High-temperature-resistant centrifugal fan

Abstract

The utility model discloses a high-temperature-resistant centrifugal fan which comprises a machine shell, bearing seats are arranged on the upper end face of the machine shell and located on the two sides of the machine shell, rotating shafts are rotationally arranged in the bearing seats, a first belt wheel is arranged at one end of each rotating shaft, a motor is arranged on the outer wall of the machine shell, a second belt wheel is arranged at one end of the motor, and the second belt wheel is arranged at the other end of the motor. A belt is arranged on the first belt wheel and the second belt wheel, an air bellow is fixedly arranged on the outer wall of the machine shell, the other end of the rotating shaft penetrates through the air bellow and is provided with a wind wheel, a heat insulation cover is arranged at the position, located on one side of the machine shell, of the outer end of the motor, and a heat absorption copper block is arranged in the middle of the heat insulation cover. The heat absorbing plate can conduct heat in the heat insulating cover to the heat absorbing copper block, at the moment, the heat on the heat absorbing copper block can be dissipated under the action of the heat dissipation fins, meanwhile, the fan can be turned on to increase the heat dissipation efficiency of the heat dissipation fins, and therefore the heat dissipation efficiency of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal fan technical field more specifically, it relates to a kind of high-temperature-resistant centrifugal fan. BACKGROUND

[0002] Centrifugal fan belongs to one kind of impeller machinery, is widely used in energy, environment, aviation and each field, is one of main energy-consuming equipment in industrial and agricultural production.Centrifugal fan is one of four big pieces in dust removal ventilation system, is a kind of more precise operating machinery, relies on the rotation of impeller to form negative pressure in fan, outside gas is sucked and is discharged fan by impeller flow channel and volute, centrifugal fan is mainly composed of impeller, casing, motor and shaft, it is a kind of driven fluid machinery, centrifugal fan needs to be used in higher temperature environment sometimes, to exhaust waste gas.

[0003] But the existing centrifugal fan does not have the structure of heat dissipation to motor, when using in higher temperature environment, the heat of motor itself can be increased more seriously, and then the service life of centrifugal fan is caused Certain influence;

[0004] And the motor of the existing belt type centrifugal fan is mostly fixedly installed on the upper end of base, and the belt is slackened after long-term use, so that the phenomenon of slipping occurs in the process of use, and the normal use is affected. UTILITY MODEL CONTENT

[0005] (I) the technical problem solved

[0006] In view of the problems in the prior art, the utility model provides a kind of high-temperature-resistant centrifugal fan to solve the technical problems that the existing centrifugal fan does not have the structure of heat dissipation to motor in the background art, when using in higher temperature environment, the heat of motor itself can be increased more seriously.

[0007] (II) technical scheme

[0008] In order to achieve the above object, the utility model provides the following technical scheme: A kind of high-temperature-resistant centrifugal fan, including casing, the upper end surface of the casing and located both sides are equipped with bearing seat, rotating shaft is rotatably arranged in the inside of bearing seat, the one end of rotating shaft is equipped with first pulley, the outer wall of casing is equipped with motor, the one end of motor is equipped with second pulley, pulley and second pulley are equipped with belt on the first, the outer wall of casing is fixedly equipped with wind box, the other end of rotating shaft passes through wind box and is equipped with wind wheel, the outer end of motor and located one side of casing is equipped with heat shield, the middle position of heat shield is equipped with heat-absorbing copper block, the side surface of heat-absorbing copper block is equipped with heat-absorbing plate, heat-absorbing plate is equipped with multiple and located the inside of casing, the other side surface of heat-absorbing copper block is equipped with heat dissipation fin, the outer wall of heat-absorbing copper block is equipped with mounting bracket, fan is equipped on the mounting bracket, fan is located one side of heat dissipation fin, the outer wall of casing and located both sides are equipped with slide rail.

[0009] The utility model further provides that the slide rail is slidably provided with a sliding block, the motor is fixedly installed on the slide block through the base, the lower end surface of the casing is fixedly provided with a base, the upper end surface of the base is provided with a threaded rod, the threaded rod is located at the middle position of the two slide rails, the outer wall of the base is fixedly provided with a guide block at the upper and lower sides, and the guide block is slidably installed on the threaded rod to facilitate the orientation of the motor.

[0010] The utility model further provides that the upper and lower ends of the threaded rod are provided with adjusting nuts, the adjusting nuts are in contact with one side surface of the guide block, and the position of the motor is adjusted.

[0011] The utility model further provides that the outer wall of the wind box is fixedly provided with an air inlet pipe, one end of the air inlet pipe is provided with a square frame, the outer wall of the square frame is provided with a strip block at the upper and lower sides, the inside of the strip block is slidably provided with a sliding block, the lower end of the sliding block is provided with a bolt, the inside of the square frame is provided with a filter screen, the upper and lower sides of the filter screen are provided with a slot, and one end of the bolt is located in the inside of the slot to facilitate the filtration of air entering the inside of the wind box.

[0012] The utility model further provides that the upper end of the sliding block is provided with a pressing spring, the other end of the pressing spring is fixedly connected with the inner wall of the strip block to facilitate the entry of the bolt into the slot and prevent it from coming out.

[0013] The utility model further provides that the upper end of the wind box is provided with an air outlet hole to facilitate the air outlet of the wind box.

[0014] The utility model further provides that the outer wall of the heat shield is provided with an escape hole, the output end of the motor is located in the inside of the escape hole to facilitate the adjustment of the position of the motor.

[0015] The utility model further provides for, the outer wall of sliding block all is equipped with the poking block, convenient for moving sliding block.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a high temperature resistant centrifugal fan has the following beneficial effects:

[0018] 1. By setting heat shield, heat absorption copper block, heat absorption plate and heat dissipation fin, when the temperature of motor rises, the heat absorption plate will guide the heat inside the heat shield to the upper end of the heat absorption copper block, at this time the heat on the heat absorption copper block will be dissipated through the action of heat dissipation fin from the heat shield, and the fan can also be opened to increase the heat dissipation efficiency of the heat dissipation fin, thereby improving the heat dissipation efficiency of the device, and further improving the high temperature resistance of the device.

[0019] 2. By setting the shell, slide rail, motor and threaded rod, when the tightness of the belt needs to be adjusted, the sliding block can be moved in the inside of the slide rail by rotating the adjusting nut, thereby driving the motor to move up and down, to adjust the distance between the first pulley and the second pulley, prevent the belt from slipping, and increase the flexibility of the device in use.

[0020] 3. By setting the air inlet pipe, square frame and filter screen, the user can connect the air inlet pipe with the equipment that needs to be exhausted, then turn on the motor to make the fan wheel rotate, so that the airflow is generated in the air bellow, and the gas is accelerated to be discharged, and in the process of air intake, the filter screen can filter the dust or large particles in the gas to prevent them from entering the air bellow and affecting the service life of the fan wheel, and the filter screen can be disassembled and cleaned by moving the poking block to make one end of the bolt separate from the slot. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a kind of high temperature resistant centrifugal fan in unused state overall schematic diagram;

[0022] Figure 2 It is the installation position schematic diagram of shell slide rail, sliding block, threaded rod and adjusting nut;

[0023] Figure 3 It is the position schematic diagram of motor second pulley and guide block;

[0024] Figure 4 It is the installation explosion drawing of square frame, sliding block, bolt and filter screen;

[0025] Figure 5 It is the installation explosion drawing of heat shield heat absorption copper block, mounting bracket and fan.

[0026] Figure 6 Positional schematic view of heat absorbing copper block, heat absorbing plate and avoiding hole on heat shield.

[0027] In the figure: 1, the shell; 2, rotating shaft; 3, first pulley; 4, motor; 5, second pulley; 6, belt; 7, wind box; 8, wind wheel; 9, heat shield; 10, heat absorbing copper block; 11, heat absorbing plate; 12, heat dissipation fin; 13, mounting frame; 14, fan; 15, slide rail; 16, sliding block; 17, base; 18, threaded rod; 19, guide block; 20, adjusting nut; 21, air inlet pipe; 22, square frame; 23, strip block; 24, sliding block; 25, bolt; 26, filter screen; 27, slot; 28, abutting spring; 29, air outlet hole; 30, avoiding hole; 31, toggle block. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0030] In the present application, unless otherwise stated, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.

[0031] Please refer to Figures 1-6The utility model provides a high temperature resistant centrifugal ventilator, including casing 1, the upper end surface of casing 1 and the both sides are equipped with bearing seat, the inside rotation of bearing seat is equipped with rotating shaft 2, one end of rotating shaft 2 is equipped with first pulley 3, the outer wall of casing 1 is equipped with motor 4, one end of motor 4 is equipped with second pulley 5, and the outer wall of casing 1 is fixedly provided with wind box 7, the other end of rotating shaft 2 passes through wind box 7 and is equipped with wind wheel 8, the outer end of motor 4 and the side of casing 1 are equipped with heat shield 9, the middle position of heat shield 9 is equipped with heat absorption copper block 10, one side of heat absorption copper block 10 is equipped with heat absorption plate 11, heat absorption plate 11 is equipped with a plurality of and is located in the inside of casing 1, the other side of heat absorption copper block 10 is equipped with heat dissipation fin 12, the outer wall of heat absorption copper block 10 is equipped with mounting bracket 13, and fan 14 is located at the side of heat dissipation fin 12, the outer wall of casing 1 and the both sides are equipped with slide rail 15.

[0032] In this embodiment, the inside of slide rail 15 is slidably provided with a sliding block 16, the motor 4 is bolted and fixed to the sliding block 16 through a machine base, the lower end surface of the casing 1 is fixedly provided with a base 17, the upper end surface of the base 17 is provided with a threaded rod 18, the threaded rod 18 is located at the middle position of the two slide rails 15, the outer wall of the machine base is fixedly provided with a guide block 19 at the upper and lower sides, the guide block 19 is slidably installed with the threaded rod 18, the upper and lower ends of the threaded rod 18 are provided with adjusting nuts 20, and the adjusting nuts 20 are in contact with one side of the guide block 19.

[0033] More specifically, when the temperature of the motor 4 rises, the heat absorption plate 11 will guide the heat inside the heat shield 9 to the upper end of the heat absorption copper block 10, at this time the heat on the heat absorption copper block 10 will be dissipated from the heat shield 9 through the action of the heat dissipation fin 12, and the fan 14 can also be turned on to increase the heat dissipation efficiency of the heat dissipation fin 12, to improve the heat dissipation efficiency of the device, when the tightness of the belt 6 needs to be adjusted, the sliding block 16 can be moved in the slide rail 15 by rotating the adjusting nut 20, thereby driving the motor 4 to move up and down, to adjust the distance between the first pulley 3 and the second pulley 5, to prevent the belt 6 from slipping, and to increase the flexibility of the device in use.

[0034] Please refer to Figure 1 、 Figure 2 and Figure 4As an embodiment of filtering the air entering the inside of the wind box 7: the outer wall of the wind box 7 is fixedly provided with an air inlet pipe 21, one end of the air inlet pipe 21 is provided with a square frame 22, the outer wall of the square frame 22 and the upper and lower sides are both provided with a strip-shaped block 23, the inside of the strip-shaped block 23 is slidably provided with a sliding block 24, the lower end of the sliding block 24 is provided with a latch 25, the inside of the square frame 22 is provided with a filter screen 26, the upper and lower sides of the filter screen 26 are both provided with an insertion slot 27, one end of the latch 25 is located in the inside of the insertion slot 27, the upper end of the sliding block 24 is provided with a pressing spring 28, the other end of the pressing spring 28 is fixedly connected with the inner wall of the strip-shaped block 23, the upper end of the wind box 7 is provided with an air outlet hole 29, and the outer wall of the sliding block 24 is provided with a pushing block 31.

[0035] Specifically, the user can connect the air inlet pipe 21 with the equipment that needs to exhaust, then turn on the motor 4 to make the wind wheel 8 rotate, so that the inside of the wind box 7 generates airflow, and the gas is accelerated to be discharged, and in the process of air intake, the filter screen 26 can filter the dust or large particles in the gas to prevent them from entering the wind box 7 and affecting the service life of the wind wheel 8, and the filter screen 26 can be disassembled and cleaned by moving the pushing block 31 to make one end of the latch 25 away from the insertion slot 27.

[0036] Please refer to Figure 1 As a further embodiment of adjusting the position of the motor 4: the outer wall of the heat shield 9 is provided with an avoidance hole 30, and the output end of the motor 4 is located in the inside of the avoidance hole 30.

[0037] Specifically, the position of the motor 4 can be flexibly adjusted to prevent the belt 6 from slipping.

[0038] In summary, the overall device in use: the user can be connected with the need to exhaust the device 21 air pipe, then open the motor 4 to make the wind wheel 8 rotation, so that the inside of the wind box 7 airflow, in turn, the gas accelerated discharge, and in the process of air intake, filter screen 26 can filter dust or large particles in the gas impurities to prevent them from entering the wind box 7, the service life of the wind wheel 8 impact, subsequent can be removed by moving the block 31 to make the end of the bolt 25 disengaged from the slot 27, to filter screen 26 disassembly and cleaning, when the temperature of the motor 4 increases, the heat sink plate 11 will be the heat inside the heat shield 9 to the upper end of the heat sink copper block 10, the heat sink copper block 10 on the heat will be through the heat dissipation fins 12 effect of heat dissipation heat shield 9, while also can open the fan 14 to make the heat dissipation fins 12 heat dissipation efficiency increases, to improve the heat dissipation efficiency of the device, when the need to adjust the tightness of the belt 6, can be rotated by adjusting the nut 20 to make the slider 16 in the slide rail 15 inside the movement, in turn, to drive the motor 4 to move up and down, to adjust the distance between the first pulley 3 and the second pulley 5, to prevent the belt 6 slip phenomenon, increase the flexibility of the device in use.

[0039] In all the above solutions, the connection between the two components can be selected according to the actual situation, welding, bolt and nut connection, bolt or screw connection or other known connection mode, not here, all the above are involved in the fixed connection, preferably considering is welding, although the embodiments of the utility model have been shown and described, for those skilled in the art, it can be understood that without departing from the principles and spirit of the utility model, a variety of changes, modifications, replacements and modifications can be made to these embodiments, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant centrifugal fan comprising a casing (1) characterised in that: The upper end surface of the casing (1) is provided with bearing seats on both sides, the inside of the bearing seat is rotatably provided with a rotating shaft (2), one end of the rotating shaft (2) is provided with a first pulley (3), the outer wall of the casing (1) is provided with a motor (4), one end of the motor (4) is provided with a second pulley (5), the first pulley (3) and the second pulley (5) are provided with a belt (6), the outer wall of the casing (1) is fixedly provided with a wind box (7), the other end of the rotating shaft (2) passes through the wind box (7) and is provided with a wind wheel (8), the outer end of the motor (4) and one side of the casing (1) are provided with a heat shield (9), the middle position of the heat shield (9) is provided with a heat absorbing copper block (10), one side of the heat absorbing copper block (10) is provided with a heat absorbing plate (11), the heat absorbing plate (11) is provided with a plurality of heat absorbing plates (11) and is located in the inside of the casing (1), the other side of the heat absorbing copper block (10) is provided with a heat dissipation fin (12), the outer wall of the heat absorbing copper block (10) is provided with a mounting bracket (13), the mounting bracket (13) is provided with a fan (14), the fan (14) is located on one side of the heat dissipation fin (12), the outer wall of the casing (1) and both sides are provided with sliding rails (15).

2. A high temperature resistant centrifugal fan as claimed in claim 1, wherein: The inside of the sliding rail (15) is slidably provided with a sliding block (16), the motor (4) is bolted and fixedly installed with the sliding block (16) through the base, the lower end surface of the casing (1) is fixedly provided with a base (17), the upper end surface of the base (17) is provided with a threaded rod (18), the threaded rod (18) is located at the middle position of the two sliding rails (15), the outer wall of the base and the upper and lower sides are fixedly provided with a guide block (19), and the guide block (19) is slidably installed with the threaded rod (18).

3. A high temperature centrifugal fan as claimed in claim 2, wherein: The upper and lower ends of the threaded rod (18) are provided with adjusting nuts (20), and the adjusting nuts (20) are in contact with one side of the guide block (19).

4. The high temperature centrifugal fan of claim 1, wherein: The outer wall of the wind box (7) is fixedly provided with an air inlet pipe (21), one end of the air inlet pipe (21) is provided with a square frame (22), the outer wall of the square frame (22) and the upper and lower sides are provided with strip blocks (23), the inside of the strip block (23) is slidably provided with a sliding block (24), the lower end of the sliding block (24) is provided with a latch (25), the inside of the square frame (22) is provided with a filter screen (26), the upper and lower sides of the filter screen (26) are provided with insertion grooves (27), and one end of the latch (25) is located in the inside of the insertion groove (27).

5. A high temperature centrifugal fan as claimed in claim 4, wherein: The upper end of the sliding block (24) is provided with a pressing spring (28), and the other end of the pressing spring (28) is fixedly connected with the inner wall of the strip block (23).

6. A high temperature centrifugal fan as claimed in claim 1, wherein: The upper end of the wind box (7) is provided with an air outlet hole (29).

7. A high temperature centrifugal fan as claimed in claim 2, wherein: The outer wall of the heat shield (9) is provided with an escape hole (30), and the output end of the motor (4) is located in the inside of the escape hole (30).

8. A high temperature centrifugal fan as claimed in claim 4, wherein: The outer wall of the sliding block (24) is provided with a pushing block (31).

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