Hob replacing device

Abstract

The invention provides a hob replacing device, relates to the technical field of shield tunneling machines, and aims to solve the problems that in the prior art, a hob cannot be well replaced in an inclined shaft tunnel, and safety is low. The hob replacing device comprises a mounting base, a caliper assembly, a driving assembly and a guide rail assembly. The driving assembly is connected with a first part of the caliper assembly, and a second part of the caliper assembly is used for clamping a hob to be mounted; wherein part of the structure of the guide rail assembly is an inclined guide rail relative to the horizontal plane, and the inclined guide rail assembly is configured to be parallel to the tunneling direction of the inclined shaft. The tool changing device can achieve convenient, fast, efficient and safe tool changing operation of the inclined shaft heading machine in inclined shaft construction, is suitable for inclined shaft tool changing operation of heading of different gradients, is high in working stability, relieves the labor intensity of operators, improves the tool changing efficiency, is wide in application range, improves the user experience, and guarantees the safety in the tool changing process.

Description

Technical Field

[0001] This application relates to the technical field of shield machines, and particularly to a hob replacement device. Background Art

[0002] Pumped storage is currently the most mature large-scale energy storage method. The water conveyance tunnels of pumped storage power stations mostly adopt inclined shaft layouts. As the most advanced inclined shaft tunnel construction equipment at present, the inclined shaft tunneling machine has the advantages of safety, environmental protection, high automation, labor saving, and fast construction speed.

[0003] When carrying out the operation of replacing the cutter head hobs in an inclined shaft tunnel, especially in an inclined shaft tunnel from bottom to top, due to the influence of the self-weight of the hobs and the inclined state of the cutter head, the hobs cannot be directly lifted into the tool seat holes by a hoist. Compared with the requirement of replacing the cutter head hobs in an inclined shaft from bottom to top, the traditional cutter head replacement method of tunneling machines does not have safety, convenience, and applicability.

[0004] Therefore, researching and developing a hob replacement device for inclined shaft tunneling machines with convenience and high safety has become an urgent problem to be solved at present. Summary of the Invention

[0005] The embodiments of this application provide a hob replacement device, which can adapt to the hob replacement operation in inclined shafts with different gradients, has a wide range of applications, improves the user experience, ensures the safety during the hob replacement process, and has high promotion value.

[0006] To achieve the above object, the embodiments of this application provide a hob replacement device for the cutter head of a tunneling machine. The cutter head has hobs. The hob replacement device includes a mounting base, a caliper assembly, a driving assembly, and a guide rail assembly;

[0007] The mounting base is used to be installed on one side of the hob tool seat. The guide rail assembly is installed on the mounting base, and the guide rail assembly is used to place the hob to be installed;

[0008] Both the caliper assembly and the driving assembly are located on the mounting base. The driving assembly is connected to a first part of the caliper assembly, and a second part of the caliper assembly is used to hold the hob to be installed;

[0009] Wherein, a part of the structure of the guide rail assembly is an inclined guide rail relative to the horizontal plane, and the inclined guide rail assembly is configured to be parallel to the inclined shaft tunneling direction.

[0010] In a possible implementation manner, the guide rail assembly at least includes a first guide rail, and the first guide rail is an inclined guide rail relative to the horizontal plane;

[0011] The first guide rail is installed on the mounting base, and the first guide rail extends along the side away from the hob tool seat.

[0012] In a possible implementation, the guide rail assembly further includes a second guide rail, wherein the second guide rail is connected to an end of the first guide rail facing away from the hob cutter seat;

[0013] Wherein, the second guide rail is a straight guide rail relative to a horizontal plane; or, the second guide rail is an inclined guide rail relative to a horizontal plane, and the second guide rail is parallel to the first guide rail.

[0014] In a possible implementation, the driving assembly at least includes a pulling driving member, and along the length extension direction of the mounting base, the pulling driving member is installed at the end of the mounting base, and the pulling driving member has a pulling driving end;

[0015] When the roller cutter moves from the second guide rail to the first guide rail, the lifting drive member is connected to the first part of the caliper assembly, and the lifting drive member is configured to drive the roller cutter to move to a preset position on the second guide rail through the lifting drive end.

[0016] In a possible implementation, the driving assembly further includes a push-up driving member, the push-up driving member is mounted on the first guide rail, the extension direction of the push-up driving member is the same as the extension direction of the first guide rail, and the push-up driving member has a push-up driving end;

[0017] When the cutter roller moves to a preset position on the second guide rail, the push-up drive member is connected to the first part of the caliper assembly, and the push-up drive member is configured to drive the cutter roller to continue to move upward to the cutter roller installation line through the push drive end.

[0018] In a possible implementation, the driving assembly further includes a pull-up card plate and a push-up base;

[0019] Wherein, the lifting driving member is connected to the first part of the caliper assembly through the lifting card plate, the pushing base is arranged on the mounting base, and the pushing driving member is connected to the first part of the caliper assembly through the pushing base.

[0020] In a possible implementation, the caliper assembly includes a first caliper and a second caliper, the first caliper is a first part of the caliper assembly, the second caliper is a second part of the caliper assembly, and the second caliper is used to clamp the hob;

[0021] When the roller cutter moves from the second guide rail to the first guide rail, the first caliper is connected to the pulling drive member; when the roller cutter moves to a preset position on the second guide rail, the first caliper is connected to the pushing drive member.

[0022] In a possible implementation, it also includes a lifting rod, which is used to be installed on the roller cutter seat and is located on the side of the caliper assembly away from the mounting base. The lifting rod is configured to be connected to the second part of the caliper assembly when the roller cutter is replaced, so as to pull the roller cutter to move on the guide rail assembly through the caliper assembly.

[0023] In a possible implementation, the number of the first guide rails includes two, the two first guide rails are installed on the installation base at an interval, and the two first guide rails are arranged in parallel;

[0024] The number of the second guide rails includes two, and the two second guide rails are correspondingly connected to the two first guide rails.

[0025] In a possible implementation, the lifting drive member includes a lifting cylinder; and / or the pushing drive member includes a driving cylinder.

[0026] The roller cutter replacement device provided in the embodiment of the present application includes a mounting base, a caliper assembly, a drive assembly and a guide rail assembly. On the one hand, each component has a small size and light weight, which is convenient for disassembly and assembly in the limited space of the cutter disc, thereby realizing convenient, fast, efficient and safe cutter changing operations of the inclined shaft boring machine during inclined shaft construction; on the other hand, each component is in conformity with the roller cutter, is tightly connected and has a reliable structure; and an oil cylinder is used to provide the roller cutter transportation power, which has stable operation, strong adaptability to harsh environments, and reduces the labor intensity of personnel. At the same time, the power direction of the oil cylinder is completely consistent with the transportation direction of the roller cutter, and no transmission mechanism conversion is required, which has high efficiency, so the oil cylinder specification requirements are lower, the size and weight are small, and disassembly and assembly are convenient for transportation; on the other hand, part of the structure of the guide rail assembly is an inclined guide rail relative to the horizontal plane, and the inclined guide rail assembly is configured to be parallel to the inclined shaft excavation direction, which can adapt to the inclined shaft cutter changing operations of excavation with different slopes, is widely applicable, and has a high promotion value.

[0027] The structure of the present application and its other application objects and beneficial effects will be more clearly understood through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative labor.

[0029] Figure 1 A schematic diagram of the structure of a roller cutter replacement device provided in an embodiment of the present application;

[0030] Figure 2 Exploded view of the hob replacement device provided by the embodiment of the present application;

[0031] Figure 3 Schematic diagram of the initial state when the tool changing device provided by the embodiment of the present application installs the tool;

[0032] Figure 4 Schematic diagram of the final state when the tool changing device provided by the embodiment of the present application installs the tool;

[0033] Figure 5 Step 1 of the tool changing device provided by the embodiment of the present application for performing tool installation operation and installing the lifting driving part;

[0034] Figure 6 Step 2 of the tool changing device provided by the embodiment of the present application for performing tool installation operation and installing the lifting driving part;

[0035] Figure 7 Step 3 of the tool changing device provided by the embodiment of the present application for performing tool installation operation and installing the lifting driving part;

[0036] Figure 8 Step 4 of the tool changing device provided by the embodiment of the present application for performing tool installation operation and installing the lifting driving part;

[0037] Figure 9 Step 1 of the tool changing device provided by the embodiment of the present application for performing tool installation operation, removing the lifting driving part and installing the pushing driving part;

[0038] Figure 10 Step 2 of the tool changing device provided by the embodiment of the present application for performing tool installation operation, removing the lifting driving part and installing the pushing driving part;

[0039] Figure 11 Step 3 of the tool changing device provided by the embodiment of the present application for performing tool installation operation, removing the lifting driving part and installing the pushing driving part;

[0040] Figure 12 Step 4 of the tool changing device provided by the embodiment of the present application for performing tool installation operation, removing the lifting driving part and installing the pushing driving part.

[0041] Explanation of reference numerals:

[0042] 100 - Installation base;

[0043] 200 - Caliper assembly; 210 - First caliper; 220 - Second caliper;

[0044] 300 - Driving assembly; 310 - Lifting driving part; 320 - Pushing driving part; 330 - Lifting clamping plate; 340 - Pushing base;

[0045] 400 - Guide rail assembly; 410 - First guide rail; 420 - Second guide rail;

[0046] 500 - Lifting hanging rod;

[0047] 600 - Hob;

[0048] 700 - Hob tool holder;

[0049] 800 - Hoist;

[0050] 900 - Crowbar. Detailed implementation manner

[0051] When performing the operation of replacing the hob on the cutter head in an inclined shaft tunnel, especially in an inclined shaft tunnel from bottom to top, due to the influence of the self - weight of the hob and the inclined state of the cutter head, the hob cannot be directly lifted into the tool holder hole by the hoist. Compared with the requirement of replacing the cutter head in an inclined shaft from bottom to top, the traditional cutter head replacement method of the roadheader does not have safety, convenience and applicability.

[0052] Based on the above - mentioned technical problems, the embodiment of the present application provides a hob replacement device, which realizes convenient, fast, efficient and safe cutter head replacement operation during the construction of an inclined shaft by a roadheader, and can adapt to the cutter head replacement operation of inclined shafts with different gradients, has a wide range of applications and high popularization value.

[0053] 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 with reference to 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 protection scope of the present invention.

[0054] In the embodiment of the present application, a hob replacement device is provided for the cutter head of a roadheader, and the cutter head has hobs. Specifically, in this embodiment, the application mainly takes the application of the roadheader in inclined shaft construction as an example for description, that is, the hob replacement device is used for replacing the cutters on the cutter head during inclined shaft construction.

[0055] Refer to Figure 1 and Figure 2 As shown, in this embodiment, the hob replacement device includes a mounting base 100, a caliper assembly 200, a drive assembly 300 and a guide rail assembly 400.

[0056] Among them, the mounting base 100 is used to be mounted on one side of the hob tool holder 700, and the guide rail assembly 400 is mounted on the mounting base 100. The guide rail assembly 400 is used to place the hob 600 to be installed.

[0057] For example, the mounting base 100 can be welded and fixed to the back of the hob cutter seat 700. In addition, the mounting form of the mounting base 100 on the guide rail assembly 400 can be replaced by the mounting base 100 being arranged on the inner side of the hob cutter seat 700, and the mounting form of the guide rail assembly 400 is synchronously changed. This embodiment is not limited to this.

[0058] In this way, the roller cutter 600 can be placed in a specific position in advance through the guide rail assembly 400, which is convenient for the subsequent caliper assembly 200 to grasp and further operate, avoiding the roller cutter 600 from shaking randomly during the installation process, and reducing the difficulty of installation.

[0059] In addition, the mounting base 100 is used to support the guide rail assembly 400, which can accurately position and guide the hob 600 to be installed, so that the hob 600 can be more accurately placed on the hob seat 700 of the cutter disc, thereby improving installation efficiency and accuracy and reducing repeated adjustments caused by position deviation during the installation process.

[0060] In this embodiment, the caliper assembly 200 and the drive assembly 300 are both located on the mounting base 100 , the drive assembly 300 is connected to the first portion of the caliper assembly 200 , and the second portion of the caliper assembly 200 is used to clamp the hob 600 to be installed.

[0061] In this way, the cooperation between the caliper assembly 200 and the drive assembly 300 can provide assistance for grabbing and moving the roller cutter 600 to be installed. The drive assembly 300 is connected to the first part of the caliper assembly 200. Through the power output of the drive assembly 300, the movement of the caliper assembly 200 can be accurately controlled to achieve stable grabbing and moving of the roller cutter 600 to be installed, reduce the intensity of manual operation, and greatly improve the work efficiency of replacing the roller cutter 600.

[0062] In addition, the caliper assembly 200 can flexibly clamp the installed roller cutter 600 to meet the gripping requirements of roller cutters 600 of different specifications, and driven by the drive assembly 300, it can achieve multi-angle and multi-directional movement, making it easy to complete the replacement of the roller cutter 600 in a complex cutter head environment.

[0063] In order to adapt to the tool changing operation in inclined shafts with different slopes, in this embodiment, part of the structure of the guide rail assembly 400 is an inclined guide rail relative to the horizontal plane, and the inclined guide rail assembly 400 is configured to be parallel to the inclined shaft excavation direction.

[0064] For example, there is no limitation on the inclination angle of the guide rail assembly 400, and it can be set according to actual working conditions.

[0065] This design enables the guide rail assembly 400 to be closely integrated with the actual working conditions of inclined shaft tunneling. In the inclined shaft environment, the inclined guide rail of the cutter changing device can better conform to the slope of the inclined shaft, making the cutter 600 more in line with the spatial characteristics and tunneling direction requirements of the inclined shaft during the replacement process, and avoiding problems such as difficult installation or inability to replace the cutter 600 normally due to the inconsistent direction between the guide rail and the inclined shaft.

[0066] At the same time, since the inclined guide rail is parallel to the tunneling direction of the inclined shaft, during the replacement process of the cutter 600, the movement and installation of the cutter 600 are more stable and smooth, reducing the safety risks that may be caused by the unstable movement of the cutter 600 on the inclined plane, and ensuring the safety of the operator and the normal operation of the equipment.

[0067] Therefore, the cutter changing device provided in this embodiment can realize convenient, fast, efficient, and safe cutter changing operations for the inclined shaft tunneling machine during inclined shaft construction, adapt to cutter changing operations for inclined shafts with different slopes, has high working stability, reduces the labor intensity of the operator, improves the cutter changing efficiency, is widely applicable, enhances the user experience, and ensures the safety during the cutter changing process.

[0068] In a possible implementation manner, referring to Figure 1 and Figure 2 as shown, the guide rail assembly 400 at least includes a first guide rail 410, and the first guide rail 410 is an inclined guide rail relative to the horizontal plane; the first guide rail 410 is installed on the installation base 100, and the first guide rail 410 extends along the side away from the cutter seat 700.

[0069] In this embodiment, the first guide rail 410 is inclined relative to the horizontal plane to fit the inclination angle of the inclined shaft. In this way, in the scenario of replacing the cutter 600 of the inclined shaft tunneling machine, when placing the cutter 600 to be replaced on the inclined first guide rail 410, by using the component of gravity, it is more labor-saving for the operator to carry the cutter 600, reducing the labor cost and labor intensity. Especially in the case where the cutter 600 needs to be replaced frequently, this labor-saving effect can significantly improve the work efficiency.

[0070] In this embodiment, extending the first guide rail 410 along the side away from the cutter seat 700 helps to provide a guiding path for the cutter 600 starting from a position away from the seat. The cutter 600 slides along the guide rail and can accurately move towards the seat direction, facilitating precise docking with the seat, reducing the number of position adjustments during the installation process, and improving the installation accuracy and efficiency.

[0071] In this embodiment, the first guide rail 410 is installed on the installation base 100, making the overall structure compact and effectively utilizing the space on one side of the hob tool holder 700. This layout method does not occupy too much space around the inclined shaft tunneling machine, enabling other equipment and components to be more reasonably arranged within the limited space of the inclined shaft, thus improving the overall space utilization rate of the equipment.

[0072] In practical applications, the hob 600 slides on the inclined first guide rail 410, and the first guide rail 410 can provide stable support and guidance for it. Compared with the situation without a guide rail or a non-inclined guide rail, the inclined guide rail can reduce the shaking and deviation of the hob 600 during transportation, ensuring that the hob 600 remains stable throughout the process of being transported to the tool holder position and reducing the risk of installation failure or equipment damage caused by the instability of the hob 600.

[0073] In a possible implementation manner, referring to Figure 1 and Figure 2 as shown, the guide rail assembly 400 may further include a second guide rail 420. The second guide rail 420 is connected to the end of the first guide rail 410 facing away from the hob tool holder 700 and is used to receive the hoisted hob 600, place it, and adjust the shape of the hob 600.

[0074] Among them, the shape of the second guide rail 420 is not limited. Exemplarily, the second guide rail 420 can be a straight guide rail relative to the horizontal plane. In this way, it can adapt to different working scenarios. Before transporting the hob 600 from the storage area to the inclined first guide rail 410 near the tool holder, the straight guide rail can be laid on a relatively flat ground or platform, facilitating the movement and adjustment of the hob 600 in the horizontal direction. This is very practical for scenarios such as preparatory work near the inclined shaft wellhead or preliminary transfer of the hob 600 on the ground, increasing the flexibility of the transportation process and enabling the hob 600 to transition more smoothly to the inclined first guide rail 410 and then be sent to the tool holder position.

[0075] Or, exemplarily, the second guide rail 420 can be an inclined guide rail relative to the horizontal plane, and the second guide rail 420 is parallel to the first guide rail 410. In this way, when the second guide rail 420 is an inclined guide rail relative to the horizontal plane and is parallel to the first guide rail 410, it can provide a longer transportation path with a unified inclination angle for the hob 600. This makes the stress state of the hob 600 relatively stable during the entire transportation process and prevents impacts or instability caused by sudden changes in the inclination angle of the guide rail. The hob 600 can slide more smoothly from a longer distance along the continuous inclined guide rail to near the tool holder, reducing the frequency of manual adjustment and further improving the transportation efficiency and stability.

[0076] In this embodiment, the case where the second guide rail 420 is a straight guide rail relative to the horizontal plane is mainly used as an example for illustration.

[0077] In addition, in some embodiments, the second guide rail 420 is connected to the end of the first guide rail 410 that faces away from the hob tool holder 700. Whether it is a straight or inclined parallel design, it can better connect with the storage area of the hob 600. The hob 600 can first perform preliminary positioning, inspection, or preparation work on the second guide rail 420, and then smoothly slide along the guide rail towards the hob tool holder 700.

[0078] For example, some detection devices or temporary fixing devices can be provided on the second guide rail 420 to quickly detect the parameters of the hob 600 or simply fix the hob 600 to ensure its stability during the movement towards the tool holder, optimizing the entire preparation process for replacing the hob 600.

[0079] In a possible implementation, referring to Figure 1 and Figure 2 as shown, the driving assembly 300 can at least include a lifting driving member 310. Along the length extension direction of the mounting base 100, the lifting driving member 310 is installed at the end of the mounting base 100.

[0080] Exemplarily, when the hob 600 moves from the second guide rail 420 to the first guide rail 410, the lifting driving member 310 is connected to the first part of the caliper assembly 200, and the lifting driving member 310 is configured to drive the hob 600 to move on the second guide rail 420 to a preset position.

[0081] It should be noted that the preset position is not limited in this embodiment. For example, it can be a position close to the hob tool holder 700, and the lifting can be specifically performed according to the actual working conditions.

[0082] Exemplarily, the lifting driving member 310 can be a lifting oil cylinder.

[0083] In this way, when the hob 600 moves from the second guide rail 420 to the first guide rail 410, the lifting driving member 310 is connected to the caliper assembly 200, and the moving distance of the hob 600 on the second guide rail 420 can be precisely controlled to make it accurately reach the preset position. This precise positioning function is crucial for the subsequent smooth sliding of the hob 600 along the first guide rail 410 to the tool holder and for completing the installation, greatly improving the position control accuracy during the replacement of the hob 600 and reducing the manual positioning error.

[0084] In addition, the lifting driving member 310 can provide a stable pulling force for the caliper assembly 200 and the held hob 600. In the complex working conditions of the inclined shaft, such as the existence of factors such as vibration and slope change, stable driving can ensure the smooth movement of the hob 600 on the second guide rail 420, avoiding the shaking, deviation or even slipping of the hob 600 caused by unstable driving force, and ensuring the safety and stability of the replacement operation of the hob 600. The automation of the handling process of the hob 600 is realized, saving labor and time costs and improving the replacement efficiency of the hob 600.

[0085] In a possible implementation manner, referring to Figure 1 and Figure 2 As shown, the driving assembly 300 may further include a lifting driving member 320. The lifting driving member 320 is installed on the first guide rail 410, and the driving direction of the lifting driving member 320 is the same as the extending direction of the first guide rail 410. When the hob 600 moves to a preset position on the first guide rail 410, the lifting driving member 320 is connected to the first part of the caliper assembly 200, and the lifting driving member 320 is configured to drive the hob 600 to continue to move upward to the hob installation line.

[0086] Exemplarily, the lifting driving member 320 may be a lifting oil cylinder.

[0087] In this way, when the hob 600 reaches the preset position on the first guide rail 410 by its own gravity or other preliminary driving forces, the lifting driving member 320 intervenes to accurately move the hob 600 upward to the hob installation line, ensuring that the hob 600 accurately reaches the precise position required for installation, improving the installation accuracy of the hob 600, and reducing installation problems caused by position deviation, such as the hob 600 not perfectly fitting with the tool holder, affecting the normal operation of the roadheader.

[0088] In addition, it should be noted that during the downward sliding process of the hob 600 along the first guide rail 410, the hob 600 may not accurately stop at the ideal installation starting position due to various factors (such as uneven guide rail surface, vibration in the inclined shaft, etc.). The lifting driving member 320 can effectively compensate for these errors. By driving the hob 600 upward again, it is ensured that the hob 600 can always accurately reach the installation line, thus guaranteeing the consistency and reliability of the installation of the hob 600.

[0089] At the same time, the use of the lifting driving member 320 makes the process from the movement of the hob 600 on the guide rail to the final installation position form a coherent operation process. This coherence reduces the pause and waiting time between operation links and improves the overall efficiency of the replacement of the hob 600.

[0090] It should be noted that the lifting cylinder and the pulling cylinder are of the same model and specification and are interchangeable. They are installed in a flange manner, and the piston rod can be in a threaded connection form. Exemplarily, only 1 lifting cylinder or pulling cylinder can be used. For example, after the pulling cylinder pulls the hob 600 in place in the first step, a limiting device is used to connect the caliper of the hob 600 and the tool changing guide rail to stabilize the hob 600. Then, the pulling cylinder is removed and installed at the position of the lifting cylinder, and the limiting device is removed to continue lifting the hob 600 to the installation line.

[0091] In a possible implementation manner, with reference to Figure 1 and Figure 2 as shown, the driving assembly 300 may further include a pulling clamping plate 330 and a lifting base 340; wherein, the pulling driving member 310 is connected to the first part of the caliper assembly 200 through the pulling clamping plate 330, the lifting base 340 is arranged on the first guide rail 410, and the pushing driving member 320 is connected to the first part of the caliper assembly 200 through the lifting base 340.

[0092] Among them, the above design method enhances the connection stability between the driving assembly 300 and the caliper assembly 200. During the process of replacing the hob 600, whether the pulling driving member 310 pulls the hob 600 or the pushing driving member 320 pushes the hob 600, the stable connection can ensure the effective transmission of the driving force, avoid the loss of the driving force or the deviation of the driving direction caused by the loosening of the connection, and ensure that the hob 600 moves accurately along the predetermined path.

[0093] It should be noted that the lifting base 340 is arranged on the first guide rail 410, and the connection between the pushing driving member 320 and the caliper assembly 200 adapts to the position and working characteristics of the first guide rail 410. This layout method makes full use of the equipment space, makes the cooperation between the components more compact and coordinated, and improves the overall structural rationality of the hob changing device.

[0094] In this embodiment, no limitations are imposed on the shapes and sizes of the pulling clamping plate 330 and the lifting base 340. Exemplarily, by adjusting the structural parameters (such as shapes, sizes, etc.) of the pulling clamping plate 330 and the lifting base 340, different specifications of driving members, caliper assemblies 200, and hobs 600 can be conveniently adapted. For example, for caliper assemblies 200 of different sizes, pulling clamping plates 330 and lifting bases 340 with different shapes can be designed to achieve a tight connection, thereby enhancing the adaptability of the hob changing device to various equipment models and hob 600 specifications and improving the versatility of the equipment.

[0095] In a possible implementation manner, with reference to Figure 1 and Figure 2As shown, the caliper assembly 200 includes a first caliper 210 and a second caliper 220 . The first caliper 210 is a first part of the caliper assembly 200 , and the second caliper 220 is a second part of the caliper assembly 200 . The second caliper 220 is used to clamp the roller cutter 600 .

[0096] When the roller cutter 600 moves from the second guide rail 420 to the first guide rail 410 , the first caliper 210 is connected to the lifting driver 310 ; when the roller cutter 600 moves to a preset position on the second guide rail 420 , the first caliper 210 is connected to the pushing driver 320 .

[0097] Exemplarily, the first caliper 210 provides two cylinder mounting points, whose outer boundaries fit into the flat rail slot to support the cutter wheel 600 stably located on the inclined rail, and whose inner boundaries are used to support the cutter wheel 600 without limiting the freedom of lateral movement of the cutter wheel 600; the second caliper 220 provides a hook point; the combination of the two is used to clamp the cutter wheel 600 as a whole, and the two can be separated to meet different needs when the cutter wheel 600 is transported in different states.

[0098] The design of the caliper assembly 200 enables the roller cutter 600 to form a coherent operation process during the entire replacement process, from the second guide rail 420 to the first guide rail 410, and then to the installation line. The first caliper 210 automatically switches the connection with different driving parts according to the position change of the roller cutter 600, without the need for complex manual adjustment and intervention, reducing the pause and waiting time between operation links, and improving the overall efficiency of the replacement of the roller cutter 600.

[0099] At the same time, the combined design of the first caliper 210 and the second caliper 220 has good versatility. The second caliper 220 can be designed according to the size and shape of the roller cutters 600 of different specifications to ensure that the roller cutters 600 can be firmly clamped; and the connection method between the first caliper 210 and the driving member can remain relatively stable. By adjusting the parameters of the second caliper 220, it can be adapted to roller cutters 600 of various specifications, thereby improving the compatibility of the roller cutter replacement device.

[0100] In one possible implementation, referring to Figure 1 and Figure 2 As shown, a lifting rod 500 may also be included. The lifting rod 500 is used to be installed on the roller cutter seat 700 and is located on the side of the caliper assembly 200 away from the mounting base 100. The lifting rod 500 is configured to be connected to the second part of the caliper assembly 200 when the roller cutter 600 is replaced, so as to pull the roller cutter 600 to move on the guide rail assembly 400 through the caliper assembly 200.

[0101] Exemplarily, the lifting hanging rod 500 is placed in the tool holder card slot to provide a hanging point. Lifting rigging such as the hoist 800 can lift and adjust the hob 600 from the flat rail to the inclined rail and align the tool position.

[0102] Among them, on the basis of the original lifting drive member 310 and the lifting drive member 320, the lifting hanging rod 500 provides an additional driving force. When replacing the hob 600, the second part of the caliper assembly 200 is connected to the lifting hanging rod 500 and works in coordination with other driving methods. For example, during the process of the hob 600 moving from the second guide rail 420 to the first guide rail 410, the lifting drive member 310 and the lifting hanging rod 500 provide pulling forces simultaneously, which can accelerate the moving speed of the hob 600, reduce the moving time of the hob 600 on the guide rail, and thus significantly improve the overall efficiency of replacing the hob 600.

[0103] In addition, the lifting hanging rod 500 is installed on the hob tool holder 700, with a relatively fixed and reasonable position. When replacing the hob 600, the operator only needs to connect the second part of the caliper assembly 200 to the lifting hanging rod 500, and then can realize the movement of the hob 600 by means of its pulling force, without the need for complex equipment adjustment or additional manual handling. This simplified operation process reduces the links of manual intervention and makes the process of replacing the hob 600 smoother and more efficient.

[0104] In a possible implementation manner, referring to Figure 1 and Figure 2 as shown, the number of the first guide rails 410 may include two, and the two first guide rails 410 are installed at intervals on the installation base 100, and the two first guide rails 410 are arranged in parallel; the number of the second guide rails 420 may include two, and the two second guide rails 420 are correspondingly connected to the two first guide rails 410.

[0105] It should be noted that in this embodiment, the number and arrangement mode of the first guide rail 410 and the second guide rail 420 include but are not limited to the above manner, and can be specifically selected according to the actual working conditions.

[0106] Exemplarily, the first guide rail 410 may be composed of two parallel round steel pipes, and the second guide rail 420 may be composed of two parallel round steel pipes. Exemplarily, the round steel pipes can also be replaced with square pipes or other forms, and this embodiment does not limit this.

[0107] In this way, on the one hand, two first guide rails 410 arranged in parallel and at intervals and the corresponding two second guide rails 420 can provide bilateral guidance for the hob 600. During the movement of the hob 600, the bilateral guide rails can better constrain the movement trajectory of the hob 600 and prevent the hob 600 from shifting or swaying left and right. For example, when the hob 600 slides on the guide rails, the guide rails on both sides simultaneously apply a supporting force and a guiding force to the hob 600, causing the hob 600 to move in a straight line, ensuring that it accurately moves from the second guide rail 420 to the first guide rail 410 and finally reaches the hob installation position, greatly improving the stability and accuracy of the movement of the hob 600.

[0108] On the other hand, the two first guide rails 410 and the two second guide rails 420 can jointly share the weight of the hob 600, reducing the pressure borne by a single guide rail. Compared with the single guide rail structure, the double guide rail structure can bear a greater weight load, reducing the risk of damage to the guide rail due to overload, extending the service life of the guide rail, and improving the reliability of the equipment.

[0109] The steps for loading the cutter head of the inclined shaft tunneling machine are as follows:

[0110] Referring to Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, first install the guide rail assembly 400 (including the inclined rail and the flat rail) on the base 100 installed on the back of the cutter holder, install the lifting oil cylinder on the first guide rail 410 (inclined rail), place the lifting hanging rod 500 in the cutter holder slot and hang the hoist 800, use the internal hoisting device of the cutter head to lift the hob 600 onto the second guide rail 420 (flat rail), and install the caliper assembly 200 (including the first caliper 210 and the second caliper 220); then use the hoist 800 to connect the second caliper 220 to lift the hob 600, and the hob 600 is placed on the inclined rail from horizontal to inclined. At this time, the outer boundary of the first caliper 210 fits with the flat rail slot, and the hob 600 is stable; then the piston rod of the lifting oil cylinder extends, use the lifting clamping plate 330 to connect the piston rod and the first caliper 210, and then remove the lifting hanging rod 500, the hoist 800, and the second caliper 220; then the piston rod of the lifting oil cylinder retracts to drive the hob 600 to move up on the inclined rail.

[0111] Continue to refer to Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, after the stroke reaches the position, install the lifting base 340 on the inclined rail, then install the lifting oil cylinder, and remove the lifting oil cylinder and the lifting clamping plate 330. Immediately, the piston rod of the lifting oil cylinder extends to push the hob 600 to continue moving upward. After reaching the hob installation line, use a crowbar 900 to pry the hob 600 to move horizontally to the hob installation position, install the locking block of the hob 600, and disassemble the guide rail assembly 400, etc., to complete the tool installation operation.

[0112] Exemplarily, Figure 3 is a schematic diagram of the initial state when installing the tool for the tool changing device provided by the embodiment of the present application, Figure 4 is a schematic diagram of the final state when installing the tool for the tool changing device provided by the embodiment of the present application.

[0113] The steps for the cutter head of the inclined shaft tunneling machine to perform the tool removal operation are as follows:

[0114] In reverse order of the tool installation steps, first remove the locking block of the hob 600. At this time, the cutter shaft of the hob 600 is still in the cutter seat slot in a stable state. Then install the guide rail assembly 400, the lifting base 340, the lifting oil cylinder, the first caliper 210. The piston rod of the oil cylinder extends to the hob installation line, and use a crowbar to horizontally move the hob 600 into the first caliper 210. The piston rod of the lifting oil cylinder retracts, and the hob 600 moves down slowly following the movement. Immediately, install the lifting oil cylinder, the lifting clamping plate 330, connect the first caliper 210, remove the lifting oil cylinder and the lifting base 340. The piston rod of the lifting oil cylinder extends, and the hob 600 moves down slowly following the movement. After reaching the flat rail, remove the lifting clamping plate 330, use the hoisting device inside the cutter head to lift the hob 600, and disassemble the tool changing guide rail, etc., to complete the tool removal operation.

[0115] The hob replacement device provided by the embodiment of the present application includes an installation base, a caliper assembly, a driving assembly, and a guide rail assembly. On the one hand, the external dimensions and weights of the components are small, which is convenient for disassembly and assembly in the limited space of the cutter head, realizing convenient, fast, efficient, and safe tool changing operations for the inclined shaft tunneling machine during inclined shaft construction. On the other hand, the external shapes of the components fit well with the hob, the connections are tight, and the structure is reliable. And the oil cylinder is used to provide the power for transporting the hob, the work is stable, the adaptability to harsh environments is strong, the labor intensity of personnel is reduced. At the same time, the power direction of the oil cylinder is completely consistent with the hob transportation direction, without the need for a transmission mechanism conversion, with high efficiency. Therefore, the requirements for the oil cylinder specifications are lower, the external shape and weight are small, and the disassembly, assembly, and transportation are convenient. On the other hand, part of the structure of the guide rail assembly is an inclined guide rail relative to the horizontal plane, and the inclined guide rail assembly is configured to be parallel to the inclined shaft tunneling direction, which can adapt to the tool changing operations of inclined shafts with different slopes, has a wide range of applications, and has high promotion value.

[0116] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "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. It 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. Therefore, it should not be construed as a limitation to the present application.

[0117] In the description of the present application, it should be understood that the terms "comprising" and "having" used herein and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising 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 not clearly listed or inherent to these processes, methods, products or devices.

[0118] Unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has 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 described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, such 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 roller cutter replacement device, characterized in that: A cutterhead for a tunnel boring machine, the cutterhead having a roller cutter, the roller cutter replacement device comprising a mounting base, a caliper assembly, a drive assembly and a guide rail assembly; The mounting base is used to be mounted on one side of the hob cutter seat, the guide rail assembly is mounted on the mounting base, and the guide rail assembly is used to place the hob cutter to be mounted; The caliper assembly and the drive assembly are both located on a mounting base, the drive assembly is connected to a first portion of the caliper assembly, and a second portion of the caliper assembly is used to clamp a hob to be mounted; Part of the structure of the guide rail assembly is an inclined guide rail relative to a horizontal plane, and the inclined guide rail assembly is configured to be parallel to the inclined shaft excavation direction.

2. The roller cutter replacement device according to claim 1, characterized in that: The guide rail assembly comprises at least a first guide rail, wherein the first guide rail is an inclined guide rail relative to a horizontal plane; The first guide rail is mounted on the mounting base, and the first guide rail extends along a side away from the hob cutter seat.

3. The roller cutter replacement device according to claim 2, characterized in that: The guide rail assembly further comprises a second guide rail, wherein the second guide rail is connected to an end of the first guide rail facing away from the hob cutter seat; Wherein, the second guide rail is a straight guide rail relative to a horizontal plane; or, the second guide rail is an inclined guide rail relative to a horizontal plane, and the second guide rail is parallel to the first guide rail.

4. The roller cutter replacement device according to claim 3, characterized in that: The driving assembly at least comprises a pull-up driving member, which is installed at the end of the mounting base along the length extension direction of the mounting base; When the roller cutter moves from the second guide rail to the first guide rail, the lifting drive is connected to the first part of the caliper assembly, and the lifting drive is configured to drive the roller cutter to move to a preset position on the first guide rail.

5. The roller cutter replacement device according to claim 4, characterized in that: The driving assembly further comprises a push-up driving member, the push-up driving member is mounted on the first guide rail, and the driving direction of the push-up driving member is the same as the extending direction of the first guide rail; When the roller cutter moves to a preset position on the first guide rail, the push-up driving member is connected to the first part of the caliper assembly, and the push-up driving member is configured to drive the roller cutter to continue to move upward to the roller cutter installation line.

6. The roller cutter replacement device according to claim 5, characterized in that: The driving assembly also includes a pull-up card plate and a push-up base; The lifting drive is connected to the first part of the caliper assembly through the lifting card plate, the pushing base is arranged on the first guide rail, and the pushing drive is connected to the first part of the caliper assembly through the pushing base.

7. The roller cutter replacement device according to claim 5, characterized in that: The caliper assembly comprises a first caliper and a second caliper, wherein the first caliper is a first part of the caliper assembly, the second caliper is a second part of the caliper assembly, and the second caliper is used for clamping the hob; When the roller cutter moves from the second guide rail to the first guide rail, the first caliper is connected to the pulling drive member; when the roller cutter moves to a preset position on the second guide rail, the first caliper is connected to the pushing drive member.

8. The roller cutter replacement device according to any one of claims 1 to 7, characterized in that: It also includes a lifting rod, which is used to be installed on the roller cutter seat and is located on the side of the caliper assembly away from the mounting base. The lifting rod is configured to be connected to the second part of the caliper assembly when the roller cutter is replaced, so as to pull the roller cutter to move on the guide rail assembly through the caliper assembly.

9. The roller cutter replacement device according to any one of claims 3 to 7, characterized in that: The number of the first guide rails includes two, the two first guide rails are installed on the installation base at an interval, and the two first guide rails are arranged in parallel; The number of the second guide rails includes two, and the two second guide rails are correspondingly connected to the two first guide rails.

10. The roller cutter replacement device according to any one of claims 5 to 7, characterized in that: The lifting drive member includes a lifting cylinder; and / or, The push-up driving member comprises a push-up oil cylinder.

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