CN215292952U - Vibration-damping draught fan with heat insulation plate - Google Patents

Abstract

The utility model discloses a take damping formula draught fan of heat insulating board, including motor cover, sliding cover plate, nested piece and hollow groove, the inside bottom fixedly connected with heat insulating plate body of motor cover, and the outside sliding connection of motor cover has the sliding cover plate, servo motor is installed on heat insulating plate body's top, and servo motor's bottom swing joint has the flabellum, the equal fixedly connected with nested piece in both ends of the outside both sides of sliding cover plate, and one side swing joint of nested piece has the filter screen, the equal fixedly connected with link in both sides of filter screen. The utility model discloses a hollow groove that sets up in the inside both sides of motor cover, draught fan during operation when servo motor drives the flabellum and rotates, wind-force can make the sliding cover plate reciprocate, produces the vibration, and the sliding cover plate can promote the sliding block through branch and slide in hollow inslot portion this moment to make the sliding block can extrude the spring, then the effort that the spring produced can provide the damping effect for the sliding cover plate, then avoided the draught fan to produce great noise in the work.

Description

Vibration-damping draught fan with heat insulation plate

Technical Field

The utility model relates to a draught fan technical field specifically is a take damping formula draught fan of heat insulating board.

Background

Draught fan mainly used industrial waste gas's ventilation and induced air, the draught fan rotates through the impeller and produces the negative pressure, and then follow the equipment of system extraction air, the theory of operation of draught fan is the same basically with turbocompressor, only because the gas velocity of flow is lower, pressure variation is little, generally need not consider the change of gaseous specific volume, handles as incompressible fluid gas promptly, and current draught fan still has many problems in the use, and specific problem is as follows:

1. in the use process of the existing induced draft fan, external dust easily enters the inner part of the fan blade transmission shaft disc, so that the service life of the induced draft fan is influenced;

2. the existing induced draft fan has no heat insulation structure in the use process, and heat can be discharged together through gas;

3. the existing induced draft fan has no vibration damping structure in the using process, and can generate larger noise in work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take damping formula draught fan of heat insulating board to outside dust that proposes in solving above-mentioned background art gets into flabellum transmission reel easily inside, does not have thermal-insulated structure, can produce great noise scheduling problem in the work.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take damping formula draught fan of heat insulating board, includes motor cover, sliding cover plate, cover piece and hollow groove, the inside bottom fixedly connected with heat insulating plate body of motor cover, and the outside sliding connection of motor cover has the sliding cover plate, servo motor is installed on the top of heat insulating plate body, and servo motor's bottom swing joint has the flabellum, the inside both sides of motor cover all are provided with hollow groove, and the inside top fixedly connected with spring of hollow groove, the equal fixedly connected with cover piece in both ends of the outside both sides of sliding cover plate, and one side swing joint of cover piece has the filter screen, the both sides all fixedly connected with link of filter screen.

Preferably, the top end inside the heat insulation plate body is provided with a first aluminum silicate refractory fiber layer, the bottom end of the first aluminum silicate refractory fiber layer is fixedly connected with an air interlayer, the bottom end of the air interlayer is provided with a second aluminum silicate refractory fiber layer, and the bottom end of the second aluminum silicate refractory fiber layer is provided with a glass wool layer.

Preferably, a through groove is formed in the middle of two sides of the sliding cover plate, and an air outlet is formed in the bottom end of the sliding cover plate.

Preferably, both ends of one side of the sleeve block are fixedly connected with fixing nuts, and the inside of each fixing nut is movably connected with a limiting bolt.

Preferably, one side fixedly connected with connecting block of link, and the inside one side of connecting block is provided with the jack.

Preferably, the bottom sliding connection of spring has the sliding block, and one side fixedly connected with branch of sliding block.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) this take damping formula draught fan of heat insulating board, filter screen through the one side swing joint that leads to the groove, the filter screen can drive inside the connecting block card income cover piece of link one side, make the filter screen can keep off in the one side that leads to the groove, can rotate spacing bolt in fixation nut inside this moment, then spacing bolt can be at fixation nut inside removal, and inside the insertion hole, thereby realize the fixed mounting to the filter screen, then external dust can be filtered by the filter screen, inside having avoided the dust to get into flabellum transmission reel, influence its life.

(2) This take damping formula draught fan of heat insulating board, through the heat insulating plate body at the inside bottom fixed connection of motor cover, the cotton layer of glass can completely cut off most heat that servo motor produced, the heat of loss blocks the reflection through first aluminium silicate refractory fiber layer, air interlayer and second aluminium silicate refractory fiber layer, reaches very good heat-resisting effect, has reduced the heat and has discharged, inside the heat entering gas of having avoided the motor to produce, influences the result of use of draught fan.

(3) This take damping formula draught fan of heat insulating board, through the hollow groove that sets up in the inside both sides of motor cover, draught fan during operation when servo motor drives the flabellum rotation, wind-force can make the sliding cover plate reciprocate, produces the vibration, the sliding cover plate can promote the sliding block through branch and slide in hollow inslot portion this moment to make the sliding block can extrude the spring, then the effort that the spring produced can provide the damping effect for the sliding cover plate, then avoided the draught fan to produce great noise in the work.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is a schematic top view of the nest block of the present invention;

FIG. 4 is a schematic sectional view of the heat insulation plate of the present invention;

fig. 5 is an enlarged schematic structural diagram of a in fig. 1 according to the present invention.

In the figure: 1. a motor cover; 101. a servo motor; 102. a fan blade; 2. a heat insulation panel body; 201. a first alumina silicate refractory fiber layer; 202. an air interlayer; 203. a second alumina silicate refractory fiber layer; 204. a glass wool layer; 3. a sliding cover plate; 301. a through groove; 302. an air outlet; 4. sleeving blocks; 401. fixing a nut; 402. a limit bolt; 5. filtering with a screen; 501. connecting blocks; 502. a connecting frame; 503. a jack; 6. a hollow groove; 601. a spring; 602. a slider; 603. a support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: a vibration reduction type draught fan with a heat insulation plate comprises a motor cover 1, a sliding cover plate 3, a sleeve block 4 and a hollow groove 6, wherein the bottom end inside the motor cover 1 is fixedly connected with a heat insulation plate body 2, the top end inside the heat insulation plate body 2 is provided with a first aluminum silicate refractory fiber layer 201, the bottom end of the first aluminum silicate refractory fiber layer 201 is fixedly connected with an air interlayer 202, the bottom end of the air interlayer 202 is provided with a second aluminum silicate refractory fiber layer 203, the bottom end of the second aluminum silicate refractory fiber layer 203 is provided with a glass wool layer 204, heat is blocked and reflected through the first aluminum silicate refractory fiber layer 201, the air interlayer 202 and the second aluminum silicate refractory fiber layer 203, a good heat blocking effect is achieved, heat discharge is reduced, and the phenomenon that heat generated by a motor enters the inside gas to influence the use effect of the draught fan is avoided;

the outer part of the motor cover 1 is connected with a sliding cover plate 3 in a sliding mode, through grooves 301 are formed in the middle positions of two sides of the sliding cover plate 3, an air outlet 302 is formed in the bottom end of the sliding cover plate 3, a servo motor 101 is installed at the top end of a heat insulation plate body 2, fan blades 102 are movably connected to the bottom end of the servo motor 101, hollow grooves 6 are formed in two sides of the inner part of the motor cover 1, a spring 601 is fixedly connected to the top end of the inner part of each hollow groove 6, a sliding block 602 is connected to the bottom end of the spring 601 in a sliding mode, a supporting rod 603 is fixedly connected to one side of the sliding block 602, acting force generated by the spring 601 can provide a vibration damping effect for the sliding cover plate 3, and therefore large noise generated in the operation of an induced draft fan is avoided;

the two ends of the two sides of the outer part of the sliding cover plate 3 are fixedly connected with sleeve blocks 4, the two ends of one side of each sleeve block 4 are fixedly connected with fixing nuts 401, the inner parts of the fixing nuts 401 are movably connected with limiting bolts 402, the limiting bolts 402 can move in the fixing nuts 401 and are inserted into the insertion holes 503, and therefore the filter screen 5 is fixedly installed;

one side swing joint of nested piece 4 has filter screen 5, and the both sides of filter screen 5 are all fixedly connected with link 502, one side fixedly connected with connecting block 501 of link 502, and the inside one side of connecting block 501 is provided with jack 503, and external dust can be filtered by filter screen 5, has avoided the dust to get into inside the transmission reel of flabellum 102, influences its life.

The working principle is as follows: when the fan is used, the filter screen 5 can drive the connecting block 501 on one side of the connecting frame 502 to be clamped into the sleeve block 4, so that the filter screen 5 can be blocked on one side of the through groove 301, the limiting bolt 402 can be rotated in the fixing nut 401 at the moment, the limiting bolt 402 can move in the fixing nut 401 and be inserted into the jack 503, thereby realizing the fixed installation of the filter screen 5, external dust can be filtered by the filter screen 5, the dust is prevented from entering the transmission shaft disc of the fan blade 102 to influence the service life of the fan blade, the glass wool layer 204 can isolate most heat generated by the servo motor 101, the dissipated heat is blocked and reflected by the first aluminum silicate refractory fiber layer 201, the air interlayer 202 and the second aluminum silicate refractory fiber layer 203, a very good heat blocking effect is achieved, the heat is reduced to be discharged, the heat generated by the motor is prevented from entering the inside of gas to influence the use effect of the induced draft fan, when the servo motor 101 drives the fan blade 102 to rotate, the induced draft fan works, wind power can make the sliding cover plate 3 move up and down, generate vibration, the sliding cover plate 3 can push the sliding block 602 to slide in the hollow groove 6 through the supporting rod 603 at the moment, and make the sliding block 602 can extrude the spring 601, then the effort that the spring 601 produced can provide the damping effect for the sliding cover plate 3, then has avoided the induced draft fan to produce great noise in the work.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a take damping formula draught fan of heat insulating board, includes motor cover (1), slide cover plate (3), collets (4) and hollow groove (6), its characterized in that: the utility model discloses a motor cover, including motor cover (1), motor cover, servo motor (101) and servo motor (101), the inside bottom fixedly connected with heat insulating plate body (2) of motor cover (1), and the outside sliding connection of motor cover (1) has sliding cover plate (3), servo motor (101) are installed on the top of heat insulating plate body (2), and servo motor's (101) bottom swing joint has flabellum (102), the inside both sides of motor cover (1) all are provided with hollow groove (6), and inside top fixedly connected with spring (601) of hollow groove (6), sliding cover plate (3) outside both sides all fixedly connected with nested piece (4), and one side swing joint of nested piece (4) has filter screen (5), the both sides all fixedly connected with link (502) of filter screen (5).

2. A vibration damping induced draft fan with a heat insulating plate according to claim 1, wherein: the heat insulation plate is characterized in that a first aluminum silicate refractory fiber layer (201) is arranged at the top end inside the heat insulation plate body (2), an air interlayer (202) is fixedly connected to the bottom end of the first aluminum silicate refractory fiber layer (201), a second aluminum silicate refractory fiber layer (203) is arranged at the bottom end of the air interlayer (202), and a glass wool layer (204) is arranged at the bottom end of the second aluminum silicate refractory fiber layer (203).

3. A vibration damping induced draft fan with a heat insulating plate according to claim 1, wherein: the middle positions of two sides of the sliding cover plate (3) are provided with through grooves (301), and the bottom end of the sliding cover plate (3) is provided with an air outlet (302).

4. A vibration damping induced draft fan with a heat insulating plate according to claim 1, wherein: both ends of one side of the sleeve block (4) are fixedly connected with fixing nuts (401), and the inside of each fixing nut (401) is movably connected with a limiting bolt (402).

5. A vibration damping induced draft fan with a heat insulating plate according to claim 1, wherein: one side fixedly connected with connecting block (501) of link (502), and the inside one side of connecting block (501) is provided with jack (503).

6. A vibration damping induced draft fan with a heat insulating plate according to claim 1, wherein: the bottom sliding connection of spring (601) has sliding block (602), and one side fixedly connected with branch (603) of sliding block (602).

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