Energy-saving main exhaust fan adopting frequency conversion control

Abstract

The utility model discloses an energy-saving main exhaust fan adopting frequency conversion control, which belongs to the technical field of centrifugal fans, and comprises a base, a mounting mechanism is arranged at the top end of the base, an adjusting mechanism is arranged outside the mounting mechanism, a mounting rack is fixedly mounted at the top end of the base, and the adjusting mechanism is arranged outside the mounting mechanism. A variable frequency motor is fixedly mounted at the top end of the mounting rack, an output shaft of the variable frequency motor is fixedly connected with a fan shaft blade through a coupler, and a fixing mechanism is arranged in the mounting rack. By arranging the mounting mechanism and the adjusting mechanism, the angle of the air outlet pipe of the carbon steel shell can be adjusted, so that the air outlet direction can be flexibly changed according to actual requirements to adapt to different mounting environments and ventilation requirements, the flexibility and adaptability of the centrifugal fan can be remarkably improved, and the service life of the centrifugal fan is prolonged. And the requirements of various application scenes can be better met, so that the practicability and the market competitiveness of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal fan technical field especially is related to a kind of energy-saving main exhaust fan using frequency conversion control. BACKGROUND

[0002] Centrifugal fan is relied on input mechanical energy, improves gas pressure and sends gas, and it is a kind of driven fluid machinery, centrifugal fan uses driving motor to drive impeller rotation to work, main electric equipment is driving motor, and main energy-consuming equipment is also driving motor, centrifugal fan is widely used in ventilation, dust removal and cooling of factory, mine, tunnel, cooling tower, vehicle, ship and building, ventilation and air induction of boiler and industrial furnace, cooling and ventilation in air conditioning equipment and household appliance equipment, grain drying and selection and sending, wind tunnel air source and air cushion ship inflation and propulsion etc.

[0003] The position of the ventilation duct in the existing industrial plant can be changed due to equipment layout and space limitations, and the angle of the air outlet of the centrifugal fan is fixed. Different angle air outlets use corresponding carbon steel shells, and cannot be adjusted to the corresponding angle as needed, reducing the applicability and practicality of the centrifugal fan.

[0004] Therefore, it is urgent to provide an energy-saving main exhaust fan using frequency conversion control to solve the above problems. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an energy-saving main exhaust fan using frequency conversion control.

[0006] To solve the above technical problems, one technical scheme of the utility model is to provide an energy-saving main exhaust fan using frequency conversion control, which comprises a base, the top end of the base is provided with a mounting mechanism, the outside of the mounting mechanism is provided with an adjusting mechanism, the top end of the base is fixedly provided with a mounting rack, the top end of the mounting rack is fixedly provided with a frequency conversion motor, the output shaft of the frequency conversion motor is fixedly connected with a fan shaft blade through a shaft coupling, and the inside of the mounting rack is provided with a fixing mechanism.

[0007] Through the above technical scheme, the frequency conversion motor can automatically adjust the speed of the fan shaft blade according to the actual working condition, realizing energy-saving operation.

[0008] The utility model is further provided as follows: the mounting mechanism comprises a first mounting plate fixed to the top end of the base, a first rotating ring is fixedly installed on one side of the first mounting plate, and the inside of the first rotating ring is rotatably connected with the outer surface of the output shaft of the frequency conversion motor.

[0009] Through the technical scheme, the output shaft of the variable frequency motor rotates through the first mounting plate and the first rotating ring.

[0010] The utility model further sets up: the top fixed mounting of base has second mounting plate, one side of second mounting plate has the fixed mounting of second rotating ring, the other side of second mounting plate has the fixed mounting of air intake pipe.

[0011] Through the technical scheme, the wind force enters through the air intake pipe.

[0012] The utility model further sets up: the adjusting mechanism includes the first carbon steel shell of rotation installation in the outer surface of first rotating ring and second rotating ring, the outside fixed mounting of first carbon steel shell has the air outlet pipe.

[0013] Through the technical scheme, the wind force is discharged through the air outlet pipe, and the first carbon steel shell can ensure the structural strength and stability of the fan, and different thickness and material carbon steel shells can be selected according to requirements, so as to adapt to different working environments and pressure requirements.

[0014] The utility model further sets up: one side of first carbon steel shell is closely combined with second carbon steel shell, first carbon steel shell and second carbon steel shell are connected through the anti-loosening double nut thread, and one side of first carbon steel shell and second carbon steel shell is fixedly installed with the fixed plug-in board.

[0015] Through the technical scheme, the first carbon steel shell and the second carbon steel shell can be rotated and adjusted through the first rotating ring and the second rotating ring, and the anti-loosening double nut prevents the first carbon steel shell and the second carbon steel shell from loosening due to vibration or other external factors.

[0016] The utility model further sets up: the fixed mechanism includes the lead screw motor fixed in the inner bottom wall of the mounting rack, and the output shaft of the lead screw motor is fixedly connected with the ball screw through the shaft coupling.

[0017] Through the technical scheme, the lead screw motor drives the ball screw to rotate.

[0018] The utility model further sets up: the outer surface of the ball screw is screw mounted with the sliding block with the ball nut seat, the outer surface of the sliding block is connected with the inner wall of the mounting rack in a sliding mode, one end of the sliding block is fixedly installed with the movable plug-in rod, and the outer surface of the movable plug-in rod is embeddedly installed with the clamping groove of the fixed plug-in board.

[0019] Through the technical scheme, the ball screw drives the sliding block to move through the mounting rack, the sliding block drives the movable plug-in rod to be inserted into the clamping groove of the fixed plug-in board, the first carbon steel shell and the second carbon steel shell are fixed, and the plurality of movable plug-in rods are distributed in a circular manner at intervals of fifteen degrees, so that the air outlet pipe can be adjusted at angles of multiples of fifteen degrees.

[0020] The utility model discloses the beneficial effect is as follows:

[0021] 1. The utility model discloses a mounting mechanism and adjusting mechanism can be adjusted to the angle of carbon steel shell air outlet pipe, so can change the air outlet direction according to actual demand, adapts to different installation environment and ventilation requirement, can significantly promote the flexibility and adaptability of centrifugal fan, makes it better satisfy the demand of various application scene, thereby improve the practicability and market competitiveness of equipment,

[0022] 2. The utility model discloses a fixing mechanism can be fixed to the angle of adjusting, prevent the deviation caused by vibration, wind pressure or other external factors, ensure that centrifugal fan can continuously and effectively work, reduced the possible failure or security risk of the part loosening or displacement, improve the safety and reliability of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the first view structure diagram of the utility model,

[0024] Figure 2 It is the second view structure diagram of the utility model,

[0025] Figure 3 It is the explosion structure diagram of the utility model,

[0026] Figure 4 It is the adjusting mechanism structure diagram of the utility model.

[0027] In the drawing: 1, base plate, 2, mounting mechanism, 201, first mounting plate, 202, first rotary ring, 203, second mounting plate, 204, second rotary ring, 205, air inlet pipe, 3, adjusting mechanism, 301, first carbon steel shell, 302, air outlet pipe, 303, second carbon steel shell, 304, anti-loosening double nut, 305, fixed plug-in board, 4, mounting rack, 5, variable frequency motor, 6, fan shaft leaf, 7, fixing mechanism, 701, screw motor, 702, ball screw, 703, sliding block, 704, movable plug-in rod. DETAILED DESCRIPTION

[0028] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.

[0029] Please refer to Figures 1-4The utility model provides an energy -conserving type main exhaust fan with frequency conversion control, including base 1, the top of base 1 is provided with mounting mechanism 2, mounting mechanism 2 includes the first mounting plate 201 fixed in the top of base 1, one side of first mounting plate 201 is fixedly installed with first swivel ring 202, the top of base 1 is fixedly installed with second mounting plate 203, one side of second mounting plate 203 is fixedly installed with second swivel ring 204, the other side of second mounting plate 203 is fixedly installed with air intake pipe 205, first mounting plate 201 and second mounting plate 203 are installed respectively to first swivel ring 202 and second swivel ring 204, and fan is inhaled through air intake pipe 205.

[0030] As Figures 2-4 The utility model provides an energy -conserving type main exhaust fan with frequency conversion control, including base 1, the top of base 1 is provided with mounting mechanism 2, mounting mechanism 2 includes the first mounting plate 201 fixed in the top of base 1, one side of first mounting plate 201 is fixedly installed with first swivel ring 202, the top of base 1 is fixedly installed with second mounting plate 203, one side of second mounting plate 203 is fixedly installed with second swivel ring 204, the other side of second mounting plate 203 is fixedly installed with air intake pipe 205, first mounting plate 201 and second mounting plate 203 are installed respectively to first swivel ring 202 and second swivel ring 204, and fan is inhaled through air intake pipe 205.

[0031] As Figure 2 And Figure 3As shown, the top end of the base 1 is fixedly provided with a mounting rack 4, the top end of the mounting rack 4 is fixedly provided with a variable frequency motor 5, the output shaft of the variable frequency motor 5 is fixedly connected with a fan shaft blade 6 through a shaft coupling, the inside of the first rotating ring 202 is rotatably connected with the outer surface of the output shaft of the variable frequency motor 5, the inside of the mounting rack 4 is provided with a fixing mechanism 7, the fixing mechanism 7 comprises a lead screw motor 701 fixed to the inner bottom wall of the mounting rack 4, the output shaft of the lead screw motor 701 is fixedly connected with a ball screw 702 through a shaft coupling, the outer surface of the ball screw 702 is threadedly provided with a sliding block 703 with a ball nut seat, the outer surface of the sliding block 703 is slidably connected with the inner wall of the mounting rack 4, one end of the sliding block 703 is fixedly provided with a movable plug-in rod 704, the outer surface of the movable plug-in rod 704 is embeddedly installed with the clamping groove of the fixed plug-in plate 305, the variable frequency motor 5 can automatically adjust the rotating speed of the fan shaft blade 6 according to the actual working condition, energy-saving operation is realized, the lead screw motor 701 drives the ball screw 702 to rotate, the ball screw 702 drives the sliding block 703 to move through the mounting rack 4, the sliding block 703 drives the movable plug-in rod 704 to be inserted into the clamping groove inside the fixed plug-in plate 305, the first carbon steel shell 301 and the second carbon steel shell 303 are fixed, and the plurality of movable plug-in rods 704 are circumferentially distributed at intervals of fifteen degrees, so that the air outlet pipe 302 can be adjusted at angles of multiples of fifteen degrees.

[0032] In use, the variable frequency motor 5 can automatically adjust the rotating speed of the fan shaft blade 6 according to the actual working condition, energy-saving operation is realized, air is drawn in through the air inlet pipe 205, and then is discharged through the air outlet pipe 302, when the angle of the air outlet pipe 302 is adjusted, the lead screw motor 701 drives the ball screw 702 to rotate, the ball screw 702 drives the sliding block 703 to move through the mounting rack 4, the sliding block 703 drives the movable plug-in rod 704 to be fixed to the fixed plug-in plate 305, the first carbon steel shell 301 and the second carbon steel shell 303 are adjusted in rotation through the first rotating ring 202 and the second rotating ring 204, and the plurality of movable plug-in rods 704 are circumferentially distributed at intervals of fifteen degrees, so that the air outlet pipe 302 can be adjusted at angles of multiples of fifteen degrees,

[0033] The anti-loose double nuts 304 prevent the first carbon steel shell 301 and the second carbon steel shell 303 from loosening due to vibration or other external factors, the carbon steel shell can ensure the structural strength and stability of the fan, and the carbon steel shell with different thicknesses and materials can be selected according to requirements, so as to adapt to different working environments and pressure requirements.

[0034] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion in the utility model specification and the attached drawing contents, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An energy-saving main exhaust fan with variable frequency control, comprising a base (1), characterized in that: The top end of the base (1) is provided with a mounting mechanism (2), the outside of the mounting mechanism (2) is provided with an adjusting mechanism (3), the top end of the base (1) is fixedly provided with a mounting rack (4), the top end of the mounting rack (4) is fixedly provided with a variable frequency motor (5), the output shaft of the variable frequency motor (5) is fixedly connected with a fan shaft blade (6) through a shaft coupling, and the inside of the mounting rack (4) is provided with a fixing mechanism (7).

2. The energy-saving main exhaust fan with frequency conversion control according to claim 1, characterized in that: The mounting mechanism (2) comprises a first mounting plate (201) fixed to the top end of the base (1), a first rotating ring (202) is fixedly installed on one side of the first mounting plate (201), and the inside of the first rotating ring (202) is rotatably connected with the outer surface of the output shaft of the variable frequency motor (5).

3. The energy-saving main exhaust fan with frequency conversion control according to claim 2, characterized in that: The top end of the base (1) is fixedly provided with a second mounting plate (203), one side of the second mounting plate (203) is fixedly provided with a second rotating ring (204), and the other side of the second mounting plate (203) is fixedly provided with an air inlet pipe (205).

4. The energy-saving main exhaust fan with frequency conversion control according to claim 3, characterized in that: The adjusting mechanism (3) comprises a first carbon steel shell (301) rotatably installed on the outer surfaces of the first rotating ring (202) and the second rotating ring (204), and an air outlet pipe (302) is fixedly installed on the outside of the first carbon steel shell (301).

5. The energy-saving main exhaust fan with frequency conversion control according to claim 4, characterized in that: One side of the first carbon steel shell (301) is tightly fitted with a second carbon steel shell (303), the first carbon steel shell (301) and the second carbon steel shell (303) are threadedly connected through a locking double nut (304), and the first carbon steel shell (301) and the second carbon steel shell (303) are fixedly provided with a fixed plug-in plate (305) on one side.

6. The energy-saving main exhaust fan with frequency conversion control according to claim 1, characterized in that: The fixing mechanism (7) comprises a lead screw motor (701) fixed to the inner bottom wall of the mounting rack (4), and the output shaft of the lead screw motor (701) is fixedly connected with a ball screw (702) through a shaft coupling.

7. The energy-saving main exhaust fan with frequency conversion control according to claim 6, characterized in that: The outer surface of the ball screw (702) is threadedly provided with a sliding block (703) provided with a ball nut seat, the outer surface of the sliding block (703) is slidably connected with the inner wall of the mounting rack (4), one end of the sliding block (703) is fixedly provided with a movable plug-in rod (704), and the outer surface of the movable plug-in rod (704) is embeddedly installed in the clamping groove of the fixed plug-in plate (305).

Images