Fan impeller assembly straightener

Abstract

The utility model provides a fan impeller assembly straightener, and particularly relates to the technical field of hoisting of wind generating sets. A fan impeller assembly straightener comprises a bottom plate, the bottom plate comprises two first grooves and a second groove, balancing weights are arranged in the first grooves, pulleys are arranged in the front and the back of the interior of the second groove respectively, and portable lifting points are arranged on the bottom plate and the balancing weights respectively. The device has the advantages that the single blade of the fan can be successfully butted with the hub more efficiently and safely, the bottom plate with the pulley, the detachable counter weight and the control rope are matched with one another, the control rope is wound on the pulley of the bottom plate, the single blade of the fan can be successfully butted with the hub more accurately and conveniently, and the service life of the single blade of the fan is prolonged. The two pulleys can change the direction of the tension, and the applicability to different situations on site is high.

Description

Technical Field

[0001] The invention relates to the technical field of wind generator set hoisting, and is a wind turbine impeller assembly corrector. Background Art

[0002] During the assembly of the fan impeller, the blade hoist is bolted to the main hoisting machinery to stabilize the basic direction of the blade, and a control rope is wrapped around the end of the blade to fine-tune the blade and dock it with the hub. Currently, the adjustment direction and strength of the blade are controlled only by increasing the number of people, which is time-consuming, labor-intensive and high-risk, and is very detrimental to the project progress and personnel safety. In addition, it is often the case that the blade cannot be successfully docked with the hub for a long time due to loose and imprecise control. The longer the assembly time is, the greater the probability of unforeseen severe weather conditions such as gusts, and the higher the assembly risk.

[0003] As fans become larger and larger, the length of blades also becomes longer and longer, and the wind force influence on the fan during the docking process with the hub also increases. The current assembly tools can no longer meet the construction requirements. Therefore, the utility model provides a fan impeller assembly corrector. Utility Model Content

[0004] In order to solve the deficiencies in the prior art, the utility model provides a fan impeller assembly corrector.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A fan impeller assembly corrector comprises a base plate, wherein the base plate comprises a first groove and a second groove, wherein two first grooves are provided, a counterweight block is provided inside the first groove, pulleys are provided at the front and rear of the second groove, and portable hanging points are provided on the base plate and the counterweight block, respectively.

[0007] The bottom plate and the counterweight block are respectively provided with matching bolt holes at the front and rear sides, and the bottom plate and the counterweight block are fixed and disassembled by fixing bolts.

[0008] The material of the counterweight block is iron block, lead block or copper block.

[0009] The counterweight block is a square block, the side length of the counterweight block ranges from 80cm to 120cm, and the height of the counterweight block ranges from 80cm to 100cm.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can successfully dock a single blade of the fan with the hub more efficiently and safely. By using a base plate with a pulley, a detachable counterweight and a control rope to cooperate with each other, and winding the control rope around the base plate pulley, a single blade of the fan can be successfully docked with the hub more accurately and easily. The two pulleys can change the direction of the pulling force, and the utility model has strong applicability to different situations on site.

[0012] 2. Easy to move: Both the base plate and the counterweight are equipped with convenient hanging points and can be disassembled into three parts. The counterweight can be increased or decreased according to the on-site conditions, making movement extremely convenient.

[0013] 3. Low cost and low requirements for assembly environment: This patent is easy to manufacture, has low cost, and does not require a high assembly environment, and can be used in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of the utility model.

[0017] In the figure: 1, bottom plate; 2, first groove; 3, second groove; 4, counterweight; 5, pulley; 6, portable lifting point; 7, bolt hole; 8, fixing bolt. DETAILED DESCRIPTION

[0018] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0019] The standard parts used in the present invention can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, and the specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art. At the same time, in order to clearly express the connection relationship and working principle between the various components, the drawings in the specification are organized and drawn in the form of simple diagrams of the mechanism movement, which will not be described in detail here.

[0020] like Figure 1-2As shown, a fan impeller assembly corrector includes a base plate 1, the base plate 1 includes a first groove 2 and a second groove 3, there are two first grooves 2, a counterweight block 4 is arranged inside the first groove 2, pulleys 5 are arranged at the front and back of the second groove 3, and portable hanging points 6 are respectively arranged on the base plate 1 and the counterweight block 4.

[0021] Furthermore, matching bolt holes 7 are respectively provided on the front and rear sides of the bottom plate 1 and the counterweight block 4 , and the bottom plate 1 and the counterweight block 4 are fixed and disassembled by fixing bolts 8 .

[0022] Furthermore, the counterweight block 4 is made of iron, lead or copper. The use of iron, lead or copper can significantly increase the weight to reduce the impact of wind force on the connection between the fan blades and the hub.

[0023] Furthermore, the counterweight block 4 is a square block, the side length of the counterweight block 4 ranges from 80 cm to 120 cm, and the height of the counterweight block 4 ranges from 80 cm to 100 cm.

[0024] Further describe the working principle and steps of the utility model:

[0025] The fan impeller assembly corrector mainly operates through pulleys and base plates, two detachable counterweights and control ropes. Convenient lifting points are set on the base plate and the counterweights for rope lifting and fixing to keep them stable. There are two bolt holes on the left and right sides of the base plate and the counterweight for fixing.

[0026] Step 1: Before assembling the blades, according to the actual wind speed conditions on site, use an auxiliary crane to place the pulley base plate on both sides of the blade root assembly position in advance and fix the position.

[0027] Step 2: When the blade is close to the hub, use the control rope to wrap around the root of the blade, then pass the end of the control rope through the center pulley of the bottom plate, and wrap the control rope around the bottom plate pulley to control the blade adjustment direction. The impeller adjustment can be controlled by lifting and pulling.

Claims

1. A fan impeller assembly straightener, comprising a base plate (1), characterized in that: The base plate (1) comprises a first groove (2) and a second groove (3), wherein two first grooves (2) are provided, a counterweight block (4) is provided inside the first groove (2), pulleys (5) are provided at the front and rear of the second groove (3), and portable hanging points (6) are provided on the base plate (1) and the counterweight block (4), respectively.

2. A fan impeller assembly straightener according to claim 1, characterized in that: Matching bolt holes (7) are respectively provided on the front and rear sides of the bottom plate (1) and the counterweight block (4); the bottom plate (1) and the counterweight block (4) are fixed and disassembled via fixing bolts (8).

3. A fan impeller assembly straightener according to claim 1, characterized in that: The material of the counterweight block (4) is an iron block, a lead block or a copper block.

4. A fan impeller assembly straightener according to claim 1, characterized in that: The counterweight block (4) is a square block, the side length of the counterweight block (4) ranges from 80 cm to 120 cm, and the height of the counterweight block (4) ranges from 80 cm to 100 cm.

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