A rotor component locking device and method of installation thereof
By fixing the relative positions of rotating and stationary parts with a rotor component locking device, the problem of positional changes after the coupling of large mechanical equipment is removed is solved, thereby achieving consistency in equipment operating status and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SEC KSB NUCLEAR PUMPS & VALVES
- Filing Date
- 2024-01-30
- Publication Date
- 2026-06-09
Smart Images
Figure CN117817602B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mechanical equipment disassembly and assembly, and in particular to a rotor component locking device and its installation method. Background Technology
[0002] Generally, large mechanical equipment mainly consists of three parts: a prime mover, a coupling, and a driven mover. The main function of the coupling is to connect the rotor components of the prime mover and the driven mover into a rotor shaft system to realize the function of the mechanical equipment. The process of connecting the two rotor components through the coupling involves the pre-alignment of the respective rotor components of the prime mover and the driven mover relative to the stationary parts, as well as the final alignment of the two rotor components of the prime mover and the driven mover during the final connection.
[0003] For operation and maintenance purposes, large mechanical equipment requires periodic or irregular removal of couplings to replace the prime mover and driven motor as a whole, or to individually inspect or replace individual components. During this process, the position of the rotor components of the prime mover and driven motor relative to the stationary components changes after removal of the couplings. Reassembly necessitates re-aligning the rotor components of the prime mover and driven motor relative to the stationary components, as well as re-aligning them during final connection. This increases the risk of collision damage between components during re-alignment after the change in position. It also increases the possibility that the operating state of the large mechanical equipment after final assembly may differ from its initial state before operation and maintenance. Furthermore, it increases the workload of maintenance personnel. For those working in environments involving radiation, such as nuclear power plants, or other environments with health risks, the impact of the working environment on their health is exacerbated. Summary of the Invention
[0004] The purpose of this invention is to reduce the risk of collision damage between components when the rotor components of the prime mover and driven mover are re-aligned after the positions of their respective rotor components relative to stationary components have changed, and to ensure that the operating state of the reassembled mechanical equipment is consistent with the initial state before operation and maintenance.
[0005] To achieve the above objectives, the first aspect of the present invention provides a rotor component locking device for fixing the relative positions of a first rotating component, a second rotating component, and a stationary component connected in sequence. The diameter of the first end of the first rotating component is smaller than the diameter of the second end. The second end of the first rotating component is connected to the second rotating component. A stepped surface is provided between the first end and the second end of the first rotating component. The stepped surface is provided with a plurality of connecting components for connecting and fixing the first rotating component and the second rotating component, including: a first fixing ring, a second fixing ring, and a third fixing ring. The first fixing ring is locked to the stepped surface of the first rotating component, the third fixing ring is locked to the outside of the stationary component, and the second fixing ring is installed between the second rotating component and the stationary component to fix the circumferential position of the second rotating component. The device further includes: a plurality of connecting assemblies, spaced apart circumferentially along the first fixing ring and the third fixing ring, for connecting and fixing the first fixing ring and the third fixing ring, thereby locking the first rotating component and the stationary component.
[0006] Preferably, the first fixing ring includes a plurality of first half-rings, and the second end of the first half-ring has a plurality of first connecting holes corresponding to the first nut and stud of the first end of the connector. By placing the first connecting holes of the first half-rings in correspondence with the first end of the connector, the first half-rings are placed on the stepped surface of the first rotating member.
[0007] Preferably, each of the first half-rings has a first protrusion and a second protrusion on its circumferential sidewall, and each of the two circumferential ends of each first half-ring has a first protrusion. Each first protrusion has a through hole, and adjacent first half-rings are connected and fixed by matching the through holes on the first protrusions of two adjacent first half-rings. Each first half-ring has at least one second protrusion, and the second protrusion has a groove for engaging and fixing the first end of the connecting component.
[0008] Preferably, the second fixing ring includes a plurality of second half-rings and a plurality of corresponding centering brackets; each of the two ends of the second half-ring has a third protrusion on its circumferential sidewall, and each third protrusion has a through hole. The adjacent second half-rings are connected and fixed by matching the through holes on the third protrusions of two adjacent second half-rings; the second half-ring has a plurality of second connecting holes corresponding to the first nut and stud at the second end of the connector. The second connecting holes are through holes, and the second end of the connector passes through the second connecting holes.
[0009] Preferably, the centering bracket includes, from the inside out: an innermost first platform, a first arc-shaped protrusion, and an outermost second platform; the first platform is located below the end face of the second end of the second half-ring; each centering bracket includes multiple first arc-shaped protrusions, the spacing between two adjacent first arc-shaped protrusions is just enough to accommodate two connected third protrusions, and the arc and size of the first arc-shaped protrusion match the second half-ring; multiple waist-shaped holes are provided on the second platform corresponding to the multiple first arc-shaped protrusions, the waist-shaped holes correspond to the third connecting holes on the end face of the first end of the stationary part, and the centering bracket is installed on the first end of the stationary part by matching the waist-shaped holes and the third connecting holes.
[0010] Preferably, the height of the second half-ring is less than the distance between the second rotating member and the stationary member, and a second mating member is provided between the first end face of the stationary member and the second half-ring to make up for the height difference of the second half-ring relative to the second rotating member and the stationary member.
[0011] Preferably, the third fixing ring is installed in the second annular groove on the outside of the stationary part, and the height of the third fixing ring matches the width of the second annular groove; each of the third half-rings has a fourth protrusion and a fifth protrusion in its circumference, the fourth protrusion corresponding to the position of the first protrusion on the first fixing ring, and the fifth protrusion corresponding to the position of the second protrusion on the first fixing ring; each of the three third half-rings has a fourth protrusion at each end in its circumference, and each fourth protrusion has a through hole, and adjacent third half-rings are connected and fixed by matching the through holes on the fourth protrusions of two adjacent third half-rings; each of the three third half-rings has at least one fifth protrusion, and the fifth protrusion has a groove for engaging and fixing the second end of the connecting assembly.
[0012] Preferably, the connecting assembly includes a connecting rod at a first end and a fixing member at a second end. The second end of the fixing member is fixed in the groove of the fifth protrusion of the third fixing ring. The second end of the connecting rod is threaded to the first end of the fixing member. The first end of the connecting rod is engaged in the groove of the second protrusion of the first fixing ring. The first end of the connecting rod is fixed to the first fixing ring by a nut.
[0013] Preferably, a plurality of first mating parts are respectively provided between the first connecting hole of the first fixing ring and the first end of the connector, and between the second connecting hole and the second end of the connector. The first mating parts are annular, with their inner side matching the first nut and their outer side matching the first connecting hole and the second connecting hole.
[0014] A second aspect of the present invention provides a method for installing a rotor component locking device, comprising the following steps:
[0015] S1. Place first mating parts at intervals in the multiple second connecting holes of each second half-ring. Then, place the second half-ring equipped with the first mating parts from bottom to top onto the second end of the connector between the stationary part and the second rotating part. During this process, rotate the first mating parts to match the first nut at the second end of the connector, and place the second mating parts between the stationary part and the second half-ring to support the second half-ring. Connect and fix adjacent second half-rings by matching the through holes on the third protrusions of two adjacent second half-rings. Install the centering bracket radially so that the distance between the two first arc-shaped protrusions of each centering bracket exactly accommodates the two third protrusions after connection. Install the centering bracket at the first end of the stationary part by matching the waist-shaped hole on the centering bracket and the third connecting hole on the stationary part, thus completing the installation of the second fixing ring. At this time, the second rotating part is a certain distance away from the second half-ring.
[0016] S2. Place first mating parts at intervals in the multiple first connecting holes of each first half-ring, place the multiple first half-rings on the stepped surface of the first rotating part, control the position of the first connecting hole to correspond with the first nut at the first end of the connector, and rotate the first mating parts to match the first nut at the first end of the connector; connect and fix the adjacent first half-rings by matching and connecting the through holes on the first protrusions of two adjacent first half-rings, thereby completing the installation of the first fixing ring;
[0017] S3. Place multiple third half-rings radially into the second annular groove outside the stationary part, and connect and fix the adjacent third half-rings by matching the through holes on the fourth protrusions of the two adjacent third half-rings; during the process, control the groove on the fifth protrusion of the third half-ring to correspond to the groove on the second protrusion of the first half-ring.
[0018] S4. Fix the second end of the fastener to the third fixing ring; thread the second end of the connecting rod to the first end of the fastener to complete the assembly of the connecting component; insert the first end of the connecting component into the groove on the second protrusion of the first fixing ring, and fix the connecting component to the first fixing ring by tightening the nut between the connecting rod and the first fixing ring.
[0019] S5. By tightening the nut between the connecting rod and the first fixed ring, the first fixed ring and the third fixed ring are tightened, while the second rotating member is lowered to contact the second half ring.
[0020] Compared with the prior art, the present invention has at least the following advantages and beneficial effects:
[0021] This invention uses a first fixed ring to connect a first rotating component, a third fixed ring to connect a stationary component, and a connecting assembly to connect and fix the first and third fixed rings, thus limiting the relative position of the rotating and stationary components. A second fixed ring further limits the axial relative position of the rotating and stationary components. This invention can be used in large mechanical equipment during the process of removing the coupling to replace the prime mover and driven mover as a whole or to individually repair or replace the components, to lock the rotor components and keep the position of each rotor component relative to the stationary component of the prime mover or driven mover unchanged.
[0022] This invention eliminates the risk of collision damage between components when the rotor components of the prime mover and driven mover are realigned after the relative positions of the rotor components to the stationary components have changed, as well as the possibility that the operating state of large mechanical equipment after final assembly may be inconsistent with the initial state before operation and maintenance; at the same time, it reduces the workload of maintenance personnel and reduces the impact on health when working for a long time in environments containing radiation and other factors that may affect human health, such as nuclear power plants.
[0023] When the reactor coolant pump motor of a nuclear power plant is replaced or repaired under system pressure, the rotor component locking device of the present invention can ensure that the relative position between the pump-side rotor and the stationary component remains unchanged and is maintained in the original working state. Moreover, during the entire replacement and repair process, there is no need to perform a series of complex tasks such as cooling, depressurizing, draining, and then re-injecting, heating, and pressurizing the nuclear power plant system. Attached Figure Description
[0024] Figure 1 This is a schematic diagram illustrating the use of the rotor component locking device according to an embodiment of the present invention;
[0025] Figure 2 This is a schematic diagram of the rotor component in the present invention;
[0026] Figure 3 This is a three-dimensional structural diagram of the rotor component locking device according to an embodiment of the present invention;
[0027] Figure 4 This is a schematic diagram of the structure of the first mating component in an embodiment of the present invention;
[0028] Figure 5 This is a schematic diagram of the centering bracket in an embodiment of the present invention;
[0029] Figure 6 This is a cross-sectional schematic diagram of the rotor component locking device according to an embodiment of the present invention;
[0030] Figure 7 This is a partial structural diagram of the second fixing ring during assembly in an embodiment of the present invention;
[0031] Figure 8This is a partial structural diagram of the first fixing ring during assembly in an embodiment of the present invention;
[0032] Figure 9 This is a partial structural diagram of the third fixing ring during assembly in an embodiment of the present invention;
[0033] Figure 10 This is a partial structural diagram of the connection component during assembly in an embodiment of the present invention. Detailed Implementation
[0034] The following will be combined with the embodiments of the present invention. Figures 1-10 The technical solutions, structural features, objectives and effects achieved in the embodiments of the present invention will be described in detail.
[0035] It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions. They are only used to facilitate and clarify the purpose of illustrating the embodiments of the present invention, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationship, or adjustments to the size should still fall within the scope of the technical content disclosed in the present invention, provided that they do not affect the effects and objectives that the present invention can produce.
[0036] It should be noted that, in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," 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 the expressly listed elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0037] This embodiment discloses a rotor component locking device, such as... Figure 1 As shown, the relative positions of the first rotating member 100, the second rotating member 200, and the stationary member 300, which are connected in sequence, are fixed. The first end of the second rotating member 200 (for ease of description, the first end of each component in the following figure refers to the upper end, and the second end refers to the lower end) is connected to the second end of the first rotating member 100, and the second end of the second rotating member 200 is connected to the first end of the stationary member 300. The end faces of the first rotating member 100 and the second rotating member 200 are both smaller than the end face of the stationary member 300. There is no gap between the first rotating member 100 and the second rotating member 200, and there is a certain gap between the second rotating member 200 and the stationary member 300.
[0038] The rotor component locking device of this embodiment includes: a first fixing ring 1, a second fixing ring 2, and a third fixing ring 3. The first fixing ring 1 is locked to the outside of the first rotating member 100, and the third fixing ring 3 is locked to the outside of the stationary member 300. The second fixing ring 2 is installed between the second rotating member 200 and the stationary member 300 to fix the circumferential position of the second rotating member 200. The rotor component locking device also includes a plurality of connecting components 4. Each connecting component 4 connects the outside of the first fixing ring 1 and the outside of the third fixing ring 3. The plurality of connecting components 4 are arranged at intervals along the circumference of the first fixing ring 1 and the third fixing ring 3 to connect and fix the first fixing ring 1 and the third fixing ring 3, thereby locking the axial position of the first rotating member 100 and the stationary member 300.
[0039] like Figure 2 As shown, the diameter of the first end of the first rotating member 100 is smaller than the diameter of its second end. The second end of the first rotating member 100 is connected to the second rotating member 200 and they have the same diameter. There is a stepped surface between the first end and the second end of the first rotating member 100. The first fixing ring 1 is connected to the stepped surface of the first rotating member 100. Multiple connectors are provided on the stepped surface of the first rotating member 100. The connectors are used to connect and fix the second end of the first rotating member 100 and the second rotating member 200. Each connector includes a stud 102 and two first nuts 101. The stud 102 passes through the second end of the first rotating member 100 and the second rotating member 200. The two first nuts 101 are respectively installed on the end face of the second end of the first rotating member 100 (the side close to the first end of the first rotating member 100) and the end face of the second end of the second rotating member 200 (the side close to the third rotating member 300), cooperating with the stud 102. Tightening the first nuts 101 connects and fixes the second end of the first rotating member 100 and the second rotating member 200.
[0040] like Figure 3 , Figure 6 , Figure 8 As shown, the first fixing ring 1 includes a plurality of first half-rings 11. In this embodiment, there are three first half-rings 11. These first half-rings 11 are assembled to form the first fixing ring 1. The first fixing ring 1 is installed on the stepped surface of the first rotating member 100. The second end of the first half-ring 11 is provided with a plurality of first connecting holes corresponding to the first nut 101 and stud 102 at the first end of the connector. By placing the first connecting holes of the first half-ring 11 corresponding to the first end of the connector, the first half-ring 11 is placed on the stepped surface of the first rotating member 100.
[0041] Each of the first half-rings 11 has a plurality of first protrusions 12 and second protrusions 13 on its circumferential sidewall. Each of the two circumferential ends of each first half-ring 11 has a first protrusion 12 and a through hole. Screws are passed through the through holes on the first protrusions 12 of two adjacent first half-rings 11 and tightened to connect and fix the adjacent first half-rings 11. Each of the first half-rings 11 has at least one second protrusion 13, and the second protrusion 13 has a groove for engaging and fixing the first end of the connecting assembly 4. In this embodiment, each of the first half-rings 11 has two second protrusions 13. In other embodiments, other numbers of second protrusions 13 may be provided.
[0042] Furthermore, a plurality of first mating parts 14 are provided between the first connecting hole of the first fixing ring 1 and the first end of the connector, such as... Figure 4 As shown, the first mating part 14 is annular, with its inner side matching the first nut 101 and its outer side matching the first connecting hole. By providing the first mating part 14 between the outer side of the first nut 101 and the first connecting hole, the relative position of the first fixing ring 1 and the connector is more fixed. In some embodiments, one first mating part 14 is used every other first connecting hole. On the one hand, this fixes the relative position of the first fixing ring 1 and the connector. On the other hand, compared to providing the first mating part 14 in every first connecting hole, providing the first mating part 14 at intervals makes the installation of the first fixing ring 1 more convenient.
[0043] like Figure 3 , Figure 6 , Figure 7 As shown, the second fixing ring 2 includes two second half-rings 21 and two centering brackets 22; the second half-rings 21 are assembled into a complete ring, and a third protrusion 23 is provided on the circumferential sidewalls at both ends of each second half-ring 21. Each third protrusion 23 has a through hole. Screws are passed through the through holes on the third protrusions 23 of two adjacent second half-rings 21 and tightened to connect and fix the adjacent second half-rings 21; a plurality of second connecting holes 24 are provided on the second half-rings 21, corresponding to the first nut 101 and stud 102 at the second end of the connector. The total number of the second connecting holes 24 is consistent with the total number of the first connecting holes and the total number of connectors. The second connecting holes 24 are through holes, and the first nut 101 and stud 102 at the second end of the connector pass through the second connecting holes 24. Furthermore, multiple first mating parts 14 are also provided at intervals between the second connecting hole 24 and the second end of the connector, which on the one hand further fixes the relative position of the second half ring 21 and the connector, and on the other hand makes the installation of the second half ring 21 more convenient.
[0044] like Figure 5As shown, the centering bracket 22 is semi-circular, comprising, from the inside out: an innermost first platform 221, a first arc-shaped protrusion 222, and an outermost second platform; the first platform 221 is located below the end face of the second end of the second half-ring 21; each centering bracket 22 includes two first arc-shaped protrusions 222, the distance between the two first arc-shaped protrusions 222 precisely accommodating the two connected third protrusions 23, and the arc and size of the first arc-shaped protrusions 222 match those of the second half-ring 21, thus the centering bracket 22 serves to fix the two adjacent second half-rings 21 after connection; two waist-shaped holes 223 are provided on the second platform corresponding to the two first arc-shaped protrusions 222, the position and arc of which correspond to the position and arc of the multiple third connecting holes 301 on the first end face of the stationary component 300, as shown in the figure. Figure 6 and Figure 7 As shown, the centering bracket 22 is installed at the first end of the stationary member 300 by passing the screw 25 through the waist-shaped hole 223 and the third connecting hole 301 on the stationary member 300 in sequence. Furthermore, a washer 27 is provided between the screw 25 and the waist-shaped hole 223.
[0045] The second end of the centering bracket 22 is also provided with a plurality of second arc-shaped protrusions 28, which can be embedded into the first annular groove 303 on the first end face of the stationary member 300, thereby further positioning the centering bracket 22.
[0046] Furthermore, the height of the first arc-shaped protrusion 222 is greater than that of the second half-ring 21. Combined with the two third protrusions 23 connected by the spacing between the two first arc-shaped protrusions 222, the centering bracket 22 is fixed to the stationary member 300 by connection, which further fixes the position of the second half-ring 21, thereby preventing the circumferential rotation of the second rotating member 200.
[0047] Furthermore, the height of the second half-ring 21 is less than the distance between the second rotating member 200 and the stationary member 300. A second mating member 26 is provided between the first end face of the stationary member 300 and the second half-ring 21 to compensate for the height difference between the second half-ring 21 and the second rotating member 200 and the stationary member 300. This fixes the distance between the second rotating member 200 and the stationary member 300 by the second half-ring 21 and the second mating member 26, thus fixing the axial position of the second rotating member 200 and the stationary member 300. Preferably, the second mating member 26 is a plurality of arc-shaped rings, which facilitates placement between the stationary member 300 and the second half-ring 21.
[0048] like Figures 2 to 9As shown, the third fixing ring 3 is installed in the second annular groove 302 outside the stationary member 300. The height of the third fixing ring 3 matches the width of the second annular groove 302. Similar to the first fixing ring 1, the third fixing ring 3 includes multiple third half-rings 31. In this embodiment, there are three third half-rings 31, which are assembled to form the third fixing ring 3. Each third half-ring 31 has a fourth protrusion 32 and a fifth protrusion 33 circumferentially. The fourth protrusion 32 corresponds to the position of the first protrusion 12 on the first fixing ring 1, and the fifth protrusion 33 corresponds to the position of the second protrusion 13 on the first fixing ring 1. Each third half-ring 31 has a circumferential opening at both ends. Each of the fourth protrusions 32 has a through hole. A screw is passed through the through hole on the fourth protrusion 32 of two adjacent third half-rings 31 and tightened to connect and fix the adjacent third half-rings 31. Each of the third half-rings 31 has at least one fifth protrusion 33, which has a groove for engaging and fixing the second end of the connecting assembly 4. In this embodiment, each third half-ring 31 has two fifth protrusions 33, which correspond to the second protrusion 13 on the first fixing ring 1. In other embodiments, other numbers of fifth protrusions 33 may be provided, but they must all correspond to the position and number of the second protrusion 13 on the first fixing ring 1.
[0049] Furthermore, the fifth protrusion 33 also has through holes at both ends of the groove for connecting and fixing the second end of the connecting component 4.
[0050] like Figure 3 and Figure 6 As shown, the number of connecting components 4 matches the number of the second protrusion 13 and the fifth protrusion 33. The first end of the connecting component 4 engages in the groove of the second protrusion 13, and the second end of the connecting component 4 engages in the groove of the fifth protrusion 33. Figure 10 As shown, the connecting assembly 4 includes a connecting rod 41 at the first end and a fixing member 42 at the second end. The second end of the fixing member 42 is provided with a through hole, which is matched with the through hole on the groove of the fifth protrusion 33, thereby fixing the fixing member 42 to the third fixing ring 3. The first end of the fixing member 42 is a threaded hole, and the connecting rod 41 is cylindrical with an external thread corresponding to the fixing member 42 at its second end, thereby threading the connecting rod 41 and the fixing member 42. The first end of the connecting rod 41 is engaged in the groove on the second protrusion 13 of the first fixing ring 1, and the first end of the connecting rod 41 is also provided with an external thread. The connecting rod 41 is further fixed to the first fixing ring 1 by the second nut 43 and the washer.
[0051] The connecting rod 41 and the fixing member 42 in the connecting assembly 4 are connected, wherein the connecting rod 41 is connected to the first fixing ring 1 and the fixing member 42 is connected to the third fixing ring 3, thereby locking the first fixing ring 1 and the third fixing ring 3, and thus locking the relative position of the first rotating member 100 and the stationary member 300; the centering bracket 22 and the second half ring 21 engaged in the second fixing ring 2, wherein the centering bracket 22 is connected to the stationary member 300 and the second half ring 21 is located at the second end of the second rotating member 200, thereby circumferentially positioning the rotating member 200.
[0052] This embodiment also provides an installation method for the above-mentioned rotor component locking device, including the following steps:
[0053] S1. Install the second half-ring 21 and the centering bracket 22 sequentially between the stationary part 300 and the second rotating part 200;
[0054] like Figure 7 As shown, first mating parts 14 are placed at intervals in the multiple second connecting holes 24 of each second half-ring 21. Then, the second half-ring 21 equipped with the first mating parts 14 is placed from bottom to top on the second end of the connector between the stationary part 300 and the second rotating part 200. During this process, the first mating parts 14 are rotated to match the first nut 101 at the second end of the connector, and the second mating parts 26 are placed between the stationary part 300 and the second half-ring 21 to support the second half-ring 21. The through holes on the third protrusions 23 on two adjacent second half-rings 21 are tightened with screws to connect and fix the adjacent second half-rings 21.
[0055] After the second half-ring 21 is installed, the centering bracket 22 is installed radially, so that the distance between the two first arc-shaped protrusions 222 of each centering bracket 22 just accommodates the two third protrusions 23 after connection. At the same time, the second arc-shaped protrusion 28 at the bottom of the centering bracket 22 is embedded in the first annular groove 303 on the first end face of the stationary member 300. The centering bracket 22 is installed at the first end of the stationary member 300 by passing the screw 25 through the waist-shaped hole 223 on the centering bracket 22 and the third connecting hole 301 on the stationary member 300 in sequence. A washer 27 is placed between the screw 25 and the waist-shaped hole 223, thereby completing the installation of the second fixing ring 2.
[0056] In this step, in order to ensure the smooth assembly of the second fixed ring 2, the distance between the second rotating part 200 and the stationary part 100 is slightly greater than the sum of the heights of the second mating part 26 and the second half-ring 21. Therefore, the second rotating part 200 is a certain distance away from the second half-ring 21.
[0057] S2. Install multiple first half-rings 11;
[0058] like Figure 8As shown, first mating parts 14 are placed at intervals in multiple first connecting holes at the second end of each first half-ring 11. Multiple first half-rings 11 are placed on the stepped surface of the first rotating part 100. During the placement process, the position of the first connecting hole is controlled to correspond with the first nut 101 at the first end of the connector. During this period, the first mating parts 14 are rotated to match the first nut 101 at the first end of the connector. The through holes on the first protrusions 12 on two adjacent first half-rings 11 are tightened with screws to connect and fix the adjacent first half-rings 11, thereby completing the installation of the first fixing ring 1.
[0059] S3, Install multiple third half-rings 31;
[0060] like Figure 9 As shown, multiple third half-rings 31 are placed radially on the stationary part 300, and screws are used to tighten the through holes on the fourth protrusions 32 of two adjacent third half-rings 31 to connect and fix the adjacent third half-rings 31; during the process, the grooves opened on the fifth protrusions 33 of the third half-rings 31 are controlled to correspond to the grooves opened on the second protrusions 13 of the first half-rings 31.
[0061] S4. Install connection component 4;
[0062] like Figure 10 As shown, the fastener 42 is fixed to the third fixing ring 3 by matching the through hole at the second end of the fastener 42 with the through hole on the groove of the fifth protrusion 33; the second end of the connecting rod 41 is threaded to the first end of the fastener 42 to complete the assembly of the connecting component 4; the first end of the connecting component 4 is inserted into the groove on the second protrusion 13 of the first fixing ring 1, and the connecting component 4 is fixed to the first fixing ring 1 by the second nut 43 and the washer.
[0063] S5. Tighten the first retaining ring 1 and the third retaining ring 3 by locking the second nut 43;
[0064] In this step, when the second nut 43 is tightened, a downward force is applied to the first rotating member 100 and the second rotating member 200, so that the second rotating member 200 descends to contact the second half ring 21. At this time, the second nut 43 is fixed, and the positions of the first fixed ring 1 and the third fixed ring 3 are fixed, thereby fixing the axial relative position between the second rotating member 200 and the stationary member 300.
[0065] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A rotor component locking device for fixing the relative positions of a first rotating component, a second rotating component, and a stationary component connected in sequence, wherein the diameter of a first end of the first rotating component is smaller than the diameter of a second end, the second end of the first rotating component is connected to the second rotating component, and a stepped surface is provided between the first end and the second end of the first rotating component, wherein a plurality of connecting members for connecting and fixing the first rotating component and the second rotating component are provided on the stepped surface, characterized in that, include: The system comprises a first fixing ring, a second fixing ring, and a third fixing ring. The first fixing ring is locked onto the stepped surface of the first rotating member, the third fixing ring is locked onto the outside of the stationary member, and the second fixing ring is installed between the second rotating member and the stationary member to fix the circumferential position of the second rotating member. It also includes a plurality of connecting components spaced circumferentially along the first and third fixing rings to connect and fix the first and third fixing rings, thereby locking the first rotating member and the stationary member. The first fixing ring includes a plurality of first half-rings, and each first half-ring has at least one second protrusion on its circumferential sidewall. The second protrusion has a groove for engaging and fixing the first end of the connecting assembly. The third fixing ring includes a plurality of third half rings, each of the third half rings having at least one fifth protrusion in its circumference, and the fifth protrusion having a groove for engaging and fixing the second end of the connecting component; The connecting assembly includes a connecting rod at a first end and a fixing member at a second end. The second end of the fixing member is fixed in the groove of the fifth protrusion of the third fixing ring. The second end of the connecting rod is threaded to the first end of the fixing member. The first end of the connecting rod is engaged in the groove of the second protrusion of the first fixing ring. The first end of the connecting rod is fixed to the first fixing ring by a nut.
2. The rotor component locking device as described in claim 1, characterized in that, The second end of the first half-ring has a plurality of first connecting holes corresponding to the first nut and stud at the first end of the connector. By placing the first connecting holes of the first half-ring in correspondence with the first end of the connector, the first half-ring is placed on the stepped surface of the first rotating member.
3. A rotor component locking device as described in claim 2, characterized in that, Each of the first half rings is provided with a first protrusion on its circumferential sidewall. Each of the two circumferential ends of each first half ring is provided with a first protrusion. Each first protrusion is provided with a through hole. The adjacent first half rings are connected and fixed by matching the through holes on the first protrusions of two adjacent first half rings.
4. A rotor component locking device as described in claim 3, characterized in that, The second fixing ring includes multiple second half-rings and corresponding multiple centering brackets; each of the two ends of the second half-ring has a third protrusion on its circumferential sidewall, and each third protrusion has a through hole. The adjacent second half-rings are connected and fixed by matching the through holes on the third protrusions of two adjacent second half-rings; the second half-ring has multiple second connecting holes corresponding to the first nut and stud at the second end of the connector. The second connecting holes are through holes, and the second end of the connector passes through the second connecting holes.
5. A rotor component locking device as described in claim 4, characterized in that, The centering bracket, from the inside out, includes: an innermost first platform, a first arc-shaped protrusion, and an outermost second platform; the first platform is located below the end face of the second end of the second half-ring; each centering bracket includes multiple first arc-shaped protrusions, the spacing between two adjacent first arc-shaped protrusions is just enough to accommodate two connected third protrusions, and the arc and size of the first arc-shaped protrusion match the second half-ring; multiple waist-shaped holes are provided on the second platform corresponding to the multiple first arc-shaped protrusions, the waist-shaped holes correspond to the third connecting holes on the end face of the first end of the stationary part, and the centering bracket is installed on the first end of the stationary part by matching the waist-shaped holes and the third connecting holes.
6. A rotor component locking device as described in claim 5, characterized in that, The height of the second half-ring is less than the distance between the second rotating member and the stationary member. A second mating member is provided between the first end face of the stationary member and the second half-ring to make up for the height difference of the second half-ring relative to the second rotating member and the stationary member.
7. A rotor component locking device as described in claim 6, characterized in that, The third fixing ring is installed in the second annular groove on the outside of the stationary part, and the height of the third fixing ring matches the width of the second annular groove. Each of the third half rings is also provided with a fourth protrusion in the circumference. The fourth protrusion corresponds to the position of the first protrusion on the first fixing ring, and the fifth protrusion corresponds to the position of the second protrusion on the first fixing ring. Each of the three third half rings has a fourth protrusion at each end in the circumference. Each fourth protrusion has a through hole. By matching the through holes on the fourth protrusions of two adjacent third half rings, the adjacent third half rings are connected and fixed.
8. A rotor component locking device as described in claim 4, characterized in that, Multiple first mating parts are respectively provided between the first connecting hole of the first fixing ring and the first end of the connector, and between the second connecting hole and the second end of the connector. The first mating parts are annular, with their inner side matching the first nut and their outer side matching the first connecting hole and the second connecting hole.
9. A method for installing a rotor component locking device, used for installing the rotor component locking device as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Place first mating parts at intervals in the multiple second connecting holes of each second half-ring. Then, place the second half-ring equipped with the first mating parts from bottom to top onto the second end of the connector between the stationary part and the second rotating part. During this process, rotate the first mating parts to match the first nut at the second end of the connector, and place the second mating parts between the stationary part and the second half-ring to support the second half-ring. Connect and fix the adjacent second half-rings by matching the through holes on the third protrusions of two adjacent second half-rings. Install centering brackets radially so that the distance between the two first arc-shaped protrusions of each centering bracket can just accommodate the two third protrusions after connection. By matching the waist-shaped hole on the centering bracket and the third connecting hole on the stationary part, the centering bracket is installed on the first end of the stationary part, completing the installation of the second fixing ring; at this time, the second rotating part is a certain distance away from the second half-ring; S2, the first mating parts are placed at intervals in the multiple first connecting holes of each first half-ring, and the multiple first half-rings are placed on the stepped surface of the first rotating part. During the placement process, the position of the first connecting hole is controlled to correspond with the first nut at the first end of the connector, and the first mating parts are rotated to match the first nut at the first end of the connector; by matching the through holes on the first protrusions of two adjacent first half-rings, the adjacent first half-rings are connected and fixed, thereby completing the installation of the first fixing ring; S3, the multiple third half-rings are placed radially on the outer side of the stationary part of the first half-ring. Within the two annular grooves, the adjacent third half-rings are connected and fixed by matching the through holes on the fourth protrusions of the two adjacent third half-rings; during the process, the groove on the fifth protrusion of the third half-ring is controlled to correspond to the groove on the second protrusion of the first half-ring; S4, the second end of the fixing member is fixed on the third fixing ring; the second end of the connecting rod is threaded to the first end of the fixing member to complete the assembly of the connecting component; the first end of the connecting rod is inserted into the groove on the second protrusion of the first fixing ring, and the connecting component is fixed on the first fixing ring by locking the nut between the connecting rod and the first fixing ring; S5, the first fixing ring and the third fixing ring are tightened by locking the nut between the connecting rod and the first fixing ring, and the second rotating member is lowered to contact the second half-ring.