Safety auxiliary device for maintenance operation of hydro-generator base

Abstract

The hydraulic generator base maintenance operation safety auxiliary device comprises an annular sliding rail, fixing devices and a plurality of suspension devices, the multiple fixing devices are installed on the annular sliding rail and used for being connected with buttresses on the outer side of a hydraulic generator base, an opening is formed in the circumference of the annular sliding rail, one end of each suspension device is located in the annular sliding rail, and the other end of each suspension device is located in the annular sliding rail. And the other end extends out from the opening. The fixing device is connected with the buttress, so that the annular sliding rail is connected with the buttress, the suspension device can annularly slide along the annular sliding rail, and the safety belt rope hook is hung on the annular sliding rail of the suspension device. During operation, a worker can walk freely along the annular sliding rail, a safety belt rope does not need to be tied and taken repeatedly, related operation efficiency is improved, and potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine generator maintenance, in particular to a safety auxiliary device for maintenance work of a water turbine generator base. Background Art

[0002] There are multiple piers on the outside of the turbine generator base, which surround the turbine generator base. When inspecting the inside of the turbine generator base, a circular scaffolding is set up inside the turbine generator base. Workers need to wear safety belts during operation. Currently, the safety belt rope is bolted to the pier or hooked on the mounting hole of the top plate on the pier. Although this can play a safety role, the range of movement during operation is limited. When the moving distance exceeds the length of the safety belt rope, the safety belt rope on the pier must be removed in advance, which not only has low operating efficiency, but also poses a safety hazard. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology, and to provide a safety auxiliary device for maintenance operation of a turbine generator base, wherein an annular slide rail is installed through a pier, and a suspension device can slide in an annular manner along the annular slide rail, and a safety belt rope is hooked on the suspension device. During operation, the staff can walk freely along the annular slide rail without repeatedly fastening and unfastening the safety belt rope, thereby improving the operation efficiency and eliminating safety hazards.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a safety auxiliary device for maintenance operations of a hydro-turbine generator base, comprising an annular slide rail, a fixing device and a plurality of suspension devices, wherein a plurality of fixing devices are installed on the annular slide rail, and the fixing device is used to connect with the piers on the outside of the hydro-turbine generator base, and an opening is arranged on the circumference of the annular slide rail, and one end of the suspension device is located in the annular slide rail, and the other end extends out from the opening.

[0005] The annular slide rail is formed into a ring by a plurality of track units, and adjacent track units are connected by a connecting sleeve, and the connecting sleeve is provided with a notch corresponding to the opening, and the ends of the adjacent track units are inserted into the connecting sleeve, and a limit screw is screwed on the connecting sleeve, and the limit screw abuts against the outer wall of the track unit, thereby fixing the connecting sleeve to the track unit.

[0006] The cross section of the annular slide rail is circular, a groove is provided at the end of the track unit, and a boss corresponding to the groove is provided on the inner wall of the connecting sleeve. When the end of the track unit is inserted into the connecting sleeve, the boss is inserted into the groove, and the notch is aligned with the opening.

[0007] The cross section of the annular slide rail is rectangular.

[0008] The two ends of the inner wall of the connecting sleeve are provided with mounting positions, and a positioning step is formed between the two mounting positions. After the track unit is inserted into the mounting position, the end portion abuts against the positioning step.

[0009] The fixing device includes a connecting rod, which is provided with an external thread, and at least one nut is screwed onto the external thread. In use, the connecting rod passes through the mounting hole of the top plate on the pier, and the nut is located on the upper side or both sides of the top plate.

[0010] The fixing device comprises a groove-shaped clamping plate, a positioning screw is screwed on the side wall of the groove-shaped clamping plate, and the groove-shaped clamping plate is connected to the annular slide rail through a connecting piece.

[0011] The suspension device comprises a connecting plate, an upper end of which is fixedly provided with a wheel axle, both ends of which are respectively provided with rollers via bearings, and a matching portion is provided at the lower end of the connecting plate.

[0012] The matching portion is a hole arranged on the connecting plate.

[0013] The matching part is a pulley.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model is connected to the pier through a fixing device, so as to connect the annular slide rail to the pier, and the suspension device can slide in an annular shape along the annular slide rail, and the safety belt rope is hooked on the suspension device. During operation, the staff can walk along the annular slide rail at will without repeatedly fastening and unfastening the safety belt rope, thereby improving the operation efficiency and eliminating safety hazards.

[0016] 2. The annular slide rail is composed of multiple track units enclosed in a ring, which is convenient for storage and transportation and can be assembled on site when used.

[0017] 3. The matching part is a hole set on the connecting plate, which is convenient for hooking or tying the safety belt rope.

[0018] 4. The matching part is a pulley, which is convenient for lifting the accessories in the turbine generator base to the installation position.

[0019] 5. The circular slide rail is easy to disassemble and assemble, and can also be used as a handrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic structural diagram of the first embodiment of the fixing device on the track unit of the utility model.

[0023] Figure 3 It is a schematic structural diagram of a second embodiment of the fixing device on the track unit of the utility model.

[0024] Figure 4 This is a schematic structural diagram of a first embodiment of the connection between the track unit and the suspension device of the utility model.

[0025] Figure 5 This is a structural schematic diagram of a second embodiment of the connection between the track unit and the suspension device of the utility model.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the connecting sleeve of the utility model.

[0027] Figure 7 It is a schematic diagram of the utility model in use.

[0028] In the figure:

[0029] An annular slide rail 10, a track unit 11, an opening 12, and a groove 13;

[0030] Connecting sleeve 20, notch 21, mounting position 22, positioning step 23, stop screw 24, boss 25;

[0031] Fixing device 30, connecting rod 31, nut 32, slotted clamping plate 33, positioning screw 34, connecting piece 35;

[0032] Suspension device 40, connecting plate 41, axle 42, bearing 43, roller 44, hole 45, pulley 46;

[0033] The hydro-generator base 50 , the buttress 60 , and the top plate 61 . DETAILED DESCRIPTION

[0034] See also Figure 1-7 , a safety auxiliary device for maintenance work of a turbine generator base, comprises an annular slide rail 10, a fixing device 30 and a plurality of suspension devices 40, wherein a plurality of fixing devices 30 are installed on the annular slide rail 10, and the fixing device 30 is used to connect with the pier 60 outside the turbine generator base 50, and an opening 12 is arranged on the circumference of the annular slide rail 10, and one end of the suspension device 40 is located in the annular slide rail 10, and the other end extends from the opening 12. The utility model connects the annular slide rail 10 with the pier 60 through the fixing device 30, thereby connecting the annular slide rail 10 with the pier 60, and the suspension device 40 can slide in an annular shape along the annular slide rail 10, and the safety belt rope is hooked on the suspension device. During operation, the staff can walk freely along the annular slide rail without repeatedly fastening and unfastening the safety belt rope, thereby improving the operation efficiency and eliminating safety hazards.

[0035] See also Figure 2 , 3The annular rail 10 is formed into an annular shape by a plurality of rail units 11. Adjacent rail units 11 are connected by a connecting sleeve 20. The connecting sleeve 20 is provided with a notch 21 corresponding to the opening 12. The ends of adjacent rail units 11 are inserted into the connecting sleeve 20. The connecting sleeve 20 is screwed with a limit screw 24. The limit screw 24 abuts against the outer wall of the rail unit 11, thereby fixing the connecting sleeve 20 to the rail unit 11. The connecting sleeve 20 is an arc shape that matches the arc of the annular rail 10. The annular rail 10 is formed into an annular shape by a plurality of rail units 11, which is convenient for storage and transportation. It is assembled on site when in use.

[0036] When in use, the track unit 11 is inserted into the connecting sleeve 20 to half of its length, and then the limit screw 24 is tightened to fix the connecting sleeve 20 to the track unit 11. It should be noted that when tightening the limit screw 24, it is necessary to ensure that the notch 21 is aligned with the opening 12, so that the connecting sleeve 20 will not affect the annular sliding of the suspension device 40.

[0037] See also Figure 2 , 3 6. The cross section of the annular slide rail 10 is circular, a groove 13 is provided at the end of the track unit 11, and a boss 25 corresponding to the groove 13 is provided on the inner wall of the connecting sleeve 20. When the end of the track unit 11 is inserted into the connecting sleeve 20, the boss 25 is inserted into the groove 13, and the notch 21 is aligned with the opening 12. The notch 21 is aligned with the opening 12 by the cooperation between the groove 13 and the boss 25.

[0038] In another implementation, see Figure 5 , the cross section of the annular slide rail 10 is rectangular.

[0039] See also Figure 6 In order to prevent the track unit 11 from penetrating into the connecting sleeve 20 to a greater depth than the other track unit 11, which may cause safety hazards, mounting positions 22 are provided at both ends of the inner wall of the connecting sleeve 20, and a positioning step 23 is formed between the two mounting positions 22. After the track unit 11 is inserted into the mounting position 22, the end of the track unit 11 abuts against the positioning step 23.

[0040] It should be noted that no matter the cross section of the annular rail 10 is circular or rectangular, the connecting sleeve 20 is adapted to the annular rail 10 , and the positioning step 23 is adapted to the inner wall of the annular rail 10 , so that the suspension device 40 can pass smoothly.

[0041] In a preferred embodiment, see Figure 2 The fixing device 30 includes a connecting rod 31, on which an external thread is provided, and at least one nut 32 is screwed onto the external thread. In the use state, the connecting rod 31 passes through the mounting hole of the top plate 61 on the pier 60, and the nut 32 is located on the upper side or both sides of the top plate 61. Figure 7The figure shows the working condition where the connecting rod 31 is connected to the top plate 61.

[0042] In another embodiment, see Figure 3 The fixing device 30 includes a slotted card plate 33, the slot of the slotted card plate 33 faces outward, a positioning screw 34 is screwed on the side wall of the slotted card plate 33, and the slotted card plate 33 is connected to the annular slide rail 10 through a connecting piece 35. When in use, the slotted card plate 33 is clamped on the buttress 60, and the positioning screw 34 is used to fix the slotted card plate 33 to the buttress 60.

[0043] See also Figure 4 , 5 The suspension device 40 includes a connecting plate 41, a wheel shaft 42 is fixedly arranged at the upper end of the connecting plate 41, rollers 44 are respectively installed at both ends of the wheel shaft 42 through bearings 43, and a matching portion is arranged at the lower end of the connecting plate 41. When in use, the roller 44 is located inside the annular slide rail 10, and the matching portion is located outside the annular slide rail 10. Through the above structure, the suspension device 40 can move flexibly inside the annular slide rail 10.

[0044] In a preferred embodiment, the matching portion is a hole 45 provided on the connecting plate 41, which is convenient for hooking or tying a safety belt rope.

[0045] In another embodiment, see Figure 3 The matching part is a pulley 46, which is convenient for lifting the accessories in the turbine generator base 50 to the installation position. When in use, the accessories are tied to the rope, the rope passes through the pulley 46, and the rope is pulled at the bottom of the turbine generator base 50 to lift the accessories to the installation position.

[0046] Specifically, the pulley 46 has two side plates and a grooved wheel. The two side plates are welded to the connecting plate 41, and the grooved wheel is rotatably installed between the two side plates through the central axis.

[0047] The working principle or action process of the utility model is as follows:

[0048] Before the operation, the annular slide rail 10 is first installed on the pier 60 through the fixing device 30 , and a plurality of suspension devices 40 are placed in the annular slide rail 10 .

[0049] During operation, the worker's safety belt rope is hooked on the suspension device 40, and the worker can walk freely along the annular slide rail without repeatedly fastening and unfastening the safety belt rope, thereby improving operation efficiency and eliminating safety hazards.

Claims

1. A safety auxiliary device for maintenance of a hydro-generator base, characterized by: The invention comprises an annular slide rail (10), a fixing device (30) and a plurality of suspension devices (40); the annular slide rail (10) is provided with a plurality of fixing devices (30); the fixing devices (30) are used to be connected to a buttress (60) outside a turbine generator base (50); an opening (12) is provided on the circumference of the annular slide rail (10); one end of the suspension device (40) is located inside the annular slide rail (10) and the other end protrudes from the opening (12).

2. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 1 is characterized in that: The annular slide rail (10) is formed into an annular shape by a plurality of track units (11), and adjacent track units (11) are connected via a connecting sleeve (20). The connecting sleeve (20) is provided with a notch (21) corresponding to the opening (12). The ends of adjacent track units (11) are inserted into the connecting sleeve (20). A limit screw (24) is screwed onto the connecting sleeve (20), and the limit screw (24) abuts against the outer wall of the track unit (11), thereby fixing the connecting sleeve (20) to the track unit (11).

3. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 2 is characterized in that: The cross section of the annular slide rail (10) is circular, a groove (13) is provided at the end of the track unit (11), and a boss (25) corresponding to the groove (13) is provided on the inner wall of the connecting sleeve (20); when the end of the track unit (11) is inserted into the connecting sleeve (20), the boss (25) is inserted into the groove (13), and the notch (21) is aligned with the opening (12).

4. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 2 is characterized in that: The cross section of the annular slide rail (10) is rectangular.

5. The safety auxiliary device for maintenance of a hydro-generator frame according to any one of claims 2 to 4, characterized in that: Mounting positions (22) are provided at both ends of the inner wall of the connecting sleeve (20), and a positioning step (23) is formed between the two mounting positions (22). After the track unit (11) is inserted into the mounting position (22), the end portion abuts against the positioning step (23).

6. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 1 is characterized in that: The fixing device (30) comprises a connecting rod (31), the connecting rod (31) being provided with an external thread, and at least one nut (32) being screwed onto the external thread. In a use state, the connecting rod (31) passes through a mounting hole of a top plate (61) on the buttress (60), and the nut (32) is located on the upper side or both sides of the top plate (61).

7. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 1 is characterized in that: The fixing device (30) comprises a grooved clamping plate (33), a positioning screw (34) being screwed onto a side wall of the grooved clamping plate (33), and the grooved clamping plate (33) is connected to the annular slide rail (10) via a connecting piece (35).

8. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 1 is characterized in that: The suspension device (40) comprises a connecting plate (41), the upper end of the connecting plate (41) being fixedly provided with a wheel axle (42), both ends of the wheel axle (42) being respectively provided with rollers (44) via bearings (43), and the lower end of the connecting plate (41) being provided with a matching portion.

9. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 8 is characterized in that: The matching portion is a hole (45) provided on the connecting plate (41).

10. The safety auxiliary device for maintenance work of a hydro-generator frame according to claim 8, characterized in that: The matching portion is a pulley (46).

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