CN221705031U - In-service wind power blade wind speed measurement sensor mounting structure - Google Patents

Abstract

The utility model provides an in-service wind power blade wind speed measurement sensor mounting structure, which relates to the field of wind power generators and comprises a supporting mechanism, a damping mechanism and a protection mechanism, wherein the supporting mechanism comprises a fixed support, an adjusting support and a servo electric cylinder, the damping mechanism comprises a damping bearing box for mounting a wind speed measurement sensor, the damping bearing box comprises a box body and a bearing plate for fixedly mounting the wind speed measurement sensor, the top of the box body is provided with a notch, the four corners of the bottom surface of the bearing plate are symmetrically provided with a first damping mechanism, the middle part of the bottom surface of the bearing plate is provided with a second damping mechanism, the bearing plate, the first damping mechanism and the second damping mechanism are all positioned in the box body, and the region, which is positioned at the notch of the box body, of the bearing plate is provided with the wind speed measurement sensor. The supporting mechanism improves the high-altitude working reliability of the wind speed measuring sensor, can flexibly adjust the position of the wind speed measuring sensor, and can effectively reduce vibration, and the damping effect is greatly improved by matching with the supporting mechanism.

Description

A wind speed measurement sensor installation structure for in-service wind turbine blades

Technical Field

The utility model relates to the field of wind turbines, in particular to an installation structure for a wind speed measuring sensor of an in-service wind turbine blade.

Background Art

Wind turbines are electrical equipment that convert wind energy into mechanical energy and mechanical energy into electrical energy. The basic structure of a wind turbine includes a base foundation, a tower, a nacelle, and an impeller. Currently, wind speed measurement equipment is generally installed above the wind turbine nacelle or on a wind tower erected in a wind farm.

Laser wind radar is a radar used to measure high-altitude wind direction and wind speed. As a new type of mobile wind measurement technology, laser radar wind measurement uses the Doppler frequency shift principle of laser to obtain wind speed and direction information by measuring the frequency change caused by the reflection of light waves in the air and aerosol particles moving in the wind, thereby calculating the vector wind speed and direction data at the corresponding height. In complex terrain areas, the representativeness of wind towers is difficult to meet the requirements of wind resource assessment, and the results obtained by simulating wind tower data alone are very different. Through on-site measurements of laser radar in risk areas, combined with existing measurement results and software simulation comparisons, the authenticity of risk areas will be effectively identified and potential risks will be avoided.

CN 218512640 U discloses a nacelle-type laser wind measuring radar for measuring wind fields at different heights, which includes a nacelle-type laser wind measuring radar body and a carrier plate, a motor, a rotating rod, a connecting seat and other components, so that the measuring direction of the entire nacelle-type laser wind measuring radar detection head changes, thereby measuring wind fields in different horizontal directions. A supporting mechanism is installed at the bottom end of the nacelle-type laser wind measuring radar, which can not only always support the nacelle-type laser wind measuring radar while the motor drives the rotation, but also start the cylinder to push one end of the nacelle-type laser wind measuring radar to rise and fall through the lifting rod, and the other end of the nacelle-type laser wind measuring radar keeps the height unchanged, thereby adjusting the measuring height of the nacelle-type laser wind measuring radar detection head. The current laser wind measuring radar is fixedly arranged on the top of the wind turbine nacelle. Since most wind turbines are installed in places with strong wind, although the above-mentioned prior art can realize the flexible adjustment of the measuring height of the nacelle-type laser wind measuring radar detection head, the stability of the equipment needs to be improved.

Summary of the invention

The technical problem to be solved by the utility model is to provide a wind speed measurement sensor installation structure for in-service wind turbine blades in view of the above-mentioned deficiencies in the prior art, so as to improve the installation stability of the wind measuring equipment and realize the adjustment of the height and horizontal angle of the wind measuring equipment.

In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is an installation structure of a wind speed measurement sensor for an in-service wind turbine blade, comprising:

The supporting mechanism comprises a fixed support and an adjustable support, a plurality of positioning holes are opened in the middle of the fixed support, a plurality of servo electric cylinders are arranged between the fixed support and the adjustable support for driving the adjustable support to adjust the position, the servo electric cylinders are arranged obliquely, and the upper and lower ends of the servo electric cylinders are respectively hinged to the adjustable support and the fixed support through a Hook hinge;

A shock absorbing mechanism, wherein the shock absorbing mechanism comprises a shock absorbing bearing box for mounting the wind speed measurement sensor body, and the bottom of the shock absorbing bearing box is mounted on the adjustment support;

The protection mechanism comprises a semi-ellipsoidal shield fixed on an adjustment support, a shock-absorbing bearing box located inside the shield, and a notch is provided on the shield in a part located in a wind speed measurement direction.

Furthermore, there are six servo electric cylinders, which are arranged circumferentially in three groups.

Furthermore, the adjusting support is circular, the fixed support is hexagonal, and a seismic isolation pad is provided between the shock-absorbing bearing box and the adjusting support.

Furthermore, the shock-absorbing bearing box includes a box body and a bearing plate for fixedly installing the wind speed measurement sensor body, a notch is opened on the top of the box body, a first shock-absorbing mechanism is symmetrically arranged at the four corners of the bottom surface of the bearing plate, and a second shock-absorbing mechanism is arranged in the middle of the bottom surface of the bearing plate, the bearing plate, the first shock-absorbing mechanism, and the second shock-absorbing mechanism are all located in the box body, and the wind speed measurement sensor body is installed in the area of the bearing plate located at the notch of the box body.

Furthermore, the first shock absorbing mechanism includes a sleeve, a guide rod, a first spring, and a lower shock absorbing block. The upper end of the guide rod is fixedly connected to the bottom surface of the bearing plate, and the lower end of the guide rod slides into the sleeve. The sleeve is fixed to the bottom of the box body, and the lower shock absorbing block is located at the bottom of the sleeve. The first spring is sleeved on the guide rod, and the lower end of the first spring contacts the top surface of the sleeve.

Furthermore, the second shock absorbing mechanism includes a scissor rod, a slider, and a second spring. The slider includes an integrally formed sliding portion, a connecting portion, and a hinged portion. The sliding portion is slidably arranged in a sliding groove opened at the bottom of the supporting plate. The hinged portion is rotatably connected to the upper end of the scissor rod. The lower end of the scissor rod is hinged to the bottom of the box body. The second spring is located in the sliding groove. One end of the second spring is in contact with the end of the sliding groove, and the other end is in contact with the sliding portion of the slider.

Furthermore, a plurality of upper shock absorbing blocks are symmetrically arranged between the bearing plate and the top of the box body, and the top surfaces of the upper shock absorbing blocks are fixed on the inner wall of the top of the box body.

Preferably, the wind speed measurement sensor body adopts a cabin-type laser wind measurement radar.

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

1. The supporting mechanism of the installation structure of the wind speed measuring sensor for in-service wind turbine blades of the utility model is a six-degree-of-freedom platform structure, which can not only be used to stably install and support the wind speed measuring sensor and improve the reliability of the wind speed measuring sensor working at high altitude, but also can flexibly adjust the position of the wind speed measuring sensor, so that the wind speed measuring sensor can measure the wind speed, inflow angle and other data at different heights.

2. The shock absorbing mechanism provided in the installation structure of the wind speed measuring sensor for in-service wind turbine blades of the utility model can effectively reduce vibration and improve stability, and cooperates with the supporting mechanism to greatly improve the shock absorbing effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of the installation structure of the wind speed measurement sensor for in-service wind turbine blades of the utility model;

FIG2 is a schematic diagram of the internal structure of the shock-absorbing bearing box in FIG1 ;

FIG3 is a schematic structural diagram of the slider in FIG2 ;

Figure markings: 1-fixed support, 101-positioning hole, 2-adjusting support, 3-servo electric cylinder, 4-seismic isolation pad, 5-shock-absorbing bearing box, 501-box, 502-bearing plate, 503-sleeve, 504-guide rod, 505-first spring, 506-lower shock-absorbing block, 507-upper shock-absorbing block, 508-slide groove, 509-slider, 5091-sliding part, 5092-connecting part, 5093-hinge part, 510-second spring, 511-scissors rod, 6-protective cover, 7-wind speed measurement sensor body.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through preferred embodiments.

As shown in FIGS. 1-3, the present embodiment provides an installation structure for an in-service wind turbine blade wind speed measurement sensor, comprising a supporting mechanism, a shock absorbing mechanism and a protective mechanism; the supporting mechanism comprises a fixed support 1 and an adjustable support 2, a plurality of positioning holes 101 are provided in the middle of the fixed support 1, a plurality of servo electric cylinders 3 for driving the adjustable support 2 to adjust the position are provided between the fixed support 1 and the adjustable support 2, the servo electric cylinders 3 are tiltedly arranged, and the upper and lower ends of the servo electric cylinders 3 are respectively hinged to the adjustable support 2 and the fixed support 1 through Hooke's hinges; the shock absorbing mechanism comprises a shock absorbing bearing box 5 for mounting a wind speed measurement sensor body 7, and the bottom of the shock absorbing bearing box 5 is mounted on the adjustable support 2; the protective mechanism comprises a semi-ellipsoidal shield 6, the shield 6 is fixed on the adjustable support 2, the shock absorbing bearing box 5 is located in the shield 6, and a notch is provided on the shield 6 in the wind speed measurement direction.

The installation structure of the wind speed measuring sensor for the in-service wind turbine blades of this embodiment is installed on the top of the nacelle of the wind turbine generator. The fixed support 1 is fixed to the top of the nacelle by bolts after being aligned and positioned through the positioning hole 101. There are six servo electric cylinders 3, which are arranged circumferentially in three groups. The support mechanism composed of the fixed support 1, the adjustment support 2, and the servo electric cylinder 3 forms a six-degree-of-freedom platform, which can stably support the shock absorbing mechanism and the protective mechanism, and flexibly adjust the position of the shock absorbing mechanism, so that the height and measurement angle of the wind speed measuring sensor body 7 carried on the shock absorbing mechanism can be adjusted at the same time, which is convenient for the wind speed measuring sensor body 7 to measure the wind speed, inflow angle and other data flowing through the blades at different heights, and improve the reliability of the wind speed measuring sensor body 7 working at high altitude.

In this embodiment, the wind speed measurement sensor body 7 adopts a nacelle-type laser wind measurement radar, the adjustment support 2 is circular, the fixed support 1 is hexagonal, and a seismic isolation pad 4 is provided between the shock-absorbing bearing box 5 and the adjustment support 2.

Specifically, the shock-absorbing bearing box 5 includes a box body 501 and a bearing plate 502 for fixing and installing a wind speed measuring sensor. A notch is provided on the top of the box body 501. A first shock-absorbing mechanism is symmetrically arranged at the four corners of the bottom surface of the bearing plate 502. A second shock-absorbing mechanism is arranged in the middle of the bottom surface of the bearing plate 502. The bearing plate 502, the first shock-absorbing mechanism, and the second shock-absorbing mechanism are all located in the box body 501. The wind speed measuring sensor is installed in the area of the bearing plate 502 located at the notch of the box body 501; wherein the first shock-absorbing mechanism includes a sleeve 503, a guide rod 504, a first spring 505, and a lower shock-absorbing block 506 scissor rod. The upper end of the guide rod 504 is fixedly connected to the bottom surface of the bearing plate 502. The guide rod 50 4 The lower end slides into the sleeve 503, the sleeve 503 is fixed to the bottom of the box 501, the lower shock-absorbing block 506 scissor rod is located at the bottom of the sleeve 503, the first spring 505 is sleeved on the guide rod 504, and the lower end of the first spring 505 abuts against the top surface of the sleeve 503; the second shock-absorbing mechanism includes a scissor rod, a slider, and a second spring. The slider includes an integrally formed sliding part, a connecting part, and a hinged part. The sliding part is slidably arranged in a slide groove opened at the bottom of the bearing plate 502, the hinged part is rotatably connected to the upper end of the scissor rod, the lower end of the scissor rod is hinged to the bottom of the box 501, the second spring is located in the slide groove, one end of the second spring abuts against the end of the slide groove, and the other end abuts against the sliding part of the slider. A plurality of upper shock-absorbing blocks are symmetrically arranged between the bearing plate 502 and the top of the box 501, and the top surface of the upper shock-absorbing blocks is fixed to the inner wall of the top of the box 501.

In this embodiment, the vibration can be effectively reduced by providing a shock absorbing mechanism, thereby further improving stability, and the shock absorbing effect is greatly improved in cooperation with the supporting mechanism.

The utility model of the installation structure of the wind speed measuring sensor for in-service wind turbine blades is used to install the wind speed measuring sensor body 7 on the top of the wind turbine nacelle. During installation, the wind speed measuring sensor body 7 is fixed on the bearing plate 502, and then the fixing support 1 is fixed on the top of the wind turbine nacelle through the positioning hole 101 by bolts. After the installation is completed, the height position, horizontal angle, and pitch angle of the wind speed measuring sensor body 7 are adjusted by controlling the servo electric cylinder 3, so that the wind speed measuring sensor body 7 can measure the wind speed, inflow angle and other data flowing through the blades at different heights.

The above description is a preferred embodiment of the present invention, which is used to explain the technical solution of the present invention. Those skilled in the art can also make routine modifications, equivalent substitutions and improvements within the spirit and principles of the present invention.

Claims (7)

1. An in-service wind power blade wind speed measurement sensor mounting structure, which is characterized by comprising:

The support mechanism comprises a fixed support (1) and an adjusting support (2), wherein a plurality of positioning holes (101) are formed in the middle of the fixed support (1), a plurality of servo electric cylinders (3) for driving the adjusting support (2) to adjust the position are arranged between the fixed support (1) and the adjusting support (2), the servo electric cylinders (3) are obliquely arranged, and the upper ends and the lower ends of the servo electric cylinders (3) are respectively hinged with the adjusting support (2) and the fixed support (1) through Hooke hinges;

the damping mechanism comprises a damping bearing box (5) for mounting a wind speed measuring sensor main body (7), and the bottom of the damping bearing box (5) is mounted on the adjusting support (2);

The protection mechanism comprises a semi-ellipsoidal shield, the shield is fixed on the adjusting support (2), the shock absorption bearing box (5) is located in the shield, and a notch is formed in the portion, located in the wind speed measuring direction, of the shield.

2. The in-service wind power blade wind speed measurement sensor mounting structure according to claim 1, wherein: the servo electric cylinders (3) are six and are circumferentially arranged in three groups.

3. The in-service wind power blade wind speed measurement sensor mounting structure according to claim 1, wherein: the adjusting support (2) is round, the fixing support (1) is hexagonal, and a shock insulation pad (4) is arranged between the shock absorption bearing box (5) and the adjusting support (2).

4. The in-service wind power blade wind speed measurement sensor mounting structure according to claim 1, wherein: the damping bearing box (5) comprises a box body (501) and a bearing plate (502) for fixedly mounting a wind speed measuring sensor main body (7), a notch is formed in the top of the box body (501), first damping mechanisms are symmetrically arranged on four corners of the bottom surface of the bearing plate (502), second damping mechanisms are arranged in the middle of the bottom surface of the bearing plate (502), the first damping mechanisms and the second damping mechanisms are all located in the box body (501), and a wind speed measuring sensor is mounted in a region, located at the notch of the box body (501), on the bearing plate (502).

5. The in-service wind power blade wind speed measurement sensor mounting structure according to claim 4, wherein: the first damping mechanism comprises a sleeve (503), a guide rod (504), a first spring (505) and a lower damping block (506), wherein the upper end of the guide rod (504) is fixedly connected with the bottom surface of the bearing plate (502), the lower end of the guide rod (504) slides into the sleeve (503), the sleeve (503) is fixed at the bottom of the box body (501), the lower damping block (506) is positioned at the inner bottom of the sleeve (503), the first spring (505) is sleeved on the guide rod (504), and the lower end of the first spring (505) is abutted against the top surface of the sleeve (503).

6. The in-service wind power blade wind speed measurement sensor mounting structure according to claim 5, wherein: the second damping mechanism comprises a scissor rod, a sliding block and a second spring, wherein the sliding block comprises a sliding part, a connecting part and a hinging part which are integrally formed, the sliding part is arranged in a sliding groove formed in the bottom of a bearing plate (502) in a sliding mode, the hinging part is rotationally connected with the upper end of the scissor rod, the lower end of the scissor rod is hinged with the bottom of a box body (501), the second spring is located in the sliding groove, one end of the second spring is in abutting contact with the end of the sliding groove, and the other end of the second spring is in abutting contact with the sliding part of the sliding block.

7. The in-service wind power blade wind speed measurement sensor mounting structure according to claim 6, wherein: a plurality of upper shock-absorbing blocks are symmetrically arranged between the bearing plate (502) and the top of the box body (501), and the top surfaces of the upper shock-absorbing blocks are fixed on the inner wall of the top of the box body (501).