There is the wind power generating set transmission system of shock-absorbing function
Technical field
The present invention relates to a kind of wind power generating set transmission system with shock-absorbing function.
Background technique
At present, the power train of wind power generating set mostly is and is rigidly connected, and wind-driven generator is when generating electricity, and power train directly subjects from the instantaneous changeable tilting moment of impeller and moment of torsion, not buffering, and transmission is not steady, affects the normal operation of generator set.The main shaft bearing stressing conditions of power train front end is severe, easily causes the damage of bearing.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of wind power generating set transmission system with shock-absorbing function, it can play buffer function, makes transmission more steady.
The present invention is achieved by the following measures:
The wind power generating set transmission system with shock-absorbing function of the present invention, comprises impeller and main shaft, institute
Stating front-end of spindle stretches in the wheel hub of impeller, the ring elastic shock attenuation dish be enclosed within main shaft is provided with in the wheel hub of described impeller, in the middle part of the card of described elastic shock attenuation dish, axial depression is formed and to enclose and cross section is the groove of U-shaped along card one, the inner circumference of elastic shock attenuation dish is provided with the interior assembled end of turning up, the excircle of elastic shock attenuation dish is provided with the exterior end face turned up, described main shaft is provided with bulge loop, described interior assembled end outer surface is close to bulge loop inner side surface and links together, described exterior end face internal surface is close to the wheel hub exterior edge face of impeller and links together, rubber damping body is provided with in the groove of described elastic shock attenuation dish.
Above-mentioned rubber damping body overall perfusion in groove, and rubber damping body and elastic shock attenuation dish bonding.
Above-mentioned exterior end face place plane is positioned at the outside of assembled end place plane.
Above-mentioned elastic shock attenuation dish is made up of spring steel.
The invention has the beneficial effects as follows: when wind wheel bears sudden change load, elastic shock attenuation dish axially can produce resiliently deformable, the cavity volume of elastic shock attenuation dish can change, and then compress or stretching rubber damping body, make it be out of shape, play damping, buffering effect, and then to power train load shedding, lower the load that main shaft bearing bears, make transmission more steady.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: the wheel hub of 1 impeller, 2 main shafts, 3 grooves, 4 exterior end faces, assembled end in 5,6 rubber damping bodies, 7 bulge loops.
Embodiment
As shown in Figure 1, the wind power generating set transmission system with shock-absorbing function of the present invention, comprise impeller and main shaft 2, main shaft 2 front end is stretched in the wheel hub 1 of impeller, the ring elastic shock attenuation dish be enclosed within main shaft 2 is provided with in the wheel hub 1 of impeller, in the middle part of the card of elastic shock attenuation dish, axial depression is formed and to enclose and cross section is the groove 3 of U-shaped along card one, the inner circumference of elastic shock attenuation dish is provided with the interior assembled end 5 of turning up, the excircle of elastic shock attenuation dish is provided with the exterior end face 4 turned up, main shaft 2 is provided with bulge loop 7, interior assembled end 5 outer surface is close to bulge loop 7 inner side surface and links together, exterior end face 4 internal surface is close to wheel hub 1 exterior edge face of impeller and links together.Exterior end face 4 place plane is positioned at the outside of assembled end 5 place plane, and exterior end face 4 and interior assembled end 5 are guiding load-carrying surface, avoid being subject to curved and being out of shape.Rubber damping body 6 is provided with in the groove 3 of elastic shock attenuation dish.Elastic shock attenuation dish is made up of spring steel.
Rubber damping body 6 plays the effect of cutting down power of toppling, and its material can be hybrid type, meet the blower fan requirement in working life of 20 years.Rubber damping body 6 in this U-shaped groove 3 can adopt the method for overall perfusion and elastic shock attenuation dish to be connected as a single entity; Also can adopt the form of Split assembled, one group of rubber damping body 6 is filled in the inner chamber at U-shaped groove 3, be glued or install by the method that limited ring is spacing.
When wind wheel bears sudden change load, elastic shock attenuation dish axially can produce resiliently deformable, and the cavity volume of its U-shaped groove 3 can change, and then compresses or stretching rubber damping body 6, makes it be out of shape, plays damping, buffering effect, and then to power train load shedding.
The above is only the preferred implementation of this patent; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the art of this patent principle; can also make some improvement and replacement, these improve and replace the protection domain that also should be considered as this patent.