CN114893451B - Axial fan supports damping device - Google Patents
Axial fan supports damping device Download PDFInfo
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- CN114893451B CN114893451B CN202210697891.5A CN202210697891A CN114893451B CN 114893451 B CN114893451 B CN 114893451B CN 202210697891 A CN202210697891 A CN 202210697891A CN 114893451 B CN114893451 B CN 114893451B
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- assembly
- fan
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- damping device
- extension
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial flow fan supporting and damping device which comprises an extension assembly, a first fixing component and a fastening assembly, wherein the extension assembly is fixedly connected with the first fixing component; the extension assembly comprises a first assembly hole, the first assembly hole is formed in the center of the extension assembly and matched with the first fixing component in size; the extension assembly is configured to be connected with the fan sliding seat; the first fixing component is used for fixedly supporting the extension assembly on the fan slide way; the fastening assembly is mounted on the extension assembly for further securing the extension assembly to the fan slide. The invention has the beneficial effects that: the whole body formed by the extension assembly and the sliding seat is fixedly supported on the fan slideway, so that after the air inlet box/diffuser vibrates in work, the vibration cannot be diffused and enhanced to cause abnormal vibration to stop the fan, and the working stability of the axial flow fan is improved.
Description
Technical Field
The invention relates to the technical field of axial flow fans, in particular to an axial flow fan supporting and damping device.
Background
Axial flow blowers are generally adopted by primary blowers, blowers and induced draft fans of coal-fired power plants with large-capacity units and are composed of air inlet boxes, impeller casings at the middle sections and diffusers. The middle section impeller shell is fastened on a fan foundation through foundation bolts, a fan rotor bearing box support is arranged in the middle section impeller shell, the bearing box provided with the impeller is fixed in the middle section impeller shell, and a gap between the shell and the tip end of the impeller is small so as to guarantee higher efficiency. The front end air inlet box and the rear end diffuser are distributed on the front side and the rear side of the middle section impeller shell, and the air enters the air inlet section/the diffuser section after the turbine is stopped, so that the balance of the impeller of the fan and the clearance between the tip of the blade and the shell can be measured. In order to facilitate the hoisting of the fan rotor during maintenance, the air inlet box/diffuser is connected to the slide way through the slide seat, the slide way is fixed on the fan foundation, and the slide seat can axially move back and forth on the slide way, so that the air inlet box/diffuser moves back and forth. However, the air inlet box and the diffuser are not fixed because of being located on the slide way, and the machine itself can generate vertical abnormal vibration sometimes in the operation process, so that the machine is forced to stop due to the excessive vibration, and the safe and stable operation of the fan is influenced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an axial flow fan supporting and damping device, which adopts the technical scheme that:
the utility model provides an axial fan supports damping device which characterized in that includes:
an extension member;
a first fixing member;
a fastening assembly;
the extension assembly comprises a first assembly hole, the first assembly hole is formed in the center of the extension assembly and matched with the first fixing component in size;
wherein the extension assembly is configured to couple to a fan carriage;
the first fixing component is used for fixedly supporting the extension assembly on the fan slideway;
the fastening assembly is arranged on the extension assembly and used for fixing the extension assembly on the fan slide way;
preferably, the extension assembly is a rectangular plate, and one end of the rectangular plate is connected with the fan sliding seat through welding;
preferably, the first fixing member is a bolt, and the first assembling hole is a threaded hole;
preferably, the fastening assembly comprises:
a top panel having a long side and a short side, the long side having a length slightly greater than the extension assembly length;
the side plate is provided with an upper end and a lower end, and the height of the side plate is slightly larger than that of the fan sliding seat;
a limiting plate;
a second assembly hole;
the upper ends of the side plates are fixedly connected to the long sides of the two sides of the top plate, and a cavity is formed below the top plate;
the limiting plate is fixedly connected to one side, facing the cavity, of the lower end of the side plate;
the second assembling hole is formed in the center of the top plate, and the size of the second assembling hole is matched with that of the first fixing component;
preferably, the fastening assembly further comprises:
a second fixing member;
a third assembly hole;
wherein the second securing member is for further securing the fastening assembly with the extension assembly;
the third assembling hole is positioned on the top plate, does not coincide with the second assembling hole in position, and is matched with the second fixing component in size;
preferably, the second fixing member is a bolt, and the third assembling hole is a threaded hole;
preferably, the fastening assembly comprises two third assembling holes, the third assembling holes are symmetrically arranged on two sides of the second assembling hole, and a connecting line of the second assembling hole and the third assembling hole is parallel to the long edge of the top plate;
preferably, the support vibration damping device further comprises a support member;
the supporting members are symmetrically arranged on two sides of the first assembling hole;
one end of the supporting component is fixedly connected below the extension component, and the other end of the supporting component is configured to be in contact with and extruded by the fan slideway;
preferably, the support member further comprises a spacer;
wherein the gasket is arranged at one end of the supporting member, which is in contact with the fan slideway;
wherein the shim is made of a slow rebound material.
Preferably, the support vibration damping device further includes:
a stabilizing member having a connecting end and a contact end;
wherein the stabilizing member is arranged at one end of the first fixing member, which is in contact with the fan slideway;
wherein the connecting end is configured to connect the stabilizing member and the first securing member;
the stabilizing member is movably connected to the first fixing member so that the stabilizing member can be changed in the direction relative to the slideway, and the contact end can be attached to the fan slideway all the time;
preferably, the stabilizing member comprises:
an arm portion having a stay fixed to a central position of the arm portion;
a foot portion;
wherein the arm portion is connected to the first fixing member by a strut, and;
the arm part can move around the support rod in a vertical plane;
wherein the foot part is hinged at two ends of the arm part;
preferably, the arm part is made of elastic material which can deform under stress;
preferably, the stress of the elastic material which deforms is 4-7 times of the vibration acting force of the fan in normal operation;
preferably, the arm is a rectangular long rod with a through hole, and the through hole is formed in the edge of the long rod and extends to the long edge of the other side of the long rod along the width direction.
The invention has the beneficial effects that the axial flow fan supporting and damping device is provided, the sliding seat and the extension assembly are connected into a whole by arranging the extension assembly which can be connected to the sliding seat of the fan, the first fixing component which fixedly supports the extension assembly on the sliding way of the fan and the fastening assembly which further fixes the extension assembly on the sliding way of the fan, and the first fixing component penetrates through the first assembling hole to fix the extension assembly on the sliding way, so that the whole formed by fixing the extension assembly and the sliding seat does not vibrate downwards in a vertical plane; the fastening assembly is mounted on the extension assembly and is associated with the fan slide so as to secure the entirety of the extension assembly and the slide against upward vibration in a vertical plane. The first fixing member is matched with the fastening assembly, and the whole body formed by the extension assembly and the sliding seat is fixedly supported on the fan slide rail, so that after the air inlet box/diffuser vibrates in work, the vibration cannot be diffused and enhanced, and the working stability of the axial flow fan is improved.
Description of the drawings:
FIG. 1 shows a front view of a support vibration damping device structure from the present invention;
FIG. 2 shows a schematic view of a support vibration damping device installation from the present invention;
FIG. 3 shows a schematic view of an extension assembly from the present invention;
FIG. 4 shows a schematic view of a fastening assembly from the present invention;
FIG. 5 shows a schematic view of a stabilizing member from the present invention;
fig. 6 shows the effect of the stabilizing member from the invention on uneven planes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following embodiments:
example 1:
the utility model provides an axial fan supports damping device which characterized in that includes:
an extension member 1;
a first fixing member 2;
a fastening assembly 3;
the extension assembly 1 comprises a first assembly hole 11, wherein the first assembly hole 11 is arranged in the center of the extension assembly 1 and is matched with the first fixing component 2 in size;
wherein the extension assembly 1 is configured to be coupled to a fan slide 4;
the first fixing member 2 is used for fixedly supporting the extension assembly 1 on a fan slideway 5;
wherein the fastening assembly 3 is mounted on the extension assembly 1 for further fixing the extension assembly 1 on the fan chute 5.
The middle section impeller shell of the axial flow fan needs to be periodically overhauled, four corners of an air inlet box/diffuser of the axial flow fan are connected to a slide rail through a slide seat, the slide rail is fixed on a fan foundation, the fan slide seat comprises a slide seat main body, rollers and other parts, the upper end of the slide seat main body is used for connecting and installing the air inlet box/diffuser, the lower end of the slide seat main body is provided with a cavity used for containing the rollers, the slide seat main body is connected with the rollers, and the air inlet box/diffuser can move when the overhaul needs are achieved through the forward and backward movement of the rollers on the slide rail. The following problems may occur in daily work: 1. the sliding seat and the slideway are not fixed, if abnormal large vibration is generated in the operation of the machine, the machine is forced to stop due to the over-standard vibration; 2. in daily work, the air inlet box, the diffuser and the fan generate vertical vibration which cannot be reduced or eliminated, resonance and amplitude increase can be caused by mutual vibration after the vibration is transmitted to the ground, and the original daily tiny vibration is amplified into abnormal vibration to cause machine halt, so that normal work is influenced; 3. daily vibration is transmitted to the sliding seat body and the roller through the machine, and the contact parts between the sliding seat body and the roller and the slide way are subjected to material abrasion in long-time vibration friction to cause uneven contact surfaces, so that the roller cannot compact the slide way and slightly displaces in vibration; the four corners of the air inlet box/diffuser are not placed smoothly, the heights of the air inlet box/diffuser are different, and the long-term previous working stability is influenced.
The application provides an axial flow fan supporting and damping device, which is characterized in that an extension component which can be connected to a fan sliding seat, a first fixing component which fixedly supports the extension component on the fan sliding channel and a fastening component which further fixes the extension component on the fan sliding channel are arranged, the sliding seat and the extension component are connected into a whole, the sliding seat is supported by the first fixing component, and the heights of different sliding seats at four corners of an air inlet box/diffuser can be finely adjusted, so that the operation problem possibly caused by uneven placement of a machine is avoided, meanwhile, the first fixing component penetrates through a first assembling hole to fix the extension component on the sliding channel, and the whole formed by the fixed extension component and the sliding seat does not vibrate downwards in a vertical plane; the fastening assembly is mounted on the extension assembly and is associated with the fan slide so as to secure the entirety of the extension assembly and the slide against upward vibration in a vertical plane. The first fixing member is matched with the fastening assembly, and the extending assembly and the sliding seat are integrally and fixedly supported on the fan slide rail, so that after the air inlet box/diffuser vibrates in work, the vibration cannot be diffused and enhanced, and the working stability of the axial flow fan is improved.
Preferably, the extension assembly 1 is a rectangular plate, and one end of the rectangular plate is connected with the fan slide 4 by welding.
Preferably, the first fixing member 2 is a bolt, and the first fitting hole is a threaded hole.
In the preferred embodiment, the center of the rectangular plate is provided with a first assembling hole, the first fixing component is a bolt, the bolt is screwed into the threaded hole in the center of the rectangular plate until the bolt tightly abuts against the slide way, and then the bolt is continuously screwed into the threaded hole after abutting against the slide way, so that the whole body formed by the rectangular plate and the slide seat is lifted, namely, the height adjustment of the four-corner slide seat of the air inlet box/diffuser is realized, and the machine placement is smoother; after the extension assembly is matched with the first fixing member to support the sliding base, the whole device cannot move downwards in a vertical plane due to the fact that the bottom surface of the bolt tightly abuts against the sliding way, and the amplitude of downward vibration of the machine during working is greatly reduced. When in maintenance, the air inlet box/diffuser can move on the slide way by loosening the bolts, and if the first fixing member is damaged, the bolts can be directly replaced, so that the maintenance is convenient and the cost is low.
Preferably, the fastening assembly 3 comprises:
a top plate 31 having a long side and a short side, the length of the long side being slightly longer than the length of the extension member 1;
a side plate 32 having an upper end and a lower end, the side plate height 32 being slightly greater than the height of the fan slide 4;
a stopper plate 33;
a second fitting hole 34;
the upper ends of the side plates 32 are fixedly connected to the long sides of the two sides of the top plate 31, and a cavity is formed below the top plate 31;
the limit plate 33 is fixedly connected to one side of the lower end of the side plate 32 facing the cavity;
wherein, the second assembling hole 34 is provided at the center of the top plate 31 and is sized to fit with the first fixing member 2.
In this preferred embodiment, the fastening subassembly comprises roof, curb plate and limiting plate, and the curb plate forms the cavity that can hold extension subassembly and fan slide below the roof, and limiting plate fixed connection forms a door shape shell form structure in the curb plate lower extreme one side towards the cavity. The door-shaped structure can penetrate through the slide way and the extension assembly on the slide way, and the fastening assembly and the extension assembly are fixedly connected through the first fixing member matched with the first assembly hole and the second assembly hole. After the connection is completed, the limiting plate hooks the lower part of the slideway, the device is integrally arranged in the vertical plane and cannot move upwards, and the amplitude of upwards vibration of the machine during working is greatly reduced. The extension assembly, the first fixing component and the fastening assembly are matched with each other, and the up-and-down movement of the device and the whole machine in a vertical plane is limited, so that the vibration amplitude is reduced, and the vibration reduction purpose is achieved.
Preferably, the bolt has a mating locking nut for making the connection more secure.
Example 2:
the fastening assembly further comprises:
a second fixing member 35;
a third fitting hole 36;
wherein the second fixing member 35 is used to further fix the fastening assembly 3 with the extension assembly 1;
the third assembly hole 36 is located on the top plate 31, is not coincident with the second assembly hole 34, and is sized to fit with the second fixing member 35.
Preferably, the second fixing member 35 is a bolt, and the third fitting hole 36 is a screw hole.
In this embodiment, a second fixing member and a third assembling hole are provided, wherein the second fixing member is a bolt, the third assembling hole is a threaded hole, the bolt is screwed into the threaded hole until the bottom surface of the bolt abuts against the surface of the rectangular plate, and the bolt is screwed into the threaded hole after the surface of the rectangular plate abuts against the surface of the rectangular plate, so that the fastening assembly is lifted, the contact between the limiting plate and the slide way is tighter, and the fastening assembly is more difficult to move upwards; meanwhile, the bolts which are used for connecting the fastening assembly and the rectangular plate and tightly abut against the surface of the rectangular plate limit the space of the rectangular plate and the sliding seat which move upwards integrally, double limitation is performed on the upward displacement of the supporting vibration damping device in the vertical direction, and the vibration damping effect of the device is further enhanced. When the air inlet box/diffuser is overhauled, the bolts are loosened to enable the air inlet box/diffuser to move on the slide way, and if the second fixing member is damaged, the bolts can be directly replaced, so that the air inlet box/diffuser is convenient to use and low in cost.
Preferably, the bolt has a mating locking nut for making the connection more secure.
Example 3:
the fastening component 3 comprises two third assembling holes 36, the third assembling holes 36 are symmetrically arranged on two sides of the second assembling hole 34, and the connecting line of the second assembling hole 34 and the third assembling hole 36 is parallel to the long edge of the top plate 31.
After the support vibration damping device and the sliding seat slide way are fixedly locked, when the fan vibrates during operation, the rectangular plate can be simultaneously subjected to acting forces which are applied to the rectangular plate by the first fixing component and the second fixing component and are in opposite directions for vibration damping to keep stability, if the first fixing component and the second fixing component are not properly arranged, the force on the rectangular plate is unbalanced, and the rectangular plate can be deformed and inclined for a long time, so that the effect of the device is influenced.
In this embodiment, two third assembly holes are arranged on two sides of the second assembly hole of the top plate, the second assembly hole is arranged on a connecting line of the third assembly holes, the connecting line is parallel to the long edge of the top plate, namely, the force application point of the second fixing component on the rectangular plate is symmetrically balanced with the force application point of the first fixing component, and the influence of the acting force generated on the fixing component on the rectangular plate during the machine vibration can be effectively counteracted.
Example 4:
the support and vibration damping device further comprises a support member 6;
wherein the supporting members 6 are symmetrically arranged at both sides of the first assembling hole 11;
wherein, one end of the supporting component 6 is fixedly connected below the extension component 1, and the other end is configured to contact and extrude with the fan slideway 5.
In the embodiment, the supporting member is arranged, so that when the extension assembly supports the sliding seat and the machine, the contact surface is increased, the supporting force is dispersed to more contact points, the stress strength of the original single supporting point is reduced, and the requirement on the strength of the first fixing member is reduced; the supporting members are symmetrically arranged, so that the stress on the extension assembly is more uniform. It is appreciated that the support member can be made from a suitable variety of materials, and can have a variety of shapes or configurations, such as a column, an X, a triangle, and the like.
Preferably, the support member 6 further comprises a spacer 61;
wherein the gasket 61 is arranged on the end of the support member 6 in contact with the fan slide 5;
wherein the spacer 61 is made of a slow rebound material.
In the preferred embodiment, a gasket made of slow rebound material is arranged at one end of the supporting member, which is in contact with the slide way, the slow rebound material is deformed into elastic deformation under stress and has good self-recovery capability, because each supporting vibration reduction corresponding to the slide seats on the four corners of the machine needs to adjust the height thereof to swing the machine, when the supporting vibration reduction devices and the slide ways of the slide seats are not locked, the supporting member is positioned between the extension assembly and the slide way, and the gasket is extruded and deformed under pressure; after the supporting vibration damper and the sliding seat slideway are locked, the whole body formed by the sliding seat and the extension assembly is slightly lifted to different degrees, the gasket is self-restored and adjusted to be in a proper shape to ensure tight contact, and the slow-rebound material has certain consumption vibration capability, so that on one hand, the good supporting effect of the supporting component is ensured, and on the other hand, the vibration damping capability of the supporting vibration damper is enhanced.
Example 5:
the support vibration damping device further includes:
a stabilizing member 7 having a connecting end and a contact end;
wherein the stabilizing member 7 is arranged at the end of the first fixing member 2 in contact with the fan chute 5;
wherein the connecting end is configured to connect the stabilizing member 7 with the first fixation member 2;
the stabilizing member 7 is movably connected to the first fixing member 2, so that the stabilizing member 7 can be changed in the direction relative to the slide way 5, and the contact end can be attached to the fan slide way 5 all the time.
First fixed component needs to come the displacement volume of restriction vibration with the slide surface is closely laminated, and the fan exposes work under external environment for a long time, and the slide surface is damaged by the corrosion easily, has the difference in height on different positions, and if first fixed component is the plane only with fan slide contact's one end, it is difficult to complete contact on uneven surface to influence the damping effect.
In this embodiment, by providing the stabilizing member having the connecting end and the contact end, the connecting end is configured to connect the stabilizing member and the first fixing member, the stabilizing member can be changed in a direction opposite to the slide way, so that the contact end is always attached to the fan slide way, and the first fixing member can be in close contact with the slide way, thereby ensuring that the device has a good vibration damping effect.
In a preferred embodiment of the method of the invention,
the stabilizing member 7 comprises:
an arm portion 72 having a stay 71, the stay 71 being fixedly provided at a central position of the arm portion 72;
a foot portion 73;
wherein the arm portion 72 is connected to the first fixing member 2 via a strut 71;
the arm 72 can move around the support rod 71 in a vertical plane;
the leg 73 is hinged to both ends of the arm 72.
In the above preferred embodiment, the stabilizing member comprises an arm portion, a strut and a foot portion, the foot portion is fixedly connected to both ends of the arm portion and contacts with the slideway, and the arm portion can swing up and down in a vertical plane around the strut to adapt to height difference caused by rusting and abrasion of different areas on a certain contact surface.
Example 7:
the arm portion 72 is made of an elastic material deformable by force;
preferably, the stress of the elastic material which deforms is 4-7 times of the vibration force of the fan in normal operation;
the equipment occasionally generates abnormal large vibration, after the vibration is transmitted to the supporting vibration damping device, the existing loosened device can be displaced and deformed under large impact force, the vibration damping effect is greatly reduced, and the normal work can be influenced when the vibration damping device is serious.
In this embodiment the stabilising member arm is made of an elastic material which is itself resiliently deformable, but normal vibrations from the operation of the fan are unable to deform the arm connection end. The stress of the material which deforms is 4-7 times of the vibration force of the fan in normal work, and when abnormal vibration occurs, the connecting end of the arm part can elastically deform to buffer large impact force caused by the abnormal vibration, so that the stable component cannot be influenced, and the stability of the device is enhanced.
Preferably, the arm 72 is a rectangular long bar having a through hole 74, and the through hole 74 is formed at an edge of a long side of the long bar and extends toward the other long side of the long bar in a width direction.
The not hard up of the different degrees that can take place unavoidable in long-time course of operation of each part in fan equipment, support damping device and use the back for a long time, connect fastening effect also to descend, and the intensity of vibration on the fan is strengthened to this kind of not hard up meeting certain degree, therefore equipment need carry out periodic overhaul, nevertheless overhauls often with the month as the cycle, thereby equipment still can receive the influence of strengthening the vibration during this period and the working property descends.
In the preferred embodiment, the long edge of the arm is provided with a through hole, the through hole extends to the long edge of the other side of the long rod along the width direction, a weak area is formed in the central area where the arm is connected with the support rod, the weak area can preferentially deform when receiving non-large impact force, when the equipment parts and the device are loosened, the vibration intensity of the equipment is enhanced during normal work, the area can respond to the deformation, the influence of enhanced vibration on the equipment is relieved, and the equipment can still work in a working state with higher performance in an overhaul period.
In the description of the embodiments of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "inner", "outer", and the like indicate an orientation or positional relationship.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the embodiments of the invention, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the embodiments of the present invention, it should be understood that "-" and "-" indicate the same range as two numerical values, and the range includes the endpoints. For example, "A-B" means a range greater than or equal to A and less than or equal to B. "A to B" means a range of not less than A and not more than B.
In the description of the embodiments of the present invention, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (12)
1. The utility model provides an axial fan supports damping device which characterized in that includes:
an extension assembly;
a first fixing member;
a fastening assembly;
a stabilizing member having a connecting end and a contact end;
the extension assembly comprises a first assembly hole, the first assembly hole is formed in the center of the extension assembly, and the size of the first assembly hole is matched with that of the first fixing component;
wherein the extension assembly is configured to couple to a fan carriage;
the first fixing component is used for fixedly supporting the extension assembly on the fan slideway;
the fastening assembly is arranged on the extension assembly and used for fixing the extension assembly on the fan slide way;
wherein the stabilizing member is arranged at one end of the first fixing member, which is in contact with the fan slideway;
wherein the connecting end is configured to connect the stabilizing member and the first securing member;
the stabilizing member is movably connected to the first fixing member so that the stabilizing member can be changed in the direction relative to the slideway, and the contact end can be attached to the fan slideway all the time;
the stabilizing member includes:
the arm part is provided with a support rod, and the support rod is fixedly arranged at the central position of the arm part;
a foot portion;
wherein the arm portion is connected to the first fixing member by a strut, and;
the arm part can move around the support rod in a vertical plane;
wherein, the foot part is hinged at two ends of the arm part.
2. The axial flow fan support and vibration damping device according to claim 1, wherein: the extension assembly is a rectangular plate, and one end of the rectangular plate is connected with the fan sliding seat through welding.
3. The axial flow fan support and vibration damping device according to claim 1, wherein: the first fixing component is a bolt, and the first assembling hole is a threaded hole.
4. The axial fan support and vibration damping device of claim 1, wherein said fastening assembly comprises:
a top panel having a long side and a short side, the long side having a length slightly greater than the extension assembly length;
the side plate is provided with an upper end and a lower end, and the height of the side plate is slightly larger than that of the fan sliding seat;
a limiting plate;
a second assembly hole;
the upper ends of the side plates are fixedly connected to the long sides of the two sides of the top plate, and a cavity is formed below the top plate;
the limiting plate is fixedly connected to one side, facing the cavity, of the lower end of the side plate;
the second assembling hole is formed in the center of the top plate, and the size of the second assembling hole is matched with that of the first fixing component.
5. The axial fan support and vibration reduction apparatus of claim 4, wherein said fastening assembly further comprises:
a second fixing member;
a third assembly hole;
wherein the second securing member is for further securing the fastening assembly with the extension assembly;
the third assembly hole is located on the top plate, does not coincide with the second assembly hole in position, and is matched with the second fixing component in size.
6. The axial fan support and vibration damping device of claim 5, wherein: the second fixing member is a bolt, and the third assembling hole is a threaded hole.
7. The axial flow fan support and vibration damping device of claim 4, wherein: the fastening assembly comprises two third assembly holes, the third assembly holes are symmetrically arranged on two sides of the second assembly hole, and the connecting line of the second assembly hole and the third assembly hole is parallel to the long edge of the top plate.
8. The axial flow fan support and vibration damping device according to claim 1, wherein:
the support and vibration damping device further comprises a support member;
the supporting members are symmetrically arranged on two sides of the first assembling hole;
one end of the supporting component is fixedly connected below the extension component, and the other end of the supporting component is configured to be in contact with and extruded by the fan slideway.
9. The axial fan support and vibration damping device of claim 8, wherein:
the support member further comprises a spacer;
wherein the gasket is arranged at one end of the supporting member, which is in contact with the fan slideway;
wherein the shim is made of a slow rebound material.
10. The axial flow fan support and vibration damping device according to claim 1, wherein: the arm portions are made of a resilient material deformable by a force.
11. The axial fan support and vibration damping device of claim 10, wherein: the stress of the elastic material which deforms is 4-7 times of the vibration acting force of the fan in normal operation.
12. The axial fan support and vibration damping device of claim 10, wherein: the arm is a rectangular long rod with a through hole, the through hole is formed in the edge of the long rod, and extends to the long edge of the other side of the long rod along the width direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210697891.5A CN114893451B (en) | 2022-06-20 | 2022-06-20 | Axial fan supports damping device |
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| CN202210697891.5A CN114893451B (en) | 2022-06-20 | 2022-06-20 | Axial fan supports damping device |
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| CN114893451A CN114893451A (en) | 2022-08-12 |
| CN114893451B true CN114893451B (en) | 2023-03-24 |
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| CN104533842A (en) * | 2014-11-24 | 2015-04-22 | 天津尼特风机有限公司 | Noise reduction fan |
| CN206268140U (en) * | 2016-11-30 | 2017-06-20 | 内蒙古大唐国际托克托发电有限责任公司 | The vibration absorber of Axial Fan with Adjustable Vanes |
| CN213598264U (en) * | 2020-09-07 | 2021-07-02 | 谢建文 | Oxygenation pump with shock attenuation and function of making an uproar falls |
| CN113386907B (en) * | 2021-07-22 | 2021-11-23 | 江苏科技大学 | Comprehensive vibration damper for container ship lashing bridge |
| CN215256345U (en) * | 2021-07-22 | 2021-12-21 | 无锡速珀利尔科技有限公司 | Turbocharger of double-blade nozzle system |
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