CN218624053U

CN218624053U - Hydraulic turbine middle cone cat ladder

Info

Publication number: CN218624053U
Application number: CN202221958379.3U
Authority: CN
Inventors: 杨汝班; 谢勇明
Original assignee: Guangxi Guiguan Electric Power Co ltd; Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co ltd
Current assignee: Guangxi Guiguan Electric Power Co ltd; Dahua General Hydropower Plant Of Guangxi Guiguan Electric Power Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-03-14
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a middle cone crawling ladder of a water turbine, which comprises a ladder frame and a welding sheet; the ladder frame comprises two upright posts and a plurality of pedal rods, and the pedal rods are arranged between the two upright posts at intervals along the length direction of the upright posts; the upper end of two pole settings is located respectively including four to the welding piece, and the equal fixedly connected with a slice welding piece in both sides of every pole setting, welding piece are provided with the hypotenuse, and this hypotenuse protrusion is outside the pole setting, and becomes the contained angle setting between hypotenuse and the pole setting, the hypotenuse be used for with the inner wall welded fastening of hydraulic turbine well awl. The utility model discloses a cat ladder is convenient for with hydraulic turbine well awl welded fastening to the maintainer scrambles business turn over hydraulic turbine well awl.

Description

Hydraulic turbine middle cone cat ladder

Technical Field

The utility model relates to a cat ladder technical field, concretely relates to hydraulic turbine well awl cat ladder.

Background

The hydraulic turbine is installed in the power station and is the equipment that is used for driving the electricity generation of generator, and in the maintenance of the hydraulic turbine, maintainer need climb into in the hydraulic turbine middle part conical shell, changes and repairs spare part. Because the inside degree of depth of well awl is darker, when the maintainer went forward to maintain, can only trample the rib of climbing and attaching the inner wall, very easily slips and falls, and safety can't be ensured. Consequently need welding cat ladder in the well awl to the maintainer climbs the business turn over, the upper end and the well awl inner wall contact surface of present cat ladder are less at present, and the welding is difficult, is not convenient for fix the cat ladder in the hydraulic turbine well awl.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a hydraulic turbine well awl cat ladder is provided, be convenient for with hydraulic turbine well awl welded fastening to the maintainer of being convenient for utilizes cat ladder climbing business turn over hydraulic turbine well awl.

In order to solve the problem, the utility model adopts the following technical scheme:

the middle cone crawling ladder of the water turbine comprises a ladder frame and a welding sheet; the ladder frame comprises two upright posts and a plurality of pedal rods, and the pedal rods are arranged between the two upright posts at intervals along the length direction of the upright posts; the upper end of two pole settings is located respectively including four to the welding piece, and the equal fixedly connected with a slice welding piece in both sides of every pole setting, welding piece are provided with the hypotenuse, and this hypotenuse protrusion is outside the pole setting, and becomes the contained angle setting between hypotenuse and the pole setting, the hypotenuse be used for with the inner wall welded fastening of hydraulic turbine well awl.

As a further improvement of the above technical solution:

the welding piece includes welding piece A and welding piece B, welding piece A's width is greater than welding piece B's width, welding piece A sets up on the relative side of two pole settings, welding piece B sets up on the side that two pole settings carried on the back mutually, because welding piece A is different with welding piece B's width, its hypotenuse protrusion is also different in the outer distance of pole setting, in the inner wall cambered surface of well awl, the pole setting both sides are different apart from the distance of wall, therefore, be greater than welding piece B's width through making welding piece A's width, can let welding piece A and welding piece B's hypotenuse all with the hydraulic turbine in awl inner wall contact.

The welding sheet and the upright rod are fixedly connected through bolts and nuts, so that the welding sheet suitable for use is replaced.

The lower extreme of ladder frame is provided with the podotheca, and the podotheca includes sleeve portion and horizontal slot portion, and the sleeve portion is including two of cover in two pole setting lower extremes, and the both ends of horizontal slot portion are connected with the upper end of two sleeve portions respectively, and the opening of horizontal slot portion is up, and the horizontal slot portion is arranged in to the lowest one-level foot bar, often has ponding in the well awl, sets up soaking of the reducible cat ladder of podotheca, is favorable to protecting the cat ladder.

The lower end of the sleeve part is provided with a ground mat, and the lower end face of the ground mat and the upright stanchion form an acute angle so as to be attached to the bottom surface of the middle cone.

The lower terminal surface of ground mat is provided with several antislip strips, increases bottom surface frictional force, even the upper end is detached and is welded the cat ladder and also be difficult for slipping.

The utility model has the advantages that:

the utility model discloses a hydraulic turbine well awl cat ladder sets up the welding piece through the both sides in the pole setting, increases the pole setting upper end and the contact surface of hydraulic turbine well awl inner wall, and the welding piece is provided with the hypotenuse moreover, and when the ladder frame slope of being convenient for was placed, the hypotenuse leaned on and leans on in hydraulic turbine well awl inner wall, was favorable to with its welded fastening. After in the hydraulic turbine awl through with ladder frame steady welding, make things convenient for the maintainer to climb in and out.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a welding tab a and a welding tab B in the present invention.

Fig. 3 is a usage state diagram of the present invention.

The reference numbers in the figures: 1. a floor mat; 11. anti-slip strips; 2. a foot cover; 21. a sleeve portion; 22. a transverse groove part; 3. a ladder frame; 31. erecting a rod; 32. a foot bar; 4. welding the sheet; 41. welding a sheet A; 42. welding a sheet B; 43. a bevel edge; 5. a nut; 6. a bolt; 7. a turbine middle cone.

Detailed Description

As shown in fig. 1 and 2, the middle cone ladder stand of the water turbine of the embodiment comprises a ladder frame 3 and a welding sheet 4; the ladder frame 3 comprises two upright posts 31 and a plurality of pedal rods 32, and the pedal rods 32 are arranged between the two upright posts 31 at intervals along the length direction of the upright posts 31; welding piece 4 is including four, locates the upper end of two pole settings 31 respectively, and the equal fixedly connected with a slice welding piece 4 in both sides of every pole setting 31, welding piece 4 are provided with hypotenuse 43, and this hypotenuse 43 protrusion is outside pole setting 31, and becomes the contained angle setting between hypotenuse 43 and the pole setting 31, and hypotenuse 43 be used for with the hydraulic turbine in the inner wall welded fastening of awl, in addition, hypotenuse 43 also can with rib fixed connection on the inner wall. The welding piece 4 can be trapezoidal shape, and the lower apex angle that its hypotenuse 43 corresponds is the acute angle, goes up the apex angle and is the obtuse angle, when placing the slope of ladder frame 3, and hypotenuse 43 can be with the inner wall contact of hydraulic turbine well awl.

Because the inner wall of awl is the cambered surface in the hydraulic turbine, when 3 inclinations of ladder frame are in the hydraulic turbine awl, the distance between the side that two pole setting 31 are relative and the inner wall is greater than the distance between the side that two pole setting 31 carried on the back mutually to the inner wall, therefore, welding sheet 4 is including welding piece A41 and welding piece B42, the width of welding piece A41 is greater than the width of welding piece B42, welding piece A41 sets up on the side that two pole setting 31 are relative, welding piece B42 sets up on the side that two pole setting 31 carried on the back mutually, so that the hypotenuse 43 of welding piece A41 and welding piece B42 all with the hydraulic turbine in awl inner wall contact. The welding sheet 4 and the upright rod 31 are fixedly connected through a bolt 6 and a nut 5. Specifically, two sides of the upper end of the upright rod 31 are 1 plane, so that the welding sheet 4 can be attached to the side surface of the upright rod 31, and two groups of connecting holes which can be overlapped are arranged on the upright rod 31 and the welding sheet 4, are respectively used for passing through the bolts 6, and are screwed and fixed through the nuts 5.

The lower extreme of ladder frame 3 is provided with podotheca 2, and podotheca 2 includes sleeve portion 21 and horizontal slot part 22, and sleeve portion 21 includes two in the cover of two pole setting 31 lower extremes, and the both ends of horizontal slot part 22 are connected with the upper end of two sleeve portions 21 respectively, and the opening of horizontal slot part 22 is up, and the minimum step lever 32 is arranged in horizontal slot part 22. The lower end of the sleeve part 21 is provided with a floor mat 1, the lower end surface of the floor mat 1 and the upright rods 31 form an acute angle, and the lower end surface of the floor mat 1 is provided with a plurality of anti-slip strips 11.

As shown in fig. 3, in the time of the use, arrange ladder frame 3 in hydraulic turbine well awl 7, and the slope is settled, the hypotenuse 43 of weld plate 4 leans on the inner wall of hydraulic turbine well awl 7 or the rib of inner wall, the lower terminal surface of ground mat 1 pastes in hydraulic turbine well awl 7 bottom surface, then with weld plate 4 and the fixed welding of hydraulic turbine well awl 7, through the contact that utilizes four weld plates 4, increase the position that can weld, be favorable to improving ladder frame 3's stability, convenient to overhaul personnel safety climbing business turn over.

Claims

1. Hydraulic turbine well awl cat ladder, its characterized in that: comprises a ladder frame (3) and a welding sheet (4); the ladder frame (3) comprises two upright posts (31) and a plurality of pedal rods (32), and the pedal rods (32) are arranged between the two upright posts (31) at intervals along the length direction of the upright posts (31); welding piece (4) are including four, locate the upper end of two pole settings (31) respectively, the equal fixedly connected with a slice welding piece (4) in both sides of every pole setting (31), and welding piece (4) are provided with hypotenuse (43), and this hypotenuse (43) protrusion is outside pole setting (31), and becomes the contained angle setting between hypotenuse (43) and pole setting (31), and hypotenuse (43) are used for with the inner wall welded fastening of hydraulic turbine well awl.

2. The mid-cone ladder of the water turbine as claimed in claim 1, wherein: welding piece (4) are including welding piece A (41) and welding piece B (42), and the width of welding piece A (41) is greater than the width of welding piece B (42), and welding piece A (41) set up on the side that two pole settings (31) are relative, and welding piece B (42) set up on the side that two pole settings (31) carried on the back mutually to make hypotenuse (43) of welding piece A (41) and welding piece B (42) all with the hydraulic turbine in awl inner wall contact.

3. The mid-cone ladder of the water turbine as claimed in claim 1, wherein: the welding sheet (4) is fixedly connected with the upright rod (31) through a bolt (6) and a nut (5).

4. The mid-cone ladder of the water turbine as claimed in claim 1, wherein: the lower extreme of ladder frame (3) is provided with podotheca (2), and podotheca (2) include sleeve portion (21) and horizontal slot portion (22), and sleeve portion (21) are including covering two in two pole setting (31) lower extremes, and the both ends of horizontal slot portion (22) are connected with the upper end of two sleeve portions (21) respectively, and the opening of horizontal slot portion (22) is up, and minimum one-level foot bar (32) are arranged in horizontal slot portion (22).

5. The mid-cone ladder of the water turbine as claimed in claim 4, wherein: the lower end of the sleeve part (21) is provided with a ground mat (1), and an acute angle is formed between the lower end surface of the ground mat (1) and the vertical rod (31).

6. The mid-cone ladder of the water turbine as claimed in claim 5, wherein: the lower end face of the ground mat (1) is provided with a plurality of anti-slip strips (11).