Hydropower station heavy hammer side force booster maintenance platform and equipment

Abstract

This invention provides a maintenance platform and equipment for a hydropower station's counterweight-side servo drive. The maintenance platform includes a maintenance frame and a fixing assembly. The maintenance frame has a multi-layer truss structure and includes multiple connecting rods and multiple adjustable locking components. The connecting rods are connected in pairs via the adjustable locking components. The fixing assembly includes multiple adjustable-length top rods and multiple adjustable-length lateral support rods. The adjustable-length top rods are spaced apart on the top of the maintenance frame, with one end connected to the maintenance frame and the other end abutting against the counterweight support. The multiple adjustable-length lateral support rods are respectively located on opposite sides of the maintenance frame, with one end connected to the maintenance frame and the other end abutting against the side wall of the counterweight chamber. This invention discloses a hydropower station counterweight-side servo drive maintenance platform that is easy to install and improves safety during maintenance.

Description

Technical Field

[0001] This invention relates to the field of hydropower station maintenance technology, specifically to a hydropower station counterweight side servo maintenance platform and a hydropower station counterweight side servo maintenance device. Background Technology

[0002] In the maintenance of hydropower station servoir relays, the counterweight side servoir, as a crucial component of the regulating mechanism, requires careful condition checks, component replacement, and adjustments. However, the extremely confined space on the counterweight side makes scaffolding installation exceptionally difficult, hindering the provision of a stable working platform for maintenance personnel. Specifically, the limited space makes it challenging to find suitable leverage points for the scaffolding's support legs, resulting in a complex and time-consuming installation process. Furthermore, even if the scaffolding is properly installed, its stability is significantly compromised, posing a serious safety hazard and greatly increasing the risk of falls and other accidents involving maintenance personnel. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. This invention provides a maintenance platform and equipment for the counterweight side servo of a hydropower station, which facilitates installation and improves safety during maintenance.

[0004] The present invention provides a maintenance platform for a hydropower station counterweight side relay, comprising a maintenance frame and a fixing assembly. The maintenance frame has a multi-layer truss structure and includes multiple connecting rods and multiple adjustable locking components. The multiple connecting rods are connected to each other through the adjustable locking components. The fixing assembly includes adjustable-length top rods and adjustable-length lateral support rods. Multiple adjustable-length top rods and adjustable-length lateral support rods are provided. The multiple adjustable-length top rods are spaced apart on the top of the maintenance frame. One end of the adjustable-length top rod is connected to the maintenance frame, and the other end abuts against the counterweight support. The multiple adjustable-length lateral support rods are respectively provided on opposite sides of the maintenance frame. One end of the adjustable-length lateral support rod is connected to the maintenance frame, and the other end abuts against the side wall of the counterweight chamber.

[0005] In summary, the hydropower station counterweight side servo motor maintenance platform provided by this invention, through the cooperation of the maintenance frame and fixing components, can quickly and flexibly construct a stable maintenance work platform inside the counterweight chamber. This maintenance platform not only achieves precise docking with the counterweight support, ensuring accurate positioning during maintenance and facilitating installation, but also provides solid and reliable support for the entire maintenance operation through its unique fixing mechanism, effectively preventing any unstable factors during the operation.

[0006] In some embodiments, the adjustable locking member includes a connecting body, a positioning rod, and a locking rod. The connecting body has a through hole and a slot, which are used for inserting the connecting rod. The straight line of the extension direction of the connecting rod in the through hole and the straight line of the extension direction of the connecting rod in the slot intersect each other. The positioning rod is threaded to the inner wall of the through hole, and the end of the positioning rod abuts against the connecting rod. The locking rod is rotatably disposed at the opening of the slot and is used to fix the connecting rod in the slot.

[0007] In some embodiments, the locking rod includes a first rod and a second rod, the connecting body has a first opening and a second opening, the first opening and the second opening are disposed opposite to each other on both sides of the slot, the first rod is rotatably connected to the first opening, the first rod is provided with an insertion hole, the first rod and the second rod can rotate towards or away from each other, one end of the second rod is rotatably connected to the second opening, and the other end of the second rod is movably inserted into the insertion hole.

[0008] In some embodiments, the maintenance platform for the counterweight side relay of the hydropower station further includes multiple pedals, which are spaced apart along the height direction of the maintenance frame, and a ladder is provided between two adjacent pedals.

[0009] In some embodiments, the maintenance rack further includes a plurality of height support rods and a plurality of height positioners. Two of the plurality of height support rods are respectively disposed on opposite sides of the maintenance rack. One end of the pedal is connected to one of the two height support rods, and the other end of the pedal is connected to the other of the height support rods. The height positioner is fixed to a connecting rod below the height support rod.

[0010] In some embodiments, the floor height locator includes a fixing ring and a positioning screw. The fixing ring has a fixing cavity, the connecting rod passes through the fixing cavity, and the positioning screw is rotatably inserted through the side wall of the fixing cavity. The positioning screw is used to abut against the connecting rod in the fixing cavity.

[0011] In some embodiments, the maintenance platform for the counterweight side relay of the hydropower station further includes at least one work platform. The work platform is provided with an extension plate and a pressure rod. The extension plate spans across the maintenance frame, and the length of the extension plate is greater than the length or width of the maintenance frame. The two ends of the pressure rod are connected to the connecting rod, and the pressure rod is pressed against the extension plate.

[0012] In some embodiments, the pressure rod includes a rod body and two locking members, which are disposed opposite to each other at both ends of the rod body. Each locking member includes a locking ring and a locking rod. The locking ring has a locking cavity, and the connecting rod is inserted into the locking cavity. The locking rod is threaded to the side wall of the locking cavity and abuts against the connecting rod inside the locking cavity.

[0013] In some embodiments, the fixing assembly further includes an adjustable cable, which includes a rope, a first cable rod, a second cable rod, and a tightening rod. The first cable rod is connected to the inspection frame via a rope, and the second cable rod is connected to the inner wall of the counterweight chamber via a rope. The first cable rod and the second cable rod are provided with external threads, and the tightening rod is provided with internal threads that match the external threads.

[0014] In addition, the hydropower station counterweight side servo maintenance equipment provided by the present invention includes the hydropower station counterweight side servo maintenance platform provided by any of the above claims. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the maintenance platform for the counterweight side servo of a hydropower station installed on the counterweight side servo, according to an embodiment of the present invention.

[0016] Figure 2 This is a front view schematic diagram of a hydropower station counterweight side relay maintenance platform provided in an embodiment of the present invention.

[0017] Figure 3 This is a side view schematic diagram of a hydropower station counterweight servo maintenance platform provided in an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the adjustable-length lateral support rod in the maintenance platform for the counterweight side relay of a hydropower station provided in an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the structure of the high-level positioner in the middle layer of the maintenance platform for the counterweight side relay of a hydropower station provided in an embodiment of the present invention.

[0020] Figure 6 This is a top view schematic diagram of a hydropower station counterweight side relay maintenance platform provided in an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the structure of the pressure rod in the maintenance platform of the counterweight side relay of a hydropower station provided in an embodiment of the present invention.

[0022] Figure 8 This is a schematic diagram of the adjustable rope structure in the maintenance platform for the counterweight side relay of a hydropower station provided in an embodiment of the present invention.

[0023] Attached reference numerals: 100, Maintenance platform for the counterweight side relay device of the hydropower station; 200, Relay device; 210, Counterweight; 220, Counterweight support;

[0024] 10. Inspection frame; 11. Connecting rod; 111. Upright column; 112. Horizontal rod; 113. Longitudinal rod; 12. Adjustable locking element; 121. Connector; 1211. Through hole; 1212. Slot; 1213. First opening; 1214. Second opening; 122. Positioning rod; 123. Locking rod; 1231. First rod; 1232. Second rod; 1233. Insertion hole;

[0025] 20. Fixing assembly; 21. Adjustable length top rod; 22. Adjustable length side support rod; 231. First rod cylinder; 2311. Sliding cavity; 2312. Threaded sleeve; 232. Second rod cylinder; 2321. Abutment seat; 2322. Rubber pad; 233. Threaded rod;

[0026] 31. Step; 32. Ladder; 33. Floor height support rod; 34. Floor height positioner; 341. Fixing ring; 342. Positioning screw; 343. Fixing cavity;

[0027] 41. Workbench; 42. Extension plate; 43. Pressure bar; 431. Rod body; 432. Locking component; 4321. Locking ring; 4322. Locking rod;

[0028] 50. Adjustable cable; 51. Rope; 52. First cable rod; 53. Second cable rod; 54. Tightening rod. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1 to 8As shown, an embodiment of the present invention provides a maintenance platform 100 for a hydropower station's counterweight side relay, comprising a maintenance frame 10 and a fixing assembly 20. The maintenance frame 10 has a multi-layer truss structure and includes multiple connecting rods 11 and multiple adjustable locking elements 12. The multiple connecting rods 11 are connected to each other through the adjustable locking elements 12. The fixing assembly 20 includes adjustable-length top rods 21 and adjustable-length lateral support rods 22. Multiple adjustable-length top rods 21 are provided, spaced apart on the top of the maintenance frame 10. One end of the adjustable-length top rod 21 is connected to the maintenance frame 10, and the other end abuts against the counterweight support 220. Multiple adjustable-length lateral support rods 22 are respectively provided on opposite sides of the maintenance frame 10. One end of the adjustable-length lateral support rod 22 is connected to the maintenance frame 10, and the other end abuts against the side wall of the counterweight chamber.

[0031] Specifically, the hydropower station servo unit 200 is a key actuator of the speed control system, used to precisely control the opening of the turbine guide vanes, thereby adjusting the unit's output. The "counterweight side" specifically refers to the installation area of ​​the servo unit's counterweight system, which typically has a counterweight support 220. The counterweight 210 is suspended from one side of the servo unit 200 body via the support; the counterweight side can also be called the counterweight chamber. The counterweight-side servo unit refers to the servo unit located on one side of the counterweight. During maintenance of the counterweight-side servo unit 200, the maintenance frame 10 adopts a multi-layer truss structure, which can be freely erected in the counterweight chamber and supported at multiple points by the fixing components 20, completing the installation and positioning of the maintenance platform.

[0032] The fixing component 20 achieves a two-dimensional adjustment mechanism through adjustable-length top rods 21 and adjustable-length lateral support rods 22. Specifically, the adjustable-length top rods 21 are arranged at the top of the maintenance frame 10. Adjusting the length of the adjustable-length top rods 21 to abut against the top of the counterweight support 220 ensures the positioning of the maintenance frame 10 in the height direction. The adjustable-length lateral support rods 22 can be arranged opposite each other in the front-back or left-right directions of the maintenance frame 10 and spaced apart along the height direction of the maintenance frame 10, thereby forming a multi-layered support network. This provides effective support and effectively resists tilting or swaying that may be caused by external forces or the platform's own weight, ensuring the safe conduct of maintenance operations. In this embodiment, the adjustable-length lateral support rods extend along the front-back direction of the maintenance frame.

[0033] In summary, the hydropower station counterweight side relay maintenance platform 100 provided by this invention, through the cooperation of the maintenance frame 10 and the fixing component 20, can quickly and flexibly construct a stable maintenance work platform inside the counterweight chamber. This maintenance platform not only achieves precise docking with the counterweight support 220, ensuring accurate positioning during maintenance, but also provides solid and reliable support for the entire maintenance operation through its unique fixing mechanism, effectively preventing any unstable factors during the operation.

[0034] like Figure 2 and Figure 3 As shown, in this embodiment, the connecting rod 11 may include a column 111, a horizontal rod 112, and a vertical rod 113. The column 111 extends along the height direction of the maintenance frame 10, the horizontal rod 112 extends along the left-right direction of the maintenance frame 10, and the vertical rod 113 extends along the front-back direction of the maintenance frame 10. The column 111, the horizontal rod 112, and the vertical rod 113 are assembled together by an adjustable locking member 12 to complete the multi-layer truss structure.

[0035] like Figure 3 and Figure 4 As shown, the length-adjustable lateral support rod and the length-adjustable top rod can have the same structure. That is, both the length-adjustable lateral support rod and the length-adjustable top rod include a first rod cylinder 231, a second rod cylinder 232, and a threaded rod 233. The first rod cylinder has a sliding cavity 2311. One end of the second rod cylinder is slidably disposed in the sliding cavity, and the other end of the second rod cylinder has an abutment seat 2321 with a rubber pad 2322 on it. The first rod cylinder has a threaded sleeve 2312, which cooperates with the threaded rod, and one end of the threaded rod is connected to the second rod cylinder. During the rotation of the threaded rod within the threaded sleeve, the threaded rod drives the second rod cylinder to move relative to the first rod cylinder. Of course, in some embodiments, the length-adjustable lateral support rod and the length-adjustable top rod can also be hydraulic rods or other components, which will not be described in detail here. It should be noted that in some embodiments, the length-adjustable lateral support rod and the length-adjustable top rod can also have different structures.

[0036] like Figure 4 As shown, in some embodiments, the adjustable locking member 12 includes a connecting body 121, a positioning rod 122, and a locking rod 123. The connecting body 121 is provided with a through hole 1211 and a slot 1212. The through hole 1211 and the slot 1212 are used for inserting the connecting rod 11. The straight line of the extension direction of the connecting rod 11 in the through hole 1211 and the straight line of the extension direction of the connecting rod 11 in the slot 1212 intersect each other. The positioning rod 122 is threaded to the inner wall of the through hole 1211, and the end of the positioning rod 122 abuts against the connecting rod 11. The locking rod 123 is rotatably disposed at the opening of the slot 1212 and is used to fix the connecting rod 11 in the slot 1212.

[0037] Specifically, when assembling the two connecting rods 11 to be connected, one of the connecting rods 11 can be inserted into the through hole 1211, and the positioning rod 122 can be screwed toward the connecting rod 11 in the through hole 1211 to fix it in the through hole 1211; the other of the two connecting rods 11 is inserted into the slot 1212, and the locking rod 123 can rotate relative to the opening of the slot 1212 to seal the opening of the slot 1212, thereby fixing the connecting rod 11 in the slot 1212. The entire assembly process does not require complicated tools or cumbersome steps, and can achieve a stable connection and flexible adjustment between the connecting rods 11, providing strong support and adjustment capabilities for the maintenance frame 10 structure of the hydropower station counterweight side relay maintenance platform 100.

[0038] Furthermore, the locking rod 123 is rotatably positioned at the opening of the slot 1212. By rotating the locking rod 123, it can be precisely engaged in a specific position of the connecting rod 11 within the slot 1212, thereby achieving a stable lock on the connecting rod 11. This ensures the stability of the connecting rod 11 within the slot 1212 and allows for easy operation when adjustment or disassembly is required.

[0039] Furthermore, the locking rod 123 includes a first rod 1231 and a second rod 1232. The connecting body 121 has a first opening 1213 and a second opening 1214. The first opening 1213 and the second opening 1214 are disposed opposite to each other on both sides of the slot 1212. The first rod 1231 is rotatably connected to the first opening 1213. The first rod 1231 is provided with an insertion hole 1233. The first rod 1231 and the second rod 1232 can rotate towards each other or away from each other. One end of the second rod 1232 is rotatably connected to the second opening 1214, and the other end of the second rod 1232 is inserted into the insertion hole 1233.

[0040] Specifically, the first rod 1231 is securely mounted to the first opening 1213 via a rotatable connection, allowing it to rotate freely within a certain range to accommodate the fixing requirements of different connecting rods 11. A cleverly designed insertion hole 1233 is provided on the first rod 1231. This insertion hole 1233 not only provides a position for the insertion of the second rod 1232, achieving locking of the second rod, but also, through its precise size and shape design, ensures a stable and reliable connection between the second rod 1232 and the first rod 1231.

[0041] One end of the second rod 1232 is rotatably connected to the second opening 1214, allowing the second rod 1232 to rotate freely within a certain range, forming a rotational relationship with the first rod 1231, either facing each other or in opposite directions. When it is necessary to fix the connecting rod 11 in the slot 1212, the operator only needs to rotate the first rod 1231 and the second rod 1232 so that they rotate towards each other until the other end of the second rod 1232 is precisely inserted into the insertion hole 1233 on the first rod 1231. At this time, the first rod 1231 and the second rod 1232 form a stable locking structure, firmly fixing the connecting rod 11 in the slot 1212.

[0042] Conversely, when it is necessary to adjust or disassemble the connecting rod 11, the operator only needs to rotate the first rod 1231 and the second rod 1232 in the opposite direction until the second rod 1232 disengages from the socket 1233. At this time, the locking rod 123 loses its locking effect on the connecting rod 11, and the connecting rod 11 can be freely removed from the slot 1212 or adjusted.

[0043] like Figure 1 Figure 2 and Figure 3 As shown, in some embodiments, the maintenance platform 100 for the counterweight-side relay of a hydropower station includes multiple footboards 31, which are spaced apart along the height direction of the maintenance frame 10. A ladder 32 is provided between adjacent footboards 31. During maintenance, maintenance personnel can easily move between footboards 31 at different heights using these ladders 32, thereby achieving comprehensive maintenance and repair of all parts of the counterweight-side relay 200. That is, the multiple footboards are spaced apart along the height direction of the maintenance frame 10 to form multiple rotating platforms along the height direction of the maintenance frame, facilitating the climbing of the maintenance frame by maintenance personnel.

[0044] Furthermore, the maintenance rack 10 also includes multiple height support rods 33 and multiple height positioners 34, with each pair of height support rods 33 positioned on opposite sides of the maintenance rack 10. One end of a pedal 31 is connected to one of the two height support rods 33, and the other end of the pedal 31 is connected to the other of the height support rods 33. The height positioner 34 is fixed to a connecting rod 11 below the height support rod 33.

[0045] Furthermore, such as Figure 5 As shown, the floor height locator 34 includes a fixing ring 341 and a positioning screw 342. The fixing ring 341 has a fixing cavity 343. The connecting rod 11 passes through the fixing cavity 343. The positioning screw 342 is rotatably inserted through the side wall of the fixing cavity 343. The positioning screw 342 is used to abut against the connecting rod 11 inside the fixing cavity 343.

[0046] Specifically, multiple floor height support rods 33 are arranged on opposite sides of the maintenance frame 10, forming a stable support frame in pairs. These floor height support rods 33 not only support the pedal 31, but also cooperate with the floor height positioner 34 to achieve precise and stable positioning of the pedal 31 in the height direction, improving safety during the maintenance process.

[0047] Furthermore, the hydropower station counterweight side relay maintenance platform 100 provided by this invention is safer than the fixed method of the pedal 31 straddling two longitudinal or transverse bars, and the spacing of the pedal 31 in the height direction is more convenient to adjust. That is to say, when it is necessary to adjust the height of the pedal 31, the maintenance personnel need to operate the floor height support rod 33 and the floor height locator 34 to realize the raising, lowering and fixing of the pedal 31. While ensuring the safety of the maintenance platform, it also improves flexibility and avoids the safety risks that may be caused by improper height adjustment.

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, the maintenance platform 100 for the counterweight side relay of the hydropower station further includes at least one work platform 41. The work platform 41 is provided with an extension plate 42 and a pressure rod 43. The extension plate 42 spans across the maintenance frame 10, and its length is greater than the length or width of the maintenance frame 10. The two ends of the pressure rod 43 are connected to a connecting rod 11, and the pressure rod 43 is pressed against the extension plate 42. In this embodiment, two work platforms 41 are provided.

[0049] The extension plate 42, straddling the maintenance rack 10, not only effectively expands the usable area of ​​the workbench 41 but also provides maintenance personnel with a more flexible operating platform. It is worth noting that the length of the extension plate 42 has been carefully calculated and intentionally designed to exceed the length or width of the maintenance rack 10. This design allows the extension plate 42 to extend beyond the edge of the maintenance rack 10, greatly facilitating maintenance personnel when handling components located at the edge or in special positions of the maintenance rack 10.

[0050] When maintenance personnel are working on the workbench 41, the pressure bar 43 can effectively prevent the extension plate 42 from shaking or shifting due to uneven force, thus ensuring the smooth progress of maintenance work. At the same time, the pressure bar 43 can also be finely adjusted according to the needs of maintenance work to adapt to extension plates 42 of different shapes and sizes, further enhancing the versatility and adaptability of the workbench 41.

[0051] Furthermore, such as Figure 7As shown, the pressure rod 43 includes a rod body 431 and two locking members 432. The two locking members 432 are disposed opposite to each other at both ends of the rod body 431. Each locking member 432 includes a locking ring 4321 and a locking rod 4322. The locking ring 4321 has a locking cavity. The connecting rod 11 is inserted into the locking cavity. The locking rod 4322 is threaded to the side wall of the locking cavity and abuts against the connecting rod 11 inside the locking cavity.

[0052] Specifically, once the connecting rod 11 is inserted into the locking cavity, the locking rod 4322 performs its crucial locking function. The locking rod 4322 is securely fixed to the side wall of the locking cavity via a threaded connection, with one end tightly abutting against the connecting rod 11 inside the locking cavity. By rotating the locking rod 4322, its position within the locking cavity can be finely adjusted, thereby achieving a stable lock on the connecting rod 11. This design not only ensures a secure and reliable connection between the pressure rod 43 and the connecting rod 11 but also allows for easy adjustment or disassembly of the pressure rod 43.

[0053] Additionally, it should be noted that in this embodiment, the floor height support rod 33 can have the same structure as the pressure rod 43, which can simplify the structural complexity of the entire maintenance platform and improve the versatility and interchangeability of the components. The specific structure of the floor height support rod 33 will not be described here.

[0054] like Figure 8 As shown, in some embodiments, the fixing assembly 20 further includes an adjustable cable 50, which includes a rope 51, a first cable rod 52, a second cable rod 53, and a tightening rod 54. The first cable rod 52 is connected to the maintenance frame 10 via the rope 51, and the second cable rod 53 is connected to the inner wall of the counterweight chamber via the rope 51. The first cable rod 52 and the second cable rod 53 are provided with external threads, and the tightening rod 54 is provided with internal threads that match the external threads.

[0055] In other words, when the maintenance platform needs to be erected inside the counterweight chamber, the operator can fine-tune the tension of the rope 51 by adjusting the position of the tightening rod 54, so that the adjustable cable 50 can fit tightly between the maintenance frame 10 and the inner wall of the counterweight chamber. This design not only enhances the stability of the maintenance platform inside the counterweight chamber, but also allows the platform to be flexibly adjusted according to different spatial layouts and stress requirements.

[0056] In addition, one embodiment of the present invention also provides a maintenance device for a hydropower station counterweight side servo 200, which includes the hydropower station counterweight side servo servo maintenance platform 100 provided in any of the above embodiments. The implementation principle and technical effects of the hydropower station counterweight side servo 200 maintenance device provided in this application embodiment are the same as those of the aforementioned hydropower station counterweight side servo servo maintenance platform 100 embodiment. For the sake of brevity, any parts not mentioned in the device embodiment section can be referred to the corresponding content in the aforementioned hydropower station counterweight side servo servo maintenance platform 100 embodiment.

[0057] In some embodiments, the maintenance equipment for the counterweight side servo motor 200 of the hydropower station may also include components such as lighting and a power supply. The lighting and power supply can be installed on the work platform 41 of the maintenance platform. The lighting illuminates the maintenance area, providing sufficient light for maintenance personnel and preventing misoperation or safety hazards caused by insufficient light. The power supply provides stable power support for the lighting and other maintenance equipment that may be needed.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] In this invention, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A maintenance platform for the counterweight side servo motor of a hydropower station, characterized in that, The system includes a maintenance frame and a fixing assembly. The maintenance frame has a multi-layer truss structure and includes multiple connecting rods, multiple adjustable locking elements, and at least one work platform. The multiple connecting rods are connected to each other via the adjustable locking elements. The fixing assembly includes multiple length-adjustable top rods and length-adjustable lateral support rods. Multiple length-adjustable top rods are spaced apart on the top of the maintenance frame. One end of each length-adjustable top rod is connected to the maintenance frame, and the other end abuts against a counterweight support. Multiple length-adjustable lateral support rods are respectively located on opposite sides of the maintenance frame. One end of each length-adjustable lateral support rod is connected to the maintenance frame, and the other end abuts against the side wall of the counterweight chamber. The adjustable locking component includes a connecting body, a positioning rod, and a locking rod. The connecting body has a through hole and a slot, which are used for inserting the connecting rod. The straight line of the extension direction of the connecting rod in the through hole and the straight line of the extension direction of the connecting rod in the slot intersect each other. The positioning rod is threaded to the inner wall of the through hole, and the end of the positioning rod abuts against the connecting rod. The locking rod is rotatably disposed at the opening of the slot and is used to fix the connecting rod in the slot. The maintenance frame also includes multiple height support rods and multiple height positioners. Two of the multiple height support rods are respectively arranged on opposite sides of the maintenance frame. Each height positioner includes a fixing ring and a positioning screw. The fixing ring has a fixing cavity, and the connecting rod passes through the fixing cavity. The positioning screw is rotatably inserted through the side wall of the fixing cavity and is used to abut against the connecting rod in the fixing cavity. The workbench is provided with an extension plate and a pressure rod. The extension plate spans across the maintenance frame. The two ends of the pressure rod are connected to the connecting rod, and the pressure rod is pressed against the extension plate. The pressure rod includes a rod body and two locking components. The two locking components are disposed opposite to each other at both ends of the rod body. Each locking component includes a locking ring and a locking rod. The locking ring has a locking cavity. The connecting rod is inserted into the locking cavity. The locking rod is threaded to the side wall of the locking cavity and abuts against the connecting rod inside the locking cavity.

2. The maintenance platform for the counterweight side relay device of a hydropower station according to claim 1, characterized in that, The locking rod includes a first rod and a second rod. The connecting body has a first opening and a second opening. The first opening and the second opening are located opposite each other on both sides of the slot. The first rod is rotatably connected to the first opening. The first rod is provided with an insertion hole. The first rod and the second rod can rotate towards or away from each other. One end of the second rod is rotatably connected to the second opening, and the other end of the second rod is movably inserted into the insertion hole.

3. The maintenance platform for the counterweight side relay device of a hydropower station according to claim 1, characterized in that, It also includes multiple pedals, which are spaced apart along the height direction of the inspection frame, and a ladder is provided between two adjacent pedals.

4. The maintenance platform for the counterweight side servo motor of a hydropower station according to claim 3, characterized in that, One end of the pedal is connected to one of the two floor height support rods, and the other end of the pedal is connected to the other floor height support rod. The floor height locator is fixed to the connecting rod below the floor height support rod.

5. The maintenance platform for the counterweight side servo motor of a hydropower station according to claim 1, characterized in that, The length of the extension plate is greater than the length or width of the maintenance frame.

6. The maintenance platform for the counterweight side servo motor of a hydropower station according to claim 1, characterized in that, The fixing assembly also includes an adjustable cable, which includes a rope, a first cable rod, a second cable rod, and a tightening rod. The first cable rod is connected to the maintenance frame via a rope, and the second cable rod is connected to the inner wall of the counterweight chamber via a rope. The first cable rod and the second cable rod are provided with external threads, and the tightening rod is provided with internal threads that match the external threads.

7. A maintenance device for the counterweight side servo in a hydropower station, characterized in that, The maintenance platform for the counterweight side relay of a hydropower station, as described in any one of claims 1 to 6 above.

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