Tunnel boring machine hydraulic system and tunnel boring machine with interlocking function

Abstract

The present application proposes a tunnel boring machine hydraulic system and a tunnel boring machine with an interlocking function, which relates to the technical field of tunnel boring machines. The tunnel boring machine hydraulic system with an interlocking function includes: a whole-machine remote control locking valve, which is used to connect to a pilot oil source; a whole-machine hydraulic control handle, which is connected to the whole-machine remote control locking valve; a manual locking valve, which is connected to a pilot oil source; a star-wheel scraper conveyor remote control locking valve, which is connected to the manual locking valve; a star-wheel scraper conveyor hydraulic control handle; an electric control system, which is respectively connected to the whole-machine remote control locking valve and the star-wheel scraper conveyor remote control locking valve, and is used to control the reversing of the whole-machine remote control locking valve and the star-wheel scraper conveyor remote control locking valve; and a beam support locking valve, which is connected to the manual locking valve. Through the technical solution of the present application, the locking function of the beam support and the star-wheel conveyor is realized by controlling the opening and closing of the locking function valve using a pilot circuit, thereby ensuring the safety of underground workers.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel boring machines, and in particular to a tunnel boring machine hydraulic system and a tunnel boring machine with an interlocking function. Background Art

[0002] The existing tunnel boring machine system is generally a load-sensitive system, which has the advantages of high efficiency and load flow not being affected by the size of the load. When the beam supporter is in motion, in order to meet safety requirements, the beam supporter action needs to be interlocked with the star wheel and scraper conveyor action, rather than interlocked with the action of the entire machine. At present, the existing locking circuit places the locking function valve on the actuator telescopic circuit, and uses the pilot circuit to control the on and off of the locking function valve and cut off the LS (Load Sensing) feedback oil circuit to achieve the locking function. It can be adapted for coal and rock models, but for hard rock models, switching the LS pipeline will affect the action of actuators such as water pumps and shovels, and there is no telescopic cylinder circuit, so the beam supporter function cannot draw oil. Summary of the Invention

[0003] The embodiments according to the present application are intended to improve at least one of the technical problems existing in the prior art or related art.

[0004] In view of this, an object according to an embodiment of the present application is to provide a hydraulic system for a roadheader with an interlocking function.

[0005] Another object according to an embodiment of the present application is to provide a tunnel boring machine.

[0006] In order to achieve the above-mentioned purpose, according to the technical solution of the first aspect of the present application, a tunnel boring machine hydraulic system with an interlocking function is provided, including: a remote control locking valve for the whole machine, the remote control locking valve for the whole machine is used to be connected to the pilot oil source; a hydraulic control handle for the whole machine, the hydraulic control handle for the whole machine is connected to the remote control locking valve for the whole machine; a manual locking valve, the manual locking valve is connected to the pilot oil source; a remote control locking valve for the star-wheel scraper conveyor, the remote control locking valve for the star-wheel scraper conveyor is connected to the manual locking valve; a hydraulic control handle for the star-wheel scraper conveyor, the hydraulic control handle for the star-wheel scraper conveyor is connected to the remote control locking valve for the star-wheel scraper conveyor; an electronic control system, respectively connected to the remote control locking valve for the whole machine and the remote control of the star-wheel scraper conveyor The locking valve is connected to control the reversing of the remote control locking valve of the whole machine and the remote control locking valve of the planetary scraper conveyor; the beam support locking valve is connected to the manual locking valve; wherein, the manual locking valve includes a first oil inlet, a first working oil port, a second working oil port and a first oil return port, the first working oil port is connected to the remote control locking valve of the planetary scraper conveyor, and the second working oil port is connected to the beam support locking valve. When the manual locking valve is in the tunneling machine working condition, the first oil inlet is connected to the first working oil port, and the second working oil port is connected to the first return oil port. When the manual locking valve is in the beam support working condition, the first oil inlet is connected to the second working oil port, and the first working oil port is connected to the first return oil port.

[0007] The hydraulic system for a roadheader with an interlocking function provided by the present application includes a remote-controlled locking valve for the entire machine, a hydraulic control handle for the entire machine, a manual locking valve, a remote-controlled locking valve for a planetary scraper conveyor, a hydraulic control handle for the planetary scraper conveyor, an electronic control system, and a locking valve for a beam supporter. The remote-controlled locking valve for the entire machine is connected to a pilot oil source. The hydraulic control handle for the entire machine is connected to the remote-controlled locking valve for the entire machine. The manual locking valve is connected to a pilot oil source. The remote-controlled locking valve for the planetary scraper conveyor is connected to the manual locking valve. The hydraulic control handle for the planetary scraper conveyor is connected to the remote-controlled locking valve for the planetary scraper conveyor. The electronic control system is connected to the remote-controlled locking valve for the entire machine and the planetary scraper conveyor, respectively, to control the switching of the remote-controlled locking valve for the entire machine and the planetary scraper conveyor. The locking valve for the beam supporter is connected to the manual locking valve. The manual locking valve includes a first oil inlet, a first working oil port, a second working oil port, and a first oil return port. The first working oil port is connected to the remote control locking valve of the planetary scraper conveyor, and the second working oil port is connected to the locking valve of the beam support device. When the manual locking valve is in the tunneling machine mode, the first oil inlet is connected to the first working oil port, and the second working oil port is connected to the first oil return port. When the manual locking valve is in the beam support mode, the first oil inlet is connected to the second working oil port, and the first working oil port is connected to the first oil return port. By controlling the manual locking valve, the remote control locking valve of the entire machine, and the remote control locking valve of the planetary scraper conveyor, the beam support device can be interlocked with the entire machine to ensure the safety of underground workers.

[0008] Specifically, after the tunnel boring machine is started, when the manual locking valve is in the tunnel boring machine operating mode, hydraulic oil passes through the pilot oil source, one way through the second oil inlet and third working oil port of the remote control locking valve of the whole machine, and enters the oil inlet of the hydraulic control handle of the whole machine. The other way through the third oil inlet and fifth working oil port of the remote control locking valve of the star-wheel scraper conveyor, and enters the oil inlet of the hydraulic control handle of the star-wheel scraper conveyor. The hydraulic control handle of the whole machine and the hydraulic control handle of the star-wheel scraper conveyor are respectively operated to activate the various actuators of the whole machine and the star-wheel first operation. At this time, if the whole machine needs to be remotely controlled, the electronic control system can simultaneously control the reversal of the remote control locking valve of the whole machine and the locking valve of the star-wheel first operation, cutting off the pilot oil of the hydraulic control handle of the whole machine and the hydraulic control handle of the star-wheel scraper conveyor, achieving both remote control and non-remote control locking functions. At the same time, since the hydraulic control oil of the beam supporter locking valve returns to the oil tank through the second working oil port and the first return oil port of the manual locking valve, the beam supporter locking valve is in a closed state and the beam supporter cannot work, thereby achieving the locking effect of the entire machine and the beam supporter.

[0009] In addition, the technical solution provided by this application may also have the following additional technical features:

[0010] In some technical solutions, optionally, the tunnel boring machine hydraulic system with interlocking function further includes: a pressure sensor, which is arranged between the manual locking valve and the beam supporter locking valve and is used to detect the pilot oil pressure of the beam supporter locking valve.

[0011] In this technical solution, the tunnel boring machine hydraulic system with interlocking function also includes a pressure sensor, which is arranged between the manual locking valve and the beam supporter locking valve and is used to detect the pilot oil pressure of the beam supporter locking valve.

[0012] In some technical solutions, optionally, the hydraulic system of the tunnel boring machine with interlocking function also includes: a hydraulically controlled reversing valve; a hydraulically controlled water valve, connected to the hydraulically controlled reversing valve; the electronic control system is also respectively connected to the pressure sensor and the hydraulically controlled reversing valve, for controlling the reversing of the hydraulically controlled reversing valve according to the pilot oil pressure of the beam support locking valve.

[0013] In this technical solution, the interlocking hydraulic system of the roadheader also includes a hydraulically controlled reversing valve and a hydraulically controlled water valve. The hydraulically controlled water valve is connected to the hydraulically controlled reversing valve. The electronic control system is also connected to a pressure sensor and the hydraulically controlled reversing valve, respectively, to control the direction of the hydraulically controlled reversing valve based on the pilot oil pressure of the beam support locking valve. Specifically, when the pressure sensor detects the pilot oil pressure of the beam support locking valve and determines that the beam support is in operation, the electronic control system controls the direction of the hydraulically controlled reversing valve, closing the hydraulically controlled water valve and simultaneously stopping the cutting motor. This achieves the function of automatically shutting off the spray inside and outside the cutting unit when the beam support is in operation.

[0014] In some technical solutions, optionally, the tunnel boring machine hydraulic system with interlocking function further includes: an oil tank; and a pump station connected to the oil tank.

[0015] In this technical solution, the hydraulic system of the roadheader with an interlocking function also includes an oil tank and a pump station. The oil tank is used to store hydraulic oil. The pump station is connected to the oil tank to provide power to drive the actuators.

[0016] In some technical solutions, optionally, the tunnel boring machine hydraulic system with interlocking function also includes: a beam supporter multi-way valve, which is respectively connected to the pump station and the beam supporter locking valve; and a beam supporter oil cylinder, which is connected to the beam supporter multi-way valve.

[0017] In this technical solution, the interlocking hydraulic system of the roadheader also includes a beam joist multi-way valve and beam joist cylinders. The beam joist multi-way valve is connected to a pump station and a beam joist locking valve, respectively. The pump station delivers hydraulic oil to the beam joist multi-way valve. The beam joist cylinders are connected to the beam joist multi-way valve. The beam joist multi-way valve distributes hydraulic oil to the corresponding beam joist cylinders based on operating instructions. After receiving the hydraulic oil, the beam joist cylinders push the piston rods to move the beam, raising or lowering it.

[0018] In some technical solutions, optionally, the remote control locking valve of the whole machine includes a second oil inlet, a third working oil port, a fourth working oil port and a second oil return port. The third working oil port is connected to the oil inlet of the hydraulic control handle of the whole machine. When the remote control locking valve of the whole machine is in the manual excavation working condition, the second oil inlet is connected to the third working oil port, and the fourth working oil port is connected to the second oil return port. When the remote control locking valve of the whole machine is in the remote control excavation working condition, the second oil inlet is connected to the fourth working oil port, and the third working oil port is connected to the second oil return port.

[0019] In this technical solution, the remote-controlled locking valve for the entire machine includes a second oil inlet, a third working oil port, a fourth working oil port, and a second oil return port. The third working oil port is connected to the oil inlet of the hydraulic control handle of the entire machine. When the remote-controlled locking valve for the entire machine is in manual excavation mode, the second oil inlet is connected to the third working oil port, and the fourth working oil port is connected to the second oil return port. When the remote-controlled locking valve for the entire machine is in remote excavation mode, the second oil inlet is connected to the fourth working oil port, and the third working oil port is connected to the second oil return port. If the entire machine requires remote control, the electronic control system can control the remote-controlled locking valve for the entire machine to cut off the pilot oil of the hydraulic control handle of the entire machine, achieving both remote and non-remote control locking functions.

[0020] In some technical solutions, optionally, the remote control locking valve of the star-wheel scraper conveyor includes a third oil inlet, a fifth working oil port, a sixth working oil port and a third oil return port. The fifth working oil port is connected to the oil inlet of the hydraulic control handle of the star-wheel scraper conveyor. When the remote control locking valve of the star-wheel scraper conveyor is in the manual excavation condition, the third oil inlet is connected to the fifth working oil port, and the sixth working oil port is connected to the third oil return port. When the remote control locking valve of the star-wheel scraper conveyor is in the remote control excavation condition, the third oil inlet is connected to the sixth working oil port, and the fifth working oil port is connected to the third oil return port.

[0021] In this technical solution, the remote control locking valve of the planetary scraper conveyor includes a third oil inlet, a fifth working oil port, a sixth working oil port, and a third oil return port. The fifth working oil port is connected to the oil inlet of the hydraulic control handle of the planetary scraper conveyor. When the remote control locking valve of the planetary scraper conveyor is in the manual excavation mode, the third oil inlet is connected to the fifth working oil port, and the sixth working oil port is connected to the third oil return port. When the remote control locking valve of the planetary scraper conveyor is in the remote excavation mode, the third oil inlet is connected to the sixth working oil port, and the fifth working oil port is connected to the third oil return port. If the entire machine requires remote control, the electronic control system can control the reversal of the planetary scraper locking valve to cut off the pilot oil of the hydraulic control handle of the planetary scraper conveyor, thereby achieving both remote control and non-remote control locking functions.

[0022] In some technical solutions, optionally, the tunnel boring machine hydraulic system with interlocking function also includes: a planetary motor group; a single-motion motor; a water pump; and a first multi-way valve group connecting the pump station and the planetary motor group, the single-motion motor, and the water pump.

[0023] In this technical solution, the tunnel boring machine hydraulic system with interlocking function also includes a planetary motor group, a first-run motor, a water pump and a first multi-way valve group. The first multi-way valve group is respectively connected to the pump station and the planetary motor group, the first-run motor and the water pump.

[0024] In some technical solutions, optionally, the tunnel boring machine hydraulic system with interlocking function also includes: a travel motor group; a shovel blade; and a second multi-way valve group connecting the pump station and the travel motor group and the shovel blade.

[0025] In this technical solution, the tunnel boring machine hydraulic system with interlocking function also includes a travel motor group, a shovel and a second multi-way valve group, and the second multi-way valve group is used to connect the pump station and the travel motor group and the shovel.

[0026] According to the technical solution of the second aspect of the present application, a tunnel boring machine is provided, comprising: a tunnel boring machine hydraulic system with an interlocking function as described in any one of the technical solutions of the first aspect of the present application.

[0027] The tunnel boring machine provided by the technical solution of the present application includes a tunnel boring machine hydraulic system with an interlocking function as in any one of the technical solutions in the first aspect of the present application. Therefore, it has all the beneficial effects of a tunnel boring machine hydraulic system with an interlocking function as in any one of the technical solutions in the first aspect of the present application, which will not be repeated here.

[0028] Additional aspects and advantages of the embodiments according to the present application will become apparent in the following description or will be understood through practice of the embodiments according to the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the partial working principle of a hydraulic system of a roadheader with an interlocking function according to an embodiment provided by the present application;

[0030] Figure 2 This is a schematic diagram of the working principle of a hydraulic system of a roadheader with an interlocking function according to an embodiment provided by the present application;

[0031] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0032] Figure 4 yes Figure 1 Enlarged view of point B in the middle;

[0033] Figure 5 yes Figure 2 Enlarged view of point C in the middle.

[0034] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names is as follows:

[0035] 10: Hydraulic system of the roadheader with interlocking function; 110: Remote control locking valve for the whole machine; 112: Second oil inlet; 114: Third working oil port; 116: Fourth working oil port; 118: Second oil return port; 120: Hydraulic control handle for the whole machine; 130: Manual locking valve; 132: First oil inlet; 134: First working oil port; 136: Second working oil port; 138: First oil return port; 140: Remote control locking valve for the star-wheel scraper conveyor; 142: Third oil inlet; 144: Fifth working oil port; 146: Sixth Working oil port; 148: Third oil return port; 150: Hydraulic control handle of star-wheel scraper conveyor; 160: Electronic control system; 170: Beam support locking valve; 180: Pressure sensor; 190: Hydraulic control reversing valve; 210: Hydraulic control water valve; 220: Oil tank; 230: Pump station; 240: Beam support multi-way valve; 250: Beam support cylinder; 260: Star-wheel motor group; 270: First transport motor; 280: Travel motor group; 290: First multi-way valve group; 292: Second multi-way valve group; 300: Water pump; 310: Shovel board. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present application, the embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the features of the embodiments of the present application can be combined with each other in the absence of conflict.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments of the present application. However, the embodiments of the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection provided by the embodiments of the present application is not limited to the specific embodiments disclosed below.

[0038] Refer to the following Figures 1 to 5 Some embodiments provided according to the present application are described.

[0039] like Figure 1 and Figure 2As shown, a hydraulic system 10 for a roadheader with an interlocking function, according to an embodiment of the present application, includes a remote-controlled locking valve 110 for the entire machine, a hydraulic control handle 120 for the entire machine, a manual locking valve 130, a remote-controlled locking valve 140 for a planetary scraper conveyor, a hydraulic control handle 150 for the planetary scraper conveyor, an electronic control system 160, and a beam support locking valve 170. Specifically, the remote-controlled locking valve 110 for the entire machine is connected to a pilot oil source. The hydraulic control handle 120 is connected to the remote-controlled locking valve 110. The manual locking valve 130 is connected to a pilot oil source. The remote-controlled locking valve 140 for the planetary scraper conveyor is connected to the manual locking valve 130. The hydraulic control handle 150 for the planetary scraper conveyor is connected to the remote-controlled locking valve 140 for the planetary scraper conveyor. The electronic control system 160 is connected to the remote control locking valve 110 of the whole machine and the remote control locking valve 140 of the planetary scraper conveyor, respectively, to control the switching of the remote control locking valve 110 of the whole machine and the remote control locking valve 140 of the planetary scraper conveyor. The beam support locking valve 170 is connected to the manual locking valve 130. Among them, the manual locking valve 130 includes a first oil inlet 132, a first working oil port 134, a second working oil port 136 and a first oil return port 138. The first working oil port 134 is connected to the planetary scraper conveyor remote control locking valve 140, and the second working oil port 136 is connected to the beam support locking valve 170. When the manual locking valve 130 is in the tunneling machine working condition, the first oil inlet 132 is connected to the first working oil port 134, and the second working oil port 136 is connected to the first oil return port 138. When the manual locking valve 130 is in the beam support working condition, the first oil inlet 132 is connected to the second working oil port 136, and the first working oil port 134 is connected to the first oil return port 138.

[0040] The interlocking hydraulic system 10 for a roadheader provided in this embodiment includes a remote-controlled locking valve 110 for the entire machine, a hydraulic control handle 120 for the entire machine, a manual locking valve 130, a remote-controlled locking valve 140 for a planetary scraper conveyor, a hydraulic control handle 150 for the planetary scraper conveyor, an electronic control system 160, and a beam support locking valve 170. The remote-controlled locking valve 110 for the entire machine is connected to a pilot oil source. The hydraulic control handle 120 is connected to the remote-controlled locking valve 110. The manual locking valve 130 is connected to a pilot oil source. The remote-controlled locking valve 140 for the planetary scraper conveyor is connected to the manual locking valve 130. The hydraulic control handle 150 for the planetary scraper conveyor is connected to the remote-controlled locking valve 140. The electronic control system 160 is connected to the remote control locking valve 110 of the whole machine and the remote control locking valve 140 of the planetary scraper conveyor, respectively, to control the switching of the remote control locking valve 110 of the whole machine and the remote control locking valve 140 of the planetary scraper conveyor. The beam support locking valve 170 is connected to the manual locking valve 130. The manual locking valve 130 includes a first oil inlet 132, a first working oil port 134, a second working oil port 136, and a first oil return port 138. The first working oil port 134 is connected to the planetary scraper conveyor remote control locking valve 140, and the second working oil port 136 is connected to the beam support locking valve 170. When the manual locking valve 130 is in the roadheader operating mode, the first oil inlet 132 is connected to the first working oil port 134, and the second working oil port 136 is connected to the first oil return port 138. When the manual locking valve 130 is in the beam support operating mode, the first oil inlet 132 is connected to the second working oil port 136, and the first working oil port 134 is connected to the first oil return port 138. By controlling the manual locking valve 130, the entire machine remote control locking valve 110, and the planetary scraper conveyor remote control locking valve 140, the beam support can be interlocked with the entire machine, ensuring the safety of underground workers.

[0041] Specifically, after the tunnel boring machine is started, when the manual locking valve 130 is in the tunnel boring machine operating mode, hydraulic oil flows through the pilot oil source, passes through the second oil inlet 112 and third working oil port 114 of the remote locking valve 110 of the entire machine, enters the oil inlet of the hydraulic control handle 120 of the entire machine, and then passes through the third oil inlet 142 and fifth working oil port 144 of the remote locking valve 140 of the planetary scraper conveyor to enter the oil inlet of the planetary scraper conveyor hydraulic control handle 150. By operating the hydraulic control handle 120 and the planetary scraper conveyor hydraulic control handle 150, respectively, the entire machine and the planetary scraper conveyor actuators can be activated. At this time, if the entire machine requires remote control, the electronic control system 160 can simultaneously control the remote locking valve 110 and the planetary scraper conveyor locking valve to reverse, cutting off the pilot oil to the hydraulic control handle 120 and the planetary scraper conveyor hydraulic control handle 150, achieving both remote and non-remote control locking. At the same time, since the hydraulic control oil of the beam support device locking valve 170 returns to the oil tank 220 through the second working oil port 136 and the first return oil port 138 of the manual locking valve 130, the beam support device locking valve 170 is in a closed state, and the beam support device cannot work, thereby achieving the locking effect of the entire machine and the beam support device.

[0042] In some embodiments, optionally, the tunnel boring machine hydraulic system 10 with interlocking function further includes a pressure sensor 180 , which is disposed between the manual locking valve 130 and the beam support locking valve 170 to detect the pilot oil pressure of the beam support locking valve 170 .

[0043] In some embodiments, the tunnel boring machine hydraulic system 10 with an interlocking function optionally further includes a hydraulically controlled reversing valve 190 and a hydraulically controlled water valve 210. The hydraulically controlled water valve 210 is connected to the hydraulically controlled reversing valve 190. The electronic control system 160 is also connected to the pressure sensor 180 and the hydraulically controlled reversing valve 190, respectively, to control the reversing direction of the hydraulically controlled reversing valve 190 based on the pilot oil pressure of the beam joist locking valve 170. Specifically, when the pressure sensor 180 detects the pilot oil pressure of the beam joist locking valve 170 and determines that the beam joist is in operation, the electronic control system 160 controls the reversing direction of the hydraulically controlled reversing valve 190, closing the hydraulically controlled water valve 210 and simultaneously stopping the cutting motor, thereby automatically shutting off the spray inside and outside the cutting unit when the beam joist is in operation.

[0044] In some embodiments, the hydraulic system 10 for a roadheader with an interlocking function optionally further includes an oil tank 220 and a pump station 230. The oil tank 220 is used to store hydraulic oil. The pump station 230 is connected to the oil tank 220 to provide power to drive the actuator to operate.

[0045] In some embodiments, the roadheader hydraulic system 10 with an interlocking function optionally further includes a beam joist multi-way valve 240 and a beam joist cylinder 250. The beam joist multi-way valve 240 is connected to the pump station 230 and the beam joist locking valve 170, respectively. The pump station 230 delivers hydraulic oil to the beam joist multi-way valve 240. The beam joist cylinder 250 is connected to the beam joist multi-way valve 240. The beam joist multi-way valve 240 distributes hydraulic oil to the corresponding beam joist cylinder 250 based on the operating instructions. After receiving the hydraulic oil, the beam joist cylinder 250 pushes the piston rod to move, thereby achieving the lifting or movement of the beam.

[0046] In some embodiments, the whole-machine remote-controlled locking valve 110 optionally includes a second oil inlet 112, a third working oil port 114, a fourth working oil port 116, and a second oil return port 118. The third working oil port 114 is connected to the oil inlet of the whole-machine hydraulic control handle 120. When the whole-machine remote-controlled locking valve 110 is in manual excavation mode, the second oil inlet 112 is connected to the third working oil port 114, and the fourth working oil port 116 is connected to the second oil return port 118. When the whole-machine remote-controlled locking valve 110 is in remote excavation mode, the second oil inlet 112 is connected to the fourth working oil port 116, and the third working oil port 114 is connected to the second oil return port 118. If the whole-machine remote-controlled locking valve 110 requires remote control, the electronic control system 160 can control the whole-machine remote-controlled locking valve 110 to cut off the pilot oil of the whole-machine hydraulic control handle 120, thereby achieving both remote control and non-remote control locking functions.

[0047] In some embodiments, the remote-controlled locking valve 140 for the planetary scraper conveyor optionally includes a third oil inlet 142, a fifth working oil port 144, a sixth working oil port 146, and a third oil return port 148. The fifth working oil port 144 is connected to the oil inlet of the planetary scraper conveyor hydraulic control handle 150. When the remote-controlled locking valve 140 for the planetary scraper conveyor is in manual excavation mode, the third oil inlet 142 is connected to the fifth working oil port 144, and the sixth working oil port 146 is connected to the third oil return port 148. When the remote-controlled locking valve 140 for the planetary scraper conveyor is in remote excavation mode, the third oil inlet 142 is connected to the sixth working oil port 146, and the fifth working oil port 144 is connected to the third oil return port 148. If remote control of the entire machine is required, the electronic control system 160 can control the planetary scraper conveyor locking valve to reverse direction, cutting off the pilot oil to the planetary scraper conveyor hydraulic control handle 150, thereby achieving both remote and non-remote control locking functions.

[0048] In some embodiments, optionally, the tunnel boring machine hydraulic system 10 with interlocking function also includes a planetary motor group 260, a single-motion motor 270, a water pump 300 and a first multi-way valve group 290, and the first multi-way valve group 290 is respectively connected to the pump station 230 and the planetary motor group 260, the single-motion motor 270, and the water pump 300.

[0049] In some embodiments, optionally, the tunnel boring machine hydraulic system 10 with interlocking function also includes a travel motor group 280, a shovel 310 and a second multi-way valve group 292, and the second multi-way valve group 292 is used to connect the pump station 230 and the travel motor group 280 and the shovel 310.

[0050] A roadheader proposed according to an embodiment of the present application includes a roadheader hydraulic system 10 with an interlocking function as described in any of the above embodiments.

[0051] The tunnel boring machine provided according to the embodiment of the present application includes a tunnel boring machine hydraulic system 10 with an interlocking function as in any of the above embodiments, and thus it has all the beneficial effects of the tunnel boring machine hydraulic system 10 with an interlocking function as in any of the above embodiments, which will not be repeated here.

[0052] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, according to a specific embodiment of the tunnel boring machine hydraulic system 10 with an interlocking function proposed in the present application, a pilot circuit is used to control the on-off of the locking function valve to realize the locking function of the beam supporter and the star wheel.

[0053] Specifically, if Figure 1 As shown, when the manual locking valve 130 is in the working condition of the tunnel boring machine, the hydraulic oil passes through the pilot oil source Pi, through the second oil inlet 112 (P2 port) and the third working oil port 114 (A2 port) of the remote control locking valve 110 of the whole machine, and enters the oil inlet (P4 port) of the hydraulic control handle 120 of the whole machine, and passes through the third oil inlet 142 (P3 port) and the fifth working oil port 144 (A3 port) of the remote control locking valve 140 of the star-wheel scraper conveyor, and enters the oil inlet (P5 port) of the hydraulic control handle 150 of the star-wheel scraper conveyor, and respectively operates the hydraulic control handle 120 of the whole machine and the hydraulic control handle 150 of the star-wheel scraper conveyor, so that the various actuators of the whole machine and the star-wheel conveyor can be operated. At this time, if the entire machine has a remote control requirement, the electronic control system 160 can simultaneously control the remote control locking valve 110 of the entire machine and the reversing of the star wheel first operation locking valve, cut off the pilot oil of the entire machine hydraulic control handle 120 and the star wheel scraper conveyor hydraulic control handle 150, and achieve remote control and non-remote control locking effects.

[0054] At the same time, since the hydraulic control oil of the beam support device locking valve 170 returns to the oil tank 220 through the second working oil port 136 (B1 port) and the first return oil port 138 (T1 port) of the manual locking valve 130, the beam support device locking valve 170 is in a closed state, and the beam support device cannot work, thereby achieving the locking effect of the entire machine and the beam support device.

[0055] When the pressure sensor 180 detects the pilot oil pressure of the beam support locking valve 170, it determines that the beam support is in working state, and controls the hydraulic control reversing valve 190 through the electronic control system 160 to reverse the hydraulic control water valve 210, and stops the cutting motor at the same time, so as to achieve the function of automatically closing the spray inside and outside the cutting part when the beam support is in working state.

[0056] Among them, a1, a2, a3, a4, a5, a6, a7, a10, a11, b1, b2, b3, b4, b5, b6, b7, b10, and b11 are respectively the working oil ports for the actions of the various actuators of the whole machine hydraulic control handle 120 and the star wheel scraper conveyor hydraulic control handle 150.

[0057] Alternative way:

[0058] The beam support locking valve 170 and the beam support reversing valve can be integrated together.

[0059] The hydraulically controlled reversing valve 190 and the hydraulically controlled water valve 210 can be integrated.

[0060] The whole machine remote control locking valve 110 and the star wheel scraper conveyor remote control locking valve 140 can be integrated together.

[0061] In summary, the beneficial effects of the embodiments of the present application are:

[0062] 1. The beam support device can be interlocked with the whole machine.

[0063] 2. It can realize the automatic closing function of the beam support device and the cutting motor, and the internal and external spray of the cutting.

[0064] 3. The valve assembly is divided into 2 groups and can be controlled separately.

[0065] In the embodiments according to the present application, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments according to the present application can be understood according to specific circumstances.

[0066] In the description of the embodiments of the present application, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0067] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0068] The above are only preferred embodiments of the present application and are not intended to limit the embodiments of the present application. For those skilled in the art, various modifications and variations can be made to the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of the present application shall be included in the scope of protection of the embodiments of the present application.

Claims

1. A hydraulic system for a roadheader with an interlocking function, characterized in that: include: A whole-machine remote control locking valve (110), the whole-machine remote control locking valve (110) being used to be connected to a pilot oil source; A whole-machine hydraulic control handle (120), the whole-machine hydraulic control handle (120) being connected to the whole-machine remote control locking valve (110); a manual locking valve (130), the manual locking valve (130) being connected to the pilot oil source; A remote-controlled locking valve (140) for a star-wheel scraper conveyor, the remote-controlled locking valve (140) for the star-wheel scraper conveyor being connected to the manual locking valve (130); A star-wheel scraper conveyor hydraulic control handle (150), the star-wheel scraper conveyor hydraulic control handle (150) being connected to the star-wheel scraper conveyor remote control locking valve (140); An electric control system (160) is connected to the whole machine remote control locking valve (110) and the star wheel scraper conveyor remote control locking valve (140) respectively, and is used to control the switching of the whole machine remote control locking valve (110) and the star wheel scraper conveyor remote control locking valve (140); A beam support locking valve (170) connected to the manual locking valve (130); The manual locking valve (130) includes a first oil inlet (132), a first working oil port (134), a second working oil port (136) and a first oil return port (138); the first working oil port (134) is connected to the remote control locking valve (140) of the star wheel scraper conveyor, and the second working oil port (136) is connected to the beam support locking valve (170); when the manual locking valve (130) is in the tunneling machine working state, the first oil inlet (132) is connected to the first working oil port (134), and the second working oil port (136) is connected to the first oil return port (138); when the manual locking valve (130) is in the beam support working state, the first oil inlet (132) is connected to the second working oil port (136), and the first working oil port (134) is connected to the first oil return port (138); The whole machine remote control locking valve (110) comprises a second oil inlet (112), a third working oil port (114), a fourth working oil port (116) and a second oil return port (118); the third working oil port (114) is connected to the oil inlet of the whole machine hydraulic control handle (120); when the whole machine remote control locking valve (110) is in a manual excavation working state, the second oil inlet (112) is communicated with the third working oil port (114), and the fourth working oil port (116) is communicated with the second oil return port (118); when the whole machine remote control locking valve (110) is in a remote excavation working state, the second oil inlet (112) is communicated with the fourth working oil port (116), and the third working oil port (114) is communicated with the second oil return port (118); The remote control locking valve (140) of the star-wheel scraper conveyor includes a third oil inlet (142), a fifth working oil port (144), a sixth working oil port (146) and a third oil return port (148). The fifth working oil port (144) is connected to the oil inlet of the hydraulic control handle (150) of the star-wheel scraper conveyor. When the remote control locking valve (140) of the star-wheel scraper conveyor is in a manual excavation working state, the third oil inlet (142) is communicated with the fifth working oil port (144), and the sixth working oil port (146) is communicated with the third oil return port (148). When the remote control locking valve (140) of the star-wheel scraper conveyor is in a remote control excavation working state, the third oil inlet (142) is communicated with the sixth working oil port (146), and the fifth working oil port (144) is communicated with the third oil return port (148).

2. The hydraulic system of a roadheader with an interlocking function according to claim 1, characterized in that: Also includes: A pressure sensor (180) is provided between the manual locking valve (130) and the beam support locking valve (170) and is used to detect the pilot oil pressure of the beam support locking valve (170).

3. The hydraulic system of a roadheader with an interlocking function according to claim 2, characterized in that: Also includes: Hydraulic control reversing valve (190); A hydraulically controlled water valve (210) connected to the hydraulically controlled reversing valve (190); The electric control system (160) is also connected to the pressure sensor (180) and the hydraulically controlled reversing valve (190) respectively, and is used to control the reversing of the hydraulically controlled reversing valve (190) according to the pilot oil pressure of the beam support locking valve (170).

4. The hydraulic system of a roadheader with an interlocking function according to claim 2, characterized in that: Also includes: Fuel Tank (220); The pump station (230) is connected to the oil tank (220).

5. The hydraulic system of a roadheader with an interlocking function according to claim 4, characterized in that: Also includes: A beam support multi-way valve (240) is connected to the pump station (230) and the beam support locking valve (170) respectively; The beam supporting device oil cylinder (250) is connected to the beam supporting device multi-way valve (240).

6. The hydraulic system of a roadheader with an interlocking function according to claim 4, characterized in that: Also includes: Planetary gear motor assembly (260); Yiyun Motor (270); Water Pump (300); The first multi-way valve group (290) connects the pump station (230), the planetary motor group (260), the first motor (270), and the water pump (300).

7. The hydraulic system of a roadheader with an interlocking function according to claim 6, characterized in that: Also includes: Travel motor group (280); Shovel board (310); The second multi-way valve group (292) connects the pump station (230), the travel motor group (280), and the shovel plate (310).

8. A tunnel boring machine, characterized in that: include: A hydraulic system for a roadheader with an interlocking function according to any one of claims 1 to 7.

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