Cutter bucket equipment and heading machine

Abstract

The invention provides cutterhead bucket equipment and a heading machine, relates to the technical field of shield tunneling machines, and aims to solve the problems that in the prior art, after cutterhead expanding excavation, muck in an edge expanding excavation area cannot be well cleaned, and a cutterhead is prone to damage. The cutterhead bucket equipment comprises a fixed base, a driving assembly, a slag stopping assembly and a bucket assembly. The driving assembly is connected to the fixed base and provided with a driving end, the slag stopping assembly is connected to the driving end, the bucket assembly is connected to the side, away from the driving end, of the slag stopping assembly, and the bucket assembly is located at the tunneling end of the tunneling machine; when the cutterhead is in a normal excavation state and expanding excavation is needed; and when the cutterhead is in an expanding excavation state and normal excavation needs to be carried out, the slag stopping assembly is configured to drive the bucket assembly to retract inwards by a second preset stroke in the second direction. According to the application, the bucket assembly can automatically extend and retract in the cutter head, the slag removal efficiency of an edge expanding excavation area is improved during expanding excavation of the cutter head, and the damage to the cutter head is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of shield machines, and particularly to a cutter head bucket device and a tunneling machine. Background Art

[0002] Due to its great advantages in terms of economy, safety, and tunneling efficiency in rock formations, tunneling machines have received increasing attention from all walks of life and have been widely used in underground engineering construction such as railway tunnels, highway tunnels, water diversion tunnels, coal mine tunnels, and urban subway tunnels.

[0003] Before a tunneling machine turns, corrects its deviation, or replaces the outermost hob, it is necessary to expand the diameter of the tunnel and excavate it. At the same time, during the excavation process, the muck in the edge excavation area should be cleared. If it cannot be cleared in time, it is easy to exacerbate the wear of the hobs in the edge area, which will have a great impact on the excavation ability and construction efficiency of the tunneling machine, and at the same time increase the tool consumption cost.

[0004] Therefore, developing a bucket structure to improve the muck clearing efficiency in the edge excavation area, improve the excavation ability and construction efficiency of the tunneling machine, and reduce the tool consumption cost during excavation has become an urgent problem to be solved. Summary of the Invention

[0005] An embodiment of the present application provides a cutter head bucket device, which helps to improve the muck clearing efficiency in the edge excavation area during cutter head excavation, reduce the damage to the cutter head, and extend the service life of the cutter head.

[0006] To achieve the above object, an embodiment of the present application provides a cutter head bucket device, which is installed on the cutter head of a tunneling machine. The cutter head bucket device includes a fixed base, a driving component, a slag blocking component, and a bucket component;

[0007] The fixed base is used to be connected to the cutter head. The driving component is connected to the fixed base. The driving component has a driving end. The slag blocking component is connected to the driving end. The bucket component is connected to the side of the slag blocking component away from the driving end. The bucket component is located at the tunneling end of the tunneling machine;

[0008] When the cutter head is in a normal excavation state and needs to be expanded, the driving end of the driving component is configured to extend outward a first preset stroke in a first direction and drive the slag blocking component to move. The slag blocking component is configured to drive the bucket component to extend outward a first preset stroke in the first direction;

[0009] When the cutterhead is in the expansion state and normal excavation is required, the driving end of the driving assembly is configured to retract inwardly along the second direction by a second preset stroke and drive the slag blocking assembly to move, and the slag blocking assembly is configured to drive the bucket assembly to retract inwardly along the second direction by a second preset stroke;

[0010] The first direction and the second direction are opposite directions.

[0011] In a possible implementation, the driving assembly includes a driving sleeve and a driving member; the driving sleeve is connected to the fixed base;

[0012] The first end of the driving member is located in the driving sleeve, the second end of the driving member is inserted into the driving sleeve, the second end of the driving member is the driving end, and the slag blocking assembly is movably connected to the second end of the driving member;

[0013] When the cutter disc is in a normal excavation state and needs to be expanded, the driving member is configured to extend outwardly by a first preset stroke along a first direction; when the cutter disc is in an expanded excavation state and needs to be normal excavated, the driving member is configured to retract inwardly by a second preset stroke along a second direction.

[0014] In one possible implementation, the slag blocking assembly includes a slag blocking member, a connecting shaft and a connecting seat, the connecting seat is located in the cutter disc, the slag blocking member is connected to the connecting seat, and part of the structure of the slag blocking member is located on a side close to the bucket assembly; the second end of the driving member is connected to the connecting seat through the connecting shaft, and the bucket assembly is connected to a side of the connecting seat away from the driving end.

[0015] In a possible implementation, the slag blocking member includes a first slag blocking segment, a second slag blocking segment and a third slag blocking segment connected in sequence;

[0016] The second slag blocking section is located at a side close to the bucket assembly and connected to the second end of the driving member, and the first slag blocking section and the third slag blocking section are connected to both ends of the second slag blocking section in the length direction;

[0017] The first slag blocking section and the third slag blocking section respectively extend to the interior of the cutter disc and are attached to the inner wall of the cutter disc to prevent slag from entering the cutter disc.

[0018] In a possible implementation, the slag blocking member further includes a fourth slag blocking segment and a fifth slag blocking segment;

[0019] The fourth slag blocking section is connected to an end of the first slag blocking section away from the second slag blocking section, and the fifth slag blocking section is connected to an end of the third slag blocking section away from the second slag blocking section;

[0020] The first slag retaining section, the second slag retaining section, the third slag retaining section, the fourth slag retaining section, and the fifth slag retaining section together enclose a cavity, and at least part of the driving assembly is located in the cavity.

[0021] In a possible implementation manner, the bucket assembly includes a bucket base and a bucket member. The bucket base is connected to the slag retaining member, and the bucket member is connected to the bucket base.

[0022] In a possible implementation manner, a driving seal is provided between the driving sleeve and the driving member, and the driving sleeve and the driving member are sealed by the driving seal.

[0023] In a possible implementation manner, it further includes a disassembly, installation and inspection assembly. The cutter head has a disassembly and installation opening, which is opposite to the driving assembly, and the disassembly, installation and inspection assembly is detachably arranged at the disassembly and installation opening.

[0024] In a possible implementation manner, the disassembly, installation and inspection assembly includes a packaging member, a fastening member, and a detection port seal;

[0025] The packaging member is connected to the cutter head through the fastening member and encapsulates the disassembly and installation opening. The detection port seal is arranged between the packaging member and the cutter head, and the packaging member and the cutter head are sealed by the detection port seal.

[0026] In the second aspect of the embodiments of the present application, a tunneling machine is provided, which includes a shield body, a cutter head, and a cutter head bucket device. The cutter head is connected to the shield body, the cutter head is located at the tunneling end of the tunneling machine, and the cutter head bucket device is connected to the cutter head.

[0027] The cutter head bucket device and the tunneling machine provided by the embodiments of the present application can provide a supporting effect on other structures by including a fixed base, improving the stability of the cutter head bucket device during use; by including a driving assembly and a bucket assembly, the driving assembly drives the bucket assembly to automatically extend and retract in the cutter head body. When the cutter head performs excavation, the bucket assembly can improve the slag cleaning efficiency of the edge excavation area; by including a slag retaining assembly, the slag retaining assembly moves together with the telescopic movement of the bucket assembly, effectively controlling the size of the bucket slag outlet, and protecting the driving assembly at the same time, thereby reducing damage to the driving assembly and the cutter head, and extending the service life of the driving assembly and the cutter head.

[0028] The structure of the present application and its other application purposes and beneficial effects will become more obvious and understandable through the description of the preferred embodiments in conjunction with the drawings. Description of the Drawings

[0029] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is the front view of the cutter head of the cutter head bucket device provided by the embodiment of the present application in the normal excavation state;

[0031] Figure 2 It is the front view of the cutter head of the cutter head bucket device provided by the embodiment of the present application in the enlarged excavation state;

[0032] Figure 3 It is Figure 1 the cross-sectional view along the A-A direction in

[0033] Figure 4 It is Figure 2 the cross-sectional view along the B-B direction in

[0034] Explanation of reference numerals:

[0035] 100 - Fixed base;

[0036] 200 - Driving assembly; 210 - Driving sleeve; 220 - Driving member;

[0037] 300 - Slag retaining assembly; 310 - Slag retaining member; 311 - First slag retaining section; 312 - Second slag retaining section; 313 - Third slag retaining section; 314 - Fourth slag retaining section; 315 - Fifth slag retaining section; 316 - Cavity; 320 - Connecting shaft; 330 - Connecting seat;

[0038] 400 - Bucket assembly; 410 - Bucket base; 420 - Bucket member;

[0039] 500 - Driving seal;

[0040] 600 - Disassembly, inspection and assembly component; 610 - Encapsulation member; 620 - Fastening member; 630 - Inspection port seal;

[0041] 700 - Cutter head; 710 - Disassembly port. Detailed implementation manners

[0042] Before the tunneling machine turns, corrects deviation or replaces the outermost hob, it is necessary to expand the diameter of the tunnel for excavation. At the same time, during the excavation process, the slag in the edge excavation area should be cleaned up. If it cannot be cleaned up in time, it is easy to exacerbate the wear of the hobs in the edge area, which will have a great impact on the excavation ability and construction efficiency of the tunneling machine, and at the same time increase the tool consumption cost.

[0043] Based on the above technical problems, the embodiments of the present application provide a cutter head bucket device and a tunneling machine. By including a fixed base, it can provide a supporting effect for other structures and improve the stability of the cutter head bucket device during use; by including a driving component and a bucket component, the driving component drives the bucket component to automatically extend and retract within the cutter head body. When the cutter head is used for excavation, the bucket component can improve the slag cleaning efficiency of the edge excavation area; by including a slag blocking component, the slag blocking component moves along with the telescopic movement of the bucket component, effectively controlling the size of the slag outlet of the bucket, and at the same time protecting the driving component, thereby reducing the damage to the driving component and the cutter head, and extending the service life of the driving component and the cutter head.

[0044] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0045] The embodiments of the present application provide a tunneling machine, which is applied to a tunnel and constructs the tunnel strata. The tunneling machine at least includes a cutter head 700 and a shield body. Herein, "at least includes" means that in addition to including a cutter head 700 and a shield body, the tunneling machine may further include other structures such as a slag discharging device, a screw conveyor, and a rear trailer. The embodiments of the present application will not elaborate too much on this.

[0046] The shield body includes a front shield, a middle shield, and a tail shield, and the middle shield is connected between the front shield and the tail shield. Specifically, the front shield is located on the side of the tunneling machine close to the tunneling end, and the tail shield is located on the side of the tunneling machine far from the tunneling end. The tunneling end is also called the excavation end, which is located at the very front of the tunneling machine. The cutter head 700 is connected to the front shield, and the cutter head 700 is located at the tunneling end of the tunneling machine, and the cutter head 700 is used for excavating the tunnel strata.

[0047] During the excavation process, the cutter head 700 needs to clean the muck in the excavation edge area to avoid the wear of the hob of the cutter head 700 in the edge area. Therefore, in the embodiments of the present application, a cutter head bucket device is provided, which is installed on the cutter head 700 and is used for cleaning the muck in the excavation edge area.

[0048] Refer to Figures 1 to 4 As shown, the embodiments of the present application provide a cutter head bucket device, which includes a fixed base 100, a driving component 200, a slag blocking component 300, and a bucket component 400.

[0049] In the embodiment of the present application, the fixed base 100 is used to be connected to the cutter head 700. The driving assembly 200 is connected to the fixed base 100. The driving assembly 200 has a driving end. The slag blocking assembly 300 is connected to the driving end. The bucket assembly 400 is connected to the side of the slag blocking assembly 300 away from the driving end. The bucket assembly 400 is located at the tunneling end of the tunneling machine.

[0050] In this embodiment, the structure of the fixed base 100 is not limited. Exemplarily, the fixed base 100 can be a fixed frame. The shape of the fixed frame can be a square frame, a circular frame, etc. This embodiment does not limit this, and it can be specifically set according to actual needs. In addition, the connection method between the fixed base 100 and the cutter head 700 is not limited. Since the fixed base 100 is connected to the cutter head 700, the structure of the whole device is relatively compact, which is convenient for operation in a narrow space.

[0051] In this embodiment, the driving assembly 200 is connected to the fixed base 100. In this way, the overall design composed of the driving assembly 200 and the fixed base 100 can withstand greater working pressure and mechanical wear, improve the durability of the equipment, and reduce the maintenance frequency and maintenance cost. Among them, the configuration of the driving assembly 200 enables the equipment to be dynamically adjusted according to work needs, and can realize multiple working modes, such as excavation, slag shoveling, etc., providing greater operation flexibility.

[0052] In this embodiment, the design of the slag blocking assembly 300 can effectively control the flow of soil, reduce the overflow of muck, improve the cleanliness of the excavation process, and reduce the workload of subsequent cleaning; in addition, by connecting the bucket assembly 400 to the slag blocking assembly 300, the design of the slag blocking assembly 300 can effectively guide and control the work of the bucket assembly 400, ensure that the soil can be reasonably processed during the excavation process, reduce the overflow and waste of muck, and improve the cleanliness of the construction.

[0053] The working process of the cutter head bucket device provided in this embodiment is as follows:

[0054] The extending process of the cutter head bucket device: Refer to Figure 1 and Figure 3 As shown, when the cutter head 700 is in the normal excavation state and excavation is required, the driving end of the driving assembly 200 is configured to extend a first preset stroke outward along the first direction according to the excavation requirement, and drive the slag blocking assembly 300 to move. The slag blocking assembly 300 is configured to drive the bucket assembly 400 to extend a first preset stroke outward along the first direction, completing the extending process of the bucket structure.

[0055] The retracting process of the cutter head bucket device: Refer to Figure 2 and Figure 4As shown, when the cutter head 700 is in the over-excavation state and normal excavation is required, the driving end of the driving assembly 200 is configured to retract inward by a second preset stroke along the second direction according to the normal excavation requirement, and drive the slag retaining assembly 300 to move. The slag retaining assembly 300 is configured to drive the bucket assembly 400 to retract inward by a second preset stroke along the second direction, completing the retraction process of the bucket structure.

[0056] Wherein, the first direction and the second direction are opposite directions.

[0057] Exemplarily, when the cutter head 700 is in the normal excavation state, the entire bucket structure is as Figure 1 shown. When the cutter head 700 is in the over-excavation state, the entire bucket structure is as Figure 2 shown.

[0058] Exemplarily, the first direction can be referred to as the direction of arrow A1 shown in Figures 1 to 4 , and the second direction can be referred to as the direction of arrow A2 shown in Figures 1 to 4 . The first preset stroke and the second preset stroke can be referred to as the L shown in Figure 2 and Figure 4 . This embodiment does not make any limitations in this regard.

[0059] Therefore, for the cutter head bucket device provided in this embodiment, through the telescopic design of the driving assembly 200, the cutter head 700 can provide the required excavation force and depth under different operating conditions. Moreover, the device can quickly switch between the normal excavation state and the over-excavation state, providing greater operation flexibility. By changing the movement direction of the driving assembly 200, it can adapt to different excavation requirements, improve the operation efficiency, and improve the slag cleaning efficiency of the edge over-excavation area when the cutter head 700 is over-excavating.

[0060] In a possible implementation manner, referring to Figure 2 and Figure 4 shown, the driving assembly 200 includes a driving sleeve 210 and a driving member 220; the driving sleeve 210 is connected to the fixed base 100. The first end of the driving member 220 is located in the driving sleeve 210, and the second end of the driving member 220 passes through and is telescopically connected to the driving sleeve 210. The second end of the driving member 220 is the driving end, and the slag retaining assembly 300 is movably connected to the second end of the driving member 220.

[0061] When the cutter head 700 is in the normal excavation state and over-excavation is required, the driving member 220 is configured to extend outward by a first preset stroke along the first direction; when the cutter head 700 is in the over-excavation state and normal excavation is required, the driving member 220 is configured to retract inward by a second preset stroke along the second direction.

[0062] Among them, the connection between the drive sleeve 210 and the fixed base 100 provides stable support, so that the movement of the drive member 220 can be effectively transmitted to the bucket assembly 400, thereby achieving fast and powerful excavation capabilities; in addition, the drive sleeve 210, as a supporting structure, can effectively reduce vibration and swing during the excavation process, thereby improving the stability and accuracy of the operation and reducing safety hazards caused by equipment instability.

[0063] The structure of the driving member 220 is not limited. For example, the driving member 220 may be a driving rod, and the driving sleeve 210 may be a guide rail sleeve. The driving rod is retracted in the guide rail sleeve to achieve the functions of controlling the stroke and correcting the deviation. It should be noted that the retractability of the driving member 220 allows the device to adjust the working length under different working conditions, thereby enhancing its adaptability and flexibility.

[0064] It should be noted that the driving assembly 200 used in this embodiment includes but is not limited to the driving sleeve 210 and the driving rod, and other structures that can realize the driving function belong to the protection scope of this application. For example, it can be realized by limited hydraulic driving.

[0065] In one possible implementation, referring to Figure 3 and Figure 4 As shown, the slag blocking assembly 300 may include a slag blocking member 310, a connecting shaft 320 and a connecting seat 330, the connecting seat 330 is located in the cutter disc 700, the slag blocking member 310 is connected to the connecting seat 330, and part of the structure of the slag blocking member 310 is located on a side close to the bucket assembly 400; the second end of the driving member 220 is connected to the connecting seat 330 through the connecting shaft 320, and the bucket assembly 400 is connected to the side of the connecting seat 330 away from the driving end.

[0066] Exemplarily, the slag blocking member 310 may be a slag blocking plate, and the connecting shaft 320 may be a rotating shaft, which is not limited in this embodiment.

[0067] Among them, during the operation of the slag blocking assembly 300, the slag blocking plate moves together with the bucket assembly 400 to control the size of the slag outlet of the bucket of the cutter disc 700. At the same time, it can protect the drive assembly 200 to prevent the slag from damaging the drive assembly 200, thereby ensuring the normal operation of the drive assembly 200 and extending the service life of the drive assembly 200.

[0068] In this way, the design of the slag stopper 310, the connecting shaft 320 and the connecting seat 330 realizes efficient integration in a limited space. This compact design helps to reduce the overall volume and weight of the equipment and improve operational flexibility. At the same time, it is more convenient for maintenance or replacement, which helps to reduce downtime and improve the overall operating efficiency of the equipment.

[0069] In a possible implementation, referring to Figure 3 As shown, the slag baffle 310 includes a first slag baffle section 311, a second slag baffle section 312, and a third slag baffle section 313 that are connected in sequence; among them, the second slag baffle section 312 is located on the side close to the bucket assembly 400 and is connected to the second end of the driving member 220, and the first slag baffle section 311 and the third slag baffle section 313 are connected to both ends of the second slag baffle section 312 in the length direction; among them, the first slag baffle section 311 and the third slag baffle section 313 respectively extend into the cutter head 700 and are attached to the inner wall of the cutter head 700 to block the soil from entering the cutter head 700.

[0070] In this embodiment, the slag baffle 310 is composed of a first slag baffle section 311, a second slag baffle section 312, and a third slag baffle section 313 that are connected in sequence. This structural design makes the overall slag baffle 310 more stable and can better withstand the pressure and impact of the soil; the first slag baffle section 311 and the third slag baffle section 313 extend into the cutter head 700 and are attached to the inner wall of the cutter head 700, which can effectively block the soil from entering the cutter head 700, thereby reducing the wear and blockage of the internal structure of the cutter head 700 by the soil and extending the service life of the cutter head 700.

[0071] In this embodiment, the second slag baffle section 312 is connected to the second end of the driving member 220. This connection method enables the slag baffle 310 to work in cooperation with the driving member 220, flexibly adjust the position and angle of the slag baffle 310 as needed, and improve the slag blocking effect.

[0072] In a possible implementation, referring to Figure 3 As shown, the slag baffle 310 may further include a fourth slag baffle section 314 and a fifth slag baffle section 315; the fourth slag baffle section 314 is connected to the end of the first slag baffle section 311 away from the second slag baffle section 312, and the fifth slag baffle section 315 is connected to the end of the third slag baffle section 313 away from the second slag baffle section 312; the first slag baffle section 311, the second slag baffle section 312, the third slag baffle section 313, the fourth slag baffle section 314, and the fifth slag baffle section 315 jointly enclose a cavity 316, and at least part of the driving assembly 200 is located in the cavity 316.

[0073] In this embodiment, after adding the fourth slag baffle section 314 and the fifth slag baffle section 315, on the one hand, the slag baffle 310 forms a multi-layer structure, further enhancing the ability to block the soil. Before the soil enters the cutter head 700, it needs to pass through multiple slag baffle sections, greatly reducing the possibility of the soil entering the cutter head 700; on the other hand, the design of the cavity 316 makes the slag baffle 310 form a relatively closed structure around the cutter head 700, which can more comprehensively block the soil and prevent the soil from entering the cutter head 700 from different directions.

[0074] In this embodiment, part of the driving component 200 is placed in the cavity 316. On the one hand, it can effectively prevent impurities such as muck and dust from entering the interior of the driving component 200, reduce the wear and faults of the driving component 200, and extend its service life. On the other hand, this design enables the driving component 200 to be closely combined with the slag baffle 310, making the overall structure more compact, reducing the volume and occupied space of the equipment, and improving the overall stability of the equipment. On the other hand, the cavity 316 structure isolates the driving component 200 from the external environment, reduces the interference of external factors on the driving component 200, and improves the operating stability of the equipment.

[0075] In this embodiment, the multi-section structure of the slag baffle 310 can be adjusted and optimized according to different working conditions. For example, by adjusting the length and angle of each slag baffle section, it can adapt to different cutter head 700 sizes and working environments. In addition, the design of the multi-layer slag baffle section enables the slag baffle 310 to better withstand pressure and impact when facing a large amount of muck and complex working conditions, improving the durability of the equipment.

[0076] Therefore, the design of the slag baffle 310 in this embodiment, through its unique structure and function, can effectively improve the muck blocking effect, protect the internal structure of the cutter head 700, and at the same time has good stability and adaptability, improving the operating efficiency and service life of the equipment.

[0077] In a possible implementation, as shown in Figures 1 to 4 the bucket assembly 400 includes a bucket base 410 and a bucket member 420. The bucket base 410 is connected to the slag baffle 310, and the bucket member 420 is connected to the bucket base 410.

[0078] Exemplarily, the bucket member 420 can be a slag shoveling tool, and the bucket base 410 can be a tool holder. This embodiment does not make any limitations in this regard.

[0079] In this embodiment, the bucket assembly 400 is connected to the slag baffle 310 to form an integrated structure. While blocking the slag, the bucket assembly 400 can directly clean and collect the muck intercepted by the slag baffle 310, reducing the secondary diffusion of the muck and improving the efficiency of muck cleaning. In addition, the slag baffle 310 moves together with the telescopic movement of the bucket structure, controls the size of the muck outlet of the cutter head 700, and at the same time protects the driving component 200.

[0080] In addition, the bucket member 420 is connected to the bucket base 410, and the bucket base 410 is connected to the slag baffle 310. This structure enables the slag blocking and slag shoveling actions to be coordinated. For example, during the construction of a shield machine, the slag baffle 310 can effectively block the muck from entering the interior of the cutter head 700, while the bucket assembly 400 can timely shovel up and transport away the muck accumulated near the slag baffle 310 to ensure the continuity of the construction process.

[0081] In this embodiment, the bucket base 410 is connected to the slag retaining member 310, providing additional support for the slag retaining member 310 and enhancing the structural stability of the entire device. Especially when dealing with a large amount of muck, the bucket base 410 can disperse the pressure borne by the slag retaining member 310, preventing the slag retaining member 310 from deforming or being damaged due to muck accumulation.

[0082] In this embodiment, the bucket assembly 400 can be adjusted and optimized according to different working conditions. For example, the shape and size of the bucket member 420 can be customized according to the nature of the muck and construction requirements, improving the adaptability and flexibility of the device.

[0083] In a possible implementation, referring to Figure 3 and Figure 4 as shown, a driving seal 500 is provided between the driving sleeve 210 and the driving member 220, and the driving sleeve 210 and the driving member 220 are sealed by the driving seal 500.

[0084] Exemplarily, the driving seal 500 can be an annular sealing ring. For example, the sealing ring is sleeved between the outer wall of the driving rod and the inner wall of the driving sleeve 210. Alternatively, the driving seal 500 can be other structures with sealing functions, and this embodiment does not limit this.

[0085] In this way, on the one hand, the driving seal 500 can effectively prevent impurities such as dust, moisture, and muddy water from entering the interior of the driving sleeve 210 and the driving member 220, thereby protecting the internal components from contamination, reducing the wear between the driving member 220 and the driving sleeve 210, and thus extending the service life of the device; on the other hand, good sealing performance can reduce vibrations and noises caused by the intrusion of impurities, thereby improving the running smoothness and low-noise performance of the device; on the other hand, the seal works in cooperation with the driving member 220 to maintain the dynamic smoothness of the device and reduce running deviations; on the other hand, since the seal can effectively protect the internal components, it reduces failures caused by the intrusion of impurities or lubricant leakage, thereby reducing the maintenance frequency of the device. At the same time, the long-lasting performance of the seal extends the maintenance-free period of the device and reduces the downtime.

[0086] Exemplarily, the material of the seal can be a rubber material such as silicone rubber; or, polyurethane with high wear resistance requirements can also be selected. This embodiment does not limit this.

[0087] In a possible implementation, referring to Figure 3 and Figure 4 as shown, it can also include a disassembly and inspection assembly 600. The cutter head 700 has a disassembly opening 710, the disassembly opening 710 faces the driving assembly 200, and the disassembly and inspection assembly 600 is detachably arranged at the disassembly opening 710.

[0088] Exemplarily, the disassembly and assembly opening 710 may be an opening provided on the cutter head 700, and this embodiment does not limit this.

[0089] In this way, on the one hand, the disassembly and assembly inspection assembly 600 is detachably arranged at the disassembly and assembly opening 710 of the cutter head 700, enabling maintenance personnel to quickly disassemble and install the assembly, greatly shortening the maintenance time; on the other hand, the drive assembly 200 can be directly inspected through the disassembly and assembly opening 710 to timely discover potential problems and ensure the normal operation of the equipment; on yet another hand, during the operation of the equipment, the drive assembly 200 can be dynamically adjusted through the disassembly and assembly inspection assembly 600 to ensure the best performance of the equipment.

[0090] In a possible implementation manner, referring to Figure 3 and Figure 4 as shown, the disassembly and assembly inspection assembly 600 may include a sealing member 610, a fastening member 620, and a detection port sealing member 630; the sealing member 610 is connected to the cutter head 700 through the fastening member 620 and seals the disassembly and assembly opening 710, and the detection port sealing member 630 is arranged between the sealing member 610 and the cutter head 700, and the sealing member 610 and the cutter head 700 are sealed through the detection port sealing member 630.

[0091] Exemplarily, the sealing member 610 may be a sealing plate, the fastening member 620 may be a screw, and the detection port sealing member 630 may be a sealing ring. This embodiment does not limit this.

[0092] In this way, the sealing member 610 is connected to the cutter head 700 through the fastening member 620 and is sealed through the detection port sealing member 630, ensuring that the disassembly and assembly opening 710 will not leak during the operation of the equipment; the detection port sealing member 630 can effectively prevent mud, water, or other media from infiltrating into the interior of the cutter head 700, especially suitable for complex working conditions, such as the application of a tunnel boring machine in a high water pressure and high corrosive environment.

[0093] In addition, the detachable design of the sealing member 610 enables maintenance personnel to quickly open the disassembly and assembly opening 710 to inspect and maintain the drive assembly 200, greatly shortening the maintenance time. Moreover, this design is similar to a modular structure, facilitating tool replacement and inspection of the cutter head 700, further improving the maintenance efficiency.

[0094] The detailed working process of the cutter head bucket equipment provided by this application is as follows:

[0095] The extending process of the cutter head bucket equipment: Referring to Figure 1 and Figure 3As shown, when the cutter head 700 is in the normal excavation state and overexcavation is required, the guide rail sleeve is fixed on the fixed frame. The driving rod extends outward by a stroke of L in the guide rail sleeve according to the overexcavation requirement. At the same time, the connecting seat 330 and the slag baffle connected to the driving rod are pushed to extend outward, driving the bucket assembly 400 connected to the slag baffle to extend outward. After reaching the predetermined overexcavation amount H, the driving rod is stopped, and the process of the bucket structure extending is completed.

[0096] Retraction process of the cutter head bucket device: Refer to Figure 2 and Figure 4 As shown, when the cutter head 700 is in the overexcavation state and normal excavation is required, the guide rail sleeve is fixed on the fixed frame. The driving rod retracts inward according to the normal excavation requirement within the guide rail sleeve, and at the same time, the connecting seat 330 and the slag baffle connected to the driving rod are pulled to retract inward, driving the bucket assembly 400 connected to the slag baffle to retract inward. After returning to normal excavation, the driving rod is stopped, and the process of the bucket structure retracting is completed.

[0097] The cutter head bucket device and the tunneling machine provided by the embodiments of the present application, through the telescopic design of the driving assembly, the cutter head can provide the required excavation force and depth under different operating conditions. Moreover, the device can quickly switch between the normal excavation state and the overexcavation state, providing greater operation flexibility. By changing the movement direction of the driving assembly, it can adapt to different excavation requirements, improve the operation efficiency, and improve the slag cleaning efficiency of the edge overexcavation area during cutter head overexcavation.

[0098] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0099] In the description of the present application, it should be understood that the terms "including" and "having" used herein and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0100] Unless otherwise clearly defined and limited, the terms "installation", "connection", "attachment", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a direct connection or an indirect connection through an intermediate medium, and can be the connection inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them; although the technical solutions of this application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and 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 this application.

Claims

1. A cutterhead bucket device, characterized in that: A cutterhead installed on a roadheader, wherein the cutterhead bucket device comprises a fixed base, a drive assembly, a slag blocking assembly and a bucket assembly; The fixed base is used to be connected to the cutter head, the driving assembly is connected to the fixed base, the driving assembly has a driving end, the slag blocking assembly is connected to the driving end, the bucket assembly is connected to a side of the slag blocking assembly away from the driving end, and the bucket assembly is located at the excavation end of the tunneling machine; When the cutterhead is in a normal excavation state and needs to be expanded, the driving end of the driving assembly is configured to extend outwardly along a first direction by a first preset stroke and drive the slag blocking assembly to move, and the slag blocking assembly is configured to drive the bucket assembly to extend outwardly along the first direction by the first preset stroke; When the cutterhead is in an expanded excavation state and normal excavation is required, the driving end of the driving assembly is configured to retract inwardly along the second direction by a second preset stroke and drive the slag blocking assembly to move, and the slag blocking assembly is configured to drive the bucket assembly to retract inwardly along the second direction by the second preset stroke; The first direction and the second direction are opposite directions.

2. The cutter head bucket device according to claim 1, characterized in that: The driving assembly comprises a driving sleeve and a driving member; the driving sleeve is connected to the fixed base; The first end of the driving member is located in the driving sleeve, the second end of the driving member is passed through and telescopically connected to the driving sleeve, the second end of the driving member is the driving end, and the slag blocking assembly is movably connected to the second end of the driving member; When the cutterhead is in a normal excavation state and needs to be expanded, the driving member is configured to extend outward along the first direction by the first preset stroke; When the cutter disc is in an expanding state and normal excavation is required, the driving member is configured to retract inwardly along the second direction by the second preset stroke.

3. The cutterhead bucket device according to claim 2, characterized in that: The slag blocking assembly includes a slag blocking member, a connecting shaft and a connecting seat, the connecting seat is located in the cutter disc, the slag blocking member is connected to the connecting seat, and part of the structure of the slag blocking member is located on a side close to the bucket assembly; the second end of the driving member is connected to the connecting seat through the connecting shaft, and the bucket assembly is connected to a side of the connecting seat away from the driving end.

4. The cutter head bucket device according to claim 3, characterized in that: The slag blocking member comprises a first slag blocking section, a second slag blocking section and a third slag blocking section which are connected in sequence; The second slag blocking section is located at a side close to the bucket assembly and connected to the second end of the driving member, and the first slag blocking section and the third slag blocking section are connected to both ends of the second slag blocking section in the length direction; The first slag blocking section and the third slag blocking section respectively extend to the interior of the cutter disc and are attached to the inner wall of the cutter disc to prevent slag from entering the cutter disc.

5. The cutter head bucket device according to claim 4, characterized in that: The slag blocking member also includes a fourth slag blocking section and a fifth slag blocking section; The fourth slag blocking section is connected to an end of the first slag blocking section away from the second slag blocking section, and the fifth slag blocking section is connected to an end of the third slag blocking section away from the second slag blocking section; The first slag-blocking section, the second slag-blocking section, the third slag-blocking section, the fourth slag-blocking section and the fifth slag-blocking section are jointly arranged to form a cavity, and at least part of the driving assembly is located in the cavity.

6. The cutter head bucket device according to any one of claims 3 to 5, characterized in that: The bucket assembly comprises a bucket base and a bucket member, wherein the bucket base is connected to the slag blocking member, and the bucket member is connected to the bucket base.

7. The cutter head bucket device according to any one of claims 2 to 5, characterized in that: A driving seal is provided between the driving sleeve and the driving member, and the driving sleeve and the driving member are sealed by the driving seal.

8. The cutter head bucket device according to any one of claims 1 to 5, characterized in that: It also includes a disassembly and inspection component, the cutter disc has a disassembly and assembly opening, the disassembly and assembly opening is opposite to the driving component, and the disassembly and inspection component is detachably arranged at the disassembly and assembly opening.

9. The cutterhead bucket device according to claim 8, characterized in that: The disassembly inspection assembly includes a packaging component, a fastener and a detection port sealing component; The packaging component is connected to the cutter disc through the fastener and seals the assembly and disassembly port. The detection port seal is disposed between the packaging component and the cutter disc. The packaging component and the cutter disc are sealed through the detection port seal.

10. A tunnel boring machine, characterized in that: It comprises a shield body, a cutter disc and the cutter disc bucket device according to any one of claims 1 to 9, wherein the cutter disc is connected to the shield body, the cutter disc is located at the excavation end of the tunnel boring machine, and the cutter disc bucket device is connected to the cutter disc.

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