Reversible high-temperature-resistant axial-flow type fire-fighting smoke exhaust fan

Abstract

The invention discloses a reversible high-temperature-resistant axial-flow type fire-fighting smoke exhaust fan, and relates to the technical field of axial-flow type fire-fighting smoke exhaust fans, the reversible high-temperature-resistant axial-flow type fire-fighting smoke exhaust fan comprises a machine body, and the outer wall of the machine body is fixedly connected with a motor frame. The gear box wraps the first bevel gear and the second bevel gear and cooperates with lubricating oil for lubrication assistance, the influence of flue gas and fine dust is reduced, the lubricating cooling mechanism can drive the circulating pump body to extract the lubricating oil in the gear box, and the lubricating oil flows circularly through the circulating heat conduction pipe and the backflow pipe, so that the lubricating effect is improved. Meanwhile, the gear box is cooled through the refrigeration end of the semiconductor refrigerator, the heat dissipation end dissipates heat through the second heat dissipation fins, and the refrigeration end of the semiconductor refrigerator and heat around the circulating heat conduction pipe are subjected to cold and hot alternation in the cooling process, so that heat in the lubricating oil is taken away, the temperature of the lubricating oil is reduced, and the service life of the lubricating oil is prolonged. And stable transmission of the first bevel gear and the second bevel gear is ensured, so that stable operation of the axial-flow type fire-fighting smoke exhaust fan is ensured.

Description

Technical Field

[0001] This invention belongs to the technical field of axial flow fire-fighting smoke exhaust fans, and in particular relates to a reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan. Background Technology

[0002] Fire-fighting smoke exhaust fans are special types of fans primarily used to remove smoke and harmful gases from buildings during a fire, thereby reducing the temperature and smoke concentration in areas such as smoke ducts and passageways. Fire-fighting smoke exhaust fans can be classified into axial flow, centrifugal, mixed flow, and oblique flow types based on their structure. Among them, the reversible axial flow fire-fighting smoke exhaust fan is a type of axial flow fire-fighting smoke exhaust fan with forward and reverse rotation capabilities. It can flexibly adjust the airflow direction during a fire to adapt to the smoke exhaust needs of different scenarios. The reversible axial flow fire-fighting smoke exhaust fan achieves forward (smoke exhaust) and reverse (air supply) airflow switching by changing the motor rotation direction or using a special impeller design. This function allows it to quickly exhaust smoke during a fire and also deliver fresh air to specific areas when needed.

[0003] For example, CN213478712U discloses a high-temperature reversible axial flow fan, belonging to the field of fans. It includes a housing, with a switch fixedly installed on the lower front outer wall of the housing, and a motor fixedly installed on the lower right outer wall of the housing. A rotating rod is mounted on the upper end of the motor, penetrating the lower side wall of the housing. A screw head A is fixedly installed on the upper outer wall of the rotating rod. A base plate is fixedly installed on the lower inner wall of the housing center. A screw head B is movably installed on the right end of the base plate. A rotating column is connected to the left end of screw head B, penetrating the base plate. A slot is opened inside the center of the left end of the rotating column, and a rod is inserted into the slot. Screw grooves A are opened on both the upper and lower sides of the rod. By setting up a rotating structure and an embedded fixing structure, the practicality of the axial flow fan is improved.

[0004] The above-mentioned patent has the following defects in use:

[0005] The screw head A and screw head B adopt an open meshing design inside the fan. When used for fire smoke exhaust, the meshing surface of screw head A and screw head B is easily corroded by smoke, high temperature and fine dust. Long-term operation will lead to wear of the meshing surface material, reduce transmission efficiency, and thus affect the operation of the fan. Therefore, this invention proposes a reversible high temperature resistant axial flow fire smoke exhaust fan. Summary of the Invention

[0006] This invention provides a reversible, high-temperature resistant axial flow fire-fighting smoke exhaust fan. A gearbox surrounds the first and second bevel gears and is lubricated with lubricating oil to reduce the impact of smoke and fine dust. A lubrication and cooling mechanism drives a circulating pump to draw lubricating oil from inside the gearbox, circulating it through a heat pipe and a return pipe. Simultaneously, a thermoelectric cooler cools the gearbox, and a second heat dissipation fin dissipates heat from the heat sink. During cooling, the thermoelectric cooler alternates with the heat around the circulating heat pipe, carrying away heat from the lubricating oil and lowering its temperature, ensuring the first... The stable transmission of the bevel gear and the second bevel gear ensures the stable operation of the axial flow fire exhaust fan. The eccentric dust-vibrating mechanism drives multiple collision balls to repeatedly collide with the bottom of the L-shaped frame through eccentric extrusion, using the vibration generated by the collision to shake off the dust attached to the surface of the second heat dissipation fins, reducing interference and facilitating rapid heat dissipation. The injection and replenishment mechanism monitors the lubricating oil level inside the gearbox in real time through an ultrasonic level sensor, and when the level drops to a preset threshold, it promptly injects lubricating oil from the heat-insulated storage cylinder to replenish it, ensuring stable oil levels in the gearbox and preventing wear due to lack of oil. In summary, these measures solve the problems in the background technology.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0008] The present invention provides a reversible, high-temperature resistant axial flow fire-fighting smoke exhaust fan, comprising:

[0009] The machine body has a motor frame fixedly connected to its outer wall, and a servo motor fixedly connected to the inner wall of the motor frame. A rotating rod is fixedly connected to the output end of the servo motor. A fan and a gearbox are respectively installed inside the machine body. A connecting rod is fixedly connected between the top of the gearbox and the inner wall of the machine body. The outer wall of the rotating rod is rotatably connected to the machine body, the motor frame, and the gearbox through bearings. A first bevel gear is sleeved on the outer wall of the rotating rod, and a second bevel gear is meshed with the outer wall of the first bevel gear. A rotating shaft is rotatably connected to one side of the gearbox through bearings, and the two ends of the rotating shaft are fixedly connected to the opposite sides of the second bevel gear and the fan, respectively. Lubricating oil is injected into the inside of the gearbox.

[0010] The lubrication and cooling mechanism and the eccentric dust-vibration mechanism are both located on the outside of the gearbox and are used to cool the lubricating oil inside the gearbox.

[0011] An injection and replenishment mechanism is provided on the gearbox and is used to replenish lubricating oil.

[0012] The lubrication and cooling mechanism includes an L-shaped frame fitted onto the outer wall of the gearbox. The outer wall of the rotating rod is rotatably connected to the L-shaped frame via a bearing. A circulating pump body is provided inside the L-shaped frame, and the top end of the circulating pump body is fixedly connected to the bottom end of the gearbox. A circulating heat conduction pipe is fixedly connected to the bottom end of the gearbox, and the other end of the circulating heat conduction pipe is fixedly connected to the suction end of the circulating pump body. A return pipe is fixedly connected between the discharge end of the circulating pump body and one side of the gearbox. Multiple semiconductor coolers are fixedly connected to the bottom end of the gearbox, and the bottom end of the semiconductor cooler penetrates through the bottom end of the L-shaped frame and extends to its bottom. The top end of the semiconductor cooler is the cooling end, and the bottom end of the semiconductor cooler is the heat dissipation end.

[0013] Furthermore, the outer wall of the motor frame is fixedly connected with a plurality of annularly distributed first heat dissipation fins.

[0014] Furthermore, the circulating heat pipe is serpentine in shape, and multiple semiconductor coolers are arranged in the gaps of the outer wall of the circulating heat pipe, and a heat-conducting layer is provided on the surface of the circulating heat pipe.

[0015] Furthermore, the bottom end of the L-shaped frame is fixedly connected to multiple sleeve frames, and the multiple sleeve frames are respectively fitted onto the bottom of multiple semiconductor coolers, and the bottom end of each of the multiple sleeve frames is fixedly connected to a second heat dissipation fin.

[0016] Furthermore, the eccentric dust-vibrating mechanism includes an eccentric wheel sleeved on the outer wall of the rotating rod. The bottom end of the eccentric wheel is provided with an arc-shaped block in contact with it, and a pair of extrusion rods are fixedly connected to the bottom end of the arc-shaped block. An inner plate is fixedly connected to the inner wall of the L-shaped frame, and a pair of round holes are drilled at the top of the inner plate. The bottom ends of the pair of extrusion rods pass through the pair of round holes and extend to the bottom of the inner plate. A spring is sleeved on the outer wall of each pair of extrusion rods, and the two ends of the springs are fixedly connected to the opposite sides of the arc-shaped block and the inner plate, respectively. A sliding plate is slidably connected inside the L-shaped frame, and the top end of the sliding plate is fixedly connected to the bottom end of the pair of extrusion rods. A plurality of collision balls are fixedly connected to the bottom end of the sliding plate, and the outer walls of the plurality of collision balls are in contact with the bottom end of the inner wall of the L-shaped frame.

[0017] Furthermore, the inner wall of the L-shaped frame is provided with a pair of grooves, and the two sides of the sliding plate are respectively located in the pair of grooves and slidably connected to them.

[0018] Furthermore, the injection and replenishment mechanism includes a heat-insulated storage cylinder fixedly connected to the top of the gearbox. The heat-insulated storage cylinder contains lubricating oil. A guide pipe is fixedly connected to the bottom end of the heat-insulated storage cylinder, and the bottom end of the guide pipe passes through the top of the gearbox and extends into its interior. A control valve is fixedly connected to the guide pipe. An ultrasonic liquid level sensor is installed inside the gearbox, and the ultrasonic liquid level sensor is electrically connected to the control valve through an external main controller.

[0019] Furthermore, the top of the heat-insulating storage cylinder is chiseled with an addition port, and a sealing plug is fitted on the top of the addition port, with the outer wall of the sealing plug in contact with the inner wall of the addition port. Both the surface of the heat-insulating storage cylinder and the sealing plug are provided with a heat-insulating layer.

[0020] Furthermore, both sides of the machine body are provided with filter screens that come into contact with them, and multiple hexagonal bolts are threaded onto the filter screens. Multiple bolt fixing slots are chiseled on both sides of the machine body, and the filter screens are connected to the machine body through hexagonal bolts and bolt fixing slots.

[0021] The present invention has the following advantages over the prior art:

[0022] 1. This technical solution uses a gearbox that surrounds the first and second bevel gears and is lubricated with lubricating oil to reduce the impact of smoke and fine dust. A lubrication and cooling mechanism drives a circulating pump to draw lubricating oil from inside the gearbox, circulating it through a heat pipe and a return pipe. Simultaneously, a semiconductor cooler cools the gearbox, and the heat dissipation end dissipates heat through the second heat dissipation fins. During cooling, the semiconductor cooler's cooling end interacts with the heat around the circulating heat pipe, carrying away heat from the lubricating oil and lowering its temperature. This ensures stable transmission of the first and second bevel gears, thereby guaranteeing the stable operation of the axial flow fire exhaust fan.

[0023] 2. This technical solution uses an eccentric dust-vibrating mechanism to repeatedly squeeze the arc-shaped block at the eccentric end during the rotation of the eccentric wheel, causing multiple collision balls to collide with the bottom of the L-shaped frame. The vibration generated by the collision shakes off the dust adhering to the surface of the second heat dissipation fins, reducing interference and facilitating rapid heat dissipation.

[0024] 3. This technical solution, through the injection and replenishment mechanism, can monitor the level of lubricating oil inside the gearbox in real time using an ultrasonic level sensor. When the level drops to a preset threshold, the control valve operates the guide pipe to open, causing the lubricating oil inside the heat-insulated storage tank to be injected downwards in a timely manner to replenish the gearbox, ensuring a stable oil level and avoiding wear due to lack of oil.

[0025] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to the present invention.

[0028] Figure 2 This is a partial cross-sectional schematic diagram of a reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to the present invention.

[0029] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the body and gearbox in this invention;

[0030] Figure 4 This is a partial cross-sectional schematic diagram of the gearbox, lubrication and cooling mechanism, and injection and replenishment mechanism in this invention;

[0031] Figure 5 This is a partial cross-sectional view of the lubrication and cooling mechanism in this invention from a bottom-view angle;

[0032] Figure 6 This is a partial cross-sectional schematic diagram of the L-shaped frame and the eccentric dust-vibrating mechanism in this invention;

[0033] Figure 7 For the present invention Figure 6 A magnified structural diagram of point A in the middle.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Body; 2. Motor frame; 3. Servo motor; 4. Rotating rod; 5. Fan; 6. Gearbox; 7. First bevel gear; 8. Second bevel gear; 9. Connecting rod; 10. First heat dissipation fin; 11. Lubrication and cooling mechanism; 1101. L-shaped frame; 1102. Circulating heat pipe; 1103. Circulating pump body; 1104. Return pipe; 1105. Semiconductor cooler; 1106. Sleeve frame; 1107. Second heat dissipation fin; 12. Eccentric Dust-vibrating mechanism; 1201, eccentric wheel; 1202, arc-shaped block; 1203, built-in plate; 1204, extrusion rod; 1205, sliding plate; 1206, collision ball; 1207, spring; 1208, chute; 13, injection and replenishment mechanism; 1301, heat-insulated storage cylinder; 1302, guide pipe; 1303, control valve; 1304, ultrasonic liquid level sensor; 1305, filling port; 1306, sealing plug; 14, filter screen. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention. Specific Implementation Example 1:

[0039] Please see Figures 1-7 As shown, the present invention provides a reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan, comprising:

[0040] The machine body 1 has a motor frame 2 fixedly connected to its outer wall, and a servo motor 3 fixedly connected to the inner wall of the motor frame 2. A rotating rod 4 is fixedly connected to the output end of the servo motor 3. A fan 5 and a gearbox 6 are respectively provided inside the machine body 1. A connecting rod 9 is fixedly connected between the top of the gearbox 6 and the inner wall of the machine body 1. The outer wall of the rotating rod 4 is rotatably connected to the machine body 1, the motor frame 2 and the gearbox 6 through bearings. A first bevel gear 7 is sleeved on the outer wall of the rotating rod 4, and a second bevel gear 8 is meshed with the outer wall of the first bevel gear 7. A rotating shaft is rotatably connected to one side of the gearbox 6 through a bearing, and the two ends of the rotating shaft are fixedly connected to the opposite sides of the second bevel gear 8 and the fan 5, respectively. Lubricating oil is injected into the inside of the gearbox 6.

[0041] The lubrication and cooling mechanism 11 and the eccentric dust-vibration mechanism 12 are both located on the outside of the gearbox 6. Both the lubrication and cooling mechanism 11 and the eccentric dust-vibration mechanism 12 are used for cooling the lubricating oil inside the gearbox 6.

[0042] The injection and replenishment mechanism 13 is mounted on the gearbox 6 and is used to replenish lubricating oil.

[0043] The lubrication and cooling mechanism 11 includes an L-shaped frame 1101 sleeved on the outer wall of the gearbox 6. The outer wall of the rotating rod 4 is rotatably connected to the L-shaped frame 1101 through a bearing. The L-shaped frame 1101 is equipped with a circulating pump body 1103. The top end of the circulating pump body 1103 is fixedly connected to the bottom end of the gearbox 6. The bottom end of the gearbox 6 is fixedly connected to a circulating heat conduction pipe 1102. The other end of the circulating heat conduction pipe 1102 is fixedly connected to the suction end of the circulating pump body 1103. The discharge end of the circulating pump body 1103 is fixedly connected to one side of the gearbox 6. The bottom end of the gearbox 6 is fixedly connected to a plurality of semiconductor coolers 1105. The bottom end of the semiconductor cooler 1105 penetrates the inner bottom end of the L-shaped frame 1101 and extends to its bottom. The top end of the semiconductor cooler 1105 is the cooling end, and the bottom end of the semiconductor cooler 1105 is the heat dissipation end.

[0044] In the specific implementation process, the drive servo motor 3 drives the rotating rod 4 to rotate forward and backward, which in turn drives the first bevel gear 7 to rotate forward and backward. Under the lubrication of lubricating oil, the first bevel gear 7 drives the second bevel gear 8 to rotate forward and backward through meshing transmission, which in turn drives the fan 5 to rotate forward and backward, meeting the forward and reverse rotation requirements of fire smoke exhaust. At the same time, the drive circulation pump body 1103 draws lubricating oil from inside the gearbox 6 and circulates it through the circulation heat conduction pipe 1102 and the return pipe 1104. Simultaneously, multiple semiconductor coolers 1105 are driven to absorb heat from inside the gearbox 6 at their cooling ends for cooling and temperature reduction. During the cooling process of the refrigeration end, the surrounding temperature of its top area decreases, and the heat dissipated by the lubricating oil inside the circulating heat pipe 1102 is exchanged between hot and cold to accelerate the dissipation of heat inside the lubricating oil, reduce the temperature of the lubricating oil, and ensure the stable transmission of the first bevel gear 7 and the second bevel gear 8. This ensures the stable operation of the axial flow fire exhaust fan. In actual use, the components of the axial flow fire exhaust fan will be made of appropriate high-temperature resistant materials or undergo appropriate high-temperature insulation treatment. This is common knowledge in the existing technology. Therefore, the specific materials and specific high-temperature insulation treatments will not be described in detail here, but will be determined by the actual application.

[0045] The outer wall of the motor frame 2 is fixedly connected with multiple annularly distributed first heat dissipation fins 10.

[0046] By setting the first heat dissipation fin 10, the heat inside the motor frame 2 can be quickly dissipated to the outside, enhancing the heat dissipation effect.

[0047] The circulating heat pipe 1102 is serpentine in shape, and multiple semiconductor coolers 1105 are arranged in the gaps of the outer wall of the circulating heat pipe 1102. A heat-conducting layer is provided on the surface of the circulating heat pipe 1102.

[0048] The circulating heat pipe 1102 is serpentine in shape, which can extend the flow path of the lubricating oil, increase the contact time between the lubricating oil and the pipe wall, improve the heat exchange efficiency, and allow heat to be transferred more fully from the lubricating oil to the circulating heat pipe 1102 and dissipated outward through the heat-conducting layer. Multiple semiconductor coolers 1105 are arranged in the gaps of the outer wall of the circulating heat pipe 1102. When the cooling end cools down, the ambient temperature decreases, and the heat is exchanged with the heat conducted outward by the circulating heat pipe 1102, so as to accelerate the dissipation of heat inside the lubricating oil and reduce the temperature of the lubricating oil.

[0049] The bottom end of the L-shaped frame 1101 is fixedly connected to multiple sleeve frames 1106, and the multiple sleeve frames 1106 are respectively sleeved on the bottom of multiple semiconductor coolers 1105. The bottom end of each of the multiple sleeve frames 1106 is fixedly connected to a second heat dissipation fin 1107.

[0050] By setting the second heat dissipation fin 1107, heat on the heat dissipation end of the semiconductor cooler 1105 can be guided to dissipate outward, thereby enhancing the heat dissipation effect.

[0051] The eccentric dust-vibrating mechanism 12 includes an eccentric wheel 1201 sleeved on the outer wall of the rotating rod 4. The bottom end of the eccentric wheel 1201 has an arc-shaped block 1202 in contact with it, and a pair of pressing rods 1204 are fixedly connected to the bottom end of the arc-shaped block 1202. An inner plate 1203 is fixedly connected to the inner wall of the L-shaped frame 1101, and a pair of round holes are drilled at the top of the inner plate 1203. The bottom ends of the pair of pressing rods 1204 pass through the pair of round holes and extend to the bottom of the inner plate 1203. Springs 1207 are fitted on the outer walls of the extrusion rods 1204, and the two ends of the springs 1207 are fixedly connected to the opposite sides of the arc-shaped block 1202 and the inner plate 1203, respectively. A sliding plate 1205 is slidably connected inside the L-shaped frame 1101, and the top of the sliding plate 1205 is fixedly connected to the bottom of a pair of extrusion rods 1204. Multiple collision balls 1206 are fixedly connected to the bottom of the sliding plate 1205, and the outer walls of the multiple collision balls 1206 are in contact with the bottom of the inner side of the L-shaped frame 1101.

[0052] When the rotating rod 4 rotates, it drives the eccentric wheel 1201 to rotate. When the eccentric end of the eccentric wheel 1201 comes into contact with the arc-shaped block 1202, it squeezes the arc-shaped block 1202 and a pair of squeezing rods 1204 to move downwards and compresses the spring 1207. This causes the sliding plate 1205 and multiple collision balls 1206 to move downwards and collide with the bottom of the L-shaped frame 1101. This process is repeated to shake off the dust adhering to the surface of the second heat dissipation fin 1107 by the vibration generated by the collision, reducing obstruction and facilitating the rapid dissipation of heat.

[0053] The inner wall of the L-shaped frame 1101 is provided with a pair of grooves 1208, and the two sides of the sliding plate 1205 are respectively located in the pair of grooves 1208 and are slidably connected to them.

[0054] The two sides of the sliding plate 1205 are located in a pair of sliding grooves 1208 and are slidably connected to them, which can assist the sliding plate 1205 to move up and down along the pair of sliding grooves 1208, ensuring stable movement and preventing deviation. Specific Implementation Example 2:

[0056] Please see Figure 1 , Figure 2 and Figure 4 As shown, in a preferred embodiment, the injection and replenishment mechanism 13 includes a heat-insulated storage cylinder 1301 fixedly connected to the top of the gearbox 6. The heat-insulated storage cylinder 1301 is filled with lubricating oil. A guide pipe 1302 is fixedly connected to the bottom end of the heat-insulated storage cylinder 1301. The bottom end of the guide pipe 1302 passes through the top of the gearbox 6 and extends into its interior. A control valve 1303 is fixedly connected to the guide pipe 1302. An ultrasonic liquid level sensor 1304 is provided inside the gearbox 6. The ultrasonic liquid level sensor 1304 is electrically connected to the control valve 1303 through an external main controller.

[0057] In the specific implementation process, the ultrasonic level sensor 1304 is an MB7380 sensor that can emit ultrasonic waves and reflect them back after encountering lubricating oil. The level of lubricating oil is determined by measuring the echo time of the ultrasonic waves from emission to reception, thereby monitoring the level of lubricating oil inside the gearbox 6 in real time. When the level of lubricating oil is detected to be lower than the preset threshold, the control valve 1303 is opened, and the guide pipe 1302 is opened to drive the lubricating oil inside the heat-insulated storage cylinder 1301 to be injected downward in time to replenish it, ensuring the stability of the oil volume in the gearbox 6 and avoiding wear due to lack of oil.

[0058] The heat-insulating storage cylinder 1301 has an inlet 1305 at its top, and a sealing plug 1306 is fitted on the top of the inlet 1305. The outer wall of the sealing plug 1306 is in contact with the inner wall of the inlet 1305. Both the heat-insulating storage cylinder 1301 and the sealing plug 1306 are provided with heat-insulating layers.

[0059] The addition port 1305 allows personnel to easily add lubricating oil into the insulated storage cylinder 1301, and after adding the oil, the sealing plug 1306 is placed on top for sealing and protection. The insulation layer also isolates external heat from affecting the lubricating oil inside the insulated storage cylinder 1301.

[0060] The machine body 1 has filter screens 14 on both sides that are in contact with it, and multiple hexagonal bolts are threaded onto the filter screens 14. Multiple bolt fixing slots are drilled on both sides of the machine body 1, and the filter screens 14 and the machine body 1 are connected by hexagonal bolts and bolt fixing slots.

[0061] The filter 14 can filter and block large dust particles in the flue gas, preventing interference with the rotation of the fan 5. The detachable hexagonal bolt connection allows for easy disassembly of the filter 14, facilitating subsequent cleaning.

[0062] The circuits, electronic components, and chip modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0063] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0064] The working principle of this invention is:

[0065] In use, the invention drives the servo motor 3 to rotate the rotating rod 4, which in turn drives the first bevel gear 7. Lubricated by lubricating oil, the first bevel gear 7 drives the second bevel gear 8 through meshing transmission, which in turn drives the fan 5 to rotate, thus expelling the flue gas. Simultaneously, the driving circulation pump 1103 draws lubricating oil from inside the gearbox 6 and circulates it through the circulating heat pipe 1102 and the return pipe 1104. At the same time, multiple semiconductor coolers 1105 are driven to absorb heat from inside the gearbox 6 at their cooling ends for cooling. During the cooling process of the semiconductor coolers 1105, the surrounding temperature of their top area decreases, creating a hot-cold alternation with the heat dissipated by the lubricating oil inside the circulating heat pipe 1102, accelerating the dissipation of heat from the lubricating oil and lowering its temperature. Meanwhile, the rotating rod 4... When rotating, the eccentric wheel 1201 rotates. When the eccentric end of the eccentric wheel 1201 contacts the arc-shaped block 1202, it squeezes the arc-shaped block 1202 and a pair of squeezing rods 1204 downwards and compresses the spring 1207. This causes the sliding plate 1205 and multiple collision balls 1206 to move downwards and collide with the bottom of the L-shaped frame 1101. This process is repeated, and the vibration generated by the collision shakes off the dust attached to the surface of the second heat dissipation fin 1107, reducing obstruction and facilitating the rapid dissipation of heat. In addition, during the use of lubricating oil, the ultrasonic level sensor 1304 monitors the level of lubricating oil inside the gearbox 6 in real time. When the level of lubricating oil is detected to be lower than the preset threshold, the control valve 1303 is opened, and the conduction pipe 1302 is opened, which drives the lubricating oil inside the heat insulation storage cylinder 1301 to be injected downwards in time to replenish the lubricating oil and ensure the stability of the oil level in the gearbox 6.

[0066] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reversible, high-temperature resistant axial flow fire-fighting smoke exhaust fan, characterized in that, include: The machine body (1) has a motor frame (2) fixedly connected to its outer wall, and a servo motor (3) fixedly connected to the inner wall of the motor frame (2). A rotating rod (4) is fixedly connected to the output end of the servo motor (3). A fan (5) and a gearbox (6) are respectively provided inside the machine body (1). A connecting rod (9) is fixedly connected between the top of the gearbox (6) and the inner wall of the machine body (1). The outer wall of the rotating rod (4) is rotatably connected to the machine body (1), the motor frame (2) and the gearbox (6) through bearings. A first bevel gear (7) is sleeved on the outer wall of the rotating rod (4). A second bevel gear (8) is meshed on the outer wall of the first bevel gear (7). A rotating shaft is rotatably connected to one side of the gearbox (6) through a bearing. The two ends of the rotating shaft are fixedly connected to the opposite sides of the second bevel gear (8) and the fan (5) respectively. Lubricating oil is injected into the inside of the gearbox (6). The lubrication cooling mechanism (11) and the eccentric dust-vibrating mechanism (12) are both located on the outside of the gearbox (6). The lubrication cooling mechanism (11) and the eccentric dust-vibrating mechanism (12) are both used for cooling the lubricating oil inside the gearbox (6). An injection and replenishment mechanism (13) is provided on the gearbox (6) and is used to replenish lubricating oil; The lubrication and cooling mechanism (11) includes an L-shaped frame (1101) sleeved on the outer wall of the gearbox (6). The outer wall of the rotating rod (4) is rotatably connected to the L-shaped frame (1101) through a bearing. The L-shaped frame (1101) is equipped with a circulating pump body (1103), and the top end of the circulating pump body (1103) is fixedly connected to the bottom end of the gearbox (6). The bottom end of the gearbox (6) is fixedly connected to a circulating heat pipe (1102), and the other end of the circulating heat pipe (1102) is connected to the circulating heat pipe. The suction end of the pump body (1103) is fixedly connected, and the discharge end of the circulating pump body (1103) is fixedly connected to one side of the gearbox (6) with a return pipe (1104). The bottom end of the gearbox (6) is fixedly connected with multiple semiconductor coolers (1105), and the bottom end of the semiconductor cooler (1105) penetrates the bottom end of the L-shaped frame (1101) and extends to its bottom. The top end of the semiconductor cooler (1105) is the cooling end, and the bottom end of the semiconductor cooler (1105) is the heat dissipation end.

2. The reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that, The outer wall of the motor frame (2) is fixedly connected with a plurality of annularly distributed first heat dissipation fins (10).

3. The reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that, The circulating heat pipe (1102) is serpentine in shape, and multiple semiconductor coolers (1105) are arranged in the gaps of the outer wall of the circulating heat pipe (1102). A heat-conducting layer is provided on the surface of the circulating heat pipe (1102).

4. The reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that, The bottom end of the L-shaped frame (1101) is fixedly connected to a plurality of sleeve frames (1106), and the plurality of sleeve frames (1106) are respectively sleeved on the bottom of a plurality of semiconductor coolers (1105). The bottom end of each of the plurality of sleeve frames (1106) is fixedly connected to a second heat dissipation fin (1107).

5. A reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that, The eccentric dust-vibrating mechanism (12) includes an eccentric wheel (1201) sleeved on the outer wall of the rotating rod (4). The bottom end of the eccentric wheel (1201) is provided with an arc-shaped block (1202) in contact with it. A pair of pressing rods (1204) are fixedly connected to the bottom end of the arc-shaped block (1202). An inner plate (1203) is fixedly connected to the inner wall of the L-shaped frame (1101). A pair of round holes are drilled at the top of the inner plate (1203). The bottom ends of the pair of pressing rods (1204) pass through the pair of round holes and extend to the bottom of the inner plate (1203). The outer wall of each of the extrusion rods (1204) is fitted with a spring (1207), and the two ends of the spring (1207) are fixedly connected to the opposite sides of the arc block (1202) and the inner plate (1203), respectively. The L-shaped frame (1101) is slidably connected to a sliding plate (1205), and the top of the sliding plate (1205) is fixedly connected to the bottom of a pair of extrusion rods (1204). The bottom of the sliding plate (1205) is fixedly connected to a plurality of collision balls (1206), and the outer walls of the plurality of collision balls (1206) are in contact with the bottom of the inner wall of the L-shaped frame (1101).

6. A reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 5, characterized in that, The inner wall of the L-shaped frame (1101) is provided with a pair of sliding grooves (1208), and the two sides of the sliding plate (1205) are respectively located in the pair of sliding grooves (1208) and are slidably connected to them.

7. A reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that, The injection and replenishment mechanism (13) includes a heat-insulated storage cylinder (1301) fixedly connected to the top of the gearbox (6). The heat-insulated storage cylinder (1301) is filled with lubricating oil. A guide pipe (1302) is fixedly connected to the bottom end of the heat-insulated storage cylinder (1301). The bottom end of the guide pipe (1302) passes through the top of the gearbox (6) and extends into its interior. A control valve (1303) is fixedly connected to the guide pipe (1302). An ultrasonic liquid level sensor (1304) is provided inside the gearbox (6). The ultrasonic liquid level sensor (1304) is electrically connected to the control valve (1303) through an external main controller.

8. A reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 7, characterized in that, The top of the heat-insulating storage cylinder (1301) is provided with an inlet (1305), and a sealing plug (1306) is fitted on the top of the inlet (1305). The outer wall of the sealing plug (1306) is in contact with the inner wall of the inlet (1305). Both the surface of the heat-insulating storage cylinder (1301) and the sealing plug (1306) are provided with a heat-insulating layer.

9. A reversible high-temperature resistant axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that, Both sides of the body (1) are provided with filter screens (14) that are in contact with it, and multiple hexagonal bolts are threaded on the filter screens (14). Multiple bolt fixing grooves are drilled on both sides of the body (1), and the filter screens (14) and the body (1) are connected by hexagonal bolts and bolt fixing grooves.

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