Safety protection tool for reforming operation of runner chamber

Abstract

The utility model provides a runner chamber transformation operation safety protection tool which comprises a plurality of steel wire rope fixing mechanisms and a walking mechanism, the steel wire rope fixing mechanisms are annularly distributed along a runner chamber, each steel wire rope fixing mechanism comprises a connecting frame, the connecting frames are connected with steel wire ropes, and first clamping plates are arranged on the connecting frames; the first clamping plate and the second clamping plate are connected through bolts and clamped on a construction frame body built on site, the walking mechanism comprises a walking frame, hanging idler wheels are arranged on the walking frame, a steel wire rope is arranged in a penetrating groove hole formed between the hanging idler wheels and the walking frame in a penetrating mode, and a hanging plate is arranged at the bottom of the walking frame. And a hanging hole connected with a safety rope hook is formed in the hanging plate. The tool facilitates movement of the safety rope hook, improves the protection safety of an operator, and facilitates movement of the operator.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary equipment for water turbine maintenance construction, in particular to a large water turbine runner hoisting tool. Background Art

[0002] During the renovation of a 170MW unit in a large hydropower station, it is necessary to demolish the second-phase concrete of the original runner room. The minimum inner diameter of the runner room shell is 11.00 meters, and the maximum outer diameter to be demolished is 13.5 meters. The maximum diameter at some locations on the top reaches 14.6 meters. The height range of the demolition area is 6.16 meters, and the bottom elevation is 32.8 meters. At present, the demolition construction method commonly used in the industry is mainly manual mechanical methods, such as the use of mechanical equipment such as pneumatic picks, rock drills, and hydraulic splitters. This method is inefficient, has a high risk of aerial operations, and is dusty and noisy, posing occupational health risks. Faced with the demolition of large-scale runner room concrete, this method requires a large amount of manpower and a long construction period, and it is difficult to meet the on-site construction needs of large-scale turbine unit renovation. This project introduces water jets for mechanical demolition to improve demolition efficiency. However, during the renovation of the turbine room, it is necessary to remove the runner room concrete and steel plates. Even if mechanical demolition is used, it is inevitable that operators will need to perform temporary aerial operations.

[0003] When existing operators work at height, they generally directly hang the hook of the safety rope on a frame erected on the seat ring guide vane along the runner chamber. Since the safety rope is fixedly connected to the frame, when the operator walks along the runner chamber, a pulling force is generated on the operator, affecting his walking. Therefore, the operator can only lengthen the length of the safety rope or change the hook after walking a certain distance. Lengthening the safety rope is not conducive to the operation and will reduce the protection strength. The hook changing operation will increase the difficulty of operation. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a safety protection tooling for wheel chamber transformation operation, which is convenient for the movement of the safety rope hook, improves the protection safety of the operator, and is conducive to the movement of the operator.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a safety protection tool for the transformation of the runner room, including a plurality of wire rope fixing mechanisms and a walking mechanism, and the plurality of wire rope fixing mechanisms are distributed in a ring along the runner room, the wire rope fixing mechanism includes a connecting frame, the connecting frame is connected to the wire rope, the connecting frame is provided with a first clamping plate, the first clamping plate and the second clamping plate are connected by bolts, the first clamping plate and the second clamping plate are clamped on a construction frame built on site, the walking mechanism includes a walking frame, the walking frame is provided with a hanging roller, the wire rope is passed through a passing slot formed between the hanging roller and the walking frame, a hanging plate is provided at the bottom of the walking frame, and a hanging hole connected to the safety rope hook is provided on the hanging plate.

[0006] In a preferred solution, a fixed steel pipe is provided on the outside of the steel wire rope, the fixed steel pipe is welded and fixed to the connecting frame, and both ends of the fixed steel pipe are shrunk and pressed tightly on the outside of the steel wire rope.

[0007] In a preferred solution, a connecting protrusion is provided on one side of the connecting frame, and the connecting protrusion is connected to the fixed steel pipe. A passing slot is provided on one side of the walking frame, and the width of the passing slot is greater than the thickness of the connecting protrusion and smaller than the diameter of the wire rope.

[0008] In a preferred solution, the first clamping plate and the second clamping plate each include an arc-shaped plate and connecting plates arranged at both ends of the arc-shaped plate, and the connecting plates of the first clamping plate and the second clamping plate are connected by bolts.

[0009] In a preferred solution, reinforcing ribs are provided on the outer sides of the first clamping plate and the second clamping plate.

[0010] The utility model provides a safety protection tool for the runner room transformation operation, which has the following beneficial effects:

[0011] 1. The wire rope fixing mechanism is distributed in a ring along the runner chamber to support and fix the wire rope, so that the wire rope is arranged in a ring along the runner chamber and slides along the wire rope through the walking mechanism, which is convenient for hanging the safety belt of the operator and improving the safety of the operation. At the same time, the walking mechanism can move synchronously with the operator connected to it to prevent the safety belt from pulling the operator and causing construction inconvenience, thereby improving construction flexibility and facilitating the movement of the operator.

[0012] 2. In the preferred solution, the connecting frame is provided with a connecting protrusion and its thickness is smaller than the passing slot on one side of the walking frame, so that the walking mechanism can pass through the wire rope fixing mechanism and the walking mechanism can walk a full circle, thereby eliminating the need for operators to change hooks when walking to different wire rope fixing mechanism positions, thereby improving operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is the plan layout of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the first card board or the second card board;

[0017] Figure 4 It is the structural diagram of the walking mechanism;

[0018] Figure 5 It is a schematic diagram of the relative position of the walking mechanism and the wire rope;

[0019] In the figure: connecting frame 1, steel wire rope 2, first clamping plate 3, second clamping plate 4, walking frame 5, hanging roller 6, hanging plate 7, fixed steel pipe 8, construction frame 9, arc plate 10, connecting plate 11, reinforcing rib plate 12, connecting protrusion 101, running slot 501, hanging hole 701. DETAILED DESCRIPTION

[0020] Embodiment 1:

[0021] like Figures 1 to 3 As shown, a safety protection tooling for turbine room modification operation includes a plurality of wire rope fixing mechanisms and traveling mechanisms. At least two traveling mechanisms are arranged between each two adjacent sets of wire rope fixing mechanisms, so as to facilitate multiple operators to use or perform hook changing operations. The wire rope fixing mechanisms are arranged on a construction frame 9, and the wire rope fixing mechanisms are distributed in a ring along the turbine room. The construction frame 9 is a construction frame that has been built in the prior art, and is arranged between the seat ring guide vane of the turbine room and the central concrete cutting equipment construction platform. The wire rope 2 is fixed and supported by the wire rope fixing mechanism, so that the wire rope 2 is distributed in a ring shape.

[0022] Specifically, the wire rope fixing mechanism includes a connecting frame 1, which is connected to the wire rope 2. The connecting frame 1 can be riveted to the wire rope 2. In this embodiment, a fixed steel pipe 8 is provided on the outside of the wire rope 2. The fixed steel pipe 8 is welded and fixed to the connecting frame 1. Both ends of the fixed steel pipe 8 are contracted and pressed against the outside of the wire rope 2, that is, the fixed steel pipe 8 is distributed in a cone shape to achieve the connection between the connecting frame 1 and the wire rope 2.

[0023] The connecting frame 1 is provided with a first clamping plate 3, the connecting frame 1 is welded and fixed to the first clamping plate 3, the first clamping plate 3 and the second clamping plate 4 are connected by bolts, and the first clamping plate 3 and the second clamping plate 4 are clamped on the construction frame 9 built on site. Figure 1 and 3 As shown, the first clamping plate 3 and the second clamping plate 4 both include an arc-shaped plate 10 and connecting plates 11 arranged at both ends of the arc-shaped plate 10, the connecting plate 11 at one end of the first clamping plate 3 is welded to the connecting frame 1, and the connecting plates 11 of the first clamping plate 3 and the second clamping plate 4 are connected by bolts, and the construction frame 9 is clamped between the two groups of arc-shaped plates 10 by bolts to achieve clamping.

[0024] In a specific implementation, a reinforcing rib plate 12 is provided on the outer side of the first clamp plate 3 and the second clamp plate 4 , and is welded to the first clamp plate 3 and the second clamp plate 4 to improve the supporting strength of the first clamp plate 3 and the second clamp plate 4 .

[0025] The traveling mechanism includes a traveling frame 5, which can be set as a "U"-shaped structure. A hanging roller 6 is provided on the traveling frame 5. The steel wire rope 2 is passed through a passing slot formed between the hanging roller 6 and the traveling frame 5. The hanging roller 6 moves along the steel wire rope 2. A hanging plate 7 is provided at the bottom of the traveling frame 5. The hanging plate 7 is provided with a hanging hole 701 connected to the safety rope hook.

[0026] When in use, the wire rope fixing mechanism is distributed in a ring along the wheel house to support and fix the wire rope 2, and a number of walking mechanisms move along the wire rope 2. The operator hangs the safety belt connected to the walking mechanism on his body. When the operator walks along the wheel house during construction, the walking mechanism can move synchronously with the operator connected to it to prevent the safety belt from pulling the operator and causing inconvenience in construction, thereby improving construction flexibility. When the walking mechanism cannot continue to move when walking to the position of the wire rope fixing mechanism, the safety belt on the walking mechanism of the next working stage is hung on the operator, and then the previously hung safety belt is untied to continue the construction work of the next working stage.

[0027] Embodiment 2:

[0028] Different from the embodiment, Figure 1 and 4 As shown in ~5, a connecting protrusion 101 is provided on one side of the connecting frame 1, and the connecting protrusion 101 is connected to the fixed steel pipe 8. A passing slot 501 is provided on one side of the walking frame 5. The width of the passing slot 501 is greater than the thickness of the connecting protrusion 101 and less than the diameter of the wire rope 2. Therefore, after the wire rope 2 is initially set on the lower side of the hanging roller 6 of the walking mechanism, it will not slide out from one side of the passing slot 501. At the same time, since the thickness of the connecting protrusion 101 is less than the width of the passing slot 501, the walking mechanism can pass through the wire rope fixing mechanism, so that the walking mechanism can walk a full circle, so that the operator does not need to change the hook when walking to different wire rope fixing mechanism positions, thereby improving operational safety.

Claims

1. A safety protection tool for the runner room renovation operation, It is characterized in that The invention comprises a plurality of steel wire rope fixing mechanisms and a traveling mechanism, wherein the plurality of steel wire rope fixing mechanisms are distributed in a ring along the wheel chamber, wherein the steel wire rope fixing mechanisms comprise a connecting frame (1), wherein the connecting frame (1) is connected to the steel wire rope (2), wherein a first clamping plate (3) is provided on the connecting frame (1), wherein the first clamping plate (3) and the second clamping plate (4) are connected by bolts, wherein the first clamping plate (3) and the second clamping plate (4) are clamped on a construction frame (9) constructed on site, and wherein the traveling mechanism comprises a traveling frame (5), wherein a hanging roller (6) is provided on the traveling frame (5), wherein the steel wire rope (2) is passed through a passing slot formed between the hanging roller (6) and the traveling frame (5), wherein a hanging plate (7) is provided at the bottom of the traveling frame (5), wherein a hanging hole (701) connected to a safety rope hook is provided on the hanging plate (7).

2. A safety protection tool for rotor chamber reconstruction work according to claim 1, It is characterized in that A fixed steel pipe (8) is provided on the outside of the steel wire rope (2), the fixed steel pipe (8) is fixed to the connecting frame (1) by welding, and both ends of the fixed steel pipe (8) are contracted and pressed against the outside of the steel wire rope (2).

3. A safety protection tooling for rotor chamber reconstruction operation according to claim 2, It is characterized in that A connecting protrusion (101) is provided on one side of the connecting frame (1), and the connecting protrusion (101) is connected to the fixed steel pipe (8). A walking slot (501) is provided on one side of the traveling frame (5), and the width of the walking slot (501) is greater than the thickness of the connecting protrusion (101) and less than the diameter of the steel wire rope (2).

4. A safety protection tooling for rotor chamber reconstruction work according to claim 1, It is characterized in that The first clamping plate (3) and the second clamping plate (4) both comprise an arc-shaped plate (10) and connecting plates (11) arranged at both ends of the arc-shaped plate (10); the connecting plates (11) of the first clamping plate (3) and the second clamping plate (4) are connected by bolts.

5. A safety protection tool for rotor chamber reconstruction work according to claim 4, It is characterized in that Reinforcing rib plates (12) are provided on the outer sides of the first clamping plate (3) and the second clamping plate (4).

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