CN217277424U

CN217277424U - Large-scale wind wheel blade static test multi-azimuth side-pull test device

Info

Publication number: CN217277424U
Application number: CN202220169014.6U
Authority: CN
Inventors: 魏英豪
Original assignee: Baoding Orange Information Technology Co ltd
Current assignee: Baoding Orange Information Technology Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-08-23
Anticipated expiration: 2032-01-21

Abstract

The application provides a diversified side of large-scale wind turbine blade static test draws testing arrangement, which comprises a frame, still including installing the clamping mechanism who is used for assembling the wind turbine blade at the frame top, the distance adjustment subassembly of vertical setting is still installed to the frame lateral wall, distance adjustment subassembly's regulation end swing joint has the formula linkage of cutting, the middle part pin joint sliding connection of the formula linkage of cutting has first U type frame and the second U type frame of crisscross distribution, and first U type frame is connected with the buffer zone parallel with vertical section with second U type frame internal rotation, the lateral wall demountable installation of the vertical section of first U type frame has lower counter weight subassembly, the vertical section lateral wall demountable installation of second U type frame has last counter weight subassembly. This application U type frame that distributed is crisscross realizes the synchronous positioning function of a plurality of side pull load points, is favorable to improving experimental efficiency, simultaneously through the vertical section of U type frame as the stress point, has realized the suitability to not unidimensional blade in the vertical section length allowed range of U type frame.

Description

Large-scale wind wheel blade static test multi-azimuth side-pull test device

Technical Field

The utility model relates to a wind energy conversion system test device field particularly, relates to a diversified side of large-scale wind turbine blade static test draws testing arrangement.

Background

The vane static test is also called vane static test. The method for testing the strength, the rigidity, the stress and the deformation distribution of the wind blade under the action of the static load is an important means for analyzing the strength and the static force of the wind blade.

In the wind power blade test process, a hydraulic device and a crane are mostly adopted to load the blades in the prior art, the crane performs static test by applying upward pulling force to the blades, the loaded load value is easy to change due to the fact that the blades can generate large deformation after being loaded, and the pulling force applied to the blades by the crane is difficult to regulate and control, so that the loaded load value on the blades is difficult to control, the loading precision is reduced, the static test result cannot be guaranteed, the loading process of the crane is more complicated, the crane is difficult to operate, and the test efficiency of the static test is reduced. Although the hydraulic device can accurately control the load value applied to the blade, the hydraulic device has a problem of high cost.

Among the prior art, the utility model patent that patent application number is CN201521034330.9 discloses wind turbine blade static test device relates to wind turbine test device technical field, and its structure includes the support, the one end and the support fixed connection of blade, and the blade is equipped with loading portion, and loading portion is loaded with gravity load. The utility model discloses a set up a plurality of loading portions on the blade to gravity load on the equal loading of loading portion, can carry out the static test of gravity direction to the blade, because the blade can warp and produce the skew behind loading gravity load, through personally submitting the blade for the level slightly to incline, and then can make the blade skew of balanced state to approximate horizontal position, can ensure gravity load perpendicular to blade like this, and then can improve the loading precision, obtain reliable test result. For current hydraulic means loading and crane loading, the utility model discloses a static test device still has test efficiency height, characteristics with low costs, still has following defect: each gravity load point on the blade needs to be independently positioned, so that the experiment time is greatly wasted, the experiment efficiency is not favorably improved, and the adaptability to the blades of different sizes is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: need separate location to each gravity load point on the blade that exists at present, very big wasted the experimental time, be unfavorable for improving experimental efficiency, and the adaptability to the not unidimensional blade is bad.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

a multi-azimuth side pull testing device for a large wind wheel blade static test is used for improving the problems.

The present application is specifically such that:

including frame (10), still including installing the clamping mechanism who is used for assembling the wind wheel blade at the frame top, the distance adjusting part of vertical setting is still installed to the frame lateral wall, distance adjusting part's regulation end swing joint has the formula linkage of cutting, the middle part pin joint sliding connection of the formula linkage of cutting has first U type frame and the second U type frame of crisscross distribution, just first U type frame is connected with the buffering area parallel with vertical section with second U type frame internal rotation, the lateral wall demountable installation of the vertical section of first U type frame has counter weight component down, the vertical section lateral wall demountable installation of second U type frame has last counter weight component.

As the preferred technical scheme of this application, the slider is installed to the middle part pin joint of cutting the formula linkage, the spout with slider sliding fit is all seted up to the horizontal segment of first U type frame and second U type frame.

As the preferred technical scheme of this application, go up the counter weight subassembly including installing the L type frame at the frame lateral wall, just the top of first U type frame and second U type frame is arranged in to the horizontal segment of L type frame, the lateral wall of second U type frame has the last haulage rope that runs through L type frame horizontal segment through the tie ring connection, the one end that goes up the haulage rope and pass L type frame is connected with the balancing weight.

As the preferred technical scheme of this application, lower counter weight subassembly includes and connects the couple in first U type frame lateral wall and the lower balancing weight of hanging in the couple and keeping away from first U type frame one end through the tie ring.

As the preferred technical scheme of this application, apart from the adjusting part including the mounting plate of the vertical setting of rack lateral wall, sliding connection at the screw thread seat of mounting plate lateral wall, fixed connection just arrange the rotation seat and the rotation threaded rod of rotation connection on rotating the seat of screw thread seat below in the mounting plate lateral wall, threaded rod and screw thread seat threaded connection, the formula of cutting connecting rod group links to each other with screw thread seat and rotation seat activity respectively.

As the preferred technical scheme of this application, the buffer zone specifically is the rubber material.

Compared with the prior art, the beneficial effects of the utility model are that:

in the scheme of the application:

1. the synchronous positioning function of a plurality of side pulling load points is realized through the arranged U-shaped frames distributed in a distributed and staggered manner, the improvement of the experimental efficiency is facilitated, and the problems that in the prior art, each gravity load point on the blade needs to be positioned independently, the experimental time is greatly wasted, and the improvement of the experimental efficiency is not facilitated are solved;

2. the vertical section of the U-shaped frame is used as a stress point, the applicability of the blades with different sizes is realized within the allowable range of the length of the vertical section of the U-shaped frame, and the problem of poor adaptability of the blades with different sizes in the prior art is solved.

Drawings

Fig. 1 is one of schematic structural diagrams of a multi-azimuth side-pull testing device for a large wind turbine blade static test provided by the present application;

fig. 2 is a second schematic structural diagram of the multi-azimuth side-pull testing device for the static test of the large wind turbine blade provided by the application;

FIG. 3 is an enlarged schematic structural view of part A in FIG. 2 of the large wind turbine blade static test multi-azimuth side pull test device provided by the present application;

FIG. 4 is the main structure diagram of looking at of the multi-azimuth side pull test device of large-scale wind turbine blade static test that this application provided.

The figures are marked by:

10. a frame; 20. a clamping mechanism; 30. a distance adjustment assembly; 310. assembling a plate; 320. a threaded seat; 330. a rotating seat; 340. a threaded rod; 40. a scissor linkage; 50. a first U-shaped frame; 60. a second U-shaped frame; 70. a buffer zone; 80. a lower counterweight assembly; 810. hooking; 820. a lower balancing weight; 90. an upper counterweight assembly; 910. an L-shaped frame; 920. an upper hauling rope; 930. and (4) an upper balancing weight.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.

Thus, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, or the directions or positional relationships that the skilled person usually understands, and these terms are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, this embodiment provides a large-scale wind turbine blade static test multi-azimuth side-pull test device, which includes a frame 10, and further includes a clamping mechanism 20 installed at the top of the frame 10 and used for assembling wind turbine blades, a vertically arranged distance adjusting component 30 is further installed on the side wall of the frame 10, an adjusting end of the distance adjusting component 30 is movably connected with a scissor linkage 40, a middle hinge point of the scissor linkage 40 is slidably connected with a first U-shaped frame 50 and a second U-shaped frame 60 which are distributed in a staggered manner, and a buffer belt 70 which is parallel to a vertical section is rotatably connected between the first U-shaped frame 50 and the second U-shaped frame 60, a lower counterweight component 80 is detachably installed on the outer side wall of the vertical section of the first U-shaped frame 50, and an upper counterweight component 90 is detachably installed on the outer side wall of the vertical section of the second U-shaped frame 60.

Referring to fig. 2, 3 and 4, a sliding block 410 is installed at a hinge point in the middle of the scissor type linkage 40, and sliding grooves in sliding fit with the sliding block 410 are formed at horizontal sections of the first U-shaped frame 50 and the second U-shaped frame 60.

Referring to fig. 1, 2 and 4, the upper weight assembly 90 includes an L-shaped frame 910 mounted on an outer side wall of the frame 10, a horizontal section of the L-shaped frame 910 is disposed above the first U-shaped frame 50 and the second U-shaped frame 60, an upper pulling rope 920 penetrating through the horizontal section of the L-shaped frame 910 is connected to an outer side wall of the second U-shaped frame 60 through a tying ring, and an upper weight block 930 is connected to an end of the upper pulling rope 920 penetrating through the L-shaped frame 910.

Referring to fig. 1, 2 and 4, the lower weight assembly 80 includes a hook 810 connected to an outer side wall of the first U-shaped frame 50 by a tie ring, and a lower weight 820 hung at an end of the hook 810 remote from the first U-shaped frame 50.

Referring to fig. 3, the distance adjustment assembly 30 includes a vertically disposed assembly plate 310 installed on the outer sidewall of the rack 10, a threaded seat 320 slidably connected to the outer sidewall of the assembly plate 310, a rotating seat 330 fixedly connected to the outer sidewall of the assembly plate 310 and disposed below the threaded seat 320, and a threaded rod 340 rotatably connected to the rotating seat 330, wherein the threaded rod 340 is in threaded connection with the threaded seat 320, and the scissor link assembly 40 is movably connected to the threaded seat 320 and the rotating seat 330, respectively.

The buffer zone 70 is specifically made of rubber, and protects the surface of the blade in the experimental process.

Specifically, this diversified side of large-scale wind turbine blade static test draws test device when during operation/use: firstly, the threaded rod 340 is rotated to drive the threaded seat 330 to slide towards a direction far away from the rotating seat 320, so that the dispersing function of the scissor type connecting rod group 50 is realized, further, the dispersing function of the first U-shaped frame 50 and the second U-shaped frame 60 is realized, meanwhile, the blades are placed in the first U-shaped frame 50 and the second U-shaped frame 60 and are in contact with the buffer belt 70, then the blades are clamped through the clamping mechanism 20, then the upper balancing weight 930 is hung on the outer wall of the first U-shaped frame 50 through the upper traction rope 920, the lower balancing weight 820 is hung on the outer wall of the second U-shaped frame 60 through the hook 810 to complete the side-pulling experiment device, and the detection function is realized by replacing the upper balancing weight 930 and the lower balancing weight 820 with different weights.

The above embodiments are only used to illustrate the present invention and not to limit the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement may be made to the present invention; all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention are intended to be covered by the scope of the claims of the present invention.

Claims

1. A multi-azimuth lateral pull test device for a large wind wheel blade static test comprises a frame (10), it is characterized by also comprising a clamping mechanism (20) which is arranged at the top of the frame (10) and is used for assembling the wind wheel blade, the side wall of the frame (10) is also provided with a vertically arranged distance adjusting component (30), the adjusting end of the distance adjusting component (30) is movably connected with a scissor type connecting rod group (40), the middle hinged point of the scissor type connecting rod group (40) is connected with a first U-shaped frame (50) and a second U-shaped frame (60) which are distributed in a staggered way in a sliding way, and the first U-shaped frame (50) and the second U-shaped frame (60) are rotationally connected with a buffer belt (70) parallel to the vertical section, the outer side wall of the vertical section of the first U-shaped frame (50) is detachably provided with a lower counterweight component (80), the outer side wall of the vertical section of the second U-shaped frame (60) is detachably provided with an upper counterweight component (90).

2. The large wind turbine blade static test multi-azimuth side-pull test device according to claim 1, wherein a sliding block (410) is installed at a middle hinge point of the scissor linkage (40), and sliding grooves in sliding fit with the sliding block (410) are formed in horizontal sections of the first U-shaped frame (50) and the second U-shaped frame (60).

3. The large wind turbine blade static test multi-azimuth side-pulling test device according to claim 1, wherein the upper weight assembly (90) comprises an L-shaped frame (910) installed on the outer side wall of the frame (10), the horizontal section of the L-shaped frame (910) is arranged above the first U-shaped frame (50) and the second U-shaped frame (60), the outer side wall of the second U-shaped frame (60) is connected with an upper pulling rope (920) penetrating through the horizontal section of the L-shaped frame (910) through a tying ring, and one end of the upper pulling rope (920) penetrating through the L-shaped frame (910) is connected with an upper balancing weight (930).

4. A large wind turbine blade static test multi-azimuth side pull test device according to claim 3, wherein the lower weight component (80) comprises a hook (810) connected to the outer side wall of the first U-shaped frame (50) through a tie ring and a lower weight block (820) hung at one end of the hook (810) far away from the first U-shaped frame (50).

5. The large wind turbine blade static test multi-azimuth side-pulling test device according to claim 1, wherein the distance adjusting assembly (30) comprises a vertically arranged assembly plate (310) installed on the outer side wall of the frame (10), a threaded seat (320) slidably connected to the outer side wall of the assembly plate (310), a rotating seat (330) fixedly connected to the outer side wall of the assembly plate (310) and arranged below the threaded seat (320), and a threaded rod (340) rotatably connected to the rotating seat (330), the threaded rod (340) is in threaded connection with the threaded seat (320), and the shear type connecting rod set (40) is movably connected with the threaded seat (320) and the rotating seat (330) respectively.

6. A large wind turbine blade static test multi-azimuth side-pull test device according to any one of claims 1-5, characterized in that the buffer belt (70) is made of rubber.