Transportation protection method of floating rotor and rotor protector

Abstract

The invention relates to the technical field of rotor transportation, in particular to a transportation protection method of a floating rotor and a rotor protector. The protection method comprises the following steps: 1) determining a rotor single-side floating gap: the rotor single-side floating gap is a support distance and is a minimum gap between the outer diameter of a rotor and the inner diameter of a stator when the rotor and the stator are concentric; 2) measuring the contact part support size of the rotor end part: if the contact part is an optical axis, measuring the radial support size and the axial contact depth size of the optical axis; if the contact part is provided with a thread, thread related parameters such as a thread form, a rotation direction, a thread pitch lead and the like need to be confirmed; and 3) determining an end support form: determining whether the axial direction of the rotor needs limiting protection or not. By arranging the rotor protector and controlling the machining precision of the rotor protector, it is ensured that the rotor is installed at the designated supporting position, the position of the rotor does not need to be adjusted by measuring the real-time position of the rotor, and the positioning precision of the rotor can be determined only by checking the machining precision of the supporting disc.

Description

Technical Field

[0001] The invention relates to the technical field of rotor transportation, and in particular to a transportation protection method for a floating rotor and a rotor protector. Background Art

[0002] With the development of science and technology, electromagnetic bearings are widely used in mechanical processing, turbomachinery, aerospace, vacuum technology, rotor dynamics characteristics identification and testing and other fields, and are recognized as a very promising new type of bearing. Electromagnetic bearings are often used with auxiliary bearings. When the rotor body is not suspended, the auxiliary bearings are often used to support the rotor body. After the manufacturer assembled the complete machine and shipped it to the destination, it was found that the auxiliary bearings were damaged to varying degrees during transportation.

[0003] The floating clearance of electromagnetic bearings is often between a few millimeters and a few millimeters. Large equipment containing electromagnetic bearings is powered off during transportation and supported by auxiliary bearings. However, during long-distance transportation, the road is bumpy and the gravity impact of the rotor is borne by the auxiliary bearings. The auxiliary bearings are hard supports and cannot effectively absorb the inertial impact of the rotor. When they arrive at the destination, the auxiliary bearings are damaged to varying degrees. At the same time, manufacturers have designed a special tooling that matches the rotor of large equipment. There are many types of such tooling, and the rotor is often fixed by clamping, which is inefficient and bulky, adding a burden to the transportation process. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problems in the prior art that there are many types of tooling, the rotor is often fixed in an inefficient manner by clamping, and the large size adds a burden to the transportation process, thereby providing a floating rotor transportation protection method and a rotor protector.

[0005] In order to solve the above technical problems, the present invention provides a method for transporting and protecting a floating rotor, comprising the following steps: 1) determining the single-sided floating clearance of the rotor: the single-sided floating clearance of the rotor is the support distance, which is the minimum clearance between the outer diameter of the rotor and the inner diameter of the stator when the rotor and the stator are concentric; 2) measuring the support size of the contact portion at the end of the rotor: if the contact portion is an optical axis, measure the radial support size and axial contact depth size of the optical axis; if there is a thread on the contact portion, it is necessary to confirm the thread-related parameters such as the tooth type, rotation direction, pitch lead, etc.; 3) determining the end support form: determining whether the axial direction of the rotor needs limit protection and whether the outer ring of the electromagnetic bearing needs to be tightened; 4) designing a rotor protector: specifically including a support plate, a locking cone screw, and a threaded support ring; if the contact portion is an optical axis, no threaded support ring is included; 5) installing the rotor protector.

[0006] Furthermore, the single-sided clearance between the rotor and the radial electromagnetic bearing is 1.5 mm, the outer diameter of the contact part between the rotor and the auxiliary bearing is 49 mm, and the inner diameter of the auxiliary bearing is 50 mm, so the single-sided floating clearance of the rotor should be 0.5 mm.

[0007] Furthermore, one side of the rotor is an external thread of M40 with an axial dimension of 6 mm; one side is an optical axis of 49 mm with an axial dimension of 8 mm.

[0008] Furthermore, in step 4), when designing the support plate, it is necessary to ensure that the evenly distributed threaded holes of the support plate match the threaded holes of the end cover of the machine equipped with the electromagnetic bearing; if axial limit protection of the rotor is required, the support plate is a semi-closed structure, and the semi-closed structure must be of sufficient depth so that the end face of the rotor does not contact the inner end face of the support plate.

[0009] Furthermore, in step 4), when designing the threaded support ring, the matching depth between the internal thread of the threaded support ring and the threaded outer ring of the rotor shaft end needs to be considered.

[0010] Furthermore, in step 4), when designing the locking cone screw, a space for an elastic washer should be reserved in the length, and the cone surface of the locking cone screw matches the threaded holes evenly distributed on the support plate, with a taper of 1:16.

[0011] Further, in step 5), if the contact part is an optical axis, it is fitted on the optical axis through the contact fit of the center hole of the support plate, and then the locking cone screw is pre-screwed in the threaded hole of the outermost end cover, and radial support is performed by continuously tightening the opposite locking cone screw; if the contact part is a threaded shaft, it is necessary to rotate the threaded support ring to a specified position, and the locking cone screw is pre-screwed in the threaded hole of the outermost end cover through the fit fit of the inner surface of the support plate and the outer surface of the threaded support ring, and then radial support protection is performed by continuously tightening the opposite locking cone screws.

[0012] The present invention also provides a rotor protector used in the transportation protection method of the floating rotor, comprising: a support plate, a plurality of threaded holes are provided on the outer edge of the support plate, the support plate is sleeved on the rotor, and has an overfit or clearance fit with the rotor; a locking cone screw, having a plurality of screws, passing through the threaded holes and connected to the rotor.

[0013] Furthermore, the cylindrical portion of the support plate is provided with a central hole and is connected to the rotor via a buffer rubber head locking screw.

[0014] Furthermore, it also includes a threaded support ring, which is sleeved in the support disk and is threadedly connected to the rotor.

[0015] The technical solution of the present invention has the following advantages:

[0016] The transportation protection method of the floating rotor provided by the present invention comprises the following steps: 1) determining the single-sided floating clearance of the rotor: the single-sided floating clearance of the rotor is the support distance, which is the minimum clearance between the outer diameter of the rotor and the inner diameter of the stator when the rotor and the stator are concentric; 2) measuring the support dimension of the contact portion at the end of the rotor: if the contact portion is an optical axis, measuring the radial support dimension and axial contact depth dimension of the optical axis; if there is a thread on the contact portion, it is necessary to confirm the thread-related parameters such as the tooth type, rotation direction, pitch lead, etc.; 3) determining the end support form: determining whether the axial direction of the rotor needs limit protection and whether the outer ring of the electromagnetic bearing needs to be compressed; 4) designing a rotor protector: specifically including a support plate, a locking cone screw, and a threaded support ring; if the contact portion is an optical axis, no threaded support ring is included; 5) installing the rotor protector.

[0017] The floating rotor transportation protection method ensures that the rotor is installed at a specified support position by setting a rotor protector and controlling the processing accuracy of the rotor protector. There is no need to measure the real-time position of the rotor to adjust the rotor position, and only the processing accuracy of the support plate needs to be checked to determine the rotor positioning accuracy. The support plate, locking cone screw, and threaded support ring have the characteristics of simple structure, easy processing, precise positioning, reliable support, etc.

[0018] For rotors with larger mass, the rotor support and fixation can be achieved only by manpower. During transportation, the support plate of the rotor protector can provide compression force for the original machine. For floating rotors equipped with electromagnetic bearings, transportation protection is provided to prevent the auxiliary bearings from being damaged by impacts from all directions during transportation.

[0019] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the disclosure, nor is it intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A flow chart of the method for transporting and protecting a floating rotor provided by the present invention;

[0022] Figure 2 A schematic diagram of the structure of the rotor protector provided by the present invention;

[0023] Figure 3When the rotor provided by the present invention is a bare axis, a radial support assembly diagram without axial positioning is required;

[0024] Figure 4 The axial positioning assembly diagram of the rotor end surface provided by the present invention is a smooth surface;

[0025] Figure 5 The present invention provides an axial positioning assembly diagram of a rotor end face having a central threaded hole.

[0026] Description of reference numerals:

[0027] 1. Rotor; 2. Support plate; 3. Threaded support ring; 4. Locking cone screw; 5. Elastic washer; 6. Threaded hole; 7. Center hole; 8. Cylindrical part. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] In the description of the present disclosure, 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" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0031] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and 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" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0033] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0034] See also Figures 1 to 5 As shown, the present invention provides a method for transporting and protecting a floating rotor, comprising the following steps: 1) determining the unilateral floating clearance of the rotor 1: the unilateral floating clearance of the rotor 1 is the support distance, which is the minimum clearance between the outer diameter of the rotor 1 and the inner diameter of the stator when the rotor 1 is concentric with the stator; 2) measuring the support dimension of the contact portion at the end of the rotor 1: if the contact portion is an optical axis, measure the radial support dimension and axial contact depth dimension of the optical axis; if there is a thread on the contact portion, it is necessary to confirm thread-related parameters such as the tooth type, rotation direction, and pitch lead; 3) determining the end support form: determining whether the axial direction of the rotor 1 requires limit protection and whether the outer ring of the electromagnetic bearing needs to be compressed; 4) designing a rotor protector: specifically comprising a support plate 2, a locking cone screw 4, and a threaded support ring 3; if the contact portion is an optical axis, the threaded support ring 3 is not included; 5) installing the rotor protector.

[0035] The floating rotor transportation protection method ensures that the rotor 1 is installed at the specified support position by setting a rotor protector and controlling the processing accuracy of the rotor protector. There is no need to measure the real-time position of the rotor 1 to adjust the position of the rotor 1, and only the processing accuracy of the support plate 2 needs to be checked to determine the positioning accuracy of the rotor 1. The support plate 2, the locking cone screw 4, and the threaded support ring 3 have the characteristics of simple structure, easy processing, accurate positioning, reliable support, etc.

[0036] For a rotor 1 with a large mass, the rotor 1 can be supported and fixed only by manpower. During transportation, the support plate 2 of the rotor protector can provide a clamping force for the original machine. Transportation protection is provided for the floating rotor 1 equipped with an electromagnetic bearing to prevent the auxiliary bearing from being damaged by impacts from all directions during transportation.

[0037] In some optional embodiments, the single-sided clearance between the rotor 1 and the radial electromagnetic bearing is 1.5 mm, the outer diameter of the contact part between the rotor 1 and the auxiliary bearing is 49 mm, and the inner diameter of the auxiliary bearing is 50 mm, then the single-sided floating clearance of the rotor 1 should be 0.5 mm.

[0038] Specifically, the single-side floating clearance of the rotor 1 should be (50-49) / 2=0.5 mm.

[0039] It should be noted that the electromagnetic bearings participate in the rotary motion of the rotor 1 part with radial clearance, and the rotor 1 unilateral floating clearance is not the unilateral clearance between the radial electromagnetic bearing rotor 1 part and the stator part. Because the machine equipped with electromagnetic bearings is provided with auxiliary bearings to provide support for the rotor 1 during non-operation, the rotor 1 unilateral floating clearance is the clearance between the auxiliary bearing and the rotor 1 part.

[0040] One side of the rotor 1 is an external thread of M40 with an axial dimension of 6 mm; the other side is an optical axis of 49 mm with an axial dimension of 8 mm.

[0041] In step 3), if the rotor 1 needs to be protected from axial limit, the support plate 2 is a semi-enclosed structure. If the rotor 1 does not need to be protected from axial limit, the protective tool support plate 2 can be designed as a through hole. If the auxiliary bearing outer ring needs to be compressed, the support plate 2 needs to be designed with corresponding size and structure to match it.

[0042] In some optional embodiments, in step 4), when designing the support disk 2, it is necessary to pay attention to that the threaded holes 6 evenly distributed on the support disk 2 match the threaded holes 6 of the end cover of the machine equipped with the electromagnetic bearing; if axial limit protection of the rotor 1 is required, the support disk 2 is a semi-enclosed structure, and the semi-enclosed structure must ensure sufficient depth, and the end face of the rotor 1 does not contact the inner end face of the support disk 2. According to whether there is a threaded hole 6 on the axial end face of the rotor 1, it can be determined whether the threaded hole 6 or the through hole in the center of the support disk 2 provides axial locking force limit protection.

[0043] When processing the support plate 2, the uniformly distributed threaded holes 6 are processed based on the inner surface of the cylindrical portion 8 of the support plate 2. After the processing is completed, the positioning accuracy of the rotor 1 can be determined by simply checking the processing accuracy of the support plate 2. During the installation process, there is no need to measure the real-time position of the rotor 1 to adjust the position of the rotor 1.

[0044] The contact side of the support plate 2 with the machine should meet relevant dimensional requirements, such as: pressing the inner and outer rings of the bearing of the machine, providing axial positioning for the rotor 1, etc.

[0045] The threaded hole 6 has a certain taper, which is convenient for cooperation with the locking cone screw 4.

[0046] At the same time, in step 4), when designing the threaded support ring 3, it is necessary to consider the matching depth between the internal thread of the threaded support ring 3 and the threaded outer ring of the shaft end of the rotor 1, and the gap-free matching between the threaded outer ring of the shaft end of the rotor 1 and the support plate 2.

[0047] The axial dimension of the outer surface of the threaded support ring 3 can be appropriately extended to improve the support reliability.

[0048] In step 4), when designing the locking cone screw 4, a space for the elastic washer 5 should be left on the length, and the cone surface of the locking cone screw 4 matches the threaded holes 6 evenly distributed on the support plate 2, with a taper of 1:16. The difference between the diameters of the cone holes should be 1, which is twice the floating clearance calculated by determining the floating clearance of the rotor 1.

[0049] For example, if the unilateral floating clearance of the rotor 1 is 0.5 mm, the difference between the diameters of the large and small circles of the tapered hole is 1 mm, and a 1:16 taper is preferred, then the depth of the tapered hole is 16 mm. The outer tapered surface of the locking tapered screw 4 and the threaded hole 6 of the support plate 2 are both determined.

[0050] Measuring the end support dimensions of the rotor 1 One side of the rotor 1 is an M40 external thread with an axial dimension of 6mm; one side is a 49mm optical axis with an axial dimension of 10mm. The threaded side uses an M40 threaded support ring 3 to match the floating rotor 1, and the tapered hole of the support plate 2 has the same position as the threaded hole 6 of the end cover of the machine equipped with the electromagnetic bearing.

[0051] At the same time, the locking cone screw 4 is equipped with a spring washer to prevent loosening during transportation.

[0052] In some optional embodiments, in step 5), if the contact portion is an optical axis, the support plate 2 is fitted onto the optical axis through the contact fit of the center hole 7, and then the locking cone screw 4 is pre-screwed into the threaded hole 6 of the outermost end cover, and radial support is performed by continuously tightening the opposite locking cone screw 4; if the contact portion is a threaded shaft, the threaded support ring 3 needs to be rotated to a specified position, and the locking cone screw 4 is pre-screwed into the threaded hole 6 of the outermost end cover through the inner surface of the support plate 2 and the outer surface of the threaded support ring 3, and then radial support protection is performed by continuously tightening the opposite locking cone screw 4.

[0053] Among them, the radial support protection of the rotor protector requires the removal of the outermost end cover of the machine equipped with the electromagnetic bearing, and the fixed installation is carried out through the threaded hole 6 of the outermost end cover. During the installation process, the installation environment should be kept clean and dust-free.

[0054] The supporting force for installing the rotor protector mainly comes from labor-saving structures such as threaded connections and inclined surfaces. For a rotor 1 with a large mass, the rotor 1 can be supported and fixed only by manpower.

[0055] By continuously screwing the locking cone screw 4 into the threaded hole 6, the cone surface of the locking cone screw 4 continuously extends into the threaded hole 6, and the self-centering and good self-locking properties of the cone of the locking cone screw 4 are utilized to support the floating rotor 1 to reach the specified position.

[0056] The axial limit protection of the rotor protector requires axial positioning of the floating rotor 1. After the locking cone screw 4 is locked, the screw is tightened through the center hole 7 of the semi-enclosed support plate 2.

[0057] If the center of the axial end face of the rotor 1 contains a threaded hole 6, the center hole 7 of the semi-enclosed support plate 2 is a through hole, and when the screws are tightened, the floating rotor 1 is subjected to tensile stress at both ends along the axial direction.

[0058] If the axial end surface of the floating rotor 1 is smooth, the central hole 7 of the semi-enclosed support plate 2 is a threaded hole 6, which is locked by a buffer rubber head locking screw. At this time, the rotor 1 is subjected to compressive stress at both ends along the axial direction.

[0059] The present invention also provides a rotor protector used in the transportation protection method of the floating rotor, comprising: a support plate 2, wherein a plurality of threaded holes 6 are provided on the outer edge of the support plate 2, wherein the support plate 2 is sleeved on the rotor 1 and has an overfit or clearance fit with the rotor 1; a locking cone screw 4, which has a plurality of threaded holes 6 and passes through the threaded holes 6 and is connected to the rotor 1.

[0060] The support plate 2 is sleeved on the rotor 1 to achieve connection between the support plate 2 and the rotor 1. The connection method can be a transition connection. At the same time, a plurality of threaded holes 6 are arranged on the outer edge of the support plate 2, corresponding to the threaded holes 6 on the rotor 1, and then the locking cone screws 4 are connected to the threaded holes 6, thereby achieving connection between the support plate 2 and the rotor 1.

[0061] By setting the support plate 2 and the locking cone screw 4 and controlling the processing accuracy of the support plate 2 and the locking cone screw 4, it is ensured that the rotor 1 is installed at the specified support position. There is no need to measure the real-time position of the rotor 1 to adjust the position of the rotor 1. It is only necessary to check the processing accuracy of the support plate 2 to determine the positioning accuracy of the rotor 1.

[0062] When the rotor 1 is an optical axis, a center hole 7 may be provided on the cylindrical portion 8 of the support plate 2 and connected to the center threaded hole 6 on the rotor 1 via a buffer rubber head locking screw, thereby achieving connection between the support plate 2 and the rotor 1 .

[0063] When the end face of the rotor 1 is smooth, the axial positioning of the rotor 1 needs to be performed after the radial support is completed. The buffer rubber head locking screw axially locks the shaft with the smooth end face. The buffer rubber head locking screw contacts the end face of the rotor 1. At this time, both ends of the rotor 1 are subjected to compressive stress.

[0064] The rotor 1 transport protector further comprises a threaded support ring 3 , wherein the threaded support ring 3 is sleeved in the support plate 2 and the threaded support ring 3 is threadedly connected to the rotor 1 .

[0065] When the rotor 1 has threads at its contact portion, the support disk 2 is gap-connected with the rotor 1 , and a threaded support ring 3 is installed in the gap. The threaded support ring 3 is sleeved in the support disk 2 , and the threaded support ring 3 is threadedly connected with the rotor 1 , thereby realizing the connection between the support disk 2 and the rotor 1 .

[0066] When the rotor protector is installed, the position of the rotor 1 is the position of the inner surface of the cylindrical part 8 of the support plate 2, and the position error of the evenly distributed threaded holes 6 relative to the inner surface of the cylindrical part of the support plate 2 is the installation position error of the rotor 1. In this way, when installing the rotor protector, there is no need to measure the real-time position of the rotor 1 to adjust the position of the rotor 1. It is only necessary to check the processing accuracy of the support plate 2 and determine the positioning accuracy of the rotor 1.

[0067] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A method for transporting and protecting a floating rotor, characterized in that: The following steps are involved: 1) Determine the unilateral floating clearance of the rotor (1): the unilateral floating clearance of the rotor (1) is the support distance, which is the minimum clearance between the outer diameter of the rotor (1) and the inner diameter of the stator when the rotor (1) and the stator are concentric; 2) Measure the support dimensions of the contact portion at the end of the rotor (1): if the contact portion is an optical axis, measure the radial support dimensions and axial contact depth dimensions of the optical axis; if the contact portion has threads, confirm thread-related parameters such as thread type, rotation direction, and pitch lead; 3) Determine the end support form: determine whether the axial direction of the rotor (1) requires limit protection and whether the outer ring of the electromagnetic bearing needs to be tightened; 4) Designing a rotor protector: specifically including a support plate (2), a locking cone screw (4), and a threaded support ring (3); if the contact portion is an optical axis, the threaded support ring (3) is not included; 5) Install the rotor protector.

2. The method for transporting and protecting a floating rotor according to claim 1, characterized in that: The single-sided clearance between the rotor (1) and the radial electromagnetic bearing is 1.5 mm, the outer diameter of the contact portion between the rotor (1) and the auxiliary bearing is 49 mm, and the inner diameter of the auxiliary bearing is 50 mm, so the single-sided floating clearance of the rotor (1) should be 0.5 mm.

3. The method for transporting and protecting a floating rotor according to claim 2, characterized in that: One side of the rotor (1) is an M40 external thread with an axial dimension of 6 mm; the other side is a 49 mm optical axis with an axial dimension of 8 mm.

4. The method for transporting and protecting a floating rotor according to claim 3, characterized in that: In step 4), when designing the support plate (2), it is necessary to ensure that the threaded holes (6) evenly distributed on the support plate (2) match the threaded holes (6) on the end cover of the machine equipped with the electromagnetic bearing; if axial limit protection for the rotor (1) is required, the support plate (2) is a semi-enclosed structure, and the semi-enclosed structure must have sufficient depth so that the end face of the rotor (1) does not contact the inner end face of the support plate (2).

5. The method for transporting and protecting a floating rotor according to claim 3, characterized in that: In step 4), when designing the threaded support ring (3), the matching depth between the internal thread of the threaded support ring (3) and the outer thread of the shaft end of the rotor (1) needs to be considered.

6. The method for transporting and protecting a floating rotor according to claim 3, characterized in that: In step 4), when designing the locking cone screw (4), a space for the elastic washer (5) should be left in the length, and the cone surface of the locking cone screw (4) matches the threaded holes (6) evenly distributed on the support plate (2), with a taper of 1:

16.

7. The method for transporting and protecting a floating rotor according to claim 1, characterized in that: In step 5), if the contact part is an optical axis, the support plate (2) is fitted onto the optical axis through the central hole (7) of the support plate (2), and then the locking cone screw (4) is pre-screwed into the threaded hole (6) of the outermost end cover, and radial support is performed by continuously tightening the locking cone screw (4); If the contact part is a threaded shaft, it is necessary to rotate the threaded support ring (3) to a specified position, and pre-screw the locking cone screw (4) into the threaded hole (6) of the outermost end cover by fitting the inner surface of the support plate (2) with the outer surface of the threaded support ring (3). Then, radial support protection is performed by continuously tightening the opposite locking cone screw (4).

8. A rotor protector used in the method for transporting and protecting a floating rotor according to any one of claims 1 to 7, characterized in that: include: A support plate (2), wherein a plurality of threaded holes (6) are provided on the outer edge of the support plate (2), and the support plate (2) is sleeved on the rotor (1) and has an overfit or clearance fit with the rotor (1); A plurality of locking cone screws (4) are provided, passing through the threaded hole (6) and connected to the rotor (1).

9. The rotor protector according to claim 8, characterized in that: The cylindrical portion (8) of the support plate (2) is provided with a central hole (7) and is connected to the rotor (1) via a buffer rubber head locking screw.

10. The rotor protector according to claim 8, characterized in that: It also comprises a threaded support ring (3), wherein the threaded support ring (3) is sleeved inside the support disk (2), and the threaded support ring (3) is threadedly connected to the rotor (1).

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