CN211524685U

CN211524685U - Mounting and dismounting platform for pins of upper frame support arm of hydroelectric generating set

Info

Publication number: CN211524685U
Application number: CN201921956132.6U
Authority: CN
Inventors: 刘羚; 冯自然; 张海宏; 赵世昊; 黄奎
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-09-18
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a pin dismounting platform for an upper frame support arm of a hydroelectric generating set, which comprises a locking plate, an upper support frame, a lower support frame, a crawling ladder and a folding plate; the upper support frame is of two I-shaped steel structures and is connected to two sides of the upper end of the crawling ladder; the lower support frame is of a two-plate structure and is connected to two sides of the middle part of the crawling ladder; the locking plate is connected with the upper surface of the upper support frame; the folding plate is a flat frame structure with one end hinged at the bottom end of the ladder stand. The device adopts the cat ladder structure, can be connected with generating set frame on through the upper and lower support frame, has solved prior art inefficiency, and the security is low, the big problem of intensity of labour, has simple structure, accomodates the convenience, can adapt to the working face of co-altitude not, and the security is high, and work is high-efficient, has reduced intensity of labour's characteristics.

Description

Mounting and dismounting platform for pins of upper frame support arm of hydroelectric generating set

Technical Field

The utility model belongs to power station maintenance equipment field, concretely relates to hydroelectric set frame support arm pin dismouting platform on.

Background

In the overhaul process of the hydroelectric generating set of the large-scale mixed-flow hydropower station, an upper frame needs to be disassembled and lifted out, firstly, pins on a support arm of the upper frame are ejected out from pin holes on a stator foundation column, but the support arm of the upper frame has a certain height, the height of the stator foundation column is 2-3 meters, the height is several meters away from the ground, and the whole construction space has no stress point, so that great difficulty is brought to the operation of constructors, and great risk also exists on the personal safety of the constructors, in the current method, a bent is erected in the corresponding direction of each radial support arm in an upper wind tunnel loop and is used as a supporting platform when the upper frame is disassembled and installed, the bent is erected to a height of more than 7m (including the height of a stator base), the construction efficiency is low, the bent erecting process has personal safety and structural safety risks, and the constructors have difficulty and risk in climbing to the operation point, therefore, a set of simple operation platform needs to be designed, so that the personal safety of the operation personnel can be ensured while the operation platform is convenient and quick to install.

Disclosure of Invention

The utility model aims to solve the technical problem that a frame support arm pin dismouting platform on hydroelectric set is provided, the device adopts the cat ladder structure, can be connected with the frame on the generating set through the upper and lower support frame, has solved the prior art inefficiency, and the security is low, and the problem that intensity of labour is big has simple structure, accomodates the convenience, can adapt to the working face of co-altitude, and the security is high, and work is high-efficient, has reduced intensity of labour's characteristics.

In order to realize the above design, the utility model adopts the following technical scheme: a pin dismounting platform for an upper rack support arm of a hydroelectric generating set comprises a locking plate, an upper support frame, a lower support frame, a ladder stand and a folding plate; the upper support frame is of two I-shaped steel structures and is connected to two sides of the upper end of the crawling ladder; the lower support frame is of a two-plate structure and is connected to two sides of the middle part of the crawling ladder; the locking plate is connected with the upper surface of the upper support frame; the folding plate is a flat frame structure with one end hinged at the bottom end of the ladder stand.

The ladder stand surface is connected with the ear seat, including monaural seat and ears seat, folded sheet one end is joined in marriage with the ears seat through the pin and is articulated.

The other end of the folding plate is connected with a pull rod; the pull rod comprises an upper pull rod and a lower pull rod which are hinged with each other, one end of the lower pull rod is hinged with the folding plate, and one end of the upper pull rod is hinged with the single lug seat through a pin.

The ear seat is provided with three groups, and the three groups are distributed on different heights of the surface of the ladder stand.

The surface of the locking plate is provided with a kidney-shaped hole which is matched and locked with the upper frame cover plate through threaded connection.

And a round hole is formed in the surface of the lower support frame and is in threaded connection fit with the upper frame support arm.

A tool box is arranged on the surface of the ladder stand; the surface of one side of the tool box is connected with a magnet, and the tool box is connected with the steel ladder stand in a matching way through magnetic force.

A pin dismounting platform for an upper rack support arm of a hydroelectric generating set comprises a locking plate, an upper support frame, a lower support frame, a ladder stand and a folding plate; the upper support frame is of two I-shaped steel structures and is connected to two sides of the upper end of the crawling ladder; the lower support frame is of a two-plate structure and is connected to two sides of the middle part of the crawling ladder; the locking plate is connected with the upper surface of the upper support frame; the folding plate is a flat frame structure with one end hinged at the bottom end of the ladder stand. The device adopts the cat ladder structure, can be connected with generating set frame on through the upper and lower support frame, and simple structure accomodates the convenience, can adapt to the working face of co-altitude not, and the security is high, and work is high-efficient, has reduced intensity of labour.

In a preferred scheme, the surface of the ladder stand is connected with ear seats which comprise a single ear seat and a double ear seat, and one end of the folding plate is matched and hinged with the double ear seat through a pin. Simple structure, during the use, for the operation personnel provide the landing force point when the folded sheet is used for the dismouting pin, articulated structure can make the folded sheet conveniently accomodate, saves space.

In a preferred scheme, the other end of the folding plate is connected with a pull rod; the pull rod comprises an upper pull rod and a lower pull rod which are hinged with each other, one end of the lower pull rod is hinged with the folding plate, and one end of the upper pull rod is hinged with the single lug seat through a pin. The structure is simple, when the folding plate is used, the pull rod limits the tension of the folding plate, and the stress safety of the folding plate is ensured when an operator stands on the folding plate; the upper pull rod and the lower pull rod are hinged with each other, so that the folding plate can be ensured to rotate and fold in the direction of attaching to the tight crawling ladder.

In a preferred scheme, the ear seats are provided with three groups which are distributed on the surface of the ladder stand at different heights. Simple structure, during the use, articulated parts all can be dismantled, and operating personnel can use a set of ear seat installation folded sheet of co-altitude not according to the height of operation face, has improved the adaptability of operation face.

In a preferable scheme, the surface of the locking plate is provided with a kidney-shaped hole which is matched and locked with the upper frame cover plate through threaded connection. Simple structure, during the use, consider that the welding position of upper frame apron supporting shoe on the support arm respectively differs, dislocation in bolt and hole when the platform fastening can be avoided in waist type hole design.

In a preferred scheme, the surface of the lower support frame is provided with a round hole which is matched with the upper frame support arm through threaded connection. Simple structure, during the use, operating personnel passes through the bolt and is connected the lower carriage with last frame support arm, has further guaranteed the stability of being connected of cat ladder and frame on the unit, has promoted the factor of safety of operation.

In a preferable scheme, a tool box is arranged on the surface of the ladder stand; the surface of one side of the tool box is connected with a magnet, and the tool box is connected with the steel ladder stand in a matching way through magnetic force. Simple structure, during the use, operating personnel can put necessary instrument and spare part in the tool holder, has avoided losing and has taken inconvenient problem, and the tool holder passes through magnetic force and connects, and operating personnel can the position of quick adjustment tool holder, and it is very convenient to use.

A pin dismounting platform for an upper rack support arm of a hydroelectric generating set comprises a locking plate, an upper support frame, a lower support frame, a ladder stand and a folding plate; the upper support frame is of two I-shaped steel structures and is connected to two sides of the upper end of the crawling ladder; the lower support frame is of a two-plate structure and is connected to two sides of the middle part of the crawling ladder; the locking plate is connected with the upper surface of the upper support frame; the folding plate is a flat frame structure with one end hinged at the bottom end of the ladder stand. The device adopts the cat ladder structure, can be connected with generating set frame on through the upper and lower support frame, has solved prior art inefficiency, and the security is low, the big problem of intensity of labour, has simple structure, accomodates the convenience, can adapt to the working face of co-altitude not, and the security is high, and work is high-efficient, has reduced intensity of labour's characteristics.

Drawings

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

Fig. 2 is a left side view structure diagram of the present invention.

Fig. 3 is a schematic top view of the present invention.

The reference numbers in the figures are: the locking plate comprises a locking plate 1, a kidney-shaped hole 11, an upper support frame 2, a lower support frame 3, a round hole 31, a ladder stand 4, a single lug seat 41, a double lug seat 42, a folding plate 5, a pull rod 6, an upper pull rod 61, a lower pull rod 62 and a tool box 7.

Detailed Description

As shown in fig. 1 to 3, a platform for disassembling and assembling pins of an upper frame support arm of a hydroelectric generating set comprises a locking plate 1, an upper support frame 2, a lower support frame 3, a ladder stand 4 and a folding plate 5; the upper support frame 2 is of two I-shaped steel structures and is connected to two sides of the upper end of the crawling ladder 4; the lower support frame 3 is of a two-plate structure and is connected to two sides of the middle part of the ladder stand 4; the locking plate 1 is connected with the upper surface of the upper support frame 2; the folding plate 5 is a flat frame structure with one end hinged at the bottom end of the ladder stand 4. The device adopts 4 structures of cat ladder, can be connected with generating set frame on through upper and lower support frame 3, and simple structure accomodates the convenience, can adapt to the working face of co-altitude not, and the security is high, and work is high-efficient, has reduced intensity of labour.

In a preferred scheme, the surface of the ladder stand 4 is connected with ear seats which comprise a single ear seat 41 and a double ear seat 42, and one end of the folding plate 5 is hinged with the double ear seat 42 through a pin. Simple structure, during the use, for the operation personnel provide the landing force point when folded sheet 5 is used for the dismouting pin, articulated structure can make 5 convenient accomodations of folded sheet, saves space.

In a preferred scheme, the other end of the folding plate 5 is connected with a pull rod 6; the pull rod 6 comprises an upper pull rod 61 and a lower pull rod 62 which are hinged with each other, one end of the lower pull rod 62 is hinged with the folding plate 5, and one end of the upper pull rod 61 is hinged with the single lug seat 41 through a pin. The structure is simple, when the folding plate is used, the pull rod 6 limits the tension of the folding plate 5, and the stress safety of the folding plate 5 is ensured when an operator stands on the folding plate 5; the upper pull rod 61 and the lower pull rod 62 are hinged with each other, so that the folding plate 5 can be ensured to rotate and fold in the direction of being attached to the close climbing ladder 4.

In the preferred scheme, the ear seat is provided with three groups, and the three groups are distributed on the surface of the ladder stand 4 at different heights. Simple structure, during the use, articulated parts all can be dismantled, and operating personnel can use a set of ear seat installation folded sheet 5 of co-altitude not according to the height of operation face, has improved the adaptability of operation face.

In a preferable scheme, the surface of the locking plate 1 is provided with a kidney-shaped hole 11 which is matched and locked with the upper frame cover plate through threaded connection. Simple structure, during the use, consider that the welding position of upper frame apron supporting shoe on the support arm respectively differs, the dislocation in bolt and hole when waist type hole 11 design can avoid the platform fastening.

In a preferable scheme, a round hole 31 is formed in the surface of the lower support frame 3 and is matched with the upper frame support arm in a threaded connection mode. Simple structure, during the use, operating personnel passes through the bolt and is connected bottom suspension strut 3 with last frame support arm, has further guaranteed the stability of being connected of cat ladder 4 and frame on the unit, has promoted the factor of safety of operation.

In a preferable scheme, a tool box 7 is arranged on the surface of the ladder stand 4; the surface of one side of the tool box 7 is connected with a magnet, and the tool box 7 is connected with the steel ladder 4 in a matching way through magnetic force. Simple structure, during the use, operating personnel can put necessary instrument and spare part in tool holder 7, has avoided losing and has taken inconvenient problem, and tool holder 7 passes through magnetic force and connects, and operating personnel can the position of quick adjustment tool holder 7, and it is very convenient to use.

When the platform for disassembling and assembling pins of the upper frame support arm of the water turbine generator set is installed and used, the upper support frame 2 is of two I-shaped steel structures and is connected to two sides of the upper end of the crawling ladder 4; the lower support frame 3 is of a two-plate structure and is connected to two sides of the middle part of the ladder stand 4; the locking plate 1 is connected with the upper surface of the upper support frame 2; the folding plate 5 is a flat frame structure with one end hinged at the bottom end of the ladder stand 4. The device adopts 4 structures of cat ladder, can be connected with generating set frame on through upper and lower support frame 3, and simple structure accomodates the convenience, can adapt to the working face of co-altitude not, and the security is high, and work is high-efficient, has reduced intensity of labour.

During the use, 4 surface connections on cat ladder have the ear seat, including monaural seat 41 and

ears seat

42, 5 one ends of folded sheet are joined in marriage with ears seat 42 through the pin and are articulated, provide the landing foot impetus for the operation personnel when folded sheet 5 is used for the dismouting pin, and articulated structure can make 5 convenient accomodations of folded sheet, saves space.

When in use, the other end of the folding plate 5 is connected with a pull rod 6; the pull rod 6 comprises an upper pull rod 61 and a lower pull rod 62 which are hinged with each other, one end of the lower pull rod 62 is hinged with the folding plate 5, one end of the upper pull rod 61 is hinged with the single-lug seat 41 through a pin, the pull rod 6 limits the tension of the folding plate 5, and the stress safety of the folding plate 5 is ensured when an operator stands on the folding plate 5; the upper pull rod 61 and the lower pull rod 62 are hinged with each other, so that the folding plate 5 can be ensured to rotate and fold in the direction of being attached to the close climbing ladder 4.

During the use, the ear seat is provided with three groups, distributes at 4 surperficial not co-altitude on cat ladder, and articulated parts all can be dismantled, and operating personnel can use a set of ear seat installation folded sheet 5 of co-altitude not according to the height of operation face, has improved the adaptability of operation face.

When the locking plate is used, the waist-shaped hole 11 is formed in the surface of the locking plate 1 and is matched and locked with the upper frame cover plate through threaded connection, and the waist-shaped hole 11 is designed to avoid dislocation of a bolt and a hole when the platform is fastened by considering that the welding positions of the upper frame cover plate supporting block on the supporting arm are different.

During the use, round hole 31 has been seted up on the lower carriage 3 surface and has been passed through the threaded connection cooperation with last frame support arm, and operating personnel passes through the bolt and is connected lower carriage 3 with last frame support arm, has further guaranteed the stability of being connected of cat ladder 4 with frame on the unit, has promoted the factor of safety of operation.

When in use, the tool box 7 is arranged on the surface of the ladder stand 4; the magnet is connected with 7 side surfaces of tool holder, and tool holder 7 is connected through magnetic force and 4 cooperations of steel cat ladder, and operating personnel can put necessary instrument and spare part in tool holder 7, has avoided losing and has taken inconvenient problem, and tool holder 7 passes through magnetic force and connects, and operating personnel can the position of quick adjustment tool holder 7, and it is very convenient to use.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a hydroelectric set goes up frame support arm pin dismouting platform which characterized in that: the novel ladder comprises a locking plate (1), an upper support frame (2), a lower support frame (3), a ladder stand (4) and a folding plate (5); the upper supporting frame (2) is of two I-shaped steel structures and is connected to two sides of the upper end of the crawling ladder (4); the lower support frame (3) is of a two-plate structure and is connected to two sides of the middle part of the ladder stand (4); the locking plate (1) is connected with the upper surface of the upper support frame (2); the folding plate (5) is a flat frame structure with one end hinged at the bottom end of the ladder stand (4).

2. The hydroelectric generating set upper frame support arm pin disassembling and assembling platform according to claim 1, characterized in that: the ladder (4) is connected with an ear seat on the surface, and comprises a single ear seat (41) and a double ear seat (42), and one end of the folding plate (5) is hinged with the double ear seat (42) through a pin.

3. The hydroelectric generating set upper frame support arm pin disassembling and assembling platform according to claim 1, characterized in that: the other end of the folding plate (5) is connected with a pull rod (6); the pull rod (6) comprises an upper pull rod (61) and a lower pull rod (62) which are hinged with each other, one end of the lower pull rod (62) is hinged with the folding plate (5), and one end of the upper pull rod (61) is hinged with the single-lug seat (41) through a pin.

4. The platform for disassembling and assembling pins of upper frame arms of water turbine generator sets according to claim 2, characterized in that: the ear seats are provided with three groups which are distributed on the surface of the ladder stand (4) at different heights.

5. The hydroelectric generating set upper frame support arm pin disassembling and assembling platform according to claim 1, characterized in that: the surface of the locking plate (1) is provided with a waist-shaped hole (11) which is matched and locked with the upper frame cover plate through threaded connection.

6. The hydroelectric generating set upper frame support arm pin disassembling and assembling platform according to claim 1, characterized in that: the surface of the lower support frame (3) is provided with a round hole (31) which is matched with the upper frame support arm through threaded connection.

7. The hydroelectric generating set upper frame support arm pin disassembling and assembling platform according to claim 1, characterized in that: a tool box (7) is arranged on the surface of the ladder stand (4); the surface of one side of the tool box (7) is connected with a magnet, and the tool box (7) is matched and connected with the steel ladder (4) through magnetic force.