CN219733274U - Safe access cat ladder device of generator wind tunnel - Google Patents
Safe access cat ladder device of generator wind tunnel Download PDFInfo
- Publication number
- CN219733274U CN219733274U CN202321166302.7U CN202321166302U CN219733274U CN 219733274 U CN219733274 U CN 219733274U CN 202321166302 U CN202321166302 U CN 202321166302U CN 219733274 U CN219733274 U CN 219733274U
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- Prior art keywords
- ladder
- locking piece
- locking
- rod
- wind tunnel
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- 241000282326 Felis catus Species 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000007306 turnover Effects 0.000 claims description 2
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Ladders (AREA)
Abstract
The utility model relates to the field of overhauling of generator sets, in particular to a safe access ladder stand device for a wind tunnel of a generator, which comprises a ladder body, an adjusting mechanism and a locking mechanism; the ladder body comprises two ladder beams and a plurality of pedal rods which are arranged in parallel, and two ends of each pedal rod are respectively connected with the two ladder beams; the adjusting mechanism comprises an adjusting screw rod which is in threaded connection with the bottom end of the ladder beam, and the adjusting mechanism is used for enabling two sides of the bottom of the ladder body to contact the supporting surface; the locking mechanism is arranged on the ladder beam or the pedal rod and comprises an upper locking piece and a lower locking piece, the upper locking piece and the lower locking piece are connected with the ladder beam or the pedal rod, the upper locking piece or the lower locking piece is detachably connected with a locking rod, and the locking mechanism is used for locking the ladder body at the lap joint position. The utility model has the advantages that the two sides of the bottom of the ladder body are contacted with the uneven supporting surface through the adjusting mechanism, so that the cat ladder device is prevented from shaking; and set up locking mechanical system and lock cat ladder device, avoid cat ladder device to follow the slippage of upper frame bottom plate overlap joint department, cause danger to the maintainer.
Description
Technical Field
The utility model relates to the field of overhauling of generator sets, in particular to a safe access ladder stand device for a wind tunnel of a generator.
Background
During maintenance of the hydroelectric generating set, the generator rotor, the wire rod, the insulating box, and the like need to repeatedly enter and exit the generator wind tunnel, the top of the wind tunnel is an upper rack bottom plate, the bottom of the wind tunnel is a rotor upper end part, a ladder is usually used for entering and exiting the wind tunnel, the top of the ladder is lapped on the upper rack bottom plate, the bottom of the ladder is supported at the rotor upper end part, but the upper end part of the generator rotor is provided with a support arm hole cover plate, so that the surface of the upper end part of the rotor is uneven, the ladder can shake back and forth when the common ladder is used, the ladder is possibly caused to slip, and the safety and the stability are poor.
Disclosure of Invention
The utility model aims to solve the problems that a common ladder shakes back and forth and is easy to slip when entering and exiting a generator wind tunnel, and provides a safe entering and exiting crawling ladder device for the generator wind tunnel.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a generator wind tunnel safety business turn over cat ladder device, includes ladder body, adjustment mechanism and locking mechanical system; the ladder body comprises two ladder beams and a plurality of pedal rods which are arranged in parallel, and two ends of each pedal rod are respectively connected with the two ladder beams; the adjusting mechanism comprises an adjusting screw rod which is in threaded connection with the bottom end of the ladder beam, and the adjusting mechanism is used for enabling two sides of the bottom of the ladder body to contact with the supporting surface; the locking mechanism is arranged on the ladder beam or the pedal rod and comprises an upper locking piece and a lower locking piece, the upper locking piece and the lower locking piece are both connected with the ladder beam or the pedal rod, the upper locking piece or the lower locking piece is detachably connected with a locking rod, and the locking mechanism is used for locking the ladder body at the lap joint position.
When the bottom of the ladder stand device is placed on the rotor support arm hole cover plate in the use process, only one side of the bottom of the ladder stand device is in contact with the rotor support arm hole cover plate due to uneven surface of the upper end part of the rotor, so that the ladder stand device is easy to shake, and the heights of two sides of the bottom of the ladder stand device can be independently adjusted through the adjusting screw in the adjusting mechanism, so that the two sides of the bottom of the ladder stand device are in contact with the supporting surface, and the shake of the ladder stand device caused by the suspension of one side of the bottom of the ladder stand device is avoided; when lapping to upper frame bottom plate edge with cat ladder device top, go up the frame bottom plate card and go up between locking piece and the lower locking piece, reuse detachable locking lever, with last frame bottom plate chucking, realize locking cat ladder device and last frame bottom plate to avoid cat ladder device slippage.
In some embodiments, the upper locking piece or the lower locking piece is provided with a locking nut, the surface of the locking rod is provided with threads, one end of the locking rod is detachably connected with the upper locking piece or the lower locking piece through the locking nut, and the other end of the locking rod is matched with the lower locking piece or the upper locking piece to lock the lap joint position of the ladder body. When the locking rod is installed, the locking ladder body can be locked only by rotating the locking rod, one end of the locking rod is connected with the upper locking piece or the lower locking piece through the locking nut, and the other end of the locking rod is abutted to the lower locking piece or the upper locking piece through the bottom plate of the upper rack.
In some embodiments, the upper and lower locking members are each welded or bolted, preferably welded, to the ladder beam. The welding connection makes the connection between the upper locking piece and the lower locking piece and the ladder beam firmer.
In some embodiments, the adjustment mechanism further comprises a contact block for contacting a support surface, the contact block being connected to the adjustment screw bottom. Through adjusting screw and the contact block of being connected with adjusting screw, rotate adjusting screw can change the height of contact block, make the contact block on two ladder beams all can contact the holding surface, promote cat ladder device stability.
In some embodiments, the contact block bottom is provided with a contact surface. The contact surface is contacted with the supporting surface, so that the bearing is more stable.
In some embodiments, one end of the adjusting screw is provided with a ball head, and the contact block is connected with the adjusting screw through the ball head. When installing the cat ladder device, the angle between cat ladder device and the holding surface is not fixed, in order to make the contact block form the face contact between its contact surface homoenergetic and the holding surface under the different installation angle's of cat ladder device, use the bulb to connect, the contact block change angle of being convenient for.
In some embodiments, the contact block is sleeved with a flexible sleeve for increasing friction. The flexible sleeve is arranged on the contact block, so that the contact surface is contacted with the supporting surface through the flexible sleeve, friction force is increased, and stability of the cat ladder device is improved.
The utility model has the following advantages:
the adjusting mechanism is arranged at the bottom of the ladder beam, so that the heights of the two sides of the bottom of the ladder body can be adjusted independently, the two sides of the bottom of the ladder stand device are contacted with the supporting surface, the ladder stand device is prevented from shaking, and the stability is improved; and through setting up locking mechanical system at the ladder roof beam top, go up the edge card of frame bottom plate and go up between locking piece and the lower locking piece, reuse locking lever locks ladder roof beam top and last frame bottom plate, makes cat ladder device and last frame bottom plate firm the connection, avoids cat ladder device slippage.
Drawings
FIG. 1 is a side view of a generator wind tunnel safety access ladder stand device of the present utility model;
FIG. 2 is a front view of the generator wind tunnel safety access ladder stand device of the present utility model;
in the figure: 1. an upper locking member; 2. a lower locking member; 3. a lock nut; 4. a locking lever; 5. ladder beams; 6. a pedal lever; 7. an adjusting nut; 8. adjusting a screw; 9. a contact block; 10. a flexible sleeve.
Detailed Description
For the purpose of making the technical solution and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.
1-2, a generator wind tunnel safe access ladder stand device comprises a ladder body, an adjusting mechanism and a locking mechanism; the ladder body comprises two ladder beams 5 and a plurality of pedal rods 6 which are arranged in parallel, and two ends of each pedal rod 6 are respectively connected with the two ladder beams 5; the adjusting mechanism comprises an adjusting screw rod 8, the adjusting screw rod 8 is in threaded connection with the bottom end of the ladder beam 5, and the adjusting mechanism is used for enabling two sides of the bottom of the ladder body to contact with the supporting surface; the locking mechanism is arranged on the ladder beam 5 or the pedal rod 6 and comprises an upper locking piece 1 and a lower locking piece 2, the upper locking piece 1 and the lower locking piece 2 are both connected with the ladder beam 5 or the pedal rod 6, the upper locking piece 1 or the lower locking piece 2 is detachably connected with a locking rod 4, and the locking mechanism is used for locking the ladder body at the lap joint position. In the embodiment, an adjusting nut 7 is welded at the bottom end of the ladder beam 5, and an adjusting screw 8 is in threaded connection with the bottom end of the ladder beam 5 through the adjusting nut 7; the locking rod 4 is arranged on the lower locking piece 2, the upper locking piece 1 and the lower locking piece 2 are all metal plates, the upper locking piece 1 and the lower locking piece 2 are arranged in parallel, the upper locking piece 1 and the lower locking piece 2 are all arranged at the top end of the ladder beam 5, and the lower locking piece 2 is positioned below the upper locking piece 1; the upper locking piece 1 and the lower locking piece 2 are arranged on the ladder beams 5, and the two ladder beams 5 are arranged in parallel.
In the use process, in order to enable the cat ladder device to be placed stably and avoid slipping caused by back and forth shaking, the adjusting mechanism is arranged, and the heights of the two sides of the bottom of the cat ladder can be adjusted independently by rotating the adjusting screw rod 8, so that the two sides of the bottom of the cat ladder device are contacted with the supporting surface, and the cat ladder device is prevented from shaking caused by hanging one side of the bottom of the cat ladder device; and set up locking mechanical system, through the clearance between locking mechanical system upper lock 1 and lower lock 2, go up the frame bottom plate edge card with the generating set and go into above-mentioned clearance in, reuse locking lever 4, go up the frame bottom plate butt with the generating set, make the frame bottom plate clamp by locking lever 4 and upper lock 1, go up the frame bottom plate edge locking, and then lock cat ladder device top and last frame bottom plate, avoided cat ladder device slippage that cat ladder device makes a round trip to rock and leads to.
Preferably, the upper locking piece 1 or the lower locking piece 2 is provided with a locking nut 3, the surface of the locking rod 4 is provided with threads, one end of the locking rod 4 is detachably connected with the upper locking piece 1 or the lower locking piece 2 through the locking nut 3, and the other end is matched with the lower locking piece 2 or the upper locking piece 1 to lock the lap joint position of the ladder body. In this embodiment, the locking nut 3 is welded on the lower locking piece 2, the locking rod 4 is in threaded connection with the lower locking piece 2 through the locking nut 3, so that the locking rod 4 is fixed, when in use, the locking rod 4 is rotated, one end of the locking rod 4 is moved through the locking nut 3, the other end of the locking rod 4 is abutted against the upper frame bottom plate, the upper frame bottom plate is clamped by the locking rod 4 and the upper locking piece 1, and the lap joint of the ladder beam 5 and the upper frame bottom plate is connected and locked.
In this embodiment, the upper locking member 1 and the lower locking member 2 are welded to the ladder beam 5, the welded connection increases the strength of the connection between the upper locking member 1 and the lower locking member 2 and the ladder beam 5, and in other embodiments, the upper locking member 1 and the lower locking member 2 may be connected to the ladder beam 5 by bolts.
Preferably, the adjusting mechanism further comprises a contact block 9 for contacting the supporting surface, and the contact block 9 is connected with the bottom of the adjusting screw 8. In the embodiment, the adjusting screw rod 8 is rotated, and the adjusting screw rod 8 drives the contact block 9 to move along the axial direction of the ladder beam 5; because the surface of the upper end part of the rotor is uneven, one of the two ladder beams 5 is possibly suspended, at the moment, the adjusting screw rod 8 on the ladder beam 5 on one suspended side is rotated, and the contact block 9 is moved until the contact block 9 contacts with the upper end part of the rotor, so that the installation of the ladder stand device is more stable.
Preferably, the bottom of the contact block 9 is provided with a contact surface. In the embodiment, the cross section of the contact block 9 is trapezoid, and the surface with the larger bottom is the contact surface; the contact surface is arranged, so that the contact block 9 is in surface contact with the supporting surface, and the surface contact is more stable.
Preferably, a ball head is arranged at the bottom end of the adjusting screw 8, and the contact block 9 is connected with the adjusting screw 8 through the ball head. In this embodiment, a ball seat matched with a ball head is provided on the contact block 9, and a spherical pair is used to connect the contact block 9 and the adjusting screw 8, so that the angle between the contact block 9 and the adjusting screw 8 can be adjusted. When the ladder stand device is installed, the angle between the ladder beam 5 and the supporting surface at the bottom of the ladder beam is uncertain, and the contact block 9 is adapted to different angles by using spherical pairs.
Preferably, the contact block 9 is sleeved with a flexible sleeve 10 for increasing friction force. In this embodiment, the flexible sleeve 10 is a nylon sleeve, and in other embodiments, the flexible sleeve 10 may be a rubber sleeve or the like. The flexible sleeve 10 can increase the friction between the contact block 9 and the supporting surface and improve the stability of the ladder stand device.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present utility model fall within the protection scope of the present utility model.
Claims (6)
1. The utility model provides a generator wind-tunnel safety business turn over cat ladder device which characterized in that includes:
the ladder body comprises two ladder beams (5) and a plurality of pedal rods (6) which are arranged in parallel, wherein two ends of each pedal rod (6) are respectively connected with the two ladder beams (5);
the adjusting mechanism comprises an adjusting screw rod (8), the adjusting screw rod (8) is in threaded connection with the bottom end of the ladder beam (5), and the adjusting mechanism is used for enabling two sides of the bottom of the ladder body to contact with the supporting surface;
the locking mechanism is arranged on the ladder beam (5) or the pedal rod (6) and comprises an upper locking piece (1) and a lower locking piece (2), the upper locking piece (1) and the lower locking piece (2) are connected with the ladder beam (5) or the pedal rod (6), the upper locking piece (1) or the lower locking piece (2) is detachably connected with a locking rod (4), and the locking mechanism is used for locking the ladder body at the lap joint position.
2. The wind tunnel safety access ladder stand device of the generator according to claim 1, wherein a locking nut (3) is arranged on the upper locking piece (1) or the lower locking piece (2), threads are arranged on the surface of the locking rod (4), one end of the locking rod (4) is detachably connected with the upper locking piece (1) or the lower locking piece (2) through the locking nut (3), and the other end of the locking rod is matched with the lower locking piece (2) or the upper locking piece (1) to lock the lap joint position of the ladder body.
3. The wind tunnel safety access ladder stand device of claim 1, wherein the adjusting mechanism further comprises a contact block (9) for contacting a supporting surface, and the contact block (9) is connected with the bottom of the adjusting screw (8).
4. A generator wind tunnel safety access ladder device according to claim 3, characterized in that the bottom of the contact block (9) is provided with a contact surface.
5. A generator wind tunnel safety access ladder stand device according to claim 3, characterized in that the bottom end of the adjusting screw (8) is provided with a ball head, and the contact block (9) is connected with the adjusting screw (8) through the ball head.
6. A generator wind tunnel safety access ladder device according to claim 3, characterized in that the contact block (9) is provided with a flexible sleeve (10) for increasing friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166302.7U CN219733274U (en) | 2023-05-15 | 2023-05-15 | Safe access cat ladder device of generator wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321166302.7U CN219733274U (en) | 2023-05-15 | 2023-05-15 | Safe access cat ladder device of generator wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219733274U true CN219733274U (en) | 2023-09-22 |
Family
ID=88027243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321166302.7U Active CN219733274U (en) | 2023-05-15 | 2023-05-15 | Safe access cat ladder device of generator wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219733274U (en) |
-
2023
- 2023-05-15 CN CN202321166302.7U patent/CN219733274U/en active Active
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| GR01 | Patent grant |