Vertical traffic transportation device for pumped storage power station

Abstract

The invention belongs to the technical field of water conservancy and hydropower engineering, and relates to a vertical traffic transportation device for a pumped storage power station. The carrying platform is pulled by the at least four traction motors through the traction steel wire rope, so that the high-load requirement is met. And a dynamic tension sensor is arranged on the traction steel wire rope. The parallel driving mode of at least four traction motors is combined with the real-time monitoring of the dynamic tension sensor, so that the power balance of high-speed operation under high load can be realized. The carrying platform is slidably connected with the guide rails through the guide shoes, so that the vertical posture stability of the carrying platform in the vertical shaft is guaranteed. The carrying platform is a steel structure closed type carrier, the internal net size is at least 16m * 7m * 10m, and the high-load transportation requirement can be met. A safety gear and speed limiter interlocking protection system is adopted to be matched with the steel structure closed platform, and the structural safety of the hundred-ton load during emergency braking is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and relates to a vertical transportation device for a pumped storage power station. Background Art

[0002] As the "super power bank" in the power system, the core function of the pumped-storage power station is to store and release electricity through the water level difference between the upper and lower reservoirs.

[0003] Vertical transportation in a pumped-storage power station involves installing hoisting equipment in a shaft to transport materials and equipment to the upper reservoir during the construction and operation periods. The hoisting equipment must have a large load capacity, with a maximum load of 60t to 80t, a large carrying platform, typically 16.0m×7.0m×5.0m, a fast operating speed of up to 100m / min, and a high lifting height, typically 400m to 500m.

[0004] Existing hoisting equipment is widely used in ship lifts, mine hoists, and elevators. However, ship lifts typically have a lifting height of less than 150 meters and substandard operating speeds. High-speed elevators have insufficient load capacity and small platform sizes. Mining hoists also typically lack the required load capacity and platform size. None of these existing hoisting equipment can simultaneously meet the vertical transportation requirements of pumped-storage power plants. Summary of the Invention

[0005] The object of the present invention is to provide a vertical transportation device for a pumped storage power station, so as to solve the technical problem that existing lifting equipment cannot simultaneously meet the vertical transportation requirements of the pumped storage power station.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention discloses a vertical transportation device for a pumped storage power station, comprising: a traction system, a guide system, a carrying platform and a safety protection system; The traction system includes at least four traction motors, traction steel ropes and dynamic tension sensors. The output end of each traction motor is connected to one end of the traction steel rope through a transmission device, and the other end of the traction rope wheel is connected to the carrying platform. The traction steel rope is provided with a dynamic tension sensor. The guide system includes a plurality of T-shaped guide rails and guide shoes, and the carrying platform is slidably connected to the guide rails through the guide shoes; The carrying platform is a closed steel structure vehicle with internal net dimensions of at least 16m×7m×10m; The safety protection system includes a speed limiter and a safety clamp. The safety clamp is arranged at the bottom of the carrying platform, and the speed limiter is electrically connected to the traction motor.

[0007] Furthermore, the traction system further comprises a coupling and a traction sheave; The output end of each traction motor is connected to the input end of the traction sheave through a reducer and a coupling. One end of the traction steel rope is wound around the traction sheave, and the other end of the traction steel rope is connected to the carrying platform.

[0008] Furthermore, the plurality of guide rails include at least two single-rail anti-bias arranged guide rails, and the remaining guide rails are symmetrically arranged.

[0009] Furthermore, the guide system also includes a guide rail bracket, a guide rail pressing plate and a guide rail fixing bolt, and the guide rail is installed on the guide rail bracket through the guide rail pressing plate and the guide rail fixing bolt.

[0010] Furthermore, the specification of the guide rail is T150, and a guide rail vehicle stop is provided on the top of the guide rail.

[0011] Furthermore, the diameter of the traction wire rope is at least 52 mm, and the rope capacity of the traction sheave is at least 500 m.

[0012] Furthermore, the carrying platform includes a load-bearing structure composed of columns, bottom beams and inclined rods, the top is closed and provided with a traction wire rope connection point, the traction wire rope connection point is fixedly connected to the traction wire rope, and a multi-layer material fixing device is configured inside.

[0013] Furthermore, the safety protection device also includes buffer terminal protection, buffer, upward overspeed protection device, phase loss and phase error protector, upper and lower limit switches, floor door lock and car door electrical interlocking device, and the speed limiter monitors the speed of the carrying platform in real time and is linked with the traction motor brake.

[0014] Furthermore, it also includes door systems; The door system comprises a landing door, a carrying platform door and a linked door opener. The carrying platform door is provided with an entrance and is linked to the landing door via a door knife.

[0015] Furthermore, it also includes an operating platform and an electrical control system; The electrical control system includes a control cabinet, a leveling device and a position display. The control cabinet is located in the middle of the operating platform, and the leveling device adopts photoelectric induction positioning; The traction motor and the transmission device are both arranged on the operating platform.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses at least four traction motors to pull the carrying platform through the traction steel wire rope to ensure high load requirements. A dynamic tension sensor is provided on the traction steel wire rope. The parallel driving mode of at least four traction motors combined with real-time monitoring by the dynamic tension sensor is conducive to achieving dynamic balance of high-speed operation under high load. The carrying platform is slidably connected to the guide rail through the guide shoe, which is conducive to ensuring the vertical posture stability of the carrying platform in the shaft. The carrying platform is a steel structure enclosed carrier with an internal net size of at least 16m×7m×10m, which is conducive to meeting high-load transportation needs. The present invention also uses a safety clamp and a speed limiter interlocking protection system in conjunction with the steel structure enclosed platform to ensure the structural safety of the hundred-ton load during emergency braking.

[0017] The present invention adopts a single-track anti-deviation and symmetrical combined guide rail layout, combined with T150 high-strength guide rail and top vehicle stop design, effectively overcoming the horizontal deviation of the 16m×7m super-large platform in a 500m travel.

[0018] The safety protection system also includes a buffer terminal protection, a buffer, an upward overspeed protection device, a phase failure and phase mismatch protection device, upper and lower limit switches, and an electrical interlock between the floor door lock and the car door. The speed limiter monitors the speed of the carrying platform in real time and is linked to the traction motor brake. This multi-layered safety protection system helps to increase the safety of the device and reduce the response time to faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a diagram of the device layout on the operating platform at the top of the shaft of the present invention.

[0020] Among them: 1. Operating platform; 2. Traction motor; 3. Brake; 4. Reducer; 5. Coupling; 6. Traction rope pulley; 7. Control cabinet; 8. Guide rail car stop; 9. Guide rail bracket; 10. Guide rail; 11. Guide rail joint; 12. Traction wire rope; 13. Carrying platform; 14. Shaft wall; 15. Guide rail embedded pad; 16. Guide rail fixing bolt; 17. Guide rail pressure plate. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first," "second," and the like in the description of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0023] The present invention is described in further detail below with reference to the accompanying drawings: See also Figure 1 , this embodiment discloses a vertical transportation device for a pumped storage power station, comprising: a traction system, a guide system, a carrying platform 13 and a safety protection system; The traction system includes at least four traction motors 2, traction ropes 12, and a dynamic tension sensor. The output end of each traction motor 2 is connected to one end of the traction rope 12 via a transmission device, and the other end of the traction sheave 6 is connected to the carrying platform 13. The traction rope 12 is equipped with a dynamic tension sensor. The parallel drive mode of at least four traction motors 2 combined with real-time monitoring by the dynamic tension sensor facilitates dynamic balance during high-speed operation under high load.

[0024] The guide system includes a plurality of T-shaped guide rails 10 and guide shoes. The carrying platform 13 is slidably connected to the guide rails 10 via the guide shoes, which helps to ensure the vertical posture stability of the carrying platform 13 in the shaft.

[0025] The carrying platform 13 is a closed steel structure carrier with an internal net size of at least 16m×7m×10m, which is conducive to meeting high-load transportation needs. The design load is at least 100t and the rated operating speed is 0 m / s to 1.5m / s.

[0026] The safety protection system includes a speed limiter and a safety clamp. The safety clamp is installed at the bottom of the carrying platform 13 and is electrically connected to the traction motor 2. The safety clamp and speed limiter interlocking protection system cooperates with the steel structure enclosed platform to ensure the structural safety of the 100-ton load during emergency braking.

[0027] In the embodiment of the present invention, the traction system further includes a coupling 5 and a traction sheave 6; The output end of each traction motor 2 is connected to the input end of the traction sheave 6 through the reducer 4 and the coupling 5. One end of the traction wire rope 12 is wound around the traction sheave 6, and the other end of the traction wire rope 12 is connected to the carrying platform 13.

[0028] In an embodiment of the present invention, the plurality of guide rails 10 include at least two single-track anti-skew guide rails 10, and the remaining guide rails 10 are arranged symmetrically. The present invention adopts a combined single-track anti-skew and symmetrical guide rail layout, which is conducive to overcoming horizontal deviation of a 16m×7m ultra-large platform within a 500m travel range.

[0029] In the embodiment of the present invention, the guide system further includes a guide rail bracket 9 , a guide rail pressing plate 17 and a guide rail fixing bolt 16 , and the guide rail 10 is mounted on the guide rail bracket 9 via the guide rail pressing plate 17 and the guide rail fixing bolt 16 .

[0030] In the embodiment of the present invention, the specification of the guide rail 10 is T150, and a guide rail vehicle stop 8 is provided on the top of the guide rail.

[0031] In the embodiment of the present invention, the diameter of the traction steel wire rope 12 is at least 52 mm, and the rope capacity of the traction sheave 6 is at least 500 m, so as to meet the requirements of high-load transportation.

[0032] In an embodiment of the present invention, the carrying platform 13 includes a load-bearing structure composed of columns, bottom beams and inclined rods. The top is closed and provided with a traction wire rope connection point. The traction wire rope connection point is fixedly connected to the traction wire rope 12, and a multi-layer material fixing device is configured inside.

[0033] In this embodiment of the present invention, the safety protection device also includes a buffer terminal protection, a buffer, an upward overspeed protection device, a phase loss and phase mismatch protector, upper and lower limit switches, and an electrical interlock between the landing door lock and the car door. The speed limiter monitors the speed of the carrying platform in real time and is linked to the traction motor 2 and brake 3. This multi-layered safety protection system helps to increase device safety and reduce fault response time.

[0034] In an embodiment of the present invention, a door system is further included; The door system comprises a landing door, a carrying platform door and a linked door opener. The carrying platform door is provided with an entrance and is linked to the landing door via a door knife.

[0035] See also Figure 2 , in the embodiment of the present invention, it also includes an operating platform 1 and an electrical control system; The electrical control system includes a control cabinet 7, a leveling device and a position display. The control cabinet 7 is located in the middle of the operating platform 1, and the leveling device adopts photoelectric induction positioning; The traction motor 2 and the transmission device are both arranged on the operating platform 1 .

[0036] In this embodiment, the rated pulling force of the traction motor 2 is 320N, the model of the traction motor 2 is: YVF400L2- / 560KW, the model of the reducer 4 is: ZSY630, and the model of the brake 3 is YWZ-710 / E301.

[0037] This invention serves as a new transportation system for connecting upper and lower reservoirs, especially when construction conditions for pumped-storage power stations are limited, making it impossible to lay a connecting road along a surface route, or when such a route is uneconomical. This invention significantly increases the size and rated load of the transport platform, while also offering faster operating speeds and greater lifting heights, improved safety, ease of operation, and enhanced practicality.

[0038] Example 2: See also Figure 1 This embodiment discloses a vertical transportation device for a pumped storage power station, including: a traction system, a guide system, a door system, a carrying platform 13, an electrical control system and a safety protection system.

[0039] The traction system mainly consists of a traction motor 2, a traction wire rope 12, a traction sheave 6, etc. The traction motor 2 and the traction sheave 6 are fixed on the operating platform 1 at the top of the shaft. One end of the traction wire rope 12 is fixed to the traction sheave 6, and the other end is connected to the carrying platform 13.

[0040] The guide system consists of a guide rail 10, a guide rail bracket 9 and a guide shoe. The guide rail bracket 9 is fixed to the well wall, the guide rail 10 is installed on the guide rail bracket 9, and the guide shoe is installed on the carrying platform 13.

[0041] The door system consists of the platform door, landing doors, door openers, linkage mechanisms, and door locks. The platform door, located at the platform entrance, consists of a door leaf, door guide rails, door opener, and door blade. The landing door, located at the landing station entrance, consists of a door leaf, door guide rails, door shoes, door locks, and an emergency unlocking device. The door opener, located on the platform 13, is the power source for opening and closing the platform door and landing doors.

[0042] The carrying platform 13 is composed of a carrying platform frame and a carrying platform body. The carrying platform frame is the load-bearing structure of the carrying platform body, and is composed of an upper crossbeam, a column, a bottom beam and a diagonal rod, etc. The carrying platform body is composed of a carrying platform bottom, a carrying platform wall, a carrying platform top, etc.

[0043] The electrical control system, consisting of operating devices, a position display device, a control cabinet 7, and a leveling device, is used to operate and control the elevator. The operating devices include a push-button control box within the platform 13, landing call buttons, and maintenance or emergency control boxes located on the car roof and in the machine room. The control cabinet 7, installed in the machine room and comprised of various electrical components, is responsible for the logic management of various elevator signals and speed control. The position display device indicates the position of the platform 13 and is installed within the platform 13 and outside the landing doors at each landing.

[0044] Safety protection devices primarily include speed limiters, safety clamps, buffer terminal protection, overspeed protection, phase loss and mismatch protection, upper and lower limits, and electrical interlocks between floor door locks and car doors. The speed limiter monitors and controls the operating speed of the platform 13 at all times. If the platform 13 exceeds the speed limit, it promptly sends a signal to cut off the power supply circuit and brake the traction motor. If braking is not possible, a safety clamp installed at the bottom of the platform 13 can quickly stop the platform 13 on the guide rail 10. The upward overspeed protection device ensures that if the platform 13 exceeds the speed limit during upward travel, the platform 13 is stopped or its speed is reduced to within the allowable range of the counterweight buffer.

[0045] The shaft top features an operating platform 1, with a control cabinet 7 located in the middle. Four traction motors 2 are arranged around the platform, each connected to a traction sheave 6 via a coupling 5. The traction motors 2 are equipped with brakes 3 and reducers 4. A traction wire rope 12 is wound around the traction sheave 6, with its other end connected to a carrying platform 13, which pulls the carrying platform 13 along a guide rail 10 fixed to the shaft wall 14. Six guide rails 10 are arranged along the shaft wall 14, secured by embedded guide rail pads 15, guide rail brackets 9, guide rail pressure plates 17, and guide rail fixing bolts 16. A guide rail stop 8 is installed at the top of the guide rail 10, and the guide rail joints 11 require special treatment.

[0046] See also Figure 2 In the preferred embodiment of the present invention, the traction motor 4 adopts a fixed hoist, which is installed at four positions of the operating platform to jointly control the lifting and carrying platform 13. The diameter of the traction wire rope 12 is 52mm, and the rope capacity of the traction sheave 6 is 500m.

[0047] In a preferred embodiment of the present invention, a total of six guide rails 10 are arranged on the shaft wall 14. The guide rails 10 are T-shaped guide rails with a specification parameter of T150.

[0048] In a preferred embodiment of the present invention, the load-carrying platform 13 has an inner net size of 16m×7m×10m, a design load of 100t, a rated speed of 1.5m / s, and is a steel structure with a closed top.

[0049] In this embodiment of the present invention, after the carrying platform 13 stops at the departure level, vehicles and materials automatically drive onto the carrying platform 13. After the vehicle stops, the traction motor 2 is started to drive the traction sheave 6 through the coupling 5 to recover / release the traction wire rope 12, thereby pulling the carrying platform 13 along the track 10. During the operation of the carrying platform, a speed limiter is used to monitor and control the operating speed of the carrying platform 13 at all times. When the carrying platform 13 exceeds the speed limit, a signal is promptly sent to cut off the power supply circuit and brake the traction motor 2. If the carrying platform 13 exceeds the speed limit, runs out of control, or the suspension device breaks, the safety clamp installed at the bottom of the carrying platform 13 can quickly stop the carrying platform 13 on the guide rail 10. After the carrying platform 13 moves to the target level, the brake stops the traction sheave 6, stops the carrying platform 13 at the target position, and then the door of the carrying platform 13 opens and the vehicle automatically drives out.

[0050] Example 3: See also Figure 1 This embodiment discloses a vertical transportation device for a pumped storage power station, including: a traction system, a guide system, a door system, a carrying platform 13, an electrical control system and a safety protection system.

[0051] The traction system mainly consists of a traction motor 2, a traction wire rope 12, a traction sheave 6, etc. The traction motor 2 and the traction sheave 6 are fixed to the operating platform 1 at the top of the shaft. One end of the traction wire rope 12 is fixed to the traction sheave 6, and the other end is connected to the carrying platform 13.

[0052] The guide system consists of a guide rail 10, a guide rail bracket 9 and a guide shoe. The guide rail bracket 9 is fixed on the shaft wall, the guide rail 10 is installed on the guide rail bracket 9, and the guide shoe is installed on the carrying platform 13.

[0053] The door system consists of a platform door, landing doors, door openers, linkage mechanisms, and door locks. The platform door, located at the platform entrance, consists of a door leaf, door guide rails, door opener, and door blade. The landing door, located at the landing station entrance, consists of a door leaf, door guide rails, door shoes, door locks, and an emergency unlocking device. The door opener, located on the platform 13, provides the power for opening and closing the platform door and landing doors.

[0054] The carrying platform 13 is composed of a carrying platform frame and a carrying platform body. The carrying platform frame is the load-bearing structure of the carrying platform body, which is composed of upper crossbeams, columns, bottom beams and inclined rods, etc. The carrying platform body is composed of a carrying platform bottom, a carrying platform wall, a carrying platform top, etc.

[0055] The electrical control system, consisting of operating devices, a position display device, a control cabinet 7, and a leveling device, is used to operate and control the elevator. The operating devices include a push-button control box on the platform, landing call buttons, and maintenance or emergency control boxes on the car roof and in the machine room. The control cabinet 7, installed in the machine room and comprised of various electrical components, is responsible for the logic management of various elevator signals and speed control. The position display device indicates the position of the platform 13 and is installed inside the platform and outside the landing doors at the landings.

[0056] The safety protection devices primarily include a speed limiter, a safety clamp, buffer terminal protection, overspeed protection, phase loss and mismatch protection, upper and lower limits, and electrical interlocks between floor door locks and car doors. The speed limiter monitors and controls the operating speed of the platform 13 at all times. If the platform 13 exceeds the speed limit, it promptly sends a signal to cut off the power supply circuit and brake the traction motor. If braking is not possible, a safety clamp installed at the bottom of the platform 13 can quickly stop the platform 13 on the guide rails. The upward overspeed protection device ensures that if the platform 13 exceeds the speed limit during upward travel, the platform 13 is stopped or its speed is reduced to within the permissible range of the counterweight buffer.

[0057] Preferably, see Figure 2 The traction machine utilizes four fixed winches, installed at four locations on the operating platform 1, to jointly control the lifting platform. The two winches are spaced 6 meters apart in the longitudinal direction and 3 meters apart in the width direction. Each winch has a rated pulling force of 320 kN and a YVF400L2- / 560 kW motor. The wire rope has a diameter of 52 mm and a rope capacity of 500 m. The reducer 4 is a ZSY630 model. The brake 3 is a YWZ-710 / E301 model.

[0058] Preferably, the load-carrying platform 13 has an internal net dimension of 16m×7m×10m, a design load of 100t, a rated speed of 1.5m / s, and is a steel structure with a closed top. The platform 13 is surrounded by reinforcement members such as I-beams and has four sets of lifting points on the top.

[0059] Preferably, the guide rail 10 is a T-shaped guide rail with a specification parameter of T150.

[0060] Preferably, the floor doors and the loading platform doors are both vertical sliding doors, made of thin steel plates, with reinforcing ribs on the back and coated with anti-vibration material.

[0061] Preferably, the carrying platform is designed in a rope winding manner and is a frame structure with multiple guide rails, multiple car frames and multiple guide shoes.

[0062] Preferably, the electrical control system adopts microcomputer control (MCU), with optional energy feedback system, delayed door closing device, anti-sinking device, automatic braking force detection device, etc.

[0063] Preferably, the speed limiter adopts the flameproof OX-240F with up and down anti-skid function, the buffer adopts the energy-absorbing buffer, and the safety clamp adopts the flameproof progressive OX-188 linkage safety clamp system that can act synchronously.

[0064] Preferably, the speed limiter adopts the flameproof OX-240F with up and down anti-skid function, the buffer adopts the energy-absorbing buffer, and the safety clamp adopts the flameproof progressive OX-188 linkage safety clamp system that can act synchronously.

[0065] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a permanent magnet synchronous traction motor 2 fixed to the operating platform at the top of the shaft to pull the carrying platform 13, causing it to move up and down along guide rails 10 fixed to the shaft wall. The carrying platform 13 has a rated load capacity of up to 100 tons and a rated operating speed of up to 1.5 m / s. The carrying platform 13 has internal dimensions of 16 m × 7 m × 10 m (length × width × height). It adopts a closed steel structure with four sets of lifting points on the top.

[0066] When the construction conditions of a pumped storage power station are restricted and it is not possible to arrange the connecting roads between the upper and lower reservoirs along the ground line, or the economic efficiency of the roads along the ground line is poor, the present invention is used as a supporting device for a new type of transportation mode connecting the upper and lower reservoirs.

[0067] The carrying platform of the device of the present invention has a large size, a large rated load, and a strong carrying and transportation capacity. It can meet the transportation needs of trucks, cranes, concrete pumps, material transport vehicles, pressure steel pipes, cement and other building materials during the construction and operation periods of the upper reservoir of the pumped storage power station and the water diversion tunnel of the water transmission and power generation system.

[0068] The device of the present invention has a high operating speed and meets the material transportation intensity requirements of the upper reservoir of the pumped storage power station and the water diversion tunnel of the water transmission and power generation system during the construction period and the operation period.

[0069] The present invention significantly improves the size and rated load of the carrying platform 13, and has a faster operating speed and a larger lifting height, is easy to operate and has strong practicality.

[0070] The above content is only for explaining the technical idea of the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A vertical transportation device for a pumped storage power station, characterized in that: include: Traction system, guidance system, carrying platform (13) and safety protection system; The traction system comprises at least four traction motors (2), traction steel wire ropes (12) and a dynamic tension sensor, wherein the output end of each traction motor (2) is connected to one end of the traction steel wire rope (12) through a transmission device, and the other end of the traction sheave (6) is connected to a carrying platform (13), and the traction steel wire rope (12) is provided with a dynamic tension sensor; The guide system comprises a plurality of T-shaped guide rails (10) and guide shoes, and the carrying platform (13) is slidably connected to the guide rails (10) via the guide shoes; The carrying platform (13) is a steel structure enclosed carrier with an internal net size of at least 16m×7m×10m; The safety protection system includes a speed limiter and a safety clamp, the safety clamp is arranged at the bottom of the carrying platform (13), and the speed limiter is electrically connected to the traction motor (2).

2. A vertical transportation device for a pumped storage power station according to claim 1, characterized in that: The traction system further includes a coupling (5) and a traction sheave (6); The output end of each traction motor (2) is connected to the input end of the traction sheave (6) through a reducer (4) and a coupling (5); one end of the traction wire rope (12) is wound around the traction sheave (6); and the other end of the traction wire rope (12) is connected to the carrying platform (13).

3. The vertical transportation device of a pumped storage power station according to claim 1, characterized in that: The plurality of guide rails (10) include at least two guide rails (10) arranged in a single-rail anti-bias manner, and the remaining guide rails (10) are arranged in a symmetrical manner.

4. A vertical transportation device for a pumped storage power station according to claim 1, characterized in that: The guide system further comprises a guide rail bracket (9), a guide rail pressing plate (17) and a guide rail fixing bolt (16), and the guide rail (10) is mounted on the guide rail bracket (9) via the guide rail pressing plate (17) and the guide rail fixing bolt (16).

5. The vertical transportation device of a pumped storage power station according to claim 1, characterized in that: The specification of the guide rail (10) is T150, and a guide rail vehicle stop (8) is provided on the top of the guide rail.

6. The vertical transportation device of a pumped storage power station according to claim 1, characterized in that: The diameter of the traction steel wire rope (12) is at least 52 mm, and the rope capacity of the traction sheave (6) is at least 500 m.

7. The vertical transportation device of a pumped storage power station according to claim 1, characterized in that: The carrying platform (13) includes a load-bearing structure composed of columns, bottom beams and inclined rods, the top is closed and provided with a traction wire rope connection point, the traction wire rope connection point is fixedly connected to the traction wire rope (12), and a multi-layer material fixing device is configured inside.

8. The vertical transportation device of a pumped storage power station according to claim 1, characterized in that: The safety protection device also includes a buffer terminal protection, a buffer, an upward overspeed protection device, a phase failure and phase mismatch protector, upper and lower limit switches, a floor door lock and a car door electrical interlocking device, and a speed limiter that monitors the speed of the carrying platform in real time and is linked to the traction motor (2) brake (3).

9. The vertical transportation device of a pumped storage power station according to claim 1, characterized in that: Also includes door systems; The door system comprises a landing door, a carrying platform door and a linked door opener. The carrying platform door is provided with an entrance and is linked to the landing door via a door knife.

10. The vertical transportation device of a pumped storage power station according to claim 1, characterized in that: Also includes an operating platform (1) and an electrical control system; The electrical control system comprises a control cabinet (7), a leveling device and a position display, wherein the control cabinet (7) is arranged in the middle of the operating platform (1), and the leveling device adopts photoelectric induction positioning; The traction motor (2) and the transmission device are both arranged on the operating platform (1).

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