CN219906905U - Lifting platform for overhauling inside upper end shaft of generator set - Google Patents
Lifting platform for overhauling inside upper end shaft of generator set Download PDFInfo
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- CN219906905U CN219906905U CN202320578193.3U CN202320578193U CN219906905U CN 219906905 U CN219906905 U CN 219906905U CN 202320578193 U CN202320578193 U CN 202320578193U CN 219906905 U CN219906905 U CN 219906905U
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- manned platform
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims 1
- 241000282326 Felis catus Species 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009193 crawling Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an inner overhaul lifting platform of an upper end shaft of a generator set, which comprises a top platform of an annular structure, wherein the top platform is lapped on the top of the upper end shaft; the inner wall of the top platform is connected with a cross rod, and the surface of the cross rod is connected with lifting equipment; the hoisting equipment is connected with the manned platform below through a steel cable; the side surface of the manned platform is connected with a plurality of groups of telescopic mechanisms which are in interference fit with the inner wall of the upper end shaft. The device has solved among the prior art when overhauling the upper end axle, adopts the cat ladder to overhaul, and the operation space is little, the operation degree of difficulty is high, influences the problem of efficiency of construction, but have automatic control lift, the operation space is big, has reduced the operation degree of difficulty, has promoted the characteristics of efficiency of construction.
Description
Technical Field
The utility model belongs to the technical field of overhaul of a water turbine unit, and particularly relates to an internal overhaul lifting platform for an upper end shaft of a generator unit.
Background
In the maintenance operation of the upper end shaft of the hydroelectric generating set, an operator is required to go down into the upper end shaft to carry out maintenance operation on the rotor lead copper bar on the inner wall of the upper end shaft; in the prior art, a rope ladder or an extension ladder is often erected in the upper end shaft so as to allow operators to climb up and down for maintenance; such a maintenance method has the following problems:
1, operators need hands and feet to balance the body on the ladder, and the maintenance operation is difficult due to poor posture;
2, the moving range provided by the cat ladder is extremely small, which is not beneficial to the development of maintenance tools;
3, during the cat ladder operation, instrument and spare part need be preserved properly, in time adorn into work clothes or mount on the couple that the clothes surface set up, have certain risk that drops, and reduced operating efficiency.
In summary, it is necessary to design a lifting platform for overhauling the inside of the upper end shaft to solve the above problems.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an upper end shaft internal overhaul lifting platform, which solves the problems that a crawling ladder is adopted for overhaul when an upper end shaft is overhauled in the prior art, the operation space is small, the operation difficulty is high and the construction efficiency is affected.
In order to realize the design, the utility model adopts the following technical scheme: the upper end shaft inner overhaul lifting platform comprises a top platform of an annular structure, wherein the top platform is lapped on the top of the upper end shaft; the inner wall of the top platform is connected with a cross rod, and the surface of the cross rod is connected with lifting equipment; the hoisting equipment is connected with the manned platform below through a steel cable; the surface of the manned platform is connected with a plurality of hanging rings which are connected with a steel cable; the side surface of the manned platform is connected with a plurality of groups of telescopic mechanisms which are in interference fit with the inner wall of the upper end shaft.
Further, the hoisting device is a hoist or an electric hoist that can be used for carrying people.
Further, the steel ropes comprise vertical steel ropes directly connected with the hoisting equipment and a plurality of inclined steel ropes connected with the manned platform below; in the use process, besides the steel cable, a safety rope is additionally arranged to fixedly connect the manned platform with the upper end shaft body or other external stable fixed points, so that the manned platform is prevented from falling down directly after the steel cable is broken.
Preferably, the lower surface of the top platform is provided with a step-shaped structure which is in clamping fit with the step-shaped structure at the top of the upper end shaft; the top platform surface is provided with a plurality of holes which are matched with the protruding bolts at the top of the upper end shaft in a clamping way.
Further, the quantity and the position of the open holes are in one-to-one correspondence with the protruding bolts at the top of the upper end shaft, so that the protruding bolts are prevented from being damaged due to pressure when the top platform is buckled at the top of the upper end shaft.
Preferably, the edge of the manned platform is connected with a fence, and the outer side surface of the fence is connected with a group of telescopic mechanisms which are in interference fit with the inner wall of the upper end shaft
Further, the height of the fence is 1.2m, and the telescopic mechanisms on the outer side surface of the fence and the telescopic mechanisms on the side surface of the manned platform are identical in structure, and are all provided with 4 groups.
Further, the number of the hanging rings is three, and the hanging rings are connected through three steel ropes with equal length, so that the manned platform is kept horizontal and not capsized under the pulling of the three steel ropes in the process of lowering.
Preferably, the telescopic mechanism comprises an internally threaded sleeve, one end of the internally threaded sleeve is connected with the side surface of the manned platform, and the other end of the internally threaded sleeve is connected with the externally threaded sleeve in a threaded manner.
Preferably, the inner wall of the external thread sleeve is connected with a spring, and the other end of the spring is connected with one end of the sliding rod; the sliding rod slides along the inner wall of the externally threaded sleeve.
Preferably, one end of the sliding rod is connected with a U-shaped bracket, and the inner wall of the U-shaped bracket is rotationally connected with a pulley in rolling fit with the inner wall of the upper end shaft.
Further, in the telescopic mechanism, the interval between the internal thread sleeve and the external thread sleeve is adjusted, so that the elastic force of the spring is adjusted, and the instability caused by too small elastic force is avoided; then the spring supports against the inner wall of the upper end shaft under the action of elasticity, and the manned platform can slide up and down along the inner wall of the upper end shaft through the pulley.
Further, in use, an operator stands on the man-carrying platform, and the switch controller of the hoisting device extends to the man-carrying platform through the cable for the operator to control.
Further, the upper end shaft is of a cylindrical structure with an upper opening and a lower opening, the inner wall is connected with two groups of copper bars, and the top of the upper end shaft is provided with a step structure; when overhauling, the copper bar needs to be overhauled by moving up and down in the upper end shaft.
Further, the diameter of the manned platform is smaller than the inner diameter of the upper end shaft, and the distance between the manned platform and the inner wall of the upper end shaft is filled by the extending telescopic mechanism when the manned platform is lowered; the sufficient gap between the manned platform and the inner wall of the upper end shaft can prevent the manned platform from being scratched with the two groups of copper bars on the inner wall of the upper end shaft.
The lifting platform for overhauling the inside of the upper end shaft has the following beneficial effects:
1, the device has simple structure and convenient use, can provide a wide and stable maintenance operation platform when the inside of the upper end shaft is maintained, and maintenance staff does not need to operate through a specific posture, so that hands and feet can be completely liberated, and the maintenance operation efficiency is greatly improved;
2, the device is lifted by the small-sized hoisting equipment, so that an maintainer is not required to climb up and down, and the labor intensity and the operation difficulty are reduced;
3, the telescopic mechanism is matched with the inside of the upper end shaft, so that the platform can be kept stable in the up-down process and cannot shake; the operation safety is improved, tools and equipment in operation can be placed on the platform for up-and-down transportation at one time, and the risk that parts and tools fall is avoided.
Drawings
FIG. 1 is a schematic view of the present utility model mated with an upper shaft;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model mated with an upper shaft;
FIG. 4 is a schematic view of a telescopic mechanism according to the present utility model;
FIG. 5 is a schematic view of the structure of the upper shaft in the background of the utility model;
the reference numerals in the drawings are: top platform 1, upper end shaft 11, horizontal pole 12, hoisting equipment 2, cable 21, manned platform 3, rail 31, rings 32, telescopic machanism 4, internal thread sleeve 41, external thread sleeve 42, spring 43, slide bar 44, U-shaped support 5, pulley 6.
Detailed Description
As shown in fig. 1 to 4, an inner overhaul lifting platform of an upper end shaft 11 comprises a top platform 1 with an annular structure, wherein the top platform 1 is lapped on the top of the upper end shaft 11; the inner wall of the top platform 1 is connected with a cross rod 12, and the surface of the cross rod 12 is connected with lifting equipment 2; the hoisting equipment 2 is connected with the manned platform 3 below through a steel rope 21; the surface of the manned platform 3 is connected with a plurality of hanging rings 32 which are connected with the steel ropes 21; the side surface of the manned platform 3 is connected with a plurality of groups of telescopic mechanisms 4 which are in interference fit with the inner wall of the upper end shaft 11.
Further, the hoisting device 2 is a hoist or an electric hoist that can be used for carrying people.
Further, the steel cables 21 comprise a vertical steel cable 21 directly connected with the hoisting device 2 and a plurality of diagonal steel cables 21 connected with the manned platform 3 below; in the use process, besides the steel cable 21, a safety rope is additionally arranged to fixedly connect the manned platform 3 with the upper end shaft 11 body or other external stable fixed points, so that the manned platform 3 is prevented from falling down directly after the steel cable 21 is broken.
Preferably, the lower surface of the top platform 1 is provided with a step-shaped structure which is in clamping fit with the step-shaped structure at the top of the upper end shaft 11; a plurality of holes are formed in the surface of the top platform 1 and are matched with the protruding bolts at the top of the upper end shaft 11 in a clamping mode.
Further, the number and the positions of the holes are in one-to-one correspondence with the protruding bolts at the top of the upper end shaft 11, so that the protruding bolts are prevented from being damaged due to pressure when the top platform 1 is buckled at the top of the upper end shaft 11.
Preferably, the edge of the manned platform 3 is connected with a fence 31, and the outer side surface of the fence 31 is connected with a group telescopic mechanism 4 which is in interference fit with the inner wall of the upper end shaft 11
Further, the height of the fence 31 is 1.2m, and the telescopic mechanisms 4 on the outer side surface of the fence 31 are identical to the telescopic mechanisms 4 on the side surface of the manned platform in structure, and are all provided with 4 groups.
Further, the number of the hanging rings 32 is three, and the hanging rings are connected through three steel ropes 21 with equal length, so that the manned platform 3 is kept horizontal and not capsized under the pulling of the three steel ropes 21 in the process of lowering.
Preferably, the telescopic mechanism 4 comprises an internally threaded sleeve 41, one end of the internally threaded sleeve 41 being connected to the lateral surface of the manned platform 3 and the other end being open and threaded with an externally threaded sleeve 42.
Preferably, the inner wall of the externally threaded sleeve 42 is connected with a spring 43, and the other end of the spring 43 is connected with one end of a sliding rod 44; the sliding rod 44 slides along the inner wall of the externally threaded sleeve 42.
Preferably, one end of the sliding rod 44 is connected with a U-shaped bracket 5, and the inner wall of the U-shaped bracket 5 is rotatably connected with a pulley 6 in rolling fit with the inner wall of the upper end shaft 11.
Further, in the telescopic mechanism 4, the interval between the internal thread sleeve 41 and the external thread sleeve 42 is adjusted, so that the elastic force of the spring 43 is adjusted, and the elastic force is not too small to cause instability; the spring 43 then abuts against the inner wall of the upper shaft 11 under the action of the spring force, and the people carrier 3 can slide up and down along the inner wall of the upper shaft 11 via the pulley 6.
Further, in use, an operator stands on the man-carrying platform 3, and the switch controller of the hoisting device 2 extends to the man-carrying platform 3 through a cable for the operator to control himself.
As shown in fig. 5, the upper end shaft 11 is of a cylindrical structure with an upper opening and a lower opening, the inner wall is connected with two groups of copper bars, and the top is provided with a step structure; during maintenance, the upper end shaft 11 is required to move up and down to maintain the copper bars.
Further, the diameter of the manned platform 3 is smaller than the inner diameter of the upper end shaft 11, and the distance between the manned platform and the inner wall of the upper end shaft 11 is filled by the extending telescopic mechanism 4 when the manned platform is lowered; the sufficient gap between the manned platform 3 and the inner wall of the upper end shaft 11 can prevent the two groups of copper bars on the inner wall of the manned platform 3 and the inner wall of the upper end shaft 11 from rubbing.
The working principle of the lifting platform for overhauling the inside of the upper end shaft 11 provided by the utility model is as follows:
when the manned platform is used, the manned platform 3 is connected with the lifting equipment 2 of the top platform 1 through the steel rope 21, then the manned platform 3 is firstly lowered into the upper end shaft 11, then the top platform 1 is buckled at the top of the upper end shaft 11 for lap joint, and a plurality of openings of the top platform 1 are aligned with a plurality of raised bolts on the upper surface of the upper end shaft 11; then lifting the manned platform 3 to the uppermost part, enabling personnel to enter the upper part of the manned platform 3 from the opening of the upper part of the upper end shaft 11, carrying and placing tools and parts above the manned platform 3, tying a safety belt, and enabling the lifting equipment 2 to lower the manned platform 3 to the working height for working, and then after one working, continuing to lower the lifting platform to continue to work at the lower position until maintenance work is completed.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (6)
1. The utility model provides an inside elevating platform that overhauls of generating set upper end axle which characterized in that: the top platform (1) comprises an annular structure, and the top platform (1) is lapped on the top of the upper end shaft (11); the inner wall of the top platform (1) is connected with a cross rod (12), and the surface of the cross rod (12) is connected with lifting equipment (2); the lifting equipment (2) is connected with the manned platform (3) below through a steel cable (21); the surface of the manned platform (3) is connected with a plurality of hanging rings (32) which are connected with the steel cable (21); the side surface of the manned platform (3) is connected with a plurality of groups of telescopic mechanisms (4) which are in interference fit with the inner wall of the upper end shaft (11).
2. The upper end shaft interior service lift platform of claim 1, wherein: the lower surface of the top platform (1) is provided with a step-shaped structure which is matched with the step-shaped structure at the top of the upper end shaft (11) in a clamping way; the surface of the top platform (1) is provided with a plurality of holes which are matched with the protruding bolts at the top of the upper end shaft (11) in a clamping way.
3. The upper end shaft interior service lift platform of claim 1, wherein: the edge of the manned platform (3) is connected with a fence (31), and the outer side surface of the fence (31) is connected with a plurality of groups of telescopic mechanisms (4) which are in interference fit with the inner wall of the upper end shaft (11).
4. The upper end shaft interior service lift platform of claim 1, wherein: the telescopic mechanism (4) comprises an internal thread sleeve (41), one end of the internal thread sleeve (41) is connected with the side surface of the manned platform (3), and the other end of the internal thread sleeve is connected with an external thread sleeve (42) in a threaded manner.
5. The upper end shaft interior service lift platform of claim 4, wherein: the inner wall of the external thread sleeve (42) is connected with a spring (43), and the other end of the spring (43) is connected with one end of a sliding rod (44); the sliding rod (44) slides along the inner wall of the externally threaded sleeve (42).
6. The upper end shaft interior service lift platform of claim 5, wherein: one end of the sliding rod (44) is connected with a U-shaped bracket (5), and the inner wall of the U-shaped bracket (5) is rotationally connected with a pulley (6) in rolling fit with the inner wall of the upper end shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320578193.3U CN219906905U (en) | 2023-03-22 | 2023-03-22 | Lifting platform for overhauling inside upper end shaft of generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320578193.3U CN219906905U (en) | 2023-03-22 | 2023-03-22 | Lifting platform for overhauling inside upper end shaft of generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219906905U true CN219906905U (en) | 2023-10-27 |
Family
ID=88430949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320578193.3U Active CN219906905U (en) | 2023-03-22 | 2023-03-22 | Lifting platform for overhauling inside upper end shaft of generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219906905U (en) |
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2023
- 2023-03-22 CN CN202320578193.3U patent/CN219906905U/en active Active
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