An economical two-in-one generator end cover inspection tool
By designing an economical two-in-one generator end cap inspection tool, using the combination of circular ring gauges and depth rulers, the problems of low detection efficiency, high materials and high cost in the prior art are solved, and efficient and economical testing effects are achieved.
Patent Information
- Application Number
- CN202421565051.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The prior art is inefficient when detecting the end cap size and relative depth of the generator end cap, and the tool uses a lot of materials and is costly. It requires frequent replacement of the inspection tool, which increases operational complexity and production costs.
An economical two-in-one generator end cap inspection tool is designed, and a combination of a circular ring gauges and a depth ruler is used to simultaneously detect the stop size and depth ruler of the circular ring gauges, realizing the function of completing multiple inspections by a single tool.
The tooling can simultaneously detect the stop size and relative depth of the front and rear end cover of the generator, reducing operating steps, improving detection efficiency, reducing materials and costs, and simplifying the operation process.
Smart Images
Figure CN222747930U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of generator inspection, and particularly relates to an economical two-in-one generator end cover inspection tool. Background Art
[0002] During the production process of the generator end cover, two key dimensions need to be measured: the stop size of the front and rear end covers of the generator and the relative depth from the bottom surface of the stop of the front and rear end covers of the generator to the bottom of the bearing chamber.
[0003] The size of the stopper of the front and rear end covers of the generator is the size of the matching of the front and rear end covers and the stator core. If the size is too large, the long-term vibration after the generator stator is installed will cause the position of the stator core to move. If the eccentricity is serious, the outer edge of the rotor will rub against the stator, causing the generator to fail. If the size is too small, the stator cannot be assembled in the generator. The traditional tool for checking the size of the end cover stopper is a dumbbell-shaped through gauge and stop gauge inspection tool. One end of the dumbbell-shaped inspection gauge is a through gauge, and the other end is a stop gauge. During inspection, the through gauge and the stop gauge need to be matched with the end cover stopper respectively. This requires frequent picking up of the inspection gauge and turning it in direction, which is inefficient. In addition, the dumbbell-shaped inspection gauge uses a lot of materials, is complex to process, and is expensive.
[0004] The depth of the front cover affects whether the front bearing can be fully placed in the bearing chamber. If the depth is too shallow, the bearing cannot be placed. If the depth is too deep, the front bearing riveting will not be able to fix the bearing. The depth of the bearing chamber of the rear cover will match the rear bearing pressed into the rotor. The relative depth will affect the axial depth of the bearing, thus affecting the normal rotation of the rotor. The measurement of the end cover depth requires another gauge ring. During the inspection, the gauge ring is placed on the stop, and then the depth gauge is inserted into the center hole to read the depth from the top of the gauge to the bottom of the bearing chamber. The depth of the bearing chamber can only be obtained by subtracting the thickness of the gauge from the read depth. This is quite troublesome.
[0005] When testing these two indicators, it is necessary to constantly replace the inspection tools, or set up two processes for separate inspections. However, no matter which method is used, the work efficiency is low, and the cost of the two inspection tools is increased, which is not conducive to production use. Utility Model Content
[0006] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide an economical two-in-one generator end cover inspection tool to solve the problems mentioned in the background technology.
[0007] The above technical objectives of the utility model are achieved through the following technical solutions:
[0008] An economical two-in-one generator end cover inspection tool includes a circular go and no-go gauge, which is in the shape of a circular frustum with a center hole in the center. A depth gauge for synchronously measuring the depth of the end cover is installed on the inner wall of the center hole. The small diameter end of the circular go and no-go gauge is a go gauge surface, and the large diameter end is a no-go gauge surface. The diameter length of the go gauge surface is greater than the diameter length of the stop mouth and less than the length of the inner diameter of the end face; the diameter length of the no-go gauge surface is not less than the length of the inner diameter of the end face.
[0009] As a preferred technical solution, the diameter of the center hole is greater than the inner diameter of the bottom of the bearing chamber.
[0010] As a preferred technical solution, the depth gauge includes a symmetrical lifting member rotatably mounted on the inner wall of the center hole, a indicating plate is mounted on one end of the symmetrical lifting member close to the stop gauge surface, and an abutment plate is mounted on one end of the symmetrical lifting member close to the through gauge surface.
[0011] As a preferred technical solution, the installation points of the first cross plate and the second cross plate are located at the midpoint of the height of the center hole, and the abutment plate and the schematic plate are equal in length.
[0012] As a preferred technical solution, the abutment plate and the indication plate are both parallel to the axis of the central hole.
[0013] As a preferred technical solution, the symmetrical lifting member includes a first cross plate and a second cross plate rotatably mounted on the inner wall of the center hole. The first cross plate and the second cross plate are symmetrical about the center of the installation point. The two ends of the first cross plate and the two ends of the second cross plate are flush with each other. The two ends of the first cross plate are respectively slidably connected to a group of connecting plates, and the two ends of the second cross plate are respectively slidably connected to the two groups of connecting plates.
[0014] As a preferred technical solution, the indicator plate is installed on a group of connecting plates close to the stop gauge surface, and the abutment plate is installed on a group of connecting plates close to the through gauge surface.
[0015] As a preferred technical solution, it also includes a scale plate installed on the inner wall of the center hole, the scale plate is close to one end of the stop gauge surface and the scale plate is parallel to the indicator plate, and the length of the scale plate is not less than the length from the top of the indicator plate to the installation point of the symmetrical lifting member.
[0016] As a preferred technical solution, the scale plate is installed on the inner wall of the center hole through a mounting block, and the distance between the scale plate and the axis of the bottom of the bearing chamber is smaller than the radius of the inner wall of the bottom of the bearing chamber.
[0017] The utility model has the advantages that the inspection tool can simultaneously inspect the stop size of the front and rear end covers of the generator and measure the relative depth from the bottom surface of the stop of the front and rear end covers of the generator to the bottom of the bearing chamber, combining the two traditional inspection tools into one, reducing the process and improving the efficiency, reducing the material consumption and saving the cost.
[0018] When measuring the relative depth from the bottom surface of the stopper of the front and rear end covers of the generator to the bottom of the bearing chamber, the data can be read quickly without taking an additional ruler to measure with traditional inspection tools. The operation is simpler, saving operation time and improving work efficiency.
[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a three-dimensional structural diagram of an economical two-in-one generator end cover inspection tooling proposed by the utility model;
[0021] Figure 2 This is a left view of an economical two-in-one generator end cover inspection tool proposed by the utility model;
[0022] Figure 3 For this utility model Figure 2 The sectional three-dimensional structure diagram in the AA direction;
[0023] Figure 4 For this utility model Figure 4 The enlarged view of point B;
[0024] Figure 5 For this utility model Figure 2 Sectional front view in the AA direction.
[0025] Figure numerals: 1. circular ring go and no-go gauge; 11. go gauge surface; 12. no-go gauge surface; 13. center hole; 2. depth gauge; 21. mounting block; 22. scale plate; 23. first cross plate; 24. second cross plate; 25. connecting plate; 26. sliding groove; 27. abutment plate; 28. schematic plate. DETAILED DESCRIPTION
[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0027] Example 1
[0028] refer to Figures 1 to 5The economical two-in-one generator end cover inspection tool described in this embodiment includes a circular go and no-go gauge 1, which is an annular frustum with a center hole 13 in the center. The small diameter end of the circular go and no-go gauge 1 is a go gauge surface 11, and the large diameter end is a stop gauge surface 12. The diameter length of the go gauge surface 11 is greater than the diameter length of the stop mouth and less than the length of the inner diameter of the end face; the diameter length of the no-go gauge surface 12 is not less than the length of the inner diameter of the end face.
[0029] Preferably, the diameter length of the central hole 13 is greater than the length of the inner diameter of the bottom of the bearing chamber.
[0030] When inspecting the stop size of the front and rear end covers of the generator: if the through gauge surface 11 of the circular go / no-go gauge 1 can be placed on the stop and the no-go gauge surface 12 cannot be placed on the stop, it is qualified; if the through gauge surface 11 cannot be placed on the stop, the size is too small; if the no-go gauge surface 12 can be placed on the stop, the size is too large.
[0031] A depth gauge 2 for synchronously measuring the depth of the end cover is installed on the inner wall of the center hole 13. The depth gauge 2 includes a mounting block 21, on which a first cross plate 23 and a second cross plate 24 are rotatably mounted. The first cross plate 23 and the second cross plate 24 are symmetrical about the center of the mounting point, and both ends of the first cross plate 23 and the second cross plate 24 are flush respectively. The depth gauge 2 also includes two groups of connecting plates 25, on which two groups of sliding grooves 26 are opened. The connecting plate 25 is slidably connected to the first cross plate 23 and the second cross plate 24 through the two groups of sliding grooves 26 thereon, respectively. A schematic plate 28 is vertically mounted on the connecting plate 25 near one end of the stop gauge surface 12, and an abutment plate 27 is vertically mounted on the connecting plate 25 near one end of the through gauge surface 11.
[0032] Preferably, the installation point of the first cross plate 23 and the second cross plate 24 is located at the midpoint of the height of the center hole 13, that is, the installation point of the first cross plate 23 and the second cross plate 24 is equal to the length of the through gauge surface 11 and the stop gauge surface 12, and this length is h 2 , the abutment plate 27 and the indication plate 28 are equal in length and this length is h 1 .
[0033] Preferably, a scale plate 22 is installed on one end of the mounting block 21 close to the stop gauge surface 12. The scale plate 22 is parallel to the indicator plate 28 and the length of the scale plate 22 is not less than the length from the top of the indicator plate 28 to the installation point of the symmetrical lifting member.
[0034] The distance between the scale plate 22 and the axis of the bottom of the bearing chamber is smaller than the radius of the inner wall of the bottom of the bearing chamber.
[0035] When measuring the relative depth from the bottom surface of the stopper of the front and rear end covers of the generator to the bottom of the bearing chamber: place the through gauge surface 11 on the stopper, the abutment plate 27 abuts against the bottom of the bearing chamber, the abutment plate 27 pushes the connecting plate 25 connected thereto close to the stop gauge surface 12, the first cross plate 23 and the second cross plate 24 are squeezed and rotated upward by the connecting plate 25, at this time the distance between the two groups of connecting plates 25 and the mounting point of the first cross plate 23 is a, the height of the indicator plate 28 on the scale plate 22 is the instantaneous height, when the first cross plate 23 is located at the innermost side of the sliding groove 26, the length from the connecting plate 25 to the mounting point of the first cross plate 23 is a fixed value m, at this time the distance from the mounting point of the first cross plate 23 to the bottom of the abutment plate 27 is m+h 1 At this time, the height of the indicator plate 28 on the scale plate 22 is the original height, and the height difference of the original height minus the instant height is y. The relative depth from the bottom surface of the end cover stop to the bottom of the bearing chamber is the height from the through gauge surface 11 to the bottom of the bearing chamber, which is x. At this time, the distance from the installation point of the first cross plate 23 to the bottom of the abutment plate 27 is h. 2 +x, since the installation point of the first cross plate 23 remains unchanged, y=(m+h 1 )-(h 2 +x), so x=m+h 1 -yh 2 Since the abutment plate 27 and the indicator plate 28 are of equal length, the height of the indicator plate 28 corresponding to the scale plate 22 can correspond to the relative depth from the bottom surface of the end cover stop to the bottom of the bearing chamber. When the height of the indicator plate 28 corresponding to the scale plate 22 when the first cross plate 23 is located at the innermost side of the sliding groove 26 is taken as the origin, a scale line of height x corresponding to different height differences y is drawn on the scale plate 22, and the relative depth from the bottom surface of the end cover stop to the bottom of the bearing chamber can be quickly read without recalculation, and can be quickly obtained when the through gauge surface 11 is detected. One inspection tool can quickly detect two indicators at the same time, saving costs while improving work efficiency.
[0036] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An economical two-in-one generator end cover inspection tool, characterized in that: The invention comprises a circular go and stop gauge (1), which is in the shape of a circular truncated cone with a center hole (13) in the center. A depth gauge (2) for synchronously measuring the depth of an end cover is installed on the inner wall of the center hole (13). The small diameter end of the circular go and stop gauge (1) is a go gauge surface (11), and the large diameter end is a stop gauge surface (12). The diameter length of the go gauge surface (11) is greater than the diameter length of the stop mouth and less than the length of the inner diameter of the end face; the diameter length of the stop gauge surface (12) is not less than the length of the inner diameter of the end face.
2. The economical two-in-one generator end cover inspection tool according to claim 1 is characterized by: The diameter length of the center hole (13) is greater than the length of the inner diameter of the bottom of the bearing chamber.
3. The economical two-in-one generator end cover inspection tool according to claim 1 is characterized by: The depth gauge (2) comprises a symmetrical lifting member rotatably mounted on the inner wall of the center hole (13), a indicating plate (28) being mounted on one end of the symmetrical lifting member close to the stop gauge surface (12), and an abutting plate (27) being mounted on one end of the symmetrical lifting member close to the through gauge surface (11).
4. The economical two-in-one generator end cover inspection tool according to claim 3 is characterized by: The mounting points of the first cross plate (23) and the second cross plate (24) are located at the midpoint of the height of the central hole (13), and the abutment plate (27) and the indication plate (28) are of equal length.
5. The economical two-in-one generator end cover inspection tool according to claim 3 is characterized by: The abutment plate (27) and the indication plate (28) are both parallel to the axis of the central hole (13).
6. The economical two-in-one generator end cover inspection tool according to claim 3 is characterized by: The symmetrical lifting member comprises a first cross plate (23) and a second cross plate (24) which are rotatably mounted on the inner wall of the central hole (13); the first cross plate (23) and the second cross plate (24) are both symmetrical about the center of the mounting point; two ends of the first cross plate (23) and two ends of the second cross plate (24) are respectively flush; two ends of the first cross plate (23) are respectively slidably connected to a group of connecting plates (25); and two ends of the second cross plate (24) are respectively slidably connected to the two groups of connecting plates (25).
7. The economical two-in-one generator end cover inspection tool according to claim 6 is characterized by: The indicating plate (28) is installed on a group of connecting plates (25) close to the stop gauge surface (12), and the abutting plate (27) is installed on a group of connecting plates (25) close to the through gauge surface (11).
8. The economical two-in-one generator end cover inspection tool according to claim 3 is characterized by: It also includes a scale plate (22) installed on the inner wall of the central hole (13), the scale plate (22) is close to one end of the stop gauge surface (12) and the scale plate (22) is parallel to the indicator plate (28), and the length of the scale plate (22) is not less than the length from the top of the indicator plate (28) to the installation point of the symmetrical lifting member.
9. The economical two-in-one generator end cover inspection tool according to claim 7, characterized in that: The scale plate (22) is mounted on the inner wall of the center hole (13) through the mounting block (21), and the distance between the scale plate (22) and the axis of the bottom of the bearing chamber is smaller than the radius of the inner wall of the bottom of the bearing chamber.