CN2528138Y - Automatic cable-disconnecting device for small wind-driven generator - Google Patents

Abstract

The utility model relates to an automatic cable-releasing device of small wind generator, in which the twisting off of cables due to too large shaft rotational angle along with the changes of wind direction can be avoided. The automatic cable-releasing device of small wind generator of the utility model comprises a riser and a generator installed on the upper end of the riser. The cable is connected to the generator through the riser, which is characterized in that the riser is provided with a steering shaft through a bearing, and the generator is installed and fixed on the upper end of the steering shaft. The cable passing through the steering shaft is connected to the generator. The steering shaft is jacketed with a torsion spring in which one end is fixed and connected on the wall of the riser, and the other end is connected and fixed on the steering shaft. The technical scheme is simple in structure with low production costs. Therefore, the phenomenon of the twisting off of cables can be effectively avoided.

Description

Automatic uncable device for small wind turbine

                    

The utility model relates to an automatic uncable device for a small wind power generator. It can avoid twisting and breaking the cable due to the excessive rotation angle of the rotating shaft due to the change of wind direction.

                        

Small wind turbines have been widely used due to their excellent characteristics in many aspects. Nowadays, the performance, speed regulating mechanism and key technologies of various parts of small generators have been perfected day by day, but there is no mature technology in the aspect of automatic untwisting. In the natural environment, because the direction of the wind often changes, in order to make full use of the wind energy, the wind rotor of the wind turbine is usually designed to automatically adjust the windward direction, and if there is no automatic untwisting device, the cumulative wind generated by the frequent rotation of the wind turbine Excessive rotation angles may twist and break the cable. The automatic untwisting technology used in large wind turbines is not suitable for low-cost small wind turbines due to its complex structure and high cost.

Contents of the invention

The purpose of the utility model is to provide a small-sized wind power generator automatic uncable device with simple structure and low production cost.

In order to achieve the above object, the utility model adopts the following technical solutions:

The automatic uncable device for a small wind power generator described in the utility model includes a standpipe and a generator installed on the upper end of the standpipe, and the cable passes through the standpipe to connect with the generator. It is characterized in that a steering shaft is installed in the standpipe through a bearing , the generator is fixedly installed on the upper end of the steering shaft, the cable passes through the steering shaft to connect with the generator, the steering shaft is covered with a torsion spring, one end of the torsion spring is fixedly connected to the wall of the standpipe, and the other end is fixedly connected to the steering shaft .

In order to facilitate production and installation, a standpipe fixing ring is fixedly installed on the inner wall of the standpipe, and a steering shaft fixing ring is fixedly installed on the steering shaft. One end of the torsion spring is fixedly connected to the standpipe fixing ring, and the other end is fixedly connected to the steering shaft fixing ring. superior.

The technical scheme has simple structure and low production cost, and can effectively avoid the phenomenon that the cable is broken.

Description of drawings

Accompanying drawing is a partial sectional view of an embodiment of the present utility model.

Specific embodiments

As shown in the accompanying drawings, the automatic uncable device for small wind power generators described in the utility model includes a standpipe 1, a generator 2 installed on the upper end of the standpipe 1, a steering shaft 4 is installed in the standpipe 1 through a bearing, and the generator 2 is fixedly installed on the upper end of the steering shaft 4, the cable 3 passes through the steering shaft 4 and is connected to the generator 2, the steering shaft 4 is covered with a torsion spring 5, the inner wall of the standpipe 1 is fixedly installed with a standpipe fixing ring 6, the steering shaft 4 A steering shaft fixing ring 7 is fixedly installed on the top, and one end of the torsion spring 5 is fixedly connected on the standpipe fixing ring 6 , and the other end is fixedly connected on the steering shaft fixing ring 7 .

Of course, as another embodiment of the present utility model, the tube fixing ring 6 and the steering shaft fixing ring 7 may not be set up, but one end of the torsion spring 5 is directly fixedly connected to the tube wall of the standpipe 1, and the other end is directly fixedly connected on steering axis 4.

When the wind direction changes, the steering shaft 4 may deflect against the elastic force of the torsion spring. In the case of a small deflection angle (can be designed within 360 degrees), the steering shaft 4 is in a state of equilibrium with any situation and can face the wind arbitrarily; And once the cumulative steering angle is too large (for example, exceeding 360 degrees), although the steering shaft can rotate, once the wind force disappears or weakens, the steering shaft will return to avoid excessive steering angle and twist the cable.

Claims (2)

1, automatic cable-releasing equipment for small wind power generator, comprise standpipe (1), be installed in the generator (2) of standpipe (1) upper end, cable (3) passes standpipe (1) and is connected with generator (2), it is characterized in that: by Bearing Installation steering spindle (4) is arranged in the standpipe (1), generator (2) is fixedly mounted on the upper end of steering spindle (4), cable (3) passes steering spindle (4) and is connected with generator (2), be set with torsion spring (5) on the steering spindle (4), one end of torsion spring (5) is fixedly connected on standpipe (1) tube wall, and the other end is fixedly connected on the steering spindle (4).

2, automatic cable-releasing equipment for small wind power generator according to claim 1, it is characterized in that: the inwall of standpipe (1) is installed with standpipe retainer ring (6), be installed with steering spindle retainer ring (7) on the steering spindle (4), one end of torsion spring (5) is fixedly connected on the standpipe retainer ring (6), and the other end is fixedly connected on the steering spindle retainer ring (7).