CN110773474A

CN110773474A - Crossing type heliostat cleaning vehicle

Info

Publication number: CN110773474A
Application number: CN201911145340.2A
Authority: CN
Inventors: 魏永辰; 王一奇; 曾召生; 雷黎明; 陈阳
Original assignee: Suzhou Dafang Special Vehicle Co Ltd
Current assignee: Suzhou Dafang Special Vehicle Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-02-11

Abstract

The invention relates to a crossing heliostat cleaning vehicle, which comprises a traveling mechanism, a jacking mechanism, a rolling brush mechanism, a water spraying mechanism, a driving mechanism and a power source, wherein the traveling mechanism comprises girders extending along the front and back directions of the cleaning vehicle and wheel assemblies connected to the bottoms of the girders, and a heliostat cleaning area is formed between the girders on two sides; the rolling brush mechanism comprises a rolling brush bracket and a rolling brush connected to the rolling brush bracket; the water spraying and mechanism comprises a nozzle and a liquid supply assembly for supplying liquid to the nozzle, the rolling brush and the nozzle are located above the cleaning area, and the jacking mechanism is fixedly connected with the girder of the travelling mechanism on one side and hinged with the girder of the travelling mechanism on the other side, so that the girder of the travelling mechanism on the side can swing up and down around the hinged point. The invention has simple structure, the whole vehicle directly transversely rides on the cleaning mirror surface, the stress is uniform, and the lifting and swinging are easier to control; the occupied space of the whole vehicle can be effectively reduced; the solar photovoltaic power generation field heliostat is suitable for different road surfaces and is beneficial to the passing of vehicles on the heliostat of a photovoltaic power generation field.

Description

Crossing type heliostat cleaning vehicle

Technical Field

The invention relates to heliostat cleaning equipment, in particular to a crossing type heliostat cleaning vehicle.

Background

The tower type solar thermal power generation adopts a large number of heliostats to gather sunlight on a heat absorber arranged on the top of the tower, and the fluid in the heat absorber is heated to drive a turbine to rotate so as to generate power. The cleanliness of the heliostat mirror surface is used as a direct scale factor of the energy projected onto the heat absorber, and is directly related to the economy of the whole power plant.

In the prior art, when a heliostat is cleaned, a cleaning vehicle is generally driven into a path of a heliostat field and then cleaned in a side cleaning manner, but the cleaning vehicle is only suitable for the heliostat with a small area, for the heliostat with a large area, in order to prevent the mirror surface of the heliostat from colliding with the ground when the mirror surface is in a vertical state, the height of a vertical column of the heliostat is generally increased, namely the mirror surface of the heliostat is in a higher position, at the moment, if the side cleaning manner is still adopted, a cleaning mechanism on the cleaning vehicle needs to be set too high, and because the width of the path in the heliostat field is smaller, the vehicle body of the cleaning vehicle is narrower, if the height of the cleaning vehicle is too high, the gravity center of the cleaning vehicle is unstable in the working process, and the damage of the heliostat is easily caused; most importantly: the cleaning vehicle has larger integral volume and more installation mechanisms, and once the ground is uneven, the tire is easy to walk and slip when not touching the ground, thereby causing serious safety accidents.

Disclosure of Invention

The invention aims to provide a crossing heliostat cleaning vehicle.

In order to achieve the purpose, the invention adopts the technical scheme that:

a crossing heliostat cleaning vehicle comprises traveling mechanisms positioned on two sides, a jacking mechanism connected between the traveling mechanisms and capable of lifting in the vertical direction, a rolling brush mechanism and a water spraying mechanism connected to the jacking mechanism, a driving mechanism for driving each mechanism to act, and a power source for providing power for the driving mechanism, wherein the traveling mechanisms comprise girders extending in the front-back direction of the cleaning vehicle and wheel assemblies connected to the bottoms of the girders, and a heliostat cleaning area is formed between the girders on the two sides; the rolling brush mechanism comprises a rolling brush bracket and a rolling brush connected to the rolling brush bracket; the water spraying mechanism comprises a nozzle and a liquid supply assembly for supplying liquid to the nozzle, the roller brush and the nozzle are located above the cleaning area, the jacking mechanism is fixedly connected with the girder of the travelling mechanism on one side and hinged with the girder of the travelling mechanism on the other side, so that the girder of the travelling mechanism on the side can swing in the up-and-down direction around the hinged point. The four tires can completely contact the ground no matter the condition of the ground, so that the tire is free from overhead slipping, and the whole vehicle can run more stably.

Preferably, the cleaning vehicle further comprises a wiper connected to the lifting mechanism and located above the cleaning area and behind the rolling brush.

Further preferably, the wiper blade comprises a plurality of rubber sheets, preferably three sheets.

Preferably, the cleaning vehicle further comprises a swing mechanism connected to the jacking mechanism, the swing mechanism comprises a front-back swing electric push rod and a left-right swing electric push rod, the front-back swing electric push rod drives the rolling brush to swing in the left side direction and the right side direction of the cleaning vehicle, the front-back swing electric push rod is connected with the middle of the rolling brush support, and the left-right swing electric push rod is connected with the side of the rolling brush support.

Further preferably, the driving mechanism includes a front-back swing driving motor connected to the front-back swing electric push rod, and a left-right swing driving motor connected to the left-right swing electric push rod.

Preferably, the wheel assembly comprises a driving wheel set, and the driving wheel set comprises a driving wheel axle connected to the bottom of the girder, a steering assembly connected to the driving wheel axle, and a driving wheel connected to the steering assembly; the wheel assembly can also comprise a driven wheel assembly, and the driven wheel assembly comprises a driven wheel bridge connected to the bottom of the girder and a driven wheel connected to the driven wheel bridge.

Further preferably, the driving wheel and the driven wheel are single tires or wide base tires and desert tires, and double tires can be combined.

Further preferably, the driving mechanism comprises a walking driving assembly, the walking driving assembly comprises a frequency converter connected with the power source, a walking motor connected with the frequency converter, and a walking reducer connected with the walking motor, and the walking reducer is connected with the driving wheel.

Further preferably, the steering assembly comprises a slewing reducer and a slewing bearing which are connected with the walking motor, and the slewing bearing is connected with the driving wheel.

Preferably, the jacking mechanism comprises a jacking bottom frame connected with the girders of the travelling mechanisms at two sides respectively, jacking electric push rods connected to each side of the jacking bottom frame, and a jacking top frame connected between the jacking electric push rods at two sides, wherein the rolling brush support and the nozzle are connected to the jacking top frame.

Further preferably, the driving mechanism comprises two jacking driving motors connected with the jacking electric push rods, the number of the jacking electric push rods on each side is two, the number of the jacking driving motors is two, and each jacking driving motor drives the number of the jacking electric push rods on one side simultaneously.

Preferably, the rolling brush is provided with a plurality of rows in the front-rear direction.

Preferably, the driving mechanism comprises a rolling brush driving assembly, the rolling brush driving assembly comprises a rolling brush motor and a rolling brush speed reducer connected with the rolling brush motor, and the rolling brush speed reducer is connected with the rolling brush through a synchronous belt.

Preferably, the liquid supply assembly comprises a water tank, a water pump, a filter and a control valve, wherein the control valve comprises a safety valve, a throttle valve, a suction port one-way valve and an electromagnetic ball valve.

Preferably, the nozzles are arranged in two rows along the front-back direction, the nozzles in the front row are positioned at the front part of the rolling brush, and the nozzles in the rear row are positioned at the rear part of the rolling brush.

Preferably, the washing vehicle further comprises a sensing assembly, wherein the sensing assembly comprises a first sensor arranged in front of and behind the rolling brush respectively, and a second sensor arranged in front of the first sensor in front of the rolling brush.

Preferably, the washing vehicle further comprises a control mechanism.

Preferably, the power source is a generator set or a diesel set.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages and effects:

the invention has simple structure, the whole vehicle directly transversely rides on the cleaning mirror surface, so that the stress of the cleaning vehicle is uniform, and the lifting and swinging of the cleaning vehicle are easier to control; the occupied space of the whole vehicle can be effectively reduced; the solar photovoltaic power generation field heliostat is suitable for different road surfaces and is beneficial to the passing of vehicles on the heliostat of a photovoltaic power generation field.

Drawings

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a top view of the present embodiment;

FIG. 3 is a side view of the present embodiment;

fig. 4 is a schematic diagram of the working state of the embodiment.

Wherein: 10. a girder; 11. a drive wheel axle; 12. a steering assembly; 13. a drive wheel; 14. a driven wheel axle; 15. a driven wheel; 20. jacking the underframe; 21. jacking the electric push rod; 22. jacking a top frame; 30. swinging the electric push rod back and forth; 31. swinging the electric push rod left and right; 32. a back-and-forth swing drive motor; 33. a left-right swinging drive motor; 40. a rolling brush support; 41. rolling and brushing; 50. a nozzle; 51. a water tank; 60. a first sensor; 61. a second sensor; 62. tentacle mechanical travel switch; 7. a wiper blade; 8. a generator set or a diesel engine set; 90. an electrical cabinet; 91. a cab; and O, a heliostat.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The crossing heliostat cleaning vehicle shown in fig. 1-3 comprises a traveling mechanism, a jacking mechanism, a swinging mechanism, a rolling brush mechanism, a water spraying mechanism, a driving mechanism, a sensing assembly, a power source and the like. Wherein:

a traveling mechanism: are respectively arranged on two sides and comprise girders 10 extending along the front and back directions of the cleaning vehicle and wheel components connected to the bottoms of the girders 10, and a heliostat cleaning area is formed between the girders 10 on the two sides. The wheel subassembly includes drive wheelset and driven wheelset, wherein: the driving wheel set comprises a driving wheel axle 11 connected to the bottom of the girder 10, a steering assembly 12 connected to the driving wheel axle 11, and a driving wheel 13 connected to the steering assembly 12. The driven wheel set comprises a driven wheel bridge 14 connected to the bottom of the girder 10 and a driven wheel 15 connected to the driven wheel bridge 14. The driving wheel 13 and the driven wheel 15 are wide machine tires and desert tires for double tire combining.

The driving mechanism comprises a walking driving assembly, the walking driving assembly comprises a frequency converter connected with a power source, a walking motor connected with the frequency converter and a walking reducer connected with the walking motor, and the walking reducer is connected with a driving wheel 13. The power source generates electricity, the running motor is controlled by the frequency converter to start, the running motor drives the running reducer to transmit, and drives the driving wheel 13 to drive and run forwards or backwards. The steering assembly comprises a slewing reducer connected with the traveling motor and a slewing bearing (a worm and gear slewing reducer), and the slewing bearing is connected with the driving wheel 13. The walking mode can be divided into: straight running, oblique running, splayed turning, swinging, transverse running, central rotation and the like.

A jacking mechanism: the connection is between running gear and can go up and down in vertical direction, climbing mechanism includes the jacking chassis 20 of being connected with both sides running gear's girder 10 respectively, the jacking electric putter 21 of connection on every side jacking chassis 20, the jacking roof-rack 22 of connection between both sides jacking electric putter 21, jacking chassis 20 and one side running gear's girder 1 fixed connection, with the articulated a of opposite side running gear's girder 10 for this side running gear's girder 1 can be around this pin joint swing in the upper and lower direction. Jacking chassis 20 is fixed with girder 1 on one side, and jacking chassis 20 is articulated with girder 1 on one side, and cooperation jacking roof-rack 22 forms portal three point support structure, and one side girder 1 can carry out the luffing motion, and then the tire can all contact ground, avoids the tire unsettled, makes whole car walking difficult slipping.

The actuating mechanism includes the jacking driving motor who is connected with jacking electric putter 21, and every side jacking electric putter 21 is provided with two, and jacking driving motor is provided with two, and every jacking driving motor drives two jacking electric putter 21 in one side simultaneously, forms pair electric putter. Of course, the electric push rod can be replaced by the oil cylinder push rod.

A swinging mechanism: the device comprises a front-back swing electric push rod 30 for driving a rolling brush 41 to swing in the front-back direction of a cleaning vehicle, and a left-right swing electric push rod 31 for driving the rolling brush to swing in the left-right side direction of the cleaning vehicle, wherein the front-back swing electric push rod 30 is connected with the middle part of a rolling brush support 40, the left-right swing electric push rod 31 is connected with the side part of the rolling brush support 40, and the angle formed by the rolling brush 41 and the ground is matched through front-back swing and left-right swing.

The driving mechanism comprises a front-back swing driving motor 32 connected with the front-back swing electric push rod 30 and a left-right swing driving motor 33 connected with the left-right swing electric push rod 31.

The rolling brush mechanism comprises: comprises a rolling brush bracket 40 connected with the jacking top frame 22 and a rolling brush 41 connected with the rolling brush bracket 40. The rolling brushes 41 are arranged in a plurality of rows in the front-back direction, in this embodiment, two rows are arranged in the front-back direction, and of course, each row of rolling brushes 41 may also be provided with an independent lifting mechanism for adjusting the left-right height of the rolling brushes 41.

The driving mechanism comprises a rolling brush driving assembly, the rolling brush driving assembly comprises a rolling brush motor and a rolling brush speed reducer connected with the rolling brush motor, and the rolling brush speed reducer is connected with the rolling brush 41 through a synchronous belt to drive the rolling brush to operate.

The water spraying mechanism: the automatic cleaning device comprises a nozzle 50 and a liquid supply assembly for supplying liquid to the nozzle 50, wherein the nozzle 50 is provided with two rows along the front-back direction, the front row of nozzles 50 is positioned at the front part of a rolling brush 41, the rear row of nozzles 50 is positioned at the rear part of the rolling brush 41, and the displacement of the front row of nozzles 50 is smaller than that of the rear row of nozzles 51. The liquid supply assembly comprises a water tank 51, a water pump, a filter and a control valve, wherein the control valve comprises a safety valve, a throttle valve, a suction port one-way valve and an electromagnetic ball valve, and the electromagnetic ball valve is arranged in front of each row of nozzles 50.

The sensing component: including setting up respectively at the anterior first sensor 60 of round brush 41 and rear portion, setting up at the anterior second sensor 61 that is located the anterior first sensor 60 of round brush 41, all can adopt distance sensor, first sensor 60 and climbing mechanism, swing mechanism, water spray mechanism are connected, second sensor 61 and climbing mechanism, swing mechanism are connected. Two first sensors 60 are arranged at the front part and the rear part respectively, and tentacle mechanical travel switches 62 are simultaneously arranged beside the first sensors 60, so that the mechanical sensing is prevented from being effective when the first sensors 60 are invalid, and the heliostat is ensured not to be broken; the second sensors 61 are also provided in two, at 1.5m in front of the first sensor 60.

The first sensor 60 is used for measuring the distance between the rolling brush 41 and the mirror surface, and the duplex jacking electric push rod 21 is lifted to control the contact length between the rolling brush and the mirror surface, so that the automatic control can be realized. Since the vehicle has an automatic running state, the second sensor 61 can be used to predict how long the rolling brush still has to start the cleaning operation, so that the rolling brush can be raised and lowered in advance.

Because the cleaned mirror surfaces are not continuous, and a vacant area is arranged in the middle, in order to save water, when the mirror surfaces are detected by the first sensor 60 at the front part, the electromagnetic ball valve closes the front-row nozzle 50, and the rear row continues to spray water; when the mirror surface is detected by the first sensor 60 at the rear, the electromagnetic ball valve closes the rear nozzle 50; after the forward first sensor 60 detects entry into the mirror, the front row of nozzles 50 is activated; the rear row of nozzles 50 is then opened after the rear first sensor 60 measures the entry into the mirror.

The cleaning vehicle further comprises a water scraping plate 7, and the water scraping plate 7 is connected to the jacking top frame 22 and is located above the cleaning area and behind the rolling brush 41. The wiper 7 wipes the surface of the heliostat off the contaminated water discharged from the nozzle 50 and passing through the roll brush 41, and also plays a role in cleaning the surface of the heliostat. The wiper blade 41 comprises a plurality of rubber sheets, preferably three, and worn out rubber sheets can be replaced periodically or at any time.

The power source is a generator set or a diesel engine set 8.

The wash cart also includes a control mechanism including an electrical cabinet 90 and control keys, all of which are disposed in the cab 91.

The generator set or diesel engine set 8, the water tank 51, the electrical cabinet 90 and the cab 91 are respectively arranged on the girders 1 at two sides.

The whole vehicle adopts a variable frequency motor with a disc brake, a brake resistor and a speed sensor.

As shown in fig. 4: the construction is as follows:

the cleaning vehicle enters a photovoltaic power generation site, the rolling brush 41 is lifted to the highest position through the jacking mechanism, and then the vehicle is moved to the position near the heliostat on the first surface through actions of straight movement, splayed steering, transverse movement, oblique movement and the like.

When the second sensor 61 finds the mirror surface, the second sensor 61 sends an instruction to predict the preset height of the jacking electric push rod 21, when the second sensor enters the first sensor 60 at the front part, the front-row nozzle 50 starts to spray water, and the rolling brush speed reduction motor is started to enable the rolling brush 41 to start to rotate; meanwhile, the first sensor 60 measures the distance from the rolling brush 41 to the heliostat, the central controller calculates the distance that the rolling brush 41 needs to move downwards, and the jacking mechanism and the swinging mechanism stop acting after sending instructions to move downwards and swing to proper positions through the jacking mechanism and the swinging mechanism.

The wash vehicle continues to travel forward and when the first sensor 60 at the rear finds a mirror surface, it sends a command to open the nozzles 50 at the rear row to begin spraying water.

At this point, the whole cleaning vehicle starts to continuously spray water and perform rolling sweeping operation.

After the first heliostat is presented by the first sensor 60 in the front, a command is issued to close the front row of nozzles 50; so as to save water resources.

And continuing to move forward, and after the first sensor 60 at the rear part has a first fixed day, the first sensor 60 sends a command to close the nozzle 50 at the rear row so as to save water resources.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A crossing heliostat cleaning vehicle comprises traveling mechanisms positioned on two sides, a jacking mechanism connected between the traveling mechanisms and capable of lifting in the vertical direction, a rolling brush mechanism and a water spraying mechanism connected to the jacking mechanism, a driving mechanism for driving each mechanism to act, and a power source for providing power for the driving mechanism, wherein the traveling mechanisms comprise girders extending in the front-back direction of the cleaning vehicle and wheel assemblies connected to the bottoms of the girders, and a heliostat cleaning area is formed between the girders on the two sides; the rolling brush mechanism comprises a rolling brush bracket and a rolling brush connected to the rolling brush bracket; the water spraying mechanism comprises a nozzle and a liquid supply assembly for supplying liquid to the nozzle, the rolling brush and the nozzle are positioned above the cleaning area, and the water spraying mechanism is characterized in that: the jacking mechanism is fixedly connected with the girder of the travelling mechanism on one side and hinged with the girder of the travelling mechanism on the other side, so that the girder of the travelling mechanism on the side can swing up and down around the hinged point.

2. A straddle-type heliostat washing vehicle of claim 1, wherein: the cleaning vehicle also comprises a water scraping plate which is connected to the jacking mechanism, positioned above the cleaning area and behind the rolling brush; the wiper blade comprises a plurality of layers of rubber plates.

3. A straddle-type heliostat washing vehicle of claim 1, wherein: the cleaning vehicle further comprises a swing mechanism connected to the jacking mechanism, the swing mechanism comprises a front-back swing electric push rod and a left-right swing electric push rod, the front-back swing electric push rod drives the roller brush to swing in the front-back direction of the cleaning vehicle, the left-right swing electric push rod drives the roller brush to swing in the left-right direction of the cleaning vehicle, the front-back swing electric push rod is connected with the middle of the roller brush support, and the left-right swing electric push rod is connected with the side of the roller brush support.

4. A straddle-type heliostat washing vehicle of claim 3, wherein: the driving mechanism comprises a front-back swing driving motor connected with the front-back swing electric push rod and a left-right swing driving motor connected with the left-right swing electric push rod.

5. A straddle-type heliostat washing vehicle of claim 1, wherein: the wheel assembly comprises a driving wheel set, and the driving wheel set comprises a driving wheel axle connected to the bottom of the girder, a steering assembly connected to the driving wheel axle, and a driving wheel connected to the steering assembly; the wheel assembly can also comprise a driven wheel assembly, and the driven wheel assembly comprises a driven wheel bridge connected to the bottom of the girder and a driven wheel connected to the driven wheel bridge.

6. A straddle-type heliostat washing vehicle of claim 5, wherein: the driving wheel and the driven wheel are single tires or wide base tires and desert tires and can be used for double-tire combination.

7. A straddle-type heliostat washing vehicle of claim 1, wherein: the jacking mechanism comprises a jacking bottom frame, jacking electric push rods and a jacking top frame, the jacking bottom frame is connected with the girder of the walking mechanism on two sides, the jacking electric push rods are connected on each side, the jacking top frame is connected between the jacking electric push rods on two sides, and the rolling brush support and the nozzle are connected on the jacking top frame.

8. A straddle-type heliostat washing vehicle of claim 7, wherein: the driving mechanism comprises two jacking driving motors connected with the jacking electric push rods, each jacking electric push rod is provided with two jacking driving motors, and each jacking driving motor drives one side of each jacking electric push rod simultaneously.

9. A straddle-type heliostat washing vehicle of claim 1, wherein: the washing vehicle further comprises a sensing assembly, wherein the sensing assembly comprises first sensors which are arranged at the front part and the rear part of the rolling brush respectively, and second sensors which are arranged at the front part of the first sensors and positioned at the front part of the rolling brush.

10. A straddle-type heliostat washing vehicle of claim 1, wherein: the cleaning vehicle further comprises a control mechanism.