Torque striking auxiliary device for fan tower barrel butt joint installation

Abstract

The utility model relates to a torque striking auxiliary device for fan tower barrel butt joint installation. Comprising an annular guide rail assembly which is installed on the inner wall of a tower shell section and located above a butt joint face, a guide pulley assembly capable of moving in the extending direction of the annular guide rail assembly is movably connected to the annular guide rail assembly, a balancer is detachably installed on the guide pulley assembly, and a torque wrench is installed through the balancer; the guide pulley assembly comprises a pulley seat located on the radial inner side of the annular guide rail assembly, an upper guide wheel and a lower guide wheel are installed on the pulley seat, the upper guide wheel is in rolling connection with the top face of the annular guide rail assembly, and the lower guide wheel is in rolling connection with the bottom face of the annular guide rail assembly. Guide wheel protruding rings are arranged on the peripheral face of the upper guide wheel and the peripheral face of the lower guide wheel and used for limiting and preventing the guide pulley assembly from falling off. According to the utility model, the connector bolt of the tower drum can be efficiently fastened, the operation period is shortened, the working efficiency is improved, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wind power generation facilities, especially relates to a wind turbine tower butt joint installation torque auxiliary device. BACKGROUND

[0002] As a clean and sustainable energy form, wind power generation has been vigorously supported by the state in recent years, which has also promoted the rapid development of domestic wind power.

[0003] The wind turbine mainly consists of a foundation, a tower, a main cabin, a hub and blades, wherein the tower accounts for more than 15% of the total cost of the wind turbine, and is also the most basic guarantee for the safety of the whole machine. With the increase of the single machine power of the wind turbine generator, the height of the tower is also increased, usually several tens of meters to hundreds of meters. The traditional flexible full-steel tower technology of wind power has been difficult to meet the demand of large rigidity and large diameter wind turbine generator tower. In recent years, with the promotion of prefabricated concrete technology in China, the application of prefabricated and assembled concrete tower in the field of wind power generation is increasingly common, which effectively makes up for the low rigidity and small diameter of flexible steel tower. Generally speaking, the concrete tower is divided into multiple sections in the height direction of the tower, and each section is basically composed of 4 or 8 prefabricated concrete pieces which are spliced on site. In the actual working process, the concrete pieces are transported to the site and spliced on the special splicing platform to form a concrete section, and the concrete section is hoisted after splicing. After hoisting to the preset position, the construction personnel need to lock the two tower sections with bolts, and finally weld the gap to realize the connection of the two tower sections, and then hoist the concrete section repeatedly until the installation of the whole concrete tower is completed.

[0004] In the operation process of the above-mentioned butt joint connection of the two towers, high-strength bolts are used, and the bolts need to be operated multiple times, and torque acceptance is also needed. However, the torque wrench is very heavy, and the number of sleeve butt joint bolts is large, so the torque wrench needs to be moved manually multiple times, which is time-consuming and laborious. UTILITY MODEL CONTENTS

[0005] The utility model discloses a wind turbine tower butt joint installation torque auxiliary device with reasonable structure design to solve the technical problems in the prior art. The utility model can efficiently fasten the interface bolts of the tower, shorten the operation cycle, improve the work efficiency and reduce the labor intensity of the workers.

[0006] The utility model discloses a technical scheme adopted for solving the technical problems existing in the prior art is: a kind of fan tower cylinder butt joint installation and twist torque auxiliary device including the annular guide rail assembly located above butt joint surface in the inner wall of tower section, guiding pulley assembly movable along its extension direction is movably connected on annular guide rail assembly, balance is detachably installed on guiding pulley assembly and is installed with torque wrench by balance;Guiding pulley assembly includes the pulley seat located in the radial inner side of annular guide rail assembly, upper guide wheel and lower guide wheel are installed on pulley seat, upper guide wheel is rolling connection with the top surface of annular guide rail assembly, lower guide wheel is rolling connection with the bottom surface of annular guide rail assembly, guide wheel protruding ring is arranged on the outer periphery of upper guide wheel and lower guide wheel, for limiting guiding pulley assembly and preventing falling off.

[0007] The utility model discloses a technical scheme adopted for solving the technical problems existing in the prior art is: a kind of fan tower cylinder butt joint installation and twist torque auxiliary device, the balance of setting suspends torque wrench instead of staff whole process hand-held torque wrench, reduce the labor intensity of staff, by setting movable guiding pulley assembly and balance, balance can be conveniently moved along the extension direction of guiding pulley assembly under the pulling of staff, to drive torque wrench to move, facilitate staff to carry out the torque and test torque force operation of the several interface bolts on the butt joint surface of upper and lower two tower section, staff need not whole process hand-held torque wrench, save time and labor in the operation process, shorten the operation cycle, reduce the labor intensity of staff and improve work efficiency.

[0008] Preferably, the annular guide rail assembly includes a plurality of guide rail section units in arc-shaped structure and arranged in butt joint, a guide rail connecting block is arranged between the two guide rail section units in butt joint, and the guide rail connecting block is connected to the two guide rail section units in butt joint by screws.

[0009] Preferably, the guide rail section unit includes an annular inner guide rail and an annular outer guide rail, a plurality of spacer sleeves are arranged between the annular inner guide rail and the annular outer guide rail, and locking screws are screwed into the spacer sleeves to connect the annular inner guide rail, the annular outer guide rail and the spacer sleeves into one body.

[0010] Preferably, strip-shaped holes are formed in the annular inner guide rail and the annular outer guide rail for passing the locking screws.

[0011] Preferably, two upper guide wheels are arranged, and the two upper guide wheels and the lower guide wheel are arranged in triangular distribution.

[0012] Preferably: two guide wheel convex rings are arranged at the outer end of the upper guide wheel, the upper end surface of the annular outer guide rail is located between the two guide wheel convex rings and is in rolling contact with the outer peripheral surface of the upper guide wheel; the guide wheel convex ring on the lower guide wheel is located on the radially inner side of the annular inner guide rail.

[0013] Preferably: the annular guide rail assembly is fixed at a position 2 meters above the butt joint surface of the two tower section joints. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a perspective structural schematic view of the utility model, front view angle;

[0015] Figure 2 is a perspective structural schematic view of the utility model without the tower section joint, rear view angle;

[0016] Figure 3 is Figure 2 the B area in the enlarged schematic view;

[0017] Figure 4 is Figure 2 the A area in the enlarged schematic view;

[0018] Figure 5 is Figure 2 the C area in the enlarged schematic view.

[0019] In the drawing: 1, interface bolt; 2, tower section joint; 3, annular guide rail assembly; 3-1, guide rail baffle; 3-2, annular inner guide rail; 3-3, guide rail connecting plate; 3-4, annular outer guide rail; 3-5, spacer sleeve; 3-6, guide rail connecting block; 4, guide pulley assembly; 4-1, upper guide wheel; 4-2, pulley seat; 4-3, guide wheel convex ring; 4-4, lower guide wheel; 5, balancer; 6, torque wrench. DETAILED DESCRIPTION

[0020] In order to further understand the invention content, characteristics and effects of the utility model, the following embodiments are described in detail as follows:

[0021] Please refer to Figure 1 and Figure 2 , the fan tower butt joint installation torque auxiliary device of the utility model includes the annular guide rail assembly 3 located above the butt joint surface installed on the inner wall of the tower section joint 2, the guide pulley assembly 4 movable along the extension direction of the annular guide rail assembly 3 is movably connected on the annular guide rail assembly 3, the balancer 5 is detachably installed on the guide pulley assembly 4 and the torque wrench 6 is installed through the balancer 5. The annular guide rail assembly 3 is fixed at a position 2 meters above the butt joint surface of the two tower section joints 2.

[0022] Further refer to Figure 3 , Figure 4 and Figure 5The annular guide rail assembly 3 comprises a plurality of guide rail segment units which are installed in abutment and have an arc shape, a guide rail connecting block 3-6 is arranged between two abutted guide rail segment units, and the guide rail connecting block 3-6 is connected to the two abutted guide rail segment units by screws. The annular guide rail assembly 3 is provided with a gap and a guide rail baffle 3-1 at the end of the gap. In this embodiment, the gap provided on the annular guide rail assembly 3 provides a deformation space for the annular guide rail assembly 3, and also facilitates the installation of a ladder in the tower tube. The ladder can pass through the gap.

[0023] As shown in Figure 3 , the guide rail segment unit comprises an annular inner guide rail 3-2 and an annular outer guide rail 3-4, a plurality of spacers 3-5 are arranged between the annular inner guide rail 3-2 and the annular outer guide rail 3-4, locking screws are screwed into the spacers 3-5 to connect the annular inner guide rail 3-2, the annular outer guide rail 3-4 and the spacers 3-5 into one body, and strip-shaped holes are formed in the annular inner guide rail 3-2 and the annular outer guide rail 3-4 for the locking screws. The guide rail segment unit further comprises a plurality of guide rail connecting plates 3-3 which are fixed to the outside of the annular outer guide rail 3-4 and are used to connect with the inner wall of the tower tube. In this embodiment, the guide rail connecting plates 3-3 can be welded to the inner wall of the tower tube.

[0024] As shown in Figure 3 , the guide pulley assembly 4 comprises a pulley seat 4-2 which is located radially inside the annular guide rail assembly 3, a notch is formed in the lower end of the pulley seat 4-2 for installing a hook, and the balancer 5 is detachably installed by the hook which is passed through the notch in the lower end of the pulley seat 4-2.

[0025] The upper guide wheels 4-1 and the lower guide wheels 4-4 are installed on the pulley seat 4-2. The upper guide wheels 4-1 are provided in two, and the two upper guide wheels 4-1 and the lower guide wheels 4-4 form a triangular distribution. The upper guide wheels 4-1 are in rolling connection with the top surface of the annular guide rail assembly 3, and the lower guide wheels 4-4 are in rolling connection with the bottom surface of the annular guide rail assembly 3. Guide wheel protruding rings 4-3 are arranged on the outer circumferential surfaces of the upper guide wheels 4-1 and the lower guide wheels 4-4, and are used to limit and prevent the guide pulley assembly 4 from falling off. Further, two guide wheel protruding rings 4-3 are arranged at the outer ends of the upper guide wheels 4-1, the upper end surface of the annular outer guide rail 3-4 is located between the two guide wheel protruding rings 4-3 and is in rolling contact with the outer circumferential surface of the upper guide wheels 4-1, and the guide wheel protruding ring 4-3 on the lower guide wheel 4-4 is located radially inside the annular inner guide rail 3-2. By arranging the guide wheel protruding rings 4-3, the guide pulley assembly 4 is limited and prevented from falling off, so that the guide pulley assembly 4 can move along the extension direction of the annular guide rail assembly 3 and will not fall off.

[0026] Working principle:

[0027] In actual working process, the annular guide rail assembly 3 is provided with multiple, multiple annular guide rail assemblies 3 are respectively fixedly installed on the inner wall of each tower section at the position 2 meters away from the lower end face, the torque wrench 6 is installed on the lower end of the balancer 5, the balancer 5 has a telescopic distance of 1.5 meters, the torque wrench 6 is suspended through the balancer 5, the full-time hand holding of the torque wrench 6 by the staff can be replaced, and the labor intensity of the staff is reduced;When the interface bolt 1 needs to be torqued and tested torque force, the staff can operate by hand holding the torque wrench 6;After the operation of the interface bolt 1 at one position is completed, the staff only needs to pull the balancer 5 to pull the guide pulley assembly 4 along the annular guide rail assembly 3, and then pull the torque wrench 6 to the next position to operate the torque and test torque force.

Claims

1. A torque-assisted device for connecting and installing wind turbine towers, characterized in that: The application relates to a torque wrench installation device for a tower, which comprises a ring-shaped guide rail assembly (3) installed on the inner wall of a tower section (2) above the butt joint surface, a guide pulley assembly (4) movably connected on the ring-shaped guide rail assembly (3) and capable of moving along the extension direction of the ring-shaped guide rail assembly (3), a balancer (5) detachably installed on the guide pulley assembly (4), and a torque wrench (6) installed through the balancer (5).

2. The torque assist device for butt joining fan tower sections according to claim 1, wherein: The ring-shaped guide rail assembly (3) comprises a plurality of guide rail section units in arc-shaped structure and installed in butt joint, a guide rail connecting block (3-6) is arranged between the two guide rail section units in butt joint, and the guide rail connecting block (3-6) is connected with the two guide rail section units in butt joint through screws; the ring-shaped guide rail assembly (3) is provided with a notch and a guide rail baffle (3-1) is arranged at the end of the notch.

3. The torque assist device for butt joining fan tower sections according to claim 2, wherein: The guide rail section unit comprises a ring-shaped inner guide rail (3-2) and a ring-shaped outer guide rail (3-4), a plurality of spacer sleeves (3-5) are arranged between the ring-shaped inner guide rail (3-2) and the ring-shaped outer guide rail (3-4), and locking screws are screwed into the spacer sleeves (3-5) to connect the ring-shaped inner guide rail (3-2), the ring-shaped outer guide rail (3-4) and the spacer sleeves (3-5) into an integrated whole; a plurality of guide rail connecting plates (3-3) are fixedly connected outside the ring-shaped outer guide rail (3-4) and used for being connected with the inner wall of the tower.

4. The torque assist device for butt joining fan tower sections according to claim 3, wherein: Strip-shaped holes are formed on the ring-shaped inner guide rail (3-2) and the ring-shaped outer guide rail (3-4) and used for penetrating the locking screws.

5. The torque assist device for butt-joining fan tower sections according to claim 1, wherein: The upper guide wheels (4-1) are provided with two guide wheel protruding rings (4-3), the upper end surface of the ring-shaped outer guide rail (3-4) is located between the two guide wheel protruding rings (4-3) and is in rolling contact with the outer circumferential surface of the upper guide wheel (4-1); the guide wheel protruding rings (4-3) on the lower guide wheel (4-4) are located on the radially inner side of the ring-shaped inner guide rail (3-2).

6. The torque assist device for butt-joining fan tower sections according to claim 3, wherein the The ring-shaped guide rail assembly (3) is fixed at a position 2m above the butt joint surface of two tower sections.

7. The torque assist device for butt-joining fan tower sections according to claim 1, wherein: ​

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