1. The automatic sludge cleaning device at the bottom of the truck scale platform is characterized by comprising an inlet detection grating (3), an outlet detection grating (4) and two sludge conveying devices (2) which are in communication connection with a control system, wherein the inlet detection grating (3) is arranged at the front end of an inlet of the truck scale platform (1) and is used for detecting that a vehicle enters the truck scale platform (1), the outlet detection grating (4) is arranged at the rear end of an outlet of the truck scale platform (1) and is used for detecting that the vehicle leaves the truck scale platform (1), the two sludge conveying devices (2) are respectively arranged below gaps (5) of the inlet and the outlet of the truck scale platform (1), the sludge conveying devices (2) comprise a sludge conveying belt (10) and a first driving motor for driving the sludge conveying belt (10) to move, the length and the width of the sludge conveying belt (10) are both greater than those of the gaps (5) of the inlet and the outlet of the truck scale platform (1), the sludge conveying belt (10) is provided with a plurality of end-to-end baffles (11).

2. The automatic cleaning device for sludge at the bottom of the automobile weighing platform according to claim 1, characterized in that two transfer conveyors (6) are arranged outside the automobile weighing platform (1), the transfer conveyors (6) are driven by a second driving motor, the second driving motor is in communication connection with a control system, and the two transfer conveyors (6) are respectively arranged below the output ends of the two sludge conveying belts (10).

3. The automatic cleaning device for the sludge at the bottom of the automobile weighing platform according to claim 2, characterized in that two transfer conveyors (6) are arranged at the same side, and the output ends of the two transfer conveyors (6) are provided with stacking hoppers (7).

4. The automatic cleaning device for sludge at the bottom of the weighing platform of the automobile scale as claimed in claim 2, wherein the inlet detection grating (3), the outlet detection grating (4), the first driving motor, the second driving motor and the control system are all powered by photovoltaic energy storage batteries.

5. The automatic cleaning device for the sludge at the bottom of the automobile weighing platform according to claim 3, characterized in that a scraper (14) is arranged between the output end of the sludge conveying belt (10) and the transferring conveying device (6), and the scraper (14) is close to the baffle (11) of the sludge conveying belt (10).

6. The automatic cleaning device for the sludge at the bottom of the automobile weighing scale platform according to claim 5, wherein water filtering side plates (15) are arranged on two sides of the baffle plate (11), the water filtering side plates (15) are provided with a plurality of water discharging through holes, and filter screens are arranged on the inner walls of the water filtering side plates (15).

7. The automatic sludge cleaning device at the bottom of the truck scale platform of claim 6, wherein a drain plate (13) is arranged between the two rollers (12) of the sludge conveying belt (10), the width of the drain plate (13) is larger than that of the baffle plate (11), and both sides of the drain plate (13) are provided with drain channels (16).

8. The automatic sludge cleaning device at the bottom of the weighing platform of the automobile scale according to claim 7, characterized in that the sludge conveying belt (10) is arranged obliquely, and the included angle of the sludge conveying belt (10) and the horizontal plane is less than or equal to 10 degrees.

9. A use method of an automatic sludge cleaning device at the bottom of an automobile weighing platform is suitable for the automatic sludge cleaning device at the bottom of the automobile weighing platform according to claim 8, and is characterized in that when a vehicle needing weighing enters the automobile weighing platform (1), an inlet detection grating (3) positioned at the inlet of the automobile weighing platform (1) detects that the vehicle enters and feeds information back to a control system, and when the vehicle needing weighing leaves the automobile weighing platform (1), an outlet detection grating (4) positioned at the outlet of the automobile weighing platform (1) detects that the vehicle completely leaves and feeds information back to the control system;

when the control system receives information of vehicle entering, the first driving motor and the second driving motor are controlled to stop, and in the process that the vehicle passes through the truck scale platform (1), sludge on the vehicle falls onto a baffle (11) of a sludge conveying belt (10) through gaps (5) at the front end and the rear end of the truck scale platform (1);

when the control system receives information that the vehicle completely leaves, the first driving motor and the second driving motor are controlled to start, the first driving motor drives the sludge conveying belt (10) to rotate, sludge on the baffle (11) is conveyed to the outer side of the truck scale platform (1), under the action of gravity and the action of the scraper (14), the sludge falls onto the transfer conveying device (6), and the second driving motor drives the transfer conveying device (6) to convey the sludge to the stacking hopper (7) for uniform treatment.

10. The use method of claim 9 is characterized in that in rainy days, rainwater falls onto the baffle (11) together with sludge, the filter screen on the inner wall of the water filtering side plate (15) plays a role in filtering, the rainwater flows out onto the drainage plate (13) through the filter screen and the drainage through holes and is drained out of the automobile weighing platform (1) through the drainage channel (16), and the sludge is left on the baffle (11) and moves forwards along with the baffle (11).

Background

Truck scales, also known as loaders, are commonly used to weigh the tons of a truck and are the primary weighing devices used for bulk cargo metering. When the truck scale platform is arranged, an upper ramp and a lower ramp are generally arranged in front of and behind the truck scale platform respectively, so that a vehicle can conveniently enter and leave the truck scale platform. But truck scale platform live time is longer, in the position below in space, can deposit gradually in the bottom of truck scale platform has mud, needs artifical clearance, if fail in time to clear up, mud can withstand the stabilizer blade of truck scale platform, leads to the truck scale platform measured data to appear the deviation, directly influences the trade settlement. In addition, the long-term existence of sludge can cause the erosion to sensor or weighing platform bottom, causes the sensor to damage, can corrode the weighing platform structure seriously, has the potential safety hazard. Present generally is artifical clearance, because weighing platform bottom is low excessively, general shovel or instrument are because the inconvenient clearance of position restriction even wash with the water gun, also can often wash unclean and lead to mud to attach on weighing platform or sensor, and the time has been of a specified duration and also can cause harmful effects.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic cleaning device for sludge at the bottom of a weighing platform of an automobile weighing machine and a using method thereof, which effectively solve the problem that sludge is deposited at the bottom of the weighing platform.

The technical purpose of the invention is realized by the following technical scheme:

the automatic sludge cleaning device comprises an inlet detection grating, an outlet detection grating and two sludge conveying devices, wherein the inlet detection grating, the outlet detection grating and the two sludge conveying devices are all in communication connection with a control system, the inlet detection grating is arranged at the front end of an inlet of the truck scale and used for detecting that a vehicle enters the truck scale, the outlet detection grating is arranged at the rear end of an outlet of the truck scale and used for detecting that the vehicle leaves the truck scale, the two sludge conveying devices are respectively arranged below gaps of the inlet and the outlet of the truck scale, each sludge conveying device comprises a sludge conveying belt and a first driving motor for driving the sludge conveying belts to move, the length and the width of each sludge conveying belt are larger than those of the gaps of the inlet and the outlet of the truck scale, and each sludge conveying belt is provided with a plurality of baffles which are connected end to end. The baffle plate is used for receiving sludge and preventing the sludge from falling to the bottom of the truck scale platform, the baffle plates connected end to end effectively receive all the sludge falling from the gap, then the sludge is conveyed out of the truck scale platform through the sludge conveying belt, and the sludge is poured out at the output end of the sludge conveying belt.

In one embodiment, two transfer conveying devices are arranged outside the weighing platform of the automobile, the transfer conveying devices are driven by a second driving motor, the second driving motor is in communication connection with the control system, and the two transfer conveying devices are respectively arranged below the output ends of the two sludge conveying belts. In order to prevent the sludge from accumulating outside the weighing platform of the automobile, the sludge is further transported to other positions by a transfer conveying device to be uniformly collected.

In one embodiment, the two transfer conveying devices are arranged on the same side, and the output ends of the two transfer conveying devices are provided with stacking hoppers.

In one embodiment, the inlet detection grating, the outlet detection grating, the first driving motor, the second driving motor and the control system are all powered by photovoltaic energy storage batteries. During daytime, the automobile weighing platform runs, and the photovoltaic energy storage battery converts sunlight into electric energy for storage or use.

In one embodiment, a scraper is arranged between the output end of the sludge conveyor belt and the transfer conveyor, and the scraper is close to the baffle of the sludge conveyor belt. Mud can adhere to on the baffle, in order to prevent that mud from being detained on the baffle to along with the motion of mud conveyer belt reachs the bottom of truck scale platform, set up the scraper blade at the output of mud conveyer belt, when the baffle is invertd, need pass through the scraper blade earlier, the scraper blade is scraped residual mud on with the baffle and is gone up to the transportation conveyer belt.

In one embodiment, two sides of the baffle are provided with water filtering side plates, the water filtering side plates are provided with a plurality of water drainage through holes, and the inner walls of the water filtering side plates are provided with filter screens. When the rain or the automobile drips, water is mixed with silt and flows to the baffle of the sludge conveying belt through the gap, the silt is separated and left on the baffle, and rainwater or sewage flows out through the drainage through holes.

In one embodiment, a drainage plate is arranged between the two rollers of the sludge conveying belt, the width of the drainage plate is larger than that of the baffle, and drainage channels are arranged on two sides of the drainage plate. The water discharged from the baffle is received by the drainage plate, flows to the drainage channels on both sides of the drainage plate and is discharged out of the weighing platform of the automobile.

In one embodiment, the sludge conveyor belt is obliquely arranged, and the included angle between the sludge conveyor belt and the horizontal plane is less than or equal to 10 degrees.

A using method of an automatic sludge cleaning device at the bottom of an automobile weighing platform, which comprises the following steps,

when a vehicle needing weighing enters the automobile weighing platform, an inlet detection grating positioned at the inlet of the automobile weighing platform detects that the vehicle enters and feeds information back to the control system, and when the vehicle needing weighing leaves the automobile weighing platform, an outlet detection grating positioned at the outlet of the automobile weighing platform detects that the vehicle completely leaves and feeds information back to the control system;

when the control system receives information that a vehicle enters, the first driving motor and the second driving motor are controlled to stop, and in the process that the vehicle passes through the truck scale platform, sludge on the vehicle falls onto the baffle of the sludge conveying belt through gaps at the front end and the rear end of the truck scale platform;

when control system received the information that the vehicle left completely, control first driving motor and second driving motor start, and first driving motor orders about the mud conveyer belt and rotates, transports the mud on the baffle to the truck scale platform outside, and under the effect of gravity and scraper blade, mud drops to transporting conveyer on, and second driving motor drives transports conveyer and transports mud to stacking and fight department unified processing.

In one embodiment, in rainy days, rainwater is mixed with sludge and falls onto the baffle, the filter screen on the inner wall of the water filtering side plate plays a role in filtering, the rainwater flows onto the drainage plate through the filter screen and the drainage through holes and is discharged out of the automobile weighing scale platform through the drainage channel, and the sludge is remained on the baffle and moves forwards along with the baffle.

In conclusion, the invention has the following beneficial effects:

the sludge conveyor belt is arranged below the gap at the front end and the rear end of the automobile weighing platform, silt can not fall to the bottom of the weighing platform but directly fall onto the sludge conveyor belt in the process that a vehicle passes through the automobile weighing platform, the sludge conveyor belt conveys sludge to the outer side of the weighing platform, the sludge conveyor belt is convenient to clean, in addition, the sludge conveyor belt also has the function of blocking sewage or rainwater, the condition of water accumulation below the weighing platform is effectively prevented, the service life of the automobile weighing platform is effectively prolonged, and the cleaning and maintenance times of the weighing platform are reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the position relationship between the sludge conveyer belt and the transfer conveyer according to the present invention;

FIG. 3 is a cross-sectional view of the sludge conveyor of the present invention.

In the figure, 1-a truck scale platform, 2-a sludge conveying device, 3-an inlet detection grating, 4-an outlet detection grating, 5-a gap, 6-a transfer conveying device, 7-a stacking hopper, 8-an upper ramp, 9-a lower ramp, 10-a sludge conveying belt, 11-a baffle, 12-a roller, 13-a drainage plate, 14-a scraper, 15-a water filtering side plate and 16-a drainage channel.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.

The invention provides an automatic cleaning device for sludge at the bottom of a truck scale platform 1, which comprises an inlet detection grating 3, an outlet detection grating 4 and two sludge conveying devices 2, wherein the inlet detection grating 3 is arranged at the front end of an inlet of the truck scale platform 1 and is used for detecting that a vehicle enters the truck scale platform 1, the outlet detection grating 4 is arranged at the rear end of an outlet of the truck scale platform 1 and is used for detecting that the vehicle leaves the truck scale platform 1, the two sludge conveying devices 2 are respectively arranged below the gap 5 at the inlet and the outlet of the truck scale platform 1, and the sludge conveying devices 2 comprise sludge conveying belts 10 and first driving motors for driving the sludge conveying belts 10 to move, the length and the width of the sludge conveying belt 10 are both larger than those of a gap 5 between an inlet and an outlet of the automobile weighing platform 1, and the sludge conveying belt 10 is provided with a plurality of baffles 11 which are connected end to end.

Wherein the control device is a conventional PLC controller, such as a Siemens S7-400 programmable logic controller, and the entrance detection grating 3 and the exit detection grating 4 are conventional infrared detection sensors, such as a KTR-GP2D12 infrared distance measurement sensor.

The baffle 11 is used for receiving sludge and preventing the sludge from falling to the bottom of the truck scale platform 1, the baffle 11 connected end to end effectively receives all the sludge falling from the gap 5, and then the sludge is conveyed out of the truck scale platform 1 through the sludge conveying belt 10 and poured out at the output end of the sludge conveying belt 10.

Further, the truck scale platform 1 outside is provided with two and transports conveyer 6, transport conveyer 6 and be driven by second driving motor, second driving motor is connected with the control system communication, two transport conveyer 6 sets up respectively in the output below of two sludge conveyer belts 10. In order to prevent the sludge from accumulating outside the truck scale platform 1, the sludge is further transported to other positions by the transfer conveying device 6 to be uniformly collected.

Further, two transport conveyer 6 homonymy, and two transport conveyer 6's output is provided with and stacks fill 7.

Further, the inlet detection grating 3, the outlet detection grating 4, the first driving motor, the second driving motor and the control system are all powered by photovoltaic energy storage batteries. During daytime, the truck scale platform 1 runs, and the photovoltaic energy storage battery converts sunlight into electric energy for storage or use.

Further, as shown in fig. 2, a scraper 14 is arranged between the output end of the sludge conveyor belt 10 and the transfer conveyor 6, and the scraper 14 is close to the baffle 11 of the sludge conveyor belt 10. Sludge may be adhered to the baffle 11, and in order to prevent the sludge from being retained on the baffle 11 and reaching the bottom of the weighing platform 1 of the automobile along with the movement of the sludge conveyor belt 10, a scraper 14 is arranged at the output end of the sludge conveyor belt 10, when the baffle 11 is inverted, the scraper 14 needs to pass through the scraper 14, and the scraper 14 scrapes the sludge remained on the baffle 11 down to the transfer conveyor belt.

Further, as shown in fig. 3, water filtering side plates 15 are arranged on two sides of the baffle plate 11, the water filtering side plates 15 are provided with a plurality of water discharging through holes, and a filter screen is arranged on the inner wall of each water filtering side plate 15. When the automobile drips in rainy days or, water is mixed with silt and flows to the baffle 11 of the sludge conveying belt 10 through the gap 5, the silt is separated and left on the baffle 11, and rainwater or sewage flows out through the drainage through holes.

Further, as shown in fig. 2 and 3, a drainage plate 13 is arranged between the two rollers 12 of the sludge conveyor belt 10, the width of the drainage plate 13 is greater than that of the baffle 11, and drainage channels 16 are arranged on both sides of the drainage plate 13. The water discharged from the baffle 11 is received by the drain plate 13, flows to the drain passages 16 on both sides of the drain plate 13 and then is discharged out of the weighing platform 1, and it is expected that the accumulated water at the bottom of the weighing platform 1 is hard to evaporate, and the drain plate 13 effectively prevents rainwater or sewage from infiltrating into the bottom of the weighing platform 1.

Further, the sludge conveying belt 10 is obliquely arranged, and an included angle between the sludge conveying belt 10 and the horizontal plane is smaller than or equal to 10 degrees.

The invention also provides a use method of the automatic cleaning device for sludge at the bottom of the automobile weighing platform, which comprises the following steps:

when a vehicle needing weighing enters the automobile weighing platform 1, the entrance detection grating 3 positioned at the entrance of the automobile weighing platform 1, namely the entrance of the upper ramp 8, detects that the vehicle enters and feeds back information to the control system, and after the vehicle needing weighing leaves the automobile weighing platform 1, the exit detection grating 4 positioned at the exit of the automobile weighing platform 1, namely the exit of the lower ramp 9, detects that the vehicle completely leaves and feeds back information to the control system;

when the control system receives information that a vehicle enters, the first driving motor and the second driving motor are controlled to stop, and in the process that the vehicle passes through the truck scale platform 1, sludge on the vehicle falls onto the baffle 11 of the sludge conveying belt 10 through gaps 5 at the front end and the rear end of the truck scale platform 1;

when the control system receives the information that the vehicle completely leaves, the first driving motor and the second driving motor are controlled to be started, the first driving motor drives the sludge conveying belt 10 to rotate, sludge on the baffle plate 11 is conveyed to the outer side of the automobile weighing platform 1, the sludge falls onto the transferring and conveying device 6 under the action of gravity and the action of the scraper 14, and the second driving motor drives the transferring and conveying device 6 to convey the sludge to the stacking hopper 7 for uniform treatment.

In rainy days, rainwater is mixed with sludge and falls into the baffle 11, the filter screen on the inner wall of the water filtering side plate 15 plays a role in filtering, rainwater flows out to the drainage plate 13 through the filter screen and the drainage through holes and is discharged out of the truck scale platform 1 through the drainage channel 16, and the sludge is left on the baffle 11 and moves forwards along with the baffle 11.

It can be understood that when the weighing platform 1 of the truck scale is stopped, the invention can still play a role, when the surface of the weighing platform 1 of the truck scale is cleaned, dust and sundries can be swept to the position of the gap 5, so that the dust and sundries fall onto the baffle 11, and then the first driving motor and the second driving motor are started through the control system, so that the dust and sundries are conveyed to the stacking hopper 7 to be uniformly collected;

even if the truck scale platform 1 is washed, sewage flows to the baffle 11 along the gap 5, flows out to the drain bar 13 after being filtered by the filter screen, is discharged through the drainage channels 16 on two sides of the drain bar 13, then starts the first driving motor and the second driving motor, and conveys sludge to the stacking hopper 7 for uniform collection.

According to the invention, the sludge conveyor belt 10 is arranged below the gap 5 at the front end and the rear end of the weighing platform 1 of the automobile scale, silt can not fall to the bottom of the weighing platform but directly falls onto the sludge conveyor belt 10 in the process that a vehicle passes through the weighing platform 1 of the automobile scale, the sludge conveyor belt 10 conveys sludge to the outer side of the weighing platform, so that the sludge conveyor belt is convenient to clean, and in addition, the sludge conveyor belt 10 also has the function of blocking sewage or rainwater, so that the condition of water accumulation below the weighing platform is effectively prevented, the service life of the weighing platform 1 of the automobile scale is effectively prolonged, and the cleaning and maintenance times of the weighing platform are reduced.

It will be appreciated that when the weighing platform 1 comprises a plurality of platforms, there will still be gaps 5 between adjacent platforms, and the sludge transfer device 2 is arranged below each of these gaps 5, and sludge is transported out by the sludge transfer device 2. The main problem that faces in space 5 between the weighing platform is sewage or rainwater, because 5 width in space between the weighing platform is less, mud generally can not drop from space 5 between these weighing platforms, but sewage or rainwater can permeate the bottom of truck scale platform through these space 5, consequently all are provided with baffle 11 on sludge conveyor belt 10 of sludge conveying device 2 between the weighing platform, and the both sides of baffle 11 are provided with drainage curb plate 15, drainage curb plate 15 is provided with a plurality of drainage through-holes, the inner wall of drainage curb plate 15 is provided with the filter screen, and is provided with drain bar 13 between two rollers 12 of sludge conveyor belt 10.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures, and it is to be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both orientations of "above … …" and "below … …". The device may also be oriented 90 or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.