Motor position adjusting mechanism

Abstract

The utility model discloses a motor position adjusting mechanism which comprises a bedplate and a supporting plate which are used for being connected with a motor foot margin, and the supporting plate and the bedplate are located at the upper end and the lower end of the motor foot margin respectively and sequentially penetrate through the motor foot margin from top to bottom through a foot margin bolt. The foundation bolts are in threaded connection with foundation bolt holes formed in the supporting plates and bolt holes formed in the bedplate, jackscrew adjusting nuts are fixed to the outer sides of the bottoms of the supporting plates, and jackscrews making contact with motor foundation feet are connected into the jackscrew adjusting nuts in a threaded mode; the motor adjusting device has the characteristics of simple operation and no damage to the structure of the motor, can achieve the purpose of accurate adjustment only through the adjustment of the jackscrew, can be independently operated by one person to adjust the motor, saves the labor cost, meets the requirements of flexible taking and use, and is convenient to use on a plurality of motors.

Description

Technical Field

[0001] This utility model belongs to the field of motor alignment technology, specifically, it relates to a motor position adjustment mechanism. Background Technology

[0002] Alignment of couplings is a crucial task in the installation and maintenance of transmission equipment such as steam turbine generators, water pumps, fans, and coal mills. Misalignment of couplings in rotating equipment will inevitably cause abnormal vibrations in the unit. Therefore, after installation or maintenance, couplings in rotating equipment must be aligned to ensure that the center deviation between the two shafts is within the allowable range. The smaller the center deviation, the more precise the alignment, the better the operation of the rotating equipment, and the longer its service life. If the center deviation exceeds the allowable value, it may cause excessively high bearing temperatures, vibrations, and bearing wear, seriously threatening the safe and stable operation of the equipment.

[0003] When aligning couplings during maintenance or installation, pumps, fans, coal mills, etc., are often used as references to adjust the position of the motor in order to achieve the purpose of centering. However, when aligning large motors, there are often situations where the bottom of the motor and the platform below are almost the same size, making it impossible to adjust the left and right position of the motor and the left and right opening value of the coupling.

[0004] Traditional correction methods are mostly of the following two types:

[0005] 1. Using a sledgehammer to strike the motor feet to move it is easy to damage the motor base feet and other motor components (because the feet are mostly made of cast iron, and striking them can easily cause breakage). When using a sledgehammer, if the force is too small, it is difficult to move the motor. If the force is too large, the motor position is easy to deviate from the center position. Therefore, the adjustment accuracy is low.

[0006] 2. Weld a base to the bottom of the motor and add a set screw or use a jack to adjust the left and right position of the motor. This method requires the space around the motor. On site, there are cable trays around the motor base, so the installation conditions are met. However, it is not suitable for all large motors. Welding the base can easily generate residual welding stress, which can deform the base and affect the alignment of the coupling. During later operation, it can easily cause safety hazards such as tripping and bumping when people pass by. Utility Model Content

[0007] To address the above deficiencies, this utility model provides a motor position adjustment mechanism, including a platform and a support plate for connecting to the motor base. The support plate and the platform are located at the upper and lower ends of the motor base, respectively, and are passed through from top to bottom by anchor bolts. The anchor bolts are threadedly connected to the anchor bolt holes in the support plate and the bolt holes in the platform.

[0008] A set screw adjusting nut is fixed to the outer side of the bottom of the support plate, and the set screw adjusting nut is internally threaded with a set screw that contacts the motor foot.

[0009] Furthermore, the set screw is located on the center line of the support plate, and its extension coincides with the center of the anchor bolt hole.

[0010] Furthermore, the anchor bolts are not in a tightened state.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] Compared to traditional correction methods, this method avoids the risk of injury to personnel caused by using sledgehammers and jacks, and avoids the safety hazards of tripping and bumping when personnel pass by during operation caused by using welded bases with set screws. It is characterized by simple operation, no damage to the motor structure itself, and precise adjustment can be achieved by adjusting the set screws alone. One person can operate independently when adjusting the motor, saving labor costs, while also being flexible and easy to use on multiple motors. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the present invention after installation.

[0014] Figure 2 This is a bottom view of the support plate.

[0015] Figure 3 This is a cross-sectional view of the support plate.

[0016] In the diagram: 1. Set screw; 2. Support plate; 21. Anchor bolt hole; 3. Set screw adjusting nut; 4. Anchor bolt; 5. Motor foot; 6. Platform. Detailed Implementation

[0017] To facilitate understanding of this utility model, the device of this utility model will be described more fully below with reference to the accompanying drawings. Embodiments of the device are shown in the drawings. However, this device can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1-3As shown, this embodiment provides a motor position adjustment mechanism, including a platform 6 and a support plate 2 for connecting to the motor foot 5. The support plate 2 and the platform 6 are located at the upper and lower ends of the motor foot 5 respectively and are passed through from top to bottom by anchor bolts 4. The anchor bolts 4 are threadedly connected to the anchor bolt holes 21 opened at the support plate 2 and the bolt holes opened at the platform 6 respectively.

[0020] A set screw adjusting nut 3 is fixed on the outer side of the bottom of the support plate 2. The set screw adjusting nut 3 is internally threaded with a set screw 1 that contacts the motor foot 5. The set screw 1 is located on the center line of the support plate 2, and its extension line coincides with the center of the foot bolt hole 21.

[0021] It should be noted that the motor foot 5, support plate 2, platform 6 and support plate 2 in this embodiment are all made of carbon steel, which has a simple structure, reduces material costs, and avoids additional costs due to damage to the motor foot.

[0022] In this embodiment, a motor position adjustment mechanism is described. After the motor is reinstalled on the platform 6 and its vertical opening and height adjustment are completed, the support plate 2 is placed above the motor feet 5. Then, the anchor bolts 4 are passed through the anchor bolt holes 21 and screwed into the bolt holes of the platform 6 (note that the anchor bolts 4 should not be tightened too much; some space should be left for the motor feet 5 to move, i.e., the diameter of the bolt hole at the motor feet 5 should be greater than the diameter of the anchor bolt 4). The remaining three motor feet 5 are then installed in the same manner. When the position of a particular motor foot 5 needs to be adjusted, a wrench is used to turn the set screw 1 until it contacts the motor foot 5, and then the wrench is pushed inward (i.e.,...). Figure 1 (on the left side), the support plate 2 will then move outward (i.e. Figure 1 (on the right side of the middle), to realize the limit of the anchor bolt 4, thus completing the function of pushing the motor foot 5 to realize the motor correction.

[0023] It should be noted that the structure described in this utility model can be implemented in many different forms and is not limited to the embodiments described. Any equivalent transformations made by those skilled in the art based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, such as the loading and unloading of other items, are included within the protection scope of this utility model.

Claims

1. An electric motor position adjustment mechanism characterized by: The application relates to a motor foot connecting device comprising a base plate and a support plate for connecting with a motor foot, the support plate and the base plate are located at the upper and lower ends of the motor foot respectively and are penetrated by a foot bolt from top to bottom in sequence, the foot bolt is in threaded connection with a foot bolt hole arranged at the support plate and a bolt hole arranged at the base plate respectively; An outside of the bottom of the support plate is fixed with a jackscrew adjusting nut, the jackscrew adjusting nut is in internal thread connection with a jackscrew in contact with the motor foot.

2. A motor position adjustment mechanism as claimed in claim 1, characterized in that: The jackscrew is located at the center line of the support plate, and an extension line is coincident with the center of the foot bolt hole.

3. A motor position adjustment mechanism as claimed in claim 1, characterized in that: The foot bolt is not in a tightened state.

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