An automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a weighing pump

Abstract

The present application relates to the technical field of weighing equipment, and discloses an automatic weighing and slag discharging device for weighing the slag discharging amount of a pump-out slag system. The device includes a slag hopper, a controller, a weighing system, and a monitoring system. The weighing system and the monitoring system are both coupled to the controller. The slag hopper is lapped on the weighing system. The weighing system is used to weigh the slag hopper, and the monitoring system is used to monitor the capacity of the muck in the slag hopper. The present application has the effect of improving the measurement accuracy of the slag discharging amount of the pump-out slag system.

Description

Technical Field

[0001] The present application relates to the technical field of weighing equipment, and in particular to an automatic weighing and unloading slag device for weighing the slag discharge amount of a slag pumping and unloading system. Background Art

[0002] As a new type of slag removal technology for shield construction, the pumping slag removal system has been gradually promoted and applied due to its strong construction continuity, high efficiency, and good environment. In shield construction, the control of the amount of excavation is the most important link in the entire shield construction. It is the decisive factor for the heave and sinking of the surface and the basic guarantee for the safety of shield construction.

[0003] Different from the conventional slag discharge method, the pumping slag system transports the slag from the tunnel face to the ground collection pit through a pipeline; conventionally, a flow meter is installed on the pipeline to record the amount of excavated soil, but because there are three kinds of media, solid, liquid and gas, in the pipeline, the data recorded by the flow meter has a large error, and the amount of excavated soil cannot be accurately recorded, which will be unfavorable for the control of various parameters of shield construction, and the construction parameters cannot be adjusted dynamically in time, which will affect the construction safety to a certain extent. Summary of the invention

[0004] In order to accurately monitor the amount of soil discharged from a slag pumping system and improve the weighing accuracy, the present application provides an automatic weighing and unloading device for weighing the amount of slag discharged from a slag pumping system.

[0005] The present application provides an automatic weighing and unloading device for weighing the slag discharge amount of a pumping slag discharge system, which adopts the following technical solution:

[0006] An automatic weighing slag unloading device for weighing the slag discharge amount of a pumping slag discharge system comprises a slag bucket, a controller, a weighing system and a monitoring system, wherein the weighing system and the monitoring system are coupled to the controller, the slag bucket is overlapped on the weighing system, the weighing system is used to weigh the slag bucket, and the monitoring system is used to monitor the capacity of the slag in the slag bucket.

[0007] Furthermore, the weighing system includes a plurality of weighing sensors, the weighing sensors are coupled to a controller, and the slag bucket is placed on the plurality of weighing sensors.

[0008] Furthermore, the monitoring system includes a plurality of photoelectric sensors, a prime number of which are coupled to a controller, and the photoelectric sensors are installed on the top of the bucket and are used to monitor the capacity of the slag in the bucket.

[0009] Furthermore, a material turning device is provided in the hopper, and the material turning device comprises a partition plate and a material turning roller, the partition plate is fixed between a pair of opposite inner side walls of the hopper, and the partition plate divides the hopper into a first chamber and a second chamber of unequal volumes;

[0010] The tipping roller is rotatably arranged between a pair of opposite side walls of the slag hopper. The tipping roller is located below the partition plate, and the tipping roller divides the material discharge opening of the slag hopper into a first material discharge opening and a second material discharge opening with the same size.

[0011] Further, the tipping roller includes a rotating shaft and a plurality of tipping blades arranged on the rotating shaft. The plurality of tipping blades are divided into at least three groups, and the multiple groups of tipping blades are evenly distributed at equal angles along the circumferential direction of the rotating shaft. A plurality of through grooves for the tipping blades to pass through are formed in the lower part of the partition plate.

[0012] Further, a tipping door for blocking the material discharge opening and a driving member for driving the tipping door to rotate are arranged on the slag hopper.

[0013] Further, a retaining plate is arranged on the outer side wall of the slag hopper adjacent to the tipping door. The retaining plate is slidably connected to the slag hopper in the vertical direction. A transmission mechanism is arranged between the tipping door and the retaining plate. When the tipping door is opened, the retaining plate moves downward; when the tipping door is closed, the retaining plate moves upward.

[0014] Further, the transmission mechanism includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the tipping door, the other end of the first connecting rod is hinged to the second connecting rod, and the end of the second connecting rod far from the first connecting rod is hinged to the retaining plate.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. In the present application, the muck discharged by the pump-out muck system falls into the slag hopper, and the weighing system weighs the slag hopper and the muck in real time, so as to accurately record the muck output of the pump-out muck system and improve the weighing accuracy; when the monitoring system monitors that the muck in the slag hopper reaches the rated volume, the pump-out muck system stops discharging muck, and the weighing system inputs the weighing data into the controller and generates a data table, so as to real-time control the muck output of the rated capacity in different sections of the tunnel, which is beneficial to improving the control of various parameters in shield construction, reducing the construction risk, and ensuring the construction safety;

[0017] 2. After the weighing is completed, the driving member drives the tipping door to rotate to open the tipping door. During the opening process of the tipping door, the retaining plate is driven to move downward through the transmission mechanism. The retaining plate and the tipping door surround the material discharge opening of the slag hopper, so that the muck will not splash everywhere, which is beneficial to keeping the construction site clean;

[0018] 3. In the present application, after the tipping door is opened, due to the different volumes of the first chamber and the second chamber, and the same opening sizes of the first material discharge opening and the second material discharge opening, the forces on both sides of the tipping roller are unequal, so that the tipping roller rotates automatically. While the tipping roller rotates, it turns over the muck, making it difficult for the first material discharge opening and the second material discharge opening to be blocked, which is beneficial to discharging materials. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present application;

[0020] Figure 2 is the internal structural schematic diagram of the slag bucket in the present application.

[0021] Explanation of reference numerals:

[0022] 1. Slag bucket; 2. Weighing sensor; 3. Photoelectric sensor; 4. Flip door; 5. Driving member; 6. Suspension rod; 7. Retaining plate; 8. Transmission mechanism; 81. First connecting rod; 82. Second connecting rod; 9. Guiding mechanism; 91. Fixed plate; 92. Guide rod; 10. Partition plate; 101. First vertical part; 102. Second vertical part; 103. Connecting part; 11. Dumping roller; 111. Rotating shaft; 112. Dumping blade; 12. First chamber; 13. Second chamber; 14. Through slot. Detailed implementation manners

[0023] The following will Figure 1-2 further elaborate on the present application in detail with reference to the attached drawings.

[0024] Refer to Figure 1 , an embodiment of the present application discloses an automatic weighing and discharging device for weighing the slag output of a slag system sent by a weighing pump, including a slag bucket 1, a controller (not shown in the figure), a weighing system, and a monitoring system. Among them, the weighing system is coupled to the controller, and the monitoring system is coupled to the controller. The weighing system is used to weigh the slag bucket 1, and the monitoring system is used to monitor the capacity of the muck in the slag bucket 1.

[0025] The weighing system includes a plurality of weighing sensors 2, and the weighing sensors 2 are coupled to the controller. When arranging the slag bucket 1, a frame is built around the soil collection pit, and then a plurality of weighing sensors 2 are installed on the top of the frame. After that, the slag bucket 1 is lapped on the plurality of weighing sensors 2, and the slag bucket 1 can be weighed in real time.

[0026] The monitoring system includes a plurality of photoelectric sensors 3, and the photoelectric sensors 3 are coupled to the controller. In this embodiment, four photoelectric sensors 3 are provided, and the four photoelectric sensors 3 are respectively installed at the four corners of the slag bucket 1, and the light emitted by the photoelectric sensors 3 is incident into the slag bucket 1 in the vertical direction.

[0027] After the muck discharged by the pump muck discharging system falls into the muck hopper 1, the weighing sensor 2 weighs the weight of the muck hopper 1 and the muck in real time. When the photoelectric sensor 3 monitors that the muck reaches the rated volume of the muck hopper 1, the pump muck discharging system stops discharging muck, and the weighing system inputs the weighing data into the controller and generates a data table, so as to accurately record the muck output of the pump muck discharging system, improve the weighing accuracy, and be able to know the muck output of the rated capacity in different sections of the tunnel, which is beneficial to improving the control of various parameters in shield tunneling construction, reducing the construction risk, and ensuring the construction safety.

[0028] The upper part of the muck hopper 1 is arranged in a cuboid shape, and the lower side wall of the muck hopper 1 is arranged in a shape that is wider at the top and narrower at the bottom for discharging muck. A turning door 4 for blocking the feeding port of the muck hopper 1 and a driving member 5 for driving the turning door 4 to rotate are arranged on the muck hopper 1. There are two turning doors 4, and the two turning doors 4 are symmetrically distributed on a pair of opposite outer side walls of the muck hopper 1. Two suspension rods 6 are fixedly connected to the outer side wall of the muck hopper 1 where the turning door 4 is arranged. The two suspension rods 6 are respectively distributed at both ends in the length direction of the muck hopper 1. The turning door 4 is hinged to the suspension rod 6 and the end of the turning door 4 extends beyond the end of the muck hopper 1.

[0029] There are two groups of driving members 5, and the two groups of driving members 5 are respectively used to drive the two turning doors 4 to rotate. Two driving members 5 are a group, and the two driving members 5 in the same group are respectively located at both ends of the muck hopper 1. Specifically, in this embodiment, the driving member 5 adopts a hydraulic cylinder, and the hydraulic cylinder is arranged on the side wall of the muck hopper 1 adjacent to the turning door 4. The cylinder body of the hydraulic cylinder is hinged to the muck hopper 1, and the piston rod of the hydraulic cylinder is hinged to the end of the turning door 4. After weighing is completed, the hydraulic cylinder drives the turning door 4 to open the turning door 4 to realize muck discharging.

[0030] To prevent muck from splashing during muck discharging, a retaining plate 7 is arranged on the outer side wall of the muck hopper 1 adjacent to the turning door 4. The width of the retaining plate 7 is the same as the width of the feeding port of the muck hopper 1. The retaining plate 7 is slidably connected to the muck hopper 1 in the vertical direction, and the retaining plate 7 is located below the hinge point of the hydraulic cylinder and the muck hopper 1. A transmission mechanism 8 is arranged between each turning door 4 and the retaining plate 7. When the turning door 4 is opened, the retaining plate 7 moves downward under the action of the transmission mechanism 8; when the turning door 4 is closed, the retaining plate 7 moves upward under the action of the transmission mechanism 8.

[0031] The transmission mechanism 8 includes a first connecting rod 81 and a second connecting rod 82. One end of the first connecting rod 81 is hinged to the end of the tipping door 4, the other end of the first connecting rod 81 is hinged to the second connecting rod 82, and the other end of the second connecting rod 82 is hinged to the retaining plate 7. When the tipping door 4 is gradually opened under the drive of the hydraulic cylinder, the retaining plate 7 moves under the action of the transmission mechanism 8; when the tipping door 4 rotates to the maximum angle, the retaining plate 7 blocks the gap between the ends of the two tipping doors 4. At this time, the retaining plate 7 and the tipping door 4 enclose the periphery of the discharge opening of the slag hopper 1, so that the slag discharged from the discharge opening is not easily splashed everywhere, and thus the construction site is kept clean. When the tipping door 4 is gradually closed under the action of the hydraulic cylinder, the retaining plate 7 moves upward under the action of the transmission mechanism 8. When the tipping door 4 is completely closed, the retaining plate 7 moves to a position above the discharge opening of the slag hopper 1 for the next weighing.

[0032] To make the retaining plate 7 move more smoothly during the movement, a guiding mechanism 9 for guiding the retaining plate 7 is further provided on the slag hopper 1. The guiding mechanism 9 includes a fixing plate 91 welded to the outer side wall of the slag hopper 1. The fixing plate 91 is located below the hinge point of the hydraulic cylinder and the slag hopper 1, and the fixing plate 91 is horizontally arranged. A plurality of guiding rods 92 are fixedly connected to the lower surface of the fixing plate 91. The plurality of guiding rods 92 are equally spaced along the length direction of the fixing plate 91, and the guiding rods 92 are perpendicular to the fixing plate 91. A plurality of insertion holes for inserting the guiding rods 92 are formed at the top of the retaining plate 7, and the guiding rods 92 are slidably inserted into the corresponding insertion holes. The guiding rods 92 guide the retaining plate 7, making the retaining plate 7 more stable during the movement.

[0033] Refer to Figure 2 , in order to prevent the discharge opening of the slag hopper 1 from being blocked by slag for unloading slag, a slag turning device for turning the slag is further provided in the slag hopper 1.

[0034] The slag turning device includes a partition plate 10 and a slag turning roller 11. The partition plate 10 is welded and fixed between a pair of opposite inner side walls of the slag hopper 1. The partition plate 10 divides the slag hopper 1 into a first chamber 12 and a second chamber 13 with unequal volumes. In this embodiment, the volume of the first chamber 12 is smaller than the volume of the second chamber 13.

[0035] The partition plate 10 is composed of a first vertical portion 101, a second vertical portion 102 and a connecting portion 103. The first vertical portion 101 and the second vertical portion 102 are parallel. The second vertical portion 102 is located below the first vertical portion 101, and the width of the second vertical portion 102 is smaller than the width of the first vertical portion 101. The slag hopper 1 is symmetric about the second vertical portion 102 in the longitudinal direction. The connecting portion 103 is welded and fixed between the lower end of the first vertical portion 101 and the upper end of the second vertical portion 102. The connecting portion 103 is inclined so that the slag will not accumulate on the connecting portion 103.

[0036] The material turning roller 11 is located below the second vertical portion 102. The material turning roller 11 divides the discharge opening of the slag hopper 1 into a first discharge opening and a second discharge opening with the same size. The material turning roller 11 includes a rotating shaft 111 and a plurality of material turning blades 112 welded to the rotating shaft 111. The rotating shaft 111 is rotatably connected between a pair of opposite side walls of the slag hopper 1 through bearings. The axis of the rotating shaft 111 is parallel to the second vertical portion 102 and is located on the second vertical portion 102. The plurality of material turning blades 112 are divided into at least three groups. In this embodiment, the plurality of material turning blades 112 are divided into three groups. The three groups of material turning blades 112 are equally angularly distributed along the circumferential direction of the rotating shaft 111. Multiple material turning blades 112 in the same group are spaced apart along the length direction of the rotating shaft 111. The length of the material turning blade 112 is less than the width of the second vertical portion 102. A plurality of through grooves 14 for the material turning blades 112 to pass through are formed in the second vertical portion 102.

[0037] Since the volumes of the first chamber 12 and the second chamber 13 are not equal, and the sizes of the first discharge opening and the second discharge opening are the same, when the turning door 4 is opened, the flow rates of the muck discharged from the first discharge opening and the second discharge opening are inconsistent, that is, the forces on both sides of the material turning roller 11 are unequal. Therefore, during the slag discharging process, the material turning roller 11 will rotate automatically, thereby disturbing the muck, so that the first discharge opening and the second discharge opening will not be blocked, which is beneficial to slag discharging.

[0038] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a pump, characterized in that: It comprises a slag bucket (1), a controller, a weighing system and a monitoring system, wherein the weighing system and the monitoring system are coupled to the controller, the slag bucket (1) is connected to the weighing system, the weighing system is used to weigh the slag bucket (1), and the monitoring system is used to monitor the volume of slag in the slag bucket (1); A material turning device is arranged in the hopper (1), the material turning device comprising a partition plate (10) and a material turning roller (11), the partition plate (10) being fixed between a pair of opposite inner side walls of the hopper (1), the partition plate (10) dividing the hopper (1) into a first chamber (12) and a second chamber (13) of unequal volumes; The material turning roller (11) is rotatably arranged between a pair of opposite side walls of the hopper (1), and the material turning roller (11) is located below the partition plate (10). The material turning roller (11) divides the material discharge opening of the hopper (1) into a first material discharge opening and a second material discharge opening of the same size.

2. The automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a pump according to claim 1, characterized in that: The weighing system comprises a plurality of weighing sensors (2), wherein the weighing sensors (2) are coupled to a controller, and the hopper (1) is placed on the plurality of weighing sensors (2).

3. The automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a pump according to claim 1, characterized in that: The monitoring system comprises a plurality of photoelectric sensors (3), wherein the prime number of photoelectric sensors (3) are coupled to a controller, and the photoelectric sensors (3) are installed on the top of the slag bucket (1) and are used to monitor the volume of slag in the slag bucket (1).

4. The automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a pump according to claim 1, characterized in that: The material turning roller (11) comprises a rotating shaft (111) and a plurality of material turning pieces (112) arranged on the rotating shaft (111); the plurality of material turning pieces (112) are divided into at least three groups; the plurality of groups of material turning pieces (112) are distributed at equal angles along the circumference of the rotating shaft (111); and the partition plate (10) is provided with a plurality of through slots (14) for the material turning pieces (112) to pass through.

5. The automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a pump according to claim 1, characterized in that: The slag hopper (1) is provided with a flip door (4) for blocking a material discharge port and a driving member (5) for driving the flip door (4) to rotate.

6. The automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a pump according to claim 5, characterized in that: A retaining plate (7) is arranged on the outer side wall of the hopper (1) adjacent to the flip door (4); the retaining plate (7) is slidably connected to the hopper (1) in a vertical direction; a transmission mechanism (8) is arranged between the flip door (4) and the retaining plate (7); when the flip door (4) is opened, the retaining plate (7) moves downward; when the flip door (4) is closed, the retaining plate (7) moves upward.

7. The automatic weighing and slag discharging device for weighing the slag discharging amount of a slag discharging system pumped by a pump according to claim 6, characterized in that: The transmission mechanism (8) comprises a first connecting rod (81) and a second connecting rod (82), one end of the first connecting rod (81) is hinged to the flip door (4), the other end of the first connecting rod (81) is hinged to the second connecting rod (82), and one end of the second connecting rod (82) away from the first connecting rod (81) is hinged to the earth retaining plate (7).

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