CN211313816U

CN211313816U - Automatic opening and closing device for tower drum platform door of wind generating set

Info

Publication number: CN211313816U
Application number: CN201922409508.8U
Authority: CN
Inventors: 王玉才
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-08-21
Anticipated expiration: 2029-12-28

Abstract

The utility model discloses an automatic switching device of wind generating set tower section of thick bamboo platform door, including platform and tower ladder, be equipped with the apron on the platform entry, be equipped with unblock self-lock device on the apron, the upper surface of platform is equipped with the fixing base, the push rod motor is connected to the fixing base, the push rod motor is connected with unblock self-lock device, unblock self-lock device includes the sliding body, the sliding body middle part is equipped with the connector, sliding body upper portion is equipped with the gland, unblock bolt threaded connection is on the gland, unblock bolt outside cup joints unblock pressure spring, the sliding body lower part is equipped with the lower part unblock jack. The utility model has the functions of self-locking and unlocking, and is a special unlocking key; the push rod motor is provided with a maximum travel switch and a minimum travel switch, so that the system can conveniently identify the position state of the device; the device has a fault alarm function; the device has strong universality and applicability, and does not change the material and appearance of the existing cover plate; the device can be operated independently and matched with climbing-free and climbing-assisted equipment, and can also be integrated with the existing climbing-free and climbing-assisted equipment.

Description

Automatic opening and closing device for tower drum platform door of wind generating set

Technical Field

The utility model relates to an automatic switching device of wind generating set tower section of thick bamboo platform door.

Background

The platform cover plate of the tower of the wind generating set is made of Q235B steel, and the cover plate is connected with the platform in a hinge mode. After entering the platform, workers need to leave the tower ladder and stand on the platform to close the cover plate, and each platform needs to be repeatedly opened and closed. In the closing operation process, workers need to hang safety ropes and stand at the edge of the platform inlet to bend down to close the opened platform cover plate, and the operation process is complicated; when part of operators continuously pass through a plurality of platforms, platform cover plates are not closed in an illegal operation, and potential safety hazards of accidental falling of the operators at high altitude and falling of objects at high altitude exist; under the condition that the outer door of the unit tower fails, the cover plate does not have the functions of self-locking, theft prevention and unlocking, and any person can operate the aircraft boarding.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide an automatic switching device of wind generating set tower section of thick bamboo platform door, solve wind generating set work and need the artifical problem of ascending a tower in-process platform apron automatic switching of ascending a tower when maintaining.

In order to solve the technical problem, the utility model provides a technical scheme does: an automatic opening and closing device for a platform door of a tower barrel of a wind generating set comprises a platform and a tower ladder, wherein a platform inlet is formed in the platform, the tower ladder penetrates through the platform inlet, a cover plate is arranged on the platform inlet, an unlocking self-locking device is arranged on the cover plate, a fixed seat is arranged on the upper surface of the platform and used for being fixedly connected with a push rod motor, the push rod motor is connected with the unlocking self-locking device through a connecting body, two-way displacement sensors or photoelectric sensors are arranged on the side wall of the tower ladder, which is located above and below the platform, and a control box is fixedly arranged on the lower; the unlocking self-locking device comprises a sliding body, the sliding body is arranged in a sliding body slide way, the middle of the sliding body is provided with a connecting body, the connecting body is arranged in a connecting body slide way, the upper portion of the sliding body is provided with a gland, an upper unlocking bolt through hole is formed in the gland, the unlocking bolt is in threaded connection with the gland, an unlocking pressure spring is sleeved outside the unlocking bolt, and the lower portion of the sliding body is provided with a lower unlocking jackscrew which penetrates through a lower unlocking bolt hole.

As an improvement, the automatic opening and closing device further comprises an unlocking key for unlocking the self-locking device, handles are arranged at two ends of the unlocking key, a top unlocking key port is arranged above the middle of the unlocking key, and a bottom unlocking key port is arranged below the unlocking key.

As an improvement, the push rod motor is provided with a fault alarm which is connected with a fault lamp of a control box under the tower ladder, and when a fault occurs, the fault lamp on the control box is always on, and the control box gives out warning sound.

Compared with the prior art, the utility model the advantage lie in: the device has self-locking and unlocking functions and is provided with a special unlocking key; the device needs a special tool for dismounting and mounting, and bolts are mounted in a non-national standard way; the control system authorizes operation; the push rod motor is provided with a maximum travel switch and a minimum travel switch, so that the system can conveniently identify the position state of the device; the device has a fault alarm function; the device has strong universality and applicability, and does not change the material and appearance of the existing cover plate; the device can be operated independently and matched with climbing-free and climbing-assisted equipment, and can also be integrated with the existing climbing-free and climbing-assisted equipment.

Drawings

Fig. 1 is the structural schematic diagram of the utility model discloses an automatic switching device of wind generating set tower section of thick bamboo platform door.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a front sectional view of the unlocking and self-locking device.

Fig. 5 is a side sectional view of the unlocking and self-locking device.

Fig. 6 is a front sectional view of the unlocking key.

As shown in the figure: 1. the device comprises a platform, 2, a tower ladder, 3, a cover plate, 4, an unlocking self-locking device, 5, a fixed seat, 6, a push rod motor, 7, a bidirectional displacement sensor or a photoelectric sensor, 8, a control box, 9, a sliding body, 10, a connecting body, 11, a sliding body slideway, 12, a connecting body slideway, 13, a gland, 14, an upper unlocking bolt through hole, 15, an upper unlocking bolt, 16, an unlocking pressure spring, 17, a lower unlocking bolt hole, 18, a lower unlocking jackscrew, 19, a top unlocking key opening, 20, a bottom unlocking key opening, 21 and a handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to the attached drawings, the automatic opening and closing device for the platform door of the tower barrel of the wind generating set comprises a platform 1 and a tower ladder 2, wherein a platform inlet is formed in the platform 1, the tower ladder 2 penetrates through the platform inlet, a cover plate 3 is arranged on the platform inlet, an unlocking self-locking device 4 is arranged on the cover plate 3, a fixed seat 5 is arranged on the upper surface of the platform 1, the fixed seat 5 is used for fixedly connecting a push rod motor 6, the push rod motor 6 is connected with the unlocking self-locking device 4 through a connecting body 10, two-way displacement sensors or photoelectric sensors 7 are arranged on the side wall of the tower ladder 2 above and below the platform 1, and a control box 8 is fixedly arranged on; the unlocking self-locking device 4 comprises a sliding body 9, the sliding body 9 is arranged in a sliding body slide way 11, the middle of the sliding body 9 is provided with a connecting body 10, the connecting body 10 is arranged in a connecting body slide way 12, the upper portion of the sliding body 9 is provided with a gland 13, an upper unlocking bolt through hole 14 is formed in the gland 13, an upper unlocking bolt 15 is in threaded connection with the gland 13, an unlocking pressure spring 16 is sleeved outside the upper unlocking bolt 15, and a lower unlocking jackscrew 18 penetrating through a lower unlocking bolt hole 17 is arranged on the lower portion of the sliding body 9. The automatic opening and closing device also comprises an unlocking key for unlocking the self-locking device 4, wherein handles 21 are arranged at two ends of the unlocking key, a top unlocking key port 19 is arranged above the middle part of the unlocking key, and a bottom unlocking key port 20 is arranged below the unlocking key. The push rod motor 6 is provided with a fault alarm which is connected with a lower control box of the tower ladder 2, a fault lamp on the control box 8 is always on when a fault occurs, and the control box 8 gives out warning sound.

The utility model discloses when concrete implementation, 1 automatic switching device of door of wind generating set tower section of thick bamboo platform comprises power device by power part, unblock self-lock device 4, sensor and control system. The power device provides pulling force and pushing force required by the opening and closing of the cover plate 3 of the platform 1 by a push rod motor 6. One end of the power device is connected with a base of a push rod motor 6 fixed on a steel plate of the platform 1, and the other end of the power device is connected with a specially designed connecting body 10 of the unlocking self-locking device 4. The unlocking self-locking device 4 consists of an internal slide way, a middle sliding body 9, a push rod connecting body 10, a connecting body slide way 12, an unlocking pressure spring 16, an upper unlocking bolt 15 and a lower unlocking jackscrew 18. When the device is used for processing power-free and emergency faults, the push rod connecting body 10 can be unlocked through the upper unlocking bolt 15 or the lower unlocking jackscrew 18, and the push rod connecting body 10 can move freely in the slide way, so that unpowered opening and closing can be realized. After unlocking, the unlocking bolt or the lower unlocking jackscrew 18 needs to be reset manually, the middle sliding body 9 automatically resets under the action of the unlocking pressure spring 16, and the push rod connecting body 10 automatically resets under the setting of a system program after the system is powered on. The upper unlocking bolt 15 and the lower unlocking jackscrew of the unlocking self-locking device 4 are designed into non-national standard threads, and other tools cannot unlock; the upper unlocking key and the lower unlocking key are integrated and specially designed, so that the carrying is convenient; the four sensors are arranged in a single set of equipment, the maximum and minimum line limit switches are arranged in the push rod motor 6, the mechanical bidirectional position switch or the photoelectric switch is arranged on the upper portion of the tower ladder 2, the mechanical bidirectional position switch or the photoelectric switch is arranged on the lower portion of the tower ladder 2, and a user can select and install the mechanical bidirectional position switch or the photoelectric switch according to requirements. The control system can operate independently, is matched with the climbing-free and climbing-assisting equipment, and can also be integrated with the existing climbing-free and climbing-assisting equipment with stronger compatibility. And (3) control strategy: the first step is as follows: and after the system is powered on, starting equipment and performing self-checking on the system. And judging the position of the equipment according to a maximum travel switch (normally closed contact) and a minimum travel switch (normally open contact) in the push rod motor 6. The normal position of the equipment is normally open at the maximum position and the minimum position of the door closing state. If the two switch positions are normal, the equipment performs the action of firstly opening the door and then closing the door once, and resets the unlocking state of the unlocking self-locking device 4 which possibly exists; the second step is that: the password of the system needs to be input after the system is started, the password failure time can be set within 2-12 hours, if the power failure restart needs to be authenticated again, and after the password authentication, an operator can climb; the third step: the equipment action mode takes the tower process as an example: after the upward position of the mechanical bidirectional position-moving switch or the photoelectric switch at the lower part of the tower ladder 2 is triggered, the cover plate 3 door of the platform 1 is opened to more than 90 degrees and flickers green light until the upward position of the mechanical bidirectional position-moving switch or the photoelectric switch at the upper part of the tower ladder 2 is triggered, the cover plate 3 door of the platform 1 is closed and flickers red light. If the mechanical bidirectional position switch or the photoelectric switch which is not connected to the upper part of the tower ladder 2 is triggered within 10-20 (settable) seconds after being opened, the system automatically closes the cover plate 3 door of the platform 1. The tower descending process is opposite, if two mechanical bidirectional position-action switches or photoelectric switches at the upper part of a tower ladder 2 are sequentially triggered within a specified time in the tower descending process, the condition that people exist or climbing-free and climbing-assisting equipment fall is judged, and the opening program of a cover plate 3 door of a platform 1 is not executed; the push rod motor 6 has an overload protection function, when equipment is overloaded due to faults or human factors, the equipment is stopped and reports faults, and a fault lamp of the control box 8 under the tower is normally on to send out warning sound.

The utility model discloses carrying out the technological change on the basis of wind generating set current hardware, not changing material, the outward appearance of current apron 3, only needing to install this device additional, the suitability is stronger. The device can be operated independently, and can also be matched with a climbing aid and a climbing-free device or operated integrally, so that the device has stronger compatibility and universality. The unlocking and self-locking device is in a self-locking state at the closing position of the cover plate 3. And unlocking the device at any position of the upper unlocking bolt or the lower unlocking jackscrew by a specially designed unlocking key. The fixing bolts of the device are all non-national standard inner octagonal or polygonal bolts, and need to be disassembled and assembled by special tools, so that the device can not enter in a normal unlocking mode, and has a certain anti-theft effect. The cooperation of the authentication, the unlocking and the self-locking device of the control system can prevent the boarding operation of unauthorized personnel. The automatic opening and closing function of the cover plate 3 of the platform 1 realizes the closing of local space and reduces the danger in the process of high-altitude operation. The electrical equipment has the functions of overload prevention and fault alarm.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides an automatic switching device of wind generating set tower section of thick bamboo platform door, includes platform and tower ladder, its characterized in that: the platform is provided with a platform inlet, the tower ladder penetrates through the platform inlet, the platform inlet is provided with a cover plate, the cover plate is provided with an unlocking self-locking device, the upper surface of the platform is provided with a fixed seat, the fixed seat is used for fixedly connecting a push rod motor, the push rod motor is connected with the unlocking self-locking device through a connecting body, the side wall of the tower ladder is positioned above and below the platform and is provided with a bidirectional position motion sensor or a photoelectric sensor, and the lower part of the tower ladder is fixedly provided with a control box; the unlocking self-locking device comprises a sliding body, the sliding body is arranged in a sliding body slide way, the middle of the sliding body is provided with a connecting body, the connecting body is arranged in a connecting body slide way, the upper portion of the sliding body is provided with a gland, an upper unlocking bolt through hole is formed in the gland, the unlocking bolt is in threaded connection with the gland, an unlocking pressure spring is sleeved outside the unlocking bolt, and the lower portion of the sliding body is provided with a lower unlocking jackscrew which penetrates through a lower unlocking bolt hole.

2. The automatic opening and closing device for the tower platform door of the wind generating set according to claim 1, characterized in that: the automatic opening and closing device further comprises an unlocking key for unlocking the self-locking device, handles are arranged at two ends of the unlocking key, a top unlocking key port is arranged above the middle of the unlocking key, and a bottom unlocking key port is arranged below the unlocking key.

3. The automatic opening and closing device for the tower platform door of the wind generating set according to claim 1, characterized in that: the push rod motor is provided with a fault alarm which is connected with a fault lamp of the control box under the tower ladder, when a fault occurs, the fault lamp on the control box is always on, and the control box gives out warning sound.