A device for enhancing the safety factor during rotor lifting operation

Abstract

The present invention belongs to the technical field of mechanical equipment. Specifically, it is a device for enhancing the safety factor during the operation of lifting a rotor, including a lifting device. The lifting device includes a lifting hook. The outer ring surface of the lifting hook is provided with a wire rope. One end of the wire rope is fixedly connected to a dynamometer, and the other end of the dynamometer is fixedly connected to a hand hoist. The two sets of sliding blocks move synchronously toward the middle of the bidirectional screw and drive the remaining mechanisms to move synchronously while moving, thereby limiting the lifted weight, thereby preventing the weight from swinging in the air and reducing the risk of collision with surrounding buildings or construction workers. Secondly, when the rotating plate disengages from the positioning column, the side with teeth will face downward, and the limit plate fixed on the guide column will flip to the top of the shoulder pole, thereby reducing accidental collision or friction of the limit plate during storage, thereby extending the service life of the limit plate.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical equipment, in particular to a device for enhancing the safety factor during the operation of lifting a rotor. Background Art

[0002] The device that enhances the safety factor during the lifting rotor operation is a combination of safety devices of the lifting equipment, mainly including lifting height limiter, lifting weight limiter, deflection adjustment and display device and non-contact sensor safety device, etc. These devices can limit the height and weight of the lifting equipment, prevent excessive deflection, monitor and avoid collision with obstacles in real time, thereby effectively ensuring the safety of the lifting rotor operation.

[0003] In the existing technology, during lifting, a special lifting device is firmly connected to the heavy object, and a balance adjustment mechanism is used to keep the rotor in a horizontal state. During the lifting process, the safety monitoring device collects data such as force conditions, lifting height, speed, etc. in real time. Once the data is abnormal, such as the force exceeds the safety range or the lifting speed is abnormal, an alarm will be issued immediately. At the same time, the safety braking system will be on standby at any time. When an emergency occurs, such as abnormal shaking or excessive descent, the braking system will respond quickly to suspend the lifting process to avoid safety accidents such as falling and collision of heavy objects. The lifting operation will not be continued until the abnormal situation is eliminated.

[0004] There are still some problems with the above solution in actual application. When the equipment completes the preparatory work before lifting, the heavy object will be gradually lifted into the air as the machine is pulled up. When the heavy object is lifted into the air, it will shake due to factors such as wind, and the shaking will cause the center of gravity of the heavy object to shift, so that it is no longer located on the support point of the sling or sling. When the center of gravity shifts to a certain extent, the heavy object will lose balance, thereby increasing the risk of slipping. Secondly, the added limit clamping mechanism will directly contact the ground when stored after work, and contact with the ground will be more susceptible to collisions from external factors. In daily warehouse activities, such as forklifts carrying other goods and people walking around, the device will be accidentally hit. This collision will cause the device to deform and damage, thereby affecting its limit function.

[0005] To this end, the present invention provides a device for enhancing the safety factor during the operation of lifting a rotor. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the device for enhancing the safety factor during the operation of lifting a rotor described in the present invention includes a lifting device, the lifting device includes a lifting hook, the outer ring surface of the lifting hook is provided with a steel wire rope, one end of the steel wire rope is fixedly connected to a tension meter, the other end of the tension meter is fixedly connected to a hand chain hoist, the other end of the hand chain hoist is fixedly connected to a shoulder pole, a hook fixing hole is opened inside the shoulder pole, a hook fixing pin is inserted into the hook fixing hole, the outer ring surface of the steel wire rope is provided with a main lifting rope, and a reciprocating limit mechanism is provided at the bottom of the lifting device;

[0008] The reciprocating limiting mechanism includes a fixed shell fixedly arranged on the side of the shoulder pole, a groove is opened inside the fixed shell, and a sliding block is slidably arranged in the groove of the fixed shell. There are two groups of sliding blocks. The relative sliding of the two groups of sliding blocks can limit the side of the lifted heavy object, avoiding the center of gravity shift during lifting, thereby improving the safety of the device.

[0009] Preferably, the side wall of the groove of the fixed shell is fixedly connected to an external driving source, the output shaft of the external driving source is fixedly connected to a bidirectional screw, the outer ring surface of the bidirectional screw is threadedly connected to a sliding block, a limiting rod is provided inside the sliding block, the sliding block is slidably connected to the outer ring surface of the limiting rod, and the side wall of the lower part of the fixed shell is fixedly connected to a first guide block.

[0010] Preferably, the two groups of sliding blocks are both arranged on the bidirectional screw. When the bidirectional screw rotates, it will drive the two groups of sliding blocks to move synchronously, and move linearly through the guidance of the limit rod, so that the two groups of sliding blocks move synchronously toward the middle of the bidirectional screw, and then can limit the heavy objects, thereby improving the safety of the device.

[0011] Preferably, a rotational offset mechanism for flipping is provided on the side of the reciprocating limiting mechanism, and the rotational offset mechanism includes an L-shaped fixing plate, and the L-shaped fixing plate is fixedly connected to the side wall of the sliding block.

[0012] Preferably, the L-shaped fixed plate consists of a vertical plate and a horizontal plate, the side of the vertical plate of the L-shaped fixed plate is fixedly connected to a second guide block, the inside of the horizontal plate of the L-shaped fixed plate is fixedly connected to an electric cylinder, the output end of the electric cylinder is fixedly connected to a connecting block, the inside of the connecting block is rotatably connected to a guide column, the outer ring surface of the guide column is fixedly connected to a rotating plate, and the side of the rotating plate close to the outer ring surface is fixedly connected to a sliding column.

[0013] Preferably, the setting of the second guide block can make the connecting block move linearly, and then drive the rotating plate to move linearly. The rotating plate is provided with teeth on one side, and the setting of the rotating plate teeth can drive the components to flip over, avoiding inconvenience in storage.

[0014] Preferably, a first limiting groove is formed through the vertical plate of the L-shaped fixing plate, an arc groove is formed on the side surface of the vertical plate of the L-shaped fixing plate, and a positioning column is fixedly connected to the side surface of the vertical plate of the L-shaped fixing plate.

[0015] Preferably, the first limiting groove and the arc groove are connected, and the locking columns are provided in multiple groups and are adapted to the teeth provided on one side of the rotating plate.

[0016] Preferably, a fixed block is fixedly connected to a side surface of the sliding block, a second limiting groove is opened on the side surface of the fixed block, and a sliding block is slidably connected inside the second limiting groove.

[0017] Preferably, a connecting column is fixedly connected to the interior of the sliding block, and the outer ring surface of the other end of the connecting column is rotatably connected to a limit plate.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The device for enhancing the safety factor during the operation of the lifting rotor described in the present invention, when it is necessary to lift a heavy object, start the external driving source, at this time the output shaft of the external driving source will drive the bidirectional screw fixed to it to rotate, and at the same time drive the two groups of sliding blocks threadedly connected to it to move synchronously, because the sliding blocks slide on the outer ring surface of the limit rod, and both ends of the limit rod are fixed on the side walls of the groove of the fixed shell, so when the bidirectional screw rotates, the two groups of sliding blocks move synchronously toward the middle of the bidirectional screw, and at the same time drive the remaining mechanisms to move synchronously, thereby limiting the lifted heavy object, and then preventing the heavy object from swinging in the air, reducing the risk of collision with surrounding buildings or construction workers.

[0020] When the guide post is disengaged from the locking post, the side with the teeth faces downward, and the limit plate fixed on the guide post will flip over to the top of the shoulder pole, thereby reducing accidental collision or friction of the limit plate during storage, thereby extending the service life of the limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear perspective structure of the overall device shown in the present invention;

[0024] Figure 3 This is a schematic diagram of the position structure of the hook fixing pin and the hook fixing hole shown in the present invention;

[0025] Figure 4 It is a schematic structural diagram of the reciprocating limit mechanism and the rotation offset mechanism shown in the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the reciprocating limiting mechanism shown in the present invention;

[0027] Figure 6 This is a front perspective structural diagram of the rotational offset mechanism shown in the present invention;

[0028] Figure 7 The present invention shows Figure 6 A in the middle is an enlarged structural diagram;

[0029] Figure 8 This is a rear perspective structural diagram of the rotational offset mechanism of the present invention;

[0030] Figure 9 The present invention shows Figure 8 The enlarged structural diagram at B in the middle;

[0031] In the figure: 1. Lifting equipment; 101. Lifting hook; 102. Wire rope; 103. Tension gauge; 104. Hand chain hoist; 105. Shoulder pole; 106. Hook fixing hole; 107. Hook fixing pin; 108. Main lifting rope;

[0032] 2. Reciprocating limit mechanism; 201. Fixed housing; 202. External drive source; 203. Bidirectional screw; 204. Sliding block; 205. Limit rod; 206. First guide block;

[0033] 3. Rotational offset mechanism; 301. L-shaped fixing plate; 302. Second guide block; 303. Electric cylinder; 304. Connecting block; 305. First limiting groove; 306. Arc groove; 307. Positioning column; 308. Guide column; 309. Rotational plate; 310. Sliding column; 311. Fixing block; 312. Second limiting groove; 313. Sliding block; 314. Connecting column; 315. Limiting plate. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] Example 1

[0036] like Figures 1 to 9 As shown, an apparatus for enhancing the safety factor during the operation of lifting a rotor according to an embodiment of the present invention comprises a lifting device 1, wherein the lifting device 1 comprises a lifting hook 101, wherein the outer annular surface of the lifting hook 101 is provided with a steel wire rope 102, wherein one end of the steel wire rope 102 is fixedly connected to a dynamometer 103, wherein the other end of the dynamometer 103 is fixedly connected to a hand chain hoist 104, wherein the other end of the hand chain hoist 104 is fixedly connected to a shoulder pole 105, wherein a hook fixing hole 106 is provided inside the shoulder pole 105, wherein a hook fixing pin 107 is inserted into the hook fixing hole 106, wherein the outer annular surface of the steel wire rope 102 is provided with a main lifting rope 108, and a reciprocating limiting mechanism 2 is provided at the bottom of the lifting device 1;

[0037] The reciprocating limiting mechanism 2 includes a fixed shell 201 fixedly arranged on the side of the shoulder pole 105. A groove is opened inside the fixed shell 201. A sliding block 204 is slidably set in the groove of the fixed shell 201. There are two groups of sliding blocks 204. The relative sliding of the two groups of sliding blocks 204 can limit the side of the lifted heavy object, avoiding the center of gravity shift during lifting, thereby improving the safety of the device.

[0038] Specifically, when the equipment completes the preparatory work before lifting, the heavy object will be gradually lifted into the air as the machine is pulled up. When the heavy object is lifted into the air, it will shake due to factors such as wind. This shaking will cause the center of gravity of the heavy object to shift, so that it is no longer located at the support point of the sling or spreader. When the center of gravity shifts to a certain extent, the heavy object will lose balance, thereby increasing the risk of slipping.

[0039] Therefore, the present invention solves this problem by setting a corresponding structure. The device of the present invention is a device for enhancing the safety factor during the operation of lifting the rotor. When it is necessary to lift a heavy object, the staff will put the main lifting rope 108 and the wire rope 102 onto the wire rope 102, and at the same time install the dynamometer 103 and the hand chain hoist 104 in sequence, and connect them to the shoulder pole 105 through the hook. At this time, the heavy object is hung on the two sets of hooks at the bottom of the shoulder pole 105 through the rope, and pay attention to the pointer indication scale of the dynamometer 103 during the adjustment process using the hand chain hoist 104, so that the pointer scales of the dynamometers 103 on both sides are consistent within the safety range, so that the shoulder pole 105 is kept level, and the hook fixing pin 107 is adjusted according to the center of gravity of the heavy object and inserted into any set of hook fixing holes 1 06 to adjust the position of the hook so that the center of gravity of the entire hoisted object is concentrated on the main wire rope directly below the main hook, ensuring the safety of the lifting operation. However, as the equipment completes the preparatory work before lifting, the heavy object will be gradually lifted into the air as the machine is pulled. When the heavy object is lifted into the air, it will shake due to the influence of factors such as wind, and the shaking will cause the center of gravity of the heavy object to shift, so that it is no longer located on the support point of the sling or sling. When the center of gravity shifts to a certain extent, the heavy object will lose balance, thereby increasing the risk of slipping. At this time, the relative movement of the sliding block 204 sliding inside the fixed shell 201 fixed on both sides of the shoulder pole 105 can limit the lifted heavy object, avoid the center of gravity shift during lifting, and thereby improve the safety of the device.

[0040] Example 2

[0041] like Figures 1 to 9 As shown in Comparative Example 1, another embodiment of the present invention is:

[0042] like Figure 5 As shown, the side wall of the groove of the fixed shell 201 in this embodiment is fixedly connected to the external driving source 202, the output shaft of the external driving source 202 is fixedly connected to the bidirectional screw 203, the outer ring surface of the bidirectional screw 203 is threadedly connected to the sliding block 204, a limiting rod 205 is provided inside the sliding block 204, the sliding block 204 is slidably connected to the outer ring surface of the limiting rod 205, and the side wall of the lower part of the fixed shell 201 is fixedly connected to the first guide block 206.

[0043] Specifically, when it is necessary to lift a heavy object, the external drive source 202 is started. At this time, the output shaft of the external drive source 202 will drive the bidirectional screw 203 fixed to it to rotate, and at the same time drive the two sets of sliding blocks 204 threadedly connected to it to move synchronously. Since the sliding blocks 204 slide on the outer ring surface of the limit rod 205, and both ends of the limit rod 205 are fixed on the side walls of the groove of the fixed shell 201, when the bidirectional screw 203 rotates, the two sets of sliding blocks 204 will move synchronously toward the middle of the bidirectional screw 203, and at the same time drive the other mechanisms to move synchronously, thereby limiting the lifted heavy object, thereby preventing the heavy object from swinging in the air, and reducing the risk of collision with surrounding buildings or construction workers.

[0044] like Figure 6 As shown, a rotational offset mechanism 3 for flipping is provided on the side of the reciprocating limiting mechanism 2 in this embodiment. The rotational offset mechanism 3 includes an L-shaped fixing plate 301 , and the L-shaped fixing plate 301 is fixedly connected to the side wall of the sliding block 204 .

[0045] like Figure 6 and Figure 9 As shown, the L-shaped fixed plate 301 in this embodiment is composed of a vertical plate and a horizontal plate, the side of the vertical plate of the L-shaped fixed plate 301 is fixedly connected to the second guide block 302, the inside of the horizontal plate of the L-shaped fixed plate 301 is fixedly connected to the electric cylinder 303, the output end of the electric cylinder 303 is fixedly connected to the connecting block 304, the inside of the connecting block 304 is rotatably connected to the guide column 308, the outer ring surface of the guide column 308 is fixedly connected to the rotating plate 309, and the side of the rotating plate 309 close to the outer ring surface is fixedly connected to the sliding column 310.

[0046] Specifically, when the reciprocating limit mechanism 2 completes its work and is stored, the external driving source 202 is started to drive the two sets of sliding blocks 204 to move to the initial state, and the electric cylinder 303 is started. At this time, the output shaft of the electric cylinder 303 will drive the connecting block 304 to move upward along the guide of the second guide block 302, and at the same time drive the guide column 308 to move synchronously. Since the rotating plate 309 is fixed on the outer ring surface of the guide column 308, when the connecting block 304 moves upward, it will drive the rotating plate 309 to move synchronously, and will also drive the sliding column 310 to move synchronously. The movement of the connecting block 304 can provide power support for the movement of subsequent devices.

[0047] like Figure 7 As shown, the vertical plate of the L-shaped fixing plate 301 of this embodiment is provided with a first limiting groove 305, the side of the vertical plate of the L-shaped fixing plate 301 is provided with an arc groove 306, and the side of the vertical plate of the L-shaped fixing plate 301 is fixedly connected with a locking column 307.

[0048] like Figure 8 As shown, in this embodiment, the sliding block 204 is fixedly connected to a fixed block 311 on its side. A second limiting groove 312 is formed on the side of the fixed block 311 . A sliding block 313 is slidably connected inside the second limiting groove 312 .

[0049] like Figure 8 As shown, in this embodiment, the slider 313 is fixedly connected to a connecting column 314, and the outer ring surface of the other end of the connecting column 314 is rotatably connected to the limit plate 315.

[0050] Specifically, when the guide post 308 moves upward along the guide of the first limiting groove 305, it will drive the rotating plate 309 to move synchronously, and while moving, the teeth on the rotating plate 309 will gradually engage with the multiple groups of positioning posts 307 fixed on the vertical plate of the L-shaped fixed plate 301, and will rotate at the same time, and while rotating, it will drive the guide post 308 to rotate around its central axis. While rotating, the sliding post 310 fixed on the side of the rotating plate 309 will slide into the arc groove 306. When the tooth structure on one side of the rotating plate 309 is engaged with the multiple groups of positioning posts 307, the sliding post 310 fixed on one side of the rotating plate 309 will slide to the arc top of the arc groove 306 and continue to move along the guide of the arc groove 306. When the locking plate 309 is unlocked, the locking plate 310 is unlocked and the locking plate 311 is unlocked, so the locking plate 310 is unlocked. At the same time, the slider 313 will move upward along the guide of the second limiting groove 312, and rotate synchronously with the rotation of the rotating plate 309 while moving. When the rotating plate 309 disengages from the locking column 307, the side with the teeth will face downward, and the sliding column 310 will slide out of the arc groove 306 and enter the first limiting groove 305. At this time, the limiting plate 315 fixed on the guide column 308 will flip over to the top of the shoulder pole 105. By setting the fixed block 311, the second limiting groove 312, the slider 313 and the connecting column 314, the stability of the limiting plate 315 during operation can be improved, thereby reducing accidental collision or friction of the limiting plate during storage, thereby extending the service life of the limiting plate 315.

[0051] Working principle: when it is necessary to lift a heavy object, start the external drive source 202. At this time, the output shaft of the external drive source 202 will drive the bidirectional screw 203 fixed to it to rotate, and at the same time drive the two sets of sliding blocks 204 threadedly connected to it to move synchronously. Since the sliding block 204 slides on the outer ring surface of the limit rod 205, and both ends of the limit rod 205 are fixed on the side walls of the groove of the fixed shell 201, when the bidirectional screw 203 rotates, the two sets of sliding blocks 204 move synchronously toward the middle of the bidirectional screw 203, and drive the remaining mechanisms to move synchronously while moving, thereby limiting the lifted heavy object, thereby preventing the heavy object from swinging in the air, and reducing the risk of collision with surrounding buildings or construction workers.

[0052] When the reciprocating limit mechanism 2 completes its work, the external driving source 202 is started to drive the two sets of sliding blocks 204 to move to the initial state. At this time, the electric cylinder 303 is started. At this time, the output shaft of the electric cylinder 303 will drive the connecting block 304 to move upward along the guide of the second guide block 302, and at the same time drive the guide column 308 to move synchronously. Since the rotating plate 309 is fixed on the outer ring surface of the guide column 308, when the connecting block 304 moves upward, it will drive the rotating plate 309 to move synchronously, and will also drive the sliding column 310 to move synchronously. The movement of the connecting block 304 can provide power support for the movement of the subsequent device.

[0053] When the guide post 308 moves upward along the guide of the first limit slot 305, it will drive the rotating plate 309 to move synchronously, and while moving, the teeth on the rotating plate 309 will gradually engage with the multiple groups of positioning posts 307 fixed on the vertical plate of the L-shaped fixed plate 301, and at the same time drive the guide post 308 to rotate around its axis. While rotating, the sliding post 310 fixed on the side of the rotating plate 309 will slide into the arc groove 306. When the tooth structure on one side of the rotating plate 309 is engaged with the multiple groups of positioning posts 307, the sliding post 310 fixed on one side of the rotating plate 309 will slide to the arc top of the arc groove 306 and continue to move along the guide of the arc groove 306. At the same time, the slider 313 also When the cam 314 is in the unlock state, the locking cam 315 is in the unlock state, and ...

[0054] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for enhancing the safety factor during a rotor lifting operation, comprising a lifting device (1), the lifting device (1) comprising a lifting hook (101), the lifting hook (101) being sheathed with a steel wire rope (102) on its outer annular surface, one end of the steel wire rope (102) being fixedly connected to a dynamometer (103), the other end of the dynamometer (103) being fixedly connected to a hand chain hoist (104), the other end of the hand chain hoist (104) being fixedly connected to a shoulder pole (105), the shoulder pole (105) being provided with a hook fixing hole (106) therein, a hook fixing pin (107) being inserted into the hook fixing hole (106), the outer annular surface of the steel wire rope (102) being sheathed with a main lifting rope (108), and characterized in that: A reciprocating limiting mechanism (2) is provided at the bottom of the lifting device (1); The reciprocating limiting mechanism (2) includes a fixed shell (201) fixedly arranged on the side of the shoulder pole (105), a groove is provided inside the fixed shell (201), and a sliding block (204) is slidably arranged in the groove of the fixed shell (201). The sliding block (204) is provided in two groups, and the side of the lifted weight can be limited by the relative sliding of the two groups of sliding blocks (204), thereby avoiding the center of gravity shifting during lifting, thereby improving the safety of the device; The side wall of the groove of the fixed shell (201) is fixedly connected to an external driving source (202), the output shaft of the external driving source (202) is fixedly connected to a bidirectional screw (203), the outer ring surface of the bidirectional screw (203) is threadedly connected to a sliding block (204), a limiting rod (205) is provided inside the sliding block (204), the sliding block (204) is slidably connected to the outer ring surface of the limiting rod (205), and the side wall of the lower part of the fixed shell (201) is fixedly connected to a first guide block (206); The two sets of sliding blocks (204) are both arranged on the bidirectional screw (203). When the bidirectional screw (203) rotates, the two sets of sliding blocks (204) are driven to move synchronously, and are guided by the limiting rod (205) to move linearly, so that the two sets of sliding blocks (204) move synchronously toward the middle of the bidirectional screw (203), thereby limiting the position of the heavy object, thereby improving the safety of the device; A rotational offset mechanism (3) for flipping is provided on the side of the reciprocating limit mechanism (2), and the rotational offset mechanism (3) includes an L-shaped fixing plate (301), and the L-shaped fixing plate (301) is fixedly connected to the side wall of the sliding block (204); The L-shaped fixed plate (301) is composed of a vertical plate and a horizontal plate. The side of the vertical plate of the L-shaped fixed plate (301) is fixedly connected to a second guide block (302). The inside of the horizontal plate of the L-shaped fixed plate (301) is fixedly connected to an electric cylinder (303). The output end of the electric cylinder (303) is fixedly connected to a connecting block (304). The inside of the connecting block (304) is rotatably connected to a guide column (308). The outer ring surface of the guide column (308) is fixedly connected to a rotating plate (309). The side of the rotating plate (309) close to the outer ring surface is fixedly connected to a sliding column (310).

2. The device for enhancing the safety factor during rotor lifting operation according to claim 1, characterized in that: The arrangement of the second guide block (302) enables the connection block (304) to move linearly, thereby driving the rotating plate (309) to move linearly. One side of the rotating plate (309) is provided with teeth. The arrangement of the teeth of the rotating plate (309) can drive the components to flip, thereby avoiding inconvenience in storage.

3. The device for enhancing the safety factor during rotor lifting operation according to claim 1, characterized in that: The vertical plate of the L-shaped fixing plate (301) is provided with a first limiting groove (305) extending therethrough, the side surface of the vertical plate of the L-shaped fixing plate (301) is provided with an arc-shaped groove (306), and the side surface of the vertical plate of the L-shaped fixing plate (301) is fixedly connected with a positioning column (307).

4. The device for enhancing the safety factor during the rotor lifting operation according to claim 3, characterized in that: The first limiting groove (305) and the arc groove (306) are connected, and the locking columns (307) are provided in multiple groups and are adapted to the teeth provided on one side of the rotating plate (309).

5. The device for enhancing the safety factor during the rotor lifting operation according to claim 3, characterized in that: The sliding block (204) is fixedly connected to a fixed block (311) on its side, a second limiting groove (312) is provided on the side of the fixed block (311), and a sliding block (313) is slidably connected inside the second limiting groove (312).

6. The device for enhancing the safety factor during the rotor lifting operation according to claim 5, characterized in that: A connecting column (314) is fixedly connected inside the slider (313), and the outer ring surface of the other end of the connecting column (314) is rotatably connected to the limiting plate (315).

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