CN213775595U - Wind power pitch control system - Google Patents

Abstract

The utility model discloses a the utility model provides a following technical scheme: a wind power variable pitch system comprises a mounting seat, wherein three access doors are arranged on the front side surface of a first seat body, three connecting sleeves are arranged on the mounting seat, bearings are respectively and fixedly arranged on the three connecting sleeves, driving sleeves are respectively arranged on the three bearings, blades are respectively arranged on the three driving sleeves, one ends of the three blades respectively extend into the connecting sleeves and are connected with a driving seat, the rear side of the driving seat is fixedly connected with a driving shaft, the rear end of the driving shaft is connected with a driving device of a wind turbine generator set, and the outer side walls of the three driving sleeves are fixedly connected with access guardrails. Thereby improving the working efficiency.

Description

Wind power pitch control system

Technical Field

The utility model relates to a wind-powered electricity generation technical field, concrete field is a wind-powered electricity generation becomes oar system.

Background

The variable pitch system is one of the core parts of a large-scale wind turbine control system, and plays an important role in safe, stable and efficient operation of the wind turbine. The stable variable pitch control becomes one of the hot spots and difficulties in the research of the control technology of the current large-scale wind generating set, and the variable pitch control technology is simply to change the attack angle of the airflow to the blades by adjusting the pitch angle of the blades so as to control the aerodynamic torque and the aerodynamic power captured by the wind wheel.

The existing wind driven generator has a complicated mounting structure of a variable pitch system, a non-compact structure, a large occupied space and troublesome maintenance, and brings inconvenience to the subsequent maintenance process. Therefore, we propose a wind power pitch system.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind-powered electricity generation becomes oar system to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a wind power variable pitch system comprises a mounting seat, wherein the mounting seat comprises a first seat body and a second seat body which are fixedly connected, the front side surface of the first seat body is provided with three access doors, the mounting seat is provided with three connecting sleeves, bearings are respectively and fixedly arranged on the three connecting sleeves, driving sleeves are respectively arranged on the three bearings, blades are respectively arranged on the three driving sleeves, the three blades respectively penetrate through the driving sleeves and are fixedly connected with the driving sleeves, one ends of the three blades respectively extend into the connecting sleeves and are connected with a transmission seat, the three blades are respectively and rotatably connected with the transmission seat, the rear side of the transmission seat is fixedly connected with a driving shaft, the driving shaft penetrates through the first seat body and is fixedly connected with the first seat body, the front end of the driving shaft penetrates through the transmission seat and is fixedly connected with the rear side surface of the second seat body, the rear end of the driving shaft is connected with a driving device of the wind turbine generator, a driving mechanism is arranged inside the driving sleeve, and the outer side wall of the driving sleeve is fixedly connected with an overhaul guardrail.

Preferably, the three access doors are respectively hinged with the front side face of the first seat body, and two handles are respectively arranged on the outer sides of the front surfaces of the three access doors.

Preferably, the surfaces of the blade, the connecting sleeve and the mounting seat are respectively plated with a zinc layer.

Preferably, the mounting seat is provided with three connecting parts, and the connecting parts are fixedly mounted on the inner side of the connecting sleeve and attached to the inner side wall of the connecting sleeve.

Preferably, welded connection between maintenance guardrail and the drive sleeve, the maintenance guardrail is formed by the welding of a plurality of nonrust steel pipe, the middle part welding of maintenance guardrail has the anchor strut.

Compared with the prior art, the beneficial effects of the utility model are that: a wind power variable pitch system drives a driving shaft to rotate through a driving device, the driving shaft drives a transmission seat to rotate, a mounting seat follows the driving shaft and the transmission seat to rotate, and further realizes that the transmission seat drives three blades to rotate along the axial direction of the driving shaft, simultaneously a driving mechanism can drive the blades to rotate relative to the transmission seat, and simultaneously a driving sleeve rotates relative to a bearing, so that the attack angle of airflow to the blades is changed, further the pneumatic torque and the pneumatic power captured by a wind wheel are controlled, the working efficiency is ensured, the structure is simple, the subsequent overhaul and maintenance are also convenient, the failure rate is low, and an overhaul and maintenance worker can stand on an overhaul guardrail to maintain the driving sleeve, the overhaul and maintenance worker can freely operate in the process, the comfort of the overhaul and maintenance worker in the working process is ensured as much as possible, the working efficiency is further improved, and meanwhile, the device is also provided with an overhaul door, the internal parts of the mounting seat can be maintained by opening the access door, the operation is convenient, the maintenance time is saved, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a front view portion of the present invention;

FIG. 2 is a schematic left-side view of the structure of the present invention;

FIG. 3 is a schematic sectional view of the left side view of the structure of the present invention;

FIG. 4 is an enlarged view of the point A in FIG. 1;

fig. 5 is a schematic view of the overall structure of the present invention.

In the figure: 1-mounting seat, 101-first seat body, 102-second seat body, 2-access door, 3-connecting sleeve, 4-bearing, 5-driving sleeve, 6-paddle, 7-transmission seat, 8-driving shaft, 9-maintenance guardrail, 10-handle and 11-connecting part.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-5, the present invention provides a technical solution: a wind power variable pitch system comprises a mounting seat 1, wherein the mounting seat 1 comprises a first seat body 101 and a second seat body 102, the first seat body 101 and the second seat body 102 are fixedly connected, the first seat body 101 and the second seat body 102 are buckled together to form a hollow interior so as to be used for mounting transmission parts in the subsequent process, three access doors 2 are arranged on the front side surface of the first seat body 101, the access doors 2 are set to be convenient for overhauling and maintaining the internal parts of the mounting seat 1, three connecting sleeves 3 are arranged on the mounting seat 1, the connecting sleeves 3 are fixedly connected with the mounting seat 1, bearings 4 are respectively and fixedly arranged on the three connecting sleeves 3, driving sleeves 5 are respectively arranged on the three bearings 4, the driving sleeves 5 can rotate relative to the bearings 4, blades 6 are respectively arranged on the three driving sleeves 5, and the blades 6 can rotate along with the flow of air flow in the air, the three blades 6 respectively penetrate through the driving sleeve 5 and are fixedly connected with the driving sleeve 5, one ends of the three blades 6 respectively extend into the connecting sleeve 3 and are connected with the transmission seat 7, the three blades 6 are respectively rotatably connected with the transmission seat 7, the blades 6 can rotate in the axial direction of the blades 6 relative to the transmission seat 7, the rotation of the transmission seat 7 can drive the blades 6 to rotate in the radial direction of the blades 6, the rear side of the transmission seat 7 is fixedly connected with the driving shaft 8, the driving shaft 8 penetrates through the first seat body 101 and is fixedly connected with the first seat body 101, the front end of the driving shaft 8 penetrates through the transmission seat 7 and is fixedly connected with the rear side face of the second seat body 102, the rear end of the driving shaft 8 is connected with the driving device of the wind turbine generator, the driving device adopts a conventional driving device in a variable pitch system of the existing wind turbine generator, and drives the driving shaft 8 to rotate, drive shaft 8 drives transmission seat 7 and rotates, and mount pad 1 follows drive shaft 8 and transmission seat 7 and rotates, and then has realized that transmission seat 7 drives three paddle 6 and rotates along the axial of drive shaft 8, the inside of drive sleeve 5 is equipped with actuating mechanism, and actuating mechanism 5 can drive 6 relative transmission seats of paddle 7 and rotate, and 5 relative bearing 4 of drive sleeve rotates simultaneously, and is three the lateral wall fixedly connected with maintenance guardrail 9 of drive sleeve 5, maintenance maintainer can stand and maintain drive sleeve 5 on overhauing guardrail 9, and this in-process maintenance maintainer can operate freely, guarantees the travelling comfort of maintenance maintainer with the working process as far as, and then improves work efficiency.

Particularly, it is three access door 2 is connected with the leading flank of first pedestal 101 is articulated respectively, and is three the front surface outside of access door 2 is equipped with two handles 10 respectively, and setting for of handle 10 makes open more convenient to access door 2, and access door 2's setting for is convenient to overhaul the internals of mount pad 1 moreover and is maintained.

Particularly, the surface of paddle 6, connecting sleeve 3 and mount pad 1 has plated the zinc layer respectively, and the zinc layer can effectual protection part not corroded by rainwater or wind and snow, can play anticorrosive effect to another, and then has increased this device life.

Particularly, have three junction 11 on the mount pad 1, junction 11 fixed mounting just with the inside wall laminating of connecting sleeve 3 in the inboard of connecting sleeve 3, connecting sleeve 3 among this kind of connected mode can be fixed first pedestal 101 and second pedestal 102, guarantees that first pedestal 101 and second pedestal 102 are fixed together, has guaranteed that drive shaft 8 can normally drive mount pad 1 and rotate, has guaranteed the transmission efficiency of drive shaft 8, and the installation moreover is convenient.

Particularly, welded connection between maintenance guardrail 9 and the drive sleeve 5, maintenance guardrail 9 is formed by the nonrust steel pipe welding of a plurality of, the middle part welding of maintenance guardrail 9 has the anchor strut, and maintenance guardrail 9 of this kind of structure is stable high, and is durable moreover, and maintenance maintainer can stand and maintain drive sleeve 5 on maintenance guardrail 9, and this in-process maintenance maintainer can operate freely, guarantees the travelling comfort of maintenance maintainer with the course of the work as far as, and then improves work efficiency.

The working principle is as follows: when the utility model is used, the driving device drives the driving shaft 8 to rotate, the driving shaft 8 drives the transmission seat 7 to rotate, the mounting seat 1 rotates along with the driving shaft 8 and the transmission seat 7, further realizes that the driving seat 7 drives the three blades 6 to rotate along the axial direction of the driving shaft 8, the driving mechanism 5 can drive the blades 6 to rotate relative to the driving seat 7, meanwhile, the driving sleeve 5 rotates relative to the bearing 4, and the overhaul maintainer can stand on the overhaul guardrail 9 to maintain the driving sleeve 5, can freely operate in the process, ensures the comfort of the overhaul maintainer in the working process as much as possible, and then improve work efficiency, this device still is equipped with access door 2 simultaneously, opens access door 2 and can overhaul the internals of mount pad 1 and maintain, and convenient operation has saved the time of overhauing and maintaining, improves work efficiency.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a wind-powered electricity generation becomes oar system, includes mount pad (1), its characterized in that: the mounting seat (1) comprises a first seat body (101) and a second seat body (102), the first seat body (101) and the second seat body (102) are fixedly connected, three access doors (2) are arranged on the front side surface of the first seat body (101), three connecting sleeves (3) are arranged on the mounting seat (1), bearings (4) are respectively and fixedly arranged on the three connecting sleeves (3), driving sleeves (5) are respectively arranged on the three bearings (4), paddles (6) are respectively arranged on the three driving sleeves (5), the three paddles (6) respectively penetrate through the driving sleeves (5) and are fixedly connected with the driving sleeves (5), one ends of the three paddles (6) respectively extend into the connecting sleeves (3) and are connected with transmission seats (7), the three paddles (6) are respectively and rotatably connected with the transmission seats (7), a driving shaft (8) is fixedly connected to the rear side of the transmission seats (7), drive shaft (8) run through first pedestal (101) and with first pedestal (101) fixed connection, the front end of drive shaft (8) run through transmission seat (7) and with the trailing flank fixed connection of second pedestal (102), the rear end of drive shaft (8) is connected with wind turbine generator's drive arrangement, the inside of drive sleeve (5) is equipped with actuating mechanism, and is three the lateral wall fixedly connected with of drive sleeve (5) overhauls guardrail (9).

2. A wind power pitch system according to claim 1, wherein: the three access door (2) are respectively hinged with the front side face of the first seat body (101), and the three access door (2) is respectively provided with two handles (10) on the outer side of the front surface.

3. A wind power pitch system according to claim 1, wherein: the surfaces of the paddle (6), the connecting sleeve (3) and the mounting seat (1) are plated with zinc layers respectively.

4. A wind power pitch system according to claim 1, wherein: the mounting seat (1) is provided with three joints (11), and the joints (11) are fixedly mounted on the inner side of the connecting sleeve (3) and attached to the inner side wall of the connecting sleeve (3).

5. A wind power pitch system according to claim 1, wherein: the maintenance guardrail is characterized in that the maintenance guardrail (9) is connected with the driving sleeve (5) in a welding mode, the maintenance guardrail (9) is formed by welding a plurality of stainless steel tubes, and reinforcing rods are welded in the middle of the maintenance guardrail (9).

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