CN217761190U - Mounting structure of variable-pitch sliding ring of wind generating set - Google Patents

Abstract

The utility model discloses an installation structure of a variable-pitch slip ring of a wind generating set, wherein the variable-pitch slip ring is arranged inside a cabin of the wind generating set, and the installation structure comprises a universal joint and an installation base; a stator outside the variable-pitch sliding ring is connected with a cabin platform or a hydraulic station platform in a wind generating set cabin through a mounting base, and a rotor inside the variable-pitch sliding ring is connected with a low-speed shaft in the wind generating set cabin through a universal joint; the utility model provides a vibration, off-centre, swing etc. that conventional oar sliding ring mounted position and unsettled mounting means lead to becoming oar sliding ring trouble, structural damage, life-span reduction, the problem of maintenance difficulty, make the application environment that becomes the oar sliding ring vibrate adaptability and structural design's requirement greatly reduced promptly, reduced manufacturing requirement and economic loss.

Description

Mounting structure of variable-pitch sliding ring of wind generating set

Technical Field

The utility model belongs to the technical field of the technique of wind generating set change oar sliding ring installation and specifically relates to indicate a wind generating set changes oar sliding ring's mounting structure.

Background

At present, all pitch control slip rings of a wind generating set are installed on a low-speed shaft transmission chain, as shown in figure 1, one mode is that a pitch control slip ring 01 is installed on a tail end cantilever of a low-speed shaft 02 in a cabin, the stress and the vibration of the pitch control slip ring 01 are influenced by the superposition and meshing of various parts of a gear box 03, a generator 04 and the like of the whole transmission chain, so that a mechanical mechanism of the pitch control slip ring 01 is damaged, the pitch control slip ring is installed on the tail end cantilever of the transmission chain, the transmission chain of the wind generating set is long, the concentricity and the deformation of the low-speed shaft transmission chain cannot be guaranteed, and the pitch control slip ring eccentrically swings in the operation process, so that the problems of rapid abrasion, short service life, conduction failure and the like of the pitch control slip ring are finally caused; referring to fig. 2, the other is that the variable-pitch slip ring 001 is installed at the front end of the low-speed shaft 002 in the hub 003, the outer rotor of the variable-pitch slip ring 001 rotates or the pull rod of the variable-pitch slip ring 001 pulls the inner rotor of the variable-pitch slip ring 001 to rotate, the fault rate of the variable-pitch slip ring rotating by the outer rotor is high, and the variable-pitch slip ring is installed in the hub 003 to be unfavorable for maintenance and replacement of the variable-pitch slip ring.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve not enough among the prior art, provide a wind generating set becomes mounting structure of oar sliding ring, become the oar sliding ring and pass through universal joint transmission rotational speed, the mechanical connection and the vibration conduction of sliding ring have broken away from the driving chain to increase relevant shock attenuation measure and install to the installation base on, make the long-term steady operation of electric sliding ring under steady reliable environment.

In order to achieve the above object, the present invention provides a technical solution: a mounting structure of a variable-pitch sliding ring of a wind generating set is arranged inside a cabin of the wind generating set and comprises a universal joint and a mounting base; the stator outside the variable-pitch sliding ring is connected with a cabin platform or a hydraulic station platform in a wind generating set cabin through a mounting base, and the rotor inside the variable-pitch sliding ring is connected with a low-speed shaft in the wind generating set cabin through a universal joint.

Further, a rubber shock pad is arranged between the variable-pitch slip ring and the mounting base.

Furthermore, a rotor cable inside the variable-pitch slip ring penetrates through the PE pipe and then extends into the hollow pipe of the low-speed shaft, and the reliability of the rotor cable is guaranteed.

Compared with the prior art, the utility model, have following advantage and beneficial effect:

the utility model provides a vibration, off-centre, swing etc. that conventional oar sliding ring mounted position and unsettled mounting means lead to becoming oar sliding ring trouble, structural damage, life-span reduction, maintenance difficulty problem, make the application environment that becomes the oar sliding ring vibrate adaptability and structural design's requirement greatly reduced promptly, reduced manufacturing requirement and economic loss.

Drawings

FIG. 1 is a schematic structural diagram of a pitch slip ring installed in a nacelle.

FIG. 2 is a structural schematic diagram of the pitch slip ring installed in the hub.

Fig. 3 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

Referring to fig. 3, in the mounting structure of the variable-pitch slip ring of the wind turbine generator system provided by the embodiment, the variable-pitch slip ring 1 is arranged inside a nacelle of the wind turbine generator system, and the mounting structure includes a universal joint 2 and a mounting base 3;

the wind generating set is characterized in that a gear box 6, a generator 7, a low-speed shaft 5 and a hydraulic station platform 4 are installed inside a cabin of the wind generating set, a stator outside a variable-pitch sliding ring 1 is connected with the cabin platform or the hydraulic station platform 4 inside the cabin of the wind generating set through an installation base 3 and a bolt, a rubber shock pad 10 is arranged between the variable-pitch sliding ring 1 and the installation base 3 and plays a shock absorption role, a rotor inside the variable-pitch sliding ring 1 is connected with the low-speed shaft 5 inside the cabin of the wind generating set through a universal joint 2, the universal joint 2 only transmits rotating speed and does not transmit mechanical force and vibration, the universal joint 2 has a regulation function in all directions, and a rotor cable 8 inside the variable-pitch sliding ring 1 penetrates through a PE pipe 9 and then extends into a hollow pipe of the low-speed shaft 5 to guarantee the reliability of the rotor cable 8.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that all the changes made according to the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims (3)

1. The utility model provides a wind generating set becomes mounting structure of oar sliding ring, it arranges inside the cabin of wind generating set in to become the oar sliding ring, its characterized in that: comprises a universal joint and a mounting base; the stator outside the variable-pitch sliding ring is connected with a cabin platform or a hydraulic station platform in the wind generating set cabin through a mounting base, and the rotor inside the variable-pitch sliding ring is connected with a low-speed shaft in the wind generating set cabin through a universal joint.

2. The mounting structure of the wind generating set variable pitch slip ring according to claim 1, wherein: and a rubber shock pad is arranged between the variable-pitch slip ring and the mounting base.

3. The mounting structure of the wind generating set variable pitch slip ring according to claim 1, wherein: and the rotor cable in the variable-pitch slip ring penetrates through the PE pipe and then extends into the hollow pipe of the low-speed shaft, so that the reliability of the rotor cable is ensured.

Images