CN213392768U

CN213392768U - Centrifugal fan shock-absorbing structure

Info

Publication number: CN213392768U
Application number: CN202021810060.7U
Authority: CN
Inventors: 周宏伟; 张余洁; 谢社友; 蒋海锋
Original assignee: Fengfengjia Fan Shanghai Co ltd
Current assignee: Fengfengjia Fan Shanghai Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-06-08
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a centrifugal fan shock-absorbing structure relates to the shock-absorbing structure field, and is great to current centrifugal fan vibrations, causes the problem that has great noise reduction travelling comfort and life, now proposes following scheme, and it includes base carriage, motor, protection casing, radiating wheel, casing, impeller, intake stack, the last inner wall fixedly connected with bracing piece of base carriage, the first supporting station of lower extreme fixedly connected with of bracing piece, the below of first supporting station is provided with the bottom plate, the up end fixedly connected with second brace table of bottom plate, first spacing groove has all been seted up to the left and right both sides of first supporting station, be provided with first T type slide bar and the first spring of fixedly connected with between the inner wall of first spacing groove in the first spacing inslot. The device has the characteristics of ingenious structure, low cost, effective reduction of vibration of the centrifugal ventilator during use, reduced noise and prolonged service life.

Description

Centrifugal fan shock-absorbing structure

Technical Field

The utility model relates to a shock-absorbing structure field especially relates to centrifugal fan shock-absorbing structure.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

But current centrifugal fan has the rotation with the motor at specific in-process of using for causing vibrations, and vibrations also are the main source of noise, and too big not only influence the comfort level and vibrations will reduce the stability of each component connection of centrifugal fan and then reduce its life simultaneously. Therefore, the centrifugal fan damping structure is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a centrifugal fan shock-absorbing structure, it is great to have solved current centrifugal fan vibrations, causes the problem that has great noise reduction travelling comfort and life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the damping structure of the centrifugal fan comprises a base supporting frame, a motor, a protective cover, a heat dissipation wheel, a machine shell, an impeller and an air inlet pipeline, the upper inner wall of the base supporting frame is fixedly connected with a supporting rod, the lower end of the supporting rod is fixedly connected with a first supporting platform, a bottom plate is arranged below the first supporting platform, the upper end surface of the bottom plate is fixedly connected with a second supporting platform, the left side and the right side of the first supporting platform are both provided with a first limiting groove, a first T-shaped sliding rod is arranged in the first limiting groove, a first spring is fixedly connected between the first T-shaped sliding rod and the inner wall of the first limiting groove, second limiting grooves are formed in the left side and the right side of the second supporting table, a second T-shaped sliding rod is arranged in each second limiting groove, a second tension spring is fixedly connected between the second T-shaped sliding rod and the inner wall of each second limiting groove, and a supporting rotating plate is rotatably connected between the first T-shaped sliding rod and the second T-shaped sliding rod.

Preferably, the motor is fixedly installed on the upper end face of the base supporting frame, the rear side of the motor is fixedly connected with a protective cover, the protective cover is fixedly connected to the output end of the rear side of the motor and is arranged in the protective cover, the rear side of the protective cover is fixedly connected with a machine shell, and the output end of the impeller fixedly installed on the rear side of the motor is arranged in the machine shell.

Preferably, the impeller is arranged on the rear side of the heat dissipation wheel, the first support table and the second support table are equal in width, and the first support table is short in length and the second support table.

Preferably, the T-shaped ends of the first T-shaped slide bars are slidably connected in the first limiting grooves on one side of each T-shaped slide bar, a first spring is fixedly connected between the T-shaped end and the inner wall of the first limiting groove, and the other ends of the T-shaped slide bars extend outside the first limiting grooves.

Preferably, the T-shaped end of the second T-shaped slide bar is slidably connected in the second limiting groove on one side of the second T-shaped slide bar, a second tension spring is fixedly connected between the end and the inner wall of the second limiting groove, and the other end of the second T-shaped slide bar extends outside the second limiting groove.

Preferably, the upper end and the lower end of the supporting rotating plate on the left side and the right side are respectively and rotatably connected with the extending ends of the first T-shaped sliding rod and the second T-shaped sliding rod on one side of the supporting rotating plate through pin shafts.

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

through the base supporting frame, the motor, the protective cover, the heat dissipation wheel, the machine shell, the impeller, the air inlet pipeline, the supporting rod, the first supporting platform, the bottom plate, the second supporting platform, the first limiting groove, the first T-shaped slide rod, the first spring, the second limiting groove, the second T-shaped slide rod, the second tension spring and the supporting rotating plate, after the motor is started in the specific use process, the device drives the heat dissipation wheel and the impeller to rotate to generate vibration, so that the base supporting frame can rock, because the upper inner wall of the base supporting frame is fixedly connected with the first supporting platform through the supporting rod, the bottom plate is arranged below the base supporting frame, the second supporting platform is fixedly connected with the upper end surface of the bottom plate, because the first T-shaped slide rod and the second T-shaped slide rod are respectively arranged in the first supporting platform and the second supporting platform in a sliding manner, and the supporting rotating plate is connected between the upper and lower two first T-shaped slide rods and the second T-shaped slide rods on the same, and then under the effect of first spring and second extension spring, when the base carriage reciprocated vibrations, will rotate first supporting bench and move down, and then drive the support bull stick rotation of left and right sides, compress first spring and tensile second extension spring respectively, and then will effectual reduction vibrations under the elastic force effect of first spring and second extension spring.

Make this device have that the structure is ingenious, with low costs, and the effectual vibrations that have reduced centrifugal fan when using, the noise that reduces and the characteristics that have improved life.

Drawings

Fig. 1 is a sectional view of the structure of the damping structure of the centrifugal fan of the present invention.

Fig. 2 is the utility model discloses a centrifugal fan shock-absorbing structure's a section view of looking sideways at the structure.

Fig. 3 is a cross-sectional view of the base supporting frame of the damping structure of the centrifugal fan of the present invention.

Fig. 4 is a cross-sectional view of the structure of the motor of the damping structure of the centrifugal fan of the present invention.

Reference numbers in the figures: the device comprises a base supporting frame 1, a motor 2, a protective cover 3, a heat dissipation wheel 4, a machine shell 5, an impeller 6, an air inlet pipeline 7, a supporting rod 8, a first supporting table 9, a bottom plate 10, a second supporting table 11, a first limiting groove 12, a first T-shaped sliding rod 13, a first spring 14, a second limiting groove 15, a second T-shaped sliding rod 16, a second tension spring 17 and a supporting rotating plate 18.

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.

Referring to fig. 1-4, the damping structure of the centrifugal fan comprises a base support frame 1, a motor 2, a protective cover 3, a heat dissipation wheel 4, a casing 5, an impeller 6 and an air inlet duct 7, and is characterized in that a support rod 8 is fixedly connected to the upper inner wall of the base support frame 1, a first support platform 9 is fixedly connected to the lower end of the support rod 8, a bottom plate 10 is arranged below the first support platform 9, a second support platform 11 is fixedly connected to the upper end surface of the bottom plate 10, first limit grooves 12 are respectively formed on the left side and the right side of the first support platform 9, a first T-shaped slide rod 13 is arranged in the first limit groove 12, a first spring 14 is fixedly connected between the first T-shaped slide rod 13 and the inner wall of the first limit groove 12, second limit grooves 15 are respectively formed on the left side and the right side of the second support platform 11, a second T-shaped slide rod 16 is arranged in the second limit groove 15, and a second tension spring 17 is fixedly connected between the second T-shaped, a supporting rotating plate 18 is rotatably connected between the first T-shaped sliding rod 13 and the second T-shaped sliding rod 16.

In this embodiment, the motor 2 is fixedly installed on the upper end face of the base support frame 1, the rear side of the motor 2 is fixedly connected with the protective cover 3, the protective cover 3 is fixedly connected with the output end of the rear side of the motor 2 and is arranged in the protective cover 3, the rear side of the protective cover 3 is fixedly connected with the casing 5, and the casing 5 is internally provided with the output end of the impeller 6 which is fixedly installed on the rear side of the motor 2.

In the present embodiment, the impeller 6 is provided on the rear side of the heat dissipation wheel 4, the first support base 9 and the second support base 11 have the same width, and the first support base 9 is shorter than the second support base 11.

In this embodiment, the T-shaped ends of the first T-shaped sliding rods 13 are slidably connected in the first limiting grooves 12 on one side, the first springs 14 are fixedly connected between the T-shaped ends and the inner walls of the first limiting grooves 12, and the other ends of the T-shaped sliding rods 13 extend outside the first limiting grooves 12.

In this embodiment, the T-shaped ends of the second T-shaped slide bars 16 are slidably connected in the second limiting grooves 15 on one side, a second tension spring 17 is fixedly connected between the T-shaped ends and the inner walls of the second limiting grooves 15, and the other ends of the second T-shaped slide bars 16 extend outside the second limiting grooves 15.

In this embodiment, the upper and lower ends of the supporting rotating plate 18 on the left and right sides are respectively rotatably connected to the extending ends of the first T-shaped slide bar 13 and the second T-shaped slide bar 16 on their respective sides by the pin shafts, and the pin shaft joints are sealed and filled with rubber gaskets to prevent additional loosening and shaking.

The working principle is as follows: when in use, after the motor 2 is started in a specific use process, the motor drives the heat dissipation wheel 4 and the impeller 6 to rotate, so that vibration is generated, the base support frame 1 can rock, the first support platform 9 is fixedly connected to the upper inner wall of the base support frame 1 through the support rod 8, the bottom plate 10 is arranged below the base support frame 1, the upper end face of the bottom plate 10 is fixedly connected with the second support platform 11, the first T-shaped slide bar 13 and the second T-shaped slide bar 16 are respectively connected in the first support platform 9 and the second support platform 11 in a sliding manner, the first limiting groove 12 and the second limiting groove 15 are respectively arranged on the left side and the right side, the first spring 14 is fixedly connected between the first T-shaped slide bar 13 and the inner wall of the first limiting groove 12, and the second tension spring 17 is fixedly connected between the second T-shaped slide bar 16 and the inner wall of the second limiting groove 15, and a supporting rotating plate 18 is rotatably connected between the upper and lower first T-shaped sliding rods 13 and the second T-shaped sliding rods 16 on the left and right sides, so that under the action of the first spring 14 and the second tension spring 17, when the base supporting frame 1 moves up and down to vibrate, the first supporting table 11 is rotated to move down, the supporting rotating rods 18 on the left and right sides are driven to rotate, the first spring 14 is compressed and the second tension spring 17 is stretched respectively, and vibration is effectively reduced under the elastic force action of the first spring 14 and the second tension spring 17.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Centrifugal fan shock-absorbing structure, including base carriage (1), motor (2), protection casing (3), heat dissipation wheel (4), casing (5), impeller (6), intake stack (7), its characterized in that, the last inner wall fixedly connected with bracing piece (8) of base carriage (1), the first supporting station (9) of lower extreme fixedly connected with of bracing piece (8), the below of first supporting station (9) is provided with bottom plate (10), the up end fixedly connected with second supporting station (11) of bottom plate (10), first spacing groove (12) have all been seted up to the left and right both sides of first supporting station (9), be provided with first T type slide bar (13) and fixedly connected with first spring (14) between the inner wall of first T type slide bar (13) and first spacing groove (12) in first spacing groove (12), the left side of second supporting station (11), Second spacing groove (15) have all been seted up to the right side both sides, fixedly connected with second extension spring (17) between the inner wall that is provided with second T type slide bar (16) and second spacing groove (15) in second spacing groove (15), it changes board (18) to rotate to be connected with support between first T type slide bar (13) and second T type slide bar (16).

2. The damping structure of the centrifugal fan according to claim 1, wherein the motor (2) is fixedly mounted on the upper end face of the base supporting frame (1), the rear side of the motor (2) is fixedly connected with a protective cover (3) and the protective cover (3) is fixedly connected to the output end of the rear side of the motor (2) and is arranged in the protective cover (3), the rear side of the protective cover (3) is fixedly connected with a casing (5), and an output end of an impeller (6) is fixedly mounted on the rear side of the motor (2) and is arranged in the casing (5).

3. The centrifugal fan shock-absorbing structure according to claim 1 or 2, wherein the impeller (6) is disposed at the rear side of the heat dissipation wheel (4), the first support platform (9) and the second support platform (11) have the same width, and the first support platform (9) has a shorter length than the second support platform (11).

4. The damping structure of the centrifugal fan as claimed in claim 1, wherein the T-shaped ends of the first T-shaped sliding rods (13) are slidably connected in the first limiting grooves (12) on one side of each T-shaped sliding rod, a first spring (14) is fixedly connected between the T-shaped ends and the inner walls of the first limiting grooves (12), and the other ends of the T-shaped sliding rods (13) extend outside the first limiting grooves (12).

5. The damping structure of the centrifugal fan as claimed in claim 1, wherein the T-shaped ends of the second T-shaped sliding rods (16) are slidably connected in the second limiting grooves (15) on one side of each T-shaped sliding rod, a second tension spring (17) is fixedly connected between the T-shaped ends and the inner walls of the second limiting grooves (15), and the other ends of the second T-shaped sliding rods (16) extend outside the second limiting grooves (15).

6. The damping structure of the centrifugal fan according to claim 1, wherein the upper and lower ends of the supporting rotary plate (18) at the left and right sides are rotatably connected to the extending ends of the first T-shaped slide bar (13) and the second T-shaped slide bar (16) at the respective sides through pin shafts, respectively.