Hydropower station electromechanical equipment mounting and lifting device

Abstract

The invention relates to the field of lifting devices, and discloses a hydropower station electromechanical equipment mounting and lifting device which comprises a lifting frame, a lifting mechanism and a lifting mechanism. The hoisting mechanism is fixedly connected to the supporting rod in a sliding manner; the lifting hook comprises a lifting frame, a hook, a baffle and an elastic assembly, the lifting frame is connected with the lifting mechanism, the lifting mechanism can drive the lifting frame to ascend and descend, the hook and the baffle are rotationally connected to the lower end of the lifting frame and can be switched between a first state and a second state, and in the first state, the hook and the end, away from the lifting frame, of the baffle are mutually buckled; in the second state, the hook is separated from one end of the baffle away from the hanger. Automation of lifting and unhooking is achieved, electromechanical equipment can be automatically separated from the lifting hook, and the problem that automatic unhooking cannot be achieved in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lifting devices, in particular to a lifting device for installation of electromechanical equipment in a hydropower station. BACKGROUND

[0002] In the construction and operation process of a hydropower station, the installation lifting device for electromechanical equipment plays a crucial role. The electromechanical system of a hydropower station is complex and diverse, covering power systems, power systems, water supply systems and many other key parts. The equipment in these systems is often large in size and heavy in weight. From the precise hoisting of the hydroelectric generator set to the installation of various auxiliary equipment, to the equipment handling during routine maintenance, efficient and reliable lifting devices are indispensable. With the continuous expansion of the scale of hydropower stations and the continuous upgrading of technology, the demand for installation lifting devices for electromechanical equipment is also growing. It has broad application prospects, can effectively improve construction efficiency, ensure installation accuracy, and provide strong support for the stable operation of hydropower stations. It is an indispensable important tool in the field of construction and operation of hydropower stations.

[0003] However, the existing installation lifting device for electromechanical equipment in a hydropower station has some obvious defects in actual use. Especially when hoisting large electromechanical equipment, the problem is particularly prominent. After the equipment is hoisted to the designated position, the existing lifting device often cannot realize the automatic unhooking function. This means that the operator needs to manually release the connection between the hook and the equipment when the equipment is at a high position. This not only makes the operation extremely inconvenient, requires workers to perform complex operations at high altitudes, increases the risk of operation, and may also cause the equipment to shake or fall due to improper operation, posing a serious threat to the safety of construction personnel and the integrity of the equipment. In addition, the manual unhooking process takes a long time, which greatly reduces the efficiency of the entire hoisting operation and affects the progress of the construction and maintenance work of the hydropower station.

[0004] In view of the above-mentioned automatic unhooking problem of the existing lifting device during hoisting of large electromechanical equipment and the series of problems it causes, it is particularly urgent and necessary to solve this defect. SUMMARY

[0005] The present application aims to provide a lifting device for installation of electromechanical equipment in a hydropower station to overcome the above-mentioned deficiencies.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present application is: A lifting device for installation of electromechanical equipment in a hydropower station, comprising: a lifting frame comprising a transverse support rod; a hoisting mechanism fixedly and slidably connected to the support rod; and The hook comprises a hanger, a hook, a baffle and an elastic assembly, the hanger is connected with a hoisting mechanism, the hoisting mechanism can drive the hanger to ascend and descend, the hook and the baffle are rotationally connected at the lower end of the hanger and can be switched between a first state and a second state, the hook and / or the baffle can be moved to the first state under the action of downward pulling force, in the first state, the ends of the hook and the baffle away from the hanger are buckled with each other, the hook and the baffle can overcome their own gravity and move to the second state under the action of the elastic assembly, in the second state, the ends of the hook and the baffle away from the hanger are separated from each other.

[0007] Further, the lower end of the hanger is provided with a containing cavity, the side wall of the containing cavity is provided with a first vertical sliding groove and a second vertical sliding groove, the first sliding groove and the second sliding groove are arranged in parallel, the end of the hook close to the hanger is vertically fixedly connected with a first rotating shaft, the first rotating shaft is rotationally and slidingly connected with the first sliding groove, the first rotating shaft is coaxially fixedly connected with a first gear, the end of the baffle close to the hanger is vertically fixedly connected with a second rotating shaft, the second rotating shaft is rotationally and slidingly connected with the second sliding groove, the second rotating shaft is coaxially fixedly connected with a second gear, and the second gear is engaged with the first gear.

[0008] Further, the hook further comprises a limiting protrusion fixedly connected to the inner bottom surface of the containing cavity, the outer side wall of the second rotating shaft is provided with a limiting groove, and the limiting protrusion is detachably connected with the limiting groove. In the first state, the limiting protrusion is inserted into the limiting groove, and in the second state, the limiting protrusion and the limiting groove are separated from each other.

[0009] Further, the hook further comprises: a first gear rack and a second gear rack arranged in the containing cavity, the first gear rack is fixedly connected with the inner side wall of the containing cavity, and the second gear rack is movably connected below the first gear rack in the vertical direction, a third gear coaxially fixedly connected to the first rotating shaft, the third gear is selectively engaged with at least one of the first gear rack and the second gear rack, in the first state, the third gear is engaged with the second gear rack, and the limiting protrusion is inserted into the limiting groove, and in the second state, the third gear is engaged with the first gear, and the limiting protrusion is separated from the limiting groove. Further, the elastic assembly comprises a first elastic member and a second elastic member, the first elastic member is used to drive the second gear rack to move towards the first gear rack, and the second elastic member is used to drive the ends of the hook and the baffle away from the hanger to be separated from each other. In the process of switching from the second state to the first state, the downward pressure overcomes the force of the first and second elastic members to drive the hook downward, the third gear is in mesh with the first and second racks in turn, and under the action of the first and second gears, the hook and the baffle are brought close to each other and abut against one end of the hanger, and then the limiting protrusions are inserted into the limiting grooves; In the process of switching from the second state to the first state, the second elastic member is used to drive the first rotating shaft to move upward, so that the limiting protrusions are disengaged from the limiting grooves, until the third gear is in mesh with the first rack, and the second elastic member drives the hook and the baffle to move away from each other to the second state.

[0010] Further, the first elastic member comprises: a plurality of guide rods fixedly connected to the lower side of the first rack, the guide rods being arranged in the vertical direction and being in sliding connection with the second rack; an end plate fixedly connected to the lower end of the guide rod; a plurality of first compression springs located below the second rack and being correspondingly sleeved on the plurality of guide rods, one end of the first compression spring being connected to the end plate, and the other end of the first compression spring being connected to the first rack.

[0011] Further, the side walls of the hook and the baffle, which are close to each other, are fixedly provided with connecting protrusions, the second elastic member comprises a second compression spring, both ends of the second compression spring are sleeved on the two connecting protrusions respectively, and the second compression spring is fixedly connected with the hook and the baffle respectively.

[0012] Further, it further comprises a positioning sheet slidingly connected to the inner side wall of the accommodating cavity in the vertical direction, and the first rotating shaft and the second rotating shaft are respectively in rotational connection with the positioning sheet.

[0013] Further, the hanger is rotatably connected with a pulley at the upper end, The hoisting mechanism comprises a support frame and a winch fixedly connected to the support frame, one end of a connecting rope is wound around the drum of the winch, the other end of the connecting rope passes through the pulley and is fixedly connected with the support frame, and starting the winch to rotate in forward and reverse directions can drive the hanger to ascend or descend.

[0014] The hoisting mechanism further comprises: a plurality of moving wheels rotatably connected above the support frame, the plurality of moving wheels being fixedly and slidingly connected with the transverse support rod, and a speed reduction motor, the speed reduction motor being in transmission connection with at least one of the moving wheels.

[0015] Furthermore, the lifting frame also includes two longitudinal support rods, the upper ends of which are fixedly connected to the two ends of the transverse support rod; The first gear is a half gear fixedly connected to the hook near the end of the hanger, and the second gear is the other half gear fixedly connected to the baffle near the end of the hanger.

[0016] Compared with the prior art, the present invention has at least the following advantages: In existing technologies, during the hoisting of large electromechanical equipment, the hoisting device cannot achieve an automatic unhooking function. Operators need to manually disconnect the hook from the equipment when it is in a high position. This is not only extremely inconvenient and increases operational risks, but may also lead to dangerous situations such as equipment shaking or falling due to improper operation, seriously threatening the personal safety of construction personnel and the integrity of the equipment.

[0017] This invention automates lifting and unhooking processes through a unique hook structure design. Specifically, the hook includes a hook, a baffle, and an elastic component, which can switch between a first state and a second state. In the first state, the hook and baffle are interlocked, firmly gripping the electromechanical equipment; in the second state, the hook and baffle separate, allowing the electromechanical equipment to automatically detach from the hook. This design effectively solves the problem of automatic unhooking in existing technologies, avoiding the inconvenience and risks of manual unhooking, and greatly improving the safety of lifting operations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the hydropower station electromechanical equipment installation and lifting device of the present invention; Figure 2 For the present invention Figure 1 A magnified view of a portion of region A in the middle; Figure 3 This is a schematic diagram of the structure of the hook of the present invention; Figure 4 This is a sectional view of the hook of the present invention; Figure 5 This is another sectional view of the hook of the present invention; Figure 6 This is a schematic diagram of the positioning plate of the present invention.

[0020] Fig. 1 is a lifting frame; Fig. 2 is a hoisting mechanism; Fig. 3 is a lifting hook; Fig. 101 is a transverse support rod; Fig. 102 is a longitudinal support rod; Fig. 201 is a support frame; Fig. 202 is a winch; Fig. 203 is a connecting rope; Fig. 204 is a moving wheel; Fig. 205 is a speed reduction motor; Fig. 301 is a lifting frame; Fig. 302 is a containing cavity; Fig. 303 is a first sliding groove; Fig. 304 is a second sliding groove; Fig. 305 is a hook; Fig. 306 is a first rotating shaft; Fig. 307 is a first gear; Fig. 308 is a third gear; Fig. 309 is a baffle; Fig. 310 is a second rotating shaft; Fig. 311 is a limiting groove; Fig. 312 is a second gear; Fig. 313 is a limiting protrusion; Fig. 314 is a first rack; Fig. 315 is a second rack; Fig. 316 is a guide rod; Fig. 317 is an end plate; Fig. 318 is a first compression spring; Fig. 319 is a connecting protrusion; Fig. 320 is a second compression spring; Fig. 321 is a pulley; Fig. 322 is a positioning sheet. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0023] Reference Figures 1-2 The present application provides a water power station electromechanical equipment installation lifting device, mainly comprising a lifting frame 1, a hoisting mechanism 2 and a lifting hook 3.

[0024] The lifting frame 1 is the support structure of the whole device, and the main body is a transverse support rod 101. In addition, it also comprises two longitudinal support rods 102, the upper ends of the two longitudinal support rods 102 are respectively fixedly connected with the two ends of the transverse support rod 101, forming a stable frame structure, providing a firm foundation for the installation and operation of the hoisting mechanism 2. The lower end of the longitudinal support rod 102 can be provided with a universal wheel with a brake to facilitate its movement, or a fixed structure can be used to fix it on the ground, which belongs to the prior art and will not be described here.

[0025] The lifting mechanism 2 is fixedly and slidably connected to the transverse support rod 101 and can move along the transverse support rod 101 to adapt to the lifting requirements at different positions. It mainly comprises a support frame 201 and a winch 202. The winch 202 is fixedly connected to the support frame 201, and the winding drum of the winch 202 is wound with one end of a connecting rope 203. The other end of the connecting rope 203 passes through the pulley 321 at the upper end of the lifting frame 301 and is fixedly connected to the support frame 201. By starting the winch 202 to rotate forward or reverse, the lifting frame 301 can be driven to ascend or descend in the vertical direction, thereby achieving the lifting and unloading of the electromechanical equipment.

[0026] In addition, the lifting mechanism 2 further comprises a plurality of moving wheels 204 and a speed reduction motor 205. The plurality of moving wheels 204 are rotatably connected above the support frame 201 and are fixedly and slidably connected to the transverse support rod 101. The speed reduction motor 205 is drivingly connected to at least one moving wheel 204, and the rotation of the moving wheel 204 can be controlled by driving the speed reduction motor 205, thereby realizing the horizontal movement of the lifting mechanism 2 on the transverse support rod 101, and further improving the flexibility and accuracy of the lifting operation.

[0027] With reference to Figures 3-5 The lifting hook 3 is a key component directly connected to the lifting mechanism 2 and used for lifting the electromechanical equipment. It mainly comprises a lifting frame 301, a hook 305, a baffle 309 and an elastic assembly.

[0028] The lifting frame 301 is connected to the lifting mechanism 2 and can move with the lifting mechanism 2 ascending and descending. The lower end of the lifting frame 301 is provided with a receiving cavity 302, and the side wall of the receiving cavity 302 is provided with a first sliding groove 303 and a second sliding groove 304 in the vertical direction.

[0029] The hook 305 and the baffle 309 are rotatably connected to the lower end of the lifting frame 301 and can be switched between a first state and a second state. The hook 305 and / or the baffle 309 can move to the first state under the action of a downward pulling force, and in the first state, the ends of the hook 305 and the baffle 309 away from the lifting frame 301 are buckled to each other. The hook 305 and the baffle 309 can overcome their own gravity and move to the second state under the action of the elastic assembly, and in the second state, the ends of the hook 305 and the baffle 309 away from the lifting frame 301 are separated from each other.

[0030] The first rotating shaft 306 is coaxially fixedly connected with a first gear 307. The second rotating shaft 310 is coaxially fixedly connected with a second gear 312, and the second gear 312 is engaged with the first gear 307. Through the engagement structure of the second gear 312 and the first gear 307, the hook 305 and the baffle 309 can be synchronously approached and synchronously separated. The first gear 307 is a half gear fixedly connected to the end of the hook 305 close to the hanger 301, and the second gear 312 is another half gear fixedly connected to the end of the baffle 309 close to the hanger 301.

[0031] The first rack 314 is fixedly connected to the inner side wall of the accommodating cavity 302, and the second rack 315 is movably connected below the first rack 314 in the vertical direction. The first rotating shaft 306 is coaxially fixedly connected with a third gear 308, which is selectively engaged with at least one of the first rack 314 and the second rack 315. Meanwhile, a limiting protrusion 313 is fixedly connected in the accommodating cavity 302, and a limiting recess 311 is arranged on the outer side wall of the second rotating shaft 310, and the limiting protrusion 313 is detachably connected with the limiting recess 311.

[0032] In the first state, the limiting protrusion 313 is inserted into the limiting recess 311, and in the second state, the limiting protrusion 313 and the limiting recess 311 are separated from each other.

[0033] The elastic assembly includes a first elastic member and a second elastic member. The first elastic member is used to drive the second rack 315 to move towards the first rack 314, and mainly includes a plurality of guide rods 316, an end plate 317 and a plurality of first compression springs 318. The upper ends of the plurality of guide rods 316 are fixedly connected below the first rack 314, arranged in the vertical direction, and slidably connected with the second rack 315. The end plate 317 is fixedly connected to the lower ends of the guide rods 316. The plurality of first compression springs 318 are located below the second rack 315, one by one correspondingly sleeved on the plurality of guide rods 316, one end connected with the end plate 317, and the other end connected with the first rack 314.

[0034] The second elastic member is used to drive the hook 305 and the baffle 309 to separate from each other away from the end of the hanger 301, and includes a second compression spring 320. The side walls of the hook 305 and the baffle 309 close to each other are fixedly provided with a connecting protrusion 319, and the two ends of the second compression spring 320 are sleeved on the two connecting protrusions 319 respectively, and are fixedly connected with the hook 305 and the baffle 309 respectively.

[0035] With reference to Figure 6 The present application also comprises a positioning sheet 322 slidably connected to the inner side wall of the accommodating cavity 302 in the vertical direction, the positioning sheet 322 is provided with two through holes corresponding to the first rotating shaft 306 and the second rotating shaft 310 respectively, the first rotating shaft 306 is movably penetrated through the through hole and rotationally connected to the positioning sheet 322, and the second rotating shaft 310 is movably penetrated through the through hole and rotationally connected to the positioning sheet 322. The positioning sheet 322 is provided with a sliding groove on the surface close to the inner side wall of the accommodating cavity 302, and the inner side wall of the accommodating cavity 302 is provided with a sliding protrusion, and the sliding groove is slidably connected to the sliding protrusion. By arranging the positioning sheet 322, the first rotating shaft 306 and the second rotating shaft 310 can be ensured to slide synchronously along the accommodating cavity 302, so as to realize the switching of the first rotating shaft 306 and the second rotating shaft 310 between the first state and the second state.

[0036] The state switching and operation steps of the lifting hook 3 are as follows: When it is needed to switch the lifting hook 3 from the second state to the first state in order to hoist the electrical equipment, first, the electrical equipment is hung on the hook 305, and then the winch 202 drives the lifting frame 301 to move upward, and the electrical equipment exerts a downward pressure on the hook 305. This downward pressure will overcome the force of the first elastic member and the second elastic member, and drive the hook 305 to move downward relative to the lifting frame 301. During the downward movement of the hook 305, the third gear 308 will be engaged with the first rack 314 and the second rack 315 in turn. Due to the meshing relationship between the first gear 307 and the second gear 312, the ends of the hook 305 and the baffle 309 away from the lifting frame 301 will approach each other and abut under the action of the first gear 307 and the second gear 312. Then, the limiting protrusion 313 will be inserted into the limiting groove 311, and at this time, the lifting hook 3 is in the first state. In this state, the ends of the hook 305 and the baffle 309 away from the lifting frame 301 are mutually engaged, which can firmly grasp the electrical equipment and ensure the stability and safety of the hoisting process.

[0037] When the electromechanical equipment is hoisted into place, the first elastic member and the second elastic member begin to play a role when the hook 3 needs to be switched from the first state to the second state to realize automatic unhooking. The first elastic member drives the second rack 315 and the first rotating shaft 306 to move upward, so that the limiting protrusion 313 is separated from the limiting groove 311. With the action of the second elastic member, the hook 3 and the baffle 309 away from one end of the hanger 301 are away from each other, and the third gear 308 is engaged with the first rack 314. At this time, the second elastic member further drives the hook 305 and the baffle 309 away from one end of the hanger 301 to separate from each other, and finally moves to the second state. In the second state, the hook 305 and the baffle 309 away from one end of the hanger 301 are separated from each other, and the electromechanical equipment can be separated from the hook 3 to realize automatic unhooking, greatly improving the efficiency and safety of hoisting operation, avoiding the inconvenience and risk brought by manual unhooking.

[0038] The electromechanical equipment installation lifting device of the hydropower station effectively solves the defect that large electromechanical equipment cannot be automatically unhooked during hoisting in the prior art, realizes the automation of hoisting and unhooking, improves the operation efficiency, reduces the labor intensity, and at the same time, guarantees the safety of the operating personnel, has a broad application prospect and important practical significance.

[0039] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0040] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the claims of the present application.

Claims

1. A lifting device for installing electromechanical equipment in a hydropower station, characterized in that, include: The lifting frame (1) includes a transverse support rod (101). A lifting mechanism (2) is fixedly and slidably connected to the support rod; and a hook (3), including a hanger (301), a hook (305), a baffle (309), and an elastic component. The hanger (301) is connected to the lifting mechanism (2), and the lifting mechanism (2) can drive the hanger (301) to rise and fall. The hook (305) and the baffle (309) are rotatably connected to the lower end of the hanger (301) and can be switched between a first state and a second state. The hook (305) and / or the baffle (309) can move to a first state under the action of a downward pulling force. In the first state, the ends of the hook (305) and the baffle (309) away from the hanger (301) are engaged with each other. The hook (305) and the baffle (309) can overcome their own weight and move to a second state under the action of the elastic component. In the second state, the ends of the hook (305) and the baffle (309) away from the hanger (301) are separated from each other.

2. The hydropower station electromechanical equipment installation and lifting device according to claim 1, characterized in that, The lower end of the hanger (301) is provided with a receiving cavity (302). The side wall of the receiving cavity (302) is provided with a first sliding groove (303) and a second sliding groove (304) in a vertical direction. The first sliding groove (303) and the second sliding groove (304) are arranged in parallel. The hook (305) is vertically fixedly connected to a first rotating shaft (306) at one end near the hanger (301). The first rotating shaft (306) is rotatably and slidably connected to the first sliding groove (303). The first rotating shaft (306) is coaxially fixedly connected to a first gear (307). The baffle (309) is vertically fixedly connected to a second rotating shaft (310) at one end near the hanger (301). The second rotating shaft (310) is rotatably and slidably connected to the second sliding groove (304). The second rotating shaft (310) is coaxially fixedly connected to a second gear (312). The second gear (312) meshes with the first gear (307).

3. The hydropower station electromechanical equipment installation and lifting device according to claim 2, characterized in that, The hook (3) also includes a limiting protrusion (313) fixedly connected to the bottom surface of the receiving cavity (302), and a limiting groove (311) is provided on the outer side wall of the second rotating shaft (310). The limiting protrusion (313) and the limiting groove (311) are detachably connected. In the first state, the limiting protrusion (313) is inserted into the limiting groove (311), and in the second state, the limiting protrusion (313) and the limiting groove (311) are separated from each other.

4. The hydropower station electromechanical equipment installation and lifting device according to claim 3, characterized in that, The hook (3) also includes: A first rack (314) and a second rack (315) are disposed in the receiving cavity (302). The first rack (314) is fixedly connected to the inner wall of the receiving cavity (302). The second rack (315) is movably connected below the first rack (314) in the vertical direction and coaxially fixedly connected to a third gear (308) on the first rotating shaft (306). The third gear (308) selectively meshes with at least one of the first rack (314) and the second rack (315). In the first state, the third gear (308) meshes with the second rack (315), and the limiting protrusion (313) is inserted into the limiting groove (311). In the second state, the third gear (308) meshes with the first gear (307), and the limiting protrusion (313) disengages from the limiting groove (311).

5. The hydropower station electromechanical equipment installation and lifting device according to claim 4, characterized in that, The elastic component includes a first elastic element and a second elastic element. The first elastic element is used to drive the second rack (315) to move toward the first rack (314). The second elastic element is used to drive the hook (305) and the baffle (309) to separate from one end away from the hanger (301). During the transition from the second state to the first state, the downward pressure overcomes the force of the first and second elastic elements, causing the hook (305) to move downward. The third gear (308) meshes with the first rack (314) and the second rack (315) in sequence. Under the action of the first gear (307) and the second gear (312), the hook (305) and the baffle (309) move closer to each other and abut against one end away from the hanger (301). Then, the limiting protrusion (313) is inserted into the limiting groove (311). During the transition from the second state to the first state, the second elastic element drives the first rotating shaft (306) to move upward, causing the limiting protrusion (313) to disengage from the limiting groove (311) until the third gear (308) meshes with the first rack (314). The second elastic element then drives the hook (305) and the baffle (309) to move away from the end of the hanger (301) to separate and move to the second state.

6. The hydropower station electromechanical equipment installation and lifting device according to claim 5, characterized in that, The first elastic element includes: Multiple guide rods (316) are fixedly connected to the upper end below the first rack (314). The guide rods (316) are arranged in the vertical direction and are slidably connected to the second rack (315). The end plate (317) is fixedly connected to the lower end of the guide rod (316). Multiple first compression springs (318) are located below the second rack (315) and are fitted one-to-one on multiple guide rods (316). One end of the first compression spring (318) is connected to the end plate (317), and the other end of the first compression spring (318) is connected to the first rack (314).

7. The hydropower station electromechanical equipment installation and lifting device according to claim 6, characterized in that, The hook (305) and the baffle (309) are both fixedly provided with connecting protrusions (319) on their sidewalls that are close to each other. The second elastic element includes a second compression spring (320). The two ends of the second compression spring (320) are respectively sleeved on the two connecting protrusions (319) and are respectively fixedly connected to the hook (305) and the baffle (309).

8. The hydropower station electromechanical equipment installation and lifting device according to any one of claims 2-7, characterized in that, It also includes a positioning piece (322) that is slidably connected to the inner wall of the receiving cavity (302) in the vertical direction, and the first rotating shaft (306) and the second rotating shaft (310) are respectively rotatably connected to the positioning piece (322).

9. The hydropower station electromechanical equipment installation and lifting device according to claim 8, characterized in that, The upper end of the hanger (301) is rotatably connected to a pulley (321). The hoisting mechanism (2) includes a support frame (201) and a winch (202) fixedly connected to the support frame (201). One end of a connecting rope (203) is wound on the reel of the winch (202). The other end of the connecting rope (203) passes through the pulley (321) and is fixedly connected to the support frame (201). Starting the winch (202) to rotate forward and backward can drive the hoisting frame (301) to rise or fall. The hoisting mechanism (2) also includes: A plurality of movable wheels (204) are rotatably connected above the support frame (201), the plurality of movable wheels (204) are fixedly and slidably connected to the transverse support rod (101), and a geared motor (205) is drivenly connected to at least one of the movable wheels (204).

10. The hydropower station electromechanical equipment installation and lifting device according to claim 9, characterized in that, The lifting frame (1) also includes two longitudinal support rods (102), the upper ends of the two longitudinal support rods (102) being fixedly connected to the two ends of the transverse support rod (101); The first gear (307) is a half gear fixedly connected to the hook (305) near the end of the hanger (301), and the second gear (312) is another half gear fixedly connected to the baffle (309) near the end of the hanger (301).

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