CN219012921U - High-air-quantity single-screw fan - Google Patents

Abstract

The utility model discloses a high-air-quantity single-screw fan which comprises a shell, wherein one side of the shell is fixedly connected with a box body, one side of the inner wall of the shell is rotationally connected with a rotary drum through a bearing, the output end of a motor is rotationally connected with one side of the inner wall of the box body through a bearing, one side of the outer wall of the shell is attached with a filter screen, cavities are formed in two sides of a frame of the filter screen, one side of the motor is provided with an adjusting mechanism, and two sides of the filter screen are provided with fixing mechanisms. This single screw fan of high amount of wind, and pivoted first gear accessible links to each other with the meshing of second gear and drives the integral key shaft and rotate, and the integral key shaft accessible rotary drum drives the blade and rotates and exhaust, and the work accessible bent plate of cylinder drives spline axial rotary drum internal movement this moment, and second gear and first gear separation, and third gear and fourth gear meshing have simultaneously, and then have increased the rotational speed of blade, have solved the speed governing that relies on the motor and have carried out the relative single problem of mode of air regulation.

Description

High-air-quantity single-screw fan

Technical Field

The utility model relates to the technical field of screw fans, in particular to a high-air-quantity single-screw fan.

Background

The fan is a machine which relies on input mechanical energy to raise the pressure of gas and discharge the gas, and is a driven fluid machine. Fans are a custom abbreviation for gas compression and gas conveying machinery in China, and are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and ventilation and air induction of boilers and industrial furnaces; cooling and ventilation in air-conditioning equipment and household appliances, and screw fans are one of them.

The existing single-screw fan is relatively single in adjusting mode by means of speed regulation of a motor, the use requirement cannot be met, meanwhile, a filter screen at an air inlet of the fan is inconvenient to detach, clean and replace, and therefore labor intensity during cleaning is increased.

Disclosure of Invention

The utility model aims to provide a high-air-volume single-screw fan, which solves the problem that the mode of adjusting the air volume by means of speed regulation of a motor in the background art is relatively single.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high amount of wind single screw fan, includes the casing, one side rigid coupling of casing has the box, inner wall one side of casing is rotated through the bearing and is linked to each other has the rotary drum, the motor is installed to the inner chamber bottom of box, the output of motor is rotated through the bearing and is linked to each other in inner wall one side of box, the laminating of outer wall one side of casing has the filter screen, the cavity has all been seted up to the frame both sides of filter screen, one side of motor is equipped with adjustment mechanism, the both sides of filter screen are equipped with fixed establishment.

Preferably, the adjustment mechanism comprises a first gear, the inner wall rigid coupling of the first gear is in output outer wall one side of motor, the top meshing of first gear is connected with the second gear, the inner wall rigid coupling of second gear has the integral key shaft, the outer wall key of integral key shaft is connected in the inner wall of rotary drum, the top of integral key shaft is equipped with the cylinder, the cylinder is installed in outer wall one side of casing, the loose end rigid coupling of cylinder has the bent plate, the bottom of bent plate links to each other in the outer wall of integral key shaft through the bearing rotation, the outer wall one side rigid coupling of integral key shaft has the third gear, the bottom meshing of third gear is connected with the fourth gear, the inner wall rigid coupling of fourth gear is in the output outer wall of motor.

Preferably, the outer wall of the rotary drum is fixedly connected with a plurality of blades.

Preferably, an air outlet is formed in one side of the casing.

Preferably, the fixing mechanism comprises springs, two springs are respectively in clearance fit with inner cavities of the two cavities, one ends of the two springs are respectively abutted against a slide bar, the outer walls of the two slide bars are respectively in clearance fit with inner walls of the two cavities, one ends of the two slide bars are abutted against a ring body, the ring body is fixedly connected to one side of the outer wall of the shell, two pull rods are fixedly connected to one side of the outer wall of the slide bar, and the outer walls of the two pull rods are respectively connected to two sides of a frame of the filter screen in a sliding mode through two through grooves.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use.

This high amount of wind single screw fan, the work of motor can drive first gear rotation, and pivoted first gear accessible links to each other with the meshing of second gear and drives the integral key shaft and rotate, and the integral key shaft accessible rotary drum drives the blade and rotates and exhaust, the work accessible bent plate of cylinder drives spline axial rotary drum internal movement this moment, and second gear and first gear separation, third gear and fourth gear meshing simultaneously, and then increased the rotational speed of blade, the speed governing that has solved relies on the motor carries out the relative singleness problem of mode of air regulation.

The spring can utilize self elasticity to drive the slide bar and remove outside the cavity, and the slide bar can support the inside recess of ring body tightly this moment to can fix the filter screen in one side of casing, when the filter screen is dismantled to needs, the user pulls two pull rods simultaneously, and the slide bar can be separated with the ring body this moment, and then can lift the filter screen off, has solved the filter screen of fan air intake department and has not convenient for dismantle washs and change.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the air outlet, filter screen and blades of FIG. 1;

FIG. 3 is a schematic view of the slider, first gear and drum of FIG. 2;

FIG. 4 is a schematic view of the ring, tie rod and cavity of FIG. 2;

fig. 5 is a schematic view of the vane, drum and housing of fig. 2.

In the figure: 1. the device comprises a shell, 2, a box body, 3, a rotary drum, 4, an adjusting mechanism, 4a1, a first gear, 4a2, a second gear, 4a3, a spline shaft, 4a4, a cylinder, 4a5, a curved plate, 4a6, a third gear, 4a7, a fourth gear, 4b1, a sliding block, 4b2, a sliding groove, 5, a fixing mechanism, 501, a spring, 502, a sliding rod, 503, a ring body, 504, a pull rod, 505, a through groove, 6, a blade, 7, a motor, 8, a filter screen, 9, a cavity, 10 and an air outlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a high amount of wind single screw fan, which comprises a housing 1, one side rigid coupling of casing 1 has box 2, the inner wall one side of casing 1 is connected with rotary drum 3 through the bearing rotation, motor 7 is installed to the inner chamber bottom of box 2, the user can be according to actual demand selection motor 7's model, motor 7's output links to each other in box 2's inner wall one side through the bearing rotation, motor 7 pivoted stability has been increased, filter screen 8 has been laminated to casing 1's outer wall one side, filter screen 8 is regard as the frame with corrosion resistant plate, its inside net that is a plurality of wire establishment, cavity 9 has all been seted up to filter screen 8's frame both sides, motor 7's one side is equipped with adjustment mechanism 4, filter screen 8's both sides are equipped with fixed establishment 5.

Referring to fig. 2 and 3, the adjusting mechanism 4 includes a first gear 4a1, an inner wall of the first gear 4a1 is fixedly connected to one side of an outer wall of an output end of the motor 7, the motor 7 can drive the first gear 4a1 to rotate, a second gear 4a2 is connected to a top of the first gear 4a1 in a meshed manner, a spline shaft 4a3 is fixedly connected to an inner wall of the second gear 4a2, the rotating first gear 4a1 can drive the spline shaft 4a3 to rotate through being meshed with the second gear 4a2, an outer wall of the spline shaft 4a3 is connected to an inner wall of the rotary drum 3 in a keyed manner, the spline shaft 4a3 can drive the blades 6 to rotate through the rotary drum 3 to exhaust air, a cylinder 4a4 is arranged above the spline shaft 4a3, the model SC50-100 is arranged on one side of the outer wall of the casing 1, a movable end of the cylinder 4a4 is fixedly connected with a curved plate 4a5, the bottom of the curved plate 4a5 is rotatably connected to the outer wall of the spline shaft 4a3 through a bearing, the cylinder 4a4 can drive the spline shaft 4a3 to move into the rotary drum 3 through the curved plate 4a5, the second gear 4a2 is separated from the first gear 4a1, one side of the outer wall of the spline shaft 4a3 is fixedly connected with a third gear 4a6, the third gear 4a6 and the first gear 4a1 are identical in size, the bottom of the third gear 4a6 is in meshed connection with a fourth gear 4a7, the second gear 4a2 and the fourth gear 4a7 are identical in size, the sizes of the first gear 4a1 and the third gear 4a6 are smaller than the second gear 4a2 and the fourth gear 4a7, the inner wall of the fourth gear 4a7 is fixedly connected with the outer wall of the output end of the motor 7, at the moment, the third gear 4a6 is meshed with the fourth gear 4a7, the rotating speed of the blade 6 is increased by changing the transmission ratio, the outer wall of the rotary drum 3 is fixedly connected with a plurality of blades 6, the rotation of the blade 6 can drive the rotary drum 3 to rotate, one side of the casing 1 is provided with an air outlet 10, and the air outlet 10 can exhaust outwards;

the work of motor 7 can drive first gear 4a1 and rotate, and the first gear 4a1 of pivoted can drive the integral key shaft 4a3 through the meshing with second gear 4a2 and rotate, and integral key shaft 4a3 accessible rotary drum 3 drives blade 6 and rotates and exhaust, the work of cylinder 4a4 accessible bent plate 4a5 at this moment drives integral key shaft 4a3 and moves to rotary drum 3 in, and second gear 4a2 and first gear 4a1 separate, simultaneously third gear 4a6 and fourth gear 4a7 meshing, and then increased the rotational velocity of blade 6, solved the speed governing that relies on the motor carries out the mode of air regulation and is single relatively problem.

Referring to fig. 2 and 4, the fixing mechanism 5 includes springs 501, two springs 501 are respectively and clearance-fit with the inner cavities of two cavities 9, the elastic coefficients of the two springs 501 are the same, one ends of the two springs 501 are respectively and tightly supported by slide bars 502, the outer walls of the two slide bars 502 are respectively and clearance-fit with the inner walls of the two cavities 9, the slide bars 502 can longitudinally move in the inner cavities of the cavities 9, one ends of the two slide bars 502 are tightly supported by ring bodies 503, the ring bodies 503 are fixedly connected with one side of the outer walls of the shell 1, the springs 501 can drive the slide bars 502 to move outside the cavities 9 by utilizing the elasticity of the springs, at the moment, the slide bars 502 can tightly support grooves in the ring bodies 503, so that a filter screen 8 can be fixed at one side of the shell 1, one side of the outer walls of the two slide bars 502 is fixedly connected with pull bars 504, the outer walls of the two pull bars 504 are respectively and slidably connected with two sides of a frame of the filter screen 8, and a user can drag the slide bars 502 to move through the pull bars 504;

the spring 501 can drive the slide bar 502 to move outwards of the cavity 9 by utilizing the elasticity of the spring, at the moment, the slide bar 502 can tightly prop up the groove in the ring body 503, so that the filter screen 8 can be fixed on one side of the casing 1, when the filter screen 8 needs to be disassembled, a user pulls two pull rods 504 at the same time, at the moment, the slide bar 502 can be separated from the ring body 503, and then the filter screen 8 can be disassembled, so that the problem that the filter screen at the air inlet of the fan is inconvenient to disassemble, clean and replace is solved.

Principle of operation

When the high-air-volume single-screw fan is used, the motor 7 can drive the first gear 4a1 to rotate, the rotating first gear 4a1 can drive the spline shaft 4a3 to rotate through being meshed with the second gear 4a2, the spline shaft 4a3 can drive the blade 6 to rotate through the rotary drum 3 to exhaust air, at the moment, the air cylinder 4a4 can drive the spline shaft 4a3 to move into the rotary drum 3 through the curved plate 4a5, the second gear 4a2 is separated from the first gear 4a1, meanwhile, the third gear 4a6 is meshed with the fourth gear 4a7, the rotating speed of the blade 6 is further increased, the spring 501 can drive the slide rod 502 to move out of the cavity 9 through the elasticity of the spring 501, at the moment, the slide rod 502 can tightly prop up the groove inside the ring body 503, so that the filter screen 8 can be fixed on one side of the machine shell 1, when the filter screen 8 needs to be dismounted, at the moment, the user can separate from the ring body 503, the filter screen 8 can be dismounted, and the problem of inconvenient dismounting and cleaning at the air inlet of the fan is solved.

Example 2

Referring to fig. 2 and 3, the present utility model provides a technical solution: the high-air-volume single-screw fan comprises an adjusting mechanism 4, wherein the adjusting mechanism further comprises a sliding block 4b1 and a sliding groove 4b2, the sliding block 4b1 is fixedly connected to the top of the curved plate 4a5, and the outer wall of the sliding block 4b1 is in sliding clamping connection with one side of the top of the inner cavity of the box body 2 through the sliding groove 4b 2.

The movement of the curved plate 4a5 can be stabilized by the sliding limit structure formed by the sliding block 4b1 and the sliding groove 4b 2.

Principle of operation

When the high-air-volume single-screw fan is used, the cylinder 4a4 works to drive the curved plate 4a5 to transversely move, and the stability of movement of the spline shaft 4a3 can be increased through the sliding limiting structure formed by the sliding block 4b1 and the sliding groove 4b2, so that the meshing among a plurality of gears is stabilized.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a high amount of wind single screw fan, includes casing (1), its characterized in that: one side of the shell (1) is fixedly connected with a box body (2), one side of the inner wall of the shell (1) is connected with a rotary drum (3) through bearing rotation, a motor (7) is installed at the bottom of an inner cavity of the box body (2), the output end of the motor (7) is connected to one side of the inner wall of the box body (2) through bearing rotation, a filter screen (8) is attached to one side of the outer wall of the shell (1), cavities (9) are formed in two sides of a frame of the filter screen (8), an adjusting mechanism (4) is arranged on one side of the motor (7), and fixing mechanisms (5) are arranged on two sides of the filter screen (8);

the fixing mechanism (5) comprises springs (501), two springs (501) are in clearance fit with inner cavities of two cavities (9) respectively, two sliding rods (502) are abutted against one ends of the springs (501), two outer walls of the sliding rods (502) are in clearance fit with inner walls of the two cavities (9) respectively, two ring bodies (503) are abutted against one ends of the sliding rods (502), the ring bodies (503) are fixedly connected to one side of the outer wall of the casing (1), pull rods (504) are fixedly connected to one side of the outer wall of the sliding rods (502), and the outer walls of the pull rods (504) are connected to two sides of a frame of the filter screen (8) in a sliding mode respectively through two through grooves (505).

2. The high air volume single screw fan of claim 1, wherein: the utility model provides an adjusting mechanism (4) including first gear (4 a 1), the inner wall rigid coupling of first gear (4 a 1) is in output outer wall one side of motor (7), the top meshing of first gear (4 a 1) is connected with second gear (4 a 2), the inner wall rigid coupling of second gear (4 a 2) has spline shaft (4 a 3), the outer wall key of spline shaft (4 a 3) is connected in the inner wall of rotary drum (3), the top of spline shaft (4 a 3) is equipped with cylinder (4 a 4), cylinder (4 a 4) are installed in outer wall one side of casing (1), the loose end rigid coupling of cylinder (4 a 4) has bent board (4 a 5), the bottom of bent board (4 a 5) is through the outer wall of bearing rotation link to each other in spline shaft (4 a 3), the outer wall one side rigid coupling of spline shaft (4 a 3) has third gear (4 a 6), the bottom meshing of third gear (4 a 6) is connected with fourth gear (4 a 7), the outer wall rigid coupling of fourth gear (7) is held in the output of fourth gear (7).

3. The high air volume single screw fan of claim 1, wherein: the outer wall of the rotary drum (3) is fixedly connected with a plurality of blades (6).

4. The high air volume single screw fan of claim 1, wherein: an air outlet (10) is formed in one side of the shell (1).

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