Automatic steering device for controlling axial flow fan
By adjusting the elevation and horizontal angles of the automatic steering device, the problem of fixed heat dissipation direction of axial flow fans is solved, and multi-directional heat dissipation and power failure safety protection of transformers are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHUANGROU DISPLAY TECH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-26
AI Technical Summary
The existing axial flow fans have a fixed heat dissipation direction, which makes it impossible to blow air onto the high-temperature parts of the transformer in real time to cool them down.
An automatic steering device is adopted, including an elevation adjustment frame, worm gear, worm wheel, motor and level adjustment mechanism. The temperature sensor detects the transformer temperature and controls the airflow direction and elevation adjustment of the fan to achieve multi-directional heat dissipation of the fan.
It enables flexible adjustment of the airflow direction of the axial flow fan, can take into account the heat dissipation needs of transformers in multiple directions, and prevents the equipment from tilting in the event of a power outage, thus improving safety.
Smart Images
Figure CN224284114U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of axial flow fan control equipment technology, and in particular to an automatic steering device for controlling axial flow fans. Background Technology
[0002] Axial flow fans are a commonly used type of cooling fan for transformers. Chinese utility model patent CN220101638U discloses an axial flow fan for transformer cooling, comprising: a fan housing; a protective net fixedly connected to the fan housing; a first fixing block fixedly connected to one side of the protective net; a first rotating shaft rotatably connected to the first fixing block; a first knob fixedly connected to the first rotating shaft; a first locking block fixedly connected to the first rotating shaft; a first mounting block fixedly connected to one side of the fan housing; a second fixing block fixedly connected to the other side of the protective net; a second rotating shaft rotatably connected to the second fixing block; a second knob fixedly connected to the second rotating shaft; a second locking block fixedly connected to the second rotating shaft; and a second mounting block fixedly connected to the other side of the fan housing. However, the axial flow fan in this patent has a fixed orientation, allowing cooling only in one direction and preventing real-time cooling of the high-temperature areas of the transformer. Utility Model Content
[0003] One of the technical problems that this disclosure aims to solve is that in the prior art, the heat dissipation direction of axial flow fans is fixed, and it is impossible to blow air to cool down the high-temperature parts of the transformer in real time.
[0004] To solve the above-mentioned technical problems, this disclosure provides an automatic steering device for controlling an axial flow fan, including a fixed mounting frame, an elevation adjustment frame, an elevation adjustment lever, an elevation adjustment worm gear, an elevation adjustment motor, and a horizontal adjustment mechanism. A horizontal mounting shaft is horizontally mounted on the top of the fixed mounting frame. The elevation adjustment frame is rotatably mounted on the horizontal mounting shaft. A semi-circular gear disk is mounted on the lower end face of the elevation adjustment frame, with the axis of the semi-circular gear disk overlapping the axis of the horizontal mounting shaft. The elevation adjustment worm gear is rotatably mounted on the fixed mounting frame, and the elevation adjustment motor is drively connected to the elevation adjustment worm gear. The elevation adjustment lever is rotatably mounted on the fixed mounting frame and parallel to the horizontal mounting shaft. An elevation adjustment gear and an elevation adjustment worm wheel are mounted on the elevation adjustment lever. The elevation adjustment gear meshes with the semi-circular gear disk, and the elevation adjustment worm wheel meshes with the elevation adjustment worm gear. The horizontal adjustment mechanism is located on the upper end face of the elevation adjustment frame.
[0005] In some embodiments, the horizontal adjustment mechanism includes a horizontal adjustment motor, a horizontal adjustment base plate, and a horizontal adjustment top plate. The horizontal adjustment base plate is fixedly mounted on the upper end face of the elevation adjustment frame, the horizontal adjustment motor is mounted on the horizontal adjustment base plate, and the horizontal adjustment top plate is rotatably mounted on the upper end face of the horizontal adjustment base plate. The horizontal adjustment motor and the horizontal adjustment top plate are connected in a transmission connection.
[0006] In some embodiments, a limiting groove is provided around the side end of the horizontal adjustment base plate, and a plurality of limiting rollers are provided on the side wall of the horizontal adjustment top plate, with the limiting rollers embedded in the limiting groove.
[0007] In some embodiments, a drive bearing is provided at the position where the horizontal axis contacts the elevation adjustment bracket.
[0008] In some embodiments, two semi-circular gear disks and two elevation adjustment gears are provided respectively, with the two semi-circular gear disks located on both sides of the elevation adjustment frame, and the two elevation adjustment gears meshing with the semi-circular gear disks on both sides respectively.
[0009] In some embodiments, both the elevation adjustment worm and the elevation adjustment worm wheel are located between the two elevation adjustment gears.
[0010] In some embodiments, the fixed mounting bracket includes a support base and a lifting frame, the lifting frame being vertically mounted on the support base, and an elevation adjustment bracket being disposed on top of the lifting frame.
[0011] In some embodiments, the lifting frame includes a lower support leg, an upper support leg, and a lifting motor. The upper support leg is slidably sleeved on the lower support leg. A lifting rack is provided on the inner side of the lower support leg and inserted into the upper support leg. A lifting gear is provided on the lower side of the upper support leg and meshes with the lifting rack. The lifting motor is installed on the outer wall of the upper support leg and is connected to the lifting gear for transmission.
[0012] In some embodiments, the lifting frame includes a lower support leg and an upper support leg. The upper support leg is slidably sleeved on the lower support leg. A hydraulic push rod is vertically arranged downward on the inner side of the upper support leg. A piston head is provided on the lower end face of the hydraulic push rod. A driving oil chamber is provided on the inner side of the lower support leg. The hydraulic push rod and the piston head are both slidably arranged in the driving oil chamber. An oil inlet and an oil outlet are provided on the side wall of the lower support leg.
[0013] The automatic steering device for controlling an axial flow fan provided by the above technical solution has the following beneficial effects:
[0014] Firstly, this solution uses an elevation adjustment motor to drive an elevation adjustment worm gear to rotate. The worm gear, in conjunction with the worm wheel, drives the elevation adjustment lever to rotate. This rotation of the lever synchronously rotates the elevation adjustment gear. The gear, in turn, works with a semi-circular gear disc to control the elevation adjustment frame, the horizontal adjustment mechanism, and the axial flow fan, all adjusting the elevation angle simultaneously. The horizontal adjustment mechanism drives the axial flow fan, thus controlling the airflow direction and height adjustment of the axial flow fan. Temperature sensors are installed on the transformer equipment around the automatic steering device. When a temperature sensor detects that the transformer temperature is too high, it transmits the data to a microcontroller, which then controls the elevation adjustment motor and the horizontal adjustment mechanism to adjust the airflow direction of the axial flow fan, ensuring comprehensive transformer cooling from multiple directions.
[0015] Secondly, in this solution, the elevation angle of the axial flow fan is adjusted by the cooperation of the elevation adjustment worm gear and the elevation adjustment worm. Therefore, when the equipment is suddenly powered off during operation, the elevation adjustment worm gear and the elevation adjustment worm remain in a meshed and locked state, thereby preventing the pressure caused by the imbalance of the equipment elevation angle under the power failure state from causing the axial flow fan to tilt and fall, thus creating a safety hazard. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment disclosed in this disclosure;
[0018] Figure 2 This is a front view of an embodiment disclosed in this disclosure;
[0019] Figure 3 This is a cross-sectional view disclosed in the embodiments of this disclosure;
[0020] Figure 4 yes Figure 3 Enlarged structural diagram at point A;
[0021] Figure 5 A schematic diagram showing the disassembled structure of the semi-circular gear disk, the elevation adjustment rod, and the elevation adjustment worm gear;
[0022] Figure 6 This is a structural schematic diagram of Embodiment 1 of the lifting frame disclosed in this embodiment;
[0023] Figure 7 This is a schematic diagram of the second embodiment of the lifting frame disclosed in this disclosure.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Fixed mounting bracket; 11. Mounting horizontal shaft; 12. Support base; 13. Lifting vertical frame; 131. Lower support leg; 1311. Lifting rack; 1312. Drive oil chamber; 132. Upper support leg; 1321. Lifting gear; 1322. Hydraulic push rod; 1323. Piston head; 133. Lifting motor; 2. Elevation adjustment frame; 21. Semi-circular gear disc; 3. Elevation adjustment rotating rod; 31. Elevation adjustment gear; 32. Elevation adjustment worm gear; 4. Elevation adjustment worm; 5. Elevation adjustment motor; 6. Horizontal adjustment mechanism; 61. Horizontal adjustment motor; 62. Horizontal adjustment base plate; 621. Limiting groove; 63. Horizontal adjustment top plate; 631. Limiting roller; 7. Drive bearing. Detailed Implementation
[0026] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0027] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values set forth in these embodiments should be interpreted as exemplary only and not as limiting.
[0028] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0029] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.
[0030] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.
[0031] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as having idealized or highly formalized meanings, unless expressly defined herein.
[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0033] like Figure 1-7As shown, an automatic steering device for controlling an axial flow fan includes a fixed mounting frame 1, an elevation adjustment frame 2, an elevation adjustment lever 3, an elevation adjustment worm gear 4, an elevation adjustment motor 5, and a horizontal adjustment mechanism 6. A horizontal mounting shaft 11 is horizontally mounted on the top of the fixed mounting frame 1. The elevation adjustment frame 2 is rotatably mounted on the horizontal mounting shaft 11 and can rotate axially about the horizontal mounting shaft 11. A semi-circular gear disk 21 is provided on the lower end face of the elevation adjustment frame 2, and the axis of the semi-circular gear disk 21 overlaps with the axis of the horizontal mounting shaft 11. The elevation adjustment worm gear 4 is rotatably mounted on the fixed mounting frame 1, and the elevation adjustment motor 5 is drively connected to the elevation adjustment worm gear 4. The elevation adjustment lever 3 is rotatably mounted on the fixed mounting frame 1 and is parallel to the horizontal mounting shaft 11. An elevation adjustment gear 31 and an elevation adjustment worm gear 32 are provided on the elevation adjustment lever 3. The elevation adjustment gear 31 meshes with the semi-circular gear disk 21, and the elevation adjustment worm gear 32 meshes with the elevation adjustment worm 4. The horizontal adjustment mechanism 6 is located on the upper surface of the elevation adjustment frame 2, and the axial flow fan is installed on the upper surface of the horizontal adjustment mechanism 6. In use, the elevation adjustment worm 4 is driven to rotate by the elevation adjustment motor 5. The elevation adjustment worm 4 and the elevation adjustment worm gear 32 work together to drive the elevation adjustment rod 3 to rotate. The rotation of the elevation adjustment rod 3 synchronously causes the elevation adjustment gear 31 to rotate. The interaction between the elevation adjustment gear 31 and the semi-circular gear disk 21 controls the elevation adjustment frame 2, the horizontal adjustment mechanism 6 and the axial flow fan to adjust the elevation angle synchronously. The horizontal adjustment mechanism 6 drives the axial flow fan to rotate, thereby controlling the direction and height of the airflow output by the axial flow fan.
[0034] Based on the above, in this solution, corresponding temperature sensors are installed on the transformer equipment around the automatic steering device. When the temperature sensor detects that the current transformer temperature is too high, it transmits the corresponding data to the microcontroller, which controls the elevation adjustment motor 5 and the horizontal adjustment mechanism 6 to adjust the airflow direction of the axial flow fan, so that it can take into account the heat dissipation of the transformer from multiple directions.
[0035] It is conceivable that in this solution, the elevation angle of the axial flow fan is adjusted by the cooperation of the elevation angle adjusting worm gear 32 and the elevation angle adjusting worm 4. Therefore, when the equipment suddenly loses power during operation, the elevation angle adjusting worm gear 32 and the elevation angle adjusting worm 4 are still in a meshed and locked state, thereby preventing the pressure generated by the imbalance of the equipment elevation angle under the power failure state from causing the axial flow fan to tilt and fall, thus creating a safety hazard.
[0036] In some embodiments, the horizontal adjustment mechanism 6 includes a horizontal adjustment motor 61, a horizontal adjustment base plate 62, and a horizontal adjustment top plate 63. The horizontal adjustment base plate 62 is fixedly mounted on the upper end face of the elevation adjustment frame 2. The horizontal adjustment motor 61 is mounted on the horizontal adjustment base plate 62. The horizontal adjustment top plate 63 is rotatably mounted on the upper end face of the horizontal adjustment base plate 62. The horizontal adjustment motor 61 is connected to the horizontal adjustment top plate 63 for transmission. An axial flow fan is mounted on the horizontal adjustment top plate 63. The horizontal adjustment motor 61 can drive the horizontal adjustment top plate 63 to rotate axially, thereby controlling the axial flow fan on the horizontal adjustment top plate 63 to adjust the wind direction.
[0037] In some embodiments, a limiting groove 621 is provided around the side perimeter of the horizontal adjustment base plate 62, and a plurality of limiting rollers 631 are provided on the side wall of the horizontal adjustment top plate 63. The limiting rollers 631 are embedded in the limiting grooves 621. The transmission stability of the horizontal adjustment base plate 62 and the horizontal adjustment top plate 63 is improved by the cooperation of the limiting rollers 631 and the limiting grooves 621. On this basis, the number of limiting rollers 631 is not less than three.
[0038] In some embodiments, a drive bearing 7 is provided at the position where the horizontal shaft 11 contacts the elevation adjustment frame 2. The drive bearing 7 can reduce the friction when the elevation adjustment frame 2 rotates, thereby improving the adjustment stability of the equipment.
[0039] In some embodiments, two semi-circular gear disks 21 and two elevation adjustment gears 31 are respectively provided. The two semi-circular gear disks 21 are respectively located on both sides of the elevation adjustment frame 2, and the two elevation adjustment gears 31 mesh with the semi-circular gear disks 21 on both sides, so that the power of the elevation adjustment frame 2 is input from both sides during adjustment, thereby improving the power transmission stability of the elevation adjustment frame 2. On this basis, the elevation adjustment worm 4 and the elevation adjustment worm wheel 32 are both located between the two elevation adjustment gears 31, thereby improving the transmission stability of the elevation adjustment worm 4 and the elevation adjustment worm wheel 32.
[0040] In some embodiments, the fixed mounting bracket 1 includes a support base 12 and a lifting frame 13, the lifting frame 13 being vertically mounted on the support base 12, and the elevation adjustment bracket 2 being disposed on the top of the lifting frame 13.
[0041] Implementation method 1 of the lifting frame 13: The lifting frame 13 includes a lower support leg 131, an upper support leg 132, and a lifting motor 133. The upper support leg 132 is slidably sleeved on the lower support leg 131. A lifting rack 1311 is provided on the inner side of the lower support leg 131. The lifting rack 1311 is inserted into the upper support leg 132. A lifting gear 1321 is provided on the lower side of the upper support leg 132. The lifting gear 1321 meshes with the lifting rack 1311. The lifting motor 133 is installed on the outer wall of the upper support leg 132 and is connected to the lifting gear 1321 for transmission. In use, the lifting motor 133 drives the lifting gear 1321 to rotate. The upper support leg 132 is driven to move vertically by the cooperation of the lifting gear 1321 and the lifting rack 1311.
[0042] Embodiment 1 of the lifting vertical frame 13: The lifting vertical frame 13 includes a lower support leg 131 and an upper support leg 132. The upper support leg 132 is slidably sleeved on the lower support leg 131. A hydraulic push rod 1322 is vertically arranged downward on the inner side of the upper support leg 132. A piston head 1323 is provided on the lower end face of the hydraulic push rod 1322. A driving oil chamber 1312 is provided on the inner side of the lower support leg 131. The hydraulic push rod 1322 and the piston head 1323 are both slidably arranged in the driving oil chamber 1312. An oil inlet is provided on the side wall of the lower support leg 131. The system has an inlet and an outlet, where corresponding hydraulic oil equipment is connected. When the lifting frame 13 needs to be raised, oil is injected into the drive oil chamber 1312 through the inlet. The oil in the drive oil chamber 1312 pushes the piston head 1323 and the hydraulic push rod 1322 to move upward, thus raising the lifting frame 13. When the lifting frame 13 needs to be lowered, the oil in the drive oil chamber 1312 is extracted through the outlet. At this time, the piston head 1323 and the hydraulic push rod 1322 move downward, thus lowering the lifting frame 13.
[0043] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0044] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.
Claims
1. An automatic turning device for controlling a propeller fan, characterized in that The system includes a fixed mounting bracket (1), an elevation adjustment bracket (2), an elevation adjustment lever (3), an elevation adjustment worm gear (4), an elevation adjustment motor (5), and a horizontal adjustment mechanism (6). A horizontal mounting shaft (11) is horizontally mounted on the top of the fixed mounting bracket (1). The elevation adjustment bracket (2) is rotatably mounted on the horizontal mounting shaft (11). A semi-circular gear disk (21) is mounted on the lower end face of the elevation adjustment bracket (2), with the axis of the semi-circular gear disk (21) overlapping the axis of the horizontal mounting shaft (11). The elevation adjustment worm gear (4) is rotatably mounted on the fixed mounting bracket. (1) The elevation adjustment motor (5) is connected to the elevation adjustment worm gear (4) for transmission. The elevation adjustment rotating rod (3) is rotatably mounted on the fixed mounting frame (1) and is parallel to the mounting horizontal axis (11). The elevation adjustment rotating rod (3) is provided with an elevation adjustment gear (31) and an elevation adjustment worm wheel (32). The elevation adjustment gear (31) meshes with the semi-circular gear disk (21). The elevation adjustment worm wheel (32) meshes with the elevation adjustment worm gear (4). The horizontal adjustment mechanism (6) is located on the upper end face of the elevation adjustment frame (2).
2. The automatic steering device for controlling an axial flow fan according to claim 1, characterized in that, The horizontal adjustment mechanism (6) includes a horizontal adjustment motor (61), a horizontal adjustment base plate (62), and a horizontal adjustment top plate (63). The horizontal adjustment base plate (62) is fixedly mounted on the upper end face of the elevation adjustment frame (2). The horizontal adjustment motor (61) is mounted on the horizontal adjustment base plate (62). The horizontal adjustment top plate (63) is rotatably mounted on the upper end face of the horizontal adjustment base plate (62). The horizontal adjustment motor (61) and the horizontal adjustment top plate (63) are connected in a transmission manner.
3. The automatic steering device for controlling an axial flow fan according to claim 2, characterized in that, The side perimeter of the horizontal adjustment base plate (62) is provided with a limiting groove (621), and the side wall of the horizontal adjustment top plate (63) is provided with multiple limiting rollers (631), which are embedded in the limiting groove (621).
4. The automatic steering device for controlling an axial flow fan according to claim 1, characterized in that, A drive bearing (7) is provided at the position where the mounting horizontal shaft (11) contacts the elevation adjustment frame (2).
5. The automatic steering device for controlling an axial flow fan according to claim 1, characterized in that, Two semi-circular gear disks (21) and two elevation adjustment gears (31) are respectively provided. The two semi-circular gear disks (21) are located on both sides of the elevation adjustment frame (2), and the two elevation adjustment gears (31) mesh with the semi-circular gear disks (21) on both sides respectively.
6. The automatic steering device for controlling an axial flow fan according to claim 5, characterized in that, The elevation adjustment worm (4) and elevation adjustment worm wheel (32) are both located between the two elevation adjustment gears (31).
7. The automatic steering device for controlling an axial flow fan according to claim 1, characterized in that, The fixed mounting frame (1) includes a support base (12) and a lifting frame (13). The lifting frame (13) is vertically mounted on the support base (12), and the elevation adjustment frame (2) is located on the top of the lifting frame (13).
8. The automatic steering device for controlling an axial flow fan according to claim 7, characterized in that, The lifting frame (13) includes a lower support leg (131), an upper support leg (132), and a lifting motor (133). The upper support leg (132) is slidably sleeved on the lower support leg (131). A lifting rack (1311) is provided on the inner side of the lower support leg (131). The lifting rack (1311) is inserted into the upper support leg (132). A lifting gear (1321) is provided on the lower side of the upper support leg (132). The lifting gear (1321) meshes with the lifting rack (1311). The lifting motor (133) is installed on the outer side wall of the upper support leg (132) and is connected to the lifting gear (1321) for transmission.
9. The automatic steering device for controlling an axial flow fan according to claim 7, characterized in that, The lifting frame (13) includes a lower support leg (131) and an upper support leg (132). The upper support leg (132) is slidably sleeved on the lower support leg (131). A hydraulic push rod (1322) is vertically arranged downward on the inner side of the upper support leg (132). A piston head (1323) is arranged on the lower end face of the hydraulic push rod (1322). A driving oil chamber (1312) is arranged on the inner side of the lower support leg (131). The hydraulic push rod (1322) and the piston head (1323) are both slidably arranged in the driving oil chamber (1312). An oil inlet and an oil outlet are arranged on the side wall of the lower support leg (131).