Auxiliary tool for mounting bolts of fan tower drum

Abstract

The utility model relates to an auxiliary tool for fan tower cylinder bolt installation, and belongs to the technical field of fan tower cylinder installation, the auxiliary tool comprises an arc-shaped rail matched with a hydraulic stretcher, the rail is provided with an installation part detachably connected with a tower cylinder, the hydraulic stretcher comprises a shell and a drive plate matched with the shell, and the drive plate is arranged on the shell. A ratchet wheel for driving the driving plate to rotate is arranged in the shell, a pawl matched with the ratchet wheel is arranged on the driving plate, a driving rod for driving the ratchet wheel to rotate is arranged in the shell, and the lower end of the driving rod is located on the outer side of the shell. The rail is provided with a limiting assembly for limiting the hydraulic tensioner and a driving assembly for driving the drive plate to move along with the nut. The device has the effect of reducing the labor intensity of workers.

Description

Technical Field

[0001] This application relates to the technical field of wind turbine tower installation, and in particular to an auxiliary tooling for wind turbine tower bolt installation. Background Technology

[0002] A wind turbine tower is the support structure for wind power generation. It plays a supporting role in wind turbine generator sets and absorbs vibrations from the generator set. It is usually composed of multiple ring-shaped tower sections spliced ​​together. Each tower section has flanges installed on its upper and lower sides. The splicing of each tower section is achieved by fixing two adjacent flanges.

[0003] During installation, the bolts on the lower side of the upper flange of the two adjacent flanges pass through the lower flange. The worker installs the nut on the bolt, puts the hydraulic tensioner on the lower side of the bolt, until the nut is inserted into the dial, and drives the nut to rotate and tighten by using a wrench and the hydraulic tensioner.

[0004] In related technologies, workers hold a hydraulic tensioner and tighten nuts with a wrench. Due to the large weight of the hydraulic tensioner, this may cause high labor intensity for the workers. Utility Model Content

[0005] To reduce the labor intensity of workers, this application provides an auxiliary tooling for installing wind turbine tower bolts.

[0006] The auxiliary tooling for installing wind turbine tower bolts provided in this application adopts the following technical solution:

[0007] An auxiliary tooling for installing wind turbine tower bolts includes an arc-shaped track adapted to a hydraulic tensioner. The track is provided with mounting components detachably connected to the tower. The hydraulic tensioner includes a housing and a corresponding dial. The housing contains a ratchet that drives the dial to rotate. The dial has a pawl that engages with the ratchet. The housing also contains a drive rod that drives the ratchet to rotate, with its lower end located outside the housing. The track includes a limiting component for restricting the hydraulic tensioner and a drive component for driving the dial to move with the nut.

[0008] By adopting the above technical solution, the track is fixed to the inner wall of the tower through the mounting components. At this time, the hydraulic tensioner is installed on the track through the limiting component. When installing the nut, the housing is moved by the drive component, so that the nut is always in the dial. The operator drives the drive rod to drive the ratchet to rotate, which facilitates the rotation of the dial and the nut through the pawl. The dial is connected to the ratchet and the pawl, which makes it easy for the operator to drive the dial to rotate. This reduces the possibility of inconvenience in operation due to the small internal space of the tower. At the same time, it is easy to install the nuts sequentially along the length of the track, reducing the labor intensity of the operator.

[0009] Optionally, the mounting component includes magnet blocks disposed at both ends on one side of the track, and the track is fixed to the tower sidewall by the magnet blocks.

[0010] By adopting the above technical solution, the track is installed on the side wall of the tower by a magnetic block. After the nut corresponding to the track installation position is installed, the track is removed and installed at the next nut to be installed. This facilitates the limiting and guiding of the hydraulic tensioner, reduces the possibility of workers holding the hydraulic tensioner by hand, and reduces the labor intensity of workers.

[0011] Optionally, a mounting rod is fixedly connected to the center of the ratchet shaft, the lower end of the mounting rod is inserted into the drive rod and slidably connected to the drive rod, and a spring is installed between the drive rod and the mounting rod.

[0012] By adopting the above technical solution, the drive rod is slidably connected to the ratchet via the mounting rod, and the mounting rod is fixed to the drive rod via a spring. When the operator drives the drive rod to rotate, the drive rod drives the ratchet to rotate via the mounting rod and the spring, and the drive assembly drives the housing to move the dial with the nut. At this time, the mounting rod and the drive rod are slidably connected, and the spring is stretched. At this time, the lower end of the drive rod is relatively fixed in position with the limiting assembly, reducing the possibility of inconvenience in driving the drive rod to rotate and reducing the labor intensity of the operator.

[0013] Optionally, the limiting component includes a mounting sleeve that is sleeved on the outside of the drive rod and rotatably connected to the drive rod. A limiting ring is sleeved on the outside of the mounting sleeve. A limiting pin is provided between the limiting ring and the mounting sleeve to connect the two. A plug plate is provided on one side of the limiting ring that is inserted into the track and slidably connected to the track along the length direction of the track.

[0014] By adopting the above technical solution, the limiting ring is sleeved on the mounting sleeve on the outside of the drive rod, and the limiting ring and the mounting sleeve are fixed by the limiting pin. At this time, the lower end of the drive rod is located below the limiting ring, which makes it easy to drive the drive rod to rotate the ratchet and install the nut. After the installation is completed, the drive plug plate drives the hydraulic tensioner to move along the length of the track to the next nut installation position, which makes it easier to install the nut and reduces the labor intensity of the workers.

[0015] Optionally, the cross-sectional length of the end of the plug-in plate inserted into the track in its own height direction is greater than the cross-sectional length of the end of the plug-in plate near the limiting ring in its own height direction.

[0016] By adopting the above technical solution, the shape of the plug plate inserted into the track end makes it less likely for the plug plate to fall off the track, thereby improving the stability of the hydraulic tensioner installed on the track.

[0017] Optionally, ball bearings are installed on the sidewalls of the track that contact the end of the plug-in plate away from the limiting ring.

[0018] By adopting the above technical solution, when the drive plate moves the hydraulic tensioner along the track length direction, the drive plate contacts the ball bearings, thereby reducing the friction on the drive plate and making it easier to move the hydraulic tensioner to the next nut installation position, thus reducing the labor intensity of the workers.

[0019] Optionally, the driving assembly includes an abutment ring located on the upper side of the limiting ring, the upper side of the abutment ring contacting the lower end of the housing, and the limiting ring is provided with a driving member for driving the abutment ring to move.

[0020] By adopting the above technical solution, when the nut is driven to rotate by the hydraulic tensioner, the driving component pushes the abutment ring to push the housing and dial to move upward, so that the nut is always inserted in the dial, which facilitates the rotation of the nut and reduces the possibility of the operator driving the hydraulic tensioner to move with the nut, thus reducing the labor intensity of the operator.

[0021] Optionally, the driving component includes a hydraulic cylinder fixedly connected to the lower side of the limiting ring, wherein the telescopic rod of the hydraulic cylinder passes through the limiting ring and is fixedly connected to the abutment ring.

[0022] By adopting the above technical solution, the hydraulic cylinder drives the abutment ring to push the housing and dial to move with the nut, so that the nut is always inserted in the dial, which facilitates the rotation of the nut and reduces the labor intensity of the workers.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] When installing the nut, the drive assembly moves the housing, ensuring that the nut is always in the dial. The operator drives the drive rod to rotate the ratchet, which in turn allows the pawl to rotate the dial and the nut. The dial is connected to the ratchet and the pawl, making it easy for the operator to drive the dial and reduce the possibility of inconvenient operation due to the small internal space of the tower. It also facilitates the sequential installation of nuts along the length of the track, reducing the labor intensity of the operator.

[0025] The track is installed on the side wall of the tower by magnetic blocks. After the nut corresponding to the installation position of the track is installed, the track is removed and installed at the position of the next nut to be installed, which facilitates the limiting and guiding of the hydraulic tensioner and reduces the possibility of workers holding the hydraulic tensioner by hand.

[0026] The drive rod is slidably connected to the ratchet via the mounting rod, and the mounting rod is fixed to the drive rod via a spring. When the operator drives the drive rod to rotate, the drive rod drives the ratchet to rotate via the mounting rod and the spring, and the drive assembly drives the housing to move the dial with the nut. At this time, the mounting rod and the drive rod are slidably connected, and the spring is stretched. At this time, the lower end of the drive rod is relatively fixed in position with the limiting assembly, reducing the possibility of difficulty in driving the drive rod to rotate and reducing the labor intensity of the operator. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the auxiliary tooling for installing wind turbine tower bolts according to an embodiment of this application.

[0028] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the hydraulic tensioner and the limiting component in the embodiments of this application.

[0029] Figure 3 This is a structural diagram illustrating the positional relationship between the track and the limiting component in the embodiments of this application.

[0030] Figure 4 This is a structural diagram illustrating the positional relationship between the driving component and the limiting component in the embodiments of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Hydraulic tensioner; 11. Housing; 12. Dial; 121. Insertion groove; 122. Receiving groove; 123. Retaining ring; 124. Pawl; 13. Ratchet; 131. Mounting rod; 14. Drive rod; 15. Spring; 2. Rail; 21. Magnet block; 22. Sliding groove; 3. Limiting assembly; 31. Mounting sleeve; 32. Limiting ring; 33. Limiting pin; 34. Insertion plate; 4. Drive assembly; 41. Abutment ring; 42. Hydraulic cylinder. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] This application discloses an auxiliary tooling for installing bolts on wind turbine towers. (Refer to...) Figure 1 and Figure 2 The hydraulic tensioner 1 includes a housing 11 and a dial 12 rotatably connected to the upper side inside the housing 11. The upper end of the dial 12 has a slot 121 adapted to a nut, and the lower side of the dial 12 has a vertical receiving slot 122 communicating with the slot 121. A horizontal ratchet 13, coaxial with the dial 12, is located on the lower side inside the housing 11. (Refer to...) Figure 2 and Figure 3 A fixed ring 123 is fixedly connected to the lower end of the dial 12, and a ratchet 13 is located in the fixed ring 123. A pawl 124 adapted to the ratchet 13 is hinged to the inner wall of the fixed ring 123.

[0034] A vertical mounting rod 131 with a square cross-section is fixedly connected to the lower axis of the ratchet 13. The lower end of the mounting rod 131 is located outside the housing 11, and a drive rod 14 is sleeved and slidably connected to the lower end of the mounting rod 131. A spring 15 is provided at the upper end of the drive rod 14 and sleeved on the mounting rod 131. One end of the spring 15 is fixedly connected to the ratchet 13, and the other end is fixedly connected to the end of the drive rod 14.

[0035] Reference Figure 1 and Figure 3 An auxiliary tooling for installing wind turbine tower bolts includes an arc-shaped track 2 adapted to the inner wall of the tower. Both ends of the upper side of the track 2 are equipped with mounting components that are detachably connected to the inner wall of the tower. In this embodiment, the mounting components are configured as magnet blocks 21 fixedly connected to the upper side of the track 2, and the track 2 is fixedly connected to the inner wall of the tower via the magnet blocks 21. The track 2 is equipped with a limiting component 3 that fixes the relative position of the drive rod 14 on the track 2, and a drive assembly 4 on the track 2 that includes a drive housing 11 and a dial 12 that moves upward with the nut.

[0036] The track 2 is installed on the side wall of the tower via the magnet block 21. At this time, the hydraulic tensioner 1 is installed on the track 2 via the limiting component 3. When installing the nut, the drive component 4 drives the housing 11 to move until the nut is inserted into the insertion slot 121 and the corresponding bolt is inserted into the receiving slot 122. The mounting rod 131 is slidably connected to the drive rod 14, and the spring 15 is stretched. The operator drives the drive rod 14 to drive the ratchet 13 to rotate through the mounting rod 131 and the spring 15, thereby driving the dial 12 and the nut to rotate through the pawl 124 and the fixing ring 123. At this time, the drive component 4 drives the housing 11 and the dial 12 to move upward, so that the nut is always in the dial 12 until the nut is tightened.

[0037] At this point, the drive assembly 4 drives the housing 11 and dial 12 to move closer to the drive rod 14 until the spring 15 returns to its original length. The bolt then disengages from the dial 12, and the limiting assembly 3 moves the hydraulic tensioner 1 along the length of the track 2 to the next nut installation location, facilitating the sequential installation of nuts along the length of the track 2. Once the nut corresponding to the installation position on the track 2 is installed, the track 2 is removed and installed at the next nut installation location, thus facilitating the limiting and guiding of the hydraulic tensioner 1 and reducing the possibility of workers manually holding the hydraulic tensioner 1.

[0038] The dial 12 is connected to the ratchet 13 via the pawl 124, making it easy for operators to drive the dial 12 to rotate and reducing the possibility of inconvenience due to the limited internal space of the tower. The drive rod 14 is slidably connected to the ratchet 13 via the mounting rod 131. When the drive assembly 4 drives the housing 11 to move the dial 12 with the nut, the lower end of the drive rod 14 is relatively fixed in position relative to the limiting assembly 3, reducing the possibility of difficulty in driving the drive rod 14 to rotate.

[0039] Reference Figure 2 and Figure 3 The limiting assembly 3 includes a mounting sleeve 31 that is sleeved on the outer side of the upper end of the drive rod 14 and rotatably connected to the drive rod 14. A limiting ring 32 is sleeved on the outer side of the mounting sleeve 31. The limiting ring 32 is provided with two symmetrical and horizontal limiting pins 33. Both limiting pins 33 pass through the limiting ring 32 and are inserted into the mounting sleeve 31, thereby fixing the limiting ring 32 and the mounting sleeve 31. A horizontal insertion plate 34 is fixedly connected to one side of the limiting ring 32. The insertion plate 34 is T-shaped, and the vertical length of the end of the insertion plate 34 away from the limiting ring 32 is greater than the vertical length of the end of the insertion plate 34 near the limiting ring 32.

[0040] A sliding groove 22 is provided on the side of the track 2 away from the inner wall of the tower. This groove runs along the track's length and corresponds to the end of the plug-in plate 34 away from the limiting ring 32. The end of the plug-in plate 34 away from the limiting ring 32 is inserted into the sliding groove 22 and slidably connected to the track 2. The sliding groove 22 contains multiple balls (not shown in the figure) that are installed on the side wall of the track 2 and are evenly distributed along the length of the track 2. The plug-in plate 34 contacts the balls when it slides along the sliding groove 22.

[0041] Reference Figure 1 and Figure 4 The drive assembly 4 includes an abutment ring 41 located above the limiting ring 32 and with an outer diameter smaller than the outer diameter of the housing 11. When the limiting ring 32 is installed on the mounting sleeve 31, the abutment ring 41 abuts against the lower end of the housing 11. When the spring 15 is at its original length, the abutment ring 41 contacts the limiting ring 32. The limiting ring 32 is provided with a drive member that drives the abutment ring 41 to move in the vertical direction. In this embodiment, the drive member is configured as a vertical hydraulic cylinder 42 fixedly connected to the lower side of the limiting ring 32. The telescopic rod of the hydraulic cylinder 42 passes through the limiting ring 32 and is fixedly connected to the lower side of the abutment ring 41.

[0042] The limiting ring 32 is sleeved onto the mounting sleeve 31 on the outside of the drive rod 14, and the limiting ring 32 and the mounting sleeve 31 are fixed by the limiting pin 33. At this time, the lower end of the drive rod 14 is located below the limiting ring 32, which facilitates the drive rod 14 to drive the ratchet 13 to rotate and install the nut. The hydraulic cylinder 42 drives the abutment ring 41 to push the housing 11 and the dial 12 to move with the nut, so that the nut is always inserted in the dial 12, which facilitates the rotation of the nut. After the installation is completed, the drive insertion plate 34 drives the hydraulic tensioner 1 to move along the length of the track 2 to the next nut installation position. The insertion plate 34 contacts the ball, reducing the friction on the insertion plate 34, which facilitates the installation of the nut and reduces the labor intensity of the workers.

[0043] The shape of the plug plate 34 inserted into one end of the track 2 makes it difficult for the plug plate 34 to detach from the track 2, thereby improving the stability of the hydraulic tensioner 1 installed on the track 2.

[0044] The implementation principle of an auxiliary tooling for installing wind turbine tower bolts in this embodiment is as follows: the track 2 is installed on the side wall of the tower, the limiting ring 32 is sleeved on the mounting sleeve 31 outside the drive rod 14 and fixed, the hydraulic cylinder 42 drives the abutment ring 41 to push the housing 11 and the dial 12 to move until the nut is inserted into the insertion groove 121, the operator drives the drive rod 14 to drive the dial 12 and the nut to rotate, at this time the hydraulic cylinder 42 drives the housing 11 and the dial 12 to move upward, so that the nut is always in the dial 12 until the nut is tightened.

[0045] The hydraulic cylinder 42 drives the housing 11 and the dial 12 to reset until the bolt disengages from the dial 12. The drive plug block moves the hydraulic tensioner 1 along the length of the track 2 to the next nut to be installed, so that the nuts can be installed sequentially along the length of the track 2. After the nut corresponding to the installation position of the track 2 is installed, the track 2 is removed and installed at the next nut to be installed, until the nuts on the tower are installed.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary tooling for installing bolts on a wind turbine tower, characterized in that: The device includes an arc-shaped track (2) adapted to the hydraulic tensioner (1), and the track (2) is provided with a mounting component that can be detachably connected to the tower. The hydraulic tensioner (1) includes a housing (11) and a dial (12) adapted to it. The housing (11) is provided with a ratchet (13) that drives the dial (12) to rotate. The dial (12) is provided with a pawl (124) that cooperates with the ratchet (13). The housing (11) is provided with a drive rod (14) that drives the ratchet (13) to rotate. The lower end of the drive rod (14) is located outside the housing (11). The track (2) is provided with a limiting component (3) that limits the hydraulic tensioner (1) and a drive component (4) that drives the dial (12) to move with the nut.

2. The auxiliary tooling for installing wind turbine tower bolts according to claim 1, characterized in that: The mounting component includes magnet blocks (21) at both ends of one side of the track (2), and the track (2) is fixed to the side wall of the tower by the magnet blocks (21).

3. The auxiliary tooling for installing wind turbine tower bolts according to claim 2, characterized in that: A mounting rod (131) is fixedly connected to the center of the ratchet (13). The lower end of the mounting rod (131) is inserted into the drive rod (14) and slidably connected to the drive rod (14). A spring (15) is installed between the drive rod (14) and the mounting rod (131).

4. The auxiliary tooling for installing wind turbine tower bolts according to claim 3, characterized in that: The limiting component (3) includes a mounting sleeve (31) sleeved on the outside of the drive rod (14) and rotatably connected to the drive rod (14). A limiting ring (32) is sleeved on the outside of the mounting sleeve (31). A limiting pin (33) is provided between the limiting ring (32) and the mounting sleeve (31) to connect the two. A plug plate (34) is provided on one side of the limiting ring (32) and inserted into the track (2) and slidably connected to the track (2) along the length direction of the track (2).

5. The auxiliary tooling for installing wind turbine tower bolts according to claim 4, characterized in that: The cross-sectional length of the end of the plug plate (34) inserted into the track (2) in the direction of its own height is greater than the cross-sectional length of the end of the plug plate (34) near the limiting ring (32) in the direction of its own height.

6. The auxiliary tooling for installing wind turbine tower bolts according to claim 5, characterized in that: Ball bearings are installed on the side wall of the track (2) that contacts the end of the plug plate (34) away from the limiting ring (32).

7. The auxiliary tooling for installing wind turbine tower bolts according to claim 6, characterized in that: The drive assembly (4) includes an abutment ring (41) located on the upper side of the limiting ring (32), the upper side of the abutment ring (41) is in contact with the lower end of the housing (11), and the limiting ring (32) is provided with a drive member for driving the abutment ring (41) to move.

8. The auxiliary tooling for installing wind turbine tower bolts according to claim 7, characterized in that: The driving component includes a hydraulic cylinder (42) fixedly connected to the lower side of the limiting ring (32), and the telescopic rod of the hydraulic cylinder (42) passes through the limiting ring (32) and is fixedly connected to the abutment ring (41).

Images