Horizontal hoisting tool for motor rotor

Abstract

The utility model belongs to the technical field of hoisting equipment, and discloses a horizontal hoisting tool for a motor rotor, which comprises a horizontal hoisting rail connected with hoisting equipment through a hoisting rope, an adjustable fixing device used for locking the rotor is mounted on the horizontal hoisting rail, the adjustable fixing device is fixed on the horizontal hoisting rail through a locking component, and the adjustable fixing device is fixed on the horizontal hoisting rail through the locking component. The two ends of the rotor are fixed to the adjustable fixing device through the pressing assemblies. The rotor transfer device is suitable for transfer work of rotors with different sizes and on a large scale, and it is guaranteed that the rotors are kept stable in the transfer process.

Description

Technical Field

[0001] This utility model relates to the field of hoisting equipment technology, and in particular to a horizontal hoisting fixture for motor rotors. Background Technology

[0002] In recent years, high-speed motors such as magnetic levitation motors have been rapidly developed and iterated, and their applications have become increasingly widespread.

[0003] The rotors of high-speed motors are generally very precise and the manufacturing process is very complicated. When these motor rotors are mass-produced, the transfer of the motor rotors in each processing stage needs to ensure the stable hoisting of the rotors. For example, when the rotor is packed for transport or when the rotor is dynamically balanced using a horizontal dynamic balancing machine, the rotor axis needs to be kept horizontal. Smaller rotors are usually placed manually, while larger rotors are simply hoisted using a crane and slings. However, this type of transport is not very secure and is not suitable for the transfer of large quantities of rotors.

[0004] The lifting balance beam and lifting device proposed in the utility model patent with patent application number 202320441455.1 are designed for skid-mounted components in the petrochemical industry; the lifting device and lifting system proposed in the utility model patent with patent application number 202122039113.0 are designed for the assembly of crane turntable and slewing bearing. Both are transfer structures designed for corresponding equipment and are not suitable for transferring motor rotors. Utility Model Content

[0005] The main technical problem to be solved by this utility model is to provide a horizontal lifting fixture for motor rotors, which is suitable for the transfer of rotors of different sizes and in large batches, and ensures that the rotor remains stable during the transfer process.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A horizontal lifting fixture for an electric motor rotor includes a horizontal lifting rail connected to a lifting device via a lifting rope. An adjustable fixing device for locking the rotor is installed on the horizontal lifting rail. The adjustable fixing device is fixed to the horizontal lifting rail by a locking assembly. Both ends of the rotor are fixed to the adjustable fixing device by a clamping assembly.

[0008] The following are further optimizations of the above technical solution by this utility model:

[0009] The adjustable fixing device includes two vertically arranged fixed slide rods. The upper end of the fixed slide rod is slidably installed on the horizontal hanging rail along the length direction of the horizontal hanging rail. The locking component is set between the upper end of the fixed slide rod and the horizontal hanging rail. The inner wall of the lower end of the fixed slide rod is provided with a fixing groove. The two ends of the rotor are respectively inserted into the corresponding fixing grooves. The pressing component is set at the lower end of the fixed slide rod.

[0010] Further optimization: The locking assembly includes a locking wedge block with an inclined bottom surface, a sliding cavity extending through the upper end of the fixed slide rod along the sliding direction, and the lower end of the horizontal hanging rail passing through the sliding cavity. The locking wedge block is located below the horizontal hanging rail and is slidably installed inside the sliding cavity along the width direction of the horizontal hanging rail. The locking wedge block and the bottom wall of the sliding cavity are in inclined surface fit. A sliding locking threaded component is threadedly installed on the fixed slide rod along the sliding direction of the locking wedge block. The sliding locking threaded component is located on one side of the bottom wall of the sliding cavity that is offset from its position. One end of the sliding locking threaded component that extends into the sliding cavity is pressed against the side of the locking wedge block.

[0011] Further optimization: The locking wedge block has an insertion groove on the side near the sliding locking threaded part, and the end of the sliding locking threaded part near the locking wedge block is inserted into the insertion groove.

[0012] Further optimization: The clamping assembly includes a clamping rod extending along the width direction of the horizontal hanging rail. The clamping rod is located at the upper end inside the fixing groove. The two side walls of the fixing groove are respectively provided with first vertical strip holes. Both ends of the clamping rod extend out of the side wall of the fixing slide rod through the first vertical strip holes. One end of the clamping rod extending out of the fixing slide rod has a nut, and the other end of the clamping rod extending out of the fixing slide rod is threaded with a first nut. The nut and the first nut are respectively clamped to the two side walls of the fixing slide rod.

[0013] Further optimization: The bottom wall of the fixing groove is V-shaped.

[0014] Further optimization: The lower end of the fixed slide bar is provided with an anti-detachment component to prevent the rotor from detaching from the fixed groove.

[0015] Further optimization: The anti-detachment component includes a protective rod extending along the length of the horizontal suspension rail. A second vertical strip hole is provided through the rear wall of the fixing groove. One end of the protective rod extends into the fixing groove through the second vertical strip hole. The end of the protective rod extending into the fixing groove is inserted into a threaded hole on the end face of the rotor shaft. A limiting ring is fixed on the protective rod and pressed against the rear wall of the fixing groove. A second nut is threaded onto the other end of the protective rod and is pressed against the outer wall of the fixing slide rod.

[0016] Further optimization: Lifting rings are fixedly installed at both ends of the top of the horizontal lifting rail, and the end of the lifting rope away from the lifting equipment passes through the lifting ring.

[0017] Further optimization: The horizontal suspension rail is an I-beam shaped steel rail.

[0018] The present invention adopts the above technical solution and has the following beneficial effects:

[0019] 1. The present invention adopts the above-mentioned technical solution, which is ingenious in conception and reasonable in structure. It realizes the horizontal hoisting of the motor rotor through the horizontal hanging rail and the adjustable fixing device, which has high fixing reliability and can maintain the horizontal state of the rotor during the transfer process. It is suitable for the transfer of large batches of rotors.

[0020] 2. The fixing spacing of the adjustable fixing device can be adjusted as needed to adapt to the transfer work of rotors of different sizes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 for Figure 1 Front view diagram;

[0024] Figure 3 for Figure 2 Schematic sectional view along the middle AA direction;

[0025] Figure 4 for Figure 3 Enlarged view of the structure at point B;

[0026] Figure 5 for Figure 2 A left-view diagram;

[0027] Figure 6 for Figure 5 Cross-sectional view along the CC direction;

[0028] Figure 7 for Figure 6 Enlarged view of the structure at point D.

[0029] In the diagram: 1. Lifting rope; 2. Horizontal lifting rail; 21. Lifting ring; 3. Adjustable fixing device; 31. Fixed slide bar; 311. Slide cavity; 32. Fixed groove; 321. First vertical strip hole; 322. Second vertical strip hole; 4. Rotor; 5. Locking assembly; 51. Locking wedge; 511. Insertion groove; 52. Locking threaded part; 6. Pressing assembly; 61. Pressing rod; 62. Nut; 63. First nut; 7. Anti-detachment assembly; 71. Protective rod; 72. Limiting ring; 73. Second nut. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] like Figures 1-7 As shown in the figure, a horizontal lifting fixture for an electric motor rotor includes a horizontal lifting rail 2 connected to a lifting device (not shown in the figure) via a lifting rope 1. An adjustable fixing device 3 for locking the rotor 4 is installed on the horizontal lifting rail 2. The adjustable fixing device 3 is fixed to the horizontal lifting rail 2 by a locking assembly 5. Both ends of the rotor 4 are fixed to the adjustable fixing device 3 by a clamping assembly 6.

[0033] In this embodiment, the horizontal hanging rail 2 is arranged perpendicularly to the adjustable fixing device 3, so that after the fixing work is completed, the axis of the rotor 4 can always be kept horizontal.

[0034] In this embodiment, the lifting equipment can be commercially available cranes such as bridge cranes, gantry cranes, and balance cranes.

[0035] like Figures 1-3 As shown, the adjustable fixing device 3 includes two vertically arranged fixed slide rods 31. The upper end of the fixed slide rod 31 is slidably installed on the horizontal hanging rail 2 along the length direction of the horizontal hanging rail 2. The locking component 5 is arranged between the upper end of the fixed slide rod 31 and the horizontal hanging rail 2. The inner wall of the lower end of the fixed slide rod 31 is provided with a fixing groove 32. The two ends of the rotor 4 are respectively inserted into the corresponding fixing grooves 32. The pressing component 6 is arranged at the lower end of the fixed slide rod 31.

[0036] In this embodiment, the process for disassembling and assembling rotor 4 is as follows:

[0037] S1. Use lifting equipment to move the horizontal lifting fixture to the placement position of rotor 4;

[0038] S2. Operate the clamping assembly 6 to unlock one end of the rotor 4 on the horizontal hoisting fixture in the vertical direction;

[0039] S3. The locking assembly 5 is used to unlock the fixed slide bar 31 corresponding to the unlocking end of the rotor 4 in the horizontal direction.

[0040] S4. Push the fixed slide bar 31 on the horizontal hanging rail 2 to move away from the other fixed slide bar 31, increase the distance between the two fixed grooves 32, and make the unlocked end of the rotor 4 disengage from the fixed groove 32.

[0041] S5. Operate the clamping assembly 6 to unlock the other end of the rotor 4, and then the other end of the rotor 4 can be removed from the fixing groove 32.

[0042] S6. After completing the disassembly of rotor 4, use the lifting equipment to move the horizontal lifting fixture to the initial transfer position of rotor 4.

[0043] S7. Insert one end of the rotor 4 into the fixing groove 32 of one of the fixing slide rods 31, and operate the clamping assembly 6 to clamp and fix the end of the rotor 4.

[0044] S8. Push the other fixed slide bar 31 closer to the rotor 4 and insert the other end of the rotor 4 into the corresponding fixed groove 32;

[0045] S9. The locking assembly 5 is operated to lock the fixed slide bar 31, thereby locking the position.

[0046] S10. Operate the clamping assembly 6 to clamp and fix the other end of the rotor 4.

[0047] Then, by continuously repeating the above steps S1-S10, the rotor 4 is continuously transferred, thus making it suitable for reliable and stable transfer of a large number of rotors 4.

[0048] It should also be noted that if the rotor model is being continuously transferred, only one of the fixed slide bars 31 needs to be unlocked; conversely, if the model of the rotor to be transferred changes, the positions of the two fixed slide bars 31 need to be readjusted.

[0049] like Figure 1 , Figure 3 and Figure 4As shown, the locking assembly 5 includes a locking wedge 51 with an inclined bottom surface, a sliding cavity 311 extending through the upper end of the fixed slide rod 31 along the sliding direction, and the lower end of the horizontal hanging rail 2 passing through the sliding cavity 311. The locking wedge 51 is located below the horizontal hanging rail 2 and is slidably installed inside the sliding cavity 311 along the width direction of the horizontal hanging rail 2. The locking wedge 51 and the bottom wall of the sliding cavity 311 are in inclined surface fit. A locking threaded part 52 is threadedly installed on the fixed slide rod 31 along the sliding direction of the locking wedge 51. The locking threaded part 52 is located on the side of the bottom wall of the sliding cavity 311 that is offset from the position. One end of the locking threaded part 52 extending into the sliding cavity 311 is pressed against the side of the locking wedge 51.

[0050] In this embodiment, the locking threaded component 52 can be a square head bolt, and the square head bolt and the fixing slide bar 31 are threaded together.

[0051] like Figure 4 As shown, the locking wedge block 51 has an insertion groove 511 on one side of the locking threaded part 52, and one end of the locking threaded part 52 near the locking wedge block 51 is inserted into the insertion groove 511.

[0052] In this embodiment, the operation procedure for locking the fixed slide rod 31 using the locking assembly 5 is as follows: the locking thread 52 is turned outward so that the end of the locking thread 52 is disengaged from the side wall of the locking inclined block 51, so that the locking inclined block 51 has a movable allowance in the width direction of the horizontal hanging rail 2. At this time, the fixed slide rod 31 can slide along the length direction of the horizontal hanging rail 2.

[0053] Conversely, the operation procedure for unlocking the fixed slide bar 31 using the locking assembly 5 is as follows: the locking thread 52 is turned inward, the end of the locking thread 52 gradually approaches the side wall of the locking wedge 51 and is inserted into the insertion groove 511, and the locking wedge 51 is pushed to slide to the other side. The top wall of the locking wedge 51 is tightly engaged with the bottom wall of the horizontal hanging rail 2, and the bottom wall of the locking wedge 51 is tightly engaged with the bottom wall of the slide cavity 311. Therefore, the locking wedge 51 no longer has any room for movement in the width direction of the horizontal hanging rail 2, thus realizing the mutual locking between the horizontal hanging rail 2 and the fixed slide bar 31.

[0054] like Figure 1 , Figures 5-7As shown, the clamping assembly 6 includes a clamping rod 61 extending along the width direction of the horizontal hanging rail 2. The clamping rod 61 is located at the upper end inside the fixing groove 32. The two side walls of the fixing groove 32 are respectively provided with first vertical slots 321. Both ends of the clamping rod 61 extend out of the side wall of the fixing slide rod 31 through the first vertical slots 321. One end of the clamping rod 61 extending out of the fixing slide rod 31 has a nut 62, and the other end of the clamping rod 61 extending out of the fixing slide rod 31 is threaded with a first nut 63. The nut 62 and the first nut 63 are respectively clamped to the two side walls of the fixing slide rod 31.

[0055] like Figure 3 As shown, the bottom wall of the fixing groove 32 is V-shaped.

[0056] In this embodiment, the V-shaped fixing groove 32 on the bottom wall allows the shaft heads of two rotors with large size differences to be clamped and fixed in the fixing groove 32. Therefore, this utility model can be applied to the transfer work of rotors 4 of different sizes.

[0057] In this embodiment, the clamping rod 61 can be made of commercially available bolts.

[0058] In this embodiment, the operation procedure for unlocking the shaft head of the rotor 4 using the clamping assembly 6 is as follows: the first nut 63 is turned outward, the first nut 63 and the nut 62 are disengaged from the side wall of the fixed slide bar 31, so that the clamping rod 61 has a certain distance of movement in the vertical direction. At this time, the rotor 4 loses the clamping force applied to its shaft head in the radial direction by the clamping rod 61, and thus can be dislodged from the fixed groove 32.

[0059] Conversely, the operation procedure for clamping and fixing the shaft head of the rotor 4 using the clamping assembly 6 is as follows: insert the shaft head of the rotor 4 into the fixing groove 32, press the shaft head of the rotor 4 against the V-shaped bottom wall of the fixing groove 32, then press the clamping rod 61 above the shaft head, and tighten the first nut 63 so that the first nut 63 and the nut 62 are respectively pressed against the two side walls of the fixing slide rod 31. The clamping rod 61 and the V-shaped bottom wall of the fixing groove 32 cooperate to lock the shaft head of the rotor 4, preventing the rotor 4 from moving radially and improving the stability of the rotor 4 during transportation.

[0060] like Figures 1-7 As shown, lifting rings 21 are fixedly installed at both ends of the top of the horizontal rail 2, and the end of the lifting rope 1 away from the lifting equipment passes through the lifting rings 21.

[0061] The horizontal suspension rail 2 is an I-beam steel rail.

[0062] In this embodiment, the horizontal hanging rail 2 and the inner wall of the sliding cavity 311 are fitted together by a concave-convex structure, so that the fixed sliding rod 31 can only slide along the length direction of the horizontal hanging rail 2.

[0063] Example 2

[0064] This embodiment is basically the same as Embodiment 1, except that:

[0065] like Figures 1-7 As shown, the lower end of the fixed slide bar 31 is provided with an anti-detachment component 7 to prevent the rotor 4 from detaching from the fixed groove 32.

[0066] In this embodiment, the anti-detachment component 7 prevents the rotor 4 from coming loose from the fixing groove 32.

[0067] like Figure 1 , Figures 5-7 As shown in the figure, the anti-detachment component 7 includes a protective rod 71 that extends along the length of the horizontal hanging rail 2, and the protective rod 71 is coaxially arranged with the rotor 4.

[0068] The rear wall of the fixing groove 32 has a second vertical strip hole 322 through which one end of the protective rod 71 extends into the fixing groove 32 through the second vertical strip hole 322. The second vertical strip hole 322 is designed to accommodate rotors 4 of different sizes.

[0069] Furthermore, one end of the protective rod 71 extends into the fixed groove 32 and is inserted into the threaded hole on the end face of the rotor 4 shaft. A limiting ring 72 is fixed on the protective rod 71 and pressed against the rear wall of the fixed groove 32. The other end of the protective rod 71 is threaded with a second nut 73, which is pressed against the outer wall of the fixed slide rod 31.

[0070] In this embodiment, the limiting ring 72 and the second nut 73 are used together to lock the position of the protective rod 71.

[0071] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A horizontal lifting fixture for an electric motor rotor, characterized in that, The system includes a horizontal suspension rail (2) connected to the lifting equipment via a suspension rope (1). An adjustable fixing device (3) for locking the rotor (4) is installed on the horizontal suspension rail (2). The adjustable fixing device (3) is fixed on the horizontal suspension rail (2) by a locking assembly (5). Both ends of the rotor (4) are fixed to the adjustable fixing device (3) by a clamping assembly (6).

2. The horizontal lifting fixture for a motor rotor according to claim 1, characterized in that, The adjustable fixing device (3) includes two vertically arranged fixed slide rods (31). The upper end of the fixed slide rod (31) is slidably installed on the horizontal hanging rail (2) along the length direction of the horizontal hanging rail (2). The locking component (5) is set between the upper end of the fixed slide rod (31) and the horizontal hanging rail (2). The inner wall of the lower end of the fixed slide rod (31) is provided with a fixing groove (32). The two ends of the rotor (4) are respectively inserted into the corresponding fixing grooves (32). The pressing component (6) is set at the lower end of the fixed slide rod (31).

3. The horizontal lifting fixture for a motor rotor according to claim 2, characterized in that, The locking assembly (5) includes a locking wedge (51) with an inclined bottom surface. The upper end of the fixed slide rod (31) is provided with a slide cavity (311) along the sliding direction. The lower end of the horizontal hanging rail (2) passes through the slide cavity (311). The locking wedge (51) is located below the horizontal hanging rail (2) and is slidably installed inside the slide cavity (311) along the width direction of the horizontal hanging rail (2). The locking wedge (51) and the bottom wall of the slide cavity (311) are in inclined fit. A locking threaded part (52) is threadedly installed on the fixed slide rod (31) along the sliding direction of the locking wedge (51). The locking threaded part (52) is located on the side of the bottom wall of the slide cavity (311) that is offset. One end of the locking threaded part (52) that extends into the slide cavity (311) is pressed against the side of the locking wedge (51).

4. The horizontal lifting fixture for a motor rotor according to claim 3, characterized in that, The locking wedge block (51) has an insertion groove (511) on one side of the locking threaded part (52), and one end of the locking threaded part (52) near the locking wedge block (51) is inserted into the insertion groove (511).

5. A horizontal lifting fixture for a motor rotor according to claim 2, characterized in that, The clamping assembly (6) includes a clamping rod (61) extending along the width direction of the horizontal hanging rail (2). The clamping rod (61) is located at the upper end inside the fixing groove (32). The two side walls of the fixing groove (32) are respectively provided with first vertical slots (321). Both ends of the clamping rod (61) extend out of the side wall of the fixing slide rod (31) through the first vertical slots (321). One end of the clamping rod (61) extending out of the fixing slide rod (31) has a nut (62). The other end of the clamping rod (61) extending out of the fixing slide rod (31) is threaded with a first nut (63). The nut (62) and the first nut (63) are respectively clamped on the two side walls of the fixing slide rod (31).

6. The horizontal lifting fixture for a motor rotor according to claim 5, characterized in that, The bottom wall of the fixing groove (32) is V-shaped.

7. The horizontal lifting fixture for a motor rotor according to claim 2, characterized in that, The lower end of the fixed slide bar (31) is provided with an anti-detachment component (7) to prevent the rotor (4) from detaching from the fixed groove (32).

8. The horizontal lifting fixture for a motor rotor according to claim 7, characterized in that, The anti-detachment component (7) includes a protective rod (71) extending along the length of the horizontal hanging rail (2). A second vertical strip hole (322) is provided through the rear wall of the fixing groove (32). One end of the protective rod (71) extends into the fixing groove (32) through the second vertical strip hole (322). The end of the protective rod (71) extending into the fixing groove (32) is inserted into the threaded hole on the end face of the rotor (4) shaft. A limiting ring (72) is fixed on the protective rod (71) and pressed against the rear wall of the fixing groove (32). A second nut (73) is threaded onto the other end of the protective rod (71). The second nut (73) is pressed against the outer wall of the fixing slide rod (31).

9. A horizontal lifting fixture for a motor rotor according to claim 2, characterized in that, The top two ends of the horizontal rail (2) are fixedly installed with lifting rings (21), and the end of the lifting rope (1) away from the lifting equipment passes through the lifting ring (21).

10. A horizontal lifting fixture for a motor rotor according to claim 2, characterized in that, The horizontal hanging rail (2) is an I-beam steel rail.

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