Cooling tower fan speed reducer and motor concentricity adjusting bracket

Abstract

The utility model relates to a concentricity adjusting bracket for a speed reducer and a motor of a cooling tower fan, and belongs to the technical field of long shaft alignment auxiliary tools. According to the technical scheme, the device comprises two sets of brackets which are arranged at the two ends of an intermediate shaft of a speed reducer and a motor and are of the same structure, each set of brackets comprises an upper bracket (2), a lower bracket (3) and a jack (4), the upper brackets (2) are matched with the intermediate shaft, the upper brackets (2) are arranged on the jacks (4), and the jacks (4) are fixed to the lower brackets (3); the upper bracket (2) is in an arc shape matched with an intermediate shaft; the lower bracket (3) is of an integrated structure composed of a middle stand column and flat plates at the upper end and the lower end. And the cross section of the middle upright post of the lower bracket (3) is smaller than the flat plates at the upper and lower ends. The utility model has the beneficial effects that the concentricity accuracy and operability of the speed reducer and the motor intermediate shaft can be improved, the operation is convenient, the working efficiency is high, and the labor intensity can be reduced.

Description

Technical Field

[0001] The utility model relates to a cooling tower fan reducer and a motor concentricity adjustment bracket, belonging to the technical field of long axis alignment auxiliary tools. Background Art

[0002] The cooling tower fan is affected by the large blade diameter and the harsh environment, which can easily cause the reducer and the motor center line to not coincide, that is, the concentricity deviation is too large, causing the fan to vibrate too much, and then cause equipment accidents. To prevent this from happening, it is necessary to regularly check and adjust the concentricity.

[0003] During the concentricity review and adjustment process, the intermediate shaft is too long, and the reducer and motor cannot be directly adjusted for concentricity due to the long distance between them. The only way is to use the method of adjusting the concentricity of the reducer and the intermediate shaft, and the motor and the intermediate shaft inside and outside at the same time. In actual operation, this method has no problem with left and right axial adjustment, but the upper and lower axial and radial directions cannot be effectively measured and adjusted due to the droop of the intermediate shaft's own weight. Utility Model Content

[0004] The utility model aims to provide a cooling tower fan reducer and motor concentricity adjustment bracket, which can improve the accuracy and operability of the concentricity of the reducer and the motor intermediate shaft, is easy to operate, has high work efficiency, can reduce labor intensity, and solve the problems existing in the background technology.

[0005] The technical solution of the utility model is:

[0006] A cooling tower fan reducer and motor concentricity adjustment bracket comprises two groups of brackets with the same structure arranged at both ends of the reducer and motor intermediate shafts, each group of brackets comprises an upper bracket, a lower bracket and a jack, the upper bracket cooperates with the intermediate shaft, the upper bracket is arranged on the jack, and the jack is fixed on the lower bracket.

[0007] The upper bracket is in an arc shape matched with the intermediate shaft.

[0008] The lower bracket is an integrated structure consisting of a middle column and flat plates at upper and lower ends.

[0009] The cross-sectional dimension of the column in the middle of the lower bracket is smaller than the dimension of the flat plates at the upper and lower ends.

[0010] The jack is located between the upper bracket and the lower bracket.

[0011] When the utility model is used, a bracket is placed at each end of the cooling tower fan reducer and the motor intermediate shaft. The reducer is first used as a reference, and the left and right axial and radial concentricity of the intermediate shaft relative to the reducer shaft is adjusted by moving the two brackets left and right as a whole. The upper and lower axial and radial concentricity of the intermediate shaft relative to the reducer shaft is adjusted by adjusting the upper and lower displacement of the bracket jack. After the concentricity of the intermediate shaft is adjusted, the concentricity of the motor relative to the intermediate shaft is adjusted by moving the motor left and right and adding or removing gaskets on the foot with the intermediate shaft as a reference.

[0012] The beneficial effects of the utility model are: the accuracy and operability of the concentricity of the reducer and the intermediate shaft of the motor can be improved, the operation is convenient, the work efficiency is high, and the labor intensity is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the use state of the utility model;

[0015] In the figure: intermediate shaft 1, upper bracket 2, lower bracket 3, jack 4, reducer 5, motor 6, bracket 7. DETAILED DESCRIPTION

[0016] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0017] Refer to the attached Figure 1 , 2 A cooling tower fan reducer and motor concentricity adjustment bracket includes two groups of brackets with the same structure arranged at both ends of the reducer and the motor intermediate shaft, each group of brackets includes an upper bracket 2, a lower bracket 3 and a jack 4, the upper bracket 2 cooperates with the intermediate shaft, the upper bracket 2 is arranged on the jack 4, and the jack 4 is fixed on the lower bracket 3.

[0018] In this embodiment, refer to the attached Figure 1 , 2 The cooling tower fan reducer and motor concentricity adjustment bracket includes two groups of brackets with the same structure, each group of brackets includes an upper bracket 2, a lower bracket 3 and a jack 4, wherein the lower bracket 3 is composed of two upper and lower flat plates and a middle column, and the height can be designed according to the actual application part; the upper bracket 2 adopts a semi-arc design, which can be effectively close to the middle shaft of the fan; the jack 4 is located between the upper bracket 2 and the lower bracket 3, and the upper and lower height adjustment and alignment can be adjusted by the middle jack 4.

[0019] For specific operation methods, please refer to Figure 2When in use, place a bracket at each end of the cooling tower fan reducer and the motor intermediate shaft. First, take the reducer 5 as the reference, and adjust the left and right axial and radial concentricity of the intermediate shaft 1 relative to the reducer shaft by moving the two brackets left and right as a whole. Adjust the upper and lower axial and radial concentricity of the intermediate shaft 1 relative to the reducer shaft by adjusting the jack 4. After the concentricity of the intermediate shaft 1 is adjusted, take the intermediate shaft 1 as the reference, and adjust the concentricity of the motor relative to the intermediate shaft 1 by moving the motor left and right and adding or removing shims on the anchors.

Claims

1. A cooling tower fan reducer and motor concentricity adjustment bracket, characterized in that: The invention comprises two sets of brackets with the same structure arranged at both ends of the reducer and the intermediate shaft of the motor, each set of brackets comprises an upper bracket (2), a lower bracket (3) and a jack (4), the upper bracket (2) cooperates with the intermediate shaft, the upper bracket (2) is arranged on the jack (4), and the jack (4) is fixed on the lower bracket (3).

2. A cooling tower fan reducer and motor concentricity adjustment bracket according to claim 1, characterized in that: The upper bracket (2) is in an arc shape matching the intermediate shaft.

3. A cooling tower fan reducer and motor concentricity adjustment bracket according to claim 1, characterized in that: The lower bracket (3) is an integrated structure consisting of a middle column and flat plates at the upper and lower ends.

4. A cooling tower fan reducer and motor concentricity adjustment bracket according to claim 3, characterized in that: The cross-sectional dimensions of the upright column in the middle of the lower bracket (3) are smaller than the dimensions of the flat plates at the upper and lower ends.

5. A cooling tower fan reducer and motor concentricity adjustment bracket according to claim 1, characterized in that: The jack (4) is located between the upper bracket (2) and the lower bracket (3).

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