Balance adjusting and stabilizing device of centrifugal fan

Abstract

The utility model relates to the technical field of balance adjustment of centrifugal fans, and discloses a balance adjustment stabilizing device of a centrifugal fan, which comprises a centrifugal fan body, and an impeller is arranged in the centrifugal fan body. According to the balance adjusting and stabilizing device of the centrifugal fan, through the arrangement of the balance weight adjusting assembly, when the balance adjusting and stabilizing device is used, a pull block is pulled, the pull block moves to drive an inserting rod to move, at the moment, a connecting spring is in a stretching state, a balance weight is pushed to slide on a fixing rod, and after the balance weight slides to a proper position, the pull block is loosened; a connecting spring drives a pull block to reset, and an inserting rod is inserted into an inserting hole to limit a balancing weight, so that a worker can adjust the position of the balancing weight, the mass distribution of the impeller is balanced, the centrifugal force is reduced, and the phenomenon that a fan is damaged due to the fact that the mass distribution of the impeller is not uniform and the centrifugal force is generated is avoided; and the fan runs more stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal fan balance adjustment technical field especially, relate to a kind of balance adjusting stabilizing device of centrifugal fan. BACKGROUND

[0002] As a kind of core fluid conveying equipment, centrifugal fan plays an irreplaceable role in many industries.In the industrial production field, whether it is chemical, electric power or metallurgical industry, centrifugal fan bears the heavy responsibility of conveying gas, ventilation and providing necessary power for process flow.For example, in chemical production, it is responsible for conveying various reaction gases, to ensure the smooth progress of chemical reaction;In the electric power industry, it provides combustion-supporting air for boiler, which is crucial to power generation efficiency and unit stable operation.In the civil field, the ventilation and air conditioning system of building cannot do without centrifugal fan, which creates comfortable and healthy indoor air environment for people.With the continuous development of various industries, higher and higher requirements are put forward for the performance and operating stability of centrifugal fan.

[0003] The existing device, when being used, due to uneven impeller mass, makes the rotor imbalance of centrifugal fan produce periodic centrifugal force in high-speed rotation process, so that the fan appears vibration, damage and other phenomena, therefore a kind of balance adjusting stabilizing device of centrifugal fan is proposed. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a kind of balance adjusting stabilizing device of centrifugal fan, which has high practicability, simple structure and can be operated simply, solves the problem that the existing device, when being used, due to uneven impeller mass, makes the rotor imbalance of centrifugal fan produce periodic centrifugal force in high-speed rotation process, so that the fan appears vibration, damage and other phenomena.

[0005] In order to achieve the above object, the utility model discloses a balance adjusting stabilizing device of centrifugal fan through the following technical scheme, a centrifugal fan body is provided, the inside of centrifugal fan body is provided with an impeller, the inside of impeller is provided with three sets of counterweight adjusting assembly, the bottom of centrifugal fan body is fixedly connected with the buffer plate, the bottom of buffer plate is fixedly connected with the buffer assembly, three sets of counterweight adjusting assembly all include the counterweight block of setting in the inside of impeller, the inside of three sets of counterweight block all is connected with fixed link with sliding, the inside of three sets of counterweight block all is connected with two groups of plug-in link with sliding, the outside of six groups of plug-in link all is connected with connecting spring, and one end of six groups of connecting spring all is fixedly connected with the pull block, the buffer assembly includes four groups of rotating blocks that are fixedly connected to the bottom of buffer plate, the inside of four groups of rotating blocks all is connected with rotary lever with rotation, and one end of four groups of rotary lever all is connected with moving block with rotation, and one side of four groups of moving blocks all is fixedly connected with damping spring, and the inside of four groups of damping spring is extruded two groups of slide rods.

[0006] As a further scheme of the utility model, the surface of the impeller is provided with a plurality of plug-in holes, and the six plug-in rods are inserted into the plug-in holes. The plug-in holes can place the plug-in rods.

[0007] As a further scheme of the utility model, the surface of the impeller is provided with three sliding grooves, and the three fixed rods are fixedly connected to the inside of the three sliding grooves. The sliding grooves can install the fixed rods.

[0008] As a further scheme of the utility model, one end of the centrifugal fan body is fixedly connected with a flow pipe, and the rear side of the centrifugal fan body is fixedly connected with a servo motor. The servo motor can drive the device to run.

[0009] As a further scheme of the utility model, the bottom of the servo motor is fixedly connected with a support seat, and the surface of the support seat is threadedly connected with a plurality of bolts. The bolts can fix the support seat.

[0010] As a further scheme of the utility model, the outside of the two slide rods is fixedly connected with an object housing, and the buffer plate is slidably connected to the inside of the object housing. The object housing can fix the slide rods.

[0011] As a further scheme of the utility model, the outside of the object housing is fixedly connected with four fixed blocks, and the inside of the four fixed blocks is threadedly connected with fixed screws. The fixed screws can fix the device.

[0012] The balance adjusting stabilizing device of centrifugal fan has the following beneficial effects:

[0013] 1. The balancing adjusting stabilizing device of the centrifugal fan, through the setting of the counterweight adjusting assembly, the pull block is pulled during use, the pull block moves to drive the insertion rod to move, the connecting spring is in the stretching state at this time, the counterweight block is pushed to make the counterweight block slide on the fixed rod, after sliding to the appropriate position, the pull block is loosened, the connecting spring drives the pull block to reset, the insertion rod is inserted into the inside of the insertion hole, the counterweight block is limited, so that the position of the counterweight block can be adjusted by the worker, thereby balancing the mass distribution of the impeller, reducing the centrifugal force, avoiding the phenomenon that the fan is damaged due to the uneven mass distribution of the impeller, and making the fan run more stably.

[0014] 2. The balancing adjusting stabilizing device of the centrifugal fan, through the setting of the buffer assembly, the centrifugal fan body will produce certain vibration during use, the buffer plate is used to absorb part of the generated vibration force, the buffer plate will move due to the vibration force, the buffer plate moves to make the rotating block rotate, the rotating block moves to make the rotating rod move, the rotating rod moves to push the moving block to move, the moving block moves to extrude the damping spring, the damping spring further absorbs the vibration force generated by the device, so that the vibration generated by the device can be effectively absorbed and attenuated, the vibration amplitude of the fan is reduced, and the noise generated during the operation of the fan is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a whole structure schematic view of the utility model;

[0016] Fig. 2 It is a buffer plate structure schematic view of the utility model;

[0017] Fig. 3 It is a buffer assembly structure schematic view of the utility model;

[0018] Fig. 4 It is a counterweight adjusting assembly structure schematic view of the utility model.

[0019] In the drawing: 1, centrifugal fan body; 2, impeller; 3, counterweight adjusting assembly; 301, counterweight block; 302, fixed rod; 303, insertion rod; 304, connecting spring; 305, pull block; 4, buffer plate; 5, buffer assembly; 501, rotating block; 501, rotating block; 502, rotating rod; 503, moving block; 504, damping spring; 505, sliding rod; 6, flow pipe; 7, servo motor; 8, support seat; 9, bolt; 10, storage shell; 11, fixed block; 12, fixed screw. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0021] Please refer to Figs. 1 to 4 The utility model provides a kind of technical solutions: a balancing adjustment stabilizing device of centrifugal fan, including centrifugal fan body 1, the inside of centrifugal fan body 1 is provided with impeller 2, the inside of impeller 2 is provided with three groups of counterweight adjustment components 3, the setting of counterweight adjustment components 3 is adjusted to the centrifugal force of device, the bottom of centrifugal fan body 1 is fixedly connected with buffer plate 4, the bottom of buffer plate 4 is fixedly connected with buffer component 5, the setting of buffer component 5 is buffered to the vibration generated by device, three groups of counterweight adjustment components 3 all include the counterweight block 301 being set in the inside of impeller 2, the inside of three groups of counterweight block 301 is slidably connected with fixed rod 302, the inside of three groups of counterweight block 301 is slidably connected with two groups of insertion rod 303, the outside of six groups of insertion rod 303 is all sleeved with connecting spring 304, one end of six groups of connecting spring 304 is all fixedly connected with pull block 305;Buffer component 5 includes four groups of rotating blocks 501 being fixedly connected to the bottom of buffer plate 4, four groups of rotating blocks 501 are all rotatably connected with rotating rod 502 in the inside, one end of four groups of rotating rod 502 is all rotatably connected with moving block 503, one side of four groups of moving block 503 is all fixedly connected with damping spring 504, two groups of slide rods 505 are extruded in the inside of four groups of damping spring 504;

[0022] The surface of impeller 2 is provided with a plurality of insertion holes, and the six groups of insertion rods 303 are all inserted into the insertion holes, and the insertion holes are provided to place the insertion rods 303.

[0023] The surface of impeller 2 is provided with three groups of sliding grooves, and the three groups of fixed rods 302 are all fixedly connected to the inside of the three groups of sliding grooves, and the sliding grooves are provided to install the fixed rods 302.

[0024] One end of the centrifugal fan body 1 is fixedly connected with the flow pipe 6, and the rear side of the centrifugal fan body 1 is fixedly connected with the servo motor 7, and the servo motor 7 is provided to drive the device to operate.

[0025] The bottom of the servo motor 7 is fixedly connected with the support seat 8, and the surface of the support seat 8 is threadedly connected with a plurality of bolts 9, and the bolts 9 are provided to fix the support seat 8.

[0026] The outer side of the two groups of slide rods 505 is fixedly connected with the storage shell 10, and the sliding plate 4 is slidably connected to the inside of the storage shell 10, and through the arrangement of the storage shell 10, the slide rod 505 is fixed.

[0027] The outer side of the two groups of slide rods 505 is fixedly connected with the storage shell 10, and the sliding plate 4 is slidably connected to the inside of the storage shell 10, and through the arrangement of the storage shell 10, the slide rod 505 is fixed.

[0028] In the device, the working steps are as follows:

[0029] The first step is to pull the pull block 305 during use, the pull block 305 is moved to drive the insertion rod 303 to move, at this time, the connecting spring 304 is in a stretched state, the counterweight block 301 is pushed, so that the counterweight block 301 slides on the fixed rod 302, after sliding to a suitable position, the pull block 305 is released, the connecting spring 304 drives the pull block 305 to reset, the insertion rod 303 is inserted into the inside of the insertion hole, the counterweight block 301 is limited, so that the position of the counterweight block 301 can be adjusted by the worker, thereby balancing the mass distribution of the impeller 2 and reducing the centrifugal force;

[0030] The second step is that the centrifugal fan body 1 will produce a certain vibration during use, the buffer plate 4 is used to absorb part of the vibration force, the buffer plate 4 will move due to the vibration force, the movement of the buffer plate 4 drives the rotating block 501 to rotate, the movement of the rotating block 501 drives the rotating rod 502 to move, the rotating rod 502 moves to drive the moving block 503 to move, the moving block 503 moves to extrude the damping spring 504, and the damping spring 504 further absorbs the vibration force generated by the device, so that the vibration generated by the device can be effectively absorbed and attenuated.

[0031] It should be noted that the equipment structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the design principle technology, and under the premise that the above-mentioned principle of the utility model is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, and the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art.

[0032] The standard parts used in the application can be purchased from the market, and can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art. The mechanical parts and equipment adopt the conventional type in the prior art, and the components known to the person skilled in the art are known to the person skilled in the art through technical manual or conventional experimental method.

[0033] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A balancing adjustment stabilizing device of a centrifugal fan including a centrifugal fan body (1), characterized in that: The centrifugal fan body (1) is internally provided with an impeller (2), the impeller (2) is internally provided with three sets of counterweight adjusting assemblies (3), the bottom surface of the centrifugal fan body (1) is fixedly connected with a buffer plate (4), the bottom surface of the buffer plate (4) is fixedly connected with a buffer assembly (5), Three sets of the counterweight adjusting assemblies (3) all include a counterweight block (301) arranged in the impeller (2), three sets of the counterweight blocks (301) are all slidably connected with a fixed rod (302), three sets of the counterweight blocks (301) are all slidably connected with two sets of plug-in rods (303), the outer sides of six sets of the plug-in rods (303) are all sleeved with connecting springs (304), one end of each of the six sets of the connecting springs (304) is fixedly connected with a pull block (305); The buffer assembly (5) includes four sets of rotating blocks (501) fixedly connected to the bottom surface of the buffer plate (4), the rotating blocks (501) are all rotatably connected with rotating rods (502) in the interiors, one end of each of the rotating rods (502) is rotatably connected with a moving block (503), one side of each of the moving blocks (503) is fixedly connected with a damping spring (504), the interiors of the damping springs (504) are sleeved with two sets of slide rods (505).

2. A balancing adjustment stabilizing device for a centrifugal fan according to claim 1, characterized in that: The surface of the impeller (2) is provided with a plurality of plug-in holes, and six sets of the plug-in rods (303) are all plug-in connected in the interiors of the plug-in holes.

3. A balancing adjustment stabilizing device for a centrifugal fan as set forth in claim 1, wherein: The surface of the impeller (2) is provided with three sets of sliding grooves, and three sets of the fixed rods (302) are all fixedly connected in the interiors of the three sets of sliding grooves.

4. A balancing adjustment stabilizing device for a centrifugal fan as set forth in claim 1, wherein: One end of the centrifugal fan body (1) is fixedly connected with a flow pipe (6), and the rear side of the centrifugal fan body (1) is fixedly connected with a servo motor (7).

5. A balancing adjustment stabilizing device for a centrifugal fan as defined in claim 4, wherein: The bottom surface of the servo motor (7) is fixedly connected with a supporting seat (8), and the surface of the supporting seat (8) is threadedly connected with a plurality of bolts (9).

6. A balancing adjustment stabilizing device for a centrifugal fan as set forth in claim 1, wherein: The outer sides of two sets of the slide rods (505) are fixedly connected with a storage shell (10), and the buffer plate (4) is slidably connected in the interior of the storage shell (10).

7. A balancing adjustment stabilizing device for a centrifugal fan as defined in claim 6, wherein: The outer sides of the storage shell (10) are fixedly connected with four sets of fixed blocks (11), and the interiors of the fixed blocks (11) are threadedly connected with fixed screws (12).

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