Installation and transportation device for tail water elbow pipe of pump turbine

Abstract

The invention provides a mounting and transporting device for a tail water elbow of a pump turbine, relates to the field of mounting and transporting devices for tail water elbows, and aims to solve the problem that an existing device lacks an effective limiting structure and is not convenient to mount and transport due to the fact that a moving plate is slidably connected into a longitudinal groove formed in a guide frame through a sliding block fixedly connected to the outer side of the moving plate. According to the technical scheme, the problems that a trolley slides due to inertia due to the inclination of a rail easily and a transported tail water elbow pipe collides with other pipelines are solved, an inserting rod fixedly connected to the bottom end face of a limiting rod is pulled out from a limiting block fixedly connected to the outer side of a guide shaft, and when the trolley is used, the tail water elbow pipe is pulled out from the limiting block fixedly connected to the outer side of the guide shaft; by means of the design, automatic unlocking operation on a current rail wheel can be achieved, the device can be unlocked during pushing, when pushing is not conducted, automatic locking and limiting are conducted by inserting an inserting rod into a limiting block, and by means of the design, through linkage with an unlocking rod, on one hand, limiting is achieved, and on the other hand, moving operation is assisted.

Description

Technical Field

[0001] The invention belongs to the field of tailwater elbow installation and transportation devices, and in particular relates to an installation and transportation device for a tailwater elbow of a water pump turbine. Background Art

[0002] The pump-turbine is a new type of pumped storage unit that appeared in the 1930s. Compared with the energy storage unit in which a turbine and a water pump are connected in series, its weight is greatly reduced and its cost is reduced, so it is widely used. When the pump-turbine is in use, it needs to be spliced ​​with multiple pipes. In order to adjust the water flow, the corresponding tailwater elbow is required to be installed in pieces for the corresponding assembly operation. When the existing elbow is installed, it is necessary to use lifting equipment to lift the tailwater elbow onto the trolley, and then lift the trolley by manually using a crowbar to realize the transportation of the elbow. When the existing installation and transportation device is in use, it needs to move along the track through the track wheel, and when it moves, it lacks an effective limiting structure, which can easily cause the trolley to slide due to inertia due to the slope of the track, and cause the transported tailwater elbow to collide with the remaining pipelines, which has limitations.

[0003] Therefore, in view of the shortcomings of the above scheme in actual production and implementation, it is revised and improved. At the same time, in the spirit and concept of seeking for excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, the present invention is created. In particular, a pump-turbine tailwater elbow installation and transportation device is provided to solve the problem that the existing trolley needs to be moved along the track through track wheels, and lacks an effective limiting structure when moving, which easily causes the trolley to slide due to inertia due to the slope of the track, and causes the transported tailwater elbow to collide with the remaining pipelines, which has limitations. Summary of the invention

[0004] The present invention proposes an installation and transportation device for a tailwater elbow of a pump-turbine, which solves the problem in the prior art that the device needs to be moved along a track by means of track wheels, but lacks an effective limiting structure when moving, which easily causes the trolley to slide due to inertia due to the slope of the track, and causes a collision between the transported tailwater elbow and other pipelines, thus having limitations.

[0005] The technical solution of the present invention is implemented as follows: a pump turbine tailwater elbow installation and transportation device includes a guide frame, wherein a longitudinal groove is provided inside the guide frame, and the guide frame is provided at four locations, wherein two transversely adjacent guide frames form a group, and a movable plate is installed on the inner side of the two groups of guide frames, and a groove is provided at the front end of the movable plate in a linear array, and the groove is a card slot, and the card slot and the movable plate together form a pushing structure. A card block is fixedly connected to the rear end surface of the movable plate, and the main body of the card block is an inclined structure and matches the limit rod, and a slider is fixedly connected to the outer side of the movable plate, and four sliders are fixedly connected to the outer side of each movable plate in opposite directions, and the movable plate is slidably connected to the longitudinal groove provided in the guide frame through the slider fixedly connected to the outer side thereof, and the movable plate is connected to the guide frame through a reset rod, and the main body of the reset rod is a telescopic structure with a spring:

[0006] As a preferred embodiment, the guide frame is fixedly connected to the front end surface of the splicing plate, and there are four splicing plates in total. The four splicing plates are arranged in a circular array, and the inner sides of the four splicing plates are also fixedly connected to a base. The main body of the base is a thick upper and thin lower structure, and the outer side of the base is fixedly connected with two reinforcing ribs in opposite directions.

[0007] As a preferred embodiment, the reinforcing ribs are arranged longitudinally, and the reinforcing ribs and the base together constitute a supporting structure, and a side panel is fixedly connected to the bottom end surface of the base, and there are two side panels in total. The two side panels are fixedly connected to the left and right sides of the bottom end surface of the base in a linear array, and the inner sides of the two side panels are also rotatably connected to track wheels, and the track wheels and the side panels together constitute a supporting structure for the base.

[0008] As a preferred embodiment, the reinforcing ribs are arranged longitudinally, and the reinforcing ribs and the base together constitute a supporting structure, and a side panel is fixedly connected to the bottom end surface of the base, and there are two side panels in total. The two side panels are fixedly connected to the left and right sides of the bottom end surface of the base in a linear array, and the inner sides of the two side panels are also rotatably connected to track wheels, and the track wheels and the side panels together constitute a supporting structure for the base.

[0009] As a preferred embodiment, an insertion rod is fixedly connected to the bottom end surface of the limiting rod, and the main body of the insertion rod is a cylindrical structure, and the diameter of the insertion rod is smaller than the diameter of the limiting rod. The insertion rod and the limiting rod together constitute a limiting structure for the track wheel.

[0010] As a preferred embodiment, a support frame is fixedly connected to the inner side of the splicing plate, the support frame is arranged in a ring array, and a seat body is fixedly connected to the inner side of the support frame. The main body of the seat body is a circular structure with a groove on the top, and a motor is installed on the bottom end surface of the seat body, and an output shaft is installed on the top of the motor. The seat body and the motor together constitute a driving structure.

[0011] As a preferred embodiment, a bearing seat is installed on the output shaft installed on the top of the motor, a guide ring is fixedly connected to the outer side of the bearing seat, and the main body of the guide ring is an annular structure. The diameter of the guide ring is larger than the diameter of the bearing seat, and an anti-slip ring is fixedly connected to the top surface of the bearing seat.

[0012] As a preferred embodiment, the diameter of the anti-slip ring is smaller than the diameter of the bearing seat, and a guide shaft is installed on the inner side of the two track wheels located on the rear side, and the guide shaft is arranged horizontally, and the outer side of the guide shaft is fixedly connected to a limiting block, and the outer peripheral surface of the limiting block is provided with grooves in a circular array, and the diameter of the limiting block is larger than the diameter of the guide shaft.

[0013] As a preferred embodiment, a movable plate is installed above the base, and the specifications of the movable plate are consistent with those of the bottom plate. A guide rod is fixedly connected to the bottom end surface of the movable plate. The main body of the guide rod is a cylindrical structure, and there are four guide rods in total. The four guide rods are fixedly connected to the four corners of the bottom end surface of the movable plate in a circular array.

[0014] As a preferred embodiment, the guide rod is inserted into the base, and a spring plate is fixedly connected to the bottom end surface of the guide rod, and the diameter of the spring plate is larger than the diameter of the guide rod. The guide rod and the spring plate together constitute a reset structure. The inner opposite sides of the two movable arms are fixedly connected to a limiting rod, and the main body of the limiting rod is an L-shaped structure.

[0015] As a preferred embodiment, a spring rod is fixedly connected to the bottom end surface of the longitudinal component in the limit rod, and the limit rod is fixedly connected to the bottom end surface of the spring rod, and a through groove is opened inside the limit rod, and a protrusion is fixedly connected inside the through groove.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are:

[0017] 1. In the present invention, by providing a limit rod and an insertion rod, when the movable plate is squeezed by the tailwater elbow and moves downward, the insertion rod fixedly connected to the bottom end surface of the limit rod can be synchronously inserted into the inner position of the limit block fixedly connected to the outer side of the guide shaft to realize the clamping and limiting operation of the current limit block, so that when it is used, the track wheel installed in the side plate can be clamped and self-locked to limit the track wheel, so that the track wheel will not move along the current track. This design can realize the locking and limiting of the track wheel to avoid the situation that the device lacks an effective limiting structure after the tailwater elbow is installed and is prone to sliding.

[0018] 2. In the present invention, by providing a movable plate and a guide plate that can move up and down along the base, when the tailwater elbow is assembled above the movable plate and the fixed plate, the tailwater elbow can be lifted by the movable plate and the fixed plate of the arc structure, so that after the tailwater elbow is hoisted onto the installation and transportation device, the tailwater elbow can be stably placed without additional limiting. This design can significantly reduce the inconvenience caused by the need to limit the tailwater elbow after assembly, and significantly improve the overall practicality, stability and reliability of the device.

[0019] 3. In the present invention, by providing a movable plate and a card block, when the crowbar is inserted into the inner position of the guide frame, the movable plate can be pushed to the rear side synchronously, and when the movable plate moves to the rear side, the card block fixedly connected to the rear side of the movable plate can be pushed to the rear side synchronously, and when the card block moves to the rear side, the card block fixedly connected to the rear side of the movable plate can be inserted into the inner position of the limit rod synchronously, and the limit rod is lifted up by the card block to realize the automatic upward repulsion operation of the current limit rod, so that when it is used , it can realize the squeezing and retracting operation of the spring rod, so that when it is in use, it can be synchronously pulled out from the limit block fixedly connected to the outside of the guide shaft by using the insertion rod fixedly connected to the bottom end surface of the limit rod, so that when it is in use, it can realize the automatic unlocking operation of the current track wheel. This design can unlock the device when pushing, and when not pushing, the insertion rod is inserted into the inside of the limit block for automatic locking and limiting. This design can realize limiting on the one hand and assisting movement operation on the other hand through linkage with the unlocking rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the front and side views of the structure of the installation and transportation device of the present invention after partial structure is cut away;

[0022] Figure 2 It is a schematic diagram of the combined structure of the installation and transportation device of the present invention;

[0023] Figure 3 It is a schematic diagram of the combined structure of the movable plate and the guide rod of the installation and transportation device of the present invention;

[0024] Figure 4It is a schematic diagram of the combined structure of the moving plate and the card block of the installation and transportation device of the present invention;

[0025] Figure 5 It is a schematic diagram of the combined structure of the support frame and the seat body of the installation and transportation device of the present invention;

[0026] Figure 6 It is a schematic diagram of the combined structure of the guide shaft and the limit block of the installation and transportation device of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the installation and transportation device of the present invention from a top and side view;

[0028] Figure 8 It is a schematic diagram of the combined structure of the base and the bottom plate of the installation and transportation device of the present invention;

[0029] In the figure, 1. base; 2. reinforcing ribs; 3. side panels; 4. track wheels; 5. bottom plate; 6. splicing plate; 7. support frame; 8. seat body; 9. motor; 10. bearing seat; 11. guide ring; 12. anti-slip ring; 13. guide shaft; 14. limit block; 15. movable plate; 16. guide rod; 17. spring plate; 18. connecting rod; 19. spring rod; 20. limit rod; 21. plug rod; 22. guide frame; 23. movable plate; 24. slot; 25. slider; 26. block; 27. reset rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0031] like Figure 1-Figure 8As shown, the installation and transportation device for the tailwater elbow of a pump turbine includes: a guide frame 22, a longitudinal groove is opened inside the guide frame 22, and the guide frame 22 is provided at four locations, wherein every two laterally adjacent guide frames 22 form a group, and a moving plate 23 is installed on the inner side of the two groups of guide frames 22, and the front end of the moving plate 23 is provided with a groove in a linear array, and the groove is a clamping groove 24, and the clamping groove 24 and the moving plate 23 together form a pushing structure. A block 26 is fixedly connected to the rear end surface of the movable plate 23, and the main body of the block 26 is an inclined structure and matches the limit rod 20, and a slider 25 is fixedly connected to the outer side of the movable plate 23, and four sliders 25 are fixedly connected to the outer side of each movable plate 23 in opposite directions. The movable plate 23 is slidably connected to the longitudinal groove opened in the guide frame 22 through the slider 25 fixedly connected to its outer side, and the movable plate 23 is connected to the guide frame 22 through a reset rod 27, and the main body of the reset rod 27 is a telescopic structure with a spring, and an insertion rod 21 is fixedly connected to the bottom end surface of the limit rod 20, and the main body of the insertion rod 21 is a cylindrical structure, and the diameter of the insertion rod 21 is smaller than the diameter of the limit rod 20, and the insertion rod 21 and the limit rod 20 together constitute a limiting structure for the track wheel 4.

[0032] Among them, the guide frame 22 is fixedly connected to the front end surface of the splicing plate 6, and the splicing plates 6 are provided at four places, and the four splicing plates 6 are arranged in a circular array, and the inner side of the four splicing plates 6 is also fixedly connected to the base 1, the main body of the base 1 is a thick upper and thin lower structure, and the outer side of the base 1 is oppositely fixedly connected with two reinforcing ribs 2, the reinforcing ribs 2 are arranged longitudinally, and the reinforcing ribs 2 and the base 1 together constitute a supporting structure, and the bottom end surface of the base 1 is fixedly connected with a side panel 3, and the side panels 3 are provided at two places, and the two side panels 3 are fixedly connected to the left and right sides of the bottom end surface of the base 1 in a linear array, and the inner sides of the two side panels 3 are also rotatably connected with track wheels 4, and the track wheels 4 and the side panels 3 together constitute a supporting structure for the base 1.

[0033] Among them, the inner side of the splicing plate 6 is fixedly connected with a support frame 7, the support frame 7 is arranged in a ring array, and the inner side of the support frame 7 is fixedly connected with a seat body 8, the main body of the seat body 8 is a circular structure with a groove on the top, and a motor 9 is installed on the bottom end surface of the seat body 8, and an output shaft is installed on the top of the motor 9. The seat body 8 and the motor 9 together constitute a driving structure, and a bearing seat 10 is installed on the output shaft installed on the top of the motor 9. A guide ring 11 is fixedly connected to the outer side of the bearing seat 10, and the main body of the guide ring 11 is an annular structure, the diameter of the guide ring 11 is larger than the diameter of the bearing seat 10, and an anti-slip ring 12 is fixedly connected to the top surface of the bearing seat 10.

[0034] Among them, the diameter of the anti-slip ring 12 is smaller than the diameter of the bearing seat 10, and a guide shaft 13 is installed on the inner side of the two track wheels 4 located on the rear side, and the guide shaft 13 is arranged horizontally, and the outer side of the guide shaft 13 is fixedly connected to a limit block 14, and the outer peripheral surface of the limit block 14 is provided with a circular array of notches, and the diameter of the limit block 14 is larger than the diameter of the guide shaft 13. A movable plate 15 is installed above the base 1, and the specifications of the movable plate 15 are consistent with those of the bottom plate 5. A guide rod 16 is fixedly connected to the bottom end surface of the movable plate 15. The main body of the guide rod 16 is a cylindrical structure, and the guide rod 16 is provided at four locations, and the four guide rods 16 are fixedly connected to the four corners of the bottom end surface of the movable plate 15 in a circular array.

[0035] Among them, the guide rod 16 is inserted into the base 1, and a spring plate 17 is fixedly connected to the bottom end surface of the guide rod 16, and the diameter of the spring plate 17 is larger than the diameter of the guide rod 16. The guide rod 16 and the spring plate 17 together constitute a reset structure. The limiting rod 20 is fixedly connected to the opposite inner sides of the two movable plates 15, and the main body of the limiting rod 20 is an L-shaped structure. A spring rod 19 is fixedly connected to the bottom end surface of the longitudinal member in the limiting rod 20, and the limiting rod 20 is fixedly connected to the bottom end surface of the spring rod 19, and a through groove is opened inside the limiting rod 20, and a protrusion is fixedly connected inside the through groove.

[0036] When in use, when the tailwater elbow of the pump turbine is installed, the base 1 can be placed on the track laid inside the workshop by using the track wheel 4 installed in the side plate 3, and the moving operation is performed by using the contact between the track wheel 4 and the track. At this time, the tailwater elbow is hoisted to the top of the base 1 arranged on the outside of the splicing plate 6 by using an external hoisting machine, and when the tailwater elbow is installed, it can be synchronously placed on the bottom plate 5 fixedly connected to the top surface of the base 1, and synchronously placed on the movable plate 15 fixedly connected to the top surface of the guide rod 16. After the tailwater elbow is installed, if it is necessary to adjust the deflection of the current tailwater elbow within a small range, the bearing seat 10 can be driven to rotate by starting the motor 9 installed on the bottom surface of the seat body 8;

[0037] When the bearing seat 10 rotates, the guide ring 11 fixedly connected to the outer peripheral surface of the bearing seat 10 can be synchronously rotated along the annular groove provided in the seat body 8, and when the bearing seat 10 and the guide ring 11 rotate, the friction transmission operation of the current tailwater elbow can be synchronously realized by utilizing the contact between the anti-slip ring 12 fixedly connected to the top surface of the bearing seat 10 and the tailwater elbow, so that the tailwater elbow can be slightly adjusted in direction to more conveniently dock and connect with the subsequent pipeline, so that when it is used, the stability during assembly can be significantly improved;

[0038] And when the splicing plate 6 is assembled, the support frame 7 and the support limit of the seat body 8 fixedly connected to the inner side of the splicing plate 6 can be used to assist the lifting operation of the tailwater elbow, so that the overall stability of the tailwater elbow can be significantly improved when the tailwater elbow is assembled, and when the tailwater elbow is placed on the movable plate 15 fixedly connected to the top surface of the guide rod 16, the movable plate 15 can be synchronously squeezed downward, and the spring plate 17 fixedly connected to the bottom surface of the guide rod 16 can be squeezed and pulled synchronously, and when the movable plate 15 moves downward, the limit rod 20 fixedly connected to the outer side of the movable plate 15 can be synchronously squeezed downward;

[0039] When the limit rod 20 moves downward, the insertion rod 21 fixedly connected to the bottom end surface of the limit rod 20 can be synchronously driven to move downward, and when the insertion rod 21 moves downward, it can be synchronously inserted into the inner position of the limit block 14 fixedly connected to the outer side of the guide shaft 13 to clamp and limit the track wheel 4 installed in the side plate 3, so that the track wheel 4 cannot move along the guide rail laid inside the workshop;

[0040] When it is necessary to push the transport trolley and transport the tailwater elbow placed on the bottom plate 5 and the movable plate 15, a hand-held crowbar or other instrument can be inserted into the guide frame 22 fixedly connected to the front end surface of the splicing plate 6, and after the crowbar is inserted, the movable plate 23 installed in the two guide frames 22 can be pushed synchronously, and when the crowbar is inserted, it can be synchronously stabilized with the internal position of the slot 24 opened on the front end surface of the movable plate 23, and when the movable plate 23 moves to the rear side, the slider 25 fixedly connected to the outside of the movable plate 23 can be synchronously used to move along the slider opened on the guide frame 2 2, and when the movable plate 23 moves to the rear side, it can be synchronously inserted into the inner position of the missing groove opened in the limit rod 20, and the limit rod 20 can be synchronously repelled upward, so that when the limit rod 20 moves to the upward side, the spring rod 19 installed on the bottom end surface of the connecting rod 18 can be squeezed, so that the limit rod 20 can synchronously drive the insertion rod 21 fixedly connected to the west thereof to be pulled out from the inside of the limit block 14 fixedly connected to the outside of the guide shaft 13, so that the entire device can be moved along the track by the track wheel 4 set in the side plate 3 to realize the traveling assembly operation.

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An installation and transportation device for a tailwater elbow of a pump turbine, characterized in that: The invention comprises a guide frame (22), wherein a longitudinal groove is provided inside the guide frame (22), and the guide frame (22) is provided at four locations, wherein two transversely adjacent guide frames (22) form a group, and a movable plate (23) is installed on the inner side of the two groups of guide frames (22), and the front end of the movable plate (23) is provided with a groove in a linear array, and the groove is a clamping groove (24), and the clamping groove (24) and the movable plate (23) together form a pushing structure, and a clamping block (26) is fixedly connected to the rear end surface of the movable plate (23), and the clamping block (26) ) has a main body of an inclined structure and matches the limit rod (20), and a slider (25) is fixedly connected to the outer side of the movable plate (23), and four sliders (25) are fixedly connected to the outer side of each movable plate (23) in opposite directions, and the movable plate (23) is slidably connected in a longitudinal groove provided in the guide frame (22) through the sliders (25) fixedly connected to the outer side thereof, and the movable plate (23) and the guide frame (22) are connected through a reset rod (27), and the main body of the reset rod (27) is a telescopic structure with a spring.

2. The installation and transportation device for the tailwater elbow of a pump-turbine according to claim 1, characterized in that: The guide frame (22) is fixedly connected to the front end surface of the splicing plate (6), and the splicing plates (6) are provided at four locations, the four splicing plates (6) are arranged in a ring array, and the inner sides of the four splicing plates (6) are also fixedly connected to a base (1), the main body of the base (1) is a structure with a thick upper part and a thin lower part, and the outer side of the base (1) is fixedly connected to two reinforcing ribs (2) in opposite directions.

3. The installation and transportation device for the tailwater elbow of a pump-turbine according to claim 2, characterized in that: The reinforcing ribs (2) are arranged longitudinally, and the reinforcing ribs (2) and the base (1) together form a supporting structure, and a side plate (3) is fixedly connected to the bottom end surface of the base (1), and the side plates (3) are provided at two locations, and the two side plates (3) are fixedly connected to the left and right sides of the bottom end surface of the base (1) in a linear array, and the inner sides of the two side plates (3) are also rotatably connected to track wheels (4), and the track wheels (4) and the side plates (3) together form a supporting structure for the base (1).

4. The installation and transportation device for the tailwater elbow of a pump-turbine according to claim 2, characterized in that: The inner side of the splicing plate (6) is fixedly connected to a support frame (7), the support frame (7) is arranged in a ring array, and the inner side of the support frame (7) is fixedly connected to a seat body (8), the main body of the seat body (8) is a circular structure with a groove on the top, and a motor (9) is installed on the bottom end surface of the seat body (8), and an output shaft is installed on the top of the motor (9), and the seat body (8) and the motor (9) together constitute a driving structure.

5. The installation and transportation device for the tailwater elbow of a pump turbine according to claim 4, characterized in that: A bearing seat (10) is installed on the output shaft installed at the top end of the motor (9), a guide ring (11) is fixedly connected to the outer side of the bearing seat (10), and the main body of the guide ring (11) is an annular structure, the diameter of the guide ring (11) is larger than the diameter of the bearing seat (10), and an anti-slip ring (12) is fixedly connected to the top end surface of the bearing seat (10).

6. The installation and transportation device for the tailwater elbow of a pump-turbine according to claim 6, characterized in that: The diameter of the anti-slip ring (12) is smaller than the diameter of the bearing seat (10), and a guide shaft (13) is installed on the inner side of the two track wheels (4) located at the rear side, and the guide shaft (13) is arranged horizontally, and the outer side of the guide shaft (13) is fixedly connected to a limit block (14), and the outer peripheral surface of the limit block (14) is provided with grooves in a circular array, and the diameter of the limit block (14) is larger than the diameter of the guide shaft (13).

7. The installation and transportation device for the tailwater elbow of a pump-turbine according to claim 3, characterized in that: A movable plate (15) is installed above the base (1), and the specifications of the movable plate (15) are consistent with those of the bottom plate (5). A guide rod (16) is fixedly connected to the bottom end surface of the movable plate (15). The main body of the guide rod (16) is a cylindrical structure, and the guide rod (16) is provided at four locations. The four guide rods (16) are fixedly connected to the four corners of the bottom end surface of the movable plate (15) in a circular array.

8. The installation and transportation device for the tailwater elbow of a pump-turbine according to claim 7, characterized in that: The guide rod (16) is inserted into the base (1), and a spring plate (17) is fixedly connected to the bottom end surface of the guide rod (16), and the diameter of the spring plate (17) is larger than the diameter of the guide rod (16). The guide rod (16) and the spring plate (17) together form a reset structure. The inner opposite sides of the two movable parts (15) are fixedly connected to a limiting rod (20), and the main body of the limiting rod (20) is an L-shaped structure.

9. The installation and transportation device for the tailwater elbow of a pump-turbine according to claim 8, characterized in that: A spring rod (19) is fixedly connected to the bottom end surface of the longitudinal component in the limiting rod (20), and the limiting rod (20) is fixedly connected to the bottom end surface of the spring rod (19), and a through groove is provided inside the limiting rod (20), and a protrusion is fixedly connected inside the through groove.

10. The installation and transportation device for the tailwater elbow of a pump turbine according to claim 9, characterized in that: The bottom end surface of the limiting rod (20) is fixedly connected to an insertion rod (21), the main body of the insertion rod (21) is a cylindrical structure, and the diameter of the insertion rod (21) is smaller than the diameter of the limiting rod (20), and the insertion rod (21) and the limiting rod (20) together form a limiting structure for the track wheel (4).

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