Replaceable anchor bolt assisted replacement and removal device

Abstract

This application relates to the field of wind power equipment installation and maintenance technology. Specifically, an embodiment discloses a replaceable anchor bolt auxiliary replacement and disassembly device, comprising: a power input device, a gear transmission device, an actuator, and a lifting mechanism. The power input device includes a first motor, a drive shaft, and a first bevel gear. The two ends of the gear transmission device are respectively connected to the actuator and the first bevel gear. The actuator includes an incomplete gear with a hexagonal cavity inside. One side of the incomplete gear has an opening communicating with the hexagonal cavity, and the other side of the incomplete gear is connected to the gear transmission device. This application uses electric drive to achieve efficient and safe disassembly and assembly of anchor bolts and nuts, meeting the requirements for rapid disassembly and assembly of replaceable anchor bolts in engineering sites.

Description

Technical Field

[0001] This application relates to the field of wind power equipment installation and maintenance technology, specifically to a replaceable anchor bolt auxiliary replacement and dismantling device. Background Technology

[0002] During the construction and subsequent operation and maintenance of wind power projects, the anchor bolts of the wind turbine foundation need to be inspected or replaced regularly. Traditional anchor bolt installation and removal mainly rely on manual operation or simple tools with limited functions, which has the following shortcomings: First, the operation efficiency is low, making it difficult to meet the requirements of rapid construction on the project site; second, the torque control is inaccurate, which can easily cause damage to the nuts or the preload force is not up to standard, affecting structural safety; third, there is a lack of dedicated automated equipment for the special structure of replaceable anchor bolts, and the convenience and safety of operation need to be improved. Summary of the Invention

[0003] The purpose of this application is to provide a replaceable anchor bolt auxiliary replacement and installation device to solve the problems of low efficiency, poor accuracy and insufficient safety in the existing anchor bolt installation and removal operations.

[0004] To achieve the above objectives, this application provides a replaceable anchor bolt auxiliary replacement and installation / removal device, comprising: a power input device, a gear transmission device, an actuator, and a lifting mechanism, wherein... The power input device includes a first motor, a drive shaft, and a first bevel gear; The two ends of the gear transmission device are respectively connected to the actuator and the first bevel gear; The actuator includes an incomplete gear with a hexagonal cavity inside. One side of the incomplete gear has an opening that communicates with the hexagonal cavity, and the other side of the incomplete gear is connected to the gear transmission device.

[0005] Optionally, the gear transmission device includes a right-angle steering and primary reduction unit, as well as a secondary reduction and power distribution unit.

[0006] Optionally, the right-angle steering and first-stage reduction unit includes a second bevel gear, which meshes perpendicularly with the first bevel gear.

[0007] Optionally, the pitch circle diameter of the second bevel gear is larger than that of the first bevel gear.

[0008] Optionally, the secondary reduction and power distribution unit includes a first spur gear coaxially connected to the second bevel gear, and a driven gear set meshing with the first spur gear.

[0009] Optionally, the other side of the incomplete gear is rotatably connected to the first spur gear via the driven gear set.

[0010] Optionally, the driven gear set includes a first driven gear, a second driven gear, a third driven gear, and a fourth driven gear. The first and second driven gears both mesh with the first spur gear. The third and fourth driven gears mesh with the first and second driven gears, respectively. The incomplete gear meshes with the third and fourth driven gears. The distance between the meshing points of the third and fourth driven gears and the incomplete gear is greater than the size of the opening.

[0011] Optionally, the pitch circle diameter of the incomplete gear is larger than the pitch circle diameters of the third driven gear and the fourth driven gear.

[0012] Optionally, the system further includes a lifting mechanism, which comprises a slide rail system and a carrier vehicle. The slide rail system includes a linear guide rail, a slider, a drive system, and a mounting plate. The mounting plate is disposed on one side of the carrier vehicle. The linear guide rail is vertically mounted on the mounting plate. The slider is slidably connected to the linear guide rail via a groove. The drive system includes a second motor and a ball screw. The second motor is disposed on the mounting plate. The output shaft of the second motor is connected to the screw of the ball screw. The screw of the ball screw is vertically disposed on the mounting plate and parallel to the linear guide rail. The nut of the ball screw is connected to the slider. The first motor is disposed on the slider.

[0013] Optionally, the hexagonal cavity inside the incomplete gear is coupled to the nut to be disassembled; The drive shaft is connected to the output shaft of the first motor either via a coupling or directly. The drive shaft is fitted with a fixed bracket; The gear set transmission device and the incomplete gear are housed within the U-shaped housing.

[0014] The embodiments of this application have the following advantages: 1. Electric drive is adopted to achieve efficient and safe disassembly and assembly of anchor bolts and nuts, meeting the requirements of engineering sites for quick disassembly and assembly of replaceable anchor bolts.

[0015] 2. Through a two-stage gear reduction and power distribution mechanism (including a first-stage reduction and a second-stage reduction for right-angle steering), the high speed of the motor is converted into a low speed and high torque output, providing sufficient torque for nut loading and unloading, while optimizing the spatial layout of the equipment.

[0016] 3. The actuator adopts an incomplete gear design with an open hexagonal cavity, which facilitates quick coupling with the nut to be disassembled from the side, improving the ease of operation.

[0017] 4. The lifting mechanism can precisely adjust the height of the actuator to adapt to the installation and removal of nuts in different positions. The slide rail system works in conjunction with the transport vehicle to achieve flexible movement and precise positioning of the equipment. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 A three-dimensional structural schematic diagram of a replaceable anchor bolt auxiliary replacement and installation device provided for at least one embodiment of this application; Figure 2 A front view of a replaceable anchor bolt auxiliary replacement and installation device provided for at least one embodiment of this application; Figure 3 A side view of a replaceable anchor bolt auxiliary replacement and removal device provided for at least one embodiment of this application; Figure 4 A bottom view of a replaceable anchor bolt auxiliary replacement and installation device provided for at least one embodiment of this application; Figure 5 A perspective structural diagram of a power input device for a replaceable anchor bolt auxiliary replacement and installation / removal device provided for at least one embodiment of this application; Figure 6 A side view of the power input device for a replaceable anchor bolt assisted replacement and removal device provided in at least one embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 1. First motor; 2. Drive shaft; 3. First bevel gear; 4. Fixed bracket; 5. Incomplete gear; 6. Second bevel gear; 7. First spur gear; 8. Opening; 9. Hexagonal cavity; 10. Nut to be disassembled; 11. First driven gear; 12. Second driven gear; 13. Third driven gear; 14. Fourth driven gear; 15. U-shaped housing; 16. Linear guide rail; 17. Slider; 18. Second motor; 19. Screw; 20. Mounting plate; 21. Transport vehicle. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0024] This application provides a replaceable anchor bolt auxiliary replacement and installation device, mainly used for disassembling and installing replaceable anchor bolts on wind turbine foundations at wind power project construction sites. The device is electrically driven and features precise torque control. (Reference) Figures 1 to 6 ,include: Power input device, gear transmission device, actuator and lifting mechanism.

[0025] The power input device is the power source for the entire equipment, including a first motor 1, a drive shaft 2, and a first bevel gear 3. One end of the drive shaft 2 can be connected to the output shaft of the first motor 1 via a coupling or directly, for introducing the high-speed rotational motion generated by the first motor 1 into the transmission system. In some preferred embodiments, the drive shaft 2 is fitted with a fixed bracket 4, which supports and fixes the drive shaft 2 to ensure its smooth operation.

[0026] The gear transmission unit connects the power input device and the actuator. Its core function is to achieve speed reduction and torque increase, that is, to convert the high-speed, low-torque power provided by the first motor 1 into a low-speed, high-torque output. This gear transmission unit includes a right-angle steering and a first-stage reduction unit, as well as a second-stage reduction and power distribution unit.

[0027] The right-angle steering and first-stage reduction unit are mainly composed of a second bevel gear 6. This second bevel gear 6 meshes perpendicularly with the first bevel gear 3 of the power input device. The first bevel gear 3 is typically mounted on the drive shaft 2 and rotates about a horizontal axis, while the second bevel gear 6 rotates about a vertical axis, thereby changing the power direction by 90 degrees and optimizing the spatial layout of the motor and the final output end. Simultaneously, because the pitch circle diameter of the second bevel gear 6 is larger than that of the first bevel gear 3, this meshing pair achieves first-stage reduction and torque amplification.

[0028] The secondary reduction and power distribution unit includes a first spur gear 7 coaxially connected to the second bevel gear 6, and a driven gear set meshing with the first spur gear 7. Power is transmitted from the second bevel gear 6 to the coaxial first spur gear 7, and then the first spur gear 7 drives the entire driven gear set. In a specific embodiment, the driven gear set includes a first driven gear 11, a second driven gear 12, a third driven gear 13, and a fourth driven gear 14. The first driven gear 11 and the second driven gear 12 both mesh with the first spur gear 7, and the third driven gear 13 and the fourth driven gear 14 mesh with the first driven gear 11 and the second driven gear 12, respectively. The incomplete gear 5 in the actuator meshes with the third driven gear 13 and the fourth driven gear 14. The distance between the meshing points of the third driven gear 13 and the fourth driven gear 14 with the incomplete gear 5 is greater than the size of the opening 8. This ensures that when the incomplete gear 5 rotates, while one of the third driven gear 13 and the fourth driven gear 14 is in the opening 8 position, the other is still meshed with the incomplete gear 5, thus achieving uninterrupted transmission of rotational power. Through this series of gear meshing, power distribution and second-stage reduction and torque amplification are achieved. Specifically, the pitch circle diameter of the incomplete gear 5 is larger than the pitch circle diameters of the third driven gear 13 and the fourth driven gear 14, further increasing the output torque.

[0029] The core of the actuator is an incomplete gear 5. This incomplete gear 5 has a hexagonal cavity 9 inside, for coupling with the nut 10 to be removed or the hexagonal nut to be installed. Specifically, an opening 8 is provided on one side of the incomplete gear 5, which communicates with the hexagonal cavity 9, allowing the actuator to directly engage with the nut already installed on the anchor bolt from the side, without needing to slide it in from the top, greatly facilitating operation in confined spaces. The other side of the incomplete gear 5 (i.e., the side opposite to the side with the opening 8) is connected to the driven gear set in the aforementioned gear transmission device, thereby receiving the torque after reduction and torque amplification. During operation, the torque output from the gear transmission device drives the incomplete gear 5, causing it to rotate. This rotation causes the hexagonal cavity 9 to fully engage with the edges of the nut, driving the nut to rotate, thus achieving the removal or tightening of the nut. In a preferred embodiment, the gear transmission device and the incomplete gear 5 are housed within a U-shaped housing 15 to protect the internal transmission components and integrate the overall structure.

[0030] To accommodate anchor nuts at different heights, the device is also equipped with a lifting mechanism. This lifting mechanism includes a slide rail system and a carrier 21. The slide rail system specifically includes a linear guide rail 16, a slider 17, a drive system, and a mounting plate 20. The mounting plate 20 is fixed to one side of the carrier 21, and the linear guide rail 16 is vertically mounted on the mounting plate 20. The slider 17 is slidably connected to the linear guide rail 16 via a groove on it. The drive system includes a second motor 18 and a ball screw. The second motor 18 is fixed to the upper part of the mounting plate 20, and its output shaft is connected to the screw 19 of the ball screw. The screw 19 of the ball screw is also vertically mounted on the mounting plate 20 and parallel to the linear guide rail 16. The nut of the ball screw is fixedly connected to the slider 17. The first motor 1 and the entire disassembly and assembly execution unit (including the power input device, gear transmission device, and actuator) connected to it are all mounted on the slider 17. When the second motor 18 drives the ball screw 19 to rotate, the nut drives the slider 17 and all the components mounted on it to move up and down in a straight line along the linear guide 16, thereby precisely adjusting the height of the actuator.

[0031] In actual operation, the transport vehicle 21 is first remotely controlled by the controller to move the equipment to the designated working area. Then, the lifting mechanism is activated, and the height of the slider 17 is adjusted so that the opening 8 on the incomplete gear 5 of the actuator is aligned and fitted with the hexagonal nut to be removed. After reaching the designated position, the first motor 1 is started, and the power is transmitted through the transmission shaft 2, the first bevel gear 3, the second bevel gear 6 (to complete right-angle steering and first-stage reduction), the first straight gear 7, and the driven gear set (to complete second-stage reduction and power distribution), finally to the incomplete gear 5, which drives the nut to rotate, causing the hexagonal nut to rotate along the anchor bolt thread to the limit, and the hexagonal nut is rigidly connected to the anchor bolt by welding. The drive motor is then started, and the power is transmitted to the hexagonal nut through the gear transmission device, driving it to rotate the entire anchor bolt until the entire anchor bolt is unscrewed from the blind hole nut of the lower anchor plate. Then, the lifting mechanism is activated to move vertically upward to remove the entire anchor bolt that needs to be replaced. When installing a new anchor bolt, the transport vehicle 21 is first remotely controlled by the controller to move the equipment to the designated working area. Then, align the opening 8 on the incomplete gear 5 of the actuator with the hexagonal nut to be installed and lock it in place. Start the lifting mechanism, adjust the slider 17 to raise the hexagonal nut to be installed to a suitable height, and manually insert the anchor bolt into the hole of the hexagonal nut from the bottom. Start the first motor 1, and the power is transmitted through the transmission shaft 2, the first bevel gear 3, the second bevel gear 6 (to complete right-angle steering and first-stage reduction), the first straight gear 7, and the driven gear set (to complete second-stage reduction and power distribution), and finally to the incomplete gear 5, driving the nut to complete the screwing action until the nut abuts against the root of the large end thread of the anchor bolt. After positioning, the hexagonal nut and anchor bolt assembly are lifted synchronously by the lifting mechanism, and then the transport vehicle 21 is moved by remote control of the controller and the lifting mechanism is lowered vertically to place the newly replaced anchor bolt into the flange mounting hole until the lower thread of the anchor bolt is fitted into the blind hole nut of the lower anchor plate. The first motor 1 is started, and power is transmitted through the drive shaft 2, the first bevel gear 3, the second bevel gear 6 (completing right-angle steering and first-stage reduction), the first spur gear 7, and the driven gear set (completing second-stage reduction and power distribution), finally reaching the incomplete gear 5. This drives the nut to rotate, rotating the hexagonal nut to the upper surface of the lower flange of the lower section of the wind turbine tower, ensuring a tight fit between the hexagonal nut and the lower flange surface. Then, another new hexagonal nut is screwed in, and the frictional resistance between the two hexagonal nuts creates a locking force. This locking torque is greater than the torque required to screw in the new anchor bolt, thus driving the anchor bolt into the bottom blind hole nut, completing the anchor bolt assembly. Because the equipment has an intelligent torque adjustment device, the operator can set the output torque as needed to ensure operational accuracy and safety.

[0032] Note that, unless otherwise explicitly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by alternative features for achieving the same, equivalent, or similar purpose. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features. Where used, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments, the combination of which with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment constitutes yet another embodiment.

[0033] In the implementation of functions and steps, the corresponding functions and steps in the various embodiments may occur in a different order than those shown. For example, two consecutive functions and steps may actually be executed or implemented substantially in parallel, and they may sometimes be executed or implemented in reverse order, depending on the functions involved.

[0034] Although this application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this application fall within the scope of protection claimed in this application.

Claims

1. A replaceable anchor bolt auxiliary replacement and installation / removal device, characterized in that, include: The power input device, gear transmission device, actuator, and lifting mechanism, among which, The power input device includes a first motor, a drive shaft, and a first bevel gear; The two ends of the gear transmission device are respectively connected to the actuator and the first bevel gear; The actuator includes an incomplete gear with a hexagonal cavity inside. One side of the incomplete gear has an opening that communicates with the hexagonal cavity, and the other side of the incomplete gear is connected to the gear transmission device.

2. The replaceable anchor bolt auxiliary replacement and installation device according to claim 1, characterized in that, The gear transmission device includes a right-angle steering and primary reduction unit, as well as a secondary reduction and power distribution unit.

3. The replaceable anchor bolt auxiliary replacement and installation device according to claim 2, characterized in that, The right-angle steering and first-stage reduction unit includes a second bevel gear, which meshes perpendicularly with the first bevel gear.

4. The replaceable anchor bolt auxiliary replacement and installation device according to claim 3, characterized in that, The pitch circle diameter of the second bevel gear is larger than that of the first bevel gear.

5. The replaceable anchor bolt auxiliary replacement and installation device according to claim 2, characterized in that, The secondary reduction and power distribution unit includes a first spur gear coaxially connected to the second bevel gear, and a driven gear set meshing with the first spur gear.

6. The replaceable anchor bolt auxiliary replacement and installation device according to claim 5, characterized in that, The other side of the incomplete gear is rotatably connected to the first spur gear via the driven gear set.

7. The replaceable anchor bolt auxiliary replacement and installation device according to claim 6, characterized in that, The driven gear set includes a first driven gear, a second driven gear, a third driven gear, and a fourth driven gear. The first and second driven gears both mesh with the first spur gear. The third and fourth driven gears mesh with the first and second driven gears, respectively. The incomplete gear meshes with the third and fourth driven gears. The distance between the meshing points of the third and fourth driven gears and the incomplete gear is greater than the size of the opening.

8. The replaceable anchor bolt auxiliary replacement and installation device according to claim 7, characterized in that, The pitch circle diameter of the incomplete gear is larger than the pitch circle diameters of the third driven gear and the fourth driven gear.

9. The replaceable anchor bolt auxiliary replacement and installation device according to claim 1, characterized in that, It also includes a lifting mechanism, which comprises a slide rail system and a transport vehicle. The slide rail system includes a linear guide rail, a slider, a drive system, and a mounting plate. The mounting plate is disposed on one side of the transport vehicle. The linear guide rail is vertically mounted on the mounting plate. The slider is slidably connected to the linear guide rail via a groove. The drive system includes a second motor and a ball screw. The second motor is disposed on the mounting plate. The output shaft of the second motor is connected to the screw of the ball screw. The screw of the ball screw is vertically disposed on the mounting plate and parallel to the linear guide rail. The nut of the ball screw is connected to the slider. The first motor is disposed on the slider.

10. The replaceable anchor bolt auxiliary replacement and installation device according to claim 1, characterized in that, The hexagonal cavity inside the incomplete gear is coupled to the nut to be disassembled; The drive shaft is connected to the output shaft of the first motor either via a coupling or directly. The drive shaft is fitted with a fixed bracket; The gear set transmission device and the incomplete gear are housed within the U-shaped housing.

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