 100, the position of the angle ruler 2 is first adjusted so that the axis 91 of the rotor 9 is located on the vertical straight line projected by the projection angle instrument 3 on the main ruler rod 21. Then, the position of the angle instrument is adjusted so that the hinge point 23 of the main ruler rod 21 and the auxiliary ruler rod 22 is located on the axis of the rotor 9. Then, the auxiliary ruler rod 22 is rotated until the included angle between the auxiliary ruler rod 22 and the main ruler rod 21 is the position angle of the balance block 100. At this time, the intersection of the straight line projected by the projection angle instrument 3 on the auxiliary ruler rod 22 and the adjustment ring groove 92 of the rotor 9 is the installation position of the balance block 100, so as to accurately find the installation position of the balance block 100 without manual measurement, thereby improving the installation position accuracy of the balance block 100.

[0051] Example 2

[0052] The difference between Embodiment 2 and Embodiment 1 of this application is that, referring to... Figure 3 and Figure 4 To improve the balance of the entire indicator device, one end of the adjusting rod 14, on which the angle ruler 2 is mounted, is connected to the limiting slide rod 16, and the other end is connected to the balance spring 5.

[0053] The limiting slide rod 16 has a limiting slide groove 161 arranged along the rotation trajectory parallel to the vernier rod 22. The limiting slide rod 16 is slidably connected to the limiting slider 17 through the limiting slide groove 161. The limiting slider 17 and the vernier rod 22 are threaded together. When the vernier rod 22 rotates, the vernier rod 22 is connected to the limiting slide rod 16 through the limiting slider 17, which strengthens the connection area between the vernier rod 22 and the bracket 1, reduces the swaying amplitude of the vernier rod 22 during rotation due to the weight of the projection angle meter 3 itself, and thus reduces the vibration amplitude of the light projected by the projection angle meter 3 on the vernier rod 22.

[0054] The limiting slider 17 is also threadedly connected to the limiting screw 4. The limiting screw 4 passes through the limiting slide groove 161 and abuts against the limiting slide rod 16, thereby limiting the rotation angle and rotation position of the auxiliary ruler rod 22, which facilitates the subsequent installation of the balance block 100.

[0055] In addition, such as Figure 3 and Figure 5 As shown, one end of the balance spring 5 is connected to the adjusting rod 14, and the other end of the balance spring 5 is connected to the balance slide plate 6. When the indicating device is working, the balance spring 5 is vertically positioned and connected to the side of the balance slide plate 6 away from the support base 11. To ensure that the balance spring 5 remains vertical after adjusting the length of the adjusting rod 14 on both sides of the vertical slide block 13, the support base 11 is provided with a balance groove 111 that is slidably connected to the balance slide plate 6. The balance slide plate 6 slides horizontally in a direction perpendicular to the axis of the rotor 9. The support base 11 is provided with an adjusting member 7 for limiting the sliding distance of the balance slide plate 6. When the position of the upper end of the balance spring 5 changes, the sliding distance of the balance slide plate 6 is adjusted by the adjusting member 7, so that the position of the lower end of the balance spring 5 is adjusted accordingly with the upper end. This allows the balance spring 5 to apply a vertically downward pulling force to the other end of the adjusting rod 14, thereby reducing the dispersion of force and thus reducing the degree of center offset of the indicating device.

[0056] In addition, such as Figure 5As shown, the adjusting component 7 includes an adjusting screw 71. The adjusting screw 71 is arranged parallel to the sliding direction of the balance slide plate 6 and is located on the side of the support base 11 away from the balance spring 5. A connecting block 72 is connected to the side wall of the balance slide plate 6 away from the support base 11. The adjusting screw 71 is threaded through the support base 11 and rotatably connected to the connecting block 72. By rotating the adjusting screw 71, the balance slide plate 6 can be driven to slide parallel to the sliding direction of the adjusting rod 14, which facilitates the appropriate adjustment of the distance between the balance spring 5 and the vertical slide rod 12 according to the length of the other end of the adjusting rod 14.

[0057] Reference Figure 6 and Figure 7 When the indicating device is not working, the angle ruler 2 and the projection angle meter 3 need to be removed. Then, in order to reduce the footprint of the indicating device, the vertical slide 13 includes a connecting slider 131 installed on the vertical slide rod 12 and a rotating slider 132 rotatably connected to the connecting slider 131 along the axis parallel to the rotor 9. The adjusting groove 133 is opened in the rotating slider 132. The bracket 1 is provided with a flipping component 8. The flipping component 8 is connected to the rotating slider 132 and can drive the rotating slider 132 to rotate relative to the connecting slider 131, so that the horizontally arranged adjusting support rod 14 is flipped to a vertically arranged state.

[0058] The flipping assembly 8 includes a flipping upright 81 and a flipping ball bearing 82. A flipping slide 83 is provided on the vertical slide rod 12, and the flipping upright 81 is vertically slidably connected to the flipping slide 83. The top end of the flipping upright 81 slides vertically upward into the rotating slider 132, and the lower end of the rotating slider 132 has a flipping groove 134 for the flipping upright 81 to slide into. The flipping ball bearing 82 is rolledly mounted on the bottom of the flipping upright 81 and rolls against the upper end surface of the balance slide plate 6. A flipping sliding hole 61 is vertically provided on the upper end surface of the balance slide plate 6 near the balance spring 5 for the flipping upright 81 to slide into. The wall of the flipping sliding hole 61 facing the vertical slide rod 12 is a flipping slope that slopes upward from bottom to top along the direction close to the vertical slide rod 12, so that the flipping upright 81 can slowly slide into the flipping sliding hole 61.

[0059] When the balance slide plate 6 drives the balance spring 5 to move in the direction close to the vertical slide bar 12, the flipping ball 82 contacts the flipping inclined surface and drives the flipping upright 81 to gradually slide into the flipping sliding hole 61 until the flipping upright 81 is completely disengaged from the flipping sliding groove 134. At this time, the balance spring 5 extends, thereby increasing the pulling force on the adjusting support rod 14. The pulling force of the balance spring 5 on the adjusting support rod 14 drives the adjusting support rod 14 to rotate to a vertical position. This reduces the footprint of the indicating device and protects the indicating device.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotor dynamic balancing weight angle measurement indicating device, characterized by: The device includes a bracket (1) positioned facing the end face of the rotor (9) and an angle ruler (2) mounted on the bracket (1). The angle ruler (2) includes a main ruler rod (21) and a secondary ruler rod (22) hinged together. The main ruler rod (21) is mounted vertically on the bracket (1). The hinge point (23) between the main ruler rod (21) and the secondary ruler rod (22) is located on the axis of the rotor (9). The secondary ruler rod (22) rotates along a vertical plane perpendicular to the axis of the rotor (9), and the angle between the secondary ruler rod (22) and the main ruler rod (21) is the placement angle (24) for mounting the balance block (100). A projection angle meter (3) is installed on the top of both the main ruler (21) and the top of the auxiliary ruler (22). The projection angle meter (3) installed on the main ruler (21) projects a horizontal line onto the rotor (9), so that the axis (91) of the rotor (9) is located on the vertical straight line projected by the projection angle meter (3). The projection angle meter (3) installed on the auxiliary ruler (22) projects a horizontal line onto the rotor (9), and the intersection of the straight line projected by the projection angle meter (3) and the adjustment ring groove (92) of the rotor (9) is the installation position of the balance block (100).

2. A rotor dynamic balancing weight angle measurement indicating device according to claim 1, characterized in that: The bracket (1) includes a support base (11), a vertical slide rod (12), a vertical slide block (13), an adjusting support rod (14), and a mounting base (15). The vertical slide rod (12) is mounted on the support base (11), the vertical slide block (13) is vertically slidably mounted on the vertical slide rod (12), the adjusting support rod (14) is horizontally slidably connected to the vertical slide block (13), and one end of the adjusting support rod (14) is connected to the mounting base (15) for mounting the angle gauge (2).

3. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 2, characterized in that: One end of the adjusting support rod (14) connected to the mounting base (15) is provided with a limiting slide rod (16), and a limiting slider (17) is provided on the limiting slide rod (16). A limiting groove (161) for sliding connection of the limiting slider (17) is provided on the limiting slide rod (16), and the limiting groove (161) is arranged along the rotation trajectory parallel to the auxiliary ruler rod (22).

4. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 3, characterized in that: The limiting slider (17) is threadedly connected to the limiting screw (4), which passes through the limiting groove (161) and abuts against the limiting slide bar (16) to limit the angle between the auxiliary ruler (22) and the main ruler (21).

5. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 2, characterized in that: The other end of the adjusting support rod (14) is located on the side of the vertical slide (13) away from the mounting base (15). The other end of the adjusting support rod (14) is provided with a balance spring (5). One end of the balance spring (5) is connected to the adjusting support rod (14), and the other end of the balance spring (5) is connected to a balance slide plate (6). The support base (11) is provided with a balance groove (111) that is slidably connected to the balance slide plate (6). The balance groove (111) is arranged horizontally along the direction perpendicular to the axis of the rotor (9). The balance spring (5) is arranged vertically and connected to the side of the balance slide plate (6) away from the support base (11). The support base (11) is provided with an adjusting member (7) for limiting the sliding distance of the balance slide plate (6).

6. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 5, characterized in that: The adjusting component (7) includes an adjusting screw (71), which is arranged in a sliding direction parallel to the balance slide plate (6) and located on the side of the support base (11) away from the balance spring (5). A connecting block (72) is connected to the side wall of the balance slide plate (6) away from the support base (11). The adjusting screw (71) is threaded through the support base (11) and rotatably connected to the connecting block (72).

7. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 6, characterized in that: The vertical slide block (13) includes a connecting slider (131) mounted on a vertical slide rod (12) and a rotating slider (132) rotatably connected to the connecting slider (131) along an axis parallel to the rotor (9). The rotating slider (132) has an adjusting groove (133) slidably connected to the adjusting support rod (14). When working, the adjusting groove (133) is in a horizontal state, and when not working, the adjusting groove (133) is in a vertical state. A flipping component (8) is provided between the support base (11) and the rotating slider (132). When working, the flipping component (8) is used to flip the rotating slider (132) so that the adjusting groove (133) flips to a horizontal state.

8. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 7, characterized in that: The flipping assembly (8) includes a flipping upright (81) and a flipping ball (82). A flipping slide (83) is provided on the vertical slide rod (12). The flipping upright (81) and the flipping slide (83) are vertically slidably connected. The top of the flipping upright (81) is vertically slidably inserted into the rotating slider (132). The flipping ball (82) is slidably installed on the bottom of the flipping upright (81) and abuts against the upper end face of the balance slide plate (6). The upper end face of the balance slide plate (6) is vertically provided with a flipping sliding hole (61) for the flipping upright (81) to slide into near the balance spring (5).

9. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 1, characterized in that: The top of the main rod (21) and the auxiliary rod (22) of the angle ruler (2) are both equipped with guide seats (18). The guide seats (18) have mounting grooves (181) for sliding insertion of the projection angle instrument (3) along the axis parallel to the rotor (9). The guide seats (18) are also threaded with a clamping screw (19), which passes through the guide seats (18) and clamps the projection angle instrument (3).

10. The rotor dynamic balancing counterweight angle measuring and indicating device according to claim 1, characterized in that: The angle ruler (2) includes a digital angle ruler (2) capable of displaying the angle between the main ruler (21) and the auxiliary ruler (22).

Images