Rotating wheel inspection operation platform

Abstract

The utility model discloses a runner maintenance operation platform and relates to the technical field of equipment maintenance. Comprising a lower platform, a middle platform and an upper platform which are sequentially and coaxially arranged from bottom to top. The lower platform, the middle platform and the upper platform are integrally annular, and the diameter of the lower platform and the diameter of the middle platform are larger than that of the upper platform; bottom plates for standing are arranged in the lower platform, the middle platform and the upper platform, the bottom plates of the lower platform and the middle platform are each provided with a crawling ladder leading to the ground, and the bottom plate of the upper platform is provided with a crawling ladder leading to the bottom plate of the middle platform. The lower platform is placed on the ground, the top of the lower platform is correspondingly connected with the bottom of the middle platform, an extension support is arranged at the top of the middle platform, the top of the extension support is connected with the outer side edge of the bottom of the upper platform through a plurality of adjusting pieces, and the inner side edge of the bottom of the upper platform can abut against the upper face of the runner hub located on the reverse station. The device has the advantages of being high in safety and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance, in particular to a wheel body maintenance operation platform. Background Art

[0002] In order to ensure that the hydro-turbine generator set has higher operational reliability and can be in a stable and good working condition, it is necessary to carry out planned maintenance on the hydro-turbine generator set, replace those vulnerable parts that are difficult to repair in time, and repair those parts that have been obviously damaged during operation to prevent the generator set from shutting down due to accidents; this can ensure that the hydropower station can effectively utilize water energy and at the same time ensure that the hydropower station can continuously provide electricity to the system and users.

[0003] The maintenance of the turbine runner is a very important part of the entire maintenance work. Since the diameter and height of the runner are large, corresponding maintenance auxiliary equipment must be available to enable maintenance personnel to reach the corresponding maintenance position for maintenance.

[0004] At present, in the traditional maintenance, the operators generally use horizontal bars and vertical bars to build scaffolding layer by layer to form an auxiliary working platform. However, the quality of the scaffolding is generally uneven according to the experience and level of the builders. In addition, the scaffolding is built at different heights according to the different workstations of the runner body during maintenance. If the workstation of the runner body is changed many times, it needs to be repeatedly dismantled and built, which greatly affects the maintenance efficiency.

[0005] In addition, the traditional operation platform also has the following other defects:

[0006] 1. Due to the different lengths of the horizontal and vertical poles used, if the operator uses the wrong size of the horizontal or vertical pole during installation, part of the pole body will be redundant. The redundant extension part can easily cause scratches on personnel and exceed the vertical projection area of ​​the platform, resulting in a larger occupied area;

[0007] 2. In order to ensure the stability of the gantry, a large number of connecting rods and reinforcement rods will be used, and the erection process is complicated, time-consuming and labor-intensive;

[0008] 3. The verticality and horizontality are difficult to control during the erection process. It is common for individual poles to fail to form effective support with the ground, posing a risk of overturning.

[0009] 4. All connecting parts need to be tightened with a wrench, which is time-consuming and labor-intensive, and some bolts are loose, affecting the load-bearing capacity of the entire working platform.

[0010] A Chinese patent (CN114737538A) discloses a high safety factor maintenance platform for a hydropower station generator set; the platform is composed of three load-bearing platforms and a car located inside a bracket, and maintenance workers travel back and forth between the three load-bearing platforms via the car. Although the platform can facilitate workers to inspect the runner body, due to its heavy weight and large floor space, the position of the maintenance platform is fixed and cannot be moved at will. In addition, since the maintenance area is near the hydro-turbine generator, the available area is generally small, so the maintenance platform will also affect the maintenance workers' daily work;

[0011] In response to this, we propose a maintenance work platform that is highly safe and easy to disassemble and assemble. Utility Model Content

[0012] In order to overcome the deficiencies in the background technology, the utility model discloses a rotor body inspection and maintenance operation platform.

[0013] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0014] A rotor body maintenance operation platform, comprising a lower platform, a middle platform and an upper platform which are coaxially arranged in sequence from bottom to top; the lower platform, the middle platform and the upper platform are all annular as a whole, and the diameters of the lower platform and the middle platform are greater than the diameter of the upper platform;

[0015] The lower platform, the middle platform and the upper platform are all provided with a bottom plate for standing, and the bottom plates of the lower platform and the middle platform are respectively provided with a ladder leading to the ground, and the bottom plate of the upper platform is provided with a ladder leading to the bottom plate of the middle platform;

[0016] The lower platform is placed on the ground, the top of the lower platform is correspondingly connected to the bottom of the middle platform, the top of the middle platform is provided with an extension bracket, the top of the extension bracket is connected to the outer edge of the bottom of the upper platform through a plurality of adjustment parts, and the inner edge of the bottom of the upper platform can conflict with the upper surface of the rotating wheel body in the reverse position.

[0017] Preferably, the lower platform and the middle platform each include a plurality of bevel frames, and two adjacent bevel frames are connected by a plurality of support rods to form a polygonal ring structure, and the support rods and the bevel frames are connected by connecting buckles.

[0018] Preferably, the connecting buckle includes a mounting portion and a clamping portion, wherein the mounting portion is configured to be V-shaped and can cooperate with the rod body of the vertical rod of the bevel frame, the bending part of the mounting portion is fixed to the end of the support rod, one end of the mounting portion is fixedly provided with a convex rod, the other end of the mounting portion is hinged to one end of the clamping portion, and the other end of the clamping portion is provided with a groove corresponding to the convex rod.

[0019] Preferably, a diagonal tie rod is provided between two adjacent diagonal frames.

[0020] Preferably, a guardrail is provided on the outer edge of the bottom plate of the middle platform.

[0021] Preferably, the ladders leading from the lower platform and the middle platform to the ground are provided with supporting trusses below the connection with the corresponding bottom plates.

[0022] Preferably, the multiple legs at the bottom of the bevel frame are all provided with retractable adjustment feet.

[0023] Preferably, the extension bracket is composed of a plurality of extension rods, and the extension rods are connected to corresponding vertical rods on the middle platform bevel frame through spliced ​​sleeves; the rod body of the extension rod is provided with a thread, and the adjusting piece is set as a nut.

[0024] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0025] The utility model discloses a wheel body inspection and maintenance operation platform.

[0026] 1. The modular installation structure makes the installation and disassembly of the working platform more convenient, and can ensure that there are no redundant extensions on the working platform, and control the projection area of ​​the working platform;

[0027] 2. The height of the upper platform can be adjusted by extending the bracket and adjusting parts, so that the working platform can adapt to the wheel bodies of different heights;

[0028] 3. The connecting buckle structure allows operators to manually complete the installation of the work platform, effectively improving the assembly efficiency of the work platform and reducing the difficulty of assembly;

[0029] 4. According to the different degrees of unevenness of the ground, by changing the height of the adjustment feet, the working platform can maintain a high level on uneven ground to ensure the normal use of the working platform;

[0030] 5. Since the three platforms are arranged along the same axis, the structure has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A structural schematic diagram of the utility model;

[0032] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0033] Figure 3 This is a schematic diagram of the working platform structure after the upper platform and extended support are removed.

[0034] In the figure: 1. lower platform; 2. middle platform; 3. upper platform; 4. bottom plate; 5. ladder; 6. extension bracket; 7. adjustment piece; 8. bevel bracket; 9. connecting buckle; 91. mounting part; 92. protruding rod; 93. clamping part; 10. guardrail; 11. supporting truss; 12. adjusting foot. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" and the like indicating directions or positional relationships, they are only corresponding to the drawings of the present invention, for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction:

[0036] Embodiment 1 is:

[0037] Combined with Figure 1-3 The runner maintenance work platform comprises a lower platform 1, a middle platform 2 and an upper platform 3 which are coaxially arranged in sequence from bottom to top, and coaxial means that the centers of the circles of the lower platform 1, the middle platform 2 and the upper platform 3 are on the same axis; the lower platform 1, the middle platform 2 and the upper platform 3 are all annular as a whole, and the diameters of the lower platform 1 and the middle platform 2 are larger than the diameter of the upper platform 3; wherein the arrangement of the upper platform 3 needs to be determined according to the working position of the runner body, and when the runner body is located at the positive working position, the placement of the runner body is as follows: the runner body is placed inside the working platform under the support of the support column, and the flange surface of the runner body connected to the turbine shaft faces upward, and the drain cone faces downward, and the operator needs to inspect the outside of the runner body, so at this time the upper platform 3 and the extension bracket 6 are removed, and only the lower platform 1 and the middle platform 2 are retained;

[0038] When the runner body is in the reverse position, the flange connecting the runner body and the drain cone faces upward, and the drain cone is in the removed state. The operator disassembles and inspects the blade relay cylinder inside the runner body. Because the runner body is in the reverse state compared with the forward position state, the upper platform 3 and the extension bracket 6 are in the reserved state. The operator needs to inspect the internal structure of the runner body at the upper platform 3.

[0039] The lower platform 1, the middle platform 2 and the upper platform 3 are all provided with a bottom plate 4 for standing, and the bottom plates 4 of the lower platform 1 and the middle platform 2 are respectively provided with a ladder 5 leading to the ground, and the bottom plate 4 of the upper platform 3 is provided with a ladder 5 leading to the bottom plate 4 of the middle platform 2, and the bottom plate 4 is used for workers to stand and inspect the rotating wheel body placed inside the working platform; as needed, a guardrail 10 is provided on the outer edge of the bottom plate 4 of the middle platform 2, and the guardrail 10 can effectively protect the workers located on the bottom plate 4 of the middle platform 2, thereby protecting the safety of the workers. In addition, the guardrail 10 is also connected to the column by a connecting buckle 9 to facilitate its installation; in particular, the ladder 5 leading to the ground from the lower platform 1 and the middle platform 2 is provided with a supporting truss 11 below the connection with the corresponding bottom plate 4, and the supporting truss 11 can support the ladder 5 to maintain the stability of the ladder 5;

[0040] The lower platform 1 is placed on the ground, and the top of the lower platform 1 is connected to the bottom of the middle platform 2 correspondingly. An extension bracket 6 is provided on the top of the middle platform 2. The top of the extension bracket 6 is connected to the outer edge of the bottom of the upper platform 3 through a plurality of adjustment members 7. The inner edge of the bottom of the upper platform 3 can collide with the upper surface of the runner body in the reverse position. At this time, the upper surface of the runner body is the flange surface for connecting the runner body and the drain cone. Since the lower platform 1 and the middle platform 2 are both frame structures composed of vertical poles and cross bars, the connection between the lower platform 1 and the middle platform 2 will also be the connection between vertical poles and vertical poles, so the two can be connected by splicing sleeves to ensure the firmness of the connection between the two.

[0041] It should be noted that the upper platform 3 is composed of a bottom structure and a guardrail 10, wherein the bottom structure is a polygonal ring formed by connecting multiple side rods as a frame, and a plurality of support rods toward the center of the frame as a skeleton, and the base plate 4 is installed on the frame and the skeleton, and the end of the skeleton connected to the frame is provided with a sleeve that is plugged into the extension bracket 6, and the sleeve is in contact with the adjusting member 7, and support is provided by the adjusting member 7. The end of the skeleton facing the center of the frame is in contact with the rotating wheel body, or is connected to the rotating wheel body by bolts.

[0042] Embodiment 2 is:

[0043] On the basis of Example 1, the lower platform 1 and the middle platform 2 both include a plurality of bevel frames 8, and two adjacent bevel frames 8 are connected by a plurality of support rods to form a polygonal ring structure, and the support rods and the bevel frames 8 are connected by connecting buckles 9;

[0044] It should be noted that the bevel frame 8 is a frame structure composed of vertical poles and horizontal poles, wherein a plurality of vertical poles are arranged in a trapezoidal shape, and the vertical poles on both sides of one bevel frame 8 are connected to the vertical poles on one side of another bevel frame 8 through a plurality of support poles, so that they are connected in sequence, so that a plurality of bevel frames 8 form an integral lower platform 1 or middle platform 2, and the vertical poles arranged in a trapezoidal shape can also have higher stability; in addition, a diagonal brace is arranged between two adjacent bevel frames 8, and a stable triangle can be formed by the diagonal brace, the vertical poles and the support poles, thereby enhancing the stability of the lower platform 1 and the middle platform 2;

[0045] Each bevel frame 8 is an independent standard module, so that the overall structure of the lower platform 1 or the middle platform 2 is consistent, there will be no redundant protruding parts, and there will be no problems that may easily cause scratches to personnel, or exceed the vertical projection area of ​​the platform, resulting in a larger occupied area; and the installation between modules is more convenient, the efficiency of assembly and disassembly is higher, and it is also more convenient to change the position.

[0046] Embodiment 3 is:

[0047] On the basis of Example 2, the connecting buckle 9 includes a mounting portion 91 and a clamping portion 93, wherein the mounting portion 91 is configured to be V-shaped and can cooperate with the shaft of the vertical pole in the bevel frame 8, the bending portion of the mounting portion 91 is fixed to the end of the support pole, one end of the mounting portion 91 is fixedly provided with a protruding rod 92, the other end of the mounting portion 91 is hinged to one end of the clamping portion 93, and the other end of the clamping portion 93 is provided with a groove corresponding to the protruding rod 92; wherein the mounting portion 91 and the clamping portion 93 can jointly grasp the shaft of the vertical pole after clamping, and by rotating the clamping portion 93 with the hinge point as the center of the circle, the protruding rod 92 is allowed to enter the groove, and the clamping of the clamping portion 93 and the mounting portion 91 to the vertical pole is achieved through the friction between the protruding rod 92 and the groove.

[0048] Embodiment 4 is:

[0049] On the basis of Example 1, the multiple legs at the bottom of the bevel frame 8 are all provided with a retractable adjusting foot 12, wherein the structure of the adjusting foot 12 can be composed of a screw seat and a nut, wherein the nut is threadedly connected to the bottom part of the corresponding vertical rod in the bevel frame 8, and the other part of the nut is threadedly connected to the screw end of the screw seat, and by adjusting the degree of thread connection between the screw end of the screw seat and the nut, the overall length of the adjusting foot 12 can be changed, so that the working platform can maintain a high level even on uneven ground, thereby ensuring the normal use of the working platform.

[0050] Embodiment 5 is:

[0051] On the basis of Example 1, the extension bracket 6 is composed of multiple extension rods, and the extension rods are connected to the corresponding vertical rods on the bevel frame 8 of the middle platform 2 through a spliced ​​sleeve; the rod body of the extension rod is provided with a thread, and the adjusting member 7 is set as a nut. It should be noted that the upper platform 3 falls on the adjusting member 7 after being passed through by the extension rod, and the pressure of the upper platform 3 is jointly borne by multiple adjusting members 7. Therefore, by changing the position of the adjusting member 7 on the extension rod, the height of the upper platform 3 can be adjusted, so that the working platform can adapt to the wheel bodies of different heights.

[0052] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

Claims

1. A runner maintenance work platform, characterized by: The invention comprises a lower platform (1), a middle platform (2) and an upper platform (3) which are coaxially arranged in sequence from bottom to top; the lower platform (1), the middle platform (2) and the upper platform (3) are all annular as a whole, and the diameters of the lower platform (1) and the middle platform (2) are greater than the diameter of the upper platform (3); The lower platform (1), the middle platform (2) and the upper platform (3) are all provided with a bottom plate (4) for standing, and the bottom plates (4) of the lower platform (1) and the middle platform (2) are respectively provided with a ladder (5) leading to the ground, and the bottom plate (4) of the upper platform (3) is provided with a ladder (5) leading to the bottom plate (4) of the middle platform (2); The lower platform (1) is placed on the ground, the top of the lower platform (1) is correspondingly connected to the bottom of the middle platform (2), the top of the middle platform (2) is provided with an extension bracket (6), the top of the extension bracket (6) is connected to the outer edge of the bottom of the upper platform (3) through a plurality of adjustment members (7), and the inner edge of the bottom of the upper platform (3) can contact the upper surface of the wheel body in the reverse position.

2. The wheel maintenance work platform according to claim 1, characterized in that: The lower platform (1) and the middle platform (2) both include a plurality of bevel frames (8), and two adjacent bevel frames (8) are connected by a plurality of support rods to form a polygonal ring structure, and the support rods and the bevel frames (8) are connected by connecting buckles (9).

3. The wheel maintenance work platform according to claim 2, characterized in that: The connecting buckle (9) comprises a mounting portion (91) and a clamping portion (93), wherein the mounting portion (91) is arranged in a V-shape capable of cooperating with the rod body of the vertical rod of the bevel frame (8), the bending part of the mounting portion (91) is fixed to the end of the support rod, one end of the mounting portion (91) is fixedly provided with a protruding rod (92), the other end of the mounting portion (91) is hingedly connected to one end of the clamping portion (93), and the other end of the clamping portion (93) is provided with a slot corresponding to the protruding rod (92).

4. The wheel maintenance work platform according to claim 3, characterized in that: A diagonal tie rod is provided between two adjacent diagonal frames (8).

5. The wheel maintenance work platform according to claim 1, characterized in that: A guardrail (10) is provided on the outer edge of the bottom plate (4) of the middle platform (2).

6. The wheel maintenance work platform according to claim 1, characterized in that: The ladders (5) leading from the lower platform (1) and the middle platform (2) to the ground are provided with supporting trusses (11) below the connection points with the corresponding bottom plates (4).

7. The wheel maintenance work platform according to claim 2, characterized in that: The multiple legs at the bottom of the bevel frame (8) are all provided with retractable adjustment feet (12).

8. The wheel maintenance work platform according to claim 2, characterized in that: The extension bracket (6) is composed of a plurality of extension rods, which are connected to corresponding vertical rods on the bevel frame (8) of the middle platform (2) through spliced ​​sleeves; the rod body of the extension rod is provided with a thread, and the adjustment member (7) is configured as a nut threadedly connected to the extension rod.

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