Automatic cleaning device of gearbox heat exchanger

Abstract

The utility model discloses an automatic cleaning device for a gear box heat exchanger, which is used for automatically carrying out dust removal treatment on radiator fins and reducing the dust accumulation condition, so that the heat dissipation efficiency of the gear box heat exchanger is ensured. The device comprises a guide rail, a rolling brush and a driving assembly, the guide rails are fixed to the two sides of a radiator fin respectively and located on the surface of the radiator fin. The guide rails comprise the first guide rail and the second guide rail, the two ends of the rolling brush are movably connected with the first guide rail and the second guide rail respectively, and the rolling brush is tightly attached to the surface of the radiator fin. The driving assembly is fixed to the radiator fins, the driving assembly is connected with the rolling brush, and the driving assembly is used for controlling the rolling brush to move along the guide rail.

Description

Technical Field

[0001] This application relates to the field of wind power generation equipment technology, and in particular to an automatic cleaning device for a gearbox heat exchanger. Background Technology

[0002] Fans generate a lot of heat during operation. To prevent excessive temperature from affecting the equipment, a gearbox heat exchanger is needed to cool the gears inside the fan. The gearbox heat exchanger is located at the top of the nacelle.

[0003] Existing gearbox heat exchangers are basically composed of a cooling fan connected to oil-cooled radiator fins. In order to increase the heat dissipation area, the radiator fins are designed with small and dense gaps. In actual working environments, if there is a lot of fine dust and the environment is poor, such as poplar catkins, grain harvesting dust, etc., this fine dust can easily cause dust to accumulate on the radiator fins, causing blockage of the air-cooled heat dissipation channel, affecting the normal heat dissipation of the gearbox heat exchanger, resulting in excessively high gearbox oil temperature, and eventually causing the fan to fail and shut down.

[0004] High temperatures in gearbox oil not only affect equipment health and the lifespan of mechanical parts, but also have a greater impact on power generation efficiency. Clogged radiator fins can cause downtime of three to five hours, or even eight to nine hours, and have a significant impact on power generation efficiency on windy days.

[0005] Therefore, there is an urgent need for an automatic cleaning device for gearbox heat exchangers to solve the above-mentioned technical problems. Utility Model Content

[0006] To address the aforementioned technical problems, this application provides an automatic cleaning device for gearbox heat exchangers, which can automatically clean the radiator fins, reduce dust accumulation, and thus ensure the heat dissipation efficiency of the gearbox heat exchanger.

[0007] This application provides an automatic cleaning device for a gearbox heat exchanger, comprising:

[0008] The device comprises a guide rail, a roller brush, and a drive assembly. The guide rail is fixed on both sides of the radiator fins and is located on the surface of the radiator fins. The guide rail includes a first guide rail and a second guide rail. The two ends of the roller brush are movably connected to the first guide rail and the second guide rail, respectively, and the roller brush is in close contact with the surface of the radiator fins. The drive assembly is fixed to the radiator fins and is connected to the roller brush. The drive assembly is used to control the roller brush to move along the guide rail.

[0009] Optionally, the drive assembly includes a stepper motor, a PLC controller, and a ball screw. The PLC controller is connected to the stepper motor, and the stepper motor is connected to the end of the brush via the ball screw.

[0010] Optionally, the driving component is a cylinder, which is connected to the end of the roller brush and is used to drive the roller brush to move along the guide rail.

[0011] Optionally, the roller brush includes a shaft, a rotating motor, and a roller. The surface of the roller is provided with coarse fiber bristles. The shaft passes through the roller and is movably connected to the roller through a bearing. The rotating motor is fixed on the shaft and is connected to the inner wall of the roller through a gear. The rotating motor is used to control the rotation of the roller.

[0012] Optionally, the roller brush includes a shaft, a rotating motor, and a roller. Bearings are respectively provided at both ends of the shaft. The bearing sleeve is disposed outside the bearing and is connected to the drive assembly. The rotating motor is fixed on the bearing sleeve and is connected to the shaft through gears. The rotating motor is used to drive the shaft to rotate.

[0013] Optionally, limit blocks are provided at both ends of the guide rail.

[0014] Optionally, the limiting block located at the upper end of the guide rail is detachably connected to the guide rail.

[0015] Optionally, the guide rail is fixed to the radiator fins by bolts.

[0016] Optionally, a protective cover is provided outside the drive assembly, and the protective cover is connected to the heat sink fins.

[0017] As can be seen from the above technical solutions, this application has the following effects:

[0018] This application involves installing guide rails on both sides of the radiator fins, and placing a movable roller brush between the guide rails. The roller brush is in contact with the surface of the radiator fins, and a drive assembly is connected to the roller brush. The drive assembly drives the roller brush to move along the guide rails. Thus, when there is a certain amount of dust accumulation on the radiator fins, the drive assembly controls the roller brush to reciprocate along the guide rails. During the movement, the roller brush sweeps away the dust on the radiator fins, thereby achieving a dust removal effect. This reduces dust accumulation and ensures the heat dissipation efficiency of the gearbox heat exchanger. In addition, the probability of heat exchanger fin blockage caused by dust accumulation is significantly reduced, which can effectively improve power generation efficiency and reduce downtime. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of one embodiment of an automatic cleaning device for a gearbox heat exchanger according to this application;

[0021] Figure 2 This is a top view schematic diagram of an embodiment of an automatic cleaning device for a gearbox heat exchanger according to this application;

[0022] Figure 3 This is a schematic diagram of an embodiment of a roller brush in an automatic cleaning device for a gearbox heat exchanger according to this application;

[0023] Figure 4 This is a schematic diagram of another embodiment of the roller brush in an automatic cleaning device for a gearbox heat exchanger according to this application;

[0024] Figure 5 This is a schematic diagram of a drive assembly in an automatic cleaning device for a gearbox heat exchanger according to this application;

[0025] Figure 6 This is a schematic diagram of a limit block in an automatic cleaning device for a gearbox heat exchanger according to this application;

[0026] Figure 7 This is a schematic diagram of another embodiment of an automatic cleaning device for a gearbox heat exchanger according to this application. Detailed Implementation

[0027] In this utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only used to describe the relative positional relationship between the components or parts and do not specifically limit the specific installation orientation of each component or part.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0029] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] Furthermore, the structures, proportions, sizes, etc., drawn in the accompanying drawings of this application are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] This application provides an automatic cleaning device for gearbox heat exchangers, which can automatically clean the radiator fins, reduce dust accumulation, and thus ensure the heat dissipation efficiency of the gearbox heat exchanger. The specific implementation process of this application is described below.

[0033] Please see Figures 1 to 7 The automatic cleaning device for a gearbox heat exchanger provided in this application includes:

[0034] The guide rail 1, the roller brush 2, and the drive assembly 3 are respectively fixed on both sides of the heat sink fins 4 and located on the surface of the heat sink fins 4. The guide rail 1 includes a first guide rail and a second guide rail. The two ends of the roller brush 2 are movably connected to the first guide rail and the second guide rail respectively, and the roller brush 2 is in close contact with the surface of the heat sink fins 4. The drive assembly 3 is fixed on the heat sink fins 4 and connected to the roller brush 2. The drive assembly 3 is used to control the roller brush 2 to move along the guide rail 1.

[0035] This application mainly includes three core components: guide rail 1, roller brush 2, and drive assembly 3, which are used to achieve efficient and automatic cleaning of heat sink fins 4.

[0036] As the basic part of this application, the guide rail 1 is fixed on both sides of the heat sink fin 4 and closely attached to the surface of the fin.

[0037] For ease of description, the two guide rails 1 are divided into the first guide rail and the second guide rail. During installation, the guide rails 1 are usually fixed with fasteners such as bolts to ensure that the guide rails 1 will not loosen or shift during cleaning.

[0038] The roller brush 2 is the core component of this application. The two ends of the roller brush 2 are movably connected to the first guide rail and the second guide rail respectively, so that the roller brush 2 can move freely along the guide rail 1. At the same time, the roller brush 2 keeps in close contact with the surface of the heat sink fins 4 to ensure the cleaning effect.

[0039] The roller brush 2 typically consists of a shaft 21, a rotating motor 22, and a roller 23. The surface of the roller 23 is covered with coarse fiber bristles, which can easily remove dirt and dust from the surface of the radiator fins 4. The shaft 21 passes through the roller 23 and is movably connected to the roller 23 via a bearing 25, allowing the roller 23 to rotate freely under the drive of the rotating motor 22.

[0040] The drive assembly 3 is the power source for the cleaning device. It is fixed to the radiator fins 4 and tightly connected to the roller brush 2. The main task of the drive assembly 3 is to control the roller brush 2 to move along the guide rail 1, thereby achieving comprehensive cleaning of the fins.

[0041] In practical implementation, the drive component 3 can take various forms, such as a combination of a stepper motor 31, a PLC controller, and a ball screw 32, or a cylinder. The drive component 3 must have sufficient power and control precision to ensure that the roller brush 2 can move according to the predetermined trajectory and speed.

[0042] When a combination of stepper motor 31 and PLC controller is used, the PLC controller is responsible for sending control signals to stepper motor 31, and stepper motor 31 converts the rotational motion into linear motion through ball screw 32, thereby driving the roller brush 2 to move along guide rail 1. In this mode, a timer function can also be set, such as cleaning once every 3 days or cleaning once every 8 days.

[0043] Please continue reading. Figure 7 When a cylinder is used as the drive component 3, the piston rod of the cylinder is directly connected to the end of the roller brush 2. By controlling the intake and exhaust of the cylinder, the piston rod can be driven to extend and retract, thereby moving the roller brush 2 along the guide rail 1.

[0044] During the cleaning process, the drive assembly 3 controls the roller brush 2 to move along the guide rail 1, and at the same time the rotating motor 22 also starts to work, driving the roller 23 to rotate. The coarse fiber bristles on the surface of the roller 23 come into close contact with the surface of the radiator fins 4 during the rotation, effectively removing dirt and dust.

[0045] This application can automatically and efficiently clean the radiator fins 4, improving heat exchange efficiency; at the same time, it reduces the labor intensity and cost of manual cleaning.

[0046] The drive assembly 3 includes a stepper motor 31, a PLC controller, and a ball screw 32. The PLC controller is connected to the stepper motor 31, and the stepper motor 31 is connected to the end of the roller brush 2 via the ball screw 32. The stepper motor 31 is the core component of the drive assembly 3, and the drive assembly 3 rotates according to the control signals from the PLC controller. The rotational motion of the stepper motor 31 is converted into linear motion by the ball screw 32, thereby driving the roller brush 2 to move along the guide rail 1. The stepper motor 31 is connected to the PLC controller via a cable or terminal block to ensure accurate signal transmission and execution of control commands. For details on the connection method between the stepper motor 31 and the ball screw 32, please refer to [reference needed]. Figure 5 As shown, a right-angle gear 33 can be used for connection.

[0047] In an optional embodiment, the roller brush 2 includes a shaft 21, a rotating motor 22, and a roller 23. The surface of the roller 23 is provided with coarse fiber bristles. The shaft 21 passes through the roller 23 and is movably connected to the roller 23 through a bearing 25. The rotating motor 22 is fixed on the shaft 21 and is connected to the inner wall of the roller 23 through a gear 24. The rotating motor 22 is used to control the rotation of the roller 23.

[0048] The shaft 21 passes through the roller 23 and is movably connected to the roller 23 through the bearing 25, so that the roller 23 can rotate freely on the shaft 21 while maintaining a stable connection with the shaft 21.

[0049] The rotating motor 22 is fixed on the shaft 21 and connected to the inner wall of the roller 23 via a gear 24. Specifically, the inner wall of the roller 23 is also equipped with a gear 24. When the rotating motor 22 starts, it transmits power through the gear 24, driving the roller 23 to rotate. The gear 24 on the inner wall of the roller 23 meshes tightly with the gear 24 of the rotating motor 22, ensuring smooth rotation under the motor's drive. In this embodiment, the cable for powering the rotating motor 22 can be inserted into the shaft 21 to achieve electrical connection with the rotating motor.

[0050] The surface of roller 23 is covered with coarse fiber bristles, which can easily remove dirt and dust from the surface of radiator fins 4.

[0051] In another optional embodiment, the roller brush 2 includes a shaft 21, a rotating motor 22, and a roller 23. Bearings 25 are respectively provided at both ends of the shaft 21, and bearing sleeves 6 are disposed outside the bearings 25. The bearing sleeves 6 are connected to the drive assembly 3. The rotating motor 22 is fixed on the bearing sleeves 6 and connected to the shaft 21 via gears 24. The rotating motor 22 drives the shaft 21 to rotate. In this embodiment, the rotating motor 22 is fixed on the bearing sleeves 6, and bearings 25 are fixed at both ends of the shaft 21. The bearing sleeves 6 are disposed outside the bearings 25 and are also connected to the drive assembly 3. Thus, firstly, the drive assembly 3 controls the bearing sleeves 6 to move along the guide rail 1, and secondly, the rotating motor 22 drives the shaft 21 to rotate via the bearings 25.

[0052] Please continue reading. Figure 1 and Figure 6 In an optional embodiment, limit blocks 5 are provided at both ends of the guide rail 1. The limit blocks 5 are installed at both ends of the guide rail 1. When the slider or related moving parts reach the limit position of the guide rail 1, the limit blocks 5 will prevent them from continuing to move, thereby preventing equipment damage or safety accidents caused by excessive movement. By adjusting the position of the limit blocks 5, the movement range of the slider can be precisely controlled, ensuring that the equipment operates according to the predetermined stroke. The limit blocks 5 also act as a buffer, reducing the direct impact between the slider and the end of the guide rail 1, and extending the service life of the equipment.

[0053] In this optional embodiment, limit blocks 5 are provided at both the upper and lower ends of the guide rail 1, and the limit block 5 located at the upper end of the guide rail 1 is detachably connected to the guide rail 1.

[0054] Please continue reading. Figure 5 In an optional embodiment, a protective cover 8 is provided outside the drive assembly 3, and the protective cover 8 is connected to the heat sink fins 4. The protective cover 8 can be connected to the heat sink fins 4 by screws. This connection method facilitates the maintenance and replacement of the protective cover 8, reducing the complexity and cost of equipment maintenance. In this embodiment, by providing the protective cover 8, the drive assembly 3 can be effectively protected from external environmental damage, thereby improving the overall reliability and service life of the equipment.

[0055] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic cleaning device for a gearbox heat exchanger, characterized in that, include: Guide rails, roller brushes, and drive components; The guide rails are fixed on both sides of the radiator fins and are located on the surface of the radiator fins. The guide rail includes a first guide rail and a second guide rail. The two ends of the roller brush are movably connected to the first guide rail and the second guide rail, respectively, and the roller brush is in close contact with the surface of the radiator fins. The drive assembly is fixed to the radiator fins, the drive assembly is connected to the roller brush, and the drive assembly is used to control the roller brush to move along the guide rail; The roller brush includes a shaft, a rotating motor, and a roller. The surface of the roller is provided with coarse fiber bristles. The shaft passes through the roller and is movably connected to the roller through a bearing. The rotating motor is fixed on the shaft and is connected to the inner wall of the roller through a gear. The rotating motor is used to control the rotation of the roller.

2. The automatic cleaning device according to claim 1, characterized in that, The drive assembly includes a stepper motor, a PLC controller, and a ball screw. The PLC controller is connected to the stepper motor, and the stepper motor is connected to the end of the brush via the ball screw.

3. The automatic cleaning device according to claim 1, characterized in that, The driving component is a cylinder, which is connected to the end of the roller brush and is used to drive the roller brush to move along the guide rail.

4. The automatic cleaning device according to any one of claims 1 to 3, characterized in that, The roller brush includes a shaft, a rotating motor, and a roller. Bearings are respectively provided at both ends of the shaft. The bearing sleeve is disposed outside the bearing and is connected to the drive assembly. The rotating motor is fixed on the bearing sleeve and is connected to the shaft through a gear. The rotating motor is used to drive the shaft to rotate.

5. The automatic cleaning device according to any one of claims 1 to 3, characterized in that, Limiting blocks are provided at both ends of the guide rail.

6. The automatic cleaning device according to claim 5, characterized in that, The limiting block located at the upper end of the guide rail is detachably connected to the guide rail.

7. The automatic cleaning device according to any one of claims 1 to 3, characterized in that, The guide rail is fixed to the radiator fins by bolts.

8. The automatic cleaning device according to claim 1, characterized in that, The drive assembly is provided with a protective cover, which is connected to the heat sink fins.

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