Turning wheel turning device of bulb tubular unit
By designing a rotor turnover device of a bulb flow unit that includes a curved base, a connecting plate, a reinforcement plate and a limiting hole, the problem of inadequate control of the rotor turnover to the 45° critical point is solved, and the safety, controllability, smooth and stable process of the rotor turnover is achieved.
Patent Information
- Application Number
- CN202422134875.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The turntable of the light bulb flow hydrowheel generator set is not controlled properly when it turns over to the critical point of 45°, resulting in the risk of failure in turn over or accidents.
A turning device for turning the wheel of the bulb through-flow unit is designed, including an arc-shaped base, connecting plate, reinforcement plate and limiting hole. The turning body is connected by bolts to ensure smoothness and stability of the turning process.
The turnover process of the wheel is safe and controllable, avoiding failure or accidents of turning over, and ensuring smooth, stable and safe turn over.
Smart Images
Figure CN222974733U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydropower station mechanical engineering, and particularly relates to a runner turning device for a bulb tubular unit. Background Technique
[0002] The bulb tubular hydro-generating unit is horizontally arranged. After the runner is hoisted out to the installation plant during maintenance, it needs to be turned from the lying state to the upright state, and the operation process is extremely risky. The previous turning tools have defects in calculating the center of gravity and rotation angle of the runner, resulting in a balanced state when the runner is turned to 45°. The weight of the runner is 67.5 tons, while the maximum design value of the main hook of the crane is 200 tons, and the maximum design value of the auxiliary hook is 50 tons. The main hook is used for hoisting during the runner turning, and the auxiliary hook plays an auxiliary role to prevent displacement and rolling. When reaching the critical point during the turning process, the auxiliary hook bears all the weight. The self-weight of the runner is greater than the maximum design value of the auxiliary hook, and it cannot complete the turning completely relying on gravity. If the 45° critical point is not controlled properly, it will cause the failure of the runner turning and even the accident of being thrown out.
[0003] The information disclosed in this background technical section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a runner turning device for a bulb tubular unit to solve the problem that if the control is not in place when the runner is turned to the 45° critical point, it will cause the failure of the runner turning and even the accident of being thrown out.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A runner turning device for a bulb tubular unit, comprising:
[0007] An arc-shaped base, which is composed of a horizontal bottom plate, an arc-shaped plate and a vertical plate; the upper surface of the horizontal bottom plate is an arc surface; the top of the arc-shaped plate is connected to the bottom of the vertical plate, and its bottom is connected to one end of the horizontal bottom plate close to the vertical plate;
[0008] A connecting flat plate, the bottom surface of which is an arc surface and fits with the upper surface of the horizontal bottom plate; the connecting flat plate is arranged parallel to the vertical plate, and a plurality of reinforcing plates are arranged on the side close to the vertical plate; one end of the reinforcing plate far from the connecting flat plate is integrally formed with the vertical plate, and its bottom is connected and fitted with the arc-shaped plate; a plurality of first limiting holes are also opened on the connecting flat plate, and a plurality of second limiting holes are also opened below the first limiting holes.
[0009] Preferably, four first limiting holes are formed in the connecting flat plate; the first limiting holes are grouped in pairs of two and are respectively located on both sides of the connecting flat plate.
[0010] Preferably, six second limiting holes are formed in the connecting flat plate; the second limiting holes are grouped in threes and are respectively located below the corresponding first limiting holes.
[0011] Preferably, three reinforcing plates are arranged between the connecting flat plate and the vertical plate.
[0012] Preferably, hanging ears are arranged at the tops of the two outer reinforcing plates.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] (1) For the runner turning-over device of the bulb tubular unit of the utility model, during the process of the runner turning over from lying down to upright and from upright to lying down, it can ensure that the runner turning-over process is smooth, stable, safe and controllable, achieving the purpose of safe hoisting.
[0015] (2) For the runner turning-over device of the bulb tubular unit of the utility model, it is bolt-connected to the runner body, and the installation method is relatively convenient; the surfaces of the runner body and the turning-over device are in surface contact, which greatly improves the safety compared with point-to-point contact, thus ensuring the safety and reliability of the turning-over process, and indirectly protecting the ground from being damaged. Description of the Drawings
[0016] Figure 1 is the external schematic diagram of the utility model;
[0017] Figure 2 is the front view of the utility model;
[0018] Figure 3 is the left view of the utility model;
[0019] Main reference numeral description:
[0020] 1, arc-shaped base; 2, connecting flat plate; 3, reinforcing plate; 4, first limiting hole; 5, second limiting hole; 6, hanging ear. Detailed Embodiments
[0021] The technical solutions of the utility model patent will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.
[0022] In the description of the present utility model, it should be noted that for the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., it is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the utility model.
[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, for terms such as "installation", "connection", "coupling", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or indirectly connected through an intermediate medium, and it can be the connection inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0024] Referring to the attached Figures 1-3 , a runner turning-over device for a bulb tubular unit, comprising:
[0025] An arc-shaped base 1, which is composed of a horizontal bottom plate, an arc-shaped plate and a vertical plate; the upper surface of the horizontal bottom plate is an arc surface; the top of the arc-shaped plate is connected to the bottom of the vertical plate, and its bottom is connected to one end of the horizontal bottom plate close to the vertical plate;
[0026] A connecting flat plate 2, whose bottom surface is an arc surface and fits with the upper surface of the horizontal bottom plate; the connecting flat plate 2 is arranged parallel to the vertical plate, and a plurality of reinforcing plates 3 are provided on the side close to the vertical plate; one end of the reinforcing plate 3 away from the connecting flat plate 2 is integrally formed with the vertical plate, and its bottom is connected and fitted with the arc-shaped plate; a plurality of first limiting holes 4 are also opened on the connecting flat plate 2, and a plurality of second limiting holes 5 are also opened below the first limiting holes 4.
[0027] In this embodiment, 4 first limiting holes 4 are opened on the connecting flat plate 2; the first limiting holes 4 are grouped in pairs of 2, and are respectively located on both sides of the connecting flat plate 2. 6 second limiting holes 5 are opened on the connecting flat plate 2; the second limiting holes 5 are grouped in threes, and are respectively located below the corresponding first limiting holes 4. The turning-over device is connected to the runner body by passing connecting bolts of different sizes through the first limiting holes 4 and the second limiting holes 5 respectively, and the installation is convenient.
[0028] On the other hand, 3 reinforcing plates 3 are provided between the connecting flat plate 2 and the vertical plate to strengthen the overall structural strength. Hanging ears 6 are provided at the tops of the 2 outer reinforcing plates 3 for connecting the towing ropes.
[0029] During actual use, before turning over, first install the turning wheel turning device, tighten the connecting bolts between the turning device and the turning wheel body. The main hook of the bridge crane pulls the main lifting point, and the auxiliary hook pulls the auxiliary lifting point, so that the turning wheel rotates vertically with the turning device as the fulcrum. During the process of lifting the main hook, cooperate with the moving trolley to keep the hoisting wire rope of the hook in a basically vertical state all the time. During the process, the auxiliary hook should be continuously stressed and adjusted along with the lifting of the main hook; continue to lift the main hook and the moving trolley. When the center of gravity of the turning wheel is perpendicular to the turning fulcrum, slowly lower the auxiliary hook and the main hook until the turning wheel body is in a vertical state.
[0030] During the process, observe the stress conditions of the main and auxiliary hooks. Lift the turning wheel body as a whole by lifting the main hook, remove the turning device of the turning wheel body, and move the trolley and the large vehicle to place the turning wheel body on the special support to complete the turning over. Through two turning over tests of the turning wheel from lying down to standing upright and from standing upright to lying down, a practical demonstration is carried out. The turning device of this embodiment can ensure that the turning over process of the turning wheel is smooth, stable, safe and controllable, achieving the purpose of safe hoisting.
[0031] The turning device of the bulb tubular unit runner of the present utility model is similar in shape to a boot and is structurally divided into two parts. One part is the arc-shaped base 1, and the other part is the connecting flat plate 2 connected to the runner body. The connecting flat plate 2 is bolted to the runner body, and the installation method is relatively convenient. The contact between the runner body and the turning device is surface-to-surface contact, which greatly improves the safety compared with point-to-point contact. The overall arc coincides with the change of the center of gravity track of the turning wheel, smoothly realizing the entire turning over process, and naturally bringing the center of gravity of the turning wheel over the 45° critical point, thereby ensuring the safety and reliability of the turning over process. At the same time, it also indirectly protects the ground from being damaged. It is very practical and has good market application prospects.
[0032] The foregoing description of the specific exemplary embodiments of the present utility model is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present utility model, as well as various different selections and changes. The scope of the present utility model is intended to be defined by the claims and their equivalents.
Claims
1. A bulb tubular unit rotor turning device, characterized in that: include: The arc-shaped base is composed of a horizontal bottom plate, an arc-shaped plate and a vertical plate; the upper surface of the horizontal bottom plate is an arc surface; the top of the arc-shaped plate is connected to the bottom of the vertical plate, and the bottom of the arc-shaped plate is connected to an end of the horizontal bottom plate close to the vertical plate; A connecting plate, the bottom surface of which is an arc-shaped surface and fits with the upper surface of the horizontal bottom plate; the connecting plate is arranged parallel to the vertical plate, and a plurality of reinforcing plates are provided on a side close to the vertical plate; the reinforcing plate is integrally formed with the vertical plate at one end away from the connecting plate, and the bottom of the reinforcing plate is connected and fits with the arc-shaped plate; a plurality of limiting holes 1 are also provided on the connecting plate, and a plurality of limiting holes 2 are also provided below the limiting holes 1.
2. The bulb tubular unit rotor turning device according to claim 1, characterized in that: Four limiting holes are provided on the connecting plate; the limiting holes are arranged in groups of two and are respectively located on two sides of the connecting plate.
3. The bulb tubular unit rotor turning device according to claim 1, characterized in that: The connecting plate is provided with six second limiting holes; the second limiting holes are grouped in three and are respectively located below the first limiting holes at corresponding positions.
4. The bulb tubular unit rotor turning device according to claim 1, characterized in that: Three reinforcing plates are arranged between the connecting flat plate and the vertical plate.
5. The bulb tubular unit rotor turning device according to claim 4, characterized in that: The tops of the two reinforcement plates located on the outside are both provided with hanging ears.