Rotor dynamic balance adjusting device

Abstract

The utility model discloses a rotor dynamic balance adjusting device, which comprises a first bottom frame and two second bottom frames, the first bottom frame is used for supporting a rotor in a rolling manner, the two second bottom frames are respectively arranged on the front side and the rear side of the first bottom frame, and sliding guide rails are arranged on the second bottom frames; according to the device, the sliding guide rail and the sliding seat are arranged, the drilling machine is arranged on the sliding seat, the sliding guide rail is used for guiding the sliding seat and the drilling machine to move, the drilling machine is driven to be close to the rotor and drill the end face of the rotor, and then the rollers are arranged to support the rotor in a rolling mode and drive the rotor to rotate; a drilling machine can drill holes in different positions of the rotating terminal, dynamic balance of the rotor can be rapidly adjusted, the overall structure is simple, practical and reliable, and the adjusting process is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a rotor dynamic balance regulating device. Background Art

[0002] The rotor refers to a rotating body supported by bearings. Objects such as optical disks that do not have their own rotating shafts can be regarded as a rotor when they are rigidly connected or have additional shafts. The rotor is one of the main components in the motor. In order to ensure the normal operation of the motor and its long service life, it is necessary to perform dynamic balancing on the rotor after its initial production to ensure that there will not be too much deviation when the rotor rotates. Most of the existing rotor dynamic balancing is achieved by adding weights, but this will increase the overall weight of the rotor, thereby increasing wear and reducing its service life. The publication number is CN109406053A, which discloses a method for dynamic balancing of rotors without deweighting. It only needs to add weights twice to balance, eliminating the deweighting process, greatly improving the balancing accuracy, reducing the balancing cost, improving the balancing efficiency, and avoiding accidents. The steps of the utility model are as follows: a. Install a vibration sensor horizontally on the rotor bearing seat to pick up the vibration signal, paste a reflective paper on the rotor shaft, use the speed sensor to face the reflective paper to measure the speed signal, and use a dynamic balancing instrument to measure the amplitude and phase of the unbalanced vibration of the rotor; b. After adding a test weight, measure the amplitude and phase of the unbalanced vibration again; c. Solve the size and position of the unbalanced mass according to the formula, add a correction mass of the same size on the opposite side, and the vibration can be greatly reduced to achieve balance. This balancing method achieves dynamic balancing adjustment by increasing the weight of the rotor and reduces the overall service life. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a practical and reliable rotor dynamic balancing adjustment device.

[0004] To achieve the above-mentioned purpose, the solution provided by the utility model is: a rotor dynamic balancing adjustment device, including a first base frame and two second base frames, the first base frame is used to roll and support the rotor, the two second base frames are respectively arranged on the front and rear sides of the first base frame, the second base frame is provided with a sliding guide rail, the sliding guide rail is slidably connected to a sliding seat, the sliding guide rail is used to guide the sliding seat to approach or move away from the first base frame, the sliding seat is provided with a drill, and the drill is used to drill holes on one end face of the rotor.

[0005] The beneficial effects of the utility model are as follows: it is practical and reliable. The device is provided with a sliding guide rail and a sliding seat, and a drilling rig is provided on the sliding seat. The sliding guide rail is used to guide the movement of the sliding seat and the drilling rig, so as to drive the drilling rig to approach the rotor and perform drilling processing on the end face of the rotor. Then, rollers are provided to realize rolling support of the rotor, which can drive the rotor to rotate, so that the drilling rig can drill holes at different positions of the rotating terminal, thereby realizing rapid adjustment of the dynamic balance of the rotor. The overall structure is simple, practical and reliable, and the adjustment process is simple.

[0006] Furthermore, it also includes a base, and the first base frame and the two second base frames are respectively arranged on the base.

[0007] Furthermore, the first base frame includes two brackets, the two brackets are respectively arranged on the base, the two brackets are arranged with a front-back interval, and the two brackets are used to jointly support the rotor in a rolling manner, wherein one of the second base frames is arranged on the outside of one bracket.

[0008] Furthermore, a mounting groove is provided on the base, the bracket is arranged on the mounting groove, a mounting block is provided at the bottom of the second chassis, and the mounting block is buckled and connected in the mounting groove. After the utility model adopts the above structure, the position of the second chassis can be adjusted.

[0009] Furthermore, two rollers are rotatably connected to the top of the bracket, and the two rollers are used to roll together to support the input shaft or output shaft of the rotor.

[0010] Furthermore, the roller is coaxially connected to a driven gear, the top of the bracket is rotatably connected to a transmission shaft, the transmission shaft is coaxially connected to a driving gear, and the driving gear meshes with two driven gears respectively. After the utility model adopts the above structure, the roller is driven to rotate.

[0011] Furthermore, a working platform is arranged on the second chassis, the sliding guide rail is arranged on the working platform, a servo motor is arranged on the working platform, the servo motor is connected to a servo screw, and the servo screw is threadedly connected to the sliding seat. After the utility model adopts the above structure, the sliding seat can be driven to move.

[0012] Furthermore, a clamping sleeve is provided on the sliding seat, and the clamping sleeve is used to clamp and fix the drilling rig. After the utility model adopts the above structure, the drilling rig can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 .

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3The overall structure of the utility model is three-dimensional Figure 2 .

[0016] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0017] Figure 5 This is a structural diagram of a transmission shaft connected to a roller in the utility model.

[0018] Among them, 1 is the first base frame, 11 is the bracket, 12 is the roller, 121 is the driven gear, 13 is the transmission shaft, 131 is the driving gear, 2 is the second base frame, 21 is the working platform, 22 is the sliding guide rail, 221 is the sliding seat, 23 is the servo motor, 231 is the servo screw, 24 is the drilling rig, 25 is the clamping hoop, 26 is the mounting block, 27 is the mounting seat, 271 is the push rod, 3 is the base, and 31 is the mounting groove. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] See attached Figure 1 To Attachment Figure 5 As shown, a rotor dynamic balancing adjustment device includes a first base frame 1 and two second base frames 2. The first base frame 1 is used to roll and support the rotor. The two second base frames 2 are respectively arranged on the front and rear sides of the first base frame 1. A sliding guide rail 22 is arranged on the second base frame 2. A sliding seat 221 is slidably connected to the sliding guide rail 22. The sliding guide rail 22 is used to guide the sliding seat 221 to approach or move away from the first base frame 1. A drilling machine 24 is arranged on the sliding seat 221, and the drilling machine 24 is used to drill holes on one end face of the rotor.

[0022] This embodiment further includes a base 3 , and the first base frame 1 and the two second base frames 2 are respectively disposed on the base 3 .

[0023] In this embodiment, the first base frame 1 includes two brackets 11, which are respectively arranged on the base 3, and the two brackets 11 are arranged with a front-to-back interval. The two brackets 11 are used to jointly support the rotor in a rolling manner, wherein a second base frame 2 is arranged outside a bracket 11.

[0024] In this embodiment, a mounting groove 31 is formed on the base 3 , the bracket 11 is disposed on the mounting groove 31 , and a mounting block 26 is disposed at the bottom of the second base frame 2 , and the mounting block 26 is snap-connected in the mounting groove 31 .

[0025] In this embodiment, two rollers 12 are rotatably connected to the top of the bracket 11, and the two rollers 12 are used to roll together to support the input shaft or the output shaft of the rotor.

[0026] In this embodiment, the roller 12 is coaxially connected to a driven gear 121 , the top of the bracket 11 is rotatably connected to a transmission shaft 13 , the transmission shaft 13 is coaxially connected to a driving gear 131 , and the driving gear 131 meshes with the two driven gears 121 respectively.

[0027] In this embodiment, a working platform 21 is disposed on the second base frame 2 , a sliding guide rail 22 is disposed on the working platform 21 , a servo motor 23 is disposed on the working platform 21 , the servo motor 23 is connected to a servo screw 231 , and the servo screw 231 is threadedly connected to the sliding seat 221 .

[0028] In this embodiment, a clamping sleeve 25 is provided on the sliding seat 221 , and the clamping sleeve 25 is used to clamp and fix the drilling rig 24 .

[0029] In this embodiment, a mounting seat 27 is provided on one of the second base frames 2. The mounting seat 27 is located on one of the left and right sides of the sliding seat 221. A push rod 271 is rotatably connected to the mounting seat 27. The push rod 271 is used to resist the input shaft or output shaft of the top-pressing rotor to limit the forward and backward movement of the rotor, so as to facilitate the subsequent dynamic balancing adjustment of the rotor.

[0030] The rotor dynamic balancing adjustment process of this embodiment is as follows:

[0031] S1. First, place the input shaft and output shaft at the front and rear ends of the rotor on the two rollers 12 of the two brackets 11 respectively, so that the push rod 271 contacts the input shaft or output shaft of the rotor, and then connect the transmission shaft 13 to the hand wheel or the motor according to the actual situation, so as to drive the transmission shaft 13 to rotate, thereby driving the two rollers 12 to rotate, and driving the rotor to rotate, and then measure and record the original vibration amplitude as O' to determine the unbalance point of the rotor.

[0032] S2. Calculate the allowable unbalance amount m / 2 allocated to the front and rear end surfaces using the formula m=9549M*G / O'*n, where M is the rotor mass in kg, G is the accuracy grade, O' is the correction radius in mm, n is the rotor's operating speed in rpm, and m is the qualified unbalance amount.

[0033] S3. Stop the rotor, and then draw a circle with O' as the radius on the front and rear end surfaces of the rotor. Then, based on the allowable unbalance m / 2, determine the number of holes to be drilled on the rotor end surface, the depth of each hole, and the position of the holes to be drilled on the rotor end surface.

[0034] S4. Align the drill 24 with the position on the rotor end face where a hole needs to be drilled, start the drill 24, and then start the two servo motors 23 respectively. The servo motor 23 drives the servo screw 231 to rotate, thereby driving the sliding seat 221 and the drill 24 to move, thereby driving the drill 24 to approach the rotor until the drill 24 contacts the rotor end face, and drills a hole on the rotor end face to a set depth, completing the drilling process of a hole.

[0035] S5. Control the two servo motors 23 to drive the two drills 24 to move and reset, and then rotate the transmission shaft 13, which drives the rotor to rotate until the next position of the rotor that needs to be drilled is aligned with the drill 24, and then repeat the operation of step S4.

[0036] S6. Repeat step S5 until the holes required to be drilled on both end surfaces of the rotor are drilled.

[0037] Among them, a locking screw is provided on the mounting block 26, and the locking screw is used to lock and fix the mounting block 26 on the mounting groove 31. In this way, before processing, when a deeper hole needs to be drilled, the position of the two second base frames 2 needs to be adjusted, specifically: loosen the locking screw, and then push the mounting block 26 to slide on the mounting groove 31 to drive the second base frame 2 to approach the bracket 11, until it is close to the set distance, and then retighten the locking screw.

[0038] The embodiments described above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any technician familiar with the field can use the above disclosed technical content to make more possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent and equivalent changes made according to the idea of ​​the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotor dynamic balancing adjustment device, comprising a first base frame (1) and two second base frames (2), characterized in that: The first base frame (1) is used for rolling support of the rotor, the two second base frames (2) are respectively arranged on the front and rear sides of the first base frame (1), the second base frame (2) is provided with a sliding guide rail (22), the sliding guide rail (22) is slidably connected to a sliding seat (221), the sliding guide rail (22) is used to guide the sliding seat (221) to approach or move away from the first base frame (1), the sliding seat (221) is provided with a drilling machine (24), and the drilling machine (24) is used to perform drilling processing on one end surface of the rotor.

2. A rotor dynamic balancing adjustment device according to claim 1, characterized in that: It also comprises a base (3), wherein the first base frame (1) and the two second base frames (2) are respectively arranged on the base (3).

3. A rotor dynamic balancing adjustment device according to claim 2, characterized in that: The first base frame (1) comprises two brackets (11), the two brackets (11) are respectively arranged on the base (3), the two brackets (11) are arranged with a front-to-back spacing, and the two brackets (11) are used to jointly support the rotor in a rolling manner, wherein one of the second base frames (2) is arranged on the outside of one of the brackets (11).

4. A rotor dynamic balancing adjustment device according to claim 3, characterized in that: The base (3) is provided with a mounting groove (31), the bracket (11) is arranged on the mounting groove (31), and a mounting block (26) is arranged at the bottom of the second base frame (2), and the mounting block (26) is snap-connected in the mounting groove (31).

5. A rotor dynamic balancing adjustment device according to claim 4, characterized in that: The top of the bracket (11) is rotatably connected to two rollers (12), and the two rollers (12) are used to roll together to support the input shaft or output shaft of the rotor.

6. A rotor dynamic balancing adjustment device according to claim 5, characterized in that: The roller (12) is coaxially connected to a driven gear (121); the top of the bracket (11) is rotatably connected to a transmission shaft (13); the transmission shaft (13) is coaxially connected to a driving gear (131); and the driving gear (131) meshes with the two driven gears (121) respectively.

7. A rotor dynamic balancing adjustment device according to claim 1, characterized in that: A working platform (21) is provided on the second base frame (2), the sliding guide rail (22) is provided on the working platform (21), a servo motor (23) is provided on the working platform (21), the servo motor (23) is connected to a servo screw (231), and the servo screw (231) is threadedly connected to the sliding seat (221).

8. A rotor dynamic balancing adjustment device according to claim 1, characterized in that: A clamping sleeve (25) is provided on the sliding seat (221), and the clamping sleeve (25) is used to clamp and fix the drilling rig (24).

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