Industrial centrifugal fan with vibration reduction structure

Abstract

The industrial centrifugal fan with the vibration reduction structure comprises a vibration reduction seat, the top of the vibration reduction seat is connected with a supporting seat in a sliding mode, the top end of the supporting seat is provided with a shell body, the two sides of the bottom end of the supporting seat are connected with first connecting plates, and the two sides of the bottom end of each first connecting plate are connected with first hinge seats. Second connecting plates are connected to the two sides of the inner wall of the bottom end of the damping base, second hinge bases are slidably connected to the two sides of the top end of each second connecting plate, a damping plate is hinged between the first hinge bases and the second hinge bases, a vertical plate is connected to the middle of the top end of each second connecting plate, and dampers are arranged between the vertical plates and the second hinge bases. The first hinge seat is matched with the second hinge seat, so that the second hinge seat moves when the industrial centrifugal fan vibrates, and the vibration of the industrial centrifugal fan is buffered through the matching of the damper and the vertical plate, so that the damping effect is achieved, the centrifugal fan is protected, and the service life of a shell of the centrifugal fan is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial centrifugal fans, in particular to an industrial centrifugal fan with a vibration reduction structure. Background Art

[0002] Industrial centrifugal fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and air intake of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and conveying of grains; inflation and propulsion of wind tunnel wind sources and hovercraft, etc.

[0003] Among them, the "centrifugal fan with a protective structure" disclosed in the application number "CN202321717484.2" is also an increasingly mature technology, including a centrifugal fan housing, an air outlet duct and three servo motors. The back of the centrifugal fan housing is fixedly installed with the three servo motors through a bracket, and the output end of the three servo motors is fixedly installed with a transmission coupling, which is connected to the fan blades inside the centrifugal fan housing. The air outlet duct is arranged at the air outlet of the centrifugal fan housing, and a circular connecting cover is fixedly installed at the top of the air outlet duct, and a pipe connecting sleeve is fixedly installed at the top of the circular connecting cover, and an electric heating net is installed inside the pipe connecting sleeve. A protective structure is fixedly installed in the middle of the front of the centrifugal fan housing. The utility model provides a dustproof protective cover, a non-woven fabric baffle and an efficient The filter screen and activated carbon filter screen can play a good role in protecting the centrifugal fan and prevent the entry of dust. They have multi-level protection effects, can prevent the entry of dust with different particle diameters, and are easy to use. After further retrieval, the "centrifugal fan housing" disclosed in the application number "CN201921588139.7" includes a housing, a volute, a flange, and a protective cover. The volute includes a volute tongue and an outer shell. Volute inserts are provided at both ends of the volute tongue, and a volute jack is provided at the position corresponding to the outer shell and the volute insert. The housing includes a top plate, a bottom plate, a right first sealing plate, a right second sealing plate, a back plate and a bearing seat bracket. The housing has an air outlet, and the left side of the housing air outlet is an air inlet. The flange and the openings of the volute are connected to the air outlet of the housing, and the protective cover is installed on the bearing seat bracket. The centrifugal fan casing of the utility model does not require welding and has a good sealing effect. The cross beams required for the casing are all formed integrally with the top plate or the top plate, and the vertical beams are all formed integrally with the side sealing plates, and the overall structure is firm. A protective cover is arranged on the bearing seat bracket to prevent scratches on the staff or objects from being drawn into the rotating bearing. The transverse frame bars and the longitudinal frame bars are designed with an additional folded edge to increase the overall strength of the flange.

[0004] However, the above method still has the following defects in actual use: the industrial centrifugal fan vibrates during operation and it is difficult to reduce vibration. Under the impact of the vibration of the industrial centrifugal fan, the service life of the shell is reduced. Therefore, the utility model provides an industrial centrifugal fan with a vibration reduction structure. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an industrial centrifugal fan with a vibration reduction structure which can reduce vibration of the industrial centrifugal fan when the fan is working and prolong the service life of the shell.

[0006] The utility model provides an industrial centrifugal fan with a vibration reduction structure, comprising a shock-absorbing seat, the top of the shock-absorbing seat is slidably connected to a support seat, the top of the support seat is provided with a shell body, both sides of the bottom end of the support seat are connected to a first connecting plate, both sides of the bottom end of the first connecting plate are connected to a first hinge seat, both sides of the inner wall of the bottom end of the shock-absorbing seat are connected to a second connecting plate, both sides of the top end of the second connecting plate are slidably connected to a second hinge seat, a shock-absorbing plate is hinged between the first hinge seat and the second hinge seat, the middle part of the top end of the second connecting plate is connected to a vertical plate, and a shock absorber is provided between the vertical plate and the second hinge seat through a disassembly and assembly mechanism.

[0007] The utility model can reduce the vibration of the industrial centrifugal fan during operation and prevent the fan housing from being damaged due to bumps during transportation, thereby extending the service life of the fan.

[0008] In a possible implementation, T-shaped limit grooves are provided on both sides of the top end of the second connecting plate, a T-shaped slider is connected to the middle of the bottom end of the second hinged seat, and the T-shaped slider is slidably connected to the inside of the T-shaped limit groove.

[0009] In a possible embodiment, the disassembly and assembly mechanism includes a first mounting plate, a second mounting plate, a limit frame and a fixed plate, the first mounting plate is arranged at one end of the shock absorber, the limit frame is arranged on one side of the vertical plate, the first mounting plate is arranged inside the limit frame, the second mounting plate is arranged at the other end of the shock absorber, the fixed plate is arranged on one side of the second hinged seat, and the second mounting plate is connected to the fixed plate.

[0010] In a possible embodiment, the first mounting plate is slidably connected to the inside of the limit frame, the middle of both sides of the limit frame are threadedly connected with a first screw rod, the middle of both sides of the first mounting plate are opened with a first screw hole, one end of the first screw rod passes through one side of the limit frame and is threadedly connected to the first screw hole.

[0011] In a possible embodiment, a mounting block is connected to the middle of both sides of the second mounting plate, a second screw is threadedly connected to one side of the mounting block, two second screw holes are opened on one side of the fixing plate, the second screw passes through the mounting block and is threadedly connected to the second screw hole.

[0012] In a possible implementation manner, inspection openings are provided in the middle of the front side and the middle of the back side of the shock absorbing seat, and baffles are connected inside the inspection openings via hinges.

[0013] In a possible implementation manner, both sides of the top of one side of the baffle are connected with connecting blocks, and the connecting blocks are connected to the side surfaces of the shock absorbing seat through fastening bolts.

[0014] In a possible implementation, the bottom end of the shock absorbing seat is connected to a base plate, hydraulic rods are provided on both sides of the top of the base plate, linkage plates are connected to the middle of both sides of the top of the support seat, and the telescopic end of the hydraulic rod is located below the linkage plate.

[0015] Compared with the related art, the industrial centrifugal fan with a vibration reduction structure provided by the utility model has the following beneficial effects:

[0016] Through the cooperation of the first hinged seat and the second hinged seat, the second hinged seat is moved when the industrial centrifugal fan vibrates, and through the cooperation of the shock absorber and the vertical plate, the vibration of the industrial centrifugal fan is buffered, thereby achieving a vibration reduction effect, protecting the industrial centrifugal fan, and extending the service life of the fan housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the disassembly and assembly mechanism of the utility model;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0021] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure at B;

[0022] Figure 6 For this utility model Figure 3 Enlarged structural diagram at C.

[0023] In the figure: 1. shock-absorbing seat; 2. first connecting plate; 3. supporting seat; 4. disassembly and assembly mechanism; 5. shell body; 6. second connecting plate; 7. first hinge seat; 8. second hinge seat; 9. shock-absorbing plate; 10. vertical plate; 11. shock absorber; 12. T-type limit groove; 13. T-type slider; 14. inspection port; 15. baffle; 16. connecting block; 17. bottom plate; 18. hydraulic rod; 19. linkage plate; 401. first mounting plate; 402. second mounting plate; 403. limit frame; 404. fixing plate; 405. first screw; 406. first screw hole; 407. mounting block; 408. second screw; 409. second screw hole. DETAILED DESCRIPTION

[0024] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0026] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Embodiment 1:

[0029] See also Figure 1-6As shown, the embodiment of the present application discloses an industrial centrifugal fan with a vibration reduction structure, including a shock absorbing seat 1, a support seat 3 is slidably connected to the top of the shock absorbing seat 1, a shell body 5 is fixedly arranged at the top of the support seat 3, first connecting plates 2 are fixedly connected to both sides of the bottom end of the support seat 3, first hinge seats 7 are fixedly connected to both sides of the bottom end of the first connecting plate 2, second connecting plates 6 are fixedly connected to both sides of the inner wall of the bottom end of the shock absorbing seat 1, second hinge seats 8 are slidably connected to both sides of the top end of the second connecting plate 6, a shock absorbing plate 9 is hingedly connected between the first hinge seat 7 and the second hinge seat 8, a vertical plate 10 is fixedly connected to the middle part of the top end of the second connecting plate 6, a shock absorber 11 is fixedly arranged between the vertical plate 10 and the second hinge seat 8 through a disassembly mechanism 4, the shell body 5 vibrates to press the second hinge seat 8 downward, and under the action of the shock absorber 11, the vibration is weakened to protect the shell body 5;

[0030] T-shaped limit grooves 12 are provided on both sides of the top end of the second connecting plate 6, and a T-shaped slider 13 is fixedly connected to the middle of the bottom end of the second articulated seat 8. The T-shaped slider 13 is slidably connected to the inside of the T-shaped limit groove 12. The T-shaped limit groove 12 limits the moving position of the T-shaped slider 13, thereby allowing the second articulated seat 8 to move linearly.

[0031] Specifically, when the industrial centrifugal fan vibrates, the shell body 5 squeezes the support seat 3 downward, driving the first hinge seat 7 to press down, causing the second hinge seat 8 to move toward the middle, squeezing the shock absorber 11. Under the action of the shock absorber 11, the vibration transmitted to the second hinge seat 8 is buffered, thereby achieving a shock-absorbing effect and preventing the fan housing from being damaged by vibration.

[0032] Embodiment 2:

[0033] The disassembly and assembly mechanism 4 includes a first mounting plate 401, a second mounting plate 402, a limiting frame 403 and a fixing plate 404. The first mounting plate 401 is fixedly arranged at one end of the shock absorber 11, the limiting frame 403 is fixedly arranged at one side of the vertical plate 10, the first mounting plate 401 is fixedly arranged inside the limiting frame 403, and the mounting position of the shock absorber 11 is positioned by connecting the first mounting plate 401 with the limiting frame 403, the second mounting plate 402 is fixedly arranged at the other end of the shock absorber 11, the fixing plate 404 is fixedly arranged at one side of the second hinge seat 8, the second mounting plate 402 is fixedly connected to the fixing plate 404, and the other end of the shock absorber 11 is installed by connecting the second mounting plate 402 with the fixing plate 404;

[0034] The first mounting plate 401 is slidably connected to the inside of the limiting frame 403, and the middle parts of both sides of the limiting frame 403 are threadedly connected with first screw rods 405. The middle parts of both sides of the first mounting plate 401 are provided with first screw holes 406. One end of the first screw rod 405 passes through one side of the limiting frame 403 and is threadedly connected to the first screw hole 406. The first screw rod 405 is rotated to disengage the first screw rod 405 from the first screw hole 406, so that the first mounting plate 401 is separated from the limiting frame 403, so as to facilitate the disassembly of one end of the shock absorber 11;

[0035] The middle parts of both sides of the second mounting plate 402 are fixedly connected with mounting blocks 407, one side of the mounting block 407 is threadedly connected with a second screw rod 408, one side of the fixing plate 404 is provided with two second screw holes 409, the second screw rod 408 penetrates the mounting block 407 and is threadedly connected with the second screw holes 409, the second screw rod 408 is rotated to separate the second screw rod 408 from the second screw hole 409, so as to facilitate the disassembly of the other end of the shock absorber 11;

[0036] An inspection opening 14 is provided in the middle of the front and back of the shock absorber 1, through which the shock absorber 11 inside the shock absorber 1 can be inspected. A baffle 15 is connected to the inside of the inspection opening 14 through a hinge, and the baffle 15 blocks the inspection opening 14 to prevent foreign debris from entering the shock absorber 1.

[0037] Both sides of the top of one side of the baffle 15 are fixedly connected with connecting blocks 16, and the connecting blocks 16 are connected to the side of the shock-absorbing seat 1 through fastening bolts. The position of the baffle 15 can be fixed by connecting the connecting blocks 16 with the shock-absorbing seat 1;

[0038] The bottom end of the shock-absorbing seat 1 is fixedly connected to a base plate 17, and hydraulic rods 18 are fixedly provided on both sides of the top of the base plate 17. The middle parts of both sides of the top of the support seat 3 are fixedly connected to linkage plates 19. The telescopic ends of the hydraulic rods 18 are located below the linkage plates 19. The two hydraulic rods 18 drive the linkage plates 19 to move to support the industrial centrifugal fan casing so as to replace the shock absorber 11.

[0039] Specifically, first rotate the second screw rod 408 and turn the second screw rod 408 out of the second screw hole 409 to disengage the second mounting plate 402 from the limit, thereby disengaging one end of the shock absorber 11 from the limit, and then rotate the first screw rod 405 and turn the first screw rod 405 out of the first screw hole 406 to disengage the first mounting plate 401 from the limit, thereby disengaging the other end of the shock absorber 11 from the limit, and then move the shock absorber 11 upward until the first mounting plate 401 leaves the limit frame 403, so as to facilitate the removal of the shock absorber 11 for maintenance.

[0040] When using the utility model, firstly, adjust the two hydraulic rods 18 at the same time to extend the hydraulic rods 18, support the linkage plate 19 and the support seat 3, and thus support the shell body 5, then unscrew the fastening bolts, rotate the baffle 15, open the inspection port 14, inspect the inside of the shock absorber seat 1, rotate the second screw rod 408, turn the second screw rod 408 out of the second screw hole 409, so that the second mounting plate 402 is disengaged from the limit, so that one end of the shock absorber 11 is disengaged from the limit, and then rotate the first screw rod 405, turn the first screw rod 405 out of the first screw hole 406, so that the first mounting plate 401 is disengaged from the limit, so that the other end of the shock absorber 11 is disengaged from the limit, and then move the shock absorber 11 upward until the first mounting plate 401 leaves the limit frame 403, so that the shock absorber 11 can be removed and replaced to ensure the vibration reduction effect;

[0041] When the utility model is working, the shell body 5 presses the support seat 3 downward, drives the first hinge seat 7 to be pressed down, and makes the second hinge seat 8 move toward the middle, squeezing the shock absorber 11. Under the action of the shock absorber 11, the vibration transmitted to the second hinge seat 8 is buffered, thereby achieving a shock absorbing effect, avoiding vibration damage to the fan housing, and prolonging the service life of the industrial centrifugal fan housing.

[0042] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An industrial centrifugal fan with a vibration reduction structure, comprising a vibration reduction seat (1), characterized in that: The top of the shock-absorbing seat (1) is slidably connected to a support seat (3), the top of the support seat (3) is provided with a shell body (5), both sides of the bottom end of the support seat (3) are connected to a first connecting plate (2), both sides of the bottom end of the first connecting plate (2) are connected to a first hinge seat (7), both sides of the inner wall of the bottom end of the shock-absorbing seat (1) are connected to a second connecting plate (6), both sides of the top end of the second connecting plate (6) are slidably connected to a second hinge seat (8), a shock-absorbing plate (9) is hinged between the first hinge seat (7) and the second hinge seat (8), the middle part of the top end of the second connecting plate (6) is connected to a vertical plate (10), and a shock absorber (11) is provided between the vertical plate (10) and the second hinge seat (8) through a disassembly mechanism (4).

2. The industrial centrifugal fan with a vibration reduction structure according to claim 1, characterized in that: T-shaped limit grooves (12) are provided on both sides of the top end of the second connecting plate (6), and a T-shaped slider (13) is connected to the middle of the bottom end of the second hinge seat (8), and the T-shaped slider (13) is slidably connected to the inside of the T-shaped limit groove (12).

3. The industrial centrifugal fan with a vibration reduction structure according to claim 1, characterized in that: The disassembly and assembly mechanism (4) comprises a first mounting plate (401), a second mounting plate (402), a limiting frame (403) and a fixing plate (404); the first mounting plate (401) is arranged at one end of the shock absorber (11); the limiting frame (403) is arranged at one side of the vertical plate (10); the first mounting plate (401) is arranged inside the limiting frame (403); the second mounting plate (402) is arranged at the other end of the shock absorber (11); the fixing plate (404) is arranged at one side of the second hinge seat (8); and the second mounting plate (402) is connected to the fixing plate (404).

4. The industrial centrifugal fan with a vibration reduction structure according to claim 3, characterized in that: The first mounting plate (401) is slidably connected to the inside of the limiting frame (403), the middle parts of both sides of the limiting frame (403) are threadedly connected with first screw rods (405), the middle parts of both sides of the first mounting plate (401) are provided with first screw holes (406), one end of the first screw rod (405) passes through one side of the limiting frame (403) and is threadedly connected to the first screw hole (406).

5. The industrial centrifugal fan with a vibration reduction structure according to claim 3, characterized in that: The middle parts of both sides of the second mounting plate (402) are connected to mounting blocks (407), one side of the mounting block (407) is threadedly connected to a second screw rod (408), one side of the fixing plate (404) is provided with two second screw holes (409), the second screw rod (408) passes through the mounting block (407) and is threadedly connected to the second screw hole (409).

6. The industrial centrifugal fan with a vibration reduction structure according to claim 1, characterized in that: The middle of the front side and the middle of the back side of the shock-absorbing seat (1) are both provided with inspection openings (14), and the interior of the inspection openings (14) is connected with baffles (15) via hinges.

7. The industrial centrifugal fan with a vibration reduction structure according to claim 6, characterized in that: Both sides of the top of one side of the baffle (15) are connected to connecting blocks (16), and the connecting blocks (16) are connected to the side surfaces of the shock absorbing seat (1) via fastening bolts.

8. The industrial centrifugal fan with a vibration reduction structure according to claim 1, characterized in that: The bottom end of the shock-absorbing seat (1) is connected to a bottom plate (17), and hydraulic rods (18) are provided on both sides of the top of the bottom plate (17). The middle parts of both sides of the top of the support seat (3) are connected to linkage plates (19), and the telescopic ends of the hydraulic rods (18) are located below the linkage plates (19).

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