A quarry box with automatic door opening for stone discharge and its control system

Abstract

This utility model discloses a quarry box with an automatic door opening mechanism for stone removal and its control system. The quarry box includes a quarry box body, a door mechanism, a hydraulic cylinder assembly, and a pressure sensor. A stone removal port is opened at the bottom of the quarry box, and the door mechanism is connected to the stone removal port. The hydraulic cylinder assembly is mounted on the quarry box body and connected to the door mechanism to drive the door mechanism, thereby sealing or opening the stone removal port. The pressure sensor is mounted on the hydraulic cylinder assembly. Based on the pressure sensor, this utility model allows the operator to understand the current stone accumulation in the quarry box. This enables advance preparation for stone removal and also allows the operator to understand the current sand and gravel conditions of the tunneling strata, thus determining whether to adjust the tunneling parameters of the tunnel boring machine. The high degree of automation improves work efficiency and reduces the operator's workload to a certain extent.

Description

Technical Field

[0001] This utility model relates to the technical field of quarry stone discharge devices, and in particular to a quarry stone discharge device with an automatic door opening mechanism and its control system. Background Technology

[0002] A quarry is a filtration system or component used by slurry tunneling machines (TBMs) to filter the excavated mud or rocks. After the TBM has been operating for a period of time, when the flow rate at the outlet suddenly drops, it indicates that rocks inside the quarry are affecting the flow of mud and water in the pipeline. The quarry must be opened and the rocks and mud cake inside cleaned before the entire system can operate normally. The existing solution involves the operator opening the bypass valve of the circulation system to cut off the pipeline inside the quarry, then opening the quarry and manually shoveling out the rocks or mud cake with a shovel, transferring them to a transport vehicle, and then hauling them out of the shaft for disposal. For sections with a lot of sand and gravel along the excavation path, the quarry gate needs to be opened 5-7 times per ring excavation. This high frequency of opening results in a heavy workload for the operator, impacting excavation efficiency and the project schedule. Utility Model Content

[0003] The purpose of this utility model is to provide a quarry box with automatic door opening for stone discharge and its control system, which can automatically detect the pressure change of the quarry box door and realize the automatic opening of the door by the hydraulic cylinder to discharge stones by controlling the valves. Compared with the existing method of detecting the flow rate by the slurry outlet flow meter, it can greatly simplify the structure of the quarry box and automatically and reliably complete the function of discharging stones from the quarry box.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] According to one aspect of the present invention, a quarry box with an automatic door opening mechanism for discharging stones and its control system are provided, comprising:

[0006] The quarry body has a stone discharge port at its bottom;

[0007] A hatch mechanism, which is connected to the stone discharge port;

[0008] A hydraulic cylinder assembly is mounted on the quarry body and is connected to the hatch mechanism to drive the hatch mechanism so that the hatch mechanism seals or opens the stone discharge port.

[0009] A pressure sensor is mounted on the hydraulic cylinder assembly.

[0010] Preferably, the quarry body includes a chamber, a slurry inlet, a slurry outlet, and a pressure relief port. The slurry inlet is provided at one end of the chamber, and the slurry outlet is provided at the other end. The pressure relief port is connected to the chamber and a pressure relief gate valve is connected to the pressure relief port.

[0011] Preferably, the hatch mechanism includes a sealing plate, a first sealing gasket, and a second sealing gasket. The first sealing gasket and the second sealing gasket are both disposed on one side of the sealing plate, and the sealing plate is sealed to the stone discharge port through the first sealing gasket and the second sealing gasket.

[0012] Preferably, the hydraulic cylinder assembly includes a cylinder, a connecting rod assembly, and a rotating plate. The fixed end of the cylinder is hinged to the quarry body, the movable end of the cylinder is hinged to the connecting rod assembly, both ends of the connecting rod assembly are respectively hinged to the rotating plate, and the rotating plate is fixedly connected to the hatch mechanism.

[0013] Preferably, the linkage assembly includes a first linkage and a second linkage, one end of the first linkage is hinged to the hydraulic cylinder and the rotating plate respectively, the other end is hinged to the second linkage, and the end of the second linkage away from the first linkage is hinged to the rotating plate.

[0014] Preferably, it also includes a rockfall trough, which is located below the rockfall outlet.

[0015] Preferably, a control system for a quarry box with an automatically opening hatch for stone discharge includes a quarry box with an automatically opening hatch for stone discharge, and further includes a slurry inlet main path assembly, a slurry inlet bypass assembly, and a slurry outlet assembly. The slurry inlet main path assembly is connected to the quarry box body. One end of the slurry inlet bypass assembly is connected to the slurry inlet main path assembly, and the other end is connected to the slurry outlet assembly. The slurry outlet assembly is connected to the quarry box body.

[0016] Preferably, the main slurry inlet assembly includes a main slurry inlet pipe and a main slurry inlet pipe gate valve, wherein the main slurry inlet pipe is connected to the main slurry inlet pipe gate valve, and the main slurry inlet pipe gate valve is connected to the quarry body.

[0017] Preferably, the slurry inlet bypass assembly includes a slurry inlet bypass pipe and a slurry inlet bypass pipe gate valve. One end of the slurry inlet bypass pipe is connected to the slurry inlet main pipeline assembly, and the other end is connected to the slurry outlet assembly. The slurry inlet bypass pipe gate valve is fixedly installed on the slurry inlet bypass pipe.

[0018] Preferably, the slurry discharge assembly includes a slurry discharge pipe and a slurry discharge gate valve, wherein the slurry discharge pipe is connected to the slurry discharge gate valve, and the slurry discharge gate valve is connected to the quarry body.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] This invention monitors the pressure value of the hydraulic cylinder assembly using a pressure sensor, thereby determining the pressure on the hatch of the quarry body. When the pressure on the hatch exceeds a critical value, the hydraulic cylinder assembly is controlled to drive the hatch mechanism, opening the stone discharge port and thus discharging stones from the quarry. Based on the pressure sensor, the operator can understand the current weight changes inside the quarry and determine the stone accumulation situation. This allows for advance preparation for stone discharge and also provides information on the current sand and gravel conditions of the tunneling strata, enabling adjustments to the tunneling parameters of the tunnel boring machine. The high degree of automation improves work efficiency and reduces the operator's workload. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a structural schematic diagram of the quarry box body of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the hydraulic cylinder assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of the rockfall trough of this utility model.

[0025] In the attached diagram: 1. Quarry body; 2. Door mechanism; 3. Hydraulic cylinder assembly; 4. Rockfall chute; 5. Filter channel hole; 6. Main slurry inlet pipe; 7. Main slurry inlet pipe gate valve; 8. Slurry inlet bypass pipe; 9. Slurry inlet bypass pipe gate valve; 10. Slurry outlet pipe; 11. Slurry outlet gate valve; 12. Pressure relief gate valve; 100. Quarry body; 101. Slurry inlet; 102. Slurry outlet; 103. Pressure relief port; 200. Sealing plate; 201. First sealing gasket; 202. Second sealing gasket; 300. Cylinder; 301. First connecting rod; 302. Second connecting rod; 303. Rotating plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the utility model, and these aspects can be achieved even without these specific details.

[0027] Please see Figures 1 to 4 This utility model provides a quarry box with an automatic door opening mechanism for discharging stones and its control system. The technical solution is as follows:

[0028] A quarry box with an automatically opening hatch for stone discharge includes a quarry box body 1, a hatch mechanism 2, a hydraulic cylinder assembly 300, and a pressure sensor. The quarry box body 1 includes a chamber 100, a slurry inlet 101, a slurry outlet 102, and a pressure relief port 103. The slurry inlet 101 is located at one end of the chamber 100, and the slurry outlet 102 is located at the other end. A pressure relief port 103 is located at the end of the chamber 100 near the slurry outlet 102, and the pressure relief port 103 communicates with the chamber 100. A pressure relief gate valve 12 is connected to the pressure relief port 103. A base is provided at the bottom of the chamber 100 to support it. A stone discharge port is opened at the bottom of the chamber 100. The hatch mechanism 2 is located on the stone discharge port.

[0029] The hatch mechanism 2 includes a sealing plate 200, a first sealing gasket 201, and a second sealing gasket 202. The first and second sealing gaskets 201 and 202 are fixedly disposed on the inner periphery of the sealing plate 200 near its edge. Two first sealing gaskets 201 are provided, arranged longitudinally along the sealing plate 200. Two second sealing gaskets 202 are provided, arranged transversely along the sealing plate 200. The sealing plate 200 is sealed to the stone discharge port via the first and second sealing gaskets 201 and 202; that is, when the sealing plate 200 is in contact with the stone discharge port, the first and second sealing gaskets 201 and 202 are sealed to the stone discharge port. When the hatch is blocked and stones need to be removed, the sealing plate 200 is opened by control, opening the stone discharge port, and the stones located inside the hatch 100 are discharged through the stone discharge port. Furthermore, a stone drop trough 4 is provided below the stone discharge port, and a water filter hole 5 is provided on the stone drop trough 4. The stones or cement discharged from the stone discharge port fall into the stone drop trough 4, and only the stone drop trough 4 needs to be cleaned.

[0030] The sealing plate 200 is driven by a hydraulic cylinder assembly 3. Specifically, the hydraulic cylinder assembly 3 includes a cylinder 300, a connecting rod assembly, and a rotating plate 303. The fixed end of the cylinder 300 is hinged to the cabin 100, and the movable end of the cylinder 300 is hinged to the connecting rod assembly. The connecting rod assembly includes a first connecting rod 301 and a second connecting rod 302. One end of the first connecting rod 301 is hinged to both the cylinder 300 and the rotating plate 303 via a first pivot. The cylinder 300 and the first connecting rod 301 are located on opposite sides of the rotating plate 303. The first pivot passes through the rotating plate 303, with one end hinged to the movable end of the cylinder 300 and the other end hinged to one end of the first connecting rod 301. The end of the first connecting rod 301 away from the first pivot is hinged to one end of the second connecting rod 302, and the end of the second connecting rod 302 away from the first connecting rod 301 is hinged to the rotating plate 303. The end of the rotating plate 303 away from the first connecting rod 301 and the second connecting rod 302 is fixedly connected to the sealing plate 200. Through the extension and retraction movement of the hydraulic cylinder 300, the first connecting rod 301 and the second connecting rod 302 are driven, causing the sealing plate 200 to contact or move away from the stone discharge port, thereby achieving the purpose of closing or opening the stone discharge port.

[0031] To improve the automation level of the device, a pressure sensor is fixedly installed on the pressure measuring port of the hydraulic cylinder 300. The pressure sensor monitors the pressure of the hydraulic cylinder 300, thereby monitoring the pressure on the hatch of the compartment 100. The pressure sensor is connected to a PLC controller, and the hydraulic cylinder 300 is also connected to the PLC controller. The PLC controller receives the monitoring signal from the pressure sensor and sets a certain pressure threshold. When the pressure detected on the hatch of the compartment 100 exceeds this threshold, the PLC controller controls the hydraulic cylinder 300 to contract, driving the sealing plate 200 away from the stone discharge port. This allows the cement and stones inside the compartment 100 to be discharged through the stone discharge port and fall into the stone drop trough 4, requiring only cleaning of the stone drop trough 4. The hatch opening and closing logic is as follows: when the compartment is empty, the pressure on the hatch is P1; when the compartment is full of mud and water, the pressure on the hatch is P2; when the compartment is half mud and water and half stones, the pressure on the hatch is P3, and the pressure sensor detects the hydraulic cylinder pressure as P. When P1 ≤ P < P2, there is no blockage inside the chamber, and the hatch does not need to be opened. When P2 ≤ P ≤ P3, there are stones inside the chamber, but they do not cause a blockage, and the hatch does not need to be opened. When P > P3, there is a blockage inside the chamber. By controlling the hydraulic cylinder 300 to contract, the hatch is opened to expel the stones. In this embodiment, by setting P3 as a critical value, when the pressure sensor detects that the pressure in the hydraulic cylinder is greater than P3, the PLC controller controls the hydraulic cylinder to contract, moving the hatch away from the stone discharge port to perform the stone discharge operation. It should be noted that in this embodiment, setting a critical value in the PLC controller and receiving the signal from the pressure sensor and performing simple logical judgments through the PLC controller is existing technology, and this application will not elaborate further.

[0032] This application also discloses a control system for a quarry with an automatically opening hatch for stone discharge. The system includes the quarry with an automatically opening hatch for stone discharge, and further includes a slurry inlet main assembly, a slurry inlet bypass assembly, and a slurry outlet assembly. The slurry inlet main assembly includes a slurry inlet main pipe 6 and a slurry inlet main pipe gate valve 7. One end of the slurry inlet main pipe gate valve 7 is connected to the slurry inlet port 101, and the other end is connected to the slurry inlet main pipe 6. The end of the slurry inlet main pipe 6 furthest from the slurry inlet main pipe gate valve 7 is connected to a slurry shield tunneling machine. The slurry inlet bypass assembly includes a slurry inlet bypass pipe 8 and a slurry inlet bypass pipe gate valve 9. One end of the slurry inlet bypass pipe 8 is connected to the slurry inlet main pipe 6, and the other end is connected to the slurry outlet assembly. The slurry inlet bypass pipe gate valve 9 is fixedly mounted on the slurry inlet bypass pipe 8. The slurry outlet assembly includes a slurry outlet pipe 10 and a slurry outlet gate valve 11. The slurry outlet pipe 10 is connected to the slurry outlet gate valve 11, and the end of the slurry outlet gate valve 11 furthest from the slurry outlet pipe 10 is connected to the quarry body 1. Each gate valve is connected to the PLC controller, namely, the main slurry inlet gate valve 7, the bypass slurry inlet gate valve 9, and the outlet slurry gate valve 11 are electrically connected to the PLC controller.

[0033] During the quarrying stage, the main slurry inlet gate valve 7 opens the main slurry inlet pipe 6, the slurry outlet gate valve 11 opens the slurry outlet pipe 10, the slurry inlet bypass gate valve 9 closes the slurry inlet bypass pipe 8, and the pressure relief gate valve 12 is closed. The directional valve of the hydraulic cylinder 300 is closed. During the rock discharge stage, the main slurry inlet gate valve 7 closes the main slurry inlet pipe 6, the slurry outlet gate valve 11 is closed, the slurry inlet bypass gate valve 9 opens the slurry inlet bypass pipe 8, and the pressure relief valve is opened. The directional valve of the hydraulic cylinder 300 is opened.

[0034] In use, this utility model can be based on a set threshold pressure value for the hatch. When the hatch pressure exceeds the set threshold value, the oil pressure of the corresponding hydraulic cylinder 300 rises and exceeds the threshold value. The pressure sensor on the hydraulic cylinder 300 sends a signal to the PLC controller. The PLC controller sends a closing command to the hydraulic gates for the front and rear slurry inlets of the quarry box, and at the same time sends an opening command to the bypass slurry inlet bypass valve. Then, it sends an opening command to the pressure relief valve of the quarry box, depressurizing the quarry box. Finally, the PLC controller sends a command to the directional valve on the hydraulic line of the hydraulic cylinder 300, causing the hydraulic cylinder 300 to retract, thereby opening the hatch. The stones inside the hatch automatically fall into the rockfall chute 4. The rockfall chute 4 is then manually pulled to the crane working area. The operator controls the crane to transport the entire rockfall chute 4 outside the well.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A stone box with automatic opening of the hatch for the expulsion of stones, characterized in that, include: The quarry body has a stone discharge port at its bottom; A hatch mechanism, which is connected to the stone discharge port; A hydraulic cylinder assembly is mounted on the quarry body and is connected to the hatch mechanism to drive the hatch mechanism so that the hatch mechanism seals or opens the stone discharge port. A pressure sensor is mounted on the hydraulic cylinder assembly.

2. The stone box with automatic opening of cabin door for discharging stone according to claim 1, characterized in that: The quarry body includes a chamber, a slurry inlet, a slurry outlet, and a pressure relief port. The slurry inlet is located at one end of the chamber, and the slurry outlet is located at the other end. The pressure relief port is connected to the chamber and a pressure relief gate valve is connected to the pressure relief port.

3. The automatic opening type stone dislodging lithotripsy box according to claim 1, wherein: The hatch mechanism includes a sealing plate, a first sealing gasket, and a second sealing gasket. Both the first and second sealing gaskets are disposed on one side of the sealing plate, and the sealing plate is sealed to the stone discharge port through the first and second sealing gaskets.

4. The automatic opening type stone box for removing stone in the cabin door according to claim 1, characterized in that: The hydraulic cylinder assembly includes a cylinder, a connecting rod assembly, and a rotating plate. The fixed end of the cylinder is hinged to the quarry body, the movable end of the cylinder is hinged to the connecting rod assembly, and both ends of the connecting rod assembly are respectively hinged to the rotating plate. The rotating plate is fixedly connected to the hatch mechanism.

5. The automatic opening type stone dislodging lithotripsy box according to claim 4, characterized in that: The linkage assembly includes a first linkage and a second linkage. One end of the first linkage is hinged to the hydraulic cylinder and the rotating plate, and the other end is hinged to the second linkage. The end of the second linkage away from the first linkage is hinged to the rotating plate.

6. The automatic opening type stone box for removing stone in the body cavity according to claim 1, wherein: It also includes a rockfall trough, which is located below the rockfall outlet.

7. A control system for a stone extraction tank with automatic opening of the hatch for the removal of stones, comprising a stone extraction tank with automatic opening of the hatch for the removal of stones according to any one of claims 1 to 6, characterized in that: It also includes a slurry inlet main road assembly, a slurry inlet bypass assembly, and a slurry outlet assembly. The slurry inlet main road assembly is connected to the quarry body. One end of the slurry inlet bypass assembly is connected to the slurry inlet main road assembly, and the other end is connected to the slurry outlet assembly. The slurry outlet assembly is connected to the quarry body.

8. The control system of the automatic opening type stone dislodging lithotripsy cabin according to claim 7, characterized in that: The main slurry inlet assembly includes a main slurry inlet pipe and a main slurry inlet pipe gate valve. The main slurry inlet pipe is connected to the main slurry inlet pipe gate valve, and the main slurry inlet pipe gate valve is connected to the quarry body.

9. The control system of the automatic opening type stone dislodging lithotripsy cabin according to claim 7, characterized in that: The slurry inlet bypass assembly includes a slurry inlet bypass pipe and a slurry inlet bypass pipe gate valve. One end of the slurry inlet bypass pipe is connected to the slurry inlet main assembly, and the other end is connected to the slurry outlet assembly. The slurry inlet bypass pipe gate valve is fixedly installed on the slurry inlet bypass pipe.

10. The control system of the automatic opening type stone dislodging lithotomy tank according to claim 7, characterized in that: The slurry discharge assembly includes a slurry discharge pipe and a slurry discharge gate valve. The slurry discharge pipe is connected to the slurry discharge gate valve, and the slurry discharge gate valve is connected to the quarry body.

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