Safety device of draught fan climbing-free device
By installing sensors at the contact position of the crawler-free main unit and the anti-falling slide of the wind turbine set, the start of the crawler-free device is solved, and the high fall risk caused by the separation of the crawler-free device and the anti-falling slide are significantly improved.
Patent Information
- Application Number
- CN202421590084.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-05
AI Technical Summary
During the maintenance of wind turbine units, the sliders of the crawler-free and fall-proof device are separated and cannot be locked in a linkage manner, resulting in high fall risk when people do not hang the sliders of the crawler when using the crawler or the equipment fails, which poses a major safety hazard.
A fan crawler-free safety device is designed, including sensors, controllers and working switches. The sensor is installed in the contact position between the crawler-free host and the anti-falling slider. The sensor senses the proximity position of the anti-falling slider, and controls the controller to turn on the power supply, so that the internal circuit of the crawler-free host is closed, thus ensuring that the operator must hang the anti-falling slider to start the crawler-free.
Through this safety device, the occurrence of fall safety accidents by the operator during operation is significantly reduced, and the safety of the wind turbine unit is improved.
Smart Images
Figure CN223016452U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-altitude operation auxiliary tools, and particularly relates to a safety device for a wind turbine non-climbing device. Background Technique
[0002] The wind turbine tower is an important part of a wind power generation unit. There is a climbing ladder inside the wind power generation unit leading to the nacelle. There are mechanical components such as gears and generators on the nacelle, and maintenance personnel need to perform maintenance on them. The wind turbine non-climbing device and the fall arrester are two commonly used safety devices in the maintenance of wind power generation units and generally need to work together. The non-climbing device is a product in the climbing auxiliary equipment of the wind turbine tower and is flexibly installed on the climbing ladder of the wind turbine tower. The fall arrester is a protection product that can quickly brake and lock a falling object within a limited distance and is usually connected to an operator at one end.
[0003] In the related art, when maintenance personnel of a wind power generation unit enter the top of the wind turbine tower for maintenance operations, they need to take the non-climbing device to move up and down. The operation of the non-climbing device and the slider of the fall arrester for maintenance personnel to get on and off the wind turbine tower is completely separated and cannot be linked and locked. Once the personnel take the non-climbing device and do not hang the slider of the fall arrester according to the regulations, or once a failure or break occurs in the non-climbing device or the non-climbing device steel wire rope, the personnel will face a great risk of falling from a height, resulting in a fatal accident, which is extremely unsafe and leaves a great safety hazard in the non-climbing device. Content of the Utility Model
[0004] The main purpose of the utility model is to propose a safety device for a wind turbine non-climbing device, aiming to solve the problem of how to avoid the occurrence of falling accidents from a height and ensure the safety of the staff.
[0005] To achieve the above object, a safety device for a wind turbine non-climbing device proposed by the utility model includes:
[0006] A climbing ladder, with a guide rail provided on one side of the climbing ladder;
[0007] A non-climbing device main body, which is arranged on the side facing the guide rail and is slidably connected to the climbing ladder. The non-climbing device main body includes a sensor, a controller and a working switch. The sensor is arranged on the side of the non-climbing device main body far from the ground. The controller is arranged inside the non-climbing device main body. The controller is provided with a signal receiving end, and the signal receiving end is electrically connected to the sensor. The controller is connected to a power supply and controls the on-off of the circuit. The working switch is used to control the start and stop of the non-climbing device main body;
[0008] A fall arrester slider, which is slidably connected to the guide rail and is electrically connected to the sensor.
[0009] In one embodiment, the sensor includes a proximity switch, which is electrically connected to the controller and is provided at one end of the host of the climbing-free device facing the anti-falling slider.
[0010] In one embodiment, the sensor further includes a push-type sensor, which emits a signal after being abutted against the host of the climbing-free device through the anti-falling slider, and the push-type sensor is electrically connected to the controller.
[0011] In one embodiment, an unlocking key is provided at one end of the anti-falling slider away from the host of the climbing-free device, and the unlocking key is used to reset the triggered anti-falling slider.
[0012] In one embodiment, the host of the climbing-free device is further provided with at least a pair of handrails, and each handrail is correspondingly arranged on both sides of the host of the climbing-free device.
[0013] In one embodiment, an indicator light is provided on one side of the host of the climbing-free device close to the handrail, and the indicator light is electrically connected to the controller.
[0014] In one embodiment, the host of the climbing-free device is further provided with a bearing part, the bearing part is hinged to the host of the climbing-free device, and the bearing part is provided with anti-slip protrusions.
[0015] In one embodiment, at least a pair of positioning gears are provided on one side of the host of the climbing-free device facing the guide rail, and the positioning gears are slidably connected to the guide rail.
[0016] In one embodiment, the safety device of the fan climbing-free device further includes a driving part, the driving part is connected to the guide rail through a gear and is located on the back side of the host of the climbing-free device, and the driving part is bolted to the climbing ladder.
[0017] In one embodiment, the driving part includes a driving motor, a first gear and a second gear. The first gear is provided below the driving motor, the second gear is fixedly provided on the side of the climbing ladder away from the ground, the driving motor drives the first gear to rotate, the first gear is connected to the second gear through a chain, the host of the climbing-free device is slidably connected to the chain, and the driving motor is electrically connected to the host of the climbing-free device.
[0018] The technical solution of the present utility model can well prevent the occurrence of anti-fall accidents by adding sensors at the contact positions between the host of the climbing-free device and the anti-fall device slider. When an operator rides on the climbing-free device, one end of the operator hangs the anti-fall device slider. At this time, the anti-fall device slider is installed between the guide rail on the climbing ladder and the host of the climbing-free device. The anti-fall device slider will contact the host of the climbing-free device under the action of its own gravity, thereby triggering the sensor. The sensor is used to sense the approaching position of the anti-fall device slider and the host of the climbing-free device. The sensor is triggered to send a control signal and send the control signal to the signal receiving end of the controller. After receiving the signal, the controller conducts the power supply, so that the internal circuit of the host of the climbing-free device is closed. At this time, press the working switch, and the host of the climbing-free device starts to work, ensuring that the operator must hang the anti-fall device slider to start the fan climbing-free device when using the host of the climbing-free device. Due to the presence of the anti-fall device slider and its cooperation with the climbing-free device, the occurrence of falling safety accidents during the operation of the operator is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0020] Figure 1 FIG. is a schematic structural diagram of an embodiment of the safety device of the fan climbing-free device provided by the present utility model;
[0021] Figure 2 FIG. is a schematic structural diagram of the host of the climbing-free device in the safety device of the fan climbing-free device provided by the present utility model;
[0022] Figure 3 FIG. is a schematic structural diagram of the safety device of the fan climbing-free device on the fan tower barrel;
[0023] Figure 4 FIG. is a schematic structural diagram of the driving part in the safety device of the fan climbing-free device provided by the present utility model.
[0024] Explanation of the reference numerals in the drawings:
[0025] 1. Safety device for wind turbine climbing-free device; 11. Climbing ladder; 111. Guide rail; 12. Main body of climbing-free device; 121. Sensor; 1211. Proximity switch; 1212. Press sensor; 122. Controller; 1221. Signal receiving end; 1222. Power supply; 123. Working switch; 124. Handrail; 125. Indicator light; 126. Bearing part; 127. Positioning gear; 13. Anti-falling slider; 131. Unlock key; 14. Driving part; 141. Driving motor; 142. First gear; 143. Second gear; 144. Chain.
[0026] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0028] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0029] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0030] The present utility model proposes a safety device for a wind turbine climbing-free device.
[0031] Please refer to Figure 1 and Figure 3, in an embodiment of the present utility model, the safety device 1 of the wind turbine climbing aid includes a climbing ladder 11, a climbing aid main unit 12 and a fall arrester slider 13. A guide rail 111 is provided on one side of the climbing ladder 11. The climbing aid main unit 12 is arranged on the side facing the guide rail 111 and is slidably connected to the climbing ladder 11. The climbing aid main unit 12 includes a sensor, a controller 122 and a working switch 123. The sensor is arranged on the side of the climbing aid main unit 12 away from the ground, and the controller 122 is arranged inside the climbing aid main unit 12. The controller 122 is provided with a signal receiving end 1221, and the signal receiving end 1221 is electrically connected to the sensor. The controller 122 is connected to a power supply 1222 and controls the on-off of the circuit. The working switch 123 is used to control the start and stop of the climbing aid main unit 12. The fall arrester slider 13 is slidably connected to the guide rail 111, and the fall arrester slider 13 is electrically connected to the sensor.
[0032] In this embodiment, the safety device 1 of the wind turbine climbing aid is used in the maintenance work scenario of the wind turbine tower. The climbing ladder 11 provides a vertical passage for the wind turbine tower. The climbing aid main unit 12 is used inside the wind turbine tower to help personnel perform vertical lifting safely and efficiently. The fall arrester slider 13 is a safety protection device for high-altitude operators and can be quickly braked and locked. The sensor is used to detect the presence of an object without physical contact when the fall arrester slider 13 approaches the sensing surface of the sensor by a certain distance and outputs its state through an electrical signal. Here, the sensor includes but is not limited to a proximity switch 1211 (switch-type sensor), a displacement sensor, etc. The controller 122 is used to monitor the operating state of the climbing aid main unit 12 and receive operation instructions. The working switch 123 is used to control the switching device of the climbing aid main unit 12.
[0033] By adding a sensor at the contact position between the climbing aid main unit 12 and the fall arrester slider 13, the occurrence of fall accidents can be well prevented. When an operator rides on the climbing aid, one end of the operator hangs the fall arrester slider 13. At this time, the fall arrester slider 13 is installed between the guide rail 111 on the climbing ladder 11 and the climbing aid main unit 12. The fall arrester slider 13 will contact the climbing aid main unit 12 under the action of its own gravity, thereby triggering the sensor. The sensor is used to sense the proximity position of the fall arrester slider 13 and the climbing aid main unit 12. The sensor is triggered to send a control signal and send the control signal to the signal receiving end 1221 of the controller 122. After receiving the signal, the controller 122 turns on the power supply 1222, so that the internal circuit of the climbing aid main unit 12 is closed. At this time, press the working switch 123, and the climbing aid main unit 12 starts to work and move up and down, ensuring that the operator must hang the fall arrester slider 13 when using the climbing aid main unit 12 to start the wind turbine climbing aid. Due to the presence of the fall arrester slider 13 and its cooperation with the climbing aid, the occurrence of falling safety accidents during the operation of the operator is greatly reduced.
[0034] In an embodiment of the present utility model, the sensor includes a proximity switch 1211. The proximity switch 1211 is electrically connected to the controller 122 and is disposed at one end of the host 12 of the climbing-free device facing the anti-falling slider 13. The proximity switch 1211 is a switch-type sensor that can accurately detect the position of the anti-falling slider 13. When the anti-falling slider 13 enters the detection range of the proximity switch 1211, the proximity switch 1211 is triggered and emits a signal, which is transmitted to the controller 122. The controller 122 conducts the power supply 1222 according to the received signal, and at this time, the closed loop is conducted. The operator then operates the working switch 123, and the host 12 of the climbing-free device starts to work for lifting and moving. This setting method of the sensor does not require contact detection, which helps to reduce wear and damage, and can also respond quickly and accurately locate, reducing manual intervention.
[0035] In an embodiment of the present utility model, the sensor further includes a push-button sensor 1212. The push-button sensor 1212 emits a signal after being in contact with the host 12 of the climbing-free device through the anti-falling slider 13. The push-button sensor 1212 is electrically connected to the controller 122. The push-button sensor 1212 can detect and respond to the pressure applied to the surface of the sensor. When the anti-falling slider 13 moves downward under its own gravity and contacts the host 12 of the climbing-free device, the push-button sensor 1212 is triggered and emits a signal, which is transmitted to the controller 122. The controller 122 conducts the power supply 1222 according to the received signal, and at this time, the closed loop is conducted. The operator then operates the working switch 123, and the host 12 of the climbing-free device starts to work for lifting operation. This setting method of the sensor can accurately measure and has high sensitivity, quickly respond to pressure changes, and improves the use safety.
[0036] In an embodiment of the present utility model, an unlocking key 131 is provided at one end of the anti-falling slider 13 away from the host 12 of the climbing-free device. The unlocking key 131 is used to reset the anti-falling slider 13 after being triggered. The unlocking key 131 can trigger the unlocking mechanism of the anti-falling slider 13 by manual pressing. In an emergency, the unlocking key 131 allows the anti-falling slider 13 to be safely reset, reduces the equipment downtime, and quickly cuts off the locking mechanism of the anti-falling slider 13.
[0037] In an embodiment of the present utility model, the host 12 of the climbing-free device is further provided with at least a pair of handrails 124, and each handrail 124 is correspondingly disposed on both sides of the host 12 of the climbing-free device. In order to provide a stable support point for the operator, the handrails 124 are disposed on both sides of the host 12 of the climbing-free device. The shape of the handrails 124 can be set as a straight line, a flat plate, etc., which is not limited here. This setting method provides support for the operator standing on the host 12 of the climbing-free device and reduces the risk of the operator falling.
[0038] In an embodiment of the present utility model, an indicator light 125 is provided on one side of the host 12 of the climbing-free device close to the handrail 124, and the indicator light 125 is electrically connected to the controller 122. In order to display the operating state of the host 12 of the climbing-free device, the indicator light 125 is provided. The indicator light 125 is electrically connected to the controller 122 in a wireless manner, receives control signals, and the controller 122 sends signals according to the operating state of the climbing-free device. The indicator light 125 decodes these signals and converts them into optical signals. This setting method enables the operator to understand the effect of the current operation through the color of the indicator light 125.
[0039] In an embodiment of the present utility model, the host 12 of the climbing-free device is further provided with a bearing part 126. The bearing part 126 is hinged to the host 12 of the climbing-free device, and the bearing part 126 is provided with anti-slip protrusions. In order to provide stable support and optimize space utilization, the bearing part 126 is provided to be hinged to the host 12 of the climbing-free device, and anti-slip protrusions are provided. The anti-slip protrusions are used to increase friction. This setting method can increase the friction coefficient of the platform surface and help maintain the stability of personnel and equipment.
[0040] In an embodiment of the present utility model, at least a pair of positioning gears 127 are provided on one side of the host 12 of the climbing-free device facing the guide rail 111, and the positioning gears 127 are slidably connected to the guide rail 111. The cooperation of such positioning gears 127 and the guide rail 111 ensures the stable operation of the climbing-free device on the vertical or inclined guide rail 111 and prevents deviation.
[0041] In an embodiment of the present utility model, the safety device 1 of the fan climbing-free device further includes a driving part 14. The driving part 14 is connected to the guide rail 111 through gears and is located on the back side of the host 12 of the climbing-free device. The driving part 14 is bolted to the climbing ladder 11. In an embodiment of the present utility model, the driving part 14 includes a driving motor 141, a first gear 142, and a second gear 143. The first gear 142 is provided below the driving motor 141, and the second gear 143 is fixedly provided on the side of the climbing ladder 11 away from the ground. The driving motor 141 drives the first gear 142 to rotate, the first gear 142 is connected to the second gear 143 through a chain 144, and the host 12 of the climbing-free device is slidably connected to the chain 144. The driving motor 141 is electrically connected to the host 12 of the climbing-free device. This setting method can achieve efficient and stable power output and precisely control the lifting speed and position of the host 12 of the climbing-free device.
[0042] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.
Claims
1. A wind turbine anti-climbing device (1), characterized in that: The wind turbine anti-climbing device (1) comprises: A ladder (11), wherein a guide rail (111) is provided on one side of the ladder (11); A climbing-free device host (12), the climbing-free device host (12) being arranged on a side facing the guide rail (111) and being slidably connected to the ladder (11), the climbing-free device host (12) comprising a sensor (121), a controller (122) and a working switch (123), the sensor (121) being arranged on a side of the climbing-free device host (12) away from the ground, the controller (122) being arranged inside the climbing-free device host (12), the controller (122) being provided with a signal receiving end (1221), the signal receiving end (1221) being electrically connected to the sensor (121), the controller (122) being connected to a power supply (1222) and controlling the on-off of a circuit, and the working switch (123) being used to control the start and stop of the climbing-free device host (12); A fall arrester slider (13), wherein the fall arrester slider (13) is slidably connected to the guide rail (111), and the fall arrester slider (13) is electrically connected to the sensor (121).
2. The wind turbine anti-climbing device (1) according to claim 1, characterized in that: The sensor (121) comprises a proximity switch (1211), the proximity switch (1211) is electrically connected to the controller (122), and is arranged at one end of the climbing-free device main unit (12) facing the fall arrester slider (13).
3. The wind turbine anti-climbing device (1) according to claim 1, characterized in that: The sensor (121) further comprises a press-type sensor (1212), wherein the press-type sensor (1212) sends a signal after the anti-fall device slider (13) contacts the free-climbing device main unit (12), and the press-type sensor (1212) is electrically connected to the controller (122).
4. The wind turbine anti-climbing device (1) according to any one of claims 1 to 3, characterized in that: An unlocking key (131) is provided at one end of the anti-falling device slider (13) away from the anti-climbing device main unit (12), and the unlocking key (131) is used to reset the anti-falling device slider (13) after being triggered.
5. The wind turbine anti-climbing device (1) according to any one of claims 1 to 3, characterized in that: The climbing-free device main unit (12) is also provided with at least one pair of handrails (124), and each handrail (124) is correspondingly arranged on two sides of the climbing-free device main unit (12).
6. The wind turbine anti-climbing device (1) according to claim 5, characterized in that: An indicator light (125) is provided on the side of the climbing-free device main unit (12) facing the handrail (124), and the indicator light (125) is electrically connected to the controller (122).
7. The wind turbine anti-climbing device (1) according to any one of claims 1 to 3, characterized in that: The anti-climbing device main unit (12) is also provided with a bearing portion (126), the bearing portion (126) is hinged to the anti-climbing device main unit (12), and the bearing portion (126) is provided with an anti-slip protrusion.
8. The wind turbine anti-climbing device (1) according to any one of claims 1 to 3, characterized in that: At least one pair of positioning gears (127) is provided on a side of the anti-climbing device main unit (12) facing the guide rail (111), and the positioning gears (127) are slidably connected to the guide rail (111).
9. The wind turbine anti-climbing device (1) according to any one of claims 1 to 3, characterized in that: The wind turbine anti-climbing device (1) further comprises a driving unit (14), wherein the driving unit (14) is connected to the guide rail (111) via a gear and is located on the back side of the anti-climbing device main unit (12), and the driving unit (14) is bolted to the ladder (11).
10. The wind turbine anti-climbing device (1) according to claim 9, characterized in that: The driving part (14) comprises a driving motor (141), a first gear (142) and a second gear (143); the first gear (142) is arranged below the driving motor (141); the second gear (143) is fixedly arranged on a side of the ladder (11) away from the ground; the driving motor (141) drives the first gear (142) to rotate; the first gear (142) is connected to the second gear (143) via a chain (144); the main unit (12) of the climbing-free device is slidably connected to the chain (144); and the driving motor (141) is electrically connected to the main unit (12) of the climbing-free device.