Heliostat cleaning device

Abstract

The utility model provides a heliostat cleaning device, which reduces the processing depth on both sides of the first through hole by shortening the axial length of bearings installed on both sides of the first through hole, thereby reducing the processing cost. Specifically, the traditional single copper sleeve needs to be adapted to the length of the pin shaft, so the traditional pin shaft hole processing accuracy requirements and costs are relatively high. Compared with the traditional pin shaft hole, the first through hole is a pin shaft hole with bearing mounting holes on both sides. Because the axial length of the two bearings arranged in the first through hole is relatively short, the processing depth of the bearing mounting holes on both sides of the first through hole can be reduced, thereby reducing the depth required for processing the first through hole. The first connecting part is sleeved outside the pin shaft through the first through hole, and bearings are arranged at both ends of the first through hole. The bearings at both ends of the first through hole are tightly matched with the pin shaft to prevent wind and sand from entering, thereby reducing the friction and wear between the pin shaft and the pin shaft hole, improving the stability and precision of the machine, and thus ensuring the cleaning effect.

Description

Technical Field

[0001] The utility model relates to the technical field of solar thermal power generation, and in particular to a heliostat cleaning device. Background Art

[0002] Solar energy is increasingly used as a clean and renewable energy source, especially solar thermal power generation technology, which is an emerging solar energy utilization technology after photovoltaic power generation technology. The function of the heliostat in tower solar thermal power generation is to focus sunlight onto the absorber, and the cleanliness of the heliostat mirror will affect the mirror reflectivity, and then affect the incident energy of the absorber. Therefore, a cleaning device is needed to clean the heliostat regularly.

[0003] A heliostat cleaning device generally includes a support column, a lever arm and a cleaning mechanism, wherein the cleaning mechanism is installed at one end of the lever arm, and the other end of the lever arm is rotatably connected to the support column for adjusting the height of the cleaning mechanism so that the bristles are positioned on the heliostat. Currently, the roads of most solar thermal power stations are bumpy, and the site selection for tower solar thermal projects has strong wind and sand. Due to environmental influences, the rotation accuracy of the rotating structure installed in the cleaning device is reduced, resulting in a reduction in the cleaning effect or the mirror surface being damaged due to the reduced positioning accuracy of the cleaning mechanism. In addition, the rotating structure of the heliostat cleaning device currently used is relatively complex, resulting in high maintenance costs and long maintenance time. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a heliostat cleaning device, which has the advantages of simple structure, low cost, high precision, reliable structure, and convenient installation, and solves the problem that the mirror surface will not be damaged under conditions of strong wind and sand and bumpy road conditions, and the cleaning effect is good. The utility model provides a heliostat cleaning device, including a support column, a force arm, a rotating connection structure and a cleaning mechanism, one end of the force arm is rotatably arranged on the support column through the rotating connection structure, and the rotating connection structure includes a first connection part, a bearing and a pin;

[0005] A first through hole is provided in the first connecting portion, and the bearings are transitionally matched at both ends of the first through hole in the axial direction, and the pin is arranged in the bearing, and the pin is tightly matched with the bearing;

[0006] The cleaning mechanism is installed on the end of the force arm opposite to the rotating connection structure, and the cleaning mechanism is used to clean the heliostat;

[0007] Among them, the sum of the axial lengths of the two bearings does not exceed the axial length of the first through hole. By arranging bearing mounting holes on both sides of the pin shaft hole as the first through hole, and because the axial lengths of the two bearings arranged in the first through hole are shorter, the processing depth on both sides of the first through hole can be reduced. The traditional single copper sleeve needs to be adapted to the length of the pin shaft, so that the traditional mounting hole needs to be processed into an aperture adapted to the copper sleeve. Compared with the traditional mounting hole, the depth required for processing the first through hole is reduced, which reduces the cost and makes the installation of the bearing more convenient. In addition, the first connecting part is sleeved on the outside of the pin shaft through the first through hole, and bearings are arranged at both ends of the first through hole. The bearings at both ends of the first through hole are tightly matched with the pin shaft to prevent wind and sand from entering, reduce the friction and wear between the pin shaft and the pin shaft hole, improve the stability and precision of the machine, and thus ensure the cleaning effect.

[0008] Preferably, the first connecting portion comprises a pin sleeve fixedly arranged on the first base, and the shaft hole in the pin sleeve is the first through hole;

[0009] Wherein, the first base is the lever arm, or the first base is detachably arranged on the lever arm.

[0010] Preferably, second reinforcement members are provided on both side walls of the first connecting portion along the axial direction of the first through hole, and the second reinforcement members correspond to the positions of the first through hole.

[0011] Preferably, an anti-wear blocking member is sleeved outside the pin shaft, and the anti-wear blocking member is used to prevent contact between the first connecting portion and the supporting column.

[0012] Preferably, the bearing is a flanged bearing, and the flange of the flanged bearing is the anti-wear blocking member.

[0013] Preferably, two lugs are provided on one side of the column body of the support column, and through holes are opened on the two lugs. The through holes on the two lugs are second through holes, and the two ends of the pin shaft are respectively penetrated into the corresponding second through holes.

[0014] Preferably, a first reinforcement member is provided on the lug, and the first reinforcement member includes a first reinforcement plate provided on the side wall of the lug and surrounding the second through hole on the lug, and a plurality of reinforcement ribs provided on the side wall of the lug and sequentially arranged along the circumference of the second through hole.

[0015] Preferably, pin end cover slots are provided on both sides of the pin shaft, and pin end covers are provided at both ends of the pin shaft. The pin end covers are directly or indirectly arranged on the support column, and the pin end covers are inserted into the pin end cover slots to prevent the pin shaft from rotating and axially moving.

[0016] Preferably, at least one lubrication channel is provided on the pin shaft, and the lubrication channel includes at least one lubrication channel inlet and one lubrication channel outlet, and the lubrication channel is used to add lubricating oil between the pin shaft and the bearing.

[0017] Preferably, the support column is arranged to be inclined relative to a horizontal plane toward a side away from the cleaning mechanism.

[0018] Preferably, it further comprises a linear actuation mechanism for driving the force arm to rotate around the central axis of the pin shaft;

[0019] The linear actuating mechanism comprises a first end and a second end which can move toward and away from each other, wherein the first end is hinged to the supporting column, and the second end is connected to the force arm.

[0020] Wherein, the connection position between the linear actuating mechanism and the lever arm serves as the fulcrum of the lever arm, so that a lever structure is formed on both sides of the lever arm.

[0021] Preferably, the lever arm is a telescopic structure lever arm, and the cleaning mechanism is installed on the telescopic end of the telescopic structure lever arm.

[0022] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0023] 1. The heliostat cleaning device provided by the utility model reduces the processing depth on both sides of the first through hole by shortening the axial length of the bearings installed on both sides of the first through hole, thereby reducing the processing cost. Specifically, the traditional single copper sleeve needs to be adapted to the length of the pin shaft, so the traditional pin shaft hole needs to be processed with the axial diameter of the copper sleeve The entire pin shaft hole requires high processing accuracy and cost. Compared with the traditional pin shaft hole, the first through hole is a pin shaft hole with bearing mounting holes on both sides. Because the axial length of the two bearings arranged in the first through hole is shorter, the processing depth of the bearing mounting holes on both sides of the first through hole can be reduced, thereby reducing the depth required for processing the first through hole, reducing the cost, and facilitating the installation of the bearings. In addition, the first connecting portion is sleeved outside the pin shaft through the first through hole, and bearings are arranged at both ends of the first through hole. The bearings at both ends of the first through hole are tightly matched with the pin shaft to prevent wind and sand from entering, reducing the friction and wear between the pin shaft and the pin shaft hole, improving the stability and precision of the machine, and thus ensuring the cleaning effect.

[0024] 2. In the heliostat cleaning device provided by the utility model, the flanged bearing is arranged between the first connecting part and the support column. The arrangement of the flanged bearing reduces the wear of the relative rotation between the first connecting part and the support column, improves the stability and precision of the machine, and the flanged bearing is also convenient to disassemble and install, thereby reducing the maintenance time.

[0025] 3. In the heliostat cleaning device provided by the utility model, reinforcement members are provided on the first connecting part and the supporting column, which are used to enhance the structural strength and bearing capacity of the rotating connection between the first connecting part and the supporting column, so that it is not easy to deform. When the road surface is rough and the lever arm is extended, it has the effect of not deforming when subjected to large force and having a light weight, and can be better used in places with bumpy roads and soft geology.

[0026] 4. In the heliostat cleaning device provided by the utility model, a lubrication channel is provided on the pin shaft so that the lubricating oil can easily enter between the flange bearing and the pin shaft, which is suitable for on-site maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0028] Figure 1 This is a schematic diagram of the overall positive structure of the rotating connection structure in the utility model;

[0029] Figure 2 It is an overall oblique view of the rotating connection structure in the utility model;

[0030] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0031] Figure 4 For this utility model Figure 2 An exploded view of the enlarged part at B in the middle;

[0032] Figure 5 For this utility model Figure 3 Internal section view at C in the middle;

[0033] Figure 6 It is an internal cross-sectional view of the rotating connection structure in the utility model.

[0034] The corresponding relationship between each mark and component name is as follows:

[0035] 1. Support column; 2. Lever; 3. Reinforcement rib; 4. Fastener; 5. Pin end cover; 6. First reinforcement plate; 7. Pin; 8. Grease fitting; 9. Flanged bearing; 10. Pin sleeve; 11. Linear actuator mechanism; 12. Triangular reinforcement plate; 13. Mounting seat; 14. Cleaning mechanism. DETAILED DESCRIPTION

[0036] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0037] Example

[0038] Reference Figure 1 , Figure 2 As shown, a cleaning mechanism 14 is installed at one end of the lever arm 2, and the other end of the lever arm 2 is rotatably installed on the support column 1 through a rotating connection structure; the lever arm 2 is rotatably connected to the support column 1 for adjusting the height of the cleaning mechanism 14 so that the cleaning mechanism 14 can be positioned to a position that meets the preset requirements.

[0039] In this embodiment, a linear actuation mechanism is also included, which is used to drive the force arm to rotate around the central axis of the pin shaft;

[0040] The linear actuating mechanism comprises a first end and a second end which can move closer to and farther from each other, wherein the first end is hinged to the supporting column, and the second end is connected to the force arm.

[0041] The connection position between the linear actuating mechanism and the lever arm serves as the fulcrum of the lever arm, so that a lever structure is formed on both sides of the lever arm.

[0042] Specifically, refer to Figure 1 , Figure 2 As shown, the tail of the linear actuator 11 is hinged on the mounting seat 13 on the lever arm 2, and the head of the linear actuator 11 is spherically hinged on the support column 1, which is used to drive the lever arm 2 to rotate relative to the support column 1. The linear actuator 11 is a combination of one or more of an electric push rod, a telescopic hydraulic cylinder, a telescopic cylinder, and a scissor jack, which is not limited here. The structure pushes the lever arm 2 through the linear actuator 11 so that the lever arm 2 and the support column 1 rotate relative to each other, thereby realizing the height positioning of the cleaning mechanism 14. For example, the cleaning mechanism 14 is installed on one end of the lever arm away from the rotating connection structure, and the linear actuator drives the lever arm to rotate around the central axis of the pin shaft, and the mirror surface of the heliostat is cleaned by the cleaning device.

[0043] In another embodiment, the lever arm in the cleaning mechanism 14 may also use a telescopic structure lever arm, and a cleaning mechanism is installed on the telescopic end of the telescopic structure lever arm. The telescopic structure brings the cleaning device close to the heliostat, and the cleaning device cleans the mirror surface of the heliostat.

[0044] This embodiment provides a rotation connection structure of a heliostat cleaning device, where the rotation connection structure is used to rotationally connect a force arm 2 and a support column 1 .

[0045] Reference Figure 3-6 As shown, the rotating connection structure in this embodiment includes:

[0046] A first connecting portion, a bearing and a pin 7;

[0047] A first through hole is provided in the first connecting portion, and bearings are transitionally matched at both ends of the first through hole in the axial direction, and the pin shaft is arranged in the bearing, and the pin shaft and the bearing are tightly matched;

[0048] Wherein, the sum of the axial lengths of the two bearings does not exceed the axial length of the first through hole.

[0049] Specifically, a first through hole is provided in the first connecting part, and bearings are transitionally fitted at both ends of the first through hole in the axial direction. The bearings are used to prevent the entry of wind and sand while reducing the friction and wear between the pin shaft 7 and the pin shaft hole, thereby improving the stability and precision of the machine; the first connecting part is rotatably mounted on the outside of the pin shaft 7 through the first through hole, the pin shaft 7 and the bearing are tightly fitted, and the two ends of the pin shaft 7 are rotatably connected to the support column 1 respectively; the pin shaft 7 is used to support the force arm 2 and ensure that the support and the force arm 2 can rotate relative to each other.

[0050] In this embodiment, by reducing the axial length of the bearings installed on both sides of the first through hole, the processing depth on both sides of the first through hole is reduced, thereby reducing the processing cost. Specifically, the traditional single copper sleeve needs to be adapted to the length of the pin shaft 7, so the traditional pin shaft hole needs to be processed with the axial diameter of the copper sleeve The entire pin shaft hole requires high processing accuracy and cost requirements, and relative to the traditional pin shaft hole, the first through hole is a pin shaft hole with bearing mounting holes on both sides. Because the axial length of the two bearings arranged in the first through hole is shorter, the processing depth of the bearing mounting holes on both sides of the first through hole can be reduced, thereby reducing the depth required for processing the first through hole, reducing the cost, and making the installation of the bearings more convenient. In addition, the first connecting portion is sleeved on the outside of the pin shaft 7 through the first through hole, and bearings are arranged at both ends of the first through hole. The bearings at both ends of the first through hole are tightly matched with the pin shaft 7 to prevent the entry of wind and sand, reduce the friction and wear between the pin shaft 7 and the pin shaft hole, improve the stability and accuracy of the machine, and thus ensure the cleaning effect.

[0051] In one embodiment, the first connecting portion includes a pin sleeve 10 fixedly disposed on the first base, and the shaft hole in the pin sleeve 10 is a first through hole.

[0052] Specifically, the first base is the force arm 2, the pin sleeve 10 is welded to the first base, two bearings are installed at both ends of the pin sleeve 10 with transition fit, the pin is tightly fitted in the pin sleeve 10, and both ends of the pin are rotatably connected to the support column 1.

[0053] In this embodiment, an anti-wear blocking member is sleeved on the pin shaft, and the anti-wear blocking member is used to prevent the first connecting portion from contacting with the support column 1 .

[0054] Specifically, when the heliostat cleaning device is in use, the relatively rotating parts suffer greater wear, which affects the rotation accuracy, thereby resulting in a decrease in the cleaning effect or damage to the mirror surface. Therefore, in this embodiment, an anti-wear blocking member is provided on the outer sleeve of the pin shaft 7, which is used to block the contact between the first connecting portion and the support column 1, thereby reducing the wear caused by the relative rotation of the relatively rotating parts.

[0055] In this embodiment, the bearing is a flanged bearing 9, and the flange of the flanged bearing 9 is an anti-wear barrier.

[0056] Specifically, refer to Figure 3-Figure 4 As shown, the bearing is a flanged bearing 9, and the flange of the flanged bearing 9 is an anti-wear barrier. The flange of the flanged bearing 9 reduces the wear of the relative rotation between the first connecting part and the support column 1.

[0057] In one embodiment, the anti-wear blocking member may be an annular member fixedly sleeved on the outside of the pin shaft 7 .

[0058] In this embodiment, two lugs are provided on one side of the column body of the support column, and through holes are opened on the two lugs. The through holes on the two lugs are second through holes, and the two ends of the pin shaft are respectively penetrated into the corresponding second through holes.

[0059] Specifically, refer to Figure 3 As shown, the support column 1 may include two lugs disposed on the column body of the support column, and the two lugs are each provided with a second through hole, and the two ends of the pin shaft 7 are respectively passed through the second through holes and are disposed in the corresponding second through holes; Figure 3 As shown, the first connection part and the support column 1 both include reinforcement members, which may be reinforcement ribs 3 or reinforcement plates. The reinforcement members increase the structural strength of the structures corresponding to the pin shaft 7 on the first connection part and the support column 1, thereby enhancing the bearing capacity of the rotational connection between the lever arm 2 and the support column 1. When the road surface is bumpy and the lever arm 2 is extended, it has the effect of not deforming when subjected to large forces and having a light weight, so that the rotational connection structure in the utility model can be applied to places with bumpy roads and soft geology.

[0060] In this embodiment, a first reinforcement member is provided on the lug, and the first reinforcement member includes a first reinforcement plate 6 provided on the side wall of the lug and surrounding the second through hole on the lug, and a plurality of reinforcement ribs 3 provided on the side wall of the lug and sequentially arranged along the circumference of the second through hole.

[0061] Specifically, refer to Figure 4-Figure 5As shown, in one embodiment, the first reinforcement member includes a first reinforcement plate 6 disposed on the side wall of the lug and surrounding the second through hole on the lug, and at least one reinforcement rib 3 disposed on the side wall of the lug and sequentially disposed along the circumference of the second through hole. The first reinforcement plate 6 and the reinforcement rib 3 can be fixed to the lug by welding. By reinforcing the structural strength of the pin shaft 7 and the support column 1, it is not easy to deform.

[0062] In this embodiment, second reinforcement members are provided on both side walls of the first connection portion along the axial direction of the first through hole, and the second reinforcement members correspond to the positions of the first through hole.

[0063] For details, see Figure 4-5 , the second reinforcement is provided on both side walls of the first connection portion along the axial direction of the first through hole, and the second reinforcement corresponds to the position of the first through hole. For example, the second reinforcement can be a triangular reinforcement plate 12, and the triangular reinforcement plate 12 is provided with a third through hole coaxially arranged with the first through hole. When the second reinforcement is arranged on the side wall of the first base, the flanged bearing 9 is connected to the triangular reinforcement plate 12 through the fastener 4, and the triangular reinforcement plate 12 is welded to the first base to strengthen the bearing capacity of this part so that it is not easy to deform. For example, when the second reinforcement is a triangular reinforcement plate 12, the flange of the flanged bearing 9 is located between the triangular reinforcement plate 12 and the lug.

[0064] In this embodiment, pin end cover slots are provided on both sides of the pin shaft 7, and pin end covers 5 are provided at both ends of the pin shaft 7. The pin end covers 5 are directly or indirectly arranged on the support column 1, and the pin end covers 5 are inserted into the pin end cover slots.

[0065] Specifically, the two ends of the pin shaft 7 are respectively provided with a pin shaft end cover 5, and the pin shaft end cover 5 is fixed to the support column 1 or the lug with screws. The two sides of the pin shaft 7 are respectively provided with a pin shaft end cover slot, and the pin shaft end cover 5 is inserted into the pin shaft end cover slot to prevent the pin shaft 7 from rotating and axially moving, and ensure that the pin shaft 7 will not fall off from the first through hole. It should be noted that the connection between the pin shaft end cover 5 and the support column 1 or the lug is not limited to the screw fixed connection, and other fixed connection methods or detachable connection methods can be applied to the present invention to achieve relative fixation between the pin shaft end cover 5 and the support column 1 or the lug.

[0066] In this embodiment, at least one lubrication channel is provided on the pin shaft 7, and the lubrication channel includes at least one lubrication channel inlet and one lubrication channel outlet, and a grease nipple is provided at the lubrication channel inlet. Figure 5 , Figure 6 As shown, a grease nipple 8 is arranged at one end of the pin shaft 7, and a lubrication channel is arranged in the pin shaft 7 to facilitate the lubrication oil to enter between the pin shaft 7 and the flange bearing 9, thereby reducing friction and wear, and being suitable for on-site maintenance.

[0067] In one embodiment, the support column is arranged to be inclined relative to the horizontal plane toward a side away from the cleaning mechanism.

[0068] In this embodiment, refer to Figure 1 , Figure 2 As shown, the support column is tilted relative to the horizontal plane toward the side away from the cleaning mechanism, and the pin shaft 7 is installed as far away from the mounting seat 13 as possible, thereby changing the distance between the pin shaft 7 and the mounting seat 13, so as to reduce the force on the pin shaft 7, the linear actuating mechanism, and the force on the first connecting portion, the support column 1 and the connecting portion of the pin shaft 7. The support column is tilted relative to the horizontal plane toward the side away from the cleaning mechanism, and the tilted setting makes the center of gravity of the support column 1 as a whole move toward the side away from the cleaning mechanism. In order to cooperate with the tilted setting of the support column 1, the lever arm 2 is also correspondingly lengthened toward the non-cleaning side, so that the center of gravity of the lever arm 2 as a whole also wants to move away from the cleaning mechanism.

[0069] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A heliostat cleaning device, characterized in that: It includes a support column, a force arm, a rotating connection structure and a cleaning mechanism, one end of the force arm is rotatably arranged on the support column through the rotating connection structure, and the rotating connection structure includes a first connection part, a bearing and a pin shaft; A first through hole is provided in the first connecting portion, and the bearings are transitionally matched at both ends of the first through hole in the axial direction, and the pin is arranged in the bearing, and the pin is tightly matched with the bearing; The cleaning mechanism is installed on the end of the force arm opposite to the rotating connection structure, and the cleaning mechanism is used to clean the heliostat; Wherein, the sum of the axial lengths of the two bearings does not exceed the axial length of the first through hole.

2. The heliostat cleaning device according to claim 1, characterized in that: The first connecting portion includes a pin sleeve fixedly arranged on the first base, and the shaft hole in the pin sleeve is the first through hole; Wherein, the first base is the lever arm, or the first base is detachably arranged on the lever arm.

3. The heliostat cleaning device according to claim 2, characterized in that: Second reinforcement members are provided on both side walls of the first connection portion along the axial direction of the first through hole, and the second reinforcement members correspond to the positions of the first through hole.

4. The heliostat cleaning device according to claim 1 or 3, characterized in that: An anti-wear blocking member is sleeved outside the pin shaft, and the anti-wear blocking member is used to prevent the first connecting portion from contacting with the supporting column.

5. The heliostat cleaning device according to claim 4, characterized in that: The bearing is a flanged bearing, and the flange of the flanged bearing is the anti-wear blocking member.

6. The heliostat cleaning device according to claim 1, characterized in that: Two lugs are arranged on one side of the column body of the support column, and through holes are opened on the two lugs. The through holes on the two lugs are second through holes, and the two ends of the pin shaft are respectively penetrated into the corresponding second through holes.

7. The heliostat cleaning device according to claim 6, characterized in that: The lug is provided with a first reinforcement member, which includes a first reinforcement plate provided on the lug side wall and surrounding the second through hole on the lug, and a plurality of reinforcement ribs provided on the lug side wall and sequentially arranged along the circumference of the second through hole.

8. The heliostat cleaning device according to claim 1 or 7, characterized in that: Pin end cover slots are respectively provided on both sides of the pin shaft, and pin end covers are provided at both ends of the pin shaft. The pin end covers are directly or indirectly arranged on the support column, and the pin end covers are inserted into the pin end cover slots to prevent the pin shaft from rotating and axially moving.

9. The heliostat cleaning device according to claim 1, characterized in that: At least one lubrication channel is arranged on the pin shaft, and the lubrication channel includes at least one lubrication channel inlet and one lubrication channel outlet, and the lubrication channel is used to add lubricating oil between the pin shaft and the bearing.

10. The heliostat cleaning device according to claim 1, characterized in that: The support column is arranged to be inclined relative to a horizontal plane and toward a side away from the cleaning mechanism.

11. The heliostat cleaning device according to claim 1, characterized in that: Also included is a linear actuation mechanism for driving the force arm to rotate around the central axis of the pin shaft; The linear actuation mechanism comprises a first end and a second end which can approach and move away from each other, the first end being connected to the support column with a ball joint, and the second end being connected to the force arm; Wherein, the connection position between the linear actuating mechanism and the lever arm serves as the fulcrum of the lever arm, so that a lever structure is formed on both sides of the lever arm.

12. The heliostat cleaning device according to claim 1, characterized in that: The lever arm is a telescopic structure lever arm, and the cleaning mechanism is installed on the telescopic end of the telescopic structure lever arm.

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