CN218162051U - Generator vibration damper, generator and wind power generation equipment - Google Patents

Abstract

The utility model provides a generator vibration damper, generator and wind power generation equipment relates to wind power generation equipment technical field, and the scheme of adoption is: the vibration damping device comprises a base, wherein a shell is arranged on the base, the shell is of an annular structure, at least three vibration damping pieces are arranged on the shell along the circumferential direction of the shell, the telescopic direction of the vibration damping pieces is along the radial direction of the shell, each vibration damping piece comprises a telescopic end, the telescopic end extends out of the inner circular surface of the shell, a ball hinge is arranged at the telescopic end, and a vibration guide plate is arranged on the ball hinge. The utility model discloses can attenuate the vibration of a plurality of directions of generator body and a plurality of position, reduce the transmission of vibration, avoid resonating, reduce the generator to wind power equipment's influence, prolong its life.

Description

Generator vibration reduction device, generator and wind power generation equipment

technical field

The utility model relates to the technical field of wind power generation equipment, in particular to a vibration damping device for a generator, a generator and wind power generation equipment.

Background technique

The power of wind power generation equipment is constantly increasing, and the vibration problem of its generator is also constantly emerging. The generator is located behind the wind power generation equipment. Due to the force of the transmission system, a large vibration is generated during transmission. The vibration passes through the rotor shaft. , housing and other components are transmitted to the generator, causing the internal structure of the generator to vibrate. When the internal components of the generator resonate with the external components, the generator is easily damaged; in order to reduce the impact of vibration on the generator body, A vibration damping device is often installed at the bottom of the generator body, but there are many internal structures of the generator body, and the vibration is often in multiple directions and positions, and the vibration of the generator body is also uneven, and the existing vibration damping device is not effective. Good, but still affect the service life of wind power generation equipment.

Therefore, in view of the present situation of the above-mentioned prior art, it is an urgent problem to be solved to develop a vibration damping device for a generator.

Utility model content

In order to overcome the deficiencies in the above-mentioned prior art, the utility model provides a generator vibration damping device, which can attenuate the vibration of the generator body in multiple directions and multiple positions, reduce the transmission of vibration, avoid resonance, and reduce the vibration of the generator body. The impact on wind power equipment and prolong its service life.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a vibration damping device for a generator, including a base, a housing is arranged on the base, the housing is an annular structure, and the upper edge of the housing is There are at least three shock absorbers arranged in the circumferential direction, the telescopic direction of the shock absorbers is along the radial direction of the housing, the shock absorbers include telescopic ends, and the telescopic ends protrude from the inner circular surface of the housing , the telescopic end is provided with a ball hinge, and a vibration guide plate is provided on the ball hinge. The generator body is installed inside the annular shell, and the vibration guide plate cooperates to clamp the generator body, and absorbs the vibration of the generator body through the vibration damper, which can reduce the vibration of the generator body in multiple directions and positions. As a result, vibration transmission is reduced, resonance is avoided, and the service life of wind power generation equipment is prolonged.

Further, the vibration guide plate has an arc-shaped structure. It can better fit the generator body in the circumferential direction, make the installation of the generator body more stable, and absorb vibrations in more directions.

Further, vibration-damping sleeves are respectively provided on both sides of the base, and the vibration-damping sleeves are made of rubber, and a support rod is arranged inside the vibration-damping sleeve, and the support rod is connected to the housing. The vibration transmission between the generator body and the external environment can be blocked through the vibration damping, further avoiding resonance.

Further, both the front end and the rear end of the base are provided with generator support plates, and the generator support plates are provided with support plates. Can reliably support the generator body.

Further, the generator support plate is connected to the support support plate through two spring dampers. Vibration reduction can be realized at both ends of the generator body.

Further, the shock absorber is a hydraulic cylinder, and the hydraulic cylinders are connected with the hydraulic station through the oil circuit. The hydraulic station is arranged on the base, and the hydraulic station is provided with a pressure regulating valve. A pressure gauge is provided on the valve. The greater the power of the generator, the greater the vibration, and the greater the pressure that needs to be provided by the damper. The pressure regulating valve can uniformly adjust the working pressure of the damper, which is suitable for vibration reduction of generators with different powers.

Further, a rubber pad is provided under the base. It can avoid the transmission of vibration between the generator body and the external environment.

The utility model also provides a generator, which includes the above-mentioned generator vibration reduction device and a generator body, the casing surrounds the generator body, the vibration guide plate and the support plate are connected with the generator body The surface of the generator body is bonded. It has the beneficial effect of little vibration and does not affect other components in the external environment.

The utility model also provides a wind power generation device, which comprises the above-mentioned generator and a nacelle, and the generator is fixed in the cavity of the nacelle. The vibration of the generator of the wind power generation equipment is small, and the service life of the wind power generation equipment is long.

As can be seen from the above technical solutions, the utility model has the following advantages:

This solution provides a vibration damping device for generators, generators and wind power generation equipment. By setting the housing, vibration damping parts, ball hinges and vibration guide plates, vibrations in multiple positions and directions of the generator body can be controlled. Vibration reduction, the vibration reduction effect is good; by setting the vibration reduction sleeve and rubber pad on the base, the vibration transmission between the generator body and the external environment can be avoided, avoiding resonance, and reducing the mutual vibration influence; through the motor support plate, The support plate and the spring damper can damp the vibration at both ends of the motor body; the working pressure of the damper can be adjusted through the pressure regulating valve and the hydraulic station, which has a vibration damping effect on the generator body of different power.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some specific implementation methods of the utility model. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a structural schematic diagram 1 of a specific embodiment 1 of the present invention.

Fig. 2 is the structural schematic diagram 2 of the first embodiment of the utility model

Fig. 3 is a structural schematic diagram 1 of the second embodiment of the utility model.

Fig. 4 is an enlarged view of A in Fig. 3 .

Fig. 5 is a structural schematic diagram II of the second embodiment of the utility model.

Fig. 6 is a schematic structural diagram of a third embodiment of the utility model.

Fig. 7 is a schematic structural view of the fifth embodiment of the utility model.

In the figure, 1. Base, 2. Damping sleeve, 3. Thread sleeve, 4. Support rod, 5. Shell, 6. Hydraulic cylinder, 7. Fixed plate, 8. Ball hinge, 9. Vibration guide plate, 10. Generator body, 11. Rubber pad, 12. Generator support plate, 13. Spring shock absorber 2, 14. Support plate, 15. Pressure regulating valve, 16. Hydraulic station, 17. Engine room, 18. Pressure Table, 19, spring shock absorber one.

detailed description

In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in this specific embodiment. Obviously, the following The described specific implementations are only some specific implementations of the present utility model, but not all specific implementations. Based on the specific implementation modes in this patent, all other specific implementation modes obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of this patent.

Specific implementation mode one

As shown in FIG. 1 and FIG. 2 , the utility model provides a vibration damping device for a generator, which includes a base 1 , a casing 5 , a vibration damper, and a generator support plate 12 . The base 1 is provided with a housing 5, the housing 5 is an annular structure, and the housing 5 is uniformly provided with three shock absorbers along its circumference, the shock absorbers are spring damper one 19, and the spring damper one 19 The expansion and contraction direction is along the radial direction of the housing 5, the fixed end of the spring damper one 19 is fixed on the housing 5 through the fixed plate 7, and the telescopic end of the spring damper one 19 protrudes from the inner circular surface of the housing 5, namely Located in the ring-shaped interior of the shell 1, the telescopic end is provided with a ball hinge, and the telescopic end is rotatably connected with the ball head of the ball hinge 8; the rotating shaft of the ball hinge 8 is provided with a vibration guide plate 9, which is an arc-shaped The central angle corresponding to the vibrating plate 9 is 90°, which can better fit the generator body 10 in a larger area and transmit vibrations from multiple positions; the two sides of the base 1 are respectively provided with vibration-damping sleeves 2, and the vibration-damping sleeves The barrel 2 is made of rubber, the damping sleeve 2 is provided with a threaded sleeve 3, the threaded sleeve 3 is provided with a support rod 4, the support rod 4 is provided with threads, and the mounting holes on both sides of the support rod 4 and the housing 5 are detachable connection, the front and rear ends of the base 1 are provided with a generator support plate 12, the generator support plate 12 is located below the corresponding end of the generator body 10, the generator support plate 12 is provided with a support plate 14, the support plate 14 It is also an arc-shaped structure, which can be in contact with the generator body 10 in a larger area to achieve better support and vibration reduction; the generator support plate 12 and the support plate 14 are connected by the spring shock absorber 2 13, and the bottom of the base 1 is set There is a rubber pad 11, which can reduce vibration transmission through the base 1 and prevent the generator body 10 from resonating with the external environment.

Specific implementation mode two

As shown in Figures 3 to 5, the structure of this specific embodiment is basically the same as that of specific embodiment 1, the difference is that in this specific embodiment, the shock absorber adopts a hydraulic cylinder 6, and the cylinder body of the hydraulic cylinder 6 is fixed by a fixing plate 7 On the housing 5, the piston rod of the hydraulic cylinder 6 protrudes from the inner surface of the housing 5, and the end of the piston rod is rotatably connected with the ball joint of the ball hinge 8. The hydraulic cylinder 6 is supplied with oil through the hydraulic station 16, and the hydraulic station 16 A pressure regulating valve 15 is arranged on the connection pipeline with the hydraulic cylinder, and a pressure gauge 18 is also arranged on the pressure regulating valve 15, which can adjust the pressure of the hydraulic cylinder 6 according to the intensity of the vibration of the generator body 10, so that it is suitable for different power The generator body 10 can have a good damping effect.

Specific implementation mode three

As shown in Figure 6, on the basis of specific embodiments 1 and 2, this specific embodiment is provided with 5 shock absorbers, and correspondingly, the central angle corresponding to the vibration guide plate 9 is 50°; Vibration in multiple directions and positions achieves better conduction and damping effects.

Specific implementation mode four

Based on the specific embodiments 1 to 3, the utility model also provides a generator, including the generator body 10 and the above-mentioned generator vibration damping device, the vibration guide plate 9 and the support plate 14 are bonded to the surface of the generator body 10 .

In order to increase the contact area between the vibration guide plate and the generator body, the length of the vibration guide plate should be greater than 1/2 of the length of the generator body.

Specific implementation mode five

Based on Embodiment 4, the utility model also provides a wind power generation device, as shown in FIG. 7 , the wind power generation device includes a nacelle 17 and the above-mentioned generator, and the base 1 of the generator is fixed in the cavity of the nacelle 17 by bolts.

The damping principle of the utility model is:

When the generator body 10 vibrates, the vibration at its front and rear ends is attenuated by the generator support plate 12, the support plate 14 and the spring damper 13, and the vibration in multiple directions and positions in the center passes through the vibration guide plate. 9 is transmitted to the vibration damper, which attenuates it, and connects the vibration guide plate 8 and the vibration damper through the ball joint 8, which can conduct and attenuate the vibration in more than 10 directions of the generator body; the base 1 The vibration-damping sleeve 2 and the rubber pad 11 are provided to prevent the mutual influence of the vibration between the motor body 10 and the external environment, and avoid the occurrence of resonance.

Can find out that the utility model has following beneficial effect from above specific embodiment:

1. By setting the shell 5, the vibration damping member, the ball hinge 8 and the vibration guide plate 9, the vibration of more than 10 positions and directions of the generator body can be damped, and the vibration damping effect is good;

2. By setting the vibration guide plate 9 into an arc shape, the contact area with the generator body 10 is increased, which is beneficial to vibration reduction at multiple positions of the generator housing 5;

3. By setting the vibration damping sleeve and the rubber pad 11 on the base 1, the vibration transmission between the generator body 10 and the external environment can be avoided, resonance can be avoided, and mutual vibration influence can be reduced;

4. Through the generator support plate 12, the support plate 14 and the spring damper 13, the vibration at both ends of the motor body can be reduced;

5. The working pressure of the shock absorber can be adjusted through the pressure regulating valve 15 and the hydraulic station 16, which has a shock absorbing effect on the generator body 10 of different power.

The terms "upper", "lower", "outside", "inside" and the like in the specification and claims of the present utility model and the above-mentioned drawings (if any) are used to distinguish the relative relationship on the position, and it is not necessary to give a qualitative . It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The above descriptions of the disclosed specific implementation methods enable those skilled in the art to realize or use the utility model. Various modifications to these specific embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other specific embodiments without departing from the spirit or scope of the present invention. accomplish. Therefore, the present invention will not be limited to the specific embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A vibration damping device for a generator, characterized in that it comprises a base (1), the base (1) is provided with a housing (5), the housing (5) is an annular structure, and the housing The body (5) is provided with at least three shock absorbers along its circumference, the telescopic direction of the shock absorbers is along the radial direction of the housing (5), the shock absorbers include telescopic ends, and the telescopic The end protrudes from the inner circular surface of the housing (5), the telescopic end is provided with a ball hinge (8), and the ball hinge (8) is provided with a vibration guide plate (9). 2. The generator vibration reduction device according to claim 1, characterized in that, the vibration guide plate (9) is an arc-shaped structure. 3. The generator vibration damping device according to claim 2, characterized in that, vibration damping sleeves (2) are respectively arranged on both sides of the base (1), and the vibration damping sleeves (2) are made of rubber , the shock absorbing sleeve (2) is provided with a support rod (4), and the support rod (4) is connected with the housing (5). 4. The generator vibration damping device according to claim 3, characterized in that, the front end and the rear end of the base (1) are provided with a generator support plate (12), and the generator support plate (12) A support pallet (14) is arranged on it. 5. The generator vibration damping device according to claim 4, characterized in that, the generator support plate (12) is connected to the support pallet (14) through a spring damper two (13). 6. The generator damping device according to claim 5, characterized in that, the damping member is a hydraulic cylinder (6), and the hydraulic cylinder (6) is connected with the hydraulic station (16) through an oil circuit, The hydraulic station (16) is arranged on the base (1), the hydraulic station (16) is provided with a pressure regulating valve (15), and the pressure regulating valve (15) is provided with a pressure gauge (18). 7. The generator vibration reduction device according to claim 6, characterized in that, a rubber pad (11) is arranged under the base (1). 8. A generator, characterized in that it comprises a generator vibration damping device and a generator body (10) according to any one of claims 4-7, and the housing (5) surrounds the power generator The machine body (10), the vibration guide plate (9) and the support plate (14) are all attached to the surface of the generator body (10). 9. The generator according to claim 8, characterized in that, the length of the vibration guide plate (9) is greater than 1/2 of the length of the generator body (10). 10. A wind power generation device, characterized in that it comprises the generator according to claim 8 and a nacelle (17), the generator being fixed in the cavity of the nacelle (17).

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