Cleaning vehicle for small heliostats

Abstract

The utility model discloses a cleaning vehicle for small heliostats, which comprises a mobile vehicle body, a water tank, an electric control cabinet and a distance adjusting mechanism, the water tank, the electric control cabinet and the distance adjusting mechanism are mounted on the mobile vehicle body, and a cleaning mechanism is mounted on the distance adjusting mechanism and comprises a roller brush mechanism, a scraper mechanism and a water spraying mechanism. The roller brush mechanism and the scraper mechanism are fixedly connected through an upper connecting rod and a lower connecting rod; the water spraying mechanism comprises a water spraying pipe and a nozzle arranged on the water spraying pipe, and the nozzle faces the scraper mechanism; the scraping plate mechanism comprises a scraping plate frame and at least two scraping plates mounted on the scraping plate frame, and the lengths of the scraping plates are gradually increased from front to back; two first supports extending forwards are installed on a frame of the roller brush mechanism, first detection sensors are installed on the first supports, a second support extending backwards is installed on the scraper frame, and a second detection sensor is installed on the second support. The cleaning vehicle is convenient to move, the distance between the cleaning mechanism and the heliostat can be flexibly adjusted, and the cleaning effect is good.

Description

Technical Field

[0001] The utility model relates to the field of heliostat cleaning, in particular to a small heliostat cleaning vehicle. Background Art

[0002] There are a large number of heliostats in the mirror field of small heliostat solar thermal power generation, narrow cleaning channels, and soft ground with poor bearing capacity. The heliostats are installed in open-air environments in desert areas. Since the dust coverage affects the power generation efficiency, the mirror surface needs to be cleaned regularly to improve the mirror reflectivity.

[0003] The existing heliostat cleaning devices have the following main disadvantages:

[0004] 1. Cleaning vehicles that use light trucks and medium trucks as mobile carriers are large in size and weight and cannot be used normally in the cleaning channel of a small heliostat field;

[0005] 2. The cleaning operation is carried out by using a roller brush, nozzle flushing, sponge or other soft material scrubbing. The nozzle is arranged in the center and is far away from the sponge or other scrubbing materials. Since the heliostat is made of glass and has a large inclination angle, the flushing water will flow down quickly before scrubbing, affecting the scrubbing effect and causing water waste;

[0006] 3. The scrubbing device of the heliostat cleaning device mostly adopts single-layer scrubbing. Since the material is relatively soft, the contact force between the heliostat and the scrubbing device is relatively small, and the cleaning effect is not good.

[0007] 4. Since the heliostats on site are small in size and the mirror surface is low to the ground, the existing heliostat cleaning mechanism is arranged at a high height, and the mirror surface below the truck bed cannot be cleaned. When the cleaning mechanism is arranged below the vehicle body, the cleaning mechanism will interfere with the vehicle body when it is retracted. Therefore, the existing cleaning mechanism cannot match the installation scenario of small heliostats well.

[0008] 5. Existing solar thermal mirror field cleaning vehicles all use fuel as power, and the emissions after combustion will cause certain pollution to the environment. Utility Model Content

[0009] In order to solve the above technical problems, the utility model provides a small heliostat cleaning vehicle, which is small in size, light in weight, easy to adjust the position of the cleaning mechanism, and improves the cleaning effect. In addition, the cleaning vehicle uses an electric drive device, which achieves the purpose of being green, environmentally friendly, and pollution-free.

[0010] In order to achieve the above object, the technical solution of the utility model is as follows:

[0011] A small heliostat cleaning vehicle comprises a mobile body and a water tank, an electric control cabinet and a distance adjustment mechanism installed on the mobile body, the distance adjustment mechanism comprises two groups, which are respectively arranged on the left and right sides of the rear of the mobile body, and a cleaning mechanism is installed on the distance adjustment mechanism, the cleaning mechanism comprises a roller brush mechanism, a scraper mechanism and a water spray mechanism, the roller brush mechanism and the scraper mechanism are fixedly connected by an upper connecting rod and a lower connecting rod; the water spray mechanism comprises a water spray pipe and a nozzle arranged on the water spray pipe, the water spray pipe is fixed on the frame of the roller brush mechanism and is located between the roller brush mechanism and the scraper mechanism, and the nozzle faces the scraper mechanism; the scraper mechanism comprises a scraper frame and at least two scrapers installed on the scraper frame, and the length of the scrapers gradually increases in order from front to back; two brackets extending forward are installed on the frame of the roller brush mechanism, and a detection sensor 1 is installed on the bracket 1, and a bracket 2 extending backward is installed on the scraper frame, and a detection sensor 2 is installed on the bracket 2.

[0012] In the above scheme, the distance adjustment mechanism includes a base and a linear module installed on the base, the movable end of the linear module is installed with an L-shaped movable support, and connecting rod 1 and connecting rod 2 are respectively installed on both sides of the L-shaped structure of the movable support, one end of the connecting rod 1 is rotatably installed on the movable support through a positioning pin, the other end of the connecting rod 1 and one end of the connecting rod 2 are connected through a connecting pin, and the other end of the connecting rod 2 is connected to a lower connecting rod through a rotating pin, and arc grooves are respectively opened on both sides of the L-shaped structure of the movable support, and the middle parts of the connecting rod 1 and the connecting rod 2 pass through the arc grooves through locking pins, and can slide in the arc grooves.

[0013] In a further technical solution, an electric push rod is hinged on the second connecting rod, and the moving end of the electric push rod is hinged on the upper connecting rod.

[0014] In the above scheme, the roller brush mechanism includes a frame and a roller brush mounted on the frame, a motor is mounted on the top of the frame, the motor is connected to one end of the roller brush through a coupling, and the other end of the roller brush is mounted on the frame through a bearing.

[0015] In the above scheme, the scraper is folded in a manner that one side is longer and the other side is shorter, and then fixed in the square groove of the scraper frame by means of pressure strips and bolts.

[0016] In the above solution, the mobile vehicle is a four-wheel drive electric vehicle.

[0017] Through the above technical solution, the small heliostat cleaning vehicle provided by the utility model has the following beneficial effects:

[0018] 1. The nozzle of the utility model does not adopt the arrangement mode of vertically spraying toward the mirror surface, but is tilted at a certain angle to flush toward the scrubbing blade, which can effectively shorten the distance between the spraying water flow and the scrubbing blade and improve the utilization rate of water.

[0019] 2. The scraper of the utility model adopts a multi-layer scrubbing structure in which the scraper material gradually increases. The multi-layer scrubbing and the contact pressure between the scraper and the mirror surface gradually increase, which effectively improves the cleaning effect.

[0020] 3. The utility model adopts a small four-wheel drive electric vehicle with small body size, light weight, flexible and simple operation, strong ground passability, and the power supply of the electric vehicle can provide power for the cleaning mechanism without the need for additional power devices.

[0021] 4. The distance adjustment mechanism of the utility model can retract the cleaning mechanism and place it inside the vehicle body without interfering with the vehicle body, and ensure that the cleaning mechanism can clean the entire mirror surface of the small heliostat that is relatively low to the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0023] Figure 1 A schematic diagram of a small heliostat cleaning vehicle disclosed in an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the connection between the distance adjustment mechanism and the cleaning mechanism;

[0025] Figure 3 It is a schematic diagram of the scraper mechanism;

[0026] Figure 4 It is a schematic diagram of the roller brush mechanism;

[0027] Figure 5 Schematic diagram of the movable support structure; (a) is extended to the limit position; (b) is the movable support; (c) is retracted to the limit position.

[0028] In the figure, 1. mobile body; 2. water tank; 3. electric control cabinet; 4. distance adjustment mechanism; 5. roller brush mechanism; 6. scraper mechanism; 7. water spray mechanism; 8. upper connecting rod; 9. lower connecting rod; 10. water spray pipe; 11. nozzle; 12. scraper; 13. pressure strip; 14. scraper frame; 15. frame; 16. roller brush; 17. motor; 18. coupling; 19. bearing; 20. bracket one; 21. detection sensor one; 22. bracket two; 23. detection sensor two; 24. base; 25. linear module; 26. mobile support; 27. connecting rod one; 28. connecting rod two; 29. ​​positioning pin; 30. connecting pin; 31. rotating pin; 32. arc groove; 33. locking pin; 34. electric push rod; 35. bolt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] The utility model provides a small heliostat cleaning vehicle, such as Figure 1 As shown, it includes a mobile body 1 and a water tank 2, an electric control cabinet 3 and a distance adjustment mechanism 4 installed on the mobile body 1. In this embodiment, the mobile body 1 is a four-wheel drive electric vehicle with a small size, light weight, flexible and simple operation, and good road passing performance. Its battery pack provides power for the water pump, motor 17, electronic control system, etc.

[0031] like Figure 2 As shown, the distance adjustment mechanism 4 includes two groups, which are respectively arranged on the left and right sides of the rear of the mobile body 1. A cleaning mechanism is installed on the distance adjustment mechanism 4, and the cleaning mechanism includes a roller brush mechanism 5, a scraper mechanism 6 and a water spray mechanism 7. The roller brush mechanism 5 and the scraper mechanism 6 are fixedly connected by an upper connecting rod 8 and a lower connecting rod 9; the water spray mechanism 7 includes a water spray pipe 10 and a nozzle 11 arranged on the water spray pipe 10, and the water spray pipe 10 is connected to the water tank 2 through a water pump. The water spray pipe 10 is fixed on the frame of the roller brush mechanism 5 and is located between the roller brush mechanism 5 and the scraper mechanism 6. The nozzle 11 faces the scraper mechanism 6. The installation form of the nozzle 11 tilted toward the scraper can effectively shorten the distance between the spray water flow and the scrubbing scraper, and can improve the utilization efficiency of the cleaning water to prevent waste.

[0032] like Figure 3As shown, the scraper mechanism 6 includes a scraper frame 14 and at least two scrapers 12 mounted on the scraper frame 14, and the length of the scraper 12 gradually increases from front to back; in this embodiment, the three scrapers 12 are folded in a way that one side is longer and the other side is shorter, and are fixed in the aluminum alloy square groove of the scraper frame 14 through the pressure strip 13 and the bolt 35. Among them, the material of the scraper 12 can be selected from polyethylene, rubber, sponge and other materials. In this embodiment, the length of the scraper 12 gradually increases, and as the vehicle moves forward, the contact pressure between the scraper 12 and the mirror surface gradually increases, which can effectively improve the cleaning effect.

[0033] like Figure 4 As shown, the roller brush mechanism 5 includes a frame 15 and a roller brush 16 mounted on the frame 15 , a motor 17 is mounted on the top of the frame 15 , the motor 17 is connected to one end of the roller brush 16 through a coupling 18 , and the other end of the roller brush 16 is mounted on the frame through a bearing 19 .

[0034] like Figure 2 As shown, two brackets 20 extending forward are installed on the frame 15 of the roller brush mechanism 5, and a detection sensor 21 is installed on the bracket 20 for detecting the entry into the mirror surface. The measured distances of the upper and lower groups of sensors are compared for angle adjustment. A bracket 22 extending backward is installed on the scraper frame 14, and a detection sensor 23 is installed on the bracket 22 for detecting the exit from the mirror surface.

[0035] The distance adjustment mechanism 4 includes a base 24 and a linear module 25 mounted on the base 24. The base 24 is mounted on the mobile vehicle body 1 by bolts. The moving end of the linear module 25 is installed with an L-shaped moving support 26. Figure 5 As shown in (a), a connecting rod 1 27 and a connecting rod 28 are respectively installed on both sides of the L-shaped structure of the movable support 26. One end of the connecting rod 1 27 is rotatably installed on the movable support 26 through a positioning pin shaft 29, and the other end of the connecting rod 1 27 and one end of the connecting rod 28 are connected through a connecting pin shaft 30. The other end of the connecting rod 28 is connected to the lower connecting rod 9 through a rotating pin shaft 31. Figure 5 As shown in (b), arc grooves 32 are respectively provided on both sides of the L-shaped structure of the movable support 26, and the middle parts of the connecting rod 1 27 and the connecting rod 2 28 pass through the arc grooves 32 through the locking pin shaft 33, and can slide in the arc grooves 32. When the linear module 25 moves the cleaning mechanism to the innermost side, as shown in FIG. Figure 5 As shown in (a), the cleaning mechanism is still outside the vehicle body. Loosen the locking pin 33, manually operate the connecting rod 1 27 and the connecting rod 28 to rotate along the arc groove 32, and move the cleaning mechanism to the inner side of the vehicle body. Figure 5 As shown in (c).

[0036] like Figure 2As shown, an electric push rod 34 is hinged on the second connecting rod 28, and the moving end of the electric push rod 34 is hinged on the upper connecting rod 8. The pitch angle of the cleaning mechanism can be adjusted by the electric push rod 34.

[0037] Workflow: adjust the distance adjustment device, loosen the locking pin 33, manually operate the connecting rod 1 27 and the connecting rod 2 28 to rotate outward along the arc groove 32, and move the cleaning mechanism to the outside of the vehicle body. Start the vehicle to move forward, the detection sensor 1 21 detects the distance between the cleaning mechanism and the mirror surface, the linear module 25 moves the cleaning mechanism outward or inward according to the measured value, the electric push rod 34 adjusts the angle of the cleaning mechanism, the roller brush motor 17 starts, the water pump starts with a delay, the water spray pipe 10 starts to spray water, and the electric vehicle moves forward. According to the installation sequence, the roller brush enters the mirror surface first, then the nozzle 11 enters, and the scraper enters the mirror surface last. When the vehicle drives out of the mirror surface, when the detection sensor 2 23 cannot detect the mirror signal, turn off the roller brush motor 17 and the water pump, stop spraying water, until the next mirror signal is detected, and repeat the above-mentioned workflow. During the vehicle driving process, the cleaning mechanisms on both sides can clean the heliostats on both sides at the same time, or only one side.

[0038] It should be noted that when the detection sensor 21 detects that the distance between the cleaning mechanism and the mirror surface is greater than or less than the allowable limit distance, the driver is reminded to adjust the forward direction. When the distance is within the allowable range, the linear module 25 moves the cleaning mechanism outward or inward according to the measured value; if there is a difference in the measured values ​​of the upper and lower groups of sensors, the angle adjustment electric push rod 34 adjusts the angle of the cleaning mechanism to ensure that the measured values ​​of the upper and lower groups of sensors are basically consistent; after the detection sensor 21 detects the mirror surface, the delay time is automatically calculated based on the distance between the sensor and the water spray pipe 10, combined with the vehicle speed feedback, the water pump is started, and the water spray pipe 10 sprays water; during the entire operation process, the driver only needs to pay attention to the alarm signal feedback from the cab display screen, and there are no other complicated operations, and the operation is simple and convenient.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A small heliostat cleaning vehicle, characterized in that: It includes a mobile body and a water tank, an electric control cabinet and a distance adjustment mechanism installed on the mobile body, the distance adjustment mechanism includes two groups, which are respectively arranged on the left and right sides of the rear of the mobile body, the distance adjustment mechanism is installed with a cleaning mechanism, the cleaning mechanism includes a roller brush mechanism, a scraper mechanism and a water spray mechanism, the roller brush mechanism and the scraper mechanism are fixedly connected by an upper connecting rod and a lower connecting rod; the water spray mechanism includes a water spray pipe and a nozzle arranged on the water spray pipe, the water spray pipe is fixed on the frame of the roller brush mechanism and is located between the roller brush mechanism and the scraper mechanism, and the nozzle faces the scraper mechanism; the scraper mechanism includes a scraper frame and at least two scrapers installed on the scraper frame, and the length of the scraper gradually increases from front to back; two brackets extending forward are installed on the frame of the roller brush mechanism, and a detection sensor 1 is installed on the bracket 1, and a bracket 2 extending backward is installed on the scraper frame, and a detection sensor 2 is installed on the bracket 2.

2. A small heliostat cleaning vehicle according to claim 1, characterized in that: The distance adjustment mechanism includes a base and a linear module installed on the base, the movable end of the linear module is installed with an L-shaped movable support, and connecting rod 1 and connecting rod 2 are respectively installed on both sides of the L-shaped structure of the movable support, one end of the connecting rod 1 is rotatably installed on the movable support through a positioning pin, the other end of the connecting rod 1 and one end of the connecting rod 2 are connected through a connecting pin, and the other end of the connecting rod 2 is connected to a lower connecting rod through a rotating pin, and arc grooves are respectively opened on both sides of the L-shaped structure of the movable support, and the middle parts of the connecting rod 1 and the connecting rod 2 pass through the arc grooves through locking pins, and can slide in the arc grooves.

3. A small heliostat cleaning vehicle according to claim 2, characterized in that: An electric push rod is hinged on the second connecting rod, and the moving end of the electric push rod is hinged on the upper connecting rod.

4. The small heliostat cleaning vehicle according to claim 1, characterized in that: The roller brush mechanism comprises a frame and a roller brush mounted on the frame. A motor is mounted on the top of the frame. The motor is connected to one end of the roller brush through a coupling, and the other end of the roller brush is mounted on the frame through a bearing.

5. The small heliostat cleaning vehicle according to claim 1, characterized in that: After the scraper is folded in a manner in which one side is longer than the other side, it is fixed in a square groove of the scraper frame by means of pressure strips and bolts.

6. The small heliostat cleaning vehicle according to claim 1, characterized in that: The mobile vehicle body is a four-wheel drive electric vehicle.

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