Fan inlet mechanical defrosting device

Abstract

The utility model discloses a mechanical defrosting device for a fan inlet, and relates to the technical field of fans. The mechanical defrosting device for the fan inlet comprises a long-shaft brush, the long-shaft brush is of a cylindrical structure, the two ends of the long-shaft brush are connected with an upper frame and a lower frame of the fan inlet in a sliding mode, and bristles of the long-shaft brush make contact with a filter screen of the fan inlet; the rack is fixedly connected to the upper side of the fan inlet, and the length direction of the rack is perpendicular to the axis of the long-axis brush; the walking gear is arranged on the rack in a meshed mode, and the axis of the walking gear is parallel to the axis of the long-shaft brush; an output shaft of the driving motor is coaxially and fixedly connected with the walking gear, and the driving motor is slidably connected to the conductive groove; and the walking gear is in transmission connection with the long shaft brush through the driving mechanism.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, specifically to a mechanical defrosting device for wind turbine inlets. Background Technology

[0002] A fan is a device that generates and moves gas through mechanical means, and it is widely used in industrial, commercial, and civil applications. Its main function is to generate a pressure difference through a rotating impeller, thereby driving the flow of air or other gases to achieve purposes such as ventilation, air exchange, cooling, and transportation.

[0003] In northern regions, during the fluctuating temperatures of warm and cold weather, frost is a frequent occurrence, which can easily disrupt normal production for businesses. During operation, especially in winter, factory fans often experience frost at their air inlets, leading to reduced or even no air intake, thus preventing the fans from functioning properly and impacting machine production efficiency. Utility Model Content

[0004] Therefore, this utility model provides a mechanical defrosting device for a fan inlet to solve the problems existing in the above-mentioned technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mechanical defrosting device for a fan inlet, characterized in that it comprises:

[0007] A long-shaft brush, which has a cylindrical structure, has its two ends slidably connected to the upper and lower side frames of the fan inlet, and the bristles of the long-shaft brush are in contact with the fan inlet filter.

[0008] A rack is fixedly connected to the upper side of the fan inlet, and the length direction of the rack is perpendicular to the axis of the long shaft brush.

[0009] The traveling gear is meshed on the rack, and the axis of the traveling gear is parallel to the axis of the long shaft brush.

[0010] A drive motor, wherein the output shaft of the drive motor is coaxially and fixedly connected to the travel gear, and the drive motor is slidably connected to the conductive groove;

[0011] The drive mechanism connects the traveling gear to the long-shaft brush via the drive mechanism.

[0012] Optionally, the drive mechanism includes a drive gear, which is coaxially and fixedly connected to the travel gear via a transmission shaft. A driven gear is coaxially and fixedly connected to the top of the long-shaft brush, and the driven gear meshes with the drive gear. The bottom end of the long-shaft brush is slidably connected to the lower frame of the fan inlet.

[0013] Optionally, two long-shaft brushes are provided, and the ends of the two long-shaft brushes are coaxially fixedly connected with driven gears. The two driven gears are located on both sides of the driving gear, and both driven gears are meshed with the driving gear.

[0014] Optionally, it also includes a power supply, which is connected to the conductive groove via a wire, and the motor is connected to a conductive sliding head via a wire, the conductive sliding head being slidably connected within the conductive groove.

[0015] Optionally, limit switches are provided at both ends of the fan inlet along the direction of travel of the gear. The limit switches are electrically connected to the drive motor and are used to detect whether the drive motor has traveled to the left or right sides of the fan inlet.

[0016] Optionally, the other end of the long-shaft brush is rotatably connected to a slip ring via a bearing, and the slip ring is slidably connected to the frame on the lower side of the fan inlet.

[0017] This utility model has at least the following beneficial effects:

[0018] This invention uses a drive motor to drive a traveling gear to move on a fixed rack, which in turn moves the drive mechanism and a long-shaft brush at the fan inlet. As the long-shaft brush moves and rotates, it cleans the filter screen at the fan inlet, brushing off the frost on the filter screen. This prevents the fan inlet from being blocked, ensures the air intake of the fan inlet, and enables it to work normally, thus avoiding affecting the machine's production efficiency. Attached Figure Description

[0019] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a first-view structural schematic diagram of an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Long-shaft brush; 2. Rack; 3. Traveling gear; 4. Drive motor; 5. Drive mechanism; 51. Driving gear; 52. Driven gear; 6. Power supply; 7. Conductive groove; 8. Conductive sliding head; 9. Limit switch; 10. Slip ring; 11. Frame; 12. Filter screen. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.

[0026] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.

[0027] like Figure 1 As shown, this utility model discloses a mechanical defrosting device for a fan inlet, comprising:

[0028] Long-shaft brush 1, the long-shaft brush 1 has a cylindrical structure, the two ends of the long-shaft brush 1 are slidably connected to the upper and lower sides of the fan inlet, and the bristles of the long-shaft brush 1 are in contact with the fan inlet filter screen;

[0029] Rack 2, which is fixedly connected to the upper side of the fan inlet, and the length direction of rack 2 is perpendicular to the axis of long shaft brush 1;

[0030] The traveling gear 3 is meshed on the rack 2, and the axis of the traveling gear 3 is parallel to the axis of the long shaft brush 1.

[0031] The drive motor 4 has its output shaft coaxially and fixedly connected to the travel gear 3, and the drive motor 4 is slidably connected to the conductive groove 7.

[0032] The drive mechanism 5 is used to drive the walking gear 3, which is connected to the long shaft brush 1.

[0033] The above-mentioned fan inlet has a rectangular structure, a quadrilateral frame 11, and a filter 12 fixed inside the frame 11, with the filter 12 positioned close to the air outlet of the frame 11.

[0034] The aforementioned long-shaft brush 1 is a cylindrical shaft structure. A layer of bristles is included on the outside of the cylindrical shaft to form a long-shaft brush structure. The long-shaft brush 1 is set on the frame of the fan inlet, and the bristles of the long-shaft brush 1 are in contact with the filter screen of the fan inlet. The cylindrical shaft of the long-shaft brush 1 is spaced apart from the filter screen. When the long-shaft brush 1 rotates, the bristles brush away the frost on the filter screen.

[0035] The aforementioned rack 2 is fixedly mounted on the frame above the fan inlet. The traveling gear 3 meshes with the rack 2. By driving the traveling gear 3 to rotate, the traveling gear 3 rolls and moves along the rack 2. The traveling gear 3 is connected to the long shaft brush 1 through the drive mechanism 5, so that the traveling gear 3 can drive the long shaft brush 1 to move together and clean the frost on various parts of the filter screen.

[0036] The drive of the walking gear 3 is achieved by setting a drive motor 4. The output shaft of the drive motor 4 is coaxially and fixedly connected to the walking gear 3. The drive motor 4 moves together with the walking gear 3 while driving it. In order to ensure that the drive motor 4 is always energized during the movement, the drive motor 4 is slidably connected in the conductive groove 7. Specifically, a conductive sliding head 8 is connected to the drive motor 4 and slidably connected in the conductive groove 7, so that the drive motor 4 can always be energized during the sliding process.

[0037] Meanwhile, in order to ensure the stability of the drive motor 4 during the movement, a sliding structure needs to be set at the inlet of the fan to fix the drive motor 4 and allow the drive motor 4 to move and support it. For example, a groove can be opened at the inlet of the fan along the moving direction of the long shaft brush 1, and the motor connecting slider can be slidably connected in the groove.

[0038] In a further embodiment, the drive mechanism 5 includes a drive gear 51, which is coaxially and fixedly connected to the travel gear 3 via a transmission shaft. A driven gear 52 is coaxially and fixedly connected to the top of the long shaft brush 1, and the driven gear 52 meshes with the drive gear 51.

[0039] The aforementioned drive mechanism 5 is configured with a driving gear 51 and a driven gear 52 that mesh with each other. The driving gear 51 and the traveling gear 3 are coaxially fixedly connected by a transmission shaft and rotate synchronously. The driven gear 52 meshes on both sides of the driving gear 51, so that the traveling gear 3 can synchronously drive the driving gear 51 to move and rotate during the travel process. The driving gear 51 drives the driven gear 52 to rotate, thereby driving the long shaft brush 1 to rotate and clean the frost on the filter screen during the movement.

[0040] In a further embodiment, two long-shaft brushes 1 are provided, and the top ends of the two long-shaft brushes 1 are coaxially fixedly connected with driven gears 52. The two driven gears 52 are located on both sides of the driving gear 51, and the two driven gears 52 are meshed with the driving gear 51.

[0041] Setting two long-shaft brushes 1 as described above can improve cleaning efficiency and cleaning effect.

[0042] In addition, a power supply 6 is included, which is connected to a conductive groove 7 via a wire, and a motor is connected to a conductive sliding head 8 via a wire, with the conductive sliding head 8 slidably connected within the conductive groove 7.

[0043] By setting power supply 6 to supply power to conductive groove 7, the drive motor 4 is always powered during movement.

[0044] In a further embodiment, limit switches 9 are provided at both ends of the fan inlet along the moving direction of the traveling gear 3. The limit switches 9 are electrically connected to the drive motor 4 and are used to detect whether the drive motor 4 has traveled to the left or right sides of the fan inlet.

[0045] Limit switches 9 are installed on both sides of the fan inlet. The limit switches 9 are electrically connected to the drive motor 4. When the drive motor 4 moves to the limit switches 9 on both sides and contacts the limit switches 9, the limit switches 9 control the drive motor 4 to stop rotating. Then, by controlling the drive motor 4 to reverse, the drive motor 4 drives the long shaft brush 1 to move to the other side and clean the frost.

[0046] In addition, an automatic control system can be set up as needed. After the drive motor 4 contacts the limit switch 9 on one side, the control system automatically controls the drive motor 4 to reverse, so that the long shaft brush 1 returns to the other side. It should be noted that the specific circuit connection method of receiving the signal from the limit switch 9 and controlling the forward and reverse rotation of the drive motor 4 through the automatic control system is existing technology and will not be described in detail here.

[0047] The other end of the long shaft brush 1 is rotatably connected to a slip ring 10 via a bearing, and the slip ring 10 is slidably connected to the bottom of the fan inlet frame.

[0048] By setting a slip ring 10 on the long shaft brush 1, the long shaft brush 1 can slide left and right at the fan inlet through the slip ring 10. At the same time, in order to avoid affecting the rotation of the long shaft brush 1, a bearing is set between the long shaft brush 1 and the slip ring 10 so that it can rotate during the left and right sliding process.

[0049] This application utilizes the metal structure of the fan's air inlet shape, adding a drive mechanism 5 above the inlet, a sliding mechanism below, and a rotating brush in the middle to clean up condensation.

[0050] The drive motor 4 rotates, causing the coaxial traveling gear 3 and drive gear 51 to rotate. The traveling gear 3 is responsible for linear forward and backward movement. The drive gear 51 drives two driven gears 52 to rotate. When the driven gears 52 rotate, they drive the long-shaft brush 1 on the coaxial axis to work, cleaning the frost on the fan inlet filter. Below the rotating brush is a small bearing that rotates in conjunction with the brush. Below the small bearing is a fixed slip ring 10 and a fixed rod, which move simultaneously with the motor. When the motor reaches the leftmost or rightmost position, it touches the limit switch 9, and the motor stops working. Then, the power supply box 6 controls the motor to start moving in the opposite direction. The motor drives the rotating brush to move back and forth, cleaning the frost on the filter and ensuring normal airflow at the fan inlet.

[0051] This device can be set to manual control, automatic control, frequency conversion control, timed start and stop, etc. The specific circuit connection method can adopt existing technology, which will not be described in detail here.

[0052] All materials used in this embodiment are mature and, through new combinations, achieve new functions; all can be made of common materials, which are inexpensive on the market; this ensures normal production of the equipment and increases efficiency.

[0053] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0054] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

[0055] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A mechanical defrosting device for a fan inlet, characterized in that, include: A long-shaft brush, which has a cylindrical structure, has its two ends slidably connected to the upper and lower side frames of the fan inlet, and the bristles of the long-shaft brush are in contact with the fan inlet filter. A rack is fixedly connected to the upper side of the fan inlet, and the length direction of the rack is perpendicular to the axis of the long shaft brush. The traveling gear is meshed on the rack, and the axis of the traveling gear is parallel to the axis of the long shaft brush. A drive motor, wherein the output shaft of the drive motor is coaxially and fixedly connected to the travel gear, and the drive motor is slidably connected to the conductive groove; The drive mechanism connects the traveling gear to the long-shaft brush via the drive mechanism.

2. The mechanical defrosting device for a fan inlet according to claim 1, characterized in that: The drive mechanism includes a drive gear, which is coaxially and fixedly connected to the travel gear via a transmission shaft. A driven gear is coaxially and fixedly connected to the top of the long-shaft brush, and the driven gear meshes with the drive gear. The bottom end of the long-shaft brush is slidably connected to the lower frame of the fan inlet.

3. The mechanical defrosting device for a fan inlet according to claim 1, characterized in that: Two long-shaft brushes are provided, and the ends of the two long-shaft brushes are coaxially fixedly connected with driven gears. The two driven gears are located on both sides of the driving gear, and both driven gears are meshed with the driving gear.

4. The mechanical defrosting device for a fan inlet according to claim 1, characterized in that: It also includes a power supply, which is connected to a conductive groove via a wire, and a motor is connected to a conductive sliding head via a wire, the conductive sliding head being slidably connected within the conductive groove.

5. The mechanical defrosting device for a fan inlet according to claim 1, characterized in that: Limit switches are installed at both ends of the fan inlet along the direction of travel gear movement. The limit switches are electrically connected to the drive motor and are used to detect whether the drive motor has traveled to the left or right sides of the fan inlet.

6. The mechanical defrosting device for a fan inlet according to claim 1, characterized in that: The other end of the long-shaft brush is rotatably connected to a slip ring via a bearing, and the slip ring is slidably connected to the frame on the lower side of the fan inlet.

Images