A vertical rotating machine main shaft cable threading device and method

Abstract

The application relates to the technical field of rotating mechanical equipment assembly, in particular to a vertical rotating mechanical main shaft inner cable threading and arranging device and a threading and arranging method. The device comprises a guide assembly, a suspension assembly and a suspension connecting piece. The guide assembly is installed on the core of the main shaft, and a partition structure is arranged in the guide assembly, so that the internal space of the main shaft is divided into multiple independent areas. Multiple suspension assemblies are sequentially arranged in the guide assembly along the axial direction of the guide assembly, and the suspension assemblies are used for fixing cable sections threaded in the main shaft. The suspension connecting piece connects two adjacent suspension assemblies. The application realizes the safe, orderly and high-quality threading and arranging of the cables in the main shaft by partitioning and isolating cables of different specifications through the guide assembly and stably fixing the cables in the vertical and radial directions through the suspension assembly.

Description

Technical Field

[0001] This invention relates to the field of rotating machinery equipment assembly technology, specifically to a cable routing device and method for the spindle of a vertical rotating machine. Background Technology

[0002] In vertical rotating machinery, cables are typically laid inside the spindle to power the equipment or transmit signals. Since the cables can only be laid and threaded on-site, rather than being pre-installed during manufacturing, the quality of the cable threading inside the spindle directly affects the operational reliability of the rotating machinery.

[0003] Currently, cable routing within the spindle is primarily done manually, with operators threading cables of different specifications one by one into the spindle cavity. During this process, the first cables inserted lack effective spatial constraints within the spindle, making it easy for subsequent cables to become entangled and clogged, resulting in difficult and inefficient routing. Especially when the spindle is long, the cables are suspended solely by their own weight, lacking reliable vertical support and radial constraints. As the spindle rotates, the cables sway, and the continuous vertical strain can cause them to break.

[0004] Furthermore, for rotors that include spindles and cables, their balance quality directly affects the operational stability of rotating machinery. While the spindle typically undergoes dynamic balancing testing and adjustment during manufacturing, the uncertain distribution of cables within the spindle after on-site installation, along with cable entanglement and positional misalignment, introduces additional unbalanced mass, significantly impacting the rotor's dynamic balance quality and consequently causing abnormal vibrations in the rotating machinery. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems, this invention provides a cable threading device and method for the spindle of a vertical rotating machine, which solves the problems of difficult construction, easy breakage of cables, and the impact of cables on the balance quality of the rotating machine rotor during the cable threading process of the spindle of a vertical rotating machine.

[0006] This invention is achieved through the following technical solution:

[0007] A cable routing device for a vertical rotating machinery spindle includes: a guide assembly installed in the core of the spindle, wherein the guide assembly has a partition structure that divides the internal space of the spindle into multiple independent areas;

[0008] Multiple suspension assemblies are sequentially arranged within the guide assembly along the axial direction of the guide assembly, and the suspension assemblies are used to fix cable segments passing through the main shaft;

[0009] A suspension connector that connects two adjacent suspension assemblies;

[0010] The uppermost suspension assembly and the lowermost suspension assembly are both fixedly connected to the guide assembly via connectors.

[0011] Furthermore, the guide assembly includes a guide tube and end caps, with the two end caps respectively disposed at both ends of the main shaft. The guide tube is provided with the partition structure, and the two ends of the guide tube are positioned and fixed to the core of the main shaft through the end caps. The end caps are used to position the guide tube at the core of the main shaft.

[0012] Specifically, the conduit includes a circular tube and a partition groove disposed outside the circular tube, the circular tube and the partition groove together perform regional isolation for different types of cables;

[0013] The end caps are fixed to both ends of the spindle by bolts, and the guide tube is clamped and positioned in the spindle core by a stop. The end caps are provided with waist-shaped holes for cables to pass through. The two ends of the connector are connected between the two end caps.

[0014] Furthermore, the suspension assembly includes a fixing member with a through guide hole. The fixing member fixes the cable to the suspension assembly. The connector passes through the guide hole and provides axial guidance for the suspension assembly and restricts its circumferential rotation during installation and operation.

[0015] Specifically, the fixing component is a fixing block, and the fixing block is provided with a threaded mounting through hole for the cable to pass through;

[0016] The suspension assembly also includes a cable clamping connector, which is screwed to the upper and lower ends of the fixing block and clamps and fixes the cable.

[0017] Specifically, a graphite sleeve is installed inside the guide through hole, and the graphite sleeve has a through hole for the connector to pass through, and the graphite sleeve and the connector are slidably fitted together.

[0018] Specifically, the cable clamping connector includes a connector body, a nylon ring, and a nut; the nylon ring is an annular structure with a notch around its circumference and is installed in a stop inside the connector body; the inner hole of the nut and the outer circle of the nylon ring are both conical.

[0019] In use, the tapered fit between the nut and the nylon ring causes the nylon ring to undergo radial inward flexible deformation, clamping and fixing the cable to the connector body.

[0020] Preferably, the mounting through hole is arranged in an axisymmetric structure.

[0021] In some embodiments, the suspension connector includes a steel wire rope and an eye bolt, the eye bolt being disposed on the fixing block for connecting the steel wire rope, and the length of each segment of the steel wire rope being less than the length of the corresponding cable segment between two adjacent suspension components.

[0022] The present invention also provides a method for threading cables through the spindle of a vertical rotating machine, based on the threading device described above, the method comprising the following steps:

[0023] S1. Install the guide assembly in the core of the spindle, and divide the internal space of the spindle into multiple independent areas through the partitioning structure of the guide assembly;

[0024] S2. Insert the first type of cable into the area corresponding to the partition structure of the guide component;

[0025] S3. Pre-install the second type of cable onto each of the suspension components;

[0026] S4. Each of the suspension assemblies pre-installed with the second type of cable is sequentially inserted into the guide assembly from one end of the main shaft, and adjacent suspension assemblies are connected end to end by the suspension connector.

[0027] S5. Fix the uppermost suspension assembly and the lowermost suspension assembly to the end caps at both ends of the guide assembly using connectors to complete the threading and fixing of the second type of cable.

[0028] This invention achieves safe, orderly, and high-quality cable routing within the spindle by using a guide component to isolate cables of different specifications and a suspension component to stably fix the cables vertically and radially. This invention has the following beneficial effects:

[0029] By setting a guide component with a partition structure in the spindle core, cables of different specifications are separated into their own independent areas, avoiding tangling and blockage of cables during the threading process, reducing the difficulty of threading construction and improving construction efficiency;

[0030] Through the load-bearing design of multiple suspension components connected end to end by suspension connectors, the weight of each cable segment is borne by the suspension connectors rather than by the cable itself under tension. At the same time, the suspension components use fixing components to fix and constrain the cable radially and axially, avoiding the cable from swaying and vertically pulling and breaking during rotation, thus solving the problems of difficult cable fixing and easy breakage.

[0031] By using a connector that passes through the guide hole of the suspension assembly, the axial guidance of the suspension assembly is provided during installation, and its circumferential rotation is restricted, ensuring that the position of each suspension assembly and cable within the spindle is stable and controllable. Attached Figure Description

[0032] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the invention. These drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, but do not constitute a limitation on the embodiments of the present invention.

[0033] Figure 1 A schematic diagram of the overall structure of the cable routing device inside the spindle of a vertical rotating machine provided in an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the guide assembly provided in an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the catheter structure provided in an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the suspension assembly provided in an embodiment of the present invention;

[0037] Figure 5 This is a structural schematic diagram of the fixing component provided in an embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the cable clamping connector provided in an embodiment of the present invention;

[0039] Reference numerals: 1-Spindle; 2-Guide assembly; 3-Conduit; 4-Round tube; 5-Sectional groove; 6-End cap; 7-Oval hole; 9-Connector; 10-Bolt; 11-Suspension assembly; 12-Fixing block; 13-Guide through hole; 14-Mounting through hole; 15-Graphite sleeve; 16-Cable clamp connector; 17-Connector body; 18-Nylon ring; 19-Notch; 20-Nut; 21-Eyelash screw; 22-Suspension connector; 23-Category II cable; 24-Category I cable. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0041] It should also be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0042] Where there is no conflict, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] Example 1

[0044] This embodiment illustrates the overall structure of the cable routing device inside the spindle 1 of a vertical rotating machine. For example... Figure 1 As shown, a cable routing device is provided for the spindle 1 of a vertical rotating machine. The device is used to lay and fix cables in an orderly manner inside the spindle 1 of the vertical rotating machine. It mainly includes a guide assembly 2, multiple suspension assemblies 11 and suspension connectors 22.

[0045] The guide assembly 2 is installed in the core of the spindle 1 and has a partition structure that divides the internal space of the spindle 1 into multiple independent areas. The partition structure can provide independent channel space for cables of different specifications, so that different types of cables do not interfere with each other during the routing process. For example, in scenarios where power cables and signal cables need to be laid simultaneously, the partition structure can constrain the two types of cables in different areas, thereby avoiding tangling and blockage during routing.

[0046] Multiple suspension assemblies 11 are sequentially arranged within the guide assembly 2 along its axial direction. Each suspension assembly 11 is used to fix a section of cable passing through the main shaft 1, so that the cable is fixed in segments rather than suspended as a whole. The suspension assemblies 11 are spaced apart in the axial direction of the main shaft 1, and the suspension assemblies 11 are connected to each other by suspension connectors 22. The suspension connectors 22 connect two adjacent suspension assemblies 11. After all the suspension assemblies 11 are inserted into the main shaft 1, the suspension connectors 22 bear the weight of each suspension assembly 11 and the cable fixed on it, avoiding the cable itself bearing vertical tension.

[0047] Both the uppermost and lowermost suspension components 11 are fixedly connected to the guide component 2 via connectors 9. This ensures that both ends of the entire suspension component 11 chain have fixed points within the main shaft 1, guaranteeing the positional stability of the suspension component 11 and the cable during the rotation of the main shaft 1.

[0048] Example 2

[0049] This embodiment further illustrates the specific structure of the guide component 2 based on Embodiment 1.

[0050] like Figure 1 As shown, the guide assembly 2 includes two parts: a guide tube 3 and end caps 6. Two end caps 6 are respectively disposed at both ends of the main shaft 1, and a connector 9 is disposed inside the main shaft 1 and extends axially. The guide tube 3 has a partition structure, and both ends of the guide tube 3 are positioned and fixed to the core of the main shaft 1 via the end caps 6.

[0051] like Figure 2As shown, the conduit 3 includes a circular tube 4 and a partitioned groove 5 disposed outside the circular tube 4. The circular tube 4 is the main structure of the conduit 3, located at the center of the core of the main shaft 1; the partitioned groove 5 is disposed on the outside of the circular tube 4, extending outward along the outer wall of the circular tube 4 to form an independent channel space. The circular tube 4 and the partitioned groove 5 together isolate different types of cables: one type of cable (such as signal cables and other thinner cables, hereinafter referred to as "Type 1 cable 24") passes through the partitioned groove 5, while another type of cable (such as power cables and other cables that require fixed support, hereinafter referred to as "Type 2 cable 23") passes through the internal space of the circular tube 4 and is fixed by the suspension assembly 11. Through this partitioned layout, cables of different specifications are each in an independent space, and do not interfere with each other during installation and operation.

[0052] like Figure 3 As shown, the end caps 6 are fixed to both ends of the spindle 1 by bolts 10. The two end caps 6 clamp and position the guide tube 3 in the core of the spindle 1 through a stop, and the stop structure can ensure the radial positioning accuracy of the guide tube 3 in the spindle 1. The end caps 6 are provided with oblong holes 7 for the cable to pass through from both ends of the spindle 1. The shape of the oblong holes 7 facilitates the cable lead-out and fixation.

[0053] The two ends of the connector 9 are connected between the two end caps 6 and pass through the interior of the guide tube 3 along the axial direction of the main shaft 1. In this embodiment, the connector 9 is preferably a guide steel wire rope, which has the characteristics of good flexibility and high strength, and can provide reliable axial guidance for the suspension assembly 11 during insertion and installation after being tensioned axially inside the main shaft 1. The structure composed of the end caps 6 and the guide steel wire rope forms an axial guiding system, enabling the suspension assembly 11 to move axially without rotational deviation during installation.

[0054] Example 3

[0055] This embodiment further illustrates the specific structure of the suspension assembly 11 based on Embodiment 1.

[0056] like Figure 4 As shown, the suspension assembly 11 includes a fixing member with a through guide hole 13. The connector 9 in the guide assembly 2 passes through this guide hole 13, subjecting the suspension assembly 11 to axial guidance and constraint during installation and operation, and restricting its circumferential rotation. The fit between the guide hole 13 and the connector 9 ensures that the suspension assembly 11 can only slide axially along the main shaft 1 and cannot rotate freely in the circumferential direction, thus guaranteeing the controllability of the cable's position within the main shaft 1.

[0057] like Figure 5As shown, the fixing component is specifically a fixing block 12, which has a threaded mounting hole 14 for the cable to pass through. The cable passes through the mounting hole 14 and is fixed to the fixing block 12 by a subsequent clamping mechanism. The mounting hole 14 is threaded for screwing into the cable clamping connector 16.

[0058] The suspension assembly 11 also includes a cable clamping connector 16, which is screwed to the upper and lower ends of the fixing block 12. Each fixing block 12 has a cable clamping connector 16 at the top and bottom, which clamps and fixes the cable passing through the fixing block 12 from the upper and lower directions, so that the cable is stably fixed on the suspension assembly 11.

[0059] The suspension connector 22 includes a steel wire rope and an eye bolt 21. The eye bolt 21 is mounted on the fixing block 12 and is used to connect the suspension connector 22. Two adjacent suspension assemblies 11 are connected end to end by their respective eye bolts 21 and suspension connectors 22 (such as suspension steel wire ropes) to form a series suspension chain structure.

[0060] In a preferred embodiment, a graphite sleeve 15 is installed inside the guide hole 13. The graphite sleeve 15 has a through hole for the connector 9 to pass through, and the graphite sleeve 15 is slidably engaged with the connector 9. During the installation process of the suspension assembly 11 being inserted into the guide assembly 2, the suspension assembly 11 slides along the connector 9, and the graphite sleeve 15 plays a role in reducing friction and providing protection during this process.

[0061] Graphite material possesses self-lubricating properties and excellent wear resistance. During the long-term rotation of the main shaft 1, slight relative movement may occur between the suspension assembly 11 and the connecting member 9 due to vibration. The graphite sleeve 15 effectively reduces friction and prevents wear on the surface of the connecting member 9 (such as the guide wire rope), extending the service life of the device. Simultaneously, the sliding fit between the graphite sleeve 15 and the connecting member 9 ensures that the suspension assembly 11 can be smoothly installed axially, reducing the operational difficulty of the threaded installation.

[0062] Furthermore, the mounting holes 14 are designed with an axisymmetric structure, meaning they are symmetrically distributed relative to the central axis of the fixing block 12. This ensures that the distribution of cables passing through the fixing block 12 is also axisymmetric. When multiple suspension assemblies 11 are arranged axially within the main shaft 1, the mass distribution of each cable segment is symmetrical relative to the axis of the main shaft 1. This ensures that the combined center of gravity of the main shaft 1 and the cables after cable routing is located on or as close as possible to the axis of the main shaft 1. This design effectively avoids introducing additional unbalanced mass after cable routing, ensuring the balance quality of the rotor with cables and reducing abnormal vibrations during the operation of rotating machinery.

[0063] The suspension connector 22 includes a steel wire rope and eye bolts 21. The length of each steel wire rope segment is less than the length of the corresponding cable segment between two adjacent suspension components 11. After all suspension components 11 are inserted into the main shaft 1 and connected end-to-end by the steel wire rope, each cable segment hangs in a slightly curved arc between adjacent suspension components 11, while the steel wire rope is under tension and bears the weight of each suspension component 11 and the cable segment. Because the length of the steel wire rope is shorter than the length of the cable segment, the weight of the cable is transferred to the steel wire rope through the suspension component 11, and the cable itself does not bear axial tension, thus avoiding the risk of the cable being pulled and broken under its own weight.

[0064] Example 4

[0065] This embodiment, based on embodiment three, further explains the specific structure and working principle of the cable clamping connector 16.

[0066] like Figure 6 As shown, the cable clamping connector 16 comprises three parts: a connector body 17, a nylon ring 18, and a nut 20. The connector body 17 is the main body of the clamping connector, and its outer surface is provided with external threads, which are used to install it onto the threaded hole of the fixing block 12. The connector body 17 has a stop inside for accommodating and positioning the nylon ring 18.

[0067] The nylon ring 18 is an annular structure with a notch 19 around its circumference. The notch 19 is arranged along the circumference of the nylon ring 18, allowing the nylon ring 18 to undergo inward flexible deformation under radial pressure. The inner hole of the nut 20 and the outer circle of the nylon ring 18 are both conical, forming a conical mating surface. The nylon ring 18 is installed in a stop inside the connector body 17, and the nut 20 is screwed in from one end of the connector body 17.

[0068] In use, as the nut 20 is screwed deeper into the connector body 17, the tapered inner hole of the nut 20 gradually presses against the tapered outer circle of the nylon ring 18. Through this tapered fit, the axial screwing force is converted into a radially inward clamping force, causing the nylon ring 18 to undergo radially inward flexible deformation. This tightly clamps the cable passing through the center of the nylon ring 18, achieving a secure fixation of the cable within the connector body 17. This clamping method achieves clamping through the flexible deformation of the nylon material, providing sufficient clamping force to prevent cable slippage without damaging the cable's insulation layer due to rigid contact. It offers advantages such as reliable clamping, convenient assembly and disassembly, and no damage to the cable.

[0069] Example 5

[0070] The cable routing method provided in this embodiment is based on the above-mentioned routing device and includes the following steps:

[0071] Step S1: Install guide assembly 2 in the core of spindle 1.

[0072] First, place the conduit 3 in the center of the inner cavity of the spindle 1. Then, install the two end caps 6 on the upper and lower ends of the spindle 1 respectively. Fix the end caps 6 to the spindle 1 with bolts 10. The end caps 6 clamp and position the conduit 3 in the core of the spindle 1 through the stop.

[0073] Simultaneously, the two ends of the connector 9 (such as a guide wire rope) are respectively connected and fixed to the two end caps 6, so that the connector 9 is tensioned along the axial direction of the main shaft 1. After installation, the partition structure of the guide assembly 2 divides the internal space of the main shaft 1 into multiple independent areas.

[0074] Step S2: Insert the first type of cable 24 into the area corresponding to the partition structure of the guide component 2. The first type of cable 24 is a cable that does not require fixed support by the suspension component 11 (such as a thinner cable like a signal cable), and it is directly inserted into the space corresponding to the partition slot 5 of the conduit 3. Since the partition structure has divided the internal space of the spindle 1 into independent areas, the first type of cable 24 will not interfere with the subsequently inserted second type of cable 23 during the insertion process.

[0075] Step S3: Pre-install the second type of cable 23 onto each suspension component 11. The second type of cable 23 is a cable that needs to be fixed and supported by the suspension component 11 (such as a power supply cable or other thicker or heavier cable). Before inserting it into the spindle 1, first pass each section of the second type of cable 23 through the mounting through hole 14 on the fixing block 12 of the corresponding suspension component 11, and then clamp and fix the cable to the fixing block 12 through the cable clamping connector 16 to complete the pre-assembly of the cable and the suspension component 11.

[0076] Step S4: Insert each suspension assembly 11 pre-installed with the second type of cable 23 into the guide assembly 2 from one end of the main shaft 1.

[0077] The first suspension assembly 11 is inserted through the upper end of the main shaft 1. The graphite sleeve 15 on the suspension assembly 11 slides along the connector 9 and moves axially into the conduit 3 under the guidance of the connector 9. Subsequently, the second suspension assembly 11 is inserted and connected end to end to the first suspension assembly 11 by the eye bolt 21 and the suspension connector 22 (including the wire rope and the eye bolt 21). In this manner, all suspension assemblies 11 are inserted sequentially and connected in series by the suspension connectors 22.

[0078] Step S5: Fix the uppermost suspension assembly 11 and the lowermost suspension assembly 11 to the end caps 6 at both ends of the guide assembly 2 using connectors 9. After all suspension assemblies 11 are inserted into place, the lowermost suspension assembly 11 reaches the vicinity of the lower end cap 6 of the spindle 1 and is fixedly connected to the lower end cap 6 using connectors 9; the uppermost suspension assembly 11 is located near the upper end cap 6 of the spindle 1 and is also installed on the upper end cap 6 using connectors 9.

[0079] At this point, the threading and fixing of the second type of cable 23 is completed. Each cable segment is stably fixed inside the spindle 1 by the suspension assembly 11, and the suspension connector 22 bears the weight of the cable. The position of the cable inside the spindle 1 is controllable and stable.

[0080] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0082] Those skilled in the art should understand that the above embodiments are merely for illustrating the present invention and are not intended to limit the scope of the invention. Those skilled in the art can make other changes or modifications based on the above invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A cable threading device for the spindle of a vertical rotating machine, characterized in that, include: The guide assembly (2) is installed in the core of the main shaft (1). The guide assembly (2) has a partition structure that divides the internal space of the main shaft (1) into multiple independent areas. Multiple suspension assemblies (11) are sequentially arranged in the guide assembly (2) along the axial direction of the guide assembly (2), and the suspension assemblies (11) are used to fix the cable segment passing through the main shaft (1); Suspension connector (22) connects two adjacent suspension assemblies (11); The uppermost suspension assembly (11) and the lowermost suspension assembly (11) are both fixedly connected to the guide assembly (2) via connectors (9).

2. The cable threading device for the spindle of a vertical rotating machine according to claim 1, characterized in that, The guide assembly (2) includes a conduit (3) and an end cap (6). The two end caps (6) are respectively disposed at both ends of the main shaft (1). The conduit (3) is provided with the partition structure. The two ends of the conduit (3) are positioned and fixed to the core of the main shaft (1) through the end caps (6). The end caps (6) are used to position the conduit (3) at the core of the main shaft (1).

3. The cable threading device for the spindle of a vertical rotating machine according to claim 2, characterized in that, The conduit (3) includes a circular tube (4) and a partition groove (5) disposed outside the circular tube (4). The circular tube (4) and the partition groove (5) together isolate different types of cables in different areas. The end cap (6) is fixed to both ends of the main shaft (1) by bolts (10), and the guide tube (3) is clamped and positioned in the core of the main shaft (1) by a stop. The end cap (6) is provided with a waist-shaped hole (7) for the cable to pass through. The two ends of the connector (9) are connected between the two end caps (6).

4. The cable threading device for the spindle of a vertical rotating machine according to claim 1, characterized in that, The suspension assembly (11) includes a fixing member with a through guide hole (13) that fixes the cable to the suspension assembly (11). The connector (9) passes through the guide hole (13) and provides axial guidance and restricts the circumferential rotation of the suspension assembly (11) during installation and operation.

5. The cable threading device for the spindle of a vertical rotating machine according to claim 4, characterized in that, The fixing component is a fixing block (12), and the fixing block (12) is provided with a threaded mounting through hole (14) for the cable to pass through. The suspension assembly (11) also includes a cable clamping connector (16), which is screwed to the upper and lower ends of the fixing block (12) and clamps and fixes the cable.

6. The cable threading device for the spindle of a vertical rotating machine according to claim 5, characterized in that, A graphite sleeve (15) is installed inside the guide through hole (13). The graphite sleeve (15) has a through hole for the connector (9) to pass through. The graphite sleeve (15) and the connector (9) are slidably fitted together.

7. The cable threading device for the spindle of a vertical rotating machine according to claim 5, characterized in that, The cable clamping connector (16) includes a connector body (17), a nylon ring (18), and a nut (20); the nylon ring (18) is an annular structure with a notch (19) around its perimeter, and is installed in the stop inside the connector body (17); the inner hole of the nut (20) and the outer circle of the nylon ring (18) are both conical. In use, the tapered fit between the nut (20) and the nylon ring (18) causes the nylon ring (18) to undergo radial inward flexible deformation, clamping and fixing the cable inside the connector body (17).

8. The cable threading device for the spindle of a vertical rotating machine according to claim 5, characterized in that, The mounting through hole (14) is symmetrically arranged.

9. The cable threading device for the spindle of a vertical rotating machine according to claim 5, characterized in that, The suspension connector (22) includes a steel wire rope and a lifting eye screw (21). The length of each section of the steel wire rope is less than the length of the corresponding cable section between two adjacent suspension components (11). The lifting eye screw (21) is set on the fixing block (12) for connecting the steel wire rope.

10. A method for threading cables through the spindle of a vertical rotating machine, characterized in that, Based on the threading device as described in any one of claims 1-9, the threading method includes the following steps: S1. Install the guide assembly (2) in the core of the main shaft (1) and divide the internal space of the main shaft (1) into multiple independent areas through the partition structure of the guide assembly (2); S2. Insert the first type of cable (24) into the area corresponding to the partition structure of the guide component (2); S3. The second type of cable (23) is pre-installed on each of the suspension components (11); S4. Each of the suspension assemblies (11) pre-installed with the second type of cable (23) is sequentially inserted into the guide assembly (2) from one end of the main shaft (1), and adjacent suspension assemblies (11) are connected end to end by the suspension connector (22). S5. The uppermost suspension assembly (11) and the lowermost suspension assembly (11) are respectively fixed to the end caps (6) at both ends of the guide assembly (2) by the connector (9) to complete the threading and fixing of the second type of cable (23).

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