A rotor positioning tool

Abstract

The application discloses a rotor positioning tool and belongs to the technical field of rotor assembly. The rotor positioning tool is used for positioning a rotor of an industrial equipment. The rotor has a first end penetrating out of the industrial equipment. The first end comprises a threaded shaft. A mounting base is mounted on the industrial equipment and has a locking surface perpendicular to a first direction. A first communication hole is formed in the locking surface. Two axial positioning nuts are respectively threadedly connected with the threaded shaft and are respectively located on two sides of a hole axis direction of the first communication hole. A radial positioning member is fixedly connected with the mounting base and is provided with a positioning hole with a hole axis parallel to the first direction. The threaded shaft sequentially penetrates through the positioning hole and the first communication hole. The first direction is a central axis direction of the rotor. Therefore, the axial position and the radial position of the rotor are determined simultaneously. A plug gauge can be inserted into a gap between the rotor and a stator of the industrial equipment. Thus, repair and assembly data can be accumulated.

Description

Technical Field

[0001] This application relates to the field of rotor assembly technology, specifically to a rotor positioning fixture. Background Technology

[0002] For industrial equipment with large rotors, such as high-power motors, steam turbines, compressors, and gas turbines, it is necessary to periodically adjust the axial and radial positions of the rotors to position them and ensure that the industrial equipment can operate normally.

[0003] In existing technologies, the axial and radial positions of the rotor are often adjusted based on the maintenance experience of the staff, and the industrial equipment is judged to be able to operate normally by test starting. However, it is impossible to detect the static radial position of the rotor after each adjustment, making it difficult to accumulate repair and assembly data.

[0004] Therefore, there is an urgent need for a rotor positioning fixture to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a rotor positioning fixture capable of simultaneously positioning the axial and radial positions of the rotor, and capable of accumulating repair and assembly data.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] A rotor positioning fixture is provided for positioning a rotor of industrial equipment, the rotor having a first end extending out of the industrial equipment, the first end including a threaded shaft. The rotor positioning fixture includes:

[0008] Mounting base, the mounting base is installed on the industrial equipment and has a locking surface perpendicular to the first direction, the locking surface having a first connecting hole;

[0009] Axial positioning nuts, the two axial positioning nuts are respectively threaded into the threaded shaft and are respectively located on both sides of the hole axis direction of the first communicating hole;

[0010] A radial positioning component, which is fixedly connected to the mounting base and has a positioning hole with its axis parallel to the first direction;

[0011] The threaded shaft passes through the positioning hole and the first connecting hole in sequence, and the first direction is the direction of the central axis of the rotor.

[0012] In some embodiments, the mounting base has a first connecting hole, and the radial positioning member has a first fixing hole. A first locking member passes through the first connecting hole and engages with the first fixing hole to fix the radial positioning member to the mounting base.

[0013] In some embodiments, at least two of the first connecting holes are spaced apart on the mounting base, and the number of the first fixing holes, the first connecting holes and the first locking members are the same and correspond one-to-one.

[0014] In some embodiments, at least two of the radial positioning elements are spaced apart along the first direction.

[0015] In some embodiments, the rotor positioning fixture further includes a bushing, which is sleeved on the periphery of the first end. The bushing has a second through hole through which the threaded shaft passes, and the peripheral sidewall of the bushing is spaced apart from the inner sidewall of the positioning hole.

[0016] In some embodiments, a square hole is provided on the peripheral sidewall of the axial positioning nut.

[0017] In some embodiments, the rotor positioning fixture further includes an anti-rotation component, which is connected to the mounting base and has a polygonal hole. The first end also includes a polygonal shaft coaxially arranged with the threaded shaft. The polygonal shaft is located on the side of the threaded shaft away from the industrial equipment. When the mounting base is installed on the industrial equipment, the polygonal shaft and the polygonal hole are inserted into each other.

[0018] In some embodiments, the rotor positioning fixture further includes a locking bracket, the locking bracket including a sliding member and a mounting shaft, one end of the mounting shaft being fixedly connected to the mounting base, the sliding member being slidably connected to the mounting shaft along the first direction, and the anti-rotation member being fixedly connected to the sliding member and capable of moving along the first direction to abut against the threaded shaft.

[0019] In some embodiments, the mounting shaft has an external thread on the peripheral sidewall of the end opposite to the mounting base, and the locking bracket further includes a locking nut that engages with the external thread. The sliding member has a third connecting hole through which the mounting shaft passes, and the locking nut can be screwed to move the anti-rotation member along the first direction to abut against the threaded shaft.

[0020] In some embodiments, the industrial equipment has a through hole for the rotor to pass through, and the rotor positioning fixture further includes a base, the mounting base is fixedly connected to the base, and the base has a positioning flange that can be inserted and engaged with the through hole.

[0021] The beneficial effects of this application are as follows:

[0022] The rotor positioning fixture provided in this embodiment is mounted on industrial equipment via a mounting base and has a locking surface perpendicular to the central axis of the rotor. A first connecting hole is provided on the locking surface. Two axial positioning nuts are respectively threaded with a threaded shaft and are located on both sides of the axis of the first connecting hole. The threaded shaft passes through the first connecting hole. After adjusting the axial position of the rotor, the two axial positioning nuts can be screwed to lock the rotor and position the rotor in the axial direction. By making the rotor pass through the positioning hole of the radial positioning component, it is determined that the radial position of the rotor is within the tolerance range. Thus, the axial position and radial position of the rotor are determined simultaneously, thereby ensuring that the industrial equipment can operate normally. At this time, the operator can insert a plug gauge into the gap between the rotor and the stator of the industrial equipment, thereby accumulating repair and assembly data. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0024] Figure 1 This is a partial cross-sectional schematic diagram of the rotor positioning fixture provided in the embodiments of this application.

[0025] Figure label:

[0026] 100. First end; 101. Threaded shaft; 102. Polygonal shaft;

[0027] 1. Mounting base; 11. Locking surface; 12. First communicating hole; 13. First connecting hole;

[0028] 2. Axial positioning nut;

[0029] 3. Radial positioning element; 31. Positioning hole; 32. First fixing hole;

[0030] 4. Bushing; 41. Second connecting hole;

[0031] 5. Anti-rotation component; 51. Polygonal hole;

[0032] 6. Locking bracket; 61. Sliding component; 611. Third connecting hole; 62. Mounting shaft; 621. External thread; 63. Locking nut;

[0033] 7. Base; 71. Positioning flange. Detailed Implementation

[0034] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0035] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0036] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0037] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0038] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0039] Figure 1 A partial cross-sectional view of the rotor positioning fixture provided in this embodiment is shown. Figure 1 As shown, the rotor positioning fixture provided in this embodiment is used to position the rotor of an industrial device. The rotor has a first end 100 extending out of the industrial device, and the first end 100 includes a threaded shaft 101. The rotor is rotatably connected to the industrial device. The rotor positioning fixture includes a mounting base 1, axial positioning nuts 2, and radial positioning components 3. The mounting base 1 is mounted on the industrial device and has a locking surface 11 perpendicular to the first direction. A first connecting hole 12 is provided on the locking surface 11. Two axial positioning nuts 2 are threadedly engaged with the threaded shaft 101 and are located on both sides of the hole axis direction of the first connecting hole 12. The radial positioning component 3 is fixedly connected to the mounting base 1 and has a positioning hole 31 with the hole axis parallel to the first direction. The threaded shaft 101 passes through the positioning hole 31 and the first connecting hole 12 in sequence. The first direction is the direction of the rotor's central axis.

[0040] It is understandable that there is a tolerance zone for the radial position accuracy of the rotor. The radial positioning component 3 is fixedly connected to the mounting base 1 and has been positioned. It is ensured that as long as the rotor passes through the positioning hole 31 of the radial positioning component 3, the radial position of the rotor's central axis is within the tolerance range. It can be considered that the radial position of the rotor has been positioned. After the axial position of the rotor is positioned, the industrial equipment with the rotor can operate normally. At this time, a plug gauge can be inserted between the rotor and the stator of the industrial equipment to accumulate repair and assembly data. As for the setting of the tolerance zone of the rotor's radial position, it can be reasonably set by those skilled in the art according to actual needs, and will not be elaborated here.

[0041] The rotor positioning fixture provided in this embodiment is mounted on industrial equipment via a mounting base 1 and has a locking surface 11 perpendicular to the central axis of the rotor. A first connecting hole 12 is provided on the locking surface 11. Two axial positioning nuts 2 are threadedly engaged with a threaded shaft 101 and are located on both sides of the hole axis of the first connecting hole 12. The threaded shaft 101 passes through the first connecting hole 12. After adjusting the axial position of the rotor, the two axial positioning nuts 2 can be screwed to lock the rotor and position the rotor in the axial direction. By allowing the rotor to pass through the positioning hole 31 of the radial positioning member 3, it is determined that the radial position of the rotor is within the tolerance range. Thus, the axial position and radial position of the rotor are determined simultaneously, thereby ensuring that the industrial equipment can operate normally. At this time, the operator can insert a plug gauge into the gap between the rotor and the stator of the industrial equipment, thereby accumulating repair and assembly data.

[0042] Continue as Figure 1 As shown, a square hole is provided on the peripheral side wall of the axial positioning nut 2, so that a wrench can be inserted into the square hole to rotate the axial positioning nut 2, unlock the rotor, and thus facilitate the operation of the axial positioning nut 2 to adjust the axial position of the rotor.

[0043] Industrial equipment of different specifications has rotors of different specifications, requiring radial positioning parts 3 with different inner diameter positioning holes 31 to position the rotor radially. To make the rotor positioning fixture applicable to rotors of different specifications, the process continues as follows... Figure 1 As shown, the mounting base 1 has a first connecting hole 13, and the radial positioning component 3 has a first fixing hole 32. A first locking member passes through the first connecting hole 13 and engages with the first fixing hole 32 to fix the radial positioning component 3 to the mounting base 1, thus achieving a detachable connection between the radial positioning component 3 and the mounting base 1. When it is necessary to determine the radial position of rotors of different specifications, the radial positioning component 3 can be disassembled and replaced with positioning holes 31 of different inner diameters, improving the versatility of the rotor positioning fixture by allowing for the replacement of the radial positioning component 3. Specifically, the first connecting hole 13 is a through hole, the first fixing hole 32 is a threaded hole, and the first locking member is a bolt. The bolt passes through the through hole and is threadedly connected to the threaded hole, thereby fixing the radial positioning component 3 to the mounting base 1.

[0044] Preferably, at least two first connecting holes 13 are spaced apart on the mounting base 1, and the number of first fixing holes 32, first connecting holes 13 and first locking members are the same and correspond one-to-one, thereby improving the stability of the connection between the radial positioning member 3 and the mounting base 1.

[0045] In some embodiments, at least two radial positioning elements 3 are spaced apart along a first direction, thereby simultaneously positioning the radial position of the rotor at multiple locations along the rotor's central axis. This prevents the rotor's central axis from tilting and allowing it to pass through the positioning hole 31, but the radial position does not meet the requirements, causing the industrial equipment to malfunction. It should be noted that the number of radial positioning elements 3 is not limited here; it can be two, three, four, or even more. Those skilled in the art can reasonably set it according to actual needs, as long as it can prevent the rotor's central axis from deviating.

[0046] Continue as Figure 1 As shown, the rotor positioning fixture also includes a bushing 4, which is sleeved on the periphery of the first end 100. The bushing 4 has a second connecting hole 41 through which the threaded shaft 101 passes. The peripheral sidewall of the bushing 4 is spaced apart from the inner sidewall of the positioning hole 31, thereby using the bushing 4 to protect the first end 100 of the rotor and prevent the first end 100 of the rotor from rubbing against the axial positioning nut 2 of the rotor positioning fixture and damaging the rotor when adjusting the axial position of the rotor.

[0047] Continue as Figure 1As shown, the rotor positioning fixture also includes an anti-rotation component 5, which is connected to the mounting base 1 and has a polygonal hole 51. The first end 100 also includes a polygonal shaft 102 coaxially arranged with the threaded shaft 101. The polygonal shaft 102 is located on the side of the threaded shaft 101 away from the industrial equipment. When the mounting base 1 is installed on the industrial equipment, the polygonal shaft 102 is inserted into the polygonal hole 51, thereby preventing the rotor from rotating when adjusting the axial position of the rotor. This allows one of the two axial positioning nuts 2 to be loosened, and the other axial positioning nut 2 to be tightened to adjust the axial position of the rotor. It can be understood that the polygonal hole 51 can be a triangular hole, a square hole, a pentagonal hole, or an internal hexagonal hole, as long as the polygonal hole 51 can prevent the polygonal shaft 102 from rotating when it is inserted into the polygonal hole 51.

[0048] Continue as Figure 1 As shown, the rotor positioning fixture also includes a locking bracket 6, which includes a sliding member 61 and a mounting shaft 62. One end of the mounting shaft 62 is fixedly connected to the mounting base 1. The sliding member 61 is slidably connected to the mounting shaft 62 along a first direction. The anti-rotation member 5 is fixedly connected to the sliding member 61 and can move along the first direction to abut against the threaded shaft 101. Thus, when adjusting the axial position of the rotor, the position of the anti-rotation member 5 in the rotor axial direction can be adjusted, thereby ensuring that when the rotor positioning fixture positions rotors of different lengths, the polygonal shaft 102 can be reliably inserted into the polygonal hole 51 to prevent the rotor from rotating.

[0049] Preferably, the mounting shaft 62 has an external thread 621 on the peripheral wall of the end opposite to the mounting base 1. The locking bracket 6 also includes a locking nut 63 that is threadedly engaged with the external thread 621. The sliding member 61 has a third connecting hole 611 through which the mounting shaft 62 passes. The locking nut 63 can be screwed to move the anti-rotation member 5 along the first direction and abut against the threaded shaft 101. Thus, when adjusting the axial position of the rotor, the locking nut 63 can be screwed to lock the locking nut 63, thereby fixing the relative position of the anti-rotation member 5 and the rotor. This ensures the reliability of the insertion and engagement between the polygonal shaft 102 and the polygonal hole 51, and prevents the anti-rotation member 5 from being forced to move along the first direction due to rotor rotation, causing the polygonal shaft 102 to disengage from the polygonal hole 51 and preventing the anti-rotation member 5 from preventing the rotor from rotating.

[0050] Continue as Figure 1 As shown, the mounting equipment has a through hole for the rotor to pass through. The rotor positioning fixture also includes a base 7. The mounting base 1 is fixedly connected to the base 7. The base 7 has a positioning flange 71 that can be inserted and engaged with the through hole. Thus, when the rotor needs to be positioned using the rotor positioning fixture, the base 7 can be quickly installed on the industrial equipment while the rotor passes through the positioning hole 31, thereby quickly adjusting the radial position of the rotor.

[0051] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0052] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A rotor positioning fixture for positioning a rotor of industrial equipment, the rotor having a first end (100) extending out of the industrial equipment, the first end (100) including a threaded shaft (101), characterized in that, The rotor positioning fixture includes: Mounting base (1), the mounting base (1) is mounted on the industrial equipment and has a locking surface (11) perpendicular to the first direction, and a first connecting hole (12) is provided on the locking surface (11); Axial positioning nuts (2), the two axial positioning nuts (2) are respectively threaded into the threaded shaft (101) and are respectively located on both sides of the hole axis direction of the first connecting hole (12); Radial positioning component (3), the radial positioning component (3) is fixedly connected to the mounting base (1) and has a positioning hole (31) with the hole axis parallel to the first direction; The threaded shaft (101) passes through the positioning hole (31) and the first connecting hole (12) in sequence, and the first direction is the direction of the central axis of the rotor.

2. The rotor positioning fixture according to claim 1, characterized in that, The mounting base (1) has a first connecting hole (13), and the radial positioning member (3) has a first fixing hole (32). The first locking member passes through the first connecting hole (13) and engages with the first fixing hole (32) to fix the radial positioning member (3) to the mounting base (1).

3. The rotor positioning fixture according to claim 2, characterized in that, At least two of the first connecting holes (13) are spaced apart on the mounting base (1), and the number of the first fixing holes (32), the first connecting holes (13) and the first locking members are the same and correspond one to one.

4. The rotor positioning fixture according to claim 2, characterized in that, At least two of the radial positioning elements (3) are spaced apart along the first direction.

5. The rotor positioning fixture according to claim 1, characterized in that, The rotor positioning fixture also includes a bushing (4), which is sleeved on the periphery of the first end (100). The bushing (4) has a second connecting hole (41) through which the threaded shaft (101) passes. The peripheral sidewall of the bushing (4) is spaced apart from the inner sidewall of the positioning hole (31).

6. The rotor positioning fixture according to claim 1, characterized in that, A square hole is provided on the peripheral side wall of the axial positioning nut (2).

7. The rotor positioning fixture according to claim 1, characterized in that, The rotor positioning fixture also includes an anti-rotation component (5), which is connected to the mounting base (1) and has a polygonal hole (51). The first end (100) also includes a polygonal shaft (102) coaxially arranged with the threaded shaft (101). The polygonal shaft (102) is located on the side of the threaded shaft (101) away from the industrial equipment. When the mounting base (1) is installed on the industrial equipment, the polygonal shaft (102) is inserted into the polygonal hole (51).

8. The rotor positioning fixture according to claim 7, characterized in that, The rotor positioning fixture also includes a locking bracket (6), which includes a sliding member (61) and a mounting shaft (62). One end of the mounting shaft (62) is fixedly connected to the mounting base (1). The sliding member (61) is slidably connected to the mounting shaft (62) along the first direction. The anti-rotation member (5) is fixedly connected to the sliding member (61) and can move along the first direction to abut against the threaded shaft (101).

9. The rotor positioning fixture according to claim 8, characterized in that, The mounting shaft (62) has an external thread (621) on the peripheral side wall of the end opposite to the mounting base (1). The locking bracket (6) also includes a locking nut (63) that is threadedly engaged with the external thread (621). The sliding member (61) has a third connecting hole (611) through which the mounting shaft (62) passes. The locking nut (63) can be screwed to make the anti-rotation member (5) move along the first direction and abut against the threaded shaft (101).

10. The rotor positioning fixture according to any one of claims 1-9, characterized in that, The industrial equipment has a through hole for the rotor to pass through. The rotor positioning fixture also includes a base (7). The mounting seat (1) is fixedly connected to the base (7). The base (7) has a positioning flange (71) that can be inserted into the through hole.

Images