CN114772320A - Automatic discharging hopper - Google Patents
Automatic discharging hopper Download PDFInfo
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- CN114772320A CN114772320A CN202210632207.5A CN202210632207A CN114772320A CN 114772320 A CN114772320 A CN 114772320A CN 202210632207 A CN202210632207 A CN 202210632207A CN 114772320 A CN114772320 A CN 114772320A
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- hopper
- truck
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- level detection
- height
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- 238000007599 discharging Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 137
- 238000001514 detection method Methods 0.000 claims abstract description 91
- 230000003287 optical effect Effects 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 17
- 238000007664 blowing Methods 0.000 claims description 6
- 239000013590 bulk material Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/04—Loading land vehicles
- B65G67/06—Feeding articles or materials from bunkers or tunnels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0233—Position of the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
- B65G2203/044—Optical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Loading Or Unloading Of Vehicles (AREA)
Abstract
The invention provides an automatic discharging hopper which comprises a bearing support, a material storage hopper, a first hopper material level detection assembly, a second hopper material level detection assembly and a truck in-place detection assembly. The material storage hopper is arranged on the bearing bracket, and a material receiving space is formed below the material storage hopper; the first hopper material level detection group is arranged on the inner wall of the material storage hopper, and generates a first hopper opening signal when the material level of the material storage hopper is higher than a first height; the second hopper material level detection assembly is arranged on the inner wall of the material storage hopper, and generates a first hopper closing signal when the material level of the material storage hopper is lower than a second height; the truck arrival position detection assembly is arranged on the bearing support, when the truck arrives at the material receiving space, the truck generates a second hopper opening signal, and when the truck leaves the material receiving space, the truck generates a second hopper closing signal; the first hopper material level detection assembly, the second hopper material level detection assembly and the vehicle in-place detection assembly are connected with the PLC through signals. Compared with the traditional manual discharging mode, the bulk cargo discharging device greatly improves the bulk cargo discharging efficiency.
Description
Technical Field
The invention relates to the field of cargo transportation, in particular to an automatic discharging hopper.
Background
In a port terminal, bulk cargo is generally unloaded by loading the bulk cargo into a hopper through a crane, and then the bulk cargo is discharged into a carriage of a truck through the hopper.
Before emptying, the material level in the hopper needs to be ensured to reach the preset emptying material level so as to ensure that the truck can be filled. In the emptying process, in order to prevent the crane from causing drop dust when the hopper is emptied, the hopper door is generally required to be closed in time before the hopper is emptied, and a certain amount of bulk cargo is kept in the hopper. In addition, in the emptying process, if the truck leaves the emptying position, the hopper door must be closed in time to prevent bulk cargo from scattering.
In order to ensure that the material level of the hopper meets the above-mentioned material-discharging starting requirement and material-discharging stopping requirement and prevent bulk cargo from spilling, the conventional method is to observe the material level of the hopper and the position of a truck in real time manually and then manually control the opening or closing of a hopper door according to the observation result. The efficiency of hopper discharging control is low through manual operation, and the requirement for large-batch discharging is difficult to meet.
Disclosure of Invention
In order to solve the technical problem, the invention provides a bus bar film pasting mechanism, which adopts the following technical scheme:
a hopper with an automatic discharging function comprises:
a load bearing support;
the material storage hopper is arranged on the bearing bracket, the bottom of the material storage hopper is provided with an electric control hopper door, and a material receiving space for accommodating a truck is formed below the material storage hopper;
the first hopper material level detection assembly is arranged on the inner wall of the material storage hopper and is positioned at a first height, and when the material level of the material storage hopper is higher than the first height, the first hopper material level detection assembly generates a first hopper opening signal;
the second hopper material level detection assembly is arranged on the inner wall of the material storage hopper and is positioned at a second height, the second height is lower than the first height, and when the material level of the material storage hopper is lower than the second height, the second hopper material level detection assembly generates a first hopper closing signal;
the truck in-place detection assembly is arranged on the bearing support and is positioned on the lateral side of the material receiving space, when the truck reaches the material receiving space, the truck in-place detection assembly generates a second bucket opening signal, and when the truck leaves the material receiving space, the truck in-place detection assembly generates a second bucket closing signal;
and the PLC controller is installed on the bearing support, and the first hopper material level detection assembly, the second hopper material level detection assembly, the truck in-place detection assembly and the electric control hopper door are in signal connection with the PLC controller.
In some embodiments, after receiving the second bucket opening signal and the first bucket opening signal, the PLC controller controls the electronically-controlled hopper door to open and start discharging; in the discharging process, when the PLC receives the second hopper closing signal or the first hopper closing signal, the PLC controls the electric control hopper door to close, and discharging is finished.
In some embodiments, the first hopper level detection assembly comprises a first optical transmitter and a first optical receiver disposed in pairs at a first height on an inner wall of the storage hopper, the first optical receiver emitting a first fight off signal when there is a blockage between the first optical transmitter and the first optical receiver by bulk cargo.
In some embodiments, the second hopper level detection assembly comprises a second light emitter and a second light receiver arranged in pairs at a second height on the inner wall of the storage hopper, the second light receiver emitting the first bucket closeout signal when there is no bulk material obstructing therebetween.
In some embodiments, the truck-in-position detection assembly comprises a first pressure sensing plate and a second pressure sensing plate disposed on the ground, wherein: the first pressure sensing plate is positioned at the front side of the material receiving space, the second pressure sensing plate is positioned at the rear side of the material receiving space, and the distance between the first pressure sensing plate and the second pressure sensing plate is matched with the distance between the front wheel and the rear wheel of the truck; after the front wheel and the rear wheel of the truck are respectively pressed on the first pressure sensing plate and the second pressure sensing plate, the in-place detection assembly generates a second bucket opening signal; after the front wheel and the rear wheel of the truck leave the first pressure sensing plate and the second pressure sensing plate respectively, the in-place detection assembly generates a second bucket closing signal.
In some embodiments, the automated emptying hopper further comprises a truck level detection assembly mounted on the load support and proximate to the electronically controlled hopper door, the truck level detection assembly generating a third close signal when the bulk cargo level in the truck bed exceeds a third height; the material level detection assembly of the truck is in signal connection with the PLC, and in the emptying process, when the PLC receives a third hopper closing signal, the PLC controls the electric control hopper door to be closed, and emptying is finished.
In some embodiments, the truck level detection assembly comprises a plurality of ultrasonic ranging detection devices mounted on the bearing bracket and located around the electrically controlled hopper door
Through setting up first hopper material level determine module and second hopper material level determine module, realized the automated inspection to the hopper material level, through setting up the freight train and detecting module that targets in place, then realized the automatic detection that targets in place to the freight train, the PLC controller is based on hopper material level testing result and the freight train and targets in place the testing result and implements the control to the hopper door to the automatic blowing of hopper has been realized. Compared with the traditional manual hopper discharging mode, the bulk cargo discharging method greatly improves the bulk cargo discharging efficiency.
Drawings
FIG. 1 is a schematic view of a hopper and truck of the present invention from one perspective;
FIG. 2 is a schematic view of the hopper and truck of the present invention from another perspective;
FIG. 3 is a schematic logic diagram of an automatic emptying system;
fig. 1 to 3 include: the device comprises a bearing support 1, a material storage hopper 2, a first hopper material level detection assembly 3, a second hopper material level detection assembly 4, a truck in-place detection assembly 5, a PLC (programmable logic controller) 6, a truck material level detection assembly 7, an electric control hopper door 21, a first pressure sensing plate 51 and a second pressure sensing plate 52.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The following provides an exemplary description of the cell string welding device and the cell string welding method provided by the present invention, respectively, by way of examples.
The manual feeding control efficiency of the hopper is low, and the requirement for large-batch discharging is difficult to meet. In view of this, the invention provides an automatic discharging hopper, which realizes automatic discharging control of the hopper and greatly improves the discharging efficiency of bulk cargoes.
As shown in fig. 1 to 3, the automatic emptying hopper provided in the embodiment of the present invention includes a carrying bracket 1, a material storage hopper 2, a first hopper material level detection assembly 3, a second hopper material level detection assembly 4, a truck in-place detection assembly 5, and a PLC controller 6. Wherein:
the material storage hopper 2 is arranged on the bearing support 1, an electric control hopper door 21 is arranged at the bottom of the material storage hopper 2, and a material receiving space for accommodating a truck is formed below the material storage hopper 2.
Optionally, the bearing bracket 1 is a supporting frame structure formed by welding a plurality of section steels, and can bear a large weight. The material storage hopper 2 is used for storing bulk cargos transported by the crane, and optionally, the material storage hopper 2 is a funnel-shaped container made of stainless steel materials. The bottom of storage hopper 2 sets up automatically controlled hopper door 21, and the distance of automatically controlled hopper door 21 distance ground is greater than the height of truck, and after the truck got into to connecing the material space completely, automatically controlled hopper door 21 was located the top in truck carriage, opened automatically controlled hopper door 21, can implement the blowing to the truck.
First hopper material level determine module 3 installs at the inner wall of material storage hopper 2 and is located first height department, and when the material level of material storage hopper 2 was higher than first height, first hopper material level determine module 2 produced first fighting of opening signal.
The specific numerical value of the first height can be set according to actual needs, so that the emptying condition can be met only when the bulk cargo in the storage hopper 2 is enough (such as a carriage of a full truck), the electric control hopper door 21 can be opened, and the emptying of the truck reaching the receiving space is started. Otherwise, the electronically controlled hopper door 21 is kept closed, and the crane waits for the bulk cargo to be transported into the storage hopper 2.
And the second hopper material level detection assembly 4 is arranged on the inner wall of the material storage hopper 2 and is positioned at a second height, the second height is lower than the first height, and when the material level of the material storage hopper 2 is lower than the second height, the second hopper material level detection assembly 4 generates a first hopper closing signal.
Similarly, the concrete numerical value of second height can set up according to actual need to guarantee that blowing in-process material stock hopper 2 can not by totally vent, cause the drop height formula dust when preventing that the hoist is follow-up to the hopper shipment. In the discharging process, when the material level of the material storage hopper 2 is lower than the second height, the second hopper material level detection component 4 sends out a first hopper closing signal, so that the material storage hopper 2 is triggered to stop discharging,
the truck in-place detection assembly 5 is mounted on the bearing support 1 and located on the side of the material receiving space, when the truck reaches the material receiving space, the truck in-place detection assembly 5 generates a second hopper opening signal, and when the truck leaves the material receiving space, the truck in-place detection assembly 5 generates a second hopper closing signal.
That is, by providing the truck-in-place detecting assembly 5, it is possible to ensure that: only when the truck is in the material receiving space, the material can be discharged. When the truck leaves the material receiving space, the emptying can be stopped in time.
The PLC controller 6 is installed on the bearing support 1, and the first hopper material level detection assembly 3, the second hopper material level detection assembly 4, the truck in-place detection assembly 5 and the electric control hopper door 21 are in signal connection with the PLC controller. The PLC 6 controls the electric control hopper door 21 based on hopper opening and closing signals transmitted by the first hopper material level detection assembly 3, the second hopper material level detection assembly 4 and the truck in-place detection assembly 5, and automatic discharging is finally achieved. Specifically, the method comprises the following steps:
and when the PLC controller 6 receives a second bucket opening signal sent by the truck in-place detection assembly 5 and a first bucket opening signal sent by the first hopper material level detection assembly 3, the PLC controller controls the electric control hopper door 21 to open and starts to discharge materials.
Namely: at least two conditions need to be met to initiate the emptying operation, first, the bulk cargo in the storage hopper 2 is sufficiently large (e.g. can fill the compartment of a truck); secondly, the truck is positioned in the material receiving space.
In the emptying process, when the PLC 6 receives a second bucket closing signal sent by the truck in-place detection assembly 5 or a first bucket closing signal sent by the second hopper material level detection assembly 4, the PLC controls the electric control hopper door 21 to close, and emptying is finished.
Namely, in the emptying process, when the truck leaves the material receiving space, the PLC 6 controls the material storage hopper 2 to stop emptying, so that bulk cargo is prevented from falling to the ground. In addition, when stock hopper 2 will be emptied soon, PLC controller 6 also can control stock hopper 2 and stop the blowing, prevents that stock hopper 2 from emptying completely, leads to the follow-up dust of causing the drop height formula when loading goods to the hopper of hoist.
With continued reference to fig. 1, optionally, the first hopper level detection assembly 3 and the second hopper level detection assembly 4 both employ infrared photoelectric detection assemblies. Specifically, the method comprises the following steps:
the first hopper level detection assembly 3 comprises a first optical transmitter and a first optical receiver arranged in pairs at a first height on the inner wall of the storage hopper. When there is no shelter between the first optical transmitter and the first optical receiver, that is, the material level in the material storage hopper 2 does not exceed the first height, the first optical receiver can receive the infrared light emitted by the first optical transmitter at this time, and the first optical receiver outputs a high level signal. When the first light emitter and the first light receiver are shielded by bulk cargo, namely the material level in the material storage hopper 2 exceeds the first height, the first light receiver cannot receive infrared light emitted by the first light emitter, the first light receiver outputs a low-level signal at the moment, and the low-level signal can be used as a first fighting opening signal to be provided for the PLC 6.
The second hopper level detection assembly 4 comprises a second optical transmitter and a second optical receiver arranged in pairs at a second height on the inner wall of the storage hopper. When the second optical transmitter and the second optical receiver are shielded by bulk cargo, namely, the material level in the material storage hopper 2 exceeds the second height, at the moment, the second optical receiver cannot receive the infrared light emitted by the second optical transmitter, and the second optical receiver outputs a low-level signal. And when there is no shelter between the second optical transmitter and the second optical receiver, namely the material level in the material storage hopper 2 is lower than the second height, at this moment, the second optical receiver can receive the infrared light emitted by the second optical transmitter, the second optical receiver outputs a high level signal, and the high level signal can be used as a first bucket closing signal to be provided for the PLC 6.
As shown in fig. 2, optionally, the truck-in-place detecting assembly 5 comprises a first pressure sensing plate 51 and a second pressure sensing plate 52 disposed on the ground, wherein: first pressure sensing board 51 is located and connects the front side in material space, and second pressure sensing board 52 is located and connects the rear side in material space, all is provided with pressure sensor on first pressure sensing board 51 and the second pressure sensing board 52. In particular, the distance between the first pressure sensing plate 51 and the second pressure sensing plate 52 matches the distance between the front and rear wheels of the truck, and the installation positions of the first pressure sensing plate 51 and the second pressure sensing plate 52 can be adjusted for trucks of different models.
As shown in fig. 2, when the front wheel and the rear wheel of the truck are pressed on the first pressure sensing plate 51 and the second pressure sensing plate 52, respectively, the first pressure sensing plate 51 and the second pressure sensing plate 52 both output a high level after being pressed, and the high level can be provided to the PLC controller 6 as a second fighting signal.
And after the front wheel and the rear wheel of freight train leave first pressure tablet 51, second pressure tablet 52 respectively, all export a low level after first pressure tablet 51, second pressure tablet 52 lose pressure, and this low level can be offered PLC controller 6 as second close fill signal.
Certainly, the truck in-place detection assembly 5 can also adopt other implementation manners, for example, the truck in-place detection assembly 5 includes a plurality of infrared photoelectric detection assemblies which are arranged on the bearing support 1 and located on the periphery of the material receiving space, and when the truck is located at the material receiving space, light paths of the infrared photoelectric detection assemblies are shielded, so as to generate a second bucket opening signal. And when the freight train leaves and connects the material space, these infrared photoelectric detection subassembly's light path is all not sheltered from to generate the second and close fill signal.
Because the carriage volumes of trucks of different vehicle types are different, in the emptying process, when the carriage is about to be filled, the emptying needs to be stopped in time so as to prevent bulk cargoes from overflowing the carriage. In view of this, optionally, the automatic emptying hopper in the embodiment of the present invention further includes a truck level detection assembly 7, the truck level detection assembly 7 is installed on the carrying bracket 1 and is close to the electronically controlled hopper door 21, and the truck level detection assembly 7 is in signal connection with the PLC controller 6. Freight train material level detection subassembly 7 is used for implementing the automated inspection to the carriage material level of freight train, and is specific:
in the emptying process, when the material level in the boxcar is higher than the third height, the boxcar material level detection assembly 7 generates a third bucket closing signal and sends the third bucket closing signal to the PLC 6. And after receiving the third hopper closing signal, the PLC 6 immediately controls the material storage hopper to stop discharging, so that bulk cargo is prevented from overflowing the carriage.
Optionally, the truck material level detection assembly 7 includes a plurality of (e.g. four) ultrasonic ranging detection devices installed on the load-bearing support 1 and located around the electrically controlled hopper door 21, each ultrasonic ranging detection device is used to obtain the distance from the installation position to the material pile 100 in the carriage, and the distance measured by each ultrasonic ranging detection device can calculate the material level in the carriage.
It should be noted that the implementation of the level detection in the container by means of the ultrasonic distance measuring and detecting device is well known to those skilled in the art and is not an object of the present invention, so that the detailed technical principle and calculation process thereof will not be described in detail in the present specification.
The invention has been described above with a certain degree of particularity. It will be understood by those of ordinary skill in the art that the descriptions of the embodiments are merely exemplary and that all changes and modifications made without departing from the true spirit and scope of the present invention shall fall within the protective scope of the present invention. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.
Claims (7)
1. The utility model provides an automatic blowing hopper which characterized in that, automatic blowing hopper includes:
a load bearing support;
the material storage hopper is arranged on the bearing bracket, an electric control hopper door is arranged at the bottom of the material storage hopper, and a material receiving space for accommodating a truck is formed below the material storage hopper;
the first hopper material level detection assembly is arranged on the inner wall of the material storage hopper and is positioned at a first height, and when the material level of the material storage hopper is higher than the first height, the first hopper material level detection assembly generates a first hopper opening signal;
the second hopper material level detection assembly is arranged on the inner wall of the material storage hopper and is positioned at a second height, the second height is lower than the first height, and when the material level of the material storage hopper is lower than the second height, the second hopper material level detection assembly generates a first hopper closing signal;
the truck in-place detection assembly is arranged on the bearing support and is positioned on the side of the material receiving space, when the truck reaches the material receiving space, the truck in-place detection assembly generates a second hopper opening signal, and when the truck leaves the material receiving space, the truck in-place detection assembly generates a second hopper closing signal;
the first hopper material level detection assembly, the second hopper material level detection assembly, the truck in-place detection assembly and the electric control hopper door are connected with the PLC through signals.
2. The automatic emptying hopper according to claim 1, wherein:
after receiving the second bucket opening signal and the first bucket opening signal, the PLC controller controls the electric control hopper door to open and starts to discharge;
in the discharging process, when the PLC receives the second closing signal or the first closing signal, the PLC controls the electric control hopper door to close, and discharging is finished.
3. The automated storage hopper of claim 1, wherein said first hopper level sensing assembly comprises a first optical transmitter and a first optical receiver arranged in pairs at a first height on an inner wall of said storage hopper, said first optical receiver emitting said first opening signal when a gap between said first optical transmitter and said first optical receiver is obstructed by bulk material.
4. The automated emptying hopper of claim 1, wherein the second hopper level detection assembly comprises a second optical transmitter and a second optical receiver arranged in pairs at a second height on the interior wall of the storage hopper, the second optical receiver emitting the first bucket closure signal when there is no bulk material obstructing there between.
5. The automatic emptying hopper of claim 1, wherein the truck-in-position detection assembly comprises a first pressure sensing plate and a second pressure sensing plate disposed on the ground, wherein:
the first pressure sensing plate is positioned on the front side of the material receiving space, the second pressure sensing plate is positioned on the rear side of the material receiving space, and the distance between the first pressure sensing plate and the second pressure sensing plate is matched with the distance between the front wheel and the rear wheel of the truck;
after the front wheel and the rear wheel of the truck are respectively pressed on the first pressure sensing plate and the second pressure sensing plate, the in-place detection assembly generates a second bucket opening signal;
after the front wheel and the rear wheel of the truck leave the first pressure sensing plate and the second pressure sensing plate respectively, the in-place detection assembly generates a second bucket closing signal.
6. The automatic emptying hopper according to claim 2, further comprising:
the truck level detection assembly is arranged on the bearing bracket and close to the electric control hopper door, and generates a third hopper closing signal when the height of bulk cargo in a truck compartment exceeds a third height;
the material level detection assembly of the truck is in signal connection with the PLC, and in the emptying process, when the PLC receives the third hopper closing signal, the PLC controls the electric control hopper door to close, and emptying is finished.
7. The automatic emptying hopper as claimed in claim 6, wherein the truck level detection assembly comprises a plurality of ultrasonic ranging detection devices mounted on the load-bearing support and located around the door of the electronically controlled hopper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210632207.5A CN114772320A (en) | 2022-06-07 | 2022-06-07 | Automatic discharging hopper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210632207.5A CN114772320A (en) | 2022-06-07 | 2022-06-07 | Automatic discharging hopper |
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| CN114772320A true CN114772320A (en) | 2022-07-22 |
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| CN202210632207.5A Pending CN114772320A (en) | 2022-06-07 | 2022-06-07 | Automatic discharging hopper |
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