Synchronous machine guide vane gap top screw

Abstract

The utility model relates to synchronous motor guide shoe gap adjustment technical field discloses a kind of synchronous motor guide shoe gap top silk, including top hat, screw rod and support seat, the front end of top hat is conical or pyramid, rear end is set screw hole to the inside of top hat;The screw rod is matched with the screw hole of top hat, can be spun into the inside of top hat;The support seat is plate, the top surface of support seat is plane, bottom is arc surface, the top surface is set screw hole to support seat inside, the screw rod is matched with the screw hole of support seat, can be spun into the inside of support seat;This synchronous motor guide shoe gap top silk structure is simple, easy to operate, improves the working efficiency and accuracy of synchronous motor guide shoe gap adjustment.

Description

Technical Field

[0001] This utility model relates to the field of synchronous motor guide tile gap adjustment technology, specifically to a synchronous motor guide tile gap set screw. Background Technology

[0002] Due to manufacturing and installation limitations, the centerline of the rotor in a synchronous motor unit may not coincide with the installation centerline. Therefore, it is necessary to adjust the gap between the rotor and the guide bearing. The centerline during rotation must be used as the reference when adjusting the bearing gap. The single-sided gap between the guide bearing and the guide bearing head support surface is generally designed to be 0.10-0.15mm. Its distribution should be determined according to the actual position of the axis and the azimuth value. The guide bearing gap should be adjusted symmetrically, and the adjustment should be measured under the monitoring of a dial indicator after the support bolts are locked. Simultaneously, during unit maintenance, there are many detailed adjustment requirements for the upper and lower guide bearing support plates and bearing seats, the local gaps between the support plates and bearing seats, and the gap between the upper pressure plate and the bearing. The traditional method of adjustment is to use a jack to hold the guide bearing on the thrust head and measure the data at the gap between the back plane of the guide bearing and the support bolt. However, this method requires the use of a jack, the tool usage is complex, the measurement procedure is cumbersome, and the measurement is prone to inaccurate data due to jack instability, making precise adjustment difficult. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a synchronous motor guide tile gap set screw, which improves the efficiency and accuracy of synchronous motor guide tile gap adjustment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: The guide bearing clearance set screw for a synchronous motor includes a cap, a screw, and a support base. The front end of the cap is conical or pyramidal, and the rear end has a screw hole inside the cap. The screw matches the screw hole of the cap and can be screwed into the cap. The support base is plate-shaped, with a flat top surface and an arc-shaped bottom surface. The top surface has a screw hole inside the support base, and the screw matches the screw hole of the support base and can be screwed into the support base.

[0005] In this invention, preferably, the cross-section of the support base is fan-shaped.

[0006] In this invention, preferably, the rear end of the top cap is nut-shaped.

[0007] In this utility model, preferably, a locking nut is also included, which is matched with the screw and sleeved on the screw, located between the top cap and the support seat.

[0008] In this invention, preferably, the bottom surface of the support base is inlaid with a magnet.

[0009] In this utility model, preferably, both ends of the bottom surface of the support base are provided with support plate grooves extending into the support base, and both support plate grooves are parallel to the corresponding side surfaces. An auxiliary support plate is installed in the support plate grooves. A sliding groove is provided on the side surface of the support base corresponding to the support plate grooves, and a positioning screw passes through the sliding groove and is threadedly connected to the auxiliary support plate.

[0010] In this invention, preferably, the bottom surface of the auxiliary support plate has an arc-shaped transition at the junction of the surfaces.

[0011] In this invention, preferably, the curvature of the bottom surface of the support base matches the inner surface of the oil pan of the synchronous motor.

[0012] In this invention, preferably, the top of the cap has a rounded transition.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model features a simple and easy-to-operate synchronous motor guide pad gap adjustment screw structure, improving the efficiency and accuracy of guide pad gap adjustment. The top of the cap is designed with a rounded transition, increasing the contact area between the cap and the guide pad and enhancing stability. The support base's cross-section is fan-shaped, saving material and providing a larger top surface area for easy screw hole drilling. The fan shape also reduces machining difficulty. A locking nut secures the support base. A magnet is embedded in the bottom of the support base to prevent the adjustment screw from falling into the gap between the guide pad and the oil pan, protecting the motor unit. An auxiliary support plate further supports the adjustment screw, significantly reducing slippage or wobbling. The curvature of the support base's bottom surface matches the inner surface of the synchronous motor's oil pan, maximizing the adjustment screw's stability and preventing slippage or wobbling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the guide bearing gap set screw of a synchronous motor according to an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the guide bearing gap set screw of a synchronous motor according to another embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the guide bearing gap set screw of a synchronous motor according to another embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the bottom surface of the support seat in the gap screw of the synchronous motor guide bearing, according to another embodiment of this utility model.

[0018] Figure 5 This is an exploded view of the structure of the guide bearing gap set screw of a synchronous motor according to another embodiment of this utility model.

[0019] Figure 6 This is a schematic diagram showing the usage state of the guide bearing gap set screw of a synchronous motor according to another embodiment of this utility model.

[0020] In the attached diagram: 1. Top cap; 2. Screw; 3. Support base; 31. Support plate groove; 32. Slide groove; 4. Locking nut; 5. Magnet; 6. Auxiliary support plate; 7. Positioning screw; 8. Oil pan; 9. Guide plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is described as "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please see Figure 1 A preferred embodiment of this utility model provides a guide bearing clearance set screw for a synchronous motor, comprising a cap 1, a screw 2, and a support base 3. The front end of the cap 1 is conical or pyramidal, and the rear end has a screw hole extending into the interior of the cap 1. The screw 2 matches the screw hole of the cap 1 and can be screwed into the interior of the cap 1. The support base 3 is plate-shaped, with a flat top surface and an arc-shaped bottom surface. A screw hole is formed in the top surface of the support base 3, and the screw 2 matches the screw hole of the support base 3 and can be screwed into the interior of the support base 3.

[0025] refer to Figure 6 When using the synchronous motor guide tile gap adjustment screw, rotate the top cap 1 and / or support seat 3 of the screw to shorten the screw, making it easier to insert into the gap between the guide tile 9 and the oil basin 8. After placing the screw in the gap between the guide tile 9 and the oil basin 8, the top cap 1 is perpendicular to the surface of the guide tile, and the support seat 3 is perpendicular to the inner surface of the oil basin 8. Then rotate the top cap 1 to lengthen the screw, so that the top cap 1 of the screw presses against the guide tile 9, and the support seat 3 presses against the oil basin 8, thereby opening the gap between the guide tile 9 and the oil basin 8, acting as a jack to facilitate subsequent adjustment operations.

[0026] By shaping the front end of the top cap 1 into a conical or pyramidal shape, the contact area between the top cap 1 and the guide shoe can be reduced, facilitating the rotation of the top cap 1. Constructing the bottom surface of the support base 3 into an arc surface increases the contact area between the bottom surface of the support base 3 and the oil pan 8, making the support of the set screw more stable and less prone to slippage. The synchronous motor guide shoe gap set screw structure of this utility model is simple, easy to operate, and improves the efficiency and accuracy of synchronous motor guide shoe gap adjustment.

[0027] Furthermore, the top of the top cap 1 is designed with a rounded transition, that is, the top of the top cap 1 is chamfered, which makes the top of the top cap 1 become arc-shaped, which increases the contact area between the top cap 1 and the guide tile and increases stability.

[0028] In a preferred embodiment of this invention, the support base 3 has a fan-shaped cross-section, and the rear end of the top cap 1 is nut-shaped, such as... Figure 2 As shown. Theoretically, the cross-section of the support base 3 can be of any shape. For example, if the two sides of the support base 3 are set to be perpendicular to the top surface, the cross-section would be a rectangle with three sides plus an arc. However, such a shape is uneconomical and wastes some material. Therefore, the cross-section of the support base 3 is set to a fan shape, which saves material and provides a larger top surface area, making it easier to make screw holes. At the same time, the fan shape, as a regular shape, also reduces the processing difficulty. The fan shape mentioned here is not a fan shape in the strict mathematical sense, but a part of a fan shape. In fact, the cross-section of the support base 3 in this embodiment is the part remaining after the top of the fan shape has been cut off by an isosceles triangle. The rear end of the top cap 1 is nut-shaped, which can increase the screw hole depth of the top cap 1, expand the range of changes in the length of the set screw, and make it suitable for various gap sizes. The nut shape also makes it easier for technicians to rotate the top cap 1, improving the convenience of operation.

[0029] In a preferred embodiment of this utility model, such as Figure 3As shown, the synchronous motor guide bearing clearance set screw also includes a locking nut 4. The locking nut 4 matches the screw 2 and is sleeved on the screw 2, located between the top cap 1 and the support seat 3. The locking nut 4 serves to lock the support seat 3. Since the support seat 3 and the screw 2 are connected by threads, there may be some wobbling when the guide bearing is supported between the oil pan 8. To overcome this wobbling, the locking nut 4 can be screwed toward the support seat 3 and tightened so that it presses firmly against the support seat 3, thus preventing wobbling between the support seat 3 and the screw 2.

[0030] In a preferred embodiment of this utility model, such as Figure 4 As shown, a magnet 5 is embedded in the bottom surface of the support base 3. Since the oil pan 8 is made of iron, the set screw with the magnet 5 embedded in it will be attracted to the surface of the oil pan 8. In this way, when the set screw is not tightened, it will not fall into the gap between the guide plate and the oil pan 8, thus protecting the safety of the motor unit.

[0031] In a preferred embodiment of this utility model, such as Figure 3 and Figure 5 As shown, support plate grooves 31 are provided at both ends of the bottom surface of the support base 3. The two support plate grooves 31 are parallel to the corresponding side. An auxiliary support plate 6 is installed in the support plate groove 31. A sliding groove 32 is provided on the side of the support base 3 corresponding to the support plate groove 31. The positioning screw 7 passes through the sliding groove 32 and is threaded to the auxiliary support plate 6.

[0032] Although the bottom surface of the support base 3 is curved, it does not necessarily fit perfectly against the inner surface of the oil basin 8. When the contact area between the support base 3 and the oil basin 8 is insufficient, the set screw may slide or wobble relative to the oil basin 8. The application of the auxiliary support plate 6 can avoid this situation. When the contact area between the support base 3 and the oil basin 8 is insufficient, the auxiliary support plate 6 can be pushed out and pressed against the inner surface of the oil basin 8. After the auxiliary support plate 6 extends to a suitable length, the positioning screw 7 is tightened. The pressure of the auxiliary support plate 6 presses against the inner wall of the support plate groove 31, and the friction of the support plate groove 31 prevents the auxiliary support plate 6 from sliding, thereby achieving the purpose of positioning. By using the auxiliary support plate 6, the set screw can be supported and fixed, significantly improving the situation of sliding or wobbling. Furthermore, the bottom of the auxiliary support plate 6 has a curved transition at the interface between surfaces, that is, the bottom of the auxiliary support plate 6 is chamfered, which makes the bottom of the auxiliary support plate 6 curved, which also increases the contact area between the auxiliary support plate 6 and the oil basin 8 and increases stability.

[0033] like Figure 6As shown, when adjusting the gap using the guide tile gap screw of the synchronous motor, rotate the top cap 1 and / or support seat 3 of the screw to shorten the screw, making it easier to insert into the gap between the guide tile 9 and the oil basin 8. After placing the screw in the gap between the guide tile 9 and the oil basin 8, the top cap 1 is perpendicular to the surface of the guide tile, and the support seat 3 is perpendicular to the inner surface of the oil basin 8. Use the magnet 5 to make the screw adhere to the inner surface of the oil basin 8. Rotate the locking nut 4 to lock the support seat 3. Then rotate the top cap 1 to lengthen the screw, so that the top cap 1 of the screw presses against the guide tile 9, and the support seat 3 presses against the oil basin 8. Draw out the auxiliary support plate 6. After the auxiliary support plate 6 reaches the appropriate position, tighten the positioning screw 7 to fix the position of the auxiliary support plate 6, thereby achieving the purpose of opening the gap between the guide tile 9 and the oil basin 8, acting as a jack, and facilitating subsequent adjustment operations.

[0034] In a preferred embodiment of this invention, the curvature of the bottom surface of the support base 3 matches the inner surface of the oil pan 8 of the synchronous motor. This ensures that the bottom surface of the support base 3 completely conforms to the inner surface of the oil pan 8, maximizing the contact area and optimizing the stability of the set screw, thus preventing slippage or wobbling. Based on different specifications of the synchronous motor unit, several different curvatures of the inner surface of the oil pan 8 can be identified, and several different specifications of synchronous motor guide bearing gap set screws can be designed accordingly. During use, different specifications of synchronous motor guide bearing gap set screws can be selected based on the different specifications of the synchronous motor.

[0035] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A guide bearing clearance set screw for a synchronous motor, characterized in that, Includes top cap, screw, and support base. The front end of the top cap is conical or pyramidal, and the rear end has a screw hole inside the top cap. The screw is matched with the screw hole of the top cap and can be screwed into the interior of the top cap; The support base is plate-shaped, with a flat top surface and an arc-shaped bottom surface. A screw hole is formed inside the support base on the top surface, and the screw matches the screw hole of the support base and can be screwed into the interior of the support base.

2. The synchronous machine dam ring gap top wire of claim 1, wherein, The cross-section of the support base is fan-shaped.

3. The synchronous motor guide bearing gap set screw according to claim 1, characterized in that, The rear end of the top cap is nut-shaped.

4. The synchronous motor guide bearing gap set screw according to claim 1, characterized in that, It also includes a locking nut, which matches the screw and is sleeved on the screw, between the top cap and the support.

5. The synchronous machine collector bar gap top wire of claim 1, wherein, The bottom surface of the support is inlaid with magnets.

6. The synchronous motor guide bearing gap set screw according to claim 1, characterized in that, Both ends of the bottom surface of the support base are provided with support plate grooves extending into the support base. Both support plate grooves are parallel to the corresponding side surfaces. An auxiliary support plate is installed in the support plate groove. A sliding groove is provided on the side surface of the support base corresponding to the support plate groove. The positioning screw passes through the sliding groove and is threadedly connected to the auxiliary support plate.

7. The synchronous machine dam ring gap top wire of claim 6, wherein, The bottom surface of the auxiliary support plate has an arc-shaped transition at the junction of the surfaces.

8. The synchronous motor guide bearing gap set screw according to claim 1, characterized in that, The curvature of the bottom surface of the support base matches the inner surface of the oil pan of the synchronous motor.

9. The synchronous machine guide vane gap set screw of claim 1, wherein, The top of the cap has a rounded transition.

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