CN219554810U - Wind power plant fan frequency converter with protection function - Google Patents

Abstract

The utility model discloses a wind power plant fan frequency converter with a protection function. According to the utility model, the protection cabin is arranged outside the main body of the frequency converter, the protection cabin comprises the components such as the extrusion mechanism, the bearing disc, the first spring and the back plate, and the like, the frequency converters with different sizes can be installed and fixed under the mutual cooperation, and the frequency converters can be fixed in the protection cabin to the greatest extent and are subjected to shock absorption and protection, so that the frequency converters can be prevented from being damaged due to external impact when being placed in a wind power plant for a long time, the frequency converter has strong practicability, the overall functionality is more various, and the protection function and effect are greatly improved compared with those of the traditional frequency converters.

Description

Wind power plant fan frequency converter with protection function

Technical Field

The utility model relates to the field of fan frequency converters, in particular to a wind farm fan frequency converter with a protection function.

Background

The fan frequency converter is a special frequency converter customized for various fans, adopts a frequency conversion speed regulation control device, changes the air quantity of the fan by changing the rotating speed of the fan so as to adapt to the requirements of the production process, saves the most energy consumption during operation and has the highest comprehensive benefit, so that the frequency conversion speed regulation is an efficient optimal speed regulation scheme, can realize stepless speed regulation of the fan, can conveniently form a closed-loop control system, realize constant voltage or constant flow control, is generally arranged on a shell of the fan, and is sleeved with a protective layer for protection.

Chinese patent CN217563520U discloses a fan converter that possesses safeguard function, and it includes the fan converter body, the top and the bottom of fan converter body all are provided with two different installation clamps, the equal fixedly connected with of both sides of fan converter body two rectangle poles, the surface cover of fan converter body is equipped with the protecting crust, the inner chamber sliding connection of protecting crust has two slide, one side of slide is provided with two spring one, the one end that the spring is close to the slide welds with the slide mutually, and this utility model uses through the cooperation of protecting crust, slide and spring one, can protect the fan converter body, avoids the fan converter body to damage because of the collision, uses through the cooperation of roof and oblique shape cover, has played rainproof effect for the fan converter body, has reduced the erosion of rainwater to the fan converter body, can reach the purpose that has anticollision and rain-proof.

According to the utility model, the fan frequency converter is fixedly connected to the inner cavity of the protective shell through the rectangular rods at the left end and the right end, but the protection to the upper end and the lower end of the fan frequency converter is lacking, when the fan frequency converter is impacted by the outside, the connection position can be loosened, so that the frequency converter can collide with the upper end and the lower end in the protective cabin, and the service life of the frequency converter is influenced by the damage of the frequency converter.

Disclosure of Invention

Therefore, in order to solve the defects, the utility model provides the wind farm fan frequency converter with the protection function.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a wind-powered electricity generation field fan converter that possesses safeguard function, includes the converter main part, the converter main part is located and can be carried out the protection cabin of shock attenuation protection to it inside, the top in protection cabin is equipped with the pressing mechanism that can improve the steadiness is connected to the converter main part, the face all is equipped with two sets of connecting pieces that can be connected fixedly with the outside with the bottom surface rear end about the protection cabin.

Preferably, the protection cabin includes hatch door, extrusion mechanism, loading tray, first spring, backplate and second spring, the preceding terminal surface in protection cabin is equipped with the opening, and the end is connected with two sets of hatch doors through a set of connecting axle about in the opening, the end all is equipped with a set of extrusion mechanism about the interior in protection cabin, the interior bottom surface in protection cabin is equipped with the recess, and the first spring coupling that the bottom surface was connected in six equidistant in the recess is in loading tray bottom surface, the interior back in protection cabin also is equipped with the recess, and the interior rear end in back recess links in the back of backplate through six equidistant second springs of connecting of group, the top in protection cabin is connected with pressing mechanism's bottom surface.

Preferably, the pressing mechanism comprises a pressing cabin, a moving rod, a driving gear, a top plate, a third spring and a pressing disc, wherein the inner bottom end of the pressing cabin is provided with a cavity communicated with the inside of the protecting cabin, the middle end of the top surface of the cavity is provided with a group of moving rods, the rear end of the moving rod is provided with a rack, a group of driving gears are contacted through the rack, the right end of the driving gear is connected with a group of driving rods, the right end of the driving rod penetrates through the right end of the pressing cabin and is communicated with the outside, the bottom end of the moving rod is connected with a group of top plates, and the bottom surface of the top plates is connected with the pressing disc through four groups of third springs.

Preferably, the components and the connection relation of the two groups of extrusion mechanisms are the same, the left end extrusion mechanism comprises an expansion piece, a rotating rod, a connecting rod, gear rollers, winches, extrusion pieces and a fourth spring, a cavity is formed in the inner end of a left bulkhead of the protection cabin, a group of expansion pieces are arranged at the middle end of the outer left surface of the protection cabin, a through hole communicated with the cavity in the wall is formed in the middle end of the left surface of the expansion piece, the rotating rod is arranged in the through hole, a group of gear rollers are connected to the position, close to the cavity in the wall, of the right end of the rotating rod through a group of connecting rods, the gear rollers are inserted into the cavity, three groups of winches are connected to the outer sides of the winches through connecting frames, a group of spring cabins are arranged at the upper end and the lower end of the right end of the cavity in the wall, a group of extrusion pieces are arranged at the right end of the spring cabins, the right end of the extrusion pieces penetrates through the right end of the spring cabins and is communicated with the outside, the left end of the extrusion pieces are connected with the left end of the spring cabins through a group of the fourth spring, the gear rollers are connected to the left end of the inner end of the spring cabins through a group of the left end, the three groups of the winches are connected to the left end of the upper ends of the extrusion pieces in the four groups of the extrusion pieces respectively, and the lower ends of the three groups of the extrusion pieces are connected to the left ends of the four groups of the extrusion pieces respectively through the left ends of the spring cabins.

Preferably, the right end of the driving rod is flush with the right side of the pressing cabin, and the right end of the driving rod is set to be regular hexagon.

Preferably, a toothed ring meshed with the gear roller is arranged at the right end of the expansion piece through hole close to the inner cavity of the wall, and tooth grooves meshed with the gear roller are also arranged at the middle ends of the three groups of winches.

Preferably, the extrusion part is in an inverted L shape, and protective layers are arranged at contact positions of the extrusion part, the bearing disc, the back plate and the pressing disc with the main body of the frequency converter.

Preferably, the outer ends of the two groups of rotating rods are provided with oval handles.

The utility model has the beneficial effects that:

according to the utility model, the protection cabin is arranged outside the main body of the frequency converter, the protection cabin comprises the components such as the extrusion mechanism, the bearing disc, the first spring and the back plate, and the like, the frequency converters with different sizes can be installed and fixed under the mutual cooperation, and the frequency converters can be fixed in the protection cabin to the greatest extent and are subjected to shock absorption and protection, so that the frequency converters can be prevented from being damaged due to external impact when being placed in a wind power plant for a long time, the frequency converter has strong practicability, the overall functionality is more various, and the protection function and effect are greatly improved compared with those of the traditional frequency converters.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a right side view of the present utility model;

FIG. 4 is a schematic view of the right-side cross-sectional structure of the present utility model;

FIG. 5 is a schematic view of an elevational cross-sectional structure of the pressing mechanism of the present utility model;

fig. 6 is an enlarged schematic view of the structure of fig. 5A.

Wherein: the frequency converter comprises a frequency converter main body-1, a protection cabin-2, a pressing mechanism-3, a connecting piece-4, a cabin door-21, an extrusion mechanism-22, a bearing disc-23, a first spring-23 a, a back plate-24, a second spring-24 a, a pressing cabin-31, a moving rod-32, a driving rod-33, a driving gear-33 a, a top plate-34, a third spring-34 a, a pressing disc-35, an expanding piece-221, a rotating rod-222, a connecting rod-222 a, a gear roller-222 b, a winch-223, an extrusion piece-224 and a fourth spring-224 a.

Detailed Description

In order to further explain the technical scheme of the utility model, the following is explained in detail through specific examples.

Referring to fig. 1-3, the utility model provides a wind farm fan frequency converter with a protection function, which comprises a frequency converter main body 1, wherein the frequency converter main body 1 is arranged in a protection cabin 2 capable of damping and protecting the frequency converter main body, the top end of the protection cabin 2 is connected with a pressing mechanism 3 capable of improving the connection stability of the frequency converter main body 1, two groups of connecting pieces 4 capable of being connected and fixed with the outside are welded at the left and right sides and the rear end of the bottom surface of the protection cabin 2, and the front of the connecting piece 4 is provided with a connecting hole capable of being connected with the outside through an external screw.

Referring to fig. 4, the utility model provides a wind farm fan frequency converter with protection function, the protection cabin 2 comprises cabin doors 21, extrusion mechanisms 22, bearing discs 23, first springs 23a, back plates 24 and second springs 24a, the front end surface of the protection cabin 2 is provided with openings, the left and right ends in the openings are connected with two groups of cabin doors 21 through a group of connecting shafts, the front ends of the two groups of cabin doors 21 are provided with handles, the two groups of cabin doors 21 can be driven to rotate around the connecting shafts by applying force to the handles to perform switching, the left and right ends of the protection cabin 2 are provided with a group of extrusion mechanisms 22, the inner bottom surface of the protection cabin 2 is provided with grooves, the inner bottom surface of the grooves is connected with the bottom surface of the bearing disc 23 through six groups of first springs 23a which are connected at equal intervals, the inner rear ends of the grooves at the rear surfaces are connected with the back surfaces of the back plates 24 through six groups of second springs 24a which are connected at equal intervals, and the top surfaces of the bearing discs 23 and the front surfaces of the back plates 24 are adhered with protection layers, for example, a rubber layer is arranged on the front surfaces of the back plates, so that the two groups of cabin doors 21 can be driven to rotate around the connecting shafts, and the two groups of cabin fan frequency converter main body 1 can be protected, friction force can be increased, and the top surface of the frequency converter main body can also be prevented from being worn down in the process of the top and the front surface of the converter main body 23 and the front and the bearing disc 23;

the pressing mechanism 3 comprises a pressing cabin 31, a moving rod 32, a driving rod 33, a driving gear 33a, a top plate 34, a third spring 34a and a pressing disc 35, wherein a cavity communicated with the inside of the pressing cabin 31 is formed in the inner bottom end of the pressing cabin 31, a group of moving rods 32 are arranged at the middle end of the top surface of the cavity, racks are welded at the rear ends of the moving rods 32, a group of driving gears 33a are contacted through the racks, a group of driving rods 33 are welded at the right end of the driving gear 33a, the right end of the driving rod 33 penetrates through the inner right end of the pressing cabin 31 and is communicated with the outside, the right end of the driving rod 33 is flush with the right side of the pressing cabin 31, the right end of the driving rod 33 is in a regular hexagon, the driving rod 33 and the driving gear 33a can be driven to rotate through an external hexagon socket wrench, so as to drive the moving rod 32 to move up and down, a group of top plates 34 are welded at the bottom end of the moving rod 32, the bottom surface of the moving rod 34 is connected with the pressing disc 35 through four groups of third springs 34a, and the contact positions of the bottom surface of the pressing disc 35 and the main body 1 of the frequency converter are provided with a protective layer, for example, and abrasion of the outer side of the main body 1 can be prevented in the use process.

Referring to fig. 5-6, the utility model provides a wind farm fan frequency converter with protection function, the components and connection relation of two groups of extrusion mechanisms 22 are the same, the left end extrusion mechanism 22 comprises an expansion piece 221, a rotary rod 222, a connecting rod 222a, a gear roller 222b, a winch 223, an extrusion piece 224 and a fourth spring 224a, the inner end of the left bulkhead of the protection cabin 2 is provided with a cavity, the outer left middle end of the protection cabin 2 is welded with a group of expansion piece 221, the left middle end of the expansion piece 221 is provided with a through hole communicated with the cavity in the wall, the through hole is internally provided with a rotary rod 222, the outer end of the rotary rod 222 is provided with an oval handle so as to facilitate the force application to drive the rotary rod 222 to rotate, the right end of the rotary rod 222 is welded with a group of gear roller 222b through a group of connecting rod 222a, the gear roller 222b is inserted into the cavity in the wall, the position of the cavity in the wall is connected with three groups of winches 223 through a connecting frame, the outer sides of the three groups of winches 223 are connected with a winch rope, the right ends of the through holes are welded with toothed rings meshed with the gear roller 222b near the inner cavity of the wall, the middle ends of the three groups of winches 223 are also provided with tooth grooves meshed with the gear roller 222b, the gear roller 222b is inserted into the tooth grooves at the middle ends of the three groups of winches 223, the three groups of winches 223 are driven to recover or release the winch rope through the rotation of the rotating rod 222, a group of spring cabins are arranged at the upper, middle and lower ends of the right ends of the inner cavities of the wall, the right ends of the three groups of spring cabins are respectively provided with a group of extrusion 224, the extrusion 224 is in an inverted L shape, the contact position of the outer sides of the extrusion 224 and the frequency converter main body 1 is provided with a protective layer, such as a rubber layer, the outer sides of the frequency converter main body 1 can be protected, the right ends of the extrusion 224 penetrate through the right ends of the spring cabins and are communicated with the outside, the left ends of the three groups of extrusion 224 are connected with the left ends of the spring cabins through a group of fourth springs 224a, and the winch ropes of the three groups of winches 223 penetrate through the left side of the lower middle three groups of spring cabins and the middle end of the fourth spring 224a respectively to be connected with the middle end of the left side of the three groups of extrusion pieces 224, and the winch ropes can be recovered through the rotation of the three groups of winches 223 so as to drive the three groups of extrusion pieces 224 to shrink into the spring cabins.

The working principle is as follows:

before use, the protection cabin 2 is connected to an external proper position through a connecting piece 4, then force is applied to handles at the outer ends of the left rotating rod 222 and the right rotating rod 222, the rotating rod 222 is twisted, the rotating rod 222 rotates to drive the gear roller 222b to rotate, the winch 223 is driven to rotate through tooth grooves of the winch 223, the winch rope is recovered, the extrusion piece 224 is driven to retract, then the rotating rod 222 is dragged outwards, at the moment, the gear roller 222b moves outwards and is clamped into a toothed ring to prevent the winch 223 from resetting, then the driving rod 33 is rotated through an internal hexagonal wrench, the driving rod 33 rotates to drive the driving gear 33a to rotate, and the moving rod 32 is driven to move upwards through racks at the rear ends of the moving rod 32, so that the top plate 34 and the pressing plate 35 are driven to move upwards;

then force is applied to the front handles of the two groups of cabin doors 21, the cabin doors 21 are opened, the frequency converter main body 1 is placed in the protection cabin 2, the back surface of the frequency converter main body 1 contacts with the front surface of the back plate 24, the back plate 24 presses the second springs 24a to move backwards, the bottom surface of the frequency converter main body 1 contacts with the top surface of the bearing disc 23, the first springs 23a are compressed to enable the frequency converter main body 1 to move downwards, then the driving rod 33 is rotated through the inner hexagonal wrench, the driving gear 33a rotates to drive the moving rod 32, the top plate 34 and the pressing disc 35 to move downwards, the pressing disc 35 finally contacts with the top surface of the frequency converter main body 1, finally force is applied to the two groups of rotating rods 222 to enable the rotating rod to move inwards, the gear roller 222b is pushed out of the toothed ring, limit of the winch 223 is relieved, at the moment, the fourth springs 224a are outwards pushed out of the extrusion piece 224 through self elasticity to drive the winch 223 to rotate to release ropes, the inner sides of the extrusion pieces 224 of the left and right groups of the extrusion piece and the extrusion piece 3 contact with the outer sides of the frequency converter main body 1 to form a fixed handle, finally force is applied to the front ends of the two groups of cabin doors 21, and finally the cabin doors 21 are closed, and the frequency converter main body 1 can be protected.

The utility model provides a wind power plant fan frequency converter with a protection function, which is characterized in that the protection cabin is arranged outside a main body of the frequency converter, the protection cabin comprises an extrusion mechanism, a bearing disc, a first spring, a back plate and other components, the frequency converters with different sizes can be installed and fixed under the mutual cooperation, the frequency converters can be fixed in the protection cabin to the greatest extent, and the frequency converters are damped and protected, so that the frequency converters can be prevented from being damaged due to external impact after being placed in the wind power plant for a long time, the frequency converter has strong practicability, the overall functionality is various, and the protection function and effect are greatly improved compared with the traditional frequency converters.

The foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. Wind-powered electricity generation field fan converter that possesses safeguard function, its characterized in that: including converter main part (1), inside can locate the protection cabin (2) that carries out shock attenuation protection to it in converter main part (1), the top in protection cabin (2) is equipped with can improve the pressing mechanism (3) of converter main part (1) connection steadiness, the face all is equipped with two sets of connecting pieces (4) that can be connected fixedly with the outside with the bottom surface rear end about protection cabin (2).

2. The wind farm fan frequency converter with a protection function according to claim 1, wherein: the protection cabin (2) comprises cabin doors (21), extrusion mechanisms (22), bearing plates (23), first springs (23 a), a back plate (24) and second springs (24 a), openings are formed in the front end face of the protection cabin (2), two groups of cabin doors (21) are connected to the left end and the right end of the opening through a group of connecting shafts, a group of extrusion mechanisms (22) are arranged at the inner left end and the right end of the protection cabin (2), grooves are formed in the inner bottom face of the protection cabin (2), the inner bottom face of each groove is connected to the bottom face of the corresponding bearing plate (23) through six groups of equidistant first springs (23 a), grooves are formed in the inner rear face of the protection cabin (2), the inner rear end of each groove is connected to the back face of the back plate (24) through six groups of equidistant second springs (24 a), and the top end of the protection cabin (2) is connected to the bottom face of the pressing mechanism (3).

3. The wind farm fan frequency converter with a protection function according to claim 2, wherein: the pressing mechanism (3) comprises a pressing cabin (31), a moving rod (32), a driving rod (33), a driving gear (33 a), a top plate (34), a third spring (34 a) and a pressing disc (35), a cavity communicated with the inside of the protection cabin (2) is formed in the inner bottom end of the pressing cabin (31), a group of moving rods (32) are arranged at the middle end of the top surface of the cavity, racks are arranged at the rear end of the moving rods (32), a group of driving gears (33 a) are contacted through the racks, a group of driving rods (33) are connected to the right end of the driving gear (33 a), the right end of the driving rod (33) penetrates through the right end of the pressing cabin (31) to be communicated with the outside, a group of top plates (34) are connected to the bottom end of the moving rods (32), and the bottom surface of the top plates (34) is connected with the pressing disc (35) through four groups of third springs (34 a).

4. The wind farm fan frequency converter with a protection function according to claim 2, wherein: the components and the connection relation of the two groups of extrusion mechanisms (22) are the same, the left end of the extrusion mechanism (22) comprises an expansion piece (221), a rotary rod (222), a connecting rod (222 a), a gear roller (222 b), a winch (223), an extrusion piece (224) and a fourth spring (224 a), the inner end of the left bulkhead of the protection cabin (2) is provided with a cavity, the middle end of the outer left surface of the protection cabin (2) is provided with a group of expansion piece (221), the middle end of the left surface of the expansion piece (221) is provided with a through hole communicated with the cavity in the wall, the through hole is internally provided with a rotary rod (222), the position of the right end of the rotary rod (222) close to the cavity in the wall is connected with a group of gear roller (222 b) through a group of connecting rod (222 a), the position of the cavity in the wall is connected with three groups of winches (223) through the connecting frame, the outer sides of the three groups of winches (223) are all connected with a group of spring cabins, the upper middle lower ends of the inner right ends of the cavity in the wall are all provided with a group of spring cabins, the three groups of the right ends of the extrusion piece (224) are all connected with the inner ends of the third spring cabins (224) through the left ends and the inner ends of the extrusion piece (224) are all connected with the inner ends of the four spring cabins, and the winch ropes of the left, middle and right groups of winches (223) respectively penetrate through the left sides of the lower, middle and three groups of spring cabins and the middle ends of the fourth springs (224 a) and are connected with the middle ends of the left sides of the three groups of extrusion pieces (224).

5. A wind farm fan frequency converter with protection function according to claim 3, characterized in that: the right end of the driving rod (33) is flush with the right side of the pressing cabin (31), and the right end of the driving rod (33) is set to be regular hexagon.

6. The wind farm fan frequency converter with a protection function according to claim 4, wherein: the right end of the through hole of the expanding piece (221) is provided with a toothed ring meshed with the gear roller (222 b) at a position close to the cavity in the wall, and the middle ends of the three groups of winches (223) are also provided with tooth grooves meshed with the gear roller (222 b).

7. The wind farm fan frequency converter with a protection function according to claim 4, wherein: the extrusion piece (224) is of an inverted L shape, and protective layers are arranged at the contact positions of the extrusion piece (224), the bearing disc (23), the back plate (24) and the pressing disc (35) with the frequency converter main body (1).

8. The wind farm fan frequency converter with a protection function according to claim 4, wherein: the outer ends of the two groups of rotating rods (222) are provided with oval handles.