Industrial ceiling fans

Abstract

The present invention relates to the field of fan technology, and more specifically to an industrial ceiling fan used in larger venues. The industrial ceiling fan comprises a servo drive motor, fan blades and a fixed suspension rod, and is characterized in that: the servo drive motor comprises a housing, a winding is arranged in the housing, and a rotor is arranged in the winding; the two ends of the rotor are connected to the housing bearing and rotate relative to the winding to form an output end of the rotational torque, a fixed rotating shaft is fixedly provided in the rotor, a tray for supporting the servo drive motor is provided at the lower end of the fixed rotating shaft, and a fan blade rotation fixing plate is fixedly provided at the upper end, and the fan blade rotation fixing plate is fixedly connected to the fan blade; the present invention has a simple and reasonable structure, and by improving the motor, the fan blades and the fixed suspension rod, the ceiling fan can be operated safely and reliably, and the noise generated is small, and the heat dissipation performance of the motor becomes better through the substantial improvement of the heat dissipation structure.

Description

Technical Field

[0001] The invention relates to the technical field of fans, in particular to an industrial ceiling fan used in relatively large venues. Background Art

[0002] Industrial ceiling fans are a common industrial machine widely used in industrial plants, logistics warehouses, waiting rooms, exhibition halls, gymnasiums, supermarkets and other tall spaces for space ventilation and personnel cooling.

[0003] It can push a large amount of airflow to the ground, forming an airflow layer at a certain height on the ground that moves horizontally, thereby promoting overall air circulation. The advantage of this is that it has all-round ground coverage and three-dimensional air circulation, which can achieve natural ventilation and ultra-large coverage area.

[0004] When the weather turns hot, especially in summer, the indoor working temperature in large venues, especially industrial plants, becomes hotter and hotter. The cooling effect of traditional fans is very limited on days with a temperature of more than 30 degrees. It is difficult to achieve the cooling effect by using central air conditioning even without considering the energy consumption problem. Therefore, industrial ceiling fans are a feasible solution.

[0005] Although the existing industrial ceiling fans have many advantages, they still have shortcomings in terms of safety, noise and motor heat dissipation. Due to the huge size of this type of fan blades, some of which can be more than 7 meters long, if the ceiling fan parts, especially the fan blades, fall off, it will cause great harm to the workers below. In addition, since the existing industrial fans are driven by ordinary servo drive motors and reducers, this method produces a lot of noise when the ceiling fan is running. In terms of motors, the existing ceiling fan motors, in addition to the conventional method of using motor heat sinks for cooling, lack a better heat dissipation structure, and the heat dissipation effect is poor, which will inevitably have an adverse effect on the service life of the ceiling fan. Summary of the invention

[0006] In order to overcome the above defects and shortcomings of the prior art, an object of the present invention is to provide an industrial ceiling fan which has safe and reliable operation, generates less noise and has excellent motor heat dissipation performance.

[0007] The technical solution adopted by the present invention to solve the technical problem is:

[0008] The main body of the industrial ceiling fan includes a servo drive motor, fan blades and a fixed suspension rod, wherein the servo drive motor includes a housing, a winding is arranged in the housing, and a rotor is arranged in the winding;

[0009] The two ends of the rotor are connected to the housing bearings and rotate relative to the winding to form the output end of the rotation torque. A fixed shaft is inserted and fixed in the rotor. The lower end of the fixed shaft is provided with a tray for holding up the servo drive motor, and the upper end is fixed with a fan blade rotation fixing plate. The fan blade rotation fixing plate is fixedly connected to the fan blade so that the fan blade holder is placed above the servo drive motor housing. A wire groove for the rope to pass through is opened in the shaft body of the fixed shaft, and the wire groove port passes through the disk surface of the tray;

[0010] The lower end of the fixed suspension rod is fixed to the upper end of the shell to suspend and fix the shell of the servo drive motor, and a first safety rope is provided in the wire groove to tighten the shell and the fixed suspension rod.

[0011] The fan blade cross section is in the shape of a water droplet streamline that bends toward one end, and the blade body has a cavity, a plane end is provided in the cavity, a slot fixing structure is provided on both sides of the plane end, and a block groove is provided at the upper end for the rope to pass through;

[0012] The fan blade rotation fixing plate includes a turntable and a connecting and fixing block arranged around the rotation center of the turntable, the connecting and fixing block corresponds to the plane end in the fan blade cavity, and is tightly fixed on the surface of the plane end as a whole, and a second safety rope is provided in the pressure block groove to tighten the fan blade and the fan blade rotation fixing plate to each other, one end of the second safety rope is fixed to the end of the fan blade, and the other end is fixed to the fan blade rotation fixing plate, and a plurality of mutually locking fixing pins are provided at intervals between the second safety rope and the fan blade.

[0013] A plurality of heat dissipation strips are arranged around the surface of the shell, and the surface of the heat dissipation strips is provided with arc-shaped heat dissipation recesses in a continuous wave shape.

[0014] Preferably, the servo drive motor is a permanent magnet synchronous servo motor, and the servo drive motor comprises a housing, a winding is arranged in the housing, and a rotor is arranged in the winding.

[0015] Preferably, the tray surface is provided with an observation operation groove which passes through to the fixed rotating shaft body, the inner wall of the observation operation groove is arc-shaped, and the wire groove port on the tray surface is provided with a locking block for fixing the end of the first safety rope, and the side of the locking block is provided with a transverse hanging groove, and the end of the first safety rope is inserted into the transverse hanging groove by transverse bending to form a fulcrum for fixing and bearing force on the lower end of the first safety rope.

[0016] Preferably, the fan blade rotation fixing plates are arranged in an odd number, and the fan blade rotation fixing plates include a turntable and a connecting and fixing block arranged around the rotation center of the turntable, and the turntable surface is surrounded by locking holes for locking one end of the second safety rope, and the connecting and fixing block has an inclination angle as a whole, and its surface is provided with installation holes that are locked with the planar end in the fan blade cavity.

[0017] Preferably, the lower end of the fixed hanger is provided with a plurality of vertically arranged connecting holes, which are fixedly connected to the upper end of the shell through the connecting holes to suspend and fix the shell of the servo drive motor. A hanging safety plate is fixedly provided on the rod body of the fixed hanger. The hanging safety plate has a through hole for the rope to pass through. The through holes are evenly arranged, and a plurality of third safety ropes are provided in the holes for tightening the fixed hanger and the shell with the mounting beam for suspending the industrial ceiling fan. The third safety ropes are evenly arranged so that the forces between them are balanced.

[0018] Preferably, the shell has an air outlet at the upper end and is closed at the lower end, and a number of hollows are opened on its outer peripheral surface. A strip-shaped turbine fan blade ring made of a good conductor material is provided between the winding and the inner wall of the shell. The strip-shaped turbine fan blade ring includes a number of blades arranged obliquely in the vertical direction, which are barrel-shaped as a whole and are buckled between the winding and the inner wall of the shell, with a gap between them and no contact with each other. The two ends of the strip-shaped turbine fan blade ring are fixedly connected by bearings.

[0019] Preferably, the blades are arranged to be inclined in a clockwise direction, with the upper part of the blades lower than the direction of the wind from above and the lower part higher than the direction of the wind from above. A windward portion bent in a clockwise angle is also provided above the blades. The length of the windward portion does not exceed one fifth of the total length of the blades. The windward portion is also provided with an inwardly concave arc-shaped wind scoop, and a scoop plate opening at an angle upward is provided below the arc-shaped wind scoop.

[0020] Preferably, an elastic corrugated strip is provided in the pressing block groove, and a threading hole is provided at the raised portion of the corrugated strip, through which the second safety rope can pass.

[0021] Preferably, an adjustment fixing frame is provided at the upper end of the fixed suspension rod, and the adjustment fixing frame includes a connecting plate fixedly connected to the mounting beam for hanging the industrial ceiling fan, and a fixing plate for clamping the fixed suspension rod is provided under the connecting plate, and an arc-shaped angle fixing adjustment hole is provided on the surface of the fixing plate, and a threaded connector for locking the fixed suspension rod and the fixing plate to each other is provided in the angle fixing adjustment hole.

[0022] Preferably, an adjustment fixing frame is provided at the upper end of the fixed suspension rod, and the adjustment fixing frame includes a connecting plate fixedly connected to the mounting beam for hanging the industrial ceiling fan, and a fixing plate for clamping the fixed suspension rod is provided under the connecting plate, and an arc-shaped angle fixing adjustment hole is provided on the surface of the fixing plate, and a joint bearing is provided between the fixing plates, and the joint bearing is connected to the end of the fixed suspension rod, and a threaded connector for locking the fixed suspension rod and the fixing plate with each other is provided in the angle fixing adjustment hole.

[0023] The beneficial effects of the present invention are: the structure is simple and reasonable, and the operation of the ceiling fan is safe and reliable by improving the motor, fan blades and fixed suspension rod, and the noise generated is small. The heat dissipation performance of the motor becomes better through the substantial improvement of the heat dissipation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall structural diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the overall installation structure of the present invention.

[0026] Figure 3 It is a structural diagram of the fixed suspension rod part of the present invention.

[0027] Figure 4 It is a cross-sectional view of the shell structure of the present invention.

[0028] Figure 5 It is a cross-sectional structural diagram of the fan blade of the present invention.

[0029] Figure 6 It is a shell structure diagram of the servo drive motor of the present invention.

[0030] Figure 7 It is an enlarged view of the structure of the heat dissipation strip of the present invention.

[0031] Figure 8 It is a schematic diagram of the structure of a motor with strip-shaped turbine fan blade rings according to the present invention.

[0032] Fig. 9 It is a schematic diagram of the structural principle and installation of the corrugated strip and the second safety rope of the present invention.

[0033] Fig.10 This is an enlarged view of the local structure of the blade.

[0034] Fig.11 It is a structural diagram of an existing large-scale industrial ceiling fan.

[0035] In the figure: 1. Servo drive motor 2. Housing 3. Winding 4. Rotor 5. Fixed shaft 6. Tray 7. Fan blade rotation fixed plate 8. Turntable 9. Connecting fixed block 10. Second safety rope 11. Fixing pin 12. Locking hole 13. Installation hole 14. Wire slot 15. Fan blade 16. Cavity 17. Flat end 18. Card slot fixing structure 19. Block slot 20. Fixed suspension rod 21. First safety rope 22. Connection hole 23. Suspension safety sheet 24. Through hole 25. The third safety rope 26. Heat dissipation strip 27. Arc-shaped heat dissipation recess 28. Observation operation groove 29. Locking block 30. Horizontal hanging groove 31. Air outlet 32. Hollow 33. Strip-shaped turbine fan blade ring 34. Blade 35. Bearing 36. Windward part 37. Corrugated strip 38. Threading hole 39. Adjustment bracket 40. Installation beam 41. Connecting plate 42. Fixing plate 43. Angle fixing adjustment hole 44. Threaded connector 45. Spherical bearing 46. Arc-shaped scoop 47. Scoop plate. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] like Figure 1-9 As shown, the main body of the industrial ceiling fan of the present invention includes a servo drive motor 1, a fan blade 15 and a fixed suspension rod 20. The servo drive motor 1 is a permanent magnet synchronous servo motor. The permanent magnet motor uses a permanent magnet to generate the magnetic field of the motor, does not require an excitation coil or an excitation current, has high efficiency and a simple structure, is convenient and reliable to control, runs smoothly, is energy-saving and environmentally friendly, and has very low noise during operation. The main structure of the servo drive motor 1 includes a housing 2, a winding 3 is arranged in the housing 2, and a rotor 4 is arranged in the winding 3;

[0038] The two ends of the rotor 4 are connected to the bearings 35 of the shell 2 and rotate relative to the winding 3 to form the output end of the rotational torque. At this time, the shell 2 will not rotate with it. A fixed shaft 5 is interspersed and fixed in the rotor 4. The lower end of the fixed shaft 5 is provided with a tray 6 for supporting the servo drive motor 1, and the upper end is fixed with a fan blade 15 rotation fixing plate 7. The fan blade 15 rotation fixing plate 7 is fixedly connected to the fan blade 15 so that the fan blade 15 holder is placed above the shell 2 of the servo drive motor 1. A wire groove 14 for a rope to pass through is opened in the shaft body of the fixed shaft 5, and the end of the wire groove 14 passes through the disk surface of the tray 6. By adopting the fixed shaft 5 and the tray 6 that supports the servo drive motor 1 from the bottom, the ceiling fan body can be firmly fixed. As long as the fixed shaft 5 does not have extreme fracture or breakage, the entire fixed ceiling fan body is almost difficult to fall off.

[0039] Existing industrial fans all use a straight rod shaft and an end threaded hook structure to fix the drive motor. However, as the fan vibrates and swings for a long time, it is inevitable that the structure will loosen and slip, posing a prominent safety hazard.

[0040] like Fig.11 As shown, a sliding industrial ceiling fan (201420361370.3) disclosed in the prior art has a huge fan blade 15 structure which is fixed by being suspended on the lower surface of the rotating structure of the driving motor through threads. This method is not stable enough. As the fan vibrates and swings for a long time, it is inevitable that structural fatigue will occur, which may cause the structure to loosen and slip, causing danger.

[0041] In the scheme of the present invention, this structure is also used to make the fan blade 15 rotating fixing plate 7 and the huge fan blade 15 retaining frame rest on the servo drive motor 1 housing 2. The extremely long fan blade 15 can be fixed and stressed and fixed in a downward pressure manner at its fixed and force-bearing point. Compared with the hanging fixing method, the stability of the structure can be greatly improved. However, after being tightened by the thread, it is almost difficult to fall off. Moreover, by placing the huge fan blade 15 retaining frame on the servo drive motor 1 housing 2, the servo drive motor 1 can be actively cooled by air intake when the fan blade 15 rotates.

[0042] like Figure 3 As shown, the lower end of the fixed suspension rod 20 is fixed to the upper end of the shell 2 to suspend and fix the shell 2 of the servo drive motor 1. A first safety rope 21 is provided in the wire groove 14 to tighten the shell 2 and the fixed suspension rod 20 to each other. An observation operation groove 28 is provided on the disk surface of the tray 6 and passes through the shaft body of the fixed rotating shaft 5. The inner wall of the observation operation groove 28 is arc-shaped. The subsequent maintenance work can be carried out conveniently and quickly through the observation operation groove 28.

[0043] like Figure 4 As shown, as a further explanation of the first safety setting, the end of the wire groove 14 on the surface of the tray 6 is provided with a locking block 29 for fixing the end of the first safety rope 21, and a transverse hanging groove 30 is provided on the side of the locking block 29. The end of the first safety rope 21 is inserted into the transverse hanging groove 30 through transverse bending to form a fulcrum for fixing and bearing force on the lower end of the first safety rope, thereby effectively preventing the first safety rope from escaping.

[0044] Through the above scheme, the problem of the first insurance of the main body of the industrial ceiling fan can be effectively solved. The industrial ceiling fan, especially the servo drive motor 1 part, can be basically safe through the first insurance rope 21 and related structures. The first insurance rope 21 is usually made of steel wire rope or a flexible rope with high strength and toughness.

[0045] like Figure 5As shown, the cross-section of the fan blade 15 is in the shape of a water droplet streamline that is bent toward one end, and the blade body has a cavity 16, in which a plane end 17 is provided, and slot fixing structures 18 are provided on both sides of the plane end 17, and a pressure block groove 19 is provided at the upper end for the rope to pass through; the cavity 16 structure can effectively reduce the weight, and the curved water droplet streamline can generate an air flow that diffuses downward and around when rotating.

[0046] The rotating fixing plate 7 of the fan blade 15 includes a turntable 8 and a connecting and fixing block 9 arranged around the rotation center of the turntable 8. The connecting and fixing block 9 corresponds to the plane end 17 in the cavity 16 of the fan blade 15, and the whole is tightly fixed on the surface of the plane end 17. This method has a large contact and action area, which can effectively avoid the tightness of the connecting and fixing block 9 and the fan blade 15 after being fixed, and effectively avoid the swing caused by vibration fatigue during long-term operation.

[0047] A second safety rope 10 is provided in the pressure block groove 19 for tightening the fan blade 15 and the rotating fixing plate 7 of the fan blade 15 to each other. One end of the second safety rope 10 is fixed to the end of the fan blade 15, and the other end is fixed to the rotating fixing plate 7 of the fan blade 15. A plurality of mutually locked fixing pins 11 are provided at intervals between the second safety rope 10 and the fan blade 15. The second safety rope 10 can form a safety barrier for the huge-sized fan blade 15. The fixing pins 11 arranged at intervals can effectively disperse the force points of the second safety rope 10, and form multiple protection points through multiple fixed fulcrums, so that one point of the second safety rope 10 will not fall off or break, which will eventually cause the fan blade 15 to fall off. The second safety rope 10 is usually made of steel wire rope or a flexible rope with high strength and toughness.

[0048] The rotating fixing plate 7 of the fan blade 15 includes a turntable 8 and a connecting and fixing block 9 arranged around the rotation center of the turntable 8. The disk surface of the turntable 8 is surrounded by a locking hole 12 for locking one end of the second safety rope 10. The connecting and fixing block 9 has an overall inclination, and its surface is provided with an installation hole 13 that is mutually locked with the plane end 17 in the cavity 16 of the fan blade 15. In this way, the second safety rope 10 is fixedly connected to form the safety barrier.

[0049] like Figure 7-8 As shown, a plurality of heat dissipation strips 26 are arranged around the surface of the shell 2, and the surface of the heat dissipation strips 26 is provided with arc-shaped heat dissipation recesses in a continuous wavy shape. The arc-shaped heat dissipation recesses in a continuous wavy shape can effectively increase the heat dissipation area, thereby effectively improving the heat dissipation effect.

[0050] like Figure 1-2As shown, preferably, the fan blade 15 rotating fixing plate 7 is arranged in an odd number. If the fan has an even number of fan blades 15 and forms a symmetrical arrangement, it will not only make it difficult to adjust the balance of the fan itself, but also make it easy for the fan to generate more resonance when running at high speed, resulting in the fan blades 15 being unable to withstand the fatigue caused by the resonance for a long time, and eventually the fan blades 15 will break.

[0051] When the number of fan blades 15 is an odd number, it is impossible to achieve symmetry, and an odd number of fan blades 15 combination can bring more performance advantages than an even number of fan blades 15 combination.

[0052] From the perspective of energy saving, for large industrial ceiling fans, five-blade fans are more cost-effective and energy-efficient, because five-blade fans can form an asymmetric and reasonable mechanical dynamics. When one blade 15 does not have dynamic potential energy, the other two blades are in a potential energy state. The two potential energy blades 15 can naturally easily drive a blade 15 that temporarily does not have potential energy, which can save electricity and energy. Therefore, most designs are designed with an odd number of blades 15 that are asymmetric about the axis.

[0053] On the other hand, since too many blades 15 will shorten the chord length, the curvature of the blades 15 will increase, the adverse pressure gradient will increase, and the airflow will easily separate, resulting in a decrease in efficiency. Therefore, increasing the number of blades 15 is limited by the minimum chord length of the blades 15.

[0054] like Figure 3 As shown, the lower end of the fixed suspension rod 20 is provided with a plurality of vertically arranged connection holes 22, which are fixedly connected to the upper end of the shell 2 through the connection holes 22 to suspend and fix the shell 2 of the servo drive motor 1. A hanging safety piece 23 is fixedly provided on the rod body of the fixed suspension rod 20. The hanging safety piece 23 is provided with a through hole 24 for the rope to pass through. The through holes 24 are evenly arranged, and a plurality of third safety ropes 25 are provided in the holes to tighten the fixed suspension rod 20 and the shell 2 with the installation beam 40 for suspending and installing the industrial ceiling fan. Generally, four third safety ropes 25 are diagonally arranged. The third safety ropes 25 are evenly arranged, and the forces between them are kept balanced to avoid tilting. The installation beam 40 belongs to the structure of the installation site, which can usually be a steel frame on the roof or a fixed beam at a high place of other buildings. It serves as the installation position of the industrial ceiling fan. The third safety rope 25 usually adopts a steel wire rope or a flexible rope with high strength and toughness.

[0055] like Figure 8As shown, as a particularly innovative heat dissipation structure of the servo drive motor 1, the shell 2 has an air outlet 31 at the upper end and is closed at the lower end. A plurality of hollows 32 are provided on the outer surface thereof. The air outlet 31 can quickly receive the air inlet 31 of the fan blade 15 vertically downward, and the hollows 32 can serve as an outlet for rapid heat conduction. A strip-shaped turbine blade ring 33 made of a good conductor material is provided between the winding 3 and the inner wall of the shell. The good conductor material is usually made of copper sheet, brass sheet or aluminum alloy sheet with a moderate cost-effectiveness, and the noise is also relatively small during operation.

[0056] As an efficient heat dissipation structure, the strip-shaped turbine blade ring 33 includes a plurality of blades 34 arranged obliquely in the vertical direction. The strip-shaped turbine blade ring 33 is barrel-shaped as a whole and is buckled between the winding 3 and the inner wall of the outer shell, with a gap between them and no contact with each other. The two ends of the strip-shaped turbine blade ring 33 are fixedly connected by bearings 35 and can receive vertical downward air from the fan blades 15 through the air outlet 31 at the upper end to promote rotation and exhaust. Through this structure, the strip-shaped turbine blade ring 33 can achieve rapid rotation and heat dissipation.

[0057] Combined with Fig.10 As shown, the blade 34 is inclined in the clockwise direction, the upper part of the blade 34 is lower than the direction of the wind from the upper part, and the lower part is higher than the direction of the wind from the upper part. A clockwise inclined windward portion 36 is also provided above the blade 34. The included angle of the windward portion 36 is preferably 15°-25°. The main contribution of the windward portion 36 is to better receive the airflow blown down from the upper blade 15. Through the force of the airflow, the strip-shaped turbine blade ring 33 is further promoted to realize rotation and heat dissipation. Since the strip-shaped turbine blade ring 33 itself has good thermal conductivity The heat dissipation performance of the motor can be greatly improved by the rotation and the heat is quickly dissipated and dissipated from the hollow 32. In addition, the length of the windward portion 36 should not be too long, preferably not more than one fifth of the total length of the blade 34. The windward portion is also provided with an inwardly concave arc-shaped wind scoop 46, and a scoop plate 47 with an upward opening angle is provided below the arc-shaped wind scoop. The arc-shaped wind scoop 46 can greatly increase the overall air volume collected by the blade 34, and the setting of the scoop plate 47 can fully concentrate and utilize the wind force, so that the blade 34 can operate more powerfully and the heat dissipation effect is significant.

[0058] like Fig. 9As shown, an elastic corrugated strip 37 is provided in the pressing block groove 19, and a threading hole 38 is provided on the raised part of the corrugated strip 37, through which the second safety rope 10 can pass. When subjected to force in the up-and-down directions, the force points acting on the second safety rope 10 are divided into several parts by the raised part of the structure. Since the distance of the force-bearing section is greatly shortened, the force intensity of the second safety rope 10 is greatly reduced, and the second safety rope 10 is firmly clamped by its own elasticity and friction properties. Moreover, due to the elastic effect property of the corrugated strip 37 itself, the strength can be controlled with a margin, so that the structure also has good toughness. The corrugated strip 37 can be made of spring steel with elastic tempering treatment or stainless steel or industrial plastic with good elasticity and strength properties.

[0059] At present, the structure fixed by rope traction is completely fixed by the strength and toughness of the rope itself. However, in the high-intensity, continuously operating industrial ceiling fans, the requirements for ropes are relatively higher. If there is no more secure solution, such a large industrial ceiling fan will fall off, which will become very dangerous and pose a great safety hazard.

[0060] like Figure 2-3 As shown, as the installation structure of the fixed hanger 20, an adjustment fixing frame 39 is provided at the upper end of the fixed hanger 20, and the adjustment fixing frame 39 includes a connecting plate 41 fixedly connected to the installation beam 40 for hanging the industrial ceiling fan, and a fixing plate 42 for clamping the fixed hanger 20 is provided under the connecting plate 41. The surface of the fixing plate 42 is provided with an arc-shaped angle fixing adjustment hole 43, and the angle fixing adjustment hole 43 is provided with a threaded connector 44 for locking the fixed hanger 20 and the fixing plate 42 to each other. Through this structure, the installation and horizontal adjustment work can be achieved more quickly.

[0061] As another installation structure for the fixed hanger 20, an adjustment fixing frame 39 is provided at the upper end of the fixed hanger 20, and the adjustment fixing frame 39 includes a connecting plate 41 fixedly connected to the mounting beam 40 for hanging and installing the industrial ceiling fan, and a fixing plate 42 for clamping the fixed hanger 20 is provided below the connecting plate 41, and an arc-shaped angle fixing adjustment hole 43 is provided on the surface of the fixing plate 42, and a joint bearing 45 is provided between the fixing plates 42, and the joint bearing 45 is connected to the end of the fixed hanger 20, and a threaded connector 44 for locking the fixed hanger 20 and the fixing plate 42 with each other is provided in the angle fixing adjustment hole 43, and the joint bearing 45 is a spherical sliding bearing, and its sliding contact surface is an inner spherical surface and an outer spherical surface, which can rotate and swing at any angle during movement, and is capable of good adaptive horizontal adjustment, and has the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning, good lubrication, etc. Through this structure, installation and horizontal adjustment work can be achieved more quickly.

[0062] The structure of the present invention is simple and reasonable. By improving the motor, the fan blades 15 and the fixed suspension rod 20, the ceiling fan can be operated safely and reliably, and the noise generated is small. The heat dissipation performance of the motor is improved by greatly improving the heat dissipation structure.

[0063] The above are merely preferred embodiments for illustration, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

1. Industrial ceiling fan, including servo drive motor, fan blades and fixed suspension rod, characterized in that: The servo drive motor comprises a housing, a winding is arranged in the housing, and a rotor is arranged in the winding; The two ends of the rotor are connected to the housing bearings and rotate relative to the winding to form the output end of the rotation torque. A fixed shaft is inserted and fixed in the rotor. The lower end of the fixed shaft is provided with a tray for holding up the servo drive motor, and the upper end is fixed with a fan blade rotation fixing plate. The fan blade rotation fixing plate is fixedly connected to the fan blade so that the fan blade holder is placed above the servo drive motor housing. A wire groove for the rope to pass through is opened in the shaft body of the fixed shaft, and the wire groove port passes through the disk surface of the tray; The lower end of the fixed suspension rod is fixed to the upper end of the shell to suspend and fix the shell of the servo drive motor, and a first safety rope is provided in the wire groove to tighten the shell and the fixed suspension rod. The fan blade cross section is in the shape of a water droplet streamline that bends toward one end, and the blade body has a cavity, a plane end is provided in the cavity, a slot fixing structure is provided on both sides of the plane end, and a block groove is provided at the upper end for the rope to pass through; The fan blade rotation fixing plate includes a rotating disk and a connecting and fixing block arranged around the rotating center of the rotating disk, the connecting and fixing block corresponds to the plane end in the fan blade cavity, and is tightly fixed on the surface of the plane end as a whole, and a second safety rope is provided in the pressing block groove to tighten the fan blade and the fan blade rotation fixing plate to each other, one end of the second safety rope is fixed to the end of the fan blade, and the other end is fixed to the fan blade rotation fixing plate, and a plurality of mutually locked fixing pins are provided at intervals between the second safety rope and the fan blade; A plurality of heat dissipation strips are arranged around the surface of the shell, and the surface of the heat dissipation strips is provided with arc-shaped heat dissipation recesses in a continuous wave shape; The shell has an air outlet at the upper end and is closed at the lower end. A number of hollows are opened on its outer peripheral surface. A strip-shaped turbine fan blade ring made of a good conductor material is arranged between the winding and the inner wall of the shell. The strip-shaped turbine fan blade ring includes a number of blades arranged obliquely in the vertical direction. The whole is barrel-shaped and buckled between the winding and the inner wall of the shell, with a gap between them and no contact. The two ends of the strip-shaped turbine fan blade ring are fixedly connected by bearings.

2. The industrial ceiling fan according to claim 1, characterized in that: The servo drive motor is a permanent magnet synchronous servo motor, and the servo drive motor comprises a housing, a winding is arranged in the housing, and a rotor is arranged in the winding.

3. The industrial ceiling fan according to claim 1, characterized in that: The tray surface is provided with an observation operation groove which passes through to the fixed rotating shaft body, and the inner wall of the observation operation groove is arc-shaped. The wire groove port on the tray surface is provided with a locking block for fixing the end of the first safety rope. The side of the locking block is provided with a transverse hanging groove. The end of the first safety rope is inserted into the transverse hanging groove by transverse bending to form a fulcrum for fixing and bearing force on the lower end of the first safety rope.

4. The industrial ceiling fan according to claim 1, characterized in that: The fan blade rotation fixing plates are arranged in an odd number, and the fan blade rotation fixing plates include a turntable and a connecting and fixing block arranged around the rotation center of the turntable. The turntable surface is surrounded by a locking hole for locking one end of the second safety rope. The connecting and fixing block has an inclination angle as a whole, and its surface is provided with an installation hole that is locked with the plane end in the fan blade cavity.

5. The industrial ceiling fan according to claim 1, characterized in that: The lower end of the fixed suspension rod is provided with a plurality of vertically arranged connection holes, which are fixedly connected to the upper end of the shell through the connection holes to suspend and fix the shell of the servo drive motor. A suspension safety plate is fixedly provided on the rod body of the fixed suspension rod. The suspension safety plate is provided with a through hole for the rope to pass through. The through holes are evenly arranged, and a plurality of third safety ropes are arranged in the holes to tighten the fixed suspension rod and the shell with the installation beam for suspending the industrial ceiling fan. The third safety ropes are evenly arranged so that the forces between them are kept balanced.

6. The industrial ceiling fan according to claim 1, characterized in that: The blades are arranged to be inclined in the clockwise direction, with the upper part of the blades lower than the direction of the wind from above, and the lower part higher than the direction of the wind from above. A windward portion bent at a clockwise angle is also provided above the blades. The length of the windward portion does not exceed one-fifth of the total length of the blades, and the windward portion is also provided with an inwardly concave arc-shaped wind scoop, and a scoop plate opening at an angle upward is provided below the arc-shaped wind scoop.

7. The industrial ceiling fan according to claim 1, characterized in that: An elastic corrugated strip is arranged in the pressing block groove, and a threading hole is arranged on the raised part of the corrugated strip, through which a second safety rope can pass.

8. The industrial ceiling fan according to claim 1, characterized in that: An adjustment fixing frame is provided at the upper end of the fixed suspension rod, and the adjustment fixing frame includes a connecting plate fixedly connected to the mounting beam for hanging the industrial ceiling fan, and a fixing plate for clamping the fixed suspension rod is provided under the connecting plate, and an arc-shaped angle fixing adjustment hole is provided on the surface of the fixing plate, and a threaded connector for locking the fixed suspension rod and the fixing plate to each other is provided in the angle fixing adjustment hole.

9. The industrial ceiling fan according to claim 1, characterized in that: An adjustment fixing frame is provided at the upper end of the fixed suspension rod, and the adjustment fixing frame includes a connecting plate fixedly connected to the mounting beam for hanging the industrial ceiling fan, and a fixing plate for clamping the fixed suspension rod is provided below the connecting plate, and an arc-shaped angle fixing adjustment hole is provided on the surface of the fixing plate, and a joint bearing is provided between the fixing plates, and the joint bearing is connected to the end of the fixed suspension rod, and a threaded connector for locking the fixed suspension rod and the fixing plate with each other is provided in the angle fixing adjustment hole.

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