Large-scale unit rotor dynamic balance detection device

Abstract

The utility model discloses a large-scale unit rotor dynamic balance detection device which comprises a base plate, a power mechanism, a fixed measuring mechanism, a cutting mechanism and a movable measuring mechanism, the power mechanism and the fixed measuring mechanism are installed on the base plate, the cutting mechanism and the movable measuring mechanism are connected to the base plate in a sliding mode, and the fixed measuring mechanism is installed on the base plate. The cutting mechanism is arranged between the fixed measuring mechanism and the movable measuring mechanism; the cutting mechanism comprises a displacement table, a rotary table, a handle screw, a support, a lifting table, a rotary table, a cutting displacement plate, a rotary frame, a feeding lead screw, a lifting lead screw, a cutting motor and a cutter handle, the rotary table is arranged on the displacement table, and one end of the handle screw penetrates through the rotary table to be connected with the displacement table; the large-scale unit rotor dynamic balance detection device is simple in structure, convenient and practical, cutting weight reduction is performed on a motor rotating shaft through the cutting mechanism, the cutting angle is adjusted through the rotating table, then the cutting height is adjusted through the lifting table, and the purposes of accurate cutting, trepanning and weight reduction are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dynamic balance detection, and in particular relates to a dynamic balance detection device for a large-scale unit rotor. Background Art

[0002] The rotors of large units need to be dynamically balanced to ensure the stability of the motor during operation and avoid vibration of the motor after installation. When testing the motor, it is necessary to test the coaxiality of the rotor or the two ends of the rotor after the coil is installed. After the test is completed, the weighting method or the weight reduction method is used for correction. The corresponding specific gravity balance blocks are added to both ends of the rotor or the specific gravity is reduced by cutting to compensate for the problem of balanced centrifugal deviation of the shaft. The existing weight reduction method predetermines the correction point, removes the rotor for hole correction, and then tests again to ensure the accuracy of the correction. This method is more troublesome. In order to reduce the steps of getting the rotor on and off the machine, or manually sampling the electric rotary head to directly drill holes, but this method has high requirements for operators, and the depth, angle or size of the hole cannot be controlled, resulting in large deviations. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a large-scale unit rotor dynamic balance detection device, which has a simple structure, is convenient and practical. The motor shaft is cut and reduced in weight by a cutting mechanism, the cutting angle is adjusted by a rotating table, and then the cutting height is adjusted by a lifting table, so as to achieve the purpose of accurate cutting, opening and weight reduction.

[0004] A large-scale unit rotor dynamic balancing detection device comprises a base plate, a power mechanism, a fixed measuring mechanism, a cutting mechanism and a dynamic measuring mechanism, wherein the power mechanism and the fixed measuring mechanism are mounted on the base plate, the cutting mechanism and the dynamic measuring mechanism are slidably connected to the base plate, and the cutting mechanism is arranged between the fixed measuring mechanism and the dynamic measuring mechanism; the cutting mechanism comprises a displacement platform, a turntable, a handle screw, a bracket, a lifting platform, a rotating platform, a cutting displacement plate, a rotating frame, a feed screw, a lifting screw, a cutting motor and a tool handle, the turntable is arranged on the displacement platform, one end of the handle screw passes through the turntable and is connected to the displacement platform, the bracket is fixed on the turntable, the lifting platform is slidably connected to the bracket and is connected to the rotating platform, the rotating frame is connected to the rotating platform, the cutting displacement plate is slidably connected to the turntable, the cutting motor is mounted on the cutting displacement plate and the power rod is connected to the tool handle, the lifting screw is movably connected to the bracket and is transmission-connected to the lifting platform, the feed screw is connected to the turntable and one end is connected to the cutting displacement plate.

[0005] Preferably, the fixed measuring mechanism and the dynamic measuring mechanism both include a base, an adjusting motor, an adjusting screw, a displacement fixing frame, an adjusting frame, rollers, a rotor fixing frame and bolts. The adjusting motor is installed on the base and the power rod is connected to the adjusting screw. The displacement fixing frame is slidably connected to the base. The adjusting screw is transmission-connected to the displacement fixing frame. The adjusting frame is installed on the displacement fixing frame. The two rollers are installed on the adjusting frame. The rotor fixing frame is connected to the adjusting frame by bolts.

[0006] Preferably, one end of the feed screw and the lifting screw are both connected to a handle.

[0007] Preferably, the cutting displacement plate and the lifting platform are both provided with scale lines.

[0008] Preferably, the rotating table is connected with fixing bolts.

[0009] Beneficial effects:

[0010] (1) The utility model is a large-scale unit rotor dynamic balance detection device, which has a simple structure, is convenient and practical. The motor shaft is cut and reduced in weight by a cutting mechanism, the cutting angle is adjusted by a rotating table, and then the cutting height is adjusted by a lifting table, so as to achieve the purpose of accurate cutting, opening and weight reduction.

[0011] (2) The utility model provides a large-scale unit rotor dynamic balance detection device, which adjusts the displacement of the lifting platform by adjusting the motor so that the position of the roller supporting the rotor can be quickly aligned, thereby reducing the problem of the rotor hoisting and moving back and forth adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a balance detection device;

[0013] Figure 2 It is a structural diagram of the measuring mechanism;

[0014] Figure 3 is a schematic diagram of the structure of the cutting mechanism;

[0015] 1-base plate, 2-power mechanism, 3-fixed measuring mechanism, 4-cutting mechanism, 41-displacement table, 42-turntable, 43-handle screw, 44-bracket, 45-lifting table, 46-rotating table, 47-cutting displacement plate, 48-turntable, 49-feed screw, 410-handle, 411-lifting screw, 412-cutting motor, 413-tool handle, 5-dynamic measuring mechanism, 51-base, 52-adjusting motor, 53-adjusting screw, 54-displacement fixing frame, 55-adjusting frame, 56-roller, 57-rotor fixing frame. DETAILED DESCRIPTION

[0016] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0017] Example 1

[0018] like Figures 1 to 3 As shown; a large unit rotor dynamic balance detection device, including a base plate 1, a power mechanism 2, a fixed measuring mechanism 3, a cutting mechanism 4 and a dynamic measuring mechanism 5, the power mechanism 2 and the fixed measuring mechanism 3 are installed on the base plate 1, the cutting mechanism 4 and the dynamic measuring mechanism 5 are slidably connected to the base plate 1, and the cutting mechanism 4 is arranged between the fixed measuring mechanism 3 and the dynamic measuring mechanism 5; the cutting mechanism 4 includes a displacement table 41, a turntable 42, a handle screw 43, a bracket 44, a lifting table 45, a rotating table 46, a cutting position The shift plate 47, the rotating frame 48, the feed screw 49, the lifting screw 411, the cutting motor 412 and the tool handle 413, the rotating table 42 is arranged on the displacement table 41, one end of the handle screw 43 passes through the rotating table 42 and is connected to the displacement table 41, the bracket 44 is fixed on the rotating table 42, the lifting table 45 is slidably connected to the bracket 44 and connected to the rotating table 46, the rotating frame 48 is connected to the rotating table 46, the cutting displacement plate 47 is slidably connected to the rotating frame 48, and the cutting motor 412 is installed at the cutting position The movable measuring mechanism 3 and the movable measuring mechanism 5 both include a base 51, an adjusting motor 52, an adjusting screw 53, a displacement fixing frame 54, an adjusting frame 55, a roller 56, a rotor fixing frame 57 and bolts. The adjusting motor 52 is installed on the base 51 and the power rod is connected to the adjusting screw 53. 3, the displacement fixing frame 54 is slidably connected to the base 51, the adjusting screw rod 53 is transmission-connected to the displacement fixing frame 54, the adjusting frame 55 is installed on the displacement fixing frame 54, the two rollers 56 are installed on the adjusting frame 55, and the rotor fixing frame 57 is connected to the adjusting frame 55 by bolts; one end of the feed screw rod 49 and the lifting screw rod 411 are both connected to the handle 410; the cutting displacement plate 47 and the lifting platform 45 are both provided with scale lines; the rotating platform 46 is connected with fixing bolts.

[0019] Among them, the working end of the microcomputer test system is respectively connected to the fixed measuring mechanism 3 and the dynamic measuring mechanism 5, and the motor shaft is hoisted to the fixed measuring mechanism 3 and the dynamic measuring mechanism 5 by the overhead crane in advance, and the two ends of the motor shaft are supported by the two rollers 56 of the fixed measuring mechanism 3 and the dynamic measuring mechanism 5, and then the power mechanism 2 is connected to one end of the motor shaft through the coupling to drive the motor shaft to rotate; specifically, before the fixed measuring mechanism 3 and the dynamic measuring mechanism 5 contact the end of the motor shaft, the adjusting motor 52 drives the adjusting screw 53 to rotate, so that the displacement fixing frame 54 moves, so that the motor shaft accurately falls on the roller 56; when the motor rotor is reduced in weight, the rotor is fixed The frame 57 fixes one end of the motor rotor to prevent the motor rotor from rotating, and then adjusts the turntable 42 to rotate and adjust the drill bit to align with the motor rotor, and then rotates the lifting screw 411 to lift the displacement fixing frame 54 so that the drill bit and the processing position are on the same horizontal line, and then rotates the rotating table 46 to align the rotary head with the processing position, and then turns on the cutting motor 412 to drive the drill bit to rotate, and then rotates the feed screw 49 to make the cutting displacement plate 47 drive the cutting motor 412 to move, so that the drill bit cuts the motor rotor to complete the weight reduction process; fixes the rotating table 46 with a fixing bolt to prevent the drill bit from changing its angle when working; and controls the drill bit height and feed depth through the scale line.

[0020] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modification and substitution of the present invention is also within the scope of the present invention. Therefore, the equivalent transformation and modification made without departing from the spirit and scope of the present invention are all within the scope of the present invention.

Claims

1. A large unit rotor dynamic balance detection device, characterized in that: The invention comprises a base plate (1), a power mechanism (2), a fixed measuring mechanism (3), a cutting mechanism (4) and a dynamic measuring mechanism (5), wherein the power mechanism (2) and the fixed measuring mechanism (3) are mounted on the base plate (1), the cutting mechanism (4) and the dynamic measuring mechanism (5) are slidably connected to the base plate (1), and the cutting mechanism (4) is arranged between the fixed measuring mechanism (3) and the dynamic measuring mechanism (5); the cutting mechanism (4) comprises a displacement table (41), a turntable (42), a handle screw (43), a bracket (44), a lifting table (45), a rotating table (46), a cutting displacement plate (47), a rotating frame (48), a feed screw (49), a lifting screw (411), a cutting motor (412) and a tool handle (413), wherein the turntable (4 2) is arranged on the displacement platform (41), one end of the handle screw (43) passes through the turntable (42) and is connected to the displacement platform (41), the bracket (44) is fixed on the turntable (42), the lifting platform (45) is slidably connected to the bracket (44) and connected to the rotating platform (46), the rotating frame (48) is connected to the rotating platform (46), the cutting displacement plate (47) is slidably connected to the rotating frame (48), the cutting motor (412) is installed on the cutting displacement plate (47) and the power rod is connected to the tool handle (413), the lifting screw rod (411) is movably connected to the bracket (44) and is transmission-connected to the lifting platform (45), and the feed screw rod (49) is connected to the rotating frame (48) and one end is connected to the cutting displacement plate (47).

2. A large-scale unit rotor dynamic balance detection device as claimed in claim 1, characterized in that: The fixed measuring mechanism (3) and the dynamic measuring mechanism (5) both comprise a base (51), an adjusting motor (52), an adjusting screw (53), a displacement fixing frame (54), an adjusting frame (55), a roller (56), a rotor fixing frame (57) and bolts. The adjusting motor (52) is mounted on the base (51) and the power rod is connected to the adjusting screw (53). The displacement fixing frame (54) is slidably connected to the base (51). The adjusting screw (53) is transmission-connected to the displacement fixing frame (54). The adjusting frame (55) is mounted on the displacement fixing frame (54). The two rollers (56) are mounted on the adjusting frame (55). The rotor fixing frame (57) is connected to the adjusting frame (55) by bolts.

3. A large unit rotor dynamic balance detection device as claimed in claim 2, characterized in that: One end of each of the feed screw rod (49) and the lifting screw rod (411) is connected to a handle (410).

4. A large unit rotor dynamic balance detection device as claimed in claim 3, characterized in that: The cutting displacement plate (47) and the lifting platform (45) are both provided with scale lines.

5. A large-scale unit rotor dynamic balance detection device as claimed in claim 4, characterized in that: The rotating platform (46) is connected with fixing bolts.

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