Heading machine

Abstract

The invention relates to the technical field of tunnel construction, in particular to a heading machine. According to the heading machine provided by the invention, the cutting mechanism is arranged, the cutting mechanism comprises the large arm frame and the cutterhead assembly, and the cutterhead assembly is used for breaking rocks. The large arm frame is provided with a first sliding assembly, a rotation assembly and a lifting piece, the two ends of the rotation assembly are connected with the first sliding assembly and the lifting piece respectively, and therefore when the first sliding assembly is started, the rotation assembly is driven to slide front and back, and the rotation assembly drives the cutter head assembly to swing left and right. The two ends of the lifting part are connected with the rotating assembly and the cutter head assembly respectively, the lifting part drives the cutter head assembly to swing up and down when being started, due to the design, the large arm frame can conduct multi-angle adjustment on the cutter head assembly, the flexibility of the cutting mechanism is improved, the cutting capacity of the heading machine is improved, and then the heading efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and in particular to a tunnel boring machine. Background Art

[0002] The increasing demand for underground engineering construction has led to the rapid development of tunnel boring machine technology. A tunnel boring machine is a mechanical device used for tunnel excavation. It can cut, dig or drill holes in underground tunnels to create a required space or passage. Compared with traditional construction methods such as drilling and blasting, tunnel boring machines have higher safety and less impact on the surrounding environment.

[0003] The existing tunnel boring machine is mainly composed of a cutting device and a traveling mechanism. As the traveling mechanism moves forward, the cutting mechanism is driven forward to break the rock.

[0004] However, the current cutting capacity of the tunnel boring machine is insufficient and the cutting device is not flexible enough, resulting in low tunneling efficiency under hard rock tunnel conditions. Summary of the invention

[0005] The present application provides a tunnel boring machine to solve the problems of insufficient cutting capacity of the current tunnel boring machine, insufficient flexibility of the cutting device, and low tunnel boring efficiency under hard rock tunnel conditions.

[0006] In order to achieve the above purpose, the technical solution of this application is as follows:

[0007] A tunnel boring machine provided in the present application includes a cutting mechanism and a traveling mechanism. The cutting mechanism includes a boom and a cutter disc assembly. The boom includes a first sliding assembly, a rotating assembly and a lifting member. One end of the first sliding assembly is connected to the chassis of the traveling mechanism, and the other end is connected to the rotating assembly. The end of the rotating assembly away from the first sliding assembly is hinged to the cutter disc assembly. When the first sliding assembly is started, the rotating assembly is driven to slide forward and backward, so that the rotating assembly drives the cutter disc assembly to slide forward and backward; the end of the rotating assembly away from the first sliding assembly is also hinged to the fixed end of the lifting member, and the driving end of the lifting member is hinged to the cutter disc assembly. When the rotating assembly is started, the cutter disc assembly is driven to swing left and right, and the extension of the lifting member drives the cutter disc assembly to swing up and down.

[0008] In one possible implementation, the tunnel boring machine provided in the present application, the first sliding assembly includes a groove cylinder, a guide column and a sliding frame mounted on the guide column, the driving end of the groove cylinder is connected to the sliding frame, and the groove cylinder is used to drive the sliding frame to slide relative to the guide column; the rotating assembly includes a rotating support and a turntable installed on the rotating support, one end of the turntable is hinged with a rotary cylinder, and the other end is connected to the fixed end of the lifting member, the bottom of the rotary support and the fixed end of the rotary cylinder are both connected to the sliding frame, and the turntable rotates relative to the rotary support through the extension and retraction of the rotary cylinder to drive the cutter disc assembly to swing left and right.

[0009] In one possible implementation, the tunnel boring machine provided in the present application has a cutterhead assembly including a cutterhead support and a cutterhead, wherein the cutterhead has a longitudinally arranged cutterhead frame and a plurality of roller cutters mounted on the cutterhead frame, the roller cutters are mounted on the cutterhead support via the cutterhead frame, and the roller cutters are used for breaking rocks.

[0010] In one possible implementation, the tunnel boring machine provided in the present application also includes a front support mechanism, which is arranged in pairs and is respectively located on both sides of the front end of the walking mechanism, and the bottom of the front support mechanism is connected to the chassis; the front support mechanism includes a sliding base, a second sliding assembly and a first anchor bolter, and the first anchor bolter is installed on the sliding base through the second sliding assembly, and the sliding base and the second sliding assembly drive the first anchor bolter to slide and swing at multiple angles.

[0011] In one possible implementation, the tunnel boring machine provided by the present application, the second sliding assembly includes a first driving member, a second driving member and a rotary reducer, the output end of the first driving member is connected to the second driving member to drive the first anchor bolter to move toward or away from the walking mechanism, the output end of the rotary reducer is connected to the first anchor bolter, and is used to drive the first anchor bolter to rotate relative to the cutting surface, and the output end of the second driving member is connected to the first anchor bolter through the rotary reducer to drive the first anchor bolter to move up and down relative to the walking mechanism.

[0012] In one possible implementation, the tunnel boring machine provided in the present application also includes a rear support mechanism, which includes a first support platform, a third sliding assembly and a second anchor bolter arranged in a pair, the first support platform is connected to the second support platform of the walking mechanism, the second anchor bolter is symmetrically installed on the first support platform through the third sliding assembly, and the first support platform and the third sliding assembly drive the second anchor bolter to slide and swing at multiple angles.

[0013] In one possible implementation, the tunnel boring machine provided in the present application, the third sliding assembly includes a third driving member and a swing motor, the output end of the swing motor is connected to the second anchor bolter, and is used to drive the second anchor bolter to swing relative to the cutting surface, and the output end of the third driving member is connected to the second anchor bolter through the swing motor to drive the second anchor bolter to slide downward relative to the first support platform.

[0014] In one possible implementation, the tunnel boring machine provided in the present application has a walking mechanism including a symmetrically arranged chassis frame and track plates installed on the chassis frame, at least one pair of first support members is arranged between the symmetrically arranged chassis frames, and the paired first support members support upward; the second support platform is connected to the chassis frame, and the second support platform has paired second support members, third support members and fourth support members, the second support members and the third support members support upward and downward, respectively, and the paired fourth support members support left and right, respectively.

[0015] In one possible implementation, the tunnel boring machine provided in the present application also includes a dust removal mechanism, which has a dust removal component and a dust removal fan. The dust removal component is installed at the front of the cutting mechanism. The dust removal component is used to spray foam and water mist onto the cutting surface to prevent dust generation, and the dust removal fan is used to absorb dust.

[0016] In one possible implementation, the tunnel boring machine provided in the present application also includes a loading mechanism and a conveying mechanism. The loading mechanism is located below the cutting mechanism and is slidably connected to the traveling mechanism. The loading mechanism is used to collect the material cut by the cutting mechanism. The conveying mechanism is connected to the loading mechanism through a pin shaft and is hinged to the traveling mechanism. The conveying mechanism is used to receive and transport the material collected by the loading mechanism.

[0017] The tunnel boring machine provided in the present application is provided with a cutting mechanism, and the cutting mechanism includes a boom and a cutter disc assembly, and the cutter disc assembly is used for breaking rocks. The boom is provided with a first sliding assembly, a slewing assembly and a lifting member, and the two ends of the slewing assembly are respectively connected to the first sliding assembly and the cutter disc assembly, so that when the first sliding assembly is started, the slewing assembly is driven to slide forward and backward, and the slewing assembly drives the cutter disc assembly to swing left and right. The two ends of the lifting member are respectively connected to the slewing assembly and the cutter disc assembly, and when the lifting member is started, the cutter disc assembly is driven to swing up and down. With such a design, the boom can adjust the cutter disc assembly at multiple angles, thereby improving the flexibility of the cutting mechanism, so as to enhance the cutting ability of the tunnel boring machine, and thus improve the tunnel boring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the structure of a tunnel boring machine provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a large boom in a tunnel boring machine provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of a cutterhead in a tunnel boring machine provided in an embodiment of the present application;

[0022] Figure 4 for Figure 1 Structural diagram of the middle and front support mechanism;

[0023] Figure 5 for Figure 4 A schematic structural diagram of the second sliding assembly;

[0024] Figure 6 for Figure 1 Structural diagram of the middle and rear support mechanism;

[0025] Figure 7 for Figure 6 A schematic diagram of the structure of the third sliding assembly;

[0026] Figure 8 for Figure 1 Structural diagram of the walking mechanism;

[0027] Fig. 9 A schematic diagram of the structure of a dust removal component in a tunnel boring machine provided in an embodiment of the present application;

[0028] Fig.10 A schematic diagram of the structure of a dust removal fan in a tunnel boring machine provided in an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 100: cutting mechanism;

[0031] 110: big arm frame; 111: first sliding assembly; 1111: slotting cylinder; 1112: guide column; 1113: sliding frame; 112: slewing assembly; 1121: slewing support; 1122: slewing table; 1123: slewing cylinder; 113: lifting member;

[0032] 120: cutter head assembly; 121: cutter head bracket; 122: cutter head; 1221: cutter head bracket; 1222: hob;

[0033] 200: walking mechanism;

[0034] 210: second supporting platform;

[0035] 220: chassis frame;

[0036] 230: Track shoes;

[0037] 240: first support member;

[0038] 250: second supporting member;

[0039] 260: third support member;

[0040] 270: fourth support member;

[0041] 300: front support mechanism;

[0042] 310: sliding base;

[0043] 320: second sliding assembly; 321: first driving member; 322: second driving member; 323: rotary reducer;

[0044] 330: First bolter;

[0045] 400: rear support mechanism;

[0046] 410: first supporting platform;

[0047] 420: third sliding assembly; 421: third driving member; 422: swing motor;

[0048] 430: Second bolter;

[0049] 500: dust removal mechanism;

[0050] 510: dust removal parts;

[0051] 520: dust removal fan;

[0052] 600: loading mechanism;

[0053] 700: conveying mechanism.

[0054] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiment of the present application. Obviously, the described embodiment is only a part of the embodiment of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0056] It should be noted that in the description of the embodiments of the present application, terms such as "upper", "lower", "inside" and "outside" indicating orientation or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0057] In addition, it should be noted that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0058] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] The increasing demand for underground engineering construction has led to the rapid development of tunnel boring machine technology. A tunnel boring machine is a mechanical device used for tunnel excavation. It can cut, dig or drill holes in underground tunnels to create a required space or passage. Compared with traditional construction methods such as drilling and blasting, tunnel boring machines have higher safety and less impact on the surrounding environment.

[0060] Existing tunnel boring machines are mainly composed of a cutting device and a traveling mechanism. As the traveling mechanism moves forward, it drives the cutting mechanism forward to break the rock. However, the current tunnel boring machines have insufficient cutting capacity and insufficient flexibility of the cutting device, resulting in low tunneling efficiency in hard rock tunnel conditions.

[0061] In view of this, the tunnel boring machine provided in the present application is provided with a cutting mechanism, and the cutting mechanism includes a boom and a cutter disc assembly, and the cutter disc assembly is used for breaking rocks. The boom is provided with a first sliding assembly, a rotating assembly and a lifting member, and the two ends of the rotating assembly are respectively connected to the first sliding assembly and the cutter disc assembly, so that when the first sliding assembly is started, the rotating assembly drives the cutter disc assembly to slide forward and backward, and the rotating assembly drives the cutter disc assembly to slide forward and backward. The two ends of the lifting member are respectively connected to the rotating assembly and the cutter disc assembly, and when the lifting member is started, the cutter disc assembly is driven to swing up and down. With such a design, the boom can adjust the cutter disc assembly at multiple angles, thereby improving the flexibility of the cutting mechanism, so as to enhance the cutting ability of the tunnel boring machine, and thus improve the tunnel boring efficiency.

[0062] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0063] Figure 1 A schematic diagram of the structure of a tunnel boring machine provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a large boom in a tunnel boring machine provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a cutterhead in a tunnel boring machine provided in an embodiment of the present application; Figure 8 for Figure 1 Schematic diagram of the structure of the walking mechanism.

[0064] See also Figures 1 to 3The present application provides a tunnel boring machine, including a cutting mechanism 100 and a traveling mechanism 200, wherein the cutting mechanism 100 includes a boom 110 and a cutter head assembly 120, wherein the boom 110 includes a first sliding assembly 111, a slewing assembly 112 and a lifting member 113, wherein one end of the first sliding assembly 111 is connected to the chassis of the traveling mechanism 200, and the other end is connected to the slewing assembly 112, and one end of the slewing assembly 112 away from the first sliding assembly 111 is hinged to the cutter head assembly 120 When the first sliding component 111 is started, the rotating component 112 is driven to slide forward and backward, so that the rotating component 112 drives the cutter disc component 120 to slide forward and backward; the end of the rotating component 112 away from the first sliding component 111 is also hinged to the fixed end of the lifting member 113, and the driving end of the lifting member 113 is hinged to the cutter disc component 120. When the rotating component 112 is started, the cutter disc component 120 is driven to rotate left and right, and the extension of the lifting member 113 drives the cutter disc component 120 to swing up and down.

[0065] In the present application, the traveling mechanism 200 provides the tunnel boring machine with mobility and drives the whole machine forward in the tunnel or mine. The cutting mechanism 100 is mainly used to cut and crush materials such as rocks and soil. The cutting mechanism 100 supports and drives the cutterhead assembly 120 to operate by setting a large boom 110.

[0066] Among them, in order to realize the driving of the cutter disc assembly 120 to perform cutting operations at different positions and angles, the boom 110 is provided with a first sliding assembly 111, a rotating assembly 112 and a lifting member 113. The first sliding assembly 111, the rotating assembly 112 and the lifting member 113 are respectively used to drive the cutter disc assembly 120 to rotate forward and backward, left and right, and up and down relative to the walking mechanism 200.

[0067] Specifically, the two ends of the first sliding component 111 are respectively connected to the walking mechanism 200 and the rotating component 112, and the end of the rotating component 112 away from the first sliding component 111 is connected to the cutter disc component 120. Therefore, when the first sliding component 111 is started, the rotating component 112 is driven to slide forward and backward relative to the walking mechanism 200. When the rotating component 112 slides forward and backward, it also drives the cutter disc component 120 to slide forward and backward relative to the walking mechanism 200. That is to say, when the first sliding component 111 slides forward, the cutter disc component 120 is driven to slide forward, so as to realize the non-moving machine feeding of the tunnel boring machine and better adapt to different terrains and excavation requirements.

[0068] Furthermore, when the slewing assembly 112 is started, it swings left and right relative to the traveling mechanism 200 to drive the cutterhead assembly 120 to swing left and right relative to the traveling mechanism 200. When the lifting member 113 is started, the extension of the lifting member 113 drives the cutterhead assembly 120 to swing up and down relative to the traveling mechanism 200. Through the coordinated work of the first sliding assembly 111, the slewing assembly 112 and the lifting member 113, the tunnel boring machine can adapt to different excavation depths and angles, realizing flexible tunneling of the tunnel boring machine, effectively reducing the frequency of moving the tunnel boring machine, and improving tunneling efficiency.

[0069] It can be understood that the lifting member 113 is a lifting cylinder. Of course, the lifting member 113 can also be other structures that enable the cutter head assembly 120 to swing up and down relative to the walking mechanism 200, and this embodiment is not limited here.

[0070] See also Figure 2 In the embodiment of the present application, the first sliding assembly 111 includes a groove cylinder 1111, a guide column 1112 and a sliding frame 1113 mounted on the guide column 1112. The driving end of the groove cylinder 1111 is connected to the sliding frame 1113, and the groove cylinder 1111 is used to drive the sliding frame 1113 to slide relative to the guide column 1112; the rotating assembly 112 includes a rotating support 1121 and a turntable 1122 installed on the rotating support 1121. One end of the turntable 1122 is hinged with a rotating cylinder 1123, and the other end is connected to the fixed end of the lifting member 113. The bottom of the rotating support 1121 and the fixed end of the rotating cylinder 1123 are both connected to the sliding frame 1113. The turntable 1122 rotates relative to the rotating support 1121 through the extension and retraction of the rotating cylinder 1123 to drive the cutter disc assembly 120 to swing left and right.

[0071] In specific implementation, in order to realize the function of the first sliding component 111 sliding forward and backward relative to the walking mechanism 200, the first sliding component 111 includes a groove cylinder 1111, a guide column 1112 and a sliding frame 1113 mounted on the guide column 1112. The groove cylinder 1111 serves as a power source, and drives the sliding frame 1113 to slide on the guide column 1112 through its telescopic action, so that the tunnel boring machine can accurately control the front and rear positions of the cutting mechanism 100 to adapt to different excavation depths and working requirements.

[0072] The guide column 1112 provides a stable sliding track for the sliding frame 1113, ensuring the stability and accuracy of the sliding frame 1113 during movement.

[0073] Furthermore, in order to realize the function of the slewing assembly 112 to swing left and right relative to the walking mechanism 200, the slewing assembly 112 includes a slewing support 1121 and a turntable 1122 installed on the slewing support 1121. The slewing support 1121 provides a stable support platform for the turntable 1122, ensuring the stability and reliability of the turntable 1122 during the rotation process.

[0074] In order to drive the turntable 1122 to rotate relative to the slewing support 1121, the turntable 1122 is hinged with a slewing cylinder 1123. The slewing cylinder 1123 serves as a power source for driving the turntable 1122 to rotate, and the cutter head assembly 120 can swing left and right through its telescopic action.

[0075] See also Figure 2 and Figure 3 In the embodiment of the present application, the cutter disc assembly 120 includes a cutter disc support 121 and a cutter disc 122. The cutter disc 122 has a longitudinally arranged cutter disc frame 1221 and a plurality of roller cutters 1222 mounted on the cutter disc frame 1221. The roller cutters 1222 are mounted on the cutter disc support 121 through the cutter disc frame 1221, and the roller cutters 1222 are used for breaking rocks.

[0076] In some embodiments, the cutterhead bracket 121 serves as a supporting structure for the entire cutterhead assembly 120 and is capable of withstanding the reaction force generated by the roller cutter 1222 during the rock breaking process, thereby ensuring the continuity and safety of the tunnel boring machine operation.

[0077] Specifically, the cutter head frame 1221 is longitudinally mounted on the cutter head bracket 121, providing a stable mounting platform for the roller cutter 1222, ensuring that the roller cutter 1222 can maintain a stable posture and position during high-speed rotation and rock breaking, while facilitating the collection of materials such as crushed rock and soil.

[0078] Furthermore, the roller cutters 1222 are evenly distributed on the outer surface of the cutterhead frame 1221. When working, the cutterhead 122 rotates as a whole, and the roller cutters 1222 in contact with the tunnel face destroy the rock structure of the tunnel face to achieve the purpose of rock breaking. By utilizing the flexibility of the large boom 110 and the multi-angle cutting characteristics of the cutterhead 122, when excavating non-circular hard rock tunnels such as rectangular ones, the tunnel boring machine has the advantages of free excavation, light weight, and economic efficiency.

[0079] Figure 4 for Figure 1 Structural diagram of the middle and front support mechanism; Figure 5 for Figure 4 Schematic diagram of the structure of the second sliding component.

[0080] See also Figure 4 and Figure 5In the embodiment of the present application, it also includes a front support mechanism 300, which is arranged in pairs and is respectively located on both sides of the front end of the walking mechanism 200, and the bottom of the front support mechanism 300 is connected to the chassis; the front support mechanism 300 includes a sliding base 310, a second sliding assembly 320 and a first anchor machine 330, and the first anchor machine 330 is installed on the sliding base 310 through the second sliding assembly 320, and the sliding base 310 and the second sliding assembly 320 drive the first anchor machine 330 to slide and swing at multiple angles.

[0081] It can be understood that the function of the front support mechanism 300 is to reinforce and support the surrounding rock to prevent the surrounding rock from collapsing or deforming, and the first anchor bolter 330 is used to perform timely anchor support operations during the excavation process.

[0082] Furthermore, in order to improve the accuracy and stability of the first anchor bolter 330 during operation and realize full-section support of the first anchor bolter 330, the first anchor bolter 330 is installed on the sliding base 310 through the second sliding assembly 320, and the sliding base 310 drives the first anchor bolter 330 to slide forward and backward relative to the walking mechanism 200, and the sliding of the second sliding assembly 320 drives the first anchor bolter 330 to rotate and move left and right or up and down relative to the walking mechanism 200. Therefore, the flexibility of the first anchor bolter 330 is improved through the sliding base 310 and the second sliding assembly 320, and the surrounding rock is better supported, so that the first anchor bolter 330 can realize synchronous support during excavation and advance support when not excavating, thereby improving excavation efficiency, reducing the intensity of manual support, and reducing the number of personnel on the excavation working face.

[0083] See also Figure 5 In the embodiment of the present application, the second sliding assembly 320 includes a first driving member 321, a second driving member 322 and a rotary reducer 323. The output end of the first driving member 321 is connected to the second driving member 322 to drive the first anchor machine 330 to move toward or away from the walking mechanism 200. The output end of the rotary reducer 323 is connected to the first anchor machine 330 to drive the first anchor machine 330 to rotate relative to the cutting surface. The output end of the second driving member 322 is connected to the first anchor machine 330 through the rotary reducer 323 to drive the first anchor machine 330 to move up and down relative to the walking mechanism 200.

[0084] In specific implementation, in order to realize the rotation of the first anchor bolter 330 and the left-right or up-and-down movement relative to the walking mechanism 200 , the second sliding assembly 320 is provided with a first driving member 321 , a second driving member 322 and a rotary reducer 323 .

[0085] The first driving member 321 may be a push cylinder, the output end of which is connected to the second driving member 322. When the push cylinder is started, the extension and retraction of the push cylinder drives the second driving member 322 to move, thereby driving the rotary reducer 323 to drive the first anchor bolter 330 to move toward or away from the traveling mechanism 200. Thus, the position of the first anchor bolter 330 relative to the supporting section is adjusted by the push cylinder, thereby improving the supporting effect of the first anchor bolter 330. Of course, the first driving member 321 may also be other structures capable of driving the first anchor bolter 330 to move toward or away from the traveling mechanism 200, which is not limited in this embodiment.

[0086] It can be understood that the output end of the rotary reducer 323 is connected to the first anchor bolter 330, and when the rotary reducer 323 is started, the rotary reducer 323 drives the first anchor bolter 330 to rotate relative to the cutting surface. That is, the rotary reducer 323 adjusts the angle of the side of the first anchor bolter 330 facing the cutting surface relative to the cutting surface, so that the first anchor bolter 330 better fits the cutting surface, thereby improving the support effect of the first anchor bolter 330.

[0087] Further, the second driving member 322 may be a lifting cylinder, the output end of which is connected to the first anchor bolter 330 via a rotary reducer 323, and the lifting cylinder is started, and the extension and retraction of the lifting cylinder drives the first anchor bolter 330 to move up and down relative to the traveling mechanism 200, thereby adjusting the position of the first anchor bolter 330 relative to the cutting surface through the lifting cylinder, so that the first anchor bolter 330 better fits the cutting surface, thereby improving the support effect of the first anchor bolter 330. Of course, the second driving member 322 may also be other structures capable of driving the first anchor bolter 330 to move up and down relative to the traveling mechanism 200, and this embodiment is not limited here.

[0088] Figure 6 for Figure 1 Structural diagram of the middle and rear support mechanism; Figure 7 for Figure 6 Schematic diagram of the structure of the third sliding component.

[0089] See also Figure 6 and Figure 7 In the embodiment of the present application, a rear support mechanism 400 is also included. The rear support mechanism 400 includes a first support platform 410, a third sliding assembly 420 and a second anchor machine 430 arranged in pairs. The first support platform 410 is connected to the second support platform 210 of the walking mechanism 200. The second anchor machine 430 is symmetrically installed on the first support platform 410 through the third sliding assembly 420. The first support platform 410 and the third sliding assembly 420 drive the second anchor machine 430 to slide and swing at multiple angles.

[0090] In the present application, the function of the rear support mechanism 400 is to reinforce and support the surrounding rock to prevent the surrounding rock from collapsing or deforming, and the second anchor bolter 430 is used to perform timely anchor support operations during the excavation process.

[0091] In specific implementation, in order to improve the accuracy and stability of the second anchor bolter 430 during operation and realize full-section support of the second anchor bolter 430, the second anchor bolter 430 is symmetrically installed on the first support platform 410 through the third sliding assembly 420. The sliding of the first support platform 410 drives the second anchor bolter 430 to slide forward and backward and left and right relative to the walking mechanism 200. The sliding of the third sliding assembly 420 drives the first anchor bolter 330 to rotate and move up and down relative to the walking mechanism 200. Thus, the flexibility of the second anchor bolter 430 is improved through the first support platform 410 and the third sliding assembly 420, so that the second anchor bolter 430 can realize synchronous support during excavation and advance support when not excavating, thereby improving excavation efficiency, reducing the intensity of manual support, and reducing the number of personnel on the excavation working face.

[0092] See also Figure 7 In the embodiment of the present application, the third sliding assembly 420 includes a third driving member 421 and a swing motor 422. The output end of the swing motor 422 is connected to the second anchor machine 430 to drive the second anchor machine 430 to swing relative to the cutting surface. The output end of the third driving member 421 is connected to the second anchor machine 430 through the swing motor 422 to drive the second anchor machine 430 to slide up and down relative to the first support platform 410.

[0093] In some embodiments, the output end of the swing motor 422 is connected to the second anchor machine 430, and the swing motor 422 is started. The swing motor 422 drives the second anchor machine 430 to swing relative to the cutting surface, that is, the angle of the side of the second anchor machine 430 facing the cutting surface relative to the cutting surface is adjusted by the swing motor 422, so that the second anchor machine 430 can better fit the cutting surface, thereby improving the support effect of the second anchor machine 430.

[0094] It can be understood that the third driving member 421 can be a lifting cylinder, the output end of which is connected to the second anchor bolter 430 through the swing motor 422, and the lifting cylinder is started, and the extension and retraction of the lifting cylinder drives the second anchor bolter 430 to move up and down relative to the walking mechanism 200, thereby adjusting the position of the second anchor bolter 430 relative to the cutting surface through the lifting cylinder, so that the second anchor bolter 430 better fits the cutting surface, thereby improving the support effect of the second anchor bolter 430. Of course, the third driving member 421 can also be other structures that can drive the second anchor bolter 430 to move up and down relative to the walking mechanism 200, and this embodiment is not limited here.

[0095] See also Figure 8In the embodiment of the present application, the walking mechanism 200 includes a symmetrically arranged chassis frame 220 and a crawler shoe 230 installed on the chassis frame 220. At least one pair of first support members 240 is arranged between the symmetrically arranged chassis frames 220, and the paired first support members 240 support upward; the second support platform 210 is connected to the chassis frame 220, and the second support platform 210 has paired second support members 250, third support members 260 and fourth support members 270, the second support members 250 and the third support members 260 support upward and downward respectively, and the paired fourth support members 270 support left and right respectively.

[0096] In the present application, the walking mechanism 200 has walking and supporting functions. The walking mechanism 200 has a chassis frame 220 and a track shoe 230 installed on the chassis frame 220. It adopts a crawler chassis, has good grip and off-road capability, and can improve the environmental adaptability of the equipment.

[0097] Among them, through the support of the chassis frame 220, the walking mechanism 200 can firmly bear the weight of the tunnel boring machine and effectively disperse the pressure to prevent tilting or shaking during movement.

[0098] It can be understood that in order to realize the supporting function of the walking mechanism 200, the walking mechanism 200 is provided with a first support member 240, a second support member 250, a third support member 260 and a fourth support member 270. The first support member 240 is arranged in pairs between the chassis frame 220 to support the walking mechanism 200 upward, thereby further improving the stability and carrying capacity of the tunnel boring machine.

[0099] Furthermore, the second support member 250 and the third support member 260 support upward and downward respectively, thereby improving the vertical stability of the tunnel boring machine, and the fourth support members 270 arranged in pairs support leftward and rightward respectively, thereby improving the lateral stability of the tunnel boring machine.

[0100] It can be understood that, through the support of the first support member 240, the second support member 250, the third support member 260 and the fourth support member 270, the problem of vibration and retreat of the tunnel boring machine body during cutting hard rock can be effectively solved, the damage to the tunnel boring machine due to vibration can be reduced, and the service life of the tunnel boring machine can be increased.

[0101] Fig. 9 A schematic diagram of the structure of a dust removal component in a tunnel boring machine provided in an embodiment of the present application; Fig.10 A schematic diagram of the structure of a dust removal fan in a tunnel boring machine provided in an embodiment of the present application.

[0102] See also Fig. 9 and Fig.10In the embodiment of the present application, a dust removal mechanism 500 is also included. The dust removal mechanism 500 has a dust removal component 510 and a dust removal fan 520. The dust removal component 510 is installed at the front of the cutting mechanism 100. The dust removal component 510 is used to spray foam and water mist onto the cutting surface to prevent dust generation. The dust removal fan 520 is used to absorb dust.

[0103] When the cutting work is in progress, the dust removal component 510 is started, and the dust removal component 510 will spray foam and water mist onto the cutting surface. These foams and water mist will wrap up the dust particles that are about to be generated and prevent the dust from diffusing into the air. Thus, the dust generation is significantly reduced through the dust removal component 510, thereby reducing the harm to on-site construction personnel and protecting the surrounding environment.

[0104] Furthermore, the dust removal fan 520 is used to absorb and remove the dust that has been generated. The dust removal fan 520 can be installed on the tunnel boring machine, or it can be separately set in the tunnel behind the tunnel boring machine, so as to effectively absorb the dust at the construction site. When the dust removal fan 520 is started, the dust removal fan 520 will generate a strong suction force to suck the dust particles in the air into the interior of the dust removal fan 520, reduce the dust content, and improve the quality of the working environment.

[0105] See also Figure 1 In the embodiment of the present application, it also includes a loading mechanism 600 and a conveying mechanism 700. The loading mechanism 600 is located below the cutting mechanism 100 and is slidably connected to the traveling mechanism 200. The loading mechanism 600 is used to collect the materials cut by the cutting mechanism 100; the conveying mechanism 700 is connected to the loading mechanism 600 through a pin shaft and is hinged to the traveling mechanism 200. The conveying mechanism 700 is used to receive and transport the materials collected by the loading mechanism 600.

[0106] In specific implementation, the loading mechanism 600 is located below the cutting mechanism 100 and is slidably connected to the traveling mechanism 200. With such a design, the loading mechanism 600 can flexibly follow the movement of the cutting mechanism 100 and collect the cut materials in real time. The loading mechanism 600 collects the materials to the conveying mechanism 700 through the rotation of the star wheel, which can effectively solve the problem of material blockage. At the same time, the loading mechanism 600 adopts a retractable door panel to solve the problem of coal leakage when loading in lanes of different widths. The efficient collection capacity of the loading mechanism 600 not only reduces the scattering and waste of materials, but also reduces the difficulty and cost of cleaning the site. In addition, the loading mechanism 600 is slidably connected to the traveling mechanism 200, so that the loading mechanism 600 can adapt to different terrains and working environments, ensuring the smooth progress of construction.

[0107] In some embodiments, the conveying mechanism 700 adopts a segmented design, consisting of front, middle and rear scrapers, and each part can be disassembled and repaired separately, which is convenient for maintenance and reduces maintenance costs, ensuring real-time transportation of materials. The conveying mechanism 700 is connected to the loading mechanism 600 through a pin shaft and is hinged to the walking mechanism 200, so that the conveying mechanism 700 can stably receive the materials collected by the loading mechanism 600 and transport them to the designated location.

[0108] In summary, the tunnel boring machine provided by the present application is provided with a cutting mechanism 100, and the cutting mechanism 100 includes a boom 110 and a cutter head assembly 120, and the cutter head assembly 120 is used for breaking rocks. The boom 110 is provided with a first sliding assembly 111, a rotating assembly 112 and a lifting member 113, and the two ends of the rotating assembly 112 are respectively connected to the first sliding assembly 111 and the cutter head assembly 120, so that when the first sliding assembly 111 is started, the rotating assembly 112 is driven to slide forward and backward, and the rotating assembly 112 drives the cutter head assembly 120 to slide forward and backward. The two ends of the lifting member 113 are respectively connected to the rotating assembly 112 and the cutter head assembly 120, and when the lifting member 113 is started, the cutter head assembly 120 is driven to swing up and down. With such a design, the boom 110 can adjust the cutter head assembly 120 at multiple angles, thereby improving the flexibility of the cutting mechanism 100, so as to improve the cutting ability of the tunnel boring machine, and thus improve the tunneling efficiency.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tunnel boring machine, characterized in that: The cutting mechanism (100) comprises a cutting mechanism (100) and a walking mechanism (200), wherein the cutting mechanism (100) comprises a large arm frame (110) and a cutter disc assembly (120), wherein the large arm frame (110) comprises a first sliding assembly (111), a rotating assembly (112) and a lifting member (113), wherein one end of the first sliding assembly (111) is connected to a chassis of the walking mechanism (200), and the other end is connected to the rotating assembly (112), and one end of the rotating assembly (112) away from the first sliding assembly (111) is hinged to the cutter disc assembly (120), and when the first sliding assembly (111) is started, the rotating assembly (112) is driven to slide forward and backward, so that the rotating assembly (112) drives the cutter disc assembly (120) to slide forward and backward; One end of the rotating assembly (112) away from the first sliding assembly (111) is also hinged to the fixed end of the lifting member (113), and the driving end of the lifting member (113) is hinged to the cutter disc assembly (120). When the rotating assembly (112) is started, it drives the cutter disc assembly (120) to rotate left and right, and the extension and retraction of the lifting member (113) drives the cutter disc assembly (120) to swing up and down.

2. The tunnel boring machine according to claim 1, characterized in that: The first sliding assembly (111) comprises a groove cylinder (1111), a guide column (1112) and a sliding frame (1113) sleeved on the guide column (1112); a driving end of the groove cylinder (1111) is connected to the sliding frame (1113); and the groove cylinder (1111) is used to drive the sliding frame (1113) to slide relative to the guide column (1112); The rotary assembly (112) comprises a rotary support (1121) and a rotary table (1122) mounted on the rotary support (1121); one end of the rotary table (1122) is hinged with a rotary cylinder (1123), and the other end is connected to the fixed end of the lifting member (113); the bottom of the rotary support (1121) and the fixed end of the rotary cylinder (1123) are both connected to the sliding frame (1113); the rotary table (1122) rotates relative to the rotary support (1121) through the extension and retraction of the rotary cylinder (1123), so as to drive the cutter disc assembly (120) to rotate left and right.

3. The tunnel boring machine according to claim 2, characterized in that: The cutterhead assembly (120) comprises a cutterhead support (121) and a cutterhead (122); the cutterhead (122) comprises a longitudinally arranged cutterhead frame (1221) and a plurality of roller cutters (1222) mounted on the cutterhead frame (1221); the roller cutters (1222) are mounted on the cutterhead support (121) via the cutterhead frame (1221); and the roller cutters (1222) are used for breaking rocks.

4. The tunnel boring machine according to claim 3, characterized in that: It also includes a front support mechanism (300), which is arranged in pairs and is respectively located at two sides of the front end of the walking mechanism (200), and the bottom of the front support mechanism (300) is connected to the chassis; The front support mechanism (300) comprises a sliding base (310), a second sliding assembly (320) and a first anchor bolter (330); the first anchor bolter (330) is installed on the sliding base (310) via the second sliding assembly (320); the sliding base (310) and the second sliding assembly (320) drive the first anchor bolter (330) to slide and swing at multiple angles.

5. The tunnel boring machine according to claim 4, characterized in that: The second sliding assembly (320) includes a first driving member (321), a second driving member (322) and a rotary reducer (323); the output end of the first driving member (321) is connected to the second driving member (322) to drive the first anchor machine (330) to move toward or away from the walking mechanism (200); the output end of the rotary reducer (323) is connected to the first anchor machine (330) to drive the first anchor machine (330) to rotate relative to the cutting surface; the output end of the second driving member (322) is connected to the first anchor machine (330) through the rotary reducer (323) to drive the first anchor machine (330) to move up and down relative to the walking mechanism (200).

6. The tunnel boring machine according to claim 5, characterized in that: It also includes a rear support mechanism (400), which includes a first support platform (410), a third sliding assembly (420) and a second anchor machine (430) arranged in a pair, the first support platform (410) is connected to the second support platform (210) of the walking mechanism (200), and the second anchor machine (430) is symmetrically installed on the first support platform (410) through the third sliding assembly (420), and the first support platform (410) and the third sliding assembly (420) drive the second anchor machine (430) to slide and swing at multiple angles.

7. The tunnel boring machine according to claim 6, characterized in that: The third sliding assembly (420) includes a third driving member (421) and a swing motor (422), wherein the output end of the swing motor (422) is connected to the second anchor machine (430) for driving the second anchor machine (430) to swing relative to the cutting surface, and the output end of the third driving member (421) is connected to the second anchor machine (430) via the swing motor (422) for driving the second anchor machine (430) to slide up and down relative to the first support platform (410).

8. The tunnel boring machine according to claim 6, characterized in that: The walking mechanism (200) comprises a symmetrically arranged chassis frame (220) and a track shoe (230) mounted on the chassis frame (220), at least one pair of first support members (240) being arranged between the symmetrically arranged chassis frames (220), and the first support members (240) arranged in pairs are supported upward; The second supporting platform (210) is connected to the chassis frame (220), and the second supporting platform (210) has a second supporting member (250), a third supporting member (260) and a fourth supporting member (270) arranged in pairs, the second supporting member (250) and the third supporting member (260) respectively support upward and downward, and the fourth supporting member (270) arranged in pairs respectively support leftward and rightward.

9. The tunnel boring machine according to claim 7, characterized in that: It also includes a dust removal mechanism (500), the dust removal mechanism (500) having a dust removal component (510) and a dust removal fan (520), the dust removal component (510) being installed at the front of the cutting mechanism (100), the dust removal component (510) being used to spray foam and water mist onto the cutting surface to prevent dust generation, and the dust removal fan (520) being used to absorb dust.

10. The tunnel boring machine according to any one of claims 1 to 9, characterized in that: It also includes a loading mechanism (600) and a conveying mechanism (700), wherein the loading mechanism (600) is located below the cutting mechanism (100) and is slidably connected to the walking mechanism (200), and the loading mechanism (600) is used to collect the materials cut by the cutting mechanism (100); The conveying mechanism (700) is connected to the loading mechanism (600) via a pin shaft and is hinged to the walking mechanism (200). The conveying mechanism (700) is used to receive and transport the materials collected by the loading mechanism (600).

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