Automatic scraping device and cleaning method for rotating hyperbolic surface

Abstract

The present invention discloses an automatic scraping and brushing device and a cleaning method for a rotating hyperbolic surface, comprising a hyperbolic scraping and brushing structure, an outer rotating curved surface, an inner rotating curved surface and an axial support, wherein the hyperbolic scraping and brushing mechanism is arranged between the outer rotating curved surface and the inner rotating curved surface and sleeved on the axial support, and the inner rotating curved surface and the outer rotating curved surface are connected by the axial support; the beneficial effect of the present invention is that the automatic scraping and brushing device is directly mounted and fixed on the rotating hyperbolic axial support to be cleaned, and no additional other mounting and supporting equipment is required, thereby further reducing the manufacturing cost; the power on or off of the motor can be uniformly and simply realized by the driving control mechanism for adjusting the elevation angle and azimuth angle of the collector tower to realize full automatic control (including but not limited to the starting time and duration), thereby further improving the degree of automation, and the installation is convenient, the use is simple, and the cleaning effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of collector cleaning, in particular to an automatic scraping brush device for a rotating hyperboloid and a cleaning method. Background Art

[0002] The traditional tubular or flat-plate and tracking-concentrating medium and high temperature solar collectors currently in use will inevitably be covered with dirt, dust or snow on their (reflecting) collecting surfaces in outdoor windy, sandy, rainy and snowy environments. If they are not cleaned in time, the efficiency of solar energy collection and utilization will be seriously reduced, especially the latter. Because most of the various solar collectors currently in use are not equipped with automatic cleaning devices, their users have to resort to irregular manual cleaning, which is not only labor-intensive, low in work efficiency, time-consuming and labor-intensive, and costly, but also the cleaning process is cumbersome and complicated, and the high-altitude operation also brings certain risks to the cleaning workers.

[0003] At present, there are many devices for cleaning traditional solar collectors, but on the one hand, most of them are independent products of third parties and cannot be fully integrated with the solar collectors themselves; on the other hand, most of them cannot truly achieve fully automated cleaning and the degree of automation is not high; moreover, the devices are complex and costly, and have not been widely promoted and applied.

[0004] Therefore, especially in medium and high temperature solar collectors, it is necessary to develop a simple, safe and efficient automatic cleaning device, which is a technical problem that technical personnel in this field urgently need to solve. In view of this, in-depth research was conducted on the above-mentioned problems, resulting in this case. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems, and an automatic scraping device and cleaning method for a rotating hyperbolic surface are designed to solve the existing background technology problems.

[0006] The technical solution of the present invention to achieve the above-mentioned purpose is: an automatic scraping device for a rotating hyperbolic surface, comprising a hyperbolic scraping structure, an outer rotating curved surface, an inner rotating curved surface and an axial support, wherein the inner rotating curved surface and the outer rotating curved surface are connected by the axial support, and a hyperbolic scraping structure is arranged between the outer rotating curved surface and the inner rotating curved surface;

[0007] The hyperbolic scraping brush structure comprises: a sleeve support frame, an elastic limit assembly, a pair of rotating support beams, a pair of external wiping frames and a pair of internal wiping frames;

[0008] The outer sleeve of the axial support is provided with a sleeve support frame, and a movable limiting plate rod and a driven gear are provided above the sleeve support frame. A pair of rotating support beams are provided on both sides of the driven gear, and a pair of inner wiping frames are movably mounted on the pair of rotating support beams, and the pair of inner wiping frames are parallel to the inner rotating curved surface and can rotate. A pair of outer wiping frames are fixed at both ends of the pair of rotating support beams, and the pair of outer wiping frames are parallel to the outer rotating curved surface and can rotate. An elastic limiting component is provided between the pair of inner wiping frames.

[0009] The elastic limiting assembly comprises: a slide groove, a through hole, a limiting plate rod and a pair of return springs;

[0010] A slide groove is provided in the middle of the inner wiping frame, and the slide groove is a through hole with an elongated structure. The outer rod portion of the limit plate rod passes through the slide groove, and a return spring is connected between the middle section of the rotating support beam and the middle section of the inner wiping frame.

[0011] A pair of wiping rubber strips are respectively arranged on the relatively inner sides of the pair of inner wiping frames and the outer sides of the pair of outer wiping frames, and are matched with the inner rotating curved surface and the outer rotating curved surface respectively.

[0012] The rotation center axis of the limit plate rod coincides with the center line of the sleeve support frame.

[0013] A motor is fixedly arranged on one side of the sleeve support frame, and a driving gear is arranged on the driving end of the motor to mesh with a driven gear.

[0014] A pair of inner wiping frames, a pair of outer wiping frames and a pair of rotating support beams are all movably connected via pins.

[0015] A method for using a rotating hyperbolic surface automatic scraping device, comprising the following steps: step S1, equipment installation, step S2, rotation cleaning, step S3, shutdown and reset, step S4, rubber strip removal and cleaning;

[0016] The step S1: installing the device with the axial support between the hyperboloids as the center, and a certain distance is set between the inner wiping frame, the outer wiping frame and the hyperboloids during installation;

[0017] Step S2: start the motor, so that the pair of outer wiping racks are slightly tilted inwards under the action of the rotating centrifugal force and the pair of inner wiping racks are pulled by the outer inclined surface of the limit plate rod, and the wiping rubber strips are respectively pressed against the hyperbolic surface, and the motor is cooperated to perform rotation cleaning;

[0018] Step S3: turning off the motor, so that the outer wiping frame and the inner wiping frame are reset under the action of the elastic limit assembly, and the wiping rubber strip on the outer wiping frame is disconnected from the outer rotating curved surface, and the wiping rubber strip on the inner wiping frame is disconnected from the inner rotating curved surface;

[0019] Step S4: After being used for a period of time, the rubber strip can be removed for cleaning or even updated and then installed on the device.

[0020] An automatic scraping and brushing device for a rotating hyperbolic surface. When simplified for application, if a pair of the rotating support beams, a pair of the inner wiping frames, a pair of the outer wiping frames, a pair of the return springs, and each pair of the wiping rubber strips are partially eliminated and only one or only one is left on a single side, it can still become an automatic scraping and brushing device and a cleaning method for a rotating hyperbolic surface; if the outer wiping frame and the wiping rubber strip on the outer wiping frame are eliminated, it can become an automatic scraping and brushing device and a cleaning method for only cleaning the inner rotating curved surface; and if the inner wiping frame and the wiping rubber strip on the inner wiping frame are eliminated, it can become an automatic scraping and brushing device and a cleaning method for only cleaning the outer rotating curved surface.

[0021] The automatic scraping device manufactured using the technical solution of the present invention is directly mounted and fixed on the rotating hyperbolic axis support to be cleaned, and does not require any additional mounting and supporting equipment, thereby further reducing manufacturing costs; the power on or off of its motor can be uniformly and simply realized by a driving control mechanism that adjusts the elevation angle and azimuth angle of the collector tower to achieve full automatic control (including but not limited to start-up time and duration), thereby further improving the degree of automation, being easy to install, simple to use, and having a good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main cross-sectional structure of an automatic scraping and brushing device and a cleaning method for a rotating hyperbolic surface described in the present invention.

[0023] Figure 2 This is a schematic diagram of the main structure of an automatic scraping and brushing device and a cleaning method for a rotating hyperbolic surface described in the present invention.

[0024] Figure 3 The diagram is a top view of the structure of an automatic scraping and brushing device and a cleaning method for a rotating hyperbolic surface according to the present invention.

[0025] Figure 4 For the present invention Figure 2 A partially enlarged structural schematic diagram of the automatic scraping and cleaning method of a rotating hyperbolic surface.

[0026] Figure 5 For the present invention Figure 3 A partially enlarged structural schematic diagram of the automatic scraping and cleaning method of a rotating hyperbolic surface.

[0027] In the figure: 1. driving gear; 2. motor; 3. sleeve support frame; 4. driven gear; 5. rotating support beam; 6. outer wiping frame; 7. limit plate rod; 8. inner wiping frame; 9. reset spring; 10. wiping rubber strip; 11. outer rotating surface; 12. inner rotating surface; 13. axial support; 14. collector tower; 15. drive control mechanism. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings. Figures 1 to 5 shown.

[0029] The automatic scraping device provided by one embodiment of the present invention includes a driving gear 1, a motor 2, a sleeve support frame 3, a driven gear 4, a rotating support beam 5, an outer wiping frame 6, a limit plate rod 7, an inner wiping frame 8, a return spring 9, and a wiping rubber strip 10. The wiping rubber strip 10 will directly contact the outer rotating curved surface 11 and the inner rotating curved surface 12 to be cleaned (for details, see Figure 1 The wiping rubber strip 10 fixed on the outer wiping frame 6 is parallel to the cross-sectional curve of the outer rotating curved surface 11 to be cleaned, and the wiping rubber strip 10 fixed on the inner wiping frame 8 is parallel to the cross-sectional curve of the inner rotating curved surface 12 to be cleaned. The limit plate rod 7 is movably suspended on the inner wiping frame 8 (for details, see Figure 1 and Figure 2 Schematic), and the two ends of the round rods with symmetrical bevel limiters pass through the inner wiping frame 8 (for details, see Figure 2 Partial magnification Figure 4 and Figure 3 Partial magnification Figure 5 Schematic diagram), the motor 2 is fixed on the sleeve support frame 3 and the rotating support beam 5 is fixed on the driven gear 4. When the motor 2 is powered on, it drives the driving gear 1, and then drives the driven gear 4 and the rotating support beam 5 fixed thereon, the inner wiping frame 8, the outer wiping frame 6, and the wiping rubber strip 10 to rotate around the axis support 13 of the rotating hyperboloid (for details, see Figure 1 and Figure 3 When the inner wiping frame 8 rotates, it will contact the inclined surface of one side of the two ends of the limiting plate rod 7 (for details, see the partial enlarged schematic diagram of FIG. 3). Figure 5 Schematic diagram), on the one hand, it pushes and rotates with the limiting plate rod 7, and on the other hand, the side inclined surface of the limiting plate rod 7 is limited (for details, see Figure 3 A partial enlargement of Figure 5 The inner wiping frame 8 is forced to automatically deflect slightly toward the rotation center so that the wiping rubber strip 10 on the inner wiping frame 8 is scraped against the inner rotating curved surface 12 to be cleaned; at the same time, the inner rotating curved surface 12 forms an outward and downward reaction force on the inner wiping frame 8 through the wiping rubber strip 10 (for details, see Figure 1The left middle section is schematically shown), causing the rotating support beam 5 and the outer wiping frame 6 to deflect outward and downward, and the centrifugal force of the rotation causes the wiping rubber strip 10 on the outer wiping frame 6 to scrape against the outer rotating curved surface 11 to be cleaned, thereby achieving automatic scraping and cleaning of the inner rotating curved surface 12 and the outer rotating curved surface 11 at the same time. After the motor 2 is powered off, the pulling force of the return spring 9 and the gravity of the limit plate rod 7 can simultaneously cause the rotating support beam 5 and the inner wiping frame 8 and the outer wiping frame 6 to automatically return to their original positions (for details, see Figure 1 and Figure 2 Schematic diagram), so that the wiping rubber strip 10 can be kept away from the inner rotating curved surface 12 and the outer rotating curved surface 11 that need to be cleaned.

[0030] It is understandable that the motor 2 can be arbitrarily selected by those skilled in the art according to the working conditions, such as but not limited to AC motors and DC motors. It is understandable that the motor 2 used can also be a stepper motor or a servo motor; the material of the wiping rubber strip 10 can be arbitrarily selected by those skilled in the art according to the working conditions, such as but not limited to wear-resistant and weather-resistant materials. It is understandable that the material used can also be soft and elastic; and the specific structures of the sleeve support frame 3, the rotating support beam 5, the outer wiping frame 6, the limiting plate rod 7, the inner wiping frame 8 and the wiping rubber strip 10 are not too limited, such as but not limited to the parts being cylindrical, elongated or plate-rod combination, etc.; and the outer rotating curved surface 11 can be used as a reflector for heat collection, and the inner rotating curved surface 12 can be used as a transparent cylinder for protecting the heat collector. All of the above are within the protection scope of the present invention.

[0031] In fact, the technical problem of solar collector cleaning that has long existed in other existing technologies, how to further maintain the light energy reflectivity or transmittance of the solar collector for a long time has become a technical problem in this field. Compared with the existing technology, the automatic scraping device of the rotating hyperboloid of the present invention has a scientific and reasonable design, a simple and ingenious structure, and is easy to control. It can be controlled manually or automatically, which can ensure the safety of solar collector cleaning, save manpower and material resources, have high work efficiency, a high degree of automation, and a good cleaning effect.

[0032] Reference Figure 1 and Figure 2In one embodiment of the present invention, when simplifying the application, if a pair of the rotating support beams 5, a pair of the inner wiping frames 8, a pair of the outer wiping frames 6, a pair of the return springs 9, and each pair of the wiping rubber strips 10 are partially eliminated and only one is left on one side or only one is left on one side, it can still be an automatic scraping device and cleaning method for a rotating hyperboloid; if the outer wiping frame 6 and its wiping rubber strip 10 are eliminated, it can be an automatic scraping device and cleaning method for only cleaning the inner rotating curved surface 12, and if the inner wiping frame 8 and its wiping rubber strip 10 are eliminated, it can be an automatic scraping device and cleaning method for only cleaning the outer rotating curved surface 11. All of them are within the protection scope of the present invention.

[0033] Continue to refer to Figure 1 and Figure 2 In one embodiment of the present invention, by controlling the power on of the motor 2, the dust or snow on the rotating hyperboloid surface can be automatically cleaned at the same time, and the light energy reflectivity or transmittance of the solar collector can be further maintained for a long time; by controlling the power off of the motor 2 and keeping the wiping rubber strip 10 away from the inner rotating curved surface 12 and the outer rotating curved surface 11 to be cleaned, the starting resistance of the motor 2 when powered on can be greatly reduced, and the load requirement of the motor 2 can be greatly reduced, thereby further reducing the cost of the motor 2. The power on and off of the motor 2 can be controlled manually or automatically, which is within the protection scope of the present invention.

[0034] Reference Figure 3 In one embodiment of the present invention, the automatic scraping device is arranged at the center of the rotating hyperboloid that needs to be cleaned. Specifically, the sleeve support frame 3 is installed and fixed on the axial support 13 of the rotating hyperboloid.

[0035] Compared with the prior art, the automatic scraping device in the present application is directly mounted and fixed on the rotating hyperbolic axis support 13 to be cleaned, and does not require any additional mounting and supporting equipment, thereby further reducing the manufacturing cost; the power on or off of the motor 2 can be uniformly and simply realized by the driving control mechanism 15 that adjusts the altitude angle and azimuth angle of the collector tower 14 to achieve full automatic control (including but not limited to the start time and duration), thereby further improving the degree of automation.

[0036] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An automatic scraping device for a rotating hyperbolic surface, comprising a hyperbolic scraping structure, an outer rotating curved surface, an inner rotating curved surface and an axial support, wherein the hyperbolic scraping mechanism is arranged between the outer rotating curved surface and the inner rotating curved surface and sleeved on the axial support, characterized in that: The inner rotation curved surface and the outer rotation curved surface are connected by an axial support; The hyperbolic scraping brush structure comprises: a sleeve support frame, an elastic limit assembly, a pair of rotating support beams, a pair of external wiping frames and a pair of internal wiping frames; The outer sleeve of the axial support is provided with a sleeve support frame, and a movable limit plate rod and a driven gear are provided above the sleeve support frame. A pair of rotating support beams are provided on both sides of the driven gear, and a pair of inner wiping frames are movably mounted on the pair of rotating support beams. The pair of inner wiping frames are parallel to the inner rotating curved surface and can rotate. A pair of outer wiping frames are fixed at both ends of the pair of rotating support beams. The pair of outer wiping frames are parallel to the outer rotating curved surface and can rotate. An elastic limit assembly is provided between the pair of inner wiping frames; The elastic limiting assembly comprises: a slide groove, a through hole, a limiting plate rod and a pair of return springs; A slide groove is provided in the middle of the inner wiping frame, and the slide groove is a through hole of a long strip structure. The outer rod portion of the limit plate rod passes through the slide groove, and a return spring is connected between the middle section of the rotating support beam and the middle section of the inner wiping frame; A pair of wiping rubber strips are respectively arranged on the relatively inner sides of the pair of inner wiping frames and the outer sides of the pair of outer wiping frames, and are matched with the inner rotating curved surface and the outer rotating curved surface respectively.

2. The automatic scraping device for a rotating hyperboloid according to claim 1, characterized in that: The rotation center axis of the limit plate rod coincides with the center line of the sleeve support frame.

3. The automatic scraping device for a rotating hyperboloid according to claim 1, characterized in that: A motor is fixedly arranged on one side of the sleeve support frame, and a driving gear is arranged on the driving end of the motor to mesh with the driven gear.

4. The automatic scraping device for a rotating hyperboloid according to claim 1, characterized in that: A pair of inner wiping frames, a pair of outer wiping frames and a pair of rotating support beams are all movably connected via pins.

5. The method for using the automatic scraping device of a rotating hyperboloid according to claim 1, characterized in that: The method comprises the following steps: step S1, equipment installation; step S2, rotation cleaning; step S3, shutdown and reset; step S4, strip removal and cleaning; The step S1: installing the device with the axial support between the hyperboloids as the center, and a certain distance is set between the inner wiping frame, the outer wiping frame and the hyperboloids during installation; Step S2: start the motor, so that the pair of outer wiping racks are slightly tilted inwards under the action of the rotating centrifugal force and the pair of inner wiping racks are pulled by the outer inclined surface of the limit plate rod, and the wiping rubber strips are respectively pressed against the hyperbolic surface, and the motor is cooperated to perform rotation cleaning; Step S3: turning off the motor, so that the outer wiping frame and the inner wiping frame are reset under the action of the elastic limit assembly, and the wiping rubber strip on the outer wiping frame is disconnected from the outer rotating curved surface, and the wiping rubber strip on the inner wiping frame is disconnected from the inner rotating curved surface; Step S4: After using for a period of time, the rubber strip is removed for cleaning or even updated before being installed on the device.

6. The automatic scraping device for a rotating hyperboloid according to claim 1, characterized in that: When simplifying the application, if a pair of the rotating support beams, a pair of the inner wiping frames, a pair of the outer wiping frames, a pair of the return springs, and each pair of the wiping rubber strips are partially eliminated and only one is left on a single side or only one is left on a single side, it can still become an automatic scraping brush device and a cleaning method for a rotating hyperboloid; if the outer wiping frame and the wiping rubber strip on the outer wiping frame are eliminated, it can become an automatic scraping brush device and a cleaning method for only cleaning the inner rotating surface; and if the inner wiping frame and the wiping rubber strip on the inner wiping frame are eliminated, it can become an automatic scraping brush device and a cleaning method for only cleaning the outer rotating surface.

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