A height adjustment shim for the base of a high-voltage motor
By designing and installing transition grooves and lifting transition grooves at the base of the high-voltage motor, the problems of complex traditional shim adjustment and friction displacement are solved, achieving efficient and precise shim adjustment, simplifying the operation process, and improving equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ELECTRIC GRP SHANGHAI ELECTRIC MASCH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-03
Smart Images

Figure CN224459519U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor manufacturing technology, specifically to a height adjustment shim for the feet of a high-voltage motor. Background Technology
[0002] In the installation and maintenance of high-voltage motors, adjusting shims are indispensable components used to adjust the levelness and height of the motor feet. Traditional high-voltage motor foot adjusting shims are generally made of ordinary steel and have lifting holes and foot mounting holes, both located inside the shim. Figure 1 After disassembling the motor, the shims can be replaced or adjusted to ensure stable operation and performance of the motor in practical applications.
[0003] Traditional shims have several drawbacks. When adjusting the height or level of a high-voltage motor, it is often necessary to use a crane to lift the motor from the base frame to a certain height before replacing the shims. This process is complex, consumes significant manpower, resources, and time, increases maintenance costs, and may damage the motor's base due to repeated lifting, affecting the stability and normal operation of the equipment. Furthermore, the traditional design has limitations: during installation and adjustment, the shims may shift due to bolt friction, resulting in insufficient adjustment accuracy and hindering rapid installation. The adjustment process requires multiple shim movements, making the operation cumbersome and inefficient. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a high-voltage motor foot height adjustment shim, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a high voltage motor base height adjustment shim, comprising: an adjustment shim body installed between the base plate and the frame, the base plate being provided with a first waist-shaped mounting hole and a waist-shaped lifting hole, and the frame being provided with a second waist-shaped mounting hole at the position corresponding to the first waist-shaped mounting hole;
[0006] An installation transition groove penetrating the adjusting shim body is provided at the position of the first waist-shaped mounting hole corresponding to the base foot plate, and a lifting transition groove penetrating the adjusting shim body is provided at the position of the waist-shaped lifting hole corresponding to the base foot plate.
[0007] Both the mounting transition groove and the lifting transition groove are rounded transition grooves, extending along the length direction of the first waist-shaped mounting hole and the waist-shaped lifting hole on the corresponding base foot plate. The edges of both the mounting transition groove and the lifting transition groove extend to the side edge of the adjusting shim body.
[0008] Preferably, the arc diameter of the mounting transition groove is greater than or equal to the diameter of the first waist-shaped mounting hole, and the arc diameter of the lifting transition groove is greater than or equal to the diameter of the waist-shaped lifting hole;
[0009] The width of the rounded transition groove is equal to the arc diameter of the rounded transition groove.
[0010] Preferably, the length of the adjusting shim body is equal to the length of the base plate, and the width of the adjusting shim body is equal to the width of the base plate.
[0011] Preferably, the distance from the center of the arc of the mounting transition groove to the edge of the adjusting shim body is equal to the distance from the center of the first waist-shaped mounting hole of the base plate to the edge of the base plate.
[0012] Preferably, the distance from the center of the arc of the lifting transition groove to the edge of the adjusting shim body is equal to the distance from the center of the waist-shaped lifting hole of the base foot plate to the edge of the base plate.
[0013] Preferably, the distance between the mounting transition groove and the lifting transition groove is equal to the distance between the first waist-shaped mounting hole and the waist-shaped lifting hole on the base plate.
[0014] Preferably, the adjusting shim body is made of stainless steel.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The height adjustment shim for this high-voltage motor base features an installation transition groove and a lifting transition groove. The edges of both grooves extend to the side edge of the shim body, allowing for direct removal, addition, or removal from one side between the base plate and the frame. The arc diameter of the installation transition groove is greater than or equal to the diameter of the first waist-shaped mounting hole, and the arc diameter of the lifting transition groove is greater than or equal to the diameter of the waist-shaped lifting hole. This ensures the bolts can pass smoothly while reducing friction between the shim body and the bolts. This waist-shaped hole design allows the shim to be removed or inserted directly from one side without completely disassembling the motor bolts while the motor is installed, facilitating adjustment and replacement of the shim body. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the existing adjusting shim body structure;
[0018] Figure 2 This is a schematic diagram of the adjusting shim body structure of this utility model;
[0019] Figure 3 This is a front view structural diagram of the installation of the adjusting shim body, the base plate, and the base frame of this utility model;
[0020] Figure 4This is a side view of the installation structure of the adjusting shim body, the base plate, and the base frame of this utility model.
[0021] Figure 5 This is a partial side sectional view of the location of the second waist-shaped mounting hole on the base frame of this utility model.
[0022] Figure 6 This utility model Figure 5 Schematic diagram of the side section structure at position AA;
[0023] Figure 7 This is a front view structural diagram of the base plate of this utility model;
[0024] Figure 8 This is a side view of the base plate structure of the present invention.
[0025] In the figure: 1. Base plate; 101. First waist-shaped mounting hole; 102. Waist-shaped lifting hole; 2. Base frame; 201. Second waist-shaped mounting hole; 3. Adjusting shim body; 301. Mounting transition groove; 302. Lifting transition groove. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-8 A high-voltage motor base height adjustment shim includes: an adjustment shim body 3 installed between the base foot plate 1 and the base frame 2, the adjustment shim body 3 being made of stainless steel, the base foot plate 1 having a first waist-shaped mounting hole 101 and a waist-shaped lifting hole 102 respectively, and the base frame 2 having a second waist-shaped mounting hole 201 corresponding to the position of the first waist-shaped mounting hole 101;
[0028] An installation transition groove 301 through the adjusting shim body 3 is provided at the position of the first waist-shaped mounting hole 101 corresponding to the base foot plate 1, and a lifting transition groove 302 through the adjusting shim body 3 is provided at the position of the waist-shaped lifting hole 102 corresponding to the base foot plate 1.
[0029] Both the mounting transition groove 301 and the lifting transition groove 302 are rounded transition grooves, extending along the length direction of the first waist-shaped mounting hole 101 and the waist-shaped lifting hole 102 on the corresponding base foot plate 1. The edges of the mounting transition groove 301 and the lifting transition groove 302 extend to the side edge of the adjusting pad body 3.
[0030] The arc diameter of the mounting transition groove 301 is greater than or equal to the diameter of the first waist-shaped mounting hole 101, the arc diameter of the lifting transition groove 302 is greater than or equal to the diameter of the waist-shaped lifting hole 102, and the width of the rounded corner transition groove is equal to the arc diameter of the rounded corner transition groove.
[0031] The length of the adjusting shim body 3 is equal to the length of the base plate 1, the width of the adjusting shim body 3 is equal to the width of the base plate 1, the distance from the center of the arc of the mounting transition groove 301 to the edge of the adjusting shim body 3 is equal to the distance from the center of the first waist-shaped mounting hole 101 of the base plate 1 to the edge of the base plate, the distance from the center of the arc of the lifting transition groove 302 to the edge of the adjusting shim body 3 is equal to the distance from the center of the waist-shaped lifting hole 102 of the base plate 1 to the edge of the base plate, and the distance from the mounting transition groove 301 to the lifting transition groove 302 is equal to the distance between the first waist-shaped mounting hole 101 and the waist-shaped lifting hole 102 on the base plate 1.
[0032] like Figure 2 , Figure 7 and Figure 8 As shown, the length of the adjusting shim body 3 corresponds to "size A". Figure 4 The length of the base plate 1 is "size A", and the width of the adjusting shim body 3 is "size B". Figure 8 The width of the base plate 1 is "size B". The distance from the center of the arc of the mounting transition groove 301 to the left edge of the adjusting shim body 3 is "size C". The distance from the center of the first waist-shaped mounting hole 101 of the base plate 1 to the left edge of the base plate is "size C". The arc diameter of the mounting transition groove 301 is "size D". Figure 8 The diameter of the first waist-shaped mounting hole 101 is "D dimension". The distance from the center of the arc of the mounting transition groove 301 to the bottom edge of the adjusting shim body 3 is "E dimension", corresponding to the distance from the center of the first waist-shaped mounting hole 101 to the bottom edge of the base plate 1 is "E dimension". The distance from the mounting transition groove 301 to the lifting transition groove 302 is "F dimension", corresponding to the distance from the first waist-shaped mounting hole 101 and the waist-shaped lifting hole 102 on the base plate 1 is "F dimension". The thickness of the adjusting shim body 3 is "G dimension", with different thickness specifications for easy installation and adjustment. The arc diameter of the lifting transition groove 302 is "H dimension", corresponding to the diameter of the waist-shaped lifting hole 102 is "H dimension". These dimensions correspond one-to-one to ensure accurate positioning during installation. They are determined according to different motor specifications and different requirements, and are customizable.
[0033] The edges of both the mounting transition groove 301 and the lifting transition groove 302 extend to the side edge of the adjusting shim body 3, allowing them to be directly removed, added, or removed from one side between the base plate 1 and the base frame 2. The arc diameter of the mounting transition groove 301 is greater than or equal to the diameter of the first waist-shaped mounting hole 101, and the arc diameter of the lifting transition groove 302 is greater than or equal to the diameter of the waist-shaped lifting hole 102, ensuring that the bolts can pass smoothly while reducing friction between the adjusting shim body 3 and the bolts. This waist-shaped hole design allows the shim to be directly removed or inserted from one side without completely disassembling the motor bolts when the motor is installed, facilitating the adjustment and replacement of the adjusting shim body 3.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high voltage motor foot height adjustment spacer, characterized by, include: An adjusting shim body (3) is installed between the base foot plate (1) and the base frame (2). The base foot plate (1) is provided with a first waist-shaped mounting hole (101) and a waist-shaped lifting hole (102). The base frame (2) is provided with a second waist-shaped mounting hole (201) at the position corresponding to the first waist-shaped mounting hole (101). An installation transition groove (301) penetrating the adjusting shim body (3) is provided at the position of the first waist-shaped mounting hole (101) corresponding to the base foot plate (1), and a lifting transition groove (302) penetrating the adjusting shim body (3) is provided at the position of the waist-shaped lifting hole (102) corresponding to the base foot plate (1). The installation transition groove (301) and the lifting transition groove (302) are both rounded transition grooves, extending along the length direction of the first waist-shaped mounting hole (101) and the waist-shaped lifting hole (102) on the corresponding base foot plate (1). The edges of the installation transition groove (301) and the lifting transition groove (302) extend to the side edge of the adjusting pad body (3).
2. A high voltage motor foot height adjustment spacer according to claim 1, wherein, The arc diameter of the mounting transition groove (301) is greater than or equal to the diameter of the first waist-shaped mounting hole (101), and the arc diameter of the lifting transition groove (302) is greater than or equal to the diameter of the waist-shaped lifting hole (102). The width of the rounded transition groove is equal to the arc diameter of the rounded transition groove.
3. A high voltage motor foot height adjustment spacer according to claim 1, wherein, The length of the adjusting shim body (3) is equal to the length of the base plate (1), and the width of the adjusting shim body (3) is equal to the width of the base plate (1).
4. A high voltage motor foot height adjustment spacer according to claim 3, wherein, The distance from the center of the arc of the mounting transition groove (301) to the edge of the adjusting shim body (3) is equal to the distance from the center of the first waist-shaped mounting hole (101) of the base foot plate (1) to the edge of the base plate.
5. A high voltage motor foot height adjustment spacer according to claim 4, wherein, The distance from the center of the arc of the lifting transition groove (302) to the edge of the adjusting shim body (3) is equal to the distance from the center of the waist-shaped lifting hole (102) of the base foot plate (1) to the edge of the base foot plate.
6. A high voltage motor foot height adjustment spacer according to claim 5, wherein, The distance between the installation transition groove (301) and the lifting transition groove (302) is equal to the distance between the first waist-shaped mounting hole (101) and the waist-shaped lifting hole (102) on the base plate (1).
7. A high voltage motor foot height adjustment spacer according to claim 1, wherein, The adjusting shim body (3) is made of stainless steel.